From dcff124efb2ea4a834b74ac0974aa2f2fd000b40 Mon Sep 17 00:00:00 2001 From: Dmitry Vyukov Date: Sat, 4 Jul 2020 10:38:29 +0200 Subject: go.mod: switch to modules for dependency management Godep is long deprecated and modules is the future. Updating dependencies with godep is painful and non-transparent. This will hopefully help to create custom golangci-lint linters. The change was created with: go mod init rm -rf vendor go mod vendor Fixes #1247 --- .../go/compute/metadata/metadata.go | 2 +- vendor/cloud.google.com/go/doc.go | 2 +- .../go/internal/version/update_version.sh | 0 vendor/cloud.google.com/go/storage/CHANGES.md | 45 +- vendor/cloud.google.com/go/storage/LICENSE | 202 ++ vendor/cloud.google.com/go/storage/bucket.go | 143 +- vendor/cloud.google.com/go/storage/doc.go | 29 +- vendor/cloud.google.com/go/storage/go.mod | 17 +- vendor/cloud.google.com/go/storage/go.sum | 110 +- vendor/cloud.google.com/go/storage/hmac.go | 66 +- vendor/cloud.google.com/go/storage/storage.go | 124 +- .../github.com/google/go-cmp/cmp/cmpopts/equate.go | 89 - .../github.com/google/go-cmp/cmp/cmpopts/ignore.go | 207 -- .../github.com/google/go-cmp/cmp/cmpopts/sort.go | 147 -- .../google/go-cmp/cmp/cmpopts/struct_filter.go | 182 -- .../github.com/google/go-cmp/cmp/cmpopts/xform.go | 35 - vendor/github.com/google/go-cmp/cmp/compare.go | 83 +- .../github.com/google/go-cmp/cmp/export_panic.go | 4 +- .../github.com/google/go-cmp/cmp/export_unsafe.go | 6 +- .../go-cmp/cmp/internal/testprotos/protos.go | 116 - .../go-cmp/cmp/internal/teststructs/project1.go | 267 --- .../go-cmp/cmp/internal/teststructs/project2.go | 74 - .../go-cmp/cmp/internal/teststructs/project3.go | 82 - .../go-cmp/cmp/internal/teststructs/project4.go | 142 -- .../go-cmp/cmp/internal/teststructs/structs.go | 197 -- .../google/go-cmp/cmp/internal/value/sort.go | 4 +- .../google/go-cmp/cmp/internal/value/zero.go | 9 +- vendor/github.com/google/go-cmp/cmp/options.go | 55 +- vendor/github.com/google/go-cmp/cmp/path.go | 71 +- .../github.com/google/go-cmp/cmp/report_compare.go | 2 +- .../github.com/google/go-cmp/cmp/report_reflect.go | 1 - .../github.com/google/go-cmp/cmp/report_slices.go | 4 +- vendor/github.com/google/go-cmp/cmp/report_text.go | 7 +- vendor/github.com/googleapis/gax-go/.gitignore | 1 - .../googleapis/gax-go/CODE_OF_CONDUCT.md | 43 - 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| 2 +- vendor/golang.org/x/oauth2/oauth2.go | 2 +- vendor/golang.org/x/sys/unix/mkall.sh | 0 vendor/golang.org/x/sys/unix/mkasm_darwin.go | 78 - vendor/golang.org/x/sys/unix/mkerrors.sh | 0 vendor/golang.org/x/sys/unix/mkmerge.go | 521 ---- vendor/golang.org/x/sys/unix/mkpost.go | 127 - vendor/golang.org/x/sys/unix/mksyscall.go | 402 ---- vendor/golang.org/x/sys/unix/mksyscall_aix_ppc.go | 415 ---- .../golang.org/x/sys/unix/mksyscall_aix_ppc64.go | 614 ----- vendor/golang.org/x/sys/unix/mksyscall_solaris.go | 341 --- vendor/golang.org/x/sys/unix/mksysctl_openbsd.go | 355 --- vendor/golang.org/x/sys/unix/mksysnum.go | 190 -- vendor/golang.org/x/sys/unix/syscall.go | 2 +- vendor/golang.org/x/sys/unix/types_aix.go | 237 -- vendor/golang.org/x/sys/unix/types_darwin.go | 283 --- vendor/golang.org/x/sys/unix/types_dragonfly.go | 269 --- vendor/golang.org/x/sys/unix/types_freebsd.go | 406 ---- vendor/golang.org/x/sys/unix/types_netbsd.go | 300 --- vendor/golang.org/x/sys/unix/types_openbsd.go | 283 --- vendor/golang.org/x/sys/unix/types_solaris.go | 269 --- vendor/golang.org/x/text/transform/transform.go | 2 +- vendor/golang.org/x/text/unicode/bidi/bidi.go | 2 +- vendor/golang.org/x/text/unicode/bidi/gen.go | 133 -- .../golang.org/x/text/unicode/bidi/gen_ranges.go | 57 - .../golang.org/x/text/unicode/bidi/gen_trieval.go | 64 - .../golang.org/x/text/unicode/norm/maketables.go | 986 -------- vendor/golang.org/x/text/unicode/norm/normalize.go | 2 +- vendor/golang.org/x/text/unicode/norm/triegen.go | 117 - vendor/golang.org/x/tools/cmd/goimports/doc.go | 2 +- vendor/golang.org/x/tools/go/analysis/doc.go | 33 - .../golang.org/x/tools/go/ast/astutil/imports.go | 7 +- .../x/tools/go/ast/inspector/inspector.go | 4 +- .../golang.org/x/tools/go/buildutil/allpackages.go | 2 +- .../x/tools/go/gcexportdata/gcexportdata.go | 2 +- vendor/golang.org/x/tools/go/gcexportdata/main.go | 99 - vendor/golang.org/x/tools/go/internal/cgo/cgo.go | 220 -- .../x/tools/go/internal/cgo/cgo_pkgconfig.go | 39 - .../x/tools/go/internal/gcimporter/gcimporter.go | 2 +- vendor/golang.org/x/tools/go/loader/doc.go | 204 -- vendor/golang.org/x/tools/go/loader/loader.go | 1086 --------- vendor/golang.org/x/tools/go/loader/util.go | 124 - vendor/golang.org/x/tools/go/packages/doc.go | 2 +- vendor/golang.org/x/tools/go/packages/golist.go | 576 ++--- .../x/tools/go/packages/golist_overlay.go | 176 +- vendor/golang.org/x/tools/go/packages/packages.go | 38 +- vendor/golang.org/x/tools/go/types/typeutil/map.go | 2 +- vendor/golang.org/x/tools/internal/imports/fix.go | 583 ++--- .../golang.org/x/tools/internal/imports/imports.go | 21 +- .../golang.org/x/tools/internal/imports/mkindex.go | 173 -- .../x/tools/internal/imports/mkstdlib.go | 128 - vendor/golang.org/x/tools/internal/imports/mod.go | 271 ++- .../x/tools/internal/imports/mod_cache.go | 94 +- .../x/tools/internal/packagesinternal/packages.go | 4 + .../api/compute/v0.beta/compute-gen.go | 2 +- .../google.golang.org/api/googleapi/googleapi.go | 2 +- .../api/storage/v1/storage-gen.go | 2 +- vendor/google.golang.org/appengine/appengine.go | 2 +- .../google.golang.org/appengine/datastore/doc.go | 2 +- .../internal/datastore/datastore_v3.proto | 0 .../google.golang.org/appengine/internal/regen.sh | 0 .../internal/urlfetch/urlfetch_service.pb.go | 527 +++++ .../internal/urlfetch/urlfetch_service.proto | 64 + vendor/google.golang.org/appengine/log/log.go | 2 +- vendor/google.golang.org/appengine/mail/mail.go | 2 +- .../google.golang.org/appengine/travis_install.sh | 0 vendor/google.golang.org/appengine/travis_test.sh | 0 .../appengine/urlfetch/urlfetch.go | 210 ++ vendor/google.golang.org/appengine/user/user.go | 2 +- .../binarylog/grpc_binarylog_v1/binarylog.pb.go | 2 +- vendor/google.golang.org/grpc/codegen.sh | 0 vendor/google.golang.org/grpc/codes/codes.go | 2 +- .../grpc/credentials/credentials.go | 2 +- vendor/google.golang.org/grpc/doc.go | 2 +- vendor/google.golang.org/grpc/grpclog/grpclog.go | 2 +- 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.../go/tools/internal/passes/buildir/buildir.go | 113 - .../go/tools/internal/passes/buildssa/buildssa.go | 116 + .../go/tools/internal/renameio/renameio.go | 56 +- .../go/tools/internal/robustio/robustio.go | 53 - .../go/tools/internal/robustio/robustio_other.go | 28 - .../go/tools/internal/robustio/robustio_windows.go | 112 - .../go/tools/internal/sharedcheck/lint.go | 21 +- vendor/honnef.co/go/tools/ir/LICENSE | 28 - vendor/honnef.co/go/tools/ir/blockopt.go | 209 -- vendor/honnef.co/go/tools/ir/builder.go | 2478 -------------------- vendor/honnef.co/go/tools/ir/const.go | 153 -- vendor/honnef.co/go/tools/ir/create.go | 271 --- vendor/honnef.co/go/tools/ir/doc.go | 129 - vendor/honnef.co/go/tools/ir/dom.go | 461 ---- vendor/honnef.co/go/tools/ir/emit.go | 450 ---- vendor/honnef.co/go/tools/ir/exits.go | 271 --- vendor/honnef.co/go/tools/ir/func.go | 963 -------- vendor/honnef.co/go/tools/ir/html.go | 1130 --------- vendor/honnef.co/go/tools/ir/identical.go | 7 - vendor/honnef.co/go/tools/ir/identical_17.go | 7 - vendor/honnef.co/go/tools/ir/irutil/load.go | 183 -- vendor/honnef.co/go/tools/ir/irutil/switch.go | 264 --- vendor/honnef.co/go/tools/ir/irutil/util.go | 58 - vendor/honnef.co/go/tools/ir/irutil/visit.go | 79 - vendor/honnef.co/go/tools/ir/lift.go | 857 ------- vendor/honnef.co/go/tools/ir/lvalue.go | 116 - vendor/honnef.co/go/tools/ir/methods.go | 239 -- vendor/honnef.co/go/tools/ir/mode.go | 98 - vendor/honnef.co/go/tools/ir/print.go | 478 ---- vendor/honnef.co/go/tools/ir/sanity.go | 555 ----- vendor/honnef.co/go/tools/ir/source.go | 270 --- vendor/honnef.co/go/tools/ir/ssa.go | 1855 --------------- vendor/honnef.co/go/tools/ir/staticcheck.conf | 3 - vendor/honnef.co/go/tools/ir/util.go | 89 - vendor/honnef.co/go/tools/ir/wrappers.go | 290 --- vendor/honnef.co/go/tools/ir/write.go | 5 - vendor/honnef.co/go/tools/lint/lint.go | 60 +- vendor/honnef.co/go/tools/lint/lintdsl/lintdsl.go | 402 +++- 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vendor/honnef.co/go/tools/ssa/builder.go | 2379 +++++++++++++++++++ vendor/honnef.co/go/tools/ssa/const.go | 169 ++ vendor/honnef.co/go/tools/ssa/create.go | 270 +++ vendor/honnef.co/go/tools/ssa/doc.go | 125 + vendor/honnef.co/go/tools/ssa/dom.go | 343 +++ vendor/honnef.co/go/tools/ssa/emit.go | 469 ++++ vendor/honnef.co/go/tools/ssa/func.go | 765 ++++++ vendor/honnef.co/go/tools/ssa/identical.go | 7 + vendor/honnef.co/go/tools/ssa/identical_17.go | 7 + vendor/honnef.co/go/tools/ssa/lift.go | 657 ++++++ vendor/honnef.co/go/tools/ssa/lvalue.go | 123 + vendor/honnef.co/go/tools/ssa/methods.go | 239 ++ vendor/honnef.co/go/tools/ssa/mode.go | 100 + vendor/honnef.co/go/tools/ssa/print.go | 435 ++++ vendor/honnef.co/go/tools/ssa/sanity.go | 535 +++++ vendor/honnef.co/go/tools/ssa/source.go | 293 +++ vendor/honnef.co/go/tools/ssa/ssa.go | 1745 ++++++++++++++ vendor/honnef.co/go/tools/ssa/staticcheck.conf | 3 + vendor/honnef.co/go/tools/ssa/testmain.go | 271 +++ 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b/vendor/cloud.google.com/go/compute/metadata/metadata.go @@ -17,7 +17,7 @@ // // This package is a wrapper around the GCE metadata service, // as documented at https://developers.google.com/compute/docs/metadata. -package metadata +package metadata // import "cloud.google.com/go/compute/metadata" import ( "context" diff --git a/vendor/cloud.google.com/go/doc.go b/vendor/cloud.google.com/go/doc.go index f3293c094..237d84561 100644 --- a/vendor/cloud.google.com/go/doc.go +++ b/vendor/cloud.google.com/go/doc.go @@ -97,4 +97,4 @@ making breaking changes, including removal. These parts of the surface will be labeled with the note, "It is EXPERIMENTAL and subject to change or removal without notice." */ -package cloud +package cloud // import "cloud.google.com/go" diff --git a/vendor/cloud.google.com/go/internal/version/update_version.sh b/vendor/cloud.google.com/go/internal/version/update_version.sh old mode 100755 new mode 100644 diff --git a/vendor/cloud.google.com/go/storage/CHANGES.md b/vendor/cloud.google.com/go/storage/CHANGES.md index 6b570f785..952fff68e 100644 --- a/vendor/cloud.google.com/go/storage/CHANGES.md +++ b/vendor/cloud.google.com/go/storage/CHANGES.md @@ -1,49 +1,6 @@ # Changes -## v1.5.0 - -- Honor WithEndpoint client option for reads as well as writes. -- Add archive storage class to docs. -- Make fixes to storage benchwrapper. - -## v1.4.0 - -- When listing objects in a bucket, allow callers to specify which attributes - are queried. This allows for performance optimization. - -## v1.3.0 - -- Use `storage.googleapis.com/storage/v1` by default for GCS requests - instead of `www.googleapis.com/storage/v1`. - -## v1.2.1 - -- Fixed a bug where UniformBucketLevelAccess and BucketPolicyOnly were not - being sent in all cases. - -## v1.2.0 - -- Add support for UniformBucketLevelAccess. This configures access checks - to use only bucket-level IAM policies. - See: https://godoc.org/cloud.google.com/go/storage#UniformBucketLevelAccess. -- Fix userAgent to use correct version. - -## v1.1.2 - -- Fix memory leak in BucketIterator and ObjectIterator. - -## v1.1.1 - -- Send BucketPolicyOnly even when it's disabled. - -## v1.1.0 - -- Performance improvements for ObjectIterator and BucketIterator. -- Fix Bucket.ObjectIterator size calculation checks. -- Added HMACKeyOptions to all the methods which allows for options such as - UserProject to be set per invocation and optionally be used. - ## v1.0.0 This is the first tag to carve out storage as its own module. See: -https://github.com/golang/go/wiki/Modules#is-it-possible-to-add-a-module-to-a-multi-module-repository. +https://github.com/golang/go/wiki/Modules#is-it-possible-to-add-a-module-to-a-multi-module-repository. \ No newline at end of file diff --git a/vendor/cloud.google.com/go/storage/LICENSE b/vendor/cloud.google.com/go/storage/LICENSE new file mode 100644 index 000000000..d64569567 --- /dev/null +++ b/vendor/cloud.google.com/go/storage/LICENSE @@ -0,0 +1,202 @@ + + Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + + TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + + 1. 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In no event and under no legal theory, + whether in tort (including negligence), contract, or otherwise, + unless required by applicable law (such as deliberate and grossly + negligent acts) or agreed to in writing, shall any Contributor be + liable to You for damages, including any direct, indirect, special, + incidental, or consequential damages of any character arising as a + result of this License or out of the use or inability to use the + Work (including but not limited to damages for loss of goodwill, + work stoppage, computer failure or malfunction, or any and all + other commercial damages or losses), even if such Contributor + has been advised of the possibility of such damages. + + 9. Accepting Warranty or Additional Liability. While redistributing + the Work or Derivative Works thereof, You may choose to offer, + and charge a fee for, acceptance of support, warranty, indemnity, + or other liability obligations and/or rights consistent with this + License. However, in accepting such obligations, You may act only + on Your own behalf and on Your sole responsibility, not on behalf + of any other Contributor, and only if You agree to indemnify, + defend, and hold each Contributor harmless for any liability + incurred by, or claims asserted against, such Contributor by reason + of your accepting any such warranty or additional liability. + + END OF TERMS AND CONDITIONS + + APPENDIX: How to apply the Apache License to your work. + + To apply the Apache License to your work, attach the following + boilerplate notice, with the fields enclosed by brackets "[]" + replaced with your own identifying information. (Don't include + the brackets!) The text should be enclosed in the appropriate + comment syntax for the file format. We also recommend that a + file or class name and description of purpose be included on the + same "printed page" as the copyright notice for easier + identification within third-party archives. + + Copyright [yyyy] [name of copyright owner] + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. diff --git a/vendor/cloud.google.com/go/storage/bucket.go b/vendor/cloud.google.com/go/storage/bucket.go index dae11ff96..0ba45e8f8 100644 --- a/vendor/cloud.google.com/go/storage/bucket.go +++ b/vendor/cloud.google.com/go/storage/bucket.go @@ -232,18 +232,10 @@ type BucketAttrs struct { // ACL is the list of access control rules on the bucket. ACL []ACLRule - // BucketPolicyOnly is an alias for UniformBucketLevelAccess. Use of - // UniformBucketLevelAccess is recommended above the use of this field. - // Setting BucketPolicyOnly.Enabled OR UniformBucketLevelAccess.Enabled to - // true, will enable UniformBucketLevelAccess. + // BucketPolicyOnly configures access checks to use only bucket-level IAM + // policies. BucketPolicyOnly BucketPolicyOnly - // UniformBucketLevelAccess configures access checks to use only bucket-level IAM - // policies and ignore any ACL rules for the bucket. - // See https://cloud.google.com/storage/docs/uniform-bucket-level-access - // for more information. - UniformBucketLevelAccess UniformBucketLevelAccess - // DefaultObjectACL is the list of access controls to // apply to new objects when no object ACL is provided. DefaultObjectACL []ACLRule @@ -275,10 +267,8 @@ type BucketAttrs struct { // StorageClass is the default storage class of the bucket. This defines // how objects in the bucket are stored and determines the SLA - // and the cost of storage. Typical values are "STANDARD", "NEARLINE", - // "COLDLINE" and "ARCHIVE". Defaults to "STANDARD". - // See https://cloud.google.com/storage/docs/storage-classes for all - // valid values. + // and the cost of storage. Typical values are "NEARLINE", "COLDLINE" and + // "STANDARD". Defaults to "STANDARD". StorageClass string // Created is the creation time of the bucket. @@ -331,20 +321,9 @@ type BucketAttrs struct { LocationType string } -// BucketPolicyOnly is an alias for UniformBucketLevelAccess. -// Use of UniformBucketLevelAccess is preferred above BucketPolicyOnly. -type BucketPolicyOnly struct { - // Enabled specifies whether access checks use only bucket-level IAM - // policies. Enabled may be disabled until the locked time. - Enabled bool - // LockedTime specifies the deadline for changing Enabled from true to - // false. - LockedTime time.Time -} - -// UniformBucketLevelAccess configures access checks to use only bucket-level IAM +// BucketPolicyOnly configures access checks to use only bucket-level IAM // policies. -type UniformBucketLevelAccess struct { +type BucketPolicyOnly struct { // Enabled specifies whether access checks use only bucket-level IAM // policies. Enabled may be disabled until the locked time. Enabled bool @@ -461,7 +440,7 @@ type LifecycleCondition struct { // MatchesStorageClasses is the condition matching the object's storage // class. // - // Values include "STANDARD", "NEARLINE", "COLDLINE" and "ARCHIVE". + // Values include "NEARLINE", "COLDLINE" and "STANDARD". MatchesStorageClasses []string // NumNewerVersions is the condition matching objects with a number of newer versions. @@ -509,27 +488,26 @@ func newBucket(b *raw.Bucket) (*BucketAttrs, error) { return nil, err } return &BucketAttrs{ - Name: b.Name, - Location: b.Location, - MetaGeneration: b.Metageneration, - DefaultEventBasedHold: b.DefaultEventBasedHold, - StorageClass: b.StorageClass, - Created: convertTime(b.TimeCreated), - VersioningEnabled: b.Versioning != nil && b.Versioning.Enabled, - ACL: toBucketACLRules(b.Acl), - DefaultObjectACL: toObjectACLRules(b.DefaultObjectAcl), - Labels: b.Labels, - RequesterPays: b.Billing != nil && b.Billing.RequesterPays, - Lifecycle: toLifecycle(b.Lifecycle), - RetentionPolicy: rp, - CORS: toCORS(b.Cors), - Encryption: toBucketEncryption(b.Encryption), - Logging: toBucketLogging(b.Logging), - Website: toBucketWebsite(b.Website), - BucketPolicyOnly: toBucketPolicyOnly(b.IamConfiguration), - UniformBucketLevelAccess: toUniformBucketLevelAccess(b.IamConfiguration), - Etag: b.Etag, - LocationType: b.LocationType, + Name: b.Name, + Location: b.Location, + MetaGeneration: b.Metageneration, + DefaultEventBasedHold: b.DefaultEventBasedHold, + StorageClass: b.StorageClass, + Created: convertTime(b.TimeCreated), + VersioningEnabled: b.Versioning != nil && b.Versioning.Enabled, + ACL: toBucketACLRules(b.Acl), + DefaultObjectACL: toObjectACLRules(b.DefaultObjectAcl), + Labels: b.Labels, + RequesterPays: b.Billing != nil && b.Billing.RequesterPays, + Lifecycle: toLifecycle(b.Lifecycle), + RetentionPolicy: rp, + CORS: toCORS(b.Cors), + Encryption: toBucketEncryption(b.Encryption), + Logging: toBucketLogging(b.Logging), + Website: toBucketWebsite(b.Website), + BucketPolicyOnly: toBucketPolicyOnly(b.IamConfiguration), + Etag: b.Etag, + LocationType: b.LocationType, }, nil } @@ -555,9 +533,9 @@ func (b *BucketAttrs) toRawBucket() *raw.Bucket { bb = &raw.BucketBilling{RequesterPays: true} } var bktIAM *raw.BucketIamConfiguration - if b.UniformBucketLevelAccess.Enabled || b.BucketPolicyOnly.Enabled { + if b.BucketPolicyOnly.Enabled { bktIAM = &raw.BucketIamConfiguration{ - UniformBucketLevelAccess: &raw.BucketIamConfigurationUniformBucketLevelAccess{ + BucketPolicyOnly: &raw.BucketIamConfigurationBucketPolicyOnly{ Enabled: true, }, } @@ -624,20 +602,10 @@ type BucketAttrsToUpdate struct { // newly created objects in this bucket. DefaultEventBasedHold optional.Bool - // BucketPolicyOnly is an alias for UniformBucketLevelAccess. Use of - // UniformBucketLevelAccess is recommended above the use of this field. - // Setting BucketPolicyOnly.Enabled OR UniformBucketLevelAccess.Enabled to - // true, will enable UniformBucketLevelAccess. If both BucketPolicyOnly and - // UniformBucketLevelAccess are set, the value of UniformBucketLevelAccess - // will take precedence. + // BucketPolicyOnly configures access checks to use only bucket-level IAM + // policies. BucketPolicyOnly *BucketPolicyOnly - // UniformBucketLevelAccess configures access checks to use only bucket-level IAM - // policies and ignore any ACL rules for the bucket. - // See https://cloud.google.com/storage/docs/uniform-bucket-level-access - // for more information. - UniformBucketLevelAccess *UniformBucketLevelAccess - // If set, updates the retention policy of the bucket. Using // RetentionPolicy.RetentionPeriod = 0 will delete the existing policy. // @@ -726,17 +694,8 @@ func (ua *BucketAttrsToUpdate) toRawBucket() *raw.Bucket { } if ua.BucketPolicyOnly != nil { rb.IamConfiguration = &raw.BucketIamConfiguration{ - UniformBucketLevelAccess: &raw.BucketIamConfigurationUniformBucketLevelAccess{ - Enabled: ua.BucketPolicyOnly.Enabled, - ForceSendFields: []string{"Enabled"}, - }, - } - } - if ua.UniformBucketLevelAccess != nil { - rb.IamConfiguration = &raw.BucketIamConfiguration{ - UniformBucketLevelAccess: &raw.BucketIamConfigurationUniformBucketLevelAccess{ - Enabled: ua.UniformBucketLevelAccess.Enabled, - ForceSendFields: []string{"Enabled"}, + BucketPolicyOnly: &raw.BucketIamConfigurationBucketPolicyOnly{ + Enabled: ua.BucketPolicyOnly.Enabled, }, } } @@ -1075,26 +1034,8 @@ func toBucketPolicyOnly(b *raw.BucketIamConfiguration) BucketPolicyOnly { } } -func toUniformBucketLevelAccess(b *raw.BucketIamConfiguration) UniformBucketLevelAccess { - if b == nil || b.UniformBucketLevelAccess == nil || !b.UniformBucketLevelAccess.Enabled { - return UniformBucketLevelAccess{} - } - lt, err := time.Parse(time.RFC3339, b.UniformBucketLevelAccess.LockedTime) - if err != nil { - return UniformBucketLevelAccess{ - Enabled: true, - } - } - return UniformBucketLevelAccess{ - Enabled: true, - LockedTime: lt, - } -} - // Objects returns an iterator over the objects in the bucket that match the Query q. // If q is nil, no filtering is done. -// -// Note: The returned iterator is not safe for concurrent operations without explicit synchronization. func (b *BucketHandle) Objects(ctx context.Context, q *Query) *ObjectIterator { it := &ObjectIterator{ ctx: ctx, @@ -1111,8 +1052,6 @@ func (b *BucketHandle) Objects(ctx context.Context, q *Query) *ObjectIterator { } // An ObjectIterator is an iterator over ObjectAttrs. -// -// Note: This iterator is not safe for concurrent operations without explicit synchronization. type ObjectIterator struct { ctx context.Context bucket *BucketHandle @@ -1123,8 +1062,6 @@ type ObjectIterator struct { } // PageInfo supports pagination. See the google.golang.org/api/iterator package for details. -// -// Note: This method is not safe for concurrent operations without explicit synchronization. func (it *ObjectIterator) PageInfo() *iterator.PageInfo { return it.pageInfo } // Next returns the next result. Its second return value is iterator.Done if @@ -1134,8 +1071,6 @@ func (it *ObjectIterator) PageInfo() *iterator.PageInfo { return it.pageInfo } // If Query.Delimiter is non-empty, some of the ObjectAttrs returned by Next will // have a non-empty Prefix field, and a zero value for all other fields. These // represent prefixes. -// -// Note: This method is not safe for concurrent operations without explicit synchronization. func (it *ObjectIterator) Next() (*ObjectAttrs, error) { if err := it.nextFunc(); err != nil { return nil, err @@ -1152,9 +1087,6 @@ func (it *ObjectIterator) fetch(pageSize int, pageToken string) (string, error) req.Delimiter(it.query.Delimiter) req.Prefix(it.query.Prefix) req.Versions(it.query.Versions) - if len(it.query.fieldSelection) > 0 { - req.Fields("nextPageToken", googleapi.Field(it.query.fieldSelection)) - } req.PageToken(pageToken) if it.bucket.userProject != "" { req.UserProject(it.bucket.userProject) @@ -1187,8 +1119,6 @@ func (it *ObjectIterator) fetch(pageSize int, pageToken string) (string, error) // optionally set the iterator's Prefix field to restrict the list to buckets // whose names begin with the prefix. By default, all buckets in the project // are returned. -// -// Note: The returned iterator is not safe for concurrent operations without explicit synchronization. func (c *Client) Buckets(ctx context.Context, projectID string) *BucketIterator { it := &BucketIterator{ ctx: ctx, @@ -1199,13 +1129,10 @@ func (c *Client) Buckets(ctx context.Context, projectID string) *BucketIterator it.fetch, func() int { return len(it.buckets) }, func() interface{} { b := it.buckets; it.buckets = nil; return b }) - return it } // A BucketIterator is an iterator over BucketAttrs. -// -// Note: This iterator is not safe for concurrent operations without explicit synchronization. type BucketIterator struct { // Prefix restricts the iterator to buckets whose names begin with it. Prefix string @@ -1221,8 +1148,6 @@ type BucketIterator struct { // Next returns the next result. Its second return value is iterator.Done if // there are no more results. Once Next returns iterator.Done, all subsequent // calls will return iterator.Done. -// -// Note: This method is not safe for concurrent operations without explicit synchronization. func (it *BucketIterator) Next() (*BucketAttrs, error) { if err := it.nextFunc(); err != nil { return nil, err @@ -1233,8 +1158,6 @@ func (it *BucketIterator) Next() (*BucketAttrs, error) { } // PageInfo supports pagination. See the google.golang.org/api/iterator package for details. -// -// Note: This method is not safe for concurrent operations without explicit synchronization. func (it *BucketIterator) PageInfo() *iterator.PageInfo { return it.pageInfo } func (it *BucketIterator) fetch(pageSize int, pageToken string) (token string, err error) { diff --git a/vendor/cloud.google.com/go/storage/doc.go b/vendor/cloud.google.com/go/storage/doc.go index d33454ff6..88f645904 100644 --- a/vendor/cloud.google.com/go/storage/doc.go +++ b/vendor/cloud.google.com/go/storage/doc.go @@ -117,33 +117,6 @@ Objects also have attributes, which you can fetch with Attrs: fmt.Printf("object %s has size %d and can be read using %s\n", objAttrs.Name, objAttrs.Size, objAttrs.MediaLink) -Listing objects - -Listing objects in a bucket is done with the Bucket.Objects method: - - query := &storage.Query{Prefix: ""} - - var names []string - it := bkt.Objects(ctx, query) - for { - attrs, err := it.Next() - if err == iterator.Done { - break - } - if err != nil { - log.Fatal(err) - } - names = append(names, attrs.Name) - } - -If only a subset of object attributes is needed when listing, specifying this -subset using Query.SetAttrSelection may speed up the listing process: - - query := &storage.Query{Prefix: ""} - query.SetAttrSelection([]string{"Name"}) - - // ... as before - ACLs Both objects and buckets have ACLs (Access Control Lists). An ACL is a list of @@ -200,4 +173,4 @@ These errors can be introspected for more information by type asserting to the r if e.Code == 409 { ... } } */ -package storage +package storage // import "cloud.google.com/go/storage" diff --git a/vendor/cloud.google.com/go/storage/go.mod b/vendor/cloud.google.com/go/storage/go.mod index a82500e92..ce68c9daa 100644 --- a/vendor/cloud.google.com/go/storage/go.mod +++ b/vendor/cloud.google.com/go/storage/go.mod @@ -1,17 +1,14 @@ module cloud.google.com/go/storage -go 1.11 +go 1.9 require ( - cloud.google.com/go v0.52.0 - cloud.google.com/go/bigquery v1.4.0 // indirect + cloud.google.com/go v0.46.3 github.com/golang/protobuf v1.3.2 - github.com/google/go-cmp v0.4.0 + github.com/google/go-cmp v0.3.0 github.com/googleapis/gax-go/v2 v2.0.5 - golang.org/x/oauth2 v0.0.0-20200107190931-bf48bf16ab8d - golang.org/x/sys v0.0.0-20200124204421-9fbb57f87de9 // indirect - golang.org/x/tools v0.0.0-20200128002243-345141a36859 // indirect - google.golang.org/api v0.15.0 - google.golang.org/genproto v0.0.0-20200128133413-58ce757ed39b - google.golang.org/grpc v1.26.0 + golang.org/x/oauth2 v0.0.0-20190604053449-0f29369cfe45 + google.golang.org/api v0.9.0 + google.golang.org/genproto v0.0.0-20190911173649-1774047e7e51 + google.golang.org/grpc v1.21.1 ) diff --git a/vendor/cloud.google.com/go/storage/go.sum b/vendor/cloud.google.com/go/storage/go.sum index 6fc00554c..96d9ee7c0 100644 --- a/vendor/cloud.google.com/go/storage/go.sum +++ b/vendor/cloud.google.com/go/storage/go.sum @@ -4,46 +4,20 @@ cloud.google.com/go v0.38.0/go.mod h1:990N+gfupTy94rShfmMCWGDn0LpTmnzTp2qbd1dvSR cloud.google.com/go v0.44.1/go.mod h1:iSa0KzasP4Uvy3f1mN/7PiObzGgflwredwwASm/v6AU= cloud.google.com/go v0.44.2/go.mod h1:60680Gw3Yr4ikxnPRS/oxxkBccT6SA1yMk63TGekxKY= cloud.google.com/go v0.45.1/go.mod h1:RpBamKRgapWJb87xiFSdk4g1CME7QZg3uwTez+TSTjc= -cloud.google.com/go v0.46.3 h1:AVXDdKsrtX33oR9fbCMu/+c1o8Ofjq6Ku/MInaLVg5Y= -cloud.google.com/go v0.46.3/go.mod h1:a6bKKbmY7er1mI7TEI4lsAkts/mkhTSZK8w33B4RAg0= -cloud.google.com/go v0.50.0/go.mod h1:r9sluTvynVuxRIOHXQEHMFffphuXHOMZMycpNR5e6To= -cloud.google.com/go v0.52.0 h1:GGslhk/BU052LPlnI1vpp3fcbUs+hQ3E+Doti/3/vF8= -cloud.google.com/go v0.52.0/go.mod h1:pXajvRH/6o3+F9jDHZWQ5PbGhn+o8w9qiu/CffaVdO4= +cloud.google.com/go v0.46.1/go.mod h1:a6bKKbmY7er1mI7TEI4lsAkts/mkhTSZK8w33B4RAg0= cloud.google.com/go/bigquery v1.0.1 h1:hL+ycaJpVE9M7nLoiXb/Pn10ENE2u+oddxbD8uu0ZVU= cloud.google.com/go/bigquery v1.0.1/go.mod h1:i/xbL2UlR5RvWAURpBYZTtm/cXjCha9lbfbpx4poX+o= -cloud.google.com/go/bigquery v1.3.0 h1:sAbMqjY1PEQKZBWfbu6Y6bsupJ9c4QdHnzg/VvYTLcE= -cloud.google.com/go/bigquery v1.3.0/go.mod h1:PjpwJnslEMmckchkHFfq+HTD2DmtT67aNFKH1/VBDHE= -cloud.google.com/go/bigquery v1.4.0 h1:xE3CPsOgttP4ACBePh79zTKALtXwn/Edhcr16R5hMWU= -cloud.google.com/go/bigquery v1.4.0/go.mod h1:S8dzgnTigyfTmLBfrtrhyYhwRxG72rYxvftPBK2Dvzc= cloud.google.com/go/datastore v1.0.0 h1:Kt+gOPPp2LEPWp8CSfxhsM8ik9CcyE/gYu+0r+RnZvM= cloud.google.com/go/datastore v1.0.0/go.mod h1:LXYbyblFSglQ5pkeyhO+Qmw7ukd3C+pD7TKLgZqpHYE= +cloud.google.com/go/firestore v1.0.0/go.mod h1:SdFEKccng5n2jTXm5x01uXEvi4MBzxWFR6YI781XSJI= cloud.google.com/go/pubsub v1.0.1 h1:W9tAK3E57P75u0XLLR82LZyw8VpAnhmyTOxW9qzmyj8= cloud.google.com/go/pubsub v1.0.1/go.mod h1:R0Gpsv3s54REJCy4fxDixWD93lHJMoZTyQ2kNxGRt3I= -cloud.google.com/go/pubsub v1.1.0 h1:9/vpR43S4aJaROxqQHQ3nH9lfyKKV0dC3vOmnw8ebQQ= -cloud.google.com/go/pubsub v1.1.0/go.mod h1:EwwdRX2sKPjnvnqCa270oGRyludottCI76h+R3AArQw= -cloud.google.com/go/storage v1.0.0/go.mod h1:IhtSnM/ZTZV8YYJWCY8RULGVqBDmpoyjwiyrjsg+URw= -cloud.google.com/go/storage v1.5.0/go.mod h1:tpKbwo567HUNpVclU5sGELwQWBDZ8gh0ZeosJ0Rtdos= -dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9/go.mod h1:H6x//7gZCb22OMCxBHrMx7a5I7Hp++hsVxbQ4BYO7hU= github.com/BurntSushi/toml v0.3.1 h1:WXkYYl6Yr3qBf1K79EBnL4mak0OimBfB0XUf9Vl28OQ= github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU= github.com/BurntSushi/xgb v0.0.0-20160522181843-27f122750802/go.mod h1:IVnqGOEym/WlBOVXweHU+Q+/VP0lqqI8lqeDx9IjBqo= -github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU= -github.com/chzyer/logex v1.1.10/go.mod h1:+Ywpsq7O8HXn0nuIou7OrIPyXbp3wmkHB+jjWRnGsAI= -github.com/chzyer/readline v0.0.0-20180603132655-2972be24d48e/go.mod h1:nSuG5e5PlCu98SY8svDHJxuZscDgtXS6KTTbou5AhLI= -github.com/chzyer/test v0.0.0-20180213035817-a1ea475d72b1/go.mod h1:Q3SI9o4m/ZMnBNeIyt5eFwwo7qiLfzFZmjNmxjkiQlU= github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw= -github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= -github.com/envoyproxy/go-control-plane v0.9.1-0.20191026205805-5f8ba28d4473/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4= -github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7+kN2VEUnK/pcBlmesArF7c= -github.com/go-gl/glfw v0.0.0-20190409004039-e6da0acd62b1/go.mod h1:vR7hzQXu2zJy9AVAgeJqvqgH9Q5CA+iKCZ2gyEVpxRU= -github.com/go-gl/glfw/v3.3/glfw v0.0.0-20191125211704-12ad95a8df72/go.mod h1:tQ2UAYgL5IevRw8kRxooKSPJfGvJ9fJQFa0TUsXzTg8= github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b h1:VKtxabqXZkF25pY9ekfRL6a582T4P37/31XEstQ5p58= github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q= -github.com/golang/groupcache v0.0.0-20190702054246-869f871628b6/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc= -github.com/golang/groupcache v0.0.0-20191227052852-215e87163ea7 h1:5ZkaAPbicIKTF2I64qf5Fh8Aa83Q/dnOafMYV0OMwjA= -github.com/golang/groupcache v0.0.0-20191227052852-215e87163ea7/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc= -github.com/golang/groupcache v0.0.0-20200121045136-8c9f03a8e57e h1:1r7pUrabqp18hOBcwBwiTsbnFeTZHV9eER/QT5JVZxY= -github.com/golang/groupcache v0.0.0-20200121045136-8c9f03a8e57e/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc= github.com/golang/mock v1.1.1/go.mod h1:oTYuIxOrZwtPieC+H1uAHpcLFnEyAGVDL/k47Jfbm0A= github.com/golang/mock v1.2.0/go.mod h1:oTYuIxOrZwtPieC+H1uAHpcLFnEyAGVDL/k47Jfbm0A= github.com/golang/mock v1.3.1/go.mod h1:sBzyDLLjw3U8JLTeZvSv8jJB+tU5PVekmnlKIyFUx0Y= @@ -56,14 +30,10 @@ github.com/google/btree v1.0.0/go.mod h1:lNA+9X1NB3Zf8V7Ke586lFgjr2dZNuvo3lPJSGZ github.com/google/go-cmp v0.2.0/go.mod h1:oXzfMopK8JAjlY9xF4vHSVASa0yLyX7SntLO5aqRK0M= github.com/google/go-cmp v0.3.0 h1:crn/baboCvb5fXaQ0IJ1SGTsTVrWpDsCWC8EGETZijY= github.com/google/go-cmp v0.3.0/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU= -github.com/google/go-cmp v0.3.1/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU= -github.com/google/go-cmp v0.4.0 h1:xsAVV57WRhGj6kEIi8ReJzQlHHqcBYCElAvkovg3B/4= -github.com/google/go-cmp v0.4.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE= github.com/google/martian v2.1.0+incompatible h1:/CP5g8u/VJHijgedC/Legn3BAbAaWPgecwXBIDzw5no= github.com/google/martian v2.1.0+incompatible/go.mod h1:9I4somxYTbIHy5NJKHRl3wXiIaQGbYVAs8BPL6v8lEs= github.com/google/pprof v0.0.0-20181206194817-3ea8567a2e57/go.mod h1:zfwlbNMJ+OItoe0UupaVj+oy1omPYYDuagoSzA8v9mc= github.com/google/pprof v0.0.0-20190515194954-54271f7e092f/go.mod h1:zfwlbNMJ+OItoe0UupaVj+oy1omPYYDuagoSzA8v9mc= -github.com/google/pprof v0.0.0-20191218002539-d4f498aebedc/go.mod h1:ZgVRPoUq/hfqzAqh7sHMqb3I9Rq5C59dIz2SbBwJ4eM= github.com/google/renameio v0.1.0/go.mod h1:KWCgfxg9yswjAJkECMjeO8J8rahYeXnNhOm40UhjYkI= github.com/googleapis/gax-go/v2 v2.0.4/go.mod h1:0Wqv26UfaUD9n4G6kQubkQ+KchISgw+vpHVxEJEs9eg= github.com/googleapis/gax-go/v2 v2.0.5 h1:sjZBwGj9Jlw33ImPtvFviGYvseOtDM7hkSKB7+Tv3SM= @@ -71,40 +41,24 @@ github.com/googleapis/gax-go/v2 v2.0.5/go.mod h1:DWXyrwAJ9X0FpwwEdw+IPEYBICEFu5m github.com/hashicorp/golang-lru v0.5.0/go.mod h1:/m3WP610KZHVQ1SGc6re/UDhFvYD7pJ4Ao+sR/qLZy8= github.com/hashicorp/golang-lru v0.5.1 h1:0hERBMJE1eitiLkihrMvRVBYAkpHzc/J3QdDN+dAcgU= github.com/hashicorp/golang-lru v0.5.1/go.mod h1:/m3WP610KZHVQ1SGc6re/UDhFvYD7pJ4Ao+sR/qLZy8= -github.com/ianlancetaylor/demangle v0.0.0-20181102032728-5e5cf60278f6/go.mod h1:aSSvb/t6k1mPoxDqO4vJh6VOCGPwU4O0C2/Eqndh1Sc= github.com/jstemmer/go-junit-report v0.0.0-20190106144839-af01ea7f8024 h1:rBMNdlhTLzJjJSDIjNEXX1Pz3Hmwmz91v+zycvx9PJc= github.com/jstemmer/go-junit-report v0.0.0-20190106144839-af01ea7f8024/go.mod h1:6v2b51hI/fHJwM22ozAgKL4VKDeJcHhJFhtBdhmNjmU= -github.com/jstemmer/go-junit-report v0.9.1 h1:6QPYqodiu3GuPL+7mfx+NwDdp2eTkp9IfEUpgAwUN0o= -github.com/jstemmer/go-junit-report v0.9.1/go.mod h1:Brl9GWCQeLvo8nXZwPNNblvFj/XSXhF0NWZEnDohbsk= github.com/kisielk/gotool v1.0.0/go.mod h1:XhKaO+MFFWcvkIS/tQcRk01m1F5IRFswLeQ+oQHNcck= github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo= github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ= github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI= -github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4= -github.com/prometheus/client_model v0.0.0-20190812154241-14fe0d1b01d4/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA= github.com/rogpeppe/go-internal v1.3.0/go.mod h1:M8bDsm7K2OlrFYOpmOWEs/qY81heoFRclV5y23lUDJ4= -github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME= -github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4= go.opencensus.io v0.21.0/go.mod h1:mSImk1erAIZhrmZN+AvHh14ztQfjbGwt4TtuofqLduU= go.opencensus.io v0.22.0 h1:C9hSCOW830chIVkdja34wa6Ky+IzWllkUinR+BtRZd4= go.opencensus.io v0.22.0/go.mod h1:+kGneAE2xo2IficOXnaByMWTGM9T73dGwxeWcUqIpI8= -go.opencensus.io v0.22.2 h1:75k/FF0Q2YM8QYo07VPddOLBslDt1MZOdEslOHvmzAs= -go.opencensus.io v0.22.2/go.mod h1:yxeiOL68Rb0Xd1ddK5vPZ/oVn4vY4Ynel7k9FzqtOIw= golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w= golang.org/x/crypto v0.0.0-20190510104115-cbcb75029529/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI= golang.org/x/crypto v0.0.0-20190605123033-f99c8df09eb5/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI= -golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI= golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA= golang.org/x/exp v0.0.0-20190306152737-a1d7652674e8/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA= golang.org/x/exp v0.0.0-20190510132918-efd6b22b2522/go.mod h1:ZjyILWgesfNpC6sMxTJOJm9Kp84zZh5NQWvqDGG3Qr8= golang.org/x/exp v0.0.0-20190829153037-c13cbed26979 h1:Agxu5KLo8o7Bb634SVDnhIfpTvxmzUwhbYAzBvXt6h4= golang.org/x/exp v0.0.0-20190829153037-c13cbed26979/go.mod h1:86+5VVa7VpoJ4kLfm080zCjGlMRFzhUhsZKEZO7MGek= -golang.org/x/exp v0.0.0-20191030013958-a1ab85dbe136/go.mod h1:JXzH8nQsPlswgeRAPE3MuO9GYsAcnJvJ4vnMwN/5qkY= -golang.org/x/exp v0.0.0-20191129062945-2f5052295587/go.mod h1:2RIsYlXP63K8oxa1u096TMicItID8zy7Y6sNkU49FU4= -golang.org/x/exp v0.0.0-20191227195350-da58074b4299 h1:zQpM52jfKHG6II1ISZY1ZcpygvuSFZpLwfluuF89XOg= -golang.org/x/exp v0.0.0-20191227195350-da58074b4299/go.mod h1:2RIsYlXP63K8oxa1u096TMicItID8zy7Y6sNkU49FU4= -golang.org/x/exp v0.0.0-20200119233911-0405dc783f0a h1:7Wlg8L54In96HTWOaI4sreLJ6qfyGuvSau5el3fK41Y= -golang.org/x/exp v0.0.0-20200119233911-0405dc783f0a/go.mod h1:2RIsYlXP63K8oxa1u096TMicItID8zy7Y6sNkU49FU4= golang.org/x/image v0.0.0-20190227222117-0694c2d4d067/go.mod h1:kZ7UVZpmo3dzQBMxlp+ypCbDeSB+sBbTgSJuh5dn5js= golang.org/x/image v0.0.0-20190802002840-cff245a6509b/go.mod h1:FeLwcggjj3mMvU+oOTbSwawSJRM1uh48EjtB4UJZlP0= golang.org/x/lint v0.0.0-20181026193005-c67002cb31c3/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE= @@ -114,14 +68,10 @@ golang.org/x/lint v0.0.0-20190313153728-d0100b6bd8b3/go.mod h1:6SW0HCj/g11FgYtHl golang.org/x/lint v0.0.0-20190409202823-959b441ac422/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc= golang.org/x/lint v0.0.0-20190909230951-414d861bb4ac h1:8R1esu+8QioDxo4E4mX6bFztO+dMTM49DNAaWfO5OeY= golang.org/x/lint v0.0.0-20190909230951-414d861bb4ac/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc= -golang.org/x/lint v0.0.0-20190930215403-16217165b5de/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc= -golang.org/x/lint v0.0.0-20191125180803-fdd1cda4f05f h1:J5lckAjkw6qYlOZNj90mLYNTEKDvWeuc1yieZ8qUzUE= -golang.org/x/lint v0.0.0-20191125180803-fdd1cda4f05f/go.mod h1:5qLYkcX4OjUUV8bRuDixDT3tpyyb+LUpUlRWLxfhWrs= golang.org/x/mobile v0.0.0-20190312151609-d3739f865fa6/go.mod h1:z+o9i4GpDbdi3rU15maQ/Ox0txvL9dWGYEHz965HBQE= golang.org/x/mobile v0.0.0-20190719004257-d2bd2a29d028/go.mod h1:E/iHnbuqvinMTCcRqshq8CkpyQDoeVncDDYHnLhea+o= golang.org/x/mod v0.0.0-20190513183733-4bf6d317e70e/go.mod h1:mXi4GBBbnImb6dmsKGUJ2LatrhH/nqhxcFungHvyanc= golang.org/x/mod v0.1.0/go.mod h1:0QHyrYULN0/3qlju5TqG8bIK38QM8yzMo5ekMj3DlcY= -golang.org/x/mod v0.1.1-0.20191105210325-c90efee705ee/go.mod h1:QqPTAvyqsEbceGzBzNggFXnrqF1CaUcvgkdR5Ot7KZg= golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4= golang.org/x/net v0.0.0-20180826012351-8a410e7b638d/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4= golang.org/x/net v0.0.0-20190108225652-1e06a53dbb7e/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4= @@ -133,25 +83,16 @@ golang.org/x/net v0.0.0-20190503192946-f4e77d36d62c/go.mod h1:t9HGtf8HONx5eT2rtn golang.org/x/net v0.0.0-20190603091049-60506f45cf65/go.mod h1:HSz+uSET+XFnRR8LxR5pz3Of3rY3CfYBVs4xY44aLks= golang.org/x/net v0.0.0-20190620200207-3b0461eec859 h1:R/3boaszxrf1GEUWTVDzSKVwLmSJpwZ1yqXm8j0v2QI= golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s= -golang.org/x/net v0.0.0-20190724013045-ca1201d0de80/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s= -golang.org/x/net v0.0.0-20191209160850-c0dbc17a3553/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s= -golang.org/x/net v0.0.0-20200114155413-6afb5195e5aa h1:F+8P+gmewFQYRk6JoLQLwjBCTu3mcIURZfNkVweuRKA= -golang.org/x/net v0.0.0-20200114155413-6afb5195e5aa/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s= golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U= golang.org/x/oauth2 v0.0.0-20190226205417-e64efc72b421/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw= golang.org/x/oauth2 v0.0.0-20190604053449-0f29369cfe45 h1:SVwTIAaPC2U/AvvLNZ2a7OVsmBpC8L5BlwK1whH3hm0= golang.org/x/oauth2 v0.0.0-20190604053449-0f29369cfe45/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw= -golang.org/x/oauth2 v0.0.0-20191202225959-858c2ad4c8b6/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw= -golang.org/x/oauth2 v0.0.0-20200107190931-bf48bf16ab8d h1:TzXSXBo42m9gQenoE3b9BGiEpg5IG2JkU5FkPIawgtw= -golang.org/x/oauth2 v0.0.0-20200107190931-bf48bf16ab8d/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw= golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= golang.org/x/sync v0.0.0-20181108010431-42b317875d0f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= golang.org/x/sync v0.0.0-20181221193216-37e7f081c4d4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= golang.org/x/sync v0.0.0-20190227155943-e225da77a7e6/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= golang.org/x/sync v0.0.0-20190423024810-112230192c58 h1:8gQV6CLnAEikrhgkHFbMAEhagSSnXWGV915qUMm9mrU= golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= -golang.org/x/sync v0.0.0-20190911185100-cd5d95a43a6e h1:vcxGaoTs7kV8m5Np9uUNQin4BrLOthgV7252N8V+FwY= -golang.org/x/sync v0.0.0-20190911185100-cd5d95a43a6e/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= golang.org/x/sys v0.0.0-20180830151530-49385e6e1522/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY= golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY= golang.org/x/sys v0.0.0-20190312061237-fead79001313/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= @@ -161,15 +102,6 @@ golang.org/x/sys v0.0.0-20190507160741-ecd444e8653b/go.mod h1:h1NjWce9XRLGQEsW7w golang.org/x/sys v0.0.0-20190606165138-5da285871e9c/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= golang.org/x/sys v0.0.0-20190624142023-c5567b49c5d0 h1:HyfiK1WMnHj5FXFXatD+Qs1A/xC2Run6RzeW1SyHxpc= golang.org/x/sys v0.0.0-20190624142023-c5567b49c5d0/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= -golang.org/x/sys v0.0.0-20190726091711-fc99dfbffb4e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= -golang.org/x/sys v0.0.0-20191204072324-ce4227a45e2e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= -golang.org/x/sys v0.0.0-20191228213918-04cbcbbfeed8/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= -golang.org/x/sys v0.0.0-20200113162924-86b910548bc1 h1:gZpLHxUX5BdYLA08Lj4YCJNN/jk7KtquiArPoeX0WvA= -golang.org/x/sys v0.0.0-20200113162924-86b910548bc1/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= -golang.org/x/sys v0.0.0-20200122134326-e047566fdf82 h1:ywK/j/KkyTHcdyYSZNXGjMwgmDSfjglYZ3vStQ/gSCU= -golang.org/x/sys v0.0.0-20200122134326-e047566fdf82/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= -golang.org/x/sys v0.0.0-20200124204421-9fbb57f87de9 h1:1/DFK4b7JH8DmkqhUk48onnSfrPzImPoVxuomtbT2nk= -golang.org/x/sys v0.0.0-20200124204421-9fbb57f87de9/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ= golang.org/x/text v0.3.1-0.20180807135948-17ff2d5776d2/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ= golang.org/x/text v0.3.2 h1:tW2bmiBqwgJj/UpqtC8EpXEZVYOwU0yG4iWbprSVAcs= @@ -184,45 +116,23 @@ golang.org/x/tools v0.0.0-20190312151545-0bb0c0a6e846/go.mod h1:LCzVGOaR6xXOjkQ3 golang.org/x/tools v0.0.0-20190312170243-e65039ee4138/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs= golang.org/x/tools v0.0.0-20190425150028-36563e24a262/go.mod h1:RgjU9mgBXZiqYHBnxXauZ1Gv1EHHAz9KjViQ78xBX0Q= golang.org/x/tools v0.0.0-20190506145303-2d16b83fe98c/go.mod h1:RgjU9mgBXZiqYHBnxXauZ1Gv1EHHAz9KjViQ78xBX0Q= -golang.org/x/tools v0.0.0-20190524140312-2c0ae7006135/go.mod h1:RgjU9mgBXZiqYHBnxXauZ1Gv1EHHAz9KjViQ78xBX0Q= golang.org/x/tools v0.0.0-20190606124116-d0a3d012864b/go.mod h1:/rFqwRUd4F7ZHNgwSSTFct+R/Kf4OFW1sUzUTQQTgfc= golang.org/x/tools v0.0.0-20190621195816-6e04913cbbac/go.mod h1:/rFqwRUd4F7ZHNgwSSTFct+R/Kf4OFW1sUzUTQQTgfc= golang.org/x/tools v0.0.0-20190628153133-6cdbf07be9d0/go.mod h1:/rFqwRUd4F7ZHNgwSSTFct+R/Kf4OFW1sUzUTQQTgfc= golang.org/x/tools v0.0.0-20190816200558-6889da9d5479/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo= golang.org/x/tools 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h1:8k5glujaEP+g9n7WNsDg8QP6cUVNI86fCNMcbazEtwE= google.golang.org/api v0.7.0/go.mod h1:WtwebWUNSVBH/HAw79HIFXZNqEvBhG+Ra+ax0hx3E3M= google.golang.org/api v0.8.0/go.mod h1:o4eAsZoiT+ibD93RtjEohWalFOjRDx6CVaqeizhEnKg= google.golang.org/api v0.9.0 h1:jbyannxz0XFD3zdjgrSUsaJbgpH4eTrkdhRChkHPfO8= google.golang.org/api v0.9.0/go.mod h1:o4eAsZoiT+ibD93RtjEohWalFOjRDx6CVaqeizhEnKg= -google.golang.org/api v0.13.0/go.mod h1:iLdEw5Ide6rF15KTC1Kkl0iskquN2gFfn9o9XIsbkAI= -google.golang.org/api v0.14.0/go.mod h1:iLdEw5Ide6rF15KTC1Kkl0iskquN2gFfn9o9XIsbkAI= -google.golang.org/api v0.15.0 h1:yzlyyDW/J0w8yNFJIhiAJy4kq74S+1DOLdawELNxFMA= -google.golang.org/api v0.15.0/go.mod h1:iLdEw5Ide6rF15KTC1Kkl0iskquN2gFfn9o9XIsbkAI= google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM= google.golang.org/appengine v1.4.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4= google.golang.org/appengine v1.5.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4= google.golang.org/appengine v1.6.1 h1:QzqyMA1tlu6CgqCDUtU9V+ZKhLFT2dkJuANu5QaxI3I= google.golang.org/appengine v1.6.1/go.mod h1:i06prIuMbXzDqacNJfV5OdTW448YApPu5ww/cMBSeb0= -google.golang.org/appengine v1.6.5 h1:tycE03LOZYQNhDpS27tcQdAzLCVMaj7QT2SXxebnpCM= -google.golang.org/appengine v1.6.5/go.mod h1:8WjMMxjGQR8xUklV/ARdw2HLXBOI7O7uCIDZVag1xfc= google.golang.org/genproto v0.0.0-20180817151627-c66870c02cf8/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc= google.golang.org/genproto v0.0.0-20190307195333-5fe7a883aa19/go.mod h1:VzzqZJRnGkLBvHegQrXjBqPurQTc5/KpmUdxsrq26oE= google.golang.org/genproto v0.0.0-20190418145605-e7d98fc518a7/go.mod h1:VzzqZJRnGkLBvHegQrXjBqPurQTc5/KpmUdxsrq26oE= @@ -232,31 +142,15 @@ google.golang.org/genproto v0.0.0-20190801165951-fa694d86fc64/go.mod h1:DMBHOl98 google.golang.org/genproto v0.0.0-20190819201941-24fa4b261c55/go.mod h1:DMBHOl98Agz4BDEuKkezgsaosCRResVns1a3J2ZsMNc= google.golang.org/genproto v0.0.0-20190911173649-1774047e7e51 h1:Ex1mq5jaJof+kRnYi3SlYJ8KKa9Ao3NHyIT5XJ1gF6U= google.golang.org/genproto v0.0.0-20190911173649-1774047e7e51/go.mod h1:IbNlFCBrqXvoKpeg0TB2l7cyZUmoaFKYIwrEpbDKLA8= -google.golang.org/genproto v0.0.0-20191108220845-16a3f7862a1a/go.mod h1:n3cpQtvxv34hfy77yVDNjmbRyujviMdxYliBSkLhpCc= -google.golang.org/genproto v0.0.0-20191115194625-c23dd37a84c9/go.mod h1:n3cpQtvxv34hfy77yVDNjmbRyujviMdxYliBSkLhpCc= -google.golang.org/genproto v0.0.0-20191216164720-4f79533eabd1/go.mod h1:n3cpQtvxv34hfy77yVDNjmbRyujviMdxYliBSkLhpCc= -google.golang.org/genproto v0.0.0-20191230161307-f3c370f40bfb/go.mod h1:n3cpQtvxv34hfy77yVDNjmbRyujviMdxYliBSkLhpCc= -google.golang.org/genproto v0.0.0-20200115191322-ca5a22157cba h1:pRj9OXZbwNtbtZtOB4dLwfK4u+EVRMvP+e9zKkg2grM= -google.golang.org/genproto v0.0.0-20200115191322-ca5a22157cba/go.mod h1:n3cpQtvxv34hfy77yVDNjmbRyujviMdxYliBSkLhpCc= -google.golang.org/genproto v0.0.0-20200122232147-0452cf42e150 h1:VPpdpQkGvFicX9yo4G5oxZPi9ALBnEOZblPSa/Wa2m4= -google.golang.org/genproto v0.0.0-20200122232147-0452cf42e150/go.mod h1:n3cpQtvxv34hfy77yVDNjmbRyujviMdxYliBSkLhpCc= -google.golang.org/genproto v0.0.0-20200128133413-58ce757ed39b h1:c8OBoXP3kTbDWWB/oVE3FkR851p4iZ3MPadz7zXEIPU= -google.golang.org/genproto v0.0.0-20200128133413-58ce757ed39b/go.mod h1:n3cpQtvxv34hfy77yVDNjmbRyujviMdxYliBSkLhpCc= google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c= google.golang.org/grpc v1.20.1/go.mod h1:10oTOabMzJvdu6/UiuZezV6QK5dSlG84ov/aaiqXj38= google.golang.org/grpc v1.21.1 h1:j6XxA85m/6txkUCHvzlV5f+HBNl/1r5cZ2A/3IEFOO8= google.golang.org/grpc v1.21.1/go.mod h1:oYelfM1adQP15Ek0mdvEgi9Df8B9CZIaU1084ijfRaM= -google.golang.org/grpc v1.23.0/go.mod h1:Y5yQAOtifL1yxbo5wqy6BxZv8vAUGQwXBOALyacEbxg= -google.golang.org/grpc v1.26.0 h1:2dTRdpdFEEhJYQD8EMLB61nnrzSCTbG38PhqdhvOltg= -google.golang.org/grpc v1.26.0/go.mod h1:qbnxyOmOxrQa7FizSgH+ReBfzJrCY1pSN7KXBS8abTk= -gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0= gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0= gopkg.in/errgo.v2 v2.1.0/go.mod h1:hNsd1EY+bozCKY1Ytp96fpM3vjJbqLJn88ws8XvfDNI= -gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4= honnef.co/go/tools v0.0.0-20190106161140-3f1c8253044a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4= honnef.co/go/tools v0.0.0-20190418001031-e561f6794a2a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4= -honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4= honnef.co/go/tools v0.0.1-2019.2.3 h1:3JgtbtFHMiCmsznwGVTUWbgGov+pVqnlf1dEJTNAXeM= honnef.co/go/tools v0.0.1-2019.2.3/go.mod h1:a3bituU0lyd329TUQxRnasdCoJDkEUEAqEt0JzvZhAg= rsc.io/binaryregexp v0.2.0/go.mod h1:qTv7/COck+e2FymRvadv62gMdZztPaShugOCi3I+8D8= diff --git a/vendor/cloud.google.com/go/storage/hmac.go b/vendor/cloud.google.com/go/storage/hmac.go index 7d8185f37..c39632740 100644 --- a/vendor/cloud.google.com/go/storage/hmac.go +++ b/vendor/cloud.google.com/go/storage/hmac.go @@ -25,8 +25,6 @@ import ( ) // HMACState is the state of the HMAC key. -// -// This type is EXPERIMENTAL and subject to change or removal without notice. type HMACState string const ( @@ -107,21 +105,9 @@ func (c *Client) HMACKeyHandle(projectID, accessID string) *HMACKeyHandle { // Get invokes an RPC to retrieve the HMAC key referenced by the // HMACKeyHandle's accessID. // -// Options such as UserProjectForHMACKeys can be used to set the -// userProject to be billed against for operations. -// // This method is EXPERIMENTAL and subject to change or removal without notice. -func (hkh *HMACKeyHandle) Get(ctx context.Context, opts ...HMACKeyOption) (*HMACKey, error) { +func (hkh *HMACKeyHandle) Get(ctx context.Context) (*HMACKey, error) { call := hkh.raw.Get(hkh.projectID, hkh.accessID) - - desc := new(hmacKeyDesc) - for _, opt := range opts { - opt.withHMACKeyDesc(desc) - } - if desc.userProjectID != "" { - call = call.UserProject(desc.userProjectID) - } - setClientHeader(call.Header()) var metadata *raw.HmacKeyMetadata @@ -145,15 +131,8 @@ func (hkh *HMACKeyHandle) Get(ctx context.Context, opts ...HMACKeyOption) (*HMAC // After deletion, a key cannot be used to authenticate requests. // // This method is EXPERIMENTAL and subject to change or removal without notice. -func (hkh *HMACKeyHandle) Delete(ctx context.Context, opts ...HMACKeyOption) error { +func (hkh *HMACKeyHandle) Delete(ctx context.Context) error { delCall := hkh.raw.Delete(hkh.projectID, hkh.accessID) - desc := new(hmacKeyDesc) - for _, opt := range opts { - opt.withHMACKeyDesc(desc) - } - if desc.userProjectID != "" { - delCall = delCall.UserProject(desc.userProjectID) - } setClientHeader(delCall.Header()) return runWithRetry(ctx, func() error { @@ -194,7 +173,7 @@ func pbHmacKeyToHMACKey(pb *raw.HmacKey, updatedTimeCanBeNil bool) (*HMACKey, er // CreateHMACKey invokes an RPC for Google Cloud Storage to create a new HMACKey. // // This method is EXPERIMENTAL and subject to change or removal without notice. -func (c *Client) CreateHMACKey(ctx context.Context, projectID, serviceAccountEmail string, opts ...HMACKeyOption) (*HMACKey, error) { +func (c *Client) CreateHMACKey(ctx context.Context, projectID, serviceAccountEmail string) (*HMACKey, error) { if projectID == "" { return nil, errors.New("storage: expecting a non-blank projectID") } @@ -204,14 +183,6 @@ func (c *Client) CreateHMACKey(ctx context.Context, projectID, serviceAccountEma svc := raw.NewProjectsHmacKeysService(c.raw) call := svc.Create(projectID, serviceAccountEmail) - desc := new(hmacKeyDesc) - for _, opt := range opts { - opt.withHMACKeyDesc(desc) - } - if desc.userProjectID != "" { - call = call.UserProject(desc.userProjectID) - } - setClientHeader(call.Header()) var hkPb *raw.HmacKey @@ -241,7 +212,7 @@ type HMACKeyAttrsToUpdate struct { // Update mutates the HMACKey referred to by accessID. // // This method is EXPERIMENTAL and subject to change or removal without notice. -func (h *HMACKeyHandle) Update(ctx context.Context, au HMACKeyAttrsToUpdate, opts ...HMACKeyOption) (*HMACKey, error) { +func (h *HMACKeyHandle) Update(ctx context.Context, au HMACKeyAttrsToUpdate) (*HMACKey, error) { if au.State != Active && au.State != Inactive { return nil, fmt.Errorf("storage: invalid state %q for update, must be either %q or %q", au.State, Active, Inactive) } @@ -250,14 +221,6 @@ func (h *HMACKeyHandle) Update(ctx context.Context, au HMACKeyAttrsToUpdate, opt Etag: au.Etag, State: string(au.State), }) - - desc := new(hmacKeyDesc) - for _, opt := range opts { - opt.withHMACKeyDesc(desc) - } - if desc.userProjectID != "" { - call = call.UserProject(desc.userProjectID) - } setClientHeader(call.Header()) var metadata *raw.HmacKeyMetadata @@ -278,8 +241,6 @@ func (h *HMACKeyHandle) Update(ctx context.Context, au HMACKeyAttrsToUpdate, opt // An HMACKeysIterator is an iterator over HMACKeys. // -// Note: This iterator is not safe for concurrent operations without explicit synchronization. -// // This type is EXPERIMENTAL and subject to change or removal without notice. type HMACKeysIterator struct { ctx context.Context @@ -294,8 +255,6 @@ type HMACKeysIterator struct { // ListHMACKeys returns an iterator for listing HMACKeys. // -// Note: This iterator is not safe for concurrent operations without explicit synchronization. -// // This method is EXPERIMENTAL and subject to change or removal without notice. func (c *Client) ListHMACKeys(ctx context.Context, projectID string, opts ...HMACKeyOption) *HMACKeysIterator { it := &HMACKeysIterator{ @@ -324,8 +283,6 @@ func (c *Client) ListHMACKeys(ctx context.Context, projectID string, opts ...HMA // there are no more results. Once Next returns iterator.Done, all subsequent // calls will return iterator.Done. // -// Note: This iterator is not safe for concurrent operations without explicit synchronization. -// // This method is EXPERIMENTAL and subject to change or removal without notice. func (it *HMACKeysIterator) Next() (*HMACKey, error) { if err := it.nextFunc(); err != nil { @@ -340,8 +297,6 @@ func (it *HMACKeysIterator) Next() (*HMACKey, error) { // PageInfo supports pagination. See the google.golang.org/api/iterator package for details. // -// Note: This iterator is not safe for concurrent operations without explicit synchronization. -// // This method is EXPERIMENTAL and subject to change or removal without notice. func (it *HMACKeysIterator) PageInfo() *iterator.PageInfo { return it.pageInfo } @@ -394,8 +349,6 @@ type hmacKeyDesc struct { } // HMACKeyOption configures the behavior of HMACKey related methods and actions. -// -// This interface is EXPERIMENTAL and subject to change or removal without notice. type HMACKeyOption interface { withHMACKeyDesc(*hmacKeyDesc) } @@ -411,8 +364,6 @@ func (hkdf hmacKeyDescFunc) withHMACKeyDesc(hkd *hmacKeyDesc) { // // Only one service account email can be used as a filter, so if multiple // of these options are applied, the last email to be set will be used. -// -// This option is EXPERIMENTAL and subject to change or removal without notice. func ForHMACKeyServiceAccountEmail(serviceAccountEmail string) HMACKeyOption { return hmacKeyDescFunc(func(hkd *hmacKeyDesc) { hkd.forServiceAccountEmail = serviceAccountEmail @@ -420,21 +371,16 @@ func ForHMACKeyServiceAccountEmail(serviceAccountEmail string) HMACKeyOption { } // ShowDeletedHMACKeys will also list keys whose state is "DELETED". -// -// This option is EXPERIMENTAL and subject to change or removal without notice. func ShowDeletedHMACKeys() HMACKeyOption { return hmacKeyDescFunc(func(hkd *hmacKeyDesc) { hkd.showDeletedKeys = true }) } -// UserProjectForHMACKeys will bill the request against userProjectID -// if userProjectID is non-empty. +// HMACKeysForUserProject will bill the request against userProjectID. // // Note: This is a noop right now and only provided for API compatibility. -// -// This option is EXPERIMENTAL and subject to change or removal without notice. -func UserProjectForHMACKeys(userProjectID string) HMACKeyOption { +func HMACKeysForUserProject(userProjectID string) HMACKeyOption { return hmacKeyDescFunc(func(hkd *hmacKeyDesc) { hkd.userProjectID = userProjectID }) diff --git a/vendor/cloud.google.com/go/storage/storage.go b/vendor/cloud.google.com/go/storage/storage.go index c0bf509da..1ffb10f64 100644 --- a/vendor/cloud.google.com/go/storage/storage.go +++ b/vendor/cloud.google.com/go/storage/storage.go @@ -54,7 +54,7 @@ var ( ErrObjectNotExist = errors.New("storage: object doesn't exist") ) -var userAgent = fmt.Sprintf("gcloud-golang-storage/%s", version.Repo) +const userAgent = "gcloud-golang-storage/20151204" const ( // ScopeFullControl grants permissions to manage your @@ -94,20 +94,11 @@ type Client struct { // NewClient creates a new Google Cloud Storage client. // The default scope is ScopeFullControl. To use a different scope, like ScopeReadOnly, use option.WithScopes. func NewClient(ctx context.Context, opts ...option.ClientOption) (*Client, error) { - var host, readHost, scheme string - - if host = os.Getenv("STORAGE_EMULATOR_HOST"); host == "" { - scheme = "https" - readHost = "storage.googleapis.com" - - opts = append(opts, option.WithScopes(ScopeFullControl), option.WithUserAgent(userAgent)) - } else { - scheme = "http" - readHost = host - - opts = append(opts, option.WithoutAuthentication()) + o := []option.ClientOption{ + option.WithScopes(ScopeFullControl), + option.WithUserAgent(userAgent), } - + opts = append(o, opts...) hc, ep, err := htransport.NewClient(ctx, opts...) if err != nil { return nil, fmt.Errorf("dialing: %v", err) @@ -116,21 +107,17 @@ func NewClient(ctx context.Context, opts ...option.ClientOption) (*Client, error if err != nil { return nil, fmt.Errorf("storage client: %v", err) } - if ep == "" { - // Override the default value for BasePath from the raw client. - // TODO: remove when the raw client uses this endpoint as its default (~end of 2020) - rawService.BasePath = "https://storage.googleapis.com/storage/v1/" - } else { - // If the endpoint has been set explicitly, use this for the BasePath - // as well as readHost + if ep != "" { rawService.BasePath = ep - u, err := url.Parse(ep) - if err != nil { - return nil, fmt.Errorf("supplied endpoint %v is not valid: %v", ep, err) - } - readHost = u.Host } - + scheme := "https" + var host, readHost string + if host = os.Getenv("STORAGE_EMULATOR_HOST"); host != "" { + scheme = "http" + readHost = host + } else { + readHost = "storage.googleapis.com" + } return &Client{ hc: hc, raw: rawService, @@ -1002,12 +989,11 @@ type ObjectAttrs struct { // of a particular object. This field is read-only. Metageneration int64 - // StorageClass is the storage class of the object. This defines - // how objects are stored and determines the SLA and the cost of storage. - // Typical values are "STANDARD", "NEARLINE", "COLDLINE" and "ARCHIVE". - // Defaults to "STANDARD". - // See https://cloud.google.com/storage/docs/storage-classes for all - // valid values. + // StorageClass is the storage class of the object. + // This value defines how objects in the bucket are stored and + // determines the SLA and the cost of storage. Typical values are + // "NEARLINE", "COLDLINE" and "STANDARD". + // It defaults to "STANDARD". StorageClass string // Created is the time the object was created. This field is read-only. @@ -1139,78 +1125,6 @@ type Query struct { // Versions indicates whether multiple versions of the same // object will be included in the results. Versions bool - - // fieldSelection is used to select only specific fields to be returned by - // the query. It's used internally and is populated for the user by - // calling Query.SetAttrSelection - fieldSelection string -} - -// attrToFieldMap maps the field names of ObjectAttrs to the underlying field -// names in the API call. Only the ObjectAttrs field names are visible to users -// because they are already part of the public API of the package. -var attrToFieldMap = map[string]string{ - "Bucket": "bucket", - "Name": "name", - "ContentType": "contentType", - "ContentLanguage": "contentLanguage", - "CacheControl": "cacheControl", - "EventBasedHold": "eventBasedHold", - "TemporaryHold": "temporaryHold", - "RetentionExpirationTime": "retentionExpirationTime", - "ACL": "acl", - "Owner": "owner", - "ContentEncoding": "contentEncoding", - "ContentDisposition": "contentDisposition", - "Size": "size", - "MD5": "md5Hash", - "CRC32C": "crc32c", - "MediaLink": "mediaLink", - "Metadata": "metadata", - "Generation": "generation", - "Metageneration": "metageneration", - "StorageClass": "storageClass", - "CustomerKeySHA256": "customerEncryption", - "KMSKeyName": "kmsKeyName", - "Created": "timeCreated", - "Deleted": "timeDeleted", - "Updated": "updated", - "Etag": "etag", -} - -// SetAttrSelection makes the query populate only specific attributes of -// objects. When iterating over objects, if you only need each object's name -// and size, pass []string{"Name", "Size"} to this method. Only these fields -// will be fetched for each object across the network; the other fields of -// ObjectAttr will remain at their default values. This is a performance -// optimization; for more information, see -// https://cloud.google.com/storage/docs/json_api/v1/how-tos/performance -func (q *Query) SetAttrSelection(attrs []string) error { - fieldSet := make(map[string]bool) - - for _, attr := range attrs { - field, ok := attrToFieldMap[attr] - if !ok { - return fmt.Errorf("storage: attr %v is not valid", attr) - } - fieldSet[field] = true - } - - if len(fieldSet) > 0 { - var b strings.Builder - b.WriteString("items(") - first := true - for field := range fieldSet { - if !first { - b.WriteString(",") - } - first = false - b.WriteString(field) - } - b.WriteString(")") - q.fieldSelection = b.String() - } - return nil } // Conditions constrain methods to act on specific generations of diff --git a/vendor/github.com/google/go-cmp/cmp/cmpopts/equate.go b/vendor/github.com/google/go-cmp/cmp/cmpopts/equate.go deleted file mode 100644 index 41bbddc61..000000000 --- a/vendor/github.com/google/go-cmp/cmp/cmpopts/equate.go +++ /dev/null @@ -1,89 +0,0 @@ -// Copyright 2017, The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE.md file. - -// Package cmpopts provides common options for the cmp package. -package cmpopts - -import ( - "math" - "reflect" - - "github.com/google/go-cmp/cmp" -) - -func equateAlways(_, _ interface{}) bool { return true } - -// EquateEmpty returns a Comparer option that determines all maps and slices -// with a length of zero to be equal, regardless of whether they are nil. -// -// EquateEmpty can be used in conjunction with SortSlices and SortMaps. -func EquateEmpty() cmp.Option { - return cmp.FilterValues(isEmpty, cmp.Comparer(equateAlways)) -} - -func isEmpty(x, y interface{}) bool { - vx, vy := reflect.ValueOf(x), reflect.ValueOf(y) - return (x != nil && y != nil && vx.Type() == vy.Type()) && - (vx.Kind() == reflect.Slice || vx.Kind() == reflect.Map) && - (vx.Len() == 0 && vy.Len() == 0) -} - -// EquateApprox returns a Comparer option that determines float32 or float64 -// values to be equal if they are within a relative fraction or absolute margin. -// This option is not used when either x or y is NaN or infinite. -// -// The fraction determines that the difference of two values must be within the -// smaller fraction of the two values, while the margin determines that the two -// values must be within some absolute margin. -// To express only a fraction or only a margin, use 0 for the other parameter. -// The fraction and margin must be non-negative. -// -// The mathematical expression used is equivalent to: -// |x-y| ≤ max(fraction*min(|x|, |y|), margin) -// -// EquateApprox can be used in conjunction with EquateNaNs. -func EquateApprox(fraction, margin float64) cmp.Option { - if margin < 0 || fraction < 0 || math.IsNaN(margin) || math.IsNaN(fraction) { - panic("margin or fraction must be a non-negative number") - } - a := approximator{fraction, margin} - return cmp.Options{ - cmp.FilterValues(areRealF64s, cmp.Comparer(a.compareF64)), - cmp.FilterValues(areRealF32s, cmp.Comparer(a.compareF32)), - } -} - -type approximator struct{ frac, marg float64 } - -func areRealF64s(x, y float64) bool { - return !math.IsNaN(x) && !math.IsNaN(y) && !math.IsInf(x, 0) && !math.IsInf(y, 0) -} -func areRealF32s(x, y float32) bool { - return areRealF64s(float64(x), float64(y)) -} -func (a approximator) compareF64(x, y float64) bool { - relMarg := a.frac * math.Min(math.Abs(x), math.Abs(y)) - return math.Abs(x-y) <= math.Max(a.marg, relMarg) -} -func (a approximator) compareF32(x, y float32) bool { - return a.compareF64(float64(x), float64(y)) -} - -// EquateNaNs returns a Comparer option that determines float32 and float64 -// NaN values to be equal. -// -// EquateNaNs can be used in conjunction with EquateApprox. -func EquateNaNs() cmp.Option { - return cmp.Options{ - cmp.FilterValues(areNaNsF64s, cmp.Comparer(equateAlways)), - cmp.FilterValues(areNaNsF32s, cmp.Comparer(equateAlways)), - } -} - -func areNaNsF64s(x, y float64) bool { - return math.IsNaN(x) && math.IsNaN(y) -} -func areNaNsF32s(x, y float32) bool { - return areNaNsF64s(float64(x), float64(y)) -} diff --git a/vendor/github.com/google/go-cmp/cmp/cmpopts/ignore.go b/vendor/github.com/google/go-cmp/cmp/cmpopts/ignore.go deleted file mode 100644 index ff8e785d4..000000000 --- a/vendor/github.com/google/go-cmp/cmp/cmpopts/ignore.go +++ /dev/null @@ -1,207 +0,0 @@ -// Copyright 2017, The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE.md file. - -package cmpopts - -import ( - "fmt" - "reflect" - "unicode" - "unicode/utf8" - - "github.com/google/go-cmp/cmp" - "github.com/google/go-cmp/cmp/internal/function" -) - -// IgnoreFields returns an Option that ignores exported fields of the -// given names on a single struct type. -// The struct type is specified by passing in a value of that type. -// -// The name may be a dot-delimited string (e.g., "Foo.Bar") to ignore a -// specific sub-field that is embedded or nested within the parent struct. -// -// This does not handle unexported fields; use IgnoreUnexported instead. -func IgnoreFields(typ interface{}, names ...string) cmp.Option { - sf := newStructFilter(typ, names...) - return cmp.FilterPath(sf.filter, cmp.Ignore()) -} - -// IgnoreTypes returns an Option that ignores all values assignable to -// certain types, which are specified by passing in a value of each type. -func IgnoreTypes(typs ...interface{}) cmp.Option { - tf := newTypeFilter(typs...) - return cmp.FilterPath(tf.filter, cmp.Ignore()) -} - -type typeFilter []reflect.Type - -func newTypeFilter(typs ...interface{}) (tf typeFilter) { - for _, typ := range typs { - t := reflect.TypeOf(typ) - if t == nil { - // This occurs if someone tries to pass in sync.Locker(nil) - panic("cannot determine type; consider using IgnoreInterfaces") - } - tf = append(tf, t) - } - return tf -} -func (tf typeFilter) filter(p cmp.Path) bool { - if len(p) < 1 { - return false - } - t := p.Last().Type() - for _, ti := range tf { - if t.AssignableTo(ti) { - return true - } - } - return false -} - -// IgnoreInterfaces returns an Option that ignores all values or references of -// values assignable to certain interface types. These interfaces are specified -// by passing in an anonymous struct with the interface types embedded in it. -// For example, to ignore sync.Locker, pass in struct{sync.Locker}{}. -func IgnoreInterfaces(ifaces interface{}) cmp.Option { - tf := newIfaceFilter(ifaces) - return cmp.FilterPath(tf.filter, cmp.Ignore()) -} - -type ifaceFilter []reflect.Type - -func newIfaceFilter(ifaces interface{}) (tf ifaceFilter) { - t := reflect.TypeOf(ifaces) - if ifaces == nil || t.Name() != "" || t.Kind() != reflect.Struct { - panic("input must be an anonymous struct") - } - for i := 0; i < t.NumField(); i++ { - fi := t.Field(i) - switch { - case !fi.Anonymous: - panic("struct cannot have named fields") - case fi.Type.Kind() != reflect.Interface: - panic("embedded field must be an interface type") - case fi.Type.NumMethod() == 0: - // This matches everything; why would you ever want this? - panic("cannot ignore empty interface") - default: - tf = append(tf, fi.Type) - } - } - return tf -} -func (tf ifaceFilter) filter(p cmp.Path) bool { - if len(p) < 1 { - return false - } - t := p.Last().Type() - for _, ti := range tf { - if t.AssignableTo(ti) { - return true - } - if t.Kind() != reflect.Ptr && reflect.PtrTo(t).AssignableTo(ti) { - return true - } - } - return false -} - -// IgnoreUnexported returns an Option that only ignores the immediate unexported -// fields of a struct, including anonymous fields of unexported types. -// In particular, unexported fields within the struct's exported fields -// of struct types, including anonymous fields, will not be ignored unless the -// type of the field itself is also passed to IgnoreUnexported. -// -// Avoid ignoring unexported fields of a type which you do not control (i.e. a -// type from another repository), as changes to the implementation of such types -// may change how the comparison behaves. Prefer a custom Comparer instead. -func IgnoreUnexported(typs ...interface{}) cmp.Option { - ux := newUnexportedFilter(typs...) - return cmp.FilterPath(ux.filter, cmp.Ignore()) -} - -type unexportedFilter struct{ m map[reflect.Type]bool } - -func newUnexportedFilter(typs ...interface{}) unexportedFilter { - ux := unexportedFilter{m: make(map[reflect.Type]bool)} - for _, typ := range typs { - t := reflect.TypeOf(typ) - if t == nil || t.Kind() != reflect.Struct { - panic(fmt.Sprintf("invalid struct type: %T", typ)) - } - ux.m[t] = true - } - return ux -} -func (xf unexportedFilter) filter(p cmp.Path) bool { - sf, ok := p.Index(-1).(cmp.StructField) - if !ok { - return false - } - return xf.m[p.Index(-2).Type()] && !isExported(sf.Name()) -} - -// isExported reports whether the identifier is exported. -func isExported(id string) bool { - r, _ := utf8.DecodeRuneInString(id) - return unicode.IsUpper(r) -} - -// IgnoreSliceElements returns an Option that ignores elements of []V. -// The discard function must be of the form "func(T) bool" which is used to -// ignore slice elements of type V, where V is assignable to T. -// Elements are ignored if the function reports true. -func IgnoreSliceElements(discardFunc interface{}) cmp.Option { - vf := reflect.ValueOf(discardFunc) - if !function.IsType(vf.Type(), function.ValuePredicate) || vf.IsNil() { - panic(fmt.Sprintf("invalid discard function: %T", discardFunc)) - } - return cmp.FilterPath(func(p cmp.Path) bool { - si, ok := p.Index(-1).(cmp.SliceIndex) - if !ok { - return false - } - if !si.Type().AssignableTo(vf.Type().In(0)) { - return false - } - vx, vy := si.Values() - if vx.IsValid() && vf.Call([]reflect.Value{vx})[0].Bool() { - return true - } - if vy.IsValid() && vf.Call([]reflect.Value{vy})[0].Bool() { - return true - } - return false - }, cmp.Ignore()) -} - -// IgnoreMapEntries returns an Option that ignores entries of map[K]V. -// The discard function must be of the form "func(T, R) bool" which is used to -// ignore map entries of type K and V, where K and V are assignable to T and R. -// Entries are ignored if the function reports true. -func IgnoreMapEntries(discardFunc interface{}) cmp.Option { - vf := reflect.ValueOf(discardFunc) - if !function.IsType(vf.Type(), function.KeyValuePredicate) || vf.IsNil() { - panic(fmt.Sprintf("invalid discard function: %T", discardFunc)) - } - return cmp.FilterPath(func(p cmp.Path) bool { - mi, ok := p.Index(-1).(cmp.MapIndex) - if !ok { - return false - } - if !mi.Key().Type().AssignableTo(vf.Type().In(0)) || !mi.Type().AssignableTo(vf.Type().In(1)) { - return false - } - k := mi.Key() - vx, vy := mi.Values() - if vx.IsValid() && vf.Call([]reflect.Value{k, vx})[0].Bool() { - return true - } - if vy.IsValid() && vf.Call([]reflect.Value{k, vy})[0].Bool() { - return true - } - return false - }, cmp.Ignore()) -} diff --git a/vendor/github.com/google/go-cmp/cmp/cmpopts/sort.go b/vendor/github.com/google/go-cmp/cmp/cmpopts/sort.go deleted file mode 100644 index 3a4804621..000000000 --- a/vendor/github.com/google/go-cmp/cmp/cmpopts/sort.go +++ /dev/null @@ -1,147 +0,0 @@ -// Copyright 2017, The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE.md file. - -package cmpopts - -import ( - "fmt" - "reflect" - "sort" - - "github.com/google/go-cmp/cmp" - "github.com/google/go-cmp/cmp/internal/function" -) - -// SortSlices returns a Transformer option that sorts all []V. -// The less function must be of the form "func(T, T) bool" which is used to -// sort any slice with element type V that is assignable to T. -// -// The less function must be: -// • Deterministic: less(x, y) == less(x, y) -// • Irreflexive: !less(x, x) -// • Transitive: if !less(x, y) and !less(y, z), then !less(x, z) -// -// The less function does not have to be "total". That is, if !less(x, y) and -// !less(y, x) for two elements x and y, their relative order is maintained. -// -// SortSlices can be used in conjunction with EquateEmpty. -func SortSlices(lessFunc interface{}) cmp.Option { - vf := reflect.ValueOf(lessFunc) - if !function.IsType(vf.Type(), function.Less) || vf.IsNil() { - panic(fmt.Sprintf("invalid less function: %T", lessFunc)) - } - ss := sliceSorter{vf.Type().In(0), vf} - return cmp.FilterValues(ss.filter, cmp.Transformer("cmpopts.SortSlices", ss.sort)) -} - -type sliceSorter struct { - in reflect.Type // T - fnc reflect.Value // func(T, T) bool -} - -func (ss sliceSorter) filter(x, y interface{}) bool { - vx, vy := reflect.ValueOf(x), reflect.ValueOf(y) - if !(x != nil && y != nil && vx.Type() == vy.Type()) || - !(vx.Kind() == reflect.Slice && vx.Type().Elem().AssignableTo(ss.in)) || - (vx.Len() <= 1 && vy.Len() <= 1) { - return false - } - // Check whether the slices are already sorted to avoid an infinite - // recursion cycle applying the same transform to itself. - ok1 := sort.SliceIsSorted(x, func(i, j int) bool { return ss.less(vx, i, j) }) - ok2 := sort.SliceIsSorted(y, func(i, j int) bool { return ss.less(vy, i, j) }) - return !ok1 || !ok2 -} -func (ss sliceSorter) sort(x interface{}) interface{} { - src := reflect.ValueOf(x) - dst := reflect.MakeSlice(src.Type(), src.Len(), src.Len()) - for i := 0; i < src.Len(); i++ { - dst.Index(i).Set(src.Index(i)) - } - sort.SliceStable(dst.Interface(), func(i, j int) bool { return ss.less(dst, i, j) }) - ss.checkSort(dst) - return dst.Interface() -} -func (ss sliceSorter) checkSort(v reflect.Value) { - start := -1 // Start of a sequence of equal elements. - for i := 1; i < v.Len(); i++ { - if ss.less(v, i-1, i) { - // Check that first and last elements in v[start:i] are equal. - if start >= 0 && (ss.less(v, start, i-1) || ss.less(v, i-1, start)) { - panic(fmt.Sprintf("incomparable values detected: want equal elements: %v", v.Slice(start, i))) - } - start = -1 - } else if start == -1 { - start = i - } - } -} -func (ss sliceSorter) less(v reflect.Value, i, j int) bool { - vx, vy := v.Index(i), v.Index(j) - return ss.fnc.Call([]reflect.Value{vx, vy})[0].Bool() -} - -// SortMaps returns a Transformer option that flattens map[K]V types to be a -// sorted []struct{K, V}. The less function must be of the form -// "func(T, T) bool" which is used to sort any map with key K that is -// assignable to T. -// -// Flattening the map into a slice has the property that cmp.Equal is able to -// use Comparers on K or the K.Equal method if it exists. -// -// The less function must be: -// • Deterministic: less(x, y) == less(x, y) -// • Irreflexive: !less(x, x) -// • Transitive: if !less(x, y) and !less(y, z), then !less(x, z) -// • Total: if x != y, then either less(x, y) or less(y, x) -// -// SortMaps can be used in conjunction with EquateEmpty. -func SortMaps(lessFunc interface{}) cmp.Option { - vf := reflect.ValueOf(lessFunc) - if !function.IsType(vf.Type(), function.Less) || vf.IsNil() { - panic(fmt.Sprintf("invalid less function: %T", lessFunc)) - } - ms := mapSorter{vf.Type().In(0), vf} - return cmp.FilterValues(ms.filter, cmp.Transformer("cmpopts.SortMaps", ms.sort)) -} - -type mapSorter struct { - in reflect.Type // T - fnc reflect.Value // func(T, T) bool -} - -func (ms mapSorter) filter(x, y interface{}) bool { - vx, vy := reflect.ValueOf(x), reflect.ValueOf(y) - return (x != nil && y != nil && vx.Type() == vy.Type()) && - (vx.Kind() == reflect.Map && vx.Type().Key().AssignableTo(ms.in)) && - (vx.Len() != 0 || vy.Len() != 0) -} -func (ms mapSorter) sort(x interface{}) interface{} { - src := reflect.ValueOf(x) - outType := reflect.StructOf([]reflect.StructField{ - {Name: "K", Type: src.Type().Key()}, - {Name: "V", Type: src.Type().Elem()}, - }) - dst := reflect.MakeSlice(reflect.SliceOf(outType), src.Len(), src.Len()) - for i, k := range src.MapKeys() { - v := reflect.New(outType).Elem() - v.Field(0).Set(k) - v.Field(1).Set(src.MapIndex(k)) - dst.Index(i).Set(v) - } - sort.Slice(dst.Interface(), func(i, j int) bool { return ms.less(dst, i, j) }) - ms.checkSort(dst) - return dst.Interface() -} -func (ms mapSorter) checkSort(v reflect.Value) { - for i := 1; i < v.Len(); i++ { - if !ms.less(v, i-1, i) { - panic(fmt.Sprintf("partial order detected: want %v < %v", v.Index(i-1), v.Index(i))) - } - } -} -func (ms mapSorter) less(v reflect.Value, i, j int) bool { - vx, vy := v.Index(i).Field(0), v.Index(j).Field(0) - return ms.fnc.Call([]reflect.Value{vx, vy})[0].Bool() -} diff --git a/vendor/github.com/google/go-cmp/cmp/cmpopts/struct_filter.go b/vendor/github.com/google/go-cmp/cmp/cmpopts/struct_filter.go deleted file mode 100644 index 97f707983..000000000 --- a/vendor/github.com/google/go-cmp/cmp/cmpopts/struct_filter.go +++ /dev/null @@ -1,182 +0,0 @@ -// Copyright 2017, The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE.md file. - -package cmpopts - -import ( - "fmt" - "reflect" - "strings" - - "github.com/google/go-cmp/cmp" -) - -// filterField returns a new Option where opt is only evaluated on paths that -// include a specific exported field on a single struct type. -// The struct type is specified by passing in a value of that type. -// -// The name may be a dot-delimited string (e.g., "Foo.Bar") to select a -// specific sub-field that is embedded or nested within the parent struct. -func filterField(typ interface{}, name string, opt cmp.Option) cmp.Option { - // TODO: This is currently unexported over concerns of how helper filters - // can be composed together easily. - // TODO: Add tests for FilterField. - - sf := newStructFilter(typ, name) - return cmp.FilterPath(sf.filter, opt) -} - -type structFilter struct { - t reflect.Type // The root struct type to match on - ft fieldTree // Tree of fields to match on -} - -func newStructFilter(typ interface{}, names ...string) structFilter { - // TODO: Perhaps allow * as a special identifier to allow ignoring any - // number of path steps until the next field match? - // This could be useful when a concrete struct gets transformed into - // an anonymous struct where it is not possible to specify that by type, - // but the transformer happens to provide guarantees about the names of - // the transformed fields. - - t := reflect.TypeOf(typ) - if t == nil || t.Kind() != reflect.Struct { - panic(fmt.Sprintf("%T must be a struct", typ)) - } - var ft fieldTree - for _, name := range names { - cname, err := canonicalName(t, name) - if err != nil { - panic(fmt.Sprintf("%s: %v", strings.Join(cname, "."), err)) - } - ft.insert(cname) - } - return structFilter{t, ft} -} - -func (sf structFilter) filter(p cmp.Path) bool { - for i, ps := range p { - if ps.Type().AssignableTo(sf.t) && sf.ft.matchPrefix(p[i+1:]) { - return true - } - } - return false -} - -// fieldTree represents a set of dot-separated identifiers. -// -// For example, inserting the following selectors: -// Foo -// Foo.Bar.Baz -// Foo.Buzz -// Nuka.Cola.Quantum -// -// Results in a tree of the form: -// {sub: { -// "Foo": {ok: true, sub: { -// "Bar": {sub: { -// "Baz": {ok: true}, -// }}, -// "Buzz": {ok: true}, -// }}, -// "Nuka": {sub: { -// "Cola": {sub: { -// "Quantum": {ok: true}, -// }}, -// }}, -// }} -type fieldTree struct { - ok bool // Whether this is a specified node - sub map[string]fieldTree // The sub-tree of fields under this node -} - -// insert inserts a sequence of field accesses into the tree. -func (ft *fieldTree) insert(cname []string) { - if ft.sub == nil { - ft.sub = make(map[string]fieldTree) - } - if len(cname) == 0 { - ft.ok = true - return - } - sub := ft.sub[cname[0]] - sub.insert(cname[1:]) - ft.sub[cname[0]] = sub -} - -// matchPrefix reports whether any selector in the fieldTree matches -// the start of path p. -func (ft fieldTree) matchPrefix(p cmp.Path) bool { - for _, ps := range p { - switch ps := ps.(type) { - case cmp.StructField: - ft = ft.sub[ps.Name()] - if ft.ok { - return true - } - if len(ft.sub) == 0 { - return false - } - case cmp.Indirect: - default: - return false - } - } - return false -} - -// canonicalName returns a list of identifiers where any struct field access -// through an embedded field is expanded to include the names of the embedded -// types themselves. -// -// For example, suppose field "Foo" is not directly in the parent struct, -// but actually from an embedded struct of type "Bar". Then, the canonical name -// of "Foo" is actually "Bar.Foo". -// -// Suppose field "Foo" is not directly in the parent struct, but actually -// a field in two different embedded structs of types "Bar" and "Baz". -// Then the selector "Foo" causes a panic since it is ambiguous which one it -// refers to. The user must specify either "Bar.Foo" or "Baz.Foo". -func canonicalName(t reflect.Type, sel string) ([]string, error) { - var name string - sel = strings.TrimPrefix(sel, ".") - if sel == "" { - return nil, fmt.Errorf("name must not be empty") - } - if i := strings.IndexByte(sel, '.'); i < 0 { - name, sel = sel, "" - } else { - name, sel = sel[:i], sel[i:] - } - - // Type must be a struct or pointer to struct. - if t.Kind() == reflect.Ptr { - t = t.Elem() - } - if t.Kind() != reflect.Struct { - return nil, fmt.Errorf("%v must be a struct", t) - } - - // Find the canonical name for this current field name. - // If the field exists in an embedded struct, then it will be expanded. - if !isExported(name) { - // Disallow unexported fields: - // * To discourage people from actually touching unexported fields - // * FieldByName is buggy (https://golang.org/issue/4876) - return []string{name}, fmt.Errorf("name must be exported") - } - sf, ok := t.FieldByName(name) - if !ok { - return []string{name}, fmt.Errorf("does not exist") - } - var ss []string - for i := range sf.Index { - ss = append(ss, t.FieldByIndex(sf.Index[:i+1]).Name) - } - if sel == "" { - return ss, nil - } - ssPost, err := canonicalName(sf.Type, sel) - return append(ss, ssPost...), err -} diff --git a/vendor/github.com/google/go-cmp/cmp/cmpopts/xform.go b/vendor/github.com/google/go-cmp/cmp/cmpopts/xform.go deleted file mode 100644 index 9d651553d..000000000 --- a/vendor/github.com/google/go-cmp/cmp/cmpopts/xform.go +++ /dev/null @@ -1,35 +0,0 @@ -// Copyright 2018, The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE.md file. - -package cmpopts - -import ( - "github.com/google/go-cmp/cmp" -) - -type xformFilter struct{ xform cmp.Option } - -func (xf xformFilter) filter(p cmp.Path) bool { - for _, ps := range p { - if t, ok := ps.(cmp.Transform); ok && t.Option() == xf.xform { - return false - } - } - return true -} - -// AcyclicTransformer returns a Transformer with a filter applied that ensures -// that the transformer cannot be recursively applied upon its own output. -// -// An example use case is a transformer that splits a string by lines: -// AcyclicTransformer("SplitLines", func(s string) []string{ -// return strings.Split(s, "\n") -// }) -// -// Had this been an unfiltered Transformer instead, this would result in an -// infinite cycle converting a string to []string to [][]string and so on. -func AcyclicTransformer(name string, xformFunc interface{}) cmp.Option { - xf := xformFilter{cmp.Transformer(name, xformFunc)} - return cmp.FilterPath(xf.filter, xf.xform) -} diff --git a/vendor/github.com/google/go-cmp/cmp/compare.go b/vendor/github.com/google/go-cmp/cmp/compare.go index 2133562b0..c9a63ceda 100644 --- a/vendor/github.com/google/go-cmp/cmp/compare.go +++ b/vendor/github.com/google/go-cmp/cmp/compare.go @@ -22,8 +22,8 @@ // equality is determined by recursively comparing the primitive kinds on both // values, much like reflect.DeepEqual. Unlike reflect.DeepEqual, unexported // fields are not compared by default; they result in panics unless suppressed -// by using an Ignore option (see cmpopts.IgnoreUnexported) or explicitly compared -// using the AllowUnexported option. +// by using an Ignore option (see cmpopts.IgnoreUnexported) or explicitly +// compared using the Exporter option. package cmp import ( @@ -62,8 +62,8 @@ import ( // // Structs are equal if recursively calling Equal on all fields report equal. // If a struct contains unexported fields, Equal panics unless an Ignore option -// (e.g., cmpopts.IgnoreUnexported) ignores that field or the AllowUnexported -// option explicitly permits comparing the unexported field. +// (e.g., cmpopts.IgnoreUnexported) ignores that field or the Exporter option +// explicitly permits comparing the unexported field. // // Slices are equal if they are both nil or both non-nil, where recursively // calling Equal on all non-ignored slice or array elements report equal. @@ -80,6 +80,11 @@ import ( // Pointers and interfaces are equal if they are both nil or both non-nil, // where they have the same underlying concrete type and recursively // calling Equal on the underlying values reports equal. +// +// Before recursing into a pointer, slice element, or map, the current path +// is checked to detect whether the address has already been visited. +// If there is a cycle, then the pointed at values are considered equal +// only if both addresses were previously visited in the same path step. func Equal(x, y interface{}, opts ...Option) bool { vx := reflect.ValueOf(x) vy := reflect.ValueOf(y) @@ -137,6 +142,7 @@ type state struct { // Calling statelessCompare must not result in observable changes to these. result diff.Result // The current result of comparison curPath Path // The current path in the value tree + curPtrs pointerPath // The current set of visited pointers reporters []reporter // Optional reporters // recChecker checks for infinite cycles applying the same set of @@ -148,13 +154,14 @@ type state struct { dynChecker dynChecker // These fields, once set by processOption, will not change. - exporters map[reflect.Type]bool // Set of structs with unexported field visibility - opts Options // List of all fundamental and filter options + exporters []exporter // List of exporters for structs with unexported fields + opts Options // List of all fundamental and filter options } func newState(opts []Option) *state { // Always ensure a validator option exists to validate the inputs. s := &state{opts: Options{validator{}}} + s.curPtrs.Init() s.processOption(Options(opts)) return s } @@ -174,13 +181,8 @@ func (s *state) processOption(opt Option) { panic(fmt.Sprintf("cannot use an unfiltered option: %v", opt)) } s.opts = append(s.opts, opt) - case visibleStructs: - if s.exporters == nil { - s.exporters = make(map[reflect.Type]bool) - } - for t := range opt { - s.exporters[t] = true - } + case exporter: + s.exporters = append(s.exporters, opt) case reporter: s.reporters = append(s.reporters, opt) default: @@ -192,9 +194,9 @@ func (s *state) processOption(opt Option) { // This function is stateless in that it does not alter the current result, // or output to any registered reporters. func (s *state) statelessCompare(step PathStep) diff.Result { - // We do not save and restore the curPath because all of the compareX - // methods should properly push and pop from the path. - // It is an implementation bug if the contents of curPath differs from + // We do not save and restore curPath and curPtrs because all of the + // compareX methods should properly push and pop from them. + // It is an implementation bug if the contents of the paths differ from // when calling this function to when returning from it. oldResult, oldReporters := s.result, s.reporters @@ -216,9 +218,17 @@ func (s *state) compareAny(step PathStep) { } s.recChecker.Check(s.curPath) - // Obtain the current type and values. + // Cycle-detection for slice elements (see NOTE in compareSlice). t := step.Type() vx, vy := step.Values() + if si, ok := step.(SliceIndex); ok && si.isSlice && vx.IsValid() && vy.IsValid() { + px, py := vx.Addr(), vy.Addr() + if eq, visited := s.curPtrs.Push(px, py); visited { + s.report(eq, reportByCycle) + return + } + defer s.curPtrs.Pop(px, py) + } // Rule 1: Check whether an option applies on this node in the value tree. if s.tryOptions(t, vx, vy) { @@ -354,6 +364,7 @@ func sanitizeValue(v reflect.Value, t reflect.Type) reflect.Value { func (s *state) compareStruct(t reflect.Type, vx, vy reflect.Value) { var vax, vay reflect.Value // Addressable versions of vx and vy + var mayForce, mayForceInit bool step := StructField{&structField{}} for i := 0; i < t.NumField(); i++ { step.typ = t.Field(i).Type @@ -375,7 +386,13 @@ func (s *state) compareStruct(t reflect.Type, vx, vy reflect.Value) { vax = makeAddressable(vx) vay = makeAddressable(vy) } - step.mayForce = s.exporters[t] + if !mayForceInit { + for _, xf := range s.exporters { + mayForce = mayForce || xf(t) + } + mayForceInit = true + } + step.mayForce = mayForce step.pvx = vax step.pvy = vay step.field = t.Field(i) @@ -391,9 +408,21 @@ func (s *state) compareSlice(t reflect.Type, vx, vy reflect.Value) { return } - // TODO: Support cyclic data structures. + // NOTE: It is incorrect to call curPtrs.Push on the slice header pointer + // since slices represents a list of pointers, rather than a single pointer. + // The pointer checking logic must be handled on a per-element basis + // in compareAny. + // + // A slice header (see reflect.SliceHeader) in Go is a tuple of a starting + // pointer P, a length N, and a capacity C. Supposing each slice element has + // a memory size of M, then the slice is equivalent to the list of pointers: + // [P+i*M for i in range(N)] + // + // For example, v[:0] and v[:1] are slices with the same starting pointer, + // but they are clearly different values. Using the slice pointer alone + // violates the assumption that equal pointers implies equal values. - step := SliceIndex{&sliceIndex{pathStep: pathStep{typ: t.Elem()}}} + step := SliceIndex{&sliceIndex{pathStep: pathStep{typ: t.Elem()}, isSlice: isSlice}} withIndexes := func(ix, iy int) SliceIndex { if ix >= 0 { step.vx, step.xkey = vx.Index(ix), ix @@ -470,7 +499,12 @@ func (s *state) compareMap(t reflect.Type, vx, vy reflect.Value) { return } - // TODO: Support cyclic data structures. + // Cycle-detection for maps. + if eq, visited := s.curPtrs.Push(vx, vy); visited { + s.report(eq, reportByCycle) + return + } + defer s.curPtrs.Pop(vx, vy) // We combine and sort the two map keys so that we can perform the // comparisons in a deterministic order. @@ -507,7 +541,12 @@ func (s *state) comparePtr(t reflect.Type, vx, vy reflect.Value) { return } - // TODO: Support cyclic data structures. + // Cycle-detection for pointers. + if eq, visited := s.curPtrs.Push(vx, vy); visited { + s.report(eq, reportByCycle) + return + } + defer s.curPtrs.Pop(vx, vy) vx, vy = vx.Elem(), vy.Elem() s.compareAny(Indirect{&indirect{pathStep{t.Elem(), vx, vy}}}) diff --git a/vendor/github.com/google/go-cmp/cmp/export_panic.go b/vendor/github.com/google/go-cmp/cmp/export_panic.go index abc3a1c3e..dd032354f 100644 --- a/vendor/github.com/google/go-cmp/cmp/export_panic.go +++ b/vendor/github.com/google/go-cmp/cmp/export_panic.go @@ -8,8 +8,8 @@ package cmp import "reflect" -const supportAllowUnexported = false +const supportExporters = false func retrieveUnexportedField(reflect.Value, reflect.StructField) reflect.Value { - panic("retrieveUnexportedField is not implemented") + panic("no support for forcibly accessing unexported fields") } diff --git a/vendor/github.com/google/go-cmp/cmp/export_unsafe.go b/vendor/github.com/google/go-cmp/cmp/export_unsafe.go index 59d4ee91b..57020e26c 100644 --- a/vendor/github.com/google/go-cmp/cmp/export_unsafe.go +++ b/vendor/github.com/google/go-cmp/cmp/export_unsafe.go @@ -11,7 +11,7 @@ import ( "unsafe" ) -const supportAllowUnexported = true +const supportExporters = true // retrieveUnexportedField uses unsafe to forcibly retrieve any field from // a struct such that the value has read-write permissions. @@ -19,5 +19,7 @@ const supportAllowUnexported = true // The parent struct, v, must be addressable, while f must be a StructField // describing the field to retrieve. func retrieveUnexportedField(v reflect.Value, f reflect.StructField) reflect.Value { - return reflect.NewAt(f.Type, unsafe.Pointer(v.UnsafeAddr()+f.Offset)).Elem() + // See https://github.com/google/go-cmp/issues/167 for discussion of the + // following expression. + return reflect.NewAt(f.Type, unsafe.Pointer(uintptr(unsafe.Pointer(v.UnsafeAddr()))+f.Offset)).Elem() } diff --git a/vendor/github.com/google/go-cmp/cmp/internal/testprotos/protos.go b/vendor/github.com/google/go-cmp/cmp/internal/testprotos/protos.go deleted file mode 100644 index 120c8b0e8..000000000 --- a/vendor/github.com/google/go-cmp/cmp/internal/testprotos/protos.go +++ /dev/null @@ -1,116 +0,0 @@ -// Copyright 2017, The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE.md file. - -package testprotos - -func Equal(x, y Message) bool { - if x == nil || y == nil { - return x == nil && y == nil - } - return x.String() == y.String() -} - -type Message interface { - Proto() - String() string -} - -type proto interface { - Proto() -} - -type notComparable struct { - unexportedField func() -} - -type Stringer struct{ X string } - -func (s *Stringer) String() string { return s.X } - -// Project1 protocol buffers -type ( - Eagle_States int - Eagle_MissingCalls int - Dreamer_States int - Dreamer_MissingCalls int - Slap_States int - Goat_States int - Donkey_States int - SummerType int - - Eagle struct { - proto - notComparable - Stringer - } - Dreamer struct { - proto - notComparable - Stringer - } - Slap struct { - proto - notComparable - Stringer - } - Goat struct { - proto - notComparable - Stringer - } - Donkey struct { - proto - notComparable - Stringer - } -) - -// Project2 protocol buffers -type ( - Germ struct { - proto - notComparable - Stringer - } - Dish struct { - proto - notComparable - Stringer - } -) - -// Project3 protocol buffers -type ( - Dirt struct { - proto - notComparable - Stringer - } - Wizard struct { - proto - notComparable - Stringer - } - Sadistic struct { - proto - notComparable - Stringer - } -) - -// Project4 protocol buffers -type ( - HoneyStatus int - PoisonType int - MetaData struct { - proto - notComparable - Stringer - } - Restrictions struct { - proto - notComparable - Stringer - } -) diff --git a/vendor/github.com/google/go-cmp/cmp/internal/teststructs/project1.go b/vendor/github.com/google/go-cmp/cmp/internal/teststructs/project1.go deleted file mode 100644 index 1999e38fd..000000000 --- a/vendor/github.com/google/go-cmp/cmp/internal/teststructs/project1.go +++ /dev/null @@ -1,267 +0,0 @@ -// Copyright 2017, The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE.md file. - -package teststructs - -import ( - "time" - - pb "github.com/google/go-cmp/cmp/internal/testprotos" -) - -// This is an sanitized example of equality from a real use-case. -// The original equality function was as follows: -/* -func equalEagle(x, y Eagle) bool { - if x.Name != y.Name && - !reflect.DeepEqual(x.Hounds, y.Hounds) && - x.Desc != y.Desc && - x.DescLong != y.DescLong && - x.Prong != y.Prong && - x.StateGoverner != y.StateGoverner && - x.PrankRating != y.PrankRating && - x.FunnyPrank != y.FunnyPrank && - !pb.Equal(x.Immutable.Proto(), y.Immutable.Proto()) { - return false - } - - if len(x.Dreamers) != len(y.Dreamers) { - return false - } - for i := range x.Dreamers { - if !equalDreamer(x.Dreamers[i], y.Dreamers[i]) { - return false - } - } - if len(x.Slaps) != len(y.Slaps) { - return false - } - for i := range x.Slaps { - if !equalSlap(x.Slaps[i], y.Slaps[i]) { - return false - } - } - return true -} -func equalDreamer(x, y Dreamer) bool { - if x.Name != y.Name || - x.Desc != y.Desc || - x.DescLong != y.DescLong || - x.ContSlapsInterval != y.ContSlapsInterval || - x.Ornamental != y.Ornamental || - x.Amoeba != y.Amoeba || - x.Heroes != y.Heroes || - x.FloppyDisk != y.FloppyDisk || - x.MightiestDuck != y.MightiestDuck || - x.FunnyPrank != y.FunnyPrank || - !pb.Equal(x.Immutable.Proto(), y.Immutable.Proto()) { - - return false - } - if len(x.Animal) != len(y.Animal) { - return false - } - for i := range x.Animal { - vx := x.Animal[i] - vy := y.Animal[i] - if reflect.TypeOf(x.Animal) != reflect.TypeOf(y.Animal) { - return false - } - switch vx.(type) { - case Goat: - if !equalGoat(vx.(Goat), vy.(Goat)) { - return false - } - case Donkey: - if !equalDonkey(vx.(Donkey), vy.(Donkey)) { - return false - } - default: - panic(fmt.Sprintf("unknown type: %T", vx)) - } - } - if len(x.PreSlaps) != len(y.PreSlaps) { - return false - } - for i := range x.PreSlaps { - if !equalSlap(x.PreSlaps[i], y.PreSlaps[i]) { - return false - } - } - if len(x.ContSlaps) != len(y.ContSlaps) { - return false - } - for i := range x.ContSlaps { - if !equalSlap(x.ContSlaps[i], y.ContSlaps[i]) { - return false - } - } - return true -} -func equalSlap(x, y Slap) bool { - return x.Name == y.Name && - x.Desc == y.Desc && - x.DescLong == y.DescLong && - pb.Equal(x.Args, y.Args) && - x.Tense == y.Tense && - x.Interval == y.Interval && - x.Homeland == y.Homeland && - x.FunnyPrank == y.FunnyPrank && - pb.Equal(x.Immutable.Proto(), y.Immutable.Proto()) -} -func equalGoat(x, y Goat) bool { - if x.Target != y.Target || - x.FunnyPrank != y.FunnyPrank || - !pb.Equal(x.Immutable.Proto(), y.Immutable.Proto()) { - return false - } - if len(x.Slaps) != len(y.Slaps) { - return false - } - for i := range x.Slaps { - if !equalSlap(x.Slaps[i], y.Slaps[i]) { - return false - } - } - return true -} -func equalDonkey(x, y Donkey) bool { - return x.Pause == y.Pause && - x.Sleep == y.Sleep && - x.FunnyPrank == y.FunnyPrank && - pb.Equal(x.Immutable.Proto(), y.Immutable.Proto()) -} -*/ - -type Eagle struct { - Name string - Hounds []string - Desc string - DescLong string - Dreamers []Dreamer - Prong int64 - Slaps []Slap - StateGoverner string - PrankRating string - FunnyPrank string - Immutable *EagleImmutable -} - -type EagleImmutable struct { - ID string - State *pb.Eagle_States - MissingCall *pb.Eagle_MissingCalls - Birthday time.Time - Death time.Time - Started time.Time - LastUpdate time.Time - Creator string - empty bool -} - -type Dreamer struct { - Name string - Desc string - DescLong string - PreSlaps []Slap - ContSlaps []Slap - ContSlapsInterval int32 - Animal []interface{} // Could be either Goat or Donkey - Ornamental bool - Amoeba int64 - Heroes int32 - FloppyDisk int32 - MightiestDuck bool - FunnyPrank string - Immutable *DreamerImmutable -} - -type DreamerImmutable struct { - ID string - State *pb.Dreamer_States - MissingCall *pb.Dreamer_MissingCalls - Calls int32 - Started time.Time - Stopped time.Time - LastUpdate time.Time - empty bool -} - -type Slap struct { - Name string - Desc string - DescLong string - Args pb.Message - Tense int32 - Interval int32 - Homeland uint32 - FunnyPrank string - Immutable *SlapImmutable -} - -type SlapImmutable struct { - ID string - Out pb.Message - MildSlap bool - PrettyPrint string - State *pb.Slap_States - Started time.Time - Stopped time.Time - LastUpdate time.Time - LoveRadius *LoveRadius - empty bool -} - -type Goat struct { - Target string - Slaps []Slap - FunnyPrank string - Immutable *GoatImmutable -} - -type GoatImmutable struct { - ID string - State *pb.Goat_States - Started time.Time - Stopped time.Time - LastUpdate time.Time - empty bool -} -type Donkey struct { - Pause bool - Sleep int32 - FunnyPrank string - Immutable *DonkeyImmutable -} - -type DonkeyImmutable struct { - ID string - State *pb.Donkey_States - Started time.Time - Stopped time.Time - LastUpdate time.Time - empty bool -} - -type LoveRadius struct { - Summer *SummerLove - empty bool -} - -type SummerLove struct { - Summary *SummerLoveSummary - empty bool -} - -type SummerLoveSummary struct { - Devices []string - ChangeType []pb.SummerType - empty bool -} - -func (EagleImmutable) Proto() *pb.Eagle { return nil } -func (DreamerImmutable) Proto() *pb.Dreamer { return nil } -func (SlapImmutable) Proto() *pb.Slap { return nil } -func (GoatImmutable) Proto() *pb.Goat { return nil } -func (DonkeyImmutable) Proto() *pb.Donkey { return nil } diff --git a/vendor/github.com/google/go-cmp/cmp/internal/teststructs/project2.go b/vendor/github.com/google/go-cmp/cmp/internal/teststructs/project2.go deleted file mode 100644 index 536592bbe..000000000 --- a/vendor/github.com/google/go-cmp/cmp/internal/teststructs/project2.go +++ /dev/null @@ -1,74 +0,0 @@ -// Copyright 2017, The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE.md file. - -package teststructs - -import ( - "time" - - pb "github.com/google/go-cmp/cmp/internal/testprotos" -) - -// This is an sanitized example of equality from a real use-case. -// The original equality function was as follows: -/* -func equalBatch(b1, b2 *GermBatch) bool { - for _, b := range []*GermBatch{b1, b2} { - for _, l := range b.DirtyGerms { - sort.Slice(l, func(i, j int) bool { return l[i].String() < l[j].String() }) - } - for _, l := range b.CleanGerms { - sort.Slice(l, func(i, j int) bool { return l[i].String() < l[j].String() }) - } - } - if !pb.DeepEqual(b1.DirtyGerms, b2.DirtyGerms) || - !pb.DeepEqual(b1.CleanGerms, b2.CleanGerms) || - !pb.DeepEqual(b1.GermMap, b2.GermMap) { - return false - } - if len(b1.DishMap) != len(b2.DishMap) { - return false - } - for id := range b1.DishMap { - kpb1, err1 := b1.DishMap[id].Proto() - kpb2, err2 := b2.DishMap[id].Proto() - if !pb.Equal(kpb1, kpb2) || !reflect.DeepEqual(err1, err2) { - return false - } - } - return b1.HasPreviousResult == b2.HasPreviousResult && - b1.DirtyID == b2.DirtyID && - b1.CleanID == b2.CleanID && - b1.GermStrain == b2.GermStrain && - b1.TotalDirtyGerms == b2.TotalDirtyGerms && - b1.InfectedAt.Equal(b2.InfectedAt) -} -*/ - -type GermBatch struct { - DirtyGerms, CleanGerms map[int32][]*pb.Germ - GermMap map[int32]*pb.Germ - DishMap map[int32]*Dish - HasPreviousResult bool - DirtyID, CleanID int32 - GermStrain int32 - TotalDirtyGerms int - InfectedAt time.Time -} - -type Dish struct { - pb *pb.Dish - err error -} - -func CreateDish(m *pb.Dish, err error) *Dish { - return &Dish{pb: m, err: err} -} - -func (d *Dish) Proto() (*pb.Dish, error) { - if d.err != nil { - return nil, d.err - } - return d.pb, nil -} diff --git a/vendor/github.com/google/go-cmp/cmp/internal/teststructs/project3.go b/vendor/github.com/google/go-cmp/cmp/internal/teststructs/project3.go deleted file mode 100644 index 957d093c7..000000000 --- a/vendor/github.com/google/go-cmp/cmp/internal/teststructs/project3.go +++ /dev/null @@ -1,82 +0,0 @@ -// Copyright 2017, The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE.md file. - -package teststructs - -import ( - "sync" - - pb "github.com/google/go-cmp/cmp/internal/testprotos" -) - -// This is an sanitized example of equality from a real use-case. -// The original equality function was as follows: -/* -func equalDirt(x, y *Dirt) bool { - if !reflect.DeepEqual(x.table, y.table) || - !reflect.DeepEqual(x.ts, y.ts) || - x.Discord != y.Discord || - !pb.Equal(&x.Proto, &y.Proto) || - len(x.wizard) != len(y.wizard) || - len(x.sadistic) != len(y.sadistic) || - x.lastTime != y.lastTime { - return false - } - for k, vx := range x.wizard { - vy, ok := y.wizard[k] - if !ok || !pb.Equal(vx, vy) { - return false - } - } - for k, vx := range x.sadistic { - vy, ok := y.sadistic[k] - if !ok || !pb.Equal(vx, vy) { - return false - } - } - return true -} -*/ - -type FakeMutex struct { - sync.Locker - x struct{} -} - -type Dirt struct { - table Table // Always concrete type of MockTable - ts Timestamp - Discord DiscordState - Proto pb.Dirt - wizard map[string]*pb.Wizard - sadistic map[string]*pb.Sadistic - lastTime int64 - mu FakeMutex -} - -type DiscordState int - -type Timestamp int64 - -func (d *Dirt) SetTable(t Table) { d.table = t } -func (d *Dirt) SetTimestamp(t Timestamp) { d.ts = t } -func (d *Dirt) SetWizard(m map[string]*pb.Wizard) { d.wizard = m } -func (d *Dirt) SetSadistic(m map[string]*pb.Sadistic) { d.sadistic = m } -func (d *Dirt) SetLastTime(t int64) { d.lastTime = t } - -type Table interface { - Operation1() error - Operation2() error - Operation3() error -} - -type MockTable struct { - state []string -} - -func CreateMockTable(s []string) *MockTable { return &MockTable{s} } -func (mt *MockTable) Operation1() error { return nil } -func (mt *MockTable) Operation2() error { return nil } -func (mt *MockTable) Operation3() error { return nil } -func (mt *MockTable) State() []string { return mt.state } diff --git a/vendor/github.com/google/go-cmp/cmp/internal/teststructs/project4.go b/vendor/github.com/google/go-cmp/cmp/internal/teststructs/project4.go deleted file mode 100644 index 49920f237..000000000 --- a/vendor/github.com/google/go-cmp/cmp/internal/teststructs/project4.go +++ /dev/null @@ -1,142 +0,0 @@ -// Copyright 2017, The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE.md file. - -package teststructs - -import ( - "time" - - pb "github.com/google/go-cmp/cmp/internal/testprotos" -) - -// This is an sanitized example of equality from a real use-case. -// The original equality function was as follows: -/* -func equalCartel(x, y Cartel) bool { - if !(equalHeadquarter(x.Headquarter, y.Headquarter) && - x.Source() == y.Source() && - x.CreationDate().Equal(y.CreationDate()) && - x.Boss() == y.Boss() && - x.LastCrimeDate().Equal(y.LastCrimeDate())) { - return false - } - if len(x.Poisons()) != len(y.Poisons()) { - return false - } - for i := range x.Poisons() { - if !equalPoison(*x.Poisons()[i], *y.Poisons()[i]) { - return false - } - } - return true -} -func equalHeadquarter(x, y Headquarter) bool { - xr, yr := x.Restrictions(), y.Restrictions() - return x.ID() == y.ID() && - x.Location() == y.Location() && - reflect.DeepEqual(x.SubDivisions(), y.SubDivisions()) && - x.IncorporatedDate().Equal(y.IncorporatedDate()) && - pb.Equal(x.MetaData(), y.MetaData()) && - bytes.Equal(x.PrivateMessage(), y.PrivateMessage()) && - bytes.Equal(x.PublicMessage(), y.PublicMessage()) && - x.HorseBack() == y.HorseBack() && - x.Rattle() == y.Rattle() && - x.Convulsion() == y.Convulsion() && - x.Expansion() == y.Expansion() && - x.Status() == y.Status() && - pb.Equal(&xr, &yr) && - x.CreationTime().Equal(y.CreationTime()) -} -func equalPoison(x, y Poison) bool { - return x.PoisonType() == y.PoisonType() && - x.Expiration().Equal(y.Expiration()) && - x.Manufacturer() == y.Manufacturer() && - x.Potency() == y.Potency() -} -*/ - -type Cartel struct { - Headquarter - source string - creationDate time.Time - boss string - lastCrimeDate time.Time - poisons []*Poison -} - -func (p Cartel) Source() string { return p.source } -func (p Cartel) CreationDate() time.Time { return p.creationDate } -func (p Cartel) Boss() string { return p.boss } -func (p Cartel) LastCrimeDate() time.Time { return p.lastCrimeDate } -func (p Cartel) Poisons() []*Poison { return p.poisons } - -func (p *Cartel) SetSource(x string) { p.source = x } -func (p *Cartel) SetCreationDate(x time.Time) { p.creationDate = x } -func (p *Cartel) SetBoss(x string) { p.boss = x } -func (p *Cartel) SetLastCrimeDate(x time.Time) { p.lastCrimeDate = x } -func (p *Cartel) SetPoisons(x []*Poison) { p.poisons = x } - -type Headquarter struct { - id uint64 - location string - subDivisions []string - incorporatedDate time.Time - metaData *pb.MetaData - privateMessage []byte - publicMessage []byte - horseBack string - rattle string - convulsion bool - expansion uint64 - status pb.HoneyStatus - restrictions pb.Restrictions - creationTime time.Time -} - -func (hq Headquarter) ID() uint64 { return hq.id } -func (hq Headquarter) Location() string { return hq.location } -func (hq Headquarter) SubDivisions() []string { return hq.subDivisions } -func (hq Headquarter) IncorporatedDate() time.Time { return hq.incorporatedDate } -func (hq Headquarter) MetaData() *pb.MetaData { return hq.metaData } -func (hq Headquarter) PrivateMessage() []byte { return hq.privateMessage } -func (hq Headquarter) PublicMessage() []byte { return hq.publicMessage } -func (hq Headquarter) HorseBack() string { return hq.horseBack } -func (hq Headquarter) Rattle() string { return hq.rattle } -func (hq Headquarter) Convulsion() bool { return hq.convulsion } -func (hq Headquarter) Expansion() uint64 { return hq.expansion } -func (hq Headquarter) Status() pb.HoneyStatus { return hq.status } -func (hq Headquarter) Restrictions() pb.Restrictions { return hq.restrictions } -func (hq Headquarter) CreationTime() time.Time { return hq.creationTime } - -func (hq *Headquarter) SetID(x uint64) { hq.id = x } -func (hq *Headquarter) SetLocation(x string) { hq.location = x } -func (hq *Headquarter) SetSubDivisions(x []string) { hq.subDivisions = x } -func (hq *Headquarter) SetIncorporatedDate(x time.Time) { hq.incorporatedDate = x } -func (hq *Headquarter) SetMetaData(x *pb.MetaData) { hq.metaData = x } -func (hq *Headquarter) SetPrivateMessage(x []byte) { hq.privateMessage = x } -func (hq *Headquarter) SetPublicMessage(x []byte) { hq.publicMessage = x } -func (hq *Headquarter) SetHorseBack(x string) { hq.horseBack = x } -func (hq *Headquarter) SetRattle(x string) { hq.rattle = x } -func (hq *Headquarter) SetConvulsion(x bool) { hq.convulsion = x } -func (hq *Headquarter) SetExpansion(x uint64) { hq.expansion = x } -func (hq *Headquarter) SetStatus(x pb.HoneyStatus) { hq.status = x } -func (hq *Headquarter) SetRestrictions(x pb.Restrictions) { hq.restrictions = x } -func (hq *Headquarter) SetCreationTime(x time.Time) { hq.creationTime = x } - -type Poison struct { - poisonType pb.PoisonType - expiration time.Time - manufacturer string - potency int -} - -func (p Poison) PoisonType() pb.PoisonType { return p.poisonType } -func (p Poison) Expiration() time.Time { return p.expiration } -func (p Poison) Manufacturer() string { return p.manufacturer } -func (p Poison) Potency() int { return p.potency } - -func (p *Poison) SetPoisonType(x pb.PoisonType) { p.poisonType = x } -func (p *Poison) SetExpiration(x time.Time) { p.expiration = x } -func (p *Poison) SetManufacturer(x string) { p.manufacturer = x } -func (p *Poison) SetPotency(x int) { p.potency = x } diff --git a/vendor/github.com/google/go-cmp/cmp/internal/teststructs/structs.go b/vendor/github.com/google/go-cmp/cmp/internal/teststructs/structs.go deleted file mode 100644 index 6b4d2a725..000000000 --- a/vendor/github.com/google/go-cmp/cmp/internal/teststructs/structs.go +++ /dev/null @@ -1,197 +0,0 @@ -// Copyright 2017, The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE.md file. - -package teststructs - -type InterfaceA interface { - InterfaceA() -} - -type ( - StructA struct{ X string } // Equal method on value receiver - StructB struct{ X string } // Equal method on pointer receiver - StructC struct{ X string } // Equal method (with interface argument) on value receiver - StructD struct{ X string } // Equal method (with interface argument) on pointer receiver - StructE struct{ X string } // Equal method (with interface argument on value receiver) on pointer receiver - StructF struct{ X string } // Equal method (with interface argument on pointer receiver) on value receiver - - // These embed the above types as a value. - StructA1 struct { - StructA - X string - } - StructB1 struct { - StructB - X string - } - StructC1 struct { - StructC - X string - } - StructD1 struct { - StructD - X string - } - StructE1 struct { - StructE - X string - } - StructF1 struct { - StructF - X string - } - - // These embed the above types as a pointer. - StructA2 struct { - *StructA - X string - } - StructB2 struct { - *StructB - X string - } - StructC2 struct { - *StructC - X string - } - StructD2 struct { - *StructD - X string - } - StructE2 struct { - *StructE - X string - } - StructF2 struct { - *StructF - X string - } - - StructNo struct{ X string } // Equal method (with interface argument) on non-satisfying receiver - - AssignA func() int - AssignB struct{ A int } - AssignC chan bool - AssignD <-chan bool -) - -func (x StructA) Equal(y StructA) bool { return true } -func (x *StructB) Equal(y *StructB) bool { return true } -func (x StructC) Equal(y InterfaceA) bool { return true } -func (x StructC) InterfaceA() {} -func (x *StructD) Equal(y InterfaceA) bool { return true } -func (x *StructD) InterfaceA() {} -func (x *StructE) Equal(y InterfaceA) bool { return true } -func (x StructE) InterfaceA() {} -func (x StructF) Equal(y InterfaceA) bool { return true } -func (x *StructF) InterfaceA() {} -func (x StructNo) Equal(y InterfaceA) bool { return true } - -func (x AssignA) Equal(y func() int) bool { return true } -func (x AssignB) Equal(y struct{ A int }) bool { return true } -func (x AssignC) Equal(y chan bool) bool { return true } -func (x AssignD) Equal(y <-chan bool) bool { return true } - -var _ = func( - a StructA, b StructB, c StructC, d StructD, e StructE, f StructF, - ap *StructA, bp *StructB, cp *StructC, dp *StructD, ep *StructE, fp *StructF, - a1 StructA1, b1 StructB1, c1 StructC1, d1 StructD1, e1 StructE1, f1 StructF1, - a2 StructA2, b2 StructB2, c2 StructC2, d2 StructD2, e2 StructE2, f2 StructF1, -) { - a.Equal(a) - b.Equal(&b) - c.Equal(c) - d.Equal(&d) - e.Equal(e) - f.Equal(&f) - - ap.Equal(*ap) - bp.Equal(bp) - cp.Equal(*cp) - dp.Equal(dp) - ep.Equal(*ep) - fp.Equal(fp) - - a1.Equal(a1.StructA) - b1.Equal(&b1.StructB) - c1.Equal(c1) - d1.Equal(&d1) - e1.Equal(e1) - f1.Equal(&f1) - - a2.Equal(*a2.StructA) - b2.Equal(b2.StructB) - c2.Equal(c2) - d2.Equal(&d2) - e2.Equal(e2) - f2.Equal(&f2) -} - -type ( - privateStruct struct{ Public, private int } - PublicStruct struct{ Public, private int } - ParentStructA struct{ privateStruct } - ParentStructB struct{ PublicStruct } - ParentStructC struct { - privateStruct - Public, private int - } - ParentStructD struct { - PublicStruct - Public, private int - } - ParentStructE struct { - privateStruct - PublicStruct - } - ParentStructF struct { - privateStruct - PublicStruct - Public, private int - } - ParentStructG struct { - *privateStruct - } - ParentStructH struct { - *PublicStruct - } - ParentStructI struct { - *privateStruct - *PublicStruct - } - ParentStructJ struct { - *privateStruct - *PublicStruct - Public PublicStruct - private privateStruct - } -) - -func NewParentStructG() *ParentStructG { - return &ParentStructG{new(privateStruct)} -} -func NewParentStructH() *ParentStructH { - return &ParentStructH{new(PublicStruct)} -} -func NewParentStructI() *ParentStructI { - return &ParentStructI{new(privateStruct), new(PublicStruct)} -} -func NewParentStructJ() *ParentStructJ { - return &ParentStructJ{ - privateStruct: new(privateStruct), PublicStruct: new(PublicStruct), - } -} -func (s *privateStruct) SetPrivate(i int) { s.private = i } -func (s *PublicStruct) SetPrivate(i int) { s.private = i } -func (s *ParentStructC) SetPrivate(i int) { s.private = i } -func (s *ParentStructD) SetPrivate(i int) { s.private = i } -func (s *ParentStructF) SetPrivate(i int) { s.private = i } -func (s *ParentStructA) PrivateStruct() *privateStruct { return &s.privateStruct } -func (s *ParentStructC) PrivateStruct() *privateStruct { return &s.privateStruct } -func (s *ParentStructE) PrivateStruct() *privateStruct { return &s.privateStruct } -func (s *ParentStructF) PrivateStruct() *privateStruct { return &s.privateStruct } -func (s *ParentStructG) PrivateStruct() *privateStruct { return s.privateStruct } -func (s *ParentStructI) PrivateStruct() *privateStruct { return s.privateStruct } -func (s *ParentStructJ) PrivateStruct() *privateStruct { return s.privateStruct } -func (s *ParentStructJ) Private() *privateStruct { return &s.private } diff --git a/vendor/github.com/google/go-cmp/cmp/internal/value/sort.go b/vendor/github.com/google/go-cmp/cmp/internal/value/sort.go index 938f646f0..24fbae6e3 100644 --- a/vendor/github.com/google/go-cmp/cmp/internal/value/sort.go +++ b/vendor/github.com/google/go-cmp/cmp/internal/value/sort.go @@ -19,7 +19,7 @@ func SortKeys(vs []reflect.Value) []reflect.Value { } // Sort the map keys. - sort.Slice(vs, func(i, j int) bool { return isLess(vs[i], vs[j]) }) + sort.SliceStable(vs, func(i, j int) bool { return isLess(vs[i], vs[j]) }) // Deduplicate keys (fails for NaNs). vs2 := vs[:1] @@ -42,6 +42,8 @@ func isLess(x, y reflect.Value) bool { case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr: return x.Uint() < y.Uint() case reflect.Float32, reflect.Float64: + // NOTE: This does not sort -0 as less than +0 + // since Go maps treat -0 and +0 as equal keys. fx, fy := x.Float(), y.Float() return fx < fy || math.IsNaN(fx) && !math.IsNaN(fy) case reflect.Complex64, reflect.Complex128: diff --git a/vendor/github.com/google/go-cmp/cmp/internal/value/zero.go b/vendor/github.com/google/go-cmp/cmp/internal/value/zero.go index d13a12ccf..06a8ffd03 100644 --- a/vendor/github.com/google/go-cmp/cmp/internal/value/zero.go +++ b/vendor/github.com/google/go-cmp/cmp/internal/value/zero.go @@ -4,7 +4,10 @@ package value -import "reflect" +import ( + "math" + "reflect" +) // IsZero reports whether v is the zero value. // This does not rely on Interface and so can be used on unexported fields. @@ -17,9 +20,9 @@ func IsZero(v reflect.Value) bool { case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr: return v.Uint() == 0 case reflect.Float32, reflect.Float64: - return v.Float() == 0 + return math.Float64bits(v.Float()) == 0 case reflect.Complex64, reflect.Complex128: - return v.Complex() == 0 + return math.Float64bits(real(v.Complex())) == 0 && math.Float64bits(imag(v.Complex())) == 0 case reflect.String: return v.String() == "" case reflect.UnsafePointer: diff --git a/vendor/github.com/google/go-cmp/cmp/options.go b/vendor/github.com/google/go-cmp/cmp/options.go index 793448160..abbd2a63b 100644 --- a/vendor/github.com/google/go-cmp/cmp/options.go +++ b/vendor/github.com/google/go-cmp/cmp/options.go @@ -225,8 +225,20 @@ func (validator) apply(s *state, vx, vy reflect.Value) { // Unable to Interface implies unexported field without visibility access. if !vx.CanInterface() || !vy.CanInterface() { - const help = "consider using a custom Comparer; if you control the implementation of type, you can also consider AllowUnexported or cmpopts.IgnoreUnexported" - panic(fmt.Sprintf("cannot handle unexported field: %#v\n%s", s.curPath, help)) + const help = "consider using a custom Comparer; if you control the implementation of type, you can also consider using an Exporter, AllowUnexported, or cmpopts.IgnoreUnexported" + var name string + if t := s.curPath.Index(-2).Type(); t.Name() != "" { + // Named type with unexported fields. + name = fmt.Sprintf("%q.%v", t.PkgPath(), t.Name()) // e.g., "path/to/package".MyType + } else { + // Unnamed type with unexported fields. Derive PkgPath from field. + var pkgPath string + for i := 0; i < t.NumField() && pkgPath == ""; i++ { + pkgPath = t.Field(i).PkgPath + } + name = fmt.Sprintf("%q.(%v)", pkgPath, t.String()) // e.g., "path/to/package".(struct { a int }) + } + panic(fmt.Sprintf("cannot handle unexported field at %#v:\n\t%v\n%s", s.curPath, name, help)) } panic("not reachable") @@ -360,9 +372,8 @@ func (cm comparer) String() string { return fmt.Sprintf("Comparer(%s)", function.NameOf(cm.fnc)) } -// AllowUnexported returns an Option that forcibly allows operations on -// unexported fields in certain structs, which are specified by passing in a -// value of each struct type. +// Exporter returns an Option that specifies whether Equal is allowed to +// introspect into the unexported fields of certain struct types. // // Users of this option must understand that comparing on unexported fields // from external packages is not safe since changes in the internal @@ -386,10 +397,24 @@ func (cm comparer) String() string { // // In other cases, the cmpopts.IgnoreUnexported option can be used to ignore // all unexported fields on specified struct types. -func AllowUnexported(types ...interface{}) Option { - if !supportAllowUnexported { - panic("AllowUnexported is not supported on purego builds, Google App Engine Standard, or GopherJS") +func Exporter(f func(reflect.Type) bool) Option { + if !supportExporters { + panic("Exporter is not supported on purego builds") } + return exporter(f) +} + +type exporter func(reflect.Type) bool + +func (exporter) filter(_ *state, _ reflect.Type, _, _ reflect.Value) applicableOption { + panic("not implemented") +} + +// AllowUnexported returns an Options that allows Equal to forcibly introspect +// unexported fields of the specified struct types. +// +// See Exporter for the proper use of this option. +func AllowUnexported(types ...interface{}) Option { m := make(map[reflect.Type]bool) for _, typ := range types { t := reflect.TypeOf(typ) @@ -398,13 +423,7 @@ func AllowUnexported(types ...interface{}) Option { } m[t] = true } - return visibleStructs(m) -} - -type visibleStructs map[reflect.Type]bool - -func (visibleStructs) filter(_ *state, _ reflect.Type, _, _ reflect.Value) applicableOption { - panic("not implemented") + return exporter(func(t reflect.Type) bool { return m[t] }) } // Result represents the comparison result for a single node and @@ -436,6 +455,11 @@ func (r Result) ByFunc() bool { return r.flags&reportByFunc != 0 } +// ByCycle reports whether a reference cycle was detected. +func (r Result) ByCycle() bool { + return r.flags&reportByCycle != 0 +} + type resultFlags uint const ( @@ -446,6 +470,7 @@ const ( reportByIgnore reportByMethod reportByFunc + reportByCycle ) // Reporter is an Option that can be passed to Equal. When Equal traverses diff --git a/vendor/github.com/google/go-cmp/cmp/path.go b/vendor/github.com/google/go-cmp/cmp/path.go index 96fffd291..509d6b852 100644 --- a/vendor/github.com/google/go-cmp/cmp/path.go +++ b/vendor/github.com/google/go-cmp/cmp/path.go @@ -10,6 +10,8 @@ import ( "strings" "unicode" "unicode/utf8" + + "github.com/google/go-cmp/cmp/internal/value" ) // Path is a list of PathSteps describing the sequence of operations to get @@ -41,7 +43,7 @@ type PathStep interface { // In some cases, one or both may be invalid or have restrictions: // • For StructField, both are not interface-able if the current field // is unexported and the struct type is not explicitly permitted by - // AllowUnexported to traverse unexported fields. + // an Exporter to traverse unexported fields. // • For SliceIndex, one may be invalid if an element is missing from // either the x or y slice. // • For MapIndex, one may be invalid if an entry is missing from @@ -207,6 +209,7 @@ type SliceIndex struct{ *sliceIndex } type sliceIndex struct { pathStep xkey, ykey int + isSlice bool // False for reflect.Array } func (si SliceIndex) Type() reflect.Type { return si.typ } @@ -301,6 +304,72 @@ func (tf Transform) Func() reflect.Value { return tf.trans.fnc } // The == operator can be used to detect the exact option used. func (tf Transform) Option() Option { return tf.trans } +// pointerPath represents a dual-stack of pointers encountered when +// recursively traversing the x and y values. This data structure supports +// detection of cycles and determining whether the cycles are equal. +// In Go, cycles can occur via pointers, slices, and maps. +// +// The pointerPath uses a map to represent a stack; where descension into a +// pointer pushes the address onto the stack, and ascension from a pointer +// pops the address from the stack. Thus, when traversing into a pointer from +// reflect.Ptr, reflect.Slice element, or reflect.Map, we can detect cycles +// by checking whether the pointer has already been visited. The cycle detection +// uses a seperate stack for the x and y values. +// +// If a cycle is detected we need to determine whether the two pointers +// should be considered equal. The definition of equality chosen by Equal +// requires two graphs to have the same structure. To determine this, both the +// x and y values must have a cycle where the previous pointers were also +// encountered together as a pair. +// +// Semantically, this is equivalent to augmenting Indirect, SliceIndex, and +// MapIndex with pointer information for the x and y values. +// Suppose px and py are two pointers to compare, we then search the +// Path for whether px was ever encountered in the Path history of x, and +// similarly so with py. If either side has a cycle, the comparison is only +// equal if both px and py have a cycle resulting from the same PathStep. +// +// Using a map as a stack is more performant as we can perform cycle detection +// in O(1) instead of O(N) where N is len(Path). +type pointerPath struct { + // mx is keyed by x pointers, where the value is the associated y pointer. + mx map[value.Pointer]value.Pointer + // my is keyed by y pointers, where the value is the associated x pointer. + my map[value.Pointer]value.Pointer +} + +func (p *pointerPath) Init() { + p.mx = make(map[value.Pointer]value.Pointer) + p.my = make(map[value.Pointer]value.Pointer) +} + +// Push indicates intent to descend into pointers vx and vy where +// visited reports whether either has been seen before. If visited before, +// equal reports whether both pointers were encountered together. +// Pop must be called if and only if the pointers were never visited. +// +// The pointers vx and vy must be a reflect.Ptr, reflect.Slice, or reflect.Map +// and be non-nil. +func (p pointerPath) Push(vx, vy reflect.Value) (equal, visited bool) { + px := value.PointerOf(vx) + py := value.PointerOf(vy) + _, ok1 := p.mx[px] + _, ok2 := p.my[py] + if ok1 || ok2 { + equal = p.mx[px] == py && p.my[py] == px // Pointers paired together + return equal, true + } + p.mx[px] = py + p.my[py] = px + return false, false +} + +// Pop ascends from pointers vx and vy. +func (p pointerPath) Pop(vx, vy reflect.Value) { + delete(p.mx, value.PointerOf(vx)) + delete(p.my, value.PointerOf(vy)) +} + // isExported reports whether the identifier is exported. func isExported(id string) bool { r, _ := utf8.DecodeRuneInString(id) diff --git a/vendor/github.com/google/go-cmp/cmp/report_compare.go b/vendor/github.com/google/go-cmp/cmp/report_compare.go index 05efb992c..17a05eede 100644 --- a/vendor/github.com/google/go-cmp/cmp/report_compare.go +++ b/vendor/github.com/google/go-cmp/cmp/report_compare.go @@ -168,7 +168,7 @@ func (opts formatOptions) formatDiffList(recs []reportRecord, k reflect.Kind) te var isZero bool switch opts.DiffMode { case diffIdentical: - isZero = value.IsZero(r.Value.ValueX) || value.IsZero(r.Value.ValueX) + isZero = value.IsZero(r.Value.ValueX) || value.IsZero(r.Value.ValueY) case diffRemoved: isZero = value.IsZero(r.Value.ValueX) case diffInserted: diff --git a/vendor/github.com/google/go-cmp/cmp/report_reflect.go b/vendor/github.com/google/go-cmp/cmp/report_reflect.go index 5521c604c..2761b6289 100644 --- a/vendor/github.com/google/go-cmp/cmp/report_reflect.go +++ b/vendor/github.com/google/go-cmp/cmp/report_reflect.go @@ -208,7 +208,6 @@ func (opts formatOptions) FormatValue(v reflect.Value, m visitedPointers) (out t func formatMapKey(v reflect.Value) string { var opts formatOptions opts.TypeMode = elideType - opts.AvoidStringer = true opts.ShallowPointers = true s := opts.FormatValue(v, visitedPointers{}).String() return strings.TrimSpace(s) diff --git a/vendor/github.com/google/go-cmp/cmp/report_slices.go b/vendor/github.com/google/go-cmp/cmp/report_slices.go index 8cb3265e7..eafcf2e4c 100644 --- a/vendor/github.com/google/go-cmp/cmp/report_slices.go +++ b/vendor/github.com/google/go-cmp/cmp/report_slices.go @@ -90,7 +90,7 @@ func (opts formatOptions) FormatDiffSlice(v *valueNode) textNode { } if r == '\n' { if maxLineLen < i-lastLineIdx { - lastLineIdx = i - lastLineIdx + maxLineLen = i - lastLineIdx } lastLineIdx = i + 1 numLines++ @@ -322,7 +322,7 @@ func coalesceInterveningIdentical(groups []diffStats, windowSize int) []diffStat hadX, hadY := prev.NumRemoved > 0, prev.NumInserted > 0 hasX, hasY := next.NumRemoved > 0, next.NumInserted > 0 if ((hadX || hasX) && (hadY || hasY)) && curr.NumIdentical <= windowSize { - *prev = (*prev).Append(*curr).Append(*next) + *prev = prev.Append(*curr).Append(*next) groups = groups[:len(groups)-1] // Truncate off equal group continue } diff --git a/vendor/github.com/google/go-cmp/cmp/report_text.go b/vendor/github.com/google/go-cmp/cmp/report_text.go index 80605d0e4..8b8fcab7b 100644 --- a/vendor/github.com/google/go-cmp/cmp/report_text.go +++ b/vendor/github.com/google/go-cmp/cmp/report_text.go @@ -19,6 +19,11 @@ var randBool = rand.New(rand.NewSource(time.Now().Unix())).Intn(2) == 0 type indentMode int func (n indentMode) appendIndent(b []byte, d diffMode) []byte { + // The output of Diff is documented as being unstable to provide future + // flexibility in changing the output for more humanly readable reports. + // This logic intentionally introduces instability to the exact output + // so that users can detect accidental reliance on stability early on, + // rather than much later when an actual change to the format occurs. if flags.Deterministic || randBool { // Use regular spaces (U+0020). switch d { @@ -360,7 +365,7 @@ func (s diffStats) String() string { // Pluralize the name (adjusting for some obscure English grammar rules). name := s.Name if sum > 1 { - name = name + "s" + name += "s" if strings.HasSuffix(name, "ys") { name = name[:len(name)-2] + "ies" // e.g., "entrys" => "entries" } diff --git a/vendor/github.com/googleapis/gax-go/.gitignore b/vendor/github.com/googleapis/gax-go/.gitignore deleted file mode 100644 index 289bf1eb7..000000000 --- a/vendor/github.com/googleapis/gax-go/.gitignore +++ /dev/null @@ -1 +0,0 @@ -*.cover diff --git a/vendor/github.com/googleapis/gax-go/CODE_OF_CONDUCT.md b/vendor/github.com/googleapis/gax-go/CODE_OF_CONDUCT.md deleted file mode 100644 index 46b2a08ea..000000000 --- a/vendor/github.com/googleapis/gax-go/CODE_OF_CONDUCT.md +++ /dev/null @@ -1,43 +0,0 @@ -# Contributor Code of Conduct - -As contributors and maintainers of this project, -and in the interest of fostering an open and welcoming community, -we pledge to respect all people who contribute through reporting issues, -posting feature requests, updating documentation, -submitting pull requests or patches, and other activities. - -We are committed to making participation in this project -a harassment-free experience for everyone, -regardless of level of experience, gender, gender identity and expression, -sexual orientation, disability, personal appearance, -body size, race, ethnicity, age, religion, or nationality. - -Examples of unacceptable behavior by participants include: - -* The use of sexualized language or imagery -* Personal attacks -* Trolling or insulting/derogatory comments -* Public or private harassment -* Publishing other's private information, -such as physical or electronic -addresses, without explicit permission -* Other unethical or unprofessional conduct. - -Project maintainers have the right and responsibility to remove, edit, or reject -comments, commits, code, wiki edits, issues, and other contributions -that are not aligned to this Code of Conduct. -By adopting this Code of Conduct, -project maintainers commit themselves to fairly and consistently -applying these principles to every aspect of managing this project. -Project maintainers who do not follow or enforce the Code of Conduct -may be permanently removed from the project team. - -This code of conduct applies both within project spaces and in public spaces -when an individual is representing the project or its community. - -Instances of abusive, harassing, or otherwise unacceptable behavior -may be reported by opening an issue -or contacting one or more of the project maintainers. - -This Code of Conduct is adapted from the [Contributor Covenant](http://contributor-covenant.org), version 1.2.0, -available at [http://contributor-covenant.org/version/1/2/0/](http://contributor-covenant.org/version/1/2/0/) diff --git a/vendor/github.com/googleapis/gax-go/CONTRIBUTING.md b/vendor/github.com/googleapis/gax-go/CONTRIBUTING.md deleted file mode 100644 index b0404fb64..000000000 --- a/vendor/github.com/googleapis/gax-go/CONTRIBUTING.md +++ /dev/null @@ -1,32 +0,0 @@ -Want to contribute? Great! First, read this page (including the small print at the end). - -### Before you contribute -Before we can use your code, you must sign the -[Google Individual Contributor License Agreement] -(https://cla.developers.google.com/about/google-individual) -(CLA), which you can do online. The CLA is necessary mainly because you own the -copyright to your changes, even after your contribution becomes part of our -codebase, so we need your permission to use and distribute your code. We also -need to be sure of various other things—for instance that you'll tell us if you -know that your code infringes on other people's patents. You don't have to sign -the CLA until after you've submitted your code for review and a member has -approved it, but you must do it before we can put your code into our codebase. -Before you start working on a larger contribution, you should get in touch with -us first through the issue tracker with your idea so that we can help out and -possibly guide you. Coordinating up front makes it much easier to avoid -frustration later on. - -### Code reviews -All submissions, including submissions by project members, require review. We -use Github pull requests for this purpose. - -### Breaking code changes -When a breaking change is added, CI/CD will fail. If the change is expected, -add a BREAKING_CHANGE_ACCEPTABLE= line to the CL description. This will -cause CI/CD to skip checking breaking changes. - -### The small print -Contributions made by corporations are covered by a different agreement than -the one above, the -[Software Grant and Corporate Contributor License Agreement] -(https://cla.developers.google.com/about/google-corporate). diff --git a/vendor/github.com/googleapis/gax-go/LICENSE b/vendor/github.com/googleapis/gax-go/LICENSE deleted file mode 100644 index 6d16b6578..000000000 --- a/vendor/github.com/googleapis/gax-go/LICENSE +++ /dev/null @@ -1,27 +0,0 @@ -Copyright 2016, Google Inc. -All rights reserved. -Redistribution and use in source and binary forms, with or without -modification, are permitted provided that the following conditions are -met: - - * Redistributions of source code must retain the above copyright -notice, this list of conditions and the following disclaimer. - * Redistributions in binary form must reproduce the above -copyright notice, this list of conditions and the following disclaimer -in the documentation and/or other materials provided with the -distribution. - * Neither the name of Google Inc. nor the names of its -contributors may be used to endorse or promote products derived from -this software without specific prior written permission. - -THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. diff --git a/vendor/github.com/googleapis/gax-go/README.md b/vendor/github.com/googleapis/gax-go/README.md deleted file mode 100644 index aae170fb6..000000000 --- a/vendor/github.com/googleapis/gax-go/README.md +++ /dev/null @@ -1,27 +0,0 @@ -Google API Extensions for Go -============================ - -[![GoDoc](https://godoc.org/github.com/googleapis/gax-go?status.svg)](https://godoc.org/github.com/googleapis/gax-go) - -Google API Extensions for Go (gax-go) is a set of modules which aids the -development of APIs for clients and servers based on `gRPC` and Google API -conventions. - -To install the API extensions, use: - -``` -go get -u github.com/googleapis/gax-go/v2 -``` - -**Note:** Application code will rarely need to use this library directly, -but the code generated automatically from API definition files can use it -to simplify code generation and to provide more convenient and idiomatic API surface. - -Go Versions -=========== -This library requires Go 1.6 or above. - -License -======= -BSD - please see [LICENSE](https://github.com/googleapis/gax-go/blob/master/LICENSE) -for more information. diff --git a/vendor/github.com/googleapis/gax-go/RELEASING.md b/vendor/github.com/googleapis/gax-go/RELEASING.md deleted file mode 100644 index 0557654b2..000000000 --- a/vendor/github.com/googleapis/gax-go/RELEASING.md +++ /dev/null @@ -1,30 +0,0 @@ -# How to release v1 - -1. Determine the current release version with `git tag -l`. It should look - something like `vX.Y.Z`. We'll call the current version `$CV` and the new - version `$NV`. -1. On master, run `git log $CV..` to list all the changes since the last - release. - a. NOTE: Some commits may pertain to only v1 or v2. Manually introspect - each commit to figure which occurred in v1. -1. Edit `CHANGES.md` to include a summary of the changes. -1. Mail the CL containing the `CHANGES.md` changes. When the CL is approved, - submit it. -1. Without submitting any other CLs: - a. Switch to master. - b. `git pull` - c. Tag the repo with the next version: `git tag $NV`. It should be of the - form `v1.Y.Z`. - d. Push the tag: `git push origin $NV`. -1. Update [the releases page](https://github.com/googleapis/google-cloud-go/releases) - with the new release, copying the contents of the CHANGES.md. - -# How to release v2 - -Same process as v1, once again noting that the commit list may include v1 -commits (which should be pruned out). Note also whilst v1 tags are `v1.Y.Z`, v2 -tags are `v2.Y.Z`. - -# On releasing multiple major versions - -Please see https://github.com/golang/go/wiki/Modules#releasing-modules-v2-or-higher. diff --git a/vendor/github.com/googleapis/gax-go/call_option.go b/vendor/github.com/googleapis/gax-go/call_option.go deleted file mode 100644 index 5bd48972b..000000000 --- a/vendor/github.com/googleapis/gax-go/call_option.go +++ /dev/null @@ -1,71 +0,0 @@ -// Copyright 2016, Google Inc. -// All rights reserved. -// -// Redistribution and use in source and binary forms, with or without -// modification, are permitted provided that the following conditions are -// met: -// -// * Redistributions of source code must retain the above copyright -// notice, this list of conditions and the following disclaimer. -// * Redistributions in binary form must reproduce the above -// copyright notice, this list of conditions and the following disclaimer -// in the documentation and/or other materials provided with the -// distribution. -// * Neither the name of Google Inc. nor the names of its -// contributors may be used to endorse or promote products derived from -// this software without specific prior written permission. -// -// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - -package gax - -import ( - v2 "github.com/googleapis/gax-go/v2" - "google.golang.org/grpc" - "google.golang.org/grpc/codes" -) - -// CallOption is an option used by Invoke to control behaviors of RPC calls. -// CallOption works by modifying relevant fields of CallSettings. -type CallOption = v2.CallOption - -// Retryer is used by Invoke to determine retry behavior. -type Retryer = v2.Retryer - -// WithRetry sets CallSettings.Retry to fn. -func WithRetry(fn func() Retryer) CallOption { - return v2.WithRetry(fn) -} - -// OnCodes returns a Retryer that retries if and only if -// the previous attempt returns a GRPC error whose error code is stored in cc. -// Pause times between retries are specified by bo. -// -// bo is only used for its parameters; each Retryer has its own copy. -func OnCodes(cc []codes.Code, bo Backoff) Retryer { - return v2.OnCodes(cc, bo) -} - -// Backoff implements exponential backoff. -// The wait time between retries is a random value between 0 and the "retry envelope". -// The envelope starts at Initial and increases by the factor of Multiplier every retry, -// but is capped at Max. -type Backoff = v2.Backoff - -// WithGRPCOptions allows passing gRPC call options during client creation. -func WithGRPCOptions(opt ...grpc.CallOption) CallOption { - return v2.WithGRPCOptions(opt...) -} - -// CallSettings allow fine-grained control over how calls are made. -type CallSettings = v2.CallSettings diff --git a/vendor/github.com/googleapis/gax-go/gax.go b/vendor/github.com/googleapis/gax-go/gax.go deleted file mode 100644 index 006739804..000000000 --- a/vendor/github.com/googleapis/gax-go/gax.go +++ /dev/null @@ -1,39 +0,0 @@ -// Copyright 2016, Google Inc. -// All rights reserved. -// -// Redistribution and use in source and binary forms, with or without -// modification, are permitted provided that the following conditions are -// met: -// -// * Redistributions of source code must retain the above copyright -// notice, this list of conditions and the following disclaimer. -// * Redistributions in binary form must reproduce the above -// copyright notice, this list of conditions and the following disclaimer -// in the documentation and/or other materials provided with the -// distribution. -// * Neither the name of Google Inc. nor the names of its -// contributors may be used to endorse or promote products derived from -// this software without specific prior written permission. -// -// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - -// Package gax contains a set of modules which aid the development of APIs -// for clients and servers based on gRPC and Google API conventions. -// -// Application code will rarely need to use this library directly. -// However, code generated automatically from API definition files can use it -// to simplify code generation and to provide more convenient and idiomatic API surfaces. -package gax - -// Version specifies the gax version. -const Version = "1.0.1" diff --git a/vendor/github.com/googleapis/gax-go/go.mod b/vendor/github.com/googleapis/gax-go/go.mod deleted file mode 100644 index 8b088e52b..000000000 --- a/vendor/github.com/googleapis/gax-go/go.mod +++ /dev/null @@ -1,13 +0,0 @@ -module github.com/googleapis/gax-go - -go 1.11 - -require ( - github.com/golang/protobuf v1.3.1 - github.com/googleapis/gax-go/v2 v2.0.5 - golang.org/x/exp v0.0.0-20190221220918-438050ddec5e - golang.org/x/lint v0.0.0-20181026193005-c67002cb31c3 - golang.org/x/tools v0.0.0-20190114222345-bf090417da8b - google.golang.org/grpc v1.19.0 - honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099 -) diff --git a/vendor/github.com/googleapis/gax-go/go.sum b/vendor/github.com/googleapis/gax-go/go.sum deleted file mode 100644 index 8fd8a46c1..000000000 --- a/vendor/github.com/googleapis/gax-go/go.sum +++ /dev/null @@ -1,35 +0,0 @@ -cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw= -github.com/BurntSushi/toml v0.3.1 h1:WXkYYl6Yr3qBf1K79EBnL4mak0OimBfB0XUf9Vl28OQ= -github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU= -github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw= -github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b h1:VKtxabqXZkF25pY9ekfRL6a582T4P37/31XEstQ5p58= -github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q= -github.com/golang/mock v1.1.1/go.mod h1:oTYuIxOrZwtPieC+H1uAHpcLFnEyAGVDL/k47Jfbm0A= -github.com/golang/protobuf v1.2.0 h1:P3YflyNX/ehuJFLhxviNdFxQPkGK5cDcApsge1SqnvM= -github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U= -github.com/golang/protobuf v1.3.1 h1:YF8+flBXS5eO826T4nzqPrxfhQThhXl0YzfuUPu4SBg= -github.com/golang/protobuf v1.3.1/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U= -github.com/googleapis/gax-go/v2 v2.0.5 h1:sjZBwGj9Jlw33ImPtvFviGYvseOtDM7hkSKB7+Tv3SM= -github.com/googleapis/gax-go/v2 v2.0.5/go.mod h1:DWXyrwAJ9X0FpwwEdw+IPEYBICEFu5mhpdKc/us6bOk= -golang.org/x/exp v0.0.0-20190221220918-438050ddec5e h1:dVreTP5bOOWt5GFwwvgTE2iU0TkIqi2x3r0b8qGlp6k= -golang.org/x/exp v0.0.0-20190221220918-438050ddec5e/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA= -golang.org/x/lint v0.0.0-20181026193005-c67002cb31c3 h1:x/bBzNauLQAlE3fLku/xy92Y8QwKX5HZymrMz2IiKFc= -golang.org/x/lint v0.0.0-20181026193005-c67002cb31c3/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE= -golang.org/x/net v0.0.0-20180826012351-8a410e7b638d h1:g9qWBGx4puODJTMVyoPrpoxPFgVGd+z1DZwjfRu4d0I= -golang.org/x/net v0.0.0-20180826012351-8a410e7b638d/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4= -golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U= -golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f h1:wMNYb4v58l5UBM7MYRLPG6ZhfOqbKu7X5eyFl8ZhKvA= -golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= -golang.org/x/sys v0.0.0-20180830151530-49385e6e1522 h1:Ve1ORMCxvRmSXBwJK+t3Oy+V2vRW2OetUQBq4rJIkZE= -golang.org/x/sys v0.0.0-20180830151530-49385e6e1522/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY= -golang.org/x/text v0.3.0 h1:g61tztE5qeGQ89tm6NTjjM9VPIm088od1l6aSorWRWg= -golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ= -golang.org/x/tools v0.0.0-20190114222345-bf090417da8b h1:qMK98NmNCRVDIYFycQ5yVRkvgDUFfdP8Ip4KqmDEB7g= -golang.org/x/tools v0.0.0-20190114222345-bf090417da8b/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ= -google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM= -google.golang.org/genproto v0.0.0-20180817151627-c66870c02cf8 h1:Nw54tB0rB7hY/N0NQvRW8DG4Yk3Q6T9cu9RcFQDu1tc= -google.golang.org/genproto v0.0.0-20180817151627-c66870c02cf8/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc= -google.golang.org/grpc v1.19.0 h1:cfg4PD8YEdSFnm7qLV4++93WcmhH2nIUhMjhdCvl3j8= -google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c= -honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099 h1:XJP7lxbSxWLOMNdBE4B/STaqVy6L73o0knwj2vIlxnw= -honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4= diff --git a/vendor/github.com/googleapis/gax-go/header.go b/vendor/github.com/googleapis/gax-go/header.go deleted file mode 100644 index e1a0af1ba..000000000 --- a/vendor/github.com/googleapis/gax-go/header.go +++ /dev/null @@ -1,40 +0,0 @@ -// Copyright 2018, Google Inc. -// All rights reserved. -// -// Redistribution and use in source and binary forms, with or without -// modification, are permitted provided that the following conditions are -// met: -// -// * Redistributions of source code must retain the above copyright -// notice, this list of conditions and the following disclaimer. -// * Redistributions in binary form must reproduce the above -// copyright notice, this list of conditions and the following disclaimer -// in the documentation and/or other materials provided with the -// distribution. -// * Neither the name of Google Inc. nor the names of its -// contributors may be used to endorse or promote products derived from -// this software without specific prior written permission. -// -// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - -package gax - -import v2 "github.com/googleapis/gax-go/v2" - -// XGoogHeader is for use by the Google Cloud Libraries only. -// -// XGoogHeader formats key-value pairs. -// The resulting string is suitable for x-goog-api-client header. -func XGoogHeader(keyval ...string) string { - return v2.XGoogHeader(keyval...) -} diff --git a/vendor/github.com/googleapis/gax-go/invoke.go b/vendor/github.com/googleapis/gax-go/invoke.go deleted file mode 100644 index 6422d3f73..000000000 --- a/vendor/github.com/googleapis/gax-go/invoke.go +++ /dev/null @@ -1,52 +0,0 @@ -// Copyright 2016, Google Inc. -// All rights reserved. -// -// Redistribution and use in source and binary forms, with or without -// modification, are permitted provided that the following conditions are -// met: -// -// * Redistributions of source code must retain the above copyright -// notice, this list of conditions and the following disclaimer. -// * Redistributions in binary form must reproduce the above -// copyright notice, this list of conditions and the following disclaimer -// in the documentation and/or other materials provided with the -// distribution. -// * Neither the name of Google Inc. nor the names of its -// contributors may be used to endorse or promote products derived from -// this software without specific prior written permission. -// -// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - -package gax - -import ( - "context" - "time" - - v2 "github.com/googleapis/gax-go/v2" -) - -// APICall is a user defined call stub. -type APICall = v2.APICall - -// Invoke calls the given APICall, -// performing retries as specified by opts, if any. -func Invoke(ctx context.Context, call APICall, opts ...CallOption) error { - return v2.Invoke(ctx, call, opts...) -} - -// Sleep is similar to time.Sleep, but it can be interrupted by ctx.Done() closing. -// If interrupted, Sleep returns ctx.Err(). -func Sleep(ctx context.Context, d time.Duration) error { - return v2.Sleep(ctx, d) -} diff --git a/vendor/github.com/googleapis/gax-go/tools.go b/vendor/github.com/googleapis/gax-go/tools.go deleted file mode 100644 index ffb3ad482..000000000 --- a/vendor/github.com/googleapis/gax-go/tools.go +++ /dev/null @@ -1,33 +0,0 @@ -// +build tools - -// Copyright 2019 Google LLC -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// This package exists to cause `go mod` and `go get` to believe these tools -// are dependencies, even though they are not runtime dependencies of any -// package (these are tools used by our CI builds). This means they will appear -// in our `go.mod` file, but will not be a part of the build. Also, since the -// build target is something non-existent, these should not be included in any -// binaries. - -package gax - -import ( - _ "github.com/golang/protobuf/proto" - _ "github.com/golang/protobuf/protoc-gen-go" - _ "golang.org/x/exp/cmd/apidiff" - _ "golang.org/x/lint/golint" - _ "golang.org/x/tools/cmd/goimports" - _ "honnef.co/go/tools/cmd/staticcheck" -) diff --git a/vendor/github.com/googleapis/gax-go/v2/LICENSE b/vendor/github.com/googleapis/gax-go/v2/LICENSE new file mode 100644 index 000000000..6d16b6578 --- /dev/null +++ b/vendor/github.com/googleapis/gax-go/v2/LICENSE @@ -0,0 +1,27 @@ +Copyright 2016, Google Inc. +All rights reserved. +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are +met: + + * Redistributions of source code must retain the above copyright +notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above +copyright notice, this list of conditions and the following disclaimer +in the documentation and/or other materials provided with the +distribution. + * Neither the name of Google Inc. nor the names of its +contributors may be used to endorse or promote products derived from +this software without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. diff --git a/vendor/github.com/googleapis/gax-go/v2/call_option.go b/vendor/github.com/googleapis/gax-go/v2/call_option.go index 8b7753969..b1d53dd19 100644 --- a/vendor/github.com/googleapis/gax-go/v2/call_option.go +++ b/vendor/github.com/googleapis/gax-go/v2/call_option.go @@ -94,25 +94,22 @@ func (r *boRetryer) Retry(err error) (time.Duration, bool) { return 0, false } -// Backoff implements exponential backoff. The wait time between retries is a -// random value between 0 and the "retry period" - the time between retries. The -// retry period starts at Initial and increases by the factor of Multiplier -// every retry, but is capped at Max. -// -// Note: MaxNumRetries / RPCDeadline is specifically not provided. These should -// be built on top of Backoff. +// Backoff implements exponential backoff. +// The wait time between retries is a random value between 0 and the "retry envelope". +// The envelope starts at Initial and increases by the factor of Multiplier every retry, +// but is capped at Max. type Backoff struct { - // Initial is the initial value of the retry period, defaults to 1 second. + // Initial is the initial value of the retry envelope, defaults to 1 second. Initial time.Duration - // Max is the maximum value of the retry period, defaults to 30 seconds. + // Max is the maximum value of the retry envelope, defaults to 30 seconds. Max time.Duration - // Multiplier is the factor by which the retry period increases. + // Multiplier is the factor by which the retry envelope increases. // It should be greater than 1 and defaults to 2. Multiplier float64 - // cur is the current retry period. + // cur is the current retry envelope cur time.Duration } diff --git a/vendor/github.com/googleapis/gax-go/v2/gax.go b/vendor/github.com/googleapis/gax-go/v2/gax.go index dfc4beb28..3fd1b0b84 100644 --- a/vendor/github.com/googleapis/gax-go/v2/gax.go +++ b/vendor/github.com/googleapis/gax-go/v2/gax.go @@ -36,4 +36,4 @@ package gax // Version specifies the gax-go version being used. -const Version = "2.0.5" +const Version = "2.0.4" diff --git a/vendor/github.com/googleapis/gax-go/v2/go.mod b/vendor/github.com/googleapis/gax-go/v2/go.mod index e83e87b8b..9cdfaf447 100644 --- a/vendor/github.com/googleapis/gax-go/v2/go.mod +++ b/vendor/github.com/googleapis/gax-go/v2/go.mod @@ -1,5 +1,3 @@ module github.com/googleapis/gax-go/v2 -go 1.11 - require google.golang.org/grpc v1.19.0 diff --git a/vendor/github.com/googleapis/gax-go/v2/invoke.go b/vendor/github.com/googleapis/gax-go/v2/invoke.go index 749b9d234..fe31dd004 100644 --- a/vendor/github.com/googleapis/gax-go/v2/invoke.go +++ b/vendor/github.com/googleapis/gax-go/v2/invoke.go @@ -38,8 +38,8 @@ import ( // APICall is a user defined call stub. type APICall func(context.Context, CallSettings) error -// Invoke calls the given APICall, performing retries as specified by opts, if -// any. +// Invoke calls the given APICall, +// performing retries as specified by opts, if any. func Invoke(ctx context.Context, call APICall, opts ...CallOption) error { var settings CallSettings for _, opt := range opts { diff --git a/vendor/github.com/ianlancetaylor/demangle/c++filt.go b/vendor/github.com/ianlancetaylor/demangle/c++filt.go deleted file mode 100644 index 7ba817c9f..000000000 --- a/vendor/github.com/ianlancetaylor/demangle/c++filt.go +++ /dev/null @@ -1,144 +0,0 @@ -// Copyright 2015 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -// +build ignore - -// This is a program that works like the GNU c++filt program. -// It's here for testing purposes and as an example. - -package main - -import ( - "bufio" - "flag" - "fmt" - "io" - "os" - "strings" - "unicode" - - "github.com/ianlancetaylor/demangle" -) - -func flagUsage() { - usage(os.Stderr, 2) -} - -func usage(w io.Writer, status int) { - fmt.Fprintf(w, "Usage: %s [options] [mangled names]\n", os.Args[0]) - flag.CommandLine.SetOutput(w) - flag.PrintDefaults() - fmt.Fprintln(w, `Demangled names are displayed to stdout -If a name cannot be demangled it is just echoed to stdout. -If no names are provided on the command line, stdin is read.`) - os.Exit(status) -} - -var stripUnderscore = flag.Bool("_", false, "Ignore first leading underscore") -var noParams = flag.Bool("p", false, "Do not display function argument types") -var noVerbose = flag.Bool("i", false, "Do not show implementation details (if any)") -var help = flag.Bool("h", false, "Display help information") -var debug = flag.Bool("d", false, "Display debugging information for strings on command line") - -// Unimplemented c++filt flags: -// -n (opposite of -_) -// -t (demangle types) -// -s (set demangling style) -// -V (print version information) - -// Characters considered to be part of a symbol. -const symbolChars = "_$." - -func main() { - flag.Usage = func() { usage(os.Stderr, 1) } - flag.Parse() - - if *help { - usage(os.Stdout, 0) - } - - out := bufio.NewWriter(os.Stdout) - - if flag.NArg() > 0 { - for _, f := range flag.Args() { - if *debug { - a, err := demangle.ToAST(f, options()...) - if err != nil { - fmt.Fprintf(os.Stderr, "%s: %v\n", f, err) - } else { - fmt.Fprintf(out, "%#v\n", a) - } - } else { - doDemangle(out, f) - } - out.WriteByte('\n') - } - if err := out.Flush(); err != nil { - fmt.Fprintln(os.Stderr, err) - os.Exit(2) - } - return - } - - scanner := bufio.NewScanner(bufio.NewReader(os.Stdin)) - for scanner.Scan() { - line := scanner.Text() - start := -1 - for i, c := range line { - if unicode.IsLetter(c) || unicode.IsNumber(c) || strings.ContainsRune(symbolChars, c) { - if start < 0 { - start = i - } - } else { - if start >= 0 { - doDemangle(out, line[start:i]) - } - out.WriteRune(c) - start = -1 - } - } - if start >= 0 { - doDemangle(out, line[start:]) - start = -1 - } - out.WriteByte('\n') - if err := out.Flush(); err != nil { - fmt.Fprintln(os.Stderr, err) - os.Exit(2) - } - } -} - -// Demangle a string just as the GNU c++filt program does. -func doDemangle(out *bufio.Writer, name string) { - skip := 0 - if name[0] == '.' || name[0] == '$' { - skip++ - } - if *stripUnderscore && name[skip] == '_' { - skip++ - } - result := demangle.Filter(name[skip:], options()...) - if result == name[skip:] { - out.WriteString(name) - } else { - if name[0] == '.' { - out.WriteByte('.') - } - out.WriteString(result) - } -} - -// options returns the demangling options to use based on the command -// line flags. -func options() []demangle.Option { - var options []demangle.Option - if *noParams { - options = append(options, demangle.NoParams) - } - if !*noVerbose { - options = append(options, demangle.Verbose) - } - return options -} diff --git a/vendor/go.opencensus.io/internal/internal.go b/vendor/go.opencensus.io/internal/internal.go index 62d1ef957..81dc7183e 100644 --- a/vendor/go.opencensus.io/internal/internal.go +++ b/vendor/go.opencensus.io/internal/internal.go @@ -12,7 +12,7 @@ // See the License for the specific language governing permissions and // limitations under the License. -package internal +package internal // import "go.opencensus.io/internal" import ( "fmt" diff --git a/vendor/go.opencensus.io/internal/tagencoding/tagencoding.go b/vendor/go.opencensus.io/internal/tagencoding/tagencoding.go index d4151c854..41b2c3fc0 100644 --- a/vendor/go.opencensus.io/internal/tagencoding/tagencoding.go +++ b/vendor/go.opencensus.io/internal/tagencoding/tagencoding.go @@ -15,7 +15,7 @@ // Package tagencoding contains the tag encoding // used interally by the stats collector. -package tagencoding +package tagencoding // import "go.opencensus.io/internal/tagencoding" // Values represent the encoded buffer for the values. type Values struct { diff --git a/vendor/go.opencensus.io/metric/metricdata/doc.go b/vendor/go.opencensus.io/metric/metricdata/doc.go index 2ccdb10d6..52a7b3bf8 100644 --- a/vendor/go.opencensus.io/metric/metricdata/doc.go +++ b/vendor/go.opencensus.io/metric/metricdata/doc.go @@ -16,4 +16,4 @@ // // This is an EXPERIMENTAL package, and may change in arbitrary ways without // notice. -package metricdata +package metricdata // import "go.opencensus.io/metric/metricdata" diff --git a/vendor/go.opencensus.io/opencensus.go b/vendor/go.opencensus.io/opencensus.go index d264058dc..e5e4b4368 100644 --- a/vendor/go.opencensus.io/opencensus.go +++ b/vendor/go.opencensus.io/opencensus.go @@ -13,7 +13,7 @@ // limitations under the License. // Package opencensus contains Go support for OpenCensus. -package opencensus +package opencensus // import "go.opencensus.io" // Version is the current release version of OpenCensus in use. func Version() string { diff --git a/vendor/go.opencensus.io/plugin/ochttp/doc.go b/vendor/go.opencensus.io/plugin/ochttp/doc.go index 4e9b56813..10e626b16 100644 --- a/vendor/go.opencensus.io/plugin/ochttp/doc.go +++ b/vendor/go.opencensus.io/plugin/ochttp/doc.go @@ -16,4 +16,4 @@ // // For server instrumentation, see Handler. For client-side instrumentation, // see Transport. -package ochttp +package ochttp // import "go.opencensus.io/plugin/ochttp" diff --git a/vendor/go.opencensus.io/plugin/ochttp/propagation/b3/b3.go b/vendor/go.opencensus.io/plugin/ochttp/propagation/b3/b3.go index 486659c25..2f1c7f006 100644 --- a/vendor/go.opencensus.io/plugin/ochttp/propagation/b3/b3.go +++ b/vendor/go.opencensus.io/plugin/ochttp/propagation/b3/b3.go @@ -15,7 +15,7 @@ // Package b3 contains a propagation.HTTPFormat implementation // for B3 propagation. See https://github.com/openzipkin/b3-propagation // for more details. -package b3 +package b3 // import "go.opencensus.io/plugin/ochttp/propagation/b3" import ( "encoding/hex" diff --git a/vendor/go.opencensus.io/stats/doc.go b/vendor/go.opencensus.io/stats/doc.go index 8b99283ac..00d473ee0 100644 --- a/vendor/go.opencensus.io/stats/doc.go +++ b/vendor/go.opencensus.io/stats/doc.go @@ -66,4 +66,4 @@ When exported to a supporting back end, you should be able to easily navigate to example traces that fell into each bucket in the Distribution. */ -package stats +package stats // import "go.opencensus.io/stats" diff --git a/vendor/go.opencensus.io/stats/view/doc.go b/vendor/go.opencensus.io/stats/view/doc.go index 3e0fde45c..7bbedfe1f 100644 --- a/vendor/go.opencensus.io/stats/view/doc.go +++ b/vendor/go.opencensus.io/stats/view/doc.go @@ -41,7 +41,7 @@ // // Multiple exporters can be registered to upload the data to various // different back ends. -package view +package view // import "go.opencensus.io/stats/view" // TODO(acetechnologist): Add a link to the language independent OpenCensus // spec when it is available. diff --git a/vendor/go.opencensus.io/tag/doc.go b/vendor/go.opencensus.io/tag/doc.go index bfeb77f51..da16b74e4 100644 --- a/vendor/go.opencensus.io/tag/doc.go +++ b/vendor/go.opencensus.io/tag/doc.go @@ -23,4 +23,4 @@ Tags can be propagated on the wire and in the same process via context.Context. Encode and Decode should be used to represent tags into their binary propagation form. */ -package tag +package tag // import "go.opencensus.io/tag" diff --git a/vendor/go.opencensus.io/trace/doc.go b/vendor/go.opencensus.io/trace/doc.go index d83f111a2..04b1ee4f3 100644 --- a/vendor/go.opencensus.io/trace/doc.go +++ b/vendor/go.opencensus.io/trace/doc.go @@ -50,4 +50,4 @@ lines to the top of the function: StartSpan will create a new top-level span if the context doesn't contain another span, otherwise it will create a child span. */ -package trace +package trace // import "go.opencensus.io/trace" diff --git a/vendor/go.opencensus.io/trace/propagation/propagation.go b/vendor/go.opencensus.io/trace/propagation/propagation.go index a3b00f474..1eb190a96 100644 --- a/vendor/go.opencensus.io/trace/propagation/propagation.go +++ b/vendor/go.opencensus.io/trace/propagation/propagation.go @@ -13,7 +13,7 @@ // limitations under the License. // Package propagation implements the binary trace context format. -package propagation +package propagation // import "go.opencensus.io/trace/propagation" // TODO: link to external spec document. diff --git a/vendor/golang.org/x/lint/golint/importcomment.go b/vendor/golang.org/x/lint/golint/importcomment.go index f1dce7706..d5b32f734 100644 --- a/vendor/golang.org/x/lint/golint/importcomment.go +++ b/vendor/golang.org/x/lint/golint/importcomment.go @@ -10,4 +10,4 @@ // any breakages coincide with people updating their CI configs or // whatnot. -package main +package main // import "golang.org/x/lint/golint" diff --git a/vendor/golang.org/x/lint/lint.go b/vendor/golang.org/x/lint/lint.go index 7d2e765ac..532a75ad2 100644 --- a/vendor/golang.org/x/lint/lint.go +++ b/vendor/golang.org/x/lint/lint.go @@ -5,7 +5,7 @@ // https://developers.google.com/open-source/licenses/bsd. // Package lint contains a linter for Go source code. -package lint +package lint // import "golang.org/x/lint" import ( "bufio" diff --git a/vendor/golang.org/x/net/context/context.go b/vendor/golang.org/x/net/context/context.go index 839e3a64b..a3c021d3f 100644 --- a/vendor/golang.org/x/net/context/context.go +++ b/vendor/golang.org/x/net/context/context.go @@ -36,7 +36,7 @@ // // See http://blog.golang.org/context for example code for a server that uses // Contexts. -package context +package context // import "golang.org/x/net/context" // Background returns a non-nil, empty Context. It is never canceled, has no // values, and has no deadline. It is typically used by the main function, diff --git a/vendor/golang.org/x/net/context/ctxhttp/ctxhttp.go b/vendor/golang.org/x/net/context/ctxhttp/ctxhttp.go index e0df203ce..37dc0cfdb 100644 --- a/vendor/golang.org/x/net/context/ctxhttp/ctxhttp.go +++ b/vendor/golang.org/x/net/context/ctxhttp/ctxhttp.go @@ -3,7 +3,7 @@ // license that can be found in the LICENSE file. // Package ctxhttp provides helper functions for performing context-aware HTTP requests. -package ctxhttp +package ctxhttp // import "golang.org/x/net/context/ctxhttp" import ( "context" diff --git a/vendor/golang.org/x/net/http2/http2.go b/vendor/golang.org/x/net/http2/http2.go index 349999818..bdaba1d46 100644 --- a/vendor/golang.org/x/net/http2/http2.go +++ b/vendor/golang.org/x/net/http2/http2.go @@ -14,7 +14,7 @@ // // See https://http2.golang.org/ for a test server running this code. // -package http2 +package http2 // import "golang.org/x/net/http2" import ( "bufio" diff --git a/vendor/golang.org/x/net/idna/idna10.0.0.go b/vendor/golang.org/x/net/idna/idna10.0.0.go index 29a27795b..a98a31f40 100644 --- a/vendor/golang.org/x/net/idna/idna10.0.0.go +++ b/vendor/golang.org/x/net/idna/idna10.0.0.go @@ -15,7 +15,7 @@ // UTS #46 is defined in https://www.unicode.org/reports/tr46. // See https://unicode.org/cldr/utility/idna.jsp for a visualization of the // differences between these two standards. -package idna +package idna // import "golang.org/x/net/idna" import ( "fmt" diff --git a/vendor/golang.org/x/net/idna/idna9.0.0.go b/vendor/golang.org/x/net/idna/idna9.0.0.go index 9adc1599f..8842146b5 100644 --- a/vendor/golang.org/x/net/idna/idna9.0.0.go +++ b/vendor/golang.org/x/net/idna/idna9.0.0.go @@ -15,7 +15,7 @@ // UTS #46 is defined in https://www.unicode.org/reports/tr46. // See https://unicode.org/cldr/utility/idna.jsp for a visualization of the // differences between these two standards. -package idna +package idna // import "golang.org/x/net/idna" import ( "fmt" diff --git a/vendor/golang.org/x/net/internal/timeseries/timeseries.go b/vendor/golang.org/x/net/internal/timeseries/timeseries.go index 5f6f53cdd..dc5225b6d 100644 --- a/vendor/golang.org/x/net/internal/timeseries/timeseries.go +++ b/vendor/golang.org/x/net/internal/timeseries/timeseries.go @@ -3,7 +3,7 @@ // license that can be found in the LICENSE file. // Package timeseries implements a time series structure for stats collection. -package timeseries +package timeseries // import "golang.org/x/net/internal/timeseries" import ( "fmt" diff --git a/vendor/golang.org/x/net/trace/trace.go b/vendor/golang.org/x/net/trace/trace.go index e548dada2..3ebf6f2da 100644 --- a/vendor/golang.org/x/net/trace/trace.go +++ b/vendor/golang.org/x/net/trace/trace.go @@ -60,7 +60,7 @@ The /debug/events HTTP endpoint organizes the event logs by family and by time since the last error. The expanded view displays recent log entries and the log's call stack. */ -package trace +package trace // import "golang.org/x/net/trace" import ( "bytes" diff --git a/vendor/golang.org/x/oauth2/google/doc.go b/vendor/golang.org/x/oauth2/google/doc.go index 7a961ee27..73be62903 100644 --- a/vendor/golang.org/x/oauth2/google/doc.go +++ b/vendor/golang.org/x/oauth2/google/doc.go @@ -37,4 +37,4 @@ // same as the one obtained from the oauth2.Config returned from ConfigFromJSON or // JWTConfigFromJSON, but the Credentials may contain additional information // that is useful is some circumstances. -package google +package google // import "golang.org/x/oauth2/google" diff --git a/vendor/golang.org/x/oauth2/jws/jws.go b/vendor/golang.org/x/oauth2/jws/jws.go index 8bcecb46b..683d2d271 100644 --- a/vendor/golang.org/x/oauth2/jws/jws.go +++ b/vendor/golang.org/x/oauth2/jws/jws.go @@ -12,7 +12,7 @@ // removed in the future. It exists for internal use only. // Please switch to another JWS package or copy this package into your own // source tree. -package jws +package jws // import "golang.org/x/oauth2/jws" import ( "bytes" diff --git a/vendor/golang.org/x/oauth2/oauth2.go b/vendor/golang.org/x/oauth2/oauth2.go index d852d193d..291df5c83 100644 --- a/vendor/golang.org/x/oauth2/oauth2.go +++ b/vendor/golang.org/x/oauth2/oauth2.go @@ -6,7 +6,7 @@ // OAuth2 authorized and authenticated HTTP requests, // as specified in RFC 6749. // It can additionally grant authorization with Bearer JWT. -package oauth2 +package oauth2 // import "golang.org/x/oauth2" import ( "bytes" diff --git a/vendor/golang.org/x/sys/unix/mkall.sh b/vendor/golang.org/x/sys/unix/mkall.sh old mode 100755 new mode 100644 diff --git a/vendor/golang.org/x/sys/unix/mkasm_darwin.go b/vendor/golang.org/x/sys/unix/mkasm_darwin.go deleted file mode 100644 index 6f7bb6edf..000000000 --- a/vendor/golang.org/x/sys/unix/mkasm_darwin.go +++ /dev/null @@ -1,78 +0,0 @@ -// Copyright 2018 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -// +build ignore - -// mkasm_darwin.go generates assembly trampolines to call libSystem routines from Go. -//This program must be run after mksyscall.go. -package main - -import ( - "bytes" - "fmt" - "io/ioutil" - "log" - "os" - "strings" -) - -func writeASMFile(in string, fileName string, buildTags string) { - trampolines := map[string]bool{} - - var out bytes.Buffer - - fmt.Fprintf(&out, "// go run mkasm_darwin.go %s\n", strings.Join(os.Args[1:], " ")) - fmt.Fprintf(&out, "// Code generated by the command above; DO NOT EDIT.\n") - fmt.Fprintf(&out, "\n") - fmt.Fprintf(&out, "// +build %s\n", buildTags) - fmt.Fprintf(&out, "\n") - fmt.Fprintf(&out, "#include \"textflag.h\"\n") - for _, line := range strings.Split(in, "\n") { - if !strings.HasPrefix(line, "func ") || !strings.HasSuffix(line, "_trampoline()") { - continue - } - fn := line[5 : len(line)-13] - if !trampolines[fn] { - trampolines[fn] = true - fmt.Fprintf(&out, "TEXT ·%s_trampoline(SB),NOSPLIT,$0-0\n", fn) - fmt.Fprintf(&out, "\tJMP\t%s(SB)\n", fn) - } - } - err := ioutil.WriteFile(fileName, out.Bytes(), 0644) - if err != nil { - log.Fatalf("can't write %s: %s", fileName, err) - } -} - -func main() { - in1, err := ioutil.ReadFile("syscall_darwin.go") - if err != nil { - log.Fatalf("can't open syscall_darwin.go: %s", err) - } - arch := os.Args[1] - in2, err := ioutil.ReadFile(fmt.Sprintf("syscall_darwin_%s.go", arch)) - if err != nil { - log.Fatalf("can't open syscall_darwin_%s.go: %s", arch, err) - } - in3, err := ioutil.ReadFile(fmt.Sprintf("zsyscall_darwin_%s.go", arch)) - if err != nil { - log.Fatalf("can't open zsyscall_darwin_%s.go: %s", arch, err) - } - in := string(in1) + string(in2) + string(in3) - - writeASMFile(in, fmt.Sprintf("zsyscall_darwin_%s.s", arch), "go1.12") - - in1, err = ioutil.ReadFile("syscall_darwin.1_13.go") - if err != nil { - log.Fatalf("can't open syscall_darwin.1_13.go: %s", err) - } - in2, err = ioutil.ReadFile(fmt.Sprintf("zsyscall_darwin_%s.1_13.go", arch)) - if err != nil { - log.Fatalf("can't open zsyscall_darwin_%s.1_13.go: %s", arch, err) - } - - in = string(in1) + string(in2) - - writeASMFile(in, fmt.Sprintf("zsyscall_darwin_%s.1_13.s", arch), "go1.13") -} diff --git a/vendor/golang.org/x/sys/unix/mkerrors.sh b/vendor/golang.org/x/sys/unix/mkerrors.sh old mode 100755 new mode 100644 diff --git a/vendor/golang.org/x/sys/unix/mkmerge.go b/vendor/golang.org/x/sys/unix/mkmerge.go deleted file mode 100644 index 8bde45016..000000000 --- a/vendor/golang.org/x/sys/unix/mkmerge.go +++ /dev/null @@ -1,521 +0,0 @@ -// Copyright 2020 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -// +build ignore - -// mkmerge.go parses generated source files and merges common -// consts, funcs, and types into a common source file, per GOOS. -// -// Usage: -// $ go run mkmerge.go -out MERGED FILE [FILE ...] -// -// Example: -// # Remove all common consts, funcs, and types from zerrors_linux_*.go -// # and write the common code into zerrors_linux.go -// $ go run mkmerge.go -out zerrors_linux.go zerrors_linux_*.go -// -// mkmerge.go performs the merge in the following steps: -// 1. Construct the set of common code that is idential in all -// architecture-specific files. -// 2. Write this common code to the merged file. -// 3. Remove the common code from all architecture-specific files. -package main - -import ( - "bufio" - "bytes" - "flag" - "fmt" - "go/ast" - "go/format" - "go/parser" - "go/token" - "io" - "io/ioutil" - "log" - "os" - "path" - "path/filepath" - "regexp" - "strconv" - "strings" -) - -const validGOOS = "aix|darwin|dragonfly|freebsd|linux|netbsd|openbsd|solaris" - -// getValidGOOS returns GOOS, true if filename ends with a valid "_GOOS.go" -func getValidGOOS(filename string) (string, bool) { - matches := regexp.MustCompile(`_(` + validGOOS + `)\.go$`).FindStringSubmatch(filename) - if len(matches) != 2 { - return "", false - } - return matches[1], true -} - -// codeElem represents an ast.Decl in a comparable way. -type codeElem struct { - tok token.Token // e.g. token.CONST, token.TYPE, or token.FUNC - src string // the declaration formatted as source code -} - -// newCodeElem returns a codeElem based on tok and node, or an error is returned. -func newCodeElem(tok token.Token, node ast.Node) (codeElem, error) { - var b strings.Builder - err := format.Node(&b, token.NewFileSet(), node) - if err != nil { - return codeElem{}, err - } - return codeElem{tok, b.String()}, nil -} - -// codeSet is a set of codeElems -type codeSet struct { - set map[codeElem]bool // true for all codeElems in the set -} - -// newCodeSet returns a new codeSet -func newCodeSet() *codeSet { return &codeSet{make(map[codeElem]bool)} } - -// add adds elem to c -func (c *codeSet) add(elem codeElem) { c.set[elem] = true } - -// has returns true if elem is in c -func (c *codeSet) has(elem codeElem) bool { return c.set[elem] } - -// isEmpty returns true if the set is empty -func (c *codeSet) isEmpty() bool { return len(c.set) == 0 } - -// intersection returns a new set which is the intersection of c and a -func (c *codeSet) intersection(a *codeSet) *codeSet { - res := newCodeSet() - - for elem := range c.set { - if a.has(elem) { - res.add(elem) - } - } - return res -} - -// keepCommon is a filterFn for filtering the merged file with common declarations. -func (c *codeSet) keepCommon(elem codeElem) bool { - switch elem.tok { - case token.VAR: - // Remove all vars from the merged file - return false - case token.CONST, token.TYPE, token.FUNC, token.COMMENT: - // Remove arch-specific consts, types, functions, and file-level comments from the merged file - return c.has(elem) - case token.IMPORT: - // Keep imports, they are handled by filterImports - return true - } - - log.Fatalf("keepCommon: invalid elem %v", elem) - return true -} - -// keepArchSpecific is a filterFn for filtering the GOARC-specific files. -func (c *codeSet) keepArchSpecific(elem codeElem) bool { - switch elem.tok { - case token.CONST, token.TYPE, token.FUNC: - // Remove common consts, types, or functions from the arch-specific file - return !c.has(elem) - } - return true -} - -// srcFile represents a source file -type srcFile struct { - name string - src []byte -} - -// filterFn is a helper for filter -type filterFn func(codeElem) bool - -// filter parses and filters Go source code from src, removing top -// level declarations using keep as predicate. -// For src parameter, please see docs for parser.ParseFile. -func filter(src interface{}, keep filterFn) ([]byte, error) { - // Parse the src into an ast - fset := token.NewFileSet() - f, err := parser.ParseFile(fset, "", src, parser.ParseComments) - if err != nil { - return nil, err - } - cmap := ast.NewCommentMap(fset, f, f.Comments) - - // Group const/type specs on adjacent lines - var groups specGroups = make(map[string]int) - var groupID int - - decls := f.Decls - f.Decls = f.Decls[:0] - for _, decl := range decls { - switch decl := decl.(type) { - case *ast.GenDecl: - // Filter imports, consts, types, vars - specs := decl.Specs - decl.Specs = decl.Specs[:0] - for i, spec := range specs { - elem, err := newCodeElem(decl.Tok, spec) - if err != nil { - return nil, err - } - - // Create new group if there are empty lines between this and the previous spec - if i > 0 && fset.Position(specs[i-1].End()).Line < fset.Position(spec.Pos()).Line-1 { - groupID++ - } - - // Check if we should keep this spec - if keep(elem) { - decl.Specs = append(decl.Specs, spec) - groups.add(elem.src, groupID) - } - } - // Check if we should keep this decl - if len(decl.Specs) > 0 { - f.Decls = append(f.Decls, decl) - } - case *ast.FuncDecl: - // Filter funcs - elem, err := newCodeElem(token.FUNC, decl) - if err != nil { - return nil, err - } - if keep(elem) { - f.Decls = append(f.Decls, decl) - } - } - } - - // Filter file level comments - if cmap[f] != nil { - commentGroups := cmap[f] - cmap[f] = cmap[f][:0] - for _, cGrp := range commentGroups { - if keep(codeElem{token.COMMENT, cGrp.Text()}) { - cmap[f] = append(cmap[f], cGrp) - } - } - } - f.Comments = cmap.Filter(f).Comments() - - // Generate code for the filtered ast - var buf bytes.Buffer - if err = format.Node(&buf, fset, f); err != nil { - return nil, err - } - - groupedSrc, err := groups.filterEmptyLines(&buf) - if err != nil { - return nil, err - } - - return filterImports(groupedSrc) -} - -// getCommonSet returns the set of consts, types, and funcs that are present in every file. -func getCommonSet(files []srcFile) (*codeSet, error) { - if len(files) == 0 { - return nil, fmt.Errorf("no files provided") - } - // Use the first architecture file as the baseline - baseSet, err := getCodeSet(files[0].src) - if err != nil { - return nil, err - } - - // Compare baseline set with other architecture files: discard any element, - // that doesn't exist in other architecture files. - for _, f := range files[1:] { - set, err := getCodeSet(f.src) - if err != nil { - return nil, err - } - - baseSet = baseSet.intersection(set) - } - return baseSet, nil -} - -// getCodeSet returns the set of all top-level consts, types, and funcs from src. -// src must be string, []byte, or io.Reader (see go/parser.ParseFile docs) -func getCodeSet(src interface{}) (*codeSet, error) { - set := newCodeSet() - - fset := token.NewFileSet() - f, err := parser.ParseFile(fset, "", src, parser.ParseComments) - if err != nil { - return nil, err - } - - for _, decl := range f.Decls { - switch decl := decl.(type) { - case *ast.GenDecl: - // Add const, and type declarations - if !(decl.Tok == token.CONST || decl.Tok == token.TYPE) { - break - } - - for _, spec := range decl.Specs { - elem, err := newCodeElem(decl.Tok, spec) - if err != nil { - return nil, err - } - - set.add(elem) - } - case *ast.FuncDecl: - // Add func declarations - elem, err := newCodeElem(token.FUNC, decl) - if err != nil { - return nil, err - } - - set.add(elem) - } - } - - // Add file level comments - cmap := ast.NewCommentMap(fset, f, f.Comments) - for _, cGrp := range cmap[f] { - set.add(codeElem{token.COMMENT, cGrp.Text()}) - } - - return set, nil -} - -// importName returns the identifier (PackageName) for an imported package -func importName(iSpec *ast.ImportSpec) (string, error) { - if iSpec.Name == nil { - name, err := strconv.Unquote(iSpec.Path.Value) - if err != nil { - return "", err - } - return path.Base(name), nil - } - return iSpec.Name.Name, nil -} - -// specGroups tracks grouped const/type specs with a map of line: groupID pairs -type specGroups map[string]int - -// add spec source to group -func (s specGroups) add(src string, groupID int) error { - srcBytes, err := format.Source(bytes.TrimSpace([]byte(src))) - if err != nil { - return err - } - s[string(srcBytes)] = groupID - return nil -} - -// filterEmptyLines removes empty lines within groups of const/type specs. -// Returns the filtered source. -func (s specGroups) filterEmptyLines(src io.Reader) ([]byte, error) { - scanner := bufio.NewScanner(src) - var out bytes.Buffer - - var emptyLines bytes.Buffer - prevGroupID := -1 // Initialize to invalid group - for scanner.Scan() { - line := bytes.TrimSpace(scanner.Bytes()) - - if len(line) == 0 { - fmt.Fprintf(&emptyLines, "%s\n", scanner.Bytes()) - continue - } - - // Discard emptyLines if previous non-empty line belonged to the same - // group as this line - if src, err := format.Source(line); err == nil { - groupID, ok := s[string(src)] - if ok && groupID == prevGroupID { - emptyLines.Reset() - } - prevGroupID = groupID - } - - emptyLines.WriteTo(&out) - fmt.Fprintf(&out, "%s\n", scanner.Bytes()) - } - if err := scanner.Err(); err != nil { - return nil, err - } - return out.Bytes(), nil -} - -// filterImports removes unused imports from fileSrc, and returns a formatted src. -func filterImports(fileSrc []byte) ([]byte, error) { - fset := token.NewFileSet() - file, err := parser.ParseFile(fset, "", fileSrc, parser.ParseComments) - if err != nil { - return nil, err - } - cmap := ast.NewCommentMap(fset, file, file.Comments) - - // create set of references to imported identifiers - keepImport := make(map[string]bool) - for _, u := range file.Unresolved { - keepImport[u.Name] = true - } - - // filter import declarations - decls := file.Decls - file.Decls = file.Decls[:0] - for _, decl := range decls { - importDecl, ok := decl.(*ast.GenDecl) - - // Keep non-import declarations - if !ok || importDecl.Tok != token.IMPORT { - file.Decls = append(file.Decls, decl) - continue - } - - // Filter the import specs - specs := importDecl.Specs - importDecl.Specs = importDecl.Specs[:0] - for _, spec := range specs { - iSpec := spec.(*ast.ImportSpec) - name, err := importName(iSpec) - if err != nil { - return nil, err - } - - if keepImport[name] { - importDecl.Specs = append(importDecl.Specs, iSpec) - } - } - if len(importDecl.Specs) > 0 { - file.Decls = append(file.Decls, importDecl) - } - } - - // filter file.Imports - imports := file.Imports - file.Imports = file.Imports[:0] - for _, spec := range imports { - name, err := importName(spec) - if err != nil { - return nil, err - } - - if keepImport[name] { - file.Imports = append(file.Imports, spec) - } - } - file.Comments = cmap.Filter(file).Comments() - - var buf bytes.Buffer - err = format.Node(&buf, fset, file) - if err != nil { - return nil, err - } - - return buf.Bytes(), nil -} - -// merge extracts duplicate code from archFiles and merges it to mergeFile. -// 1. Construct commonSet: the set of code that is idential in all archFiles. -// 2. Write the code in commonSet to mergedFile. -// 3. Remove the commonSet code from all archFiles. -func merge(mergedFile string, archFiles ...string) error { - // extract and validate the GOOS part of the merged filename - goos, ok := getValidGOOS(mergedFile) - if !ok { - return fmt.Errorf("invalid GOOS in merged file name %s", mergedFile) - } - - // Read architecture files - var inSrc []srcFile - for _, file := range archFiles { - src, err := ioutil.ReadFile(file) - if err != nil { - return fmt.Errorf("cannot read archfile %s: %w", file, err) - } - - inSrc = append(inSrc, srcFile{file, src}) - } - - // 1. Construct the set of top-level declarations common for all files - commonSet, err := getCommonSet(inSrc) - if err != nil { - return err - } - if commonSet.isEmpty() { - // No common code => do not modify any files - return nil - } - - // 2. Write the merged file - mergedSrc, err := filter(inSrc[0].src, commonSet.keepCommon) - if err != nil { - return err - } - - f, err := os.Create(mergedFile) - if err != nil { - return err - } - - buf := bufio.NewWriter(f) - fmt.Fprintln(buf, "// Code generated by mkmerge.go; DO NOT EDIT.") - fmt.Fprintln(buf) - fmt.Fprintf(buf, "// +build %s\n", goos) - fmt.Fprintln(buf) - buf.Write(mergedSrc) - - err = buf.Flush() - if err != nil { - return err - } - err = f.Close() - if err != nil { - return err - } - - // 3. Remove duplicate declarations from the architecture files - for _, inFile := range inSrc { - src, err := filter(inFile.src, commonSet.keepArchSpecific) - if err != nil { - return err - } - err = ioutil.WriteFile(inFile.name, src, 0644) - if err != nil { - return err - } - } - return nil -} - -func main() { - var mergedFile string - flag.StringVar(&mergedFile, "out", "", "Write merged code to `FILE`") - flag.Parse() - - // Expand wildcards - var filenames []string - for _, arg := range flag.Args() { - matches, err := filepath.Glob(arg) - if err != nil { - fmt.Fprintf(os.Stderr, "Invalid command line argument %q: %v\n", arg, err) - os.Exit(1) - } - filenames = append(filenames, matches...) - } - - if len(filenames) < 2 { - // No need to merge - return - } - - err := merge(mergedFile, filenames...) - if err != nil { - fmt.Fprintf(os.Stderr, "Merge failed with error: %v\n", err) - os.Exit(1) - } -} diff --git a/vendor/golang.org/x/sys/unix/mkpost.go b/vendor/golang.org/x/sys/unix/mkpost.go deleted file mode 100644 index 5ee1a16b9..000000000 --- a/vendor/golang.org/x/sys/unix/mkpost.go +++ /dev/null @@ -1,127 +0,0 @@ -// Copyright 2016 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -// +build ignore - -// mkpost processes the output of cgo -godefs to -// modify the generated types. It is used to clean up -// the sys API in an architecture specific manner. -// -// mkpost is run after cgo -godefs; see README.md. -package main - -import ( - "bytes" - "fmt" - "go/format" - "io/ioutil" - "log" - "os" - "regexp" -) - -func main() { - // Get the OS and architecture (using GOARCH_TARGET if it exists) - goos := os.Getenv("GOOS") - goarch := os.Getenv("GOARCH_TARGET") - if goarch == "" { - goarch = os.Getenv("GOARCH") - } - // Check that we are using the Docker-based build system if we should be. - if goos == "linux" { - if os.Getenv("GOLANG_SYS_BUILD") != "docker" { - os.Stderr.WriteString("In the Docker-based build system, mkpost should not be called directly.\n") - os.Stderr.WriteString("See README.md\n") - os.Exit(1) - } - } - - b, err := ioutil.ReadAll(os.Stdin) - if err != nil { - log.Fatal(err) - } - - if goos == "aix" { - // Replace type of Atim, Mtim and Ctim by Timespec in Stat_t - // to avoid having both StTimespec and Timespec. - sttimespec := regexp.MustCompile(`_Ctype_struct_st_timespec`) - b = sttimespec.ReplaceAll(b, []byte("Timespec")) - } - - // Intentionally export __val fields in Fsid and Sigset_t - valRegex := regexp.MustCompile(`type (Fsid|Sigset_t) struct {(\s+)X__(bits|val)(\s+\S+\s+)}`) - b = valRegex.ReplaceAll(b, []byte("type $1 struct {${2}Val$4}")) - - // Intentionally export __fds_bits field in FdSet - fdSetRegex := regexp.MustCompile(`type (FdSet) struct {(\s+)X__fds_bits(\s+\S+\s+)}`) - b = fdSetRegex.ReplaceAll(b, []byte("type $1 struct {${2}Bits$3}")) - - // If we have empty Ptrace structs, we should delete them. Only s390x emits - // nonempty Ptrace structs. - ptraceRexexp := regexp.MustCompile(`type Ptrace((Psw|Fpregs|Per) struct {\s*})`) - b = ptraceRexexp.ReplaceAll(b, nil) - - // Replace the control_regs union with a blank identifier for now. - controlRegsRegex := regexp.MustCompile(`(Control_regs)\s+\[0\]uint64`) - b = controlRegsRegex.ReplaceAll(b, []byte("_ [0]uint64")) - - // Remove fields that are added by glibc - // Note that this is unstable as the identifers are private. - removeFieldsRegex := regexp.MustCompile(`X__glibc\S*`) - b = removeFieldsRegex.ReplaceAll(b, []byte("_")) - - // Convert [65]int8 to [65]byte in Utsname members to simplify - // conversion to string; see golang.org/issue/20753 - convertUtsnameRegex := regexp.MustCompile(`((Sys|Node|Domain)name|Release|Version|Machine)(\s+)\[(\d+)\]u?int8`) - b = convertUtsnameRegex.ReplaceAll(b, []byte("$1$3[$4]byte")) - - // Convert [n]int8 to [n]byte in Statvfs_t members to simplify - // conversion to string. - convertStatvfsRegex := regexp.MustCompile(`((Fstype|Mnton|Mntfrom)name)(\s+)\[(\d+)\]int8`) - b = convertStatvfsRegex.ReplaceAll(b, []byte("$1$3[$4]byte")) - - // Convert [1024]int8 to [1024]byte in Ptmget members - convertPtmget := regexp.MustCompile(`([SC]n)(\s+)\[(\d+)\]u?int8`) - b = convertPtmget.ReplaceAll(b, []byte("$1[$3]byte")) - - // Remove spare fields (e.g. in Statx_t) - spareFieldsRegex := regexp.MustCompile(`X__spare\S*`) - b = spareFieldsRegex.ReplaceAll(b, []byte("_")) - - // Remove cgo padding fields - removePaddingFieldsRegex := regexp.MustCompile(`Pad_cgo_\d+`) - b = removePaddingFieldsRegex.ReplaceAll(b, []byte("_")) - - // Remove padding, hidden, or unused fields - removeFieldsRegex = regexp.MustCompile(`\b(X_\S+|Padding)`) - b = removeFieldsRegex.ReplaceAll(b, []byte("_")) - - // Remove the first line of warning from cgo - b = b[bytes.IndexByte(b, '\n')+1:] - // Modify the command in the header to include: - // mkpost, our own warning, and a build tag. - replacement := fmt.Sprintf(`$1 | go run mkpost.go -// Code generated by the command above; see README.md. DO NOT EDIT. - -// +build %s,%s`, goarch, goos) - cgoCommandRegex := regexp.MustCompile(`(cgo -godefs .*)`) - b = cgoCommandRegex.ReplaceAll(b, []byte(replacement)) - - // Rename Stat_t time fields - if goos == "freebsd" && goarch == "386" { - // Hide Stat_t.[AMCB]tim_ext fields - renameStatTimeExtFieldsRegex := regexp.MustCompile(`[AMCB]tim_ext`) - b = renameStatTimeExtFieldsRegex.ReplaceAll(b, []byte("_")) - } - renameStatTimeFieldsRegex := regexp.MustCompile(`([AMCB])(?:irth)?time?(?:spec)?\s+(Timespec|StTimespec)`) - b = renameStatTimeFieldsRegex.ReplaceAll(b, []byte("${1}tim ${2}")) - - // gofmt - b, err = format.Source(b) - if err != nil { - log.Fatal(err) - } - - os.Stdout.Write(b) -} diff --git a/vendor/golang.org/x/sys/unix/mksyscall.go b/vendor/golang.org/x/sys/unix/mksyscall.go deleted file mode 100644 index 9e540cc89..000000000 --- a/vendor/golang.org/x/sys/unix/mksyscall.go +++ /dev/null @@ -1,402 +0,0 @@ -// Copyright 2018 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -// +build ignore - -/* -This program reads a file containing function prototypes -(like syscall_darwin.go) and generates system call bodies. -The prototypes are marked by lines beginning with "//sys" -and read like func declarations if //sys is replaced by func, but: - * The parameter lists must give a name for each argument. - This includes return parameters. - * The parameter lists must give a type for each argument: - the (x, y, z int) shorthand is not allowed. - * If the return parameter is an error number, it must be named errno. - -A line beginning with //sysnb is like //sys, except that the -goroutine will not be suspended during the execution of the system -call. This must only be used for system calls which can never -block, as otherwise the system call could cause all goroutines to -hang. -*/ -package main - -import ( - "bufio" - "flag" - "fmt" - "os" - "regexp" - "strings" -) - -var ( - b32 = flag.Bool("b32", false, "32bit big-endian") - l32 = flag.Bool("l32", false, "32bit little-endian") - plan9 = flag.Bool("plan9", false, "plan9") - openbsd = flag.Bool("openbsd", false, "openbsd") - netbsd = flag.Bool("netbsd", false, "netbsd") - dragonfly = flag.Bool("dragonfly", false, "dragonfly") - arm = flag.Bool("arm", false, "arm") // 64-bit value should use (even, odd)-pair - tags = flag.String("tags", "", "build tags") - filename = flag.String("output", "", "output file name (standard output if omitted)") -) - -// cmdLine returns this programs's commandline arguments -func cmdLine() string { - return "go run mksyscall.go " + strings.Join(os.Args[1:], " ") -} - -// buildTags returns build tags -func buildTags() string { - return *tags -} - -// Param is function parameter -type Param struct { - Name string - Type string -} - -// usage prints the program usage -func usage() { - fmt.Fprintf(os.Stderr, "usage: go run mksyscall.go [-b32 | -l32] [-tags x,y] [file ...]\n") - os.Exit(1) -} - -// parseParamList parses parameter list and returns a slice of parameters -func parseParamList(list string) []string { - list = strings.TrimSpace(list) - if list == "" { - return []string{} - } - return regexp.MustCompile(`\s*,\s*`).Split(list, -1) -} - -// parseParam splits a parameter into name and type -func parseParam(p string) Param { - ps := regexp.MustCompile(`^(\S*) (\S*)$`).FindStringSubmatch(p) - if ps == nil { - fmt.Fprintf(os.Stderr, "malformed parameter: %s\n", p) - os.Exit(1) - } - return Param{ps[1], ps[2]} -} - -func main() { - // Get the OS and architecture (using GOARCH_TARGET if it exists) - goos := os.Getenv("GOOS") - if goos == "" { - fmt.Fprintln(os.Stderr, "GOOS not defined in environment") - os.Exit(1) - } - goarch := os.Getenv("GOARCH_TARGET") - if goarch == "" { - goarch = os.Getenv("GOARCH") - } - - // Check that we are using the Docker-based build system if we should - if goos == "linux" { - if os.Getenv("GOLANG_SYS_BUILD") != "docker" { - fmt.Fprintf(os.Stderr, "In the Docker-based build system, mksyscall should not be called directly.\n") - fmt.Fprintf(os.Stderr, "See README.md\n") - os.Exit(1) - } - } - - flag.Usage = usage - flag.Parse() - if len(flag.Args()) <= 0 { - fmt.Fprintf(os.Stderr, "no files to parse provided\n") - usage() - } - - endianness := "" - if *b32 { - endianness = "big-endian" - } else if *l32 { - endianness = "little-endian" - } - - libc := false - if goos == "darwin" && (strings.Contains(buildTags(), ",go1.12") || strings.Contains(buildTags(), ",go1.13")) { - libc = true - } - trampolines := map[string]bool{} - - text := "" - for _, path := range flag.Args() { - file, err := os.Open(path) - if err != nil { - fmt.Fprintf(os.Stderr, err.Error()) - os.Exit(1) - } - s := bufio.NewScanner(file) - for s.Scan() { - t := s.Text() - t = strings.TrimSpace(t) - t = regexp.MustCompile(`\s+`).ReplaceAllString(t, ` `) - nonblock := regexp.MustCompile(`^\/\/sysnb `).FindStringSubmatch(t) - if regexp.MustCompile(`^\/\/sys `).FindStringSubmatch(t) == nil && nonblock == nil { - continue - } - - // Line must be of the form - // func Open(path string, mode int, perm int) (fd int, errno error) - // Split into name, in params, out params. - f := regexp.MustCompile(`^\/\/sys(nb)? (\w+)\(([^()]*)\)\s*(?:\(([^()]+)\))?\s*(?:=\s*((?i)SYS_[A-Z0-9_]+))?$`).FindStringSubmatch(t) - if f == nil { - fmt.Fprintf(os.Stderr, "%s:%s\nmalformed //sys declaration\n", path, t) - os.Exit(1) - } - funct, inps, outps, sysname := f[2], f[3], f[4], f[5] - - // ClockGettime doesn't have a syscall number on Darwin, only generate libc wrappers. - if goos == "darwin" && !libc && funct == "ClockGettime" { - continue - } - - // Split argument lists on comma. - in := parseParamList(inps) - out := parseParamList(outps) - - // Try in vain to keep people from editing this file. - // The theory is that they jump into the middle of the file - // without reading the header. - text += "// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT\n\n" - - // Go function header. - outDecl := "" - if len(out) > 0 { - outDecl = fmt.Sprintf(" (%s)", strings.Join(out, ", ")) - } - text += fmt.Sprintf("func %s(%s)%s {\n", funct, strings.Join(in, ", "), outDecl) - - // Check if err return available - errvar := "" - for _, param := range out { - p := parseParam(param) - if p.Type == "error" { - errvar = p.Name - break - } - } - - // Prepare arguments to Syscall. - var args []string - n := 0 - for _, param := range in { - p := parseParam(param) - if regexp.MustCompile(`^\*`).FindStringSubmatch(p.Type) != nil { - args = append(args, "uintptr(unsafe.Pointer("+p.Name+"))") - } else if p.Type == "string" && errvar != "" { - text += fmt.Sprintf("\tvar _p%d *byte\n", n) - text += fmt.Sprintf("\t_p%d, %s = BytePtrFromString(%s)\n", n, errvar, p.Name) - text += fmt.Sprintf("\tif %s != nil {\n\t\treturn\n\t}\n", errvar) - args = append(args, fmt.Sprintf("uintptr(unsafe.Pointer(_p%d))", n)) - n++ - } else if p.Type == "string" { - fmt.Fprintf(os.Stderr, path+":"+funct+" uses string arguments, but has no error return\n") - text += fmt.Sprintf("\tvar _p%d *byte\n", n) - text += fmt.Sprintf("\t_p%d, _ = BytePtrFromString(%s)\n", n, p.Name) - args = append(args, fmt.Sprintf("uintptr(unsafe.Pointer(_p%d))", n)) - n++ - } else if regexp.MustCompile(`^\[\](.*)`).FindStringSubmatch(p.Type) != nil { - // Convert slice into pointer, length. - // Have to be careful not to take address of &a[0] if len == 0: - // pass dummy pointer in that case. - // Used to pass nil, but some OSes or simulators reject write(fd, nil, 0). - text += fmt.Sprintf("\tvar _p%d unsafe.Pointer\n", n) - text += fmt.Sprintf("\tif len(%s) > 0 {\n\t\t_p%d = unsafe.Pointer(&%s[0])\n\t}", p.Name, n, p.Name) - text += fmt.Sprintf(" else {\n\t\t_p%d = unsafe.Pointer(&_zero)\n\t}\n", n) - args = append(args, fmt.Sprintf("uintptr(_p%d)", n), fmt.Sprintf("uintptr(len(%s))", p.Name)) - n++ - } else if p.Type == "int64" && (*openbsd || *netbsd) { - args = append(args, "0") - if endianness == "big-endian" { - args = append(args, fmt.Sprintf("uintptr(%s>>32)", p.Name), fmt.Sprintf("uintptr(%s)", p.Name)) - } else if endianness == "little-endian" { - args = append(args, fmt.Sprintf("uintptr(%s)", p.Name), fmt.Sprintf("uintptr(%s>>32)", p.Name)) - } else { - args = append(args, fmt.Sprintf("uintptr(%s)", p.Name)) - } - } else if p.Type == "int64" && *dragonfly { - if regexp.MustCompile(`^(?i)extp(read|write)`).FindStringSubmatch(funct) == nil { - args = append(args, "0") - } - if endianness == "big-endian" { - args = append(args, fmt.Sprintf("uintptr(%s>>32)", p.Name), fmt.Sprintf("uintptr(%s)", p.Name)) - } else if endianness == "little-endian" { - args = append(args, fmt.Sprintf("uintptr(%s)", p.Name), fmt.Sprintf("uintptr(%s>>32)", p.Name)) - } else { - args = append(args, fmt.Sprintf("uintptr(%s)", p.Name)) - } - } else if (p.Type == "int64" || p.Type == "uint64") && endianness != "" { - if len(args)%2 == 1 && *arm { - // arm abi specifies 64-bit argument uses - // (even, odd) pair - args = append(args, "0") - } - if endianness == "big-endian" { - args = append(args, fmt.Sprintf("uintptr(%s>>32)", p.Name), fmt.Sprintf("uintptr(%s)", p.Name)) - } else { - args = append(args, fmt.Sprintf("uintptr(%s)", p.Name), fmt.Sprintf("uintptr(%s>>32)", p.Name)) - } - } else { - args = append(args, fmt.Sprintf("uintptr(%s)", p.Name)) - } - } - - // Determine which form to use; pad args with zeros. - asm := "Syscall" - if nonblock != nil { - if errvar == "" && goos == "linux" { - asm = "RawSyscallNoError" - } else { - asm = "RawSyscall" - } - } else { - if errvar == "" && goos == "linux" { - asm = "SyscallNoError" - } - } - if len(args) <= 3 { - for len(args) < 3 { - args = append(args, "0") - } - } else if len(args) <= 6 { - asm += "6" - for len(args) < 6 { - args = append(args, "0") - } - } else if len(args) <= 9 { - asm += "9" - for len(args) < 9 { - args = append(args, "0") - } - } else { - fmt.Fprintf(os.Stderr, "%s:%s too many arguments to system call\n", path, funct) - } - - // System call number. - if sysname == "" { - sysname = "SYS_" + funct - sysname = regexp.MustCompile(`([a-z])([A-Z])`).ReplaceAllString(sysname, `${1}_$2`) - sysname = strings.ToUpper(sysname) - } - - var libcFn string - if libc { - asm = "syscall_" + strings.ToLower(asm[:1]) + asm[1:] // internal syscall call - sysname = strings.TrimPrefix(sysname, "SYS_") // remove SYS_ - sysname = strings.ToLower(sysname) // lowercase - libcFn = sysname - sysname = "funcPC(libc_" + sysname + "_trampoline)" - } - - // Actual call. - arglist := strings.Join(args, ", ") - call := fmt.Sprintf("%s(%s, %s)", asm, sysname, arglist) - - // Assign return values. - body := "" - ret := []string{"_", "_", "_"} - doErrno := false - for i := 0; i < len(out); i++ { - p := parseParam(out[i]) - reg := "" - if p.Name == "err" && !*plan9 { - reg = "e1" - ret[2] = reg - doErrno = true - } else if p.Name == "err" && *plan9 { - ret[0] = "r0" - ret[2] = "e1" - break - } else { - reg = fmt.Sprintf("r%d", i) - ret[i] = reg - } - if p.Type == "bool" { - reg = fmt.Sprintf("%s != 0", reg) - } - if p.Type == "int64" && endianness != "" { - // 64-bit number in r1:r0 or r0:r1. - if i+2 > len(out) { - fmt.Fprintf(os.Stderr, "%s:%s not enough registers for int64 return\n", path, funct) - } - if endianness == "big-endian" { - reg = fmt.Sprintf("int64(r%d)<<32 | int64(r%d)", i, i+1) - } else { - reg = fmt.Sprintf("int64(r%d)<<32 | int64(r%d)", i+1, i) - } - ret[i] = fmt.Sprintf("r%d", i) - ret[i+1] = fmt.Sprintf("r%d", i+1) - } - if reg != "e1" || *plan9 { - body += fmt.Sprintf("\t%s = %s(%s)\n", p.Name, p.Type, reg) - } - } - if ret[0] == "_" && ret[1] == "_" && ret[2] == "_" { - text += fmt.Sprintf("\t%s\n", call) - } else { - if errvar == "" && goos == "linux" { - // raw syscall without error on Linux, see golang.org/issue/22924 - text += fmt.Sprintf("\t%s, %s := %s\n", ret[0], ret[1], call) - } else { - text += fmt.Sprintf("\t%s, %s, %s := %s\n", ret[0], ret[1], ret[2], call) - } - } - text += body - - if *plan9 && ret[2] == "e1" { - text += "\tif int32(r0) == -1 {\n" - text += "\t\terr = e1\n" - text += "\t}\n" - } else if doErrno { - text += "\tif e1 != 0 {\n" - text += "\t\terr = errnoErr(e1)\n" - text += "\t}\n" - } - text += "\treturn\n" - text += "}\n\n" - - if libc && !trampolines[libcFn] { - // some system calls share a trampoline, like read and readlen. - trampolines[libcFn] = true - // Declare assembly trampoline. - text += fmt.Sprintf("func libc_%s_trampoline()\n", libcFn) - // Assembly trampoline calls the libc_* function, which this magic - // redirects to use the function from libSystem. - text += fmt.Sprintf("//go:linkname libc_%s libc_%s\n", libcFn, libcFn) - text += fmt.Sprintf("//go:cgo_import_dynamic libc_%s %s \"/usr/lib/libSystem.B.dylib\"\n", libcFn, libcFn) - text += "\n" - } - } - if err := s.Err(); err != nil { - fmt.Fprintf(os.Stderr, err.Error()) - os.Exit(1) - } - file.Close() - } - fmt.Printf(srcTemplate, cmdLine(), buildTags(), text) -} - -const srcTemplate = `// %s -// Code generated by the command above; see README.md. DO NOT EDIT. - -// +build %s - -package unix - -import ( - "syscall" - "unsafe" -) - -var _ syscall.Errno - -%s -` diff --git a/vendor/golang.org/x/sys/unix/mksyscall_aix_ppc.go b/vendor/golang.org/x/sys/unix/mksyscall_aix_ppc.go deleted file mode 100644 index 3be3cdfc3..000000000 --- a/vendor/golang.org/x/sys/unix/mksyscall_aix_ppc.go +++ /dev/null @@ -1,415 +0,0 @@ -// Copyright 2019 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -// +build ignore - -/* -This program reads a file containing function prototypes -(like syscall_aix.go) and generates system call bodies. -The prototypes are marked by lines beginning with "//sys" -and read like func declarations if //sys is replaced by func, but: - * The parameter lists must give a name for each argument. - This includes return parameters. - * The parameter lists must give a type for each argument: - the (x, y, z int) shorthand is not allowed. - * If the return parameter is an error number, it must be named err. - * If go func name needs to be different than its libc name, - * or the function is not in libc, name could be specified - * at the end, after "=" sign, like - //sys getsockopt(s int, level int, name int, val uintptr, vallen *_Socklen) (err error) = libsocket.getsockopt -*/ -package main - -import ( - "bufio" - "flag" - "fmt" - "os" - "regexp" - "strings" -) - -var ( - b32 = flag.Bool("b32", false, "32bit big-endian") - l32 = flag.Bool("l32", false, "32bit little-endian") - aix = flag.Bool("aix", false, "aix") - tags = flag.String("tags", "", "build tags") -) - -// cmdLine returns this programs's commandline arguments -func cmdLine() string { - return "go run mksyscall_aix_ppc.go " + strings.Join(os.Args[1:], " ") -} - -// buildTags returns build tags -func buildTags() string { - return *tags -} - -// Param is function parameter -type Param struct { - Name string - Type string -} - -// usage prints the program usage -func usage() { - fmt.Fprintf(os.Stderr, "usage: go run mksyscall_aix_ppc.go [-b32 | -l32] [-tags x,y] [file ...]\n") - os.Exit(1) -} - -// parseParamList parses parameter list and returns a slice of parameters -func parseParamList(list string) []string { - list = strings.TrimSpace(list) - if list == "" { - return []string{} - } - return regexp.MustCompile(`\s*,\s*`).Split(list, -1) -} - -// parseParam splits a parameter into name and type -func parseParam(p string) Param { - ps := regexp.MustCompile(`^(\S*) (\S*)$`).FindStringSubmatch(p) - if ps == nil { - fmt.Fprintf(os.Stderr, "malformed parameter: %s\n", p) - os.Exit(1) - } - return Param{ps[1], ps[2]} -} - -func main() { - flag.Usage = usage - flag.Parse() - if len(flag.Args()) <= 0 { - fmt.Fprintf(os.Stderr, "no files to parse provided\n") - usage() - } - - endianness := "" - if *b32 { - endianness = "big-endian" - } else if *l32 { - endianness = "little-endian" - } - - pack := "" - text := "" - cExtern := "/*\n#include \n#include \n" - for _, path := range flag.Args() { - file, err := os.Open(path) - if err != nil { - fmt.Fprintf(os.Stderr, err.Error()) - os.Exit(1) - } - s := bufio.NewScanner(file) - for s.Scan() { - t := s.Text() - t = strings.TrimSpace(t) - t = regexp.MustCompile(`\s+`).ReplaceAllString(t, ` `) - if p := regexp.MustCompile(`^package (\S+)$`).FindStringSubmatch(t); p != nil && pack == "" { - pack = p[1] - } - nonblock := regexp.MustCompile(`^\/\/sysnb `).FindStringSubmatch(t) - if regexp.MustCompile(`^\/\/sys `).FindStringSubmatch(t) == nil && nonblock == nil { - continue - } - - // Line must be of the form - // func Open(path string, mode int, perm int) (fd int, err error) - // Split into name, in params, out params. - f := regexp.MustCompile(`^\/\/sys(nb)? (\w+)\(([^()]*)\)\s*(?:\(([^()]+)\))?\s*(?:=\s*(?:(\w*)\.)?(\w*))?$`).FindStringSubmatch(t) - if f == nil { - fmt.Fprintf(os.Stderr, "%s:%s\nmalformed //sys declaration\n", path, t) - os.Exit(1) - } - funct, inps, outps, modname, sysname := f[2], f[3], f[4], f[5], f[6] - - // Split argument lists on comma. - in := parseParamList(inps) - out := parseParamList(outps) - - inps = strings.Join(in, ", ") - outps = strings.Join(out, ", ") - - // Try in vain to keep people from editing this file. - // The theory is that they jump into the middle of the file - // without reading the header. - text += "// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT\n\n" - - // Check if value return, err return available - errvar := "" - retvar := "" - rettype := "" - for _, param := range out { - p := parseParam(param) - if p.Type == "error" { - errvar = p.Name - } else { - retvar = p.Name - rettype = p.Type - } - } - - // System call name. - if sysname == "" { - sysname = funct - } - sysname = regexp.MustCompile(`([a-z])([A-Z])`).ReplaceAllString(sysname, `${1}_$2`) - sysname = strings.ToLower(sysname) // All libc functions are lowercase. - - cRettype := "" - if rettype == "unsafe.Pointer" { - cRettype = "uintptr_t" - } else if rettype == "uintptr" { - cRettype = "uintptr_t" - } else if regexp.MustCompile(`^_`).FindStringSubmatch(rettype) != nil { - cRettype = "uintptr_t" - } else if rettype == "int" { - cRettype = "int" - } else if rettype == "int32" { - cRettype = "int" - } else if rettype == "int64" { - cRettype = "long long" - } else if rettype == "uint32" { - cRettype = "unsigned int" - } else if rettype == "uint64" { - cRettype = "unsigned long long" - } else { - cRettype = "int" - } - if sysname == "exit" { - cRettype = "void" - } - - // Change p.Types to c - var cIn []string - for _, param := range in { - p := parseParam(param) - if regexp.MustCompile(`^\*`).FindStringSubmatch(p.Type) != nil { - cIn = append(cIn, "uintptr_t") - } else if p.Type == "string" { - cIn = append(cIn, "uintptr_t") - } else if regexp.MustCompile(`^\[\](.*)`).FindStringSubmatch(p.Type) != nil { - cIn = append(cIn, "uintptr_t", "size_t") - } else if p.Type == "unsafe.Pointer" { - cIn = append(cIn, "uintptr_t") - } else if p.Type == "uintptr" { - cIn = append(cIn, "uintptr_t") - } else if regexp.MustCompile(`^_`).FindStringSubmatch(p.Type) != nil { - cIn = append(cIn, "uintptr_t") - } else if p.Type == "int" { - cIn = append(cIn, "int") - } else if p.Type == "int32" { - cIn = append(cIn, "int") - } else if p.Type == "int64" { - cIn = append(cIn, "long long") - } else if p.Type == "uint32" { - cIn = append(cIn, "unsigned int") - } else if p.Type == "uint64" { - cIn = append(cIn, "unsigned long long") - } else { - cIn = append(cIn, "int") - } - } - - if funct != "fcntl" && funct != "FcntlInt" && funct != "readlen" && funct != "writelen" { - if sysname == "select" { - // select is a keyword of Go. Its name is - // changed to c_select. - cExtern += "#define c_select select\n" - } - // Imports of system calls from libc - cExtern += fmt.Sprintf("%s %s", cRettype, sysname) - cIn := strings.Join(cIn, ", ") - cExtern += fmt.Sprintf("(%s);\n", cIn) - } - - // So file name. - if *aix { - if modname == "" { - modname = "libc.a/shr_64.o" - } else { - fmt.Fprintf(os.Stderr, "%s: only syscall using libc are available\n", funct) - os.Exit(1) - } - } - - strconvfunc := "C.CString" - - // Go function header. - if outps != "" { - outps = fmt.Sprintf(" (%s)", outps) - } - if text != "" { - text += "\n" - } - - text += fmt.Sprintf("func %s(%s)%s {\n", funct, strings.Join(in, ", "), outps) - - // Prepare arguments to Syscall. - var args []string - n := 0 - argN := 0 - for _, param := range in { - p := parseParam(param) - if regexp.MustCompile(`^\*`).FindStringSubmatch(p.Type) != nil { - args = append(args, "C.uintptr_t(uintptr(unsafe.Pointer("+p.Name+")))") - } else if p.Type == "string" && errvar != "" { - text += fmt.Sprintf("\t_p%d := uintptr(unsafe.Pointer(%s(%s)))\n", n, strconvfunc, p.Name) - args = append(args, fmt.Sprintf("C.uintptr_t(_p%d)", n)) - n++ - } else if p.Type == "string" { - fmt.Fprintf(os.Stderr, path+":"+funct+" uses string arguments, but has no error return\n") - text += fmt.Sprintf("\t_p%d := uintptr(unsafe.Pointer(%s(%s)))\n", n, strconvfunc, p.Name) - args = append(args, fmt.Sprintf("C.uintptr_t(_p%d)", n)) - n++ - } else if m := regexp.MustCompile(`^\[\](.*)`).FindStringSubmatch(p.Type); m != nil { - // Convert slice into pointer, length. - // Have to be careful not to take address of &a[0] if len == 0: - // pass nil in that case. - text += fmt.Sprintf("\tvar _p%d *%s\n", n, m[1]) - text += fmt.Sprintf("\tif len(%s) > 0 {\n\t\t_p%d = &%s[0]\n\t}\n", p.Name, n, p.Name) - args = append(args, fmt.Sprintf("C.uintptr_t(uintptr(unsafe.Pointer(_p%d)))", n)) - n++ - text += fmt.Sprintf("\tvar _p%d int\n", n) - text += fmt.Sprintf("\t_p%d = len(%s)\n", n, p.Name) - args = append(args, fmt.Sprintf("C.size_t(_p%d)", n)) - n++ - } else if p.Type == "int64" && endianness != "" { - if endianness == "big-endian" { - args = append(args, fmt.Sprintf("uintptr(%s>>32)", p.Name), fmt.Sprintf("uintptr(%s)", p.Name)) - } else { - args = append(args, fmt.Sprintf("uintptr(%s)", p.Name), fmt.Sprintf("uintptr(%s>>32)", p.Name)) - } - n++ - } else if p.Type == "bool" { - text += fmt.Sprintf("\tvar _p%d uint32\n", n) - text += fmt.Sprintf("\tif %s {\n\t\t_p%d = 1\n\t} else {\n\t\t_p%d = 0\n\t}\n", p.Name, n, n) - args = append(args, fmt.Sprintf("_p%d", n)) - } else if regexp.MustCompile(`^_`).FindStringSubmatch(p.Type) != nil { - args = append(args, fmt.Sprintf("C.uintptr_t(uintptr(%s))", p.Name)) - } else if p.Type == "unsafe.Pointer" { - args = append(args, fmt.Sprintf("C.uintptr_t(uintptr(%s))", p.Name)) - } else if p.Type == "int" { - if (argN == 2) && ((funct == "readlen") || (funct == "writelen")) { - args = append(args, fmt.Sprintf("C.size_t(%s)", p.Name)) - } else if argN == 0 && funct == "fcntl" { - args = append(args, fmt.Sprintf("C.uintptr_t(%s)", p.Name)) - } else if (argN == 2) && ((funct == "fcntl") || (funct == "FcntlInt")) { - args = append(args, fmt.Sprintf("C.uintptr_t(%s)", p.Name)) - } else { - args = append(args, fmt.Sprintf("C.int(%s)", p.Name)) - } - } else if p.Type == "int32" { - args = append(args, fmt.Sprintf("C.int(%s)", p.Name)) - } else if p.Type == "int64" { - args = append(args, fmt.Sprintf("C.longlong(%s)", p.Name)) - } else if p.Type == "uint32" { - args = append(args, fmt.Sprintf("C.uint(%s)", p.Name)) - } else if p.Type == "uint64" { - args = append(args, fmt.Sprintf("C.ulonglong(%s)", p.Name)) - } else if p.Type == "uintptr" { - args = append(args, fmt.Sprintf("C.uintptr_t(%s)", p.Name)) - } else { - args = append(args, fmt.Sprintf("C.int(%s)", p.Name)) - } - argN++ - } - - // Actual call. - arglist := strings.Join(args, ", ") - call := "" - if sysname == "exit" { - if errvar != "" { - call += "er :=" - } else { - call += "" - } - } else if errvar != "" { - call += "r0,er :=" - } else if retvar != "" { - call += "r0,_ :=" - } else { - call += "" - } - if sysname == "select" { - // select is a keyword of Go. Its name is - // changed to c_select. - call += fmt.Sprintf("C.c_%s(%s)", sysname, arglist) - } else { - call += fmt.Sprintf("C.%s(%s)", sysname, arglist) - } - - // Assign return values. - body := "" - for i := 0; i < len(out); i++ { - p := parseParam(out[i]) - reg := "" - if p.Name == "err" { - reg = "e1" - } else { - reg = "r0" - } - if reg != "e1" { - body += fmt.Sprintf("\t%s = %s(%s)\n", p.Name, p.Type, reg) - } - } - - // verify return - if sysname != "exit" && errvar != "" { - if regexp.MustCompile(`^uintptr`).FindStringSubmatch(cRettype) != nil { - body += "\tif (uintptr(r0) ==^uintptr(0) && er != nil) {\n" - body += fmt.Sprintf("\t\t%s = er\n", errvar) - body += "\t}\n" - } else { - body += "\tif (r0 ==-1 && er != nil) {\n" - body += fmt.Sprintf("\t\t%s = er\n", errvar) - body += "\t}\n" - } - } else if errvar != "" { - body += "\tif (er != nil) {\n" - body += fmt.Sprintf("\t\t%s = er\n", errvar) - body += "\t}\n" - } - - text += fmt.Sprintf("\t%s\n", call) - text += body - - text += "\treturn\n" - text += "}\n" - } - if err := s.Err(); err != nil { - fmt.Fprintf(os.Stderr, err.Error()) - os.Exit(1) - } - file.Close() - } - imp := "" - if pack != "unix" { - imp = "import \"golang.org/x/sys/unix\"\n" - - } - fmt.Printf(srcTemplate, cmdLine(), buildTags(), pack, cExtern, imp, text) -} - -const srcTemplate = `// %s -// Code generated by the command above; see README.md. DO NOT EDIT. - -// +build %s - -package %s - - -%s -*/ -import "C" -import ( - "unsafe" -) - - -%s - -%s -` diff --git a/vendor/golang.org/x/sys/unix/mksyscall_aix_ppc64.go b/vendor/golang.org/x/sys/unix/mksyscall_aix_ppc64.go deleted file mode 100644 index c96009951..000000000 --- a/vendor/golang.org/x/sys/unix/mksyscall_aix_ppc64.go +++ /dev/null @@ -1,614 +0,0 @@ -// Copyright 2019 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -// +build ignore - -/* -This program reads a file containing function prototypes -(like syscall_aix.go) and generates system call bodies. -The prototypes are marked by lines beginning with "//sys" -and read like func declarations if //sys is replaced by func, but: - * The parameter lists must give a name for each argument. - This includes return parameters. - * The parameter lists must give a type for each argument: - the (x, y, z int) shorthand is not allowed. - * If the return parameter is an error number, it must be named err. - * If go func name needs to be different than its libc name, - * or the function is not in libc, name could be specified - * at the end, after "=" sign, like - //sys getsockopt(s int, level int, name int, val uintptr, vallen *_Socklen) (err error) = libsocket.getsockopt - - -This program will generate three files and handle both gc and gccgo implementation: - - zsyscall_aix_ppc64.go: the common part of each implementation (error handler, pointer creation) - - zsyscall_aix_ppc64_gc.go: gc part with //go_cgo_import_dynamic and a call to syscall6 - - zsyscall_aix_ppc64_gccgo.go: gccgo part with C function and conversion to C type. - - The generated code looks like this - -zsyscall_aix_ppc64.go -func asyscall(...) (n int, err error) { - // Pointer Creation - r1, e1 := callasyscall(...) - // Type Conversion - // Error Handler - return -} - -zsyscall_aix_ppc64_gc.go -//go:cgo_import_dynamic libc_asyscall asyscall "libc.a/shr_64.o" -//go:linkname libc_asyscall libc_asyscall -var asyscall syscallFunc - -func callasyscall(...) (r1 uintptr, e1 Errno) { - r1, _, e1 = syscall6(uintptr(unsafe.Pointer(&libc_asyscall)), "nb_args", ... ) - return -} - -zsyscall_aix_ppc64_ggcgo.go - -// int asyscall(...) - -import "C" - -func callasyscall(...) (r1 uintptr, e1 Errno) { - r1 = uintptr(C.asyscall(...)) - e1 = syscall.GetErrno() - return -} -*/ - -package main - -import ( - "bufio" - "flag" - "fmt" - "io/ioutil" - "os" - "regexp" - "strings" -) - -var ( - b32 = flag.Bool("b32", false, "32bit big-endian") - l32 = flag.Bool("l32", false, "32bit little-endian") - aix = flag.Bool("aix", false, "aix") - tags = flag.String("tags", "", "build tags") -) - -// cmdLine returns this programs's commandline arguments -func cmdLine() string { - return "go run mksyscall_aix_ppc64.go " + strings.Join(os.Args[1:], " ") -} - -// buildTags returns build tags -func buildTags() string { - return *tags -} - -// Param is function parameter -type Param struct { - Name string - Type string -} - -// usage prints the program usage -func usage() { - fmt.Fprintf(os.Stderr, "usage: go run mksyscall_aix_ppc64.go [-b32 | -l32] [-tags x,y] [file ...]\n") - os.Exit(1) -} - -// parseParamList parses parameter list and returns a slice of parameters -func parseParamList(list string) []string { - list = strings.TrimSpace(list) - if list == "" { - return []string{} - } - return regexp.MustCompile(`\s*,\s*`).Split(list, -1) -} - -// parseParam splits a parameter into name and type -func parseParam(p string) Param { - ps := regexp.MustCompile(`^(\S*) (\S*)$`).FindStringSubmatch(p) - if ps == nil { - fmt.Fprintf(os.Stderr, "malformed parameter: %s\n", p) - os.Exit(1) - } - return Param{ps[1], ps[2]} -} - -func main() { - flag.Usage = usage - flag.Parse() - if len(flag.Args()) <= 0 { - fmt.Fprintf(os.Stderr, "no files to parse provided\n") - usage() - } - - endianness := "" - if *b32 { - endianness = "big-endian" - } else if *l32 { - endianness = "little-endian" - } - - pack := "" - // GCCGO - textgccgo := "" - cExtern := "/*\n#include \n" - // GC - textgc := "" - dynimports := "" - linknames := "" - var vars []string - // COMMON - textcommon := "" - for _, path := range flag.Args() { - file, err := os.Open(path) - if err != nil { - fmt.Fprintf(os.Stderr, err.Error()) - os.Exit(1) - } - s := bufio.NewScanner(file) - for s.Scan() { - t := s.Text() - t = strings.TrimSpace(t) - t = regexp.MustCompile(`\s+`).ReplaceAllString(t, ` `) - if p := regexp.MustCompile(`^package (\S+)$`).FindStringSubmatch(t); p != nil && pack == "" { - pack = p[1] - } - nonblock := regexp.MustCompile(`^\/\/sysnb `).FindStringSubmatch(t) - if regexp.MustCompile(`^\/\/sys `).FindStringSubmatch(t) == nil && nonblock == nil { - continue - } - - // Line must be of the form - // func Open(path string, mode int, perm int) (fd int, err error) - // Split into name, in params, out params. - f := regexp.MustCompile(`^\/\/sys(nb)? (\w+)\(([^()]*)\)\s*(?:\(([^()]+)\))?\s*(?:=\s*(?:(\w*)\.)?(\w*))?$`).FindStringSubmatch(t) - if f == nil { - fmt.Fprintf(os.Stderr, "%s:%s\nmalformed //sys declaration\n", path, t) - os.Exit(1) - } - funct, inps, outps, modname, sysname := f[2], f[3], f[4], f[5], f[6] - - // Split argument lists on comma. - in := parseParamList(inps) - out := parseParamList(outps) - - inps = strings.Join(in, ", ") - outps = strings.Join(out, ", ") - - if sysname == "" { - sysname = funct - } - - onlyCommon := false - if funct == "readlen" || funct == "writelen" || funct == "FcntlInt" || funct == "FcntlFlock" { - // This function call another syscall which is already implemented. - // Therefore, the gc and gccgo part must not be generated. - onlyCommon = true - } - - // Try in vain to keep people from editing this file. - // The theory is that they jump into the middle of the file - // without reading the header. - - textcommon += "// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT\n\n" - if !onlyCommon { - textgccgo += "// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT\n\n" - textgc += "// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT\n\n" - } - - // Check if value return, err return available - errvar := "" - rettype := "" - for _, param := range out { - p := parseParam(param) - if p.Type == "error" { - errvar = p.Name - } else { - rettype = p.Type - } - } - - sysname = regexp.MustCompile(`([a-z])([A-Z])`).ReplaceAllString(sysname, `${1}_$2`) - sysname = strings.ToLower(sysname) // All libc functions are lowercase. - - // GCCGO Prototype return type - cRettype := "" - if rettype == "unsafe.Pointer" { - cRettype = "uintptr_t" - } else if rettype == "uintptr" { - cRettype = "uintptr_t" - } else if regexp.MustCompile(`^_`).FindStringSubmatch(rettype) != nil { - cRettype = "uintptr_t" - } else if rettype == "int" { - cRettype = "int" - } else if rettype == "int32" { - cRettype = "int" - } else if rettype == "int64" { - cRettype = "long long" - } else if rettype == "uint32" { - cRettype = "unsigned int" - } else if rettype == "uint64" { - cRettype = "unsigned long long" - } else { - cRettype = "int" - } - if sysname == "exit" { - cRettype = "void" - } - - // GCCGO Prototype arguments type - var cIn []string - for i, param := range in { - p := parseParam(param) - if regexp.MustCompile(`^\*`).FindStringSubmatch(p.Type) != nil { - cIn = append(cIn, "uintptr_t") - } else if p.Type == "string" { - cIn = append(cIn, "uintptr_t") - } else if regexp.MustCompile(`^\[\](.*)`).FindStringSubmatch(p.Type) != nil { - cIn = append(cIn, "uintptr_t", "size_t") - } else if p.Type == "unsafe.Pointer" { - cIn = append(cIn, "uintptr_t") - } else if p.Type == "uintptr" { - cIn = append(cIn, "uintptr_t") - } else if regexp.MustCompile(`^_`).FindStringSubmatch(p.Type) != nil { - cIn = append(cIn, "uintptr_t") - } else if p.Type == "int" { - if (i == 0 || i == 2) && funct == "fcntl" { - // These fcntl arguments needs to be uintptr to be able to call FcntlInt and FcntlFlock - cIn = append(cIn, "uintptr_t") - } else { - cIn = append(cIn, "int") - } - - } else if p.Type == "int32" { - cIn = append(cIn, "int") - } else if p.Type == "int64" { - cIn = append(cIn, "long long") - } else if p.Type == "uint32" { - cIn = append(cIn, "unsigned int") - } else if p.Type == "uint64" { - cIn = append(cIn, "unsigned long long") - } else { - cIn = append(cIn, "int") - } - } - - if !onlyCommon { - // GCCGO Prototype Generation - // Imports of system calls from libc - if sysname == "select" { - // select is a keyword of Go. Its name is - // changed to c_select. - cExtern += "#define c_select select\n" - } - cExtern += fmt.Sprintf("%s %s", cRettype, sysname) - cIn := strings.Join(cIn, ", ") - cExtern += fmt.Sprintf("(%s);\n", cIn) - } - // GC Library name - if modname == "" { - modname = "libc.a/shr_64.o" - } else { - fmt.Fprintf(os.Stderr, "%s: only syscall using libc are available\n", funct) - os.Exit(1) - } - sysvarname := fmt.Sprintf("libc_%s", sysname) - - if !onlyCommon { - // GC Runtime import of function to allow cross-platform builds. - dynimports += fmt.Sprintf("//go:cgo_import_dynamic %s %s \"%s\"\n", sysvarname, sysname, modname) - // GC Link symbol to proc address variable. - linknames += fmt.Sprintf("//go:linkname %s %s\n", sysvarname, sysvarname) - // GC Library proc address variable. - vars = append(vars, sysvarname) - } - - strconvfunc := "BytePtrFromString" - strconvtype := "*byte" - - // Go function header. - if outps != "" { - outps = fmt.Sprintf(" (%s)", outps) - } - if textcommon != "" { - textcommon += "\n" - } - - textcommon += fmt.Sprintf("func %s(%s)%s {\n", funct, strings.Join(in, ", "), outps) - - // Prepare arguments tocall. - var argscommon []string // Arguments in the common part - var argscall []string // Arguments for call prototype - var argsgc []string // Arguments for gc call (with syscall6) - var argsgccgo []string // Arguments for gccgo call (with C.name_of_syscall) - n := 0 - argN := 0 - for _, param := range in { - p := parseParam(param) - if regexp.MustCompile(`^\*`).FindStringSubmatch(p.Type) != nil { - argscommon = append(argscommon, fmt.Sprintf("uintptr(unsafe.Pointer(%s))", p.Name)) - argscall = append(argscall, fmt.Sprintf("%s uintptr", p.Name)) - argsgc = append(argsgc, p.Name) - argsgccgo = append(argsgccgo, fmt.Sprintf("C.uintptr_t(%s)", p.Name)) - } else if p.Type == "string" && errvar != "" { - textcommon += fmt.Sprintf("\tvar _p%d %s\n", n, strconvtype) - textcommon += fmt.Sprintf("\t_p%d, %s = %s(%s)\n", n, errvar, strconvfunc, p.Name) - textcommon += fmt.Sprintf("\tif %s != nil {\n\t\treturn\n\t}\n", errvar) - - argscommon = append(argscommon, fmt.Sprintf("uintptr(unsafe.Pointer(_p%d))", n)) - argscall = append(argscall, fmt.Sprintf("_p%d uintptr ", n)) - argsgc = append(argsgc, fmt.Sprintf("_p%d", n)) - argsgccgo = append(argsgccgo, fmt.Sprintf("C.uintptr_t(_p%d)", n)) - n++ - } else if p.Type == "string" { - fmt.Fprintf(os.Stderr, path+":"+funct+" uses string arguments, but has no error return\n") - textcommon += fmt.Sprintf("\tvar _p%d %s\n", n, strconvtype) - textcommon += fmt.Sprintf("\t_p%d, %s = %s(%s)\n", n, errvar, strconvfunc, p.Name) - textcommon += fmt.Sprintf("\tif %s != nil {\n\t\treturn\n\t}\n", errvar) - - argscommon = append(argscommon, fmt.Sprintf("uintptr(unsafe.Pointer(_p%d))", n)) - argscall = append(argscall, fmt.Sprintf("_p%d uintptr", n)) - argsgc = append(argsgc, fmt.Sprintf("_p%d", n)) - argsgccgo = append(argsgccgo, fmt.Sprintf("C.uintptr_t(_p%d)", n)) - n++ - } else if m := regexp.MustCompile(`^\[\](.*)`).FindStringSubmatch(p.Type); m != nil { - // Convert slice into pointer, length. - // Have to be careful not to take address of &a[0] if len == 0: - // pass nil in that case. - textcommon += fmt.Sprintf("\tvar _p%d *%s\n", n, m[1]) - textcommon += fmt.Sprintf("\tif len(%s) > 0 {\n\t\t_p%d = &%s[0]\n\t}\n", p.Name, n, p.Name) - argscommon = append(argscommon, fmt.Sprintf("uintptr(unsafe.Pointer(_p%d))", n), fmt.Sprintf("len(%s)", p.Name)) - argscall = append(argscall, fmt.Sprintf("_p%d uintptr", n), fmt.Sprintf("_lenp%d int", n)) - argsgc = append(argsgc, fmt.Sprintf("_p%d", n), fmt.Sprintf("uintptr(_lenp%d)", n)) - argsgccgo = append(argsgccgo, fmt.Sprintf("C.uintptr_t(_p%d)", n), fmt.Sprintf("C.size_t(_lenp%d)", n)) - n++ - } else if p.Type == "int64" && endianness != "" { - fmt.Fprintf(os.Stderr, path+":"+funct+" uses int64 with 32 bits mode. Case not yet implemented\n") - } else if p.Type == "bool" { - fmt.Fprintf(os.Stderr, path+":"+funct+" uses bool. Case not yet implemented\n") - } else if regexp.MustCompile(`^_`).FindStringSubmatch(p.Type) != nil || p.Type == "unsafe.Pointer" { - argscommon = append(argscommon, fmt.Sprintf("uintptr(%s)", p.Name)) - argscall = append(argscall, fmt.Sprintf("%s uintptr", p.Name)) - argsgc = append(argsgc, p.Name) - argsgccgo = append(argsgccgo, fmt.Sprintf("C.uintptr_t(%s)", p.Name)) - } else if p.Type == "int" { - if (argN == 0 || argN == 2) && ((funct == "fcntl") || (funct == "FcntlInt") || (funct == "FcntlFlock")) { - // These fcntl arguments need to be uintptr to be able to call FcntlInt and FcntlFlock - argscommon = append(argscommon, fmt.Sprintf("uintptr(%s)", p.Name)) - argscall = append(argscall, fmt.Sprintf("%s uintptr", p.Name)) - argsgc = append(argsgc, p.Name) - argsgccgo = append(argsgccgo, fmt.Sprintf("C.uintptr_t(%s)", p.Name)) - - } else { - argscommon = append(argscommon, p.Name) - argscall = append(argscall, fmt.Sprintf("%s int", p.Name)) - argsgc = append(argsgc, fmt.Sprintf("uintptr(%s)", p.Name)) - argsgccgo = append(argsgccgo, fmt.Sprintf("C.int(%s)", p.Name)) - } - } else if p.Type == "int32" { - argscommon = append(argscommon, p.Name) - argscall = append(argscall, fmt.Sprintf("%s int32", p.Name)) - argsgc = append(argsgc, fmt.Sprintf("uintptr(%s)", p.Name)) - argsgccgo = append(argsgccgo, fmt.Sprintf("C.int(%s)", p.Name)) - } else if p.Type == "int64" { - argscommon = append(argscommon, p.Name) - argscall = append(argscall, fmt.Sprintf("%s int64", p.Name)) - argsgc = append(argsgc, fmt.Sprintf("uintptr(%s)", p.Name)) - argsgccgo = append(argsgccgo, fmt.Sprintf("C.longlong(%s)", p.Name)) - } else if p.Type == "uint32" { - argscommon = append(argscommon, p.Name) - argscall = append(argscall, fmt.Sprintf("%s uint32", p.Name)) - argsgc = append(argsgc, fmt.Sprintf("uintptr(%s)", p.Name)) - argsgccgo = append(argsgccgo, fmt.Sprintf("C.uint(%s)", p.Name)) - } else if p.Type == "uint64" { - argscommon = append(argscommon, p.Name) - argscall = append(argscall, fmt.Sprintf("%s uint64", p.Name)) - argsgc = append(argsgc, fmt.Sprintf("uintptr(%s)", p.Name)) - argsgccgo = append(argsgccgo, fmt.Sprintf("C.ulonglong(%s)", p.Name)) - } else if p.Type == "uintptr" { - argscommon = append(argscommon, p.Name) - argscall = append(argscall, fmt.Sprintf("%s uintptr", p.Name)) - argsgc = append(argsgc, p.Name) - argsgccgo = append(argsgccgo, fmt.Sprintf("C.uintptr_t(%s)", p.Name)) - } else { - argscommon = append(argscommon, fmt.Sprintf("int(%s)", p.Name)) - argscall = append(argscall, fmt.Sprintf("%s int", p.Name)) - argsgc = append(argsgc, fmt.Sprintf("uintptr(%s)", p.Name)) - argsgccgo = append(argsgccgo, fmt.Sprintf("C.int(%s)", p.Name)) - } - argN++ - } - nargs := len(argsgc) - - // COMMON function generation - argscommonlist := strings.Join(argscommon, ", ") - callcommon := fmt.Sprintf("call%s(%s)", sysname, argscommonlist) - ret := []string{"_", "_"} - body := "" - doErrno := false - for i := 0; i < len(out); i++ { - p := parseParam(out[i]) - reg := "" - if p.Name == "err" { - reg = "e1" - ret[1] = reg - doErrno = true - } else { - reg = "r0" - ret[0] = reg - } - if p.Type == "bool" { - reg = fmt.Sprintf("%s != 0", reg) - } - if reg != "e1" { - body += fmt.Sprintf("\t%s = %s(%s)\n", p.Name, p.Type, reg) - } - } - if ret[0] == "_" && ret[1] == "_" { - textcommon += fmt.Sprintf("\t%s\n", callcommon) - } else { - textcommon += fmt.Sprintf("\t%s, %s := %s\n", ret[0], ret[1], callcommon) - } - textcommon += body - - if doErrno { - textcommon += "\tif e1 != 0 {\n" - textcommon += "\t\terr = errnoErr(e1)\n" - textcommon += "\t}\n" - } - textcommon += "\treturn\n" - textcommon += "}\n" - - if onlyCommon { - continue - } - - // CALL Prototype - callProto := fmt.Sprintf("func call%s(%s) (r1 uintptr, e1 Errno) {\n", sysname, strings.Join(argscall, ", ")) - - // GC function generation - asm := "syscall6" - if nonblock != nil { - asm = "rawSyscall6" - } - - if len(argsgc) <= 6 { - for len(argsgc) < 6 { - argsgc = append(argsgc, "0") - } - } else { - fmt.Fprintf(os.Stderr, "%s: too many arguments to system call", funct) - os.Exit(1) - } - argsgclist := strings.Join(argsgc, ", ") - callgc := fmt.Sprintf("%s(uintptr(unsafe.Pointer(&%s)), %d, %s)", asm, sysvarname, nargs, argsgclist) - - textgc += callProto - textgc += fmt.Sprintf("\tr1, _, e1 = %s\n", callgc) - textgc += "\treturn\n}\n" - - // GCCGO function generation - argsgccgolist := strings.Join(argsgccgo, ", ") - var callgccgo string - if sysname == "select" { - // select is a keyword of Go. Its name is - // changed to c_select. - callgccgo = fmt.Sprintf("C.c_%s(%s)", sysname, argsgccgolist) - } else { - callgccgo = fmt.Sprintf("C.%s(%s)", sysname, argsgccgolist) - } - textgccgo += callProto - textgccgo += fmt.Sprintf("\tr1 = uintptr(%s)\n", callgccgo) - textgccgo += "\te1 = syscall.GetErrno()\n" - textgccgo += "\treturn\n}\n" - } - if err := s.Err(); err != nil { - fmt.Fprintf(os.Stderr, err.Error()) - os.Exit(1) - } - file.Close() - } - imp := "" - if pack != "unix" { - imp = "import \"golang.org/x/sys/unix\"\n" - - } - - // Print zsyscall_aix_ppc64.go - err := ioutil.WriteFile("zsyscall_aix_ppc64.go", - []byte(fmt.Sprintf(srcTemplate1, cmdLine(), buildTags(), pack, imp, textcommon)), - 0644) - if err != nil { - fmt.Fprintf(os.Stderr, err.Error()) - os.Exit(1) - } - - // Print zsyscall_aix_ppc64_gc.go - vardecls := "\t" + strings.Join(vars, ",\n\t") - vardecls += " syscallFunc" - err = ioutil.WriteFile("zsyscall_aix_ppc64_gc.go", - []byte(fmt.Sprintf(srcTemplate2, cmdLine(), buildTags(), pack, imp, dynimports, linknames, vardecls, textgc)), - 0644) - if err != nil { - fmt.Fprintf(os.Stderr, err.Error()) - os.Exit(1) - } - - // Print zsyscall_aix_ppc64_gccgo.go - err = ioutil.WriteFile("zsyscall_aix_ppc64_gccgo.go", - []byte(fmt.Sprintf(srcTemplate3, cmdLine(), buildTags(), pack, cExtern, imp, textgccgo)), - 0644) - if err != nil { - fmt.Fprintf(os.Stderr, err.Error()) - os.Exit(1) - } -} - -const srcTemplate1 = `// %s -// Code generated by the command above; see README.md. DO NOT EDIT. - -// +build %s - -package %s - -import ( - "unsafe" -) - - -%s - -%s -` -const srcTemplate2 = `// %s -// Code generated by the command above; see README.md. DO NOT EDIT. - -// +build %s -// +build !gccgo - -package %s - -import ( - "unsafe" -) -%s -%s -%s -type syscallFunc uintptr - -var ( -%s -) - -// Implemented in runtime/syscall_aix.go. -func rawSyscall6(trap, nargs, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2 uintptr, err Errno) -func syscall6(trap, nargs, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2 uintptr, err Errno) - -%s -` -const srcTemplate3 = `// %s -// Code generated by the command above; see README.md. DO NOT EDIT. - -// +build %s -// +build gccgo - -package %s - -%s -*/ -import "C" -import ( - "syscall" -) - - -%s - -%s -` diff --git a/vendor/golang.org/x/sys/unix/mksyscall_solaris.go b/vendor/golang.org/x/sys/unix/mksyscall_solaris.go deleted file mode 100644 index 675597e44..000000000 --- a/vendor/golang.org/x/sys/unix/mksyscall_solaris.go +++ /dev/null @@ -1,341 +0,0 @@ -// Copyright 2019 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -// +build ignore - -/* - This program reads a file containing function prototypes - (like syscall_solaris.go) and generates system call bodies. - The prototypes are marked by lines beginning with "//sys" - and read like func declarations if //sys is replaced by func, but: - * The parameter lists must give a name for each argument. - This includes return parameters. - * The parameter lists must give a type for each argument: - the (x, y, z int) shorthand is not allowed. - * If the return parameter is an error number, it must be named err. - * If go func name needs to be different than its libc name, - * or the function is not in libc, name could be specified - * at the end, after "=" sign, like - //sys getsockopt(s int, level int, name int, val uintptr, vallen *_Socklen) (err error) = libsocket.getsockopt -*/ - -package main - -import ( - "bufio" - "flag" - "fmt" - "os" - "regexp" - "strings" -) - -var ( - b32 = flag.Bool("b32", false, "32bit big-endian") - l32 = flag.Bool("l32", false, "32bit little-endian") - tags = flag.String("tags", "", "build tags") - illumos = flag.Bool("illumos", false, "illumos specific code generation") -) - -// cmdLine returns this programs's commandline arguments -func cmdLine() string { - return "go run mksyscall_solaris.go " + strings.Join(os.Args[1:], " ") -} - -// buildTags returns build tags -func buildTags() string { - return *tags -} - -// Param is function parameter -type Param struct { - Name string - Type string -} - -// usage prints the program usage -func usage() { - fmt.Fprintf(os.Stderr, "usage: go run mksyscall_solaris.go [-b32 | -l32] [-tags x,y] [file ...]\n") - os.Exit(1) -} - -// parseParamList parses parameter list and returns a slice of parameters -func parseParamList(list string) []string { - list = strings.TrimSpace(list) - if list == "" { - return []string{} - } - return regexp.MustCompile(`\s*,\s*`).Split(list, -1) -} - -// parseParam splits a parameter into name and type -func parseParam(p string) Param { - ps := regexp.MustCompile(`^(\S*) (\S*)$`).FindStringSubmatch(p) - if ps == nil { - fmt.Fprintf(os.Stderr, "malformed parameter: %s\n", p) - os.Exit(1) - } - return Param{ps[1], ps[2]} -} - -func main() { - flag.Usage = usage - flag.Parse() - if len(flag.Args()) <= 0 { - fmt.Fprintf(os.Stderr, "no files to parse provided\n") - usage() - } - - endianness := "" - if *b32 { - endianness = "big-endian" - } else if *l32 { - endianness = "little-endian" - } - - pack := "" - text := "" - dynimports := "" - linknames := "" - var vars []string - for _, path := range flag.Args() { - file, err := os.Open(path) - if err != nil { - fmt.Fprintf(os.Stderr, err.Error()) - os.Exit(1) - } - s := bufio.NewScanner(file) - for s.Scan() { - t := s.Text() - t = strings.TrimSpace(t) - t = regexp.MustCompile(`\s+`).ReplaceAllString(t, ` `) - if p := regexp.MustCompile(`^package (\S+)$`).FindStringSubmatch(t); p != nil && pack == "" { - pack = p[1] - } - nonblock := regexp.MustCompile(`^\/\/sysnb `).FindStringSubmatch(t) - if regexp.MustCompile(`^\/\/sys `).FindStringSubmatch(t) == nil && nonblock == nil { - continue - } - - // Line must be of the form - // func Open(path string, mode int, perm int) (fd int, err error) - // Split into name, in params, out params. - f := regexp.MustCompile(`^\/\/sys(nb)? (\w+)\(([^()]*)\)\s*(?:\(([^()]+)\))?\s*(?:=\s*(?:(\w*)\.)?(\w*))?$`).FindStringSubmatch(t) - if f == nil { - fmt.Fprintf(os.Stderr, "%s:%s\nmalformed //sys declaration\n", path, t) - os.Exit(1) - } - funct, inps, outps, modname, sysname := f[2], f[3], f[4], f[5], f[6] - - // Split argument lists on comma. - in := parseParamList(inps) - out := parseParamList(outps) - - inps = strings.Join(in, ", ") - outps = strings.Join(out, ", ") - - // Try in vain to keep people from editing this file. - // The theory is that they jump into the middle of the file - // without reading the header. - text += "// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT\n\n" - - // So file name. - if modname == "" { - modname = "libc" - } - - // System call name. - if sysname == "" { - sysname = funct - } - - // System call pointer variable name. - sysvarname := fmt.Sprintf("proc%s", sysname) - - strconvfunc := "BytePtrFromString" - strconvtype := "*byte" - - sysname = strings.ToLower(sysname) // All libc functions are lowercase. - - // Runtime import of function to allow cross-platform builds. - dynimports += fmt.Sprintf("//go:cgo_import_dynamic libc_%s %s \"%s.so\"\n", sysname, sysname, modname) - // Link symbol to proc address variable. - linknames += fmt.Sprintf("//go:linkname %s libc_%s\n", sysvarname, sysname) - // Library proc address variable. - vars = append(vars, sysvarname) - - // Go function header. - outlist := strings.Join(out, ", ") - if outlist != "" { - outlist = fmt.Sprintf(" (%s)", outlist) - } - if text != "" { - text += "\n" - } - text += fmt.Sprintf("func %s(%s)%s {\n", funct, strings.Join(in, ", "), outlist) - - // Check if err return available - errvar := "" - for _, param := range out { - p := parseParam(param) - if p.Type == "error" { - errvar = p.Name - continue - } - } - - // Prepare arguments to Syscall. - var args []string - n := 0 - for _, param := range in { - p := parseParam(param) - if regexp.MustCompile(`^\*`).FindStringSubmatch(p.Type) != nil { - args = append(args, "uintptr(unsafe.Pointer("+p.Name+"))") - } else if p.Type == "string" && errvar != "" { - text += fmt.Sprintf("\tvar _p%d %s\n", n, strconvtype) - text += fmt.Sprintf("\t_p%d, %s = %s(%s)\n", n, errvar, strconvfunc, p.Name) - text += fmt.Sprintf("\tif %s != nil {\n\t\treturn\n\t}\n", errvar) - args = append(args, fmt.Sprintf("uintptr(unsafe.Pointer(_p%d))", n)) - n++ - } else if p.Type == "string" { - fmt.Fprintf(os.Stderr, path+":"+funct+" uses string arguments, but has no error return\n") - text += fmt.Sprintf("\tvar _p%d %s\n", n, strconvtype) - text += fmt.Sprintf("\t_p%d, _ = %s(%s)\n", n, strconvfunc, p.Name) - args = append(args, fmt.Sprintf("uintptr(unsafe.Pointer(_p%d))", n)) - n++ - } else if s := regexp.MustCompile(`^\[\](.*)`).FindStringSubmatch(p.Type); s != nil { - // Convert slice into pointer, length. - // Have to be careful not to take address of &a[0] if len == 0: - // pass nil in that case. - text += fmt.Sprintf("\tvar _p%d *%s\n", n, s[1]) - text += fmt.Sprintf("\tif len(%s) > 0 {\n\t\t_p%d = &%s[0]\n\t}\n", p.Name, n, p.Name) - args = append(args, fmt.Sprintf("uintptr(unsafe.Pointer(_p%d))", n), fmt.Sprintf("uintptr(len(%s))", p.Name)) - n++ - } else if p.Type == "int64" && endianness != "" { - if endianness == "big-endian" { - args = append(args, fmt.Sprintf("uintptr(%s>>32)", p.Name), fmt.Sprintf("uintptr(%s)", p.Name)) - } else { - args = append(args, fmt.Sprintf("uintptr(%s)", p.Name), fmt.Sprintf("uintptr(%s>>32)", p.Name)) - } - } else if p.Type == "bool" { - text += fmt.Sprintf("\tvar _p%d uint32\n", n) - text += fmt.Sprintf("\tif %s {\n\t\t_p%d = 1\n\t} else {\n\t\t_p%d = 0\n\t}\n", p.Name, n, n) - args = append(args, fmt.Sprintf("uintptr(_p%d)", n)) - n++ - } else { - args = append(args, fmt.Sprintf("uintptr(%s)", p.Name)) - } - } - nargs := len(args) - - // Determine which form to use; pad args with zeros. - asm := "sysvicall6" - if nonblock != nil { - asm = "rawSysvicall6" - } - if len(args) <= 6 { - for len(args) < 6 { - args = append(args, "0") - } - } else { - fmt.Fprintf(os.Stderr, "%s: too many arguments to system call\n", path) - os.Exit(1) - } - - // Actual call. - arglist := strings.Join(args, ", ") - call := fmt.Sprintf("%s(uintptr(unsafe.Pointer(&%s)), %d, %s)", asm, sysvarname, nargs, arglist) - - // Assign return values. - body := "" - ret := []string{"_", "_", "_"} - doErrno := false - for i := 0; i < len(out); i++ { - p := parseParam(out[i]) - reg := "" - if p.Name == "err" { - reg = "e1" - ret[2] = reg - doErrno = true - } else { - reg = fmt.Sprintf("r%d", i) - ret[i] = reg - } - if p.Type == "bool" { - reg = fmt.Sprintf("%d != 0", reg) - } - if p.Type == "int64" && endianness != "" { - // 64-bit number in r1:r0 or r0:r1. - if i+2 > len(out) { - fmt.Fprintf(os.Stderr, "%s: not enough registers for int64 return\n", path) - os.Exit(1) - } - if endianness == "big-endian" { - reg = fmt.Sprintf("int64(r%d)<<32 | int64(r%d)", i, i+1) - } else { - reg = fmt.Sprintf("int64(r%d)<<32 | int64(r%d)", i+1, i) - } - ret[i] = fmt.Sprintf("r%d", i) - ret[i+1] = fmt.Sprintf("r%d", i+1) - } - if reg != "e1" { - body += fmt.Sprintf("\t%s = %s(%s)\n", p.Name, p.Type, reg) - } - } - if ret[0] == "_" && ret[1] == "_" && ret[2] == "_" { - text += fmt.Sprintf("\t%s\n", call) - } else { - text += fmt.Sprintf("\t%s, %s, %s := %s\n", ret[0], ret[1], ret[2], call) - } - text += body - - if doErrno { - text += "\tif e1 != 0 {\n" - text += "\t\terr = e1\n" - text += "\t}\n" - } - text += "\treturn\n" - text += "}\n" - } - if err := s.Err(); err != nil { - fmt.Fprintf(os.Stderr, err.Error()) - os.Exit(1) - } - file.Close() - } - imp := "" - if pack != "unix" { - imp = "import \"golang.org/x/sys/unix\"\n" - } - - syscallimp := "" - if !*illumos { - syscallimp = "\"syscall\"" - } - - vardecls := "\t" + strings.Join(vars, ",\n\t") - vardecls += " syscallFunc" - fmt.Printf(srcTemplate, cmdLine(), buildTags(), pack, syscallimp, imp, dynimports, linknames, vardecls, text) -} - -const srcTemplate = `// %s -// Code generated by the command above; see README.md. DO NOT EDIT. - -// +build %s - -package %s - -import ( - "unsafe" - %s -) -%s -%s -%s -var ( -%s -) - -%s -` diff --git a/vendor/golang.org/x/sys/unix/mksysctl_openbsd.go b/vendor/golang.org/x/sys/unix/mksysctl_openbsd.go deleted file mode 100644 index b6b409909..000000000 --- a/vendor/golang.org/x/sys/unix/mksysctl_openbsd.go +++ /dev/null @@ -1,355 +0,0 @@ -// Copyright 2019 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -// +build ignore - -// Parse the header files for OpenBSD and generate a Go usable sysctl MIB. -// -// Build a MIB with each entry being an array containing the level, type and -// a hash that will contain additional entries if the current entry is a node. -// We then walk this MIB and create a flattened sysctl name to OID hash. - -package main - -import ( - "bufio" - "fmt" - "os" - "path/filepath" - "regexp" - "sort" - "strings" -) - -var ( - goos, goarch string -) - -// cmdLine returns this programs's commandline arguments. -func cmdLine() string { - return "go run mksysctl_openbsd.go " + strings.Join(os.Args[1:], " ") -} - -// buildTags returns build tags. -func buildTags() string { - return fmt.Sprintf("%s,%s", goarch, goos) -} - -// reMatch performs regular expression match and stores the substring slice to value pointed by m. -func reMatch(re *regexp.Regexp, str string, m *[]string) bool { - *m = re.FindStringSubmatch(str) - if *m != nil { - return true - } - return false -} - -type nodeElement struct { - n int - t string - pE *map[string]nodeElement -} - -var ( - debugEnabled bool - mib map[string]nodeElement - node *map[string]nodeElement - nodeMap map[string]string - sysCtl []string -) - -var ( - ctlNames1RE = regexp.MustCompile(`^#define\s+(CTL_NAMES)\s+{`) - ctlNames2RE = regexp.MustCompile(`^#define\s+(CTL_(.*)_NAMES)\s+{`) - ctlNames3RE = regexp.MustCompile(`^#define\s+((.*)CTL_NAMES)\s+{`) - netInetRE = regexp.MustCompile(`^netinet/`) - netInet6RE = regexp.MustCompile(`^netinet6/`) - netRE = regexp.MustCompile(`^net/`) - bracesRE = regexp.MustCompile(`{.*}`) - ctlTypeRE = regexp.MustCompile(`{\s+"(\w+)",\s+(CTLTYPE_[A-Z]+)\s+}`) - fsNetKernRE = regexp.MustCompile(`^(fs|net|kern)_`) -) - -func debug(s string) { - if debugEnabled { - fmt.Fprintln(os.Stderr, s) - } -} - -// Walk the MIB and build a sysctl name to OID mapping. -func buildSysctl(pNode *map[string]nodeElement, name string, oid []int) { - lNode := pNode // local copy of pointer to node - var keys []string - for k := range *lNode { - keys = append(keys, k) - } - sort.Strings(keys) - - for _, key := range keys { - nodename := name - if name != "" { - nodename += "." - } - nodename += key - - nodeoid := append(oid, (*pNode)[key].n) - - if (*pNode)[key].t == `CTLTYPE_NODE` { - if _, ok := nodeMap[nodename]; ok { - lNode = &mib - ctlName := nodeMap[nodename] - for _, part := range strings.Split(ctlName, ".") { - lNode = ((*lNode)[part]).pE - } - } else { - lNode = (*pNode)[key].pE - } - buildSysctl(lNode, nodename, nodeoid) - } else if (*pNode)[key].t != "" { - oidStr := []string{} - for j := range nodeoid { - oidStr = append(oidStr, fmt.Sprintf("%d", nodeoid[j])) - } - text := "\t{ \"" + nodename + "\", []_C_int{ " + strings.Join(oidStr, ", ") + " } }, \n" - sysCtl = append(sysCtl, text) - } - } -} - -func main() { - // Get the OS (using GOOS_TARGET if it exist) - goos = os.Getenv("GOOS_TARGET") - if goos == "" { - goos = os.Getenv("GOOS") - } - // Get the architecture (using GOARCH_TARGET if it exists) - goarch = os.Getenv("GOARCH_TARGET") - if goarch == "" { - goarch = os.Getenv("GOARCH") - } - // Check if GOOS and GOARCH environment variables are defined - if goarch == "" || goos == "" { - fmt.Fprintf(os.Stderr, "GOARCH or GOOS not defined in environment\n") - os.Exit(1) - } - - mib = make(map[string]nodeElement) - headers := [...]string{ - `sys/sysctl.h`, - `sys/socket.h`, - `sys/tty.h`, - `sys/malloc.h`, - `sys/mount.h`, - `sys/namei.h`, - `sys/sem.h`, - `sys/shm.h`, - `sys/vmmeter.h`, - `uvm/uvmexp.h`, - `uvm/uvm_param.h`, - `uvm/uvm_swap_encrypt.h`, - `ddb/db_var.h`, - `net/if.h`, - `net/if_pfsync.h`, - `net/pipex.h`, - `netinet/in.h`, - `netinet/icmp_var.h`, - `netinet/igmp_var.h`, - `netinet/ip_ah.h`, - `netinet/ip_carp.h`, - `netinet/ip_divert.h`, - `netinet/ip_esp.h`, - `netinet/ip_ether.h`, - `netinet/ip_gre.h`, - `netinet/ip_ipcomp.h`, - `netinet/ip_ipip.h`, - `netinet/pim_var.h`, - `netinet/tcp_var.h`, - `netinet/udp_var.h`, - `netinet6/in6.h`, - `netinet6/ip6_divert.h`, - `netinet6/pim6_var.h`, - `netinet/icmp6.h`, - `netmpls/mpls.h`, - } - - ctls := [...]string{ - `kern`, - `vm`, - `fs`, - `net`, - //debug /* Special handling required */ - `hw`, - //machdep /* Arch specific */ - `user`, - `ddb`, - //vfs /* Special handling required */ - `fs.posix`, - `kern.forkstat`, - `kern.intrcnt`, - `kern.malloc`, - `kern.nchstats`, - `kern.seminfo`, - `kern.shminfo`, - `kern.timecounter`, - `kern.tty`, - `kern.watchdog`, - `net.bpf`, - `net.ifq`, - `net.inet`, - `net.inet.ah`, - `net.inet.carp`, - `net.inet.divert`, - `net.inet.esp`, - `net.inet.etherip`, - `net.inet.gre`, - `net.inet.icmp`, - `net.inet.igmp`, - `net.inet.ip`, - `net.inet.ip.ifq`, - `net.inet.ipcomp`, - `net.inet.ipip`, - `net.inet.mobileip`, - `net.inet.pfsync`, - `net.inet.pim`, - `net.inet.tcp`, - `net.inet.udp`, - `net.inet6`, - `net.inet6.divert`, - `net.inet6.ip6`, - `net.inet6.icmp6`, - `net.inet6.pim6`, - `net.inet6.tcp6`, - `net.inet6.udp6`, - `net.mpls`, - `net.mpls.ifq`, - `net.key`, - `net.pflow`, - `net.pfsync`, - `net.pipex`, - `net.rt`, - `vm.swapencrypt`, - //vfsgenctl /* Special handling required */ - } - - // Node name "fixups" - ctlMap := map[string]string{ - "ipproto": "net.inet", - "net.inet.ipproto": "net.inet", - "net.inet6.ipv6proto": "net.inet6", - "net.inet6.ipv6": "net.inet6.ip6", - "net.inet.icmpv6": "net.inet6.icmp6", - "net.inet6.divert6": "net.inet6.divert", - "net.inet6.tcp6": "net.inet.tcp", - "net.inet6.udp6": "net.inet.udp", - "mpls": "net.mpls", - "swpenc": "vm.swapencrypt", - } - - // Node mappings - nodeMap = map[string]string{ - "net.inet.ip.ifq": "net.ifq", - "net.inet.pfsync": "net.pfsync", - "net.mpls.ifq": "net.ifq", - } - - mCtls := make(map[string]bool) - for _, ctl := range ctls { - mCtls[ctl] = true - } - - for _, header := range headers { - debug("Processing " + header) - file, err := os.Open(filepath.Join("/usr/include", header)) - if err != nil { - fmt.Fprintf(os.Stderr, "%v\n", err) - os.Exit(1) - } - s := bufio.NewScanner(file) - for s.Scan() { - var sub []string - if reMatch(ctlNames1RE, s.Text(), &sub) || - reMatch(ctlNames2RE, s.Text(), &sub) || - reMatch(ctlNames3RE, s.Text(), &sub) { - if sub[1] == `CTL_NAMES` { - // Top level. - node = &mib - } else { - // Node. - nodename := strings.ToLower(sub[2]) - ctlName := "" - if reMatch(netInetRE, header, &sub) { - ctlName = "net.inet." + nodename - } else if reMatch(netInet6RE, header, &sub) { - ctlName = "net.inet6." + nodename - } else if reMatch(netRE, header, &sub) { - ctlName = "net." + nodename - } else { - ctlName = nodename - ctlName = fsNetKernRE.ReplaceAllString(ctlName, `$1.`) - } - - if val, ok := ctlMap[ctlName]; ok { - ctlName = val - } - if _, ok := mCtls[ctlName]; !ok { - debug("Ignoring " + ctlName + "...") - continue - } - - // Walk down from the top of the MIB. - node = &mib - for _, part := range strings.Split(ctlName, ".") { - if _, ok := (*node)[part]; !ok { - debug("Missing node " + part) - (*node)[part] = nodeElement{n: 0, t: "", pE: &map[string]nodeElement{}} - } - node = (*node)[part].pE - } - } - - // Populate current node with entries. - i := -1 - for !strings.HasPrefix(s.Text(), "}") { - s.Scan() - if reMatch(bracesRE, s.Text(), &sub) { - i++ - } - if !reMatch(ctlTypeRE, s.Text(), &sub) { - continue - } - (*node)[sub[1]] = nodeElement{n: i, t: sub[2], pE: &map[string]nodeElement{}} - } - } - } - err = s.Err() - if err != nil { - fmt.Fprintf(os.Stderr, "%v\n", err) - os.Exit(1) - } - file.Close() - } - buildSysctl(&mib, "", []int{}) - - sort.Strings(sysCtl) - text := strings.Join(sysCtl, "") - - fmt.Printf(srcTemplate, cmdLine(), buildTags(), text) -} - -const srcTemplate = `// %s -// Code generated by the command above; DO NOT EDIT. - -// +build %s - -package unix - -type mibentry struct { - ctlname string - ctloid []_C_int -} - -var sysctlMib = []mibentry { -%s -} -` diff --git a/vendor/golang.org/x/sys/unix/mksysnum.go b/vendor/golang.org/x/sys/unix/mksysnum.go deleted file mode 100644 index baa6ecd85..000000000 --- a/vendor/golang.org/x/sys/unix/mksysnum.go +++ /dev/null @@ -1,190 +0,0 @@ -// Copyright 2018 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -// +build ignore - -// Generate system call table for DragonFly, NetBSD, -// FreeBSD, OpenBSD or Darwin from master list -// (for example, /usr/src/sys/kern/syscalls.master or -// sys/syscall.h). -package main - -import ( - "bufio" - "fmt" - "io" - "io/ioutil" - "net/http" - "os" - "regexp" - "strings" -) - -var ( - goos, goarch string -) - -// cmdLine returns this programs's commandline arguments -func cmdLine() string { - return "go run mksysnum.go " + strings.Join(os.Args[1:], " ") -} - -// buildTags returns build tags -func buildTags() string { - return fmt.Sprintf("%s,%s", goarch, goos) -} - -func checkErr(err error) { - if err != nil { - fmt.Fprintf(os.Stderr, "%v\n", err) - os.Exit(1) - } -} - -// source string and substring slice for regexp -type re struct { - str string // source string - sub []string // matched sub-string -} - -// Match performs regular expression match -func (r *re) Match(exp string) bool { - r.sub = regexp.MustCompile(exp).FindStringSubmatch(r.str) - if r.sub != nil { - return true - } - return false -} - -// fetchFile fetches a text file from URL -func fetchFile(URL string) io.Reader { - resp, err := http.Get(URL) - checkErr(err) - defer resp.Body.Close() - body, err := ioutil.ReadAll(resp.Body) - checkErr(err) - return strings.NewReader(string(body)) -} - -// readFile reads a text file from path -func readFile(path string) io.Reader { - file, err := os.Open(os.Args[1]) - checkErr(err) - return file -} - -func format(name, num, proto string) string { - name = strings.ToUpper(name) - // There are multiple entries for enosys and nosys, so comment them out. - nm := re{str: name} - if nm.Match(`^SYS_E?NOSYS$`) { - name = fmt.Sprintf("// %s", name) - } - if name == `SYS_SYS_EXIT` { - name = `SYS_EXIT` - } - return fmt.Sprintf(" %s = %s; // %s\n", name, num, proto) -} - -func main() { - // Get the OS (using GOOS_TARGET if it exist) - goos = os.Getenv("GOOS_TARGET") - if goos == "" { - goos = os.Getenv("GOOS") - } - // Get the architecture (using GOARCH_TARGET if it exists) - goarch = os.Getenv("GOARCH_TARGET") - if goarch == "" { - goarch = os.Getenv("GOARCH") - } - // Check if GOOS and GOARCH environment variables are defined - if goarch == "" || goos == "" { - fmt.Fprintf(os.Stderr, "GOARCH or GOOS not defined in environment\n") - os.Exit(1) - } - - file := strings.TrimSpace(os.Args[1]) - var syscalls io.Reader - if strings.HasPrefix(file, "https://") || strings.HasPrefix(file, "http://") { - // Download syscalls.master file - syscalls = fetchFile(file) - } else { - syscalls = readFile(file) - } - - var text, line string - s := bufio.NewScanner(syscalls) - for s.Scan() { - t := re{str: line} - if t.Match(`^(.*)\\$`) { - // Handle continuation - line = t.sub[1] - line += strings.TrimLeft(s.Text(), " \t") - } else { - // New line - line = s.Text() - } - t = re{str: line} - if t.Match(`\\$`) { - continue - } - t = re{str: line} - - switch goos { - case "dragonfly": - if t.Match(`^([0-9]+)\s+STD\s+({ \S+\s+(\w+).*)$`) { - num, proto := t.sub[1], t.sub[2] - name := fmt.Sprintf("SYS_%s", t.sub[3]) - text += format(name, num, proto) - } - case "freebsd": - if t.Match(`^([0-9]+)\s+\S+\s+(?:(?:NO)?STD|COMPAT10)\s+({ \S+\s+(\w+).*)$`) { - num, proto := t.sub[1], t.sub[2] - name := fmt.Sprintf("SYS_%s", t.sub[3]) - text += format(name, num, proto) - } - case "openbsd": - if t.Match(`^([0-9]+)\s+STD\s+(NOLOCK\s+)?({ \S+\s+\*?(\w+).*)$`) { - num, proto, name := t.sub[1], t.sub[3], t.sub[4] - text += format(name, num, proto) - } - case "netbsd": - if t.Match(`^([0-9]+)\s+((STD)|(NOERR))\s+(RUMP\s+)?({\s+\S+\s*\*?\s*\|(\S+)\|(\S*)\|(\w+).*\s+})(\s+(\S+))?$`) { - num, proto, compat := t.sub[1], t.sub[6], t.sub[8] - name := t.sub[7] + "_" + t.sub[9] - if t.sub[11] != "" { - name = t.sub[7] + "_" + t.sub[11] - } - name = strings.ToUpper(name) - if compat == "" || compat == "13" || compat == "30" || compat == "50" { - text += fmt.Sprintf(" %s = %s; // %s\n", name, num, proto) - } - } - case "darwin": - if t.Match(`^#define\s+SYS_(\w+)\s+([0-9]+)`) { - name, num := t.sub[1], t.sub[2] - name = strings.ToUpper(name) - text += fmt.Sprintf(" SYS_%s = %s;\n", name, num) - } - default: - fmt.Fprintf(os.Stderr, "unrecognized GOOS=%s\n", goos) - os.Exit(1) - - } - } - err := s.Err() - checkErr(err) - - fmt.Printf(template, cmdLine(), buildTags(), text) -} - -const template = `// %s -// Code generated by the command above; see README.md. DO NOT EDIT. - -// +build %s - -package unix - -const( -%s)` diff --git a/vendor/golang.org/x/sys/unix/syscall.go b/vendor/golang.org/x/sys/unix/syscall.go index 4d682026b..fd4ee8ebe 100644 --- a/vendor/golang.org/x/sys/unix/syscall.go +++ b/vendor/golang.org/x/sys/unix/syscall.go @@ -22,7 +22,7 @@ // These calls return err == nil to indicate success; otherwise // err represents an operating system error describing the failure and // holds a value of type syscall.Errno. -package unix +package unix // import "golang.org/x/sys/unix" import "strings" diff --git a/vendor/golang.org/x/sys/unix/types_aix.go b/vendor/golang.org/x/sys/unix/types_aix.go deleted file mode 100644 index 40d2beede..000000000 --- a/vendor/golang.org/x/sys/unix/types_aix.go +++ /dev/null @@ -1,237 +0,0 @@ -// Copyright 2018 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -// +build ignore -// +build aix - -/* -Input to cgo -godefs. See also mkerrors.sh and mkall.sh -*/ - -// +godefs map struct_in_addr [4]byte /* in_addr */ -// +godefs map struct_in6_addr [16]byte /* in6_addr */ - -package unix - -/* -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include - -#include -#include -#include -#include - - -#include -#include - -enum { - sizeofPtr = sizeof(void*), -}; - -union sockaddr_all { - struct sockaddr s1; // this one gets used for fields - struct sockaddr_in s2; // these pad it out - struct sockaddr_in6 s3; - struct sockaddr_un s4; - struct sockaddr_dl s5; -}; - -struct sockaddr_any { - struct sockaddr addr; - char pad[sizeof(union sockaddr_all) - sizeof(struct sockaddr)]; -}; - -*/ -import "C" - -// Machine characteristics - -const ( - SizeofPtr = C.sizeofPtr - SizeofShort = C.sizeof_short - SizeofInt = C.sizeof_int - SizeofLong = C.sizeof_long - SizeofLongLong = C.sizeof_longlong - PathMax = C.PATH_MAX -) - -// Basic types - -type ( - _C_short C.short - _C_int C.int - _C_long C.long - _C_long_long C.longlong -) - -type off64 C.off64_t -type off C.off_t -type Mode_t C.mode_t - -// Time - -type Timespec C.struct_timespec - -type Timeval C.struct_timeval - -type Timeval32 C.struct_timeval32 - -type Timex C.struct_timex - -type Time_t C.time_t - -type Tms C.struct_tms - -type Utimbuf C.struct_utimbuf - -type Timezone C.struct_timezone - -// Processes - -type Rusage C.struct_rusage - -type Rlimit C.struct_rlimit64 - -type Pid_t C.pid_t - -type _Gid_t C.gid_t - -type dev_t C.dev_t - -// Files - -type Stat_t C.struct_stat - -type StatxTimestamp C.struct_statx_timestamp - -type Statx_t C.struct_statx - -type Dirent C.struct_dirent - -// Sockets - -type RawSockaddrInet4 C.struct_sockaddr_in - -type RawSockaddrInet6 C.struct_sockaddr_in6 - -type RawSockaddrUnix C.struct_sockaddr_un - -type RawSockaddrDatalink C.struct_sockaddr_dl - -type RawSockaddr C.struct_sockaddr - -type RawSockaddrAny C.struct_sockaddr_any - -type _Socklen C.socklen_t - -type Cmsghdr C.struct_cmsghdr - -type ICMPv6Filter C.struct_icmp6_filter - -type Iovec C.struct_iovec - -type IPMreq C.struct_ip_mreq - -type IPv6Mreq C.struct_ipv6_mreq - -type IPv6MTUInfo C.struct_ip6_mtuinfo - -type Linger C.struct_linger - -type Msghdr C.struct_msghdr - -const ( - SizeofSockaddrInet4 = C.sizeof_struct_sockaddr_in - SizeofSockaddrInet6 = C.sizeof_struct_sockaddr_in6 - SizeofSockaddrAny = C.sizeof_struct_sockaddr_any - SizeofSockaddrUnix = C.sizeof_struct_sockaddr_un - SizeofSockaddrDatalink = C.sizeof_struct_sockaddr_dl - SizeofLinger = C.sizeof_struct_linger - SizeofIPMreq = C.sizeof_struct_ip_mreq - SizeofIPv6Mreq = C.sizeof_struct_ipv6_mreq - SizeofIPv6MTUInfo = C.sizeof_struct_ip6_mtuinfo - SizeofMsghdr = C.sizeof_struct_msghdr - SizeofCmsghdr = C.sizeof_struct_cmsghdr - SizeofICMPv6Filter = C.sizeof_struct_icmp6_filter -) - -// Routing and interface messages - -const ( - SizeofIfMsghdr = C.sizeof_struct_if_msghdr -) - -type IfMsgHdr C.struct_if_msghdr - -// Misc - -type FdSet C.fd_set - -type Utsname C.struct_utsname - -type Ustat_t C.struct_ustat - -type Sigset_t C.sigset_t - -const ( - AT_FDCWD = C.AT_FDCWD - AT_REMOVEDIR = C.AT_REMOVEDIR - AT_SYMLINK_NOFOLLOW = C.AT_SYMLINK_NOFOLLOW -) - -// Terminal handling - -type Termios C.struct_termios - -type Termio C.struct_termio - -type Winsize C.struct_winsize - -//poll - -type PollFd struct { - Fd int32 - Events uint16 - Revents uint16 -} - -const ( - POLLERR = C.POLLERR - POLLHUP = C.POLLHUP - POLLIN = C.POLLIN - POLLNVAL = C.POLLNVAL - POLLOUT = C.POLLOUT - POLLPRI = C.POLLPRI - POLLRDBAND = C.POLLRDBAND - POLLRDNORM = C.POLLRDNORM - POLLWRBAND = C.POLLWRBAND - POLLWRNORM = C.POLLWRNORM -) - -//flock_t - -type Flock_t C.struct_flock64 - -// Statfs - -type Fsid_t C.struct_fsid_t -type Fsid64_t C.struct_fsid64_t - -type Statfs_t C.struct_statfs - -const RNDGETENTCNT = 0x80045200 diff --git a/vendor/golang.org/x/sys/unix/types_darwin.go b/vendor/golang.org/x/sys/unix/types_darwin.go deleted file mode 100644 index 155c2e692..000000000 --- a/vendor/golang.org/x/sys/unix/types_darwin.go +++ /dev/null @@ -1,283 +0,0 @@ -// Copyright 2009 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -// +build ignore - -/* -Input to cgo -godefs. See README.md -*/ - -// +godefs map struct_in_addr [4]byte /* in_addr */ -// +godefs map struct_in6_addr [16]byte /* in6_addr */ - -package unix - -/* -#define __DARWIN_UNIX03 0 -#define KERNEL -#define _DARWIN_USE_64_BIT_INODE -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -enum { - sizeofPtr = sizeof(void*), -}; - -union sockaddr_all { - struct sockaddr s1; // this one gets used for fields - struct sockaddr_in s2; // these pad it out - struct sockaddr_in6 s3; - struct sockaddr_un s4; - struct sockaddr_dl s5; -}; - -struct sockaddr_any { - struct sockaddr addr; - char pad[sizeof(union sockaddr_all) - sizeof(struct sockaddr)]; -}; - -*/ -import "C" - -// Machine characteristics - -const ( - SizeofPtr = C.sizeofPtr - SizeofShort = C.sizeof_short - SizeofInt = C.sizeof_int - SizeofLong = C.sizeof_long - SizeofLongLong = C.sizeof_longlong -) - -// Basic types - -type ( - _C_short C.short - _C_int C.int - _C_long C.long - _C_long_long C.longlong -) - -// Time - -type Timespec C.struct_timespec - -type Timeval C.struct_timeval - -type Timeval32 C.struct_timeval32 - -// Processes - -type Rusage C.struct_rusage - -type Rlimit C.struct_rlimit - -type _Gid_t C.gid_t - -// Files - -type Stat_t C.struct_stat64 - -type Statfs_t C.struct_statfs64 - -type Flock_t C.struct_flock - -type Fstore_t C.struct_fstore - -type Radvisory_t C.struct_radvisory - -type Fbootstraptransfer_t C.struct_fbootstraptransfer - -type Log2phys_t C.struct_log2phys - -type Fsid C.struct_fsid - -type Dirent C.struct_dirent - -// Sockets - -type RawSockaddrInet4 C.struct_sockaddr_in - -type RawSockaddrInet6 C.struct_sockaddr_in6 - -type RawSockaddrUnix C.struct_sockaddr_un - -type RawSockaddrDatalink C.struct_sockaddr_dl - -type RawSockaddr C.struct_sockaddr - -type RawSockaddrAny C.struct_sockaddr_any - -type _Socklen C.socklen_t - -type Linger C.struct_linger - -type Iovec C.struct_iovec - -type IPMreq C.struct_ip_mreq - -type IPv6Mreq C.struct_ipv6_mreq - -type Msghdr C.struct_msghdr - -type Cmsghdr C.struct_cmsghdr - -type Inet4Pktinfo C.struct_in_pktinfo - -type Inet6Pktinfo C.struct_in6_pktinfo - -type IPv6MTUInfo C.struct_ip6_mtuinfo - -type ICMPv6Filter C.struct_icmp6_filter - -const ( - SizeofSockaddrInet4 = C.sizeof_struct_sockaddr_in - SizeofSockaddrInet6 = C.sizeof_struct_sockaddr_in6 - SizeofSockaddrAny = C.sizeof_struct_sockaddr_any - SizeofSockaddrUnix = C.sizeof_struct_sockaddr_un - SizeofSockaddrDatalink = C.sizeof_struct_sockaddr_dl - SizeofLinger = C.sizeof_struct_linger - SizeofIPMreq = C.sizeof_struct_ip_mreq - SizeofIPv6Mreq = C.sizeof_struct_ipv6_mreq - SizeofMsghdr = C.sizeof_struct_msghdr - SizeofCmsghdr = C.sizeof_struct_cmsghdr - SizeofInet4Pktinfo = C.sizeof_struct_in_pktinfo - SizeofInet6Pktinfo = C.sizeof_struct_in6_pktinfo - SizeofIPv6MTUInfo = C.sizeof_struct_ip6_mtuinfo - SizeofICMPv6Filter = C.sizeof_struct_icmp6_filter -) - -// Ptrace requests - -const ( - PTRACE_TRACEME = C.PT_TRACE_ME - PTRACE_CONT = C.PT_CONTINUE - PTRACE_KILL = C.PT_KILL -) - -// Events (kqueue, kevent) - -type Kevent_t C.struct_kevent - -// Select - -type FdSet C.fd_set - -// Routing and interface messages - -const ( - SizeofIfMsghdr = C.sizeof_struct_if_msghdr - SizeofIfData = C.sizeof_struct_if_data - SizeofIfaMsghdr = C.sizeof_struct_ifa_msghdr - SizeofIfmaMsghdr = C.sizeof_struct_ifma_msghdr - SizeofIfmaMsghdr2 = C.sizeof_struct_ifma_msghdr2 - SizeofRtMsghdr = C.sizeof_struct_rt_msghdr - SizeofRtMetrics = C.sizeof_struct_rt_metrics -) - -type IfMsghdr C.struct_if_msghdr - -type IfData C.struct_if_data - -type IfaMsghdr C.struct_ifa_msghdr - -type IfmaMsghdr C.struct_ifma_msghdr - -type IfmaMsghdr2 C.struct_ifma_msghdr2 - -type RtMsghdr C.struct_rt_msghdr - -type RtMetrics C.struct_rt_metrics - -// Berkeley packet filter - -const ( - SizeofBpfVersion = C.sizeof_struct_bpf_version - SizeofBpfStat = C.sizeof_struct_bpf_stat - SizeofBpfProgram = C.sizeof_struct_bpf_program - SizeofBpfInsn = C.sizeof_struct_bpf_insn - SizeofBpfHdr = C.sizeof_struct_bpf_hdr -) - -type BpfVersion C.struct_bpf_version - -type BpfStat C.struct_bpf_stat - -type BpfProgram C.struct_bpf_program - -type BpfInsn C.struct_bpf_insn - -type BpfHdr C.struct_bpf_hdr - -// Terminal handling - -type Termios C.struct_termios - -type Winsize C.struct_winsize - -// fchmodat-like syscalls. - -const ( - AT_FDCWD = C.AT_FDCWD - AT_REMOVEDIR = C.AT_REMOVEDIR - AT_SYMLINK_FOLLOW = C.AT_SYMLINK_FOLLOW - AT_SYMLINK_NOFOLLOW = C.AT_SYMLINK_NOFOLLOW -) - -// poll - -type PollFd C.struct_pollfd - -const ( - POLLERR = C.POLLERR - POLLHUP = C.POLLHUP - POLLIN = C.POLLIN - POLLNVAL = C.POLLNVAL - POLLOUT = C.POLLOUT - POLLPRI = C.POLLPRI - POLLRDBAND = C.POLLRDBAND - POLLRDNORM = C.POLLRDNORM - POLLWRBAND = C.POLLWRBAND - POLLWRNORM = C.POLLWRNORM -) - -// uname - -type Utsname C.struct_utsname - -// Clockinfo - -const SizeofClockinfo = C.sizeof_struct_clockinfo - -type Clockinfo C.struct_clockinfo diff --git a/vendor/golang.org/x/sys/unix/types_dragonfly.go b/vendor/golang.org/x/sys/unix/types_dragonfly.go deleted file mode 100644 index 6574f6b6a..000000000 --- a/vendor/golang.org/x/sys/unix/types_dragonfly.go +++ /dev/null @@ -1,269 +0,0 @@ -// Copyright 2009 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -// +build ignore - -/* -Input to cgo -godefs. See README.md -*/ - -// +godefs map struct_in_addr [4]byte /* in_addr */ -// +godefs map struct_in6_addr [16]byte /* in6_addr */ - -package unix - -/* -#define KERNEL -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -enum { - sizeofPtr = sizeof(void*), -}; - -union sockaddr_all { - struct sockaddr s1; // this one gets used for fields - struct sockaddr_in s2; // these pad it out - struct sockaddr_in6 s3; - struct sockaddr_un s4; - struct sockaddr_dl s5; -}; - -struct sockaddr_any { - struct sockaddr addr; - char pad[sizeof(union sockaddr_all) - sizeof(struct sockaddr)]; -}; - -*/ -import "C" - -// Machine characteristics - -const ( - SizeofPtr = C.sizeofPtr - SizeofShort = C.sizeof_short - SizeofInt = C.sizeof_int - SizeofLong = C.sizeof_long - SizeofLongLong = C.sizeof_longlong -) - -// Basic types - -type ( - _C_short C.short - _C_int C.int - _C_long C.long - _C_long_long C.longlong -) - -// Time - -type Timespec C.struct_timespec - -type Timeval C.struct_timeval - -// Processes - -type Rusage C.struct_rusage - -type Rlimit C.struct_rlimit - -type _Gid_t C.gid_t - -// Files - -type Stat_t C.struct_stat - -type Statfs_t C.struct_statfs - -type Flock_t C.struct_flock - -type Dirent C.struct_dirent - -type Fsid C.struct_fsid - -// File system limits - -const ( - PathMax = C.PATH_MAX -) - -// Sockets - -type RawSockaddrInet4 C.struct_sockaddr_in - -type RawSockaddrInet6 C.struct_sockaddr_in6 - -type RawSockaddrUnix C.struct_sockaddr_un - -type RawSockaddrDatalink C.struct_sockaddr_dl - -type RawSockaddr C.struct_sockaddr - -type RawSockaddrAny C.struct_sockaddr_any - -type _Socklen C.socklen_t - -type Linger C.struct_linger - -type Iovec C.struct_iovec - -type IPMreq C.struct_ip_mreq - -type IPv6Mreq C.struct_ipv6_mreq - -type Msghdr C.struct_msghdr - -type Cmsghdr C.struct_cmsghdr - -type Inet6Pktinfo C.struct_in6_pktinfo - -type IPv6MTUInfo C.struct_ip6_mtuinfo - -type ICMPv6Filter C.struct_icmp6_filter - -const ( - SizeofSockaddrInet4 = C.sizeof_struct_sockaddr_in - SizeofSockaddrInet6 = C.sizeof_struct_sockaddr_in6 - SizeofSockaddrAny = C.sizeof_struct_sockaddr_any - SizeofSockaddrUnix = C.sizeof_struct_sockaddr_un - SizeofSockaddrDatalink = C.sizeof_struct_sockaddr_dl - SizeofLinger = C.sizeof_struct_linger - SizeofIPMreq = C.sizeof_struct_ip_mreq - SizeofIPv6Mreq = C.sizeof_struct_ipv6_mreq - SizeofMsghdr = C.sizeof_struct_msghdr - SizeofCmsghdr = C.sizeof_struct_cmsghdr - SizeofInet6Pktinfo = C.sizeof_struct_in6_pktinfo - SizeofIPv6MTUInfo = C.sizeof_struct_ip6_mtuinfo - SizeofICMPv6Filter = C.sizeof_struct_icmp6_filter -) - -// Ptrace requests - -const ( - PTRACE_TRACEME = C.PT_TRACE_ME - PTRACE_CONT = C.PT_CONTINUE - PTRACE_KILL = C.PT_KILL -) - -// Events (kqueue, kevent) - -type Kevent_t C.struct_kevent - -// Select - -type FdSet C.fd_set - -// Routing and interface messages - -const ( - SizeofIfMsghdr = C.sizeof_struct_if_msghdr - SizeofIfData = C.sizeof_struct_if_data - SizeofIfaMsghdr = C.sizeof_struct_ifa_msghdr - SizeofIfmaMsghdr = C.sizeof_struct_ifma_msghdr - SizeofIfAnnounceMsghdr = C.sizeof_struct_if_announcemsghdr - SizeofRtMsghdr = C.sizeof_struct_rt_msghdr - SizeofRtMetrics = C.sizeof_struct_rt_metrics -) - -type IfMsghdr C.struct_if_msghdr - -type IfData C.struct_if_data - -type IfaMsghdr C.struct_ifa_msghdr - -type IfmaMsghdr C.struct_ifma_msghdr - -type IfAnnounceMsghdr C.struct_if_announcemsghdr - -type RtMsghdr C.struct_rt_msghdr - -type RtMetrics C.struct_rt_metrics - -// Berkeley packet filter - -const ( - SizeofBpfVersion = C.sizeof_struct_bpf_version - SizeofBpfStat = C.sizeof_struct_bpf_stat - SizeofBpfProgram = C.sizeof_struct_bpf_program - SizeofBpfInsn = C.sizeof_struct_bpf_insn - SizeofBpfHdr = C.sizeof_struct_bpf_hdr -) - -type BpfVersion C.struct_bpf_version - -type BpfStat C.struct_bpf_stat - -type BpfProgram C.struct_bpf_program - -type BpfInsn C.struct_bpf_insn - -type BpfHdr C.struct_bpf_hdr - -// Terminal handling - -type Termios C.struct_termios - -type Winsize C.struct_winsize - -// fchmodat-like syscalls. - -const ( - AT_FDCWD = C.AT_FDCWD - AT_SYMLINK_NOFOLLOW = C.AT_SYMLINK_NOFOLLOW -) - -// poll - -type PollFd C.struct_pollfd - -const ( - POLLERR = C.POLLERR - POLLHUP = C.POLLHUP - POLLIN = C.POLLIN - POLLNVAL = C.POLLNVAL - POLLOUT = C.POLLOUT - POLLPRI = C.POLLPRI - POLLRDBAND = C.POLLRDBAND - POLLRDNORM = C.POLLRDNORM - POLLWRBAND = C.POLLWRBAND - POLLWRNORM = C.POLLWRNORM -) - -// Uname - -type Utsname C.struct_utsname - -// Clockinfo - -const SizeofClockinfo = C.sizeof_struct_clockinfo - -type Clockinfo C.struct_clockinfo diff --git a/vendor/golang.org/x/sys/unix/types_freebsd.go b/vendor/golang.org/x/sys/unix/types_freebsd.go deleted file mode 100644 index c6fde4249..000000000 --- a/vendor/golang.org/x/sys/unix/types_freebsd.go +++ /dev/null @@ -1,406 +0,0 @@ -// Copyright 2009 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -// +build ignore - -/* -Input to cgo -godefs. See README.md -*/ - -// +godefs map struct_in_addr [4]byte /* in_addr */ -// +godefs map struct_in6_addr [16]byte /* in6_addr */ - -package unix - -/* -#define _WANT_FREEBSD11_STAT 1 -#define _WANT_FREEBSD11_STATFS 1 -#define _WANT_FREEBSD11_DIRENT 1 -#define _WANT_FREEBSD11_KEVENT 1 - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -enum { - sizeofPtr = sizeof(void*), -}; - -union sockaddr_all { - struct sockaddr s1; // this one gets used for fields - struct sockaddr_in s2; // these pad it out - struct sockaddr_in6 s3; - struct sockaddr_un s4; - struct sockaddr_dl s5; -}; - -struct sockaddr_any { - struct sockaddr addr; - char pad[sizeof(union sockaddr_all) - sizeof(struct sockaddr)]; -}; - -// This structure is a duplicate of if_data on FreeBSD 8-STABLE. -// See /usr/include/net/if.h. -struct if_data8 { - u_char ifi_type; - u_char ifi_physical; - u_char ifi_addrlen; - u_char ifi_hdrlen; - u_char ifi_link_state; - u_char ifi_spare_char1; - u_char ifi_spare_char2; - u_char ifi_datalen; - u_long ifi_mtu; - u_long ifi_metric; - u_long ifi_baudrate; - u_long ifi_ipackets; - u_long ifi_ierrors; - u_long ifi_opackets; - u_long ifi_oerrors; - u_long ifi_collisions; - u_long ifi_ibytes; - u_long ifi_obytes; - u_long ifi_imcasts; - u_long ifi_omcasts; - u_long ifi_iqdrops; - u_long ifi_noproto; - u_long ifi_hwassist; -// FIXME: these are now unions, so maybe need to change definitions? -#undef ifi_epoch - time_t ifi_epoch; -#undef ifi_lastchange - struct timeval ifi_lastchange; -}; - -// This structure is a duplicate of if_msghdr on FreeBSD 8-STABLE. -// See /usr/include/net/if.h. -struct if_msghdr8 { - u_short ifm_msglen; - u_char ifm_version; - u_char ifm_type; - int ifm_addrs; - int ifm_flags; - u_short ifm_index; - struct if_data8 ifm_data; -}; -*/ -import "C" - -// Machine characteristics - -const ( - SizeofPtr = C.sizeofPtr - SizeofShort = C.sizeof_short - SizeofInt = C.sizeof_int - SizeofLong = C.sizeof_long - SizeofLongLong = C.sizeof_longlong -) - -// Basic types - -type ( - _C_short C.short - _C_int C.int - _C_long C.long - _C_long_long C.longlong -) - -// Time - -type Timespec C.struct_timespec - -type Timeval C.struct_timeval - -// Processes - -type Rusage C.struct_rusage - -type Rlimit C.struct_rlimit - -type _Gid_t C.gid_t - -// Files - -const ( - _statfsVersion = C.STATFS_VERSION - _dirblksiz = C.DIRBLKSIZ -) - -type Stat_t C.struct_stat - -type stat_freebsd11_t C.struct_freebsd11_stat - -type Statfs_t C.struct_statfs - -type statfs_freebsd11_t C.struct_freebsd11_statfs - -type Flock_t C.struct_flock - -type Dirent C.struct_dirent - -type dirent_freebsd11 C.struct_freebsd11_dirent - -type Fsid C.struct_fsid - -// File system limits - -const ( - PathMax = C.PATH_MAX -) - -// Advice to Fadvise - -const ( - FADV_NORMAL = C.POSIX_FADV_NORMAL - FADV_RANDOM = C.POSIX_FADV_RANDOM - FADV_SEQUENTIAL = C.POSIX_FADV_SEQUENTIAL - FADV_WILLNEED = C.POSIX_FADV_WILLNEED - FADV_DONTNEED = C.POSIX_FADV_DONTNEED - FADV_NOREUSE = C.POSIX_FADV_NOREUSE -) - -// Sockets - -type RawSockaddrInet4 C.struct_sockaddr_in - -type RawSockaddrInet6 C.struct_sockaddr_in6 - -type RawSockaddrUnix C.struct_sockaddr_un - -type RawSockaddrDatalink C.struct_sockaddr_dl - -type RawSockaddr C.struct_sockaddr - -type RawSockaddrAny C.struct_sockaddr_any - -type _Socklen C.socklen_t - -type Linger C.struct_linger - -type Iovec C.struct_iovec - -type IPMreq C.struct_ip_mreq - -type IPMreqn C.struct_ip_mreqn - -type IPv6Mreq C.struct_ipv6_mreq - -type Msghdr C.struct_msghdr - -type Cmsghdr C.struct_cmsghdr - -type Inet6Pktinfo C.struct_in6_pktinfo - -type IPv6MTUInfo C.struct_ip6_mtuinfo - -type ICMPv6Filter C.struct_icmp6_filter - -const ( - SizeofSockaddrInet4 = C.sizeof_struct_sockaddr_in - SizeofSockaddrInet6 = C.sizeof_struct_sockaddr_in6 - SizeofSockaddrAny = C.sizeof_struct_sockaddr_any - SizeofSockaddrUnix = C.sizeof_struct_sockaddr_un - SizeofSockaddrDatalink = C.sizeof_struct_sockaddr_dl - SizeofLinger = C.sizeof_struct_linger - SizeofIPMreq = C.sizeof_struct_ip_mreq - SizeofIPMreqn = C.sizeof_struct_ip_mreqn - SizeofIPv6Mreq = C.sizeof_struct_ipv6_mreq - SizeofMsghdr = C.sizeof_struct_msghdr - SizeofCmsghdr = C.sizeof_struct_cmsghdr - SizeofInet6Pktinfo = C.sizeof_struct_in6_pktinfo - SizeofIPv6MTUInfo = C.sizeof_struct_ip6_mtuinfo - SizeofICMPv6Filter = C.sizeof_struct_icmp6_filter -) - -// Ptrace requests - -const ( - PTRACE_ATTACH = C.PT_ATTACH - PTRACE_CONT = C.PT_CONTINUE - PTRACE_DETACH = C.PT_DETACH - PTRACE_GETFPREGS = C.PT_GETFPREGS - PTRACE_GETFSBASE = C.PT_GETFSBASE - PTRACE_GETLWPLIST = C.PT_GETLWPLIST - PTRACE_GETNUMLWPS = C.PT_GETNUMLWPS - PTRACE_GETREGS = C.PT_GETREGS - PTRACE_GETXSTATE = C.PT_GETXSTATE - PTRACE_IO = C.PT_IO - PTRACE_KILL = C.PT_KILL - PTRACE_LWPEVENTS = C.PT_LWP_EVENTS - PTRACE_LWPINFO = C.PT_LWPINFO - PTRACE_SETFPREGS = C.PT_SETFPREGS - PTRACE_SETREGS = C.PT_SETREGS - PTRACE_SINGLESTEP = C.PT_STEP - PTRACE_TRACEME = C.PT_TRACE_ME -) - -const ( - PIOD_READ_D = C.PIOD_READ_D - PIOD_WRITE_D = C.PIOD_WRITE_D - PIOD_READ_I = C.PIOD_READ_I - PIOD_WRITE_I = C.PIOD_WRITE_I -) - -const ( - PL_FLAG_BORN = C.PL_FLAG_BORN - PL_FLAG_EXITED = C.PL_FLAG_EXITED - PL_FLAG_SI = C.PL_FLAG_SI -) - -const ( - TRAP_BRKPT = C.TRAP_BRKPT - TRAP_TRACE = C.TRAP_TRACE -) - -type PtraceLwpInfoStruct C.struct_ptrace_lwpinfo - -type __Siginfo C.struct___siginfo - -type Sigset_t C.sigset_t - -type Reg C.struct_reg - -type FpReg C.struct_fpreg - -type PtraceIoDesc C.struct_ptrace_io_desc - -// Events (kqueue, kevent) - -type Kevent_t C.struct_kevent_freebsd11 - -// Select - -type FdSet C.fd_set - -// Routing and interface messages - -const ( - sizeofIfMsghdr = C.sizeof_struct_if_msghdr - SizeofIfMsghdr = C.sizeof_struct_if_msghdr8 - sizeofIfData = C.sizeof_struct_if_data - SizeofIfData = C.sizeof_struct_if_data8 - SizeofIfaMsghdr = C.sizeof_struct_ifa_msghdr - SizeofIfmaMsghdr = C.sizeof_struct_ifma_msghdr - SizeofIfAnnounceMsghdr = C.sizeof_struct_if_announcemsghdr - SizeofRtMsghdr = C.sizeof_struct_rt_msghdr - SizeofRtMetrics = C.sizeof_struct_rt_metrics -) - -type ifMsghdr C.struct_if_msghdr - -type IfMsghdr C.struct_if_msghdr8 - -type ifData C.struct_if_data - -type IfData C.struct_if_data8 - -type IfaMsghdr C.struct_ifa_msghdr - -type IfmaMsghdr C.struct_ifma_msghdr - -type IfAnnounceMsghdr C.struct_if_announcemsghdr - -type RtMsghdr C.struct_rt_msghdr - -type RtMetrics C.struct_rt_metrics - -// Berkeley packet filter - -const ( - SizeofBpfVersion = C.sizeof_struct_bpf_version - SizeofBpfStat = C.sizeof_struct_bpf_stat - SizeofBpfZbuf = C.sizeof_struct_bpf_zbuf - SizeofBpfProgram = C.sizeof_struct_bpf_program - SizeofBpfInsn = C.sizeof_struct_bpf_insn - SizeofBpfHdr = C.sizeof_struct_bpf_hdr - SizeofBpfZbufHeader = C.sizeof_struct_bpf_zbuf_header -) - -type BpfVersion C.struct_bpf_version - -type BpfStat C.struct_bpf_stat - -type BpfZbuf C.struct_bpf_zbuf - -type BpfProgram C.struct_bpf_program - -type BpfInsn C.struct_bpf_insn - -type BpfHdr C.struct_bpf_hdr - -type BpfZbufHeader C.struct_bpf_zbuf_header - -// Terminal handling - -type Termios C.struct_termios - -type Winsize C.struct_winsize - -// fchmodat-like syscalls. - -const ( - AT_FDCWD = C.AT_FDCWD - AT_REMOVEDIR = C.AT_REMOVEDIR - AT_SYMLINK_FOLLOW = C.AT_SYMLINK_FOLLOW - AT_SYMLINK_NOFOLLOW = C.AT_SYMLINK_NOFOLLOW -) - -// poll - -type PollFd C.struct_pollfd - -const ( - POLLERR = C.POLLERR - POLLHUP = C.POLLHUP - POLLIN = C.POLLIN - POLLINIGNEOF = C.POLLINIGNEOF - POLLNVAL = C.POLLNVAL - POLLOUT = C.POLLOUT - POLLPRI = C.POLLPRI - POLLRDBAND = C.POLLRDBAND - POLLRDNORM = C.POLLRDNORM - POLLWRBAND = C.POLLWRBAND - POLLWRNORM = C.POLLWRNORM -) - -// Capabilities - -type CapRights C.struct_cap_rights - -// Uname - -type Utsname C.struct_utsname - -// Clockinfo - -const SizeofClockinfo = C.sizeof_struct_clockinfo - -type Clockinfo C.struct_clockinfo diff --git a/vendor/golang.org/x/sys/unix/types_netbsd.go b/vendor/golang.org/x/sys/unix/types_netbsd.go deleted file mode 100644 index 0a81aadb8..000000000 --- a/vendor/golang.org/x/sys/unix/types_netbsd.go +++ /dev/null @@ -1,300 +0,0 @@ -// Copyright 2009 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -// +build ignore - -/* -Input to cgo -godefs. See README.md -*/ - -// +godefs map struct_in_addr [4]byte /* in_addr */ -// +godefs map struct_in6_addr [16]byte /* in6_addr */ - -package unix - -/* -#define KERNEL -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -enum { - sizeofPtr = sizeof(void*), -}; - -union sockaddr_all { - struct sockaddr s1; // this one gets used for fields - struct sockaddr_in s2; // these pad it out - struct sockaddr_in6 s3; - struct sockaddr_un s4; - struct sockaddr_dl s5; -}; - -struct sockaddr_any { - struct sockaddr addr; - char pad[sizeof(union sockaddr_all) - sizeof(struct sockaddr)]; -}; - -*/ -import "C" - -// Machine characteristics - -const ( - SizeofPtr = C.sizeofPtr - SizeofShort = C.sizeof_short - SizeofInt = C.sizeof_int - SizeofLong = C.sizeof_long - SizeofLongLong = C.sizeof_longlong -) - -// Basic types - -type ( - _C_short C.short - _C_int C.int - _C_long C.long - _C_long_long C.longlong -) - -// Time - -type Timespec C.struct_timespec - -type Timeval C.struct_timeval - -// Processes - -type Rusage C.struct_rusage - -type Rlimit C.struct_rlimit - -type _Gid_t C.gid_t - -// Files - -type Stat_t C.struct_stat - -type Statfs_t C.struct_statfs - -type Statvfs_t C.struct_statvfs - -type Flock_t C.struct_flock - -type Dirent C.struct_dirent - -type Fsid C.fsid_t - -// File system limits - -const ( - PathMax = C.PATH_MAX -) - -// Fstatvfs/Statvfs flags - -const ( - ST_WAIT = C.ST_WAIT - ST_NOWAIT = C.ST_NOWAIT -) - -// Advice to Fadvise - -const ( - FADV_NORMAL = C.POSIX_FADV_NORMAL - FADV_RANDOM = C.POSIX_FADV_RANDOM - FADV_SEQUENTIAL = C.POSIX_FADV_SEQUENTIAL - FADV_WILLNEED = C.POSIX_FADV_WILLNEED - FADV_DONTNEED = C.POSIX_FADV_DONTNEED - FADV_NOREUSE = C.POSIX_FADV_NOREUSE -) - -// Sockets - -type RawSockaddrInet4 C.struct_sockaddr_in - -type RawSockaddrInet6 C.struct_sockaddr_in6 - -type RawSockaddrUnix C.struct_sockaddr_un - -type RawSockaddrDatalink C.struct_sockaddr_dl - -type RawSockaddr C.struct_sockaddr - -type RawSockaddrAny C.struct_sockaddr_any - -type _Socklen C.socklen_t - -type Linger C.struct_linger - -type Iovec C.struct_iovec - -type IPMreq C.struct_ip_mreq - -type IPv6Mreq C.struct_ipv6_mreq - -type Msghdr C.struct_msghdr - -type Cmsghdr C.struct_cmsghdr - -type Inet6Pktinfo C.struct_in6_pktinfo - -type IPv6MTUInfo C.struct_ip6_mtuinfo - -type ICMPv6Filter C.struct_icmp6_filter - -const ( - SizeofSockaddrInet4 = C.sizeof_struct_sockaddr_in - SizeofSockaddrInet6 = C.sizeof_struct_sockaddr_in6 - SizeofSockaddrAny = C.sizeof_struct_sockaddr_any - SizeofSockaddrUnix = C.sizeof_struct_sockaddr_un - SizeofSockaddrDatalink = C.sizeof_struct_sockaddr_dl - SizeofLinger = C.sizeof_struct_linger - SizeofIPMreq = C.sizeof_struct_ip_mreq - SizeofIPv6Mreq = C.sizeof_struct_ipv6_mreq - SizeofMsghdr = C.sizeof_struct_msghdr - SizeofCmsghdr = C.sizeof_struct_cmsghdr - SizeofInet6Pktinfo = C.sizeof_struct_in6_pktinfo - SizeofIPv6MTUInfo = C.sizeof_struct_ip6_mtuinfo - SizeofICMPv6Filter = C.sizeof_struct_icmp6_filter -) - -// Ptrace requests - -const ( - PTRACE_TRACEME = C.PT_TRACE_ME - PTRACE_CONT = C.PT_CONTINUE - PTRACE_KILL = C.PT_KILL -) - -// Events (kqueue, kevent) - -type Kevent_t C.struct_kevent - -// Select - -type FdSet C.fd_set - -// Routing and interface messages - -const ( - SizeofIfMsghdr = C.sizeof_struct_if_msghdr - SizeofIfData = C.sizeof_struct_if_data - SizeofIfaMsghdr = C.sizeof_struct_ifa_msghdr - SizeofIfAnnounceMsghdr = C.sizeof_struct_if_announcemsghdr - SizeofRtMsghdr = C.sizeof_struct_rt_msghdr - SizeofRtMetrics = C.sizeof_struct_rt_metrics -) - -type IfMsghdr C.struct_if_msghdr - -type IfData C.struct_if_data - -type IfaMsghdr C.struct_ifa_msghdr - -type IfAnnounceMsghdr C.struct_if_announcemsghdr - -type RtMsghdr C.struct_rt_msghdr - -type RtMetrics C.struct_rt_metrics - -type Mclpool C.struct_mclpool - -// Berkeley packet filter - -const ( - SizeofBpfVersion = C.sizeof_struct_bpf_version - SizeofBpfStat = C.sizeof_struct_bpf_stat - SizeofBpfProgram = C.sizeof_struct_bpf_program - SizeofBpfInsn = C.sizeof_struct_bpf_insn - SizeofBpfHdr = C.sizeof_struct_bpf_hdr -) - -type BpfVersion C.struct_bpf_version - -type BpfStat C.struct_bpf_stat - -type BpfProgram C.struct_bpf_program - -type BpfInsn C.struct_bpf_insn - -type BpfHdr C.struct_bpf_hdr - -type BpfTimeval C.struct_bpf_timeval - -// Terminal handling - -type Termios C.struct_termios - -type Winsize C.struct_winsize - -type Ptmget C.struct_ptmget - -// fchmodat-like syscalls. - -const ( - AT_FDCWD = C.AT_FDCWD - AT_SYMLINK_FOLLOW = C.AT_SYMLINK_FOLLOW - AT_SYMLINK_NOFOLLOW = C.AT_SYMLINK_NOFOLLOW -) - -// poll - -type PollFd C.struct_pollfd - -const ( - POLLERR = C.POLLERR - POLLHUP = C.POLLHUP - POLLIN = C.POLLIN - POLLNVAL = C.POLLNVAL - POLLOUT = C.POLLOUT - POLLPRI = C.POLLPRI - POLLRDBAND = C.POLLRDBAND - POLLRDNORM = C.POLLRDNORM - POLLWRBAND = C.POLLWRBAND - POLLWRNORM = C.POLLWRNORM -) - -// Sysctl - -type Sysctlnode C.struct_sysctlnode - -// Uname - -type Utsname C.struct_utsname - -// Clockinfo - -const SizeofClockinfo = C.sizeof_struct_clockinfo - -type Clockinfo C.struct_clockinfo diff --git a/vendor/golang.org/x/sys/unix/types_openbsd.go b/vendor/golang.org/x/sys/unix/types_openbsd.go deleted file mode 100644 index 775cb57dc..000000000 --- a/vendor/golang.org/x/sys/unix/types_openbsd.go +++ /dev/null @@ -1,283 +0,0 @@ -// Copyright 2009 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -// +build ignore - -/* -Input to cgo -godefs. See README.md -*/ - -// +godefs map struct_in_addr [4]byte /* in_addr */ -// +godefs map struct_in6_addr [16]byte /* in6_addr */ - -package unix - -/* -#define KERNEL -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -enum { - sizeofPtr = sizeof(void*), -}; - -union sockaddr_all { - struct sockaddr s1; // this one gets used for fields - struct sockaddr_in s2; // these pad it out - struct sockaddr_in6 s3; - struct sockaddr_un s4; - struct sockaddr_dl s5; -}; - -struct sockaddr_any { - struct sockaddr addr; - char pad[sizeof(union sockaddr_all) - sizeof(struct sockaddr)]; -}; - -*/ -import "C" - -// Machine characteristics - -const ( - SizeofPtr = C.sizeofPtr - SizeofShort = C.sizeof_short - SizeofInt = C.sizeof_int - SizeofLong = C.sizeof_long - SizeofLongLong = C.sizeof_longlong -) - -// Basic types - -type ( - _C_short C.short - _C_int C.int - _C_long C.long - _C_long_long C.longlong -) - -// Time - -type Timespec C.struct_timespec - -type Timeval C.struct_timeval - -// Processes - -type Rusage C.struct_rusage - -type Rlimit C.struct_rlimit - -type _Gid_t C.gid_t - -// Files - -type Stat_t C.struct_stat - -type Statfs_t C.struct_statfs - -type Flock_t C.struct_flock - -type Dirent C.struct_dirent - -type Fsid C.fsid_t - -// File system limits - -const ( - PathMax = C.PATH_MAX -) - -// Sockets - -type RawSockaddrInet4 C.struct_sockaddr_in - -type RawSockaddrInet6 C.struct_sockaddr_in6 - -type RawSockaddrUnix C.struct_sockaddr_un - -type RawSockaddrDatalink C.struct_sockaddr_dl - -type RawSockaddr C.struct_sockaddr - -type RawSockaddrAny C.struct_sockaddr_any - -type _Socklen C.socklen_t - -type Linger C.struct_linger - -type Iovec C.struct_iovec - -type IPMreq C.struct_ip_mreq - -type IPv6Mreq C.struct_ipv6_mreq - -type Msghdr C.struct_msghdr - -type Cmsghdr C.struct_cmsghdr - -type Inet6Pktinfo C.struct_in6_pktinfo - -type IPv6MTUInfo C.struct_ip6_mtuinfo - -type ICMPv6Filter C.struct_icmp6_filter - -const ( - SizeofSockaddrInet4 = C.sizeof_struct_sockaddr_in - SizeofSockaddrInet6 = C.sizeof_struct_sockaddr_in6 - SizeofSockaddrAny = C.sizeof_struct_sockaddr_any - SizeofSockaddrUnix = C.sizeof_struct_sockaddr_un - SizeofSockaddrDatalink = C.sizeof_struct_sockaddr_dl - SizeofLinger = C.sizeof_struct_linger - SizeofIPMreq = C.sizeof_struct_ip_mreq - SizeofIPv6Mreq = C.sizeof_struct_ipv6_mreq - SizeofMsghdr = C.sizeof_struct_msghdr - SizeofCmsghdr = C.sizeof_struct_cmsghdr - SizeofInet6Pktinfo = C.sizeof_struct_in6_pktinfo - SizeofIPv6MTUInfo = C.sizeof_struct_ip6_mtuinfo - SizeofICMPv6Filter = C.sizeof_struct_icmp6_filter -) - -// Ptrace requests - -const ( - PTRACE_TRACEME = C.PT_TRACE_ME - PTRACE_CONT = C.PT_CONTINUE - PTRACE_KILL = C.PT_KILL -) - -// Events (kqueue, kevent) - -type Kevent_t C.struct_kevent - -// Select - -type FdSet C.fd_set - -// Routing and interface messages - -const ( - SizeofIfMsghdr = C.sizeof_struct_if_msghdr - SizeofIfData = C.sizeof_struct_if_data - SizeofIfaMsghdr = C.sizeof_struct_ifa_msghdr - SizeofIfAnnounceMsghdr = C.sizeof_struct_if_announcemsghdr - SizeofRtMsghdr = C.sizeof_struct_rt_msghdr - SizeofRtMetrics = C.sizeof_struct_rt_metrics -) - -type IfMsghdr C.struct_if_msghdr - -type IfData C.struct_if_data - -type IfaMsghdr C.struct_ifa_msghdr - -type IfAnnounceMsghdr C.struct_if_announcemsghdr - -type RtMsghdr C.struct_rt_msghdr - -type RtMetrics C.struct_rt_metrics - -type Mclpool C.struct_mclpool - -// Berkeley packet filter - -const ( - SizeofBpfVersion = C.sizeof_struct_bpf_version - SizeofBpfStat = C.sizeof_struct_bpf_stat - SizeofBpfProgram = C.sizeof_struct_bpf_program - SizeofBpfInsn = C.sizeof_struct_bpf_insn - SizeofBpfHdr = C.sizeof_struct_bpf_hdr -) - -type BpfVersion C.struct_bpf_version - -type BpfStat C.struct_bpf_stat - -type BpfProgram C.struct_bpf_program - -type BpfInsn C.struct_bpf_insn - -type BpfHdr C.struct_bpf_hdr - -type BpfTimeval C.struct_bpf_timeval - -// Terminal handling - -type Termios C.struct_termios - -type Winsize C.struct_winsize - -// fchmodat-like syscalls. - -const ( - AT_FDCWD = C.AT_FDCWD - AT_SYMLINK_FOLLOW = C.AT_SYMLINK_FOLLOW - AT_SYMLINK_NOFOLLOW = C.AT_SYMLINK_NOFOLLOW -) - -// poll - -type PollFd C.struct_pollfd - -const ( - POLLERR = C.POLLERR - POLLHUP = C.POLLHUP - POLLIN = C.POLLIN - POLLNVAL = C.POLLNVAL - POLLOUT = C.POLLOUT - POLLPRI = C.POLLPRI - POLLRDBAND = C.POLLRDBAND - POLLRDNORM = C.POLLRDNORM - POLLWRBAND = C.POLLWRBAND - POLLWRNORM = C.POLLWRNORM -) - -// Signal Sets - -type Sigset_t C.sigset_t - -// Uname - -type Utsname C.struct_utsname - -// Uvmexp - -const SizeofUvmexp = C.sizeof_struct_uvmexp - -type Uvmexp C.struct_uvmexp - -// Clockinfo - -const SizeofClockinfo = C.sizeof_struct_clockinfo - -type Clockinfo C.struct_clockinfo diff --git a/vendor/golang.org/x/sys/unix/types_solaris.go b/vendor/golang.org/x/sys/unix/types_solaris.go deleted file mode 100644 index d713f09e0..000000000 --- a/vendor/golang.org/x/sys/unix/types_solaris.go +++ /dev/null @@ -1,269 +0,0 @@ -// Copyright 2009 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -// +build ignore - -/* -Input to cgo -godefs. See README.md -*/ - -// +godefs map struct_in_addr [4]byte /* in_addr */ -// +godefs map struct_in6_addr [16]byte /* in6_addr */ - -package unix - -/* -#define KERNEL -// These defines ensure that builds done on newer versions of Solaris are -// backwards-compatible with older versions of Solaris and -// OpenSolaris-based derivatives. -#define __USE_SUNOS_SOCKETS__ // msghdr -#define __USE_LEGACY_PROTOTYPES__ // iovec -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -enum { - sizeofPtr = sizeof(void*), -}; - -union sockaddr_all { - struct sockaddr s1; // this one gets used for fields - struct sockaddr_in s2; // these pad it out - struct sockaddr_in6 s3; - struct sockaddr_un s4; - struct sockaddr_dl s5; -}; - -struct sockaddr_any { - struct sockaddr addr; - char pad[sizeof(union sockaddr_all) - sizeof(struct sockaddr)]; -}; - -*/ -import "C" - -// Machine characteristics - -const ( - SizeofPtr = C.sizeofPtr - SizeofShort = C.sizeof_short - SizeofInt = C.sizeof_int - SizeofLong = C.sizeof_long - SizeofLongLong = C.sizeof_longlong - PathMax = C.PATH_MAX - MaxHostNameLen = C.MAXHOSTNAMELEN -) - -// Basic types - -type ( - _C_short C.short - _C_int C.int - _C_long C.long - _C_long_long C.longlong -) - -// Time - -type Timespec C.struct_timespec - -type Timeval C.struct_timeval - -type Timeval32 C.struct_timeval32 - -type Tms C.struct_tms - -type Utimbuf C.struct_utimbuf - -// Processes - -type Rusage C.struct_rusage - -type Rlimit C.struct_rlimit - -type _Gid_t C.gid_t - -// Files - -type Stat_t C.struct_stat - -type Flock_t C.struct_flock - -type Dirent C.struct_dirent - -// Filesystems - -type _Fsblkcnt_t C.fsblkcnt_t - -type Statvfs_t C.struct_statvfs - -// Sockets - -type RawSockaddrInet4 C.struct_sockaddr_in - -type RawSockaddrInet6 C.struct_sockaddr_in6 - -type RawSockaddrUnix C.struct_sockaddr_un - -type RawSockaddrDatalink C.struct_sockaddr_dl - -type RawSockaddr C.struct_sockaddr - -type RawSockaddrAny C.struct_sockaddr_any - -type _Socklen C.socklen_t - -type Linger C.struct_linger - -type Iovec C.struct_iovec - -type IPMreq C.struct_ip_mreq - -type IPv6Mreq C.struct_ipv6_mreq - -type Msghdr C.struct_msghdr - -type Cmsghdr C.struct_cmsghdr - -type Inet4Pktinfo C.struct_in_pktinfo - -type Inet6Pktinfo C.struct_in6_pktinfo - -type IPv6MTUInfo C.struct_ip6_mtuinfo - -type ICMPv6Filter C.struct_icmp6_filter - -const ( - SizeofSockaddrInet4 = C.sizeof_struct_sockaddr_in - SizeofSockaddrInet6 = C.sizeof_struct_sockaddr_in6 - SizeofSockaddrAny = C.sizeof_struct_sockaddr_any - SizeofSockaddrUnix = C.sizeof_struct_sockaddr_un - SizeofSockaddrDatalink = C.sizeof_struct_sockaddr_dl - SizeofLinger = C.sizeof_struct_linger - SizeofIPMreq = C.sizeof_struct_ip_mreq - SizeofIPv6Mreq = C.sizeof_struct_ipv6_mreq - SizeofMsghdr = C.sizeof_struct_msghdr - SizeofCmsghdr = C.sizeof_struct_cmsghdr - SizeofInet4Pktinfo = C.sizeof_struct_in_pktinfo - SizeofInet6Pktinfo = C.sizeof_struct_in6_pktinfo - SizeofIPv6MTUInfo = C.sizeof_struct_ip6_mtuinfo - SizeofICMPv6Filter = C.sizeof_struct_icmp6_filter -) - -// Select - -type FdSet C.fd_set - -// Misc - -type Utsname C.struct_utsname - -type Ustat_t C.struct_ustat - -const ( - AT_FDCWD = C.AT_FDCWD - AT_SYMLINK_NOFOLLOW = C.AT_SYMLINK_NOFOLLOW - AT_SYMLINK_FOLLOW = C.AT_SYMLINK_FOLLOW - AT_REMOVEDIR = C.AT_REMOVEDIR - AT_EACCESS = C.AT_EACCESS -) - -// Routing and interface messages - -const ( - SizeofIfMsghdr = C.sizeof_struct_if_msghdr - SizeofIfData = C.sizeof_struct_if_data - SizeofIfaMsghdr = C.sizeof_struct_ifa_msghdr - SizeofRtMsghdr = C.sizeof_struct_rt_msghdr - SizeofRtMetrics = C.sizeof_struct_rt_metrics -) - -type IfMsghdr C.struct_if_msghdr - -type IfData C.struct_if_data - -type IfaMsghdr C.struct_ifa_msghdr - -type RtMsghdr C.struct_rt_msghdr - -type RtMetrics C.struct_rt_metrics - -// Berkeley packet filter - -const ( - SizeofBpfVersion = C.sizeof_struct_bpf_version - SizeofBpfStat = C.sizeof_struct_bpf_stat - SizeofBpfProgram = C.sizeof_struct_bpf_program - SizeofBpfInsn = C.sizeof_struct_bpf_insn - SizeofBpfHdr = C.sizeof_struct_bpf_hdr -) - -type BpfVersion C.struct_bpf_version - -type BpfStat C.struct_bpf_stat - -type BpfProgram C.struct_bpf_program - -type BpfInsn C.struct_bpf_insn - -type BpfTimeval C.struct_bpf_timeval - -type BpfHdr C.struct_bpf_hdr - -// Terminal handling - -type Termios C.struct_termios - -type Termio C.struct_termio - -type Winsize C.struct_winsize - -// poll - -type PollFd C.struct_pollfd - -const ( - POLLERR = C.POLLERR - POLLHUP = C.POLLHUP - POLLIN = C.POLLIN - POLLNVAL = C.POLLNVAL - POLLOUT = C.POLLOUT - POLLPRI = C.POLLPRI - POLLRDBAND = C.POLLRDBAND - POLLRDNORM = C.POLLRDNORM - POLLWRBAND = C.POLLWRBAND - POLLWRNORM = C.POLLWRNORM -) diff --git a/vendor/golang.org/x/text/transform/transform.go b/vendor/golang.org/x/text/transform/transform.go index 277e6e343..520b9ada0 100644 --- a/vendor/golang.org/x/text/transform/transform.go +++ b/vendor/golang.org/x/text/transform/transform.go @@ -6,7 +6,7 @@ // bytes passing through as well as various transformations. Example // transformations provided by other packages include normalization and // conversion between character sets. -package transform +package transform // import "golang.org/x/text/transform" import ( "bytes" diff --git a/vendor/golang.org/x/text/unicode/bidi/bidi.go b/vendor/golang.org/x/text/unicode/bidi/bidi.go index fd53d0712..e8edc54cc 100644 --- a/vendor/golang.org/x/text/unicode/bidi/bidi.go +++ b/vendor/golang.org/x/text/unicode/bidi/bidi.go @@ -10,7 +10,7 @@ // // NOTE: UNDER CONSTRUCTION. This API may change in backwards incompatible ways // and without notice. -package bidi +package bidi // import "golang.org/x/text/unicode/bidi" // TODO: // The following functionality would not be hard to implement, but hinges on diff --git a/vendor/golang.org/x/text/unicode/bidi/gen.go b/vendor/golang.org/x/text/unicode/bidi/gen.go deleted file mode 100644 index 987fc169c..000000000 --- a/vendor/golang.org/x/text/unicode/bidi/gen.go +++ /dev/null @@ -1,133 +0,0 @@ -// Copyright 2015 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -// +build ignore - -package main - -import ( - "flag" - "log" - - "golang.org/x/text/internal/gen" - "golang.org/x/text/internal/triegen" - "golang.org/x/text/internal/ucd" -) - -var outputFile = flag.String("out", "tables.go", "output file") - -func main() { - gen.Init() - gen.Repackage("gen_trieval.go", "trieval.go", "bidi") - gen.Repackage("gen_ranges.go", "ranges_test.go", "bidi") - - genTables() -} - -// bidiClass names and codes taken from class "bc" in -// https://www.unicode.org/Public/8.0.0/ucd/PropertyValueAliases.txt -var bidiClass = map[string]Class{ - "AL": AL, // ArabicLetter - "AN": AN, // ArabicNumber - "B": B, // ParagraphSeparator - "BN": BN, // BoundaryNeutral - "CS": CS, // CommonSeparator - "EN": EN, // EuropeanNumber - "ES": ES, // EuropeanSeparator - "ET": ET, // EuropeanTerminator - "L": L, // LeftToRight - "NSM": NSM, // NonspacingMark - "ON": ON, // OtherNeutral - "R": R, // RightToLeft - "S": S, // SegmentSeparator - "WS": WS, // WhiteSpace - - "FSI": Control, - "PDF": Control, - "PDI": Control, - "LRE": Control, - "LRI": Control, - "LRO": Control, - "RLE": Control, - "RLI": Control, - "RLO": Control, -} - -func genTables() { - if numClass > 0x0F { - log.Fatalf("Too many Class constants (%#x > 0x0F).", numClass) - } - w := gen.NewCodeWriter() - defer w.WriteVersionedGoFile(*outputFile, "bidi") - - gen.WriteUnicodeVersion(w) - - t := triegen.NewTrie("bidi") - - // Build data about bracket mapping. These bits need to be or-ed with - // any other bits. - orMask := map[rune]uint64{} - - xorMap := map[rune]int{} - xorMasks := []rune{0} // First value is no-op. - - ucd.Parse(gen.OpenUCDFile("BidiBrackets.txt"), func(p *ucd.Parser) { - r1 := p.Rune(0) - r2 := p.Rune(1) - xor := r1 ^ r2 - if _, ok := xorMap[xor]; !ok { - xorMap[xor] = len(xorMasks) - xorMasks = append(xorMasks, xor) - } - entry := uint64(xorMap[xor]) << xorMaskShift - switch p.String(2) { - case "o": - entry |= openMask - case "c", "n": - default: - log.Fatalf("Unknown bracket class %q.", p.String(2)) - } - orMask[r1] = entry - }) - - w.WriteComment(` - xorMasks contains masks to be xor-ed with brackets to get the reverse - version.`) - w.WriteVar("xorMasks", xorMasks) - - done := map[rune]bool{} - - insert := func(r rune, c Class) { - if !done[r] { - t.Insert(r, orMask[r]|uint64(c)) - done[r] = true - } - } - - // Insert the derived BiDi properties. - ucd.Parse(gen.OpenUCDFile("extracted/DerivedBidiClass.txt"), func(p *ucd.Parser) { - r := p.Rune(0) - class, ok := bidiClass[p.String(1)] - if !ok { - log.Fatalf("%U: Unknown BiDi class %q", r, p.String(1)) - } - insert(r, class) - }) - visitDefaults(insert) - - // TODO: use sparse blocks. This would reduce table size considerably - // from the looks of it. - - sz, err := t.Gen(w) - if err != nil { - log.Fatal(err) - } - w.Size += sz -} - -// dummy values to make methods in gen_common compile. The real versions -// will be generated by this file to tables.go. -var ( - xorMasks []rune -) diff --git a/vendor/golang.org/x/text/unicode/bidi/gen_ranges.go b/vendor/golang.org/x/text/unicode/bidi/gen_ranges.go deleted file mode 100644 index 02c3b505d..000000000 --- a/vendor/golang.org/x/text/unicode/bidi/gen_ranges.go +++ /dev/null @@ -1,57 +0,0 @@ -// Copyright 2015 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -// +build ignore - -package main - -import ( - "unicode" - - "golang.org/x/text/internal/gen" - "golang.org/x/text/internal/ucd" - "golang.org/x/text/unicode/rangetable" -) - -// These tables are hand-extracted from: -// https://www.unicode.org/Public/8.0.0/ucd/extracted/DerivedBidiClass.txt -func visitDefaults(fn func(r rune, c Class)) { - // first write default values for ranges listed above. - visitRunes(fn, AL, []rune{ - 0x0600, 0x07BF, // Arabic - 0x08A0, 0x08FF, // Arabic Extended-A - 0xFB50, 0xFDCF, // Arabic Presentation Forms - 0xFDF0, 0xFDFF, - 0xFE70, 0xFEFF, - 0x0001EE00, 0x0001EEFF, // Arabic Mathematical Alpha Symbols - }) - visitRunes(fn, R, []rune{ - 0x0590, 0x05FF, // Hebrew - 0x07C0, 0x089F, // Nko et al. - 0xFB1D, 0xFB4F, - 0x00010800, 0x00010FFF, // Cypriot Syllabary et. al. - 0x0001E800, 0x0001EDFF, - 0x0001EF00, 0x0001EFFF, - }) - visitRunes(fn, ET, []rune{ // European Terminator - 0x20A0, 0x20Cf, // Currency symbols - }) - rangetable.Visit(unicode.Noncharacter_Code_Point, func(r rune) { - fn(r, BN) // Boundary Neutral - }) - ucd.Parse(gen.OpenUCDFile("DerivedCoreProperties.txt"), func(p *ucd.Parser) { - if p.String(1) == "Default_Ignorable_Code_Point" { - fn(p.Rune(0), BN) // Boundary Neutral - } - }) -} - -func visitRunes(fn func(r rune, c Class), c Class, runes []rune) { - for i := 0; i < len(runes); i += 2 { - lo, hi := runes[i], runes[i+1] - for j := lo; j <= hi; j++ { - fn(j, c) - } - } -} diff --git a/vendor/golang.org/x/text/unicode/bidi/gen_trieval.go b/vendor/golang.org/x/text/unicode/bidi/gen_trieval.go deleted file mode 100644 index 9cb994289..000000000 --- a/vendor/golang.org/x/text/unicode/bidi/gen_trieval.go +++ /dev/null @@ -1,64 +0,0 @@ -// Copyright 2015 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -// +build ignore - -package main - -// Class is the Unicode BiDi class. Each rune has a single class. -type Class uint - -const ( - L Class = iota // LeftToRight - R // RightToLeft - EN // EuropeanNumber - ES // EuropeanSeparator - ET // EuropeanTerminator - AN // ArabicNumber - CS // CommonSeparator - B // ParagraphSeparator - S // SegmentSeparator - WS // WhiteSpace - ON // OtherNeutral - BN // BoundaryNeutral - NSM // NonspacingMark - AL // ArabicLetter - Control // Control LRO - PDI - - numClass - - LRO // LeftToRightOverride - RLO // RightToLeftOverride - LRE // LeftToRightEmbedding - RLE // RightToLeftEmbedding - PDF // PopDirectionalFormat - LRI // LeftToRightIsolate - RLI // RightToLeftIsolate - FSI // FirstStrongIsolate - PDI // PopDirectionalIsolate - - unknownClass = ^Class(0) -) - -var controlToClass = map[rune]Class{ - 0x202D: LRO, // LeftToRightOverride, - 0x202E: RLO, // RightToLeftOverride, - 0x202A: LRE, // LeftToRightEmbedding, - 0x202B: RLE, // RightToLeftEmbedding, - 0x202C: PDF, // PopDirectionalFormat, - 0x2066: LRI, // LeftToRightIsolate, - 0x2067: RLI, // RightToLeftIsolate, - 0x2068: FSI, // FirstStrongIsolate, - 0x2069: PDI, // PopDirectionalIsolate, -} - -// A trie entry has the following bits: -// 7..5 XOR mask for brackets -// 4 1: Bracket open, 0: Bracket close -// 3..0 Class type - -const ( - openMask = 0x10 - xorMaskShift = 5 -) diff --git a/vendor/golang.org/x/text/unicode/norm/maketables.go b/vendor/golang.org/x/text/unicode/norm/maketables.go deleted file mode 100644 index 30a3aa933..000000000 --- a/vendor/golang.org/x/text/unicode/norm/maketables.go +++ /dev/null @@ -1,986 +0,0 @@ -// Copyright 2011 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -// +build ignore - -// Normalization table generator. -// Data read from the web. -// See forminfo.go for a description of the trie values associated with each rune. - -package main - -import ( - "bytes" - "encoding/binary" - "flag" - "fmt" - "io" - "log" - "sort" - "strconv" - "strings" - - "golang.org/x/text/internal/gen" - "golang.org/x/text/internal/triegen" - "golang.org/x/text/internal/ucd" -) - -func main() { - gen.Init() - loadUnicodeData() - compactCCC() - loadCompositionExclusions() - completeCharFields(FCanonical) - completeCharFields(FCompatibility) - computeNonStarterCounts() - verifyComputed() - printChars() - testDerived() - printTestdata() - makeTables() -} - -var ( - tablelist = flag.String("tables", - "all", - "comma-separated list of which tables to generate; "+ - "can be 'decomp', 'recomp', 'info' and 'all'") - test = flag.Bool("test", - false, - "test existing tables against DerivedNormalizationProps and generate test data for regression testing") - verbose = flag.Bool("verbose", - false, - "write data to stdout as it is parsed") -) - -const MaxChar = 0x10FFFF // anything above this shouldn't exist - -// Quick Check properties of runes allow us to quickly -// determine whether a rune may occur in a normal form. -// For a given normal form, a rune may be guaranteed to occur -// verbatim (QC=Yes), may or may not combine with another -// rune (QC=Maybe), or may not occur (QC=No). -type QCResult int - -const ( - QCUnknown QCResult = iota - QCYes - QCNo - QCMaybe -) - -func (r QCResult) String() string { - switch r { - case QCYes: - return "Yes" - case QCNo: - return "No" - case QCMaybe: - return "Maybe" - } - return "***UNKNOWN***" -} - -const ( - FCanonical = iota // NFC or NFD - FCompatibility // NFKC or NFKD - FNumberOfFormTypes -) - -const ( - MComposed = iota // NFC or NFKC - MDecomposed // NFD or NFKD - MNumberOfModes -) - -// This contains only the properties we're interested in. -type Char struct { - name string - codePoint rune // if zero, this index is not a valid code point. - ccc uint8 // canonical combining class - origCCC uint8 - excludeInComp bool // from CompositionExclusions.txt - compatDecomp bool // it has a compatibility expansion - - nTrailingNonStarters uint8 - nLeadingNonStarters uint8 // must be equal to trailing if non-zero - - forms [FNumberOfFormTypes]FormInfo // For FCanonical and FCompatibility - - state State -} - -var chars = make([]Char, MaxChar+1) -var cccMap = make(map[uint8]uint8) - -func (c Char) String() string { - buf := new(bytes.Buffer) - - fmt.Fprintf(buf, "%U [%s]:\n", c.codePoint, c.name) - fmt.Fprintf(buf, " ccc: %v\n", c.ccc) - fmt.Fprintf(buf, " excludeInComp: %v\n", c.excludeInComp) - fmt.Fprintf(buf, " compatDecomp: %v\n", c.compatDecomp) - fmt.Fprintf(buf, " state: %v\n", c.state) - fmt.Fprintf(buf, " NFC:\n") - fmt.Fprint(buf, c.forms[FCanonical]) - fmt.Fprintf(buf, " NFKC:\n") - fmt.Fprint(buf, c.forms[FCompatibility]) - - return buf.String() -} - -// In UnicodeData.txt, some ranges are marked like this: -// 3400;;Lo;0;L;;;;;N;;;;; -// 4DB5;;Lo;0;L;;;;;N;;;;; -// parseCharacter keeps a state variable indicating the weirdness. -type State int - -const ( - SNormal State = iota // known to be zero for the type - SFirst - SLast - SMissing -) - -var lastChar = rune('\u0000') - -func (c Char) isValid() bool { - return c.codePoint != 0 && c.state != SMissing -} - -type FormInfo struct { - quickCheck [MNumberOfModes]QCResult // index: MComposed or MDecomposed - verified [MNumberOfModes]bool // index: MComposed or MDecomposed - - combinesForward bool // May combine with rune on the right - combinesBackward bool // May combine with rune on the left - isOneWay bool // Never appears in result - inDecomp bool // Some decompositions result in this char. - decomp Decomposition - expandedDecomp Decomposition -} - -func (f FormInfo) String() string { - buf := bytes.NewBuffer(make([]byte, 0)) - - fmt.Fprintf(buf, " quickCheck[C]: %v\n", f.quickCheck[MComposed]) - fmt.Fprintf(buf, " quickCheck[D]: %v\n", f.quickCheck[MDecomposed]) - fmt.Fprintf(buf, " cmbForward: %v\n", f.combinesForward) - fmt.Fprintf(buf, " cmbBackward: %v\n", f.combinesBackward) - fmt.Fprintf(buf, " isOneWay: %v\n", f.isOneWay) - fmt.Fprintf(buf, " inDecomp: %v\n", f.inDecomp) - fmt.Fprintf(buf, " decomposition: %X\n", f.decomp) - fmt.Fprintf(buf, " expandedDecomp: %X\n", f.expandedDecomp) - - return buf.String() -} - -type Decomposition []rune - -func parseDecomposition(s string, skipfirst bool) (a []rune, err error) { - decomp := strings.Split(s, " ") - if len(decomp) > 0 && skipfirst { - decomp = decomp[1:] - } - for _, d := range decomp { - point, err := strconv.ParseUint(d, 16, 64) - if err != nil { - return a, err - } - a = append(a, rune(point)) - } - return a, nil -} - -func loadUnicodeData() { - f := gen.OpenUCDFile("UnicodeData.txt") - defer f.Close() - p := ucd.New(f) - for p.Next() { - r := p.Rune(ucd.CodePoint) - char := &chars[r] - - char.ccc = uint8(p.Uint(ucd.CanonicalCombiningClass)) - decmap := p.String(ucd.DecompMapping) - - exp, err := parseDecomposition(decmap, false) - isCompat := false - if err != nil { - if len(decmap) > 0 { - exp, err = parseDecomposition(decmap, true) - if err != nil { - log.Fatalf(`%U: bad decomp |%v|: "%s"`, r, decmap, err) - } - isCompat = true - } - } - - char.name = p.String(ucd.Name) - char.codePoint = r - char.forms[FCompatibility].decomp = exp - if !isCompat { - char.forms[FCanonical].decomp = exp - } else { - char.compatDecomp = true - } - if len(decmap) > 0 { - char.forms[FCompatibility].decomp = exp - } - } - if err := p.Err(); err != nil { - log.Fatal(err) - } -} - -// compactCCC converts the sparse set of CCC values to a continguous one, -// reducing the number of bits needed from 8 to 6. -func compactCCC() { - m := make(map[uint8]uint8) - for i := range chars { - c := &chars[i] - m[c.ccc] = 0 - } - cccs := []int{} - for v, _ := range m { - cccs = append(cccs, int(v)) - } - sort.Ints(cccs) - for i, c := range cccs { - cccMap[uint8(i)] = uint8(c) - m[uint8(c)] = uint8(i) - } - for i := range chars { - c := &chars[i] - c.origCCC = c.ccc - c.ccc = m[c.ccc] - } - if len(m) >= 1<<6 { - log.Fatalf("too many difference CCC values: %d >= 64", len(m)) - } -} - -// CompositionExclusions.txt has form: -// 0958 # ... -// See https://unicode.org/reports/tr44/ for full explanation -func loadCompositionExclusions() { - f := gen.OpenUCDFile("CompositionExclusions.txt") - defer f.Close() - p := ucd.New(f) - for p.Next() { - c := &chars[p.Rune(0)] - if c.excludeInComp { - log.Fatalf("%U: Duplicate entry in exclusions.", c.codePoint) - } - c.excludeInComp = true - } - if e := p.Err(); e != nil { - log.Fatal(e) - } -} - -// hasCompatDecomp returns true if any of the recursive -// decompositions contains a compatibility expansion. -// In this case, the character may not occur in NFK*. -func hasCompatDecomp(r rune) bool { - c := &chars[r] - if c.compatDecomp { - return true - } - for _, d := range c.forms[FCompatibility].decomp { - if hasCompatDecomp(d) { - return true - } - } - return false -} - -// Hangul related constants. -const ( - HangulBase = 0xAC00 - HangulEnd = 0xD7A4 // hangulBase + Jamo combinations (19 * 21 * 28) - - JamoLBase = 0x1100 - JamoLEnd = 0x1113 - JamoVBase = 0x1161 - JamoVEnd = 0x1176 - JamoTBase = 0x11A8 - JamoTEnd = 0x11C3 - - JamoLVTCount = 19 * 21 * 28 - JamoTCount = 28 -) - -func isHangul(r rune) bool { - return HangulBase <= r && r < HangulEnd -} - -func isHangulWithoutJamoT(r rune) bool { - if !isHangul(r) { - return false - } - r -= HangulBase - return r < JamoLVTCount && r%JamoTCount == 0 -} - -func ccc(r rune) uint8 { - return chars[r].ccc -} - -// Insert a rune in a buffer, ordered by Canonical Combining Class. -func insertOrdered(b Decomposition, r rune) Decomposition { - n := len(b) - b = append(b, 0) - cc := ccc(r) - if cc > 0 { - // Use bubble sort. - for ; n > 0; n-- { - if ccc(b[n-1]) <= cc { - break - } - b[n] = b[n-1] - } - } - b[n] = r - return b -} - -// Recursively decompose. -func decomposeRecursive(form int, r rune, d Decomposition) Decomposition { - dcomp := chars[r].forms[form].decomp - if len(dcomp) == 0 { - return insertOrdered(d, r) - } - for _, c := range dcomp { - d = decomposeRecursive(form, c, d) - } - return d -} - -func completeCharFields(form int) { - // Phase 0: pre-expand decomposition. - for i := range chars { - f := &chars[i].forms[form] - if len(f.decomp) == 0 { - continue - } - exp := make(Decomposition, 0) - for _, c := range f.decomp { - exp = decomposeRecursive(form, c, exp) - } - f.expandedDecomp = exp - } - - // Phase 1: composition exclusion, mark decomposition. - for i := range chars { - c := &chars[i] - f := &c.forms[form] - - // Marks script-specific exclusions and version restricted. - f.isOneWay = c.excludeInComp - - // Singletons - f.isOneWay = f.isOneWay || len(f.decomp) == 1 - - // Non-starter decompositions - if len(f.decomp) > 1 { - chk := c.ccc != 0 || chars[f.decomp[0]].ccc != 0 - f.isOneWay = f.isOneWay || chk - } - - // Runes that decompose into more than two runes. - f.isOneWay = f.isOneWay || len(f.decomp) > 2 - - if form == FCompatibility { - f.isOneWay = f.isOneWay || hasCompatDecomp(c.codePoint) - } - - for _, r := range f.decomp { - chars[r].forms[form].inDecomp = true - } - } - - // Phase 2: forward and backward combining. - for i := range chars { - c := &chars[i] - f := &c.forms[form] - - if !f.isOneWay && len(f.decomp) == 2 { - f0 := &chars[f.decomp[0]].forms[form] - f1 := &chars[f.decomp[1]].forms[form] - if !f0.isOneWay { - f0.combinesForward = true - } - if !f1.isOneWay { - f1.combinesBackward = true - } - } - if isHangulWithoutJamoT(rune(i)) { - f.combinesForward = true - } - } - - // Phase 3: quick check values. - for i := range chars { - c := &chars[i] - f := &c.forms[form] - - switch { - case len(f.decomp) > 0: - f.quickCheck[MDecomposed] = QCNo - case isHangul(rune(i)): - f.quickCheck[MDecomposed] = QCNo - default: - f.quickCheck[MDecomposed] = QCYes - } - switch { - case f.isOneWay: - f.quickCheck[MComposed] = QCNo - case (i & 0xffff00) == JamoLBase: - f.quickCheck[MComposed] = QCYes - if JamoLBase <= i && i < JamoLEnd { - f.combinesForward = true - } - if JamoVBase <= i && i < JamoVEnd { - f.quickCheck[MComposed] = QCMaybe - f.combinesBackward = true - f.combinesForward = true - } - if JamoTBase <= i && i < JamoTEnd { - f.quickCheck[MComposed] = QCMaybe - f.combinesBackward = true - } - case !f.combinesBackward: - f.quickCheck[MComposed] = QCYes - default: - f.quickCheck[MComposed] = QCMaybe - } - } -} - -func computeNonStarterCounts() { - // Phase 4: leading and trailing non-starter count - for i := range chars { - c := &chars[i] - - runes := []rune{rune(i)} - // We always use FCompatibility so that the CGJ insertion points do not - // change for repeated normalizations with different forms. - if exp := c.forms[FCompatibility].expandedDecomp; len(exp) > 0 { - runes = exp - } - // We consider runes that combine backwards to be non-starters for the - // purpose of Stream-Safe Text Processing. - for _, r := range runes { - if cr := &chars[r]; cr.ccc == 0 && !cr.forms[FCompatibility].combinesBackward { - break - } - c.nLeadingNonStarters++ - } - for i := len(runes) - 1; i >= 0; i-- { - if cr := &chars[runes[i]]; cr.ccc == 0 && !cr.forms[FCompatibility].combinesBackward { - break - } - c.nTrailingNonStarters++ - } - if c.nTrailingNonStarters > 3 { - log.Fatalf("%U: Decomposition with more than 3 (%d) trailing modifiers (%U)", i, c.nTrailingNonStarters, runes) - } - - if isHangul(rune(i)) { - c.nTrailingNonStarters = 2 - if isHangulWithoutJamoT(rune(i)) { - c.nTrailingNonStarters = 1 - } - } - - if l, t := c.nLeadingNonStarters, c.nTrailingNonStarters; l > 0 && l != t { - log.Fatalf("%U: number of leading and trailing non-starters should be equal (%d vs %d)", i, l, t) - } - if t := c.nTrailingNonStarters; t > 3 { - log.Fatalf("%U: number of trailing non-starters is %d > 3", t) - } - } -} - -func printBytes(w io.Writer, b []byte, name string) { - fmt.Fprintf(w, "// %s: %d bytes\n", name, len(b)) - fmt.Fprintf(w, "var %s = [...]byte {", name) - for i, c := range b { - switch { - case i%64 == 0: - fmt.Fprintf(w, "\n// Bytes %x - %x\n", i, i+63) - case i%8 == 0: - fmt.Fprintf(w, "\n") - } - fmt.Fprintf(w, "0x%.2X, ", c) - } - fmt.Fprint(w, "\n}\n\n") -} - -// See forminfo.go for format. -func makeEntry(f *FormInfo, c *Char) uint16 { - e := uint16(0) - if r := c.codePoint; HangulBase <= r && r < HangulEnd { - e |= 0x40 - } - if f.combinesForward { - e |= 0x20 - } - if f.quickCheck[MDecomposed] == QCNo { - e |= 0x4 - } - switch f.quickCheck[MComposed] { - case QCYes: - case QCNo: - e |= 0x10 - case QCMaybe: - e |= 0x18 - default: - log.Fatalf("Illegal quickcheck value %v.", f.quickCheck[MComposed]) - } - e |= uint16(c.nTrailingNonStarters) - return e -} - -// decompSet keeps track of unique decompositions, grouped by whether -// the decomposition is followed by a trailing and/or leading CCC. -type decompSet [7]map[string]bool - -const ( - normalDecomp = iota - firstMulti - firstCCC - endMulti - firstLeadingCCC - firstCCCZeroExcept - firstStarterWithNLead - lastDecomp -) - -var cname = []string{"firstMulti", "firstCCC", "endMulti", "firstLeadingCCC", "firstCCCZeroExcept", "firstStarterWithNLead", "lastDecomp"} - -func makeDecompSet() decompSet { - m := decompSet{} - for i := range m { - m[i] = make(map[string]bool) - } - return m -} -func (m *decompSet) insert(key int, s string) { - m[key][s] = true -} - -func printCharInfoTables(w io.Writer) int { - mkstr := func(r rune, f *FormInfo) (int, string) { - d := f.expandedDecomp - s := string([]rune(d)) - if max := 1 << 6; len(s) >= max { - const msg = "%U: too many bytes in decomposition: %d >= %d" - log.Fatalf(msg, r, len(s), max) - } - head := uint8(len(s)) - if f.quickCheck[MComposed] != QCYes { - head |= 0x40 - } - if f.combinesForward { - head |= 0x80 - } - s = string([]byte{head}) + s - - lccc := ccc(d[0]) - tccc := ccc(d[len(d)-1]) - cc := ccc(r) - if cc != 0 && lccc == 0 && tccc == 0 { - log.Fatalf("%U: trailing and leading ccc are 0 for non-zero ccc %d", r, cc) - } - if tccc < lccc && lccc != 0 { - const msg = "%U: lccc (%d) must be <= tcc (%d)" - log.Fatalf(msg, r, lccc, tccc) - } - index := normalDecomp - nTrail := chars[r].nTrailingNonStarters - nLead := chars[r].nLeadingNonStarters - if tccc > 0 || lccc > 0 || nTrail > 0 { - tccc <<= 2 - tccc |= nTrail - s += string([]byte{tccc}) - index = endMulti - for _, r := range d[1:] { - if ccc(r) == 0 { - index = firstCCC - } - } - if lccc > 0 || nLead > 0 { - s += string([]byte{lccc}) - if index == firstCCC { - log.Fatalf("%U: multi-segment decomposition not supported for decompositions with leading CCC != 0", r) - } - index = firstLeadingCCC - } - if cc != lccc { - if cc != 0 { - log.Fatalf("%U: for lccc != ccc, expected ccc to be 0; was %d", r, cc) - } - index = firstCCCZeroExcept - } - } else if len(d) > 1 { - index = firstMulti - } - return index, s - } - - decompSet := makeDecompSet() - const nLeadStr = "\x00\x01" // 0-byte length and tccc with nTrail. - decompSet.insert(firstStarterWithNLead, nLeadStr) - - // Store the uniqued decompositions in a byte buffer, - // preceded by their byte length. - for _, c := range chars { - for _, f := range c.forms { - if len(f.expandedDecomp) == 0 { - continue - } - if f.combinesBackward { - log.Fatalf("%U: combinesBackward and decompose", c.codePoint) - } - index, s := mkstr(c.codePoint, &f) - decompSet.insert(index, s) - } - } - - decompositions := bytes.NewBuffer(make([]byte, 0, 10000)) - size := 0 - positionMap := make(map[string]uint16) - decompositions.WriteString("\000") - fmt.Fprintln(w, "const (") - for i, m := range decompSet { - sa := []string{} - for s := range m { - sa = append(sa, s) - } - sort.Strings(sa) - for _, s := range sa { - p := decompositions.Len() - decompositions.WriteString(s) - positionMap[s] = uint16(p) - } - if cname[i] != "" { - fmt.Fprintf(w, "%s = 0x%X\n", cname[i], decompositions.Len()) - } - } - fmt.Fprintln(w, "maxDecomp = 0x8000") - fmt.Fprintln(w, ")") - b := decompositions.Bytes() - printBytes(w, b, "decomps") - size += len(b) - - varnames := []string{"nfc", "nfkc"} - for i := 0; i < FNumberOfFormTypes; i++ { - trie := triegen.NewTrie(varnames[i]) - - for r, c := range chars { - f := c.forms[i] - d := f.expandedDecomp - if len(d) != 0 { - _, key := mkstr(c.codePoint, &f) - trie.Insert(rune(r), uint64(positionMap[key])) - if c.ccc != ccc(d[0]) { - // We assume the lead ccc of a decomposition !=0 in this case. - if ccc(d[0]) == 0 { - log.Fatalf("Expected leading CCC to be non-zero; ccc is %d", c.ccc) - } - } - } else if c.nLeadingNonStarters > 0 && len(f.expandedDecomp) == 0 && c.ccc == 0 && !f.combinesBackward { - // Handle cases where it can't be detected that the nLead should be equal - // to nTrail. - trie.Insert(c.codePoint, uint64(positionMap[nLeadStr])) - } else if v := makeEntry(&f, &c)<<8 | uint16(c.ccc); v != 0 { - trie.Insert(c.codePoint, uint64(0x8000|v)) - } - } - sz, err := trie.Gen(w, triegen.Compact(&normCompacter{name: varnames[i]})) - if err != nil { - log.Fatal(err) - } - size += sz - } - return size -} - -func contains(sa []string, s string) bool { - for _, a := range sa { - if a == s { - return true - } - } - return false -} - -func makeTables() { - w := &bytes.Buffer{} - - size := 0 - if *tablelist == "" { - return - } - list := strings.Split(*tablelist, ",") - if *tablelist == "all" { - list = []string{"recomp", "info"} - } - - // Compute maximum decomposition size. - max := 0 - for _, c := range chars { - if n := len(string(c.forms[FCompatibility].expandedDecomp)); n > max { - max = n - } - } - fmt.Fprintln(w, `import "sync"`) - fmt.Fprintln(w) - - fmt.Fprintln(w, "const (") - fmt.Fprintln(w, "\t// Version is the Unicode edition from which the tables are derived.") - fmt.Fprintf(w, "\tVersion = %q\n", gen.UnicodeVersion()) - fmt.Fprintln(w) - fmt.Fprintln(w, "\t// MaxTransformChunkSize indicates the maximum number of bytes that Transform") - fmt.Fprintln(w, "\t// may need to write atomically for any Form. Making a destination buffer at") - fmt.Fprintln(w, "\t// least this size ensures that Transform can always make progress and that") - fmt.Fprintln(w, "\t// the user does not need to grow the buffer on an ErrShortDst.") - fmt.Fprintf(w, "\tMaxTransformChunkSize = %d+maxNonStarters*4\n", len(string(0x034F))+max) - fmt.Fprintln(w, ")\n") - - // Print the CCC remap table. - size += len(cccMap) - fmt.Fprintf(w, "var ccc = [%d]uint8{", len(cccMap)) - for i := 0; i < len(cccMap); i++ { - if i%8 == 0 { - fmt.Fprintln(w) - } - fmt.Fprintf(w, "%3d, ", cccMap[uint8(i)]) - } - fmt.Fprintln(w, "\n}\n") - - if contains(list, "info") { - size += printCharInfoTables(w) - } - - if contains(list, "recomp") { - // Note that we use 32 bit keys, instead of 64 bit. - // This clips the bits of three entries, but we know - // this won't cause a collision. The compiler will catch - // any changes made to UnicodeData.txt that introduces - // a collision. - // Note that the recomposition map for NFC and NFKC - // are identical. - - // Recomposition map - nrentries := 0 - for _, c := range chars { - f := c.forms[FCanonical] - if !f.isOneWay && len(f.decomp) > 0 { - nrentries++ - } - } - sz := nrentries * 8 - size += sz - fmt.Fprintf(w, "// recompMap: %d bytes (entries only)\n", sz) - fmt.Fprintln(w, "var recompMap map[uint32]rune") - fmt.Fprintln(w, "var recompMapOnce sync.Once\n") - fmt.Fprintln(w, `const recompMapPacked = "" +`) - var buf [8]byte - for i, c := range chars { - f := c.forms[FCanonical] - d := f.decomp - if !f.isOneWay && len(d) > 0 { - key := uint32(uint16(d[0]))<<16 + uint32(uint16(d[1])) - binary.BigEndian.PutUint32(buf[:4], key) - binary.BigEndian.PutUint32(buf[4:], uint32(i)) - fmt.Fprintf(w, "\t\t%q + // 0x%.8X: 0x%.8X\n", string(buf[:]), key, uint32(i)) - } - } - // hack so we don't have to special case the trailing plus sign - fmt.Fprintf(w, ` ""`) - fmt.Fprintln(w) - } - - fmt.Fprintf(w, "// Total size of tables: %dKB (%d bytes)\n", (size+512)/1024, size) - gen.WriteVersionedGoFile("tables.go", "norm", w.Bytes()) -} - -func printChars() { - if *verbose { - for _, c := range chars { - if !c.isValid() || c.state == SMissing { - continue - } - fmt.Println(c) - } - } -} - -// verifyComputed does various consistency tests. -func verifyComputed() { - for i, c := range chars { - for _, f := range c.forms { - isNo := (f.quickCheck[MDecomposed] == QCNo) - if (len(f.decomp) > 0) != isNo && !isHangul(rune(i)) { - log.Fatalf("%U: NF*D QC must be No if rune decomposes", i) - } - - isMaybe := f.quickCheck[MComposed] == QCMaybe - if f.combinesBackward != isMaybe { - log.Fatalf("%U: NF*C QC must be Maybe if combinesBackward", i) - } - if len(f.decomp) > 0 && f.combinesForward && isMaybe { - log.Fatalf("%U: NF*C QC must be Yes or No if combinesForward and decomposes", i) - } - - if len(f.expandedDecomp) != 0 { - continue - } - if a, b := c.nLeadingNonStarters > 0, (c.ccc > 0 || f.combinesBackward); a != b { - // We accept these runes to be treated differently (it only affects - // segment breaking in iteration, most likely on improper use), but - // reconsider if more characters are added. - // U+FF9E HALFWIDTH KATAKANA VOICED SOUND MARK;Lm;0;L; 3099;;;;N;;;;; - // U+FF9F HALFWIDTH KATAKANA SEMI-VOICED SOUND MARK;Lm;0;L; 309A;;;;N;;;;; - // U+3133 HANGUL LETTER KIYEOK-SIOS;Lo;0;L; 11AA;;;;N;HANGUL LETTER GIYEOG SIOS;;;; - // U+318E HANGUL LETTER ARAEAE;Lo;0;L; 11A1;;;;N;HANGUL LETTER ALAE AE;;;; - // U+FFA3 HALFWIDTH HANGUL LETTER KIYEOK-SIOS;Lo;0;L; 3133;;;;N;HALFWIDTH HANGUL LETTER GIYEOG SIOS;;;; - // U+FFDC HALFWIDTH HANGUL LETTER I;Lo;0;L; 3163;;;;N;;;;; - if i != 0xFF9E && i != 0xFF9F && !(0x3133 <= i && i <= 0x318E) && !(0xFFA3 <= i && i <= 0xFFDC) { - log.Fatalf("%U: nLead was %v; want %v", i, a, b) - } - } - } - nfc := c.forms[FCanonical] - nfkc := c.forms[FCompatibility] - if nfc.combinesBackward != nfkc.combinesBackward { - log.Fatalf("%U: Cannot combine combinesBackward\n", c.codePoint) - } - } -} - -// Use values in DerivedNormalizationProps.txt to compare against the -// values we computed. -// DerivedNormalizationProps.txt has form: -// 00C0..00C5 ; NFD_QC; N # ... -// 0374 ; NFD_QC; N # ... -// See https://unicode.org/reports/tr44/ for full explanation -func testDerived() { - f := gen.OpenUCDFile("DerivedNormalizationProps.txt") - defer f.Close() - p := ucd.New(f) - for p.Next() { - r := p.Rune(0) - c := &chars[r] - - var ftype, mode int - qt := p.String(1) - switch qt { - case "NFC_QC": - ftype, mode = FCanonical, MComposed - case "NFD_QC": - ftype, mode = FCanonical, MDecomposed - case "NFKC_QC": - ftype, mode = FCompatibility, MComposed - case "NFKD_QC": - ftype, mode = FCompatibility, MDecomposed - default: - continue - } - var qr QCResult - switch p.String(2) { - case "Y": - qr = QCYes - case "N": - qr = QCNo - case "M": - qr = QCMaybe - default: - log.Fatalf(`Unexpected quick check value "%s"`, p.String(2)) - } - if got := c.forms[ftype].quickCheck[mode]; got != qr { - log.Printf("%U: FAILED %s (was %v need %v)\n", r, qt, got, qr) - } - c.forms[ftype].verified[mode] = true - } - if err := p.Err(); err != nil { - log.Fatal(err) - } - // Any unspecified value must be QCYes. Verify this. - for i, c := range chars { - for j, fd := range c.forms { - for k, qr := range fd.quickCheck { - if !fd.verified[k] && qr != QCYes { - m := "%U: FAIL F:%d M:%d (was %v need Yes) %s\n" - log.Printf(m, i, j, k, qr, c.name) - } - } - } - } -} - -var testHeader = `const ( - Yes = iota - No - Maybe -) - -type formData struct { - qc uint8 - combinesForward bool - decomposition string -} - -type runeData struct { - r rune - ccc uint8 - nLead uint8 - nTrail uint8 - f [2]formData // 0: canonical; 1: compatibility -} - -func f(qc uint8, cf bool, dec string) [2]formData { - return [2]formData{{qc, cf, dec}, {qc, cf, dec}} -} - -func g(qc, qck uint8, cf, cfk bool, d, dk string) [2]formData { - return [2]formData{{qc, cf, d}, {qck, cfk, dk}} -} - -var testData = []runeData{ -` - -func printTestdata() { - type lastInfo struct { - ccc uint8 - nLead uint8 - nTrail uint8 - f string - } - - last := lastInfo{} - w := &bytes.Buffer{} - fmt.Fprintf(w, testHeader) - for r, c := range chars { - f := c.forms[FCanonical] - qc, cf, d := f.quickCheck[MComposed], f.combinesForward, string(f.expandedDecomp) - f = c.forms[FCompatibility] - qck, cfk, dk := f.quickCheck[MComposed], f.combinesForward, string(f.expandedDecomp) - s := "" - if d == dk && qc == qck && cf == cfk { - s = fmt.Sprintf("f(%s, %v, %q)", qc, cf, d) - } else { - s = fmt.Sprintf("g(%s, %s, %v, %v, %q, %q)", qc, qck, cf, cfk, d, dk) - } - current := lastInfo{c.ccc, c.nLeadingNonStarters, c.nTrailingNonStarters, s} - if last != current { - fmt.Fprintf(w, "\t{0x%x, %d, %d, %d, %s},\n", r, c.origCCC, c.nLeadingNonStarters, c.nTrailingNonStarters, s) - last = current - } - } - fmt.Fprintln(w, "}") - gen.WriteVersionedGoFile("data_test.go", "norm", w.Bytes()) -} diff --git a/vendor/golang.org/x/text/unicode/norm/normalize.go b/vendor/golang.org/x/text/unicode/norm/normalize.go index af522aa7c..95efcf26e 100644 --- a/vendor/golang.org/x/text/unicode/norm/normalize.go +++ b/vendor/golang.org/x/text/unicode/norm/normalize.go @@ -7,7 +7,7 @@ //go:generate go test -tags test // Package norm contains types and functions for normalizing Unicode strings. -package norm +package norm // import "golang.org/x/text/unicode/norm" import ( "unicode/utf8" diff --git a/vendor/golang.org/x/text/unicode/norm/triegen.go b/vendor/golang.org/x/text/unicode/norm/triegen.go deleted file mode 100644 index 45d711900..000000000 --- a/vendor/golang.org/x/text/unicode/norm/triegen.go +++ /dev/null @@ -1,117 +0,0 @@ -// Copyright 2011 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -// +build ignore - -// Trie table generator. -// Used by make*tables tools to generate a go file with trie data structures -// for mapping UTF-8 to a 16-bit value. All but the last byte in a UTF-8 byte -// sequence are used to lookup offsets in the index table to be used for the -// next byte. The last byte is used to index into a table with 16-bit values. - -package main - -import ( - "fmt" - "io" -) - -const maxSparseEntries = 16 - -type normCompacter struct { - sparseBlocks [][]uint64 - sparseOffset []uint16 - sparseCount int - name string -} - -func mostFrequentStride(a []uint64) int { - counts := make(map[int]int) - var v int - for _, x := range a { - if stride := int(x) - v; v != 0 && stride >= 0 { - counts[stride]++ - } - v = int(x) - } - var maxs, maxc int - for stride, cnt := range counts { - if cnt > maxc || (cnt == maxc && stride < maxs) { - maxs, maxc = stride, cnt - } - } - return maxs -} - -func countSparseEntries(a []uint64) int { - stride := mostFrequentStride(a) - var v, count int - for _, tv := range a { - if int(tv)-v != stride { - if tv != 0 { - count++ - } - } - v = int(tv) - } - return count -} - -func (c *normCompacter) Size(v []uint64) (sz int, ok bool) { - if n := countSparseEntries(v); n <= maxSparseEntries { - return (n+1)*4 + 2, true - } - return 0, false -} - -func (c *normCompacter) Store(v []uint64) uint32 { - h := uint32(len(c.sparseOffset)) - c.sparseBlocks = append(c.sparseBlocks, v) - c.sparseOffset = append(c.sparseOffset, uint16(c.sparseCount)) - c.sparseCount += countSparseEntries(v) + 1 - return h -} - -func (c *normCompacter) Handler() string { - return c.name + "Sparse.lookup" -} - -func (c *normCompacter) Print(w io.Writer) (retErr error) { - p := func(f string, x ...interface{}) { - if _, err := fmt.Fprintf(w, f, x...); retErr == nil && err != nil { - retErr = err - } - } - - ls := len(c.sparseBlocks) - p("// %sSparseOffset: %d entries, %d bytes\n", c.name, ls, ls*2) - p("var %sSparseOffset = %#v\n\n", c.name, c.sparseOffset) - - ns := c.sparseCount - p("// %sSparseValues: %d entries, %d bytes\n", c.name, ns, ns*4) - p("var %sSparseValues = [%d]valueRange {", c.name, ns) - for i, b := range c.sparseBlocks { - p("\n// Block %#x, offset %#x", i, c.sparseOffset[i]) - var v int - stride := mostFrequentStride(b) - n := countSparseEntries(b) - p("\n{value:%#04x,lo:%#02x},", stride, uint8(n)) - for i, nv := range b { - if int(nv)-v != stride { - if v != 0 { - p(",hi:%#02x},", 0x80+i-1) - } - if nv != 0 { - p("\n{value:%#04x,lo:%#02x", nv, 0x80+i) - } - } - v = int(nv) - } - if v != 0 { - p(",hi:%#02x},", 0x80+len(b)-1) - } - } - p("\n}\n\n") - return -} diff --git a/vendor/golang.org/x/tools/cmd/goimports/doc.go b/vendor/golang.org/x/tools/cmd/goimports/doc.go index 7809b163b..7033e4d4c 100644 --- a/vendor/golang.org/x/tools/cmd/goimports/doc.go +++ b/vendor/golang.org/x/tools/cmd/goimports/doc.go @@ -40,4 +40,4 @@ File bugs or feature requests at: Happy hacking! */ -package main +package main // import "golang.org/x/tools/cmd/goimports" diff --git a/vendor/golang.org/x/tools/go/analysis/doc.go b/vendor/golang.org/x/tools/go/analysis/doc.go index 1b7b7ed5a..8fa4a8531 100644 --- a/vendor/golang.org/x/tools/go/analysis/doc.go +++ b/vendor/golang.org/x/tools/go/analysis/doc.go @@ -70,39 +70,6 @@ A driver may use the name, flags, and documentation to provide on-line help that describes the analyses it performs. The doc comment contains a brief one-line summary, optionally followed by paragraphs of explanation. -The vet command, shown below, is an example of a driver that runs -multiple analyzers. It is based on the multichecker package -(see the "Standalone commands" section for details). - - $ go build golang.org/x/tools/go/analysis/cmd/vet - $ ./vet help - vet is a tool for static analysis of Go programs. - - Usage: vet [-flag] [package] - - Registered analyzers: - - asmdecl report mismatches between assembly files and Go declarations - assign check for useless assignments - atomic check for common mistakes using the sync/atomic package - ... - unusedresult check for unused results of calls to some functions - - $ ./vet help unusedresult - unusedresult: check for unused results of calls to some functions - - Analyzer flags: - - -unusedresult.funcs value - comma-separated list of functions whose results must be used (default Error,String) - -unusedresult.stringmethods value - comma-separated list of names of methods of type func() string whose results must be used - - Some functions like fmt.Errorf return a result and have no side effects, - so it is always a mistake to discard the result. This analyzer reports - calls to certain functions in which the result of the call is ignored. - - The set of functions may be controlled using flags. The Analyzer type has more fields besides those shown above: diff --git a/vendor/golang.org/x/tools/go/ast/astutil/imports.go b/vendor/golang.org/x/tools/go/ast/astutil/imports.go index 46f9ad184..2087ceec9 100644 --- a/vendor/golang.org/x/tools/go/ast/astutil/imports.go +++ b/vendor/golang.org/x/tools/go/ast/astutil/imports.go @@ -3,7 +3,7 @@ // license that can be found in the LICENSE file. // Package astutil contains common utilities for working with the Go AST. -package astutil +package astutil // import "golang.org/x/tools/go/ast/astutil" import ( "fmt" @@ -275,9 +275,10 @@ func DeleteNamedImport(fset *token.FileSet, f *ast.File, name, path string) (del // We deleted an entry but now there may be // a blank line-sized hole where the import was. - if line-lastLine > 1 { + if line-lastLine > 1 || !gen.Rparen.IsValid() { // There was a blank line immediately preceding the deleted import, - // so there's no need to close the hole. + // so there's no need to close the hole. The right parenthesis is + // invalid after AddImport to an import statement without parenthesis. // Do nothing. } else if line != fset.File(gen.Rparen).LineCount() { // There was no blank line. Close the hole. diff --git a/vendor/golang.org/x/tools/go/ast/inspector/inspector.go b/vendor/golang.org/x/tools/go/ast/inspector/inspector.go index ddbdd3f08..3084508b5 100644 --- a/vendor/golang.org/x/tools/go/ast/inspector/inspector.go +++ b/vendor/golang.org/x/tools/go/ast/inspector/inspector.go @@ -90,7 +90,7 @@ func (in *Inspector) Preorder(types []ast.Node, f func(ast.Node)) { // The types argument, if non-empty, enables type-based filtering of // events. The function f if is called only for nodes whose type // matches an element of the types slice. -func (in *Inspector) Nodes(types []ast.Node, f func(n ast.Node, push bool) (prune bool)) { +func (in *Inspector) Nodes(types []ast.Node, f func(n ast.Node, push bool) (proceed bool)) { mask := maskOf(types) for i := 0; i < len(in.events); { ev := in.events[i] @@ -114,7 +114,7 @@ func (in *Inspector) Nodes(types []ast.Node, f func(n ast.Node, push bool) (prun // supplies each call to f an additional argument, the current // traversal stack. The stack's first element is the outermost node, // an *ast.File; its last is the innermost, n. -func (in *Inspector) WithStack(types []ast.Node, f func(n ast.Node, push bool, stack []ast.Node) (prune bool)) { +func (in *Inspector) WithStack(types []ast.Node, f func(n ast.Node, push bool, stack []ast.Node) (proceed bool)) { mask := maskOf(types) var stack []ast.Node for i := 0; i < len(in.events); { diff --git a/vendor/golang.org/x/tools/go/buildutil/allpackages.go b/vendor/golang.org/x/tools/go/buildutil/allpackages.go index 3d29cf3b8..c0cb03e7b 100644 --- a/vendor/golang.org/x/tools/go/buildutil/allpackages.go +++ b/vendor/golang.org/x/tools/go/buildutil/allpackages.go @@ -7,7 +7,7 @@ // // All I/O is done via the build.Context file system interface, which must // be concurrency-safe. -package buildutil +package buildutil // import "golang.org/x/tools/go/buildutil" import ( "go/build" diff --git a/vendor/golang.org/x/tools/go/gcexportdata/gcexportdata.go b/vendor/golang.org/x/tools/go/gcexportdata/gcexportdata.go index 3aa0c9317..f8363d8fa 100644 --- a/vendor/golang.org/x/tools/go/gcexportdata/gcexportdata.go +++ b/vendor/golang.org/x/tools/go/gcexportdata/gcexportdata.go @@ -18,7 +18,7 @@ // Go 1.8 export data files, so they will work before and after the // Go update. (See discussion at https://golang.org/issue/15651.) // -package gcexportdata +package gcexportdata // import "golang.org/x/tools/go/gcexportdata" import ( "bufio" diff --git a/vendor/golang.org/x/tools/go/gcexportdata/main.go b/vendor/golang.org/x/tools/go/gcexportdata/main.go deleted file mode 100644 index 2713dce64..000000000 --- a/vendor/golang.org/x/tools/go/gcexportdata/main.go +++ /dev/null @@ -1,99 +0,0 @@ -// Copyright 2017 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -// +build ignore - -// The gcexportdata command is a diagnostic tool that displays the -// contents of gc export data files. -package main - -import ( - "flag" - "fmt" - "go/token" - "go/types" - "log" - "os" - - "golang.org/x/tools/go/gcexportdata" - "golang.org/x/tools/go/types/typeutil" -) - -var packageFlag = flag.String("package", "", "alternative package to print") - -func main() { - log.SetPrefix("gcexportdata: ") - log.SetFlags(0) - flag.Usage = func() { - fmt.Fprintln(os.Stderr, "usage: gcexportdata [-package path] file.a") - } - flag.Parse() - if flag.NArg() != 1 { - flag.Usage() - os.Exit(2) - } - filename := flag.Args()[0] - - f, err := os.Open(filename) - if err != nil { - log.Fatal(err) - } - - r, err := gcexportdata.NewReader(f) - if err != nil { - log.Fatalf("%s: %s", filename, err) - } - - // Decode the package. - const primary = "" - imports := make(map[string]*types.Package) - fset := token.NewFileSet() - pkg, err := gcexportdata.Read(r, fset, imports, primary) - if err != nil { - log.Fatalf("%s: %s", filename, err) - } - - // Optionally select an indirectly mentioned package. - if *packageFlag != "" { - pkg = imports[*packageFlag] - if pkg == nil { - fmt.Fprintf(os.Stderr, "export data file %s does not mention %s; has:\n", - filename, *packageFlag) - for p := range imports { - if p != primary { - fmt.Fprintf(os.Stderr, "\t%s\n", p) - } - } - os.Exit(1) - } - } - - // Print all package-level declarations, including non-exported ones. - fmt.Printf("package %s\n", pkg.Name()) - for _, imp := range pkg.Imports() { - fmt.Printf("import %q\n", imp.Path()) - } - qual := func(p *types.Package) string { - if pkg == p { - return "" - } - return p.Name() - } - scope := pkg.Scope() - for _, name := range scope.Names() { - obj := scope.Lookup(name) - fmt.Printf("%s: %s\n", - fset.Position(obj.Pos()), - types.ObjectString(obj, qual)) - - // For types, print each method. - if _, ok := obj.(*types.TypeName); ok { - for _, method := range typeutil.IntuitiveMethodSet(obj.Type(), nil) { - fmt.Printf("%s: %s\n", - fset.Position(method.Obj().Pos()), - types.SelectionString(method, qual)) - } - } - } -} diff --git a/vendor/golang.org/x/tools/go/internal/cgo/cgo.go b/vendor/golang.org/x/tools/go/internal/cgo/cgo.go deleted file mode 100644 index 0f652ea6f..000000000 --- a/vendor/golang.org/x/tools/go/internal/cgo/cgo.go +++ /dev/null @@ -1,220 +0,0 @@ -// Copyright 2013 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package cgo - -// This file handles cgo preprocessing of files containing `import "C"`. -// -// DESIGN -// -// The approach taken is to run the cgo processor on the package's -// CgoFiles and parse the output, faking the filenames of the -// resulting ASTs so that the synthetic file containing the C types is -// called "C" (e.g. "~/go/src/net/C") and the preprocessed files -// have their original names (e.g. "~/go/src/net/cgo_unix.go"), -// not the names of the actual temporary files. -// -// The advantage of this approach is its fidelity to 'go build'. The -// downside is that the token.Position.Offset for each AST node is -// incorrect, being an offset within the temporary file. Line numbers -// should still be correct because of the //line comments. -// -// The logic of this file is mostly plundered from the 'go build' -// tool, which also invokes the cgo preprocessor. -// -// -// REJECTED ALTERNATIVE -// -// An alternative approach that we explored is to extend go/types' -// Importer mechanism to provide the identity of the importing package -// so that each time `import "C"` appears it resolves to a different -// synthetic package containing just the objects needed in that case. -// The loader would invoke cgo but parse only the cgo_types.go file -// defining the package-level objects, discarding the other files -// resulting from preprocessing. -// -// The benefit of this approach would have been that source-level -// syntax information would correspond exactly to the original cgo -// file, with no preprocessing involved, making source tools like -// godoc, guru, and eg happy. However, the approach was rejected -// due to the additional complexity it would impose on go/types. (It -// made for a beautiful demo, though.) -// -// cgo files, despite their *.go extension, are not legal Go source -// files per the specification since they may refer to unexported -// members of package "C" such as C.int. Also, a function such as -// C.getpwent has in effect two types, one matching its C type and one -// which additionally returns (errno C.int). The cgo preprocessor -// uses name mangling to distinguish these two functions in the -// processed code, but go/types would need to duplicate this logic in -// its handling of function calls, analogous to the treatment of map -// lookups in which y=m[k] and y,ok=m[k] are both legal. - -import ( - "fmt" - "go/ast" - "go/build" - "go/parser" - "go/token" - "io/ioutil" - "log" - "os" - "os/exec" - "path/filepath" - "regexp" - "strings" -) - -// ProcessFiles invokes the cgo preprocessor on bp.CgoFiles, parses -// the output and returns the resulting ASTs. -// -func ProcessFiles(bp *build.Package, fset *token.FileSet, DisplayPath func(path string) string, mode parser.Mode) ([]*ast.File, error) { - tmpdir, err := ioutil.TempDir("", strings.Replace(bp.ImportPath, "/", "_", -1)+"_C") - if err != nil { - return nil, err - } - defer os.RemoveAll(tmpdir) - - pkgdir := bp.Dir - if DisplayPath != nil { - pkgdir = DisplayPath(pkgdir) - } - - cgoFiles, cgoDisplayFiles, err := Run(bp, pkgdir, tmpdir, false) - if err != nil { - return nil, err - } - var files []*ast.File - for i := range cgoFiles { - rd, err := os.Open(cgoFiles[i]) - if err != nil { - return nil, err - } - display := filepath.Join(bp.Dir, cgoDisplayFiles[i]) - f, err := parser.ParseFile(fset, display, rd, mode) - rd.Close() - if err != nil { - return nil, err - } - files = append(files, f) - } - return files, nil -} - -var cgoRe = regexp.MustCompile(`[/\\:]`) - -// Run invokes the cgo preprocessor on bp.CgoFiles and returns two -// lists of files: the resulting processed files (in temporary -// directory tmpdir) and the corresponding names of the unprocessed files. -// -// Run is adapted from (*builder).cgo in -// $GOROOT/src/cmd/go/build.go, but these features are unsupported: -// Objective C, CGOPKGPATH, CGO_FLAGS. -// -// If useabs is set to true, absolute paths of the bp.CgoFiles will be passed in -// to the cgo preprocessor. This in turn will set the // line comments -// referring to those files to use absolute paths. This is needed for -// go/packages using the legacy go list support so it is able to find -// the original files. -func Run(bp *build.Package, pkgdir, tmpdir string, useabs bool) (files, displayFiles []string, err error) { - cgoCPPFLAGS, _, _, _ := cflags(bp, true) - _, cgoexeCFLAGS, _, _ := cflags(bp, false) - - if len(bp.CgoPkgConfig) > 0 { - pcCFLAGS, err := pkgConfigFlags(bp) - if err != nil { - return nil, nil, err - } - cgoCPPFLAGS = append(cgoCPPFLAGS, pcCFLAGS...) - } - - // Allows including _cgo_export.h from .[ch] files in the package. - cgoCPPFLAGS = append(cgoCPPFLAGS, "-I", tmpdir) - - // _cgo_gotypes.go (displayed "C") contains the type definitions. - files = append(files, filepath.Join(tmpdir, "_cgo_gotypes.go")) - displayFiles = append(displayFiles, "C") - for _, fn := range bp.CgoFiles { - // "foo.cgo1.go" (displayed "foo.go") is the processed Go source. - f := cgoRe.ReplaceAllString(fn[:len(fn)-len("go")], "_") - files = append(files, filepath.Join(tmpdir, f+"cgo1.go")) - displayFiles = append(displayFiles, fn) - } - - var cgoflags []string - if bp.Goroot && bp.ImportPath == "runtime/cgo" { - cgoflags = append(cgoflags, "-import_runtime_cgo=false") - } - if bp.Goroot && bp.ImportPath == "runtime/race" || bp.ImportPath == "runtime/cgo" { - cgoflags = append(cgoflags, "-import_syscall=false") - } - - var cgoFiles []string = bp.CgoFiles - if useabs { - cgoFiles = make([]string, len(bp.CgoFiles)) - for i := range cgoFiles { - cgoFiles[i] = filepath.Join(pkgdir, bp.CgoFiles[i]) - } - } - - args := stringList( - "go", "tool", "cgo", "-objdir", tmpdir, cgoflags, "--", - cgoCPPFLAGS, cgoexeCFLAGS, cgoFiles, - ) - if false { - log.Printf("Running cgo for package %q: %s (dir=%s)", bp.ImportPath, args, pkgdir) - } - cmd := exec.Command(args[0], args[1:]...) - cmd.Dir = pkgdir - cmd.Stdout = os.Stderr - cmd.Stderr = os.Stderr - if err := cmd.Run(); err != nil { - return nil, nil, fmt.Errorf("cgo failed: %s: %s", args, err) - } - - return files, displayFiles, nil -} - -// -- unmodified from 'go build' --------------------------------------- - -// Return the flags to use when invoking the C or C++ compilers, or cgo. -func cflags(p *build.Package, def bool) (cppflags, cflags, cxxflags, ldflags []string) { - var defaults string - if def { - defaults = "-g -O2" - } - - cppflags = stringList(envList("CGO_CPPFLAGS", ""), p.CgoCPPFLAGS) - cflags = stringList(envList("CGO_CFLAGS", defaults), p.CgoCFLAGS) - cxxflags = stringList(envList("CGO_CXXFLAGS", defaults), p.CgoCXXFLAGS) - ldflags = stringList(envList("CGO_LDFLAGS", defaults), p.CgoLDFLAGS) - return -} - -// envList returns the value of the given environment variable broken -// into fields, using the default value when the variable is empty. -func envList(key, def string) []string { - v := os.Getenv(key) - if v == "" { - v = def - } - return strings.Fields(v) -} - -// stringList's arguments should be a sequence of string or []string values. -// stringList flattens them into a single []string. -func stringList(args ...interface{}) []string { - var x []string - for _, arg := range args { - switch arg := arg.(type) { - case []string: - x = append(x, arg...) - case string: - x = append(x, arg) - default: - panic("stringList: invalid argument") - } - } - return x -} diff --git a/vendor/golang.org/x/tools/go/internal/cgo/cgo_pkgconfig.go b/vendor/golang.org/x/tools/go/internal/cgo/cgo_pkgconfig.go deleted file mode 100644 index b5bb95a63..000000000 --- a/vendor/golang.org/x/tools/go/internal/cgo/cgo_pkgconfig.go +++ /dev/null @@ -1,39 +0,0 @@ -// Copyright 2013 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package cgo - -import ( - "errors" - "fmt" - "go/build" - "os/exec" - "strings" -) - -// pkgConfig runs pkg-config with the specified arguments and returns the flags it prints. -func pkgConfig(mode string, pkgs []string) (flags []string, err error) { - cmd := exec.Command("pkg-config", append([]string{mode}, pkgs...)...) - out, err := cmd.CombinedOutput() - if err != nil { - s := fmt.Sprintf("%s failed: %v", strings.Join(cmd.Args, " "), err) - if len(out) > 0 { - s = fmt.Sprintf("%s: %s", s, out) - } - return nil, errors.New(s) - } - if len(out) > 0 { - flags = strings.Fields(string(out)) - } - return -} - -// pkgConfigFlags calls pkg-config if needed and returns the cflags -// needed to build the package. -func pkgConfigFlags(p *build.Package) (cflags []string, err error) { - if len(p.CgoPkgConfig) == 0 { - return nil, nil - } - return pkgConfig("--cflags", p.CgoPkgConfig) -} diff --git a/vendor/golang.org/x/tools/go/internal/gcimporter/gcimporter.go b/vendor/golang.org/x/tools/go/internal/gcimporter/gcimporter.go index 31238f0df..9cf186605 100644 --- a/vendor/golang.org/x/tools/go/internal/gcimporter/gcimporter.go +++ b/vendor/golang.org/x/tools/go/internal/gcimporter/gcimporter.go @@ -9,7 +9,7 @@ // Package gcimporter provides various functions for reading // gc-generated object files that can be used to implement the // Importer interface defined by the Go 1.5 standard library package. -package gcimporter +package gcimporter // import "golang.org/x/tools/go/internal/gcimporter" import ( "bufio" diff --git a/vendor/golang.org/x/tools/go/loader/doc.go b/vendor/golang.org/x/tools/go/loader/doc.go deleted file mode 100644 index c5aa31c1a..000000000 --- a/vendor/golang.org/x/tools/go/loader/doc.go +++ /dev/null @@ -1,204 +0,0 @@ -// Copyright 2015 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -// Package loader loads a complete Go program from source code, parsing -// and type-checking the initial packages plus their transitive closure -// of dependencies. The ASTs and the derived facts are retained for -// later use. -// -// Deprecated: This is an older API and does not have support -// for modules. Use golang.org/x/tools/go/packages instead. -// -// The package defines two primary types: Config, which specifies a -// set of initial packages to load and various other options; and -// Program, which is the result of successfully loading the packages -// specified by a configuration. -// -// The configuration can be set directly, but *Config provides various -// convenience methods to simplify the common cases, each of which can -// be called any number of times. Finally, these are followed by a -// call to Load() to actually load and type-check the program. -// -// var conf loader.Config -// -// // Use the command-line arguments to specify -// // a set of initial packages to load from source. -// // See FromArgsUsage for help. -// rest, err := conf.FromArgs(os.Args[1:], wantTests) -// -// // Parse the specified files and create an ad hoc package with path "foo". -// // All files must have the same 'package' declaration. -// conf.CreateFromFilenames("foo", "foo.go", "bar.go") -// -// // Create an ad hoc package with path "foo" from -// // the specified already-parsed files. -// // All ASTs must have the same 'package' declaration. -// conf.CreateFromFiles("foo", parsedFiles) -// -// // Add "runtime" to the set of packages to be loaded. -// conf.Import("runtime") -// -// // Adds "fmt" and "fmt_test" to the set of packages -// // to be loaded. "fmt" will include *_test.go files. -// conf.ImportWithTests("fmt") -// -// // Finally, load all the packages specified by the configuration. -// prog, err := conf.Load() -// -// See examples_test.go for examples of API usage. -// -// -// CONCEPTS AND TERMINOLOGY -// -// The WORKSPACE is the set of packages accessible to the loader. The -// workspace is defined by Config.Build, a *build.Context. The -// default context treats subdirectories of $GOROOT and $GOPATH as -// packages, but this behavior may be overridden. -// -// An AD HOC package is one specified as a set of source files on the -// command line. In the simplest case, it may consist of a single file -// such as $GOROOT/src/net/http/triv.go. -// -// EXTERNAL TEST packages are those comprised of a set of *_test.go -// files all with the same 'package foo_test' declaration, all in the -// same directory. (go/build.Package calls these files XTestFiles.) -// -// An IMPORTABLE package is one that can be referred to by some import -// spec. Every importable package is uniquely identified by its -// PACKAGE PATH or just PATH, a string such as "fmt", "encoding/json", -// or "cmd/vendor/golang.org/x/arch/x86/x86asm". A package path -// typically denotes a subdirectory of the workspace. -// -// An import declaration uses an IMPORT PATH to refer to a package. -// Most import declarations use the package path as the import path. -// -// Due to VENDORING (https://golang.org/s/go15vendor), the -// interpretation of an import path may depend on the directory in which -// it appears. To resolve an import path to a package path, go/build -// must search the enclosing directories for a subdirectory named -// "vendor". -// -// ad hoc packages and external test packages are NON-IMPORTABLE. The -// path of an ad hoc package is inferred from the package -// declarations of its files and is therefore not a unique package key. -// For example, Config.CreatePkgs may specify two initial ad hoc -// packages, both with path "main". -// -// An AUGMENTED package is an importable package P plus all the -// *_test.go files with same 'package foo' declaration as P. -// (go/build.Package calls these files TestFiles.) -// -// The INITIAL packages are those specified in the configuration. A -// DEPENDENCY is a package loaded to satisfy an import in an initial -// package or another dependency. -// -package loader - -// IMPLEMENTATION NOTES -// -// 'go test', in-package test files, and import cycles -// --------------------------------------------------- -// -// An external test package may depend upon members of the augmented -// package that are not in the unaugmented package, such as functions -// that expose internals. (See bufio/export_test.go for an example.) -// So, the loader must ensure that for each external test package -// it loads, it also augments the corresponding non-test package. -// -// The import graph over n unaugmented packages must be acyclic; the -// import graph over n-1 unaugmented packages plus one augmented -// package must also be acyclic. ('go test' relies on this.) But the -// import graph over n augmented packages may contain cycles. -// -// First, all the (unaugmented) non-test packages and their -// dependencies are imported in the usual way; the loader reports an -// error if it detects an import cycle. -// -// Then, each package P for which testing is desired is augmented by -// the list P' of its in-package test files, by calling -// (*types.Checker).Files. This arrangement ensures that P' may -// reference definitions within P, but P may not reference definitions -// within P'. Furthermore, P' may import any other package, including -// ones that depend upon P, without an import cycle error. -// -// Consider two packages A and B, both of which have lists of -// in-package test files we'll call A' and B', and which have the -// following import graph edges: -// B imports A -// B' imports A -// A' imports B -// This last edge would be expected to create an error were it not -// for the special type-checking discipline above. -// Cycles of size greater than two are possible. For example: -// compress/bzip2/bzip2_test.go (package bzip2) imports "io/ioutil" -// io/ioutil/tempfile_test.go (package ioutil) imports "regexp" -// regexp/exec_test.go (package regexp) imports "compress/bzip2" -// -// -// Concurrency -// ----------- -// -// Let us define the import dependency graph as follows. Each node is a -// list of files passed to (Checker).Files at once. Many of these lists -// are the production code of an importable Go package, so those nodes -// are labelled by the package's path. The remaining nodes are -// ad hoc packages and lists of in-package *_test.go files that augment -// an importable package; those nodes have no label. -// -// The edges of the graph represent import statements appearing within a -// file. An edge connects a node (a list of files) to the node it -// imports, which is importable and thus always labelled. -// -// Loading is controlled by this dependency graph. -// -// To reduce I/O latency, we start loading a package's dependencies -// asynchronously as soon as we've parsed its files and enumerated its -// imports (scanImports). This performs a preorder traversal of the -// import dependency graph. -// -// To exploit hardware parallelism, we type-check unrelated packages in -// parallel, where "unrelated" means not ordered by the partial order of -// the import dependency graph. -// -// We use a concurrency-safe non-blocking cache (importer.imported) to -// record the results of type-checking, whether success or failure. An -// entry is created in this cache by startLoad the first time the -// package is imported. The first goroutine to request an entry becomes -// responsible for completing the task and broadcasting completion to -// subsequent requestors, which block until then. -// -// Type checking occurs in (parallel) postorder: we cannot type-check a -// set of files until we have loaded and type-checked all of their -// immediate dependencies (and thus all of their transitive -// dependencies). If the input were guaranteed free of import cycles, -// this would be trivial: we could simply wait for completion of the -// dependencies and then invoke the typechecker. -// -// But as we saw in the 'go test' section above, some cycles in the -// import graph over packages are actually legal, so long as the -// cycle-forming edge originates in the in-package test files that -// augment the package. This explains why the nodes of the import -// dependency graph are not packages, but lists of files: the unlabelled -// nodes avoid the cycles. Consider packages A and B where B imports A -// and A's in-package tests AT import B. The naively constructed import -// graph over packages would contain a cycle (A+AT) --> B --> (A+AT) but -// the graph over lists of files is AT --> B --> A, where AT is an -// unlabelled node. -// -// Awaiting completion of the dependencies in a cyclic graph would -// deadlock, so we must materialize the import dependency graph (as -// importer.graph) and check whether each import edge forms a cycle. If -// x imports y, and the graph already contains a path from y to x, then -// there is an import cycle, in which case the processing of x must not -// wait for the completion of processing of y. -// -// When the type-checker makes a callback (doImport) to the loader for a -// given import edge, there are two possible cases. In the normal case, -// the dependency has already been completely type-checked; doImport -// does a cache lookup and returns it. In the cyclic case, the entry in -// the cache is still necessarily incomplete, indicating a cycle. We -// perform the cycle check again to obtain the error message, and return -// the error. -// -// The result of using concurrency is about a 2.5x speedup for stdlib_test. diff --git a/vendor/golang.org/x/tools/go/loader/loader.go b/vendor/golang.org/x/tools/go/loader/loader.go deleted file mode 100644 index bc12ca33d..000000000 --- a/vendor/golang.org/x/tools/go/loader/loader.go +++ /dev/null @@ -1,1086 +0,0 @@ -// Copyright 2013 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package loader - -// See doc.go for package documentation and implementation notes. - -import ( - "errors" - "fmt" - "go/ast" - "go/build" - "go/parser" - "go/token" - "go/types" - "os" - "path/filepath" - "sort" - "strings" - "sync" - "time" - - "golang.org/x/tools/go/ast/astutil" - "golang.org/x/tools/go/internal/cgo" -) - -var ignoreVendor build.ImportMode - -const trace = false // show timing info for type-checking - -// Config specifies the configuration for loading a whole program from -// Go source code. -// The zero value for Config is a ready-to-use default configuration. -type Config struct { - // Fset is the file set for the parser to use when loading the - // program. If nil, it may be lazily initialized by any - // method of Config. - Fset *token.FileSet - - // ParserMode specifies the mode to be used by the parser when - // loading source packages. - ParserMode parser.Mode - - // TypeChecker contains options relating to the type checker. - // - // The supplied IgnoreFuncBodies is not used; the effective - // value comes from the TypeCheckFuncBodies func below. - // The supplied Import function is not used either. - TypeChecker types.Config - - // TypeCheckFuncBodies is a predicate over package paths. - // A package for which the predicate is false will - // have its package-level declarations type checked, but not - // its function bodies; this can be used to quickly load - // dependencies from source. If nil, all func bodies are type - // checked. - TypeCheckFuncBodies func(path string) bool - - // If Build is non-nil, it is used to locate source packages. - // Otherwise &build.Default is used. - // - // By default, cgo is invoked to preprocess Go files that - // import the fake package "C". This behaviour can be - // disabled by setting CGO_ENABLED=0 in the environment prior - // to startup, or by setting Build.CgoEnabled=false. - Build *build.Context - - // The current directory, used for resolving relative package - // references such as "./go/loader". If empty, os.Getwd will be - // used instead. - Cwd string - - // If DisplayPath is non-nil, it is used to transform each - // file name obtained from Build.Import(). This can be used - // to prevent a virtualized build.Config's file names from - // leaking into the user interface. - DisplayPath func(path string) string - - // If AllowErrors is true, Load will return a Program even - // if some of the its packages contained I/O, parser or type - // errors; such errors are accessible via PackageInfo.Errors. If - // false, Load will fail if any package had an error. - AllowErrors bool - - // CreatePkgs specifies a list of non-importable initial - // packages to create. The resulting packages will appear in - // the corresponding elements of the Program.Created slice. - CreatePkgs []PkgSpec - - // ImportPkgs specifies a set of initial packages to load. - // The map keys are package paths. - // - // The map value indicates whether to load tests. If true, Load - // will add and type-check two lists of files to the package: - // non-test files followed by in-package *_test.go files. In - // addition, it will append the external test package (if any) - // to Program.Created. - ImportPkgs map[string]bool - - // FindPackage is called during Load to create the build.Package - // for a given import path from a given directory. - // If FindPackage is nil, (*build.Context).Import is used. - // A client may use this hook to adapt to a proprietary build - // system that does not follow the "go build" layout - // conventions, for example. - // - // It must be safe to call concurrently from multiple goroutines. - FindPackage func(ctxt *build.Context, importPath, fromDir string, mode build.ImportMode) (*build.Package, error) - - // AfterTypeCheck is called immediately after a list of files - // has been type-checked and appended to info.Files. - // - // This optional hook function is the earliest opportunity for - // the client to observe the output of the type checker, - // which may be useful to reduce analysis latency when loading - // a large program. - // - // The function is permitted to modify info.Info, for instance - // to clear data structures that are no longer needed, which can - // dramatically reduce peak memory consumption. - // - // The function may be called twice for the same PackageInfo: - // once for the files of the package and again for the - // in-package test files. - // - // It must be safe to call concurrently from multiple goroutines. - AfterTypeCheck func(info *PackageInfo, files []*ast.File) -} - -// A PkgSpec specifies a non-importable package to be created by Load. -// Files are processed first, but typically only one of Files and -// Filenames is provided. The path needn't be globally unique. -// -// For vendoring purposes, the package's directory is the one that -// contains the first file. -type PkgSpec struct { - Path string // package path ("" => use package declaration) - Files []*ast.File // ASTs of already-parsed files - Filenames []string // names of files to be parsed -} - -// A Program is a Go program loaded from source as specified by a Config. -type Program struct { - Fset *token.FileSet // the file set for this program - - // Created[i] contains the initial package whose ASTs or - // filenames were supplied by Config.CreatePkgs[i], followed by - // the external test package, if any, of each package in - // Config.ImportPkgs ordered by ImportPath. - // - // NOTE: these files must not import "C". Cgo preprocessing is - // only performed on imported packages, not ad hoc packages. - // - // TODO(adonovan): we need to copy and adapt the logic of - // goFilesPackage (from $GOROOT/src/cmd/go/build.go) and make - // Config.Import and Config.Create methods return the same kind - // of entity, essentially a build.Package. - // Perhaps we can even reuse that type directly. - Created []*PackageInfo - - // Imported contains the initially imported packages, - // as specified by Config.ImportPkgs. - Imported map[string]*PackageInfo - - // AllPackages contains the PackageInfo of every package - // encountered by Load: all initial packages and all - // dependencies, including incomplete ones. - AllPackages map[*types.Package]*PackageInfo - - // importMap is the canonical mapping of package paths to - // packages. It contains all Imported initial packages, but not - // Created ones, and all imported dependencies. - importMap map[string]*types.Package -} - -// PackageInfo holds the ASTs and facts derived by the type-checker -// for a single package. -// -// Not mutated once exposed via the API. -// -type PackageInfo struct { - Pkg *types.Package - Importable bool // true if 'import "Pkg.Path()"' would resolve to this - TransitivelyErrorFree bool // true if Pkg and all its dependencies are free of errors - Files []*ast.File // syntax trees for the package's files - Errors []error // non-nil if the package had errors - types.Info // type-checker deductions. - dir string // package directory - - checker *types.Checker // transient type-checker state - errorFunc func(error) -} - -func (info *PackageInfo) String() string { return info.Pkg.Path() } - -func (info *PackageInfo) appendError(err error) { - if info.errorFunc != nil { - info.errorFunc(err) - } else { - fmt.Fprintln(os.Stderr, err) - } - info.Errors = append(info.Errors, err) -} - -func (conf *Config) fset() *token.FileSet { - if conf.Fset == nil { - conf.Fset = token.NewFileSet() - } - return conf.Fset -} - -// ParseFile is a convenience function (intended for testing) that invokes -// the parser using the Config's FileSet, which is initialized if nil. -// -// src specifies the parser input as a string, []byte, or io.Reader, and -// filename is its apparent name. If src is nil, the contents of -// filename are read from the file system. -// -func (conf *Config) ParseFile(filename string, src interface{}) (*ast.File, error) { - // TODO(adonovan): use conf.build() etc like parseFiles does. - return parser.ParseFile(conf.fset(), filename, src, conf.ParserMode) -} - -// FromArgsUsage is a partial usage message that applications calling -// FromArgs may wish to include in their -help output. -const FromArgsUsage = ` - is a list of arguments denoting a set of initial packages. -It may take one of two forms: - -1. A list of *.go source files. - - All of the specified files are loaded, parsed and type-checked - as a single package. All the files must belong to the same directory. - -2. A list of import paths, each denoting a package. - - The package's directory is found relative to the $GOROOT and - $GOPATH using similar logic to 'go build', and the *.go files in - that directory are loaded, parsed and type-checked as a single - package. - - In addition, all *_test.go files in the directory are then loaded - and parsed. Those files whose package declaration equals that of - the non-*_test.go files are included in the primary package. Test - files whose package declaration ends with "_test" are type-checked - as another package, the 'external' test package, so that a single - import path may denote two packages. (Whether this behaviour is - enabled is tool-specific, and may depend on additional flags.) - -A '--' argument terminates the list of packages. -` - -// FromArgs interprets args as a set of initial packages to load from -// source and updates the configuration. It returns the list of -// unconsumed arguments. -// -// It is intended for use in command-line interfaces that require a -// set of initial packages to be specified; see FromArgsUsage message -// for details. -// -// Only superficial errors are reported at this stage; errors dependent -// on I/O are detected during Load. -// -func (conf *Config) FromArgs(args []string, xtest bool) ([]string, error) { - var rest []string - for i, arg := range args { - if arg == "--" { - rest = args[i+1:] - args = args[:i] - break // consume "--" and return the remaining args - } - } - - if len(args) > 0 && strings.HasSuffix(args[0], ".go") { - // Assume args is a list of a *.go files - // denoting a single ad hoc package. - for _, arg := range args { - if !strings.HasSuffix(arg, ".go") { - return nil, fmt.Errorf("named files must be .go files: %s", arg) - } - } - conf.CreateFromFilenames("", args...) - } else { - // Assume args are directories each denoting a - // package and (perhaps) an external test, iff xtest. - for _, arg := range args { - if xtest { - conf.ImportWithTests(arg) - } else { - conf.Import(arg) - } - } - } - - return rest, nil -} - -// CreateFromFilenames is a convenience function that adds -// a conf.CreatePkgs entry to create a package of the specified *.go -// files. -// -func (conf *Config) CreateFromFilenames(path string, filenames ...string) { - conf.CreatePkgs = append(conf.CreatePkgs, PkgSpec{Path: path, Filenames: filenames}) -} - -// CreateFromFiles is a convenience function that adds a conf.CreatePkgs -// entry to create package of the specified path and parsed files. -// -func (conf *Config) CreateFromFiles(path string, files ...*ast.File) { - conf.CreatePkgs = append(conf.CreatePkgs, PkgSpec{Path: path, Files: files}) -} - -// ImportWithTests is a convenience function that adds path to -// ImportPkgs, the set of initial source packages located relative to -// $GOPATH. The package will be augmented by any *_test.go files in -// its directory that contain a "package x" (not "package x_test") -// declaration. -// -// In addition, if any *_test.go files contain a "package x_test" -// declaration, an additional package comprising just those files will -// be added to CreatePkgs. -// -func (conf *Config) ImportWithTests(path string) { conf.addImport(path, true) } - -// Import is a convenience function that adds path to ImportPkgs, the -// set of initial packages that will be imported from source. -// -func (conf *Config) Import(path string) { conf.addImport(path, false) } - -func (conf *Config) addImport(path string, tests bool) { - if path == "C" { - return // ignore; not a real package - } - if conf.ImportPkgs == nil { - conf.ImportPkgs = make(map[string]bool) - } - conf.ImportPkgs[path] = conf.ImportPkgs[path] || tests -} - -// PathEnclosingInterval returns the PackageInfo and ast.Node that -// contain source interval [start, end), and all the node's ancestors -// up to the AST root. It searches all ast.Files of all packages in prog. -// exact is defined as for astutil.PathEnclosingInterval. -// -// The zero value is returned if not found. -// -func (prog *Program) PathEnclosingInterval(start, end token.Pos) (pkg *PackageInfo, path []ast.Node, exact bool) { - for _, info := range prog.AllPackages { - for _, f := range info.Files { - if f.Pos() == token.NoPos { - // This can happen if the parser saw - // too many errors and bailed out. - // (Use parser.AllErrors to prevent that.) - continue - } - if !tokenFileContainsPos(prog.Fset.File(f.Pos()), start) { - continue - } - if path, exact := astutil.PathEnclosingInterval(f, start, end); path != nil { - return info, path, exact - } - } - } - return nil, nil, false -} - -// InitialPackages returns a new slice containing the set of initial -// packages (Created + Imported) in unspecified order. -// -func (prog *Program) InitialPackages() []*PackageInfo { - infos := make([]*PackageInfo, 0, len(prog.Created)+len(prog.Imported)) - infos = append(infos, prog.Created...) - for _, info := range prog.Imported { - infos = append(infos, info) - } - return infos -} - -// Package returns the ASTs and results of type checking for the -// specified package. -func (prog *Program) Package(path string) *PackageInfo { - if info, ok := prog.AllPackages[prog.importMap[path]]; ok { - return info - } - for _, info := range prog.Created { - if path == info.Pkg.Path() { - return info - } - } - return nil -} - -// ---------- Implementation ---------- - -// importer holds the working state of the algorithm. -type importer struct { - conf *Config // the client configuration - start time.Time // for logging - - progMu sync.Mutex // guards prog - prog *Program // the resulting program - - // findpkg is a memoization of FindPackage. - findpkgMu sync.Mutex // guards findpkg - findpkg map[findpkgKey]*findpkgValue - - importedMu sync.Mutex // guards imported - imported map[string]*importInfo // all imported packages (incl. failures) by import path - - // import dependency graph: graph[x][y] => x imports y - // - // Since non-importable packages cannot be cyclic, we ignore - // their imports, thus we only need the subgraph over importable - // packages. Nodes are identified by their import paths. - graphMu sync.Mutex - graph map[string]map[string]bool -} - -type findpkgKey struct { - importPath string - fromDir string - mode build.ImportMode -} - -type findpkgValue struct { - ready chan struct{} // closed to broadcast readiness - bp *build.Package - err error -} - -// importInfo tracks the success or failure of a single import. -// -// Upon completion, exactly one of info and err is non-nil: -// info on successful creation of a package, err otherwise. -// A successful package may still contain type errors. -// -type importInfo struct { - path string // import path - info *PackageInfo // results of typechecking (including errors) - complete chan struct{} // closed to broadcast that info is set. -} - -// awaitCompletion blocks until ii is complete, -// i.e. the info field is safe to inspect. -func (ii *importInfo) awaitCompletion() { - <-ii.complete // wait for close -} - -// Complete marks ii as complete. -// Its info and err fields will not be subsequently updated. -func (ii *importInfo) Complete(info *PackageInfo) { - if info == nil { - panic("info == nil") - } - ii.info = info - close(ii.complete) -} - -type importError struct { - path string // import path - err error // reason for failure to create a package -} - -// Load creates the initial packages specified by conf.{Create,Import}Pkgs, -// loading their dependencies packages as needed. -// -// On success, Load returns a Program containing a PackageInfo for -// each package. On failure, it returns an error. -// -// If AllowErrors is true, Load will return a Program even if some -// packages contained I/O, parser or type errors, or if dependencies -// were missing. (Such errors are accessible via PackageInfo.Errors. If -// false, Load will fail if any package had an error. -// -// It is an error if no packages were loaded. -// -func (conf *Config) Load() (*Program, error) { - // Create a simple default error handler for parse/type errors. - if conf.TypeChecker.Error == nil { - conf.TypeChecker.Error = func(e error) { fmt.Fprintln(os.Stderr, e) } - } - - // Set default working directory for relative package references. - if conf.Cwd == "" { - var err error - conf.Cwd, err = os.Getwd() - if err != nil { - return nil, err - } - } - - // Install default FindPackage hook using go/build logic. - if conf.FindPackage == nil { - conf.FindPackage = (*build.Context).Import - } - - prog := &Program{ - Fset: conf.fset(), - Imported: make(map[string]*PackageInfo), - importMap: make(map[string]*types.Package), - AllPackages: make(map[*types.Package]*PackageInfo), - } - - imp := importer{ - conf: conf, - prog: prog, - findpkg: make(map[findpkgKey]*findpkgValue), - imported: make(map[string]*importInfo), - start: time.Now(), - graph: make(map[string]map[string]bool), - } - - // -- loading proper (concurrent phase) -------------------------------- - - var errpkgs []string // packages that contained errors - - // Load the initially imported packages and their dependencies, - // in parallel. - // No vendor check on packages imported from the command line. - infos, importErrors := imp.importAll("", conf.Cwd, conf.ImportPkgs, ignoreVendor) - for _, ie := range importErrors { - conf.TypeChecker.Error(ie.err) // failed to create package - errpkgs = append(errpkgs, ie.path) - } - for _, info := range infos { - prog.Imported[info.Pkg.Path()] = info - } - - // Augment the designated initial packages by their tests. - // Dependencies are loaded in parallel. - var xtestPkgs []*build.Package - for importPath, augment := range conf.ImportPkgs { - if !augment { - continue - } - - // No vendor check on packages imported from command line. - bp, err := imp.findPackage(importPath, conf.Cwd, ignoreVendor) - if err != nil { - // Package not found, or can't even parse package declaration. - // Already reported by previous loop; ignore it. - continue - } - - // Needs external test package? - if len(bp.XTestGoFiles) > 0 { - xtestPkgs = append(xtestPkgs, bp) - } - - // Consult the cache using the canonical package path. - path := bp.ImportPath - imp.importedMu.Lock() // (unnecessary, we're sequential here) - ii, ok := imp.imported[path] - // Paranoid checks added due to issue #11012. - if !ok { - // Unreachable. - // The previous loop called importAll and thus - // startLoad for each path in ImportPkgs, which - // populates imp.imported[path] with a non-zero value. - panic(fmt.Sprintf("imported[%q] not found", path)) - } - if ii == nil { - // Unreachable. - // The ii values in this loop are the same as in - // the previous loop, which enforced the invariant - // that at least one of ii.err and ii.info is non-nil. - panic(fmt.Sprintf("imported[%q] == nil", path)) - } - if ii.info == nil { - // Unreachable. - // awaitCompletion has the postcondition - // ii.info != nil. - panic(fmt.Sprintf("imported[%q].info = nil", path)) - } - info := ii.info - imp.importedMu.Unlock() - - // Parse the in-package test files. - files, errs := imp.conf.parsePackageFiles(bp, 't') - for _, err := range errs { - info.appendError(err) - } - - // The test files augmenting package P cannot be imported, - // but may import packages that import P, - // so we must disable the cycle check. - imp.addFiles(info, files, false) - } - - createPkg := func(path, dir string, files []*ast.File, errs []error) { - info := imp.newPackageInfo(path, dir) - for _, err := range errs { - info.appendError(err) - } - - // Ad hoc packages are non-importable, - // so no cycle check is needed. - // addFiles loads dependencies in parallel. - imp.addFiles(info, files, false) - prog.Created = append(prog.Created, info) - } - - // Create packages specified by conf.CreatePkgs. - for _, cp := range conf.CreatePkgs { - files, errs := parseFiles(conf.fset(), conf.build(), nil, conf.Cwd, cp.Filenames, conf.ParserMode) - files = append(files, cp.Files...) - - path := cp.Path - if path == "" { - if len(files) > 0 { - path = files[0].Name.Name - } else { - path = "(unnamed)" - } - } - - dir := conf.Cwd - if len(files) > 0 && files[0].Pos().IsValid() { - dir = filepath.Dir(conf.fset().File(files[0].Pos()).Name()) - } - createPkg(path, dir, files, errs) - } - - // Create external test packages. - sort.Sort(byImportPath(xtestPkgs)) - for _, bp := range xtestPkgs { - files, errs := imp.conf.parsePackageFiles(bp, 'x') - createPkg(bp.ImportPath+"_test", bp.Dir, files, errs) - } - - // -- finishing up (sequential) ---------------------------------------- - - if len(prog.Imported)+len(prog.Created) == 0 { - return nil, errors.New("no initial packages were loaded") - } - - // Create infos for indirectly imported packages. - // e.g. incomplete packages without syntax, loaded from export data. - for _, obj := range prog.importMap { - info := prog.AllPackages[obj] - if info == nil { - prog.AllPackages[obj] = &PackageInfo{Pkg: obj, Importable: true} - } else { - // finished - info.checker = nil - info.errorFunc = nil - } - } - - if !conf.AllowErrors { - // Report errors in indirectly imported packages. - for _, info := range prog.AllPackages { - if len(info.Errors) > 0 { - errpkgs = append(errpkgs, info.Pkg.Path()) - } - } - if errpkgs != nil { - var more string - if len(errpkgs) > 3 { - more = fmt.Sprintf(" and %d more", len(errpkgs)-3) - errpkgs = errpkgs[:3] - } - return nil, fmt.Errorf("couldn't load packages due to errors: %s%s", - strings.Join(errpkgs, ", "), more) - } - } - - markErrorFreePackages(prog.AllPackages) - - return prog, nil -} - -type byImportPath []*build.Package - -func (b byImportPath) Len() int { return len(b) } -func (b byImportPath) Less(i, j int) bool { return b[i].ImportPath < b[j].ImportPath } -func (b byImportPath) Swap(i, j int) { b[i], b[j] = b[j], b[i] } - -// markErrorFreePackages sets the TransitivelyErrorFree flag on all -// applicable packages. -func markErrorFreePackages(allPackages map[*types.Package]*PackageInfo) { - // Build the transpose of the import graph. - importedBy := make(map[*types.Package]map[*types.Package]bool) - for P := range allPackages { - for _, Q := range P.Imports() { - clients, ok := importedBy[Q] - if !ok { - clients = make(map[*types.Package]bool) - importedBy[Q] = clients - } - clients[P] = true - } - } - - // Find all packages reachable from some error package. - reachable := make(map[*types.Package]bool) - var visit func(*types.Package) - visit = func(p *types.Package) { - if !reachable[p] { - reachable[p] = true - for q := range importedBy[p] { - visit(q) - } - } - } - for _, info := range allPackages { - if len(info.Errors) > 0 { - visit(info.Pkg) - } - } - - // Mark the others as "transitively error-free". - for _, info := range allPackages { - if !reachable[info.Pkg] { - info.TransitivelyErrorFree = true - } - } -} - -// build returns the effective build context. -func (conf *Config) build() *build.Context { - if conf.Build != nil { - return conf.Build - } - return &build.Default -} - -// parsePackageFiles enumerates the files belonging to package path, -// then loads, parses and returns them, plus a list of I/O or parse -// errors that were encountered. -// -// 'which' indicates which files to include: -// 'g': include non-test *.go source files (GoFiles + processed CgoFiles) -// 't': include in-package *_test.go source files (TestGoFiles) -// 'x': include external *_test.go source files. (XTestGoFiles) -// -func (conf *Config) parsePackageFiles(bp *build.Package, which rune) ([]*ast.File, []error) { - if bp.ImportPath == "unsafe" { - return nil, nil - } - var filenames []string - switch which { - case 'g': - filenames = bp.GoFiles - case 't': - filenames = bp.TestGoFiles - case 'x': - filenames = bp.XTestGoFiles - default: - panic(which) - } - - files, errs := parseFiles(conf.fset(), conf.build(), conf.DisplayPath, bp.Dir, filenames, conf.ParserMode) - - // Preprocess CgoFiles and parse the outputs (sequentially). - if which == 'g' && bp.CgoFiles != nil { - cgofiles, err := cgo.ProcessFiles(bp, conf.fset(), conf.DisplayPath, conf.ParserMode) - if err != nil { - errs = append(errs, err) - } else { - files = append(files, cgofiles...) - } - } - - return files, errs -} - -// doImport imports the package denoted by path. -// It implements the types.Importer signature. -// -// It returns an error if a package could not be created -// (e.g. go/build or parse error), but type errors are reported via -// the types.Config.Error callback (the first of which is also saved -// in the package's PackageInfo). -// -// Idempotent. -// -func (imp *importer) doImport(from *PackageInfo, to string) (*types.Package, error) { - if to == "C" { - // This should be unreachable, but ad hoc packages are - // not currently subject to cgo preprocessing. - // See https://golang.org/issue/11627. - return nil, fmt.Errorf(`the loader doesn't cgo-process ad hoc packages like %q; see Go issue 11627`, - from.Pkg.Path()) - } - - bp, err := imp.findPackage(to, from.dir, 0) - if err != nil { - return nil, err - } - - // The standard unsafe package is handled specially, - // and has no PackageInfo. - if bp.ImportPath == "unsafe" { - return types.Unsafe, nil - } - - // Look for the package in the cache using its canonical path. - path := bp.ImportPath - imp.importedMu.Lock() - ii := imp.imported[path] - imp.importedMu.Unlock() - if ii == nil { - panic("internal error: unexpected import: " + path) - } - if ii.info != nil { - return ii.info.Pkg, nil - } - - // Import of incomplete package: this indicates a cycle. - fromPath := from.Pkg.Path() - if cycle := imp.findPath(path, fromPath); cycle != nil { - // Normalize cycle: start from alphabetically largest node. - pos, start := -1, "" - for i, s := range cycle { - if pos < 0 || s > start { - pos, start = i, s - } - } - cycle = append(cycle, cycle[:pos]...)[pos:] // rotate cycle to start from largest - cycle = append(cycle, cycle[0]) // add start node to end to show cycliness - return nil, fmt.Errorf("import cycle: %s", strings.Join(cycle, " -> ")) - } - - panic("internal error: import of incomplete (yet acyclic) package: " + fromPath) -} - -// findPackage locates the package denoted by the importPath in the -// specified directory. -func (imp *importer) findPackage(importPath, fromDir string, mode build.ImportMode) (*build.Package, error) { - // We use a non-blocking duplicate-suppressing cache (gopl.io §9.7) - // to avoid holding the lock around FindPackage. - key := findpkgKey{importPath, fromDir, mode} - imp.findpkgMu.Lock() - v, ok := imp.findpkg[key] - if ok { - // cache hit - imp.findpkgMu.Unlock() - - <-v.ready // wait for entry to become ready - } else { - // Cache miss: this goroutine becomes responsible for - // populating the map entry and broadcasting its readiness. - v = &findpkgValue{ready: make(chan struct{})} - imp.findpkg[key] = v - imp.findpkgMu.Unlock() - - ioLimit <- true - v.bp, v.err = imp.conf.FindPackage(imp.conf.build(), importPath, fromDir, mode) - <-ioLimit - - if _, ok := v.err.(*build.NoGoError); ok { - v.err = nil // empty directory is not an error - } - - close(v.ready) // broadcast ready condition - } - return v.bp, v.err -} - -// importAll loads, parses, and type-checks the specified packages in -// parallel and returns their completed importInfos in unspecified order. -// -// fromPath is the package path of the importing package, if it is -// importable, "" otherwise. It is used for cycle detection. -// -// fromDir is the directory containing the import declaration that -// caused these imports. -// -func (imp *importer) importAll(fromPath, fromDir string, imports map[string]bool, mode build.ImportMode) (infos []*PackageInfo, errors []importError) { - // TODO(adonovan): opt: do the loop in parallel once - // findPackage is non-blocking. - var pending []*importInfo - for importPath := range imports { - bp, err := imp.findPackage(importPath, fromDir, mode) - if err != nil { - errors = append(errors, importError{ - path: importPath, - err: err, - }) - continue - } - pending = append(pending, imp.startLoad(bp)) - } - - if fromPath != "" { - // We're loading a set of imports. - // - // We must record graph edges from the importing package - // to its dependencies, and check for cycles. - imp.graphMu.Lock() - deps, ok := imp.graph[fromPath] - if !ok { - deps = make(map[string]bool) - imp.graph[fromPath] = deps - } - for _, ii := range pending { - deps[ii.path] = true - } - imp.graphMu.Unlock() - } - - for _, ii := range pending { - if fromPath != "" { - if cycle := imp.findPath(ii.path, fromPath); cycle != nil { - // Cycle-forming import: we must not await its - // completion since it would deadlock. - // - // We don't record the error in ii since - // the error is really associated with the - // cycle-forming edge, not the package itself. - // (Also it would complicate the - // invariants of importPath completion.) - if trace { - fmt.Fprintf(os.Stderr, "import cycle: %q\n", cycle) - } - continue - } - } - ii.awaitCompletion() - infos = append(infos, ii.info) - } - - return infos, errors -} - -// findPath returns an arbitrary path from 'from' to 'to' in the import -// graph, or nil if there was none. -func (imp *importer) findPath(from, to string) []string { - imp.graphMu.Lock() - defer imp.graphMu.Unlock() - - seen := make(map[string]bool) - var search func(stack []string, importPath string) []string - search = func(stack []string, importPath string) []string { - if !seen[importPath] { - seen[importPath] = true - stack = append(stack, importPath) - if importPath == to { - return stack - } - for x := range imp.graph[importPath] { - if p := search(stack, x); p != nil { - return p - } - } - } - return nil - } - return search(make([]string, 0, 20), from) -} - -// startLoad initiates the loading, parsing and type-checking of the -// specified package and its dependencies, if it has not already begun. -// -// It returns an importInfo, not necessarily in a completed state. The -// caller must call awaitCompletion() before accessing its info field. -// -// startLoad is concurrency-safe and idempotent. -// -func (imp *importer) startLoad(bp *build.Package) *importInfo { - path := bp.ImportPath - imp.importedMu.Lock() - ii, ok := imp.imported[path] - if !ok { - ii = &importInfo{path: path, complete: make(chan struct{})} - imp.imported[path] = ii - go func() { - info := imp.load(bp) - ii.Complete(info) - }() - } - imp.importedMu.Unlock() - - return ii -} - -// load implements package loading by parsing Go source files -// located by go/build. -func (imp *importer) load(bp *build.Package) *PackageInfo { - info := imp.newPackageInfo(bp.ImportPath, bp.Dir) - info.Importable = true - files, errs := imp.conf.parsePackageFiles(bp, 'g') - for _, err := range errs { - info.appendError(err) - } - - imp.addFiles(info, files, true) - - imp.progMu.Lock() - imp.prog.importMap[bp.ImportPath] = info.Pkg - imp.progMu.Unlock() - - return info -} - -// addFiles adds and type-checks the specified files to info, loading -// their dependencies if needed. The order of files determines the -// package initialization order. It may be called multiple times on the -// same package. Errors are appended to the info.Errors field. -// -// cycleCheck determines whether the imports within files create -// dependency edges that should be checked for potential cycles. -// -func (imp *importer) addFiles(info *PackageInfo, files []*ast.File, cycleCheck bool) { - // Ensure the dependencies are loaded, in parallel. - var fromPath string - if cycleCheck { - fromPath = info.Pkg.Path() - } - // TODO(adonovan): opt: make the caller do scanImports. - // Callers with a build.Package can skip it. - imp.importAll(fromPath, info.dir, scanImports(files), 0) - - if trace { - fmt.Fprintf(os.Stderr, "%s: start %q (%d)\n", - time.Since(imp.start), info.Pkg.Path(), len(files)) - } - - // Don't call checker.Files on Unsafe, even with zero files, - // because it would mutate the package, which is a global. - if info.Pkg == types.Unsafe { - if len(files) > 0 { - panic(`"unsafe" package contains unexpected files`) - } - } else { - // Ignore the returned (first) error since we - // already collect them all in the PackageInfo. - info.checker.Files(files) - info.Files = append(info.Files, files...) - } - - if imp.conf.AfterTypeCheck != nil { - imp.conf.AfterTypeCheck(info, files) - } - - if trace { - fmt.Fprintf(os.Stderr, "%s: stop %q\n", - time.Since(imp.start), info.Pkg.Path()) - } -} - -func (imp *importer) newPackageInfo(path, dir string) *PackageInfo { - var pkg *types.Package - if path == "unsafe" { - pkg = types.Unsafe - } else { - pkg = types.NewPackage(path, "") - } - info := &PackageInfo{ - Pkg: pkg, - Info: types.Info{ - Types: make(map[ast.Expr]types.TypeAndValue), - Defs: make(map[*ast.Ident]types.Object), - Uses: make(map[*ast.Ident]types.Object), - Implicits: make(map[ast.Node]types.Object), - Scopes: make(map[ast.Node]*types.Scope), - Selections: make(map[*ast.SelectorExpr]*types.Selection), - }, - errorFunc: imp.conf.TypeChecker.Error, - dir: dir, - } - - // Copy the types.Config so we can vary it across PackageInfos. - tc := imp.conf.TypeChecker - tc.IgnoreFuncBodies = false - if f := imp.conf.TypeCheckFuncBodies; f != nil { - tc.IgnoreFuncBodies = !f(path) - } - tc.Importer = closure{imp, info} - tc.Error = info.appendError // appendError wraps the user's Error function - - info.checker = types.NewChecker(&tc, imp.conf.fset(), pkg, &info.Info) - imp.progMu.Lock() - imp.prog.AllPackages[pkg] = info - imp.progMu.Unlock() - return info -} - -type closure struct { - imp *importer - info *PackageInfo -} - -func (c closure) Import(to string) (*types.Package, error) { return c.imp.doImport(c.info, to) } diff --git a/vendor/golang.org/x/tools/go/loader/util.go b/vendor/golang.org/x/tools/go/loader/util.go deleted file mode 100644 index 7f38dd740..000000000 --- a/vendor/golang.org/x/tools/go/loader/util.go +++ /dev/null @@ -1,124 +0,0 @@ -// Copyright 2013 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package loader - -import ( - "go/ast" - "go/build" - "go/parser" - "go/token" - "io" - "os" - "strconv" - "sync" - - "golang.org/x/tools/go/buildutil" -) - -// We use a counting semaphore to limit -// the number of parallel I/O calls per process. -var ioLimit = make(chan bool, 10) - -// parseFiles parses the Go source files within directory dir and -// returns the ASTs of the ones that could be at least partially parsed, -// along with a list of I/O and parse errors encountered. -// -// I/O is done via ctxt, which may specify a virtual file system. -// displayPath is used to transform the filenames attached to the ASTs. -// -func parseFiles(fset *token.FileSet, ctxt *build.Context, displayPath func(string) string, dir string, files []string, mode parser.Mode) ([]*ast.File, []error) { - if displayPath == nil { - displayPath = func(path string) string { return path } - } - var wg sync.WaitGroup - n := len(files) - parsed := make([]*ast.File, n) - errors := make([]error, n) - for i, file := range files { - if !buildutil.IsAbsPath(ctxt, file) { - file = buildutil.JoinPath(ctxt, dir, file) - } - wg.Add(1) - go func(i int, file string) { - ioLimit <- true // wait - defer func() { - wg.Done() - <-ioLimit // signal - }() - var rd io.ReadCloser - var err error - if ctxt.OpenFile != nil { - rd, err = ctxt.OpenFile(file) - } else { - rd, err = os.Open(file) - } - if err != nil { - errors[i] = err // open failed - return - } - - // ParseFile may return both an AST and an error. - parsed[i], errors[i] = parser.ParseFile(fset, displayPath(file), rd, mode) - rd.Close() - }(i, file) - } - wg.Wait() - - // Eliminate nils, preserving order. - var o int - for _, f := range parsed { - if f != nil { - parsed[o] = f - o++ - } - } - parsed = parsed[:o] - - o = 0 - for _, err := range errors { - if err != nil { - errors[o] = err - o++ - } - } - errors = errors[:o] - - return parsed, errors -} - -// scanImports returns the set of all import paths from all -// import specs in the specified files. -func scanImports(files []*ast.File) map[string]bool { - imports := make(map[string]bool) - for _, f := range files { - for _, decl := range f.Decls { - if decl, ok := decl.(*ast.GenDecl); ok && decl.Tok == token.IMPORT { - for _, spec := range decl.Specs { - spec := spec.(*ast.ImportSpec) - - // NB: do not assume the program is well-formed! - path, err := strconv.Unquote(spec.Path.Value) - if err != nil { - continue // quietly ignore the error - } - if path == "C" { - continue // skip pseudopackage - } - imports[path] = true - } - } - } - } - return imports -} - -// ---------- Internal helpers ---------- - -// TODO(adonovan): make this a method: func (*token.File) Contains(token.Pos) -func tokenFileContainsPos(f *token.File, pos token.Pos) bool { - p := int(pos) - base := f.Base() - return base <= p && p < base+f.Size() -} diff --git a/vendor/golang.org/x/tools/go/packages/doc.go b/vendor/golang.org/x/tools/go/packages/doc.go index a1ba6a9eb..4bfe28a51 100644 --- a/vendor/golang.org/x/tools/go/packages/doc.go +++ b/vendor/golang.org/x/tools/go/packages/doc.go @@ -69,7 +69,7 @@ according to the conventions of the underlying build system. See the Example function for typical usage. */ -package packages +package packages // import "golang.org/x/tools/go/packages" /* diff --git a/vendor/golang.org/x/tools/go/packages/golist.go b/vendor/golang.org/x/tools/go/packages/golist.go index 9c895b389..308971132 100644 --- a/vendor/golang.org/x/tools/go/packages/golist.go +++ b/vendor/golang.org/x/tools/go/packages/golist.go @@ -6,17 +6,16 @@ package packages import ( "bytes" + "context" "encoding/json" "fmt" "go/types" - "io/ioutil" "log" "os" "os/exec" "path" "path/filepath" "reflect" - "regexp" "strconv" "strings" "sync" @@ -24,8 +23,6 @@ import ( "unicode" "golang.org/x/tools/go/internal/packagesdriver" - "golang.org/x/tools/internal/gopathwalk" - "golang.org/x/tools/internal/semver" ) // debug controls verbose logging. @@ -44,16 +41,21 @@ type responseDeduper struct { dr *driverResponse } -// init fills in r with a driverResponse. -func (r *responseDeduper) init(dr *driverResponse) { - r.dr = dr - r.seenRoots = map[string]bool{} - r.seenPackages = map[string]*Package{} +func newDeduper() *responseDeduper { + return &responseDeduper{ + dr: &driverResponse{}, + seenRoots: map[string]bool{}, + seenPackages: map[string]*Package{}, + } +} + +// addAll fills in r with a driverResponse. +func (r *responseDeduper) addAll(dr *driverResponse) { for _, pkg := range dr.Packages { - r.seenPackages[pkg.ID] = pkg + r.addPackage(pkg) } for _, root := range dr.Roots { - r.seenRoots[root] = true + r.addRoot(root) } } @@ -73,25 +75,47 @@ func (r *responseDeduper) addRoot(id string) { r.dr.Roots = append(r.dr.Roots, id) } -// goInfo contains global information from the go tool. -type goInfo struct { - rootDirs map[string]string - env goEnv +type golistState struct { + cfg *Config + ctx context.Context + + envOnce sync.Once + goEnvError error + goEnv map[string]string + + rootsOnce sync.Once + rootDirsError error + rootDirs map[string]string + + // vendorDirs caches the (non)existence of vendor directories. + vendorDirs map[string]bool } -type goEnv struct { - modulesOn bool +// getEnv returns Go environment variables. Only specific variables are +// populated -- computing all of them is slow. +func (state *golistState) getEnv() (map[string]string, error) { + state.envOnce.Do(func() { + var b *bytes.Buffer + b, state.goEnvError = state.invokeGo("env", "-json", "GOMOD", "GOPATH") + if state.goEnvError != nil { + return + } + + state.goEnv = make(map[string]string) + decoder := json.NewDecoder(b) + if state.goEnvError = decoder.Decode(&state.goEnv); state.goEnvError != nil { + return + } + }) + return state.goEnv, state.goEnvError } -func determineEnv(cfg *Config) goEnv { - buf, err := invokeGo(cfg, "env", "GOMOD") +// mustGetEnv is a convenience function that can be used if getEnv has already succeeded. +func (state *golistState) mustGetEnv() map[string]string { + env, err := state.getEnv() if err != nil { - return goEnv{} + panic(fmt.Sprintf("mustGetEnv: %v", err)) } - gomod := bytes.TrimSpace(buf.Bytes()) - - env := goEnv{} - env.modulesOn = len(gomod) > 0 return env } @@ -99,47 +123,38 @@ func determineEnv(cfg *Config) goEnv { // the build system package structure. // See driver for more details. func goListDriver(cfg *Config, patterns ...string) (*driverResponse, error) { - var sizes types.Sizes + // Make sure that any asynchronous go commands are killed when we return. + parentCtx := cfg.Context + if parentCtx == nil { + parentCtx = context.Background() + } + ctx, cancel := context.WithCancel(parentCtx) + defer cancel() + + response := newDeduper() + + // Fill in response.Sizes asynchronously if necessary. var sizeserr error var sizeswg sync.WaitGroup if cfg.Mode&NeedTypesSizes != 0 || cfg.Mode&NeedTypes != 0 { sizeswg.Add(1) go func() { - sizes, sizeserr = getSizes(cfg) + var sizes types.Sizes + sizes, sizeserr = packagesdriver.GetSizesGolist(ctx, cfg.BuildFlags, cfg.Env, cfg.Dir, usesExportData(cfg)) + // types.SizesFor always returns nil or a *types.StdSizes. + response.dr.Sizes, _ = sizes.(*types.StdSizes) sizeswg.Done() }() } - defer sizeswg.Wait() - - // start fetching rootDirs - var info goInfo - var rootDirsReady, envReady = make(chan struct{}), make(chan struct{}) - go func() { - info.rootDirs = determineRootDirs(cfg) - close(rootDirsReady) - }() - go func() { - info.env = determineEnv(cfg) - close(envReady) - }() - getGoInfo := func() *goInfo { - <-rootDirsReady - <-envReady - return &info - } - // Ensure that we don't leak goroutines: Load is synchronous, so callers will - // not expect it to access the fields of cfg after the call returns. - defer getGoInfo() - - // always pass getGoInfo to golistDriver - golistDriver := func(cfg *Config, patterns ...string) (*driverResponse, error) { - return golistDriver(cfg, getGoInfo, patterns...) + state := &golistState{ + cfg: cfg, + ctx: ctx, + vendorDirs: map[string]bool{}, } // Determine files requested in contains patterns var containFiles []string - var packagesNamed []string restPatterns := make([]string, 0, len(patterns)) // Extract file= and other [querytype]= patterns. Report an error if querytype // doesn't exist. @@ -155,8 +170,6 @@ extractQueries: containFiles = append(containFiles, value) case "pattern": restPatterns = append(restPatterns, value) - case "iamashamedtousethedisabledqueryname": - packagesNamed = append(packagesNamed, value) case "": // not a reserved query restPatterns = append(restPatterns, pattern) default: @@ -172,52 +185,34 @@ extractQueries: } } - response := &responseDeduper{} - var err error - // See if we have any patterns to pass through to go list. Zero initial // patterns also requires a go list call, since it's the equivalent of // ".". if len(restPatterns) > 0 || len(patterns) == 0 { - dr, err := golistDriver(cfg, restPatterns...) + dr, err := state.createDriverResponse(restPatterns...) if err != nil { return nil, err } - response.init(dr) - } else { - response.init(&driverResponse{}) + response.addAll(dr) } - sizeswg.Wait() - if sizeserr != nil { - return nil, sizeserr - } - // types.SizesFor always returns nil or a *types.StdSizes - response.dr.Sizes, _ = sizes.(*types.StdSizes) - - var containsCandidates []string - if len(containFiles) != 0 { - if err := runContainsQueries(cfg, golistDriver, response, containFiles, getGoInfo); err != nil { - return nil, err - } - } - - if len(packagesNamed) != 0 { - if err := runNamedQueries(cfg, golistDriver, response, packagesNamed); err != nil { + if err := state.runContainsQueries(response, containFiles); err != nil { return nil, err } } - modifiedPkgs, needPkgs, err := processGolistOverlay(cfg, response, getGoInfo) + modifiedPkgs, needPkgs, err := state.processGolistOverlay(response) if err != nil { return nil, err } + + var containsCandidates []string if len(containFiles) > 0 { containsCandidates = append(containsCandidates, modifiedPkgs...) containsCandidates = append(containsCandidates, needPkgs...) } - if err := addNeededOverlayPackages(cfg, golistDriver, response, needPkgs, getGoInfo); err != nil { + if err := state.addNeededOverlayPackages(response, needPkgs); err != nil { return nil, err } // Check candidate packages for containFiles. @@ -246,28 +241,32 @@ extractQueries: } } + sizeswg.Wait() + if sizeserr != nil { + return nil, sizeserr + } return response.dr, nil } -func addNeededOverlayPackages(cfg *Config, driver driver, response *responseDeduper, pkgs []string, getGoInfo func() *goInfo) error { +func (state *golistState) addNeededOverlayPackages(response *responseDeduper, pkgs []string) error { if len(pkgs) == 0 { return nil } - dr, err := driver(cfg, pkgs...) + dr, err := state.createDriverResponse(pkgs...) if err != nil { return err } for _, pkg := range dr.Packages { response.addPackage(pkg) } - _, needPkgs, err := processGolistOverlay(cfg, response, getGoInfo) + _, needPkgs, err := state.processGolistOverlay(response) if err != nil { return err } - return addNeededOverlayPackages(cfg, driver, response, needPkgs, getGoInfo) + return state.addNeededOverlayPackages(response, needPkgs) } -func runContainsQueries(cfg *Config, driver driver, response *responseDeduper, queries []string, goInfo func() *goInfo) error { +func (state *golistState) runContainsQueries(response *responseDeduper, queries []string) error { for _, query := range queries { // TODO(matloob): Do only one query per directory. fdir := filepath.Dir(query) @@ -277,44 +276,17 @@ func runContainsQueries(cfg *Config, driver driver, response *responseDeduper, q if err != nil { return fmt.Errorf("could not determine absolute path of file= query path %q: %v", query, err) } - dirResponse, err := driver(cfg, pattern) - if err != nil || (len(dirResponse.Packages) == 1 && len(dirResponse.Packages[0].Errors) == 1) { - // There was an error loading the package. Try to load the file as an ad-hoc package. - // Usually the error will appear in a returned package, but may not if we're in modules mode - // and the ad-hoc is located outside a module. + dirResponse, err := state.createDriverResponse(pattern) + + // If there was an error loading the package, or the package is returned + // with errors, try to load the file as an ad-hoc package. + // Usually the error will appear in a returned package, but may not if we're + // in module mode and the ad-hoc is located outside a module. + if err != nil || len(dirResponse.Packages) == 1 && len(dirResponse.Packages[0].GoFiles) == 0 && + len(dirResponse.Packages[0].Errors) == 1 { var queryErr error - dirResponse, queryErr = driver(cfg, query) - if queryErr != nil { - // Return the original error if the attempt to fall back failed. - return err - } - // If we get nothing back from `go list`, try to make this file into its own ad-hoc package. - if len(dirResponse.Packages) == 0 && queryErr == nil { - dirResponse.Packages = append(dirResponse.Packages, &Package{ - ID: "command-line-arguments", - PkgPath: query, - GoFiles: []string{query}, - CompiledGoFiles: []string{query}, - Imports: make(map[string]*Package), - }) - dirResponse.Roots = append(dirResponse.Roots, "command-line-arguments") - } - // Special case to handle issue #33482: - // If this is a file= query for ad-hoc packages where the file only exists on an overlay, - // and exists outside of a module, add the file in for the package. - if len(dirResponse.Packages) == 1 && (dirResponse.Packages[0].ID == "command-line-arguments" || - filepath.ToSlash(dirResponse.Packages[0].PkgPath) == filepath.ToSlash(query)) { - if len(dirResponse.Packages[0].GoFiles) == 0 { - filename := filepath.Join(pattern, filepath.Base(query)) // avoid recomputing abspath - // TODO(matloob): check if the file is outside of a root dir? - for path := range cfg.Overlay { - if path == filename { - dirResponse.Packages[0].Errors = nil - dirResponse.Packages[0].GoFiles = []string{path} - dirResponse.Packages[0].CompiledGoFiles = []string{path} - } - } - } + if dirResponse, queryErr = state.adhocPackage(pattern, query); queryErr != nil { + return err // return the original error } } isRoot := make(map[string]bool, len(dirResponse.Roots)) @@ -342,276 +314,47 @@ func runContainsQueries(cfg *Config, driver driver, response *responseDeduper, q return nil } -// modCacheRegexp splits a path in a module cache into module, module version, and package. -var modCacheRegexp = regexp.MustCompile(`(.*)@([^/\\]*)(.*)`) - -func runNamedQueries(cfg *Config, driver driver, response *responseDeduper, queries []string) error { - // calling `go env` isn't free; bail out if there's nothing to do. - if len(queries) == 0 { - return nil - } - // Determine which directories are relevant to scan. - roots, modRoot, err := roots(cfg) - if err != nil { - return err - } - - // Scan the selected directories. Simple matches, from GOPATH/GOROOT - // or the local module, can simply be "go list"ed. Matches from the - // module cache need special treatment. - var matchesMu sync.Mutex - var simpleMatches, modCacheMatches []string - add := func(root gopathwalk.Root, dir string) { - // Walk calls this concurrently; protect the result slices. - matchesMu.Lock() - defer matchesMu.Unlock() - - path := dir - if dir != root.Path { - path = dir[len(root.Path)+1:] - } - if pathMatchesQueries(path, queries) { - switch root.Type { - case gopathwalk.RootModuleCache: - modCacheMatches = append(modCacheMatches, path) - case gopathwalk.RootCurrentModule: - // We'd need to read go.mod to find the full - // import path. Relative's easier. - rel, err := filepath.Rel(cfg.Dir, dir) - if err != nil { - // This ought to be impossible, since - // we found dir in the current module. - panic(err) - } - simpleMatches = append(simpleMatches, "./"+rel) - case gopathwalk.RootGOPATH, gopathwalk.RootGOROOT: - simpleMatches = append(simpleMatches, path) - } - } - } - - startWalk := time.Now() - gopathwalk.Walk(roots, add, gopathwalk.Options{ModulesEnabled: modRoot != "", Debug: debug}) - cfg.Logf("%v for walk", time.Since(startWalk)) - - // Weird special case: the top-level package in a module will be in - // whatever directory the user checked the repository out into. It's - // more reasonable for that to not match the package name. So, if there - // are any Go files in the mod root, query it just to be safe. - if modRoot != "" { - rel, err := filepath.Rel(cfg.Dir, modRoot) - if err != nil { - panic(err) // See above. - } - - files, err := ioutil.ReadDir(modRoot) - if err != nil { - panic(err) // See above. - } - - for _, f := range files { - if strings.HasSuffix(f.Name(), ".go") { - simpleMatches = append(simpleMatches, rel) - break - } - } - } - - addResponse := func(r *driverResponse) { - for _, pkg := range r.Packages { - response.addPackage(pkg) - for _, name := range queries { - if pkg.Name == name { - response.addRoot(pkg.ID) - break - } - } - } - } - - if len(simpleMatches) != 0 { - resp, err := driver(cfg, simpleMatches...) - if err != nil { - return err - } - addResponse(resp) - } - - // Module cache matches are tricky. We want to avoid downloading new - // versions of things, so we need to use the ones present in the cache. - // go list doesn't accept version specifiers, so we have to write out a - // temporary module, and do the list in that module. - if len(modCacheMatches) != 0 { - // Collect all the matches, deduplicating by major version - // and preferring the newest. - type modInfo struct { - mod string - major string - } - mods := make(map[modInfo]string) - var imports []string - for _, modPath := range modCacheMatches { - matches := modCacheRegexp.FindStringSubmatch(modPath) - mod, ver := filepath.ToSlash(matches[1]), matches[2] - importPath := filepath.ToSlash(filepath.Join(matches[1], matches[3])) - - major := semver.Major(ver) - if prevVer, ok := mods[modInfo{mod, major}]; !ok || semver.Compare(ver, prevVer) > 0 { - mods[modInfo{mod, major}] = ver - } - - imports = append(imports, importPath) - } - - // Build the temporary module. - var gomod bytes.Buffer - gomod.WriteString("module modquery\nrequire (\n") - for mod, version := range mods { - gomod.WriteString("\t" + mod.mod + " " + version + "\n") - } - gomod.WriteString(")\n") - - tmpCfg := *cfg - - // We're only trying to look at stuff in the module cache, so - // disable the network. This should speed things up, and has - // prevented errors in at least one case, #28518. - tmpCfg.Env = append([]string{"GOPROXY=off"}, cfg.Env...) - - var err error - tmpCfg.Dir, err = ioutil.TempDir("", "gopackages-modquery") - if err != nil { - return err - } - defer os.RemoveAll(tmpCfg.Dir) - - if err := ioutil.WriteFile(filepath.Join(tmpCfg.Dir, "go.mod"), gomod.Bytes(), 0777); err != nil { - return fmt.Errorf("writing go.mod for module cache query: %v", err) - } - - // Run the query, using the import paths calculated from the matches above. - resp, err := driver(&tmpCfg, imports...) - if err != nil { - return fmt.Errorf("querying module cache matches: %v", err) - } - addResponse(resp) - } - - return nil -} - -func getSizes(cfg *Config) (types.Sizes, error) { - return packagesdriver.GetSizesGolist(cfg.Context, cfg.BuildFlags, cfg.Env, cfg.Dir, usesExportData(cfg)) -} - -// roots selects the appropriate paths to walk based on the passed-in configuration, -// particularly the environment and the presence of a go.mod in cfg.Dir's parents. -func roots(cfg *Config) ([]gopathwalk.Root, string, error) { - stdout, err := invokeGo(cfg, "env", "GOROOT", "GOPATH", "GOMOD") +// adhocPackage attempts to load or construct an ad-hoc package for a given +// query, if the original call to the driver produced inadequate results. +func (state *golistState) adhocPackage(pattern, query string) (*driverResponse, error) { + response, err := state.createDriverResponse(query) if err != nil { - return nil, "", err - } - - fields := strings.Split(stdout.String(), "\n") - if len(fields) != 4 || len(fields[3]) != 0 { - return nil, "", fmt.Errorf("go env returned unexpected output: %q", stdout.String()) - } - goroot, gopath, gomod := fields[0], filepath.SplitList(fields[1]), fields[2] - var modDir string - if gomod != "" { - modDir = filepath.Dir(gomod) + return nil, err } - - var roots []gopathwalk.Root - // Always add GOROOT. - roots = append(roots, gopathwalk.Root{ - Path: filepath.Join(goroot, "/src"), - Type: gopathwalk.RootGOROOT, - }) - // If modules are enabled, scan the module dir. - if modDir != "" { - roots = append(roots, gopathwalk.Root{ - Path: modDir, - Type: gopathwalk.RootCurrentModule, + // If we get nothing back from `go list`, + // try to make this file into its own ad-hoc package. + // TODO(rstambler): Should this check against the original response? + if len(response.Packages) == 0 { + response.Packages = append(response.Packages, &Package{ + ID: "command-line-arguments", + PkgPath: query, + GoFiles: []string{query}, + CompiledGoFiles: []string{query}, + Imports: make(map[string]*Package), }) - } - // Add either GOPATH/src or GOPATH/pkg/mod, depending on module mode. - for _, p := range gopath { - if modDir != "" { - roots = append(roots, gopathwalk.Root{ - Path: filepath.Join(p, "/pkg/mod"), - Type: gopathwalk.RootModuleCache, - }) - } else { - roots = append(roots, gopathwalk.Root{ - Path: filepath.Join(p, "/src"), - Type: gopathwalk.RootGOPATH, - }) - } - } - - return roots, modDir, nil -} - -// These functions were copied from goimports. See further documentation there. - -// pathMatchesQueries is adapted from pkgIsCandidate. -// TODO: is it reasonable to do Contains here, rather than an exact match on a path component? -func pathMatchesQueries(path string, queries []string) bool { - lastTwo := lastTwoComponents(path) - for _, query := range queries { - if strings.Contains(lastTwo, query) { - return true - } - if hasHyphenOrUpperASCII(lastTwo) && !hasHyphenOrUpperASCII(query) { - lastTwo = lowerASCIIAndRemoveHyphen(lastTwo) - if strings.Contains(lastTwo, query) { - return true - } - } - } - return false -} - -// lastTwoComponents returns at most the last two path components -// of v, using either / or \ as the path separator. -func lastTwoComponents(v string) string { - nslash := 0 - for i := len(v) - 1; i >= 0; i-- { - if v[i] == '/' || v[i] == '\\' { - nslash++ - if nslash == 2 { - return v[i:] + response.Roots = append(response.Roots, "command-line-arguments") + } + // Handle special cases. + if len(response.Packages) == 1 { + // golang/go#33482: If this is a file= query for ad-hoc packages where + // the file only exists on an overlay, and exists outside of a module, + // add the file to the package and remove the errors. + if response.Packages[0].ID == "command-line-arguments" || + filepath.ToSlash(response.Packages[0].PkgPath) == filepath.ToSlash(query) { + if len(response.Packages[0].GoFiles) == 0 { + filename := filepath.Join(pattern, filepath.Base(query)) // avoid recomputing abspath + // TODO(matloob): check if the file is outside of a root dir? + for path := range state.cfg.Overlay { + if path == filename { + response.Packages[0].Errors = nil + response.Packages[0].GoFiles = []string{path} + response.Packages[0].CompiledGoFiles = []string{path} + } + } } } } - return v -} - -func hasHyphenOrUpperASCII(s string) bool { - for i := 0; i < len(s); i++ { - b := s[i] - if b == '-' || ('A' <= b && b <= 'Z') { - return true - } - } - return false -} - -func lowerASCIIAndRemoveHyphen(s string) (ret string) { - buf := make([]byte, 0, len(s)) - for i := 0; i < len(s); i++ { - b := s[i] - switch { - case b == '-': - continue - case 'A' <= b && b <= 'Z': - buf = append(buf, b+('a'-'A')) - default: - buf = append(buf, b) - } - } - return string(buf) + return response, nil } // Fields must match go list; @@ -656,10 +399,9 @@ func otherFiles(p *jsonPackage) [][]string { return [][]string{p.CFiles, p.CXXFiles, p.MFiles, p.HFiles, p.FFiles, p.SFiles, p.SwigFiles, p.SwigCXXFiles, p.SysoFiles} } -// golistDriver uses the "go list" command to expand the pattern -// words and return metadata for the specified packages. dir may be -// "" and env may be nil, as per os/exec.Command. -func golistDriver(cfg *Config, rootsDirs func() *goInfo, words ...string) (*driverResponse, error) { +// createDriverResponse uses the "go list" command to expand the pattern +// words and return a response for the specified packages. +func (state *golistState) createDriverResponse(words ...string) (*driverResponse, error) { // go list uses the following identifiers in ImportPath and Imports: // // "p" -- importable package or main (command) @@ -673,7 +415,7 @@ func golistDriver(cfg *Config, rootsDirs func() *goInfo, words ...string) (*driv // Run "go list" for complete // information on the specified packages. - buf, err := invokeGo(cfg, golistargs(cfg, words)...) + buf, err := state.invokeGo("list", golistargs(state.cfg, words)...) if err != nil { return nil, err } @@ -708,7 +450,10 @@ func golistDriver(cfg *Config, rootsDirs func() *goInfo, words ...string) (*driv // contained in a known module or GOPATH entry. This will allow the package to be // properly "reclaimed" when overlays are processed. if filepath.IsAbs(p.ImportPath) && p.Error != nil { - pkgPath, ok := getPkgPath(cfg, p.ImportPath, rootsDirs) + pkgPath, ok, err := state.getPkgPath(p.ImportPath) + if err != nil { + return nil, err + } if ok { p.ImportPath = pkgPath } @@ -729,6 +474,7 @@ func golistDriver(cfg *Config, rootsDirs func() *goInfo, words ...string) (*driv GoFiles: absJoin(p.Dir, p.GoFiles, p.CgoFiles), CompiledGoFiles: absJoin(p.Dir, p.CompiledGoFiles), OtherFiles: absJoin(p.Dir, otherFiles(p)...), + forTest: p.ForTest, } // Work around https://golang.org/issue/28749: @@ -811,8 +557,9 @@ func golistDriver(cfg *Config, rootsDirs func() *goInfo, words ...string) (*driv msg += fmt.Sprintf(": import stack: %v", p.Error.ImportStack) } pkg.Errors = append(pkg.Errors, Error{ - Pos: p.Error.Pos, - Msg: msg, + Pos: p.Error.Pos, + Msg: msg, + Kind: ListError, }) } @@ -823,22 +570,20 @@ func golistDriver(cfg *Config, rootsDirs func() *goInfo, words ...string) (*driv } // getPkgPath finds the package path of a directory if it's relative to a root directory. -func getPkgPath(cfg *Config, dir string, goInfo func() *goInfo) (string, bool) { +func (state *golistState) getPkgPath(dir string) (string, bool, error) { absDir, err := filepath.Abs(dir) if err != nil { - cfg.Logf("error getting absolute path of %s: %v", dir, err) - return "", false + return "", false, err } - for rdir, rpath := range goInfo().rootDirs { - absRdir, err := filepath.Abs(rdir) - if err != nil { - cfg.Logf("error getting absolute path of %s: %v", rdir, err) - continue - } + roots, err := state.determineRootDirs() + if err != nil { + return "", false, err + } + + for rdir, rpath := range roots { // Make sure that the directory is in the module, // to avoid creating a path relative to another module. - if !strings.HasPrefix(absDir, absRdir) { - cfg.Logf("%s does not have prefix %s", absDir, absRdir) + if !strings.HasPrefix(absDir, rdir) { continue } // TODO(matloob): This doesn't properly handle symlinks. @@ -853,11 +598,11 @@ func getPkgPath(cfg *Config, dir string, goInfo func() *goInfo) (string, bool) { // Once the file is saved, gopls, or the next invocation of the tool will get the correct // result straight from golist. // TODO(matloob): Implement module tiebreaking? - return path.Join(rpath, filepath.ToSlash(r)), true + return path.Join(rpath, filepath.ToSlash(r)), true, nil } - return filepath.ToSlash(r), true + return filepath.ToSlash(r), true, nil } - return "", false + return "", false, nil } // absJoin absolutizes and flattens the lists of files. @@ -876,8 +621,8 @@ func absJoin(dir string, fileses ...[]string) (res []string) { func golistargs(cfg *Config, words []string) []string { const findFlags = NeedImports | NeedTypes | NeedSyntax | NeedTypesInfo fullargs := []string{ - "list", "-e", "-json", - fmt.Sprintf("-compiled=%t", cfg.Mode&(NeedCompiledGoFiles|NeedSyntax|NeedTypesInfo|NeedTypesSizes) != 0), + "-e", "-json", + fmt.Sprintf("-compiled=%t", cfg.Mode&(NeedCompiledGoFiles|NeedSyntax|NeedTypes|NeedTypesInfo|NeedTypesSizes) != 0), fmt.Sprintf("-test=%t", cfg.Tests), fmt.Sprintf("-export=%t", usesExportData(cfg)), fmt.Sprintf("-deps=%t", cfg.Mode&NeedImports != 0), @@ -892,10 +637,17 @@ func golistargs(cfg *Config, words []string) []string { } // invokeGo returns the stdout of a go command invocation. -func invokeGo(cfg *Config, args ...string) (*bytes.Buffer, error) { +func (state *golistState) invokeGo(verb string, args ...string) (*bytes.Buffer, error) { + cfg := state.cfg + stdout := new(bytes.Buffer) stderr := new(bytes.Buffer) - cmd := exec.CommandContext(cfg.Context, "go", args...) + goArgs := []string{verb} + if verb != "env" { + goArgs = append(goArgs, cfg.BuildFlags...) + } + goArgs = append(goArgs, args...) + cmd := exec.CommandContext(state.ctx, "go", goArgs...) // On darwin the cwd gets resolved to the real path, which breaks anything that // expects the working directory to keep the original path, including the // go command when dealing with modules. @@ -907,7 +659,7 @@ func invokeGo(cfg *Config, args ...string) (*bytes.Buffer, error) { cmd.Stdout = stdout cmd.Stderr = stderr defer func(start time.Time) { - cfg.Logf("%s for %v, stderr: <<%s>> stdout: <<%s>>\n", time.Since(start), cmdDebugStr(cmd, args...), stderr, stdout) + cfg.Logf("%s for %v, stderr: <<%s>> stdout: <<%s>>\n", time.Since(start), cmdDebugStr(cmd, goArgs...), stderr, stdout) }(time.Now()) if err := cmd.Run(); err != nil { diff --git a/vendor/golang.org/x/tools/go/packages/golist_overlay.go b/vendor/golang.org/x/tools/go/packages/golist_overlay.go index a7de62299..c6925c87b 100644 --- a/vendor/golang.org/x/tools/go/packages/golist_overlay.go +++ b/vendor/golang.org/x/tools/go/packages/golist_overlay.go @@ -1,11 +1,11 @@ package packages import ( - "bytes" "encoding/json" "fmt" "go/parser" "go/token" + "os" "path/filepath" "strconv" "strings" @@ -16,7 +16,7 @@ import ( // sometimes incorrect. // TODO(matloob): Handle unsupported cases, including the following: // - determining the correct package to add given a new import path -func processGolistOverlay(cfg *Config, response *responseDeduper, rootDirs func() *goInfo) (modifiedPkgs, needPkgs []string, err error) { +func (state *golistState) processGolistOverlay(response *responseDeduper) (modifiedPkgs, needPkgs []string, err error) { havePkgs := make(map[string]string) // importPath -> non-test package ID needPkgsSet := make(map[string]bool) modifiedPkgsSet := make(map[string]bool) @@ -34,7 +34,7 @@ func processGolistOverlay(cfg *Config, response *responseDeduper, rootDirs func( // potentially modifying the transitive set of dependencies). var overlayAddsImports bool - for opath, contents := range cfg.Overlay { + for opath, contents := range state.cfg.Overlay { base := filepath.Base(opath) dir := filepath.Dir(opath) var pkg *Package // if opath belongs to both a package and its test variant, this will be the test variant @@ -86,7 +86,10 @@ func processGolistOverlay(cfg *Config, response *responseDeduper, rootDirs func( if pkg == nil { // Try to find the module or gopath dir the file is contained in. // Then for modules, add the module opath to the beginning. - pkgPath, ok := getPkgPath(cfg, dir, rootDirs) + pkgPath, ok, err := state.getPkgPath(dir) + if err != nil { + return nil, nil, err + } if !ok { break } @@ -114,6 +117,11 @@ func processGolistOverlay(cfg *Config, response *responseDeduper, rootDirs func( if isTestFile && !isXTest && testVariantOf != nil { pkg.GoFiles = append(pkg.GoFiles, testVariantOf.GoFiles...) pkg.CompiledGoFiles = append(pkg.CompiledGoFiles, testVariantOf.CompiledGoFiles...) + // Add the package under test and its imports to the test variant. + pkg.forTest = testVariantOf.PkgPath + for k, v := range testVariantOf.Imports { + pkg.Imports[k] = &Package{ID: v.ID} + } } } } @@ -130,42 +138,45 @@ func processGolistOverlay(cfg *Config, response *responseDeduper, rootDirs func( continue } for _, imp := range imports { - _, found := pkg.Imports[imp] - if !found { - overlayAddsImports = true - // TODO(matloob): Handle cases when the following block isn't correct. - // These include imports of vendored packages, etc. - id, ok := havePkgs[imp] - if !ok { - id = imp - } - pkg.Imports[imp] = &Package{ID: id} - // Add dependencies to the non-test variant version of this package as wel. - if testVariantOf != nil { - testVariantOf.Imports[imp] = &Package{ID: id} + if _, found := pkg.Imports[imp]; found { + continue + } + overlayAddsImports = true + id, ok := havePkgs[imp] + if !ok { + var err error + id, err = state.resolveImport(dir, imp) + if err != nil { + return nil, nil, err } } + pkg.Imports[imp] = &Package{ID: id} + // Add dependencies to the non-test variant version of this package as well. + if testVariantOf != nil { + testVariantOf.Imports[imp] = &Package{ID: id} + } } - continue } - // toPkgPath tries to guess the package path given the id. - // This isn't always correct -- it's certainly wrong for - // vendored packages' paths. - toPkgPath := func(id string) string { - // TODO(matloob): Handle vendor paths. - i := strings.IndexByte(id, ' ') - if i >= 0 { - return id[:i] + // toPkgPath guesses the package path given the id. + toPkgPath := func(sourceDir, id string) (string, error) { + if i := strings.IndexByte(id, ' '); i >= 0 { + return state.resolveImport(sourceDir, id[:i]) } - return id + return state.resolveImport(sourceDir, id) } - // Do another pass now that new packages have been created to determine the - // set of missing packages. + // Now that new packages have been created, do another pass to determine + // the new set of missing packages. for _, pkg := range response.dr.Packages { for _, imp := range pkg.Imports { - pkgPath := toPkgPath(imp.ID) + if len(pkg.GoFiles) == 0 { + return nil, nil, fmt.Errorf("cannot resolve imports for package %q with no Go files", pkg.PkgPath) + } + pkgPath, err := toPkgPath(filepath.Dir(pkg.GoFiles[0]), imp.ID) + if err != nil { + return nil, nil, err + } if _, ok := havePkgs[pkgPath]; !ok { needPkgsSet[pkgPath] = true } @@ -185,6 +196,52 @@ func processGolistOverlay(cfg *Config, response *responseDeduper, rootDirs func( return modifiedPkgs, needPkgs, err } +// resolveImport finds the the ID of a package given its import path. +// In particular, it will find the right vendored copy when in GOPATH mode. +func (state *golistState) resolveImport(sourceDir, importPath string) (string, error) { + env, err := state.getEnv() + if err != nil { + return "", err + } + if env["GOMOD"] != "" { + return importPath, nil + } + + searchDir := sourceDir + for { + vendorDir := filepath.Join(searchDir, "vendor") + exists, ok := state.vendorDirs[vendorDir] + if !ok { + info, err := os.Stat(vendorDir) + exists = err == nil && info.IsDir() + state.vendorDirs[vendorDir] = exists + } + + if exists { + vendoredPath := filepath.Join(vendorDir, importPath) + if info, err := os.Stat(vendoredPath); err == nil && info.IsDir() { + // We should probably check for .go files here, but shame on anyone who fools us. + path, ok, err := state.getPkgPath(vendoredPath) + if err != nil { + return "", err + } + if ok { + return path, nil + } + } + } + + // We know we've hit the top of the filesystem when we Dir / and get /, + // or C:\ and get C:\, etc. + next := filepath.Dir(searchDir) + if next == searchDir { + break + } + searchDir = next + } + return importPath, nil +} + func hasTestFiles(p *Package) bool { for _, f := range p.GoFiles { if strings.HasSuffix(f, "_test.go") { @@ -194,44 +251,59 @@ func hasTestFiles(p *Package) bool { return false } -// determineRootDirs returns a mapping from directories code can be contained in to the -// corresponding import path prefixes of those directories. -// Its result is used to try to determine the import path for a package containing -// an overlay file. -func determineRootDirs(cfg *Config) map[string]string { - // Assume modules first: - out, err := invokeGo(cfg, "list", "-m", "-json", "all") +// determineRootDirs returns a mapping from absolute directories that could +// contain code to their corresponding import path prefixes. +func (state *golistState) determineRootDirs() (map[string]string, error) { + env, err := state.getEnv() if err != nil { - return determineRootDirsGOPATH(cfg) + return nil, err + } + if env["GOMOD"] != "" { + state.rootsOnce.Do(func() { + state.rootDirs, state.rootDirsError = state.determineRootDirsModules() + }) + } else { + state.rootsOnce.Do(func() { + state.rootDirs, state.rootDirsError = state.determineRootDirsGOPATH() + }) + } + return state.rootDirs, state.rootDirsError +} + +func (state *golistState) determineRootDirsModules() (map[string]string, error) { + out, err := state.invokeGo("list", "-m", "-json", "all") + if err != nil { + return nil, err } m := map[string]string{} type jsonMod struct{ Path, Dir string } for dec := json.NewDecoder(out); dec.More(); { mod := new(jsonMod) if err := dec.Decode(mod); err != nil { - return m // Give up and return an empty map. Package won't be found for overlay. + return nil, err } if mod.Dir != "" && mod.Path != "" { // This is a valid module; add it to the map. - m[mod.Dir] = mod.Path + absDir, err := filepath.Abs(mod.Dir) + if err != nil { + return nil, err + } + m[absDir] = mod.Path } } - return m + return m, nil } -func determineRootDirsGOPATH(cfg *Config) map[string]string { +func (state *golistState) determineRootDirsGOPATH() (map[string]string, error) { m := map[string]string{} - out, err := invokeGo(cfg, "env", "GOPATH") - if err != nil { - // Could not determine root dir mapping. Everything is best-effort, so just return an empty map. - // When we try to find the import path for a directory, there will be no root-dir match and - // we'll give up. - return m - } - for _, p := range filepath.SplitList(string(bytes.TrimSpace(out.Bytes()))) { - m[filepath.Join(p, "src")] = "" + for _, dir := range filepath.SplitList(state.mustGetEnv()["GOPATH"]) { + absDir, err := filepath.Abs(dir) + if err != nil { + return nil, err + } + m[filepath.Join(absDir, "src")] = "" } - return m + return m, nil } func extractImports(filename string, contents []byte) ([]string, error) { diff --git a/vendor/golang.org/x/tools/go/packages/packages.go b/vendor/golang.org/x/tools/go/packages/packages.go index 050cca43a..586c714f6 100644 --- a/vendor/golang.org/x/tools/go/packages/packages.go +++ b/vendor/golang.org/x/tools/go/packages/packages.go @@ -23,6 +23,7 @@ import ( "sync" "golang.org/x/tools/go/gcexportdata" + "golang.org/x/tools/internal/packagesinternal" ) // A LoadMode controls the amount of detail to return when loading. @@ -34,6 +35,9 @@ import ( // Load may return more information than requested. type LoadMode int +// TODO(matloob): When a V2 of go/packages is released, rename NeedExportsFile to +// NeedExportFile to make it consistent with the Package field it's adding. + const ( // NeedName adds Name and PkgPath. NeedName LoadMode = 1 << iota @@ -51,7 +55,7 @@ const ( // NeedDeps adds the fields requested by the LoadMode in the packages in Imports. NeedDeps - // NeedExportsFile adds ExportsFile. + // NeedExportsFile adds ExportFile. NeedExportsFile // NeedTypes adds Types, Fset, and IllTyped. @@ -160,7 +164,7 @@ type Config struct { Tests bool // Overlay provides a mapping of absolute file paths to file contents. - // If the file with the given path already exists, the parser will use the + // If the file with the given path already exists, the parser will use the // alternative file contents provided by the map. // // Overlays provide incomplete support for when a given file doesn't @@ -292,6 +296,15 @@ type Package struct { // TypesSizes provides the effective size function for types in TypesInfo. TypesSizes types.Sizes + + // forTest is the package under test, if any. + forTest string +} + +func init() { + packagesinternal.GetForTest = func(p interface{}) string { + return p.(*Package).forTest + } } // An Error describes a problem with a package's metadata, syntax, or types. @@ -500,12 +513,23 @@ func (ld *loader) refine(roots []string, list ...*Package) ([]*Package, error) { if i, found := rootMap[pkg.ID]; found { rootIndex = i } + + // Overlays can invalidate export data. + // TODO(matloob): make this check fine-grained based on dependencies on overlaid files + exportDataInvalid := len(ld.Overlay) > 0 || pkg.ExportFile == "" && pkg.PkgPath != "unsafe" + // This package needs type information if the caller requested types and the package is + // either a root, or it's a non-root and the user requested dependencies ... + needtypes := (ld.Mode&NeedTypes|NeedTypesInfo != 0 && (rootIndex >= 0 || ld.Mode&NeedDeps != 0)) + // This package needs source if the call requested source (or types info, which implies source) + // and the package is either a root, or itas a non- root and the user requested dependencies... + needsrc := ((ld.Mode&(NeedSyntax|NeedTypesInfo) != 0 && (rootIndex >= 0 || ld.Mode&NeedDeps != 0)) || + // ... or if we need types and the exportData is invalid. We fall back to (incompletely) + // typechecking packages from source if they fail to compile. + (ld.Mode&NeedTypes|NeedTypesInfo != 0 && exportDataInvalid)) && pkg.PkgPath != "unsafe" lpkg := &loaderPackage{ Package: pkg, - needtypes: (ld.Mode&(NeedTypes|NeedTypesInfo) != 0 && ld.Mode&NeedDeps != 0 && rootIndex < 0) || rootIndex >= 0, - needsrc: (ld.Mode&(NeedSyntax|NeedTypesInfo) != 0 && ld.Mode&NeedDeps != 0 && rootIndex < 0) || rootIndex >= 0 || - len(ld.Overlay) > 0 || // Overlays can invalidate export data. TODO(matloob): make this check fine-grained based on dependencies on overlaid files - pkg.ExportFile == "" && pkg.PkgPath != "unsafe", + needtypes: needtypes, + needsrc: needsrc, } ld.pkgs[lpkg.ID] = lpkg if rootIndex >= 0 { @@ -713,7 +737,7 @@ func (ld *loader) loadPackage(lpkg *loaderPackage) { // which would then require that such created packages be explicitly // inserted back into the Import graph as a final step after export data loading. // The Diamond test exercises this case. - if !lpkg.needtypes { + if !lpkg.needtypes && !lpkg.needsrc { return } if !lpkg.needsrc { diff --git a/vendor/golang.org/x/tools/go/types/typeutil/map.go b/vendor/golang.org/x/tools/go/types/typeutil/map.go index eb63ea22c..c7f754500 100644 --- a/vendor/golang.org/x/tools/go/types/typeutil/map.go +++ b/vendor/golang.org/x/tools/go/types/typeutil/map.go @@ -4,7 +4,7 @@ // Package typeutil defines various utilities for types, such as Map, // a mapping from types.Type to interface{} values. -package typeutil +package typeutil // import "golang.org/x/tools/go/types/typeutil" import ( "bytes" diff --git a/vendor/golang.org/x/tools/internal/imports/fix.go b/vendor/golang.org/x/tools/internal/imports/fix.go index f531024da..ac8f6b153 100644 --- a/vendor/golang.org/x/tools/internal/imports/fix.go +++ b/vendor/golang.org/x/tools/internal/imports/fix.go @@ -27,7 +27,6 @@ import ( "unicode/utf8" "golang.org/x/tools/go/ast/astutil" - "golang.org/x/tools/go/packages" "golang.org/x/tools/internal/gopathwalk" ) @@ -82,7 +81,8 @@ type ImportFix struct { // IdentName is the identifier that this fix will add or remove. IdentName string // FixType is the type of fix this is (AddImport, DeleteImport, SetImportName). - FixType ImportFixType + FixType ImportFixType + Relevance int // see pkg } // An ImportInfo represents a single import statement. @@ -585,62 +585,86 @@ func getFixes(fset *token.FileSet, f *ast.File, filename string, env *ProcessEnv return fixes, nil } -// getCandidatePkgs returns the list of pkgs that are accessible from filename, -// optionall filtered to only packages named pkgName. -func getCandidatePkgs(pkgName, filename string, env *ProcessEnv) ([]*pkg, error) { - // TODO(heschi): filter out current package. (Don't forget x_test can import x.) +// Highest relevance, used for the standard library. Chosen arbitrarily to +// match pre-existing gopls code. +const MaxRelevance = 7 - var result []*pkg +// getCandidatePkgs works with the passed callback to find all acceptable packages. +// It deduplicates by import path, and uses a cached stdlib rather than reading +// from disk. +func getCandidatePkgs(ctx context.Context, wrappedCallback *scanCallback, filename, filePkg string, env *ProcessEnv) error { + notSelf := func(p *pkg) bool { + return p.packageName != filePkg || p.dir != filepath.Dir(filename) + } // Start off with the standard library. - for importPath := range stdlib { - if pkgName != "" && path.Base(importPath) != pkgName { - continue - } - result = append(result, &pkg{ + for importPath, exports := range stdlib { + p := &pkg{ dir: filepath.Join(env.GOROOT, "src", importPath), importPathShort: importPath, packageName: path.Base(importPath), - relevance: 0, - }) - } - - // Exclude goroot results -- getting them is relatively expensive, not cached, - // and generally redundant with the in-memory version. - exclude := []gopathwalk.RootType{gopathwalk.RootGOROOT} - // Only the go/packages resolver uses the first argument, and nobody uses that resolver. - scannedPkgs, err := env.GetResolver().scan(nil, true, exclude) - if err != nil { - return nil, err + relevance: MaxRelevance, + } + if notSelf(p) && wrappedCallback.packageNameLoaded(p) { + wrappedCallback.exportsLoaded(p, exports) + } } + var mu sync.Mutex dupCheck := map[string]struct{}{} - for _, pkg := range scannedPkgs { - if pkgName != "" && pkg.packageName != pkgName { - continue - } - if !canUse(filename, pkg.dir) { - continue - } - if _, ok := dupCheck[pkg.importPathShort]; ok { - continue - } - dupCheck[pkg.importPathShort] = struct{}{} - result = append(result, pkg) + + scanFilter := &scanCallback{ + rootFound: func(root gopathwalk.Root) bool { + // Exclude goroot results -- getting them is relatively expensive, not cached, + // and generally redundant with the in-memory version. + return root.Type != gopathwalk.RootGOROOT && wrappedCallback.rootFound(root) + }, + dirFound: wrappedCallback.dirFound, + packageNameLoaded: func(pkg *pkg) bool { + mu.Lock() + defer mu.Unlock() + if _, ok := dupCheck[pkg.importPathShort]; ok { + return false + } + dupCheck[pkg.importPathShort] = struct{}{} + return notSelf(pkg) && wrappedCallback.packageNameLoaded(pkg) + }, + exportsLoaded: func(pkg *pkg, exports []string) { + // If we're an x_test, load the package under test's test variant. + if strings.HasSuffix(filePkg, "_test") && pkg.dir == filepath.Dir(filename) { + var err error + _, exports, err = loadExportsFromFiles(ctx, env, pkg.dir, true) + if err != nil { + return + } + } + wrappedCallback.exportsLoaded(pkg, exports) + }, } + return env.GetResolver().scan(ctx, scanFilter) +} - // Sort first by relevance, then by package name, with import path as a tiebreaker. - sort.Slice(result, func(i, j int) bool { - pi, pj := result[i], result[j] - if pi.relevance != pj.relevance { - return pi.relevance < pj.relevance - } - if pi.packageName != pj.packageName { - return pi.packageName < pj.packageName - } - return pi.importPathShort < pj.importPathShort - }) +func ScoreImportPaths(ctx context.Context, env *ProcessEnv, paths []string) map[string]int { + result := make(map[string]int) + for _, path := range paths { + result[path] = env.GetResolver().scoreImportPath(ctx, path) + } + return result +} - return result, nil +func PrimeCache(ctx context.Context, env *ProcessEnv) error { + // Fully scan the disk for directories, but don't actually read any Go files. + callback := &scanCallback{ + rootFound: func(gopathwalk.Root) bool { + return true + }, + dirFound: func(pkg *pkg) bool { + return false + }, + packageNameLoaded: func(pkg *pkg) bool { + return false + }, + } + return getCandidatePkgs(ctx, callback, "", "", env) } func candidateImportName(pkg *pkg) string { @@ -651,23 +675,37 @@ func candidateImportName(pkg *pkg) string { } // getAllCandidates gets all of the candidates to be imported, regardless of if they are needed. -func getAllCandidates(filename string, env *ProcessEnv) ([]ImportFix, error) { - pkgs, err := getCandidatePkgs("", filename, env) - if err != nil { - return nil, err - } - result := make([]ImportFix, 0, len(pkgs)) - for _, pkg := range pkgs { - result = append(result, ImportFix{ - StmtInfo: ImportInfo{ - ImportPath: pkg.importPathShort, - Name: candidateImportName(pkg), - }, - IdentName: pkg.packageName, - FixType: AddImport, - }) +func getAllCandidates(ctx context.Context, wrapped func(ImportFix), searchPrefix, filename, filePkg string, env *ProcessEnv) error { + callback := &scanCallback{ + rootFound: func(gopathwalk.Root) bool { + return true + }, + dirFound: func(pkg *pkg) bool { + if !canUse(filename, pkg.dir) { + return false + } + // Try the assumed package name first, then a simpler path match + // in case of packages named vN, which are not uncommon. + return strings.HasPrefix(ImportPathToAssumedName(pkg.importPathShort), searchPrefix) || + strings.HasPrefix(path.Base(pkg.importPathShort), searchPrefix) + }, + packageNameLoaded: func(pkg *pkg) bool { + if !strings.HasPrefix(pkg.packageName, searchPrefix) { + return false + } + wrapped(ImportFix{ + StmtInfo: ImportInfo{ + ImportPath: pkg.importPathShort, + Name: candidateImportName(pkg), + }, + IdentName: pkg.packageName, + FixType: AddImport, + Relevance: pkg.relevance, + }) + return false + }, } - return result, nil + return getCandidatePkgs(ctx, callback, filename, filePkg, env) } // A PackageExport is a package and its exports. @@ -676,42 +714,34 @@ type PackageExport struct { Exports []string } -func getPackageExports(completePackage, filename string, env *ProcessEnv) ([]PackageExport, error) { - pkgs, err := getCandidatePkgs(completePackage, filename, env) - if err != nil { - return nil, err - } - - results := make([]PackageExport, 0, len(pkgs)) - for _, pkg := range pkgs { - fix := &ImportFix{ - StmtInfo: ImportInfo{ - ImportPath: pkg.importPathShort, - Name: candidateImportName(pkg), - }, - IdentName: pkg.packageName, - FixType: AddImport, - } - var exports []string - if e, ok := stdlib[pkg.importPathShort]; ok { - exports = e - } else { - exports, err = loadExportsForPackage(context.Background(), env, completePackage, pkg) - if err != nil { - if env.Debug { - env.Logf("while completing %q, error loading exports from %q: %v", completePackage, pkg.importPathShort, err) - } - continue - } - } - sort.Strings(exports) - results = append(results, PackageExport{ - Fix: fix, - Exports: exports, - }) +func getPackageExports(ctx context.Context, wrapped func(PackageExport), searchPkg, filename, filePkg string, env *ProcessEnv) error { + callback := &scanCallback{ + rootFound: func(gopathwalk.Root) bool { + return true + }, + dirFound: func(pkg *pkg) bool { + return pkgIsCandidate(filename, references{searchPkg: nil}, pkg) + }, + packageNameLoaded: func(pkg *pkg) bool { + return pkg.packageName == searchPkg + }, + exportsLoaded: func(pkg *pkg, exports []string) { + sort.Strings(exports) + wrapped(PackageExport{ + Fix: &ImportFix{ + StmtInfo: ImportInfo{ + ImportPath: pkg.importPathShort, + Name: candidateImportName(pkg), + }, + IdentName: pkg.packageName, + FixType: AddImport, + Relevance: pkg.relevance, + }, + Exports: exports, + }) + }, } - - return results, nil + return getCandidatePkgs(ctx, callback, filename, filePkg, env) } // ProcessEnv contains environment variables and settings that affect the use of @@ -725,15 +755,19 @@ type ProcessEnv struct { GOPATH, GOROOT, GO111MODULE, GOPROXY, GOFLAGS, GOSUMDB string WorkingDir string - // If true, use go/packages regardless of the environment. - ForceGoPackages bool - // Logf is the default logger for the ProcessEnv. Logf func(format string, args ...interface{}) resolver Resolver } +// CopyConfig copies the env's configuration into a new env. +func (e *ProcessEnv) CopyConfig() *ProcessEnv { + copy := *e + copy.resolver = nil + return © +} + func (e *ProcessEnv) env() []string { env := os.Environ() add := func(k, v string) { @@ -757,39 +791,34 @@ func (e *ProcessEnv) GetResolver() Resolver { if e.resolver != nil { return e.resolver } - if e.ForceGoPackages { - e.resolver = &goPackagesResolver{env: e} - return e.resolver - } - out, err := e.invokeGo("env", "GOMOD") if err != nil || len(bytes.TrimSpace(out.Bytes())) == 0 { - e.resolver = &gopathResolver{env: e} + e.resolver = newGopathResolver(e) return e.resolver } - e.resolver = &ModuleResolver{env: e} + e.resolver = newModuleResolver(e) return e.resolver } -func (e *ProcessEnv) newPackagesConfig(mode packages.LoadMode) *packages.Config { - return &packages.Config{ - Mode: mode, - Dir: e.WorkingDir, - Env: e.env(), - } -} - func (e *ProcessEnv) buildContext() *build.Context { ctx := build.Default ctx.GOROOT = e.GOROOT ctx.GOPATH = e.GOPATH - // As of Go 1.14, build.Context has a WorkingDir field + // As of Go 1.14, build.Context has a Dir field // (see golang.org/issue/34860). // Populate it only if present. - if wd := reflect.ValueOf(&ctx).Elem().FieldByName("WorkingDir"); wd.IsValid() && wd.Kind() == reflect.String { - wd.SetString(e.WorkingDir) + rc := reflect.ValueOf(&ctx).Elem() + dir := rc.FieldByName("Dir") + if !dir.IsValid() { + // Working drafts of Go 1.14 named the field "WorkingDir" instead. + // TODO(bcmills): Remove this case after the Go 1.14 beta has been released. + dir = rc.FieldByName("WorkingDir") + } + if dir.IsValid() && dir.Kind() == reflect.String { + dir.SetString(e.WorkingDir) } + return &ctx } @@ -848,94 +877,65 @@ func addStdlibCandidates(pass *pass, refs references) { type Resolver interface { // loadPackageNames loads the package names in importPaths. loadPackageNames(importPaths []string, srcDir string) (map[string]string, error) - // scan finds (at least) the packages satisfying refs. If loadNames is true, - // package names will be set on the results, and dirs whose package name - // could not be determined will be excluded. - scan(refs references, loadNames bool, exclude []gopathwalk.RootType) ([]*pkg, error) + // scan works with callback to search for packages. See scanCallback for details. + scan(ctx context.Context, callback *scanCallback) error // loadExports returns the set of exported symbols in the package at dir. // loadExports may be called concurrently. - loadExports(ctx context.Context, pkg *pkg) (string, []string, error) + loadExports(ctx context.Context, pkg *pkg, includeTest bool) (string, []string, error) + // scoreImportPath returns the relevance for an import path. + scoreImportPath(ctx context.Context, path string) int ClearForNewScan() } -// gopackagesResolver implements resolver for GOPATH and module workspaces using go/packages. -type goPackagesResolver struct { - env *ProcessEnv -} - -func (r *goPackagesResolver) ClearForNewScan() {} - -func (r *goPackagesResolver) loadPackageNames(importPaths []string, srcDir string) (map[string]string, error) { - if len(importPaths) == 0 { - return nil, nil - } - cfg := r.env.newPackagesConfig(packages.LoadFiles) - pkgs, err := packages.Load(cfg, importPaths...) - if err != nil { - return nil, err - } - names := map[string]string{} - for _, pkg := range pkgs { - names[VendorlessPath(pkg.PkgPath)] = pkg.Name - } - // We may not have found all the packages. Guess the rest. - for _, path := range importPaths { - if _, ok := names[path]; ok { - continue - } - names[path] = ImportPathToAssumedName(path) - } - return names, nil - -} - -func (r *goPackagesResolver) scan(refs references, _ bool, _ []gopathwalk.RootType) ([]*pkg, error) { - var loadQueries []string - for pkgName := range refs { - loadQueries = append(loadQueries, "iamashamedtousethedisabledqueryname="+pkgName) - } - sort.Strings(loadQueries) - cfg := r.env.newPackagesConfig(packages.LoadFiles) - goPackages, err := packages.Load(cfg, loadQueries...) - if err != nil { - return nil, err - } - - var scan []*pkg - for _, goPackage := range goPackages { - scan = append(scan, &pkg{ - dir: filepath.Dir(goPackage.CompiledGoFiles[0]), - importPathShort: VendorlessPath(goPackage.PkgPath), - goPackage: goPackage, - packageName: goPackage.Name, - }) - } - return scan, nil +// A scanCallback controls a call to scan and receives its results. +// In general, minor errors will be silently discarded; a user should not +// expect to receive a full series of calls for everything. +type scanCallback struct { + // rootFound is called before scanning a new root dir. If it returns true, + // the root will be scanned. Returning false will not necessarily prevent + // directories from that root making it to dirFound. + rootFound func(gopathwalk.Root) bool + // dirFound is called when a directory is found that is possibly a Go package. + // pkg will be populated with everything except packageName. + // If it returns true, the package's name will be loaded. + dirFound func(pkg *pkg) bool + // packageNameLoaded is called when a package is found and its name is loaded. + // If it returns true, the package's exports will be loaded. + packageNameLoaded func(pkg *pkg) bool + // exportsLoaded is called when a package's exports have been loaded. + exportsLoaded func(pkg *pkg, exports []string) } -func (r *goPackagesResolver) loadExports(ctx context.Context, pkg *pkg) (string, []string, error) { - if pkg.goPackage == nil { - return "", nil, fmt.Errorf("goPackage not set") - } - var exports []string - fset := token.NewFileSet() - for _, fname := range pkg.goPackage.CompiledGoFiles { - f, err := parser.ParseFile(fset, fname, nil, 0) - if err != nil { - return "", nil, fmt.Errorf("parsing %s: %v", fname, err) - } - for name := range f.Scope.Objects { - if ast.IsExported(name) { - exports = append(exports, name) +func addExternalCandidates(pass *pass, refs references, filename string) error { + var mu sync.Mutex + found := make(map[string][]pkgDistance) + callback := &scanCallback{ + rootFound: func(gopathwalk.Root) bool { + return true // We want everything. + }, + dirFound: func(pkg *pkg) bool { + return pkgIsCandidate(filename, refs, pkg) + }, + packageNameLoaded: func(pkg *pkg) bool { + if _, want := refs[pkg.packageName]; !want { + return false } - } + if pkg.dir == pass.srcDir && pass.f.Name.Name == pkg.packageName { + // The candidate is in the same directory and has the + // same package name. Don't try to import ourselves. + return false + } + if !canUse(filename, pkg.dir) { + return false + } + mu.Lock() + defer mu.Unlock() + found[pkg.packageName] = append(found[pkg.packageName], pkgDistance{pkg, distance(pass.srcDir, pkg.dir)}) + return false // We'll do our own loading after we sort. + }, } - return pkg.goPackage.Name, exports, nil -} - -func addExternalCandidates(pass *pass, refs references, filename string) error { - dirScan, err := pass.env.GetResolver().scan(refs, false, nil) + err := pass.env.GetResolver().scan(context.Background(), callback) if err != nil { return err } @@ -962,7 +962,7 @@ func addExternalCandidates(pass *pass, refs references, filename string) error { go func(pkgName string, symbols map[string]bool) { defer wg.Done() - found, err := findImport(ctx, pass, dirScan, pkgName, symbols, filename) + found, err := findImport(ctx, pass, found[pkgName], pkgName, symbols, filename) if err != nil { firstErrOnce.Do(func() { @@ -1033,24 +1033,36 @@ func ImportPathToAssumedName(importPath string) string { // gopathResolver implements resolver for GOPATH workspaces. type gopathResolver struct { - env *ProcessEnv - cache *dirInfoCache + env *ProcessEnv + walked bool + cache *dirInfoCache + scanSema chan struct{} // scanSema prevents concurrent scans. } -func (r *gopathResolver) init() { - if r.cache == nil { - r.cache = &dirInfoCache{ - dirs: map[string]*directoryPackageInfo{}, - } +func newGopathResolver(env *ProcessEnv) *gopathResolver { + r := &gopathResolver{ + env: env, + cache: &dirInfoCache{ + dirs: map[string]*directoryPackageInfo{}, + listeners: map[*int]cacheListener{}, + }, + scanSema: make(chan struct{}, 1), } + r.scanSema <- struct{}{} + return r } func (r *gopathResolver) ClearForNewScan() { - r.cache = nil + <-r.scanSema + r.cache = &dirInfoCache{ + dirs: map[string]*directoryPackageInfo{}, + listeners: map[*int]cacheListener{}, + } + r.walked = false + r.scanSema <- struct{}{} } func (r *gopathResolver) loadPackageNames(importPaths []string, srcDir string) (map[string]string, error) { - r.init() names := map[string]string{} for _, path := range importPaths { names[path] = importPathToName(r.env, path, srcDir) @@ -1130,7 +1142,6 @@ func packageDirToName(dir string) (packageName string, err error) { } type pkg struct { - goPackage *packages.Package dir string // absolute file path to pkg directory ("/usr/lib/go/src/net/http") importPathShort string // vendorless import path ("net/http", "a/b") packageName string // package name loaded from source if requested @@ -1178,8 +1189,7 @@ func distance(basepath, targetpath string) int { return strings.Count(p, string(filepath.Separator)) + 1 } -func (r *gopathResolver) scan(_ references, loadNames bool, exclude []gopathwalk.RootType) ([]*pkg, error) { - r.init() +func (r *gopathResolver) scan(ctx context.Context, callback *scanCallback) error { add := func(root gopathwalk.Root, dir string) { // We assume cached directories have not changed. We can skip them and their // children. @@ -1196,56 +1206,84 @@ func (r *gopathResolver) scan(_ references, loadNames bool, exclude []gopathwalk } r.cache.Store(dir, info) } - roots := filterRoots(gopathwalk.SrcDirsRoots(r.env.buildContext()), exclude) - gopathwalk.Walk(roots, add, gopathwalk.Options{Debug: r.env.Debug, ModulesEnabled: false}) - var result []*pkg - for _, dir := range r.cache.Keys() { - info, ok := r.cache.Load(dir) - if !ok { - continue - } - if loadNames { - var err error - info, err = r.cache.CachePackageName(info) - if err != nil { - continue - } + processDir := func(info directoryPackageInfo) { + // Skip this directory if we were not able to get the package information successfully. + if scanned, err := info.reachedStatus(directoryScanned); !scanned || err != nil { + return } p := &pkg{ importPathShort: info.nonCanonicalImportPath, - dir: dir, - relevance: 1, - packageName: info.packageName, + dir: info.dir, + relevance: MaxRelevance - 1, } if info.rootType == gopathwalk.RootGOROOT { - p.relevance = 0 + p.relevance = MaxRelevance + } + + if !callback.dirFound(p) { + return + } + var err error + p.packageName, err = r.cache.CachePackageName(info) + if err != nil { + return + } + + if !callback.packageNameLoaded(p) { + return + } + if _, exports, err := r.loadExports(ctx, p, false); err == nil { + callback.exportsLoaded(p, exports) } - result = append(result, p) } - return result, nil + stop := r.cache.ScanAndListen(ctx, processDir) + defer stop() + // The callback is not necessarily safe to use in the goroutine below. Process roots eagerly. + roots := filterRoots(gopathwalk.SrcDirsRoots(r.env.buildContext()), callback.rootFound) + // We can't cancel walks, because we need them to finish to have a usable + // cache. Instead, run them in a separate goroutine and detach. + scanDone := make(chan struct{}) + go func() { + select { + case <-ctx.Done(): + return + case <-r.scanSema: + } + defer func() { r.scanSema <- struct{}{} }() + gopathwalk.Walk(roots, add, gopathwalk.Options{Debug: r.env.Debug, ModulesEnabled: false}) + close(scanDone) + }() + select { + case <-ctx.Done(): + case <-scanDone: + } + return nil +} + +func (r *gopathResolver) scoreImportPath(ctx context.Context, path string) int { + if _, ok := stdlib[path]; ok { + return MaxRelevance + } + return MaxRelevance - 1 } -func filterRoots(roots []gopathwalk.Root, exclude []gopathwalk.RootType) []gopathwalk.Root { +func filterRoots(roots []gopathwalk.Root, include func(gopathwalk.Root) bool) []gopathwalk.Root { var result []gopathwalk.Root -outer: for _, root := range roots { - for _, i := range exclude { - if i == root.Type { - continue outer - } + if !include(root) { + continue } result = append(result, root) } return result } -func (r *gopathResolver) loadExports(ctx context.Context, pkg *pkg) (string, []string, error) { - r.init() - if info, ok := r.cache.Load(pkg.dir); ok { +func (r *gopathResolver) loadExports(ctx context.Context, pkg *pkg, includeTest bool) (string, []string, error) { + if info, ok := r.cache.Load(pkg.dir); ok && !includeTest { return r.cache.CacheExports(ctx, r.env, info) } - return loadExportsFromFiles(ctx, r.env, pkg.dir) + return loadExportsFromFiles(ctx, r.env, pkg.dir, includeTest) } // VendorlessPath returns the devendorized version of the import path ipath. @@ -1261,7 +1299,7 @@ func VendorlessPath(ipath string) string { return ipath } -func loadExportsFromFiles(ctx context.Context, env *ProcessEnv, dir string) (string, []string, error) { +func loadExportsFromFiles(ctx context.Context, env *ProcessEnv, dir string, includeTest bool) (string, []string, error) { var exports []string // Look for non-test, buildable .go files which could provide exports. @@ -1272,7 +1310,7 @@ func loadExportsFromFiles(ctx context.Context, env *ProcessEnv, dir string) (str var files []os.FileInfo for _, fi := range all { name := fi.Name() - if !strings.HasSuffix(name, ".go") || strings.HasSuffix(name, "_test.go") { + if !strings.HasSuffix(name, ".go") || (!includeTest && strings.HasSuffix(name, "_test.go")) { continue } match, err := env.buildContext().MatchFile(dir, fi.Name()) @@ -1305,6 +1343,10 @@ func loadExportsFromFiles(ctx context.Context, env *ProcessEnv, dir string) (str // handled by MatchFile above. continue } + if includeTest && strings.HasSuffix(f.Name.Name, "_test") { + // x_test package. We want internal test files only. + continue + } pkgName = f.Name.Name for name := range f.Scope.Objects { if ast.IsExported(name) { @@ -1323,29 +1365,7 @@ func loadExportsFromFiles(ctx context.Context, env *ProcessEnv, dir string) (str // findImport searches for a package with the given symbols. // If no package is found, findImport returns ("", false, nil) -func findImport(ctx context.Context, pass *pass, dirScan []*pkg, pkgName string, symbols map[string]bool, filename string) (*pkg, error) { - pkgDir, err := filepath.Abs(filename) - if err != nil { - return nil, err - } - pkgDir = filepath.Dir(pkgDir) - - // Find candidate packages, looking only at their directory names first. - var candidates []pkgDistance - for _, pkg := range dirScan { - if pkg.dir == pkgDir && pass.f.Name.Name == pkgName { - // The candidate is in the same directory and has the - // same package name. Don't try to import ourselves. - continue - } - if pkgIsCandidate(filename, pkgName, pkg) { - candidates = append(candidates, pkgDistance{ - pkg: pkg, - distance: distance(pkgDir, pkg.dir), - }) - } - } - +func findImport(ctx context.Context, pass *pass, candidates []pkgDistance, pkgName string, symbols map[string]bool, filename string) (*pkg, error) { // Sort the candidates by their import package length, // assuming that shorter package names are better than long // ones. Note that this sorts by the de-vendored name, so @@ -1358,7 +1378,6 @@ func findImport(ctx context.Context, pass *pass, dirScan []*pkg, pkgName string, } // Collect exports for packages with matching names. - rescv := make([]chan *pkg, len(candidates)) for i := range candidates { rescv[i] = make(chan *pkg, 1) @@ -1393,7 +1412,9 @@ func findImport(ctx context.Context, pass *pass, dirScan []*pkg, pkgName string, if pass.env.Debug { pass.env.Logf("loading exports in dir %s (seeking package %s)", c.pkg.dir, pkgName) } - exports, err := loadExportsForPackage(ctx, pass.env, pkgName, c.pkg) + // If we're an x_test, load the package under test's test variant. + includeTest := strings.HasSuffix(pass.f.Name.Name, "_test") && c.pkg.dir == pass.srcDir + _, exports, err := pass.env.GetResolver().loadExports(ctx, c.pkg, includeTest) if err != nil { if pass.env.Debug { pass.env.Logf("loading exports in dir %s (seeking package %s): %v", c.pkg.dir, pkgName, err) @@ -1430,17 +1451,6 @@ func findImport(ctx context.Context, pass *pass, dirScan []*pkg, pkgName string, return nil, nil } -func loadExportsForPackage(ctx context.Context, env *ProcessEnv, expectPkg string, pkg *pkg) ([]string, error) { - pkgName, exports, err := env.GetResolver().loadExports(ctx, pkg) - if err != nil { - return nil, err - } - if expectPkg != pkgName { - return nil, fmt.Errorf("dir %v is package %v, wanted %v", pkg.dir, pkgName, expectPkg) - } - return exports, err -} - // pkgIsCandidate reports whether pkg is a candidate for satisfying the // finding which package pkgIdent in the file named by filename is trying // to refer to. @@ -1453,7 +1463,7 @@ func loadExportsForPackage(ctx context.Context, env *ProcessEnv, expectPkg strin // filename is the file being formatted. // pkgIdent is the package being searched for, like "client" (if // searching for "client.New") -func pkgIsCandidate(filename, pkgIdent string, pkg *pkg) bool { +func pkgIsCandidate(filename string, refs references, pkg *pkg) bool { // Check "internal" and "vendor" visibility: if !canUse(filename, pkg.dir) { return false @@ -1471,17 +1481,18 @@ func pkgIsCandidate(filename, pkgIdent string, pkg *pkg) bool { // "bar", which is strongly discouraged // anyway. There's no reason goimports needs // to be slow just to accommodate that. - lastTwo := lastTwoComponents(pkg.importPathShort) - if strings.Contains(lastTwo, pkgIdent) { - return true - } - if hasHyphenOrUpperASCII(lastTwo) && !hasHyphenOrUpperASCII(pkgIdent) { - lastTwo = lowerASCIIAndRemoveHyphen(lastTwo) + for pkgIdent := range refs { + lastTwo := lastTwoComponents(pkg.importPathShort) if strings.Contains(lastTwo, pkgIdent) { return true } + if hasHyphenOrUpperASCII(lastTwo) && !hasHyphenOrUpperASCII(pkgIdent) { + lastTwo = lowerASCIIAndRemoveHyphen(lastTwo) + if strings.Contains(lastTwo, pkgIdent) { + return true + } + } } - return false } diff --git a/vendor/golang.org/x/tools/internal/imports/imports.go b/vendor/golang.org/x/tools/internal/imports/imports.go index b5c975495..2e7a317e5 100644 --- a/vendor/golang.org/x/tools/internal/imports/imports.go +++ b/vendor/golang.org/x/tools/internal/imports/imports.go @@ -11,6 +11,7 @@ package imports import ( "bufio" "bytes" + "context" "fmt" "go/ast" "go/build" @@ -115,23 +116,23 @@ func ApplyFixes(fixes []*ImportFix, filename string, src []byte, opt *Options, e return formatFile(fileSet, file, src, nil, opt) } -// GetAllCandidates gets all of the standard library candidate packages to import in -// sorted order on import path. -func GetAllCandidates(filename string, opt *Options) (pkgs []ImportFix, err error) { - _, opt, err = initialize(filename, nil, opt) +// GetAllCandidates gets all of the packages starting with prefix that can be +// imported by filename, sorted by import path. +func GetAllCandidates(ctx context.Context, callback func(ImportFix), searchPrefix, filename, filePkg string, opt *Options) error { + _, opt, err := initialize(filename, []byte{}, opt) if err != nil { - return nil, err + return err } - return getAllCandidates(filename, opt.Env) + return getAllCandidates(ctx, callback, searchPrefix, filename, filePkg, opt.Env) } // GetPackageExports returns all known packages with name pkg and their exports. -func GetPackageExports(pkg, filename string, opt *Options) (exports []PackageExport, err error) { - _, opt, err = initialize(filename, nil, opt) +func GetPackageExports(ctx context.Context, callback func(PackageExport), searchPkg, filename, filePkg string, opt *Options) error { + _, opt, err := initialize(filename, []byte{}, opt) if err != nil { - return nil, err + return err } - return getPackageExports(pkg, filename, opt.Env) + return getPackageExports(ctx, callback, searchPkg, filename, filePkg, opt.Env) } // initialize sets the values for opt and src. diff --git a/vendor/golang.org/x/tools/internal/imports/mkindex.go b/vendor/golang.org/x/tools/internal/imports/mkindex.go deleted file mode 100644 index ef8c0d287..000000000 --- a/vendor/golang.org/x/tools/internal/imports/mkindex.go +++ /dev/null @@ -1,173 +0,0 @@ -// +build ignore - -// Copyright 2013 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -// Command mkindex creates the file "pkgindex.go" containing an index of the Go -// standard library. The file is intended to be built as part of the imports -// package, so that the package may be used in environments where a GOROOT is -// not available (such as App Engine). -package imports - -import ( - "bytes" - "fmt" - "go/ast" - "go/build" - "go/format" - "go/parser" - "go/token" - "io/ioutil" - "log" - "os" - "path" - "path/filepath" - "strings" -) - -var ( - pkgIndex = make(map[string][]pkg) - exports = make(map[string]map[string]bool) -) - -func main() { - // Don't use GOPATH. - ctx := build.Default - ctx.GOPATH = "" - - // Populate pkgIndex global from GOROOT. - for _, path := range ctx.SrcDirs() { - f, err := os.Open(path) - if err != nil { - log.Print(err) - continue - } - children, err := f.Readdir(-1) - f.Close() - if err != nil { - log.Print(err) - continue - } - for _, child := range children { - if child.IsDir() { - loadPkg(path, child.Name()) - } - } - } - // Populate exports global. - for _, ps := range pkgIndex { - for _, p := range ps { - e := loadExports(p.dir) - if e != nil { - exports[p.dir] = e - } - } - } - - // Construct source file. - var buf bytes.Buffer - fmt.Fprint(&buf, pkgIndexHead) - fmt.Fprintf(&buf, "var pkgIndexMaster = %#v\n", pkgIndex) - fmt.Fprintf(&buf, "var exportsMaster = %#v\n", exports) - src := buf.Bytes() - - // Replace main.pkg type name with pkg. - src = bytes.Replace(src, []byte("main.pkg"), []byte("pkg"), -1) - // Replace actual GOROOT with "/go". - src = bytes.Replace(src, []byte(ctx.GOROOT), []byte("/go"), -1) - // Add some line wrapping. - src = bytes.Replace(src, []byte("}, "), []byte("},\n"), -1) - src = bytes.Replace(src, []byte("true, "), []byte("true,\n"), -1) - - var err error - src, err = format.Source(src) - if err != nil { - log.Fatal(err) - } - - // Write out source file. - err = ioutil.WriteFile("pkgindex.go", src, 0644) - if err != nil { - log.Fatal(err) - } -} - -const pkgIndexHead = `package imports - -func init() { - pkgIndexOnce.Do(func() { - pkgIndex.m = pkgIndexMaster - }) - loadExports = func(dir string) map[string]bool { - return exportsMaster[dir] - } -} -` - -type pkg struct { - importpath string // full pkg import path, e.g. "net/http" - dir string // absolute file path to pkg directory e.g. "/usr/lib/go/src/fmt" -} - -var fset = token.NewFileSet() - -func loadPkg(root, importpath string) { - shortName := path.Base(importpath) - if shortName == "testdata" { - return - } - - dir := filepath.Join(root, importpath) - pkgIndex[shortName] = append(pkgIndex[shortName], pkg{ - importpath: importpath, - dir: dir, - }) - - pkgDir, err := os.Open(dir) - if err != nil { - return - } - children, err := pkgDir.Readdir(-1) - pkgDir.Close() - if err != nil { - return - } - for _, child := range children { - name := child.Name() - if name == "" { - continue - } - if c := name[0]; c == '.' || ('0' <= c && c <= '9') { - continue - } - if child.IsDir() { - loadPkg(root, filepath.Join(importpath, name)) - } - } -} - -func loadExports(dir string) map[string]bool { - exports := make(map[string]bool) - buildPkg, err := build.ImportDir(dir, 0) - if err != nil { - if strings.Contains(err.Error(), "no buildable Go source files in") { - return nil - } - log.Printf("could not import %q: %v", dir, err) - return nil - } - for _, file := range buildPkg.GoFiles { - f, err := parser.ParseFile(fset, filepath.Join(dir, file), nil, 0) - if err != nil { - log.Printf("could not parse %q: %v", file, err) - continue - } - for name := range f.Scope.Objects { - if ast.IsExported(name) { - exports[name] = true - } - } - } - return exports -} diff --git a/vendor/golang.org/x/tools/internal/imports/mkstdlib.go b/vendor/golang.org/x/tools/internal/imports/mkstdlib.go deleted file mode 100644 index 39b86ccd9..000000000 --- a/vendor/golang.org/x/tools/internal/imports/mkstdlib.go +++ /dev/null @@ -1,128 +0,0 @@ -// +build ignore - -// mkstdlib generates the zstdlib.go file, containing the Go standard -// library API symbols. It's baked into the binary to avoid scanning -// GOPATH in the common case. -package main - -import ( - "bufio" - "bytes" - "fmt" - "go/format" - "io" - "io/ioutil" - "log" - "os" - "os/exec" - "path/filepath" - "regexp" - "runtime" - "sort" -) - -func mustOpen(name string) io.Reader { - f, err := os.Open(name) - if err != nil { - log.Fatal(err) - } - return f -} - -func api(base string) string { - return filepath.Join(runtime.GOROOT(), "api", base) -} - -var sym = regexp.MustCompile(`^pkg (\S+).*?, (?:var|func|type|const) ([A-Z]\w*)`) - -var unsafeSyms = map[string]bool{"Alignof": true, "ArbitraryType": true, "Offsetof": true, "Pointer": true, "Sizeof": true} - -func main() { - var buf bytes.Buffer - outf := func(format string, args ...interface{}) { - fmt.Fprintf(&buf, format, args...) - } - outf("// Code generated by mkstdlib.go. DO NOT EDIT.\n\n") - outf("package imports\n") - outf("var stdlib = map[string][]string{\n") - f := io.MultiReader( - mustOpen(api("go1.txt")), - mustOpen(api("go1.1.txt")), - mustOpen(api("go1.2.txt")), - mustOpen(api("go1.3.txt")), - mustOpen(api("go1.4.txt")), - mustOpen(api("go1.5.txt")), - mustOpen(api("go1.6.txt")), - mustOpen(api("go1.7.txt")), - mustOpen(api("go1.8.txt")), - mustOpen(api("go1.9.txt")), - mustOpen(api("go1.10.txt")), - mustOpen(api("go1.11.txt")), - mustOpen(api("go1.12.txt")), - mustOpen(api("go1.13.txt")), - - // The API of the syscall/js package needs to be computed explicitly, - // because it's not included in the GOROOT/api/go1.*.txt files at this time. - syscallJSAPI(), - ) - sc := bufio.NewScanner(f) - - pkgs := map[string]map[string]bool{ - "unsafe": unsafeSyms, - } - paths := []string{"unsafe"} - - for sc.Scan() { - l := sc.Text() - if m := sym.FindStringSubmatch(l); m != nil { - path, sym := m[1], m[2] - - if _, ok := pkgs[path]; !ok { - pkgs[path] = map[string]bool{} - paths = append(paths, path) - } - pkgs[path][sym] = true - } - } - if err := sc.Err(); err != nil { - log.Fatal(err) - } - sort.Strings(paths) - for _, path := range paths { - outf("\t%q: []string{\n", path) - pkg := pkgs[path] - var syms []string - for sym := range pkg { - syms = append(syms, sym) - } - sort.Strings(syms) - for _, sym := range syms { - outf("\t\t%q,\n", sym) - } - outf("},\n") - } - outf("}\n") - fmtbuf, err := format.Source(buf.Bytes()) - if err != nil { - log.Fatal(err) - } - err = ioutil.WriteFile("zstdlib.go", fmtbuf, 0666) - if err != nil { - log.Fatal(err) - } -} - -// syscallJSAPI returns the API of the syscall/js package. -// It's computed from the contents of $(go env GOROOT)/src/syscall/js. -func syscallJSAPI() io.Reader { - var exeSuffix string - if runtime.GOOS == "windows" { - exeSuffix = ".exe" - } - cmd := exec.Command("go"+exeSuffix, "run", "cmd/api", "-contexts", "js-wasm", "syscall/js") - out, err := cmd.Output() - if err != nil { - log.Fatalln(err) - } - return bytes.NewReader(out) -} diff --git a/vendor/golang.org/x/tools/internal/imports/mod.go b/vendor/golang.org/x/tools/internal/imports/mod.go index 0f9b87eb7..3ae859ed2 100644 --- a/vendor/golang.org/x/tools/internal/imports/mod.go +++ b/vendor/golang.org/x/tools/internal/imports/mod.go @@ -13,7 +13,6 @@ import ( "sort" "strconv" "strings" - "sync" "golang.org/x/tools/internal/gopathwalk" "golang.org/x/tools/internal/module" @@ -26,11 +25,14 @@ type ModuleResolver struct { env *ProcessEnv moduleCacheDir string dummyVendorMod *ModuleJSON // If vendoring is enabled, the pseudo-module that represents the /vendor directory. + roots []gopathwalk.Root + scanSema chan struct{} // scanSema prevents concurrent scans and guards scannedRoots. + scannedRoots map[gopathwalk.Root]bool - Initialized bool - Main *ModuleJSON - ModsByModPath []*ModuleJSON // All modules, ordered by # of path components in module Path... - ModsByDir []*ModuleJSON // ...or Dir. + initialized bool + main *ModuleJSON + modsByModPath []*ModuleJSON // All modules, ordered by # of path components in module Path... + modsByDir []*ModuleJSON // ...or Dir. // moduleCacheCache stores information about the module cache. moduleCacheCache *dirInfoCache @@ -41,13 +43,23 @@ type ModuleJSON struct { Path string // module path Replace *ModuleJSON // replaced by this module Main bool // is this the main module? + Indirect bool // is this module only an indirect dependency of main module? Dir string // directory holding files for this module, if any GoMod string // path to go.mod file for this module, if any GoVersion string // go version used in module } +func newModuleResolver(e *ProcessEnv) *ModuleResolver { + r := &ModuleResolver{ + env: e, + scanSema: make(chan struct{}, 1), + } + r.scanSema <- struct{}{} + return r +} + func (r *ModuleResolver) init() error { - if r.Initialized { + if r.initialized { return nil } mainMod, vendorEnabled, err := vendorEnabled(r.env) @@ -58,13 +70,13 @@ func (r *ModuleResolver) init() error { if mainMod != nil && vendorEnabled { // Vendor mode is on, so all the non-Main modules are irrelevant, // and we need to search /vendor for everything. - r.Main = mainMod + r.main = mainMod r.dummyVendorMod = &ModuleJSON{ Path: "", Dir: filepath.Join(mainMod.Dir, "vendor"), } - r.ModsByModPath = []*ModuleJSON{mainMod, r.dummyVendorMod} - r.ModsByDir = []*ModuleJSON{mainMod, r.dummyVendorMod} + r.modsByModPath = []*ModuleJSON{mainMod, r.dummyVendorMod} + r.modsByDir = []*ModuleJSON{mainMod, r.dummyVendorMod} } else { // Vendor mode is off, so run go list -m ... to find everything. r.initAllMods() @@ -72,30 +84,64 @@ func (r *ModuleResolver) init() error { r.moduleCacheDir = filepath.Join(filepath.SplitList(r.env.GOPATH)[0], "/pkg/mod") - sort.Slice(r.ModsByModPath, func(i, j int) bool { + sort.Slice(r.modsByModPath, func(i, j int) bool { count := func(x int) int { - return strings.Count(r.ModsByModPath[x].Path, "/") + return strings.Count(r.modsByModPath[x].Path, "/") } return count(j) < count(i) // descending order }) - sort.Slice(r.ModsByDir, func(i, j int) bool { + sort.Slice(r.modsByDir, func(i, j int) bool { count := func(x int) int { - return strings.Count(r.ModsByDir[x].Dir, "/") + return strings.Count(r.modsByDir[x].Dir, "/") } return count(j) < count(i) // descending order }) + r.roots = []gopathwalk.Root{ + {filepath.Join(r.env.GOROOT, "/src"), gopathwalk.RootGOROOT}, + } + if r.main != nil { + r.roots = append(r.roots, gopathwalk.Root{r.main.Dir, gopathwalk.RootCurrentModule}) + } + if vendorEnabled { + r.roots = append(r.roots, gopathwalk.Root{r.dummyVendorMod.Dir, gopathwalk.RootOther}) + } else { + addDep := func(mod *ModuleJSON) { + if mod.Replace == nil { + // This is redundant with the cache, but we'll skip it cheaply enough. + r.roots = append(r.roots, gopathwalk.Root{mod.Dir, gopathwalk.RootModuleCache}) + } else { + r.roots = append(r.roots, gopathwalk.Root{mod.Dir, gopathwalk.RootOther}) + } + } + // Walk dependent modules before scanning the full mod cache, direct deps first. + for _, mod := range r.modsByModPath { + if !mod.Indirect && !mod.Main { + addDep(mod) + } + } + for _, mod := range r.modsByModPath { + if mod.Indirect && !mod.Main { + addDep(mod) + } + } + r.roots = append(r.roots, gopathwalk.Root{r.moduleCacheDir, gopathwalk.RootModuleCache}) + } + + r.scannedRoots = map[gopathwalk.Root]bool{} if r.moduleCacheCache == nil { r.moduleCacheCache = &dirInfoCache{ - dirs: map[string]*directoryPackageInfo{}, + dirs: map[string]*directoryPackageInfo{}, + listeners: map[*int]cacheListener{}, } } if r.otherCache == nil { r.otherCache = &dirInfoCache{ - dirs: map[string]*directoryPackageInfo{}, + dirs: map[string]*directoryPackageInfo{}, + listeners: map[*int]cacheListener{}, } } - r.Initialized = true + r.initialized = true return nil } @@ -116,27 +162,35 @@ func (r *ModuleResolver) initAllMods() error { // Can't do anything with a module that's not downloaded. continue } - r.ModsByModPath = append(r.ModsByModPath, mod) - r.ModsByDir = append(r.ModsByDir, mod) + r.modsByModPath = append(r.modsByModPath, mod) + r.modsByDir = append(r.modsByDir, mod) if mod.Main { - r.Main = mod + r.main = mod } } return nil } func (r *ModuleResolver) ClearForNewScan() { + <-r.scanSema + r.scannedRoots = map[gopathwalk.Root]bool{} r.otherCache = &dirInfoCache{ - dirs: map[string]*directoryPackageInfo{}, + dirs: map[string]*directoryPackageInfo{}, + listeners: map[*int]cacheListener{}, } + r.scanSema <- struct{}{} } func (r *ModuleResolver) ClearForNewMod() { - env := r.env + <-r.scanSema *r = ModuleResolver{ - env: env, + env: r.env, + moduleCacheCache: r.moduleCacheCache, + otherCache: r.otherCache, + scanSema: r.scanSema, } r.init() + r.scanSema <- struct{}{} } // findPackage returns the module and directory that contains the package at @@ -144,7 +198,7 @@ func (r *ModuleResolver) ClearForNewMod() { func (r *ModuleResolver) findPackage(importPath string) (*ModuleJSON, string) { // This can't find packages in the stdlib, but that's harmless for all // the existing code paths. - for _, m := range r.ModsByModPath { + for _, m := range r.modsByModPath { if !strings.HasPrefix(importPath, m.Path) { continue } @@ -211,7 +265,7 @@ func (r *ModuleResolver) cacheKeys() []string { } // cachePackageName caches the package name for a dir already in the cache. -func (r *ModuleResolver) cachePackageName(info directoryPackageInfo) (directoryPackageInfo, error) { +func (r *ModuleResolver) cachePackageName(info directoryPackageInfo) (string, error) { if info.rootType == gopathwalk.RootModuleCache { return r.moduleCacheCache.CachePackageName(info) } @@ -238,7 +292,7 @@ func (r *ModuleResolver) findModuleByDir(dir string) *ModuleJSON { // - in /vendor/ in -mod=vendor mode. // - nested module? Dunno. // Rumor has it that replace targets cannot contain other replace targets. - for _, m := range r.ModsByDir { + for _, m := range r.modsByDir { if !strings.HasPrefix(dir, m.Dir) { continue } @@ -333,41 +387,49 @@ func (r *ModuleResolver) loadPackageNames(importPaths []string, srcDir string) ( return names, nil } -func (r *ModuleResolver) scan(_ references, loadNames bool, exclude []gopathwalk.RootType) ([]*pkg, error) { +func (r *ModuleResolver) scan(ctx context.Context, callback *scanCallback) error { if err := r.init(); err != nil { - return nil, err + return err } - // Walk GOROOT, GOPATH/pkg/mod, and the main module. - roots := []gopathwalk.Root{ - {filepath.Join(r.env.GOROOT, "/src"), gopathwalk.RootGOROOT}, - } - if r.Main != nil { - roots = append(roots, gopathwalk.Root{r.Main.Dir, gopathwalk.RootCurrentModule}) - } - if r.dummyVendorMod != nil { - roots = append(roots, gopathwalk.Root{r.dummyVendorMod.Dir, gopathwalk.RootOther}) - } else { - roots = append(roots, gopathwalk.Root{r.moduleCacheDir, gopathwalk.RootModuleCache}) - // Walk replace targets, just in case they're not in any of the above. - for _, mod := range r.ModsByModPath { - if mod.Replace != nil { - roots = append(roots, gopathwalk.Root{mod.Dir, gopathwalk.RootOther}) - } + processDir := func(info directoryPackageInfo) { + // Skip this directory if we were not able to get the package information successfully. + if scanned, err := info.reachedStatus(directoryScanned); !scanned || err != nil { + return + } + pkg, err := r.canonicalize(info) + if err != nil { + return + } + + if !callback.dirFound(pkg) { + return + } + pkg.packageName, err = r.cachePackageName(info) + if err != nil { + return } - } - roots = filterRoots(roots, exclude) + if !callback.packageNameLoaded(pkg) { + return + } + _, exports, err := r.loadExports(ctx, pkg, false) + if err != nil { + return + } + callback.exportsLoaded(pkg, exports) + } - var result []*pkg - var mu sync.Mutex + // Start processing everything in the cache, and listen for the new stuff + // we discover in the walk below. + stop1 := r.moduleCacheCache.ScanAndListen(ctx, processDir) + defer stop1() + stop2 := r.otherCache.ScanAndListen(ctx, processDir) + defer stop2() - // We assume cached directories have not changed. We can skip them and their - // children. + // We assume cached directories are fully cached, including all their + // children, and have not changed. We can skip them. skip := func(root gopathwalk.Root, dir string) bool { - mu.Lock() - defer mu.Unlock() - info, ok := r.cacheLoad(dir) if !ok { return false @@ -379,44 +441,64 @@ func (r *ModuleResolver) scan(_ references, loadNames bool, exclude []gopathwalk return packageScanned } - // Add anything new to the cache. We'll process everything in it below. + // Add anything new to the cache, and process it if we're still listening. add := func(root gopathwalk.Root, dir string) { - mu.Lock() - defer mu.Unlock() - r.cacheStore(r.scanDirForPackage(root, dir)) } - gopathwalk.WalkSkip(roots, add, skip, gopathwalk.Options{Debug: r.env.Debug, ModulesEnabled: true}) - - // Everything we already had, and everything new, is now in the cache. - for _, dir := range r.cacheKeys() { - info, ok := r.cacheLoad(dir) - if !ok { - continue - } - - // Skip this directory if we were not able to get the package information successfully. - if scanned, err := info.reachedStatus(directoryScanned); !scanned || err != nil { - continue - } + // r.roots and the callback are not necessarily safe to use in the + // goroutine below. Process them eagerly. + roots := filterRoots(r.roots, callback.rootFound) + // We can't cancel walks, because we need them to finish to have a usable + // cache. Instead, run them in a separate goroutine and detach. + scanDone := make(chan struct{}) + go func() { + select { + case <-ctx.Done(): + return + case <-r.scanSema: + } + defer func() { r.scanSema <- struct{}{} }() + // We have the lock on r.scannedRoots, and no other scans can run. + for _, root := range roots { + if ctx.Err() != nil { + return + } - // If we want package names, make sure the cache has them. - if loadNames { - var err error - if info, err = r.cachePackageName(info); err != nil { + if r.scannedRoots[root] { continue } + gopathwalk.WalkSkip([]gopathwalk.Root{root}, add, skip, gopathwalk.Options{Debug: r.env.Debug, ModulesEnabled: true}) + r.scannedRoots[root] = true } + close(scanDone) + }() + select { + case <-ctx.Done(): + case <-scanDone: + } + return nil +} - res, err := r.canonicalize(info) - if err != nil { - continue - } - result = append(result, res) +func (r *ModuleResolver) scoreImportPath(ctx context.Context, path string) int { + if _, ok := stdlib[path]; ok { + return MaxRelevance } + mod, _ := r.findPackage(path) + return modRelevance(mod) +} - return result, nil +func modRelevance(mod *ModuleJSON) int { + switch { + case mod == nil: // out of scope + return MaxRelevance - 4 + case mod.Indirect: + return MaxRelevance - 3 + case !mod.Main: + return MaxRelevance - 2 + default: + return MaxRelevance - 1 // main module ties with stdlib + } } // canonicalize gets the result of canonicalizing the packages using the results @@ -428,15 +510,14 @@ func (r *ModuleResolver) canonicalize(info directoryPackageInfo) (*pkg, error) { importPathShort: info.nonCanonicalImportPath, dir: info.dir, packageName: path.Base(info.nonCanonicalImportPath), - relevance: 0, + relevance: MaxRelevance, }, nil } importPath := info.nonCanonicalImportPath - relevance := 2 + mod := r.findModuleByDir(info.dir) // Check if the directory is underneath a module that's in scope. - if mod := r.findModuleByDir(info.dir); mod != nil { - relevance = 1 + if mod != nil { // It is. If dir is the target of a replace directive, // our guessed import path is wrong. Use the real one. if mod.Dir == info.dir { @@ -445,15 +526,16 @@ func (r *ModuleResolver) canonicalize(info directoryPackageInfo) (*pkg, error) { dirInMod := info.dir[len(mod.Dir)+len("/"):] importPath = path.Join(mod.Path, filepath.ToSlash(dirInMod)) } - } else if info.needsReplace { + } else if !strings.HasPrefix(importPath, info.moduleName) { + // The module's name doesn't match the package's import path. It + // probably needs a replace directive we don't have. return nil, fmt.Errorf("package in %q is not valid without a replace statement", info.dir) } res := &pkg{ importPathShort: importPath, dir: info.dir, - packageName: info.packageName, // may not be populated if the caller didn't ask for it - relevance: relevance, + relevance: modRelevance(mod), } // We may have discovered a package that has a different version // in scope already. Canonicalize to that one if possible. @@ -463,14 +545,14 @@ func (r *ModuleResolver) canonicalize(info directoryPackageInfo) (*pkg, error) { return res, nil } -func (r *ModuleResolver) loadExports(ctx context.Context, pkg *pkg) (string, []string, error) { +func (r *ModuleResolver) loadExports(ctx context.Context, pkg *pkg, includeTest bool) (string, []string, error) { if err := r.init(); err != nil { return "", nil, err } - if info, ok := r.cacheLoad(pkg.dir); ok { + if info, ok := r.cacheLoad(pkg.dir); ok && !includeTest { return r.cacheExports(ctx, r.env, info) } - return loadExportsFromFiles(ctx, r.env, pkg.dir) + return loadExportsFromFiles(ctx, r.env, pkg.dir, includeTest) } func (r *ModuleResolver) scanDirForPackage(root gopathwalk.Root, dir string) directoryPackageInfo { @@ -488,7 +570,7 @@ func (r *ModuleResolver) scanDirForPackage(root gopathwalk.Root, dir string) dir } switch root.Type { case gopathwalk.RootCurrentModule: - importPath = path.Join(r.Main.Path, filepath.ToSlash(subdir)) + importPath = path.Join(r.main.Path, filepath.ToSlash(subdir)) case gopathwalk.RootModuleCache: matches := modCacheRegexp.FindStringSubmatch(subdir) if len(matches) == 0 { @@ -516,7 +598,6 @@ func (r *ModuleResolver) scanDirForPackage(root gopathwalk.Root, dir string) dir dir: dir, rootType: root.Type, nonCanonicalImportPath: importPath, - needsReplace: false, moduleDir: modDir, moduleName: modName, } @@ -524,14 +605,6 @@ func (r *ModuleResolver) scanDirForPackage(root gopathwalk.Root, dir string) dir // stdlib packages are always in scope, despite the confusing go.mod return result } - // Check that this package is not obviously impossible to import. - if !strings.HasPrefix(importPath, modName) { - // The module's declared path does not match - // its expected path. It probably needs a - // replace directive we don't have. - result.needsReplace = true - } - return result } diff --git a/vendor/golang.org/x/tools/internal/imports/mod_cache.go b/vendor/golang.org/x/tools/internal/imports/mod_cache.go index f6b070a3f..6df7d48f9 100644 --- a/vendor/golang.org/x/tools/internal/imports/mod_cache.go +++ b/vendor/golang.org/x/tools/internal/imports/mod_cache.go @@ -49,10 +49,6 @@ type directoryPackageInfo struct { // nonCanonicalImportPath is the package's expected import path. It may // not actually be importable at that path. nonCanonicalImportPath string - // needsReplace is true if the nonCanonicalImportPath does not match the - // module's declared path, making it impossible to import without a - // replace directive. - needsReplace bool // Module-related information. moduleDir string // The directory that is the module root of this dir. @@ -97,15 +93,85 @@ func (info *directoryPackageInfo) reachedStatus(target directoryPackageStatus) ( type dirInfoCache struct { mu sync.Mutex // dirs stores information about packages in directories, keyed by absolute path. - dirs map[string]*directoryPackageInfo + dirs map[string]*directoryPackageInfo + listeners map[*int]cacheListener +} + +type cacheListener func(directoryPackageInfo) + +// ScanAndListen calls listener on all the items in the cache, and on anything +// newly added. The returned stop function waits for all in-flight callbacks to +// finish and blocks new ones. +func (d *dirInfoCache) ScanAndListen(ctx context.Context, listener cacheListener) func() { + ctx, cancel := context.WithCancel(ctx) + + // Flushing out all the callbacks is tricky without knowing how many there + // are going to be. Setting an arbitrary limit makes it much easier. + const maxInFlight = 10 + sema := make(chan struct{}, maxInFlight) + for i := 0; i < maxInFlight; i++ { + sema <- struct{}{} + } + + cookie := new(int) // A unique ID we can use for the listener. + + // We can't hold mu while calling the listener. + d.mu.Lock() + var keys []string + for key := range d.dirs { + keys = append(keys, key) + } + d.listeners[cookie] = func(info directoryPackageInfo) { + select { + case <-ctx.Done(): + return + case <-sema: + } + listener(info) + sema <- struct{}{} + } + d.mu.Unlock() + + // Process the pre-existing keys. + for _, k := range keys { + select { + case <-ctx.Done(): + cancel() + return func() {} + default: + } + if v, ok := d.Load(k); ok { + listener(v) + } + } + + return func() { + cancel() + d.mu.Lock() + delete(d.listeners, cookie) + d.mu.Unlock() + for i := 0; i < maxInFlight; i++ { + <-sema + } + } } // Store stores the package info for dir. func (d *dirInfoCache) Store(dir string, info directoryPackageInfo) { d.mu.Lock() - defer d.mu.Unlock() - stored := info // defensive copy - d.dirs[dir] = &stored + _, old := d.dirs[dir] + d.dirs[dir] = &info + var listeners []cacheListener + for _, l := range d.listeners { + listeners = append(listeners, l) + } + d.mu.Unlock() + + if !old { + for _, l := range listeners { + l(info) + } + } } // Load returns a copy of the directoryPackageInfo for absolute directory dir. @@ -129,17 +195,17 @@ func (d *dirInfoCache) Keys() (keys []string) { return keys } -func (d *dirInfoCache) CachePackageName(info directoryPackageInfo) (directoryPackageInfo, error) { +func (d *dirInfoCache) CachePackageName(info directoryPackageInfo) (string, error) { if loaded, err := info.reachedStatus(nameLoaded); loaded { - return info, err + return info.packageName, err } if scanned, err := info.reachedStatus(directoryScanned); !scanned || err != nil { - return info, fmt.Errorf("cannot read package name, scan error: %v", err) + return "", fmt.Errorf("cannot read package name, scan error: %v", err) } info.packageName, info.err = packageDirToName(info.dir) info.status = nameLoaded d.Store(info.dir, info) - return info, info.err + return info.packageName, info.err } func (d *dirInfoCache) CacheExports(ctx context.Context, env *ProcessEnv, info directoryPackageInfo) (string, []string, error) { @@ -149,8 +215,8 @@ func (d *dirInfoCache) CacheExports(ctx context.Context, env *ProcessEnv, info d if reached, err := info.reachedStatus(nameLoaded); reached && err != nil { return "", nil, err } - info.packageName, info.exports, info.err = loadExportsFromFiles(ctx, env, info.dir) - if info.err == context.Canceled { + info.packageName, info.exports, info.err = loadExportsFromFiles(ctx, env, info.dir, false) + if info.err == context.Canceled || info.err == context.DeadlineExceeded { return info.packageName, info.exports, info.err } // The cache structure wants things to proceed linearly. We can skip a diff --git a/vendor/golang.org/x/tools/internal/packagesinternal/packages.go b/vendor/golang.org/x/tools/internal/packagesinternal/packages.go new file mode 100644 index 000000000..0c0dbb6a9 --- /dev/null +++ b/vendor/golang.org/x/tools/internal/packagesinternal/packages.go @@ -0,0 +1,4 @@ +// Package packagesinternal exposes internal-only fields from go/packages. +package packagesinternal + +var GetForTest = func(p interface{}) string { return "" } diff --git a/vendor/google.golang.org/api/compute/v0.beta/compute-gen.go b/vendor/google.golang.org/api/compute/v0.beta/compute-gen.go index efed0d0ac..86e930778 100644 --- a/vendor/google.golang.org/api/compute/v0.beta/compute-gen.go +++ b/vendor/google.golang.org/api/compute/v0.beta/compute-gen.go @@ -39,7 +39,7 @@ // computeService, err := compute.NewService(ctx, option.WithTokenSource(config.TokenSource(ctx, token))) // // See https://godoc.org/google.golang.org/api/option/ for details on options. -package compute +package compute // import "google.golang.org/api/compute/v0.beta" import ( "bytes" diff --git a/vendor/google.golang.org/api/googleapi/googleapi.go b/vendor/google.golang.org/api/googleapi/googleapi.go index 850a094a4..471ae259c 100644 --- a/vendor/google.golang.org/api/googleapi/googleapi.go +++ b/vendor/google.golang.org/api/googleapi/googleapi.go @@ -4,7 +4,7 @@ // Package googleapi contains the common code shared by all Google API // libraries. -package googleapi +package googleapi // import "google.golang.org/api/googleapi" import ( "bytes" diff --git a/vendor/google.golang.org/api/storage/v1/storage-gen.go b/vendor/google.golang.org/api/storage/v1/storage-gen.go index 9c036e829..d19121d5d 100644 --- a/vendor/google.golang.org/api/storage/v1/storage-gen.go +++ b/vendor/google.golang.org/api/storage/v1/storage-gen.go @@ -41,7 +41,7 @@ // storageService, err := storage.NewService(ctx, option.WithTokenSource(config.TokenSource(ctx, token))) // // See https://godoc.org/google.golang.org/api/option/ for details on options. -package storage +package storage // import "google.golang.org/api/storage/v1" import ( "bytes" diff --git a/vendor/google.golang.org/appengine/appengine.go b/vendor/google.golang.org/appengine/appengine.go index 7c702b0c1..8c9697674 100644 --- a/vendor/google.golang.org/appengine/appengine.go +++ b/vendor/google.golang.org/appengine/appengine.go @@ -6,7 +6,7 @@ // // For more information on how to write Go apps for Google App Engine, see: // https://cloud.google.com/appengine/docs/go/ -package appengine +package appengine // import "google.golang.org/appengine" import ( "net/http" diff --git a/vendor/google.golang.org/appengine/datastore/doc.go b/vendor/google.golang.org/appengine/datastore/doc.go index c1bfd8ce8..85616cf27 100644 --- a/vendor/google.golang.org/appengine/datastore/doc.go +++ b/vendor/google.golang.org/appengine/datastore/doc.go @@ -358,4 +358,4 @@ Example code: } } */ -package datastore +package datastore // import "google.golang.org/appengine/datastore" diff --git a/vendor/google.golang.org/appengine/internal/datastore/datastore_v3.proto b/vendor/google.golang.org/appengine/internal/datastore/datastore_v3.proto old mode 100755 new mode 100644 diff --git a/vendor/google.golang.org/appengine/internal/regen.sh b/vendor/google.golang.org/appengine/internal/regen.sh old mode 100755 new mode 100644 diff --git a/vendor/google.golang.org/appengine/internal/urlfetch/urlfetch_service.pb.go b/vendor/google.golang.org/appengine/internal/urlfetch/urlfetch_service.pb.go new file mode 100644 index 000000000..5f727750a --- /dev/null +++ b/vendor/google.golang.org/appengine/internal/urlfetch/urlfetch_service.pb.go @@ -0,0 +1,527 @@ +// Code generated by protoc-gen-go. DO NOT EDIT. +// source: google.golang.org/appengine/internal/urlfetch/urlfetch_service.proto + +package urlfetch + +import proto "github.com/golang/protobuf/proto" +import fmt "fmt" +import math "math" + +// Reference imports to suppress errors if they are not otherwise used. +var _ = proto.Marshal +var _ = fmt.Errorf +var _ = math.Inf + +// This is a compile-time assertion to ensure that this generated file +// is compatible with the proto package it is being compiled against. +// A compilation error at this line likely means your copy of the +// proto package needs to be updated. +const _ = proto.ProtoPackageIsVersion2 // please upgrade the proto package + +type URLFetchServiceError_ErrorCode int32 + +const ( + URLFetchServiceError_OK URLFetchServiceError_ErrorCode = 0 + URLFetchServiceError_INVALID_URL URLFetchServiceError_ErrorCode = 1 + URLFetchServiceError_FETCH_ERROR URLFetchServiceError_ErrorCode = 2 + URLFetchServiceError_UNSPECIFIED_ERROR URLFetchServiceError_ErrorCode = 3 + URLFetchServiceError_RESPONSE_TOO_LARGE URLFetchServiceError_ErrorCode = 4 + URLFetchServiceError_DEADLINE_EXCEEDED URLFetchServiceError_ErrorCode = 5 + URLFetchServiceError_SSL_CERTIFICATE_ERROR URLFetchServiceError_ErrorCode = 6 + URLFetchServiceError_DNS_ERROR URLFetchServiceError_ErrorCode = 7 + URLFetchServiceError_CLOSED URLFetchServiceError_ErrorCode = 8 + URLFetchServiceError_INTERNAL_TRANSIENT_ERROR URLFetchServiceError_ErrorCode = 9 + URLFetchServiceError_TOO_MANY_REDIRECTS URLFetchServiceError_ErrorCode = 10 + URLFetchServiceError_MALFORMED_REPLY URLFetchServiceError_ErrorCode = 11 + URLFetchServiceError_CONNECTION_ERROR URLFetchServiceError_ErrorCode = 12 +) + +var URLFetchServiceError_ErrorCode_name = map[int32]string{ + 0: "OK", + 1: "INVALID_URL", + 2: "FETCH_ERROR", + 3: "UNSPECIFIED_ERROR", + 4: "RESPONSE_TOO_LARGE", + 5: "DEADLINE_EXCEEDED", + 6: "SSL_CERTIFICATE_ERROR", + 7: "DNS_ERROR", + 8: "CLOSED", + 9: "INTERNAL_TRANSIENT_ERROR", + 10: "TOO_MANY_REDIRECTS", + 11: "MALFORMED_REPLY", + 12: "CONNECTION_ERROR", +} +var URLFetchServiceError_ErrorCode_value = map[string]int32{ + "OK": 0, + "INVALID_URL": 1, + "FETCH_ERROR": 2, + "UNSPECIFIED_ERROR": 3, + "RESPONSE_TOO_LARGE": 4, + "DEADLINE_EXCEEDED": 5, + "SSL_CERTIFICATE_ERROR": 6, + "DNS_ERROR": 7, + "CLOSED": 8, + "INTERNAL_TRANSIENT_ERROR": 9, + "TOO_MANY_REDIRECTS": 10, + "MALFORMED_REPLY": 11, + "CONNECTION_ERROR": 12, +} + +func (x URLFetchServiceError_ErrorCode) Enum() *URLFetchServiceError_ErrorCode { + p := new(URLFetchServiceError_ErrorCode) + *p = x + return p +} +func (x URLFetchServiceError_ErrorCode) String() string { + return proto.EnumName(URLFetchServiceError_ErrorCode_name, int32(x)) +} +func (x *URLFetchServiceError_ErrorCode) UnmarshalJSON(data []byte) error { + value, err := proto.UnmarshalJSONEnum(URLFetchServiceError_ErrorCode_value, data, "URLFetchServiceError_ErrorCode") + if err != nil { + return err + } + *x = URLFetchServiceError_ErrorCode(value) + return nil +} +func (URLFetchServiceError_ErrorCode) EnumDescriptor() ([]byte, []int) { + return fileDescriptor_urlfetch_service_b245a7065f33bced, []int{0, 0} +} + +type URLFetchRequest_RequestMethod int32 + +const ( + URLFetchRequest_GET URLFetchRequest_RequestMethod = 1 + URLFetchRequest_POST URLFetchRequest_RequestMethod = 2 + URLFetchRequest_HEAD URLFetchRequest_RequestMethod = 3 + URLFetchRequest_PUT URLFetchRequest_RequestMethod = 4 + URLFetchRequest_DELETE URLFetchRequest_RequestMethod = 5 + URLFetchRequest_PATCH URLFetchRequest_RequestMethod = 6 +) + +var URLFetchRequest_RequestMethod_name = map[int32]string{ + 1: "GET", + 2: "POST", + 3: "HEAD", + 4: "PUT", + 5: "DELETE", + 6: "PATCH", +} +var URLFetchRequest_RequestMethod_value = map[string]int32{ + "GET": 1, + "POST": 2, + "HEAD": 3, + "PUT": 4, + "DELETE": 5, + "PATCH": 6, +} + +func (x URLFetchRequest_RequestMethod) Enum() *URLFetchRequest_RequestMethod { + p := new(URLFetchRequest_RequestMethod) + *p = x + return p +} +func (x URLFetchRequest_RequestMethod) String() string { + return proto.EnumName(URLFetchRequest_RequestMethod_name, int32(x)) +} +func (x *URLFetchRequest_RequestMethod) UnmarshalJSON(data []byte) error { + value, err := proto.UnmarshalJSONEnum(URLFetchRequest_RequestMethod_value, data, "URLFetchRequest_RequestMethod") + if err != nil { + return err + } + *x = URLFetchRequest_RequestMethod(value) + return nil +} +func (URLFetchRequest_RequestMethod) EnumDescriptor() ([]byte, []int) { + return fileDescriptor_urlfetch_service_b245a7065f33bced, []int{1, 0} +} + +type URLFetchServiceError struct { + XXX_NoUnkeyedLiteral struct{} `json:"-"` + XXX_unrecognized []byte `json:"-"` + XXX_sizecache int32 `json:"-"` +} + +func (m *URLFetchServiceError) Reset() { *m = URLFetchServiceError{} } +func (m *URLFetchServiceError) String() string { return proto.CompactTextString(m) } +func (*URLFetchServiceError) ProtoMessage() {} +func (*URLFetchServiceError) Descriptor() ([]byte, []int) { + return fileDescriptor_urlfetch_service_b245a7065f33bced, []int{0} +} +func (m *URLFetchServiceError) XXX_Unmarshal(b []byte) error { + return xxx_messageInfo_URLFetchServiceError.Unmarshal(m, b) +} +func (m *URLFetchServiceError) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) { + return xxx_messageInfo_URLFetchServiceError.Marshal(b, m, deterministic) +} +func (dst *URLFetchServiceError) XXX_Merge(src proto.Message) { + xxx_messageInfo_URLFetchServiceError.Merge(dst, src) +} +func (m *URLFetchServiceError) XXX_Size() int { + return xxx_messageInfo_URLFetchServiceError.Size(m) +} +func (m *URLFetchServiceError) XXX_DiscardUnknown() { + xxx_messageInfo_URLFetchServiceError.DiscardUnknown(m) +} + +var xxx_messageInfo_URLFetchServiceError proto.InternalMessageInfo + +type URLFetchRequest struct { + Method *URLFetchRequest_RequestMethod `protobuf:"varint,1,req,name=Method,enum=appengine.URLFetchRequest_RequestMethod" json:"Method,omitempty"` + Url *string `protobuf:"bytes,2,req,name=Url" json:"Url,omitempty"` + Header []*URLFetchRequest_Header `protobuf:"group,3,rep,name=Header,json=header" json:"header,omitempty"` + Payload []byte `protobuf:"bytes,6,opt,name=Payload" json:"Payload,omitempty"` + FollowRedirects *bool `protobuf:"varint,7,opt,name=FollowRedirects,def=1" json:"FollowRedirects,omitempty"` + Deadline *float64 `protobuf:"fixed64,8,opt,name=Deadline" json:"Deadline,omitempty"` + MustValidateServerCertificate *bool `protobuf:"varint,9,opt,name=MustValidateServerCertificate,def=1" json:"MustValidateServerCertificate,omitempty"` + XXX_NoUnkeyedLiteral struct{} `json:"-"` + XXX_unrecognized []byte `json:"-"` + XXX_sizecache int32 `json:"-"` +} + +func (m *URLFetchRequest) Reset() { *m = URLFetchRequest{} } +func (m *URLFetchRequest) String() string { return proto.CompactTextString(m) } +func (*URLFetchRequest) ProtoMessage() {} +func (*URLFetchRequest) Descriptor() ([]byte, []int) { + return fileDescriptor_urlfetch_service_b245a7065f33bced, []int{1} +} +func (m *URLFetchRequest) XXX_Unmarshal(b []byte) error { + return xxx_messageInfo_URLFetchRequest.Unmarshal(m, b) +} +func (m *URLFetchRequest) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) { + return xxx_messageInfo_URLFetchRequest.Marshal(b, m, deterministic) +} +func (dst *URLFetchRequest) XXX_Merge(src proto.Message) { + xxx_messageInfo_URLFetchRequest.Merge(dst, src) +} +func (m *URLFetchRequest) XXX_Size() int { + return xxx_messageInfo_URLFetchRequest.Size(m) +} +func (m *URLFetchRequest) XXX_DiscardUnknown() { + xxx_messageInfo_URLFetchRequest.DiscardUnknown(m) +} + +var xxx_messageInfo_URLFetchRequest proto.InternalMessageInfo + +const Default_URLFetchRequest_FollowRedirects bool = true +const Default_URLFetchRequest_MustValidateServerCertificate bool = true + +func (m *URLFetchRequest) GetMethod() URLFetchRequest_RequestMethod { + if m != nil && m.Method != nil { + return *m.Method + } + return URLFetchRequest_GET +} + +func (m *URLFetchRequest) GetUrl() string { + if m != nil && m.Url != nil { + return *m.Url + } + return "" +} + +func (m *URLFetchRequest) GetHeader() []*URLFetchRequest_Header { + if m != nil { + return m.Header + } + return nil +} + +func (m *URLFetchRequest) GetPayload() []byte { + if m != nil { + return m.Payload + } + return nil +} + +func (m *URLFetchRequest) GetFollowRedirects() bool { + if m != nil && m.FollowRedirects != nil { + return *m.FollowRedirects + } + return Default_URLFetchRequest_FollowRedirects +} + +func (m *URLFetchRequest) GetDeadline() float64 { + if m != nil && m.Deadline != nil { + return *m.Deadline + } + return 0 +} + +func (m *URLFetchRequest) GetMustValidateServerCertificate() bool { + if m != nil && m.MustValidateServerCertificate != nil { + return *m.MustValidateServerCertificate + } + return Default_URLFetchRequest_MustValidateServerCertificate +} + +type URLFetchRequest_Header struct { + Key *string `protobuf:"bytes,4,req,name=Key" json:"Key,omitempty"` + Value *string `protobuf:"bytes,5,req,name=Value" json:"Value,omitempty"` + XXX_NoUnkeyedLiteral struct{} `json:"-"` + XXX_unrecognized []byte `json:"-"` + XXX_sizecache int32 `json:"-"` +} + +func (m *URLFetchRequest_Header) Reset() { *m = URLFetchRequest_Header{} } +func (m *URLFetchRequest_Header) String() string { return proto.CompactTextString(m) } +func (*URLFetchRequest_Header) ProtoMessage() {} +func (*URLFetchRequest_Header) Descriptor() ([]byte, []int) { + return fileDescriptor_urlfetch_service_b245a7065f33bced, []int{1, 0} +} +func (m *URLFetchRequest_Header) XXX_Unmarshal(b []byte) error { + return xxx_messageInfo_URLFetchRequest_Header.Unmarshal(m, b) +} +func (m *URLFetchRequest_Header) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) { + return xxx_messageInfo_URLFetchRequest_Header.Marshal(b, m, deterministic) +} +func (dst *URLFetchRequest_Header) XXX_Merge(src proto.Message) { + xxx_messageInfo_URLFetchRequest_Header.Merge(dst, src) +} +func (m *URLFetchRequest_Header) XXX_Size() int { + return xxx_messageInfo_URLFetchRequest_Header.Size(m) +} +func (m *URLFetchRequest_Header) XXX_DiscardUnknown() { + xxx_messageInfo_URLFetchRequest_Header.DiscardUnknown(m) +} + +var xxx_messageInfo_URLFetchRequest_Header proto.InternalMessageInfo + +func (m *URLFetchRequest_Header) GetKey() string { + if m != nil && m.Key != nil { + return *m.Key + } + return "" +} + +func (m *URLFetchRequest_Header) GetValue() string { + if m != nil && m.Value != nil { + return *m.Value + } + return "" +} + +type URLFetchResponse struct { + Content []byte `protobuf:"bytes,1,opt,name=Content" json:"Content,omitempty"` + StatusCode *int32 `protobuf:"varint,2,req,name=StatusCode" json:"StatusCode,omitempty"` + Header []*URLFetchResponse_Header `protobuf:"group,3,rep,name=Header,json=header" json:"header,omitempty"` + ContentWasTruncated *bool `protobuf:"varint,6,opt,name=ContentWasTruncated,def=0" json:"ContentWasTruncated,omitempty"` + ExternalBytesSent *int64 `protobuf:"varint,7,opt,name=ExternalBytesSent" json:"ExternalBytesSent,omitempty"` + ExternalBytesReceived *int64 `protobuf:"varint,8,opt,name=ExternalBytesReceived" json:"ExternalBytesReceived,omitempty"` + FinalUrl *string `protobuf:"bytes,9,opt,name=FinalUrl" json:"FinalUrl,omitempty"` + ApiCpuMilliseconds *int64 `protobuf:"varint,10,opt,name=ApiCpuMilliseconds,def=0" json:"ApiCpuMilliseconds,omitempty"` + ApiBytesSent *int64 `protobuf:"varint,11,opt,name=ApiBytesSent,def=0" json:"ApiBytesSent,omitempty"` + ApiBytesReceived *int64 `protobuf:"varint,12,opt,name=ApiBytesReceived,def=0" json:"ApiBytesReceived,omitempty"` + XXX_NoUnkeyedLiteral struct{} `json:"-"` + XXX_unrecognized []byte `json:"-"` + XXX_sizecache int32 `json:"-"` +} + +func (m *URLFetchResponse) Reset() { *m = URLFetchResponse{} } +func (m *URLFetchResponse) String() string { return proto.CompactTextString(m) } +func (*URLFetchResponse) ProtoMessage() {} +func (*URLFetchResponse) Descriptor() ([]byte, []int) { + return fileDescriptor_urlfetch_service_b245a7065f33bced, []int{2} +} +func (m *URLFetchResponse) XXX_Unmarshal(b []byte) error { + return xxx_messageInfo_URLFetchResponse.Unmarshal(m, b) +} +func (m *URLFetchResponse) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) { + return xxx_messageInfo_URLFetchResponse.Marshal(b, m, deterministic) +} +func (dst *URLFetchResponse) XXX_Merge(src proto.Message) { + xxx_messageInfo_URLFetchResponse.Merge(dst, src) +} +func (m *URLFetchResponse) XXX_Size() int { + return xxx_messageInfo_URLFetchResponse.Size(m) +} +func (m *URLFetchResponse) XXX_DiscardUnknown() { + xxx_messageInfo_URLFetchResponse.DiscardUnknown(m) +} + +var xxx_messageInfo_URLFetchResponse proto.InternalMessageInfo + +const Default_URLFetchResponse_ContentWasTruncated bool = false +const Default_URLFetchResponse_ApiCpuMilliseconds int64 = 0 +const Default_URLFetchResponse_ApiBytesSent int64 = 0 +const Default_URLFetchResponse_ApiBytesReceived int64 = 0 + +func (m *URLFetchResponse) GetContent() []byte { + if m != nil { + return m.Content + } + return nil +} + +func (m *URLFetchResponse) GetStatusCode() int32 { + if m != nil && m.StatusCode != nil { + return *m.StatusCode + } + return 0 +} + +func (m *URLFetchResponse) GetHeader() []*URLFetchResponse_Header { + if m != nil { + return m.Header + } + return nil +} + +func (m *URLFetchResponse) GetContentWasTruncated() bool { + if m != nil && m.ContentWasTruncated != nil { + return *m.ContentWasTruncated + } + return Default_URLFetchResponse_ContentWasTruncated +} + +func (m *URLFetchResponse) GetExternalBytesSent() int64 { + if m != nil && m.ExternalBytesSent != nil { + return *m.ExternalBytesSent + } + return 0 +} + +func (m *URLFetchResponse) GetExternalBytesReceived() int64 { + if m != nil && m.ExternalBytesReceived != nil { + return *m.ExternalBytesReceived + } + return 0 +} + +func (m *URLFetchResponse) GetFinalUrl() string { + if m != nil && m.FinalUrl != nil { + return *m.FinalUrl + } + return "" +} + +func (m *URLFetchResponse) GetApiCpuMilliseconds() int64 { + if m != nil && m.ApiCpuMilliseconds != nil { + return *m.ApiCpuMilliseconds + } + return Default_URLFetchResponse_ApiCpuMilliseconds +} + +func (m *URLFetchResponse) GetApiBytesSent() int64 { + if m != nil && m.ApiBytesSent != nil { + return *m.ApiBytesSent + } + return Default_URLFetchResponse_ApiBytesSent +} + +func (m *URLFetchResponse) GetApiBytesReceived() int64 { + if m != nil && m.ApiBytesReceived != nil { + return *m.ApiBytesReceived + } + return Default_URLFetchResponse_ApiBytesReceived +} + +type URLFetchResponse_Header struct { + Key *string `protobuf:"bytes,4,req,name=Key" json:"Key,omitempty"` + Value *string `protobuf:"bytes,5,req,name=Value" json:"Value,omitempty"` + XXX_NoUnkeyedLiteral struct{} `json:"-"` + XXX_unrecognized []byte `json:"-"` + XXX_sizecache int32 `json:"-"` +} + +func (m *URLFetchResponse_Header) Reset() { *m = URLFetchResponse_Header{} } +func (m *URLFetchResponse_Header) String() string { return proto.CompactTextString(m) } +func (*URLFetchResponse_Header) ProtoMessage() {} +func (*URLFetchResponse_Header) Descriptor() ([]byte, []int) { + return fileDescriptor_urlfetch_service_b245a7065f33bced, []int{2, 0} +} +func (m *URLFetchResponse_Header) XXX_Unmarshal(b []byte) error { + return xxx_messageInfo_URLFetchResponse_Header.Unmarshal(m, b) +} +func (m *URLFetchResponse_Header) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) { + return xxx_messageInfo_URLFetchResponse_Header.Marshal(b, m, deterministic) +} +func (dst *URLFetchResponse_Header) XXX_Merge(src proto.Message) { + xxx_messageInfo_URLFetchResponse_Header.Merge(dst, src) +} +func (m *URLFetchResponse_Header) XXX_Size() int { + return xxx_messageInfo_URLFetchResponse_Header.Size(m) +} +func (m *URLFetchResponse_Header) XXX_DiscardUnknown() { + xxx_messageInfo_URLFetchResponse_Header.DiscardUnknown(m) +} + +var xxx_messageInfo_URLFetchResponse_Header proto.InternalMessageInfo + +func (m *URLFetchResponse_Header) GetKey() string { + if m != nil && m.Key != nil { + return *m.Key + } + return "" +} + +func (m *URLFetchResponse_Header) GetValue() string { + if m != nil && m.Value != nil { + return *m.Value + } + return "" +} + +func init() { + proto.RegisterType((*URLFetchServiceError)(nil), "appengine.URLFetchServiceError") + proto.RegisterType((*URLFetchRequest)(nil), "appengine.URLFetchRequest") + proto.RegisterType((*URLFetchRequest_Header)(nil), "appengine.URLFetchRequest.Header") + proto.RegisterType((*URLFetchResponse)(nil), "appengine.URLFetchResponse") + proto.RegisterType((*URLFetchResponse_Header)(nil), "appengine.URLFetchResponse.Header") +} + +func init() { + proto.RegisterFile("google.golang.org/appengine/internal/urlfetch/urlfetch_service.proto", fileDescriptor_urlfetch_service_b245a7065f33bced) +} + +var fileDescriptor_urlfetch_service_b245a7065f33bced = []byte{ + // 770 bytes of a gzipped FileDescriptorProto + 0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0x94, 0x54, 0xdd, 0x6e, 0xe3, 0x54, + 0x10, 0xc6, 0x76, 0x7e, 0xa7, 0x5d, 0x7a, 0x76, 0xb6, 0x45, 0x66, 0xb5, 0xa0, 0x10, 0x09, 0x29, + 0x17, 0x90, 0x2e, 0x2b, 0x24, 0x44, 0xaf, 0x70, 0xed, 0x93, 0xad, 0xa9, 0x63, 0x47, 0xc7, 0x4e, + 0x61, 0xb9, 0xb1, 0xac, 0x78, 0x9a, 0x5a, 0xb2, 0xec, 0x60, 0x9f, 0x2c, 0xf4, 0x35, 0x78, 0x0d, + 0xde, 0x87, 0xa7, 0xe1, 0x02, 0x9d, 0xc4, 0xc9, 0x6e, 0xbb, 0xd1, 0x4a, 0x5c, 0x65, 0xe6, 0x9b, + 0xef, 0xcc, 0x99, 0x7c, 0xdf, 0xf8, 0x80, 0xb3, 0x2c, 0xcb, 0x65, 0x4e, 0xe3, 0x65, 0x99, 0x27, + 0xc5, 0x72, 0x5c, 0x56, 0xcb, 0xf3, 0x64, 0xb5, 0xa2, 0x62, 0x99, 0x15, 0x74, 0x9e, 0x15, 0x92, + 0xaa, 0x22, 0xc9, 0xcf, 0xd7, 0x55, 0x7e, 0x4b, 0x72, 0x71, 0xb7, 0x0f, 0xe2, 0x9a, 0xaa, 0xb7, + 0xd9, 0x82, 0xc6, 0xab, 0xaa, 0x94, 0x25, 0xf6, 0xf7, 0x67, 0x86, 0x7f, 0xeb, 0x70, 0x3a, 0x17, + 0xde, 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0x5f, 0x4c, 0xd7, 0xb5, 0xbc, 0x49, 0xf2, 0x2c, 0x4d, + 0x24, 0xa9, 0xed, 0xa1, 0xca, 0xa6, 0x4a, 0x66, 0xb7, 0xd9, 0x22, 0x91, 0x64, 0xf6, 0xdf, 0xeb, + 0xfc, 0x71, 0xea, 0xf3, 0x97, 0xd0, 0xd9, 0xfe, 0x0f, 0x25, 0xc6, 0x35, 0xdd, 0x9b, 0xad, 0xad, + 0x18, 0xd7, 0x74, 0x8f, 0xa7, 0xd0, 0xbe, 0x49, 0xf2, 0x35, 0x99, 0xed, 0x0d, 0xb6, 0x4d, 0x86, + 0x1e, 0x3c, 0x79, 0xa0, 0x26, 0x76, 0xc1, 0x78, 0xcd, 0x23, 0xa6, 0x61, 0x0f, 0x5a, 0xb3, 0x20, + 0x8c, 0x98, 0xae, 0xa2, 0x2b, 0x6e, 0x39, 0xcc, 0x50, 0xc5, 0xd9, 0x3c, 0x62, 0x2d, 0xb5, 0x2e, + 0x0e, 0xf7, 0x78, 0xc4, 0x59, 0x1b, 0xfb, 0xd0, 0x9e, 0x59, 0x91, 0x7d, 0xc5, 0x3a, 0xc3, 0x7f, + 0x0d, 0x60, 0xef, 0x84, 0xad, 0x57, 0x65, 0x51, 0x13, 0x9a, 0xd0, 0xb5, 0xcb, 0x42, 0x52, 0x21, + 0x4d, 0x4d, 0x49, 0x29, 0x76, 0x29, 0x7e, 0x09, 0x10, 0xca, 0x44, 0xae, 0x6b, 0xf5, 0x71, 0x6c, + 0x8c, 0x6b, 0x8b, 0xf7, 0x10, 0xbc, 0x78, 0xe4, 0xdf, 0xf0, 0xa0, 0x7f, 0xdb, 0x6b, 0x1e, 0x1b, + 0xf8, 0x03, 0x3c, 0x6b, 0xae, 0xf9, 0x25, 0xa9, 0xa3, 0x6a, 0x5d, 0x28, 0x81, 0xb6, 0x66, 0xf6, + 0x2e, 0xda, 0xb7, 0x49, 0x5e, 0x93, 0x38, 0xc4, 0xc0, 0x6f, 0xe0, 0x29, 0xff, 0x73, 0xfb, 0x02, + 0x5c, 0xde, 0x4b, 0xaa, 0x43, 0x35, 0xb8, 0x72, 0xd7, 0x10, 0x1f, 0x16, 0xf0, 0x7b, 0x38, 0x7b, + 0x00, 0x0a, 0x5a, 0x50, 0xf6, 0x96, 0xd2, 0x8d, 0xcd, 0x86, 0x38, 0x5c, 0x54, 0xfb, 0x30, 0xc9, + 0x8a, 0x24, 0x57, 0xfb, 0xaa, 0xec, 0xed, 0x8b, 0x7d, 0x8e, 0xdf, 0x01, 0x5a, 0xab, 0xcc, 0x5e, + 0xad, 0xa7, 0x59, 0x9e, 0x67, 0x35, 0x2d, 0xca, 0x22, 0xad, 0x4d, 0x50, 0xed, 0x2e, 0xb4, 0x97, + 0xe2, 0x40, 0x11, 0xbf, 0x86, 0x63, 0x6b, 0x95, 0xbd, 0x9b, 0xf6, 0x68, 0x47, 0x7e, 0x00, 0xe3, + 0xb7, 0xc0, 0x76, 0xf9, 0x7e, 0xcc, 0xe3, 0x1d, 0xf5, 0x83, 0xd2, 0xff, 0x5f, 0xa6, 0x4b, 0xf8, + 0xad, 0xb7, 0x7b, 0x2a, 0xff, 0x0b, 0x00, 0x00, 0xff, 0xff, 0x1d, 0x9f, 0x6d, 0x24, 0x63, 0x05, + 0x00, 0x00, +} diff --git a/vendor/google.golang.org/appengine/internal/urlfetch/urlfetch_service.proto b/vendor/google.golang.org/appengine/internal/urlfetch/urlfetch_service.proto new file mode 100644 index 000000000..f695edf6a --- /dev/null +++ b/vendor/google.golang.org/appengine/internal/urlfetch/urlfetch_service.proto @@ -0,0 +1,64 @@ +syntax = "proto2"; +option go_package = "urlfetch"; + +package appengine; + +message URLFetchServiceError { + enum ErrorCode { + OK = 0; + INVALID_URL = 1; + FETCH_ERROR = 2; + UNSPECIFIED_ERROR = 3; + RESPONSE_TOO_LARGE = 4; + DEADLINE_EXCEEDED = 5; + SSL_CERTIFICATE_ERROR = 6; + DNS_ERROR = 7; + CLOSED = 8; + INTERNAL_TRANSIENT_ERROR = 9; + TOO_MANY_REDIRECTS = 10; + MALFORMED_REPLY = 11; + CONNECTION_ERROR = 12; + } +} + +message URLFetchRequest { + enum RequestMethod { + GET = 1; + POST = 2; + HEAD = 3; + PUT = 4; + DELETE = 5; + PATCH = 6; + } + required RequestMethod Method = 1; + required string Url = 2; + repeated group Header = 3 { + required string Key = 4; + required string Value = 5; + } + optional bytes Payload = 6 [ctype=CORD]; + + optional bool FollowRedirects = 7 [default=true]; + + optional double Deadline = 8; + + optional bool MustValidateServerCertificate = 9 [default=true]; +} + +message URLFetchResponse { + optional bytes Content = 1; + required int32 StatusCode = 2; + repeated group Header = 3 { + required string Key = 4; + required string Value = 5; + } + optional bool ContentWasTruncated = 6 [default=false]; + optional int64 ExternalBytesSent = 7; + optional int64 ExternalBytesReceived = 8; + + optional string FinalUrl = 9; + + optional int64 ApiCpuMilliseconds = 10 [default=0]; + optional int64 ApiBytesSent = 11 [default=0]; + optional int64 ApiBytesReceived = 12 [default=0]; +} diff --git a/vendor/google.golang.org/appengine/log/log.go b/vendor/google.golang.org/appengine/log/log.go index fdf7b4d73..731ad8c36 100644 --- a/vendor/google.golang.org/appengine/log/log.go +++ b/vendor/google.golang.org/appengine/log/log.go @@ -26,7 +26,7 @@ Example: log.Infof(c, "Saw record %v", record) } */ -package log +package log // import "google.golang.org/appengine/log" import ( "errors" diff --git a/vendor/google.golang.org/appengine/mail/mail.go b/vendor/google.golang.org/appengine/mail/mail.go index 66d036b8f..1ce1e8706 100644 --- a/vendor/google.golang.org/appengine/mail/mail.go +++ b/vendor/google.golang.org/appengine/mail/mail.go @@ -17,7 +17,7 @@ Example: log.Errorf(c, "Alas, my user, the email failed to sendeth: %v", err) } */ -package mail +package mail // import "google.golang.org/appengine/mail" import ( "net/mail" diff --git a/vendor/google.golang.org/appengine/travis_install.sh b/vendor/google.golang.org/appengine/travis_install.sh old mode 100755 new mode 100644 diff --git a/vendor/google.golang.org/appengine/travis_test.sh b/vendor/google.golang.org/appengine/travis_test.sh old mode 100755 new mode 100644 diff --git a/vendor/google.golang.org/appengine/urlfetch/urlfetch.go b/vendor/google.golang.org/appengine/urlfetch/urlfetch.go new file mode 100644 index 000000000..6ffe1e6d9 --- /dev/null +++ b/vendor/google.golang.org/appengine/urlfetch/urlfetch.go @@ -0,0 +1,210 @@ +// Copyright 2011 Google Inc. All rights reserved. +// Use of this source code is governed by the Apache 2.0 +// license that can be found in the LICENSE file. + +// Package urlfetch provides an http.RoundTripper implementation +// for fetching URLs via App Engine's urlfetch service. +package urlfetch // import "google.golang.org/appengine/urlfetch" + +import ( + "errors" + "fmt" + "io" + "io/ioutil" + "net/http" + "net/url" + "strconv" + "strings" + "time" + + "github.com/golang/protobuf/proto" + "golang.org/x/net/context" + + "google.golang.org/appengine/internal" + pb "google.golang.org/appengine/internal/urlfetch" +) + +// Transport is an implementation of http.RoundTripper for +// App Engine. Users should generally create an http.Client using +// this transport and use the Client rather than using this transport +// directly. +type Transport struct { + Context context.Context + + // Controls whether the application checks the validity of SSL certificates + // over HTTPS connections. A value of false (the default) instructs the + // application to send a request to the server only if the certificate is + // valid and signed by a trusted certificate authority (CA), and also + // includes a hostname that matches the certificate. A value of true + // instructs the application to perform no certificate validation. + AllowInvalidServerCertificate bool +} + +// Verify statically that *Transport implements http.RoundTripper. +var _ http.RoundTripper = (*Transport)(nil) + +// Client returns an *http.Client using a default urlfetch Transport. This +// client will have the default deadline of 5 seconds, and will check the +// validity of SSL certificates. +// +// Any deadline of the provided context will be used for requests through this client; +// if the client does not have a deadline then a 5 second default is used. +func Client(ctx context.Context) *http.Client { + return &http.Client{ + Transport: &Transport{ + Context: ctx, + }, + } +} + +type bodyReader struct { + content []byte + truncated bool + closed bool +} + +// ErrTruncatedBody is the error returned after the final Read() from a +// response's Body if the body has been truncated by App Engine's proxy. +var ErrTruncatedBody = errors.New("urlfetch: truncated body") + +func statusCodeToText(code int) string { + if t := http.StatusText(code); t != "" { + return t + } + return strconv.Itoa(code) +} + +func (br *bodyReader) Read(p []byte) (n int, err error) { + if br.closed { + if br.truncated { + return 0, ErrTruncatedBody + } + return 0, io.EOF + } + n = copy(p, br.content) + if n > 0 { + br.content = br.content[n:] + return + } + if br.truncated { + br.closed = true + return 0, ErrTruncatedBody + } + return 0, io.EOF +} + +func (br *bodyReader) Close() error { + br.closed = true + br.content = nil + return nil +} + +// A map of the URL Fetch-accepted methods that take a request body. +var methodAcceptsRequestBody = map[string]bool{ + "POST": true, + "PUT": true, + "PATCH": true, +} + +// urlString returns a valid string given a URL. This function is necessary because +// the String method of URL doesn't correctly handle URLs with non-empty Opaque values. +// See http://code.google.com/p/go/issues/detail?id=4860. +func urlString(u *url.URL) string { + if u.Opaque == "" || strings.HasPrefix(u.Opaque, "//") { + return u.String() + } + aux := *u + aux.Opaque = "//" + aux.Host + aux.Opaque + return aux.String() +} + +// RoundTrip issues a single HTTP request and returns its response. Per the +// http.RoundTripper interface, RoundTrip only returns an error if there +// was an unsupported request or the URL Fetch proxy fails. +// Note that HTTP response codes such as 5xx, 403, 404, etc are not +// errors as far as the transport is concerned and will be returned +// with err set to nil. +func (t *Transport) RoundTrip(req *http.Request) (res *http.Response, err error) { + methNum, ok := pb.URLFetchRequest_RequestMethod_value[req.Method] + if !ok { + return nil, fmt.Errorf("urlfetch: unsupported HTTP method %q", req.Method) + } + + method := pb.URLFetchRequest_RequestMethod(methNum) + + freq := &pb.URLFetchRequest{ + Method: &method, + Url: proto.String(urlString(req.URL)), + FollowRedirects: proto.Bool(false), // http.Client's responsibility + MustValidateServerCertificate: proto.Bool(!t.AllowInvalidServerCertificate), + } + if deadline, ok := t.Context.Deadline(); ok { + freq.Deadline = proto.Float64(deadline.Sub(time.Now()).Seconds()) + } + + for k, vals := range req.Header { + for _, val := range vals { + freq.Header = append(freq.Header, &pb.URLFetchRequest_Header{ + Key: proto.String(k), + Value: proto.String(val), + }) + } + } + if methodAcceptsRequestBody[req.Method] && req.Body != nil { + // Avoid a []byte copy if req.Body has a Bytes method. + switch b := req.Body.(type) { + case interface { + Bytes() []byte + }: + freq.Payload = b.Bytes() + default: + freq.Payload, err = ioutil.ReadAll(req.Body) + if err != nil { + return nil, err + } + } + } + + fres := &pb.URLFetchResponse{} + if err := internal.Call(t.Context, "urlfetch", "Fetch", freq, fres); err != nil { + return nil, err + } + + res = &http.Response{} + res.StatusCode = int(*fres.StatusCode) + res.Status = fmt.Sprintf("%d %s", res.StatusCode, statusCodeToText(res.StatusCode)) + res.Header = make(http.Header) + res.Request = req + + // Faked: + res.ProtoMajor = 1 + res.ProtoMinor = 1 + res.Proto = "HTTP/1.1" + res.Close = true + + for _, h := range fres.Header { + hkey := http.CanonicalHeaderKey(*h.Key) + hval := *h.Value + if hkey == "Content-Length" { + // Will get filled in below for all but HEAD requests. + if req.Method == "HEAD" { + res.ContentLength, _ = strconv.ParseInt(hval, 10, 64) + } + continue + } + res.Header.Add(hkey, hval) + } + + if req.Method != "HEAD" { + res.ContentLength = int64(len(fres.Content)) + } + + truncated := fres.GetContentWasTruncated() + res.Body = &bodyReader{content: fres.Content, truncated: truncated} + return +} + +func init() { + internal.RegisterErrorCodeMap("urlfetch", pb.URLFetchServiceError_ErrorCode_name) + internal.RegisterTimeoutErrorCode("urlfetch", int32(pb.URLFetchServiceError_DEADLINE_EXCEEDED)) +} diff --git a/vendor/google.golang.org/appengine/user/user.go b/vendor/google.golang.org/appengine/user/user.go index 622b61020..eb76f59b7 100644 --- a/vendor/google.golang.org/appengine/user/user.go +++ b/vendor/google.golang.org/appengine/user/user.go @@ -3,7 +3,7 @@ // license that can be found in the LICENSE file. // Package user provides a client for App Engine's user authentication service. -package user +package user // import "google.golang.org/appengine/user" import ( "strings" diff --git a/vendor/google.golang.org/grpc/binarylog/grpc_binarylog_v1/binarylog.pb.go b/vendor/google.golang.org/grpc/binarylog/grpc_binarylog_v1/binarylog.pb.go index a65fbe7e7..f393bb661 100644 --- a/vendor/google.golang.org/grpc/binarylog/grpc_binarylog_v1/binarylog.pb.go +++ b/vendor/google.golang.org/grpc/binarylog/grpc_binarylog_v1/binarylog.pb.go @@ -1,7 +1,7 @@ // Code generated by protoc-gen-go. DO NOT EDIT. // source: grpc/binarylog/grpc_binarylog_v1/binarylog.proto -package grpc_binarylog_v1 +package grpc_binarylog_v1 // import "google.golang.org/grpc/binarylog/grpc_binarylog_v1" import proto "github.com/golang/protobuf/proto" import fmt "fmt" diff --git a/vendor/google.golang.org/grpc/codegen.sh b/vendor/google.golang.org/grpc/codegen.sh old mode 100755 new mode 100644 diff --git a/vendor/google.golang.org/grpc/codes/codes.go b/vendor/google.golang.org/grpc/codes/codes.go index 93458ce79..02738839d 100644 --- a/vendor/google.golang.org/grpc/codes/codes.go +++ b/vendor/google.golang.org/grpc/codes/codes.go @@ -18,7 +18,7 @@ // Package codes defines the canonical error codes used by gRPC. It is // consistent across various languages. -package codes +package codes // import "google.golang.org/grpc/codes" import ( "fmt" diff --git a/vendor/google.golang.org/grpc/credentials/credentials.go b/vendor/google.golang.org/grpc/credentials/credentials.go index 4bee74ed9..845ce5d21 100644 --- a/vendor/google.golang.org/grpc/credentials/credentials.go +++ b/vendor/google.golang.org/grpc/credentials/credentials.go @@ -20,7 +20,7 @@ // which encapsulate all the state needed by a client to authenticate with a // server and make various assertions, e.g., about the client's identity, role, // or whether it is authorized to make a particular call. -package credentials +package credentials // import "google.golang.org/grpc/credentials" import ( "context" diff --git a/vendor/google.golang.org/grpc/doc.go b/vendor/google.golang.org/grpc/doc.go index e153b2c39..187adbb11 100644 --- a/vendor/google.golang.org/grpc/doc.go +++ b/vendor/google.golang.org/grpc/doc.go @@ -21,4 +21,4 @@ Package grpc implements an RPC system called gRPC. See grpc.io for more information about gRPC. */ -package grpc +package grpc // import "google.golang.org/grpc" diff --git a/vendor/google.golang.org/grpc/grpclog/grpclog.go b/vendor/google.golang.org/grpc/grpclog/grpclog.go index 77e22a034..874ea6d98 100644 --- a/vendor/google.golang.org/grpc/grpclog/grpclog.go +++ b/vendor/google.golang.org/grpc/grpclog/grpclog.go @@ -24,7 +24,7 @@ // In the default logger, // severity level can be set by environment variable GRPC_GO_LOG_SEVERITY_LEVEL, // verbosity level can be set by GRPC_GO_LOG_VERBOSITY_LEVEL. -package grpclog +package grpclog // import "google.golang.org/grpc/grpclog" import "os" diff --git a/vendor/google.golang.org/grpc/install_gae.sh b/vendor/google.golang.org/grpc/install_gae.sh old mode 100755 new mode 100644 diff --git a/vendor/google.golang.org/grpc/internal/binarylog/regenerate.sh b/vendor/google.golang.org/grpc/internal/binarylog/regenerate.sh old mode 100755 new mode 100644 diff --git a/vendor/google.golang.org/grpc/metadata/metadata.go b/vendor/google.golang.org/grpc/metadata/metadata.go index b4c0b375e..cf6d1b947 100644 --- a/vendor/google.golang.org/grpc/metadata/metadata.go +++ b/vendor/google.golang.org/grpc/metadata/metadata.go @@ -19,7 +19,7 @@ // Package metadata define the structure of the metadata supported by gRPC library. // Please refer to https://github.com/grpc/grpc/blob/master/doc/PROTOCOL-HTTP2.md // for more information about custom-metadata. -package metadata +package metadata // import "google.golang.org/grpc/metadata" import ( "context" diff --git a/vendor/google.golang.org/grpc/resolver/dns/dns_resolver.go b/vendor/google.golang.org/grpc/resolver/dns/dns_resolver.go deleted file mode 100644 index 14aa6f20a..000000000 --- a/vendor/google.golang.org/grpc/resolver/dns/dns_resolver.go +++ /dev/null @@ -1,36 +0,0 @@ -/* - * - * Copyright 2018 gRPC authors. - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - */ - -// Package dns implements a dns resolver to be installed as the default resolver -// in grpc. -// -// Deprecated: this package is imported by grpc and should not need to be -// imported directly by users. -package dns - -import ( - "google.golang.org/grpc/internal/resolver/dns" - "google.golang.org/grpc/resolver" -) - -// NewBuilder creates a dnsBuilder which is used to factory DNS resolvers. -// -// Deprecated: import grpc and use resolver.Get("dns") instead. -func NewBuilder() resolver.Builder { - return dns.NewBuilder() -} diff --git a/vendor/google.golang.org/grpc/resolver/passthrough/passthrough.go b/vendor/google.golang.org/grpc/resolver/passthrough/passthrough.go deleted file mode 100644 index c8a0c3daa..000000000 --- a/vendor/google.golang.org/grpc/resolver/passthrough/passthrough.go +++ /dev/null @@ -1,26 +0,0 @@ -/* - * - * Copyright 2017 gRPC authors. - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - */ - -// Package passthrough implements a pass-through resolver. It sends the target -// name without scheme back to gRPC as resolved address. -// -// Deprecated: this package is imported by grpc and should not need to be -// imported directly by users. -package passthrough - -import _ "google.golang.org/grpc/internal/resolver/passthrough" // import for side effects after package was moved diff --git a/vendor/google.golang.org/grpc/stats/stats.go b/vendor/google.golang.org/grpc/stats/stats.go index 171547570..9e22c393f 100644 --- a/vendor/google.golang.org/grpc/stats/stats.go +++ b/vendor/google.golang.org/grpc/stats/stats.go @@ -21,7 +21,7 @@ // Package stats is for collecting and reporting various network and RPC stats. // This package is for monitoring purpose only. All fields are read-only. // All APIs are experimental. -package stats +package stats // import "google.golang.org/grpc/stats" import ( "context" diff --git a/vendor/google.golang.org/grpc/vet.sh b/vendor/google.golang.org/grpc/vet.sh old mode 100755 new mode 100644 diff --git a/vendor/honnef.co/go/tools/LICENSE-THIRD-PARTY b/vendor/honnef.co/go/tools/LICENSE-THIRD-PARTY index 623d85e85..7c241b71a 100644 --- a/vendor/honnef.co/go/tools/LICENSE-THIRD-PARTY +++ b/vendor/honnef.co/go/tools/LICENSE-THIRD-PARTY @@ -75,7 +75,7 @@ resulting binaries. These projects are: limitations under the License. -* github.com/kisielk/gotool - https://github.com/kisielk/gotool +* github.com/kisielk/gotool – https://github.com/kisielk/gotool Copyright (c) 2013 Kamil Kisiel @@ -224,61 +224,3 @@ resulting binaries. These projects are: (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. -* gogrep - https://github.com/mvdan/gogrep - - Copyright (c) 2017, Daniel Martí. All rights reserved. - - Redistribution and use in source and binary forms, with or without - modification, are permitted provided that the following conditions are - met: - - * Redistributions of source code must retain the above copyright - notice, this list of conditions and the following disclaimer. - * Redistributions in binary form must reproduce the above - copyright notice, this list of conditions and the following disclaimer - in the documentation and/or other materials provided with the - distribution. - * Neither the name of the copyright holder nor the names of its - contributors may be used to endorse or promote products derived from - this software without specific prior written permission. - - THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - -* gosmith - https://github.com/dvyukov/gosmith - - Copyright (c) 2014 Dmitry Vyukov. All rights reserved. - - Redistribution and use in source and binary forms, with or without - modification, are permitted provided that the following conditions are - met: - - * Redistributions of source code must retain the above copyright - notice, this list of conditions and the following disclaimer. - * Redistributions in binary form must reproduce the above - copyright notice, this list of conditions and the following disclaimer - in the documentation and/or other materials provided with the - distribution. - * The name of Dmitry Vyukov may be used to endorse or promote - products derived from this software without specific prior written permission. - - THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. diff --git a/vendor/honnef.co/go/tools/cmd/staticcheck/staticcheck.go b/vendor/honnef.co/go/tools/cmd/staticcheck/staticcheck.go index 4621f32ed..4f504dc39 100644 --- a/vendor/honnef.co/go/tools/cmd/staticcheck/staticcheck.go +++ b/vendor/honnef.co/go/tools/cmd/staticcheck/staticcheck.go @@ -1,5 +1,5 @@ // staticcheck analyses Go code and makes it better. -package main +package main // import "honnef.co/go/tools/cmd/staticcheck" import ( "log" diff --git a/vendor/honnef.co/go/tools/code/code.go b/vendor/honnef.co/go/tools/code/code.go deleted file mode 100644 index 6f4df8b9a..000000000 --- a/vendor/honnef.co/go/tools/code/code.go +++ /dev/null @@ -1,481 +0,0 @@ -// Package code answers structural and type questions about Go code. -package code - -import ( - "flag" - "fmt" - "go/ast" - "go/constant" - "go/token" - "go/types" - "strings" - - "golang.org/x/tools/go/analysis" - "golang.org/x/tools/go/analysis/passes/inspect" - "golang.org/x/tools/go/ast/astutil" - "golang.org/x/tools/go/ast/inspector" - "honnef.co/go/tools/facts" - "honnef.co/go/tools/go/types/typeutil" - "honnef.co/go/tools/ir" - "honnef.co/go/tools/lint" -) - -type Positioner interface { - Pos() token.Pos -} - -func CallName(call *ir.CallCommon) string { - if call.IsInvoke() { - return "" - } - switch v := call.Value.(type) { - case *ir.Function: - fn, ok := v.Object().(*types.Func) - if !ok { - return "" - } - return lint.FuncName(fn) - case *ir.Builtin: - return v.Name() - } - return "" -} - -func IsCallTo(call *ir.CallCommon, name string) bool { return CallName(call) == name } - -func IsCallToAny(call *ir.CallCommon, names ...string) bool { - q := CallName(call) - for _, name := range names { - if q == name { - return true - } - } - return false -} - -func IsType(T types.Type, name string) bool { return types.TypeString(T, nil) == name } - -func FilterDebug(instr []ir.Instruction) []ir.Instruction { - var out []ir.Instruction - for _, ins := range instr { - if _, ok := ins.(*ir.DebugRef); !ok { - out = append(out, ins) - } - } - return out -} - -func IsExample(fn *ir.Function) bool { - if !strings.HasPrefix(fn.Name(), "Example") { - return false - } - f := fn.Prog.Fset.File(fn.Pos()) - if f == nil { - return false - } - return strings.HasSuffix(f.Name(), "_test.go") -} - -func IsPointerLike(T types.Type) bool { - switch T := T.Underlying().(type) { - case *types.Interface, *types.Chan, *types.Map, *types.Signature, *types.Pointer: - return true - case *types.Basic: - return T.Kind() == types.UnsafePointer - } - return false -} - -func IsIdent(expr ast.Expr, ident string) bool { - id, ok := expr.(*ast.Ident) - return ok && id.Name == ident -} - -// isBlank returns whether id is the blank identifier "_". -// If id == nil, the answer is false. -func IsBlank(id ast.Expr) bool { - ident, _ := id.(*ast.Ident) - return ident != nil && ident.Name == "_" -} - -func IsIntLiteral(expr ast.Expr, literal string) bool { - lit, ok := expr.(*ast.BasicLit) - return ok && lit.Kind == token.INT && lit.Value == literal -} - -// Deprecated: use IsIntLiteral instead -func IsZero(expr ast.Expr) bool { - return IsIntLiteral(expr, "0") -} - -func IsOfType(pass *analysis.Pass, expr ast.Expr, name string) bool { - return IsType(pass.TypesInfo.TypeOf(expr), name) -} - -func IsInTest(pass *analysis.Pass, node Positioner) bool { - // FIXME(dh): this doesn't work for global variables with - // initializers - f := pass.Fset.File(node.Pos()) - return f != nil && strings.HasSuffix(f.Name(), "_test.go") -} - -// IsMain reports whether the package being processed is a package -// main. -func IsMain(pass *analysis.Pass) bool { - return pass.Pkg.Name() == "main" -} - -// IsMainLike reports whether the package being processed is a -// main-like package. A main-like package is a package that is -// package main, or that is intended to be used by a tool framework -// such as cobra to implement a command. -// -// Note that this function errs on the side of false positives; it may -// return true for packages that aren't main-like. IsMainLike is -// intended for analyses that wish to suppress diagnostics for -// main-like packages to avoid false positives. -func IsMainLike(pass *analysis.Pass) bool { - if pass.Pkg.Name() == "main" { - return true - } - for _, imp := range pass.Pkg.Imports() { - if imp.Path() == "github.com/spf13/cobra" { - return true - } - } - return false -} - -func SelectorName(pass *analysis.Pass, expr *ast.SelectorExpr) string { - info := pass.TypesInfo - sel := info.Selections[expr] - if sel == nil { - if x, ok := expr.X.(*ast.Ident); ok { - pkg, ok := info.ObjectOf(x).(*types.PkgName) - if !ok { - // This shouldn't happen - return fmt.Sprintf("%s.%s", x.Name, expr.Sel.Name) - } - return fmt.Sprintf("%s.%s", pkg.Imported().Path(), expr.Sel.Name) - } - panic(fmt.Sprintf("unsupported selector: %v", expr)) - } - return fmt.Sprintf("(%s).%s", sel.Recv(), sel.Obj().Name()) -} - -func IsNil(pass *analysis.Pass, expr ast.Expr) bool { - return pass.TypesInfo.Types[expr].IsNil() -} - -func BoolConst(pass *analysis.Pass, expr ast.Expr) bool { - val := pass.TypesInfo.ObjectOf(expr.(*ast.Ident)).(*types.Const).Val() - return constant.BoolVal(val) -} - -func IsBoolConst(pass *analysis.Pass, expr ast.Expr) bool { - // We explicitly don't support typed bools because more often than - // not, custom bool types are used as binary enums and the - // explicit comparison is desired. - - ident, ok := expr.(*ast.Ident) - if !ok { - return false - } - obj := pass.TypesInfo.ObjectOf(ident) - c, ok := obj.(*types.Const) - if !ok { - return false - } - basic, ok := c.Type().(*types.Basic) - if !ok { - return false - } - if basic.Kind() != types.UntypedBool && basic.Kind() != types.Bool { - return false - } - return true -} - -func ExprToInt(pass *analysis.Pass, expr ast.Expr) (int64, bool) { - tv := pass.TypesInfo.Types[expr] - if tv.Value == nil { - return 0, false - } - if tv.Value.Kind() != constant.Int { - return 0, false - } - return constant.Int64Val(tv.Value) -} - -func ExprToString(pass *analysis.Pass, expr ast.Expr) (string, bool) { - val := pass.TypesInfo.Types[expr].Value - if val == nil { - return "", false - } - if val.Kind() != constant.String { - return "", false - } - return constant.StringVal(val), true -} - -// Dereference returns a pointer's element type; otherwise it returns -// T. -func Dereference(T types.Type) types.Type { - if p, ok := T.Underlying().(*types.Pointer); ok { - return p.Elem() - } - return T -} - -// DereferenceR returns a pointer's element type; otherwise it returns -// T. If the element type is itself a pointer, DereferenceR will be -// applied recursively. -func DereferenceR(T types.Type) types.Type { - if p, ok := T.Underlying().(*types.Pointer); ok { - return DereferenceR(p.Elem()) - } - return T -} - -func CallNameAST(pass *analysis.Pass, call *ast.CallExpr) string { - switch fun := astutil.Unparen(call.Fun).(type) { - case *ast.SelectorExpr: - fn, ok := pass.TypesInfo.ObjectOf(fun.Sel).(*types.Func) - if !ok { - return "" - } - return lint.FuncName(fn) - case *ast.Ident: - obj := pass.TypesInfo.ObjectOf(fun) - switch obj := obj.(type) { - case *types.Func: - return lint.FuncName(obj) - case *types.Builtin: - return obj.Name() - default: - return "" - } - default: - return "" - } -} - -func IsCallToAST(pass *analysis.Pass, node ast.Node, name string) bool { - call, ok := node.(*ast.CallExpr) - if !ok { - return false - } - return CallNameAST(pass, call) == name -} - -func IsCallToAnyAST(pass *analysis.Pass, node ast.Node, names ...string) bool { - call, ok := node.(*ast.CallExpr) - if !ok { - return false - } - q := CallNameAST(pass, call) - for _, name := range names { - if q == name { - return true - } - } - return false -} - -func Preamble(f *ast.File) string { - cutoff := f.Package - if f.Doc != nil { - cutoff = f.Doc.Pos() - } - var out []string - for _, cmt := range f.Comments { - if cmt.Pos() >= cutoff { - break - } - out = append(out, cmt.Text()) - } - return strings.Join(out, "\n") -} - -func GroupSpecs(fset *token.FileSet, specs []ast.Spec) [][]ast.Spec { - if len(specs) == 0 { - return nil - } - groups := make([][]ast.Spec, 1) - groups[0] = append(groups[0], specs[0]) - - for _, spec := range specs[1:] { - g := groups[len(groups)-1] - if fset.PositionFor(spec.Pos(), false).Line-1 != - fset.PositionFor(g[len(g)-1].End(), false).Line { - - groups = append(groups, nil) - } - - groups[len(groups)-1] = append(groups[len(groups)-1], spec) - } - - return groups -} - -func IsObject(obj types.Object, name string) bool { - var path string - if pkg := obj.Pkg(); pkg != nil { - path = pkg.Path() + "." - } - return path+obj.Name() == name -} - -type Field struct { - Var *types.Var - Tag string - Path []int -} - -// FlattenFields recursively flattens T and embedded structs, -// returning a list of fields. If multiple fields with the same name -// exist, all will be returned. -func FlattenFields(T *types.Struct) []Field { - return flattenFields(T, nil, nil) -} - -func flattenFields(T *types.Struct, path []int, seen map[types.Type]bool) []Field { - if seen == nil { - seen = map[types.Type]bool{} - } - if seen[T] { - return nil - } - seen[T] = true - var out []Field - for i := 0; i < T.NumFields(); i++ { - field := T.Field(i) - tag := T.Tag(i) - np := append(path[:len(path):len(path)], i) - if field.Anonymous() { - if s, ok := Dereference(field.Type()).Underlying().(*types.Struct); ok { - out = append(out, flattenFields(s, np, seen)...) - } - } else { - out = append(out, Field{field, tag, np}) - } - } - return out -} - -func File(pass *analysis.Pass, node Positioner) *ast.File { - m := pass.ResultOf[facts.TokenFile].(map[*token.File]*ast.File) - return m[pass.Fset.File(node.Pos())] -} - -// IsGenerated reports whether pos is in a generated file, It ignores -// //line directives. -func IsGenerated(pass *analysis.Pass, pos token.Pos) bool { - _, ok := Generator(pass, pos) - return ok -} - -// Generator returns the generator that generated the file containing -// pos. It ignores //line directives. -func Generator(pass *analysis.Pass, pos token.Pos) (facts.Generator, bool) { - file := pass.Fset.PositionFor(pos, false).Filename - m := pass.ResultOf[facts.Generated].(map[string]facts.Generator) - g, ok := m[file] - return g, ok -} - -// MayHaveSideEffects reports whether expr may have side effects. If -// the purity argument is nil, this function implements a purely -// syntactic check, meaning that any function call may have side -// effects, regardless of the called function's body. Otherwise, -// purity will be consulted to determine the purity of function calls. -func MayHaveSideEffects(pass *analysis.Pass, expr ast.Expr, purity facts.PurityResult) bool { - switch expr := expr.(type) { - case *ast.BadExpr: - return true - case *ast.Ellipsis: - return MayHaveSideEffects(pass, expr.Elt, purity) - case *ast.FuncLit: - // the literal itself cannot have side ffects, only calling it - // might, which is handled by CallExpr. - return false - case *ast.ArrayType, *ast.StructType, *ast.FuncType, *ast.InterfaceType, *ast.MapType, *ast.ChanType: - // types cannot have side effects - return false - case *ast.BasicLit: - return false - case *ast.BinaryExpr: - return MayHaveSideEffects(pass, expr.X, purity) || MayHaveSideEffects(pass, expr.Y, purity) - case *ast.CallExpr: - if purity == nil { - return true - } - switch obj := typeutil.Callee(pass.TypesInfo, expr).(type) { - case *types.Func: - if _, ok := purity[obj]; !ok { - return true - } - case *types.Builtin: - switch obj.Name() { - case "len", "cap": - default: - return true - } - default: - return true - } - for _, arg := range expr.Args { - if MayHaveSideEffects(pass, arg, purity) { - return true - } - } - return false - case *ast.CompositeLit: - if MayHaveSideEffects(pass, expr.Type, purity) { - return true - } - for _, elt := range expr.Elts { - if MayHaveSideEffects(pass, elt, purity) { - return true - } - } - return false - case *ast.Ident: - return false - case *ast.IndexExpr: - return MayHaveSideEffects(pass, expr.X, purity) || MayHaveSideEffects(pass, expr.Index, purity) - case *ast.KeyValueExpr: - return MayHaveSideEffects(pass, expr.Key, purity) || MayHaveSideEffects(pass, expr.Value, purity) - case *ast.SelectorExpr: - return MayHaveSideEffects(pass, expr.X, purity) - case *ast.SliceExpr: - return MayHaveSideEffects(pass, expr.X, purity) || - MayHaveSideEffects(pass, expr.Low, purity) || - MayHaveSideEffects(pass, expr.High, purity) || - MayHaveSideEffects(pass, expr.Max, purity) - case *ast.StarExpr: - return MayHaveSideEffects(pass, expr.X, purity) - case *ast.TypeAssertExpr: - return MayHaveSideEffects(pass, expr.X, purity) - case *ast.UnaryExpr: - if MayHaveSideEffects(pass, expr.X, purity) { - return true - } - return expr.Op == token.ARROW - case *ast.ParenExpr: - return MayHaveSideEffects(pass, expr.X, purity) - case nil: - return false - default: - panic(fmt.Sprintf("internal error: unhandled type %T", expr)) - } -} - -func IsGoVersion(pass *analysis.Pass, minor int) bool { - version := pass.Analyzer.Flags.Lookup("go").Value.(flag.Getter).Get().(int) - return version >= minor -} - -func Preorder(pass *analysis.Pass, fn func(ast.Node), types ...ast.Node) { - pass.ResultOf[inspect.Analyzer].(*inspector.Inspector).Preorder(types, fn) -} diff --git a/vendor/honnef.co/go/tools/config/config.go b/vendor/honnef.co/go/tools/config/config.go index 55115371b..c22093a6d 100644 --- a/vendor/honnef.co/go/tools/config/config.go +++ b/vendor/honnef.co/go/tools/config/config.go @@ -3,8 +3,6 @@ package config import ( "bytes" "fmt" - "go/ast" - "go/token" "os" "path/filepath" "reflect" @@ -14,57 +12,38 @@ import ( "golang.org/x/tools/go/analysis" ) -// Dir looks at a list of absolute file names, which should make up a -// single package, and returns the path of the directory that may -// contain a staticcheck.conf file. It returns the empty string if no -// such directory could be determined, for example because all files -// were located in Go's build cache. -func Dir(files []string) string { - if len(files) == 0 { - return "" - } - cache, err := os.UserCacheDir() - if err != nil { - cache = "" - } - var path string - for _, p := range files { - // FIXME(dh): using strings.HasPrefix isn't technically - // correct, but it should be good enough for now. - if cache != "" && strings.HasPrefix(p, cache) { - // File in the build cache of the standard Go build system - continue - } - path = p - break - } - - if path == "" { - // The package only consists of generated files. - return "" - } - - dir := filepath.Dir(path) - return dir -} - -func dirAST(files []*ast.File, fset *token.FileSet) string { - names := make([]string, len(files)) - for i, f := range files { - names[i] = fset.PositionFor(f.Pos(), true).Filename - } - return Dir(names) -} - var Analyzer = &analysis.Analyzer{ Name: "config", Doc: "loads configuration for the current package tree", Run: func(pass *analysis.Pass) (interface{}, error) { - dir := dirAST(pass.Files, pass.Fset) - if dir == "" { + if len(pass.Files) == 0 { + cfg := DefaultConfig + return &cfg, nil + } + cache, err := os.UserCacheDir() + if err != nil { + cache = "" + } + var path string + for _, f := range pass.Files { + p := pass.Fset.PositionFor(f.Pos(), true).Filename + // FIXME(dh): using strings.HasPrefix isn't technically + // correct, but it should be good enough for now. + if cache != "" && strings.HasPrefix(p, cache) { + // File in the build cache of the standard Go build system + continue + } + path = p + break + } + + if path == "" { + // The package only consists of generated files. cfg := DefaultConfig return &cfg, nil } + + dir := filepath.Dir(path) cfg, err := Load(dir) if err != nil { return nil, fmt.Errorf("error loading staticcheck.conf: %s", err) @@ -157,7 +136,7 @@ func (c Config) String() string { } var DefaultConfig = Config{ - Checks: []string{"all", "-ST1000", "-ST1003", "-ST1016", "-ST1020", "-ST1021", "-ST1022"}, + Checks: []string{"all", "-ST1000", "-ST1003", "-ST1016"}, Initialisms: []string{ "ACL", "API", "ASCII", "CPU", "CSS", "DNS", "EOF", "GUID", "HTML", "HTTP", "HTTPS", "ID", @@ -165,20 +144,20 @@ var DefaultConfig = Config{ "SMTP", "SQL", "SSH", "TCP", "TLS", "TTL", "UDP", "UI", "GID", "UID", "UUID", "URI", "URL", "UTF8", "VM", "XML", "XMPP", "XSRF", - "XSS", "SIP", "RTP", "AMQP", "DB", "TS", + "XSS", "SIP", "RTP", }, DotImportWhitelist: []string{}, HTTPStatusCodeWhitelist: []string{"200", "400", "404", "500"}, } -const ConfigName = "staticcheck.conf" +const configName = "staticcheck.conf" func parseConfigs(dir string) ([]Config, error) { var out []Config // TODO(dh): consider stopping at the GOPATH/module boundary for dir != "" { - f, err := os.Open(filepath.Join(dir, ConfigName)) + f, err := os.Open(filepath.Join(dir, configName)) if os.IsNotExist(err) { ndir := filepath.Dir(dir) if ndir == dir { diff --git a/vendor/honnef.co/go/tools/edit/edit.go b/vendor/honnef.co/go/tools/edit/edit.go deleted file mode 100644 index f4cfba234..000000000 --- a/vendor/honnef.co/go/tools/edit/edit.go +++ /dev/null @@ -1,67 +0,0 @@ -package edit - -import ( - "bytes" - "go/ast" - "go/format" - "go/token" - - "golang.org/x/tools/go/analysis" - "honnef.co/go/tools/pattern" -) - -type Ranger interface { - Pos() token.Pos - End() token.Pos -} - -type Range [2]token.Pos - -func (r Range) Pos() token.Pos { return r[0] } -func (r Range) End() token.Pos { return r[1] } - -func ReplaceWithString(fset *token.FileSet, old Ranger, new string) analysis.TextEdit { - return analysis.TextEdit{ - Pos: old.Pos(), - End: old.End(), - NewText: []byte(new), - } -} - -func ReplaceWithNode(fset *token.FileSet, old Ranger, new ast.Node) analysis.TextEdit { - buf := &bytes.Buffer{} - if err := format.Node(buf, fset, new); err != nil { - panic("internal error: " + err.Error()) - } - return analysis.TextEdit{ - Pos: old.Pos(), - End: old.End(), - NewText: buf.Bytes(), - } -} - -func ReplaceWithPattern(pass *analysis.Pass, after pattern.Pattern, state pattern.State, node Ranger) analysis.TextEdit { - r := pattern.NodeToAST(after.Root, state) - buf := &bytes.Buffer{} - format.Node(buf, pass.Fset, r) - return analysis.TextEdit{ - Pos: node.Pos(), - End: node.End(), - NewText: buf.Bytes(), - } -} - -func Delete(old Ranger) analysis.TextEdit { - return analysis.TextEdit{ - Pos: old.Pos(), - End: old.End(), - NewText: nil, - } -} - -func Fix(msg string, edits ...analysis.TextEdit) analysis.SuggestedFix { - return analysis.SuggestedFix{ - Message: msg, - TextEdits: edits, - } -} diff --git a/vendor/honnef.co/go/tools/facts/generated.go b/vendor/honnef.co/go/tools/facts/generated.go index 3e7aef110..1ed9563a3 100644 --- a/vendor/honnef.co/go/tools/facts/generated.go +++ b/vendor/honnef.co/go/tools/facts/generated.go @@ -55,10 +55,6 @@ func isGenerated(path string) (Generator, bool) { if strings.HasPrefix(text, `by "stringer `) { return Stringer, true } - if strings.HasPrefix(text, `by goyacc `) { - return Goyacc, true - } - return Unknown, true } if bytes.Equal(s, oldCgo) { diff --git a/vendor/honnef.co/go/tools/facts/purity.go b/vendor/honnef.co/go/tools/facts/purity.go index 099ee23e3..861ca4110 100644 --- a/vendor/honnef.co/go/tools/facts/purity.go +++ b/vendor/honnef.co/go/tools/facts/purity.go @@ -1,13 +1,14 @@ package facts import ( + "go/token" "go/types" "reflect" "golang.org/x/tools/go/analysis" "honnef.co/go/tools/functions" - "honnef.co/go/tools/internal/passes/buildir" - "honnef.co/go/tools/ir" + "honnef.co/go/tools/internal/passes/buildssa" + "honnef.co/go/tools/ssa" ) type IsPure struct{} @@ -21,7 +22,7 @@ var Purity = &analysis.Analyzer{ Name: "fact_purity", Doc: "Mark pure functions", Run: purity, - Requires: []*analysis.Analyzer{buildir.Analyzer}, + Requires: []*analysis.Analyzer{buildssa.Analyzer}, FactTypes: []analysis.Fact{(*IsPure)(nil)}, ResultType: reflect.TypeOf(PurityResult{}), } @@ -55,68 +56,65 @@ var pureStdlib = map[string]struct{}{ } func purity(pass *analysis.Pass) (interface{}, error) { - seen := map[*ir.Function]struct{}{} - irpkg := pass.ResultOf[buildir.Analyzer].(*buildir.IR).Pkg - var check func(fn *ir.Function) (ret bool) - check = func(fn *ir.Function) (ret bool) { - if fn.Object() == nil { + seen := map[*ssa.Function]struct{}{} + ssapkg := pass.ResultOf[buildssa.Analyzer].(*buildssa.SSA).Pkg + var check func(ssafn *ssa.Function) (ret bool) + check = func(ssafn *ssa.Function) (ret bool) { + if ssafn.Object() == nil { // TODO(dh): support closures return false } - if pass.ImportObjectFact(fn.Object(), new(IsPure)) { + if pass.ImportObjectFact(ssafn.Object(), new(IsPure)) { return true } - if fn.Pkg != irpkg { + if ssafn.Pkg != ssapkg { // Function is in another package but wasn't marked as // pure, ergo it isn't pure return false } // Break recursion - if _, ok := seen[fn]; ok { + if _, ok := seen[ssafn]; ok { return false } - seen[fn] = struct{}{} + seen[ssafn] = struct{}{} defer func() { if ret { - pass.ExportObjectFact(fn.Object(), &IsPure{}) + pass.ExportObjectFact(ssafn.Object(), &IsPure{}) } }() - if functions.IsStub(fn) { + if functions.IsStub(ssafn) { return false } - if _, ok := pureStdlib[fn.Object().(*types.Func).FullName()]; ok { + if _, ok := pureStdlib[ssafn.Object().(*types.Func).FullName()]; ok { return true } - if fn.Signature.Results().Len() == 0 { + if ssafn.Signature.Results().Len() == 0 { // A function with no return values is empty or is doing some // work we cannot see (for example because of build tags); // don't consider it pure. return false } - for _, param := range fn.Params { - // TODO(dh): this may not be strictly correct. pure code - // can, to an extent, operate on non-basic types. + for _, param := range ssafn.Params { if _, ok := param.Type().Underlying().(*types.Basic); !ok { return false } } - // Don't consider external functions pure. - if fn.Blocks == nil { + if ssafn.Blocks == nil { return false } - checkCall := func(common *ir.CallCommon) bool { + checkCall := func(common *ssa.CallCommon) bool { if common.IsInvoke() { return false } - builtin, ok := common.Value.(*ir.Builtin) + builtin, ok := common.Value.(*ssa.Builtin) if !ok { - if common.StaticCallee() != fn { + if common.StaticCallee() != ssafn { if common.StaticCallee() == nil { return false } @@ -126,47 +124,47 @@ func purity(pass *analysis.Pass) (interface{}, error) { } } else { switch builtin.Name() { - case "len", "cap": + case "len", "cap", "make", "new": default: return false } } return true } - for _, b := range fn.Blocks { + for _, b := range ssafn.Blocks { for _, ins := range b.Instrs { switch ins := ins.(type) { - case *ir.Call: + case *ssa.Call: if !checkCall(ins.Common()) { return false } - case *ir.Defer: + case *ssa.Defer: if !checkCall(&ins.Call) { return false } - case *ir.Select: + case *ssa.Select: return false - case *ir.Send: + case *ssa.Send: return false - case *ir.Go: + case *ssa.Go: return false - case *ir.Panic: + case *ssa.Panic: return false - case *ir.Store: + case *ssa.Store: return false - case *ir.FieldAddr: - return false - case *ir.Alloc: - return false - case *ir.Load: + case *ssa.FieldAddr: return false + case *ssa.UnOp: + if ins.Op == token.MUL || ins.Op == token.AND { + return false + } } } } return true } - for _, fn := range pass.ResultOf[buildir.Analyzer].(*buildir.IR).SrcFuncs { - check(fn) + for _, ssafn := range pass.ResultOf[buildssa.Analyzer].(*buildssa.SSA).SrcFuncs { + check(ssafn) } out := PurityResult{} diff --git a/vendor/honnef.co/go/tools/functions/loops.go b/vendor/honnef.co/go/tools/functions/loops.go index a8af70100..15877a2f9 100644 --- a/vendor/honnef.co/go/tools/functions/loops.go +++ b/vendor/honnef.co/go/tools/functions/loops.go @@ -1,10 +1,10 @@ package functions -import "honnef.co/go/tools/ir" +import "honnef.co/go/tools/ssa" -type Loop struct{ *ir.BlockSet } +type Loop struct{ ssa.BlockSet } -func FindLoops(fn *ir.Function) []Loop { +func FindLoops(fn *ssa.Function) []Loop { if fn.Blocks == nil { return nil } @@ -18,12 +18,12 @@ func FindLoops(fn *ir.Function) []Loop { // n is a back-edge to h // h is the loop header if n == h { - set := Loop{ir.NewBlockSet(len(fn.Blocks))} + set := Loop{} set.Add(n) sets = append(sets, set) continue } - set := Loop{ir.NewBlockSet(len(fn.Blocks))} + set := Loop{} set.Add(h) set.Add(n) for _, b := range allPredsBut(n, h, nil) { @@ -35,7 +35,7 @@ func FindLoops(fn *ir.Function) []Loop { return sets } -func allPredsBut(b, but *ir.BasicBlock, list []*ir.BasicBlock) []*ir.BasicBlock { +func allPredsBut(b, but *ssa.BasicBlock, list []*ssa.BasicBlock) []*ssa.BasicBlock { outer: for _, pred := range b.Preds { if pred == but { diff --git a/vendor/honnef.co/go/tools/functions/pure.go b/vendor/honnef.co/go/tools/functions/pure.go new file mode 100644 index 000000000..8bc558771 --- /dev/null +++ b/vendor/honnef.co/go/tools/functions/pure.go @@ -0,0 +1,46 @@ +package functions + +import ( + "honnef.co/go/tools/ssa" +) + +func filterDebug(instr []ssa.Instruction) []ssa.Instruction { + var out []ssa.Instruction + for _, ins := range instr { + if _, ok := ins.(*ssa.DebugRef); !ok { + out = append(out, ins) + } + } + return out +} + +// IsStub reports whether a function is a stub. A function is +// considered a stub if it has no instructions or exactly one +// instruction, which must be either returning only constant values or +// a panic. +func IsStub(fn *ssa.Function) bool { + if len(fn.Blocks) == 0 { + return true + } + if len(fn.Blocks) > 1 { + return false + } + instrs := filterDebug(fn.Blocks[0].Instrs) + if len(instrs) != 1 { + return false + } + + switch instrs[0].(type) { + case *ssa.Return: + // Since this is the only instruction, the return value must + // be a constant. We consider all constants as stubs, not just + // the zero value. This does not, unfortunately, cover zero + // initialised structs, as these cause additional + // instructions. + return true + case *ssa.Panic: + return true + default: + return false + } +} diff --git a/vendor/honnef.co/go/tools/functions/stub.go b/vendor/honnef.co/go/tools/functions/stub.go deleted file mode 100644 index 4d5de10b8..000000000 --- a/vendor/honnef.co/go/tools/functions/stub.go +++ /dev/null @@ -1,32 +0,0 @@ -package functions - -import ( - "honnef.co/go/tools/ir" -) - -// IsStub reports whether a function is a stub. A function is -// considered a stub if it has no instructions or if all it does is -// return a constant value. -func IsStub(fn *ir.Function) bool { - for _, b := range fn.Blocks { - for _, instr := range b.Instrs { - switch instr.(type) { - case *ir.Const: - // const naturally has no side-effects - case *ir.Panic: - // panic is a stub if it only uses constants - case *ir.Return: - // return is a stub if it only uses constants - case *ir.DebugRef: - case *ir.Jump: - // if there are no disallowed instructions, then we're - // only jumping to the exit block (or possibly - // somewhere else that's stubby?) - default: - // all other instructions are assumed to do actual work - return false - } - } - } - return true -} diff --git a/vendor/honnef.co/go/tools/functions/terminates.go b/vendor/honnef.co/go/tools/functions/terminates.go index c4984673f..3e9c3a23f 100644 --- a/vendor/honnef.co/go/tools/functions/terminates.go +++ b/vendor/honnef.co/go/tools/functions/terminates.go @@ -1,15 +1,11 @@ package functions -import ( - "go/types" - - "honnef.co/go/tools/ir" -) +import "honnef.co/go/tools/ssa" // Terminates reports whether fn is supposed to return, that is if it // has at least one theoretic path that returns from the function. // Explicit panics do not count as terminating. -func Terminates(fn *ir.Function) bool { +func Terminates(fn *ssa.Function) bool { if fn.Blocks == nil { // assuming that a function terminates is the conservative // choice @@ -17,53 +13,11 @@ func Terminates(fn *ir.Function) bool { } for _, block := range fn.Blocks { - if _, ok := block.Control().(*ir.Return); ok { - if len(block.Preds) == 0 { - return true - } - for _, pred := range block.Preds { - switch ctrl := pred.Control().(type) { - case *ir.Panic: - // explicit panics do not count as terminating - case *ir.If: - // Check if we got here by receiving from a closed - // time.Tick channel – this cannot happen at - // runtime and thus doesn't constitute termination - iff := ctrl - if !ok { - return true - } - ex, ok := iff.Cond.(*ir.Extract) - if !ok { - return true - } - if ex.Index != 1 { - return true - } - recv, ok := ex.Tuple.(*ir.Recv) - if !ok { - return true - } - call, ok := recv.Chan.(*ir.Call) - if !ok { - return true - } - fn, ok := call.Common().Value.(*ir.Function) - if !ok { - return true - } - fn2, ok := fn.Object().(*types.Func) - if !ok { - return true - } - if fn2.FullName() != "time.Tick" { - return true - } - default: - // we've reached the exit block - return true - } - } + if len(block.Instrs) == 0 { + continue + } + if _, ok := block.Instrs[len(block.Instrs)-1].(*ssa.Return); ok { + return true } } return false diff --git a/vendor/honnef.co/go/tools/internal/cache/cache.go b/vendor/honnef.co/go/tools/internal/cache/cache.go index 6b41811cf..2b33ca106 100644 --- a/vendor/honnef.co/go/tools/internal/cache/cache.go +++ b/vendor/honnef.co/go/tools/internal/cache/cache.go @@ -177,7 +177,7 @@ func (c *Cache) get(id ActionID) (Entry, error) { i++ } tm, err := strconv.ParseInt(string(etime[i:]), 10, 64) - if err != nil || tm < 0 { + if err != nil || size < 0 { return missing() } @@ -265,7 +265,7 @@ func (c *Cache) Trim() { // We maintain in dir/trim.txt the time of the last completed cache trim. // If the cache has been trimmed recently enough, do nothing. // This is the common case. - data, _ := renameio.ReadFile(filepath.Join(c.dir, "trim.txt")) + data, _ := ioutil.ReadFile(filepath.Join(c.dir, "trim.txt")) t, err := strconv.ParseInt(strings.TrimSpace(string(data)), 10, 64) if err == nil && now.Sub(time.Unix(t, 0)) < trimInterval { return @@ -282,7 +282,7 @@ func (c *Cache) Trim() { // Ignore errors from here: if we don't write the complete timestamp, the // cache will appear older than it is, and we'll trim it again next time. - renameio.WriteFile(filepath.Join(c.dir, "trim.txt"), []byte(fmt.Sprintf("%d", now.Unix())), 0666) + renameio.WriteFile(filepath.Join(c.dir, "trim.txt"), []byte(fmt.Sprintf("%d", now.Unix()))) } // trimSubdir trims a single cache subdirectory. @@ -326,8 +326,7 @@ func (c *Cache) putIndexEntry(id ActionID, out OutputID, size int64, allowVerify // in verify mode we are double-checking that the cache entries // are entirely reproducible. As just noted, this may be unrealistic // in some cases but the check is also useful for shaking out real bugs. - entry := fmt.Sprintf("v1 %x %x %20d %20d\n", id, out, size, time.Now().UnixNano()) - + entry := []byte(fmt.Sprintf("v1 %x %x %20d %20d\n", id, out, size, time.Now().UnixNano())) if verify && allowVerify { old, err := c.get(id) if err == nil && (old.OutputID != out || old.Size != size) { @@ -337,28 +336,7 @@ func (c *Cache) putIndexEntry(id ActionID, out OutputID, size int64, allowVerify } } file := c.fileName(id, "a") - - // Copy file to cache directory. - mode := os.O_WRONLY | os.O_CREATE - f, err := os.OpenFile(file, mode, 0666) - if err != nil { - return err - } - _, err = f.WriteString(entry) - if err == nil { - // Truncate the file only *after* writing it. - // (This should be a no-op, but truncate just in case of previous corruption.) - // - // This differs from ioutil.WriteFile, which truncates to 0 *before* writing - // via os.O_TRUNC. Truncating only after writing ensures that a second write - // of the same content to the same file is idempotent, and does not — even - // temporarily! — undo the effect of the first write. - err = f.Truncate(int64(len(entry))) - } - if closeErr := f.Close(); err == nil { - err = closeErr - } - if err != nil { + if err := ioutil.WriteFile(file, entry, 0666); err != nil { // TODO(bcmills): This Remove potentially races with another go command writing to file. // Can we eliminate it? os.Remove(file) diff --git a/vendor/honnef.co/go/tools/internal/passes/buildir/buildir.go b/vendor/honnef.co/go/tools/internal/passes/buildir/buildir.go deleted file mode 100644 index 394697702..000000000 --- a/vendor/honnef.co/go/tools/internal/passes/buildir/buildir.go +++ /dev/null @@ -1,113 +0,0 @@ -// Copyright 2018 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -// Package buildir defines an Analyzer that constructs the IR -// of an error-free package and returns the set of all -// functions within it. It does not report any diagnostics itself but -// may be used as an input to other analyzers. -// -// THIS INTERFACE IS EXPERIMENTAL AND MAY BE SUBJECT TO INCOMPATIBLE CHANGE. -package buildir - -import ( - "go/ast" - "go/types" - "reflect" - - "golang.org/x/tools/go/analysis" - "honnef.co/go/tools/ir" -) - -type willExit struct{} -type willUnwind struct{} - -func (*willExit) AFact() {} -func (*willUnwind) AFact() {} - -var Analyzer = &analysis.Analyzer{ - Name: "buildir", - Doc: "build IR for later passes", - Run: run, - ResultType: reflect.TypeOf(new(IR)), - FactTypes: []analysis.Fact{new(willExit), new(willUnwind)}, -} - -// IR provides intermediate representation for all the -// non-blank source functions in the current package. -type IR struct { - Pkg *ir.Package - SrcFuncs []*ir.Function -} - -func run(pass *analysis.Pass) (interface{}, error) { - // Plundered from ssautil.BuildPackage. - - // We must create a new Program for each Package because the - // analysis API provides no place to hang a Program shared by - // all Packages. Consequently, IR Packages and Functions do not - // have a canonical representation across an analysis session of - // multiple packages. This is unlikely to be a problem in - // practice because the analysis API essentially forces all - // packages to be analysed independently, so any given call to - // Analysis.Run on a package will see only IR objects belonging - // to a single Program. - - mode := ir.GlobalDebug - - prog := ir.NewProgram(pass.Fset, mode) - - // Create IR packages for all imports. - // Order is not significant. - created := make(map[*types.Package]bool) - var createAll func(pkgs []*types.Package) - createAll = func(pkgs []*types.Package) { - for _, p := range pkgs { - if !created[p] { - created[p] = true - irpkg := prog.CreatePackage(p, nil, nil, true) - for _, fn := range irpkg.Functions { - if ast.IsExported(fn.Name()) { - var exit willExit - var unwind willUnwind - if pass.ImportObjectFact(fn.Object(), &exit) { - fn.WillExit = true - } - if pass.ImportObjectFact(fn.Object(), &unwind) { - fn.WillUnwind = true - } - } - } - createAll(p.Imports()) - } - } - } - createAll(pass.Pkg.Imports()) - - // Create and build the primary package. - irpkg := prog.CreatePackage(pass.Pkg, pass.Files, pass.TypesInfo, false) - irpkg.Build() - - // Compute list of source functions, including literals, - // in source order. - var addAnons func(f *ir.Function) - funcs := make([]*ir.Function, len(irpkg.Functions)) - copy(funcs, irpkg.Functions) - addAnons = func(f *ir.Function) { - for _, anon := range f.AnonFuncs { - funcs = append(funcs, anon) - addAnons(anon) - } - } - for _, fn := range irpkg.Functions { - addAnons(fn) - if fn.WillExit { - pass.ExportObjectFact(fn.Object(), new(willExit)) - } - if fn.WillUnwind { - pass.ExportObjectFact(fn.Object(), new(willUnwind)) - } - } - - return &IR{Pkg: irpkg, SrcFuncs: funcs}, nil -} diff --git a/vendor/honnef.co/go/tools/internal/passes/buildssa/buildssa.go b/vendor/honnef.co/go/tools/internal/passes/buildssa/buildssa.go new file mode 100644 index 000000000..fde918d12 --- /dev/null +++ b/vendor/honnef.co/go/tools/internal/passes/buildssa/buildssa.go @@ -0,0 +1,116 @@ +// Copyright 2018 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// Package buildssa defines an Analyzer that constructs the SSA +// representation of an error-free package and returns the set of all +// functions within it. It does not report any diagnostics itself but +// may be used as an input to other analyzers. +// +// THIS INTERFACE IS EXPERIMENTAL AND MAY BE SUBJECT TO INCOMPATIBLE CHANGE. +package buildssa + +import ( + "go/ast" + "go/types" + "reflect" + + "golang.org/x/tools/go/analysis" + "honnef.co/go/tools/ssa" +) + +var Analyzer = &analysis.Analyzer{ + Name: "buildssa", + Doc: "build SSA-form IR for later passes", + Run: run, + ResultType: reflect.TypeOf(new(SSA)), +} + +// SSA provides SSA-form intermediate representation for all the +// non-blank source functions in the current package. +type SSA struct { + Pkg *ssa.Package + SrcFuncs []*ssa.Function +} + +func run(pass *analysis.Pass) (interface{}, error) { + // Plundered from ssautil.BuildPackage. + + // We must create a new Program for each Package because the + // analysis API provides no place to hang a Program shared by + // all Packages. Consequently, SSA Packages and Functions do not + // have a canonical representation across an analysis session of + // multiple packages. This is unlikely to be a problem in + // practice because the analysis API essentially forces all + // packages to be analysed independently, so any given call to + // Analysis.Run on a package will see only SSA objects belonging + // to a single Program. + + mode := ssa.GlobalDebug + + prog := ssa.NewProgram(pass.Fset, mode) + + // Create SSA packages for all imports. + // Order is not significant. + created := make(map[*types.Package]bool) + var createAll func(pkgs []*types.Package) + createAll = func(pkgs []*types.Package) { + for _, p := range pkgs { + if !created[p] { + created[p] = true + prog.CreatePackage(p, nil, nil, true) + createAll(p.Imports()) + } + } + } + createAll(pass.Pkg.Imports()) + + // Create and build the primary package. + ssapkg := prog.CreatePackage(pass.Pkg, pass.Files, pass.TypesInfo, false) + ssapkg.Build() + + // Compute list of source functions, including literals, + // in source order. + var funcs []*ssa.Function + var addAnons func(f *ssa.Function) + addAnons = func(f *ssa.Function) { + funcs = append(funcs, f) + for _, anon := range f.AnonFuncs { + addAnons(anon) + } + } + addAnons(ssapkg.Members["init"].(*ssa.Function)) + for _, f := range pass.Files { + for _, decl := range f.Decls { + if fdecl, ok := decl.(*ast.FuncDecl); ok { + + // SSA will not build a Function + // for a FuncDecl named blank. + // That's arguably too strict but + // relaxing it would break uniqueness of + // names of package members. + if fdecl.Name.Name == "_" { + continue + } + + // (init functions have distinct Func + // objects named "init" and distinct + // ssa.Functions named "init#1", ...) + + fn := pass.TypesInfo.Defs[fdecl.Name].(*types.Func) + if fn == nil { + panic(fn) + } + + f := ssapkg.Prog.FuncValue(fn) + if f == nil { + panic(fn) + } + + addAnons(f) + } + } + } + + return &SSA{Pkg: ssapkg, SrcFuncs: funcs}, nil +} diff --git a/vendor/honnef.co/go/tools/internal/renameio/renameio.go b/vendor/honnef.co/go/tools/internal/renameio/renameio.go index a279d1a1e..3f3f1708f 100644 --- a/vendor/honnef.co/go/tools/internal/renameio/renameio.go +++ b/vendor/honnef.co/go/tools/internal/renameio/renameio.go @@ -8,15 +8,15 @@ package renameio import ( "bytes" "io" - "math/rand" + "io/ioutil" "os" "path/filepath" - "strconv" - - "honnef.co/go/tools/internal/robustio" + "runtime" + "strings" + "time" ) -const patternSuffix = ".tmp" +const patternSuffix = "*.tmp" // Pattern returns a glob pattern that matches the unrenamed temporary files // created when writing to filename. @@ -29,14 +29,14 @@ func Pattern(filename string) string { // final name. // // That ensures that the final location, if it exists, is always a complete file. -func WriteFile(filename string, data []byte, perm os.FileMode) (err error) { - return WriteToFile(filename, bytes.NewReader(data), perm) +func WriteFile(filename string, data []byte) (err error) { + return WriteToFile(filename, bytes.NewReader(data)) } // WriteToFile is a variant of WriteFile that accepts the data as an io.Reader // instead of a slice. -func WriteToFile(filename string, data io.Reader, perm os.FileMode) (err error) { - f, err := tempFile(filepath.Dir(filename), filepath.Base(filename), perm) +func WriteToFile(filename string, data io.Reader) (err error) { + f, err := ioutil.TempFile(filepath.Dir(filename), filepath.Base(filename)+patternSuffix) if err != nil { return err } @@ -63,31 +63,21 @@ func WriteToFile(filename string, data io.Reader, perm os.FileMode) (err error) return err } - return robustio.Rename(f.Name(), filename) -} + var start time.Time + for { + err := os.Rename(f.Name(), filename) + if err == nil || runtime.GOOS != "windows" || !strings.HasSuffix(err.Error(), "Access is denied.") { + return err + } -// tempFile creates a new temporary file with given permission bits. -func tempFile(dir, prefix string, perm os.FileMode) (f *os.File, err error) { - for i := 0; i < 10000; i++ { - name := filepath.Join(dir, prefix+strconv.Itoa(rand.Intn(1000000000))+patternSuffix) - f, err = os.OpenFile(name, os.O_RDWR|os.O_CREATE|os.O_EXCL, perm) - if os.IsExist(err) { - continue + // Windows seems to occasionally trigger spurious "Access is denied" errors + // here (see golang.org/issue/31247). We're not sure why. It's probably + // worth a little extra latency to avoid propagating the spurious errors. + if start.IsZero() { + start = time.Now() + } else if time.Since(start) >= 500*time.Millisecond { + return err } - break + time.Sleep(5 * time.Millisecond) } - return -} - -// ReadFile is like ioutil.ReadFile, but on Windows retries spurious errors that -// may occur if the file is concurrently replaced. -// -// Errors are classified heuristically and retries are bounded, so even this -// function may occasionally return a spurious error on Windows. -// If so, the error will likely wrap one of: -// - syscall.ERROR_ACCESS_DENIED -// - syscall.ERROR_FILE_NOT_FOUND -// - internal/syscall/windows.ERROR_SHARING_VIOLATION -func ReadFile(filename string) ([]byte, error) { - return robustio.ReadFile(filename) } diff --git a/vendor/honnef.co/go/tools/internal/robustio/robustio.go b/vendor/honnef.co/go/tools/internal/robustio/robustio.go deleted file mode 100644 index 76e47ad1f..000000000 --- a/vendor/honnef.co/go/tools/internal/robustio/robustio.go +++ /dev/null @@ -1,53 +0,0 @@ -// Copyright 2019 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -// Package robustio wraps I/O functions that are prone to failure on Windows, -// transparently retrying errors up to an arbitrary timeout. -// -// Errors are classified heuristically and retries are bounded, so the functions -// in this package do not completely eliminate spurious errors. However, they do -// significantly reduce the rate of failure in practice. -// -// If so, the error will likely wrap one of: -// The functions in this package do not completely eliminate spurious errors, -// but substantially reduce their rate of occurrence in practice. -package robustio - -// Rename is like os.Rename, but on Windows retries errors that may occur if the -// file is concurrently read or overwritten. -// -// (See golang.org/issue/31247 and golang.org/issue/32188.) -func Rename(oldpath, newpath string) error { - return rename(oldpath, newpath) -} - -// ReadFile is like ioutil.ReadFile, but on Windows retries errors that may -// occur if the file is concurrently replaced. -// -// (See golang.org/issue/31247 and golang.org/issue/32188.) -func ReadFile(filename string) ([]byte, error) { - return readFile(filename) -} - -// RemoveAll is like os.RemoveAll, but on Windows retries errors that may occur -// if an executable file in the directory has recently been executed. -// -// (See golang.org/issue/19491.) -func RemoveAll(path string) error { - return removeAll(path) -} - -// IsEphemeralError reports whether err is one of the errors that the functions -// in this package attempt to mitigate. -// -// Errors considered ephemeral include: -// - syscall.ERROR_ACCESS_DENIED -// - syscall.ERROR_FILE_NOT_FOUND -// - internal/syscall/windows.ERROR_SHARING_VIOLATION -// -// This set may be expanded in the future; programs must not rely on the -// non-ephemerality of any given error. -func IsEphemeralError(err error) bool { - return isEphemeralError(err) -} diff --git a/vendor/honnef.co/go/tools/internal/robustio/robustio_other.go b/vendor/honnef.co/go/tools/internal/robustio/robustio_other.go deleted file mode 100644 index 91ca56cb8..000000000 --- a/vendor/honnef.co/go/tools/internal/robustio/robustio_other.go +++ /dev/null @@ -1,28 +0,0 @@ -// Copyright 2019 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -//+build !windows - -package robustio - -import ( - "io/ioutil" - "os" -) - -func rename(oldpath, newpath string) error { - return os.Rename(oldpath, newpath) -} - -func readFile(filename string) ([]byte, error) { - return ioutil.ReadFile(filename) -} - -func removeAll(path string) error { - return os.RemoveAll(path) -} - -func isEphemeralError(err error) bool { - return false -} diff --git a/vendor/honnef.co/go/tools/internal/robustio/robustio_windows.go b/vendor/honnef.co/go/tools/internal/robustio/robustio_windows.go deleted file mode 100644 index c57e09528..000000000 --- a/vendor/honnef.co/go/tools/internal/robustio/robustio_windows.go +++ /dev/null @@ -1,112 +0,0 @@ -// Copyright 2019 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package robustio - -import ( - "io/ioutil" - "math/rand" - "os" - "syscall" - "time" -) - -const arbitraryTimeout = 500 * time.Millisecond - -const ERROR_SHARING_VIOLATION = 32 - -// retry retries ephemeral errors from f up to an arbitrary timeout -// to work around spurious filesystem errors on Windows -func retry(f func() (err error, mayRetry bool)) error { - var ( - bestErr error - lowestErrno syscall.Errno - start time.Time - nextSleep time.Duration = 1 * time.Millisecond - ) - for { - err, mayRetry := f() - if err == nil || !mayRetry { - return err - } - - if errno, ok := err.(syscall.Errno); ok && (lowestErrno == 0 || errno < lowestErrno) { - bestErr = err - lowestErrno = errno - } else if bestErr == nil { - bestErr = err - } - - if start.IsZero() { - start = time.Now() - } else if d := time.Since(start) + nextSleep; d >= arbitraryTimeout { - break - } - time.Sleep(nextSleep) - nextSleep += time.Duration(rand.Int63n(int64(nextSleep))) - } - - return bestErr -} - -// rename is like os.Rename, but retries ephemeral errors. -// -// It wraps os.Rename, which (as of 2019-06-04) uses MoveFileEx with -// MOVEFILE_REPLACE_EXISTING. -// -// Windows also provides a different system call, ReplaceFile, -// that provides similar semantics, but perhaps preserves more metadata. (The -// documentation on the differences between the two is very sparse.) -// -// Empirical error rates with MoveFileEx are lower under modest concurrency, so -// for now we're sticking with what the os package already provides. -func rename(oldpath, newpath string) (err error) { - return retry(func() (err error, mayRetry bool) { - err = os.Rename(oldpath, newpath) - return err, isEphemeralError(err) - }) -} - -// readFile is like ioutil.ReadFile, but retries ephemeral errors. -func readFile(filename string) ([]byte, error) { - var b []byte - err := retry(func() (err error, mayRetry bool) { - b, err = ioutil.ReadFile(filename) - - // Unlike in rename, we do not retry ERROR_FILE_NOT_FOUND here: it can occur - // as a spurious error, but the file may also genuinely not exist, so the - // increase in robustness is probably not worth the extra latency. - - return err, isEphemeralError(err) && err != syscall.ERROR_FILE_NOT_FOUND - }) - return b, err -} - -func removeAll(path string) error { - return retry(func() (err error, mayRetry bool) { - err = os.RemoveAll(path) - return err, isEphemeralError(err) - }) -} - -// isEphemeralError returns true if err may be resolved by waiting. -func isEphemeralError(err error) bool { - switch werr := err.(type) { - case *os.PathError: - err = werr.Err - case *os.LinkError: - err = werr.Err - case *os.SyscallError: - err = werr.Err - } - if errno, ok := err.(syscall.Errno); ok { - switch errno { - case syscall.ERROR_ACCESS_DENIED, - syscall.ERROR_FILE_NOT_FOUND, - ERROR_SHARING_VIOLATION: - return true - } - } - return false -} diff --git a/vendor/honnef.co/go/tools/internal/sharedcheck/lint.go b/vendor/honnef.co/go/tools/internal/sharedcheck/lint.go index e9abf0d89..affee6607 100644 --- a/vendor/honnef.co/go/tools/internal/sharedcheck/lint.go +++ b/vendor/honnef.co/go/tools/internal/sharedcheck/lint.go @@ -5,24 +5,23 @@ import ( "go/types" "golang.org/x/tools/go/analysis" - "honnef.co/go/tools/code" - "honnef.co/go/tools/internal/passes/buildir" - "honnef.co/go/tools/ir" + "honnef.co/go/tools/internal/passes/buildssa" . "honnef.co/go/tools/lint/lintdsl" + "honnef.co/go/tools/ssa" ) func CheckRangeStringRunes(pass *analysis.Pass) (interface{}, error) { - for _, fn := range pass.ResultOf[buildir.Analyzer].(*buildir.IR).SrcFuncs { - cb := func(node ast.Node) bool { + for _, ssafn := range pass.ResultOf[buildssa.Analyzer].(*buildssa.SSA).SrcFuncs { + fn := func(node ast.Node) bool { rng, ok := node.(*ast.RangeStmt) - if !ok || !code.IsBlank(rng.Key) { + if !ok || !IsBlank(rng.Key) { return true } - v, _ := fn.ValueForExpr(rng.X) + v, _ := ssafn.ValueForExpr(rng.X) // Check that we're converting from string to []rune - val, _ := v.(*ir.Convert) + val, _ := v.(*ssa.Convert) if val == nil { return true } @@ -48,13 +47,13 @@ func CheckRangeStringRunes(pass *analysis.Pass) (interface{}, error) { // Expect two refs: one for obtaining the length of the slice, // one for accessing the elements - if len(code.FilterDebug(*refs)) != 2 { + if len(FilterDebug(*refs)) != 2 { // TODO(dh): right now, we check that only one place // refers to our slice. This will miss cases such as // ranging over the slice twice. Ideally, we'd ensure that // the slice is only used for ranging over (without // accessing the key), but that is harder to do because in - // IR form, ranging over a slice looks like an ordinary + // SSA form, ranging over a slice looks like an ordinary // loop with index increments and slice accesses. We'd // have to look at the associated AST node to check that // it's a range statement. @@ -65,7 +64,7 @@ func CheckRangeStringRunes(pass *analysis.Pass) (interface{}, error) { return true } - Inspect(fn.Source(), cb) + Inspect(ssafn.Syntax(), fn) } return nil, nil } diff --git a/vendor/honnef.co/go/tools/ir/LICENSE b/vendor/honnef.co/go/tools/ir/LICENSE deleted file mode 100644 index aee48041e..000000000 --- a/vendor/honnef.co/go/tools/ir/LICENSE +++ /dev/null @@ -1,28 +0,0 @@ -Copyright (c) 2009 The Go Authors. All rights reserved. -Copyright (c) 2016 Dominik Honnef. All rights reserved. - -Redistribution and use in source and binary forms, with or without -modification, are permitted provided that the following conditions are -met: - - * Redistributions of source code must retain the above copyright -notice, this list of conditions and the following disclaimer. - * Redistributions in binary form must reproduce the above -copyright notice, this list of conditions and the following disclaimer -in the documentation and/or other materials provided with the -distribution. - * Neither the name of Google Inc. nor the names of its -contributors may be used to endorse or promote products derived from -this software without specific prior written permission. - -THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. diff --git a/vendor/honnef.co/go/tools/ir/blockopt.go b/vendor/honnef.co/go/tools/ir/blockopt.go deleted file mode 100644 index d7a0e3567..000000000 --- a/vendor/honnef.co/go/tools/ir/blockopt.go +++ /dev/null @@ -1,209 +0,0 @@ -// Copyright 2013 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package ir - -// Simple block optimizations to simplify the control flow graph. - -// TODO(adonovan): opt: instead of creating several "unreachable" blocks -// per function in the Builder, reuse a single one (e.g. at Blocks[1]) -// to reduce garbage. - -import ( - "fmt" - "os" -) - -// If true, perform sanity checking and show progress at each -// successive iteration of optimizeBlocks. Very verbose. -const debugBlockOpt = false - -// markReachable sets Index=-1 for all blocks reachable from b. -func markReachable(b *BasicBlock) { - b.gaps = -1 - for _, succ := range b.Succs { - if succ.gaps == 0 { - markReachable(succ) - } - } -} - -// deleteUnreachableBlocks marks all reachable blocks of f and -// eliminates (nils) all others, including possibly cyclic subgraphs. -// -func deleteUnreachableBlocks(f *Function) { - const white, black = 0, -1 - // We borrow b.gaps temporarily as the mark bit. - for _, b := range f.Blocks { - b.gaps = white - } - markReachable(f.Blocks[0]) - // In SSI form, we need the exit to be reachable for correct - // post-dominance information. In original form, however, we - // cannot unconditionally mark it reachable because we won't - // be adding fake edges, and this breaks the calculation of - // dominance information. - markReachable(f.Exit) - for i, b := range f.Blocks { - if b.gaps == white { - for _, c := range b.Succs { - if c.gaps == black { - c.removePred(b) // delete white->black edge - } - } - if debugBlockOpt { - fmt.Fprintln(os.Stderr, "unreachable", b) - } - f.Blocks[i] = nil // delete b - } - } - f.removeNilBlocks() -} - -// jumpThreading attempts to apply simple jump-threading to block b, -// in which a->b->c become a->c if b is just a Jump. -// The result is true if the optimization was applied. -// -func jumpThreading(f *Function, b *BasicBlock) bool { - if b.Index == 0 { - return false // don't apply to entry block - } - if b.Instrs == nil { - return false - } - for _, pred := range b.Preds { - switch pred.Control().(type) { - case *ConstantSwitch: - // don't optimize away the head blocks of switch statements - return false - } - } - if _, ok := b.Instrs[0].(*Jump); !ok { - return false // not just a jump - } - c := b.Succs[0] - if c == b { - return false // don't apply to degenerate jump-to-self. - } - if c.hasPhi() { - return false // not sound without more effort - } - for j, a := range b.Preds { - a.replaceSucc(b, c) - - // If a now has two edges to c, replace its degenerate If by Jump. - if len(a.Succs) == 2 && a.Succs[0] == c && a.Succs[1] == c { - jump := new(Jump) - jump.setBlock(a) - a.Instrs[len(a.Instrs)-1] = jump - a.Succs = a.Succs[:1] - c.removePred(b) - } else { - if j == 0 { - c.replacePred(b, a) - } else { - c.Preds = append(c.Preds, a) - } - } - - if debugBlockOpt { - fmt.Fprintln(os.Stderr, "jumpThreading", a, b, c) - } - } - f.Blocks[b.Index] = nil // delete b - return true -} - -// fuseBlocks attempts to apply the block fusion optimization to block -// a, in which a->b becomes ab if len(a.Succs)==len(b.Preds)==1. -// The result is true if the optimization was applied. -// -func fuseBlocks(f *Function, a *BasicBlock) bool { - if len(a.Succs) != 1 { - return false - } - if a.Succs[0] == f.Exit { - return false - } - b := a.Succs[0] - if len(b.Preds) != 1 { - return false - } - if _, ok := a.Instrs[len(a.Instrs)-1].(*Panic); ok { - // panics aren't simple jumps, they have side effects. - return false - } - - // Degenerate &&/|| ops may result in a straight-line CFG - // containing φ-nodes. (Ideally we'd replace such them with - // their sole operand but that requires Referrers, built later.) - if b.hasPhi() { - return false // not sound without further effort - } - - // Eliminate jump at end of A, then copy all of B across. - a.Instrs = append(a.Instrs[:len(a.Instrs)-1], b.Instrs...) - for _, instr := range b.Instrs { - instr.setBlock(a) - } - - // A inherits B's successors - a.Succs = append(a.succs2[:0], b.Succs...) - - // Fix up Preds links of all successors of B. - for _, c := range b.Succs { - c.replacePred(b, a) - } - - if debugBlockOpt { - fmt.Fprintln(os.Stderr, "fuseBlocks", a, b) - } - - f.Blocks[b.Index] = nil // delete b - return true -} - -// optimizeBlocks() performs some simple block optimizations on a -// completed function: dead block elimination, block fusion, jump -// threading. -// -func optimizeBlocks(f *Function) { - if debugBlockOpt { - f.WriteTo(os.Stderr) - mustSanityCheck(f, nil) - } - - deleteUnreachableBlocks(f) - - // Loop until no further progress. - changed := true - for changed { - changed = false - - if debugBlockOpt { - f.WriteTo(os.Stderr) - mustSanityCheck(f, nil) - } - - for _, b := range f.Blocks { - // f.Blocks will temporarily contain nils to indicate - // deleted blocks; we remove them at the end. - if b == nil { - continue - } - - // Fuse blocks. b->c becomes bc. - if fuseBlocks(f, b) { - changed = true - } - - // a->b->c becomes a->c if b contains only a Jump. - if jumpThreading(f, b) { - changed = true - continue // (b was disconnected) - } - } - } - f.removeNilBlocks() -} diff --git a/vendor/honnef.co/go/tools/ir/builder.go b/vendor/honnef.co/go/tools/ir/builder.go deleted file mode 100644 index 5b740247e..000000000 --- a/vendor/honnef.co/go/tools/ir/builder.go +++ /dev/null @@ -1,2478 +0,0 @@ -// Copyright 2013 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package ir - -// This file implements the BUILD phase of IR construction. -// -// IR construction has two phases, CREATE and BUILD. In the CREATE phase -// (create.go), all packages are constructed and type-checked and -// definitions of all package members are created, method-sets are -// computed, and wrapper methods are synthesized. -// ir.Packages are created in arbitrary order. -// -// In the BUILD phase (builder.go), the builder traverses the AST of -// each Go source function and generates IR instructions for the -// function body. Initializer expressions for package-level variables -// are emitted to the package's init() function in the order specified -// by go/types.Info.InitOrder, then code for each function in the -// package is generated in lexical order. -// -// The builder's and Program's indices (maps) are populated and -// mutated during the CREATE phase, but during the BUILD phase they -// remain constant. The sole exception is Prog.methodSets and its -// related maps, which are protected by a dedicated mutex. - -import ( - "fmt" - "go/ast" - "go/constant" - "go/token" - "go/types" - "os" -) - -type opaqueType struct { - types.Type - name string -} - -func (t *opaqueType) String() string { return t.name } - -var ( - varOk = newVar("ok", tBool) - varIndex = newVar("index", tInt) - - // Type constants. - tBool = types.Typ[types.Bool] - tByte = types.Typ[types.Byte] - tInt = types.Typ[types.Int] - tInvalid = types.Typ[types.Invalid] - tString = types.Typ[types.String] - tUntypedNil = types.Typ[types.UntypedNil] - tRangeIter = &opaqueType{nil, "iter"} // the type of all "range" iterators - tEface = types.NewInterfaceType(nil, nil).Complete() -) - -// builder holds state associated with the package currently being built. -// Its methods contain all the logic for AST-to-IR conversion. -type builder struct { - printFunc string - - blocksets [5]BlockSet -} - -// cond emits to fn code to evaluate boolean condition e and jump -// to t or f depending on its value, performing various simplifications. -// -// Postcondition: fn.currentBlock is nil. -// -func (b *builder) cond(fn *Function, e ast.Expr, t, f *BasicBlock) *If { - switch e := e.(type) { - case *ast.ParenExpr: - return b.cond(fn, e.X, t, f) - - case *ast.BinaryExpr: - switch e.Op { - case token.LAND: - ltrue := fn.newBasicBlock("cond.true") - b.cond(fn, e.X, ltrue, f) - fn.currentBlock = ltrue - return b.cond(fn, e.Y, t, f) - - case token.LOR: - lfalse := fn.newBasicBlock("cond.false") - b.cond(fn, e.X, t, lfalse) - fn.currentBlock = lfalse - return b.cond(fn, e.Y, t, f) - } - - case *ast.UnaryExpr: - if e.Op == token.NOT { - return b.cond(fn, e.X, f, t) - } - } - - // A traditional compiler would simplify "if false" (etc) here - // but we do not, for better fidelity to the source code. - // - // The value of a constant condition may be platform-specific, - // and may cause blocks that are reachable in some configuration - // to be hidden from subsequent analyses such as bug-finding tools. - return emitIf(fn, b.expr(fn, e), t, f, e) -} - -// logicalBinop emits code to fn to evaluate e, a &&- or -// ||-expression whose reified boolean value is wanted. -// The value is returned. -// -func (b *builder) logicalBinop(fn *Function, e *ast.BinaryExpr) Value { - rhs := fn.newBasicBlock("binop.rhs") - done := fn.newBasicBlock("binop.done") - - // T(e) = T(e.X) = T(e.Y) after untyped constants have been - // eliminated. - // TODO(adonovan): not true; MyBool==MyBool yields UntypedBool. - t := fn.Pkg.typeOf(e) - - var short Value // value of the short-circuit path - switch e.Op { - case token.LAND: - b.cond(fn, e.X, rhs, done) - short = emitConst(fn, NewConst(constant.MakeBool(false), t)) - - case token.LOR: - b.cond(fn, e.X, done, rhs) - short = emitConst(fn, NewConst(constant.MakeBool(true), t)) - } - - // Is rhs unreachable? - if rhs.Preds == nil { - // Simplify false&&y to false, true||y to true. - fn.currentBlock = done - return short - } - - // Is done unreachable? - if done.Preds == nil { - // Simplify true&&y (or false||y) to y. - fn.currentBlock = rhs - return b.expr(fn, e.Y) - } - - // All edges from e.X to done carry the short-circuit value. - var edges []Value - for range done.Preds { - edges = append(edges, short) - } - - // The edge from e.Y to done carries the value of e.Y. - fn.currentBlock = rhs - edges = append(edges, b.expr(fn, e.Y)) - emitJump(fn, done, e) - fn.currentBlock = done - - phi := &Phi{Edges: edges, Comment: e.Op.String()} - phi.typ = t - return done.emit(phi, e) -} - -// exprN lowers a multi-result expression e to IR form, emitting code -// to fn and returning a single Value whose type is a *types.Tuple. -// The caller must access the components via Extract. -// -// Multi-result expressions include CallExprs in a multi-value -// assignment or return statement, and "value,ok" uses of -// TypeAssertExpr, IndexExpr (when X is a map), and Recv. -// -func (b *builder) exprN(fn *Function, e ast.Expr) Value { - typ := fn.Pkg.typeOf(e).(*types.Tuple) - switch e := e.(type) { - case *ast.ParenExpr: - return b.exprN(fn, e.X) - - case *ast.CallExpr: - // Currently, no built-in function nor type conversion - // has multiple results, so we can avoid some of the - // cases for single-valued CallExpr. - var c Call - b.setCall(fn, e, &c.Call) - c.typ = typ - return fn.emit(&c, e) - - case *ast.IndexExpr: - mapt := fn.Pkg.typeOf(e.X).Underlying().(*types.Map) - lookup := &MapLookup{ - X: b.expr(fn, e.X), - Index: emitConv(fn, b.expr(fn, e.Index), mapt.Key(), e), - CommaOk: true, - } - lookup.setType(typ) - return fn.emit(lookup, e) - - case *ast.TypeAssertExpr: - return emitTypeTest(fn, b.expr(fn, e.X), typ.At(0).Type(), e) - - case *ast.UnaryExpr: // must be receive <- - return emitRecv(fn, b.expr(fn, e.X), true, typ, e) - } - panic(fmt.Sprintf("exprN(%T) in %s", e, fn)) -} - -// builtin emits to fn IR instructions to implement a call to the -// built-in function obj with the specified arguments -// and return type. It returns the value defined by the result. -// -// The result is nil if no special handling was required; in this case -// the caller should treat this like an ordinary library function -// call. -// -func (b *builder) builtin(fn *Function, obj *types.Builtin, args []ast.Expr, typ types.Type, source ast.Node) Value { - switch obj.Name() { - case "make": - switch typ.Underlying().(type) { - case *types.Slice: - n := b.expr(fn, args[1]) - m := n - if len(args) == 3 { - m = b.expr(fn, args[2]) - } - if m, ok := m.(*Const); ok { - // treat make([]T, n, m) as new([m]T)[:n] - cap := m.Int64() - at := types.NewArray(typ.Underlying().(*types.Slice).Elem(), cap) - alloc := emitNew(fn, at, source) - alloc.Comment = "makeslice" - v := &Slice{ - X: alloc, - High: n, - } - v.setType(typ) - return fn.emit(v, source) - } - v := &MakeSlice{ - Len: n, - Cap: m, - } - v.setType(typ) - return fn.emit(v, source) - - case *types.Map: - var res Value - if len(args) == 2 { - res = b.expr(fn, args[1]) - } - v := &MakeMap{Reserve: res} - v.setType(typ) - return fn.emit(v, source) - - case *types.Chan: - var sz Value = emitConst(fn, intConst(0)) - if len(args) == 2 { - sz = b.expr(fn, args[1]) - } - v := &MakeChan{Size: sz} - v.setType(typ) - return fn.emit(v, source) - } - - case "new": - alloc := emitNew(fn, deref(typ), source) - alloc.Comment = "new" - return alloc - - case "len", "cap": - // Special case: len or cap of an array or *array is - // based on the type, not the value which may be nil. - // We must still evaluate the value, though. (If it - // was side-effect free, the whole call would have - // been constant-folded.) - t := deref(fn.Pkg.typeOf(args[0])).Underlying() - if at, ok := t.(*types.Array); ok { - b.expr(fn, args[0]) // for effects only - return emitConst(fn, intConst(at.Len())) - } - // Otherwise treat as normal. - - case "panic": - fn.emit(&Panic{ - X: emitConv(fn, b.expr(fn, args[0]), tEface, source), - }, source) - addEdge(fn.currentBlock, fn.Exit) - fn.currentBlock = fn.newBasicBlock("unreachable") - return emitConst(fn, NewConst(constant.MakeBool(true), tBool)) // any non-nil Value will do - } - return nil // treat all others as a regular function call -} - -// addr lowers a single-result addressable expression e to IR form, -// emitting code to fn and returning the location (an lvalue) defined -// by the expression. -// -// If escaping is true, addr marks the base variable of the -// addressable expression e as being a potentially escaping pointer -// value. For example, in this code: -// -// a := A{ -// b: [1]B{B{c: 1}} -// } -// return &a.b[0].c -// -// the application of & causes a.b[0].c to have its address taken, -// which means that ultimately the local variable a must be -// heap-allocated. This is a simple but very conservative escape -// analysis. -// -// Operations forming potentially escaping pointers include: -// - &x, including when implicit in method call or composite literals. -// - a[:] iff a is an array (not *array) -// - references to variables in lexically enclosing functions. -// -func (b *builder) addr(fn *Function, e ast.Expr, escaping bool) lvalue { - switch e := e.(type) { - case *ast.Ident: - if isBlankIdent(e) { - return blank{} - } - obj := fn.Pkg.objectOf(e) - v := fn.Prog.packageLevelValue(obj) // var (address) - if v == nil { - v = fn.lookup(obj, escaping) - } - return &address{addr: v, expr: e} - - case *ast.CompositeLit: - t := deref(fn.Pkg.typeOf(e)) - var v *Alloc - if escaping { - v = emitNew(fn, t, e) - } else { - v = fn.addLocal(t, e) - } - v.Comment = "complit" - var sb storebuf - b.compLit(fn, v, e, true, &sb) - sb.emit(fn) - return &address{addr: v, expr: e} - - case *ast.ParenExpr: - return b.addr(fn, e.X, escaping) - - case *ast.SelectorExpr: - sel, ok := fn.Pkg.info.Selections[e] - if !ok { - // qualified identifier - return b.addr(fn, e.Sel, escaping) - } - if sel.Kind() != types.FieldVal { - panic(sel) - } - wantAddr := true - v := b.receiver(fn, e.X, wantAddr, escaping, sel, e) - last := len(sel.Index()) - 1 - return &address{ - addr: emitFieldSelection(fn, v, sel.Index()[last], true, e.Sel), - expr: e.Sel, - } - - case *ast.IndexExpr: - var x Value - var et types.Type - switch t := fn.Pkg.typeOf(e.X).Underlying().(type) { - case *types.Array: - x = b.addr(fn, e.X, escaping).address(fn) - et = types.NewPointer(t.Elem()) - case *types.Pointer: // *array - x = b.expr(fn, e.X) - et = types.NewPointer(t.Elem().Underlying().(*types.Array).Elem()) - case *types.Slice: - x = b.expr(fn, e.X) - et = types.NewPointer(t.Elem()) - case *types.Map: - return &element{ - m: b.expr(fn, e.X), - k: emitConv(fn, b.expr(fn, e.Index), t.Key(), e.Index), - t: t.Elem(), - } - default: - panic("unexpected container type in IndexExpr: " + t.String()) - } - v := &IndexAddr{ - X: x, - Index: emitConv(fn, b.expr(fn, e.Index), tInt, e.Index), - } - v.setType(et) - return &address{addr: fn.emit(v, e), expr: e} - - case *ast.StarExpr: - return &address{addr: b.expr(fn, e.X), expr: e} - } - - panic(fmt.Sprintf("unexpected address expression: %T", e)) -} - -type store struct { - lhs lvalue - rhs Value - source ast.Node -} - -type storebuf struct{ stores []store } - -func (sb *storebuf) store(lhs lvalue, rhs Value, source ast.Node) { - sb.stores = append(sb.stores, store{lhs, rhs, source}) -} - -func (sb *storebuf) emit(fn *Function) { - for _, s := range sb.stores { - s.lhs.store(fn, s.rhs, s.source) - } -} - -// assign emits to fn code to initialize the lvalue loc with the value -// of expression e. If isZero is true, assign assumes that loc holds -// the zero value for its type. -// -// This is equivalent to loc.store(fn, b.expr(fn, e)), but may generate -// better code in some cases, e.g., for composite literals in an -// addressable location. -// -// If sb is not nil, assign generates code to evaluate expression e, but -// not to update loc. Instead, the necessary stores are appended to the -// storebuf sb so that they can be executed later. This allows correct -// in-place update of existing variables when the RHS is a composite -// literal that may reference parts of the LHS. -// -func (b *builder) assign(fn *Function, loc lvalue, e ast.Expr, isZero bool, sb *storebuf, source ast.Node) { - // Can we initialize it in place? - if e, ok := unparen(e).(*ast.CompositeLit); ok { - // A CompositeLit never evaluates to a pointer, - // so if the type of the location is a pointer, - // an &-operation is implied. - if _, ok := loc.(blank); !ok { // avoid calling blank.typ() - if isPointer(loc.typ()) { - ptr := b.addr(fn, e, true).address(fn) - // copy address - if sb != nil { - sb.store(loc, ptr, source) - } else { - loc.store(fn, ptr, source) - } - return - } - } - - if _, ok := loc.(*address); ok { - if isInterface(loc.typ()) { - // e.g. var x interface{} = T{...} - // Can't in-place initialize an interface value. - // Fall back to copying. - } else { - // x = T{...} or x := T{...} - addr := loc.address(fn) - if sb != nil { - b.compLit(fn, addr, e, isZero, sb) - } else { - var sb storebuf - b.compLit(fn, addr, e, isZero, &sb) - sb.emit(fn) - } - - // Subtle: emit debug ref for aggregate types only; - // slice and map are handled by store ops in compLit. - switch loc.typ().Underlying().(type) { - case *types.Struct, *types.Array: - emitDebugRef(fn, e, addr, true) - } - - return - } - } - } - - // simple case: just copy - rhs := b.expr(fn, e) - if sb != nil { - sb.store(loc, rhs, source) - } else { - loc.store(fn, rhs, source) - } -} - -// expr lowers a single-result expression e to IR form, emitting code -// to fn and returning the Value defined by the expression. -// -func (b *builder) expr(fn *Function, e ast.Expr) Value { - e = unparen(e) - - tv := fn.Pkg.info.Types[e] - - // Is expression a constant? - if tv.Value != nil { - return emitConst(fn, NewConst(tv.Value, tv.Type)) - } - - var v Value - if tv.Addressable() { - // Prefer pointer arithmetic ({Index,Field}Addr) followed - // by Load over subelement extraction (e.g. Index, Field), - // to avoid large copies. - v = b.addr(fn, e, false).load(fn, e) - } else { - v = b.expr0(fn, e, tv) - } - if fn.debugInfo() { - emitDebugRef(fn, e, v, false) - } - return v -} - -func (b *builder) expr0(fn *Function, e ast.Expr, tv types.TypeAndValue) Value { - switch e := e.(type) { - case *ast.BasicLit: - panic("non-constant BasicLit") // unreachable - - case *ast.FuncLit: - fn2 := &Function{ - name: fmt.Sprintf("%s$%d", fn.Name(), 1+len(fn.AnonFuncs)), - Signature: fn.Pkg.typeOf(e.Type).Underlying().(*types.Signature), - parent: fn, - Pkg: fn.Pkg, - Prog: fn.Prog, - } - fn2.source = e - fn.AnonFuncs = append(fn.AnonFuncs, fn2) - fn2.initHTML(b.printFunc) - b.buildFunction(fn2) - if fn2.FreeVars == nil { - return fn2 - } - v := &MakeClosure{Fn: fn2} - v.setType(tv.Type) - for _, fv := range fn2.FreeVars { - v.Bindings = append(v.Bindings, fv.outer) - fv.outer = nil - } - return fn.emit(v, e) - - case *ast.TypeAssertExpr: // single-result form only - return emitTypeAssert(fn, b.expr(fn, e.X), tv.Type, e) - - case *ast.CallExpr: - if fn.Pkg.info.Types[e.Fun].IsType() { - // Explicit type conversion, e.g. string(x) or big.Int(x) - x := b.expr(fn, e.Args[0]) - y := emitConv(fn, x, tv.Type, e) - return y - } - // Call to "intrinsic" built-ins, e.g. new, make, panic. - if id, ok := unparen(e.Fun).(*ast.Ident); ok { - if obj, ok := fn.Pkg.info.Uses[id].(*types.Builtin); ok { - if v := b.builtin(fn, obj, e.Args, tv.Type, e); v != nil { - return v - } - } - } - // Regular function call. - var v Call - b.setCall(fn, e, &v.Call) - v.setType(tv.Type) - return fn.emit(&v, e) - - case *ast.UnaryExpr: - switch e.Op { - case token.AND: // &X --- potentially escaping. - addr := b.addr(fn, e.X, true) - if _, ok := unparen(e.X).(*ast.StarExpr); ok { - // &*p must panic if p is nil (http://golang.org/s/go12nil). - // For simplicity, we'll just (suboptimally) rely - // on the side effects of a load. - // TODO(adonovan): emit dedicated nilcheck. - addr.load(fn, e) - } - return addr.address(fn) - case token.ADD: - return b.expr(fn, e.X) - case token.NOT, token.SUB, token.XOR: // ! <- - ^ - v := &UnOp{ - Op: e.Op, - X: b.expr(fn, e.X), - } - v.setType(tv.Type) - return fn.emit(v, e) - case token.ARROW: - return emitRecv(fn, b.expr(fn, e.X), false, tv.Type, e) - default: - panic(e.Op) - } - - case *ast.BinaryExpr: - switch e.Op { - case token.LAND, token.LOR: - return b.logicalBinop(fn, e) - case token.SHL, token.SHR: - fallthrough - case token.ADD, token.SUB, token.MUL, token.QUO, token.REM, token.AND, token.OR, token.XOR, token.AND_NOT: - return emitArith(fn, e.Op, b.expr(fn, e.X), b.expr(fn, e.Y), tv.Type, e) - - case token.EQL, token.NEQ, token.GTR, token.LSS, token.LEQ, token.GEQ: - cmp := emitCompare(fn, e.Op, b.expr(fn, e.X), b.expr(fn, e.Y), e) - // The type of x==y may be UntypedBool. - return emitConv(fn, cmp, types.Default(tv.Type), e) - default: - panic("illegal op in BinaryExpr: " + e.Op.String()) - } - - case *ast.SliceExpr: - var low, high, max Value - var x Value - switch fn.Pkg.typeOf(e.X).Underlying().(type) { - case *types.Array: - // Potentially escaping. - x = b.addr(fn, e.X, true).address(fn) - case *types.Basic, *types.Slice, *types.Pointer: // *array - x = b.expr(fn, e.X) - default: - panic("unreachable") - } - if e.High != nil { - high = b.expr(fn, e.High) - } - if e.Low != nil { - low = b.expr(fn, e.Low) - } - if e.Slice3 { - max = b.expr(fn, e.Max) - } - v := &Slice{ - X: x, - Low: low, - High: high, - Max: max, - } - v.setType(tv.Type) - return fn.emit(v, e) - - case *ast.Ident: - obj := fn.Pkg.info.Uses[e] - // Universal built-in or nil? - switch obj := obj.(type) { - case *types.Builtin: - return &Builtin{name: obj.Name(), sig: tv.Type.(*types.Signature)} - case *types.Nil: - return emitConst(fn, nilConst(tv.Type)) - } - // Package-level func or var? - if v := fn.Prog.packageLevelValue(obj); v != nil { - if _, ok := obj.(*types.Var); ok { - return emitLoad(fn, v, e) // var (address) - } - return v // (func) - } - // Local var. - return emitLoad(fn, fn.lookup(obj, false), e) // var (address) - - case *ast.SelectorExpr: - sel, ok := fn.Pkg.info.Selections[e] - if !ok { - // qualified identifier - return b.expr(fn, e.Sel) - } - switch sel.Kind() { - case types.MethodExpr: - // (*T).f or T.f, the method f from the method-set of type T. - // The result is a "thunk". - return emitConv(fn, makeThunk(fn.Prog, sel), tv.Type, e) - - case types.MethodVal: - // e.f where e is an expression and f is a method. - // The result is a "bound". - obj := sel.Obj().(*types.Func) - rt := recvType(obj) - wantAddr := isPointer(rt) - escaping := true - v := b.receiver(fn, e.X, wantAddr, escaping, sel, e) - if isInterface(rt) { - // If v has interface type I, - // we must emit a check that v is non-nil. - // We use: typeassert v.(I). - emitTypeAssert(fn, v, rt, e) - } - c := &MakeClosure{ - Fn: makeBound(fn.Prog, obj), - Bindings: []Value{v}, - } - c.source = e.Sel - c.setType(tv.Type) - return fn.emit(c, e) - - case types.FieldVal: - indices := sel.Index() - last := len(indices) - 1 - v := b.expr(fn, e.X) - v = emitImplicitSelections(fn, v, indices[:last], e) - v = emitFieldSelection(fn, v, indices[last], false, e.Sel) - return v - } - - panic("unexpected expression-relative selector") - - case *ast.IndexExpr: - switch t := fn.Pkg.typeOf(e.X).Underlying().(type) { - case *types.Array: - // Non-addressable array (in a register). - v := &Index{ - X: b.expr(fn, e.X), - Index: emitConv(fn, b.expr(fn, e.Index), tInt, e.Index), - } - v.setType(t.Elem()) - return fn.emit(v, e) - - case *types.Map: - // Maps are not addressable. - mapt := fn.Pkg.typeOf(e.X).Underlying().(*types.Map) - v := &MapLookup{ - X: b.expr(fn, e.X), - Index: emitConv(fn, b.expr(fn, e.Index), mapt.Key(), e.Index), - } - v.setType(mapt.Elem()) - return fn.emit(v, e) - - case *types.Basic: // => string - // Strings are not addressable. - v := &StringLookup{ - X: b.expr(fn, e.X), - Index: b.expr(fn, e.Index), - } - v.setType(tByte) - return fn.emit(v, e) - - case *types.Slice, *types.Pointer: // *array - // Addressable slice/array; use IndexAddr and Load. - return b.addr(fn, e, false).load(fn, e) - - default: - panic("unexpected container type in IndexExpr: " + t.String()) - } - - case *ast.CompositeLit, *ast.StarExpr: - // Addressable types (lvalues) - return b.addr(fn, e, false).load(fn, e) - } - - panic(fmt.Sprintf("unexpected expr: %T", e)) -} - -// stmtList emits to fn code for all statements in list. -func (b *builder) stmtList(fn *Function, list []ast.Stmt) { - for _, s := range list { - b.stmt(fn, s) - } -} - -// receiver emits to fn code for expression e in the "receiver" -// position of selection e.f (where f may be a field or a method) and -// returns the effective receiver after applying the implicit field -// selections of sel. -// -// wantAddr requests that the result is an an address. If -// !sel.Indirect(), this may require that e be built in addr() mode; it -// must thus be addressable. -// -// escaping is defined as per builder.addr(). -// -func (b *builder) receiver(fn *Function, e ast.Expr, wantAddr, escaping bool, sel *types.Selection, source ast.Node) Value { - var v Value - if wantAddr && !sel.Indirect() && !isPointer(fn.Pkg.typeOf(e)) { - v = b.addr(fn, e, escaping).address(fn) - } else { - v = b.expr(fn, e) - } - - last := len(sel.Index()) - 1 - v = emitImplicitSelections(fn, v, sel.Index()[:last], source) - if !wantAddr && isPointer(v.Type()) { - v = emitLoad(fn, v, e) - } - return v -} - -// setCallFunc populates the function parts of a CallCommon structure -// (Func, Method, Recv, Args[0]) based on the kind of invocation -// occurring in e. -// -func (b *builder) setCallFunc(fn *Function, e *ast.CallExpr, c *CallCommon) { - // Is this a method call? - if selector, ok := unparen(e.Fun).(*ast.SelectorExpr); ok { - sel, ok := fn.Pkg.info.Selections[selector] - if ok && sel.Kind() == types.MethodVal { - obj := sel.Obj().(*types.Func) - recv := recvType(obj) - wantAddr := isPointer(recv) - escaping := true - v := b.receiver(fn, selector.X, wantAddr, escaping, sel, selector) - if isInterface(recv) { - // Invoke-mode call. - c.Value = v - c.Method = obj - } else { - // "Call"-mode call. - c.Value = fn.Prog.declaredFunc(obj) - c.Args = append(c.Args, v) - } - return - } - - // sel.Kind()==MethodExpr indicates T.f() or (*T).f(): - // a statically dispatched call to the method f in the - // method-set of T or *T. T may be an interface. - // - // e.Fun would evaluate to a concrete method, interface - // wrapper function, or promotion wrapper. - // - // For now, we evaluate it in the usual way. - // - // TODO(adonovan): opt: inline expr() here, to make the - // call static and to avoid generation of wrappers. - // It's somewhat tricky as it may consume the first - // actual parameter if the call is "invoke" mode. - // - // Examples: - // type T struct{}; func (T) f() {} // "call" mode - // type T interface { f() } // "invoke" mode - // - // type S struct{ T } - // - // var s S - // S.f(s) - // (*S).f(&s) - // - // Suggested approach: - // - consume the first actual parameter expression - // and build it with b.expr(). - // - apply implicit field selections. - // - use MethodVal logic to populate fields of c. - } - - // Evaluate the function operand in the usual way. - c.Value = b.expr(fn, e.Fun) -} - -// emitCallArgs emits to f code for the actual parameters of call e to -// a (possibly built-in) function of effective type sig. -// The argument values are appended to args, which is then returned. -// -func (b *builder) emitCallArgs(fn *Function, sig *types.Signature, e *ast.CallExpr, args []Value) []Value { - // f(x, y, z...): pass slice z straight through. - if e.Ellipsis != 0 { - for i, arg := range e.Args { - v := emitConv(fn, b.expr(fn, arg), sig.Params().At(i).Type(), arg) - args = append(args, v) - } - return args - } - - offset := len(args) // 1 if call has receiver, 0 otherwise - - // Evaluate actual parameter expressions. - // - // If this is a chained call of the form f(g()) where g has - // multiple return values (MRV), they are flattened out into - // args; a suffix of them may end up in a varargs slice. - for _, arg := range e.Args { - v := b.expr(fn, arg) - if ttuple, ok := v.Type().(*types.Tuple); ok { // MRV chain - for i, n := 0, ttuple.Len(); i < n; i++ { - args = append(args, emitExtract(fn, v, i, arg)) - } - } else { - args = append(args, v) - } - } - - // Actual->formal assignability conversions for normal parameters. - np := sig.Params().Len() // number of normal parameters - if sig.Variadic() { - np-- - } - for i := 0; i < np; i++ { - args[offset+i] = emitConv(fn, args[offset+i], sig.Params().At(i).Type(), args[offset+i].Source()) - } - - // Actual->formal assignability conversions for variadic parameter, - // and construction of slice. - if sig.Variadic() { - varargs := args[offset+np:] - st := sig.Params().At(np).Type().(*types.Slice) - vt := st.Elem() - if len(varargs) == 0 { - args = append(args, emitConst(fn, nilConst(st))) - } else { - // Replace a suffix of args with a slice containing it. - at := types.NewArray(vt, int64(len(varargs))) - a := emitNew(fn, at, e) - a.source = e - a.Comment = "varargs" - for i, arg := range varargs { - iaddr := &IndexAddr{ - X: a, - Index: emitConst(fn, intConst(int64(i))), - } - iaddr.setType(types.NewPointer(vt)) - fn.emit(iaddr, e) - emitStore(fn, iaddr, arg, arg.Source()) - } - s := &Slice{X: a} - s.setType(st) - args[offset+np] = fn.emit(s, args[offset+np].Source()) - args = args[:offset+np+1] - } - } - return args -} - -// setCall emits to fn code to evaluate all the parameters of a function -// call e, and populates *c with those values. -// -func (b *builder) setCall(fn *Function, e *ast.CallExpr, c *CallCommon) { - // First deal with the f(...) part and optional receiver. - b.setCallFunc(fn, e, c) - - // Then append the other actual parameters. - sig, _ := fn.Pkg.typeOf(e.Fun).Underlying().(*types.Signature) - if sig == nil { - panic(fmt.Sprintf("no signature for call of %s", e.Fun)) - } - c.Args = b.emitCallArgs(fn, sig, e, c.Args) -} - -// assignOp emits to fn code to perform loc = val. -func (b *builder) assignOp(fn *Function, loc lvalue, val Value, op token.Token, source ast.Node) { - oldv := loc.load(fn, source) - loc.store(fn, emitArith(fn, op, oldv, emitConv(fn, val, oldv.Type(), source), loc.typ(), source), source) -} - -// localValueSpec emits to fn code to define all of the vars in the -// function-local ValueSpec, spec. -// -func (b *builder) localValueSpec(fn *Function, spec *ast.ValueSpec) { - switch { - case len(spec.Values) == len(spec.Names): - // e.g. var x, y = 0, 1 - // 1:1 assignment - for i, id := range spec.Names { - if !isBlankIdent(id) { - fn.addLocalForIdent(id) - } - lval := b.addr(fn, id, false) // non-escaping - b.assign(fn, lval, spec.Values[i], true, nil, spec) - } - - case len(spec.Values) == 0: - // e.g. var x, y int - // Locals are implicitly zero-initialized. - for _, id := range spec.Names { - if !isBlankIdent(id) { - lhs := fn.addLocalForIdent(id) - if fn.debugInfo() { - emitDebugRef(fn, id, lhs, true) - } - } - } - - default: - // e.g. var x, y = pos() - tuple := b.exprN(fn, spec.Values[0]) - for i, id := range spec.Names { - if !isBlankIdent(id) { - fn.addLocalForIdent(id) - lhs := b.addr(fn, id, false) // non-escaping - lhs.store(fn, emitExtract(fn, tuple, i, id), id) - } - } - } -} - -// assignStmt emits code to fn for a parallel assignment of rhss to lhss. -// isDef is true if this is a short variable declaration (:=). -// -// Note the similarity with localValueSpec. -// -func (b *builder) assignStmt(fn *Function, lhss, rhss []ast.Expr, isDef bool, source ast.Node) { - // Side effects of all LHSs and RHSs must occur in left-to-right order. - lvals := make([]lvalue, len(lhss)) - isZero := make([]bool, len(lhss)) - for i, lhs := range lhss { - var lval lvalue = blank{} - if !isBlankIdent(lhs) { - if isDef { - if obj := fn.Pkg.info.Defs[lhs.(*ast.Ident)]; obj != nil { - fn.addNamedLocal(obj, lhs) - isZero[i] = true - } - } - lval = b.addr(fn, lhs, false) // non-escaping - } - lvals[i] = lval - } - if len(lhss) == len(rhss) { - // Simple assignment: x = f() (!isDef) - // Parallel assignment: x, y = f(), g() (!isDef) - // or short var decl: x, y := f(), g() (isDef) - // - // In all cases, the RHSs may refer to the LHSs, - // so we need a storebuf. - var sb storebuf - for i := range rhss { - b.assign(fn, lvals[i], rhss[i], isZero[i], &sb, source) - } - sb.emit(fn) - } else { - // e.g. x, y = pos() - tuple := b.exprN(fn, rhss[0]) - emitDebugRef(fn, rhss[0], tuple, false) - for i, lval := range lvals { - lval.store(fn, emitExtract(fn, tuple, i, source), source) - } - } -} - -// arrayLen returns the length of the array whose composite literal elements are elts. -func (b *builder) arrayLen(fn *Function, elts []ast.Expr) int64 { - var max int64 = -1 - var i int64 = -1 - for _, e := range elts { - if kv, ok := e.(*ast.KeyValueExpr); ok { - i = b.expr(fn, kv.Key).(*Const).Int64() - } else { - i++ - } - if i > max { - max = i - } - } - return max + 1 -} - -// compLit emits to fn code to initialize a composite literal e at -// address addr with type typ. -// -// Nested composite literals are recursively initialized in place -// where possible. If isZero is true, compLit assumes that addr -// holds the zero value for typ. -// -// Because the elements of a composite literal may refer to the -// variables being updated, as in the second line below, -// x := T{a: 1} -// x = T{a: x.a} -// all the reads must occur before all the writes. Thus all stores to -// loc are emitted to the storebuf sb for later execution. -// -// A CompositeLit may have pointer type only in the recursive (nested) -// case when the type name is implicit. e.g. in []*T{{}}, the inner -// literal has type *T behaves like &T{}. -// In that case, addr must hold a T, not a *T. -// -func (b *builder) compLit(fn *Function, addr Value, e *ast.CompositeLit, isZero bool, sb *storebuf) { - typ := deref(fn.Pkg.typeOf(e)) - switch t := typ.Underlying().(type) { - case *types.Struct: - if !isZero && len(e.Elts) != t.NumFields() { - // memclear - sb.store(&address{addr, nil}, zeroValue(fn, deref(addr.Type()), e), e) - isZero = true - } - for i, e := range e.Elts { - fieldIndex := i - if kv, ok := e.(*ast.KeyValueExpr); ok { - fname := kv.Key.(*ast.Ident).Name - for i, n := 0, t.NumFields(); i < n; i++ { - sf := t.Field(i) - if sf.Name() == fname { - fieldIndex = i - e = kv.Value - break - } - } - } - sf := t.Field(fieldIndex) - faddr := &FieldAddr{ - X: addr, - Field: fieldIndex, - } - faddr.setType(types.NewPointer(sf.Type())) - fn.emit(faddr, e) - b.assign(fn, &address{addr: faddr, expr: e}, e, isZero, sb, e) - } - - case *types.Array, *types.Slice: - var at *types.Array - var array Value - switch t := t.(type) { - case *types.Slice: - at = types.NewArray(t.Elem(), b.arrayLen(fn, e.Elts)) - alloc := emitNew(fn, at, e) - alloc.Comment = "slicelit" - array = alloc - case *types.Array: - at = t - array = addr - - if !isZero && int64(len(e.Elts)) != at.Len() { - // memclear - sb.store(&address{array, nil}, zeroValue(fn, deref(array.Type()), e), e) - } - } - - var idx *Const - for _, e := range e.Elts { - if kv, ok := e.(*ast.KeyValueExpr); ok { - idx = b.expr(fn, kv.Key).(*Const) - e = kv.Value - } else { - var idxval int64 - if idx != nil { - idxval = idx.Int64() + 1 - } - idx = emitConst(fn, intConst(idxval)) - } - iaddr := &IndexAddr{ - X: array, - Index: idx, - } - iaddr.setType(types.NewPointer(at.Elem())) - fn.emit(iaddr, e) - if t != at { // slice - // backing array is unaliased => storebuf not needed. - b.assign(fn, &address{addr: iaddr, expr: e}, e, true, nil, e) - } else { - b.assign(fn, &address{addr: iaddr, expr: e}, e, true, sb, e) - } - } - - if t != at { // slice - s := &Slice{X: array} - s.setType(typ) - sb.store(&address{addr: addr, expr: e}, fn.emit(s, e), e) - } - - case *types.Map: - m := &MakeMap{Reserve: emitConst(fn, intConst(int64(len(e.Elts))))} - m.setType(typ) - fn.emit(m, e) - for _, e := range e.Elts { - e := e.(*ast.KeyValueExpr) - - // If a key expression in a map literal is itself a - // composite literal, the type may be omitted. - // For example: - // map[*struct{}]bool{{}: true} - // An &-operation may be implied: - // map[*struct{}]bool{&struct{}{}: true} - var key Value - if _, ok := unparen(e.Key).(*ast.CompositeLit); ok && isPointer(t.Key()) { - // A CompositeLit never evaluates to a pointer, - // so if the type of the location is a pointer, - // an &-operation is implied. - key = b.addr(fn, e.Key, true).address(fn) - } else { - key = b.expr(fn, e.Key) - } - - loc := element{ - m: m, - k: emitConv(fn, key, t.Key(), e), - t: t.Elem(), - } - - // We call assign() only because it takes care - // of any &-operation required in the recursive - // case, e.g., - // map[int]*struct{}{0: {}} implies &struct{}{}. - // In-place update is of course impossible, - // and no storebuf is needed. - b.assign(fn, &loc, e.Value, true, nil, e) - } - sb.store(&address{addr: addr, expr: e}, m, e) - - default: - panic("unexpected CompositeLit type: " + t.String()) - } -} - -func (b *builder) switchStmt(fn *Function, s *ast.SwitchStmt, label *lblock) { - if s.Tag == nil { - b.switchStmtDynamic(fn, s, label) - return - } - dynamic := false - for _, iclause := range s.Body.List { - clause := iclause.(*ast.CaseClause) - for _, cond := range clause.List { - if fn.Pkg.info.Types[unparen(cond)].Value == nil { - dynamic = true - break - } - } - } - - if dynamic { - b.switchStmtDynamic(fn, s, label) - return - } - - if s.Init != nil { - b.stmt(fn, s.Init) - } - - entry := fn.currentBlock - tag := b.expr(fn, s.Tag) - - heads := make([]*BasicBlock, 0, len(s.Body.List)) - bodies := make([]*BasicBlock, len(s.Body.List)) - conds := make([]Value, 0, len(s.Body.List)) - - hasDefault := false - done := fn.newBasicBlock(fmt.Sprintf("switch.done")) - if label != nil { - label._break = done - } - for i, stmt := range s.Body.List { - body := fn.newBasicBlock(fmt.Sprintf("switch.body.%d", i)) - bodies[i] = body - cas := stmt.(*ast.CaseClause) - if cas.List == nil { - // default branch - hasDefault = true - head := fn.newBasicBlock(fmt.Sprintf("switch.head.%d", i)) - conds = append(conds, nil) - heads = append(heads, head) - fn.currentBlock = head - emitJump(fn, body, cas) - } - for j, cond := range stmt.(*ast.CaseClause).List { - fn.currentBlock = entry - head := fn.newBasicBlock(fmt.Sprintf("switch.head.%d.%d", i, j)) - conds = append(conds, b.expr(fn, cond)) - heads = append(heads, head) - fn.currentBlock = head - emitJump(fn, body, cond) - } - } - - for i, stmt := range s.Body.List { - clause := stmt.(*ast.CaseClause) - body := bodies[i] - fn.currentBlock = body - fallthru := done - if i+1 < len(bodies) { - fallthru = bodies[i+1] - } - fn.targets = &targets{ - tail: fn.targets, - _break: done, - _fallthrough: fallthru, - } - b.stmtList(fn, clause.Body) - fn.targets = fn.targets.tail - emitJump(fn, done, stmt) - } - - if !hasDefault { - head := fn.newBasicBlock(fmt.Sprintf("switch.head.implicit-default")) - body := fn.newBasicBlock("switch.body.implicit-default") - fn.currentBlock = head - emitJump(fn, body, s) - fn.currentBlock = body - emitJump(fn, done, s) - heads = append(heads, head) - conds = append(conds, nil) - } - - if len(heads) != len(conds) { - panic(fmt.Sprintf("internal error: %d heads for %d conds", len(heads), len(conds))) - } - for _, head := range heads { - addEdge(entry, head) - } - fn.currentBlock = entry - entry.emit(&ConstantSwitch{ - Tag: tag, - Conds: conds, - }, s) - fn.currentBlock = done -} - -// switchStmt emits to fn code for the switch statement s, optionally -// labelled by label. -// -func (b *builder) switchStmtDynamic(fn *Function, s *ast.SwitchStmt, label *lblock) { - // We treat SwitchStmt like a sequential if-else chain. - // Multiway dispatch can be recovered later by irutil.Switches() - // to those cases that are free of side effects. - if s.Init != nil { - b.stmt(fn, s.Init) - } - kTrue := emitConst(fn, NewConst(constant.MakeBool(true), tBool)) - - var tagv Value = kTrue - var tagSource ast.Node = s - if s.Tag != nil { - tagv = b.expr(fn, s.Tag) - tagSource = s.Tag - } - // lifting only considers loads and stores, but we want different - // sigma nodes for the different comparisons. use a temporary and - // load it in every branch. - tag := fn.addLocal(tagv.Type(), tagSource) - tag.Comment = "switch.tag" - emitStore(fn, tag, tagv, tagSource) - - done := fn.newBasicBlock("switch.done") - if label != nil { - label._break = done - } - // We pull the default case (if present) down to the end. - // But each fallthrough label must point to the next - // body block in source order, so we preallocate a - // body block (fallthru) for the next case. - // Unfortunately this makes for a confusing block order. - var dfltBody *[]ast.Stmt - var dfltFallthrough *BasicBlock - var fallthru, dfltBlock *BasicBlock - ncases := len(s.Body.List) - for i, clause := range s.Body.List { - body := fallthru - if body == nil { - body = fn.newBasicBlock("switch.body") // first case only - } - - // Preallocate body block for the next case. - fallthru = done - if i+1 < ncases { - fallthru = fn.newBasicBlock("switch.body") - } - - cc := clause.(*ast.CaseClause) - if cc.List == nil { - // Default case. - dfltBody = &cc.Body - dfltFallthrough = fallthru - dfltBlock = body - continue - } - - var nextCond *BasicBlock - for _, cond := range cc.List { - nextCond = fn.newBasicBlock("switch.next") - if tagv == kTrue { - // emit a proper if/else chain instead of a comparison - // of a value against true. - // - // NOTE(dh): adonovan had a todo saying "don't forget - // conversions though". As far as I can tell, there - // aren't any conversions that we need to take care of - // here. `case bool(a) && bool(b)` as well as `case - // bool(a && b)` are being taken care of by b.cond, - // and `case a` where a is not of type bool is - // invalid. - b.cond(fn, cond, body, nextCond) - } else { - cond := emitCompare(fn, token.EQL, emitLoad(fn, tag, cond), b.expr(fn, cond), cond) - emitIf(fn, cond, body, nextCond, cond.Source()) - } - - fn.currentBlock = nextCond - } - fn.currentBlock = body - fn.targets = &targets{ - tail: fn.targets, - _break: done, - _fallthrough: fallthru, - } - b.stmtList(fn, cc.Body) - fn.targets = fn.targets.tail - emitJump(fn, done, s) - fn.currentBlock = nextCond - } - if dfltBlock != nil { - // The lack of a Source for the jump doesn't matter, block - // fusing will get rid of the jump later. - - emitJump(fn, dfltBlock, s) - fn.currentBlock = dfltBlock - fn.targets = &targets{ - tail: fn.targets, - _break: done, - _fallthrough: dfltFallthrough, - } - b.stmtList(fn, *dfltBody) - fn.targets = fn.targets.tail - } - emitJump(fn, done, s) - fn.currentBlock = done -} - -func (b *builder) typeSwitchStmt(fn *Function, s *ast.TypeSwitchStmt, label *lblock) { - if s.Init != nil { - b.stmt(fn, s.Init) - } - - var tag Value - switch e := s.Assign.(type) { - case *ast.ExprStmt: // x.(type) - tag = b.expr(fn, unparen(e.X).(*ast.TypeAssertExpr).X) - case *ast.AssignStmt: // y := x.(type) - tag = b.expr(fn, unparen(e.Rhs[0]).(*ast.TypeAssertExpr).X) - default: - panic("unreachable") - } - tagPtr := fn.addLocal(tag.Type(), tag.Source()) - emitStore(fn, tagPtr, tag, tag.Source()) - - // +1 in case there's no explicit default case - heads := make([]*BasicBlock, 0, len(s.Body.List)+1) - - entry := fn.currentBlock - done := fn.newBasicBlock("done") - if label != nil { - label._break = done - } - - // set up type switch and constant switch, populate their conditions - tswtch := &TypeSwitch{ - Tag: emitLoad(fn, tagPtr, tag.Source()), - Conds: make([]types.Type, 0, len(s.Body.List)+1), - } - cswtch := &ConstantSwitch{ - Conds: make([]Value, 0, len(s.Body.List)+1), - } - - rets := make([]types.Type, 0, len(s.Body.List)+1) - index := 0 - var default_ *ast.CaseClause - for _, clause := range s.Body.List { - cc := clause.(*ast.CaseClause) - if obj := fn.Pkg.info.Implicits[cc]; obj != nil { - fn.addNamedLocal(obj, cc) - } - if cc.List == nil { - // default case - default_ = cc - } else { - for _, expr := range cc.List { - tswtch.Conds = append(tswtch.Conds, fn.Pkg.typeOf(expr)) - cswtch.Conds = append(cswtch.Conds, emitConst(fn, intConst(int64(index)))) - index++ - } - if len(cc.List) == 1 { - rets = append(rets, fn.Pkg.typeOf(cc.List[0])) - } else { - for range cc.List { - rets = append(rets, tag.Type()) - } - } - } - } - - // default branch - rets = append(rets, tag.Type()) - - var vars []*types.Var - vars = append(vars, varIndex) - for _, typ := range rets { - vars = append(vars, anonVar(typ)) - } - tswtch.setType(types.NewTuple(vars...)) - // default branch - fn.currentBlock = entry - fn.emit(tswtch, s) - cswtch.Conds = append(cswtch.Conds, emitConst(fn, intConst(int64(-1)))) - // in theory we should add a local and stores/loads for tswtch, to - // generate sigma nodes in the branches. however, there isn't any - // useful information we could possibly attach to it. - cswtch.Tag = emitExtract(fn, tswtch, 0, s) - fn.emit(cswtch, s) - - // build heads and bodies - index = 0 - for _, clause := range s.Body.List { - cc := clause.(*ast.CaseClause) - if cc.List == nil { - continue - } - - body := fn.newBasicBlock("typeswitch.body") - for _, expr := range cc.List { - head := fn.newBasicBlock("typeswitch.head") - heads = append(heads, head) - fn.currentBlock = head - - if obj := fn.Pkg.info.Implicits[cc]; obj != nil { - // In a switch y := x.(type), each case clause - // implicitly declares a distinct object y. - // In a single-type case, y has that type. - // In multi-type cases, 'case nil' and default, - // y has the same type as the interface operand. - - l := fn.objects[obj] - if rets[index] == tUntypedNil { - emitStore(fn, l, emitConst(fn, nilConst(tswtch.Tag.Type())), s.Assign) - } else { - x := emitExtract(fn, tswtch, index+1, s.Assign) - emitStore(fn, l, x, nil) - } - } - - emitJump(fn, body, expr) - index++ - } - fn.currentBlock = body - fn.targets = &targets{ - tail: fn.targets, - _break: done, - } - b.stmtList(fn, cc.Body) - fn.targets = fn.targets.tail - emitJump(fn, done, clause) - } - - if default_ == nil { - // implicit default - heads = append(heads, done) - } else { - body := fn.newBasicBlock("typeswitch.default") - heads = append(heads, body) - fn.currentBlock = body - fn.targets = &targets{ - tail: fn.targets, - _break: done, - } - if obj := fn.Pkg.info.Implicits[default_]; obj != nil { - l := fn.objects[obj] - x := emitExtract(fn, tswtch, index+1, s.Assign) - emitStore(fn, l, x, s) - } - b.stmtList(fn, default_.Body) - fn.targets = fn.targets.tail - emitJump(fn, done, s) - } - - fn.currentBlock = entry - for _, head := range heads { - addEdge(entry, head) - } - fn.currentBlock = done -} - -// selectStmt emits to fn code for the select statement s, optionally -// labelled by label. -// -func (b *builder) selectStmt(fn *Function, s *ast.SelectStmt, label *lblock) (noreturn bool) { - if len(s.Body.List) == 0 { - instr := &Select{Blocking: true} - instr.setType(types.NewTuple(varIndex, varOk)) - fn.emit(instr, s) - fn.emit(new(Unreachable), s) - addEdge(fn.currentBlock, fn.Exit) - return true - } - - // A blocking select of a single case degenerates to a - // simple send or receive. - // TODO(adonovan): opt: is this optimization worth its weight? - if len(s.Body.List) == 1 { - clause := s.Body.List[0].(*ast.CommClause) - if clause.Comm != nil { - b.stmt(fn, clause.Comm) - done := fn.newBasicBlock("select.done") - if label != nil { - label._break = done - } - fn.targets = &targets{ - tail: fn.targets, - _break: done, - } - b.stmtList(fn, clause.Body) - fn.targets = fn.targets.tail - emitJump(fn, done, clause) - fn.currentBlock = done - return false - } - } - - // First evaluate all channels in all cases, and find - // the directions of each state. - var states []*SelectState - blocking := true - debugInfo := fn.debugInfo() - for _, clause := range s.Body.List { - var st *SelectState - switch comm := clause.(*ast.CommClause).Comm.(type) { - case nil: // default case - blocking = false - continue - - case *ast.SendStmt: // ch<- i - ch := b.expr(fn, comm.Chan) - st = &SelectState{ - Dir: types.SendOnly, - Chan: ch, - Send: emitConv(fn, b.expr(fn, comm.Value), - ch.Type().Underlying().(*types.Chan).Elem(), comm), - Pos: comm.Arrow, - } - if debugInfo { - st.DebugNode = comm - } - - case *ast.AssignStmt: // x := <-ch - recv := unparen(comm.Rhs[0]).(*ast.UnaryExpr) - st = &SelectState{ - Dir: types.RecvOnly, - Chan: b.expr(fn, recv.X), - Pos: recv.OpPos, - } - if debugInfo { - st.DebugNode = recv - } - - case *ast.ExprStmt: // <-ch - recv := unparen(comm.X).(*ast.UnaryExpr) - st = &SelectState{ - Dir: types.RecvOnly, - Chan: b.expr(fn, recv.X), - Pos: recv.OpPos, - } - if debugInfo { - st.DebugNode = recv - } - } - states = append(states, st) - } - - // We dispatch on the (fair) result of Select using a - // switch on the returned index. - sel := &Select{ - States: states, - Blocking: blocking, - } - sel.source = s - var vars []*types.Var - vars = append(vars, varIndex, varOk) - for _, st := range states { - if st.Dir == types.RecvOnly { - tElem := st.Chan.Type().Underlying().(*types.Chan).Elem() - vars = append(vars, anonVar(tElem)) - } - } - sel.setType(types.NewTuple(vars...)) - fn.emit(sel, s) - idx := emitExtract(fn, sel, 0, s) - - done := fn.newBasicBlock("select.done") - if label != nil { - label._break = done - } - - entry := fn.currentBlock - swtch := &ConstantSwitch{ - Tag: idx, - // one condition per case - Conds: make([]Value, 0, len(s.Body.List)+1), - } - // note that we don't need heads; a select case can only have a single condition - var bodies []*BasicBlock - - state := 0 - r := 2 // index in 'sel' tuple of value; increments if st.Dir==RECV - for _, cc := range s.Body.List { - clause := cc.(*ast.CommClause) - if clause.Comm == nil { - body := fn.newBasicBlock("select.default") - fn.currentBlock = body - bodies = append(bodies, body) - fn.targets = &targets{ - tail: fn.targets, - _break: done, - } - b.stmtList(fn, clause.Body) - emitJump(fn, done, s) - fn.targets = fn.targets.tail - swtch.Conds = append(swtch.Conds, emitConst(fn, intConst(-1))) - continue - } - swtch.Conds = append(swtch.Conds, emitConst(fn, intConst(int64(state)))) - body := fn.newBasicBlock("select.body") - fn.currentBlock = body - bodies = append(bodies, body) - fn.targets = &targets{ - tail: fn.targets, - _break: done, - } - switch comm := clause.Comm.(type) { - case *ast.ExprStmt: // <-ch - if debugInfo { - v := emitExtract(fn, sel, r, comm) - emitDebugRef(fn, states[state].DebugNode.(ast.Expr), v, false) - } - r++ - - case *ast.AssignStmt: // x := <-states[state].Chan - if comm.Tok == token.DEFINE { - fn.addLocalForIdent(comm.Lhs[0].(*ast.Ident)) - } - x := b.addr(fn, comm.Lhs[0], false) // non-escaping - v := emitExtract(fn, sel, r, comm) - if debugInfo { - emitDebugRef(fn, states[state].DebugNode.(ast.Expr), v, false) - } - x.store(fn, v, comm) - - if len(comm.Lhs) == 2 { // x, ok := ... - if comm.Tok == token.DEFINE { - fn.addLocalForIdent(comm.Lhs[1].(*ast.Ident)) - } - ok := b.addr(fn, comm.Lhs[1], false) // non-escaping - ok.store(fn, emitExtract(fn, sel, 1, comm), comm) - } - r++ - } - b.stmtList(fn, clause.Body) - fn.targets = fn.targets.tail - emitJump(fn, done, s) - state++ - } - fn.currentBlock = entry - fn.emit(swtch, s) - for _, body := range bodies { - addEdge(entry, body) - } - fn.currentBlock = done - return false -} - -// forStmt emits to fn code for the for statement s, optionally -// labelled by label. -// -func (b *builder) forStmt(fn *Function, s *ast.ForStmt, label *lblock) { - // ...init... - // jump loop - // loop: - // if cond goto body else done - // body: - // ...body... - // jump post - // post: (target of continue) - // ...post... - // jump loop - // done: (target of break) - if s.Init != nil { - b.stmt(fn, s.Init) - } - body := fn.newBasicBlock("for.body") - done := fn.newBasicBlock("for.done") // target of 'break' - loop := body // target of back-edge - if s.Cond != nil { - loop = fn.newBasicBlock("for.loop") - } - cont := loop // target of 'continue' - if s.Post != nil { - cont = fn.newBasicBlock("for.post") - } - if label != nil { - label._break = done - label._continue = cont - } - emitJump(fn, loop, s) - fn.currentBlock = loop - if loop != body { - b.cond(fn, s.Cond, body, done) - fn.currentBlock = body - } - fn.targets = &targets{ - tail: fn.targets, - _break: done, - _continue: cont, - } - b.stmt(fn, s.Body) - fn.targets = fn.targets.tail - emitJump(fn, cont, s) - - if s.Post != nil { - fn.currentBlock = cont - b.stmt(fn, s.Post) - emitJump(fn, loop, s) // back-edge - } - fn.currentBlock = done -} - -// rangeIndexed emits to fn the header for an integer-indexed loop -// over array, *array or slice value x. -// The v result is defined only if tv is non-nil. -// forPos is the position of the "for" token. -// -func (b *builder) rangeIndexed(fn *Function, x Value, tv types.Type, source ast.Node) (k, v Value, loop, done *BasicBlock) { - // - // length = len(x) - // index = -1 - // loop: (target of continue) - // index++ - // if index < length goto body else done - // body: - // k = index - // v = x[index] - // ...body... - // jump loop - // done: (target of break) - - // Determine number of iterations. - var length Value - if arr, ok := deref(x.Type()).Underlying().(*types.Array); ok { - // For array or *array, the number of iterations is - // known statically thanks to the type. We avoid a - // data dependence upon x, permitting later dead-code - // elimination if x is pure, static unrolling, etc. - // Ranging over a nil *array may have >0 iterations. - // We still generate code for x, in case it has effects. - length = emitConst(fn, intConst(arr.Len())) - } else { - // length = len(x). - var c Call - c.Call.Value = makeLen(x.Type()) - c.Call.Args = []Value{x} - c.setType(tInt) - length = fn.emit(&c, source) - } - - index := fn.addLocal(tInt, source) - emitStore(fn, index, emitConst(fn, intConst(-1)), source) - - loop = fn.newBasicBlock("rangeindex.loop") - emitJump(fn, loop, source) - fn.currentBlock = loop - - incr := &BinOp{ - Op: token.ADD, - X: emitLoad(fn, index, source), - Y: emitConst(fn, intConst(1)), - } - incr.setType(tInt) - emitStore(fn, index, fn.emit(incr, source), source) - - body := fn.newBasicBlock("rangeindex.body") - done = fn.newBasicBlock("rangeindex.done") - emitIf(fn, emitCompare(fn, token.LSS, incr, length, source), body, done, source) - fn.currentBlock = body - - k = emitLoad(fn, index, source) - if tv != nil { - switch t := x.Type().Underlying().(type) { - case *types.Array: - instr := &Index{ - X: x, - Index: k, - } - instr.setType(t.Elem()) - v = fn.emit(instr, source) - - case *types.Pointer: // *array - instr := &IndexAddr{ - X: x, - Index: k, - } - instr.setType(types.NewPointer(t.Elem().Underlying().(*types.Array).Elem())) - v = emitLoad(fn, fn.emit(instr, source), source) - - case *types.Slice: - instr := &IndexAddr{ - X: x, - Index: k, - } - instr.setType(types.NewPointer(t.Elem())) - v = emitLoad(fn, fn.emit(instr, source), source) - - default: - panic("rangeIndexed x:" + t.String()) - } - } - return -} - -// rangeIter emits to fn the header for a loop using -// Range/Next/Extract to iterate over map or string value x. -// tk and tv are the types of the key/value results k and v, or nil -// if the respective component is not wanted. -// -func (b *builder) rangeIter(fn *Function, x Value, tk, tv types.Type, source ast.Node) (k, v Value, loop, done *BasicBlock) { - // - // it = range x - // loop: (target of continue) - // okv = next it (ok, key, value) - // ok = extract okv #0 - // if ok goto body else done - // body: - // k = extract okv #1 - // v = extract okv #2 - // ...body... - // jump loop - // done: (target of break) - // - - if tk == nil { - tk = tInvalid - } - if tv == nil { - tv = tInvalid - } - - rng := &Range{X: x} - rng.setType(tRangeIter) - it := fn.emit(rng, source) - - loop = fn.newBasicBlock("rangeiter.loop") - emitJump(fn, loop, source) - fn.currentBlock = loop - - _, isString := x.Type().Underlying().(*types.Basic) - - okv := &Next{ - Iter: it, - IsString: isString, - } - okv.setType(types.NewTuple( - varOk, - newVar("k", tk), - newVar("v", tv), - )) - fn.emit(okv, source) - - body := fn.newBasicBlock("rangeiter.body") - done = fn.newBasicBlock("rangeiter.done") - emitIf(fn, emitExtract(fn, okv, 0, source), body, done, source) - fn.currentBlock = body - - if tk != tInvalid { - k = emitExtract(fn, okv, 1, source) - } - if tv != tInvalid { - v = emitExtract(fn, okv, 2, source) - } - return -} - -// rangeChan emits to fn the header for a loop that receives from -// channel x until it fails. -// tk is the channel's element type, or nil if the k result is -// not wanted -// pos is the position of the '=' or ':=' token. -// -func (b *builder) rangeChan(fn *Function, x Value, tk types.Type, source ast.Node) (k Value, loop, done *BasicBlock) { - // - // loop: (target of continue) - // ko = <-x (key, ok) - // ok = extract ko #1 - // if ok goto body else done - // body: - // k = extract ko #0 - // ... - // goto loop - // done: (target of break) - - loop = fn.newBasicBlock("rangechan.loop") - emitJump(fn, loop, source) - fn.currentBlock = loop - retv := emitRecv(fn, x, true, types.NewTuple(newVar("k", x.Type().Underlying().(*types.Chan).Elem()), varOk), source) - body := fn.newBasicBlock("rangechan.body") - done = fn.newBasicBlock("rangechan.done") - emitIf(fn, emitExtract(fn, retv, 1, source), body, done, source) - fn.currentBlock = body - if tk != nil { - k = emitExtract(fn, retv, 0, source) - } - return -} - -// rangeStmt emits to fn code for the range statement s, optionally -// labelled by label. -// -func (b *builder) rangeStmt(fn *Function, s *ast.RangeStmt, label *lblock, source ast.Node) { - var tk, tv types.Type - if s.Key != nil && !isBlankIdent(s.Key) { - tk = fn.Pkg.typeOf(s.Key) - } - if s.Value != nil && !isBlankIdent(s.Value) { - tv = fn.Pkg.typeOf(s.Value) - } - - // If iteration variables are defined (:=), this - // occurs once outside the loop. - // - // Unlike a short variable declaration, a RangeStmt - // using := never redeclares an existing variable; it - // always creates a new one. - if s.Tok == token.DEFINE { - if tk != nil { - fn.addLocalForIdent(s.Key.(*ast.Ident)) - } - if tv != nil { - fn.addLocalForIdent(s.Value.(*ast.Ident)) - } - } - - x := b.expr(fn, s.X) - - var k, v Value - var loop, done *BasicBlock - switch rt := x.Type().Underlying().(type) { - case *types.Slice, *types.Array, *types.Pointer: // *array - k, v, loop, done = b.rangeIndexed(fn, x, tv, source) - - case *types.Chan: - k, loop, done = b.rangeChan(fn, x, tk, source) - - case *types.Map, *types.Basic: // string - k, v, loop, done = b.rangeIter(fn, x, tk, tv, source) - - default: - panic("Cannot range over: " + rt.String()) - } - - // Evaluate both LHS expressions before we update either. - var kl, vl lvalue - if tk != nil { - kl = b.addr(fn, s.Key, false) // non-escaping - } - if tv != nil { - vl = b.addr(fn, s.Value, false) // non-escaping - } - if tk != nil { - kl.store(fn, k, s) - } - if tv != nil { - vl.store(fn, v, s) - } - - if label != nil { - label._break = done - label._continue = loop - } - - fn.targets = &targets{ - tail: fn.targets, - _break: done, - _continue: loop, - } - b.stmt(fn, s.Body) - fn.targets = fn.targets.tail - emitJump(fn, loop, source) // back-edge - fn.currentBlock = done -} - -// stmt lowers statement s to IR form, emitting code to fn. -func (b *builder) stmt(fn *Function, _s ast.Stmt) { - // The label of the current statement. If non-nil, its _goto - // target is always set; its _break and _continue are set only - // within the body of switch/typeswitch/select/for/range. - // It is effectively an additional default-nil parameter of stmt(). - var label *lblock -start: - switch s := _s.(type) { - case *ast.EmptyStmt: - // ignore. (Usually removed by gofmt.) - - case *ast.DeclStmt: // Con, Var or Typ - d := s.Decl.(*ast.GenDecl) - if d.Tok == token.VAR { - for _, spec := range d.Specs { - if vs, ok := spec.(*ast.ValueSpec); ok { - b.localValueSpec(fn, vs) - } - } - } - - case *ast.LabeledStmt: - label = fn.labelledBlock(s.Label) - emitJump(fn, label._goto, s) - fn.currentBlock = label._goto - _s = s.Stmt - goto start // effectively: tailcall stmt(fn, s.Stmt, label) - - case *ast.ExprStmt: - b.expr(fn, s.X) - - case *ast.SendStmt: - instr := &Send{ - Chan: b.expr(fn, s.Chan), - X: emitConv(fn, b.expr(fn, s.Value), - fn.Pkg.typeOf(s.Chan).Underlying().(*types.Chan).Elem(), s), - } - fn.emit(instr, s) - - case *ast.IncDecStmt: - op := token.ADD - if s.Tok == token.DEC { - op = token.SUB - } - loc := b.addr(fn, s.X, false) - b.assignOp(fn, loc, emitConst(fn, NewConst(constant.MakeInt64(1), loc.typ())), op, s) - - case *ast.AssignStmt: - switch s.Tok { - case token.ASSIGN, token.DEFINE: - b.assignStmt(fn, s.Lhs, s.Rhs, s.Tok == token.DEFINE, _s) - - default: // +=, etc. - op := s.Tok + token.ADD - token.ADD_ASSIGN - b.assignOp(fn, b.addr(fn, s.Lhs[0], false), b.expr(fn, s.Rhs[0]), op, s) - } - - case *ast.GoStmt: - // The "intrinsics" new/make/len/cap are forbidden here. - // panic is treated like an ordinary function call. - v := Go{} - b.setCall(fn, s.Call, &v.Call) - fn.emit(&v, s) - - case *ast.DeferStmt: - // The "intrinsics" new/make/len/cap are forbidden here. - // panic is treated like an ordinary function call. - v := Defer{} - b.setCall(fn, s.Call, &v.Call) - fn.hasDefer = true - fn.emit(&v, s) - - case *ast.ReturnStmt: - // TODO(dh): we could emit tigher position information by - // using the ith returned expression - - var results []Value - if len(s.Results) == 1 && fn.Signature.Results().Len() > 1 { - // Return of one expression in a multi-valued function. - tuple := b.exprN(fn, s.Results[0]) - ttuple := tuple.Type().(*types.Tuple) - for i, n := 0, ttuple.Len(); i < n; i++ { - results = append(results, - emitConv(fn, emitExtract(fn, tuple, i, s), - fn.Signature.Results().At(i).Type(), s)) - } - } else { - // 1:1 return, or no-arg return in non-void function. - for i, r := range s.Results { - v := emitConv(fn, b.expr(fn, r), fn.Signature.Results().At(i).Type(), s) - results = append(results, v) - } - } - - ret := fn.results() - for i, r := range results { - emitStore(fn, ret[i], r, s) - } - - emitJump(fn, fn.Exit, s) - fn.currentBlock = fn.newBasicBlock("unreachable") - - case *ast.BranchStmt: - var block *BasicBlock - switch s.Tok { - case token.BREAK: - if s.Label != nil { - block = fn.labelledBlock(s.Label)._break - } else { - for t := fn.targets; t != nil && block == nil; t = t.tail { - block = t._break - } - } - - case token.CONTINUE: - if s.Label != nil { - block = fn.labelledBlock(s.Label)._continue - } else { - for t := fn.targets; t != nil && block == nil; t = t.tail { - block = t._continue - } - } - - case token.FALLTHROUGH: - for t := fn.targets; t != nil && block == nil; t = t.tail { - block = t._fallthrough - } - - case token.GOTO: - block = fn.labelledBlock(s.Label)._goto - } - j := emitJump(fn, block, s) - j.Comment = s.Tok.String() - fn.currentBlock = fn.newBasicBlock("unreachable") - - case *ast.BlockStmt: - b.stmtList(fn, s.List) - - case *ast.IfStmt: - if s.Init != nil { - b.stmt(fn, s.Init) - } - then := fn.newBasicBlock("if.then") - done := fn.newBasicBlock("if.done") - els := done - if s.Else != nil { - els = fn.newBasicBlock("if.else") - } - instr := b.cond(fn, s.Cond, then, els) - instr.source = s - fn.currentBlock = then - b.stmt(fn, s.Body) - emitJump(fn, done, s) - - if s.Else != nil { - fn.currentBlock = els - b.stmt(fn, s.Else) - emitJump(fn, done, s) - } - - fn.currentBlock = done - - case *ast.SwitchStmt: - b.switchStmt(fn, s, label) - - case *ast.TypeSwitchStmt: - b.typeSwitchStmt(fn, s, label) - - case *ast.SelectStmt: - if b.selectStmt(fn, s, label) { - // the select has no cases, it blocks forever - fn.currentBlock = fn.newBasicBlock("unreachable") - } - - case *ast.ForStmt: - b.forStmt(fn, s, label) - - case *ast.RangeStmt: - b.rangeStmt(fn, s, label, s) - - default: - panic(fmt.Sprintf("unexpected statement kind: %T", s)) - } -} - -// buildFunction builds IR code for the body of function fn. Idempotent. -func (b *builder) buildFunction(fn *Function) { - if fn.Blocks != nil { - return // building already started - } - - var recvField *ast.FieldList - var body *ast.BlockStmt - var functype *ast.FuncType - switch n := fn.source.(type) { - case nil: - return // not a Go source function. (Synthetic, or from object file.) - case *ast.FuncDecl: - functype = n.Type - recvField = n.Recv - body = n.Body - case *ast.FuncLit: - functype = n.Type - body = n.Body - default: - panic(n) - } - - if fn.Package().Pkg.Path() == "syscall" && fn.Name() == "Exit" { - // syscall.Exit is a stub and the way os.Exit terminates the - // process. Note that there are other functions in the runtime - // that also terminate or unwind that we cannot analyze. - // However, they aren't stubs, so buildExits ends up getting - // called on them, so that's where we handle those special - // cases. - fn.WillExit = true - } - - if body == nil { - // External function. - if fn.Params == nil { - // This condition ensures we add a non-empty - // params list once only, but we may attempt - // the degenerate empty case repeatedly. - // TODO(adonovan): opt: don't do that. - - // We set Function.Params even though there is no body - // code to reference them. This simplifies clients. - if recv := fn.Signature.Recv(); recv != nil { - // XXX synthesize an ast.Node - fn.addParamObj(recv, nil) - } - params := fn.Signature.Params() - for i, n := 0, params.Len(); i < n; i++ { - // XXX synthesize an ast.Node - fn.addParamObj(params.At(i), nil) - } - } - return - } - if fn.Prog.mode&LogSource != 0 { - defer logStack("build function %s @ %s", fn, fn.Prog.Fset.Position(fn.Pos()))() - } - fn.blocksets = b.blocksets - fn.startBody() - fn.createSyntacticParams(recvField, functype) - fn.exitBlock() - b.stmt(fn, body) - if cb := fn.currentBlock; cb != nil && (cb == fn.Blocks[0] || cb.Preds != nil) { - // Control fell off the end of the function's body block. - // - // Block optimizations eliminate the current block, if - // unreachable. It is a builder invariant that - // if this no-arg return is ill-typed for - // fn.Signature.Results, this block must be - // unreachable. The sanity checker checks this. - // fn.emit(new(RunDefers)) - // fn.emit(new(Return)) - emitJump(fn, fn.Exit, nil) - } - optimizeBlocks(fn) - buildFakeExits(fn) - b.buildExits(fn) - b.addUnreachables(fn) - fn.finishBody() - b.blocksets = fn.blocksets -} - -// buildFuncDecl builds IR code for the function or method declared -// by decl in package pkg. -// -func (b *builder) buildFuncDecl(pkg *Package, decl *ast.FuncDecl) { - id := decl.Name - if isBlankIdent(id) { - return // discard - } - fn := pkg.values[pkg.info.Defs[id]].(*Function) - if decl.Recv == nil && id.Name == "init" { - var v Call - v.Call.Value = fn - v.setType(types.NewTuple()) - pkg.init.emit(&v, decl) - } - fn.source = decl - b.buildFunction(fn) -} - -// Build calls Package.Build for each package in prog. -// -// Build is intended for whole-program analysis; a typical compiler -// need only build a single package. -// -// Build is idempotent and thread-safe. -// -func (prog *Program) Build() { - for _, p := range prog.packages { - p.Build() - } -} - -// Build builds IR code for all functions and vars in package p. -// -// Precondition: CreatePackage must have been called for all of p's -// direct imports (and hence its direct imports must have been -// error-free). -// -// Build is idempotent and thread-safe. -// -func (p *Package) Build() { p.buildOnce.Do(p.build) } - -func (p *Package) build() { - if p.info == nil { - return // synthetic package, e.g. "testmain" - } - - // Ensure we have runtime type info for all exported members. - // TODO(adonovan): ideally belongs in memberFromObject, but - // that would require package creation in topological order. - for name, mem := range p.Members { - if ast.IsExported(name) { - p.Prog.needMethodsOf(mem.Type()) - } - } - if p.Prog.mode&LogSource != 0 { - defer logStack("build %s", p)() - } - init := p.init - init.startBody() - init.exitBlock() - - var done *BasicBlock - - // Make init() skip if package is already initialized. - initguard := p.Var("init$guard") - doinit := init.newBasicBlock("init.start") - done = init.Exit - emitIf(init, emitLoad(init, initguard, nil), done, doinit, nil) - init.currentBlock = doinit - emitStore(init, initguard, emitConst(init, NewConst(constant.MakeBool(true), tBool)), nil) - - // Call the init() function of each package we import. - for _, pkg := range p.Pkg.Imports() { - prereq := p.Prog.packages[pkg] - if prereq == nil { - panic(fmt.Sprintf("Package(%q).Build(): unsatisfied import: Program.CreatePackage(%q) was not called", p.Pkg.Path(), pkg.Path())) - } - var v Call - v.Call.Value = prereq.init - v.setType(types.NewTuple()) - init.emit(&v, nil) - } - - b := builder{ - printFunc: p.printFunc, - } - - // Initialize package-level vars in correct order. - for _, varinit := range p.info.InitOrder { - if init.Prog.mode&LogSource != 0 { - fmt.Fprintf(os.Stderr, "build global initializer %v @ %s\n", - varinit.Lhs, p.Prog.Fset.Position(varinit.Rhs.Pos())) - } - if len(varinit.Lhs) == 1 { - // 1:1 initialization: var x, y = a(), b() - var lval lvalue - if v := varinit.Lhs[0]; v.Name() != "_" { - lval = &address{addr: p.values[v].(*Global)} - } else { - lval = blank{} - } - // TODO(dh): do emit position information - b.assign(init, lval, varinit.Rhs, true, nil, nil) - } else { - // n:1 initialization: var x, y := f() - tuple := b.exprN(init, varinit.Rhs) - for i, v := range varinit.Lhs { - if v.Name() == "_" { - continue - } - emitStore(init, p.values[v].(*Global), emitExtract(init, tuple, i, nil), nil) - } - } - } - - // Build all package-level functions, init functions - // and methods, including unreachable/blank ones. - // We build them in source order, but it's not significant. - for _, file := range p.files { - for _, decl := range file.Decls { - if decl, ok := decl.(*ast.FuncDecl); ok { - b.buildFuncDecl(p, decl) - } - } - } - - // Finish up init(). - emitJump(init, done, nil) - init.finishBody() - - p.info = nil // We no longer need ASTs or go/types deductions. - - if p.Prog.mode&SanityCheckFunctions != 0 { - sanityCheckPackage(p) - } -} - -// Like ObjectOf, but panics instead of returning nil. -// Only valid during p's create and build phases. -func (p *Package) objectOf(id *ast.Ident) types.Object { - if o := p.info.ObjectOf(id); o != nil { - return o - } - panic(fmt.Sprintf("no types.Object for ast.Ident %s @ %s", - id.Name, p.Prog.Fset.Position(id.Pos()))) -} - -// Like TypeOf, but panics instead of returning nil. -// Only valid during p's create and build phases. -func (p *Package) typeOf(e ast.Expr) types.Type { - if T := p.info.TypeOf(e); T != nil { - return T - } - panic(fmt.Sprintf("no type for %T @ %s", - e, p.Prog.Fset.Position(e.Pos()))) -} diff --git a/vendor/honnef.co/go/tools/ir/const.go b/vendor/honnef.co/go/tools/ir/const.go deleted file mode 100644 index 7cdf006e8..000000000 --- a/vendor/honnef.co/go/tools/ir/const.go +++ /dev/null @@ -1,153 +0,0 @@ -// Copyright 2013 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package ir - -// This file defines the Const SSA value type. - -import ( - "fmt" - "go/constant" - "go/types" - "strconv" -) - -// NewConst returns a new constant of the specified value and type. -// val must be valid according to the specification of Const.Value. -// -func NewConst(val constant.Value, typ types.Type) *Const { - return &Const{ - register: register{ - typ: typ, - }, - Value: val, - } -} - -// intConst returns an 'int' constant that evaluates to i. -// (i is an int64 in case the host is narrower than the target.) -func intConst(i int64) *Const { - return NewConst(constant.MakeInt64(i), tInt) -} - -// nilConst returns a nil constant of the specified type, which may -// be any reference type, including interfaces. -// -func nilConst(typ types.Type) *Const { - return NewConst(nil, typ) -} - -// stringConst returns a 'string' constant that evaluates to s. -func stringConst(s string) *Const { - return NewConst(constant.MakeString(s), tString) -} - -// zeroConst returns a new "zero" constant of the specified type, -// which must not be an array or struct type: the zero values of -// aggregates are well-defined but cannot be represented by Const. -// -func zeroConst(t types.Type) *Const { - switch t := t.(type) { - case *types.Basic: - switch { - case t.Info()&types.IsBoolean != 0: - return NewConst(constant.MakeBool(false), t) - case t.Info()&types.IsNumeric != 0: - return NewConst(constant.MakeInt64(0), t) - case t.Info()&types.IsString != 0: - return NewConst(constant.MakeString(""), t) - case t.Kind() == types.UnsafePointer: - fallthrough - case t.Kind() == types.UntypedNil: - return nilConst(t) - default: - panic(fmt.Sprint("zeroConst for unexpected type:", t)) - } - case *types.Pointer, *types.Slice, *types.Interface, *types.Chan, *types.Map, *types.Signature: - return nilConst(t) - case *types.Named: - return NewConst(zeroConst(t.Underlying()).Value, t) - case *types.Array, *types.Struct, *types.Tuple: - panic(fmt.Sprint("zeroConst applied to aggregate:", t)) - } - panic(fmt.Sprint("zeroConst: unexpected ", t)) -} - -func (c *Const) RelString(from *types.Package) string { - var p string - if c.Value == nil { - p = "nil" - } else if c.Value.Kind() == constant.String { - v := constant.StringVal(c.Value) - const max = 20 - // TODO(adonovan): don't cut a rune in half. - if len(v) > max { - v = v[:max-3] + "..." // abbreviate - } - p = strconv.Quote(v) - } else { - p = c.Value.String() - } - return fmt.Sprintf("Const <%s> {%s}", relType(c.Type(), from), p) -} - -func (c *Const) String() string { - return c.RelString(c.Parent().pkg()) -} - -// IsNil returns true if this constant represents a typed or untyped nil value. -func (c *Const) IsNil() bool { - return c.Value == nil -} - -// Int64 returns the numeric value of this constant truncated to fit -// a signed 64-bit integer. -// -func (c *Const) Int64() int64 { - switch x := constant.ToInt(c.Value); x.Kind() { - case constant.Int: - if i, ok := constant.Int64Val(x); ok { - return i - } - return 0 - case constant.Float: - f, _ := constant.Float64Val(x) - return int64(f) - } - panic(fmt.Sprintf("unexpected constant value: %T", c.Value)) -} - -// Uint64 returns the numeric value of this constant truncated to fit -// an unsigned 64-bit integer. -// -func (c *Const) Uint64() uint64 { - switch x := constant.ToInt(c.Value); x.Kind() { - case constant.Int: - if u, ok := constant.Uint64Val(x); ok { - return u - } - return 0 - case constant.Float: - f, _ := constant.Float64Val(x) - return uint64(f) - } - panic(fmt.Sprintf("unexpected constant value: %T", c.Value)) -} - -// Float64 returns the numeric value of this constant truncated to fit -// a float64. -// -func (c *Const) Float64() float64 { - f, _ := constant.Float64Val(c.Value) - return f -} - -// Complex128 returns the complex value of this constant truncated to -// fit a complex128. -// -func (c *Const) Complex128() complex128 { - re, _ := constant.Float64Val(constant.Real(c.Value)) - im, _ := constant.Float64Val(constant.Imag(c.Value)) - return complex(re, im) -} diff --git a/vendor/honnef.co/go/tools/ir/create.go b/vendor/honnef.co/go/tools/ir/create.go deleted file mode 100644 index 34d0314e7..000000000 --- a/vendor/honnef.co/go/tools/ir/create.go +++ /dev/null @@ -1,271 +0,0 @@ -// Copyright 2013 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package ir - -// This file implements the CREATE phase of IR construction. -// See builder.go for explanation. - -import ( - "fmt" - "go/ast" - "go/token" - "go/types" - "os" - "sync" - - "golang.org/x/tools/go/types/typeutil" -) - -// NewProgram returns a new IR Program. -// -// mode controls diagnostics and checking during IR construction. -// -func NewProgram(fset *token.FileSet, mode BuilderMode) *Program { - prog := &Program{ - Fset: fset, - imported: make(map[string]*Package), - packages: make(map[*types.Package]*Package), - thunks: make(map[selectionKey]*Function), - bounds: make(map[*types.Func]*Function), - mode: mode, - } - - h := typeutil.MakeHasher() // protected by methodsMu, in effect - prog.methodSets.SetHasher(h) - prog.canon.SetHasher(h) - - return prog -} - -// memberFromObject populates package pkg with a member for the -// typechecker object obj. -// -// For objects from Go source code, syntax is the associated syntax -// tree (for funcs and vars only); it will be used during the build -// phase. -// -func memberFromObject(pkg *Package, obj types.Object, syntax ast.Node) { - name := obj.Name() - switch obj := obj.(type) { - case *types.Builtin: - if pkg.Pkg != types.Unsafe { - panic("unexpected builtin object: " + obj.String()) - } - - case *types.TypeName: - pkg.Members[name] = &Type{ - object: obj, - pkg: pkg, - } - - case *types.Const: - c := &NamedConst{ - object: obj, - Value: NewConst(obj.Val(), obj.Type()), - pkg: pkg, - } - pkg.values[obj] = c.Value - pkg.Members[name] = c - - case *types.Var: - g := &Global{ - Pkg: pkg, - name: name, - object: obj, - typ: types.NewPointer(obj.Type()), // address - } - pkg.values[obj] = g - pkg.Members[name] = g - - case *types.Func: - sig := obj.Type().(*types.Signature) - if sig.Recv() == nil && name == "init" { - pkg.ninit++ - name = fmt.Sprintf("init#%d", pkg.ninit) - } - fn := &Function{ - name: name, - object: obj, - Signature: sig, - Pkg: pkg, - Prog: pkg.Prog, - } - fn.source = syntax - fn.initHTML(pkg.printFunc) - if syntax == nil { - fn.Synthetic = "loaded from gc object file" - } - - pkg.values[obj] = fn - pkg.Functions = append(pkg.Functions, fn) - if sig.Recv() == nil { - pkg.Members[name] = fn // package-level function - } - - default: // (incl. *types.Package) - panic("unexpected Object type: " + obj.String()) - } -} - -// membersFromDecl populates package pkg with members for each -// typechecker object (var, func, const or type) associated with the -// specified decl. -// -func membersFromDecl(pkg *Package, decl ast.Decl) { - switch decl := decl.(type) { - case *ast.GenDecl: // import, const, type or var - switch decl.Tok { - case token.CONST: - for _, spec := range decl.Specs { - for _, id := range spec.(*ast.ValueSpec).Names { - if !isBlankIdent(id) { - memberFromObject(pkg, pkg.info.Defs[id], nil) - } - } - } - - case token.VAR: - for _, spec := range decl.Specs { - for _, id := range spec.(*ast.ValueSpec).Names { - if !isBlankIdent(id) { - memberFromObject(pkg, pkg.info.Defs[id], spec) - } - } - } - - case token.TYPE: - for _, spec := range decl.Specs { - id := spec.(*ast.TypeSpec).Name - if !isBlankIdent(id) { - memberFromObject(pkg, pkg.info.Defs[id], nil) - } - } - } - - case *ast.FuncDecl: - id := decl.Name - if !isBlankIdent(id) { - memberFromObject(pkg, pkg.info.Defs[id], decl) - } - } -} - -// CreatePackage constructs and returns an IR Package from the -// specified type-checked, error-free file ASTs, and populates its -// Members mapping. -// -// importable determines whether this package should be returned by a -// subsequent call to ImportedPackage(pkg.Path()). -// -// The real work of building IR form for each function is not done -// until a subsequent call to Package.Build(). -// -func (prog *Program) CreatePackage(pkg *types.Package, files []*ast.File, info *types.Info, importable bool) *Package { - p := &Package{ - Prog: prog, - Members: make(map[string]Member), - values: make(map[types.Object]Value), - Pkg: pkg, - info: info, // transient (CREATE and BUILD phases) - files: files, // transient (CREATE and BUILD phases) - printFunc: prog.PrintFunc, - } - - // Add init() function. - p.init = &Function{ - name: "init", - Signature: new(types.Signature), - Synthetic: "package initializer", - Pkg: p, - Prog: prog, - } - p.init.initHTML(prog.PrintFunc) - p.Members[p.init.name] = p.init - p.Functions = append(p.Functions, p.init) - - // CREATE phase. - // Allocate all package members: vars, funcs, consts and types. - if len(files) > 0 { - // Go source package. - for _, file := range files { - for _, decl := range file.Decls { - membersFromDecl(p, decl) - } - } - } else { - // GC-compiled binary package (or "unsafe") - // No code. - // No position information. - scope := p.Pkg.Scope() - for _, name := range scope.Names() { - obj := scope.Lookup(name) - memberFromObject(p, obj, nil) - if obj, ok := obj.(*types.TypeName); ok { - if named, ok := obj.Type().(*types.Named); ok { - for i, n := 0, named.NumMethods(); i < n; i++ { - memberFromObject(p, named.Method(i), nil) - } - } - } - } - } - - // Add initializer guard variable. - initguard := &Global{ - Pkg: p, - name: "init$guard", - typ: types.NewPointer(tBool), - } - p.Members[initguard.Name()] = initguard - - if prog.mode&GlobalDebug != 0 { - p.SetDebugMode(true) - } - - if prog.mode&PrintPackages != 0 { - printMu.Lock() - p.WriteTo(os.Stdout) - printMu.Unlock() - } - - if importable { - prog.imported[p.Pkg.Path()] = p - } - prog.packages[p.Pkg] = p - - return p -} - -// printMu serializes printing of Packages/Functions to stdout. -var printMu sync.Mutex - -// AllPackages returns a new slice containing all packages in the -// program prog in unspecified order. -// -func (prog *Program) AllPackages() []*Package { - pkgs := make([]*Package, 0, len(prog.packages)) - for _, pkg := range prog.packages { - pkgs = append(pkgs, pkg) - } - return pkgs -} - -// ImportedPackage returns the importable Package whose PkgPath -// is path, or nil if no such Package has been created. -// -// A parameter to CreatePackage determines whether a package should be -// considered importable. For example, no import declaration can resolve -// to the ad-hoc main package created by 'go build foo.go'. -// -// TODO(adonovan): rethink this function and the "importable" concept; -// most packages are importable. This function assumes that all -// types.Package.Path values are unique within the ir.Program, which is -// false---yet this function remains very convenient. -// Clients should use (*Program).Package instead where possible. -// IR doesn't really need a string-keyed map of packages. -// -func (prog *Program) ImportedPackage(path string) *Package { - return prog.imported[path] -} diff --git a/vendor/honnef.co/go/tools/ir/doc.go b/vendor/honnef.co/go/tools/ir/doc.go deleted file mode 100644 index 87c54c55e..000000000 --- a/vendor/honnef.co/go/tools/ir/doc.go +++ /dev/null @@ -1,129 +0,0 @@ -// Copyright 2013 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -// Package ir defines a representation of the elements of Go programs -// (packages, types, functions, variables and constants) using a -// static single-information (SSI) form intermediate representation -// (IR) for the bodies of functions. -// -// THIS INTERFACE IS EXPERIMENTAL AND IS LIKELY TO CHANGE. -// -// For an introduction to SSA form, upon which SSI builds, see -// http://en.wikipedia.org/wiki/Static_single_assignment_form. -// This page provides a broader reading list: -// http://www.dcs.gla.ac.uk/~jsinger/ssa.html. -// -// For an introduction to SSI form, see The static single information -// form by C. Scott Ananian. -// -// The level of abstraction of the IR form is intentionally close to -// the source language to facilitate construction of source analysis -// tools. It is not intended for machine code generation. -// -// The simplest way to create the IR of a package is -// to load typed syntax trees using golang.org/x/tools/go/packages, then -// invoke the irutil.Packages helper function. See ExampleLoadPackages -// and ExampleWholeProgram for examples. -// The resulting ir.Program contains all the packages and their -// members, but IR code is not created for function bodies until a -// subsequent call to (*Package).Build or (*Program).Build. -// -// The builder initially builds a naive IR form in which all local -// variables are addresses of stack locations with explicit loads and -// stores. Registerisation of eligible locals and φ-node insertion -// using dominance and dataflow are then performed as a second pass -// called "lifting" to improve the accuracy and performance of -// subsequent analyses; this pass can be skipped by setting the -// NaiveForm builder flag. -// -// The primary interfaces of this package are: -// -// - Member: a named member of a Go package. -// - Value: an expression that yields a value. -// - Instruction: a statement that consumes values and performs computation. -// - Node: a Value or Instruction (emphasizing its membership in the IR value graph) -// -// A computation that yields a result implements both the Value and -// Instruction interfaces. The following table shows for each -// concrete type which of these interfaces it implements. -// -// Value? Instruction? Member? -// *Alloc ✔ ✔ -// *BinOp ✔ ✔ -// *BlankStore ✔ -// *Builtin ✔ -// *Call ✔ ✔ -// *ChangeInterface ✔ ✔ -// *ChangeType ✔ ✔ -// *Const ✔ ✔ -// *Convert ✔ ✔ -// *DebugRef ✔ -// *Defer ✔ ✔ -// *Extract ✔ ✔ -// *Field ✔ ✔ -// *FieldAddr ✔ ✔ -// *FreeVar ✔ -// *Function ✔ ✔ (func) -// *Global ✔ ✔ (var) -// *Go ✔ ✔ -// *If ✔ -// *Index ✔ ✔ -// *IndexAddr ✔ ✔ -// *Jump ✔ -// *Load ✔ ✔ -// *MakeChan ✔ ✔ -// *MakeClosure ✔ ✔ -// *MakeInterface ✔ ✔ -// *MakeMap ✔ ✔ -// *MakeSlice ✔ ✔ -// *MapLookup ✔ ✔ -// *MapUpdate ✔ ✔ -// *NamedConst ✔ (const) -// *Next ✔ ✔ -// *Panic ✔ -// *Parameter ✔ ✔ -// *Phi ✔ ✔ -// *Range ✔ ✔ -// *Recv ✔ ✔ -// *Return ✔ -// *RunDefers ✔ -// *Select ✔ ✔ -// *Send ✔ ✔ -// *Sigma ✔ ✔ -// *Slice ✔ ✔ -// *Store ✔ ✔ -// *StringLookup ✔ ✔ -// *Type ✔ (type) -// *TypeAssert ✔ ✔ -// *UnOp ✔ ✔ -// *Unreachable ✔ -// -// Other key types in this package include: Program, Package, Function -// and BasicBlock. -// -// The program representation constructed by this package is fully -// resolved internally, i.e. it does not rely on the names of Values, -// Packages, Functions, Types or BasicBlocks for the correct -// interpretation of the program. Only the identities of objects and -// the topology of the IR and type graphs are semantically -// significant. (There is one exception: Ids, used to identify field -// and method names, contain strings.) Avoidance of name-based -// operations simplifies the implementation of subsequent passes and -// can make them very efficient. Many objects are nonetheless named -// to aid in debugging, but it is not essential that the names be -// either accurate or unambiguous. The public API exposes a number of -// name-based maps for client convenience. -// -// The ir/irutil package provides various utilities that depend only -// on the public API of this package. -// -// TODO(adonovan): Consider the exceptional control-flow implications -// of defer and recover(). -// -// TODO(adonovan): write a how-to document for all the various cases -// of trying to determine corresponding elements across the four -// domains of source locations, ast.Nodes, types.Objects, -// ir.Values/Instructions. -// -package ir diff --git a/vendor/honnef.co/go/tools/ir/dom.go b/vendor/honnef.co/go/tools/ir/dom.go deleted file mode 100644 index 08c147df9..000000000 --- a/vendor/honnef.co/go/tools/ir/dom.go +++ /dev/null @@ -1,461 +0,0 @@ -// Copyright 2013 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package ir - -// This file defines algorithms related to dominance. - -// Dominator tree construction ---------------------------------------- -// -// We use the algorithm described in Lengauer & Tarjan. 1979. A fast -// algorithm for finding dominators in a flowgraph. -// http://doi.acm.org/10.1145/357062.357071 -// -// We also apply the optimizations to SLT described in Georgiadis et -// al, Finding Dominators in Practice, JGAA 2006, -// http://jgaa.info/accepted/2006/GeorgiadisTarjanWerneck2006.10.1.pdf -// to avoid the need for buckets of size > 1. - -import ( - "bytes" - "fmt" - "io" - "math/big" - "os" - "sort" -) - -// Idom returns the block that immediately dominates b: -// its parent in the dominator tree, if any. -// The entry node (b.Index==0) does not have a parent. -// -func (b *BasicBlock) Idom() *BasicBlock { return b.dom.idom } - -// Dominees returns the list of blocks that b immediately dominates: -// its children in the dominator tree. -// -func (b *BasicBlock) Dominees() []*BasicBlock { return b.dom.children } - -// Dominates reports whether b dominates c. -func (b *BasicBlock) Dominates(c *BasicBlock) bool { - return b.dom.pre <= c.dom.pre && c.dom.post <= b.dom.post -} - -type byDomPreorder []*BasicBlock - -func (a byDomPreorder) Len() int { return len(a) } -func (a byDomPreorder) Swap(i, j int) { a[i], a[j] = a[j], a[i] } -func (a byDomPreorder) Less(i, j int) bool { return a[i].dom.pre < a[j].dom.pre } - -// DomPreorder returns a new slice containing the blocks of f in -// dominator tree preorder. -// -func (f *Function) DomPreorder() []*BasicBlock { - n := len(f.Blocks) - order := make(byDomPreorder, n) - copy(order, f.Blocks) - sort.Sort(order) - return order -} - -// domInfo contains a BasicBlock's dominance information. -type domInfo struct { - idom *BasicBlock // immediate dominator (parent in domtree) - children []*BasicBlock // nodes immediately dominated by this one - pre, post int32 // pre- and post-order numbering within domtree -} - -// buildDomTree computes the dominator tree of f using the LT algorithm. -// Precondition: all blocks are reachable (e.g. optimizeBlocks has been run). -// -func buildDomTree(fn *Function) { - // The step numbers refer to the original LT paper; the - // reordering is due to Georgiadis. - - // Clear any previous domInfo. - for _, b := range fn.Blocks { - b.dom = domInfo{} - } - - idoms := make([]*BasicBlock, len(fn.Blocks)) - - order := make([]*BasicBlock, 0, len(fn.Blocks)) - seen := fn.blockset(0) - var dfs func(b *BasicBlock) - dfs = func(b *BasicBlock) { - if !seen.Add(b) { - return - } - for _, succ := range b.Succs { - dfs(succ) - } - if fn.fakeExits.Has(b) { - dfs(fn.Exit) - } - order = append(order, b) - b.post = len(order) - 1 - } - dfs(fn.Blocks[0]) - - for i := 0; i < len(order)/2; i++ { - o := len(order) - i - 1 - order[i], order[o] = order[o], order[i] - } - - idoms[fn.Blocks[0].Index] = fn.Blocks[0] - changed := true - for changed { - changed = false - // iterate over all nodes in reverse postorder, except for the - // entry node - for _, b := range order[1:] { - var newIdom *BasicBlock - do := func(p *BasicBlock) { - if idoms[p.Index] == nil { - return - } - if newIdom == nil { - newIdom = p - } else { - finger1 := p - finger2 := newIdom - for finger1 != finger2 { - for finger1.post < finger2.post { - finger1 = idoms[finger1.Index] - } - for finger2.post < finger1.post { - finger2 = idoms[finger2.Index] - } - } - newIdom = finger1 - } - } - for _, p := range b.Preds { - do(p) - } - if b == fn.Exit { - for _, p := range fn.Blocks { - if fn.fakeExits.Has(p) { - do(p) - } - } - } - - if idoms[b.Index] != newIdom { - idoms[b.Index] = newIdom - changed = true - } - } - } - - for i, b := range idoms { - fn.Blocks[i].dom.idom = b - if b == nil { - // malformed CFG - continue - } - if i == b.Index { - continue - } - b.dom.children = append(b.dom.children, fn.Blocks[i]) - } - - numberDomTree(fn.Blocks[0], 0, 0) - - // printDomTreeDot(os.Stderr, fn) // debugging - // printDomTreeText(os.Stderr, root, 0) // debugging - - if fn.Prog.mode&SanityCheckFunctions != 0 { - sanityCheckDomTree(fn) - } -} - -// buildPostDomTree is like buildDomTree, but builds the post-dominator tree instead. -func buildPostDomTree(fn *Function) { - // The step numbers refer to the original LT paper; the - // reordering is due to Georgiadis. - - // Clear any previous domInfo. - for _, b := range fn.Blocks { - b.pdom = domInfo{} - } - - idoms := make([]*BasicBlock, len(fn.Blocks)) - - order := make([]*BasicBlock, 0, len(fn.Blocks)) - seen := fn.blockset(0) - var dfs func(b *BasicBlock) - dfs = func(b *BasicBlock) { - if !seen.Add(b) { - return - } - for _, pred := range b.Preds { - dfs(pred) - } - if b == fn.Exit { - for _, p := range fn.Blocks { - if fn.fakeExits.Has(p) { - dfs(p) - } - } - } - order = append(order, b) - b.post = len(order) - 1 - } - dfs(fn.Exit) - - for i := 0; i < len(order)/2; i++ { - o := len(order) - i - 1 - order[i], order[o] = order[o], order[i] - } - - idoms[fn.Exit.Index] = fn.Exit - changed := true - for changed { - changed = false - // iterate over all nodes in reverse postorder, except for the - // exit node - for _, b := range order[1:] { - var newIdom *BasicBlock - do := func(p *BasicBlock) { - if idoms[p.Index] == nil { - return - } - if newIdom == nil { - newIdom = p - } else { - finger1 := p - finger2 := newIdom - for finger1 != finger2 { - for finger1.post < finger2.post { - finger1 = idoms[finger1.Index] - } - for finger2.post < finger1.post { - finger2 = idoms[finger2.Index] - } - } - newIdom = finger1 - } - } - for _, p := range b.Succs { - do(p) - } - if fn.fakeExits.Has(b) { - do(fn.Exit) - } - - if idoms[b.Index] != newIdom { - idoms[b.Index] = newIdom - changed = true - } - } - } - - for i, b := range idoms { - fn.Blocks[i].pdom.idom = b - if b == nil { - // malformed CFG - continue - } - if i == b.Index { - continue - } - b.pdom.children = append(b.pdom.children, fn.Blocks[i]) - } - - numberPostDomTree(fn.Exit, 0, 0) - - // printPostDomTreeDot(os.Stderr, fn) // debugging - // printPostDomTreeText(os.Stderr, fn.Exit, 0) // debugging - - if fn.Prog.mode&SanityCheckFunctions != 0 { // XXX - sanityCheckDomTree(fn) // XXX - } -} - -// numberDomTree sets the pre- and post-order numbers of a depth-first -// traversal of the dominator tree rooted at v. These are used to -// answer dominance queries in constant time. -// -func numberDomTree(v *BasicBlock, pre, post int32) (int32, int32) { - v.dom.pre = pre - pre++ - for _, child := range v.dom.children { - pre, post = numberDomTree(child, pre, post) - } - v.dom.post = post - post++ - return pre, post -} - -// numberPostDomTree sets the pre- and post-order numbers of a depth-first -// traversal of the post-dominator tree rooted at v. These are used to -// answer post-dominance queries in constant time. -// -func numberPostDomTree(v *BasicBlock, pre, post int32) (int32, int32) { - v.pdom.pre = pre - pre++ - for _, child := range v.pdom.children { - pre, post = numberPostDomTree(child, pre, post) - } - v.pdom.post = post - post++ - return pre, post -} - -// Testing utilities ---------------------------------------- - -// sanityCheckDomTree checks the correctness of the dominator tree -// computed by the LT algorithm by comparing against the dominance -// relation computed by a naive Kildall-style forward dataflow -// analysis (Algorithm 10.16 from the "Dragon" book). -// -func sanityCheckDomTree(f *Function) { - n := len(f.Blocks) - - // D[i] is the set of blocks that dominate f.Blocks[i], - // represented as a bit-set of block indices. - D := make([]big.Int, n) - - one := big.NewInt(1) - - // all is the set of all blocks; constant. - var all big.Int - all.Set(one).Lsh(&all, uint(n)).Sub(&all, one) - - // Initialization. - for i := range f.Blocks { - if i == 0 { - // A root is dominated only by itself. - D[i].SetBit(&D[0], 0, 1) - } else { - // All other blocks are (initially) dominated - // by every block. - D[i].Set(&all) - } - } - - // Iteration until fixed point. - for changed := true; changed; { - changed = false - for i, b := range f.Blocks { - if i == 0 { - continue - } - // Compute intersection across predecessors. - var x big.Int - x.Set(&all) - for _, pred := range b.Preds { - x.And(&x, &D[pred.Index]) - } - if b == f.Exit { - for _, p := range f.Blocks { - if f.fakeExits.Has(p) { - x.And(&x, &D[p.Index]) - } - } - } - x.SetBit(&x, i, 1) // a block always dominates itself. - if D[i].Cmp(&x) != 0 { - D[i].Set(&x) - changed = true - } - } - } - - // Check the entire relation. O(n^2). - ok := true - for i := 0; i < n; i++ { - for j := 0; j < n; j++ { - b, c := f.Blocks[i], f.Blocks[j] - actual := b.Dominates(c) - expected := D[j].Bit(i) == 1 - if actual != expected { - fmt.Fprintf(os.Stderr, "dominates(%s, %s)==%t, want %t\n", b, c, actual, expected) - ok = false - } - } - } - - preorder := f.DomPreorder() - for _, b := range f.Blocks { - if got := preorder[b.dom.pre]; got != b { - fmt.Fprintf(os.Stderr, "preorder[%d]==%s, want %s\n", b.dom.pre, got, b) - ok = false - } - } - - if !ok { - panic("sanityCheckDomTree failed for " + f.String()) - } - -} - -// Printing functions ---------------------------------------- - -// printDomTree prints the dominator tree as text, using indentation. -//lint:ignore U1000 used during debugging -func printDomTreeText(buf *bytes.Buffer, v *BasicBlock, indent int) { - fmt.Fprintf(buf, "%*s%s\n", 4*indent, "", v) - for _, child := range v.dom.children { - printDomTreeText(buf, child, indent+1) - } -} - -// printDomTreeDot prints the dominator tree of f in AT&T GraphViz -// (.dot) format. -//lint:ignore U1000 used during debugging -func printDomTreeDot(buf io.Writer, f *Function) { - fmt.Fprintln(buf, "//", f) - fmt.Fprintln(buf, "digraph domtree {") - for i, b := range f.Blocks { - v := b.dom - fmt.Fprintf(buf, "\tn%d [label=\"%s (%d, %d)\",shape=\"rectangle\"];\n", v.pre, b, v.pre, v.post) - // TODO(adonovan): improve appearance of edges - // belonging to both dominator tree and CFG. - - // Dominator tree edge. - if i != 0 { - fmt.Fprintf(buf, "\tn%d -> n%d [style=\"solid\",weight=100];\n", v.idom.dom.pre, v.pre) - } - // CFG edges. - for _, pred := range b.Preds { - fmt.Fprintf(buf, "\tn%d -> n%d [style=\"dotted\",weight=0];\n", pred.dom.pre, v.pre) - } - } - fmt.Fprintln(buf, "}") -} - -// printDomTree prints the dominator tree as text, using indentation. -//lint:ignore U1000 used during debugging -func printPostDomTreeText(buf io.Writer, v *BasicBlock, indent int) { - fmt.Fprintf(buf, "%*s%s\n", 4*indent, "", v) - for _, child := range v.pdom.children { - printPostDomTreeText(buf, child, indent+1) - } -} - -// printDomTreeDot prints the dominator tree of f in AT&T GraphViz -// (.dot) format. -//lint:ignore U1000 used during debugging -func printPostDomTreeDot(buf io.Writer, f *Function) { - fmt.Fprintln(buf, "//", f) - fmt.Fprintln(buf, "digraph pdomtree {") - for _, b := range f.Blocks { - v := b.pdom - fmt.Fprintf(buf, "\tn%d [label=\"%s (%d, %d)\",shape=\"rectangle\"];\n", v.pre, b, v.pre, v.post) - // TODO(adonovan): improve appearance of edges - // belonging to both dominator tree and CFG. - - // Dominator tree edge. - if b != f.Exit { - fmt.Fprintf(buf, "\tn%d -> n%d [style=\"solid\",weight=100];\n", v.idom.pdom.pre, v.pre) - } - // CFG edges. - for _, pred := range b.Preds { - fmt.Fprintf(buf, "\tn%d -> n%d [style=\"dotted\",weight=0];\n", pred.pdom.pre, v.pre) - } - } - fmt.Fprintln(buf, "}") -} diff --git a/vendor/honnef.co/go/tools/ir/emit.go b/vendor/honnef.co/go/tools/ir/emit.go deleted file mode 100644 index 5fa137af9..000000000 --- a/vendor/honnef.co/go/tools/ir/emit.go +++ /dev/null @@ -1,450 +0,0 @@ -// Copyright 2013 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package ir - -// Helpers for emitting IR instructions. - -import ( - "fmt" - "go/ast" - "go/constant" - "go/token" - "go/types" -) - -// emitNew emits to f a new (heap Alloc) instruction allocating an -// object of type typ. pos is the optional source location. -// -func emitNew(f *Function, typ types.Type, source ast.Node) *Alloc { - v := &Alloc{Heap: true} - v.setType(types.NewPointer(typ)) - f.emit(v, source) - return v -} - -// emitLoad emits to f an instruction to load the address addr into a -// new temporary, and returns the value so defined. -// -func emitLoad(f *Function, addr Value, source ast.Node) *Load { - v := &Load{X: addr} - v.setType(deref(addr.Type())) - f.emit(v, source) - return v -} - -func emitRecv(f *Function, ch Value, commaOk bool, typ types.Type, source ast.Node) Value { - recv := &Recv{ - Chan: ch, - CommaOk: commaOk, - } - recv.setType(typ) - return f.emit(recv, source) -} - -// emitDebugRef emits to f a DebugRef pseudo-instruction associating -// expression e with value v. -// -func emitDebugRef(f *Function, e ast.Expr, v Value, isAddr bool) { - if !f.debugInfo() { - return // debugging not enabled - } - if v == nil || e == nil { - panic("nil") - } - var obj types.Object - e = unparen(e) - if id, ok := e.(*ast.Ident); ok { - if isBlankIdent(id) { - return - } - obj = f.Pkg.objectOf(id) - switch obj.(type) { - case *types.Nil, *types.Const, *types.Builtin: - return - } - } - f.emit(&DebugRef{ - X: v, - Expr: e, - IsAddr: isAddr, - object: obj, - }, nil) -} - -// emitArith emits to f code to compute the binary operation op(x, y) -// where op is an eager shift, logical or arithmetic operation. -// (Use emitCompare() for comparisons and Builder.logicalBinop() for -// non-eager operations.) -// -func emitArith(f *Function, op token.Token, x, y Value, t types.Type, source ast.Node) Value { - switch op { - case token.SHL, token.SHR: - x = emitConv(f, x, t, source) - // y may be signed or an 'untyped' constant. - // TODO(adonovan): whence signed values? - if b, ok := y.Type().Underlying().(*types.Basic); ok && b.Info()&types.IsUnsigned == 0 { - y = emitConv(f, y, types.Typ[types.Uint64], source) - } - - case token.ADD, token.SUB, token.MUL, token.QUO, token.REM, token.AND, token.OR, token.XOR, token.AND_NOT: - x = emitConv(f, x, t, source) - y = emitConv(f, y, t, source) - - default: - panic("illegal op in emitArith: " + op.String()) - - } - v := &BinOp{ - Op: op, - X: x, - Y: y, - } - v.setType(t) - return f.emit(v, source) -} - -// emitCompare emits to f code compute the boolean result of -// comparison comparison 'x op y'. -// -func emitCompare(f *Function, op token.Token, x, y Value, source ast.Node) Value { - xt := x.Type().Underlying() - yt := y.Type().Underlying() - - // Special case to optimise a tagless SwitchStmt so that - // these are equivalent - // switch { case e: ...} - // switch true { case e: ... } - // if e==true { ... } - // even in the case when e's type is an interface. - // TODO(adonovan): opt: generalise to x==true, false!=y, etc. - if x, ok := x.(*Const); ok && op == token.EQL && x.Value != nil && x.Value.Kind() == constant.Bool && constant.BoolVal(x.Value) { - if yt, ok := yt.(*types.Basic); ok && yt.Info()&types.IsBoolean != 0 { - return y - } - } - - if types.Identical(xt, yt) { - // no conversion necessary - } else if _, ok := xt.(*types.Interface); ok { - y = emitConv(f, y, x.Type(), source) - } else if _, ok := yt.(*types.Interface); ok { - x = emitConv(f, x, y.Type(), source) - } else if _, ok := x.(*Const); ok { - x = emitConv(f, x, y.Type(), source) - } else if _, ok := y.(*Const); ok { - y = emitConv(f, y, x.Type(), source) - //lint:ignore SA9003 no-op - } else { - // other cases, e.g. channels. No-op. - } - - v := &BinOp{ - Op: op, - X: x, - Y: y, - } - v.setType(tBool) - return f.emit(v, source) -} - -// isValuePreserving returns true if a conversion from ut_src to -// ut_dst is value-preserving, i.e. just a change of type. -// Precondition: neither argument is a named type. -// -func isValuePreserving(ut_src, ut_dst types.Type) bool { - // Identical underlying types? - if structTypesIdentical(ut_dst, ut_src) { - return true - } - - switch ut_dst.(type) { - case *types.Chan: - // Conversion between channel types? - _, ok := ut_src.(*types.Chan) - return ok - - case *types.Pointer: - // Conversion between pointers with identical base types? - _, ok := ut_src.(*types.Pointer) - return ok - } - return false -} - -// emitConv emits to f code to convert Value val to exactly type typ, -// and returns the converted value. Implicit conversions are required -// by language assignability rules in assignments, parameter passing, -// etc. Conversions cannot fail dynamically. -// -func emitConv(f *Function, val Value, typ types.Type, source ast.Node) Value { - t_src := val.Type() - - // Identical types? Conversion is a no-op. - if types.Identical(t_src, typ) { - return val - } - - ut_dst := typ.Underlying() - ut_src := t_src.Underlying() - - // Just a change of type, but not value or representation? - if isValuePreserving(ut_src, ut_dst) { - c := &ChangeType{X: val} - c.setType(typ) - return f.emit(c, source) - } - - // Conversion to, or construction of a value of, an interface type? - if _, ok := ut_dst.(*types.Interface); ok { - // Assignment from one interface type to another? - if _, ok := ut_src.(*types.Interface); ok { - c := &ChangeInterface{X: val} - c.setType(typ) - return f.emit(c, source) - } - - // Untyped nil constant? Return interface-typed nil constant. - if ut_src == tUntypedNil { - return emitConst(f, nilConst(typ)) - } - - // Convert (non-nil) "untyped" literals to their default type. - if t, ok := ut_src.(*types.Basic); ok && t.Info()&types.IsUntyped != 0 { - val = emitConv(f, val, types.Default(ut_src), source) - } - - f.Pkg.Prog.needMethodsOf(val.Type()) - mi := &MakeInterface{X: val} - mi.setType(typ) - return f.emit(mi, source) - } - - // Conversion of a compile-time constant value? - if c, ok := val.(*Const); ok { - if _, ok := ut_dst.(*types.Basic); ok || c.IsNil() { - // Conversion of a compile-time constant to - // another constant type results in a new - // constant of the destination type and - // (initially) the same abstract value. - // We don't truncate the value yet. - return emitConst(f, NewConst(c.Value, typ)) - } - - // We're converting from constant to non-constant type, - // e.g. string -> []byte/[]rune. - } - - // A representation-changing conversion? - // At least one of {ut_src,ut_dst} must be *Basic. - // (The other may be []byte or []rune.) - _, ok1 := ut_src.(*types.Basic) - _, ok2 := ut_dst.(*types.Basic) - if ok1 || ok2 { - c := &Convert{X: val} - c.setType(typ) - return f.emit(c, source) - } - - panic(fmt.Sprintf("in %s: cannot convert %s (%s) to %s", f, val, val.Type(), typ)) -} - -// emitStore emits to f an instruction to store value val at location -// addr, applying implicit conversions as required by assignability rules. -// -func emitStore(f *Function, addr, val Value, source ast.Node) *Store { - s := &Store{ - Addr: addr, - Val: emitConv(f, val, deref(addr.Type()), source), - } - // make sure we call getMem after the call to emitConv, which may - // itself update the memory state - f.emit(s, source) - return s -} - -// emitJump emits to f a jump to target, and updates the control-flow graph. -// Postcondition: f.currentBlock is nil. -// -func emitJump(f *Function, target *BasicBlock, source ast.Node) *Jump { - b := f.currentBlock - j := new(Jump) - b.emit(j, source) - addEdge(b, target) - f.currentBlock = nil - return j -} - -// emitIf emits to f a conditional jump to tblock or fblock based on -// cond, and updates the control-flow graph. -// Postcondition: f.currentBlock is nil. -// -func emitIf(f *Function, cond Value, tblock, fblock *BasicBlock, source ast.Node) *If { - b := f.currentBlock - stmt := &If{Cond: cond} - b.emit(stmt, source) - addEdge(b, tblock) - addEdge(b, fblock) - f.currentBlock = nil - return stmt -} - -// emitExtract emits to f an instruction to extract the index'th -// component of tuple. It returns the extracted value. -// -func emitExtract(f *Function, tuple Value, index int, source ast.Node) Value { - e := &Extract{Tuple: tuple, Index: index} - e.setType(tuple.Type().(*types.Tuple).At(index).Type()) - return f.emit(e, source) -} - -// emitTypeAssert emits to f a type assertion value := x.(t) and -// returns the value. x.Type() must be an interface. -// -func emitTypeAssert(f *Function, x Value, t types.Type, source ast.Node) Value { - a := &TypeAssert{X: x, AssertedType: t} - a.setType(t) - return f.emit(a, source) -} - -// emitTypeTest emits to f a type test value,ok := x.(t) and returns -// a (value, ok) tuple. x.Type() must be an interface. -// -func emitTypeTest(f *Function, x Value, t types.Type, source ast.Node) Value { - a := &TypeAssert{ - X: x, - AssertedType: t, - CommaOk: true, - } - a.setType(types.NewTuple( - newVar("value", t), - varOk, - )) - return f.emit(a, source) -} - -// emitTailCall emits to f a function call in tail position. The -// caller is responsible for all fields of 'call' except its type. -// Intended for wrapper methods. -// Precondition: f does/will not use deferred procedure calls. -// Postcondition: f.currentBlock is nil. -// -func emitTailCall(f *Function, call *Call, source ast.Node) { - tresults := f.Signature.Results() - nr := tresults.Len() - if nr == 1 { - call.typ = tresults.At(0).Type() - } else { - call.typ = tresults - } - tuple := f.emit(call, source) - var ret Return - switch nr { - case 0: - // no-op - case 1: - ret.Results = []Value{tuple} - default: - for i := 0; i < nr; i++ { - v := emitExtract(f, tuple, i, source) - // TODO(adonovan): in principle, this is required: - // v = emitConv(f, o.Type, f.Signature.Results[i].Type) - // but in practice emitTailCall is only used when - // the types exactly match. - ret.Results = append(ret.Results, v) - } - } - - f.Exit = f.newBasicBlock("exit") - emitJump(f, f.Exit, source) - f.currentBlock = f.Exit - f.emit(&ret, source) - f.currentBlock = nil -} - -// emitImplicitSelections emits to f code to apply the sequence of -// implicit field selections specified by indices to base value v, and -// returns the selected value. -// -// If v is the address of a struct, the result will be the address of -// a field; if it is the value of a struct, the result will be the -// value of a field. -// -func emitImplicitSelections(f *Function, v Value, indices []int, source ast.Node) Value { - for _, index := range indices { - fld := deref(v.Type()).Underlying().(*types.Struct).Field(index) - - if isPointer(v.Type()) { - instr := &FieldAddr{ - X: v, - Field: index, - } - instr.setType(types.NewPointer(fld.Type())) - v = f.emit(instr, source) - // Load the field's value iff indirectly embedded. - if isPointer(fld.Type()) { - v = emitLoad(f, v, source) - } - } else { - instr := &Field{ - X: v, - Field: index, - } - instr.setType(fld.Type()) - v = f.emit(instr, source) - } - } - return v -} - -// emitFieldSelection emits to f code to select the index'th field of v. -// -// If wantAddr, the input must be a pointer-to-struct and the result -// will be the field's address; otherwise the result will be the -// field's value. -// Ident id is used for position and debug info. -// -func emitFieldSelection(f *Function, v Value, index int, wantAddr bool, id *ast.Ident) Value { - fld := deref(v.Type()).Underlying().(*types.Struct).Field(index) - if isPointer(v.Type()) { - instr := &FieldAddr{ - X: v, - Field: index, - } - instr.setSource(id) - instr.setType(types.NewPointer(fld.Type())) - v = f.emit(instr, id) - // Load the field's value iff we don't want its address. - if !wantAddr { - v = emitLoad(f, v, id) - } - } else { - instr := &Field{ - X: v, - Field: index, - } - instr.setSource(id) - instr.setType(fld.Type()) - v = f.emit(instr, id) - } - emitDebugRef(f, id, v, wantAddr) - return v -} - -// zeroValue emits to f code to produce a zero value of type t, -// and returns it. -// -func zeroValue(f *Function, t types.Type, source ast.Node) Value { - switch t.Underlying().(type) { - case *types.Struct, *types.Array: - return emitLoad(f, f.addLocal(t, source), source) - default: - return emitConst(f, zeroConst(t)) - } -} - -func emitConst(f *Function, c *Const) *Const { - f.consts = append(f.consts, c) - return c -} diff --git a/vendor/honnef.co/go/tools/ir/exits.go b/vendor/honnef.co/go/tools/ir/exits.go deleted file mode 100644 index 10cda7bb6..000000000 --- a/vendor/honnef.co/go/tools/ir/exits.go +++ /dev/null @@ -1,271 +0,0 @@ -package ir - -import ( - "go/types" -) - -func (b *builder) buildExits(fn *Function) { - if obj := fn.Object(); obj != nil { - switch obj.Pkg().Path() { - case "runtime": - switch obj.Name() { - case "exit": - fn.WillExit = true - return - case "throw": - fn.WillExit = true - return - case "Goexit": - fn.WillUnwind = true - return - } - case "github.com/sirupsen/logrus": - switch obj.(*types.Func).FullName() { - case "(*github.com/sirupsen/logrus.Logger).Exit": - // Technically, this method does not unconditionally exit - // the process. It dynamically calls a function stored in - // the logger. If the function is nil, it defaults to - // os.Exit. - // - // The main intent of this method is to terminate the - // process, and that's what the vast majority of people - // will use it for. We'll happily accept some false - // negatives to avoid a lot of false positives. - fn.WillExit = true - return - case "(*github.com/sirupsen/logrus.Logger).Panic", - "(*github.com/sirupsen/logrus.Logger).Panicf", - "(*github.com/sirupsen/logrus.Logger).Panicln": - - // These methods will always panic, but that's not - // statically known from the code alone, because they - // take a detour through the generic Log methods. - fn.WillUnwind = true - return - case "(*github.com/sirupsen/logrus.Entry).Panicf", - "(*github.com/sirupsen/logrus.Entry).Panicln": - - // Entry.Panic has an explicit panic, but Panicf and - // Panicln do not, relying fully on the generic Log - // method. - fn.WillUnwind = true - return - case "(*github.com/sirupsen/logrus.Logger).Log", - "(*github.com/sirupsen/logrus.Logger).Logf", - "(*github.com/sirupsen/logrus.Logger).Logln": - // TODO(dh): we cannot handle these case. Whether they - // exit or unwind depends on the level, which is set - // via the first argument. We don't currently support - // call-site-specific exit information. - } - } - } - - buildDomTree(fn) - - isRecoverCall := func(instr Instruction) bool { - if instr, ok := instr.(*Call); ok { - if builtin, ok := instr.Call.Value.(*Builtin); ok { - if builtin.Name() == "recover" { - return true - } - } - } - return false - } - - // All panics branch to the exit block, which means that if every - // possible path through the function panics, then all - // predecessors of the exit block must panic. - willPanic := true - for _, pred := range fn.Exit.Preds { - if _, ok := pred.Control().(*Panic); !ok { - willPanic = false - } - } - if willPanic { - recovers := false - recoverLoop: - for _, u := range fn.Blocks { - for _, instr := range u.Instrs { - if instr, ok := instr.(*Defer); ok { - call := instr.Call.StaticCallee() - if call == nil { - // not a static call, so we can't be sure the - // deferred call isn't calling recover - recovers = true - break recoverLoop - } - if len(call.Blocks) == 0 { - // external function, we don't know what's - // happening inside it - // - // TODO(dh): this includes functions from - // imported packages, due to how go/analysis - // works. We could introduce another fact, - // like we've done for exiting and unwinding, - // but it doesn't seem worth it. Virtually all - // uses of recover will be in closures. - recovers = true - break recoverLoop - } - for _, y := range call.Blocks { - for _, instr2 := range y.Instrs { - if isRecoverCall(instr2) { - recovers = true - break recoverLoop - } - } - } - } - } - } - if !recovers { - fn.WillUnwind = true - return - } - } - - // TODO(dh): don't check that any specific call dominates the exit - // block. instead, check that all calls combined cover every - // possible path through the function. - exits := NewBlockSet(len(fn.Blocks)) - unwinds := NewBlockSet(len(fn.Blocks)) - for _, u := range fn.Blocks { - for _, instr := range u.Instrs { - if instr, ok := instr.(CallInstruction); ok { - switch instr.(type) { - case *Defer, *Call: - default: - continue - } - if instr.Common().IsInvoke() { - // give up - return - } - var call *Function - switch instr.Common().Value.(type) { - case *Function, *MakeClosure: - call = instr.Common().StaticCallee() - case *Builtin: - // the only builtins that affect control flow are - // panic and recover, and we've already handled - // those - continue - default: - // dynamic dispatch - return - } - // buildFunction is idempotent. if we're part of a - // (mutually) recursive call chain, then buildFunction - // will immediately return, and fn.WillExit will be false. - if call.Package() == fn.Package() { - b.buildFunction(call) - } - dom := u.Dominates(fn.Exit) - if call.WillExit { - if dom { - fn.WillExit = true - return - } - exits.Add(u) - } else if call.WillUnwind { - if dom { - fn.WillUnwind = true - return - } - unwinds.Add(u) - } - } - } - } - - // depth-first search trying to find a path to the exit block that - // doesn't cross any of the blacklisted blocks - seen := NewBlockSet(len(fn.Blocks)) - var findPath func(root *BasicBlock, bl *BlockSet) bool - findPath = func(root *BasicBlock, bl *BlockSet) bool { - if root == fn.Exit { - return true - } - if seen.Has(root) { - return false - } - if bl.Has(root) { - return false - } - seen.Add(root) - for _, succ := range root.Succs { - if findPath(succ, bl) { - return true - } - } - return false - } - - if exits.Num() > 0 { - if !findPath(fn.Blocks[0], exits) { - fn.WillExit = true - return - } - } - if unwinds.Num() > 0 { - seen.Clear() - if !findPath(fn.Blocks[0], unwinds) { - fn.WillUnwind = true - return - } - } -} - -func (b *builder) addUnreachables(fn *Function) { - for _, bb := range fn.Blocks { - for i, instr := range bb.Instrs { - if instr, ok := instr.(*Call); ok { - var call *Function - switch v := instr.Common().Value.(type) { - case *Function: - call = v - case *MakeClosure: - call = v.Fn.(*Function) - } - if call == nil { - continue - } - if call.Package() == fn.Package() { - // make sure we have information on all functions in this package - b.buildFunction(call) - } - if call.WillExit { - // This call will cause the process to terminate. - // Remove remaining instructions in the block and - // replace any control flow with Unreachable. - for _, succ := range bb.Succs { - succ.removePred(bb) - } - bb.Succs = bb.Succs[:0] - - bb.Instrs = bb.Instrs[:i+1] - bb.emit(new(Unreachable), instr.Source()) - addEdge(bb, fn.Exit) - break - } else if call.WillUnwind { - // This call will cause the goroutine to terminate - // and defers to run (i.e. a panic or - // runtime.Goexit). Remove remaining instructions - // in the block and replace any control flow with - // an unconditional jump to the exit block. - for _, succ := range bb.Succs { - succ.removePred(bb) - } - bb.Succs = bb.Succs[:0] - - bb.Instrs = bb.Instrs[:i+1] - bb.emit(new(Jump), instr.Source()) - addEdge(bb, fn.Exit) - break - } - } - } - } -} diff --git a/vendor/honnef.co/go/tools/ir/func.go b/vendor/honnef.co/go/tools/ir/func.go deleted file mode 100644 index 978849420..000000000 --- a/vendor/honnef.co/go/tools/ir/func.go +++ /dev/null @@ -1,963 +0,0 @@ -// Copyright 2013 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package ir - -// This file implements the Function and BasicBlock types. - -import ( - "bytes" - "fmt" - "go/ast" - "go/constant" - "go/format" - "go/token" - "go/types" - "io" - "os" - "strings" -) - -// addEdge adds a control-flow graph edge from from to to. -func addEdge(from, to *BasicBlock) { - from.Succs = append(from.Succs, to) - to.Preds = append(to.Preds, from) -} - -// Control returns the last instruction in the block. -func (b *BasicBlock) Control() Instruction { - if len(b.Instrs) == 0 { - return nil - } - return b.Instrs[len(b.Instrs)-1] -} - -// SIgmaFor returns the sigma node for v coming from pred. -func (b *BasicBlock) SigmaFor(v Value, pred *BasicBlock) *Sigma { - for _, instr := range b.Instrs { - sigma, ok := instr.(*Sigma) - if !ok { - // no more sigmas - return nil - } - if sigma.From == pred && sigma.X == v { - return sigma - } - } - return nil -} - -// Parent returns the function that contains block b. -func (b *BasicBlock) Parent() *Function { return b.parent } - -// String returns a human-readable label of this block. -// It is not guaranteed unique within the function. -// -func (b *BasicBlock) String() string { - return fmt.Sprintf("%d", b.Index) -} - -// emit appends an instruction to the current basic block. -// If the instruction defines a Value, it is returned. -// -func (b *BasicBlock) emit(i Instruction, source ast.Node) Value { - i.setSource(source) - i.setBlock(b) - b.Instrs = append(b.Instrs, i) - v, _ := i.(Value) - return v -} - -// predIndex returns the i such that b.Preds[i] == c or panics if -// there is none. -func (b *BasicBlock) predIndex(c *BasicBlock) int { - for i, pred := range b.Preds { - if pred == c { - return i - } - } - panic(fmt.Sprintf("no edge %s -> %s", c, b)) -} - -// succIndex returns the i such that b.Succs[i] == c or -1 if there is none. -func (b *BasicBlock) succIndex(c *BasicBlock) int { - for i, succ := range b.Succs { - if succ == c { - return i - } - } - return -1 -} - -// hasPhi returns true if b.Instrs contains φ-nodes. -func (b *BasicBlock) hasPhi() bool { - _, ok := b.Instrs[0].(*Phi) - return ok -} - -func (b *BasicBlock) Phis() []Instruction { - return b.phis() -} - -// phis returns the prefix of b.Instrs containing all the block's φ-nodes. -func (b *BasicBlock) phis() []Instruction { - for i, instr := range b.Instrs { - if _, ok := instr.(*Phi); !ok { - return b.Instrs[:i] - } - } - return nil // unreachable in well-formed blocks -} - -// replacePred replaces all occurrences of p in b's predecessor list with q. -// Ordinarily there should be at most one. -// -func (b *BasicBlock) replacePred(p, q *BasicBlock) { - for i, pred := range b.Preds { - if pred == p { - b.Preds[i] = q - } - } -} - -// replaceSucc replaces all occurrences of p in b's successor list with q. -// Ordinarily there should be at most one. -// -func (b *BasicBlock) replaceSucc(p, q *BasicBlock) { - for i, succ := range b.Succs { - if succ == p { - b.Succs[i] = q - } - } -} - -// removePred removes all occurrences of p in b's -// predecessor list and φ-nodes. -// Ordinarily there should be at most one. -// -func (b *BasicBlock) removePred(p *BasicBlock) { - phis := b.phis() - - // We must preserve edge order for φ-nodes. - j := 0 - for i, pred := range b.Preds { - if pred != p { - b.Preds[j] = b.Preds[i] - // Strike out φ-edge too. - for _, instr := range phis { - phi := instr.(*Phi) - phi.Edges[j] = phi.Edges[i] - } - j++ - } - } - // Nil out b.Preds[j:] and φ-edges[j:] to aid GC. - for i := j; i < len(b.Preds); i++ { - b.Preds[i] = nil - for _, instr := range phis { - instr.(*Phi).Edges[i] = nil - } - } - b.Preds = b.Preds[:j] - for _, instr := range phis { - phi := instr.(*Phi) - phi.Edges = phi.Edges[:j] - } -} - -// Destinations associated with unlabelled for/switch/select stmts. -// We push/pop one of these as we enter/leave each construct and for -// each BranchStmt we scan for the innermost target of the right type. -// -type targets struct { - tail *targets // rest of stack - _break *BasicBlock - _continue *BasicBlock - _fallthrough *BasicBlock -} - -// Destinations associated with a labelled block. -// We populate these as labels are encountered in forward gotos or -// labelled statements. -// -type lblock struct { - _goto *BasicBlock - _break *BasicBlock - _continue *BasicBlock -} - -// labelledBlock returns the branch target associated with the -// specified label, creating it if needed. -// -func (f *Function) labelledBlock(label *ast.Ident) *lblock { - lb := f.lblocks[label.Obj] - if lb == nil { - lb = &lblock{_goto: f.newBasicBlock(label.Name)} - if f.lblocks == nil { - f.lblocks = make(map[*ast.Object]*lblock) - } - f.lblocks[label.Obj] = lb - } - return lb -} - -// addParam adds a (non-escaping) parameter to f.Params of the -// specified name, type and source position. -// -func (f *Function) addParam(name string, typ types.Type, source ast.Node) *Parameter { - var b *BasicBlock - if len(f.Blocks) > 0 { - b = f.Blocks[0] - } - v := &Parameter{ - name: name, - } - v.setBlock(b) - v.setType(typ) - v.setSource(source) - f.Params = append(f.Params, v) - if b != nil { - // There may be no blocks if this function has no body. We - // still create params, but aren't interested in the - // instruction. - f.Blocks[0].Instrs = append(f.Blocks[0].Instrs, v) - } - return v -} - -func (f *Function) addParamObj(obj types.Object, source ast.Node) *Parameter { - name := obj.Name() - if name == "" { - name = fmt.Sprintf("arg%d", len(f.Params)) - } - param := f.addParam(name, obj.Type(), source) - param.object = obj - return param -} - -// addSpilledParam declares a parameter that is pre-spilled to the -// stack; the function body will load/store the spilled location. -// Subsequent lifting will eliminate spills where possible. -// -func (f *Function) addSpilledParam(obj types.Object, source ast.Node) { - param := f.addParamObj(obj, source) - spill := &Alloc{Comment: obj.Name()} - spill.setType(types.NewPointer(obj.Type())) - spill.source = source - f.objects[obj] = spill - f.Locals = append(f.Locals, spill) - f.emit(spill, source) - emitStore(f, spill, param, source) - // f.emit(&Store{Addr: spill, Val: param}) -} - -// startBody initializes the function prior to generating IR code for its body. -// Precondition: f.Type() already set. -// -func (f *Function) startBody() { - entry := f.newBasicBlock("entry") - f.currentBlock = entry - f.objects = make(map[types.Object]Value) // needed for some synthetics, e.g. init -} - -func (f *Function) blockset(i int) *BlockSet { - bs := &f.blocksets[i] - if len(bs.values) != len(f.Blocks) { - if cap(bs.values) >= len(f.Blocks) { - bs.values = bs.values[:len(f.Blocks)] - bs.Clear() - } else { - bs.values = make([]bool, len(f.Blocks)) - } - } else { - bs.Clear() - } - return bs -} - -func (f *Function) exitBlock() { - old := f.currentBlock - - f.Exit = f.newBasicBlock("exit") - f.currentBlock = f.Exit - - ret := f.results() - results := make([]Value, len(ret)) - // Run function calls deferred in this - // function when explicitly returning from it. - f.emit(new(RunDefers), nil) - for i, r := range ret { - results[i] = emitLoad(f, r, nil) - } - - f.emit(&Return{Results: results}, nil) - f.currentBlock = old -} - -// createSyntacticParams populates f.Params and generates code (spills -// and named result locals) for all the parameters declared in the -// syntax. In addition it populates the f.objects mapping. -// -// Preconditions: -// f.startBody() was called. -// Postcondition: -// len(f.Params) == len(f.Signature.Params) + (f.Signature.Recv() ? 1 : 0) -// -func (f *Function) createSyntacticParams(recv *ast.FieldList, functype *ast.FuncType) { - // Receiver (at most one inner iteration). - if recv != nil { - for _, field := range recv.List { - for _, n := range field.Names { - f.addSpilledParam(f.Pkg.info.Defs[n], n) - } - // Anonymous receiver? No need to spill. - if field.Names == nil { - f.addParamObj(f.Signature.Recv(), field) - } - } - } - - // Parameters. - if functype.Params != nil { - n := len(f.Params) // 1 if has recv, 0 otherwise - for _, field := range functype.Params.List { - for _, n := range field.Names { - f.addSpilledParam(f.Pkg.info.Defs[n], n) - } - // Anonymous parameter? No need to spill. - if field.Names == nil { - f.addParamObj(f.Signature.Params().At(len(f.Params)-n), field) - } - } - } - - // Named results. - if functype.Results != nil { - for _, field := range functype.Results.List { - // Implicit "var" decl of locals for named results. - for _, n := range field.Names { - f.namedResults = append(f.namedResults, f.addLocalForIdent(n)) - } - } - - if len(f.namedResults) == 0 { - sig := f.Signature.Results() - for i := 0; i < sig.Len(); i++ { - // XXX position information - v := f.addLocal(sig.At(i).Type(), nil) - v.Comment = fmt.Sprintf("ret.%d", i) - f.implicitResults = append(f.implicitResults, v) - } - } - } -} - -func numberNodes(f *Function) { - var base ID - for _, b := range f.Blocks { - for _, instr := range b.Instrs { - if instr == nil { - continue - } - base++ - instr.setID(base) - } - } -} - -// buildReferrers populates the def/use information in all non-nil -// Value.Referrers slice. -// Precondition: all such slices are initially empty. -func buildReferrers(f *Function) { - var rands []*Value - for _, b := range f.Blocks { - for _, instr := range b.Instrs { - rands = instr.Operands(rands[:0]) // recycle storage - for _, rand := range rands { - if r := *rand; r != nil { - if ref := r.Referrers(); ref != nil { - *ref = append(*ref, instr) - } - } - } - } - } -} - -func (f *Function) emitConsts() { - if len(f.Blocks) == 0 { - f.consts = nil - return - } - - // TODO(dh): our deduplication only works on booleans and - // integers. other constants are represented as pointers to - // things. - if len(f.consts) == 0 { - return - } else if len(f.consts) <= 32 { - f.emitConstsFew() - } else { - f.emitConstsMany() - } -} - -func (f *Function) emitConstsFew() { - dedup := make([]*Const, 0, 32) - for _, c := range f.consts { - if len(*c.Referrers()) == 0 { - continue - } - found := false - for _, d := range dedup { - if c.typ == d.typ && c.Value == d.Value { - replaceAll(c, d) - found = true - break - } - } - if !found { - dedup = append(dedup, c) - } - } - - instrs := make([]Instruction, len(f.Blocks[0].Instrs)+len(dedup)) - for i, c := range dedup { - instrs[i] = c - c.setBlock(f.Blocks[0]) - } - copy(instrs[len(dedup):], f.Blocks[0].Instrs) - f.Blocks[0].Instrs = instrs - f.consts = nil -} - -func (f *Function) emitConstsMany() { - type constKey struct { - typ types.Type - value constant.Value - } - - m := make(map[constKey]Value, len(f.consts)) - areNil := 0 - for i, c := range f.consts { - if len(*c.Referrers()) == 0 { - f.consts[i] = nil - areNil++ - continue - } - - k := constKey{ - typ: c.typ, - value: c.Value, - } - if dup, ok := m[k]; !ok { - m[k] = c - } else { - f.consts[i] = nil - areNil++ - replaceAll(c, dup) - } - } - - instrs := make([]Instruction, len(f.Blocks[0].Instrs)+len(f.consts)-areNil) - i := 0 - for _, c := range f.consts { - if c != nil { - instrs[i] = c - c.setBlock(f.Blocks[0]) - i++ - } - } - copy(instrs[i:], f.Blocks[0].Instrs) - f.Blocks[0].Instrs = instrs - f.consts = nil -} - -// buildFakeExits ensures that every block in the function is -// reachable in reverse from the Exit block. This is required to build -// a full post-dominator tree, and to ensure the exit block's -// inclusion in the dominator tree. -func buildFakeExits(fn *Function) { - // Find back-edges via forward DFS - fn.fakeExits = BlockSet{values: make([]bool, len(fn.Blocks))} - seen := fn.blockset(0) - backEdges := fn.blockset(1) - - var dfs func(b *BasicBlock) - dfs = func(b *BasicBlock) { - if !seen.Add(b) { - backEdges.Add(b) - return - } - for _, pred := range b.Succs { - dfs(pred) - } - } - dfs(fn.Blocks[0]) -buildLoop: - for { - seen := fn.blockset(2) - var dfs func(b *BasicBlock) - dfs = func(b *BasicBlock) { - if !seen.Add(b) { - return - } - for _, pred := range b.Preds { - dfs(pred) - } - if b == fn.Exit { - for _, b := range fn.Blocks { - if fn.fakeExits.Has(b) { - dfs(b) - } - } - } - } - dfs(fn.Exit) - - for _, b := range fn.Blocks { - if !seen.Has(b) && backEdges.Has(b) { - // Block b is not reachable from the exit block. Add a - // fake jump from b to exit, then try again. Note that we - // only add one fake edge at a time, as it may make - // multiple blocks reachable. - // - // We only consider those blocks that have back edges. - // Any unreachable block that doesn't have a back edge - // must flow into a loop, which by definition has a - // back edge. Thus, by looking for loops, we should - // need fewer fake edges overall. - fn.fakeExits.Add(b) - continue buildLoop - } - } - - break - } -} - -// finishBody() finalizes the function after IR code generation of its body. -func (f *Function) finishBody() { - f.objects = nil - f.currentBlock = nil - f.lblocks = nil - - // Remove from f.Locals any Allocs that escape to the heap. - j := 0 - for _, l := range f.Locals { - if !l.Heap { - f.Locals[j] = l - j++ - } - } - // Nil out f.Locals[j:] to aid GC. - for i := j; i < len(f.Locals); i++ { - f.Locals[i] = nil - } - f.Locals = f.Locals[:j] - - optimizeBlocks(f) - buildReferrers(f) - buildDomTree(f) - buildPostDomTree(f) - - if f.Prog.mode&NaiveForm == 0 { - lift(f) - } - - // emit constants after lifting, because lifting may produce new constants. - f.emitConsts() - - f.namedResults = nil // (used by lifting) - f.implicitResults = nil - - numberNodes(f) - - defer f.wr.Close() - f.wr.WriteFunc("start", "start", f) - - if f.Prog.mode&PrintFunctions != 0 { - printMu.Lock() - f.WriteTo(os.Stdout) - printMu.Unlock() - } - - if f.Prog.mode&SanityCheckFunctions != 0 { - mustSanityCheck(f, nil) - } -} - -func isUselessPhi(phi *Phi) (Value, bool) { - var v0 Value - for _, e := range phi.Edges { - if e == phi { - continue - } - if v0 == nil { - v0 = e - } - if v0 != e { - if v0, ok := v0.(*Const); ok { - if e, ok := e.(*Const); ok { - if v0.typ == e.typ && v0.Value == e.Value { - continue - } - } - } - return nil, false - } - } - return v0, true -} - -func (f *Function) RemoveNilBlocks() { - f.removeNilBlocks() -} - -// removeNilBlocks eliminates nils from f.Blocks and updates each -// BasicBlock.Index. Use this after any pass that may delete blocks. -// -func (f *Function) removeNilBlocks() { - j := 0 - for _, b := range f.Blocks { - if b != nil { - b.Index = j - f.Blocks[j] = b - j++ - } - } - // Nil out f.Blocks[j:] to aid GC. - for i := j; i < len(f.Blocks); i++ { - f.Blocks[i] = nil - } - f.Blocks = f.Blocks[:j] -} - -// SetDebugMode sets the debug mode for package pkg. If true, all its -// functions will include full debug info. This greatly increases the -// size of the instruction stream, and causes Functions to depend upon -// the ASTs, potentially keeping them live in memory for longer. -// -func (pkg *Package) SetDebugMode(debug bool) { - // TODO(adonovan): do we want ast.File granularity? - pkg.debug = debug -} - -// debugInfo reports whether debug info is wanted for this function. -func (f *Function) debugInfo() bool { - return f.Pkg != nil && f.Pkg.debug -} - -// addNamedLocal creates a local variable, adds it to function f and -// returns it. Its name and type are taken from obj. Subsequent -// calls to f.lookup(obj) will return the same local. -// -func (f *Function) addNamedLocal(obj types.Object, source ast.Node) *Alloc { - l := f.addLocal(obj.Type(), source) - l.Comment = obj.Name() - f.objects[obj] = l - return l -} - -func (f *Function) addLocalForIdent(id *ast.Ident) *Alloc { - return f.addNamedLocal(f.Pkg.info.Defs[id], id) -} - -// addLocal creates an anonymous local variable of type typ, adds it -// to function f and returns it. pos is the optional source location. -// -func (f *Function) addLocal(typ types.Type, source ast.Node) *Alloc { - v := &Alloc{} - v.setType(types.NewPointer(typ)) - f.Locals = append(f.Locals, v) - f.emit(v, source) - return v -} - -// lookup returns the address of the named variable identified by obj -// that is local to function f or one of its enclosing functions. -// If escaping, the reference comes from a potentially escaping pointer -// expression and the referent must be heap-allocated. -// -func (f *Function) lookup(obj types.Object, escaping bool) Value { - if v, ok := f.objects[obj]; ok { - if alloc, ok := v.(*Alloc); ok && escaping { - alloc.Heap = true - } - return v // function-local var (address) - } - - // Definition must be in an enclosing function; - // plumb it through intervening closures. - if f.parent == nil { - panic("no ir.Value for " + obj.String()) - } - outer := f.parent.lookup(obj, true) // escaping - v := &FreeVar{ - name: obj.Name(), - typ: outer.Type(), - outer: outer, - parent: f, - } - f.objects[obj] = v - f.FreeVars = append(f.FreeVars, v) - return v -} - -// emit emits the specified instruction to function f. -func (f *Function) emit(instr Instruction, source ast.Node) Value { - return f.currentBlock.emit(instr, source) -} - -// RelString returns the full name of this function, qualified by -// package name, receiver type, etc. -// -// The specific formatting rules are not guaranteed and may change. -// -// Examples: -// "math.IsNaN" // a package-level function -// "(*bytes.Buffer).Bytes" // a declared method or a wrapper -// "(*bytes.Buffer).Bytes$thunk" // thunk (func wrapping method; receiver is param 0) -// "(*bytes.Buffer).Bytes$bound" // bound (func wrapping method; receiver supplied by closure) -// "main.main$1" // an anonymous function in main -// "main.init#1" // a declared init function -// "main.init" // the synthesized package initializer -// -// When these functions are referred to from within the same package -// (i.e. from == f.Pkg.Object), they are rendered without the package path. -// For example: "IsNaN", "(*Buffer).Bytes", etc. -// -// All non-synthetic functions have distinct package-qualified names. -// (But two methods may have the same name "(T).f" if one is a synthetic -// wrapper promoting a non-exported method "f" from another package; in -// that case, the strings are equal but the identifiers "f" are distinct.) -// -func (f *Function) RelString(from *types.Package) string { - // Anonymous? - if f.parent != nil { - // An anonymous function's Name() looks like "parentName$1", - // but its String() should include the type/package/etc. - parent := f.parent.RelString(from) - for i, anon := range f.parent.AnonFuncs { - if anon == f { - return fmt.Sprintf("%s$%d", parent, 1+i) - } - } - - return f.name // should never happen - } - - // Method (declared or wrapper)? - if recv := f.Signature.Recv(); recv != nil { - return f.relMethod(from, recv.Type()) - } - - // Thunk? - if f.method != nil { - return f.relMethod(from, f.method.Recv()) - } - - // Bound? - if len(f.FreeVars) == 1 && strings.HasSuffix(f.name, "$bound") { - return f.relMethod(from, f.FreeVars[0].Type()) - } - - // Package-level function? - // Prefix with package name for cross-package references only. - if p := f.pkg(); p != nil && p != from { - return fmt.Sprintf("%s.%s", p.Path(), f.name) - } - - // Unknown. - return f.name -} - -func (f *Function) relMethod(from *types.Package, recv types.Type) string { - return fmt.Sprintf("(%s).%s", relType(recv, from), f.name) -} - -// writeSignature writes to buf the signature sig in declaration syntax. -func writeSignature(buf *bytes.Buffer, from *types.Package, name string, sig *types.Signature, params []*Parameter) { - buf.WriteString("func ") - if recv := sig.Recv(); recv != nil { - buf.WriteString("(") - if n := params[0].Name(); n != "" { - buf.WriteString(n) - buf.WriteString(" ") - } - types.WriteType(buf, params[0].Type(), types.RelativeTo(from)) - buf.WriteString(") ") - } - buf.WriteString(name) - types.WriteSignature(buf, sig, types.RelativeTo(from)) -} - -func (f *Function) pkg() *types.Package { - if f.Pkg != nil { - return f.Pkg.Pkg - } - return nil -} - -var _ io.WriterTo = (*Function)(nil) // *Function implements io.Writer - -func (f *Function) WriteTo(w io.Writer) (int64, error) { - var buf bytes.Buffer - WriteFunction(&buf, f) - n, err := w.Write(buf.Bytes()) - return int64(n), err -} - -// WriteFunction writes to buf a human-readable "disassembly" of f. -func WriteFunction(buf *bytes.Buffer, f *Function) { - fmt.Fprintf(buf, "# Name: %s\n", f.String()) - if f.Pkg != nil { - fmt.Fprintf(buf, "# Package: %s\n", f.Pkg.Pkg.Path()) - } - if syn := f.Synthetic; syn != "" { - fmt.Fprintln(buf, "# Synthetic:", syn) - } - if pos := f.Pos(); pos.IsValid() { - fmt.Fprintf(buf, "# Location: %s\n", f.Prog.Fset.Position(pos)) - } - - if f.parent != nil { - fmt.Fprintf(buf, "# Parent: %s\n", f.parent.Name()) - } - - from := f.pkg() - - if f.FreeVars != nil { - buf.WriteString("# Free variables:\n") - for i, fv := range f.FreeVars { - fmt.Fprintf(buf, "# % 3d:\t%s %s\n", i, fv.Name(), relType(fv.Type(), from)) - } - } - - if len(f.Locals) > 0 { - buf.WriteString("# Locals:\n") - for i, l := range f.Locals { - fmt.Fprintf(buf, "# % 3d:\t%s %s\n", i, l.Name(), relType(deref(l.Type()), from)) - } - } - writeSignature(buf, from, f.Name(), f.Signature, f.Params) - buf.WriteString(":\n") - - if f.Blocks == nil { - buf.WriteString("\t(external)\n") - } - - for _, b := range f.Blocks { - if b == nil { - // Corrupt CFG. - fmt.Fprintf(buf, ".nil:\n") - continue - } - fmt.Fprintf(buf, "b%d:", b.Index) - if len(b.Preds) > 0 { - fmt.Fprint(buf, " ←") - for _, pred := range b.Preds { - fmt.Fprintf(buf, " b%d", pred.Index) - } - } - if b.Comment != "" { - fmt.Fprintf(buf, " # %s", b.Comment) - } - buf.WriteByte('\n') - - if false { // CFG debugging - fmt.Fprintf(buf, "\t# CFG: %s --> %s --> %s\n", b.Preds, b, b.Succs) - } - - buf2 := &bytes.Buffer{} - for _, instr := range b.Instrs { - buf.WriteString("\t") - switch v := instr.(type) { - case Value: - // Left-align the instruction. - if name := v.Name(); name != "" { - fmt.Fprintf(buf, "%s = ", name) - } - buf.WriteString(instr.String()) - case nil: - // Be robust against bad transforms. - buf.WriteString("") - default: - buf.WriteString(instr.String()) - } - buf.WriteString("\n") - - if f.Prog.mode&PrintSource != 0 { - if s := instr.Source(); s != nil { - buf2.Reset() - format.Node(buf2, f.Prog.Fset, s) - for { - line, err := buf2.ReadString('\n') - if len(line) == 0 { - break - } - buf.WriteString("\t\t> ") - buf.WriteString(line) - if line[len(line)-1] != '\n' { - buf.WriteString("\n") - } - if err != nil { - break - } - } - } - } - } - buf.WriteString("\n") - } -} - -// newBasicBlock adds to f a new basic block and returns it. It does -// not automatically become the current block for subsequent calls to emit. -// comment is an optional string for more readable debugging output. -// -func (f *Function) newBasicBlock(comment string) *BasicBlock { - b := &BasicBlock{ - Index: len(f.Blocks), - Comment: comment, - parent: f, - } - b.Succs = b.succs2[:0] - f.Blocks = append(f.Blocks, b) - return b -} - -// NewFunction returns a new synthetic Function instance belonging to -// prog, with its name and signature fields set as specified. -// -// The caller is responsible for initializing the remaining fields of -// the function object, e.g. Pkg, Params, Blocks. -// -// It is practically impossible for clients to construct well-formed -// IR functions/packages/programs directly, so we assume this is the -// job of the Builder alone. NewFunction exists to provide clients a -// little flexibility. For example, analysis tools may wish to -// construct fake Functions for the root of the callgraph, a fake -// "reflect" package, etc. -// -// TODO(adonovan): think harder about the API here. -// -func (prog *Program) NewFunction(name string, sig *types.Signature, provenance string) *Function { - return &Function{Prog: prog, name: name, Signature: sig, Synthetic: provenance} -} - -//lint:ignore U1000 we may make use of this for functions loaded from export data -type extentNode [2]token.Pos - -func (n extentNode) Pos() token.Pos { return n[0] } -func (n extentNode) End() token.Pos { return n[1] } - -func (f *Function) initHTML(name string) { - if name == "" { - return - } - if rel := f.RelString(nil); rel == name { - f.wr = NewHTMLWriter("ir.html", rel, "") - } -} diff --git a/vendor/honnef.co/go/tools/ir/html.go b/vendor/honnef.co/go/tools/ir/html.go deleted file mode 100644 index 8570aa66d..000000000 --- a/vendor/honnef.co/go/tools/ir/html.go +++ /dev/null @@ -1,1130 +0,0 @@ -// Copyright 2015 The Go Authors. All rights reserved. -// Copyright 2019 Dominik Honnef. All rights reserved. - -package ir - -import ( - "bytes" - "fmt" - "go/types" - "html" - "io" - "log" - "os" - "os/exec" - "path/filepath" - "reflect" - "sort" - "strings" -) - -func live(f *Function) []bool { - max := 0 - var ops []*Value - - for _, b := range f.Blocks { - for _, instr := range b.Instrs { - if int(instr.ID()) > max { - max = int(instr.ID()) - } - } - } - - out := make([]bool, max+1) - var q []Node - for _, b := range f.Blocks { - for _, instr := range b.Instrs { - switch instr.(type) { - case *BlankStore, *Call, *ConstantSwitch, *Defer, *Go, *If, *Jump, *MapUpdate, *Next, *Panic, *Recv, *Return, *RunDefers, *Send, *Store, *Unreachable: - out[instr.ID()] = true - q = append(q, instr) - } - } - } - - for len(q) > 0 { - v := q[len(q)-1] - q = q[:len(q)-1] - for _, op := range v.Operands(ops) { - if *op == nil { - continue - } - if !out[(*op).ID()] { - out[(*op).ID()] = true - q = append(q, *op) - } - } - } - - return out -} - -type funcPrinter interface { - startBlock(b *BasicBlock, reachable bool) - endBlock(b *BasicBlock) - value(v Node, live bool) - startDepCycle() - endDepCycle() - named(n string, vals []Value) -} - -func namedValues(f *Function) map[types.Object][]Value { - names := map[types.Object][]Value{} - for _, b := range f.Blocks { - for _, instr := range b.Instrs { - if instr, ok := instr.(*DebugRef); ok { - if obj := instr.object; obj != nil { - names[obj] = append(names[obj], instr.X) - } - } - } - } - // XXX deduplicate values - return names -} - -func fprintFunc(p funcPrinter, f *Function) { - // XXX does our IR form preserve unreachable blocks? - // reachable, live := findlive(f) - - l := live(f) - for _, b := range f.Blocks { - // XXX - // p.startBlock(b, reachable[b.Index]) - p.startBlock(b, true) - - end := len(b.Instrs) - 1 - if end < 0 { - end = 0 - } - for _, v := range b.Instrs[:end] { - if _, ok := v.(*DebugRef); !ok { - p.value(v, l[v.ID()]) - } - } - p.endBlock(b) - } - - names := namedValues(f) - keys := make([]types.Object, 0, len(names)) - for key := range names { - keys = append(keys, key) - } - sort.Slice(keys, func(i, j int) bool { - return keys[i].Pos() < keys[j].Pos() - }) - for _, key := range keys { - p.named(key.Name(), names[key]) - } -} - -func opName(v Node) string { - switch v := v.(type) { - case *Call: - if v.Common().IsInvoke() { - return "Invoke" - } - return "Call" - case *Alloc: - if v.Heap { - return "HeapAlloc" - } - return "StackAlloc" - case *Select: - if v.Blocking { - return "SelectBlocking" - } - return "SelectNonBlocking" - default: - return reflect.ValueOf(v).Type().Elem().Name() - } -} - -type HTMLWriter struct { - w io.WriteCloser - path string - dot *dotWriter -} - -func NewHTMLWriter(path string, funcname, cfgMask string) *HTMLWriter { - out, err := os.OpenFile(path, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0644) - if err != nil { - log.Fatalf("%v", err) - } - pwd, err := os.Getwd() - if err != nil { - log.Fatalf("%v", err) - } - html := HTMLWriter{w: out, path: filepath.Join(pwd, path)} - html.dot = newDotWriter() - html.start(funcname) - return &html -} - -func (w *HTMLWriter) start(name string) { - if w == nil { - return - } - w.WriteString("") - w.WriteString(` - - - - - -`) - w.WriteString("") - w.WriteString("

") - w.WriteString(html.EscapeString(name)) - w.WriteString("

") - w.WriteString(` -help -
- -

-Click on a value or block to toggle highlighting of that value/block -and its uses. (Values and blocks are highlighted by ID, and IDs of -dead items may be reused, so not all highlights necessarily correspond -to the clicked item.) -

- -

-Faded out values and blocks are dead code that has not been eliminated. -

- -

-Values printed in italics have a dependency cycle. -

- -

-CFG: Dashed edge is for unlikely branches. Blue color is for backward edges. -Edge with a dot means that this edge follows the order in which blocks were laidout. -

- -
-`) - w.WriteString("") - w.WriteString("") -} - -func (w *HTMLWriter) Close() { - if w == nil { - return - } - io.WriteString(w.w, "") - io.WriteString(w.w, "
") - io.WriteString(w.w, "") - io.WriteString(w.w, "") - w.w.Close() - fmt.Printf("dumped IR to %v\n", w.path) -} - -// WriteFunc writes f in a column headed by title. -// phase is used for collapsing columns and should be unique across the table. -func (w *HTMLWriter) WriteFunc(phase, title string, f *Function) { - if w == nil { - return - } - w.WriteColumn(phase, title, "", funcHTML(f, phase, w.dot)) -} - -// WriteColumn writes raw HTML in a column headed by title. -// It is intended for pre- and post-compilation log output. -func (w *HTMLWriter) WriteColumn(phase, title, class, html string) { - if w == nil { - return - } - id := strings.Replace(phase, " ", "-", -1) - // collapsed column - w.Printf("
%v
", id, phase) - - if class == "" { - w.Printf("", id) - } else { - w.Printf("", id, class) - } - w.WriteString("

" + title + "

") - w.WriteString(html) - w.WriteString("") -} - -func (w *HTMLWriter) Printf(msg string, v ...interface{}) { - if _, err := fmt.Fprintf(w.w, msg, v...); err != nil { - log.Fatalf("%v", err) - } -} - -func (w *HTMLWriter) WriteString(s string) { - if _, err := io.WriteString(w.w, s); err != nil { - log.Fatalf("%v", err) - } -} - -func valueHTML(v Node) string { - if v == nil { - return "<nil>" - } - // TODO: Using the value ID as the class ignores the fact - // that value IDs get recycled and that some values - // are transmuted into other values. - class := fmt.Sprintf("t%d", v.ID()) - var label string - switch v := v.(type) { - case *Function: - label = v.RelString(nil) - case *Builtin: - label = v.Name() - default: - label = class - } - return fmt.Sprintf("%s", class, label) -} - -func valueLongHTML(v Node) string { - // TODO: Any intra-value formatting? - // I'm wary of adding too much visual noise, - // but a little bit might be valuable. - // We already have visual noise in the form of punctuation - // maybe we could replace some of that with formatting. - s := fmt.Sprintf("", v.ID()) - - linenumber := "(?)" - if v.Pos().IsValid() { - line := v.Parent().Prog.Fset.Position(v.Pos()).Line - linenumber = fmt.Sprintf("(%d)", line, line) - } - - s += fmt.Sprintf("%s %s = %s", valueHTML(v), linenumber, opName(v)) - - if v, ok := v.(Value); ok { - s += " <" + html.EscapeString(v.Type().String()) + ">" - } - - switch v := v.(type) { - case *Parameter: - s += fmt.Sprintf(" {%s}", html.EscapeString(v.name)) - case *BinOp: - s += fmt.Sprintf(" {%s}", html.EscapeString(v.Op.String())) - case *UnOp: - s += fmt.Sprintf(" {%s}", html.EscapeString(v.Op.String())) - case *Extract: - name := v.Tuple.Type().(*types.Tuple).At(v.Index).Name() - s += fmt.Sprintf(" [%d] (%s)", v.Index, name) - case *Field: - st := v.X.Type().Underlying().(*types.Struct) - // Be robust against a bad index. - name := "?" - if 0 <= v.Field && v.Field < st.NumFields() { - name = st.Field(v.Field).Name() - } - s += fmt.Sprintf(" [%d] (%s)", v.Field, name) - case *FieldAddr: - st := deref(v.X.Type()).Underlying().(*types.Struct) - // Be robust against a bad index. - name := "?" - if 0 <= v.Field && v.Field < st.NumFields() { - name = st.Field(v.Field).Name() - } - - s += fmt.Sprintf(" [%d] (%s)", v.Field, name) - case *Recv: - s += fmt.Sprintf(" {%t}", v.CommaOk) - case *Call: - if v.Common().IsInvoke() { - s += fmt.Sprintf(" {%s}", html.EscapeString(v.Common().Method.FullName())) - } - case *Const: - if v.Value == nil { - s += " {<nil>}" - } else { - s += fmt.Sprintf(" {%s}", html.EscapeString(v.Value.String())) - } - case *Sigma: - s += fmt.Sprintf(" [#%s]", v.From) - } - for _, a := range v.Operands(nil) { - s += fmt.Sprintf(" %s", valueHTML(*a)) - } - switch v := v.(type) { - case *Alloc: - s += fmt.Sprintf(" (%s)", v.Comment) - case *Sigma: - s += fmt.Sprintf(" (%s)", v.Comment) - } - - // OPT(dh): we're calling namedValues many times on the same function. - allNames := namedValues(v.Parent()) - var names []string - for name, values := range allNames { - for _, value := range values { - if v == value { - names = append(names, name.Name()) - break - } - } - } - if len(names) != 0 { - s += " (" + strings.Join(names, ", ") + ")" - } - - s += "" - return s -} - -func blockHTML(b *BasicBlock) string { - // TODO: Using the value ID as the class ignores the fact - // that value IDs get recycled and that some values - // are transmuted into other values. - s := html.EscapeString(b.String()) - return fmt.Sprintf("%s", s, s) -} - -func blockLongHTML(b *BasicBlock) string { - var kind string - var term Instruction - if len(b.Instrs) > 0 { - term = b.Control() - kind = opName(term) - } - // TODO: improve this for HTML? - s := fmt.Sprintf("%s", b.Index, kind) - - if term != nil { - ops := term.Operands(nil) - if len(ops) > 0 { - var ss []string - for _, op := range ops { - ss = append(ss, valueHTML(*op)) - } - s += " " + strings.Join(ss, ", ") - } - } - if len(b.Succs) > 0 { - s += " →" // right arrow - for _, c := range b.Succs { - s += " " + blockHTML(c) - } - } - return s -} - -func funcHTML(f *Function, phase string, dot *dotWriter) string { - buf := new(bytes.Buffer) - if dot != nil { - dot.writeFuncSVG(buf, phase, f) - } - fmt.Fprint(buf, "") - p := htmlFuncPrinter{w: buf} - fprintFunc(p, f) - - // fprintFunc(&buf, f) // TODO: HTML, not text,
for line breaks, etc. - fmt.Fprint(buf, "") - return buf.String() -} - -type htmlFuncPrinter struct { - w io.Writer -} - -func (p htmlFuncPrinter) startBlock(b *BasicBlock, reachable bool) { - var dead string - if !reachable { - dead = "dead-block" - } - fmt.Fprintf(p.w, "
    ", b, dead) - fmt.Fprintf(p.w, "
  • %s:", blockHTML(b)) - if len(b.Preds) > 0 { - io.WriteString(p.w, " ←") // left arrow - for _, pred := range b.Preds { - fmt.Fprintf(p.w, " %s", blockHTML(pred)) - } - } - if len(b.Instrs) > 0 { - io.WriteString(p.w, ``) - } - io.WriteString(p.w, "
    • ") - if len(b.Instrs) > 0 { // start list of values - io.WriteString(p.w, "
  • ") - io.WriteString(p.w, "
      ") - } -} - -func (p htmlFuncPrinter) endBlock(b *BasicBlock) { - if len(b.Instrs) > 0 { // end list of values - io.WriteString(p.w, "
    ") - io.WriteString(p.w, "
    • ") - } - io.WriteString(p.w, "
  • ") - fmt.Fprint(p.w, blockLongHTML(b)) - io.WriteString(p.w, "
    • ") - io.WriteString(p.w, "
") -} - -func (p htmlFuncPrinter) value(v Node, live bool) { - var dead string - if !live { - dead = "dead-value" - } - fmt.Fprintf(p.w, "
  • ", dead) - fmt.Fprint(p.w, valueLongHTML(v)) - io.WriteString(p.w, "
    • ") -} - -func (p htmlFuncPrinter) startDepCycle() { - fmt.Fprintln(p.w, "") -} - -func (p htmlFuncPrinter) endDepCycle() { - fmt.Fprintln(p.w, "") -} - -func (p htmlFuncPrinter) named(n string, vals []Value) { - fmt.Fprintf(p.w, "
  • name %s: ", n) - for _, val := range vals { - fmt.Fprintf(p.w, "%s ", valueHTML(val)) - } - fmt.Fprintf(p.w, "
    • ") -} - -type dotWriter struct { - path string - broken bool -} - -// newDotWriter returns non-nil value when mask is valid. -// dotWriter will generate SVGs only for the phases specified in the mask. -// mask can contain following patterns and combinations of them: -// * - all of them; -// x-y - x through y, inclusive; -// x,y - x and y, but not the passes between. -func newDotWriter() *dotWriter { - path, err := exec.LookPath("dot") - if err != nil { - fmt.Println(err) - return nil - } - return &dotWriter{path: path} -} - -func (d *dotWriter) writeFuncSVG(w io.Writer, phase string, f *Function) { - if d.broken { - return - } - cmd := exec.Command(d.path, "-Tsvg") - pipe, err := cmd.StdinPipe() - if err != nil { - d.broken = true - fmt.Println(err) - return - } - buf := new(bytes.Buffer) - cmd.Stdout = buf - bufErr := new(bytes.Buffer) - cmd.Stderr = bufErr - err = cmd.Start() - if err != nil { - d.broken = true - fmt.Println(err) - return - } - fmt.Fprint(pipe, `digraph "" { margin=0; size="4,40"; ranksep=.2; `) - id := strings.Replace(phase, " ", "-", -1) - fmt.Fprintf(pipe, `id="g_graph_%s";`, id) - fmt.Fprintf(pipe, `node [style=filled,fillcolor=white,fontsize=16,fontname="Menlo,Times,serif",margin="0.01,0.03"];`) - fmt.Fprintf(pipe, `edge [fontsize=16,fontname="Menlo,Times,serif"];`) - for _, b := range f.Blocks { - layout := "" - fmt.Fprintf(pipe, `%v [label="%v%s\n%v",id="graph_node_%v_%v"];`, b, b, layout, b.Control().String(), id, b) - } - indexOf := make([]int, len(f.Blocks)) - for i, b := range f.Blocks { - indexOf[b.Index] = i - } - - // XXX - /* - ponums := make([]int32, len(f.Blocks)) - _ = postorderWithNumbering(f, ponums) - isBackEdge := func(from, to int) bool { - return ponums[from] <= ponums[to] - } - */ - isBackEdge := func(from, to int) bool { return false } - - for _, b := range f.Blocks { - for i, s := range b.Succs { - style := "solid" - color := "black" - arrow := "vee" - if isBackEdge(b.Index, s.Index) { - color = "blue" - } - fmt.Fprintf(pipe, `%v -> %v [label=" %d ",style="%s",color="%s",arrowhead="%s"];`, b, s, i, style, color, arrow) - } - } - fmt.Fprint(pipe, "}") - pipe.Close() - err = cmd.Wait() - if err != nil { - d.broken = true - fmt.Printf("dot: %v\n%v\n", err, bufErr.String()) - return - } - - svgID := "svg_graph_" + id - fmt.Fprintf(w, `
    `, svgID, svgID) - // For now, an awful hack: edit the html as it passes through - // our fingers, finding ' 0 { - fset = initial[0].Fset - } - - prog := ir.NewProgram(fset, mode) - if opts != nil { - prog.PrintFunc = opts.PrintFunc - } - - isInitial := make(map[*packages.Package]bool, len(initial)) - for _, p := range initial { - isInitial[p] = true - } - - irmap := make(map[*packages.Package]*ir.Package) - packages.Visit(initial, nil, func(p *packages.Package) { - if p.Types != nil && !p.IllTyped { - var files []*ast.File - if deps || isInitial[p] { - files = p.Syntax - } - irmap[p] = prog.CreatePackage(p.Types, files, p.TypesInfo, true) - } - }) - - var irpkgs []*ir.Package - for _, p := range initial { - irpkgs = append(irpkgs, irmap[p]) // may be nil - } - return prog, irpkgs -} - -// CreateProgram returns a new program in IR form, given a program -// loaded from source. An IR package is created for each transitively -// error-free package of lprog. -// -// Code for bodies of functions is not built until Build is called -// on the result. -// -// The mode parameter controls diagnostics and checking during IR construction. -// -// Deprecated: use golang.org/x/tools/go/packages and the Packages -// function instead; see ir.ExampleLoadPackages. -// -func CreateProgram(lprog *loader.Program, mode ir.BuilderMode) *ir.Program { - prog := ir.NewProgram(lprog.Fset, mode) - - for _, info := range lprog.AllPackages { - if info.TransitivelyErrorFree { - prog.CreatePackage(info.Pkg, info.Files, &info.Info, info.Importable) - } - } - - return prog -} - -// BuildPackage builds an IR program with IR for a single package. -// -// It populates pkg by type-checking the specified file ASTs. All -// dependencies are loaded using the importer specified by tc, which -// typically loads compiler export data; IR code cannot be built for -// those packages. BuildPackage then constructs an ir.Program with all -// dependency packages created, and builds and returns the IR package -// corresponding to pkg. -// -// The caller must have set pkg.Path() to the import path. -// -// The operation fails if there were any type-checking or import errors. -// -// See ../ir/example_test.go for an example. -// -func BuildPackage(tc *types.Config, fset *token.FileSet, pkg *types.Package, files []*ast.File, mode ir.BuilderMode) (*ir.Package, *types.Info, error) { - if fset == nil { - panic("no token.FileSet") - } - if pkg.Path() == "" { - panic("package has no import path") - } - - info := &types.Info{ - Types: make(map[ast.Expr]types.TypeAndValue), - Defs: make(map[*ast.Ident]types.Object), - Uses: make(map[*ast.Ident]types.Object), - Implicits: make(map[ast.Node]types.Object), - Scopes: make(map[ast.Node]*types.Scope), - Selections: make(map[*ast.SelectorExpr]*types.Selection), - } - if err := types.NewChecker(tc, fset, pkg, info).Files(files); err != nil { - return nil, nil, err - } - - prog := ir.NewProgram(fset, mode) - - // Create IR packages for all imports. - // Order is not significant. - created := make(map[*types.Package]bool) - var createAll func(pkgs []*types.Package) - createAll = func(pkgs []*types.Package) { - for _, p := range pkgs { - if !created[p] { - created[p] = true - prog.CreatePackage(p, nil, nil, true) - createAll(p.Imports()) - } - } - } - createAll(pkg.Imports()) - - // Create and build the primary package. - irpkg := prog.CreatePackage(pkg, files, info, false) - irpkg.Build() - return irpkg, info, nil -} diff --git a/vendor/honnef.co/go/tools/ir/irutil/switch.go b/vendor/honnef.co/go/tools/ir/irutil/switch.go deleted file mode 100644 index f44cbca9e..000000000 --- a/vendor/honnef.co/go/tools/ir/irutil/switch.go +++ /dev/null @@ -1,264 +0,0 @@ -// Copyright 2013 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package irutil - -// This file implements discovery of switch and type-switch constructs -// from low-level control flow. -// -// Many techniques exist for compiling a high-level switch with -// constant cases to efficient machine code. The optimal choice will -// depend on the data type, the specific case values, the code in the -// body of each case, and the hardware. -// Some examples: -// - a lookup table (for a switch that maps constants to constants) -// - a computed goto -// - a binary tree -// - a perfect hash -// - a two-level switch (to partition constant strings by their first byte). - -import ( - "bytes" - "fmt" - "go/token" - "go/types" - - "honnef.co/go/tools/ir" -) - -// A ConstCase represents a single constant comparison. -// It is part of a Switch. -type ConstCase struct { - Block *ir.BasicBlock // block performing the comparison - Body *ir.BasicBlock // body of the case - Value *ir.Const // case comparand -} - -// A TypeCase represents a single type assertion. -// It is part of a Switch. -type TypeCase struct { - Block *ir.BasicBlock // block performing the type assert - Body *ir.BasicBlock // body of the case - Type types.Type // case type - Binding ir.Value // value bound by this case -} - -// A Switch is a logical high-level control flow operation -// (a multiway branch) discovered by analysis of a CFG containing -// only if/else chains. It is not part of the ir.Instruction set. -// -// One of ConstCases and TypeCases has length >= 2; -// the other is nil. -// -// In a value switch, the list of cases may contain duplicate constants. -// A type switch may contain duplicate types, or types assignable -// to an interface type also in the list. -// TODO(adonovan): eliminate such duplicates. -// -type Switch struct { - Start *ir.BasicBlock // block containing start of if/else chain - X ir.Value // the switch operand - ConstCases []ConstCase // ordered list of constant comparisons - TypeCases []TypeCase // ordered list of type assertions - Default *ir.BasicBlock // successor if all comparisons fail -} - -func (sw *Switch) String() string { - // We represent each block by the String() of its - // first Instruction, e.g. "print(42:int)". - var buf bytes.Buffer - if sw.ConstCases != nil { - fmt.Fprintf(&buf, "switch %s {\n", sw.X.Name()) - for _, c := range sw.ConstCases { - fmt.Fprintf(&buf, "case %s: %s\n", c.Value.Name(), c.Body.Instrs[0]) - } - } else { - fmt.Fprintf(&buf, "switch %s.(type) {\n", sw.X.Name()) - for _, c := range sw.TypeCases { - fmt.Fprintf(&buf, "case %s %s: %s\n", - c.Binding.Name(), c.Type, c.Body.Instrs[0]) - } - } - if sw.Default != nil { - fmt.Fprintf(&buf, "default: %s\n", sw.Default.Instrs[0]) - } - fmt.Fprintf(&buf, "}") - return buf.String() -} - -// Switches examines the control-flow graph of fn and returns the -// set of inferred value and type switches. A value switch tests an -// ir.Value for equality against two or more compile-time constant -// values. Switches involving link-time constants (addresses) are -// ignored. A type switch type-asserts an ir.Value against two or -// more types. -// -// The switches are returned in dominance order. -// -// The resulting switches do not necessarily correspond to uses of the -// 'switch' keyword in the source: for example, a single source-level -// switch statement with non-constant cases may result in zero, one or -// many Switches, one per plural sequence of constant cases. -// Switches may even be inferred from if/else- or goto-based control flow. -// (In general, the control flow constructs of the source program -// cannot be faithfully reproduced from the IR.) -// -func Switches(fn *ir.Function) []Switch { - // Traverse the CFG in dominance order, so we don't - // enter an if/else-chain in the middle. - var switches []Switch - seen := make(map[*ir.BasicBlock]bool) // TODO(adonovan): opt: use ir.blockSet - for _, b := range fn.DomPreorder() { - if x, k := isComparisonBlock(b); x != nil { - // Block b starts a switch. - sw := Switch{Start: b, X: x} - valueSwitch(&sw, k, seen) - if len(sw.ConstCases) > 1 { - switches = append(switches, sw) - } - } - - if y, x, T := isTypeAssertBlock(b); y != nil { - // Block b starts a type switch. - sw := Switch{Start: b, X: x} - typeSwitch(&sw, y, T, seen) - if len(sw.TypeCases) > 1 { - switches = append(switches, sw) - } - } - } - return switches -} - -func isSameX(x1 ir.Value, x2 ir.Value) bool { - if x1 == x2 { - return true - } - if x2, ok := x2.(*ir.Sigma); ok { - return isSameX(x1, x2.X) - } - return false -} - -func valueSwitch(sw *Switch, k *ir.Const, seen map[*ir.BasicBlock]bool) { - b := sw.Start - x := sw.X - for isSameX(sw.X, x) { - if seen[b] { - break - } - seen[b] = true - - sw.ConstCases = append(sw.ConstCases, ConstCase{ - Block: b, - Body: b.Succs[0], - Value: k, - }) - b = b.Succs[1] - n := 0 - for _, instr := range b.Instrs { - switch instr.(type) { - case *ir.If, *ir.BinOp: - n++ - case *ir.Sigma, *ir.Phi, *ir.DebugRef: - default: - n += 1000 - } - } - if n != 2 { - // Block b contains not just 'if x == k' and σ/ϕ nodes, - // so it may have side effects that - // make it unsafe to elide. - break - } - if len(b.Preds) != 1 { - // Block b has multiple predecessors, - // so it cannot be treated as a case. - break - } - x, k = isComparisonBlock(b) - } - sw.Default = b -} - -func typeSwitch(sw *Switch, y ir.Value, T types.Type, seen map[*ir.BasicBlock]bool) { - b := sw.Start - x := sw.X - for isSameX(sw.X, x) { - if seen[b] { - break - } - seen[b] = true - - sw.TypeCases = append(sw.TypeCases, TypeCase{ - Block: b, - Body: b.Succs[0], - Type: T, - Binding: y, - }) - b = b.Succs[1] - n := 0 - for _, instr := range b.Instrs { - switch instr.(type) { - case *ir.TypeAssert, *ir.Extract, *ir.If: - n++ - case *ir.Sigma, *ir.Phi: - default: - n += 1000 - } - } - if n != 4 { - // Block b contains not just - // {TypeAssert; Extract #0; Extract #1; If} - // so it may have side effects that - // make it unsafe to elide. - break - } - if len(b.Preds) != 1 { - // Block b has multiple predecessors, - // so it cannot be treated as a case. - break - } - y, x, T = isTypeAssertBlock(b) - } - sw.Default = b -} - -// isComparisonBlock returns the operands (v, k) if a block ends with -// a comparison v==k, where k is a compile-time constant. -// -func isComparisonBlock(b *ir.BasicBlock) (v ir.Value, k *ir.Const) { - if n := len(b.Instrs); n >= 2 { - if i, ok := b.Instrs[n-1].(*ir.If); ok { - if binop, ok := i.Cond.(*ir.BinOp); ok && binop.Block() == b && binop.Op == token.EQL { - if k, ok := binop.Y.(*ir.Const); ok { - return binop.X, k - } - if k, ok := binop.X.(*ir.Const); ok { - return binop.Y, k - } - } - } - } - return -} - -// isTypeAssertBlock returns the operands (y, x, T) if a block ends with -// a type assertion "if y, ok := x.(T); ok {". -// -func isTypeAssertBlock(b *ir.BasicBlock) (y, x ir.Value, T types.Type) { - if n := len(b.Instrs); n >= 4 { - if i, ok := b.Instrs[n-1].(*ir.If); ok { - if ext1, ok := i.Cond.(*ir.Extract); ok && ext1.Block() == b && ext1.Index == 1 { - if ta, ok := ext1.Tuple.(*ir.TypeAssert); ok && ta.Block() == b { - // hack: relies upon instruction ordering. - if ext0, ok := b.Instrs[n-3].(*ir.Extract); ok { - return ext0, ta.X, ta.AssertedType - } - } - } - } - } - return -} diff --git a/vendor/honnef.co/go/tools/ir/irutil/util.go b/vendor/honnef.co/go/tools/ir/irutil/util.go deleted file mode 100644 index 028584482..000000000 --- a/vendor/honnef.co/go/tools/ir/irutil/util.go +++ /dev/null @@ -1,58 +0,0 @@ -package irutil - -import ( - "honnef.co/go/tools/ir" -) - -func Reachable(from, to *ir.BasicBlock) bool { - if from == to { - return true - } - if from.Dominates(to) { - return true - } - - found := false - Walk(from, func(b *ir.BasicBlock) bool { - if b == to { - found = true - return false - } - return true - }) - return found -} - -func Walk(b *ir.BasicBlock, fn func(*ir.BasicBlock) bool) { - seen := map[*ir.BasicBlock]bool{} - wl := []*ir.BasicBlock{b} - for len(wl) > 0 { - b := wl[len(wl)-1] - wl = wl[:len(wl)-1] - if seen[b] { - continue - } - seen[b] = true - if !fn(b) { - continue - } - wl = append(wl, b.Succs...) - } -} - -func Vararg(x *ir.Slice) ([]ir.Value, bool) { - var out []ir.Value - slice, ok := x.X.(*ir.Alloc) - if !ok || slice.Comment != "varargs" { - return nil, false - } - for _, ref := range *slice.Referrers() { - idx, ok := ref.(*ir.IndexAddr) - if !ok { - continue - } - v := (*idx.Referrers())[0].(*ir.Store).Val - out = append(out, v) - } - return out, true -} diff --git a/vendor/honnef.co/go/tools/ir/irutil/visit.go b/vendor/honnef.co/go/tools/ir/irutil/visit.go deleted file mode 100644 index 576a092d1..000000000 --- a/vendor/honnef.co/go/tools/ir/irutil/visit.go +++ /dev/null @@ -1,79 +0,0 @@ -// Copyright 2013 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package irutil - -import "honnef.co/go/tools/ir" - -// This file defines utilities for visiting the IR of -// a Program. -// -// TODO(adonovan): test coverage. - -// AllFunctions finds and returns the set of functions potentially -// needed by program prog, as determined by a simple linker-style -// reachability algorithm starting from the members and method-sets of -// each package. The result may include anonymous functions and -// synthetic wrappers. -// -// Precondition: all packages are built. -// -func AllFunctions(prog *ir.Program) map[*ir.Function]bool { - visit := visitor{ - prog: prog, - seen: make(map[*ir.Function]bool), - } - visit.program() - return visit.seen -} - -type visitor struct { - prog *ir.Program - seen map[*ir.Function]bool -} - -func (visit *visitor) program() { - for _, pkg := range visit.prog.AllPackages() { - for _, mem := range pkg.Members { - if fn, ok := mem.(*ir.Function); ok { - visit.function(fn) - } - } - } - for _, T := range visit.prog.RuntimeTypes() { - mset := visit.prog.MethodSets.MethodSet(T) - for i, n := 0, mset.Len(); i < n; i++ { - visit.function(visit.prog.MethodValue(mset.At(i))) - } - } -} - -func (visit *visitor) function(fn *ir.Function) { - if !visit.seen[fn] { - visit.seen[fn] = true - var buf [10]*ir.Value // avoid alloc in common case - for _, b := range fn.Blocks { - for _, instr := range b.Instrs { - for _, op := range instr.Operands(buf[:0]) { - if fn, ok := (*op).(*ir.Function); ok { - visit.function(fn) - } - } - } - } - } -} - -// MainPackages returns the subset of the specified packages -// named "main" that define a main function. -// The result may include synthetic "testmain" packages. -func MainPackages(pkgs []*ir.Package) []*ir.Package { - var mains []*ir.Package - for _, pkg := range pkgs { - if pkg.Pkg.Name() == "main" && pkg.Func("main") != nil { - mains = append(mains, pkg) - } - } - return mains -} diff --git a/vendor/honnef.co/go/tools/ir/lift.go b/vendor/honnef.co/go/tools/ir/lift.go deleted file mode 100644 index 1851ce032..000000000 --- a/vendor/honnef.co/go/tools/ir/lift.go +++ /dev/null @@ -1,857 +0,0 @@ -// Copyright 2013 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package ir - -// This file defines the lifting pass which tries to "lift" Alloc -// cells (new/local variables) into SSA registers, replacing loads -// with the dominating stored value, eliminating loads and stores, and -// inserting φ- and σ-nodes as needed. - -// Cited papers and resources: -// -// Ron Cytron et al. 1991. Efficiently computing SSA form... -// http://doi.acm.org/10.1145/115372.115320 -// -// Cooper, Harvey, Kennedy. 2001. A Simple, Fast Dominance Algorithm. -// Software Practice and Experience 2001, 4:1-10. -// http://www.hipersoft.rice.edu/grads/publications/dom14.pdf -// -// Daniel Berlin, llvmdev mailing list, 2012. -// http://lists.cs.uiuc.edu/pipermail/llvmdev/2012-January/046638.html -// (Be sure to expand the whole thread.) -// -// C. Scott Ananian. 1997. The static single information form. -// -// Jeremy Singer. 2006. Static program analysis based on virtual register renaming. - -// TODO(adonovan): opt: there are many optimizations worth evaluating, and -// the conventional wisdom for SSA construction is that a simple -// algorithm well engineered often beats those of better asymptotic -// complexity on all but the most egregious inputs. -// -// Danny Berlin suggests that the Cooper et al. algorithm for -// computing the dominance frontier is superior to Cytron et al. -// Furthermore he recommends that rather than computing the DF for the -// whole function then renaming all alloc cells, it may be cheaper to -// compute the DF for each alloc cell separately and throw it away. -// -// Consider exploiting liveness information to avoid creating dead -// φ-nodes which we then immediately remove. -// -// Also see many other "TODO: opt" suggestions in the code. - -import ( - "fmt" - "go/types" - "os" -) - -// If true, show diagnostic information at each step of lifting. -// Very verbose. -const debugLifting = false - -// domFrontier maps each block to the set of blocks in its dominance -// frontier. The outer slice is conceptually a map keyed by -// Block.Index. The inner slice is conceptually a set, possibly -// containing duplicates. -// -// TODO(adonovan): opt: measure impact of dups; consider a packed bit -// representation, e.g. big.Int, and bitwise parallel operations for -// the union step in the Children loop. -// -// domFrontier's methods mutate the slice's elements but not its -// length, so their receivers needn't be pointers. -// -type domFrontier [][]*BasicBlock - -func (df domFrontier) add(u, v *BasicBlock) { - df[u.Index] = append(df[u.Index], v) -} - -// build builds the dominance frontier df for the dominator tree of -// fn, using the algorithm found in A Simple, Fast Dominance -// Algorithm, Figure 5. -// -// TODO(adonovan): opt: consider Berlin approach, computing pruned SSA -// by pruning the entire IDF computation, rather than merely pruning -// the DF -> IDF step. -func (df domFrontier) build(fn *Function) { - for _, b := range fn.Blocks { - if len(b.Preds) >= 2 { - for _, p := range b.Preds { - runner := p - for runner != b.dom.idom { - df.add(runner, b) - runner = runner.dom.idom - } - } - } - } -} - -func buildDomFrontier(fn *Function) domFrontier { - df := make(domFrontier, len(fn.Blocks)) - df.build(fn) - return df -} - -type postDomFrontier [][]*BasicBlock - -func (rdf postDomFrontier) add(u, v *BasicBlock) { - rdf[u.Index] = append(rdf[u.Index], v) -} - -func (rdf postDomFrontier) build(fn *Function) { - for _, b := range fn.Blocks { - if len(b.Succs) >= 2 { - for _, s := range b.Succs { - runner := s - for runner != b.pdom.idom { - rdf.add(runner, b) - runner = runner.pdom.idom - } - } - } - } -} - -func buildPostDomFrontier(fn *Function) postDomFrontier { - rdf := make(postDomFrontier, len(fn.Blocks)) - rdf.build(fn) - return rdf -} - -func removeInstr(refs []Instruction, instr Instruction) []Instruction { - i := 0 - for _, ref := range refs { - if ref == instr { - continue - } - refs[i] = ref - i++ - } - for j := i; j != len(refs); j++ { - refs[j] = nil // aid GC - } - return refs[:i] -} - -// lift replaces local and new Allocs accessed only with -// load/store by IR registers, inserting φ- and σ-nodes where necessary. -// The result is a program in pruned SSI form. -// -// Preconditions: -// - fn has no dead blocks (blockopt has run). -// - Def/use info (Operands and Referrers) is up-to-date. -// - The dominator tree is up-to-date. -// -func lift(fn *Function) { - // TODO(adonovan): opt: lots of little optimizations may be - // worthwhile here, especially if they cause us to avoid - // buildDomFrontier. For example: - // - // - Alloc never loaded? Eliminate. - // - Alloc never stored? Replace all loads with a zero constant. - // - Alloc stored once? Replace loads with dominating store; - // don't forget that an Alloc is itself an effective store - // of zero. - // - Alloc used only within a single block? - // Use degenerate algorithm avoiding φ-nodes. - // - Consider synergy with scalar replacement of aggregates (SRA). - // e.g. *(&x.f) where x is an Alloc. - // Perhaps we'd get better results if we generated this as x.f - // i.e. Field(x, .f) instead of Load(FieldIndex(x, .f)). - // Unclear. - // - // But we will start with the simplest correct code. - df := buildDomFrontier(fn) - rdf := buildPostDomFrontier(fn) - - if debugLifting { - title := false - for i, blocks := range df { - if blocks != nil { - if !title { - fmt.Fprintf(os.Stderr, "Dominance frontier of %s:\n", fn) - title = true - } - fmt.Fprintf(os.Stderr, "\t%s: %s\n", fn.Blocks[i], blocks) - } - } - } - - newPhis := make(newPhiMap, len(fn.Blocks)) - newSigmas := make(newSigmaMap, len(fn.Blocks)) - - // During this pass we will replace some BasicBlock.Instrs - // (allocs, loads and stores) with nil, keeping a count in - // BasicBlock.gaps. At the end we will reset Instrs to the - // concatenation of all non-dead newPhis and non-nil Instrs - // for the block, reusing the original array if space permits. - - // While we're here, we also eliminate 'rundefers' - // instructions in functions that contain no 'defer' - // instructions. - usesDefer := false - - // Determine which allocs we can lift and number them densely. - // The renaming phase uses this numbering for compact maps. - numAllocs := 0 - for _, b := range fn.Blocks { - b.gaps = 0 - b.rundefers = 0 - for _, instr := range b.Instrs { - switch instr := instr.(type) { - case *Alloc: - index := -1 - if liftAlloc(df, rdf, instr, newPhis, newSigmas) { - index = numAllocs - numAllocs++ - } - instr.index = index - case *Defer: - usesDefer = true - case *RunDefers: - b.rundefers++ - } - } - } - - // renaming maps an alloc (keyed by index) to its replacement - // value. Initially the renaming contains nil, signifying the - // zero constant of the appropriate type; we construct the - // Const lazily at most once on each path through the domtree. - // TODO(adonovan): opt: cache per-function not per subtree. - renaming := make([]Value, numAllocs) - - // Renaming. - rename(fn.Blocks[0], renaming, newPhis, newSigmas) - - simplifyPhis(newPhis) - - // Eliminate dead φ- and σ-nodes. - markLiveNodes(fn.Blocks, newPhis, newSigmas) - - // Prepend remaining live φ-nodes to each block and possibly kill rundefers. - for _, b := range fn.Blocks { - nps := newPhis[b.Index] - head := make([]Instruction, 0, len(nps)) - for _, pred := range b.Preds { - nss := newSigmas[pred.Index] - idx := pred.succIndex(b) - for _, newSigma := range nss { - if sigma := newSigma.sigmas[idx]; sigma.live { - head = append(head, sigma) - - // we didn't populate referrers before, as most - // sigma nodes will be killed - if refs := sigma.X.Referrers(); refs != nil { - *refs = append(*refs, sigma) - } - } else { - sigma.block = nil - } - } - } - for _, np := range nps { - if np.phi.live { - head = append(head, np.phi) - } else { - for _, edge := range np.phi.Edges { - if refs := edge.Referrers(); refs != nil { - *refs = removeInstr(*refs, np.phi) - } - } - np.phi.block = nil - } - } - - rundefersToKill := b.rundefers - if usesDefer { - rundefersToKill = 0 - } - - j := len(head) - if j+b.gaps+rundefersToKill == 0 { - continue // fast path: no new phis or gaps - } - - // Compact nps + non-nil Instrs into a new slice. - dst := make([]Instruction, len(b.Instrs)+j-b.gaps-rundefersToKill) - copy(dst, head) - for _, instr := range b.Instrs { - if instr == nil { - continue - } - if !usesDefer { - if _, ok := instr.(*RunDefers); ok { - continue - } - } - dst[j] = instr - j++ - } - b.Instrs = dst - } - - // Remove any fn.Locals that were lifted. - j := 0 - for _, l := range fn.Locals { - if l.index < 0 { - fn.Locals[j] = l - j++ - } - } - // Nil out fn.Locals[j:] to aid GC. - for i := j; i < len(fn.Locals); i++ { - fn.Locals[i] = nil - } - fn.Locals = fn.Locals[:j] -} - -func hasDirectReferrer(instr Instruction) bool { - for _, instr := range *instr.Referrers() { - switch instr.(type) { - case *Phi, *Sigma: - // ignore - default: - return true - } - } - return false -} - -func markLiveNodes(blocks []*BasicBlock, newPhis newPhiMap, newSigmas newSigmaMap) { - // Phi and sigma nodes are considered live if a non-phi, non-sigma - // node uses them. Once we find a node that is live, we mark all - // of its operands as used, too. - for _, npList := range newPhis { - for _, np := range npList { - phi := np.phi - if !phi.live && hasDirectReferrer(phi) { - markLivePhi(phi) - } - } - } - for _, npList := range newSigmas { - for _, np := range npList { - for _, sigma := range np.sigmas { - if !sigma.live && hasDirectReferrer(sigma) { - markLiveSigma(sigma) - } - } - } - } - // Existing φ-nodes due to && and || operators - // are all considered live (see Go issue 19622). - for _, b := range blocks { - for _, phi := range b.phis() { - markLivePhi(phi.(*Phi)) - } - } -} - -func markLivePhi(phi *Phi) { - phi.live = true - for _, rand := range phi.Edges { - switch rand := rand.(type) { - case *Phi: - if !rand.live { - markLivePhi(rand) - } - case *Sigma: - if !rand.live { - markLiveSigma(rand) - } - } - } -} - -func markLiveSigma(sigma *Sigma) { - sigma.live = true - switch rand := sigma.X.(type) { - case *Phi: - if !rand.live { - markLivePhi(rand) - } - case *Sigma: - if !rand.live { - markLiveSigma(rand) - } - } -} - -// simplifyPhis replaces trivial phis with non-phi alternatives. Phi -// nodes where all edges are identical, or consist of only the phi -// itself and one other value, may be replaced with the value. -func simplifyPhis(newPhis newPhiMap) { - // find all phis that are trivial and can be replaced with a - // non-phi value. run until we reach a fixpoint, because replacing - // a phi may make other phis trivial. - for changed := true; changed; { - changed = false - for _, npList := range newPhis { - for _, np := range npList { - if np.phi.live { - // we're reusing 'live' to mean 'dead' in the context of simplifyPhis - continue - } - if r, ok := isUselessPhi(np.phi); ok { - // useless phi, replace its uses with the - // replacement value. the dead phi pass will clean - // up the phi afterwards. - replaceAll(np.phi, r) - np.phi.live = true - changed = true - } - } - } - } - - for _, npList := range newPhis { - for _, np := range npList { - np.phi.live = false - } - } -} - -type BlockSet struct { - idx int - values []bool - count int -} - -func NewBlockSet(size int) *BlockSet { - return &BlockSet{values: make([]bool, size)} -} - -func (s *BlockSet) Set(s2 *BlockSet) { - copy(s.values, s2.values) - s.count = 0 - for _, v := range s.values { - if v { - s.count++ - } - } -} - -func (s *BlockSet) Num() int { - return s.count -} - -func (s *BlockSet) Has(b *BasicBlock) bool { - if b.Index >= len(s.values) { - return false - } - return s.values[b.Index] -} - -// add adds b to the set and returns true if the set changed. -func (s *BlockSet) Add(b *BasicBlock) bool { - if s.values[b.Index] { - return false - } - s.count++ - s.values[b.Index] = true - s.idx = b.Index - - return true -} - -func (s *BlockSet) Clear() { - for j := range s.values { - s.values[j] = false - } - s.count = 0 -} - -// take removes an arbitrary element from a set s and -// returns its index, or returns -1 if empty. -func (s *BlockSet) Take() int { - // [i, end] - for i := s.idx; i < len(s.values); i++ { - if s.values[i] { - s.values[i] = false - s.idx = i - s.count-- - return i - } - } - - // [start, i) - for i := 0; i < s.idx; i++ { - if s.values[i] { - s.values[i] = false - s.idx = i - s.count-- - return i - } - } - - return -1 -} - -// newPhi is a pair of a newly introduced φ-node and the lifted Alloc -// it replaces. -type newPhi struct { - phi *Phi - alloc *Alloc -} - -type newSigma struct { - alloc *Alloc - sigmas []*Sigma -} - -// newPhiMap records for each basic block, the set of newPhis that -// must be prepended to the block. -type newPhiMap [][]newPhi -type newSigmaMap [][]newSigma - -// liftAlloc determines whether alloc can be lifted into registers, -// and if so, it populates newPhis with all the φ-nodes it may require -// and returns true. -func liftAlloc(df domFrontier, rdf postDomFrontier, alloc *Alloc, newPhis newPhiMap, newSigmas newSigmaMap) bool { - fn := alloc.Parent() - - defblocks := fn.blockset(0) - useblocks := fn.blockset(1) - Aphi := fn.blockset(2) - Asigma := fn.blockset(3) - W := fn.blockset(4) - - // Don't lift aggregates into registers, because we don't have - // a way to express their zero-constants. - switch deref(alloc.Type()).Underlying().(type) { - case *types.Array, *types.Struct: - return false - } - - // Don't lift named return values in functions that defer - // calls that may recover from panic. - if fn.hasDefer { - for _, nr := range fn.namedResults { - if nr == alloc { - return false - } - } - } - - // Compute defblocks, the set of blocks containing a - // definition of the alloc cell. - for _, instr := range *alloc.Referrers() { - // Bail out if we discover the alloc is not liftable; - // the only operations permitted to use the alloc are - // loads/stores into the cell, and DebugRef. - switch instr := instr.(type) { - case *Store: - if instr.Val == alloc { - return false // address used as value - } - if instr.Addr != alloc { - panic("Alloc.Referrers is inconsistent") - } - defblocks.Add(instr.Block()) - case *Load: - if instr.X != alloc { - panic("Alloc.Referrers is inconsistent") - } - useblocks.Add(instr.Block()) - for _, ref := range *instr.Referrers() { - useblocks.Add(ref.Block()) - } - case *DebugRef: - // ok - default: - return false // some other instruction - } - } - // The Alloc itself counts as a (zero) definition of the cell. - defblocks.Add(alloc.Block()) - - if debugLifting { - fmt.Fprintln(os.Stderr, "\tlifting ", alloc, alloc.Name()) - } - - // Φ-insertion. - // - // What follows is the body of the main loop of the insert-φ - // function described by Cytron et al, but instead of using - // counter tricks, we just reset the 'hasAlready' and 'work' - // sets each iteration. These are bitmaps so it's pretty cheap. - - // Initialize W and work to defblocks. - - for change := true; change; { - change = false - { - // Traverse iterated dominance frontier, inserting φ-nodes. - W.Set(defblocks) - - for i := W.Take(); i != -1; i = W.Take() { - n := fn.Blocks[i] - for _, y := range df[n.Index] { - if Aphi.Add(y) { - // Create φ-node. - // It will be prepended to v.Instrs later, if needed. - phi := &Phi{ - Edges: make([]Value, len(y.Preds)), - Comment: alloc.Comment, - } - - phi.source = alloc.source - phi.setType(deref(alloc.Type())) - phi.block = y - if debugLifting { - fmt.Fprintf(os.Stderr, "\tplace %s = %s at block %s\n", phi.Name(), phi, y) - } - newPhis[y.Index] = append(newPhis[y.Index], newPhi{phi, alloc}) - - for _, p := range y.Preds { - useblocks.Add(p) - } - change = true - if defblocks.Add(y) { - W.Add(y) - } - } - } - } - } - - { - W.Set(useblocks) - for i := W.Take(); i != -1; i = W.Take() { - n := fn.Blocks[i] - for _, y := range rdf[n.Index] { - // OPT(dh): if we had liveness information, we - // could avoid adding sigma nodes for already dead - // variables. but would calculating liveness - // information be cheaper than pruning dead sigmas - // later? - if Asigma.Add(y) { - sigmas := make([]*Sigma, 0, len(y.Succs)) - for _, succ := range y.Succs { - sigma := &Sigma{ - From: y, - X: alloc, - Comment: alloc.Comment, - } - sigma.source = alloc.source - sigma.setType(deref(alloc.Type())) - sigma.block = succ - sigmas = append(sigmas, sigma) - } - - newSigmas[y.Index] = append(newSigmas[y.Index], newSigma{alloc, sigmas}) - for _, s := range y.Succs { - defblocks.Add(s) - } - change = true - if useblocks.Add(y) { - W.Add(y) - } - } - } - } - } - } - - return true -} - -// replaceAll replaces all intraprocedural uses of x with y, -// updating x.Referrers and y.Referrers. -// Precondition: x.Referrers() != nil, i.e. x must be local to some function. -// -func replaceAll(x, y Value) { - var rands []*Value - pxrefs := x.Referrers() - pyrefs := y.Referrers() - for _, instr := range *pxrefs { - rands = instr.Operands(rands[:0]) // recycle storage - for _, rand := range rands { - if *rand != nil { - if *rand == x { - *rand = y - } - } - } - if pyrefs != nil { - *pyrefs = append(*pyrefs, instr) // dups ok - } - } - *pxrefs = nil // x is now unreferenced -} - -// renamed returns the value to which alloc is being renamed, -// constructing it lazily if it's the implicit zero initialization. -// -func renamed(fn *Function, renaming []Value, alloc *Alloc) Value { - v := renaming[alloc.index] - if v == nil { - v = emitConst(fn, zeroConst(deref(alloc.Type()))) - renaming[alloc.index] = v - } - return v -} - -// rename implements the Cytron et al-based SSI renaming algorithm, a -// preorder traversal of the dominator tree replacing all loads of -// Alloc cells with the value stored to that cell by the dominating -// store instruction. -// -// renaming is a map from *Alloc (keyed by index number) to its -// dominating stored value; newPhis[x] is the set of new φ-nodes to be -// prepended to block x. -// -func rename(u *BasicBlock, renaming []Value, newPhis newPhiMap, newSigmas newSigmaMap) { - // Each φ-node becomes the new name for its associated Alloc. - for _, np := range newPhis[u.Index] { - phi := np.phi - alloc := np.alloc - renaming[alloc.index] = phi - } - - // Rename loads and stores of allocs. - for i, instr := range u.Instrs { - switch instr := instr.(type) { - case *Alloc: - if instr.index >= 0 { // store of zero to Alloc cell - // Replace dominated loads by the zero value. - renaming[instr.index] = nil - if debugLifting { - fmt.Fprintf(os.Stderr, "\tkill alloc %s\n", instr) - } - // Delete the Alloc. - u.Instrs[i] = nil - u.gaps++ - } - - case *Store: - if alloc, ok := instr.Addr.(*Alloc); ok && alloc.index >= 0 { // store to Alloc cell - // Replace dominated loads by the stored value. - renaming[alloc.index] = instr.Val - if debugLifting { - fmt.Fprintf(os.Stderr, "\tkill store %s; new value: %s\n", - instr, instr.Val.Name()) - } - if refs := instr.Addr.Referrers(); refs != nil { - *refs = removeInstr(*refs, instr) - } - if refs := instr.Val.Referrers(); refs != nil { - *refs = removeInstr(*refs, instr) - } - // Delete the Store. - u.Instrs[i] = nil - u.gaps++ - } - - case *Load: - if alloc, ok := instr.X.(*Alloc); ok && alloc.index >= 0 { // load of Alloc cell - // In theory, we wouldn't be able to replace loads - // directly, because a loaded value could be used in - // different branches, in which case it should be - // replaced with different sigma nodes. But we can't - // simply defer replacement, either, because then - // later stores might incorrectly affect this load. - // - // To avoid doing renaming on _all_ values (instead of - // just loads and stores like we're doing), we make - // sure during code generation that each load is only - // used in one block. For example, in constant switch - // statements, where the tag is only evaluated once, - // we store it in a temporary and load it for each - // comparison, so that we have individual loads to - // replace. - newval := renamed(u.Parent(), renaming, alloc) - if debugLifting { - fmt.Fprintf(os.Stderr, "\tupdate load %s = %s with %s\n", - instr.Name(), instr, newval) - } - replaceAll(instr, newval) - u.Instrs[i] = nil - u.gaps++ - } - - case *DebugRef: - if x, ok := instr.X.(*Alloc); ok && x.index >= 0 { - if instr.IsAddr { - instr.X = renamed(u.Parent(), renaming, x) - instr.IsAddr = false - - // Add DebugRef to instr.X's referrers. - if refs := instr.X.Referrers(); refs != nil { - *refs = append(*refs, instr) - } - } else { - // A source expression denotes the address - // of an Alloc that was optimized away. - instr.X = nil - - // Delete the DebugRef. - u.Instrs[i] = nil - u.gaps++ - } - } - } - } - - // update all outgoing sigma nodes with the dominating store - for _, sigmas := range newSigmas[u.Index] { - for _, sigma := range sigmas.sigmas { - sigma.X = renamed(u.Parent(), renaming, sigmas.alloc) - } - } - - // For each φ-node in a CFG successor, rename the edge. - for succi, v := range u.Succs { - phis := newPhis[v.Index] - if len(phis) == 0 { - continue - } - i := v.predIndex(u) - for _, np := range phis { - phi := np.phi - alloc := np.alloc - // if there's a sigma node, use it, else use the dominating value - var newval Value - for _, sigmas := range newSigmas[u.Index] { - if sigmas.alloc == alloc { - newval = sigmas.sigmas[succi] - break - } - } - if newval == nil { - newval = renamed(u.Parent(), renaming, alloc) - } - if debugLifting { - fmt.Fprintf(os.Stderr, "\tsetphi %s edge %s -> %s (#%d) (alloc=%s) := %s\n", - phi.Name(), u, v, i, alloc.Name(), newval.Name()) - } - phi.Edges[i] = newval - if prefs := newval.Referrers(); prefs != nil { - *prefs = append(*prefs, phi) - } - } - } - - // Continue depth-first recursion over domtree, pushing a - // fresh copy of the renaming map for each subtree. - r := make([]Value, len(renaming)) - for _, v := range u.dom.children { - // XXX add debugging - copy(r, renaming) - - // on entry to a block, the incoming sigma nodes become the new values for their alloc - if idx := u.succIndex(v); idx != -1 { - for _, sigma := range newSigmas[u.Index] { - r[sigma.alloc.index] = sigma.sigmas[idx] - } - } - rename(v, r, newPhis, newSigmas) - } - -} diff --git a/vendor/honnef.co/go/tools/ir/lvalue.go b/vendor/honnef.co/go/tools/ir/lvalue.go deleted file mode 100644 index f676a1f7a..000000000 --- a/vendor/honnef.co/go/tools/ir/lvalue.go +++ /dev/null @@ -1,116 +0,0 @@ -// Copyright 2013 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package ir - -// lvalues are the union of addressable expressions and map-index -// expressions. - -import ( - "go/ast" - "go/types" -) - -// An lvalue represents an assignable location that may appear on the -// left-hand side of an assignment. This is a generalization of a -// pointer to permit updates to elements of maps. -// -type lvalue interface { - store(fn *Function, v Value, source ast.Node) // stores v into the location - load(fn *Function, source ast.Node) Value // loads the contents of the location - address(fn *Function) Value // address of the location - typ() types.Type // returns the type of the location -} - -// An address is an lvalue represented by a true pointer. -type address struct { - addr Value - expr ast.Expr // source syntax of the value (not address) [debug mode] -} - -func (a *address) load(fn *Function, source ast.Node) Value { - return emitLoad(fn, a.addr, source) -} - -func (a *address) store(fn *Function, v Value, source ast.Node) { - store := emitStore(fn, a.addr, v, source) - if a.expr != nil { - // store.Val is v, converted for assignability. - emitDebugRef(fn, a.expr, store.Val, false) - } -} - -func (a *address) address(fn *Function) Value { - if a.expr != nil { - emitDebugRef(fn, a.expr, a.addr, true) - } - return a.addr -} - -func (a *address) typ() types.Type { - return deref(a.addr.Type()) -} - -// An element is an lvalue represented by m[k], the location of an -// element of a map. These locations are not addressable -// since pointers cannot be formed from them, but they do support -// load() and store(). -// -type element struct { - m, k Value // map - t types.Type // map element type -} - -func (e *element) load(fn *Function, source ast.Node) Value { - l := &MapLookup{ - X: e.m, - Index: e.k, - } - l.setType(e.t) - return fn.emit(l, source) -} - -func (e *element) store(fn *Function, v Value, source ast.Node) { - up := &MapUpdate{ - Map: e.m, - Key: e.k, - Value: emitConv(fn, v, e.t, source), - } - fn.emit(up, source) -} - -func (e *element) address(fn *Function) Value { - panic("map elements are not addressable") -} - -func (e *element) typ() types.Type { - return e.t -} - -// A blank is a dummy variable whose name is "_". -// It is not reified: loads are illegal and stores are ignored. -// -type blank struct{} - -func (bl blank) load(fn *Function, source ast.Node) Value { - panic("blank.load is illegal") -} - -func (bl blank) store(fn *Function, v Value, source ast.Node) { - s := &BlankStore{ - Val: v, - } - fn.emit(s, source) -} - -func (bl blank) address(fn *Function) Value { - panic("blank var is not addressable") -} - -func (bl blank) typ() types.Type { - // This should be the type of the blank Ident; the typechecker - // doesn't provide this yet, but fortunately, we don't need it - // yet either. - panic("blank.typ is unimplemented") -} diff --git a/vendor/honnef.co/go/tools/ir/methods.go b/vendor/honnef.co/go/tools/ir/methods.go deleted file mode 100644 index 517f448b8..000000000 --- a/vendor/honnef.co/go/tools/ir/methods.go +++ /dev/null @@ -1,239 +0,0 @@ -// Copyright 2013 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package ir - -// This file defines utilities for population of method sets. - -import ( - "fmt" - "go/types" -) - -// MethodValue returns the Function implementing method sel, building -// wrapper methods on demand. It returns nil if sel denotes an -// abstract (interface) method. -// -// Precondition: sel.Kind() == MethodVal. -// -// Thread-safe. -// -// EXCLUSIVE_LOCKS_ACQUIRED(prog.methodsMu) -// -func (prog *Program) MethodValue(sel *types.Selection) *Function { - if sel.Kind() != types.MethodVal { - panic(fmt.Sprintf("MethodValue(%s) kind != MethodVal", sel)) - } - T := sel.Recv() - if isInterface(T) { - return nil // abstract method - } - if prog.mode&LogSource != 0 { - defer logStack("MethodValue %s %v", T, sel)() - } - - prog.methodsMu.Lock() - defer prog.methodsMu.Unlock() - - return prog.addMethod(prog.createMethodSet(T), sel) -} - -// LookupMethod returns the implementation of the method of type T -// identified by (pkg, name). It returns nil if the method exists but -// is abstract, and panics if T has no such method. -// -func (prog *Program) LookupMethod(T types.Type, pkg *types.Package, name string) *Function { - sel := prog.MethodSets.MethodSet(T).Lookup(pkg, name) - if sel == nil { - panic(fmt.Sprintf("%s has no method %s", T, types.Id(pkg, name))) - } - return prog.MethodValue(sel) -} - -// methodSet contains the (concrete) methods of a non-interface type. -type methodSet struct { - mapping map[string]*Function // populated lazily - complete bool // mapping contains all methods -} - -// Precondition: !isInterface(T). -// EXCLUSIVE_LOCKS_REQUIRED(prog.methodsMu) -func (prog *Program) createMethodSet(T types.Type) *methodSet { - mset, ok := prog.methodSets.At(T).(*methodSet) - if !ok { - mset = &methodSet{mapping: make(map[string]*Function)} - prog.methodSets.Set(T, mset) - } - return mset -} - -// EXCLUSIVE_LOCKS_REQUIRED(prog.methodsMu) -func (prog *Program) addMethod(mset *methodSet, sel *types.Selection) *Function { - if sel.Kind() == types.MethodExpr { - panic(sel) - } - id := sel.Obj().Id() - fn := mset.mapping[id] - if fn == nil { - obj := sel.Obj().(*types.Func) - - needsPromotion := len(sel.Index()) > 1 - needsIndirection := !isPointer(recvType(obj)) && isPointer(sel.Recv()) - if needsPromotion || needsIndirection { - fn = makeWrapper(prog, sel) - } else { - fn = prog.declaredFunc(obj) - } - if fn.Signature.Recv() == nil { - panic(fn) // missing receiver - } - mset.mapping[id] = fn - } - return fn -} - -// RuntimeTypes returns a new unordered slice containing all -// concrete types in the program for which a complete (non-empty) -// method set is required at run-time. -// -// Thread-safe. -// -// EXCLUSIVE_LOCKS_ACQUIRED(prog.methodsMu) -// -func (prog *Program) RuntimeTypes() []types.Type { - prog.methodsMu.Lock() - defer prog.methodsMu.Unlock() - - var res []types.Type - prog.methodSets.Iterate(func(T types.Type, v interface{}) { - if v.(*methodSet).complete { - res = append(res, T) - } - }) - return res -} - -// declaredFunc returns the concrete function/method denoted by obj. -// Panic ensues if there is none. -// -func (prog *Program) declaredFunc(obj *types.Func) *Function { - if v := prog.packageLevelValue(obj); v != nil { - return v.(*Function) - } - panic("no concrete method: " + obj.String()) -} - -// needMethodsOf ensures that runtime type information (including the -// complete method set) is available for the specified type T and all -// its subcomponents. -// -// needMethodsOf must be called for at least every type that is an -// operand of some MakeInterface instruction, and for the type of -// every exported package member. -// -// Precondition: T is not a method signature (*Signature with Recv()!=nil). -// -// Thread-safe. (Called via emitConv from multiple builder goroutines.) -// -// TODO(adonovan): make this faster. It accounts for 20% of SSA build time. -// -// EXCLUSIVE_LOCKS_ACQUIRED(prog.methodsMu) -// -func (prog *Program) needMethodsOf(T types.Type) { - prog.methodsMu.Lock() - prog.needMethods(T, false) - prog.methodsMu.Unlock() -} - -// Precondition: T is not a method signature (*Signature with Recv()!=nil). -// Recursive case: skip => don't create methods for T. -// -// EXCLUSIVE_LOCKS_REQUIRED(prog.methodsMu) -// -func (prog *Program) needMethods(T types.Type, skip bool) { - // Each package maintains its own set of types it has visited. - if prevSkip, ok := prog.runtimeTypes.At(T).(bool); ok { - // needMethods(T) was previously called - if !prevSkip || skip { - return // already seen, with same or false 'skip' value - } - } - prog.runtimeTypes.Set(T, skip) - - tmset := prog.MethodSets.MethodSet(T) - - if !skip && !isInterface(T) && tmset.Len() > 0 { - // Create methods of T. - mset := prog.createMethodSet(T) - if !mset.complete { - mset.complete = true - n := tmset.Len() - for i := 0; i < n; i++ { - prog.addMethod(mset, tmset.At(i)) - } - } - } - - // Recursion over signatures of each method. - for i := 0; i < tmset.Len(); i++ { - sig := tmset.At(i).Type().(*types.Signature) - prog.needMethods(sig.Params(), false) - prog.needMethods(sig.Results(), false) - } - - switch t := T.(type) { - case *types.Basic: - // nop - - case *types.Interface: - // nop---handled by recursion over method set. - - case *types.Pointer: - prog.needMethods(t.Elem(), false) - - case *types.Slice: - prog.needMethods(t.Elem(), false) - - case *types.Chan: - prog.needMethods(t.Elem(), false) - - case *types.Map: - prog.needMethods(t.Key(), false) - prog.needMethods(t.Elem(), false) - - case *types.Signature: - if t.Recv() != nil { - panic(fmt.Sprintf("Signature %s has Recv %s", t, t.Recv())) - } - prog.needMethods(t.Params(), false) - prog.needMethods(t.Results(), false) - - case *types.Named: - // A pointer-to-named type can be derived from a named - // type via reflection. It may have methods too. - prog.needMethods(types.NewPointer(T), false) - - // Consider 'type T struct{S}' where S has methods. - // Reflection provides no way to get from T to struct{S}, - // only to S, so the method set of struct{S} is unwanted, - // so set 'skip' flag during recursion. - prog.needMethods(t.Underlying(), true) - - case *types.Array: - prog.needMethods(t.Elem(), false) - - case *types.Struct: - for i, n := 0, t.NumFields(); i < n; i++ { - prog.needMethods(t.Field(i).Type(), false) - } - - case *types.Tuple: - for i, n := 0, t.Len(); i < n; i++ { - prog.needMethods(t.At(i).Type(), false) - } - - default: - panic(T) - } -} diff --git a/vendor/honnef.co/go/tools/ir/mode.go b/vendor/honnef.co/go/tools/ir/mode.go deleted file mode 100644 index da548fdbb..000000000 --- a/vendor/honnef.co/go/tools/ir/mode.go +++ /dev/null @@ -1,98 +0,0 @@ -// Copyright 2015 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package ir - -// This file defines the BuilderMode type and its command-line flag. - -import ( - "bytes" - "fmt" -) - -// BuilderMode is a bitmask of options for diagnostics and checking. -// -// *BuilderMode satisfies the flag.Value interface. Example: -// -// var mode = ir.BuilderMode(0) -// func init() { flag.Var(&mode, "build", ir.BuilderModeDoc) } -// -type BuilderMode uint - -const ( - PrintPackages BuilderMode = 1 << iota // Print package inventory to stdout - PrintFunctions // Print function IR code to stdout - PrintSource // Print source code when printing function IR - LogSource // Log source locations as IR builder progresses - SanityCheckFunctions // Perform sanity checking of function bodies - NaiveForm // Build naïve IR form: don't replace local loads/stores with registers - GlobalDebug // Enable debug info for all packages -) - -const BuilderModeDoc = `Options controlling the IR builder. -The value is a sequence of zero or more of these letters: -C perform sanity [C]hecking of the IR form. -D include [D]ebug info for every function. -P print [P]ackage inventory. -F print [F]unction IR code. -A print [A]ST nodes responsible for IR instructions -S log [S]ource locations as IR builder progresses. -N build [N]aive IR form: don't replace local loads/stores with registers. -` - -func (m BuilderMode) String() string { - var buf bytes.Buffer - if m&GlobalDebug != 0 { - buf.WriteByte('D') - } - if m&PrintPackages != 0 { - buf.WriteByte('P') - } - if m&PrintFunctions != 0 { - buf.WriteByte('F') - } - if m&PrintSource != 0 { - buf.WriteByte('A') - } - if m&LogSource != 0 { - buf.WriteByte('S') - } - if m&SanityCheckFunctions != 0 { - buf.WriteByte('C') - } - if m&NaiveForm != 0 { - buf.WriteByte('N') - } - return buf.String() -} - -// Set parses the flag characters in s and updates *m. -func (m *BuilderMode) Set(s string) error { - var mode BuilderMode - for _, c := range s { - switch c { - case 'D': - mode |= GlobalDebug - case 'P': - mode |= PrintPackages - case 'F': - mode |= PrintFunctions - case 'A': - mode |= PrintSource - case 'S': - mode |= LogSource - case 'C': - mode |= SanityCheckFunctions - case 'N': - mode |= NaiveForm - default: - return fmt.Errorf("unknown BuilderMode option: %q", c) - } - } - *m = mode - return nil -} - -// Get returns m. -func (m BuilderMode) Get() interface{} { return m } diff --git a/vendor/honnef.co/go/tools/ir/print.go b/vendor/honnef.co/go/tools/ir/print.go deleted file mode 100644 index 776eb5ece..000000000 --- a/vendor/honnef.co/go/tools/ir/print.go +++ /dev/null @@ -1,478 +0,0 @@ -// Copyright 2013 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package ir - -// This file implements the String() methods for all Value and -// Instruction types. - -import ( - "bytes" - "fmt" - "go/types" - "io" - "reflect" - "sort" - - "golang.org/x/tools/go/types/typeutil" -) - -// relName returns the name of v relative to i. -// In most cases, this is identical to v.Name(), but references to -// Functions (including methods) and Globals use RelString and -// all types are displayed with relType, so that only cross-package -// references are package-qualified. -// -func relName(v Value, i Instruction) string { - if v == nil { - return "" - } - var from *types.Package - if i != nil { - from = i.Parent().pkg() - } - switch v := v.(type) { - case Member: // *Function or *Global - return v.RelString(from) - } - return v.Name() -} - -func relType(t types.Type, from *types.Package) string { - return types.TypeString(t, types.RelativeTo(from)) -} - -func relString(m Member, from *types.Package) string { - // NB: not all globals have an Object (e.g. init$guard), - // so use Package().Object not Object.Package(). - if pkg := m.Package().Pkg; pkg != nil && pkg != from { - return fmt.Sprintf("%s.%s", pkg.Path(), m.Name()) - } - return m.Name() -} - -// Value.String() -// -// This method is provided only for debugging. -// It never appears in disassembly, which uses Value.Name(). - -func (v *Parameter) String() string { - from := v.Parent().pkg() - return fmt.Sprintf("Parameter <%s> {%s}", relType(v.Type(), from), v.name) -} - -func (v *FreeVar) String() string { - from := v.Parent().pkg() - return fmt.Sprintf("FreeVar <%s> %s", relType(v.Type(), from), v.Name()) -} - -func (v *Builtin) String() string { - return fmt.Sprintf("Builtin %s", v.Name()) -} - -// Instruction.String() - -func (v *Alloc) String() string { - from := v.Parent().pkg() - storage := "Stack" - if v.Heap { - storage = "Heap" - } - return fmt.Sprintf("%sAlloc <%s> (%s)", storage, relType(v.Type(), from), v.Comment) -} - -func (v *Sigma) String() string { - from := v.Parent().pkg() - s := fmt.Sprintf("Sigma <%s> [b%d] %s", relType(v.Type(), from), v.From.Index, v.X.Name()) - if v.Comment != "" { - s += fmt.Sprintf(" (%s)", v.Comment) - } - return s -} - -func (v *Phi) String() string { - var b bytes.Buffer - fmt.Fprintf(&b, "Phi <%s>", v.Type()) - for i, edge := range v.Edges { - b.WriteString(" ") - // Be robust against malformed CFG. - if v.block == nil { - b.WriteString("??") - continue - } - block := -1 - if i < len(v.block.Preds) { - block = v.block.Preds[i].Index - } - fmt.Fprintf(&b, "%d:", block) - edgeVal := "" // be robust - if edge != nil { - edgeVal = relName(edge, v) - } - b.WriteString(edgeVal) - } - if v.Comment != "" { - fmt.Fprintf(&b, " (%s)", v.Comment) - } - return b.String() -} - -func printCall(v *CallCommon, prefix string, instr Instruction) string { - var b bytes.Buffer - if !v.IsInvoke() { - if value, ok := instr.(Value); ok { - fmt.Fprintf(&b, "%s <%s> %s", prefix, relType(value.Type(), instr.Parent().pkg()), relName(v.Value, instr)) - } else { - fmt.Fprintf(&b, "%s %s", prefix, relName(v.Value, instr)) - } - } else { - if value, ok := instr.(Value); ok { - fmt.Fprintf(&b, "%sInvoke <%s> %s.%s", prefix, relType(value.Type(), instr.Parent().pkg()), relName(v.Value, instr), v.Method.Name()) - } else { - fmt.Fprintf(&b, "%sInvoke %s.%s", prefix, relName(v.Value, instr), v.Method.Name()) - } - } - for _, arg := range v.Args { - b.WriteString(" ") - b.WriteString(relName(arg, instr)) - } - return b.String() -} - -func (c *CallCommon) String() string { - return printCall(c, "", nil) -} - -func (v *Call) String() string { - return printCall(&v.Call, "Call", v) -} - -func (v *BinOp) String() string { - return fmt.Sprintf("BinOp <%s> {%s} %s %s", relType(v.Type(), v.Parent().pkg()), v.Op.String(), relName(v.X, v), relName(v.Y, v)) -} - -func (v *UnOp) String() string { - return fmt.Sprintf("UnOp <%s> {%s} %s", relType(v.Type(), v.Parent().pkg()), v.Op.String(), relName(v.X, v)) -} - -func (v *Load) String() string { - return fmt.Sprintf("Load <%s> %s", relType(v.Type(), v.Parent().pkg()), relName(v.X, v)) -} - -func printConv(prefix string, v, x Value) string { - from := v.Parent().pkg() - return fmt.Sprintf("%s <%s> %s", - prefix, - relType(v.Type(), from), - relName(x, v.(Instruction))) -} - -func (v *ChangeType) String() string { return printConv("ChangeType", v, v.X) } -func (v *Convert) String() string { return printConv("Convert", v, v.X) } -func (v *ChangeInterface) String() string { return printConv("ChangeInterface", v, v.X) } -func (v *MakeInterface) String() string { return printConv("MakeInterface", v, v.X) } - -func (v *MakeClosure) String() string { - from := v.Parent().pkg() - var b bytes.Buffer - fmt.Fprintf(&b, "MakeClosure <%s> %s", relType(v.Type(), from), relName(v.Fn, v)) - if v.Bindings != nil { - for _, c := range v.Bindings { - b.WriteString(" ") - b.WriteString(relName(c, v)) - } - } - return b.String() -} - -func (v *MakeSlice) String() string { - from := v.Parent().pkg() - return fmt.Sprintf("MakeSlice <%s> %s %s", - relType(v.Type(), from), - relName(v.Len, v), - relName(v.Cap, v)) -} - -func (v *Slice) String() string { - from := v.Parent().pkg() - return fmt.Sprintf("Slice <%s> %s %s %s %s", - relType(v.Type(), from), relName(v.X, v), relName(v.Low, v), relName(v.High, v), relName(v.Max, v)) -} - -func (v *MakeMap) String() string { - res := "" - if v.Reserve != nil { - res = relName(v.Reserve, v) - } - from := v.Parent().pkg() - return fmt.Sprintf("MakeMap <%s> %s", relType(v.Type(), from), res) -} - -func (v *MakeChan) String() string { - from := v.Parent().pkg() - return fmt.Sprintf("MakeChan <%s> %s", relType(v.Type(), from), relName(v.Size, v)) -} - -func (v *FieldAddr) String() string { - from := v.Parent().pkg() - st := deref(v.X.Type()).Underlying().(*types.Struct) - // Be robust against a bad index. - name := "?" - if 0 <= v.Field && v.Field < st.NumFields() { - name = st.Field(v.Field).Name() - } - return fmt.Sprintf("FieldAddr <%s> [%d] (%s) %s", relType(v.Type(), from), v.Field, name, relName(v.X, v)) -} - -func (v *Field) String() string { - st := v.X.Type().Underlying().(*types.Struct) - // Be robust against a bad index. - name := "?" - if 0 <= v.Field && v.Field < st.NumFields() { - name = st.Field(v.Field).Name() - } - from := v.Parent().pkg() - return fmt.Sprintf("Field <%s> [%d] (%s) %s", relType(v.Type(), from), v.Field, name, relName(v.X, v)) -} - -func (v *IndexAddr) String() string { - from := v.Parent().pkg() - return fmt.Sprintf("IndexAddr <%s> %s %s", relType(v.Type(), from), relName(v.X, v), relName(v.Index, v)) -} - -func (v *Index) String() string { - from := v.Parent().pkg() - return fmt.Sprintf("Index <%s> %s %s", relType(v.Type(), from), relName(v.X, v), relName(v.Index, v)) -} - -func (v *MapLookup) String() string { - from := v.Parent().pkg() - return fmt.Sprintf("MapLookup <%s> %s %s", relType(v.Type(), from), relName(v.X, v), relName(v.Index, v)) -} - -func (v *StringLookup) String() string { - from := v.Parent().pkg() - return fmt.Sprintf("StringLookup <%s> %s %s", relType(v.Type(), from), relName(v.X, v), relName(v.Index, v)) -} - -func (v *Range) String() string { - from := v.Parent().pkg() - return fmt.Sprintf("Range <%s> %s", relType(v.Type(), from), relName(v.X, v)) -} - -func (v *Next) String() string { - from := v.Parent().pkg() - return fmt.Sprintf("Next <%s> %s", relType(v.Type(), from), relName(v.Iter, v)) -} - -func (v *TypeAssert) String() string { - from := v.Parent().pkg() - return fmt.Sprintf("TypeAssert <%s> %s", relType(v.Type(), from), relName(v.X, v)) -} - -func (v *Extract) String() string { - from := v.Parent().pkg() - name := v.Tuple.Type().(*types.Tuple).At(v.Index).Name() - return fmt.Sprintf("Extract <%s> [%d] (%s) %s", relType(v.Type(), from), v.Index, name, relName(v.Tuple, v)) -} - -func (s *Jump) String() string { - // Be robust against malformed CFG. - block := -1 - if s.block != nil && len(s.block.Succs) == 1 { - block = s.block.Succs[0].Index - } - str := fmt.Sprintf("Jump → b%d", block) - if s.Comment != "" { - str = fmt.Sprintf("%s # %s", str, s.Comment) - } - return str -} - -func (s *Unreachable) String() string { - // Be robust against malformed CFG. - block := -1 - if s.block != nil && len(s.block.Succs) == 1 { - block = s.block.Succs[0].Index - } - return fmt.Sprintf("Unreachable → b%d", block) -} - -func (s *If) String() string { - // Be robust against malformed CFG. - tblock, fblock := -1, -1 - if s.block != nil && len(s.block.Succs) == 2 { - tblock = s.block.Succs[0].Index - fblock = s.block.Succs[1].Index - } - return fmt.Sprintf("If %s → b%d b%d", relName(s.Cond, s), tblock, fblock) -} - -func (s *ConstantSwitch) String() string { - var b bytes.Buffer - fmt.Fprintf(&b, "ConstantSwitch %s", relName(s.Tag, s)) - for _, cond := range s.Conds { - fmt.Fprintf(&b, " %s", relName(cond, s)) - } - fmt.Fprint(&b, " →") - for _, succ := range s.block.Succs { - fmt.Fprintf(&b, " b%d", succ.Index) - } - return b.String() -} - -func (s *TypeSwitch) String() string { - from := s.Parent().pkg() - var b bytes.Buffer - fmt.Fprintf(&b, "TypeSwitch <%s> %s", relType(s.typ, from), relName(s.Tag, s)) - for _, cond := range s.Conds { - fmt.Fprintf(&b, " %q", relType(cond, s.block.parent.pkg())) - } - return b.String() -} - -func (s *Go) String() string { - return printCall(&s.Call, "Go", s) -} - -func (s *Panic) String() string { - // Be robust against malformed CFG. - block := -1 - if s.block != nil && len(s.block.Succs) == 1 { - block = s.block.Succs[0].Index - } - return fmt.Sprintf("Panic %s → b%d", relName(s.X, s), block) -} - -func (s *Return) String() string { - var b bytes.Buffer - b.WriteString("Return") - for _, r := range s.Results { - b.WriteString(" ") - b.WriteString(relName(r, s)) - } - return b.String() -} - -func (*RunDefers) String() string { - return "RunDefers" -} - -func (s *Send) String() string { - return fmt.Sprintf("Send %s %s", relName(s.Chan, s), relName(s.X, s)) -} - -func (recv *Recv) String() string { - from := recv.Parent().pkg() - return fmt.Sprintf("Recv <%s> %s", relType(recv.Type(), from), relName(recv.Chan, recv)) -} - -func (s *Defer) String() string { - return printCall(&s.Call, "Defer", s) -} - -func (s *Select) String() string { - var b bytes.Buffer - for i, st := range s.States { - if i > 0 { - b.WriteString(", ") - } - if st.Dir == types.RecvOnly { - b.WriteString("<-") - b.WriteString(relName(st.Chan, s)) - } else { - b.WriteString(relName(st.Chan, s)) - b.WriteString("<-") - b.WriteString(relName(st.Send, s)) - } - } - non := "" - if !s.Blocking { - non = "Non" - } - from := s.Parent().pkg() - return fmt.Sprintf("Select%sBlocking <%s> [%s]", non, relType(s.Type(), from), b.String()) -} - -func (s *Store) String() string { - return fmt.Sprintf("Store {%s} %s %s", - s.Val.Type(), relName(s.Addr, s), relName(s.Val, s)) -} - -func (s *BlankStore) String() string { - return fmt.Sprintf("BlankStore %s", relName(s.Val, s)) -} - -func (s *MapUpdate) String() string { - return fmt.Sprintf("MapUpdate %s %s %s", relName(s.Map, s), relName(s.Key, s), relName(s.Value, s)) -} - -func (s *DebugRef) String() string { - p := s.Parent().Prog.Fset.Position(s.Pos()) - var descr interface{} - if s.object != nil { - descr = s.object // e.g. "var x int" - } else { - descr = reflect.TypeOf(s.Expr) // e.g. "*ast.CallExpr" - } - var addr string - if s.IsAddr { - addr = "address of " - } - return fmt.Sprintf("; %s%s @ %d:%d is %s", addr, descr, p.Line, p.Column, s.X.Name()) -} - -func (p *Package) String() string { - return "package " + p.Pkg.Path() -} - -var _ io.WriterTo = (*Package)(nil) // *Package implements io.Writer - -func (p *Package) WriteTo(w io.Writer) (int64, error) { - var buf bytes.Buffer - WritePackage(&buf, p) - n, err := w.Write(buf.Bytes()) - return int64(n), err -} - -// WritePackage writes to buf a human-readable summary of p. -func WritePackage(buf *bytes.Buffer, p *Package) { - fmt.Fprintf(buf, "%s:\n", p) - - var names []string - maxname := 0 - for name := range p.Members { - if l := len(name); l > maxname { - maxname = l - } - names = append(names, name) - } - - from := p.Pkg - sort.Strings(names) - for _, name := range names { - switch mem := p.Members[name].(type) { - case *NamedConst: - fmt.Fprintf(buf, " const %-*s %s = %s\n", - maxname, name, mem.Name(), mem.Value.RelString(from)) - - case *Function: - fmt.Fprintf(buf, " func %-*s %s\n", - maxname, name, relType(mem.Type(), from)) - - case *Type: - fmt.Fprintf(buf, " type %-*s %s\n", - maxname, name, relType(mem.Type().Underlying(), from)) - for _, meth := range typeutil.IntuitiveMethodSet(mem.Type(), &p.Prog.MethodSets) { - fmt.Fprintf(buf, " %s\n", types.SelectionString(meth, types.RelativeTo(from))) - } - - case *Global: - fmt.Fprintf(buf, " var %-*s %s\n", - maxname, name, relType(mem.Type().(*types.Pointer).Elem(), from)) - } - } - - fmt.Fprintf(buf, "\n") -} diff --git a/vendor/honnef.co/go/tools/ir/sanity.go b/vendor/honnef.co/go/tools/ir/sanity.go deleted file mode 100644 index 5c487186d..000000000 --- a/vendor/honnef.co/go/tools/ir/sanity.go +++ /dev/null @@ -1,555 +0,0 @@ -// Copyright 2013 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package ir - -// An optional pass for sanity-checking invariants of the IR representation. -// Currently it checks CFG invariants but little at the instruction level. - -import ( - "fmt" - "go/types" - "io" - "os" - "strings" -) - -type sanity struct { - reporter io.Writer - fn *Function - block *BasicBlock - instrs map[Instruction]struct{} - insane bool -} - -// sanityCheck performs integrity checking of the IR representation -// of the function fn and returns true if it was valid. Diagnostics -// are written to reporter if non-nil, os.Stderr otherwise. Some -// diagnostics are only warnings and do not imply a negative result. -// -// Sanity-checking is intended to facilitate the debugging of code -// transformation passes. -// -func sanityCheck(fn *Function, reporter io.Writer) bool { - if reporter == nil { - reporter = os.Stderr - } - return (&sanity{reporter: reporter}).checkFunction(fn) -} - -// mustSanityCheck is like sanityCheck but panics instead of returning -// a negative result. -// -func mustSanityCheck(fn *Function, reporter io.Writer) { - if !sanityCheck(fn, reporter) { - fn.WriteTo(os.Stderr) - panic("SanityCheck failed") - } -} - -func (s *sanity) diagnostic(prefix, format string, args ...interface{}) { - fmt.Fprintf(s.reporter, "%s: function %s", prefix, s.fn) - if s.block != nil { - fmt.Fprintf(s.reporter, ", block %s", s.block) - } - io.WriteString(s.reporter, ": ") - fmt.Fprintf(s.reporter, format, args...) - io.WriteString(s.reporter, "\n") -} - -func (s *sanity) errorf(format string, args ...interface{}) { - s.insane = true - s.diagnostic("Error", format, args...) -} - -func (s *sanity) warnf(format string, args ...interface{}) { - s.diagnostic("Warning", format, args...) -} - -// findDuplicate returns an arbitrary basic block that appeared more -// than once in blocks, or nil if all were unique. -func findDuplicate(blocks []*BasicBlock) *BasicBlock { - if len(blocks) < 2 { - return nil - } - if blocks[0] == blocks[1] { - return blocks[0] - } - // Slow path: - m := make(map[*BasicBlock]bool) - for _, b := range blocks { - if m[b] { - return b - } - m[b] = true - } - return nil -} - -func (s *sanity) checkInstr(idx int, instr Instruction) { - switch instr := instr.(type) { - case *If, *Jump, *Return, *Panic, *Unreachable, *ConstantSwitch: - s.errorf("control flow instruction not at end of block") - case *Sigma: - if idx > 0 { - prev := s.block.Instrs[idx-1] - if _, ok := prev.(*Sigma); !ok { - s.errorf("Sigma instruction follows a non-Sigma: %T", prev) - } - } - case *Phi: - if idx == 0 { - // It suffices to apply this check to just the first phi node. - if dup := findDuplicate(s.block.Preds); dup != nil { - s.errorf("phi node in block with duplicate predecessor %s", dup) - } - } else { - prev := s.block.Instrs[idx-1] - switch prev.(type) { - case *Phi, *Sigma: - default: - s.errorf("Phi instruction follows a non-Phi, non-Sigma: %T", prev) - } - } - if ne, np := len(instr.Edges), len(s.block.Preds); ne != np { - s.errorf("phi node has %d edges but %d predecessors", ne, np) - - } else { - for i, e := range instr.Edges { - if e == nil { - s.errorf("phi node '%s' has no value for edge #%d from %s", instr.Comment, i, s.block.Preds[i]) - } - } - } - - case *Alloc: - if !instr.Heap { - found := false - for _, l := range s.fn.Locals { - if l == instr { - found = true - break - } - } - if !found { - s.errorf("local alloc %s = %s does not appear in Function.Locals", instr.Name(), instr) - } - } - - case *BinOp: - case *Call: - case *ChangeInterface: - case *ChangeType: - case *Convert: - if _, ok := instr.X.Type().Underlying().(*types.Basic); !ok { - if _, ok := instr.Type().Underlying().(*types.Basic); !ok { - s.errorf("convert %s -> %s: at least one type must be basic", instr.X.Type(), instr.Type()) - } - } - - case *Defer: - case *Extract: - case *Field: - case *FieldAddr: - case *Go: - case *Index: - case *IndexAddr: - case *MapLookup: - case *StringLookup: - case *MakeChan: - case *MakeClosure: - numFree := len(instr.Fn.(*Function).FreeVars) - numBind := len(instr.Bindings) - if numFree != numBind { - s.errorf("MakeClosure has %d Bindings for function %s with %d free vars", - numBind, instr.Fn, numFree) - - } - if recv := instr.Type().(*types.Signature).Recv(); recv != nil { - s.errorf("MakeClosure's type includes receiver %s", recv.Type()) - } - - case *MakeInterface: - case *MakeMap: - case *MakeSlice: - case *MapUpdate: - case *Next: - case *Range: - case *RunDefers: - case *Select: - case *Send: - case *Slice: - case *Store: - case *TypeAssert: - case *UnOp: - case *DebugRef: - case *BlankStore: - case *Load: - case *Parameter: - case *Const: - case *Recv: - case *TypeSwitch: - default: - panic(fmt.Sprintf("Unknown instruction type: %T", instr)) - } - - if call, ok := instr.(CallInstruction); ok { - if call.Common().Signature() == nil { - s.errorf("nil signature: %s", call) - } - } - - // Check that value-defining instructions have valid types - // and a valid referrer list. - if v, ok := instr.(Value); ok { - t := v.Type() - if t == nil { - s.errorf("no type: %s = %s", v.Name(), v) - } else if t == tRangeIter { - // not a proper type; ignore. - } else if b, ok := t.Underlying().(*types.Basic); ok && b.Info()&types.IsUntyped != 0 { - if _, ok := v.(*Const); !ok { - s.errorf("instruction has 'untyped' result: %s = %s : %s", v.Name(), v, t) - } - } - s.checkReferrerList(v) - } - - // Untyped constants are legal as instruction Operands(), - // for example: - // _ = "foo"[0] - // or: - // if wordsize==64 {...} - - // All other non-Instruction Values can be found via their - // enclosing Function or Package. -} - -func (s *sanity) checkFinalInstr(instr Instruction) { - switch instr := instr.(type) { - case *If: - if nsuccs := len(s.block.Succs); nsuccs != 2 { - s.errorf("If-terminated block has %d successors; expected 2", nsuccs) - return - } - if s.block.Succs[0] == s.block.Succs[1] { - s.errorf("If-instruction has same True, False target blocks: %s", s.block.Succs[0]) - return - } - - case *Jump: - if nsuccs := len(s.block.Succs); nsuccs != 1 { - s.errorf("Jump-terminated block has %d successors; expected 1", nsuccs) - return - } - - case *Return: - if nsuccs := len(s.block.Succs); nsuccs != 0 { - s.errorf("Return-terminated block has %d successors; expected none", nsuccs) - return - } - if na, nf := len(instr.Results), s.fn.Signature.Results().Len(); nf != na { - s.errorf("%d-ary return in %d-ary function", na, nf) - } - - case *Panic: - if nsuccs := len(s.block.Succs); nsuccs != 1 { - s.errorf("Panic-terminated block has %d successors; expected one", nsuccs) - return - } - - case *Unreachable: - if nsuccs := len(s.block.Succs); nsuccs != 1 { - s.errorf("Unreachable-terminated block has %d successors; expected one", nsuccs) - return - } - - case *ConstantSwitch: - - default: - s.errorf("non-control flow instruction at end of block") - } -} - -func (s *sanity) checkBlock(b *BasicBlock, index int) { - s.block = b - - if b.Index != index { - s.errorf("block has incorrect Index %d", b.Index) - } - if b.parent != s.fn { - s.errorf("block has incorrect parent %s", b.parent) - } - - // Check all blocks are reachable. - // (The entry block is always implicitly reachable, the exit block may be unreachable.) - if index > 1 && len(b.Preds) == 0 { - s.warnf("unreachable block") - if b.Instrs == nil { - // Since this block is about to be pruned, - // tolerating transient problems in it - // simplifies other optimizations. - return - } - } - - // Check predecessor and successor relations are dual, - // and that all blocks in CFG belong to same function. - for _, a := range b.Preds { - found := false - for _, bb := range a.Succs { - if bb == b { - found = true - break - } - } - if !found { - s.errorf("expected successor edge in predecessor %s; found only: %s", a, a.Succs) - } - if a.parent != s.fn { - s.errorf("predecessor %s belongs to different function %s", a, a.parent) - } - } - for _, c := range b.Succs { - found := false - for _, bb := range c.Preds { - if bb == b { - found = true - break - } - } - if !found { - s.errorf("expected predecessor edge in successor %s; found only: %s", c, c.Preds) - } - if c.parent != s.fn { - s.errorf("successor %s belongs to different function %s", c, c.parent) - } - } - - // Check each instruction is sane. - n := len(b.Instrs) - if n == 0 { - s.errorf("basic block contains no instructions") - } - var rands [10]*Value // reuse storage - for j, instr := range b.Instrs { - if instr == nil { - s.errorf("nil instruction at index %d", j) - continue - } - if b2 := instr.Block(); b2 == nil { - s.errorf("nil Block() for instruction at index %d", j) - continue - } else if b2 != b { - s.errorf("wrong Block() (%s) for instruction at index %d ", b2, j) - continue - } - if j < n-1 { - s.checkInstr(j, instr) - } else { - s.checkFinalInstr(instr) - } - - // Check Instruction.Operands. - operands: - for i, op := range instr.Operands(rands[:0]) { - if op == nil { - s.errorf("nil operand pointer %d of %s", i, instr) - continue - } - val := *op - if val == nil { - continue // a nil operand is ok - } - - // Check that "untyped" types only appear on constant operands. - if _, ok := (*op).(*Const); !ok { - if basic, ok := (*op).Type().(*types.Basic); ok { - if basic.Info()&types.IsUntyped != 0 { - s.errorf("operand #%d of %s is untyped: %s", i, instr, basic) - } - } - } - - // Check that Operands that are also Instructions belong to same function. - // TODO(adonovan): also check their block dominates block b. - if val, ok := val.(Instruction); ok { - if val.Block() == nil { - s.errorf("operand %d of %s is an instruction (%s) that belongs to no block", i, instr, val) - } else if val.Parent() != s.fn { - s.errorf("operand %d of %s is an instruction (%s) from function %s", i, instr, val, val.Parent()) - } - } - - // Check that each function-local operand of - // instr refers back to instr. (NB: quadratic) - switch val := val.(type) { - case *Const, *Global, *Builtin: - continue // not local - case *Function: - if val.parent == nil { - continue // only anon functions are local - } - } - - // TODO(adonovan): check val.Parent() != nil <=> val.Referrers() is defined. - - if refs := val.Referrers(); refs != nil { - for _, ref := range *refs { - if ref == instr { - continue operands - } - } - s.errorf("operand %d of %s (%s) does not refer to us", i, instr, val) - } else { - s.errorf("operand %d of %s (%s) has no referrers", i, instr, val) - } - } - } -} - -func (s *sanity) checkReferrerList(v Value) { - refs := v.Referrers() - if refs == nil { - s.errorf("%s has missing referrer list", v.Name()) - return - } - for i, ref := range *refs { - if _, ok := s.instrs[ref]; !ok { - if val, ok := ref.(Value); ok { - s.errorf("%s.Referrers()[%d] = %s = %s is not an instruction belonging to this function", v.Name(), i, val.Name(), val) - } else { - s.errorf("%s.Referrers()[%d] = %s is not an instruction belonging to this function", v.Name(), i, ref) - } - } - } -} - -func (s *sanity) checkFunction(fn *Function) bool { - // TODO(adonovan): check Function invariants: - // - check params match signature - // - check transient fields are nil - // - warn if any fn.Locals do not appear among block instructions. - s.fn = fn - if fn.Prog == nil { - s.errorf("nil Prog") - } - - _ = fn.String() // must not crash - _ = fn.RelString(fn.pkg()) // must not crash - - // All functions have a package, except delegates (which are - // shared across packages, or duplicated as weak symbols in a - // separate-compilation model), and error.Error. - if fn.Pkg == nil { - if strings.HasPrefix(fn.Synthetic, "wrapper ") || - strings.HasPrefix(fn.Synthetic, "bound ") || - strings.HasPrefix(fn.Synthetic, "thunk ") || - strings.HasSuffix(fn.name, "Error") { - // ok - } else { - s.errorf("nil Pkg") - } - } - if src, syn := fn.Synthetic == "", fn.source != nil; src != syn { - s.errorf("got fromSource=%t, hasSyntax=%t; want same values", src, syn) - } - for i, l := range fn.Locals { - if l.Parent() != fn { - s.errorf("Local %s at index %d has wrong parent", l.Name(), i) - } - if l.Heap { - s.errorf("Local %s at index %d has Heap flag set", l.Name(), i) - } - } - // Build the set of valid referrers. - s.instrs = make(map[Instruction]struct{}) - for _, b := range fn.Blocks { - for _, instr := range b.Instrs { - s.instrs[instr] = struct{}{} - } - } - for i, p := range fn.Params { - if p.Parent() != fn { - s.errorf("Param %s at index %d has wrong parent", p.Name(), i) - } - // Check common suffix of Signature and Params match type. - if sig := fn.Signature; sig != nil { - j := i - len(fn.Params) + sig.Params().Len() // index within sig.Params - if j < 0 { - continue - } - if !types.Identical(p.Type(), sig.Params().At(j).Type()) { - s.errorf("Param %s at index %d has wrong type (%s, versus %s in Signature)", p.Name(), i, p.Type(), sig.Params().At(j).Type()) - - } - } - - s.checkReferrerList(p) - } - for i, fv := range fn.FreeVars { - if fv.Parent() != fn { - s.errorf("FreeVar %s at index %d has wrong parent", fv.Name(), i) - } - s.checkReferrerList(fv) - } - - if fn.Blocks != nil && len(fn.Blocks) == 0 { - // Function _had_ blocks (so it's not external) but - // they were "optimized" away, even the entry block. - s.errorf("Blocks slice is non-nil but empty") - } - for i, b := range fn.Blocks { - if b == nil { - s.warnf("nil *BasicBlock at f.Blocks[%d]", i) - continue - } - s.checkBlock(b, i) - } - - s.block = nil - for i, anon := range fn.AnonFuncs { - if anon.Parent() != fn { - s.errorf("AnonFuncs[%d]=%s but %s.Parent()=%s", i, anon, anon, anon.Parent()) - } - } - s.fn = nil - return !s.insane -} - -// sanityCheckPackage checks invariants of packages upon creation. -// It does not require that the package is built. -// Unlike sanityCheck (for functions), it just panics at the first error. -func sanityCheckPackage(pkg *Package) { - if pkg.Pkg == nil { - panic(fmt.Sprintf("Package %s has no Object", pkg)) - } - _ = pkg.String() // must not crash - - for name, mem := range pkg.Members { - if name != mem.Name() { - panic(fmt.Sprintf("%s: %T.Name() = %s, want %s", - pkg.Pkg.Path(), mem, mem.Name(), name)) - } - obj := mem.Object() - if obj == nil { - // This check is sound because fields - // {Global,Function}.object have type - // types.Object. (If they were declared as - // *types.{Var,Func}, we'd have a non-empty - // interface containing a nil pointer.) - - continue // not all members have typechecker objects - } - if obj.Name() != name { - if obj.Name() == "init" && strings.HasPrefix(mem.Name(), "init#") { - // Ok. The name of a declared init function varies between - // its types.Func ("init") and its ir.Function ("init#%d"). - } else { - panic(fmt.Sprintf("%s: %T.Object().Name() = %s, want %s", - pkg.Pkg.Path(), mem, obj.Name(), name)) - } - } - } -} diff --git a/vendor/honnef.co/go/tools/ir/source.go b/vendor/honnef.co/go/tools/ir/source.go deleted file mode 100644 index 93d1ccbd2..000000000 --- a/vendor/honnef.co/go/tools/ir/source.go +++ /dev/null @@ -1,270 +0,0 @@ -// Copyright 2013 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package ir - -// This file defines utilities for working with source positions -// or source-level named entities ("objects"). - -// TODO(adonovan): test that {Value,Instruction}.Pos() positions match -// the originating syntax, as specified. - -import ( - "go/ast" - "go/token" - "go/types" -) - -// EnclosingFunction returns the function that contains the syntax -// node denoted by path. -// -// Syntax associated with package-level variable specifications is -// enclosed by the package's init() function. -// -// Returns nil if not found; reasons might include: -// - the node is not enclosed by any function. -// - the node is within an anonymous function (FuncLit) and -// its IR function has not been created yet -// (pkg.Build() has not yet been called). -// -func EnclosingFunction(pkg *Package, path []ast.Node) *Function { - // Start with package-level function... - fn := findEnclosingPackageLevelFunction(pkg, path) - if fn == nil { - return nil // not in any function - } - - // ...then walk down the nested anonymous functions. - n := len(path) -outer: - for i := range path { - if lit, ok := path[n-1-i].(*ast.FuncLit); ok { - for _, anon := range fn.AnonFuncs { - if anon.Pos() == lit.Type.Func { - fn = anon - continue outer - } - } - // IR function not found: - // - package not yet built, or maybe - // - builder skipped FuncLit in dead block - // (in principle; but currently the Builder - // generates even dead FuncLits). - return nil - } - } - return fn -} - -// HasEnclosingFunction returns true if the AST node denoted by path -// is contained within the declaration of some function or -// package-level variable. -// -// Unlike EnclosingFunction, the behaviour of this function does not -// depend on whether IR code for pkg has been built, so it can be -// used to quickly reject check inputs that will cause -// EnclosingFunction to fail, prior to IR building. -// -func HasEnclosingFunction(pkg *Package, path []ast.Node) bool { - return findEnclosingPackageLevelFunction(pkg, path) != nil -} - -// findEnclosingPackageLevelFunction returns the Function -// corresponding to the package-level function enclosing path. -// -func findEnclosingPackageLevelFunction(pkg *Package, path []ast.Node) *Function { - if n := len(path); n >= 2 { // [... {Gen,Func}Decl File] - switch decl := path[n-2].(type) { - case *ast.GenDecl: - if decl.Tok == token.VAR && n >= 3 { - // Package-level 'var' initializer. - return pkg.init - } - - case *ast.FuncDecl: - // Declared function/method. - fn := findNamedFunc(pkg, decl.Pos()) - if fn == nil && decl.Recv == nil && decl.Name.Name == "init" { - // Hack: return non-nil when IR is not yet - // built so that HasEnclosingFunction works. - return pkg.init - } - return fn - } - } - return nil // not in any function -} - -// findNamedFunc returns the named function whose FuncDecl.Ident is at -// position pos. -// -func findNamedFunc(pkg *Package, pos token.Pos) *Function { - for _, fn := range pkg.Functions { - if fn.Pos() == pos { - return fn - } - } - return nil -} - -// ValueForExpr returns the IR Value that corresponds to non-constant -// expression e. -// -// It returns nil if no value was found, e.g. -// - the expression is not lexically contained within f; -// - f was not built with debug information; or -// - e is a constant expression. (For efficiency, no debug -// information is stored for constants. Use -// go/types.Info.Types[e].Value instead.) -// - e is a reference to nil or a built-in function. -// - the value was optimised away. -// -// If e is an addressable expression used in an lvalue context, -// value is the address denoted by e, and isAddr is true. -// -// The types of e (or &e, if isAddr) and the result are equal -// (modulo "untyped" bools resulting from comparisons). -// -// (Tip: to find the ir.Value given a source position, use -// astutil.PathEnclosingInterval to locate the ast.Node, then -// EnclosingFunction to locate the Function, then ValueForExpr to find -// the ir.Value.) -// -func (f *Function) ValueForExpr(e ast.Expr) (value Value, isAddr bool) { - if f.debugInfo() { // (opt) - e = unparen(e) - for _, b := range f.Blocks { - for _, instr := range b.Instrs { - if ref, ok := instr.(*DebugRef); ok { - if ref.Expr == e { - return ref.X, ref.IsAddr - } - } - } - } - } - return -} - -// --- Lookup functions for source-level named entities (types.Objects) --- - -// Package returns the IR Package corresponding to the specified -// type-checker package object. -// It returns nil if no such IR package has been created. -// -func (prog *Program) Package(obj *types.Package) *Package { - return prog.packages[obj] -} - -// packageLevelValue returns the package-level value corresponding to -// the specified named object, which may be a package-level const -// (*Const), var (*Global) or func (*Function) of some package in -// prog. It returns nil if the object is not found. -// -func (prog *Program) packageLevelValue(obj types.Object) Value { - if pkg, ok := prog.packages[obj.Pkg()]; ok { - return pkg.values[obj] - } - return nil -} - -// FuncValue returns the concrete Function denoted by the source-level -// named function obj, or nil if obj denotes an interface method. -// -// TODO(adonovan): check the invariant that obj.Type() matches the -// result's Signature, both in the params/results and in the receiver. -// -func (prog *Program) FuncValue(obj *types.Func) *Function { - fn, _ := prog.packageLevelValue(obj).(*Function) - return fn -} - -// ConstValue returns the IR Value denoted by the source-level named -// constant obj. -// -func (prog *Program) ConstValue(obj *types.Const) *Const { - // TODO(adonovan): opt: share (don't reallocate) - // Consts for const objects and constant ast.Exprs. - - // Universal constant? {true,false,nil} - if obj.Parent() == types.Universe { - return NewConst(obj.Val(), obj.Type()) - } - // Package-level named constant? - if v := prog.packageLevelValue(obj); v != nil { - return v.(*Const) - } - return NewConst(obj.Val(), obj.Type()) -} - -// VarValue returns the IR Value that corresponds to a specific -// identifier denoting the source-level named variable obj. -// -// VarValue returns nil if a local variable was not found, perhaps -// because its package was not built, the debug information was not -// requested during IR construction, or the value was optimized away. -// -// ref is the path to an ast.Ident (e.g. from PathEnclosingInterval), -// and that ident must resolve to obj. -// -// pkg is the package enclosing the reference. (A reference to a var -// always occurs within a function, so we need to know where to find it.) -// -// If the identifier is a field selector and its base expression is -// non-addressable, then VarValue returns the value of that field. -// For example: -// func f() struct {x int} -// f().x // VarValue(x) returns a *Field instruction of type int -// -// All other identifiers denote addressable locations (variables). -// For them, VarValue may return either the variable's address or its -// value, even when the expression is evaluated only for its value; the -// situation is reported by isAddr, the second component of the result. -// -// If !isAddr, the returned value is the one associated with the -// specific identifier. For example, -// var x int // VarValue(x) returns Const 0 here -// x = 1 // VarValue(x) returns Const 1 here -// -// It is not specified whether the value or the address is returned in -// any particular case, as it may depend upon optimizations performed -// during IR code generation, such as registerization, constant -// folding, avoidance of materialization of subexpressions, etc. -// -func (prog *Program) VarValue(obj *types.Var, pkg *Package, ref []ast.Node) (value Value, isAddr bool) { - // All references to a var are local to some function, possibly init. - fn := EnclosingFunction(pkg, ref) - if fn == nil { - return // e.g. def of struct field; IR not built? - } - - id := ref[0].(*ast.Ident) - - // Defining ident of a parameter? - if id.Pos() == obj.Pos() { - for _, param := range fn.Params { - if param.Object() == obj { - return param, false - } - } - } - - // Other ident? - for _, b := range fn.Blocks { - for _, instr := range b.Instrs { - if dr, ok := instr.(*DebugRef); ok { - if dr.Pos() == id.Pos() { - return dr.X, dr.IsAddr - } - } - } - } - - // Defining ident of package-level var? - if v := prog.packageLevelValue(obj); v != nil { - return v.(*Global), true - } - - return // e.g. debug info not requested, or var optimized away -} diff --git a/vendor/honnef.co/go/tools/ir/ssa.go b/vendor/honnef.co/go/tools/ir/ssa.go deleted file mode 100644 index d3cb25222..000000000 --- a/vendor/honnef.co/go/tools/ir/ssa.go +++ /dev/null @@ -1,1855 +0,0 @@ -// Copyright 2013 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package ir - -// This package defines a high-level intermediate representation for -// Go programs using static single-information (SSI) form. - -import ( - "fmt" - "go/ast" - "go/constant" - "go/token" - "go/types" - "sync" - - "golang.org/x/tools/go/types/typeutil" -) - -type ID int32 - -// A Program is a partial or complete Go program converted to IR form. -type Program struct { - Fset *token.FileSet // position information for the files of this Program - PrintFunc string // create ir.html for function specified in PrintFunc - imported map[string]*Package // all importable Packages, keyed by import path - packages map[*types.Package]*Package // all loaded Packages, keyed by object - mode BuilderMode // set of mode bits for IR construction - MethodSets typeutil.MethodSetCache // cache of type-checker's method-sets - - methodsMu sync.Mutex // guards the following maps: - methodSets typeutil.Map // maps type to its concrete methodSet - runtimeTypes typeutil.Map // types for which rtypes are needed - canon typeutil.Map // type canonicalization map - bounds map[*types.Func]*Function // bounds for curried x.Method closures - thunks map[selectionKey]*Function // thunks for T.Method expressions -} - -// A Package is a single analyzed Go package containing Members for -// all package-level functions, variables, constants and types it -// declares. These may be accessed directly via Members, or via the -// type-specific accessor methods Func, Type, Var and Const. -// -// Members also contains entries for "init" (the synthetic package -// initializer) and "init#%d", the nth declared init function, -// and unspecified other things too. -// -type Package struct { - Prog *Program // the owning program - Pkg *types.Package // the corresponding go/types.Package - Members map[string]Member // all package members keyed by name (incl. init and init#%d) - Functions []*Function // all functions, including anonymous ones - values map[types.Object]Value // package members (incl. types and methods), keyed by object - init *Function // Func("init"); the package's init function - debug bool // include full debug info in this package - printFunc string // which function to print in HTML form - - // The following fields are set transiently, then cleared - // after building. - buildOnce sync.Once // ensures package building occurs once - ninit int32 // number of init functions - info *types.Info // package type information - files []*ast.File // package ASTs -} - -// A Member is a member of a Go package, implemented by *NamedConst, -// *Global, *Function, or *Type; they are created by package-level -// const, var, func and type declarations respectively. -// -type Member interface { - Name() string // declared name of the package member - String() string // package-qualified name of the package member - RelString(*types.Package) string // like String, but relative refs are unqualified - Object() types.Object // typechecker's object for this member, if any - Type() types.Type // type of the package member - Token() token.Token // token.{VAR,FUNC,CONST,TYPE} - Package() *Package // the containing package -} - -// A Type is a Member of a Package representing a package-level named type. -type Type struct { - object *types.TypeName - pkg *Package -} - -// A NamedConst is a Member of a Package representing a package-level -// named constant. -// -// Pos() returns the position of the declaring ast.ValueSpec.Names[*] -// identifier. -// -// NB: a NamedConst is not a Value; it contains a constant Value, which -// it augments with the name and position of its 'const' declaration. -// -type NamedConst struct { - object *types.Const - Value *Const - pkg *Package -} - -// A Value is an IR value that can be referenced by an instruction. -type Value interface { - setID(ID) - - // Name returns the name of this value, and determines how - // this Value appears when used as an operand of an - // Instruction. - // - // This is the same as the source name for Parameters, - // Builtins, Functions, FreeVars, Globals. - // For constants, it is a representation of the constant's value - // and type. For all other Values this is the name of the - // virtual register defined by the instruction. - // - // The name of an IR Value is not semantically significant, - // and may not even be unique within a function. - Name() string - - // ID returns the ID of this value. IDs are unique within a single - // function and are densely numbered, but may contain gaps. - // Values and other Instructions share the same ID space. - // Globally, values are identified by their addresses. However, - // IDs exist to facilitate efficient storage of mappings between - // values and data when analysing functions. - // - // NB: IDs are allocated late in the IR construction process and - // are not available to early stages of said process. - ID() ID - - // If this value is an Instruction, String returns its - // disassembled form; otherwise it returns unspecified - // human-readable information about the Value, such as its - // kind, name and type. - String() string - - // Type returns the type of this value. Many instructions - // (e.g. IndexAddr) change their behaviour depending on the - // types of their operands. - Type() types.Type - - // Parent returns the function to which this Value belongs. - // It returns nil for named Functions, Builtin and Global. - Parent() *Function - - // Referrers returns the list of instructions that have this - // value as one of their operands; it may contain duplicates - // if an instruction has a repeated operand. - // - // Referrers actually returns a pointer through which the - // caller may perform mutations to the object's state. - // - // Referrers is currently only defined if Parent()!=nil, - // i.e. for the function-local values FreeVar, Parameter, - // Functions (iff anonymous) and all value-defining instructions. - // It returns nil for named Functions, Builtin and Global. - // - // Instruction.Operands contains the inverse of this relation. - Referrers() *[]Instruction - - Operands(rands []*Value) []*Value // nil for non-Instructions - - // Source returns the AST node responsible for creating this - // value. A single AST node may be responsible for more than one - // value, and not all values have an associated AST node. - // - // Do not use this method to find a Value given an ast.Expr; use - // ValueForExpr instead. - Source() ast.Node - - // Pos returns Source().Pos() if Source is not nil, else it - // returns token.NoPos. - Pos() token.Pos -} - -// An Instruction is an IR instruction that computes a new Value or -// has some effect. -// -// An Instruction that defines a value (e.g. BinOp) also implements -// the Value interface; an Instruction that only has an effect (e.g. Store) -// does not. -// -type Instruction interface { - setSource(ast.Node) - setID(ID) - - // String returns the disassembled form of this value. - // - // Examples of Instructions that are Values: - // "BinOp {+} t1 t2" (BinOp) - // "Call len t1" (Call) - // Note that the name of the Value is not printed. - // - // Examples of Instructions that are not Values: - // "Return t1" (Return) - // "Store {int} t2 t1" (Store) - // - // (The separation of Value.Name() from Value.String() is useful - // for some analyses which distinguish the operation from the - // value it defines, e.g., 'y = local int' is both an allocation - // of memory 'local int' and a definition of a pointer y.) - String() string - - // ID returns the ID of this instruction. IDs are unique within a single - // function and are densely numbered, but may contain gaps. - // Globally, instructions are identified by their addresses. However, - // IDs exist to facilitate efficient storage of mappings between - // instructions and data when analysing functions. - // - // NB: IDs are allocated late in the IR construction process and - // are not available to early stages of said process. - ID() ID - - // Parent returns the function to which this instruction - // belongs. - Parent() *Function - - // Block returns the basic block to which this instruction - // belongs. - Block() *BasicBlock - - // setBlock sets the basic block to which this instruction belongs. - setBlock(*BasicBlock) - - // Operands returns the operands of this instruction: the - // set of Values it references. - // - // Specifically, it appends their addresses to rands, a - // user-provided slice, and returns the resulting slice, - // permitting avoidance of memory allocation. - // - // The operands are appended in undefined order, but the order - // is consistent for a given Instruction; the addresses are - // always non-nil but may point to a nil Value. Clients may - // store through the pointers, e.g. to effect a value - // renaming. - // - // Value.Referrers is a subset of the inverse of this - // relation. (Referrers are not tracked for all types of - // Values.) - Operands(rands []*Value) []*Value - - Referrers() *[]Instruction // nil for non-Values - - // Source returns the AST node responsible for creating this - // instruction. A single AST node may be responsible for more than - // one instruction, and not all instructions have an associated - // AST node. - Source() ast.Node - - // Pos returns Source().Pos() if Source is not nil, else it - // returns token.NoPos. - Pos() token.Pos -} - -// A Node is a node in the IR value graph. Every concrete type that -// implements Node is also either a Value, an Instruction, or both. -// -// Node contains the methods common to Value and Instruction, plus the -// Operands and Referrers methods generalized to return nil for -// non-Instructions and non-Values, respectively. -// -// Node is provided to simplify IR graph algorithms. Clients should -// use the more specific and informative Value or Instruction -// interfaces where appropriate. -// -type Node interface { - setID(ID) - - // Common methods: - ID() ID - String() string - Source() ast.Node - Pos() token.Pos - Parent() *Function - - // Partial methods: - Operands(rands []*Value) []*Value // nil for non-Instructions - Referrers() *[]Instruction // nil for non-Values -} - -// Function represents the parameters, results, and code of a function -// or method. -// -// If Blocks is nil, this indicates an external function for which no -// Go source code is available. In this case, FreeVars and Locals -// are nil too. Clients performing whole-program analysis must -// handle external functions specially. -// -// Blocks contains the function's control-flow graph (CFG). -// Blocks[0] is the function entry point; block order is not otherwise -// semantically significant, though it may affect the readability of -// the disassembly. -// To iterate over the blocks in dominance order, use DomPreorder(). -// -// A nested function (Parent()!=nil) that refers to one or more -// lexically enclosing local variables ("free variables") has FreeVars. -// Such functions cannot be called directly but require a -// value created by MakeClosure which, via its Bindings, supplies -// values for these parameters. -// -// If the function is a method (Signature.Recv() != nil) then the first -// element of Params is the receiver parameter. -// -// A Go package may declare many functions called "init". -// For each one, Object().Name() returns "init" but Name() returns -// "init#1", etc, in declaration order. -// -// Pos() returns the declaring ast.FuncLit.Type.Func or the position -// of the ast.FuncDecl.Name, if the function was explicit in the -// source. Synthetic wrappers, for which Synthetic != "", may share -// the same position as the function they wrap. -// Syntax.Pos() always returns the position of the declaring "func" token. -// -// Type() returns the function's Signature. -// -type Function struct { - node - - name string - object types.Object // a declared *types.Func or one of its wrappers - method *types.Selection // info about provenance of synthetic methods - Signature *types.Signature - - Synthetic string // provenance of synthetic function; "" for true source functions - parent *Function // enclosing function if anon; nil if global - Pkg *Package // enclosing package; nil for shared funcs (wrappers and error.Error) - Prog *Program // enclosing program - Params []*Parameter // function parameters; for methods, includes receiver - FreeVars []*FreeVar // free variables whose values must be supplied by closure - Locals []*Alloc // local variables of this function - Blocks []*BasicBlock // basic blocks of the function; nil => external - Exit *BasicBlock // The function's exit block - AnonFuncs []*Function // anonymous functions directly beneath this one - referrers []Instruction // referring instructions (iff Parent() != nil) - hasDefer bool - WillExit bool // Calling this function will always terminate the process - WillUnwind bool // Calling this function will always unwind (it will call runtime.Goexit or panic) - - // The following fields are set transiently during building, - // then cleared. - currentBlock *BasicBlock // where to emit code - objects map[types.Object]Value // addresses of local variables - namedResults []*Alloc // tuple of named results - implicitResults []*Alloc // tuple of results - targets *targets // linked stack of branch targets - lblocks map[*ast.Object]*lblock // labelled blocks - consts []*Const - wr *HTMLWriter - fakeExits BlockSet - blocksets [5]BlockSet -} - -func (fn *Function) results() []*Alloc { - if len(fn.namedResults) > 0 { - return fn.namedResults - } - return fn.implicitResults -} - -// BasicBlock represents an IR basic block. -// -// The final element of Instrs is always an explicit transfer of -// control (If, Jump, Return, Panic, or Unreachable). -// -// A block may contain no Instructions only if it is unreachable, -// i.e., Preds is nil. Empty blocks are typically pruned. -// -// BasicBlocks and their Preds/Succs relation form a (possibly cyclic) -// graph independent of the IR Value graph: the control-flow graph or -// CFG. It is illegal for multiple edges to exist between the same -// pair of blocks. -// -// Each BasicBlock is also a node in the dominator tree of the CFG. -// The tree may be navigated using Idom()/Dominees() and queried using -// Dominates(). -// -// The order of Preds and Succs is significant (to Phi and If -// instructions, respectively). -// -type BasicBlock struct { - Index int // index of this block within Parent().Blocks - Comment string // optional label; no semantic significance - parent *Function // parent function - Instrs []Instruction // instructions in order - Preds, Succs []*BasicBlock // predecessors and successors - succs2 [2]*BasicBlock // initial space for Succs - dom domInfo // dominator tree info - pdom domInfo // post-dominator tree info - post int - gaps int // number of nil Instrs (transient) - rundefers int // number of rundefers (transient) -} - -// Pure values ---------------------------------------- - -// A FreeVar represents a free variable of the function to which it -// belongs. -// -// FreeVars are used to implement anonymous functions, whose free -// variables are lexically captured in a closure formed by -// MakeClosure. The value of such a free var is an Alloc or another -// FreeVar and is considered a potentially escaping heap address, with -// pointer type. -// -// FreeVars are also used to implement bound method closures. Such a -// free var represents the receiver value and may be of any type that -// has concrete methods. -// -// Pos() returns the position of the value that was captured, which -// belongs to an enclosing function. -// -type FreeVar struct { - node - - name string - typ types.Type - parent *Function - referrers []Instruction - - // Transiently needed during building. - outer Value // the Value captured from the enclosing context. -} - -// A Parameter represents an input parameter of a function. -// -type Parameter struct { - register - - name string - object types.Object // a *types.Var; nil for non-source locals -} - -// A Const represents the value of a constant expression. -// -// The underlying type of a constant may be any boolean, numeric, or -// string type. In addition, a Const may represent the nil value of -// any reference type---interface, map, channel, pointer, slice, or -// function---but not "untyped nil". -// -// All source-level constant expressions are represented by a Const -// of the same type and value. -// -// Value holds the exact value of the constant, independent of its -// Type(), using the same representation as package go/constant uses for -// constants, or nil for a typed nil value. -// -// Pos() returns token.NoPos. -// -// Example printed form: -// Const {42} -// Const {"test"} -// Const {(3 + 4i)} -// -type Const struct { - register - - Value constant.Value -} - -// A Global is a named Value holding the address of a package-level -// variable. -// -// Pos() returns the position of the ast.ValueSpec.Names[*] -// identifier. -// -type Global struct { - node - - name string - object types.Object // a *types.Var; may be nil for synthetics e.g. init$guard - typ types.Type - - Pkg *Package -} - -// A Builtin represents a specific use of a built-in function, e.g. len. -// -// Builtins are immutable values. Builtins do not have addresses. -// Builtins can only appear in CallCommon.Func. -// -// Name() indicates the function: one of the built-in functions from the -// Go spec (excluding "make" and "new") or one of these ir-defined -// intrinsics: -// -// // wrapnilchk returns ptr if non-nil, panics otherwise. -// // (For use in indirection wrappers.) -// func ir:wrapnilchk(ptr *T, recvType, methodName string) *T -// -// Object() returns a *types.Builtin for built-ins defined by the spec, -// nil for others. -// -// Type() returns a *types.Signature representing the effective -// signature of the built-in for this call. -// -type Builtin struct { - node - - name string - sig *types.Signature -} - -// Value-defining instructions ---------------------------------------- - -// The Alloc instruction reserves space for a variable of the given type, -// zero-initializes it, and yields its address. -// -// Alloc values are always addresses, and have pointer types, so the -// type of the allocated variable is actually -// Type().Underlying().(*types.Pointer).Elem(). -// -// If Heap is false, Alloc allocates space in the function's -// activation record (frame); we refer to an Alloc(Heap=false) as a -// "stack" alloc. Each stack Alloc returns the same address each time -// it is executed within the same activation; the space is -// re-initialized to zero. -// -// If Heap is true, Alloc allocates space in the heap; we -// refer to an Alloc(Heap=true) as a "heap" alloc. Each heap Alloc -// returns a different address each time it is executed. -// -// When Alloc is applied to a channel, map or slice type, it returns -// the address of an uninitialized (nil) reference of that kind; store -// the result of MakeSlice, MakeMap or MakeChan in that location to -// instantiate these types. -// -// Pos() returns the ast.CompositeLit.Lbrace for a composite literal, -// or the ast.CallExpr.Rparen for a call to new() or for a call that -// allocates a varargs slice. -// -// Example printed form: -// t1 = StackAlloc <*int> -// t2 = HeapAlloc <*int> (new) -// -type Alloc struct { - register - Comment string - Heap bool - index int // dense numbering; for lifting -} - -var _ Instruction = (*Sigma)(nil) -var _ Value = (*Sigma)(nil) - -// The Sigma instruction represents an SSI σ-node, which splits values -// at branches in the control flow. -// -// Conceptually, σ-nodes exist at the end of blocks that branch and -// constitute parallel assignments to one value per destination block. -// However, such a representation would be awkward to work with, so -// instead we place σ-nodes at the beginning of branch targets. The -// From field denotes to which incoming edge the node applies. -// -// Within a block, all σ-nodes must appear before all non-σ nodes. -// -// Example printed form: -// t2 = Sigma [#0] t1 (x) -// -type Sigma struct { - register - From *BasicBlock - X Value - Comment string - - live bool // used during lifting -} - -// The Phi instruction represents an SSA φ-node, which combines values -// that differ across incoming control-flow edges and yields a new -// value. Within a block, all φ-nodes must appear before all non-φ, non-σ -// nodes. -// -// Pos() returns the position of the && or || for short-circuit -// control-flow joins, or that of the *Alloc for φ-nodes inserted -// during SSA renaming. -// -// Example printed form: -// t3 = Phi 2:t1 4:t2 (x) -// -type Phi struct { - register - Comment string // a hint as to its purpose - Edges []Value // Edges[i] is value for Block().Preds[i] - - live bool // used during lifting -} - -// The Call instruction represents a function or method call. -// -// The Call instruction yields the function result if there is exactly -// one. Otherwise it returns a tuple, the components of which are -// accessed via Extract. -// -// See CallCommon for generic function call documentation. -// -// Pos() returns the ast.CallExpr.Lparen, if explicit in the source. -// -// Example printed form: -// t3 = Call <()> println t1 t2 -// t4 = Call <()> foo$1 -// t6 = Invoke t5.String -// -type Call struct { - register - Call CallCommon -} - -// The BinOp instruction yields the result of binary operation X Op Y. -// -// Pos() returns the ast.BinaryExpr.OpPos, if explicit in the source. -// -// Example printed form: -// t3 = BinOp {+} t2 t1 -// -type BinOp struct { - register - // One of: - // ADD SUB MUL QUO REM + - * / % - // AND OR XOR SHL SHR AND_NOT & | ^ << >> &^ - // EQL NEQ LSS LEQ GTR GEQ == != < <= < >= - Op token.Token - X, Y Value -} - -// The UnOp instruction yields the result of Op X. -// XOR is bitwise complement. -// SUB is negation. -// NOT is logical negation. -// -// -// Example printed form: -// t2 = UnOp {^} t1 -// -type UnOp struct { - register - Op token.Token // One of: NOT SUB XOR ! - ^ - X Value -} - -// The Load instruction loads a value from a memory address. -// -// For implicit memory loads, Pos() returns the position of the -// most closely associated source-level construct; the details are not -// specified. -// -// Example printed form: -// t2 = Load t1 -// -type Load struct { - register - X Value -} - -// The ChangeType instruction applies to X a value-preserving type -// change to Type(). -// -// Type changes are permitted: -// - between a named type and its underlying type. -// - between two named types of the same underlying type. -// - between (possibly named) pointers to identical base types. -// - from a bidirectional channel to a read- or write-channel, -// optionally adding/removing a name. -// -// This operation cannot fail dynamically. -// -// Pos() returns the ast.CallExpr.Lparen, if the instruction arose -// from an explicit conversion in the source. -// -// Example printed form: -// t2 = ChangeType <*T> t1 -// -type ChangeType struct { - register - X Value -} - -// The Convert instruction yields the conversion of value X to type -// Type(). One or both of those types is basic (but possibly named). -// -// A conversion may change the value and representation of its operand. -// Conversions are permitted: -// - between real numeric types. -// - between complex numeric types. -// - between string and []byte or []rune. -// - between pointers and unsafe.Pointer. -// - between unsafe.Pointer and uintptr. -// - from (Unicode) integer to (UTF-8) string. -// A conversion may imply a type name change also. -// -// This operation cannot fail dynamically. -// -// Conversions of untyped string/number/bool constants to a specific -// representation are eliminated during IR construction. -// -// Pos() returns the ast.CallExpr.Lparen, if the instruction arose -// from an explicit conversion in the source. -// -// Example printed form: -// t2 = Convert <[]byte> t1 -// -type Convert struct { - register - X Value -} - -// ChangeInterface constructs a value of one interface type from a -// value of another interface type known to be assignable to it. -// This operation cannot fail. -// -// Pos() returns the ast.CallExpr.Lparen if the instruction arose from -// an explicit T(e) conversion; the ast.TypeAssertExpr.Lparen if the -// instruction arose from an explicit e.(T) operation; or token.NoPos -// otherwise. -// -// Example printed form: -// t2 = ChangeInterface t1 -// -type ChangeInterface struct { - register - X Value -} - -// MakeInterface constructs an instance of an interface type from a -// value of a concrete type. -// -// Use Program.MethodSets.MethodSet(X.Type()) to find the method-set -// of X, and Program.MethodValue(m) to find the implementation of a method. -// -// To construct the zero value of an interface type T, use: -// NewConst(constant.MakeNil(), T, pos) -// -// Pos() returns the ast.CallExpr.Lparen, if the instruction arose -// from an explicit conversion in the source. -// -// Example printed form: -// t2 = MakeInterface t1 -// -type MakeInterface struct { - register - X Value -} - -// The MakeClosure instruction yields a closure value whose code is -// Fn and whose free variables' values are supplied by Bindings. -// -// Type() returns a (possibly named) *types.Signature. -// -// Pos() returns the ast.FuncLit.Type.Func for a function literal -// closure or the ast.SelectorExpr.Sel for a bound method closure. -// -// Example printed form: -// t1 = MakeClosure foo$1 t1 t2 -// t5 = MakeClosure (T).foo$bound t4 -// -type MakeClosure struct { - register - Fn Value // always a *Function - Bindings []Value // values for each free variable in Fn.FreeVars -} - -// The MakeMap instruction creates a new hash-table-based map object -// and yields a value of kind map. -// -// Type() returns a (possibly named) *types.Map. -// -// Pos() returns the ast.CallExpr.Lparen, if created by make(map), or -// the ast.CompositeLit.Lbrack if created by a literal. -// -// Example printed form: -// t1 = MakeMap -// t2 = MakeMap t1 -// -type MakeMap struct { - register - Reserve Value // initial space reservation; nil => default -} - -// The MakeChan instruction creates a new channel object and yields a -// value of kind chan. -// -// Type() returns a (possibly named) *types.Chan. -// -// Pos() returns the ast.CallExpr.Lparen for the make(chan) that -// created it. -// -// Example printed form: -// t3 = MakeChan t1 -// t4 = MakeChan t2 -// -type MakeChan struct { - register - Size Value // int; size of buffer; zero => synchronous. -} - -// The MakeSlice instruction yields a slice of length Len backed by a -// newly allocated array of length Cap. -// -// Both Len and Cap must be non-nil Values of integer type. -// -// (Alloc(types.Array) followed by Slice will not suffice because -// Alloc can only create arrays of constant length.) -// -// Type() returns a (possibly named) *types.Slice. -// -// Pos() returns the ast.CallExpr.Lparen for the make([]T) that -// created it. -// -// Example printed form: -// t3 = MakeSlice <[]string> t1 t2 -// t4 = MakeSlice t1 t2 -// -type MakeSlice struct { - register - Len Value - Cap Value -} - -// The Slice instruction yields a slice of an existing string, slice -// or *array X between optional integer bounds Low and High. -// -// Dynamically, this instruction panics if X evaluates to a nil *array -// pointer. -// -// Type() returns string if the type of X was string, otherwise a -// *types.Slice with the same element type as X. -// -// Pos() returns the ast.SliceExpr.Lbrack if created by a x[:] slice -// operation, the ast.CompositeLit.Lbrace if created by a literal, or -// NoPos if not explicit in the source (e.g. a variadic argument slice). -// -// Example printed form: -// t4 = Slice <[]int> t3 t2 t1 -// -type Slice struct { - register - X Value // slice, string, or *array - Low, High, Max Value // each may be nil -} - -// The FieldAddr instruction yields the address of Field of *struct X. -// -// The field is identified by its index within the field list of the -// struct type of X. -// -// Dynamically, this instruction panics if X evaluates to a nil -// pointer. -// -// Type() returns a (possibly named) *types.Pointer. -// -// Pos() returns the position of the ast.SelectorExpr.Sel for the -// field, if explicit in the source. -// -// Example printed form: -// t2 = FieldAddr <*int> [0] (X) t1 -// -type FieldAddr struct { - register - X Value // *struct - Field int // field is X.Type().Underlying().(*types.Pointer).Elem().Underlying().(*types.Struct).Field(Field) -} - -// The Field instruction yields the Field of struct X. -// -// The field is identified by its index within the field list of the -// struct type of X; by using numeric indices we avoid ambiguity of -// package-local identifiers and permit compact representations. -// -// Pos() returns the position of the ast.SelectorExpr.Sel for the -// field, if explicit in the source. -// -// Example printed form: -// t2 = FieldAddr [0] (X) t1 -// -type Field struct { - register - X Value // struct - Field int // index into X.Type().(*types.Struct).Fields -} - -// The IndexAddr instruction yields the address of the element at -// index Index of collection X. Index is an integer expression. -// -// The elements of maps and strings are not addressable; use StringLookup, MapLookup or -// MapUpdate instead. -// -// Dynamically, this instruction panics if X evaluates to a nil *array -// pointer. -// -// Type() returns a (possibly named) *types.Pointer. -// -// Pos() returns the ast.IndexExpr.Lbrack for the index operation, if -// explicit in the source. -// -// Example printed form: -// t3 = IndexAddr <*int> t2 t1 -// -type IndexAddr struct { - register - X Value // slice or *array, - Index Value // numeric index -} - -// The Index instruction yields element Index of array X. -// -// Pos() returns the ast.IndexExpr.Lbrack for the index operation, if -// explicit in the source. -// -// Example printed form: -// t3 = Index t2 t1 -// -type Index struct { - register - X Value // array - Index Value // integer index -} - -// The MapLookup instruction yields element Index of collection X, a map. -// -// If CommaOk, the result is a 2-tuple of the value above and a -// boolean indicating the result of a map membership test for the key. -// The components of the tuple are accessed using Extract. -// -// Pos() returns the ast.IndexExpr.Lbrack, if explicit in the source. -// -// Example printed form: -// t4 = MapLookup t3 t1 -// t6 = MapLookup <(string, bool)> t3 t2 -// -type MapLookup struct { - register - X Value // map - Index Value // key-typed index - CommaOk bool // return a value,ok pair -} - -// The StringLookup instruction yields element Index of collection X, a string. -// Index is an integer expression. -// -// Pos() returns the ast.IndexExpr.Lbrack, if explicit in the source. -// -// Example printed form: -// t3 = StringLookup t2 t1 -// -type StringLookup struct { - register - X Value // string - Index Value // numeric index -} - -// SelectState is a helper for Select. -// It represents one goal state and its corresponding communication. -// -type SelectState struct { - Dir types.ChanDir // direction of case (SendOnly or RecvOnly) - Chan Value // channel to use (for send or receive) - Send Value // value to send (for send) - Pos token.Pos // position of token.ARROW - DebugNode ast.Node // ast.SendStmt or ast.UnaryExpr(<-) [debug mode] -} - -// The Select instruction tests whether (or blocks until) one -// of the specified sent or received states is entered. -// -// Let n be the number of States for which Dir==RECV and Tᵢ (0 ≤ i < n) -// be the element type of each such state's Chan. -// Select returns an n+2-tuple -// (index int, recvOk bool, r₀ T₀, ... rₙ-1 Tₙ-1) -// The tuple's components, described below, must be accessed via the -// Extract instruction. -// -// If Blocking, select waits until exactly one state holds, i.e. a -// channel becomes ready for the designated operation of sending or -// receiving; select chooses one among the ready states -// pseudorandomly, performs the send or receive operation, and sets -// 'index' to the index of the chosen channel. -// -// If !Blocking, select doesn't block if no states hold; instead it -// returns immediately with index equal to -1. -// -// If the chosen channel was used for a receive, the rᵢ component is -// set to the received value, where i is the index of that state among -// all n receive states; otherwise rᵢ has the zero value of type Tᵢ. -// Note that the receive index i is not the same as the state -// index index. -// -// The second component of the triple, recvOk, is a boolean whose value -// is true iff the selected operation was a receive and the receive -// successfully yielded a value. -// -// Pos() returns the ast.SelectStmt.Select. -// -// Example printed form: -// t6 = SelectNonBlocking <(index int, ok bool, int)> [<-t4, t5<-t1] -// t11 = SelectBlocking <(index int, ok bool)> [] -// -type Select struct { - register - States []*SelectState - Blocking bool -} - -// The Range instruction yields an iterator over the domain and range -// of X, which must be a string or map. -// -// Elements are accessed via Next. -// -// Type() returns an opaque and degenerate "rangeIter" type. -// -// Pos() returns the ast.RangeStmt.For. -// -// Example printed form: -// t2 = Range t1 -// -type Range struct { - register - X Value // string or map -} - -// The Next instruction reads and advances the (map or string) -// iterator Iter and returns a 3-tuple value (ok, k, v). If the -// iterator is not exhausted, ok is true and k and v are the next -// elements of the domain and range, respectively. Otherwise ok is -// false and k and v are undefined. -// -// Components of the tuple are accessed using Extract. -// -// The IsString field distinguishes iterators over strings from those -// over maps, as the Type() alone is insufficient: consider -// map[int]rune. -// -// Type() returns a *types.Tuple for the triple (ok, k, v). -// The types of k and/or v may be types.Invalid. -// -// Example printed form: -// t5 = Next <(ok bool, k int, v rune)> t2 -// t5 = Next <(ok bool, k invalid type, v invalid type)> t2 -// -type Next struct { - register - Iter Value - IsString bool // true => string iterator; false => map iterator. -} - -// The TypeAssert instruction tests whether interface value X has type -// AssertedType. -// -// If !CommaOk, on success it returns v, the result of the conversion -// (defined below); on failure it panics. -// -// If CommaOk: on success it returns a pair (v, true) where v is the -// result of the conversion; on failure it returns (z, false) where z -// is AssertedType's zero value. The components of the pair must be -// accessed using the Extract instruction. -// -// If AssertedType is a concrete type, TypeAssert checks whether the -// dynamic type in interface X is equal to it, and if so, the result -// of the conversion is a copy of the value in the interface. -// -// If AssertedType is an interface, TypeAssert checks whether the -// dynamic type of the interface is assignable to it, and if so, the -// result of the conversion is a copy of the interface value X. -// If AssertedType is a superinterface of X.Type(), the operation will -// fail iff the operand is nil. (Contrast with ChangeInterface, which -// performs no nil-check.) -// -// Type() reflects the actual type of the result, possibly a -// 2-types.Tuple; AssertedType is the asserted type. -// -// Pos() returns the ast.CallExpr.Lparen if the instruction arose from -// an explicit T(e) conversion; the ast.TypeAssertExpr.Lparen if the -// instruction arose from an explicit e.(T) operation; or the -// ast.CaseClause.Case if the instruction arose from a case of a -// type-switch statement. -// -// Example printed form: -// t2 = TypeAssert t1 -// t4 = TypeAssert <(value fmt.Stringer, ok bool)> t1 -// -type TypeAssert struct { - register - X Value - AssertedType types.Type - CommaOk bool -} - -// The Extract instruction yields component Index of Tuple. -// -// This is used to access the results of instructions with multiple -// return values, such as Call, TypeAssert, Next, Recv, -// MapLookup and others. -// -// Example printed form: -// t7 = Extract [1] (ok) t4 -// -type Extract struct { - register - Tuple Value - Index int -} - -// Instructions executed for effect. They do not yield a value. -------------------- - -// The Jump instruction transfers control to the sole successor of its -// owning block. -// -// A Jump must be the last instruction of its containing BasicBlock. -// -// Pos() returns NoPos. -// -// Example printed form: -// Jump → b1 -// -type Jump struct { - anInstruction - Comment string -} - -// The Unreachable pseudo-instruction signals that execution cannot -// continue after the preceding function call because it terminates -// the process. -// -// The instruction acts as a control instruction, jumping to the exit -// block. However, this jump will never execute. -// -// An Unreachable instruction must be the last instruction of its -// containing BasicBlock. -// -// Example printed form: -// Unreachable → b1 -// -type Unreachable struct { - anInstruction -} - -// The If instruction transfers control to one of the two successors -// of its owning block, depending on the boolean Cond: the first if -// true, the second if false. -// -// An If instruction must be the last instruction of its containing -// BasicBlock. -// -// Pos() returns the *ast.IfStmt, if explicit in the source. -// -// Example printed form: -// If t2 → b1 b2 -// -type If struct { - anInstruction - Cond Value -} - -type ConstantSwitch struct { - anInstruction - Tag Value - // Constant branch conditions. A nil Value denotes the (implicit - // or explicit) default branch. - Conds []Value -} - -type TypeSwitch struct { - register - Tag Value - Conds []types.Type -} - -// The Return instruction returns values and control back to the calling -// function. -// -// len(Results) is always equal to the number of results in the -// function's signature. -// -// If len(Results) > 1, Return returns a tuple value with the specified -// components which the caller must access using Extract instructions. -// -// There is no instruction to return a ready-made tuple like those -// returned by a "value,ok"-mode TypeAssert, MapLookup or Recv or -// a tail-call to a function with multiple result parameters. -// -// Return must be the last instruction of its containing BasicBlock. -// Such a block has no successors. -// -// Pos() returns the ast.ReturnStmt.Return, if explicit in the source. -// -// Example printed form: -// Return -// Return t1 t2 -// -type Return struct { - anInstruction - Results []Value -} - -// The RunDefers instruction pops and invokes the entire stack of -// procedure calls pushed by Defer instructions in this function. -// -// It is legal to encounter multiple 'rundefers' instructions in a -// single control-flow path through a function; this is useful in -// the combined init() function, for example. -// -// Pos() returns NoPos. -// -// Example printed form: -// RunDefers -// -type RunDefers struct { - anInstruction -} - -// The Panic instruction initiates a panic with value X. -// -// A Panic instruction must be the last instruction of its containing -// BasicBlock, which must have one successor, the exit block. -// -// NB: 'go panic(x)' and 'defer panic(x)' do not use this instruction; -// they are treated as calls to a built-in function. -// -// Pos() returns the ast.CallExpr.Lparen if this panic was explicit -// in the source. -// -// Example printed form: -// Panic t1 -// -type Panic struct { - anInstruction - X Value // an interface{} -} - -// The Go instruction creates a new goroutine and calls the specified -// function within it. -// -// See CallCommon for generic function call documentation. -// -// Pos() returns the ast.GoStmt.Go. -// -// Example printed form: -// Go println t1 -// Go t3 -// GoInvoke t4.Bar t2 -// -type Go struct { - anInstruction - Call CallCommon -} - -// The Defer instruction pushes the specified call onto a stack of -// functions to be called by a RunDefers instruction or by a panic. -// -// See CallCommon for generic function call documentation. -// -// Pos() returns the ast.DeferStmt.Defer. -// -// Example printed form: -// Defer println t1 -// Defer t3 -// DeferInvoke t4.Bar t2 -// -type Defer struct { - anInstruction - Call CallCommon -} - -// The Send instruction sends X on channel Chan. -// -// Pos() returns the ast.SendStmt.Arrow, if explicit in the source. -// -// Example printed form: -// Send t2 t1 -// -type Send struct { - anInstruction - Chan, X Value -} - -// The Recv instruction receives from channel Chan. -// -// If CommaOk, the result is a 2-tuple of the value above -// and a boolean indicating the success of the receive. The -// components of the tuple are accessed using Extract. -// -// Pos() returns the ast.UnaryExpr.OpPos, if explicit in the source. -// For receive operations implicit in ranging over a channel, -// Pos() returns the ast.RangeStmt.For. -// -// Example printed form: -// t2 = Recv t1 -// t3 = Recv <(int, bool)> t1 -type Recv struct { - register - Chan Value - CommaOk bool -} - -// The Store instruction stores Val at address Addr. -// Stores can be of arbitrary types. -// -// Pos() returns the position of the source-level construct most closely -// associated with the memory store operation. -// Since implicit memory stores are numerous and varied and depend upon -// implementation choices, the details are not specified. -// -// Example printed form: -// Store {int} t2 t1 -// -type Store struct { - anInstruction - Addr Value - Val Value -} - -// The BlankStore instruction is emitted for assignments to the blank -// identifier. -// -// BlankStore is a pseudo-instruction: it has no dynamic effect. -// -// Pos() returns NoPos. -// -// Example printed form: -// BlankStore t1 -// -type BlankStore struct { - anInstruction - Val Value -} - -// The MapUpdate instruction updates the association of Map[Key] to -// Value. -// -// Pos() returns the ast.KeyValueExpr.Colon or ast.IndexExpr.Lbrack, -// if explicit in the source. -// -// Example printed form: -// MapUpdate t3 t1 t2 -// -type MapUpdate struct { - anInstruction - Map Value - Key Value - Value Value -} - -// A DebugRef instruction maps a source-level expression Expr to the -// IR value X that represents the value (!IsAddr) or address (IsAddr) -// of that expression. -// -// DebugRef is a pseudo-instruction: it has no dynamic effect. -// -// Pos() returns Expr.Pos(), the start position of the source-level -// expression. This is not the same as the "designated" token as -// documented at Value.Pos(). e.g. CallExpr.Pos() does not return the -// position of the ("designated") Lparen token. -// -// DebugRefs are generated only for functions built with debugging -// enabled; see Package.SetDebugMode() and the GlobalDebug builder -// mode flag. -// -// DebugRefs are not emitted for ast.Idents referring to constants or -// predeclared identifiers, since they are trivial and numerous. -// Nor are they emitted for ast.ParenExprs. -// -// (By representing these as instructions, rather than out-of-band, -// consistency is maintained during transformation passes by the -// ordinary SSA renaming machinery.) -// -// Example printed form: -// ; *ast.CallExpr @ 102:9 is t5 -// ; var x float64 @ 109:72 is x -// ; address of *ast.CompositeLit @ 216:10 is t0 -// -type DebugRef struct { - anInstruction - Expr ast.Expr // the referring expression (never *ast.ParenExpr) - object types.Object // the identity of the source var/func - IsAddr bool // Expr is addressable and X is the address it denotes - X Value // the value or address of Expr -} - -// Embeddable mix-ins and helpers for common parts of other structs. ----------- - -// register is a mix-in embedded by all IR values that are also -// instructions, i.e. virtual registers, and provides a uniform -// implementation of most of the Value interface: Value.Name() is a -// numbered register (e.g. "t0"); the other methods are field accessors. -// -// Temporary names are automatically assigned to each register on -// completion of building a function in IR form. -// -type register struct { - anInstruction - typ types.Type // type of virtual register - referrers []Instruction -} - -type node struct { - source ast.Node - id ID -} - -func (n *node) setID(id ID) { n.id = id } -func (n node) ID() ID { return n.id } - -func (n *node) setSource(source ast.Node) { n.source = source } -func (n *node) Source() ast.Node { return n.source } - -func (n *node) Pos() token.Pos { - if n.source != nil { - return n.source.Pos() - } - return token.NoPos -} - -// anInstruction is a mix-in embedded by all Instructions. -// It provides the implementations of the Block and setBlock methods. -type anInstruction struct { - node - block *BasicBlock // the basic block of this instruction -} - -// CallCommon is contained by Go, Defer and Call to hold the -// common parts of a function or method call. -// -// Each CallCommon exists in one of two modes, function call and -// interface method invocation, or "call" and "invoke" for short. -// -// 1. "call" mode: when Method is nil (!IsInvoke), a CallCommon -// represents an ordinary function call of the value in Value, -// which may be a *Builtin, a *Function or any other value of kind -// 'func'. -// -// Value may be one of: -// (a) a *Function, indicating a statically dispatched call -// to a package-level function, an anonymous function, or -// a method of a named type. -// (b) a *MakeClosure, indicating an immediately applied -// function literal with free variables. -// (c) a *Builtin, indicating a statically dispatched call -// to a built-in function. -// (d) any other value, indicating a dynamically dispatched -// function call. -// StaticCallee returns the identity of the callee in cases -// (a) and (b), nil otherwise. -// -// Args contains the arguments to the call. If Value is a method, -// Args[0] contains the receiver parameter. -// -// Example printed form: -// t3 = Call <()> println t1 t2 -// Go t3 -// Defer t3 -// -// 2. "invoke" mode: when Method is non-nil (IsInvoke), a CallCommon -// represents a dynamically dispatched call to an interface method. -// In this mode, Value is the interface value and Method is the -// interface's abstract method. Note: an abstract method may be -// shared by multiple interfaces due to embedding; Value.Type() -// provides the specific interface used for this call. -// -// Value is implicitly supplied to the concrete method implementation -// as the receiver parameter; in other words, Args[0] holds not the -// receiver but the first true argument. -// -// Example printed form: -// t6 = Invoke t5.String -// GoInvoke t4.Bar t2 -// DeferInvoke t4.Bar t2 -// -// For all calls to variadic functions (Signature().Variadic()), -// the last element of Args is a slice. -// -type CallCommon struct { - Value Value // receiver (invoke mode) or func value (call mode) - Method *types.Func // abstract method (invoke mode) - Args []Value // actual parameters (in static method call, includes receiver) - Results Value -} - -// IsInvoke returns true if this call has "invoke" (not "call") mode. -func (c *CallCommon) IsInvoke() bool { - return c.Method != nil -} - -// Signature returns the signature of the called function. -// -// For an "invoke"-mode call, the signature of the interface method is -// returned. -// -// In either "call" or "invoke" mode, if the callee is a method, its -// receiver is represented by sig.Recv, not sig.Params().At(0). -// -func (c *CallCommon) Signature() *types.Signature { - if c.Method != nil { - return c.Method.Type().(*types.Signature) - } - return c.Value.Type().Underlying().(*types.Signature) -} - -// StaticCallee returns the callee if this is a trivially static -// "call"-mode call to a function. -func (c *CallCommon) StaticCallee() *Function { - switch fn := c.Value.(type) { - case *Function: - return fn - case *MakeClosure: - return fn.Fn.(*Function) - } - return nil -} - -// Description returns a description of the mode of this call suitable -// for a user interface, e.g., "static method call". -func (c *CallCommon) Description() string { - switch fn := c.Value.(type) { - case *Builtin: - return "built-in function call" - case *MakeClosure: - return "static function closure call" - case *Function: - if fn.Signature.Recv() != nil { - return "static method call" - } - return "static function call" - } - if c.IsInvoke() { - return "dynamic method call" // ("invoke" mode) - } - return "dynamic function call" -} - -// The CallInstruction interface, implemented by *Go, *Defer and *Call, -// exposes the common parts of function-calling instructions, -// yet provides a way back to the Value defined by *Call alone. -// -type CallInstruction interface { - Instruction - Common() *CallCommon // returns the common parts of the call - Value() *Call -} - -func (s *Call) Common() *CallCommon { return &s.Call } -func (s *Defer) Common() *CallCommon { return &s.Call } -func (s *Go) Common() *CallCommon { return &s.Call } - -func (s *Call) Value() *Call { return s } -func (s *Defer) Value() *Call { return nil } -func (s *Go) Value() *Call { return nil } - -func (v *Builtin) Type() types.Type { return v.sig } -func (v *Builtin) Name() string { return v.name } -func (*Builtin) Referrers() *[]Instruction { return nil } -func (v *Builtin) Pos() token.Pos { return token.NoPos } -func (v *Builtin) Object() types.Object { return types.Universe.Lookup(v.name) } -func (v *Builtin) Parent() *Function { return nil } - -func (v *FreeVar) Type() types.Type { return v.typ } -func (v *FreeVar) Name() string { return v.name } -func (v *FreeVar) Referrers() *[]Instruction { return &v.referrers } -func (v *FreeVar) Parent() *Function { return v.parent } - -func (v *Global) Type() types.Type { return v.typ } -func (v *Global) Name() string { return v.name } -func (v *Global) Parent() *Function { return nil } -func (v *Global) Referrers() *[]Instruction { return nil } -func (v *Global) Token() token.Token { return token.VAR } -func (v *Global) Object() types.Object { return v.object } -func (v *Global) String() string { return v.RelString(nil) } -func (v *Global) Package() *Package { return v.Pkg } -func (v *Global) RelString(from *types.Package) string { return relString(v, from) } - -func (v *Function) Name() string { return v.name } -func (v *Function) Type() types.Type { return v.Signature } -func (v *Function) Token() token.Token { return token.FUNC } -func (v *Function) Object() types.Object { return v.object } -func (v *Function) String() string { return v.RelString(nil) } -func (v *Function) Package() *Package { return v.Pkg } -func (v *Function) Parent() *Function { return v.parent } -func (v *Function) Referrers() *[]Instruction { - if v.parent != nil { - return &v.referrers - } - return nil -} - -func (v *Parameter) Object() types.Object { return v.object } - -func (v *Alloc) Type() types.Type { return v.typ } -func (v *Alloc) Referrers() *[]Instruction { return &v.referrers } - -func (v *register) Type() types.Type { return v.typ } -func (v *register) setType(typ types.Type) { v.typ = typ } -func (v *register) Name() string { return fmt.Sprintf("t%d", v.id) } -func (v *register) Referrers() *[]Instruction { return &v.referrers } - -func (v *anInstruction) Parent() *Function { return v.block.parent } -func (v *anInstruction) Block() *BasicBlock { return v.block } -func (v *anInstruction) setBlock(block *BasicBlock) { v.block = block } -func (v *anInstruction) Referrers() *[]Instruction { return nil } - -func (t *Type) Name() string { return t.object.Name() } -func (t *Type) Pos() token.Pos { return t.object.Pos() } -func (t *Type) Type() types.Type { return t.object.Type() } -func (t *Type) Token() token.Token { return token.TYPE } -func (t *Type) Object() types.Object { return t.object } -func (t *Type) String() string { return t.RelString(nil) } -func (t *Type) Package() *Package { return t.pkg } -func (t *Type) RelString(from *types.Package) string { return relString(t, from) } - -func (c *NamedConst) Name() string { return c.object.Name() } -func (c *NamedConst) Pos() token.Pos { return c.object.Pos() } -func (c *NamedConst) String() string { return c.RelString(nil) } -func (c *NamedConst) Type() types.Type { return c.object.Type() } -func (c *NamedConst) Token() token.Token { return token.CONST } -func (c *NamedConst) Object() types.Object { return c.object } -func (c *NamedConst) Package() *Package { return c.pkg } -func (c *NamedConst) RelString(from *types.Package) string { return relString(c, from) } - -// Func returns the package-level function of the specified name, -// or nil if not found. -// -func (p *Package) Func(name string) (f *Function) { - f, _ = p.Members[name].(*Function) - return -} - -// Var returns the package-level variable of the specified name, -// or nil if not found. -// -func (p *Package) Var(name string) (g *Global) { - g, _ = p.Members[name].(*Global) - return -} - -// Const returns the package-level constant of the specified name, -// or nil if not found. -// -func (p *Package) Const(name string) (c *NamedConst) { - c, _ = p.Members[name].(*NamedConst) - return -} - -// Type returns the package-level type of the specified name, -// or nil if not found. -// -func (p *Package) Type(name string) (t *Type) { - t, _ = p.Members[name].(*Type) - return -} - -func (s *DebugRef) Pos() token.Pos { return s.Expr.Pos() } - -// Operands. - -func (v *Alloc) Operands(rands []*Value) []*Value { - return rands -} - -func (v *BinOp) Operands(rands []*Value) []*Value { - return append(rands, &v.X, &v.Y) -} - -func (c *CallCommon) Operands(rands []*Value) []*Value { - rands = append(rands, &c.Value) - for i := range c.Args { - rands = append(rands, &c.Args[i]) - } - return rands -} - -func (s *Go) Operands(rands []*Value) []*Value { - return s.Call.Operands(rands) -} - -func (s *Call) Operands(rands []*Value) []*Value { - return s.Call.Operands(rands) -} - -func (s *Defer) Operands(rands []*Value) []*Value { - return s.Call.Operands(rands) -} - -func (v *ChangeInterface) Operands(rands []*Value) []*Value { - return append(rands, &v.X) -} - -func (v *ChangeType) Operands(rands []*Value) []*Value { - return append(rands, &v.X) -} - -func (v *Convert) Operands(rands []*Value) []*Value { - return append(rands, &v.X) -} - -func (s *DebugRef) Operands(rands []*Value) []*Value { - return append(rands, &s.X) -} - -func (v *Extract) Operands(rands []*Value) []*Value { - return append(rands, &v.Tuple) -} - -func (v *Field) Operands(rands []*Value) []*Value { - return append(rands, &v.X) -} - -func (v *FieldAddr) Operands(rands []*Value) []*Value { - return append(rands, &v.X) -} - -func (s *If) Operands(rands []*Value) []*Value { - return append(rands, &s.Cond) -} - -func (s *ConstantSwitch) Operands(rands []*Value) []*Value { - rands = append(rands, &s.Tag) - for i := range s.Conds { - rands = append(rands, &s.Conds[i]) - } - return rands -} - -func (s *TypeSwitch) Operands(rands []*Value) []*Value { - rands = append(rands, &s.Tag) - return rands -} - -func (v *Index) Operands(rands []*Value) []*Value { - return append(rands, &v.X, &v.Index) -} - -func (v *IndexAddr) Operands(rands []*Value) []*Value { - return append(rands, &v.X, &v.Index) -} - -func (*Jump) Operands(rands []*Value) []*Value { - return rands -} - -func (*Unreachable) Operands(rands []*Value) []*Value { - return rands -} - -func (v *MapLookup) Operands(rands []*Value) []*Value { - return append(rands, &v.X, &v.Index) -} - -func (v *StringLookup) Operands(rands []*Value) []*Value { - return append(rands, &v.X, &v.Index) -} - -func (v *MakeChan) Operands(rands []*Value) []*Value { - return append(rands, &v.Size) -} - -func (v *MakeClosure) Operands(rands []*Value) []*Value { - rands = append(rands, &v.Fn) - for i := range v.Bindings { - rands = append(rands, &v.Bindings[i]) - } - return rands -} - -func (v *MakeInterface) Operands(rands []*Value) []*Value { - return append(rands, &v.X) -} - -func (v *MakeMap) Operands(rands []*Value) []*Value { - return append(rands, &v.Reserve) -} - -func (v *MakeSlice) Operands(rands []*Value) []*Value { - return append(rands, &v.Len, &v.Cap) -} - -func (v *MapUpdate) Operands(rands []*Value) []*Value { - return append(rands, &v.Map, &v.Key, &v.Value) -} - -func (v *Next) Operands(rands []*Value) []*Value { - return append(rands, &v.Iter) -} - -func (s *Panic) Operands(rands []*Value) []*Value { - return append(rands, &s.X) -} - -func (v *Sigma) Operands(rands []*Value) []*Value { - return append(rands, &v.X) -} - -func (v *Phi) Operands(rands []*Value) []*Value { - for i := range v.Edges { - rands = append(rands, &v.Edges[i]) - } - return rands -} - -func (v *Range) Operands(rands []*Value) []*Value { - return append(rands, &v.X) -} - -func (s *Return) Operands(rands []*Value) []*Value { - for i := range s.Results { - rands = append(rands, &s.Results[i]) - } - return rands -} - -func (*RunDefers) Operands(rands []*Value) []*Value { - return rands -} - -func (v *Select) Operands(rands []*Value) []*Value { - for i := range v.States { - rands = append(rands, &v.States[i].Chan, &v.States[i].Send) - } - return rands -} - -func (s *Send) Operands(rands []*Value) []*Value { - return append(rands, &s.Chan, &s.X) -} - -func (recv *Recv) Operands(rands []*Value) []*Value { - return append(rands, &recv.Chan) -} - -func (v *Slice) Operands(rands []*Value) []*Value { - return append(rands, &v.X, &v.Low, &v.High, &v.Max) -} - -func (s *Store) Operands(rands []*Value) []*Value { - return append(rands, &s.Addr, &s.Val) -} - -func (s *BlankStore) Operands(rands []*Value) []*Value { - return append(rands, &s.Val) -} - -func (v *TypeAssert) Operands(rands []*Value) []*Value { - return append(rands, &v.X) -} - -func (v *UnOp) Operands(rands []*Value) []*Value { - return append(rands, &v.X) -} - -func (v *Load) Operands(rands []*Value) []*Value { - return append(rands, &v.X) -} - -// Non-Instruction Values: -func (v *Builtin) Operands(rands []*Value) []*Value { return rands } -func (v *FreeVar) Operands(rands []*Value) []*Value { return rands } -func (v *Const) Operands(rands []*Value) []*Value { return rands } -func (v *Function) Operands(rands []*Value) []*Value { return rands } -func (v *Global) Operands(rands []*Value) []*Value { return rands } -func (v *Parameter) Operands(rands []*Value) []*Value { return rands } diff --git a/vendor/honnef.co/go/tools/ir/staticcheck.conf b/vendor/honnef.co/go/tools/ir/staticcheck.conf deleted file mode 100644 index d7b38bc35..000000000 --- a/vendor/honnef.co/go/tools/ir/staticcheck.conf +++ /dev/null @@ -1,3 +0,0 @@ -# ssa/... is mostly imported from upstream and we don't want to -# deviate from it too much, hence disabling SA1019 -checks = ["inherit", "-SA1019"] diff --git a/vendor/honnef.co/go/tools/ir/util.go b/vendor/honnef.co/go/tools/ir/util.go deleted file mode 100644 index df0f8bf97..000000000 --- a/vendor/honnef.co/go/tools/ir/util.go +++ /dev/null @@ -1,89 +0,0 @@ -// Copyright 2013 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package ir - -// This file defines a number of miscellaneous utility functions. - -import ( - "fmt" - "go/ast" - "go/token" - "go/types" - "io" - "os" - - "golang.org/x/tools/go/ast/astutil" -) - -//// AST utilities - -func unparen(e ast.Expr) ast.Expr { return astutil.Unparen(e) } - -// isBlankIdent returns true iff e is an Ident with name "_". -// They have no associated types.Object, and thus no type. -// -func isBlankIdent(e ast.Expr) bool { - id, ok := e.(*ast.Ident) - return ok && id.Name == "_" -} - -//// Type utilities. Some of these belong in go/types. - -// isPointer returns true for types whose underlying type is a pointer. -func isPointer(typ types.Type) bool { - _, ok := typ.Underlying().(*types.Pointer) - return ok -} - -func isInterface(T types.Type) bool { return types.IsInterface(T) } - -// deref returns a pointer's element type; otherwise it returns typ. -func deref(typ types.Type) types.Type { - if p, ok := typ.Underlying().(*types.Pointer); ok { - return p.Elem() - } - return typ -} - -// recvType returns the receiver type of method obj. -func recvType(obj *types.Func) types.Type { - return obj.Type().(*types.Signature).Recv().Type() -} - -// logStack prints the formatted "start" message to stderr and -// returns a closure that prints the corresponding "end" message. -// Call using 'defer logStack(...)()' to show builder stack on panic. -// Don't forget trailing parens! -// -func logStack(format string, args ...interface{}) func() { - msg := fmt.Sprintf(format, args...) - io.WriteString(os.Stderr, msg) - io.WriteString(os.Stderr, "\n") - return func() { - io.WriteString(os.Stderr, msg) - io.WriteString(os.Stderr, " end\n") - } -} - -// newVar creates a 'var' for use in a types.Tuple. -func newVar(name string, typ types.Type) *types.Var { - return types.NewParam(token.NoPos, nil, name, typ) -} - -// anonVar creates an anonymous 'var' for use in a types.Tuple. -func anonVar(typ types.Type) *types.Var { - return newVar("", typ) -} - -var lenResults = types.NewTuple(anonVar(tInt)) - -// makeLen returns the len builtin specialized to type func(T)int. -func makeLen(T types.Type) *Builtin { - lenParams := types.NewTuple(anonVar(T)) - return &Builtin{ - name: "len", - sig: types.NewSignature(nil, lenParams, lenResults, false), - } -} diff --git a/vendor/honnef.co/go/tools/ir/wrappers.go b/vendor/honnef.co/go/tools/ir/wrappers.go deleted file mode 100644 index c9d903d23..000000000 --- a/vendor/honnef.co/go/tools/ir/wrappers.go +++ /dev/null @@ -1,290 +0,0 @@ -// Copyright 2013 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package ir - -// This file defines synthesis of Functions that delegate to declared -// methods; they come in three kinds: -// -// (1) wrappers: methods that wrap declared methods, performing -// implicit pointer indirections and embedded field selections. -// -// (2) thunks: funcs that wrap declared methods. Like wrappers, -// thunks perform indirections and field selections. The thunk's -// first parameter is used as the receiver for the method call. -// -// (3) bounds: funcs that wrap declared methods. The bound's sole -// free variable, supplied by a closure, is used as the receiver -// for the method call. No indirections or field selections are -// performed since they can be done before the call. - -import ( - "fmt" - - "go/types" -) - -// -- wrappers ----------------------------------------------------------- - -// makeWrapper returns a synthetic method that delegates to the -// declared method denoted by meth.Obj(), first performing any -// necessary pointer indirections or field selections implied by meth. -// -// The resulting method's receiver type is meth.Recv(). -// -// This function is versatile but quite subtle! Consider the -// following axes of variation when making changes: -// - optional receiver indirection -// - optional implicit field selections -// - meth.Obj() may denote a concrete or an interface method -// - the result may be a thunk or a wrapper. -// -// EXCLUSIVE_LOCKS_REQUIRED(prog.methodsMu) -// -func makeWrapper(prog *Program, sel *types.Selection) *Function { - obj := sel.Obj().(*types.Func) // the declared function - sig := sel.Type().(*types.Signature) // type of this wrapper - - var recv *types.Var // wrapper's receiver or thunk's params[0] - name := obj.Name() - var description string - var start int // first regular param - if sel.Kind() == types.MethodExpr { - name += "$thunk" - description = "thunk" - recv = sig.Params().At(0) - start = 1 - } else { - description = "wrapper" - recv = sig.Recv() - } - - description = fmt.Sprintf("%s for %s", description, sel.Obj()) - if prog.mode&LogSource != 0 { - defer logStack("make %s to (%s)", description, recv.Type())() - } - fn := &Function{ - name: name, - method: sel, - object: obj, - Signature: sig, - Synthetic: description, - Prog: prog, - } - fn.initHTML(prog.PrintFunc) - fn.startBody() - fn.addSpilledParam(recv, nil) - createParams(fn, start) - - indices := sel.Index() - - var v Value = fn.Locals[0] // spilled receiver - if isPointer(sel.Recv()) { - v = emitLoad(fn, v, nil) - - // For simple indirection wrappers, perform an informative nil-check: - // "value method (T).f called using nil *T pointer" - if len(indices) == 1 && !isPointer(recvType(obj)) { - var c Call - c.Call.Value = &Builtin{ - name: "ir:wrapnilchk", - sig: types.NewSignature(nil, - types.NewTuple(anonVar(sel.Recv()), anonVar(tString), anonVar(tString)), - types.NewTuple(anonVar(sel.Recv())), false), - } - c.Call.Args = []Value{ - v, - emitConst(fn, stringConst(deref(sel.Recv()).String())), - emitConst(fn, stringConst(sel.Obj().Name())), - } - c.setType(v.Type()) - v = fn.emit(&c, nil) - } - } - - // Invariant: v is a pointer, either - // value of *A receiver param, or - // address of A spilled receiver. - - // We use pointer arithmetic (FieldAddr possibly followed by - // Load) in preference to value extraction (Field possibly - // preceded by Load). - - v = emitImplicitSelections(fn, v, indices[:len(indices)-1], nil) - - // Invariant: v is a pointer, either - // value of implicit *C field, or - // address of implicit C field. - - var c Call - if r := recvType(obj); !isInterface(r) { // concrete method - if !isPointer(r) { - v = emitLoad(fn, v, nil) - } - c.Call.Value = prog.declaredFunc(obj) - c.Call.Args = append(c.Call.Args, v) - } else { - c.Call.Method = obj - c.Call.Value = emitLoad(fn, v, nil) - } - for _, arg := range fn.Params[1:] { - c.Call.Args = append(c.Call.Args, arg) - } - emitTailCall(fn, &c, nil) - fn.finishBody() - return fn -} - -// createParams creates parameters for wrapper method fn based on its -// Signature.Params, which do not include the receiver. -// start is the index of the first regular parameter to use. -// -func createParams(fn *Function, start int) { - tparams := fn.Signature.Params() - for i, n := start, tparams.Len(); i < n; i++ { - fn.addParamObj(tparams.At(i), nil) - } -} - -// -- bounds ----------------------------------------------------------- - -// makeBound returns a bound method wrapper (or "bound"), a synthetic -// function that delegates to a concrete or interface method denoted -// by obj. The resulting function has no receiver, but has one free -// variable which will be used as the method's receiver in the -// tail-call. -// -// Use MakeClosure with such a wrapper to construct a bound method -// closure. e.g.: -// -// type T int or: type T interface { meth() } -// func (t T) meth() -// var t T -// f := t.meth -// f() // calls t.meth() -// -// f is a closure of a synthetic wrapper defined as if by: -// -// f := func() { return t.meth() } -// -// Unlike makeWrapper, makeBound need perform no indirection or field -// selections because that can be done before the closure is -// constructed. -// -// EXCLUSIVE_LOCKS_ACQUIRED(meth.Prog.methodsMu) -// -func makeBound(prog *Program, obj *types.Func) *Function { - prog.methodsMu.Lock() - defer prog.methodsMu.Unlock() - fn, ok := prog.bounds[obj] - if !ok { - description := fmt.Sprintf("bound method wrapper for %s", obj) - if prog.mode&LogSource != 0 { - defer logStack("%s", description)() - } - fn = &Function{ - name: obj.Name() + "$bound", - object: obj, - Signature: changeRecv(obj.Type().(*types.Signature), nil), // drop receiver - Synthetic: description, - Prog: prog, - } - fn.initHTML(prog.PrintFunc) - - fv := &FreeVar{name: "recv", typ: recvType(obj), parent: fn} - fn.FreeVars = []*FreeVar{fv} - fn.startBody() - createParams(fn, 0) - var c Call - - if !isInterface(recvType(obj)) { // concrete - c.Call.Value = prog.declaredFunc(obj) - c.Call.Args = []Value{fv} - } else { - c.Call.Value = fv - c.Call.Method = obj - } - for _, arg := range fn.Params { - c.Call.Args = append(c.Call.Args, arg) - } - emitTailCall(fn, &c, nil) - fn.finishBody() - - prog.bounds[obj] = fn - } - return fn -} - -// -- thunks ----------------------------------------------------------- - -// makeThunk returns a thunk, a synthetic function that delegates to a -// concrete or interface method denoted by sel.Obj(). The resulting -// function has no receiver, but has an additional (first) regular -// parameter. -// -// Precondition: sel.Kind() == types.MethodExpr. -// -// type T int or: type T interface { meth() } -// func (t T) meth() -// f := T.meth -// var t T -// f(t) // calls t.meth() -// -// f is a synthetic wrapper defined as if by: -// -// f := func(t T) { return t.meth() } -// -// TODO(adonovan): opt: currently the stub is created even when used -// directly in a function call: C.f(i, 0). This is less efficient -// than inlining the stub. -// -// EXCLUSIVE_LOCKS_ACQUIRED(meth.Prog.methodsMu) -// -func makeThunk(prog *Program, sel *types.Selection) *Function { - if sel.Kind() != types.MethodExpr { - panic(sel) - } - - key := selectionKey{ - kind: sel.Kind(), - recv: sel.Recv(), - obj: sel.Obj(), - index: fmt.Sprint(sel.Index()), - indirect: sel.Indirect(), - } - - prog.methodsMu.Lock() - defer prog.methodsMu.Unlock() - - // Canonicalize key.recv to avoid constructing duplicate thunks. - canonRecv, ok := prog.canon.At(key.recv).(types.Type) - if !ok { - canonRecv = key.recv - prog.canon.Set(key.recv, canonRecv) - } - key.recv = canonRecv - - fn, ok := prog.thunks[key] - if !ok { - fn = makeWrapper(prog, sel) - if fn.Signature.Recv() != nil { - panic(fn) // unexpected receiver - } - prog.thunks[key] = fn - } - return fn -} - -func changeRecv(s *types.Signature, recv *types.Var) *types.Signature { - return types.NewSignature(recv, s.Params(), s.Results(), s.Variadic()) -} - -// selectionKey is like types.Selection but a usable map key. -type selectionKey struct { - kind types.SelectionKind - recv types.Type // canonicalized via Program.canon - obj types.Object - index string - indirect bool -} diff --git a/vendor/honnef.co/go/tools/ir/write.go b/vendor/honnef.co/go/tools/ir/write.go deleted file mode 100644 index b936bc985..000000000 --- a/vendor/honnef.co/go/tools/ir/write.go +++ /dev/null @@ -1,5 +0,0 @@ -package ir - -func NewJump(parent *BasicBlock) *Jump { - return &Jump{anInstruction{block: parent}, ""} -} diff --git a/vendor/honnef.co/go/tools/lint/lint.go b/vendor/honnef.co/go/tools/lint/lint.go index d9ae03738..de5a8f128 100644 --- a/vendor/honnef.co/go/tools/lint/lint.go +++ b/vendor/honnef.co/go/tools/lint/lint.go @@ -1,9 +1,8 @@ // Package lint provides the foundation for tools like staticcheck -package lint +package lint // import "honnef.co/go/tools/lint" import ( "bytes" - "encoding/gob" "fmt" "go/scanner" "go/token" @@ -18,7 +17,6 @@ import ( "golang.org/x/tools/go/analysis" "golang.org/x/tools/go/packages" "honnef.co/go/tools/config" - "honnef.co/go/tools/internal/cache" ) type Documentation struct { @@ -121,21 +119,6 @@ type Problem struct { Message string Check string Severity Severity - Related []Related -} - -type Related struct { - Pos token.Position - End token.Position - Message string -} - -func (p Problem) Equal(o Problem) bool { - return p.Pos == o.Pos && - p.End == o.End && - p.Message == o.Message && - p.Check == o.Check && - p.Severity == o.Severity } func (p *Problem) String() string { @@ -149,7 +132,6 @@ type Linter struct { GoVersion int Config config.Config Stats Stats - RepeatAnalyzers uint } type CumulativeChecker interface { @@ -202,7 +184,6 @@ func (l *Linter) Lint(cfg *packages.Config, patterns []string) ([]Problem, error return nil, err } r.goVersion = l.GoVersion - r.repeatAnalyzers = l.RepeatAnalyzers pkgs, err := r.Run(cfg, patterns, allowedAnalyzers, hasCumulative) if err != nil { @@ -283,12 +264,10 @@ func (l *Linter) Lint(cfg *packages.Config, patterns []string) ([]Problem, error } atomic.StoreUint32(&r.stats.State, StateCumulative) + var problems []Problem for _, cum := range l.CumulativeCheckers { for _, res := range cum.Result() { pkg := tpkgToPkg[res.Pkg()] - if pkg == nil { - panic(fmt.Sprintf("analyzer %s flagged object %s in package %s, a package that we aren't tracking", cum.Analyzer(), res, res.Pkg())) - } allowedChecks := FilterChecks(allowedAnalyzers, pkg.cfg.Merge(l.Config).Checks) if allowedChecks[cum.Analyzer().Name] { pos := DisplayPosition(pkg.Fset, res.Pos()) @@ -299,32 +278,11 @@ func (l *Linter) Lint(cfg *packages.Config, patterns []string) ([]Problem, error continue } p := cum.ProblemObject(pkg.Fset, res) - pkg.problems = append(pkg.problems, p) + problems = append(problems, p) } } } - for _, pkg := range pkgs { - if !pkg.fromSource { - // Don't cache packages that we loaded from the cache - continue - } - cpkg := cachedPackage{ - Problems: pkg.problems, - Ignores: pkg.ignores, - Config: pkg.cfg, - } - buf := &bytes.Buffer{} - if err := gob.NewEncoder(buf).Encode(cpkg); err != nil { - return nil, err - } - id := cache.Subkey(pkg.actionID, "data "+r.problemsCacheKey) - if err := r.cache.PutBytes(id, buf.Bytes()); err != nil { - return nil, err - } - } - - var problems []Problem for _, pkg := range pkgs { for _, ig := range pkg.ignores { for i := range pkg.problems { @@ -333,6 +291,12 @@ func (l *Linter) Lint(cfg *packages.Config, patterns []string) ([]Problem, error p.Severity = Ignored } } + for i := range problems { + p := &problems[i] + if ig.Match(*p) { + p.Severity = Ignored + } + } } if pkg.cfg == nil { @@ -408,7 +372,7 @@ func (l *Linter) Lint(cfg *packages.Config, patterns []string) ([]Problem, error for i, p := range problems[1:] { // We may encounter duplicate problems because one file // can be part of many packages. - if !problems[i].Equal(p) { + if problems[i] != p { out = append(out, p) } } @@ -458,6 +422,10 @@ func FilterChecks(allChecks []*analysis.Analyzer, checks []string) map[string]bo return allowedChecks } +type Positioner interface { + Pos() token.Pos +} + func DisplayPosition(fset *token.FileSet, p token.Pos) token.Position { if p == token.NoPos { return token.Position{} diff --git a/vendor/honnef.co/go/tools/lint/lintdsl/lintdsl.go b/vendor/honnef.co/go/tools/lint/lintdsl/lintdsl.go index 4408aff25..3b939e95f 100644 --- a/vendor/honnef.co/go/tools/lint/lintdsl/lintdsl.go +++ b/vendor/honnef.co/go/tools/lint/lintdsl/lintdsl.go @@ -4,14 +4,283 @@ package lintdsl import ( "bytes" + "flag" "fmt" "go/ast" - "go/format" + "go/constant" + "go/printer" + "go/token" + "go/types" + "strings" "golang.org/x/tools/go/analysis" - "honnef.co/go/tools/pattern" + "honnef.co/go/tools/facts" + "honnef.co/go/tools/lint" + "honnef.co/go/tools/ssa" ) +type packager interface { + Package() *ssa.Package +} + +func CallName(call *ssa.CallCommon) string { + if call.IsInvoke() { + return "" + } + switch v := call.Value.(type) { + case *ssa.Function: + fn, ok := v.Object().(*types.Func) + if !ok { + return "" + } + return lint.FuncName(fn) + case *ssa.Builtin: + return v.Name() + } + return "" +} + +func IsCallTo(call *ssa.CallCommon, name string) bool { return CallName(call) == name } +func IsType(T types.Type, name string) bool { return types.TypeString(T, nil) == name } + +func FilterDebug(instr []ssa.Instruction) []ssa.Instruction { + var out []ssa.Instruction + for _, ins := range instr { + if _, ok := ins.(*ssa.DebugRef); !ok { + out = append(out, ins) + } + } + return out +} + +func IsExample(fn *ssa.Function) bool { + if !strings.HasPrefix(fn.Name(), "Example") { + return false + } + f := fn.Prog.Fset.File(fn.Pos()) + if f == nil { + return false + } + return strings.HasSuffix(f.Name(), "_test.go") +} + +func IsPointerLike(T types.Type) bool { + switch T := T.Underlying().(type) { + case *types.Interface, *types.Chan, *types.Map, *types.Signature, *types.Pointer: + return true + case *types.Basic: + return T.Kind() == types.UnsafePointer + } + return false +} + +func IsIdent(expr ast.Expr, ident string) bool { + id, ok := expr.(*ast.Ident) + return ok && id.Name == ident +} + +// isBlank returns whether id is the blank identifier "_". +// If id == nil, the answer is false. +func IsBlank(id ast.Expr) bool { + ident, _ := id.(*ast.Ident) + return ident != nil && ident.Name == "_" +} + +func IsIntLiteral(expr ast.Expr, literal string) bool { + lit, ok := expr.(*ast.BasicLit) + return ok && lit.Kind == token.INT && lit.Value == literal +} + +// Deprecated: use IsIntLiteral instead +func IsZero(expr ast.Expr) bool { + return IsIntLiteral(expr, "0") +} + +func IsOfType(pass *analysis.Pass, expr ast.Expr, name string) bool { + return IsType(pass.TypesInfo.TypeOf(expr), name) +} + +func IsInTest(pass *analysis.Pass, node lint.Positioner) bool { + // FIXME(dh): this doesn't work for global variables with + // initializers + f := pass.Fset.File(node.Pos()) + return f != nil && strings.HasSuffix(f.Name(), "_test.go") +} + +func IsInMain(pass *analysis.Pass, node lint.Positioner) bool { + if node, ok := node.(packager); ok { + return node.Package().Pkg.Name() == "main" + } + return pass.Pkg.Name() == "main" +} + +func SelectorName(pass *analysis.Pass, expr *ast.SelectorExpr) string { + info := pass.TypesInfo + sel := info.Selections[expr] + if sel == nil { + if x, ok := expr.X.(*ast.Ident); ok { + pkg, ok := info.ObjectOf(x).(*types.PkgName) + if !ok { + // This shouldn't happen + return fmt.Sprintf("%s.%s", x.Name, expr.Sel.Name) + } + return fmt.Sprintf("%s.%s", pkg.Imported().Path(), expr.Sel.Name) + } + panic(fmt.Sprintf("unsupported selector: %v", expr)) + } + return fmt.Sprintf("(%s).%s", sel.Recv(), sel.Obj().Name()) +} + +func IsNil(pass *analysis.Pass, expr ast.Expr) bool { + return pass.TypesInfo.Types[expr].IsNil() +} + +func BoolConst(pass *analysis.Pass, expr ast.Expr) bool { + val := pass.TypesInfo.ObjectOf(expr.(*ast.Ident)).(*types.Const).Val() + return constant.BoolVal(val) +} + +func IsBoolConst(pass *analysis.Pass, expr ast.Expr) bool { + // We explicitly don't support typed bools because more often than + // not, custom bool types are used as binary enums and the + // explicit comparison is desired. + + ident, ok := expr.(*ast.Ident) + if !ok { + return false + } + obj := pass.TypesInfo.ObjectOf(ident) + c, ok := obj.(*types.Const) + if !ok { + return false + } + basic, ok := c.Type().(*types.Basic) + if !ok { + return false + } + if basic.Kind() != types.UntypedBool && basic.Kind() != types.Bool { + return false + } + return true +} + +func ExprToInt(pass *analysis.Pass, expr ast.Expr) (int64, bool) { + tv := pass.TypesInfo.Types[expr] + if tv.Value == nil { + return 0, false + } + if tv.Value.Kind() != constant.Int { + return 0, false + } + return constant.Int64Val(tv.Value) +} + +func ExprToString(pass *analysis.Pass, expr ast.Expr) (string, bool) { + val := pass.TypesInfo.Types[expr].Value + if val == nil { + return "", false + } + if val.Kind() != constant.String { + return "", false + } + return constant.StringVal(val), true +} + +// Dereference returns a pointer's element type; otherwise it returns +// T. +func Dereference(T types.Type) types.Type { + if p, ok := T.Underlying().(*types.Pointer); ok { + return p.Elem() + } + return T +} + +// DereferenceR returns a pointer's element type; otherwise it returns +// T. If the element type is itself a pointer, DereferenceR will be +// applied recursively. +func DereferenceR(T types.Type) types.Type { + if p, ok := T.Underlying().(*types.Pointer); ok { + return DereferenceR(p.Elem()) + } + return T +} + +func IsGoVersion(pass *analysis.Pass, minor int) bool { + version := pass.Analyzer.Flags.Lookup("go").Value.(flag.Getter).Get().(int) + return version >= minor +} + +func CallNameAST(pass *analysis.Pass, call *ast.CallExpr) string { + switch fun := call.Fun.(type) { + case *ast.SelectorExpr: + fn, ok := pass.TypesInfo.ObjectOf(fun.Sel).(*types.Func) + if !ok { + return "" + } + return lint.FuncName(fn) + case *ast.Ident: + obj := pass.TypesInfo.ObjectOf(fun) + switch obj := obj.(type) { + case *types.Func: + return lint.FuncName(obj) + case *types.Builtin: + return obj.Name() + default: + return "" + } + default: + return "" + } +} + +func IsCallToAST(pass *analysis.Pass, node ast.Node, name string) bool { + call, ok := node.(*ast.CallExpr) + if !ok { + return false + } + return CallNameAST(pass, call) == name +} + +func IsCallToAnyAST(pass *analysis.Pass, node ast.Node, names ...string) bool { + for _, name := range names { + if IsCallToAST(pass, node, name) { + return true + } + } + return false +} + +func Render(pass *analysis.Pass, x interface{}) string { + var buf bytes.Buffer + if err := printer.Fprint(&buf, pass.Fset, x); err != nil { + panic(err) + } + return buf.String() +} + +func RenderArgs(pass *analysis.Pass, args []ast.Expr) string { + var ss []string + for _, arg := range args { + ss = append(ss, Render(pass, arg)) + } + return strings.Join(ss, ", ") +} + +func Preamble(f *ast.File) string { + cutoff := f.Package + if f.Doc != nil { + cutoff = f.Doc.Pos() + } + var out []string + for _, cmt := range f.Comments { + if cmt.Pos() >= cutoff { + break + } + out = append(out, cmt.Text()) + } + return strings.Join(out, "\n") +} + func Inspect(node ast.Node, fn func(node ast.Node) bool) { if node == nil { return @@ -19,40 +288,113 @@ func Inspect(node ast.Node, fn func(node ast.Node) bool) { ast.Inspect(node, fn) } -func Match(pass *analysis.Pass, q pattern.Pattern, node ast.Node) (*pattern.Matcher, bool) { - // Note that we ignore q.Relevant – callers of Match usually use - // AST inspectors that already filter on nodes we're interested - // in. - m := &pattern.Matcher{TypesInfo: pass.TypesInfo} - ok := m.Match(q.Root, node) - return m, ok +func GroupSpecs(fset *token.FileSet, specs []ast.Spec) [][]ast.Spec { + if len(specs) == 0 { + return nil + } + groups := make([][]ast.Spec, 1) + groups[0] = append(groups[0], specs[0]) + + for _, spec := range specs[1:] { + g := groups[len(groups)-1] + if fset.PositionFor(spec.Pos(), false).Line-1 != + fset.PositionFor(g[len(g)-1].End(), false).Line { + + groups = append(groups, nil) + } + + groups[len(groups)-1] = append(groups[len(groups)-1], spec) + } + + return groups +} + +func IsObject(obj types.Object, name string) bool { + var path string + if pkg := obj.Pkg(); pkg != nil { + path = pkg.Path() + "." + } + return path+obj.Name() == name } -func MatchAndEdit(pass *analysis.Pass, before, after pattern.Pattern, node ast.Node) (*pattern.Matcher, []analysis.TextEdit, bool) { - m, ok := Match(pass, before, node) - if !ok { - return m, nil, false +type Field struct { + Var *types.Var + Tag string + Path []int +} + +// FlattenFields recursively flattens T and embedded structs, +// returning a list of fields. If multiple fields with the same name +// exist, all will be returned. +func FlattenFields(T *types.Struct) []Field { + return flattenFields(T, nil, nil) +} + +func flattenFields(T *types.Struct, path []int, seen map[types.Type]bool) []Field { + if seen == nil { + seen = map[types.Type]bool{} + } + if seen[T] { + return nil } - r := pattern.NodeToAST(after.Root, m.State) - buf := &bytes.Buffer{} - format.Node(buf, pass.Fset, r) - edit := []analysis.TextEdit{{ - Pos: node.Pos(), - End: node.End(), - NewText: buf.Bytes(), - }} - return m, edit, true + seen[T] = true + var out []Field + for i := 0; i < T.NumFields(); i++ { + field := T.Field(i) + tag := T.Tag(i) + np := append(path[:len(path):len(path)], i) + if field.Anonymous() { + if s, ok := Dereference(field.Type()).Underlying().(*types.Struct); ok { + out = append(out, flattenFields(s, np, seen)...) + } + } else { + out = append(out, Field{field, tag, np}) + } + } + return out +} + +func File(pass *analysis.Pass, node lint.Positioner) *ast.File { + pass.Fset.PositionFor(node.Pos(), true) + m := pass.ResultOf[facts.TokenFile].(map[*token.File]*ast.File) + return m[pass.Fset.File(node.Pos())] +} + +// IsGenerated reports whether pos is in a generated file, It ignores +// //line directives. +func IsGenerated(pass *analysis.Pass, pos token.Pos) bool { + _, ok := Generator(pass, pos) + return ok } -func Selector(x, sel string) *ast.SelectorExpr { - return &ast.SelectorExpr{ - X: &ast.Ident{Name: x}, - Sel: &ast.Ident{Name: sel}, +// Generator returns the generator that generated the file containing +// pos. It ignores //line directives. +func Generator(pass *analysis.Pass, pos token.Pos) (facts.Generator, bool) { + file := pass.Fset.PositionFor(pos, false).Filename + m := pass.ResultOf[facts.Generated].(map[string]facts.Generator) + g, ok := m[file] + return g, ok +} + +func ReportfFG(pass *analysis.Pass, pos token.Pos, f string, args ...interface{}) { + file := lint.DisplayPosition(pass.Fset, pos).Filename + m := pass.ResultOf[facts.Generated].(map[string]facts.Generator) + if _, ok := m[file]; ok { + return } + pass.Reportf(pos, f, args...) } -// ExhaustiveTypeSwitch panics when called. It can be used to ensure -// that type switches are exhaustive. -func ExhaustiveTypeSwitch(v interface{}) { - panic(fmt.Sprintf("internal error: unhandled case %T", v)) +func ReportNodef(pass *analysis.Pass, node ast.Node, format string, args ...interface{}) { + msg := fmt.Sprintf(format, args...) + pass.Report(analysis.Diagnostic{Pos: node.Pos(), End: node.End(), Message: msg}) +} + +func ReportNodefFG(pass *analysis.Pass, node ast.Node, format string, args ...interface{}) { + file := lint.DisplayPosition(pass.Fset, node.Pos()).Filename + m := pass.ResultOf[facts.Generated].(map[string]facts.Generator) + if _, ok := m[file]; ok { + return + } + ReportNodef(pass, node, format, args...) } diff --git a/vendor/honnef.co/go/tools/lint/lintutil/format/format.go b/vendor/honnef.co/go/tools/lint/lintutil/format/format.go index b28f8885b..9385431f8 100644 --- a/vendor/honnef.co/go/tools/lint/lintutil/format/format.go +++ b/vendor/honnef.co/go/tools/lint/lintutil/format/format.go @@ -39,7 +39,7 @@ func relativePositionString(pos token.Position) string { } type Statter interface { - Stats(total, errors, warnings, ignored int) + Stats(total, errors, warnings int) } type Formatter interface { @@ -51,10 +51,7 @@ type Text struct { } func (o Text) Format(p lint.Problem) { - fmt.Fprintf(o.W, "%s: %s\n", relativePositionString(p.Pos), p.String()) - for _, r := range p.Related { - fmt.Fprintf(o.W, "\t%s: %s\n", relativePositionString(r.Pos), r.Message) - } + fmt.Fprintf(o.W, "%v: %s\n", relativePositionString(p.Pos), p.String()) } type JSON struct { @@ -79,18 +76,12 @@ func (o JSON) Format(p lint.Problem) { Line int `json:"line"` Column int `json:"column"` } - type related struct { + jp := struct { + Code string `json:"code"` + Severity string `json:"severity,omitempty"` Location location `json:"location"` End location `json:"end"` Message string `json:"message"` - } - jp := struct { - Code string `json:"code"` - Severity string `json:"severity,omitempty"` - Location location `json:"location"` - End location `json:"end"` - Message string `json:"message"` - Related []related `json:"related,omitempty"` }{ Code: p.Check, Severity: severity(p.Severity), @@ -106,21 +97,6 @@ func (o JSON) Format(p lint.Problem) { }, Message: p.Message, } - for _, r := range p.Related { - jp.Related = append(jp.Related, related{ - Location: location{ - File: r.Pos.Filename, - Line: r.Pos.Line, - Column: r.Pos.Column, - }, - End: location{ - File: r.End.Filename, - Line: r.End.Line, - Column: r.End.Column, - }, - Message: r.Message, - }) - } _ = json.NewEncoder(o.W).Encode(jp) } @@ -147,16 +123,13 @@ func (o *Stylish) Format(p lint.Problem) { o.tw = tabwriter.NewWriter(o.W, 0, 4, 2, ' ', 0) } fmt.Fprintf(o.tw, " (%d, %d)\t%s\t%s\n", pos.Line, pos.Column, p.Check, p.Message) - for _, r := range p.Related { - fmt.Fprintf(o.tw, " (%d, %d)\t\t %s\n", r.Pos.Line, r.Pos.Column, r.Message) - } } -func (o *Stylish) Stats(total, errors, warnings, ignored int) { +func (o *Stylish) Stats(total, errors, warnings int) { if o.tw != nil { o.tw.Flush() fmt.Fprintln(o.W) } - fmt.Fprintf(o.W, " ✖ %d problems (%d errors, %d warnings, %d ignored)\n", - total, errors, warnings, ignored) + fmt.Fprintf(o.W, " ✖ %d problems (%d errors, %d warnings)\n", + total, errors, warnings) } diff --git a/vendor/honnef.co/go/tools/lint/lintutil/util.go b/vendor/honnef.co/go/tools/lint/lintutil/util.go index c7591d2de..fe0279f92 100644 --- a/vendor/honnef.co/go/tools/lint/lintutil/util.go +++ b/vendor/honnef.co/go/tools/lint/lintutil/util.go @@ -5,7 +5,7 @@ // https://developers.google.com/open-source/licenses/bsd. // Package lintutil provides helpers for writing linter command lines. -package lintutil +package lintutil // import "honnef.co/go/tools/lint/lintutil" import ( "crypto/sha256" @@ -23,9 +23,7 @@ import ( "runtime/pprof" "strconv" "strings" - "sync" "sync/atomic" - "time" "honnef.co/go/tools/config" "honnef.co/go/tools/internal/cache" @@ -116,8 +114,6 @@ func FlagSet(name string) *flag.FlagSet { flags.String("debug.memprofile", "", "Write memory profile to `file`") flags.Bool("debug.version", false, "Print detailed version information about this program") flags.Bool("debug.no-compile-errors", false, "Don't print compile errors") - flags.String("debug.measure-analyzers", "", "Write analysis measurements to `file`. `file` will be opened for appending if it already exists.") - flags.Uint("debug.repeat-analyzers", 0, "Run analyzers `num` times") checks := list{"inherit"} fail := list{"all"} @@ -157,24 +153,6 @@ func ProcessFlagSet(cs []*analysis.Analyzer, cums []lint.CumulativeChecker, fs * memProfile := fs.Lookup("debug.memprofile").Value.(flag.Getter).Get().(string) debugVersion := fs.Lookup("debug.version").Value.(flag.Getter).Get().(bool) debugNoCompile := fs.Lookup("debug.no-compile-errors").Value.(flag.Getter).Get().(bool) - debugRepeat := fs.Lookup("debug.repeat-analyzers").Value.(flag.Getter).Get().(uint) - - var measureAnalyzers func(analysis *analysis.Analyzer, pkg *lint.Package, d time.Duration) - if path := fs.Lookup("debug.measure-analyzers").Value.(flag.Getter).Get().(string); path != "" { - f, err := os.OpenFile(path, os.O_CREATE|os.O_APPEND|os.O_WRONLY, 0600) - if err != nil { - log.Fatal(err) - } - - mu := &sync.Mutex{} - measureAnalyzers = func(analysis *analysis.Analyzer, pkg *lint.Package, d time.Duration) { - mu.Lock() - defer mu.Unlock() - if _, err := fmt.Fprintf(f, "%s\t%s\t%d\n", analysis.Name, pkg.ID, d.Nanoseconds()); err != nil { - log.Println("error writing analysis measurements:", err) - } - } - } cfg := config.Config{} cfg.Checks = *fs.Lookup("checks").Value.(*list) @@ -240,12 +218,10 @@ func ProcessFlagSet(cs []*analysis.Analyzer, cums []lint.CumulativeChecker, fs * } ps, err := Lint(cs, cums, fs.Args(), &Options{ - Tags: tags, - LintTests: tests, - GoVersion: goVersion, - Config: cfg, - PrintAnalyzerMeasurement: measureAnalyzers, - RepeatAnalyzers: debugRepeat, + Tags: tags, + LintTests: tests, + GoVersion: goVersion, + Config: cfg, }) if err != nil { fmt.Fprintln(os.Stderr, err) @@ -269,7 +245,6 @@ func ProcessFlagSet(cs []*analysis.Analyzer, cums []lint.CumulativeChecker, fs * total int errors int warnings int - ignored int ) fail := *fs.Lookup("fail").Value.(*list) @@ -287,7 +262,6 @@ func ProcessFlagSet(cs []*analysis.Analyzer, cums []lint.CumulativeChecker, fs * continue } if p.Severity == lint.Ignored && !showIgnored { - ignored++ continue } if shouldExit[p.Check] { @@ -299,7 +273,7 @@ func ProcessFlagSet(cs []*analysis.Analyzer, cums []lint.CumulativeChecker, fs * f.Format(p) } if f, ok := f.(format.Statter); ok { - f.Stats(total, errors, warnings, ignored) + f.Stats(total, errors, warnings) } if errors > 0 { exit(1) @@ -310,11 +284,9 @@ func ProcessFlagSet(cs []*analysis.Analyzer, cums []lint.CumulativeChecker, fs * type Options struct { Config config.Config - Tags string - LintTests bool - GoVersion int - PrintAnalyzerMeasurement func(analysis *analysis.Analyzer, pkg *lint.Package, d time.Duration) - RepeatAnalyzers uint + Tags string + LintTests bool + GoVersion int } func computeSalt() ([]byte, error) { @@ -353,9 +325,7 @@ func Lint(cs []*analysis.Analyzer, cums []lint.CumulativeChecker, paths []string CumulativeCheckers: cums, GoVersion: opt.GoVersion, Config: opt.Config, - RepeatAnalyzers: opt.RepeatAnalyzers, } - l.Stats.PrintAnalyzerMeasurement = opt.PrintAnalyzerMeasurement cfg := &packages.Config{} if opt.LintTests { cfg.Tests = true @@ -398,8 +368,7 @@ func Lint(cs []*analysis.Analyzer, cums []lint.CumulativeChecker, paths []string }() } - ps, err := l.Lint(cfg, paths) - return ps, err + return l.Lint(cfg, paths) } var posRe = regexp.MustCompile(`^(.+?):(\d+)(?::(\d+)?)?$`) @@ -421,24 +390,3 @@ func parsePos(pos string) token.Position { Column: col, } } - -func InitializeAnalyzers(docs map[string]*lint.Documentation, analyzers map[string]*analysis.Analyzer) map[string]*analysis.Analyzer { - out := make(map[string]*analysis.Analyzer, len(analyzers)) - for k, v := range analyzers { - vc := *v - out[k] = &vc - - vc.Name = k - doc, ok := docs[k] - if !ok { - panic(fmt.Sprintf("missing documentation for check %s", k)) - } - vc.Doc = doc.String() - if vc.Flags.Usage == nil { - fs := flag.NewFlagSet("", flag.PanicOnError) - fs.Var(NewVersionFlag(), "go", "Target Go version") - vc.Flags = *fs - } - } - return out -} diff --git a/vendor/honnef.co/go/tools/lint/runner.go b/vendor/honnef.co/go/tools/lint/runner.go index 3235dce82..3b22a63fa 100644 --- a/vendor/honnef.co/go/tools/lint/runner.go +++ b/vendor/honnef.co/go/tools/lint/runner.go @@ -1,30 +1,6 @@ package lint /* -Package loading - -Conceptually, package loading in the runner can be imagined as a -graph-shaped work list. We iteratively pop off leaf nodes (packages -that have no unloaded dependencies) and load data from export data, -our cache, or source. - -Specifically, non-initial packages are loaded from export data and the -fact cache if possible, otherwise from source. Initial packages are -loaded from export data, the fact cache and the (problems, ignores, -config) cache if possible, otherwise from source. - -The appeal of this approach is that it is both simple to implement and -easily parallelizable. Each leaf node can be processed independently, -and new leaf nodes appear as their dependencies are being processed. - -The downside of this approach, however, is that we're doing more work -than necessary. Imagine an initial package A, which has the following -dependency chain: A->B->C->D – in the current implementation, we will -load all 4 packages. However, if package A can be loaded fully from -cached information, then none of its dependencies are necessary, and -we could avoid loading them. - - Parallelism Runner implements parallel processing of packages by spawning one @@ -43,34 +19,6 @@ all execute in parallel, while not wasting resources for long linear chains or trying to process more subgraphs in parallel than the system can handle. - -Caching - -We make use of several caches. These caches are Go's export data, our -facts cache, and our (problems, ignores, config) cache. - -Initial packages will either be loaded from a combination of all three -caches, or from source. Non-initial packages will either be loaded -from a combination of export data and facts cache, or from source. - -The facts cache is separate from the (problems, ignores, config) cache -because when we process non-initial packages, we generate facts, but -we discard problems and ignores. - -The facts cache is keyed by (package, analyzer), whereas the -(problems, ignores, config) cache is keyed by (package, list of -analyzes). The difference between the two exists because there are -only a handful of analyses that produce facts, but hundreds of -analyses that don't. Creating one cache entry per fact-generating -analysis is feasible, creating one cache entry per normal analysis has -significant performance and storage overheads. - -The downside of keying by the list of analyzes is, naturally, that a -change in list of analyzes changes the cache key. `staticcheck -checks -A` and `staticcheck -checks A,B` will therefore need their own cache -entries and not reuse each other's work. This problem does not affect -the facts cache. - */ import ( @@ -89,7 +37,6 @@ import ( "strings" "sync" "sync/atomic" - "time" "golang.org/x/tools/go/analysis" "golang.org/x/tools/go/packages" @@ -100,11 +47,6 @@ import ( "honnef.co/go/tools/loader" ) -func init() { - gob.Register(&FileIgnore{}) - gob.Register(&LineIgnore{}) -} - // If enabled, abuse of the go/analysis API will lead to panics const sanityCheck = true @@ -116,43 +58,21 @@ const sanityCheck = true // This may change unused's behavior, however, as it may observe fewer // interfaces from transitive dependencies. -// OPT(dh): every single package will have the same value for -// canClearTypes. We could move the Package.decUse method to runner to -// eliminate this field. This is probably not worth it, though. There -// are only thousands of packages, so the field only takes up -// kilobytes of memory. - -// OPT(dh): do we really need the Package.gen field? it's based -// trivially on pkg.results and merely caches the result of a type -// assertion. How often do we actually use the field? - type Package struct { - // dependents is initially set to 1 plus the number of packages - // that directly import this package. It is atomically decreased - // by 1 every time a dependent has been processed or when the - // package itself has been processed. Once the value reaches zero, - // the package is no longer needed. dependents uint64 *packages.Package - Imports []*Package - initial bool - // fromSource is set to true for packages that have been loaded - // from source. This is the case for initial packages, packages - // with missing export data, and packages with no cached facts. + Imports []*Package + initial bool fromSource bool - // hash stores the package hash, as computed by packageHash - hash string - actionID cache.ActionID - done chan struct{} + hash string + done chan struct{} resultsMu sync.Mutex - // results maps analyzer IDs to analyzer results. it is - // implemented as a deduplicating concurrent cache. + // results maps analyzer IDs to analyzer results results []*result - cfg *config.Config - // gen maps file names to the code generator that created them + cfg *config.Config gen map[string]facts.Generator problems []Problem ignores []Ignore @@ -162,22 +82,12 @@ type Package struct { facts []map[types.Object][]analysis.Fact pkgFacts [][]analysis.Fact - // canClearTypes is set to true if we can discard type - // information after the package and its dependents have been - // processed. This is the case when no cumulative checkers are - // being run. canClearTypes bool } -type cachedPackage struct { - Problems []Problem - Ignores []Ignore - Config *config.Config -} - func (pkg *Package) decUse() { - ret := atomic.AddUint64(&pkg.dependents, ^uint64(0)) - if ret == 0 { + atomic.AddUint64(&pkg.dependents, ^uint64(0)) + if atomic.LoadUint64(&pkg.dependents) == 0 { // nobody depends on this package anymore if pkg.canClearTypes { pkg.Types = nil @@ -198,16 +108,16 @@ type result struct { } type Runner struct { - cache *cache.Cache - goVersion int - stats *Stats - repeatAnalyzers uint + ld loader.Loader + cache *cache.Cache - analyzerIDs analyzerIDs - problemsCacheKey string + analyzerIDs analyzerIDs // limits parallelism of loading packages loadSem chan struct{} + + goVersion int + stats *Stats } type analyzerIDs struct { @@ -315,13 +225,6 @@ func (ac *analysisAction) report(pass *analysis.Pass, d analysis.Diagnostic) { Message: d.Message, Check: pass.Analyzer.Name, } - for _, r := range d.Related { - p.Related = append(p.Related, Related{ - Pos: DisplayPosition(pass.Fset, r.Pos), - End: DisplayPosition(pass.Fset, r.End), - Message: r.Message, - }) - } ac.problems = append(ac.problems, p) } @@ -375,21 +278,6 @@ func (r *Runner) runAnalysis(ac *analysisAction) (ret interface{}, err error) { } } -func (r *Runner) loadCachedPackage(pkg *Package, analyzers []*analysis.Analyzer) (cachedPackage, bool) { - // OPT(dh): we can cache this computation, it'll be the same for all packages - id := cache.Subkey(pkg.actionID, "data "+r.problemsCacheKey) - - b, _, err := r.cache.GetBytes(id) - if err != nil { - return cachedPackage{}, false - } - var cpkg cachedPackage - if err := gob.NewDecoder(bytes.NewReader(b)).Decode(&cpkg); err != nil { - return cachedPackage{}, false - } - return cpkg, true -} - func (r *Runner) loadCachedFacts(a *analysis.Analyzer, pkg *Package) ([]Fact, bool) { if len(a.FactTypes) == 0 { return nil, true @@ -397,7 +285,10 @@ func (r *Runner) loadCachedFacts(a *analysis.Analyzer, pkg *Package) ([]Fact, bo var facts []Fact // Look in the cache for facts - aID := passActionID(pkg, a) + aID, err := passActionID(pkg, a) + if err != nil { + return nil, false + } aID = cache.Subkey(aID, "facts") b, _, err := r.cache.GetBytes(aID) if err != nil { @@ -487,15 +378,9 @@ func (r *Runner) runAnalysisUser(pass *analysis.Pass, ac *analysisAction) (inter } // Then with this analyzer - var ret interface{} - for i := uint(0); i < r.repeatAnalyzers+1; i++ { - var err error - t := time.Now() - ret, err = ac.analyzer.Run(pass) - r.stats.MeasureAnalyzer(ac.analyzer, ac.pkg, time.Since(t)) - if err != nil { - return nil, err - } + ret, err := ac.analyzer.Run(pass) + if err != nil { + return nil, err } if len(ac.analyzer.FactTypes) > 0 { @@ -519,7 +404,16 @@ func (r *Runner) runAnalysisUser(pass *analysis.Pass, ac *analysisAction) (inter } } - if err := r.cacheData(facts, ac.pkg, ac.analyzer, "facts"); err != nil { + buf := &bytes.Buffer{} + if err := gob.NewEncoder(buf).Encode(facts); err != nil { + return nil, err + } + aID, err := passActionID(ac.pkg, ac.analyzer) + if err != nil { + return nil, err + } + aID = cache.Subkey(aID, "facts") + if err := r.cache.PutBytes(aID, buf.Bytes()); err != nil { return nil, err } } @@ -527,19 +421,6 @@ func (r *Runner) runAnalysisUser(pass *analysis.Pass, ac *analysisAction) (inter return ret, nil } -func (r *Runner) cacheData(v interface{}, pkg *Package, a *analysis.Analyzer, subkey string) error { - buf := &bytes.Buffer{} - if err := gob.NewEncoder(buf).Encode(v); err != nil { - return err - } - aID := passActionID(pkg, a) - aID = cache.Subkey(aID, subkey) - if err := r.cache.PutBytes(aID, buf.Bytes()); err != nil { - return err - } - return nil -} - func NewRunner(stats *Stats) (*Runner, error) { cache, err := cache.Default() if err != nil { @@ -557,17 +438,9 @@ func NewRunner(stats *Stats) (*Runner, error) { // diagnostics as well as extracted ignore directives. // // Note that diagnostics have not been filtered at this point yet, to -// accommodate cumulative analyzes that require additional steps to +// accomodate cumulative analyzes that require additional steps to // produce diagnostics. func (r *Runner) Run(cfg *packages.Config, patterns []string, analyzers []*analysis.Analyzer, hasCumulative bool) ([]*Package, error) { - checkerNames := make([]string, len(analyzers)) - for i, a := range analyzers { - checkerNames[i] = a.Name - } - sort.Strings(checkerNames) - r.problemsCacheKey = strings.Join(checkerNames, " ") - - var allAnalyzers []*analysis.Analyzer r.analyzerIDs = analyzerIDs{m: map[*analysis.Analyzer]int{}} id := 0 seen := map[*analysis.Analyzer]struct{}{} @@ -577,7 +450,6 @@ func (r *Runner) Run(cfg *packages.Config, patterns []string, analyzers []*analy return } seen[a] = struct{}{} - allAnalyzers = append(allAnalyzers, a) r.analyzerIDs.m[a] = id id++ for _, f := range a.FactTypes { @@ -596,11 +468,6 @@ func (r *Runner) Run(cfg *packages.Config, patterns []string, analyzers []*analy for _, a := range injectedAnalyses { dfs(a) } - // Run all analyzers on all packages (subject to further - // restrictions enforced later). This guarantees that if analyzer - // A1 depends on A2, and A2 has facts, that A2 will run on the - // dependencies of user-provided packages, even though A1 won't. - analyzers = allAnalyzers var dcfg packages.Config if cfg != nil { @@ -608,10 +475,11 @@ func (r *Runner) Run(cfg *packages.Config, patterns []string, analyzers []*analy } atomic.StoreUint32(&r.stats.State, StateGraph) - initialPkgs, err := loader.Graph(dcfg, patterns...) + initialPkgs, err := r.ld.Graph(dcfg, patterns...) if err != nil { return nil, err } + defer r.cache.Trim() var allPkgs []*Package @@ -639,8 +507,7 @@ func (r *Runner) Run(cfg *packages.Config, patterns []string, analyzers []*analy m[l].Imports = append(m[l].Imports, m[v]) } - m[l].hash, err = r.packageHash(m[l]) - m[l].actionID = packageActionID(m[l]) + m[l].hash, err = packageHash(m[l]) if err != nil { m[l].errs = append(m[l].errs, err) } @@ -697,36 +564,27 @@ func parsePos(pos string) (token.Position, int, error) { }, len(parts[0]), nil } -// loadPkg loads a Go package. It may be loaded from a combination of -// caches, or from source. +// loadPkg loads a Go package. If the package is in the set of initial +// packages, it will be loaded from source, otherwise it will be +// loaded from export data. In the case that the package was loaded +// from export data, cached facts will also be loaded. +// +// Currently, only cached facts for this package will be loaded, not +// for any of its dependencies. func (r *Runner) loadPkg(pkg *Package, analyzers []*analysis.Analyzer) error { if pkg.Types != nil { panic(fmt.Sprintf("internal error: %s has already been loaded", pkg.Package)) } + // Load type information if pkg.initial { - // Try to load cached package - cpkg, ok := r.loadCachedPackage(pkg, analyzers) - if ok { - pkg.problems = cpkg.Problems - pkg.ignores = cpkg.Ignores - pkg.cfg = cpkg.Config - } else { - pkg.fromSource = true - return loader.LoadFromSource(pkg.Package) - } + // Load package from source + pkg.fromSource = true + return r.ld.LoadFromSource(pkg.Package) } - // At this point we're either working with a non-initial package, - // or we managed to load cached problems for the package. We still - // need export data and facts. - - // OPT(dh): we don't need type information for this package if no - // other package depends on it. this may be the case for initial - // packages. - // Load package from export data - if err := loader.LoadFromExport(pkg.Package); err != nil { + if err := r.ld.LoadFromExport(pkg.Package); err != nil { // We asked Go to give us up to date export data, yet // we can't load it. There must be something wrong. // @@ -739,7 +597,7 @@ func (r *Runner) loadPkg(pkg *Package, analyzers []*analysis.Analyzer) error { // FIXME(dh): we no longer reload from export data, so // theoretically we should be able to continue pkg.fromSource = true - if err := loader.LoadFromSource(pkg.Package); err != nil { + if err := r.ld.LoadFromSource(pkg.Package); err != nil { return err } // Make sure this package can't be imported successfully @@ -800,14 +658,13 @@ func (r *Runner) loadPkg(pkg *Package, analyzers []*analysis.Analyzer) error { dfs(a) } - if !failed { - return nil + if failed { + pkg.fromSource = true + // XXX we added facts to the maps, we need to get rid of those + return r.ld.LoadFromSource(pkg.Package) } - // We failed to load some cached facts - pkg.fromSource = true - // XXX we added facts to the maps, we need to get rid of those - return loader.LoadFromSource(pkg.Package) + return nil } type analysisError struct { @@ -838,7 +695,7 @@ func (r *Runner) processPkg(pkg *Package, analyzers []*analysis.Analyzer) { }() // Ensure all packages have the generated map and config. This is - // required by internals of the runner. Analyses that themselves + // required by interna of the runner. Analyses that themselves // make use of either have an explicit dependency so that other // runners work correctly, too. analyzers = append(analyzers[0:len(analyzers):len(analyzers)], injectedAnalyses...) @@ -909,7 +766,7 @@ func (r *Runner) processPkg(pkg *Package, analyzers []*analysis.Analyzer) { defer wg.Done() // Only initial packages and packages with missing // facts will have been loaded from source. - if pkg.initial || len(a.FactTypes) > 0 { + if pkg.initial || r.hasFacts(a) { if _, err := r.runAnalysis(ac); err != nil { errs[i] = analysisError{a, pkg, err} return @@ -943,8 +800,6 @@ func (r *Runner) processPkg(pkg *Package, analyzers []*analysis.Analyzer) { // We can't process ignores at this point because `unused` needs // to see more than one package to make its decision. - // - // OPT(dh): can't we guard this block of code by pkg.initial? ignores, problems := parseDirectives(pkg.Package) pkg.ignores = append(pkg.ignores, ignores...) pkg.problems = append(pkg.problems, problems...) @@ -969,6 +824,32 @@ func (r *Runner) processPkg(pkg *Package, analyzers []*analysis.Analyzer) { // from processPkg. } +// hasFacts reports whether an analysis exports any facts. An analysis +// that has a transitive dependency that exports facts is considered +// to be exporting facts. +func (r *Runner) hasFacts(a *analysis.Analyzer) bool { + ret := false + seen := make([]bool, len(r.analyzerIDs.m)) + var dfs func(*analysis.Analyzer) + dfs = func(a *analysis.Analyzer) { + if seen[r.analyzerIDs.get(a)] { + return + } + seen[r.analyzerIDs.get(a)] = true + if len(a.FactTypes) > 0 { + ret = true + } + for _, req := range a.Requires { + if ret { + break + } + dfs(req) + } + } + dfs(a) + return ret +} + func parseDirective(s string) (cmd string, args []string) { if !strings.HasPrefix(s, "//lint:") { return "", nil @@ -1051,10 +932,9 @@ func parseDirectives(pkg *packages.Package) ([]Ignore, []Problem) { // packageHash computes a package's hash. The hash is based on all Go // files that make up the package, as well as the hashes of imported // packages. -func (r *Runner) packageHash(pkg *Package) (string, error) { +func packageHash(pkg *Package) (string, error) { key := cache.NewHash("package hash") fmt.Fprintf(key, "pkgpath %s\n", pkg.PkgPath) - fmt.Fprintf(key, "go %d\n", r.goVersion) for _, f := range pkg.CompiledGoFiles { h, err := cache.FileHash(f) if err != nil { @@ -1063,28 +943,6 @@ func (r *Runner) packageHash(pkg *Package) (string, error) { fmt.Fprintf(key, "file %s %x\n", f, h) } - // Actually load the configuration to calculate its hash. This - // will take into consideration inheritance of configuration - // files, as well as the default configuration. - // - // OPT(dh): doing this means we'll load the config twice: once for - // computing the hash, and once when analyzing the package from - // source. - cdir := config.Dir(pkg.GoFiles) - if cdir == "" { - fmt.Fprintf(key, "file %s %x\n", config.ConfigName, [cache.HashSize]byte{}) - } else { - cfg, err := config.Load(cdir) - if err != nil { - return "", err - } - h := cache.NewHash(config.ConfigName) - if _, err := h.Write([]byte(cfg.String())); err != nil { - return "", err - } - fmt.Fprintf(key, "file %s %x\n", config.ConfigName, h.Sum()) - } - imps := make([]*Package, len(pkg.Imports)) copy(imps, pkg.Imports) sort.Slice(imps, func(i, j int) bool { @@ -1101,14 +959,12 @@ func (r *Runner) packageHash(pkg *Package) (string, error) { return hex.EncodeToString(h[:]), nil } -func packageActionID(pkg *Package) cache.ActionID { - key := cache.NewHash("package ID") +// passActionID computes an ActionID for an analysis pass. +func passActionID(pkg *Package, analyzer *analysis.Analyzer) (cache.ActionID, error) { + key := cache.NewHash("action ID") fmt.Fprintf(key, "pkgpath %s\n", pkg.PkgPath) fmt.Fprintf(key, "pkghash %s\n", pkg.hash) - return key.Sum() -} + fmt.Fprintf(key, "analyzer %s\n", analyzer.Name) -// passActionID computes an ActionID for an analysis pass. -func passActionID(pkg *Package, analyzer *analysis.Analyzer) cache.ActionID { - return cache.Subkey(pkg.actionID, fmt.Sprintf("analyzer %s", analyzer.Name)) + return key.Sum(), nil } diff --git a/vendor/honnef.co/go/tools/lint/stats.go b/vendor/honnef.co/go/tools/lint/stats.go index 85eb97844..2f6508559 100644 --- a/vendor/honnef.co/go/tools/lint/stats.go +++ b/vendor/honnef.co/go/tools/lint/stats.go @@ -1,11 +1,5 @@ package lint -import ( - "time" - - "golang.org/x/tools/go/analysis" -) - const ( StateInitializing = 0 StateGraph = 1 @@ -23,16 +17,4 @@ type Stats struct { Problems uint32 ActiveWorkers uint32 TotalWorkers uint32 - PrintAnalyzerMeasurement func(*analysis.Analyzer, *Package, time.Duration) -} - -type AnalysisMeasurementKey struct { - Analysis string - Pkg string -} - -func (s *Stats) MeasureAnalyzer(analysis *analysis.Analyzer, pkg *Package, d time.Duration) { - if s.PrintAnalyzerMeasurement != nil { - s.PrintAnalyzerMeasurement(analysis, pkg, d) - } } diff --git a/vendor/honnef.co/go/tools/loader/loader.go b/vendor/honnef.co/go/tools/loader/loader.go index a14f274d2..9c6885d48 100644 --- a/vendor/honnef.co/go/tools/loader/loader.go +++ b/vendor/honnef.co/go/tools/loader/loader.go @@ -1,7 +1,6 @@ package loader import ( - "errors" "fmt" "go/ast" "go/parser" @@ -10,17 +9,22 @@ import ( "go/types" "log" "os" + "sync" "golang.org/x/tools/go/gcexportdata" "golang.org/x/tools/go/packages" ) +type Loader struct { + exportMu sync.RWMutex +} + // Graph resolves patterns and returns packages with all the // information required to later load type information, and optionally // syntax trees. // // The provided config can set any setting with the exception of Mode. -func Graph(cfg packages.Config, patterns ...string) ([]*packages.Package, error) { +func (ld *Loader) Graph(cfg packages.Config, patterns ...string) ([]*packages.Package, error) { cfg.Mode = packages.NeedName | packages.NeedImports | packages.NeedDeps | packages.NeedExportsFile | packages.NeedFiles | packages.NeedCompiledGoFiles | packages.NeedTypesSizes pkgs, err := packages.Load(&cfg, patterns...) if err != nil { @@ -30,29 +34,15 @@ func Graph(cfg packages.Config, patterns ...string) ([]*packages.Package, error) packages.Visit(pkgs, nil, func(pkg *packages.Package) { pkg.Fset = fset }) - - n := 0 - for _, pkg := range pkgs { - if len(pkg.CompiledGoFiles) == 0 && len(pkg.Errors) == 0 && pkg.PkgPath != "unsafe" { - // If a package consists only of test files, then - // go/packages incorrectly(?) returns an empty package for - // the non-test variant. Get rid of those packages. See - // #646. - // - // Do not, however, skip packages that have errors. Those, - // too, may have no files, but we want to print the - // errors. - continue - } - pkgs[n] = pkg - n++ - } - return pkgs[:n], nil + return pkgs, nil } // LoadFromExport loads a package from export data. All of its // dependencies must have been loaded already. -func LoadFromExport(pkg *packages.Package) error { +func (ld *Loader) LoadFromExport(pkg *packages.Package) error { + ld.exportMu.Lock() + defer ld.exportMu.Unlock() + pkg.IllTyped = true for path, pkg := range pkg.Imports { if pkg.Types == nil { @@ -97,7 +87,10 @@ func LoadFromExport(pkg *packages.Package) error { // LoadFromSource loads a package from source. All of its dependencies // must have been loaded already. -func LoadFromSource(pkg *packages.Package) error { +func (ld *Loader) LoadFromSource(pkg *packages.Package) error { + ld.exportMu.RLock() + defer ld.exportMu.RUnlock() + pkg.IllTyped = true pkg.Types = types.NewPackage(pkg.PkgPath, pkg.Name) @@ -128,12 +121,6 @@ func LoadFromSource(pkg *packages.Package) error { if path == "unsafe" { return types.Unsafe, nil } - if path == "C" { - // go/packages doesn't tell us that cgo preprocessing - // failed. When we subsequently try to parse the package, - // we'll encounter the raw C import. - return nil, errors.New("cgo preprocessing failed") - } imp := pkg.Imports[path] if imp == nil { return nil, nil diff --git a/vendor/honnef.co/go/tools/pattern/convert.go b/vendor/honnef.co/go/tools/pattern/convert.go deleted file mode 100644 index dfcd1560d..000000000 --- a/vendor/honnef.co/go/tools/pattern/convert.go +++ /dev/null @@ -1,242 +0,0 @@ -package pattern - -import ( - "fmt" - "go/ast" - "go/token" - "go/types" - "reflect" -) - -var astTypes = map[string]reflect.Type{ - "Ellipsis": reflect.TypeOf(ast.Ellipsis{}), - "RangeStmt": reflect.TypeOf(ast.RangeStmt{}), - "AssignStmt": reflect.TypeOf(ast.AssignStmt{}), - "IndexExpr": reflect.TypeOf(ast.IndexExpr{}), - "Ident": reflect.TypeOf(ast.Ident{}), - "ValueSpec": reflect.TypeOf(ast.ValueSpec{}), - "GenDecl": reflect.TypeOf(ast.GenDecl{}), - "BinaryExpr": reflect.TypeOf(ast.BinaryExpr{}), - "ForStmt": reflect.TypeOf(ast.ForStmt{}), - "ArrayType": reflect.TypeOf(ast.ArrayType{}), - "DeferStmt": reflect.TypeOf(ast.DeferStmt{}), - "MapType": reflect.TypeOf(ast.MapType{}), - "ReturnStmt": reflect.TypeOf(ast.ReturnStmt{}), - "SliceExpr": reflect.TypeOf(ast.SliceExpr{}), - "StarExpr": reflect.TypeOf(ast.StarExpr{}), - "UnaryExpr": reflect.TypeOf(ast.UnaryExpr{}), - "SendStmt": reflect.TypeOf(ast.SendStmt{}), - "SelectStmt": reflect.TypeOf(ast.SelectStmt{}), - "ImportSpec": reflect.TypeOf(ast.ImportSpec{}), - "IfStmt": reflect.TypeOf(ast.IfStmt{}), - "GoStmt": reflect.TypeOf(ast.GoStmt{}), - "Field": reflect.TypeOf(ast.Field{}), - "SelectorExpr": reflect.TypeOf(ast.SelectorExpr{}), - "StructType": reflect.TypeOf(ast.StructType{}), - "KeyValueExpr": reflect.TypeOf(ast.KeyValueExpr{}), - "FuncType": reflect.TypeOf(ast.FuncType{}), - "FuncLit": reflect.TypeOf(ast.FuncLit{}), - "FuncDecl": reflect.TypeOf(ast.FuncDecl{}), - "ChanType": reflect.TypeOf(ast.ChanType{}), - "CallExpr": reflect.TypeOf(ast.CallExpr{}), - "CaseClause": reflect.TypeOf(ast.CaseClause{}), - "CommClause": reflect.TypeOf(ast.CommClause{}), - "CompositeLit": reflect.TypeOf(ast.CompositeLit{}), - "EmptyStmt": reflect.TypeOf(ast.EmptyStmt{}), - "SwitchStmt": reflect.TypeOf(ast.SwitchStmt{}), - "TypeSwitchStmt": reflect.TypeOf(ast.TypeSwitchStmt{}), - "TypeAssertExpr": reflect.TypeOf(ast.TypeAssertExpr{}), - "TypeSpec": reflect.TypeOf(ast.TypeSpec{}), - "InterfaceType": reflect.TypeOf(ast.InterfaceType{}), - "BranchStmt": reflect.TypeOf(ast.BranchStmt{}), - "IncDecStmt": reflect.TypeOf(ast.IncDecStmt{}), - "BasicLit": reflect.TypeOf(ast.BasicLit{}), -} - -func ASTToNode(node interface{}) Node { - switch node := node.(type) { - case *ast.File: - panic("cannot convert *ast.File to Node") - case nil: - return Nil{} - case string: - return String(node) - case token.Token: - return Token(node) - case *ast.ExprStmt: - return ASTToNode(node.X) - case *ast.BlockStmt: - if node == nil { - return Nil{} - } - return ASTToNode(node.List) - case *ast.FieldList: - if node == nil { - return Nil{} - } - return ASTToNode(node.List) - case *ast.BasicLit: - if node == nil { - return Nil{} - } - case *ast.ParenExpr: - return ASTToNode(node.X) - } - - if node, ok := node.(ast.Node); ok { - name := reflect.TypeOf(node).Elem().Name() - T, ok := structNodes[name] - if !ok { - panic(fmt.Sprintf("internal error: unhandled type %T", node)) - } - - if reflect.ValueOf(node).IsNil() { - return Nil{} - } - v := reflect.ValueOf(node).Elem() - objs := make([]Node, T.NumField()) - for i := 0; i < T.NumField(); i++ { - f := v.FieldByName(T.Field(i).Name) - objs[i] = ASTToNode(f.Interface()) - } - - n, err := populateNode(name, objs, false) - if err != nil { - panic(fmt.Sprintf("internal error: %s", err)) - } - return n - } - - s := reflect.ValueOf(node) - if s.Kind() == reflect.Slice { - if s.Len() == 0 { - return List{} - } - if s.Len() == 1 { - return ASTToNode(s.Index(0).Interface()) - } - - tail := List{} - for i := s.Len() - 1; i >= 0; i-- { - head := ASTToNode(s.Index(i).Interface()) - l := List{ - Head: head, - Tail: tail, - } - tail = l - } - return tail - } - - panic(fmt.Sprintf("internal error: unhandled type %T", node)) -} - -func NodeToAST(node Node, state State) interface{} { - switch node := node.(type) { - case Binding: - v, ok := state[node.Name] - if !ok { - // really we want to return an error here - panic("XXX") - } - switch v := v.(type) { - case types.Object: - return &ast.Ident{Name: v.Name()} - default: - return v - } - case Builtin, Any, Object, Function, Not, Or: - panic("XXX") - case List: - if (node == List{}) { - return []ast.Node{} - } - x := []ast.Node{NodeToAST(node.Head, state).(ast.Node)} - x = append(x, NodeToAST(node.Tail, state).([]ast.Node)...) - return x - case Token: - return token.Token(node) - case String: - return string(node) - case Nil: - return nil - } - - name := reflect.TypeOf(node).Name() - T, ok := astTypes[name] - if !ok { - panic(fmt.Sprintf("internal error: unhandled type %T", node)) - } - v := reflect.ValueOf(node) - out := reflect.New(T) - for i := 0; i < T.NumField(); i++ { - fNode := v.FieldByName(T.Field(i).Name) - if (fNode == reflect.Value{}) { - continue - } - fAST := out.Elem().FieldByName(T.Field(i).Name) - switch fAST.Type().Kind() { - case reflect.Slice: - c := reflect.ValueOf(NodeToAST(fNode.Interface().(Node), state)) - if c.Kind() != reflect.Slice { - // it's a single node in the pattern, we have to wrap - // it in a slice - slice := reflect.MakeSlice(fAST.Type(), 1, 1) - slice.Index(0).Set(c) - c = slice - } - switch fAST.Interface().(type) { - case []ast.Node: - switch cc := c.Interface().(type) { - case []ast.Node: - fAST.Set(c) - case []ast.Expr: - var slice []ast.Node - for _, el := range cc { - slice = append(slice, el) - } - fAST.Set(reflect.ValueOf(slice)) - default: - panic("XXX") - } - case []ast.Expr: - switch cc := c.Interface().(type) { - case []ast.Node: - var slice []ast.Expr - for _, el := range cc { - slice = append(slice, el.(ast.Expr)) - } - fAST.Set(reflect.ValueOf(slice)) - case []ast.Expr: - fAST.Set(c) - default: - panic("XXX") - } - default: - panic("XXX") - } - case reflect.Int: - c := reflect.ValueOf(NodeToAST(fNode.Interface().(Node), state)) - switch c.Kind() { - case reflect.String: - tok, ok := tokensByString[c.Interface().(string)] - if !ok { - // really we want to return an error here - panic("XXX") - } - fAST.SetInt(int64(tok)) - case reflect.Int: - fAST.Set(c) - default: - panic(fmt.Sprintf("internal error: unexpected kind %s", c.Kind())) - } - default: - r := NodeToAST(fNode.Interface().(Node), state) - if r != nil { - fAST.Set(reflect.ValueOf(r)) - } - } - } - - return out.Interface().(ast.Node) -} diff --git a/vendor/honnef.co/go/tools/pattern/doc.go b/vendor/honnef.co/go/tools/pattern/doc.go deleted file mode 100644 index 05d86c251..000000000 --- a/vendor/honnef.co/go/tools/pattern/doc.go +++ /dev/null @@ -1,273 +0,0 @@ -/* -Package pattern implements a simple language for pattern matching Go ASTs. - -Design decisions and trade-offs - -The language is designed specifically for the task of filtering ASTs -to simplify the implementation of analyses in staticcheck. -It is also intended to be trivial to parse and execute. - -To that end, we make certain decisions that make the language more -suited to its task, while making certain queries infeasible. - -Furthermore, it is fully expected that the majority of analyses will still require ordinary Go code -to further process the filtered AST, to make use of type information and to enforce complex invariants. -It is not our goal to design a scripting language for writing entire checks in. - -The language - -At its core, patterns are a representation of Go ASTs, allowing for the use of placeholders to enable pattern matching. -Their syntax is inspired by LISP and Haskell, but unlike LISP, the core unit of patterns isn't the list, but the node. -There is a fixed set of nodes, identified by name, and with the exception of the Or node, all nodes have a fixed number of arguments. -In addition to nodes, there are atoms, which represent basic units such as strings or the nil value. - -Pattern matching is implemented via bindings, represented by the Binding node. -A Binding can match nodes and associate them with names, to later recall the nodes. -This allows for expressing "this node must be equal to that node" constraints. - -To simplify writing and reading patterns, a small amount of additional syntax exists on top of nodes and atoms. -This additional syntax doesn't add any new features of its own, it simply provides shortcuts to creating nodes and atoms. - -To show an example of a pattern, first consider this snippet of Go code: - - if x := fn(); x != nil { - for _, v := range x { - println(v, x) - } - } - -The corresponding AST expressed as an idiomatic pattern would look as follows: - - (IfStmt - (AssignStmt (Ident "x") ":=" (CallExpr (Ident "fn") [])) - (BinaryExpr (Ident "x") "!=" (Ident "nil")) - (RangeStmt - (Ident "_") (Ident "v") ":=" (Ident "x") - (CallExpr (Ident "println") [(Ident "v") (Ident "x")])) - nil) - -Two things are worth noting about this representation. -First, the [el1 el2 ...] syntax is a short-hand for creating lists. -It is a short-hand for el1:el2:[], which itself is a short-hand for (List el1 (List el2 (List nil nil)). -Second, note the absence of a lot of lists in places that normally accept lists. -For example, assignment assigns a number of right-hands to a number of left-hands, yet our AssignStmt is lacking any form of list. -This is due to the fact that a single node can match a list of exactly one element. -Thus, the two following forms have identical matching behavior: - - (AssignStmt (Ident "x") ":=" (CallExpr (Ident "fn") [])) - (AssignStmt [(Ident "x")] ":=" [(CallExpr (Ident "fn") [])]) - -This section serves as an overview of the language's syntax. -More in-depth explanations of the matching behavior as well as an exhaustive list of node types follows in the coming sections. - -Pattern matching - -TODO write about pattern matching - -- inspired by haskell syntax, but much, much simpler and naive - -Node types - -The language contains two kinds of nodes: those that map to nodes in the AST, and those that implement additional logic. - -Nodes that map directly to AST nodes are named identically to the types in the go/ast package. -What follows is an exhaustive list of these nodes: - - (ArrayType len elt) - (AssignStmt lhs tok rhs) - (BasicLit kind value) - (BinaryExpr x op y) - (BranchStmt tok label) - (CallExpr fun args) - (CaseClause list body) - (ChanType dir value) - (CommClause comm body) - (CompositeLit type elts) - (DeferStmt call) - (Ellipsis elt) - (EmptyStmt) - (Field names type tag) - (ForStmt init cond post body) - (FuncDecl recv name type body) - (FuncLit type body) - (FuncType params results) - (GenDecl specs) - (GoStmt call) - (Ident name) - (IfStmt init cond body else) - (ImportSpec name path) - (IncDecStmt x tok) - (IndexExpr x index) - (InterfaceType methods) - (KeyValueExpr key value) - (MapType key value) - (RangeStmt key value tok x body) - (ReturnStmt results) - (SelectStmt body) - (SelectorExpr x sel) - (SendStmt chan value) - (SliceExpr x low high max) - (StarExpr x) - (StructType fields) - (SwitchStmt init tag body) - (TypeAssertExpr) - (TypeSpec name type) - (TypeSwitchStmt init assign body) - (UnaryExpr op x) - (ValueSpec names type values) - -Additionally, there are the String, Token and nil atoms. -Strings are double-quoted string literals, as in (Ident "someName"). -Tokens are also represented as double-quoted string literals, but are converted to token.Token values in contexts that require tokens, -such as in (BinaryExpr x "<" y), where "<" is transparently converted to token.LSS during matching. -The keyword 'nil' denotes the nil value, which represents the absence of any value. - -We also defines the (List head tail) node, which is used to represent sequences of elements as a singly linked list. -The head is a single element, and the tail is the remainder of the list. -For example, - - (List "foo" (List "bar" (List "baz" (List nil nil)))) - -represents a list of three elements, "foo", "bar" and "baz". There is dedicated syntax for writing lists, which looks as follows: - - ["foo" "bar" "baz"] - -This syntax is itself syntactic sugar for the following form: - - "foo":"bar":"baz":[] - -This form is of particular interest for pattern matching, as it allows matching on the head and tail. For example, - - "foo":"bar":_ - -would match any list with at least two elements, where the first two elements are "foo" and "bar". This is equivalent to writing - - (List "foo" (List "bar" _)) - -Note that it is not possible to match from the end of the list. -That is, there is no way to express a query such as "a list of any length where the last element is foo". - -Note that unlike in LISP, nil and empty lists are distinct from one another. -In patterns, with respect to lists, nil is akin to Go's untyped nil. -It will match a nil ast.Node, but it will not match a nil []ast.Expr. Nil will, however, match pointers to named types such as *ast.Ident. -Similarly, lists are akin to Go's -slices. An empty list will match both a nil and an empty []ast.Expr, but it will not match a nil ast.Node. - -Due to the difference between nil and empty lists, an empty list is represented as (List nil nil), i.e. a list with no head or tail. -Similarly, a list of one element is represented as (List el (List nil nil)). Unlike in LISP, it cannot be represented by (List el nil). - -Finally, there are nodes that implement special logic or matching behavior. - -(Any) matches any value. The underscore (_) maps to this node, making the following two forms equivalent: - - (Ident _) - (Ident (Any)) - -(Builtin name) matches a built-in identifier or function by name. -This is a type-aware variant of (Ident name). -Instead of only comparing the name, it resolves the object behind the name and makes sure it's a pre-declared identifier. - -For example, in the following piece of code - - func fn() { - println(true) - true := false - println(true) - } - -the pattern - - (Builtin "true") - -will match exactly once, on the first use of 'true' in the function. -Subsequent occurrences of 'true' no longer refer to the pre-declared identifier. - -(Object name) matches an identifier by name, but yields the -types.Object it refers to. - -(Function name) matches ast.Idents and ast.SelectorExprs that refer to a function with a given fully qualified name. -For example, "net/url.PathEscape" matches the PathEscape function in the net/url package, -and "(net/url.EscapeError).Error" refers to the Error method on the net/url.EscapeError type, -either on an instance of the type, or on the type itself. - -For example, the following patterns match the following lines of code: - - (CallExpr (Function "fmt.Println") _) // pattern 1 - (CallExpr (Function "(net/url.EscapeError).Error") _) // pattern 2 - - fmt.Println("hello, world") // matches pattern 1 - var x url.EscapeError - x.Error() // matches pattern 2 - (url.EscapeError).Error(x) // also matches pattern 2 - -(Binding name node) creates or uses a binding. -Bindings work like variable assignments, allowing referring to already matched nodes. -As an example, bindings are necessary to match self-assignment of the form "x = x", -since we need to express that the right-hand side is identical to the left-hand side. - -If a binding's node is not nil, the matcher will attempt to match a node according to the pattern. -If a binding's node is nil, the binding will either recall an existing value, or match the Any node. -It is an error to provide a non-nil node to a binding that has already been bound. - -Referring back to the earlier example, the following pattern will match self-assignment of idents: - - (AssignStmt (Binding "lhs" (Ident _)) "=" (Binding "lhs" nil)) - -Because bindings are a crucial component of pattern matching, there is special syntax for creating and recalling bindings. -Lower-case names refer to bindings. If standing on its own, the name "foo" will be equivalent to (Binding "foo" nil). -If a name is followed by an at-sign (@) then it will create a binding for the node that follows. -Together, this allows us to rewrite the earlier example as follows: - - (AssignStmt lhs@(Ident _) "=" lhs) - -(Or nodes...) is a variadic node that tries matching each node until one succeeds. For example, the following pattern matches all idents of name "foo" or "bar": - - (Ident (Or "foo" "bar")) - -We could also have written - - (Or (Ident "foo") (Ident "bar")) - -and achieved the same result. We can also mix different kinds of nodes: - - (Or (Ident "foo") (CallExpr (Ident "bar") _)) - -When using bindings inside of nodes used inside Or, all or none of the bindings will be bound. -That is, partially matched nodes that ultimately failed to match will not produce any bindings observable outside of the matching attempt. -We can thus write - - (Or (Ident name) (CallExpr name)) - -and 'name' will either be a String if the first option matched, or an Ident or SelectorExpr if the second option matched. - -(Not node) - -The Not node negates a match. For example, (Not (Ident _)) will match all nodes that aren't identifiers. - -ChanDir(0) - -Automatic unnesting of AST nodes - -The Go AST has several types of nodes that wrap other nodes. -To simplify matching, we automatically unwrap some of these nodes. - -These nodes are ExprStmt (for using expressions in a statement context), -ParenExpr (for parenthesized expressions), -DeclStmt (for declarations in a statement context), -and LabeledStmt (for labeled statements). - -Thus, the query - - (FuncLit _ [(CallExpr _ _)] - -will match a function literal containing a single function call, -even though in the actual Go AST, the CallExpr is nested inside an ExprStmt, -as function bodies are made up of sequences of statements. - -On the flip-side, there is no way to specifically match these wrapper nodes. -For example, there is no way of searching for unnecessary parentheses, like in the following piece of Go code: - - ((x)) += 2 - -*/ -package pattern diff --git a/vendor/honnef.co/go/tools/pattern/fuzz.go b/vendor/honnef.co/go/tools/pattern/fuzz.go deleted file mode 100644 index 52e7df974..000000000 --- a/vendor/honnef.co/go/tools/pattern/fuzz.go +++ /dev/null @@ -1,50 +0,0 @@ -// +build gofuzz - -package pattern - -import ( - "go/ast" - goparser "go/parser" - "go/token" - "os" - "path/filepath" - "strings" -) - -var files []*ast.File - -func init() { - fset := token.NewFileSet() - filepath.Walk("/usr/lib/go/src", func(path string, info os.FileInfo, err error) error { - if err != nil { - // XXX error handling - panic(err) - } - if !strings.HasSuffix(path, ".go") { - return nil - } - f, err := goparser.ParseFile(fset, path, nil, 0) - if err != nil { - return nil - } - files = append(files, f) - return nil - }) -} - -func Fuzz(data []byte) int { - p := &Parser{} - pat, err := p.Parse(string(data)) - if err != nil { - if strings.Contains(err.Error(), "internal error") { - panic(err) - } - return 0 - } - _ = pat.Root.String() - - for _, f := range files { - Match(pat.Root, f) - } - return 1 -} diff --git a/vendor/honnef.co/go/tools/pattern/lexer.go b/vendor/honnef.co/go/tools/pattern/lexer.go deleted file mode 100644 index fb72e392b..000000000 --- a/vendor/honnef.co/go/tools/pattern/lexer.go +++ /dev/null @@ -1,221 +0,0 @@ -package pattern - -import ( - "fmt" - "go/token" - "unicode" - "unicode/utf8" -) - -type lexer struct { - f *token.File - - input string - start int - pos int - width int - items chan item -} - -type itemType int - -const eof = -1 - -const ( - itemError itemType = iota - itemLeftParen - itemRightParen - itemLeftBracket - itemRightBracket - itemTypeName - itemVariable - itemAt - itemColon - itemBlank - itemString - itemEOF -) - -func (typ itemType) String() string { - switch typ { - case itemError: - return "ERROR" - case itemLeftParen: - return "(" - case itemRightParen: - return ")" - case itemLeftBracket: - return "[" - case itemRightBracket: - return "]" - case itemTypeName: - return "TYPE" - case itemVariable: - return "VAR" - case itemAt: - return "@" - case itemColon: - return ":" - case itemBlank: - return "_" - case itemString: - return "STRING" - case itemEOF: - return "EOF" - default: - return fmt.Sprintf("itemType(%d)", typ) - } -} - -type item struct { - typ itemType - val string - pos int -} - -type stateFn func(*lexer) stateFn - -func (l *lexer) run() { - for state := lexStart; state != nil; { - state = state(l) - } - close(l.items) -} - -func (l *lexer) emitValue(t itemType, value string) { - l.items <- item{t, value, l.start} - l.start = l.pos -} - -func (l *lexer) emit(t itemType) { - l.items <- item{t, l.input[l.start:l.pos], l.start} - l.start = l.pos -} - -func lexStart(l *lexer) stateFn { - switch r := l.next(); { - case r == eof: - l.emit(itemEOF) - return nil - case unicode.IsSpace(r): - l.ignore() - case r == '(': - l.emit(itemLeftParen) - case r == ')': - l.emit(itemRightParen) - case r == '[': - l.emit(itemLeftBracket) - case r == ']': - l.emit(itemRightBracket) - case r == '@': - l.emit(itemAt) - case r == ':': - l.emit(itemColon) - case r == '_': - l.emit(itemBlank) - case r == '"': - l.backup() - return lexString - case unicode.IsUpper(r): - l.backup() - return lexType - case unicode.IsLower(r): - l.backup() - return lexVariable - default: - return l.errorf("unexpected character %c", r) - } - return lexStart -} - -func (l *lexer) next() (r rune) { - if l.pos >= len(l.input) { - l.width = 0 - return eof - } - r, l.width = utf8.DecodeRuneInString(l.input[l.pos:]) - - if r == '\n' { - l.f.AddLine(l.pos) - } - - l.pos += l.width - - return r -} - -func (l *lexer) ignore() { - l.start = l.pos -} - -func (l *lexer) backup() { - l.pos -= l.width -} - -func (l *lexer) errorf(format string, args ...interface{}) stateFn { - // TODO(dh): emit position information in errors - l.items <- item{ - itemError, - fmt.Sprintf(format, args...), - l.start, - } - return nil -} - -func isAlphaNumeric(r rune) bool { - return r >= '0' && r <= '9' || - r >= 'a' && r <= 'z' || - r >= 'A' && r <= 'Z' -} - -func lexString(l *lexer) stateFn { - l.next() // skip quote - escape := false - - var runes []rune - for { - switch r := l.next(); r { - case eof: - return l.errorf("unterminated string") - case '"': - if !escape { - l.emitValue(itemString, string(runes)) - return lexStart - } else { - runes = append(runes, '"') - escape = false - } - case '\\': - if escape { - runes = append(runes, '\\') - escape = false - } else { - escape = true - } - default: - runes = append(runes, r) - } - } -} - -func lexType(l *lexer) stateFn { - l.next() - for { - if !isAlphaNumeric(l.next()) { - l.backup() - l.emit(itemTypeName) - return lexStart - } - } -} - -func lexVariable(l *lexer) stateFn { - l.next() - for { - if !isAlphaNumeric(l.next()) { - l.backup() - l.emit(itemVariable) - return lexStart - } - } -} diff --git a/vendor/honnef.co/go/tools/pattern/match.go b/vendor/honnef.co/go/tools/pattern/match.go deleted file mode 100644 index ff039baa7..000000000 --- a/vendor/honnef.co/go/tools/pattern/match.go +++ /dev/null @@ -1,513 +0,0 @@ -package pattern - -import ( - "fmt" - "go/ast" - "go/token" - "go/types" - "reflect" - - "honnef.co/go/tools/lint" -) - -var tokensByString = map[string]Token{ - "INT": Token(token.INT), - "FLOAT": Token(token.FLOAT), - "IMAG": Token(token.IMAG), - "CHAR": Token(token.CHAR), - "STRING": Token(token.STRING), - "+": Token(token.ADD), - "-": Token(token.SUB), - "*": Token(token.MUL), - "/": Token(token.QUO), - "%": Token(token.REM), - "&": Token(token.AND), - "|": Token(token.OR), - "^": Token(token.XOR), - "<<": Token(token.SHL), - ">>": Token(token.SHR), - "&^": Token(token.AND_NOT), - "+=": Token(token.ADD_ASSIGN), - "-=": Token(token.SUB_ASSIGN), - "*=": Token(token.MUL_ASSIGN), - "/=": Token(token.QUO_ASSIGN), - "%=": Token(token.REM_ASSIGN), - "&=": Token(token.AND_ASSIGN), - "|=": Token(token.OR_ASSIGN), - "^=": Token(token.XOR_ASSIGN), - "<<=": Token(token.SHL_ASSIGN), - ">>=": Token(token.SHR_ASSIGN), - "&^=": Token(token.AND_NOT_ASSIGN), - "&&": Token(token.LAND), - "||": Token(token.LOR), - "<-": Token(token.ARROW), - "++": Token(token.INC), - "--": Token(token.DEC), - "==": Token(token.EQL), - "<": Token(token.LSS), - ">": Token(token.GTR), - "=": Token(token.ASSIGN), - "!": Token(token.NOT), - "!=": Token(token.NEQ), - "<=": Token(token.LEQ), - ">=": Token(token.GEQ), - ":=": Token(token.DEFINE), - "...": Token(token.ELLIPSIS), - "IMPORT": Token(token.IMPORT), - "VAR": Token(token.VAR), - "TYPE": Token(token.TYPE), - "CONST": Token(token.CONST), -} - -func maybeToken(node Node) (Node, bool) { - if node, ok := node.(String); ok { - if tok, ok := tokensByString[string(node)]; ok { - return tok, true - } - return node, false - } - return node, false -} - -func isNil(v interface{}) bool { - if v == nil { - return true - } - if _, ok := v.(Nil); ok { - return true - } - return false -} - -type matcher interface { - Match(*Matcher, interface{}) (interface{}, bool) -} - -type State = map[string]interface{} - -type Matcher struct { - TypesInfo *types.Info - State State -} - -func (m *Matcher) fork() *Matcher { - state := make(State, len(m.State)) - for k, v := range m.State { - state[k] = v - } - return &Matcher{ - TypesInfo: m.TypesInfo, - State: state, - } -} - -func (m *Matcher) merge(mc *Matcher) { - m.State = mc.State -} - -func (m *Matcher) Match(a Node, b ast.Node) bool { - m.State = State{} - _, ok := match(m, a, b) - return ok -} - -func Match(a Node, b ast.Node) (*Matcher, bool) { - m := &Matcher{} - ret := m.Match(a, b) - return m, ret -} - -// Match two items, which may be (Node, AST) or (AST, AST) -func match(m *Matcher, l, r interface{}) (interface{}, bool) { - if _, ok := r.(Node); ok { - panic("Node mustn't be on right side of match") - } - - switch l := l.(type) { - case *ast.ParenExpr: - return match(m, l.X, r) - case *ast.ExprStmt: - return match(m, l.X, r) - case *ast.DeclStmt: - return match(m, l.Decl, r) - case *ast.LabeledStmt: - return match(m, l.Stmt, r) - case *ast.BlockStmt: - return match(m, l.List, r) - case *ast.FieldList: - return match(m, l.List, r) - } - - switch r := r.(type) { - case *ast.ParenExpr: - return match(m, l, r.X) - case *ast.ExprStmt: - return match(m, l, r.X) - case *ast.DeclStmt: - return match(m, l, r.Decl) - case *ast.LabeledStmt: - return match(m, l, r.Stmt) - case *ast.BlockStmt: - if r == nil { - return match(m, l, nil) - } - return match(m, l, r.List) - case *ast.FieldList: - if r == nil { - return match(m, l, nil) - } - return match(m, l, r.List) - case *ast.BasicLit: - if r == nil { - return match(m, l, nil) - } - } - - if l, ok := l.(matcher); ok { - return l.Match(m, r) - } - - if l, ok := l.(Node); ok { - // Matching of pattern with concrete value - return matchNodeAST(m, l, r) - } - - if l == nil || r == nil { - return nil, l == r - } - - { - ln, ok1 := l.(ast.Node) - rn, ok2 := r.(ast.Node) - if ok1 && ok2 { - return matchAST(m, ln, rn) - } - } - - { - obj, ok := l.(types.Object) - if ok { - switch r := r.(type) { - case *ast.Ident: - return obj, obj == m.TypesInfo.ObjectOf(r) - case *ast.SelectorExpr: - return obj, obj == m.TypesInfo.ObjectOf(r.Sel) - default: - return obj, false - } - } - } - - { - ln, ok1 := l.([]ast.Expr) - rn, ok2 := r.([]ast.Expr) - if ok1 || ok2 { - if ok1 && !ok2 { - rn = []ast.Expr{r.(ast.Expr)} - } else if !ok1 && ok2 { - ln = []ast.Expr{l.(ast.Expr)} - } - - if len(ln) != len(rn) { - return nil, false - } - for i, ll := range ln { - if _, ok := match(m, ll, rn[i]); !ok { - return nil, false - } - } - return r, true - } - } - - { - ln, ok1 := l.([]ast.Stmt) - rn, ok2 := r.([]ast.Stmt) - if ok1 || ok2 { - if ok1 && !ok2 { - rn = []ast.Stmt{r.(ast.Stmt)} - } else if !ok1 && ok2 { - ln = []ast.Stmt{l.(ast.Stmt)} - } - - if len(ln) != len(rn) { - return nil, false - } - for i, ll := range ln { - if _, ok := match(m, ll, rn[i]); !ok { - return nil, false - } - } - return r, true - } - } - - panic(fmt.Sprintf("unsupported comparison: %T and %T", l, r)) -} - -// Match a Node with an AST node -func matchNodeAST(m *Matcher, a Node, b interface{}) (interface{}, bool) { - switch b := b.(type) { - case []ast.Stmt: - // 'a' is not a List or we'd be using its Match - // implementation. - - if len(b) != 1 { - return nil, false - } - return match(m, a, b[0]) - case []ast.Expr: - // 'a' is not a List or we'd be using its Match - // implementation. - - if len(b) != 1 { - return nil, false - } - return match(m, a, b[0]) - case ast.Node: - ra := reflect.ValueOf(a) - rb := reflect.ValueOf(b).Elem() - - if ra.Type().Name() != rb.Type().Name() { - return nil, false - } - - for i := 0; i < ra.NumField(); i++ { - af := ra.Field(i) - fieldName := ra.Type().Field(i).Name - bf := rb.FieldByName(fieldName) - if (bf == reflect.Value{}) { - panic(fmt.Sprintf("internal error: could not find field %s in type %t when comparing with %T", fieldName, b, a)) - } - ai := af.Interface() - bi := bf.Interface() - if ai == nil { - return b, bi == nil - } - if _, ok := match(m, ai.(Node), bi); !ok { - return b, false - } - } - return b, true - case nil: - return nil, a == Nil{} - default: - panic(fmt.Sprintf("unhandled type %T", b)) - } -} - -// Match two AST nodes -func matchAST(m *Matcher, a, b ast.Node) (interface{}, bool) { - ra := reflect.ValueOf(a) - rb := reflect.ValueOf(b) - - if ra.Type() != rb.Type() { - return nil, false - } - if ra.IsNil() || rb.IsNil() { - return rb, ra.IsNil() == rb.IsNil() - } - - ra = ra.Elem() - rb = rb.Elem() - for i := 0; i < ra.NumField(); i++ { - af := ra.Field(i) - bf := rb.Field(i) - if af.Type() == rtTokPos || af.Type() == rtObject || af.Type() == rtCommentGroup { - continue - } - - switch af.Kind() { - case reflect.Slice: - if af.Len() != bf.Len() { - return nil, false - } - for j := 0; j < af.Len(); j++ { - if _, ok := match(m, af.Index(j).Interface().(ast.Node), bf.Index(j).Interface().(ast.Node)); !ok { - return nil, false - } - } - case reflect.String: - if af.String() != bf.String() { - return nil, false - } - case reflect.Int: - if af.Int() != bf.Int() { - return nil, false - } - case reflect.Bool: - if af.Bool() != bf.Bool() { - return nil, false - } - case reflect.Ptr, reflect.Interface: - if _, ok := match(m, af.Interface(), bf.Interface()); !ok { - return nil, false - } - default: - panic(fmt.Sprintf("internal error: unhandled kind %s (%T)", af.Kind(), af.Interface())) - } - } - return b, true -} - -func (b Binding) Match(m *Matcher, node interface{}) (interface{}, bool) { - if isNil(b.Node) { - v, ok := m.State[b.Name] - if ok { - // Recall value - return match(m, v, node) - } - // Matching anything - b.Node = Any{} - } - - // Store value - if _, ok := m.State[b.Name]; ok { - panic(fmt.Sprintf("binding already created: %s", b.Name)) - } - new, ret := match(m, b.Node, node) - if ret { - m.State[b.Name] = new - } - return new, ret -} - -func (Any) Match(m *Matcher, node interface{}) (interface{}, bool) { - return node, true -} - -func (l List) Match(m *Matcher, node interface{}) (interface{}, bool) { - v := reflect.ValueOf(node) - if v.Kind() == reflect.Slice { - if isNil(l.Head) { - return node, v.Len() == 0 - } - if v.Len() == 0 { - return nil, false - } - // OPT(dh): don't check the entire tail if head didn't match - _, ok1 := match(m, l.Head, v.Index(0).Interface()) - _, ok2 := match(m, l.Tail, v.Slice(1, v.Len()).Interface()) - return node, ok1 && ok2 - } - // Our empty list does not equal an untyped Go nil. This way, we can - // tell apart an if with no else and an if with an empty else. - return nil, false -} - -func (s String) Match(m *Matcher, node interface{}) (interface{}, bool) { - switch o := node.(type) { - case token.Token: - if tok, ok := maybeToken(s); ok { - return match(m, tok, node) - } - return nil, false - case string: - return o, string(s) == o - default: - return nil, false - } -} - -func (tok Token) Match(m *Matcher, node interface{}) (interface{}, bool) { - o, ok := node.(token.Token) - if !ok { - return nil, false - } - return o, token.Token(tok) == o -} - -func (Nil) Match(m *Matcher, node interface{}) (interface{}, bool) { - return nil, isNil(node) -} - -func (builtin Builtin) Match(m *Matcher, node interface{}) (interface{}, bool) { - ident, ok := node.(*ast.Ident) - if !ok { - return nil, false - } - obj := m.TypesInfo.ObjectOf(ident) - if obj != types.Universe.Lookup(ident.Name) { - return nil, false - } - return match(m, builtin.Name, ident.Name) -} - -func (obj Object) Match(m *Matcher, node interface{}) (interface{}, bool) { - ident, ok := node.(*ast.Ident) - if !ok { - return nil, false - } - - id := m.TypesInfo.ObjectOf(ident) - _, ok = match(m, obj.Name, ident.Name) - return id, ok -} - -func (fn Function) Match(m *Matcher, node interface{}) (interface{}, bool) { - var name string - var obj types.Object - switch node := node.(type) { - case *ast.Ident: - obj = m.TypesInfo.ObjectOf(node) - switch obj := obj.(type) { - case *types.Func: - name = lint.FuncName(obj) - case *types.Builtin: - name = obj.Name() - default: - return nil, false - } - case *ast.SelectorExpr: - var ok bool - obj, ok = m.TypesInfo.ObjectOf(node.Sel).(*types.Func) - if !ok { - return nil, false - } - name = lint.FuncName(obj.(*types.Func)) - default: - return nil, false - } - _, ok := match(m, fn.Name, name) - return obj, ok -} - -func (or Or) Match(m *Matcher, node interface{}) (interface{}, bool) { - for _, opt := range or.Nodes { - mc := m.fork() - if ret, ok := match(mc, opt, node); ok { - m.merge(mc) - return ret, true - } - } - return nil, false -} - -func (not Not) Match(m *Matcher, node interface{}) (interface{}, bool) { - _, ok := match(m, not.Node, node) - if ok { - return nil, false - } - return node, true -} - -var ( - // Types of fields in go/ast structs that we want to skip - rtTokPos = reflect.TypeOf(token.Pos(0)) - rtObject = reflect.TypeOf((*ast.Object)(nil)) - rtCommentGroup = reflect.TypeOf((*ast.CommentGroup)(nil)) -) - -var ( - _ matcher = Binding{} - _ matcher = Any{} - _ matcher = List{} - _ matcher = String("") - _ matcher = Token(0) - _ matcher = Nil{} - _ matcher = Builtin{} - _ matcher = Object{} - _ matcher = Function{} - _ matcher = Or{} - _ matcher = Not{} -) diff --git a/vendor/honnef.co/go/tools/pattern/parser.go b/vendor/honnef.co/go/tools/pattern/parser.go deleted file mode 100644 index 009238b86..000000000 --- a/vendor/honnef.co/go/tools/pattern/parser.go +++ /dev/null @@ -1,455 +0,0 @@ -package pattern - -import ( - "fmt" - "go/ast" - "go/token" - "reflect" -) - -type Pattern struct { - Root Node - // Relevant contains instances of ast.Node that could potentially - // initiate a successful match of the pattern. - Relevant []reflect.Type -} - -func MustParse(s string) Pattern { - p := &Parser{AllowTypeInfo: true} - pat, err := p.Parse(s) - if err != nil { - panic(err) - } - return pat -} - -func roots(node Node) []reflect.Type { - switch node := node.(type) { - case Or: - var out []reflect.Type - for _, el := range node.Nodes { - out = append(out, roots(el)...) - } - return out - case Not: - return roots(node.Node) - case Binding: - return roots(node.Node) - case Nil, nil: - // this branch is reached via bindings - return allTypes - default: - Ts, ok := nodeToASTTypes[reflect.TypeOf(node)] - if !ok { - panic(fmt.Sprintf("internal error: unhandled type %T", node)) - } - return Ts - } -} - -var allTypes = []reflect.Type{ - reflect.TypeOf((*ast.RangeStmt)(nil)), - reflect.TypeOf((*ast.AssignStmt)(nil)), - reflect.TypeOf((*ast.IndexExpr)(nil)), - reflect.TypeOf((*ast.Ident)(nil)), - reflect.TypeOf((*ast.ValueSpec)(nil)), - reflect.TypeOf((*ast.GenDecl)(nil)), - reflect.TypeOf((*ast.BinaryExpr)(nil)), - reflect.TypeOf((*ast.ForStmt)(nil)), - reflect.TypeOf((*ast.ArrayType)(nil)), - reflect.TypeOf((*ast.DeferStmt)(nil)), - reflect.TypeOf((*ast.MapType)(nil)), - reflect.TypeOf((*ast.ReturnStmt)(nil)), - reflect.TypeOf((*ast.SliceExpr)(nil)), - reflect.TypeOf((*ast.StarExpr)(nil)), - reflect.TypeOf((*ast.UnaryExpr)(nil)), - reflect.TypeOf((*ast.SendStmt)(nil)), - reflect.TypeOf((*ast.SelectStmt)(nil)), - reflect.TypeOf((*ast.ImportSpec)(nil)), - reflect.TypeOf((*ast.IfStmt)(nil)), - reflect.TypeOf((*ast.GoStmt)(nil)), - reflect.TypeOf((*ast.Field)(nil)), - reflect.TypeOf((*ast.SelectorExpr)(nil)), - reflect.TypeOf((*ast.StructType)(nil)), - reflect.TypeOf((*ast.KeyValueExpr)(nil)), - reflect.TypeOf((*ast.FuncType)(nil)), - reflect.TypeOf((*ast.FuncLit)(nil)), - reflect.TypeOf((*ast.FuncDecl)(nil)), - reflect.TypeOf((*ast.ChanType)(nil)), - reflect.TypeOf((*ast.CallExpr)(nil)), - reflect.TypeOf((*ast.CaseClause)(nil)), - reflect.TypeOf((*ast.CommClause)(nil)), - reflect.TypeOf((*ast.CompositeLit)(nil)), - reflect.TypeOf((*ast.EmptyStmt)(nil)), - reflect.TypeOf((*ast.SwitchStmt)(nil)), - reflect.TypeOf((*ast.TypeSwitchStmt)(nil)), - reflect.TypeOf((*ast.TypeAssertExpr)(nil)), - reflect.TypeOf((*ast.TypeSpec)(nil)), - reflect.TypeOf((*ast.InterfaceType)(nil)), - reflect.TypeOf((*ast.BranchStmt)(nil)), - reflect.TypeOf((*ast.IncDecStmt)(nil)), - reflect.TypeOf((*ast.BasicLit)(nil)), -} - -var nodeToASTTypes = map[reflect.Type][]reflect.Type{ - reflect.TypeOf(String("")): nil, - reflect.TypeOf(Token(0)): nil, - reflect.TypeOf(List{}): {reflect.TypeOf((*ast.BlockStmt)(nil)), reflect.TypeOf((*ast.FieldList)(nil))}, - reflect.TypeOf(Builtin{}): {reflect.TypeOf((*ast.Ident)(nil))}, - reflect.TypeOf(Object{}): {reflect.TypeOf((*ast.Ident)(nil))}, - reflect.TypeOf(Function{}): {reflect.TypeOf((*ast.Ident)(nil)), reflect.TypeOf((*ast.SelectorExpr)(nil))}, - reflect.TypeOf(Any{}): allTypes, - reflect.TypeOf(RangeStmt{}): {reflect.TypeOf((*ast.RangeStmt)(nil))}, - reflect.TypeOf(AssignStmt{}): {reflect.TypeOf((*ast.AssignStmt)(nil))}, - reflect.TypeOf(IndexExpr{}): {reflect.TypeOf((*ast.IndexExpr)(nil))}, - reflect.TypeOf(Ident{}): {reflect.TypeOf((*ast.Ident)(nil))}, - reflect.TypeOf(ValueSpec{}): {reflect.TypeOf((*ast.ValueSpec)(nil))}, - reflect.TypeOf(GenDecl{}): {reflect.TypeOf((*ast.GenDecl)(nil))}, - reflect.TypeOf(BinaryExpr{}): {reflect.TypeOf((*ast.BinaryExpr)(nil))}, - reflect.TypeOf(ForStmt{}): {reflect.TypeOf((*ast.ForStmt)(nil))}, - reflect.TypeOf(ArrayType{}): {reflect.TypeOf((*ast.ArrayType)(nil))}, - reflect.TypeOf(DeferStmt{}): {reflect.TypeOf((*ast.DeferStmt)(nil))}, - reflect.TypeOf(MapType{}): {reflect.TypeOf((*ast.MapType)(nil))}, - reflect.TypeOf(ReturnStmt{}): {reflect.TypeOf((*ast.ReturnStmt)(nil))}, - reflect.TypeOf(SliceExpr{}): {reflect.TypeOf((*ast.SliceExpr)(nil))}, - reflect.TypeOf(StarExpr{}): {reflect.TypeOf((*ast.StarExpr)(nil))}, - reflect.TypeOf(UnaryExpr{}): {reflect.TypeOf((*ast.UnaryExpr)(nil))}, - reflect.TypeOf(SendStmt{}): {reflect.TypeOf((*ast.SendStmt)(nil))}, - reflect.TypeOf(SelectStmt{}): {reflect.TypeOf((*ast.SelectStmt)(nil))}, - reflect.TypeOf(ImportSpec{}): {reflect.TypeOf((*ast.ImportSpec)(nil))}, - reflect.TypeOf(IfStmt{}): {reflect.TypeOf((*ast.IfStmt)(nil))}, - reflect.TypeOf(GoStmt{}): {reflect.TypeOf((*ast.GoStmt)(nil))}, - reflect.TypeOf(Field{}): {reflect.TypeOf((*ast.Field)(nil))}, - reflect.TypeOf(SelectorExpr{}): {reflect.TypeOf((*ast.SelectorExpr)(nil))}, - reflect.TypeOf(StructType{}): {reflect.TypeOf((*ast.StructType)(nil))}, - reflect.TypeOf(KeyValueExpr{}): {reflect.TypeOf((*ast.KeyValueExpr)(nil))}, - reflect.TypeOf(FuncType{}): {reflect.TypeOf((*ast.FuncType)(nil))}, - reflect.TypeOf(FuncLit{}): {reflect.TypeOf((*ast.FuncLit)(nil))}, - reflect.TypeOf(FuncDecl{}): {reflect.TypeOf((*ast.FuncDecl)(nil))}, - reflect.TypeOf(ChanType{}): {reflect.TypeOf((*ast.ChanType)(nil))}, - reflect.TypeOf(CallExpr{}): {reflect.TypeOf((*ast.CallExpr)(nil))}, - reflect.TypeOf(CaseClause{}): {reflect.TypeOf((*ast.CaseClause)(nil))}, - reflect.TypeOf(CommClause{}): {reflect.TypeOf((*ast.CommClause)(nil))}, - reflect.TypeOf(CompositeLit{}): {reflect.TypeOf((*ast.CompositeLit)(nil))}, - reflect.TypeOf(EmptyStmt{}): {reflect.TypeOf((*ast.EmptyStmt)(nil))}, - reflect.TypeOf(SwitchStmt{}): {reflect.TypeOf((*ast.SwitchStmt)(nil))}, - reflect.TypeOf(TypeSwitchStmt{}): {reflect.TypeOf((*ast.TypeSwitchStmt)(nil))}, - reflect.TypeOf(TypeAssertExpr{}): {reflect.TypeOf((*ast.TypeAssertExpr)(nil))}, - reflect.TypeOf(TypeSpec{}): {reflect.TypeOf((*ast.TypeSpec)(nil))}, - reflect.TypeOf(InterfaceType{}): {reflect.TypeOf((*ast.InterfaceType)(nil))}, - reflect.TypeOf(BranchStmt{}): {reflect.TypeOf((*ast.BranchStmt)(nil))}, - reflect.TypeOf(IncDecStmt{}): {reflect.TypeOf((*ast.IncDecStmt)(nil))}, - reflect.TypeOf(BasicLit{}): {reflect.TypeOf((*ast.BasicLit)(nil))}, -} - -var requiresTypeInfo = map[string]bool{ - "Function": true, - "Builtin": true, - "Object": true, -} - -type Parser struct { - // Allow nodes that rely on type information - AllowTypeInfo bool - - lex *lexer - cur item - last *item - items chan item -} - -func (p *Parser) Parse(s string) (Pattern, error) { - p.cur = item{} - p.last = nil - p.items = nil - - fset := token.NewFileSet() - p.lex = &lexer{ - f: fset.AddFile("