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Diffstat (limited to 'vendor/github.com/google/gofuzz/bytesource/bytesource.go')
-rw-r--r--vendor/github.com/google/gofuzz/bytesource/bytesource.go81
1 files changed, 0 insertions, 81 deletions
diff --git a/vendor/github.com/google/gofuzz/bytesource/bytesource.go b/vendor/github.com/google/gofuzz/bytesource/bytesource.go
deleted file mode 100644
index 5bb365949..000000000
--- a/vendor/github.com/google/gofuzz/bytesource/bytesource.go
+++ /dev/null
@@ -1,81 +0,0 @@
-/*
-Copyright 2014 Google Inc. All rights reserved.
-
-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 bytesource provides a rand.Source64 that is determined by a slice of bytes.
-package bytesource
-
-import (
- "bytes"
- "encoding/binary"
- "io"
- "math/rand"
-)
-
-// ByteSource implements rand.Source64 determined by a slice of bytes. The random numbers are
-// generated from each 8 bytes in the slice, until the last bytes are consumed, from which a
-// fallback pseudo random source is created in case more random numbers are required.
-// It also exposes a `bytes.Reader` API, which lets callers consume the bytes directly.
-type ByteSource struct {
- *bytes.Reader
- fallback rand.Source
-}
-
-// New returns a new ByteSource from a given slice of bytes.
-func New(input []byte) *ByteSource {
- s := &ByteSource{
- Reader: bytes.NewReader(input),
- fallback: rand.NewSource(0),
- }
- if len(input) > 0 {
- s.fallback = rand.NewSource(int64(s.consumeUint64()))
- }
- return s
-}
-
-func (s *ByteSource) Uint64() uint64 {
- // Return from input if it was not exhausted.
- if s.Len() > 0 {
- return s.consumeUint64()
- }
-
- // Input was exhausted, return random number from fallback (in this case fallback should not be
- // nil). Try first having a Uint64 output (Should work in current rand implementation),
- // otherwise return a conversion of Int63.
- if s64, ok := s.fallback.(rand.Source64); ok {
- return s64.Uint64()
- }
- return uint64(s.fallback.Int63())
-}
-
-func (s *ByteSource) Int63() int64 {
- return int64(s.Uint64() >> 1)
-}
-
-func (s *ByteSource) Seed(seed int64) {
- s.fallback = rand.NewSource(seed)
- s.Reader = bytes.NewReader(nil)
-}
-
-// consumeUint64 reads 8 bytes from the input and convert them to a uint64. It assumes that the the
-// bytes reader is not empty.
-func (s *ByteSource) consumeUint64() uint64 {
- var bytes [8]byte
- _, err := s.Read(bytes[:])
- if err != nil && err != io.EOF {
- panic("failed reading source") // Should not happen.
- }
- return binary.BigEndian.Uint64(bytes[:])
-}