diff options
| author | Taras Madan <tarasmadan@google.com> | 2025-01-22 16:07:17 +0100 |
|---|---|---|
| committer | Taras Madan <tarasmadan@google.com> | 2025-01-23 10:42:36 +0000 |
| commit | 7b4377ad9d8a7205416df8d6217ef2b010f89481 (patch) | |
| tree | e6fec4fd12ff807a16d847923f501075bf71d16c /vendor/github.com/google/gofuzz/bytesource | |
| parent | 475a4c203afb8b7d3af51c4fd32bb170ff32a45e (diff) | |
vendor: delete
Diffstat (limited to 'vendor/github.com/google/gofuzz/bytesource')
| -rw-r--r-- | vendor/github.com/google/gofuzz/bytesource/bytesource.go | 81 |
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[:]) -} |
