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Diffstat (limited to 'vendor/github.com/golang/protobuf/proto/encode.go')
| -rw-r--r-- | vendor/github.com/golang/protobuf/proto/encode.go | 203 |
1 files changed, 0 insertions, 203 deletions
diff --git a/vendor/github.com/golang/protobuf/proto/encode.go b/vendor/github.com/golang/protobuf/proto/encode.go deleted file mode 100644 index 3abfed2cf..000000000 --- a/vendor/github.com/golang/protobuf/proto/encode.go +++ /dev/null @@ -1,203 +0,0 @@ -// Go support for Protocol Buffers - Google's data interchange format -// -// Copyright 2010 The Go Authors. All rights reserved. -// https://github.com/golang/protobuf -// -// 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 proto - -/* - * Routines for encoding data into the wire format for protocol buffers. - */ - -import ( - "errors" - "reflect" -) - -var ( - // errRepeatedHasNil is the error returned if Marshal is called with - // a struct with a repeated field containing a nil element. - errRepeatedHasNil = errors.New("proto: repeated field has nil element") - - // errOneofHasNil is the error returned if Marshal is called with - // a struct with a oneof field containing a nil element. - errOneofHasNil = errors.New("proto: oneof field has nil value") - - // ErrNil is the error returned if Marshal is called with nil. - ErrNil = errors.New("proto: Marshal called with nil") - - // ErrTooLarge is the error returned if Marshal is called with a - // message that encodes to >2GB. - ErrTooLarge = errors.New("proto: message encodes to over 2 GB") -) - -// The fundamental encoders that put bytes on the wire. -// Those that take integer types all accept uint64 and are -// therefore of type valueEncoder. - -const maxVarintBytes = 10 // maximum length of a varint - -// EncodeVarint returns the varint encoding of x. -// This is the format for the -// int32, int64, uint32, uint64, bool, and enum -// protocol buffer types. -// Not used by the package itself, but helpful to clients -// wishing to use the same encoding. -func EncodeVarint(x uint64) []byte { - var buf [maxVarintBytes]byte - var n int - for n = 0; x > 127; n++ { - buf[n] = 0x80 | uint8(x&0x7F) - x >>= 7 - } - buf[n] = uint8(x) - n++ - return buf[0:n] -} - -// EncodeVarint writes a varint-encoded integer to the Buffer. -// This is the format for the -// int32, int64, uint32, uint64, bool, and enum -// protocol buffer types. -func (p *Buffer) EncodeVarint(x uint64) error { - for x >= 1<<7 { - p.buf = append(p.buf, uint8(x&0x7f|0x80)) - x >>= 7 - } - p.buf = append(p.buf, uint8(x)) - return nil -} - -// SizeVarint returns the varint encoding size of an integer. -func SizeVarint(x uint64) int { - switch { - case x < 1<<7: - return 1 - case x < 1<<14: - return 2 - case x < 1<<21: - return 3 - case x < 1<<28: - return 4 - case x < 1<<35: - return 5 - case x < 1<<42: - return 6 - case x < 1<<49: - return 7 - case x < 1<<56: - return 8 - case x < 1<<63: - return 9 - } - return 10 -} - -// EncodeFixed64 writes a 64-bit integer to the Buffer. -// This is the format for the -// fixed64, sfixed64, and double protocol buffer types. -func (p *Buffer) EncodeFixed64(x uint64) error { - p.buf = append(p.buf, - uint8(x), - uint8(x>>8), - uint8(x>>16), - uint8(x>>24), - uint8(x>>32), - uint8(x>>40), - uint8(x>>48), - uint8(x>>56)) - return nil -} - -// EncodeFixed32 writes a 32-bit integer to the Buffer. -// This is the format for the -// fixed32, sfixed32, and float protocol buffer types. -func (p *Buffer) EncodeFixed32(x uint64) error { - p.buf = append(p.buf, - uint8(x), - uint8(x>>8), - uint8(x>>16), - uint8(x>>24)) - return nil -} - -// EncodeZigzag64 writes a zigzag-encoded 64-bit integer -// to the Buffer. -// This is the format used for the sint64 protocol buffer type. -func (p *Buffer) EncodeZigzag64(x uint64) error { - // use signed number to get arithmetic right shift. - return p.EncodeVarint(uint64((x << 1) ^ uint64((int64(x) >> 63)))) -} - -// EncodeZigzag32 writes a zigzag-encoded 32-bit integer -// to the Buffer. -// This is the format used for the sint32 protocol buffer type. -func (p *Buffer) EncodeZigzag32(x uint64) error { - // use signed number to get arithmetic right shift. - return p.EncodeVarint(uint64((uint32(x) << 1) ^ uint32((int32(x) >> 31)))) -} - -// EncodeRawBytes writes a count-delimited byte buffer to the Buffer. -// This is the format used for the bytes protocol buffer -// type and for embedded messages. -func (p *Buffer) EncodeRawBytes(b []byte) error { - p.EncodeVarint(uint64(len(b))) - p.buf = append(p.buf, b...) - return nil -} - -// EncodeStringBytes writes an encoded string to the Buffer. -// This is the format used for the proto2 string type. -func (p *Buffer) EncodeStringBytes(s string) error { - p.EncodeVarint(uint64(len(s))) - p.buf = append(p.buf, s...) - return nil -} - -// Marshaler is the interface representing objects that can marshal themselves. -type Marshaler interface { - Marshal() ([]byte, error) -} - -// EncodeMessage writes the protocol buffer to the Buffer, -// prefixed by a varint-encoded length. -func (p *Buffer) EncodeMessage(pb Message) error { - siz := Size(pb) - p.EncodeVarint(uint64(siz)) - return p.Marshal(pb) -} - -// All protocol buffer fields are nillable, but be careful. -func isNil(v reflect.Value) bool { - switch v.Kind() { - case reflect.Interface, reflect.Map, reflect.Ptr, reflect.Slice: - return v.IsNil() - } - return false -} |