diff options
Diffstat (limited to 'vendor/github.com/gogo/protobuf/proto')
32 files changed, 14040 insertions, 0 deletions
diff --git a/vendor/github.com/gogo/protobuf/proto/Makefile b/vendor/github.com/gogo/protobuf/proto/Makefile new file mode 100644 index 0000000..00d65f3 --- /dev/null +++ b/vendor/github.com/gogo/protobuf/proto/Makefile @@ -0,0 +1,43 @@ +# 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. + +install: + go install + +test: install generate-test-pbs + go test + + +generate-test-pbs: + make install + make -C test_proto + make -C proto3_proto + make diff --git a/vendor/github.com/gogo/protobuf/proto/clone.go b/vendor/github.com/gogo/protobuf/proto/clone.go new file mode 100644 index 0000000..a26b046 --- /dev/null +++ b/vendor/github.com/gogo/protobuf/proto/clone.go @@ -0,0 +1,258 @@ +// Go support for Protocol Buffers - Google's data interchange format +// +// Copyright 2011 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. + +// Protocol buffer deep copy and merge. +// TODO: RawMessage. + +package proto + +import ( + "fmt" + "log" + "reflect" + "strings" +) + +// Clone returns a deep copy of a protocol buffer. +func Clone(src Message) Message { + in := reflect.ValueOf(src) + if in.IsNil() { + return src + } + out := reflect.New(in.Type().Elem()) + dst := out.Interface().(Message) + Merge(dst, src) + return dst +} + +// Merger is the interface representing objects that can merge messages of the same type. +type Merger interface { + // Merge merges src into this message. + // Required and optional fields that are set in src will be set to that value in dst. + // Elements of repeated fields will be appended. + // + // Merge may panic if called with a different argument type than the receiver. + Merge(src Message) +} + +// generatedMerger is the custom merge method that generated protos will have. +// We must add this method since a generate Merge method will conflict with +// many existing protos that have a Merge data field already defined. +type generatedMerger interface { + XXX_Merge(src Message) +} + +// Merge merges src into dst. +// Required and optional fields that are set in src will be set to that value in dst. +// Elements of repeated fields will be appended. +// Merge panics if src and dst are not the same type, or if dst is nil. +func Merge(dst, src Message) { + if m, ok := dst.(Merger); ok { + m.Merge(src) + return + } + + in := reflect.ValueOf(src) + out := reflect.ValueOf(dst) + if out.IsNil() { + panic("proto: nil destination") + } + if in.Type() != out.Type() { + panic(fmt.Sprintf("proto.Merge(%T, %T) type mismatch", dst, src)) + } + if in.IsNil() { + return // Merge from nil src is a noop + } + if m, ok := dst.(generatedMerger); ok { + m.XXX_Merge(src) + return + } + mergeStruct(out.Elem(), in.Elem()) +} + +func mergeStruct(out, in reflect.Value) { + sprop := GetProperties(in.Type()) + for i := 0; i < in.NumField(); i++ { + f := in.Type().Field(i) + if strings.HasPrefix(f.Name, "XXX_") { + continue + } + mergeAny(out.Field(i), in.Field(i), false, sprop.Prop[i]) + } + + if emIn, ok := in.Addr().Interface().(extensionsBytes); ok { + emOut := out.Addr().Interface().(extensionsBytes) + bIn := emIn.GetExtensions() + bOut := emOut.GetExtensions() + *bOut = append(*bOut, *bIn...) + } else if emIn, err := extendable(in.Addr().Interface()); err == nil { + emOut, _ := extendable(out.Addr().Interface()) + mIn, muIn := emIn.extensionsRead() + if mIn != nil { + mOut := emOut.extensionsWrite() + muIn.Lock() + mergeExtension(mOut, mIn) + muIn.Unlock() + } + } + + uf := in.FieldByName("XXX_unrecognized") + if !uf.IsValid() { + return + } + uin := uf.Bytes() + if len(uin) > 0 { + out.FieldByName("XXX_unrecognized").SetBytes(append([]byte(nil), uin...)) + } +} + +// mergeAny performs a merge between two values of the same type. +// viaPtr indicates whether the values were indirected through a pointer (implying proto2). +// prop is set if this is a struct field (it may be nil). +func mergeAny(out, in reflect.Value, viaPtr bool, prop *Properties) { + if in.Type() == protoMessageType { + if !in.IsNil() { + if out.IsNil() { + out.Set(reflect.ValueOf(Clone(in.Interface().(Message)))) + } else { + Merge(out.Interface().(Message), in.Interface().(Message)) + } + } + return + } + switch in.Kind() { + case reflect.Bool, reflect.Float32, reflect.Float64, reflect.Int32, reflect.Int64, + reflect.String, reflect.Uint32, reflect.Uint64: + if !viaPtr && isProto3Zero(in) { + return + } + out.Set(in) + case reflect.Interface: + // Probably a oneof field; copy non-nil values. + if in.IsNil() { + return + } + // Allocate destination if it is not set, or set to a different type. + // Otherwise we will merge as normal. + if out.IsNil() || out.Elem().Type() != in.Elem().Type() { + out.Set(reflect.New(in.Elem().Elem().Type())) // interface -> *T -> T -> new(T) + } + mergeAny(out.Elem(), in.Elem(), false, nil) + case reflect.Map: + if in.Len() == 0 { + return + } + if out.IsNil() { + out.Set(reflect.MakeMap(in.Type())) + } + // For maps with value types of *T or []byte we need to deep copy each value. + elemKind := in.Type().Elem().Kind() + for _, key := range in.MapKeys() { + var val reflect.Value + switch elemKind { + case reflect.Ptr: + val = reflect.New(in.Type().Elem().Elem()) + mergeAny(val, in.MapIndex(key), false, nil) + case reflect.Slice: + val = in.MapIndex(key) + val = reflect.ValueOf(append([]byte{}, val.Bytes()...)) + default: + val = in.MapIndex(key) + } + out.SetMapIndex(key, val) + } + case reflect.Ptr: + if in.IsNil() { + return + } + if out.IsNil() { + out.Set(reflect.New(in.Elem().Type())) + } + mergeAny(out.Elem(), in.Elem(), true, nil) + case reflect.Slice: + if in.IsNil() { + return + } + if in.Type().Elem().Kind() == reflect.Uint8 { + // []byte is a scalar bytes field, not a repeated field. + + // Edge case: if this is in a proto3 message, a zero length + // bytes field is considered the zero value, and should not + // be merged. + if prop != nil && prop.proto3 && in.Len() == 0 { + return + } + + // Make a deep copy. + // Append to []byte{} instead of []byte(nil) so that we never end up + // with a nil result. + out.SetBytes(append([]byte{}, in.Bytes()...)) + return + } + n := in.Len() + if out.IsNil() { + out.Set(reflect.MakeSlice(in.Type(), 0, n)) + } + switch in.Type().Elem().Kind() { + case reflect.Bool, reflect.Float32, reflect.Float64, reflect.Int32, reflect.Int64, + reflect.String, reflect.Uint32, reflect.Uint64: + out.Set(reflect.AppendSlice(out, in)) + default: + for i := 0; i < n; i++ { + x := reflect.Indirect(reflect.New(in.Type().Elem())) + mergeAny(x, in.Index(i), false, nil) + out.Set(reflect.Append(out, x)) + } + } + case reflect.Struct: + mergeStruct(out, in) + default: + // unknown type, so not a protocol buffer + log.Printf("proto: don't know how to copy %v", in) + } +} + +func mergeExtension(out, in map[int32]Extension) { + for extNum, eIn := range in { + eOut := Extension{desc: eIn.desc} + if eIn.value != nil { + v := reflect.New(reflect.TypeOf(eIn.value)).Elem() + mergeAny(v, reflect.ValueOf(eIn.value), false, nil) + eOut.value = v.Interface() + } + if eIn.enc != nil { + eOut.enc = make([]byte, len(eIn.enc)) + copy(eOut.enc, eIn.enc) + } + + out[extNum] = eOut + } +} diff --git a/vendor/github.com/gogo/protobuf/proto/custom_gogo.go b/vendor/github.com/gogo/protobuf/proto/custom_gogo.go new file mode 100644 index 0000000..2455248 --- /dev/null +++ b/vendor/github.com/gogo/protobuf/proto/custom_gogo.go @@ -0,0 +1,39 @@ +// Protocol Buffers for Go with Gadgets +// +// Copyright (c) 2018, The GoGo Authors. All rights reserved. +// http://github.com/gogo/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. +// +// 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 + +import "reflect" + +type custom interface { + Marshal() ([]byte, error) + Unmarshal(data []byte) error + Size() int +} + +var customType = reflect.TypeOf((*custom)(nil)).Elem() diff --git a/vendor/github.com/gogo/protobuf/proto/decode.go b/vendor/github.com/gogo/protobuf/proto/decode.go new file mode 100644 index 0000000..d9aa3c4 --- /dev/null +++ b/vendor/github.com/gogo/protobuf/proto/decode.go @@ -0,0 +1,428 @@ +// 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 decoding protocol buffer data to construct in-memory representations. + */ + +import ( + "errors" + "fmt" + "io" +) + +// errOverflow is returned when an integer is too large to be represented. +var errOverflow = errors.New("proto: integer overflow") + +// ErrInternalBadWireType is returned by generated code when an incorrect +// wire type is encountered. It does not get returned to user code. +var ErrInternalBadWireType = errors.New("proto: internal error: bad wiretype for oneof") + +// DecodeVarint reads a varint-encoded integer from the slice. +// It returns the integer and the number of bytes consumed, or +// zero if there is not enough. +// This is the format for the +// int32, int64, uint32, uint64, bool, and enum +// protocol buffer types. +func DecodeVarint(buf []byte) (x uint64, n int) { + for shift := uint(0); shift < 64; shift += 7 { + if n >= len(buf) { + return 0, 0 + } + b := uint64(buf[n]) + n++ + x |= (b & 0x7F) << shift + if (b & 0x80) == 0 { + return x, n + } + } + + // The number is too large to represent in a 64-bit value. + return 0, 0 +} + +func (p *Buffer) decodeVarintSlow() (x uint64, err error) { + i := p.index + l := len(p.buf) + + for shift := uint(0); shift < 64; shift += 7 { + if i >= l { + err = io.ErrUnexpectedEOF + return + } + b := p.buf[i] + i++ + x |= (uint64(b) & 0x7F) << shift + if b < 0x80 { + p.index = i + return + } + } + + // The number is too large to represent in a 64-bit value. + err = errOverflow + return +} + +// DecodeVarint reads a varint-encoded integer from the Buffer. +// This is the format for the +// int32, int64, uint32, uint64, bool, and enum +// protocol buffer types. +func (p *Buffer) DecodeVarint() (x uint64, err error) { + i := p.index + buf := p.buf + + if i >= len(buf) { + return 0, io.ErrUnexpectedEOF + } else if buf[i] < 0x80 { + p.index++ + return uint64(buf[i]), nil + } else if len(buf)-i < 10 { + return p.decodeVarintSlow() + } + + var b uint64 + // we already checked the first byte + x = uint64(buf[i]) - 0x80 + i++ + + b = uint64(buf[i]) + i++ + x += b << 7 + if b&0x80 == 0 { + goto done + } + x -= 0x80 << 7 + + b = uint64(buf[i]) + i++ + x += b << 14 + if b&0x80 == 0 { + goto done + } + x -= 0x80 << 14 + + b = uint64(buf[i]) + i++ + x += b << 21 + if b&0x80 == 0 { + goto done + } + x -= 0x80 << 21 + + b = uint64(buf[i]) + i++ + x += b << 28 + if b&0x80 == 0 { + goto done + } + x -= 0x80 << 28 + + b = uint64(buf[i]) + i++ + x += b << 35 + if b&0x80 == 0 { + goto done + } + x -= 0x80 << 35 + + b = uint64(buf[i]) + i++ + x += b << 42 + if b&0x80 == 0 { + goto done + } + x -= 0x80 << 42 + + b = uint64(buf[i]) + i++ + x += b << 49 + if b&0x80 == 0 { + goto done + } + x -= 0x80 << 49 + + b = uint64(buf[i]) + i++ + x += b << 56 + if b&0x80 == 0 { + goto done + } + x -= 0x80 << 56 + + b = uint64(buf[i]) + i++ + x += b << 63 + if b&0x80 == 0 { + goto done + } + // x -= 0x80 << 63 // Always zero. + + return 0, errOverflow + +done: + p.index = i + return x, nil +} + +// DecodeFixed64 reads a 64-bit integer from the Buffer. +// This is the format for the +// fixed64, sfixed64, and double protocol buffer types. +func (p *Buffer) DecodeFixed64() (x uint64, err error) { + // x, err already 0 + i := p.index + 8 + if i < 0 || i > len(p.buf) { + err = io.ErrUnexpectedEOF + return + } + p.index = i + + x = uint64(p.buf[i-8]) + x |= uint64(p.buf[i-7]) << 8 + x |= uint64(p.buf[i-6]) << 16 + x |= uint64(p.buf[i-5]) << 24 + x |= uint64(p.buf[i-4]) << 32 + x |= uint64(p.buf[i-3]) << 40 + x |= uint64(p.buf[i-2]) << 48 + x |= uint64(p.buf[i-1]) << 56 + return +} + +// DecodeFixed32 reads a 32-bit integer from the Buffer. +// This is the format for the +// fixed32, sfixed32, and float protocol buffer types. +func (p *Buffer) DecodeFixed32() (x uint64, err error) { + // x, err already 0 + i := p.index + 4 + if i < 0 || i > len(p.buf) { + err = io.ErrUnexpectedEOF + return + } + p.index = i + + x = uint64(p.buf[i-4]) + x |= uint64(p.buf[i-3]) << 8 + x |= uint64(p.buf[i-2]) << 16 + x |= uint64(p.buf[i-1]) << 24 + return +} + +// DecodeZigzag64 reads a zigzag-encoded 64-bit integer +// from the Buffer. +// This is the format used for the sint64 protocol buffer type. +func (p *Buffer) DecodeZigzag64() (x uint64, err error) { + x, err = p.DecodeVarint() + if err != nil { + return + } + x = (x >> 1) ^ uint64((int64(x&1)<<63)>>63) + return +} + +// DecodeZigzag32 reads a zigzag-encoded 32-bit integer +// from the Buffer. +// This is the format used for the sint32 protocol buffer type. +func (p *Buffer) DecodeZigzag32() (x uint64, err error) { + x, err = p.DecodeVarint() + if err != nil { + return + } + x = uint64((uint32(x) >> 1) ^ uint32((int32(x&1)<<31)>>31)) + return +} + +// DecodeRawBytes reads a count-delimited byte buffer from the Buffer. +// This is the format used for the bytes protocol buffer +// type and for embedded messages. +func (p *Buffer) DecodeRawBytes(alloc bool) (buf []byte, err error) { + n, err := p.DecodeVarint() + if err != nil { + return nil, err + } + + nb := int(n) + if nb < 0 { + return nil, fmt.Errorf("proto: bad byte length %d", nb) + } + end := p.index + nb + if end < p.index || end > len(p.buf) { + return nil, io.ErrUnexpectedEOF + } + + if !alloc { + // todo: check if can get more uses of alloc=false + buf = p.buf[p.index:end] + p.index += nb + return + } + + buf = make([]byte, nb) + copy(buf, p.buf[p.index:]) + p.index += nb + return +} + +// DecodeStringBytes reads an encoded string from the Buffer. +// This is the format used for the proto2 string type. +func (p *Buffer) DecodeStringBytes() (s string, err error) { + buf, err := p.DecodeRawBytes(false) + if err != nil { + return + } + return string(buf), nil +} + +// Unmarshaler is the interface representing objects that can +// unmarshal themselves. The argument points to data that may be +// overwritten, so implementations should not keep references to the +// buffer. +// Unmarshal implementations should not clear the receiver. +// Any unmarshaled data should be merged into the receiver. +// Callers of Unmarshal that do not want to retain existing data +// should Reset the receiver before calling Unmarshal. +type Unmarshaler interface { + Unmarshal([]byte) error +} + +// newUnmarshaler is the interface representing objects that can +// unmarshal themselves. The semantics are identical to Unmarshaler. +// +// This exists to support protoc-gen-go generated messages. +// The proto package will stop type-asserting to this interface in the future. +// +// DO NOT DEPEND ON THIS. +type newUnmarshaler interface { + XXX_Unmarshal([]byte) error +} + +// Unmarshal parses the protocol buffer representation in buf and places the +// decoded result in pb. If the struct underlying pb does not match +// the data in buf, the results can be unpredictable. +// +// Unmarshal resets pb before starting to unmarshal, so any +// existing data in pb is always removed. Use UnmarshalMerge +// to preserve and append to existing data. +func Unmarshal(buf []byte, pb Message) error { + pb.Reset() + if u, ok := pb.(newUnmarshaler); ok { + return u.XXX_Unmarshal(buf) + } + if u, ok := pb.(Unmarshaler); ok { + return u.Unmarshal(buf) + } + return NewBuffer(buf).Unmarshal(pb) +} + +// UnmarshalMerge parses the protocol buffer representation in buf and +// writes the decoded result to pb. If the struct underlying pb does not match +// the data in buf, the results can be unpredictable. +// +// UnmarshalMerge merges into existing data in pb. +// Most code should use Unmarshal instead. +func UnmarshalMerge(buf []byte, pb Message) error { + if u, ok := pb.(newUnmarshaler); ok { + return u.XXX_Unmarshal(buf) + } + if u, ok := pb.(Unmarshaler); ok { + // NOTE: The history of proto have unfortunately been inconsistent + // whether Unmarshaler should or should not implicitly clear itself. + // Some implementations do, most do not. + // Thus, calling this here may or may not do what people want. + // + // See https://github.com/golang/protobuf/issues/424 + return u.Unmarshal(buf) + } + return NewBuffer(buf).Unmarshal(pb) +} + +// DecodeMessage reads a count-delimited message from the Buffer. +func (p *Buffer) DecodeMessage(pb Message) error { + enc, err := p.DecodeRawBytes(false) + if err != nil { + return err + } + return NewBuffer(enc).Unmarshal(pb) +} + +// DecodeGroup reads a tag-delimited group from the Buffer. +// StartGroup tag is already consumed. This function consumes +// EndGroup tag. +func (p *Buffer) DecodeGroup(pb Message) error { + b := p.buf[p.index:] + x, y := findEndGroup(b) + if x < 0 { + return io.ErrUnexpectedEOF + } + err := Unmarshal(b[:x], pb) + p.index += y + return err +} + +// Unmarshal parses the protocol buffer representation in the +// Buffer and places the decoded result in pb. If the struct +// underlying pb does not match the data in the buffer, the results can be +// unpredictable. +// +// Unlike proto.Unmarshal, this does not reset pb before starting to unmarshal. +func (p *Buffer) Unmarshal(pb Message) error { + // If the object can unmarshal itself, let it. + if u, ok := pb.(newUnmarshaler); ok { + err := u.XXX_Unmarshal(p.buf[p.index:]) + p.index = len(p.buf) + return err + } + if u, ok := pb.(Unmarshaler); ok { + // NOTE: The history of proto have unfortunately been inconsistent + // whether Unmarshaler should or should not implicitly clear itself. + // Some implementations do, most do not. + // Thus, calling this here may or may not do what people want. + // + // See https://github.com/golang/protobuf/issues/424 + err := u.Unmarshal(p.buf[p.index:]) + p.index = len(p.buf) + return err + } + + // Slow workaround for messages that aren't Unmarshalers. + // This includes some hand-coded .pb.go files and + // bootstrap protos. + // TODO: fix all of those and then add Unmarshal to + // the Message interface. Then: + // The cast above and code below can be deleted. + // The old unmarshaler can be deleted. + // Clients can call Unmarshal directly (can already do that, actually). + var info InternalMessageInfo + err := info.Unmarshal(pb, p.buf[p.index:]) + p.index = len(p.buf) + return err +} diff --git a/vendor/github.com/gogo/protobuf/proto/discard.go b/vendor/github.com/gogo/protobuf/proto/discard.go new file mode 100644 index 0000000..fe1bd7d --- /dev/null +++ b/vendor/github.com/gogo/protobuf/proto/discard.go @@ -0,0 +1,350 @@ +// Go support for Protocol Buffers - Google's data interchange format +// +// Copyright 2017 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 + +import ( + "fmt" + "reflect" + "strings" + "sync" + "sync/atomic" +) + +type generatedDiscarder interface { + XXX_DiscardUnknown() +} + +// DiscardUnknown recursively discards all unknown fields from this message +// and all embedded messages. +// +// When unmarshaling a message with unrecognized fields, the tags and values +// of such fields are preserved in the Message. This allows a later call to +// marshal to be able to produce a message that continues to have those +// unrecognized fields. To avoid this, DiscardUnknown is used to +// explicitly clear the unknown fields after unmarshaling. +// +// For proto2 messages, the unknown fields of message extensions are only +// discarded from messages that have been accessed via GetExtension. +func DiscardUnknown(m Message) { + if m, ok := m.(generatedDiscarder); ok { + m.XXX_DiscardUnknown() + return + } + // TODO: Dynamically populate a InternalMessageInfo for legacy messages, + // but the master branch has no implementation for InternalMessageInfo, + // so it would be more work to replicate that approach. + discardLegacy(m) +} + +// DiscardUnknown recursively discards all unknown fields. +func (a *InternalMessageInfo) DiscardUnknown(m Message) { + di := atomicLoadDiscardInfo(&a.discard) + if di == nil { + di = getDiscardInfo(reflect.TypeOf(m).Elem()) + atomicStoreDiscardInfo(&a.discard, di) + } + di.discard(toPointer(&m)) +} + +type discardInfo struct { + typ reflect.Type + + initialized int32 // 0: only typ is valid, 1: everything is valid + lock sync.Mutex + + fields []discardFieldInfo + unrecognized field +} + +type discardFieldInfo struct { + field field // Offset of field, guaranteed to be valid + discard func(src pointer) +} + +var ( + discardInfoMap = map[reflect.Type]*discardInfo{} + discardInfoLock sync.Mutex +) + +func getDiscardInfo(t reflect.Type) *discardInfo { + discardInfoLock.Lock() + defer discardInfoLock.Unlock() + di := discardInfoMap[t] + if di == nil { + di = &discardInfo{typ: t} + discardInfoMap[t] = di + } + return di +} + +func (di *discardInfo) discard(src pointer) { + if src.isNil() { + return // Nothing to do. + } + + if atomic.LoadInt32(&di.initialized) == 0 { + di.computeDiscardInfo() + } + + for _, fi := range di.fields { + sfp := src.offset(fi.field) + fi.discard(sfp) + } + + // For proto2 messages, only discard unknown fields in message extensions + // that have been accessed via GetExtension. + if em, err := extendable(src.asPointerTo(di.typ).Interface()); err == nil { + // Ignore lock since DiscardUnknown is not concurrency safe. + emm, _ := em.extensionsRead() + for _, mx := range emm { + if m, ok := mx.value.(Message); ok { + DiscardUnknown(m) + } + } + } + + if di.unrecognized.IsValid() { + *src.offset(di.unrecognized).toBytes() = nil + } +} + +func (di *discardInfo) computeDiscardInfo() { + di.lock.Lock() + defer di.lock.Unlock() + if di.initialized != 0 { + return + } + t := di.typ + n := t.NumField() + + for i := 0; i < n; i++ { + f := t.Field(i) + if strings.HasPrefix(f.Name, "XXX_") { + continue + } + + dfi := discardFieldInfo{field: toField(&f)} + tf := f.Type + + // Unwrap tf to get its most basic type. + var isPointer, isSlice bool + if tf.Kind() == reflect.Slice && tf.Elem().Kind() != reflect.Uint8 { + isSlice = true + tf = tf.Elem() + } + if tf.Kind() == reflect.Ptr { + isPointer = true + tf = tf.Elem() + } + if isPointer && isSlice && tf.Kind() != reflect.Struct { + panic(fmt.Sprintf("%v.%s cannot be a slice of pointers to primitive types", t, f.Name)) + } + + switch tf.Kind() { + case reflect.Struct: + switch { + case !isPointer: + panic(fmt.Sprintf("%v.%s cannot be a direct struct value", t, f.Name)) + case isSlice: // E.g., []*pb.T + discardInfo := getDiscardInfo(tf) + dfi.discard = func(src pointer) { + sps := src.getPointerSlice() + for _, sp := range sps { + if !sp.isNil() { + discardInfo.discard(sp) + } + } + } + default: // E.g., *pb.T + discardInfo := getDiscardInfo(tf) + dfi.discard = func(src pointer) { + sp := src.getPointer() + if !sp.isNil() { + discardInfo.discard(sp) + } + } + } + case reflect.Map: + switch { + case isPointer || isSlice: + panic(fmt.Sprintf("%v.%s cannot be a pointer to a map or a slice of map values", t, f.Name)) + default: // E.g., map[K]V + if tf.Elem().Kind() == reflect.Ptr { // Proto struct (e.g., *T) + dfi.discard = func(src pointer) { + sm := src.asPointerTo(tf).Elem() + if sm.Len() == 0 { + return + } + for _, key := range sm.MapKeys() { + val := sm.MapIndex(key) + DiscardUnknown(val.Interface().(Message)) + } + } + } else { + dfi.discard = func(pointer) {} // Noop + } + } + case reflect.Interface: + // Must be oneof field. + switch { + case isPointer || isSlice: + panic(fmt.Sprintf("%v.%s cannot be a pointer to a interface or a slice of interface values", t, f.Name)) + default: // E.g., interface{} + // TODO: Make this faster? + dfi.discard = func(src pointer) { + su := src.asPointerTo(tf).Elem() + if !su.IsNil() { + sv := su.Elem().Elem().Field(0) + if sv.Kind() == reflect.Ptr && sv.IsNil() { + return + } + switch sv.Type().Kind() { + case reflect.Ptr: // Proto struct (e.g., *T) + DiscardUnknown(sv.Interface().(Message)) + } + } + } + } + default: + continue + } + di.fields = append(di.fields, dfi) + } + + di.unrecognized = invalidField + if f, ok := t.FieldByName("XXX_unrecognized"); ok { + if f.Type != reflect.TypeOf([]byte{}) { + panic("expected XXX_unrecognized to be of type []byte") + } + di.unrecognized = toField(&f) + } + + atomic.StoreInt32(&di.initialized, 1) +} + +func discardLegacy(m Message) { + v := reflect.ValueOf(m) + if v.Kind() != reflect.Ptr || v.IsNil() { + return + } + v = v.Elem() + if v.Kind() != reflect.Struct { + return + } + t := v.Type() + + for i := 0; i < v.NumField(); i++ { + f := t.Field(i) + if strings.HasPrefix(f.Name, "XXX_") { + continue + } + vf := v.Field(i) + tf := f.Type + + // Unwrap tf to get its most basic type. + var isPointer, isSlice bool + if tf.Kind() == reflect.Slice && tf.Elem().Kind() != reflect.Uint8 { + isSlice = true + tf = tf.Elem() + } + if tf.Kind() == reflect.Ptr { + isPointer = true + tf = tf.Elem() + } + if isPointer && isSlice && tf.Kind() != reflect.Struct { + panic(fmt.Sprintf("%T.%s cannot be a slice of pointers to primitive types", m, f.Name)) + } + + switch tf.Kind() { + case reflect.Struct: + switch { + case !isPointer: + panic(fmt.Sprintf("%T.%s cannot be a direct struct value", m, f.Name)) + case isSlice: // E.g., []*pb.T + for j := 0; j < vf.Len(); j++ { + discardLegacy(vf.Index(j).Interface().(Message)) + } + default: // E.g., *pb.T + discardLegacy(vf.Interface().(Message)) + } + case reflect.Map: + switch { + case isPointer || isSlice: + panic(fmt.Sprintf("%T.%s cannot be a pointer to a map or a slice of map values", m, f.Name)) + default: // E.g., map[K]V + tv := vf.Type().Elem() + if tv.Kind() == reflect.Ptr && tv.Implements(protoMessageType) { // Proto struct (e.g., *T) + for _, key := range vf.MapKeys() { + val := vf.MapIndex(key) + discardLegacy(val.Interface().(Message)) + } + } + } + case reflect.Interface: + // Must be oneof field. + switch { + case isPointer || isSlice: + panic(fmt.Sprintf("%T.%s cannot be a pointer to a interface or a slice of interface values", m, f.Name)) + default: // E.g., test_proto.isCommunique_Union interface + if !vf.IsNil() && f.Tag.Get("protobuf_oneof") != "" { + vf = vf.Elem() // E.g., *test_proto.Communique_Msg + if !vf.IsNil() { + vf = vf.Elem() // E.g., test_proto.Communique_Msg + vf = vf.Field(0) // E.g., Proto struct (e.g., *T) or primitive value + if vf.Kind() == reflect.Ptr { + discardLegacy(vf.Interface().(Message)) + } + } + } + } + } + } + + if vf := v.FieldByName("XXX_unrecognized"); vf.IsValid() { + if vf.Type() != reflect.TypeOf([]byte{}) { + panic("expected XXX_unrecognized to be of type []byte") + } + vf.Set(reflect.ValueOf([]byte(nil))) + } + + // For proto2 messages, only discard unknown fields in message extensions + // that have been accessed via GetExtension. + if em, err := extendable(m); err == nil { + // Ignore lock since discardLegacy is not concurrency safe. + emm, _ := em.extensionsRead() + for _, mx := range emm { + if m, ok := mx.value.(Message); ok { + discardLegacy(m) + } + } + } +} diff --git a/vendor/github.com/gogo/protobuf/proto/duration.go b/vendor/github.com/gogo/protobuf/proto/duration.go new file mode 100644 index 0000000..93464c9 --- /dev/null +++ b/vendor/github.com/gogo/protobuf/proto/duration.go @@ -0,0 +1,100 @@ +// Go support for Protocol Buffers - Google's data interchange format +// +// Copyright 2016 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 + +// This file implements conversions between google.protobuf.Duration +// and time.Duration. + +import ( + "errors" + "fmt" + "time" +) + +const ( + // Range of a Duration in seconds, as specified in + // google/protobuf/duration.proto. This is about 10,000 years in seconds. + maxSeconds = int64(10000 * 365.25 * 24 * 60 * 60) + minSeconds = -maxSeconds +) + +// validateDuration determines whether the Duration is valid according to the +// definition in google/protobuf/duration.proto. A valid Duration +// may still be too large to fit into a time.Duration (the range of Duration +// is about 10,000 years, and the range of time.Duration is about 290). +func validateDuration(d *duration) error { + if d == nil { + return errors.New("duration: nil Duration") + } + if d.Seconds < minSeconds || d.Seconds > maxSeconds { + return fmt.Errorf("duration: %#v: seconds out of range", d) + } + if d.Nanos <= -1e9 || d.Nanos >= 1e9 { + return fmt.Errorf("duration: %#v: nanos out of range", d) + } + // Seconds and Nanos must have the same sign, unless d.Nanos is zero. + if (d.Seconds < 0 && d.Nanos > 0) || (d.Seconds > 0 && d.Nanos < 0) { + return fmt.Errorf("duration: %#v: seconds and nanos have different signs", d) + } + return nil +} + +// DurationFromProto converts a Duration to a time.Duration. DurationFromProto +// returns an error if the Duration is invalid or is too large to be +// represented in a time.Duration. +func durationFromProto(p *duration) (time.Duration, error) { + if err := validateDuration(p); err != nil { + return 0, err + } + d := time.Duration(p.Seconds) * time.Second + if int64(d/time.Second) != p.Seconds { + return 0, fmt.Errorf("duration: %#v is out of range for time.Duration", p) + } + if p.Nanos != 0 { + d += time.Duration(p.Nanos) + if (d < 0) != (p.Nanos < 0) { + return 0, fmt.Errorf("duration: %#v is out of range for time.Duration", p) + } + } + return d, nil +} + +// DurationProto converts a time.Duration to a Duration. +func durationProto(d time.Duration) *duration { + nanos := d.Nanoseconds() + secs := nanos / 1e9 + nanos -= secs * 1e9 + return &duration{ + Seconds: secs, + Nanos: int32(nanos), + } +} diff --git a/vendor/github.com/gogo/protobuf/proto/duration_gogo.go b/vendor/github.com/gogo/protobuf/proto/duration_gogo.go new file mode 100644 index 0000000..e748e17 --- /dev/null +++ b/vendor/github.com/gogo/protobuf/proto/duration_gogo.go @@ -0,0 +1,49 @@ +// Protocol Buffers for Go with Gadgets +// +// Copyright (c) 2016, The GoGo Authors. All rights reserved. +// http://github.com/gogo/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. +// +// 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 + +import ( + "reflect" + "time" +) + +var durationType = reflect.TypeOf((*time.Duration)(nil)).Elem() + +type duration struct { + Seconds int64 `protobuf:"varint,1,opt,name=seconds,proto3" json:"seconds,omitempty"` + Nanos int32 `protobuf:"varint,2,opt,name=nanos,proto3" json:"nanos,omitempty"` +} + +func (m *duration) Reset() { *m = duration{} } +func (*duration) ProtoMessage() {} +func (*duration) String() string { return "duration<string>" } + +func init() { + RegisterType((*duration)(nil), "gogo.protobuf.proto.duration") +} diff --git a/vendor/github.com/gogo/protobuf/proto/encode.go b/vendor/github.com/gogo/protobuf/proto/encode.go new file mode 100644 index 0000000..4c35d33 --- /dev/null +++ b/vendor/github.com/gogo/protobuf/proto/encode.go @@ -0,0 +1,218 @@ +// 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" + "fmt" + "reflect" +) + +// RequiredNotSetError is an error type returned by either Marshal or Unmarshal. +// Marshal reports this when a required field is not initialized. +// Unmarshal reports this when a required field is missing from the wire data. +type RequiredNotSetError struct { + field string +} + +func (e *RequiredNotSetError) Error() string { + if e.field == "" { + return fmt.Sprintf("proto: required field not set") + } + return fmt.Sprintf("proto: required field %q not set", e.field) +} + +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 +} diff --git a/vendor/github.com/gogo/protobuf/proto/encode_gogo.go b/vendor/github.com/gogo/protobuf/proto/encode_gogo.go new file mode 100644 index 0000000..0f5fb17 --- /dev/null +++ b/vendor/github.com/gogo/protobuf/proto/encode_gogo.go @@ -0,0 +1,33 @@ +// Protocol Buffers for Go with Gadgets +// +// Copyright (c) 2013, The GoGo Authors. All rights reserved. +// http://github.com/gogo/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. +// +// 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 + +func NewRequiredNotSetError(field string) *RequiredNotSetError { + return &RequiredNotSetError{field} +} diff --git a/vendor/github.com/gogo/protobuf/proto/equal.go b/vendor/github.com/gogo/protobuf/proto/equal.go new file mode 100644 index 0000000..d4db5a1 --- /dev/null +++ b/vendor/github.com/gogo/protobuf/proto/equal.go @@ -0,0 +1,300 @@ +// Go support for Protocol Buffers - Google's data interchange format +// +// Copyright 2011 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. + +// Protocol buffer comparison. + +package proto + +import ( + "bytes" + "log" + "reflect" + "strings" +) + +/* +Equal returns true iff protocol buffers a and b are equal. +The arguments must both be pointers to protocol buffer structs. + +Equality is defined in this way: + - Two messages are equal iff they are the same type, + corresponding fields are equal, unknown field sets + are equal, and extensions sets are equal. + - Two set scalar fields are equal iff their values are equal. + If the fields are of a floating-point type, remember that + NaN != x for all x, including NaN. If the message is defined + in a proto3 .proto file, fields are not "set"; specifically, + zero length proto3 "bytes" fields are equal (nil == {}). + - Two repeated fields are equal iff their lengths are the same, + and their corresponding elements are equal. Note a "bytes" field, + although represented by []byte, is not a repeated field and the + rule for the scalar fields described above applies. + - Two unset fields are equal. + - Two unknown field sets are equal if their current + encoded state is equal. + - Two extension sets are equal iff they have corresponding + elements that are pairwise equal. + - Two map fields are equal iff their lengths are the same, + and they contain the same set of elements. Zero-length map + fields are equal. + - Every other combination of things are not equal. + +The return value is undefined if a and b are not protocol buffers. +*/ +func Equal(a, b Message) bool { + if a == nil || b == nil { + return a == b + } + v1, v2 := reflect.ValueOf(a), reflect.ValueOf(b) + if v1.Type() != v2.Type() { + return false + } + if v1.Kind() == reflect.Ptr { + if v1.IsNil() { + return v2.IsNil() + } + if v2.IsNil() { + return false + } + v1, v2 = v1.Elem(), v2.Elem() + } + if v1.Kind() != reflect.Struct { + return false + } + return equalStruct(v1, v2) +} + +// v1 and v2 are known to have the same type. +func equalStruct(v1, v2 reflect.Value) bool { + sprop := GetProperties(v1.Type()) + for i := 0; i < v1.NumField(); i++ { + f := v1.Type().Field(i) + if strings.HasPrefix(f.Name, "XXX_") { + continue + } + f1, f2 := v1.Field(i), v2.Field(i) + if f.Type.Kind() == reflect.Ptr { + if n1, n2 := f1.IsNil(), f2.IsNil(); n1 && n2 { + // both unset + continue + } else if n1 != n2 { + // set/unset mismatch + return false + } + f1, f2 = f1.Elem(), f2.Elem() + } + if !equalAny(f1, f2, sprop.Prop[i]) { + return false + } + } + + if em1 := v1.FieldByName("XXX_InternalExtensions"); em1.IsValid() { + em2 := v2.FieldByName("XXX_InternalExtensions") + if !equalExtensions(v1.Type(), em1.Interface().(XXX_InternalExtensions), em2.Interface().(XXX_InternalExtensions)) { + return false + } + } + + if em1 := v1.FieldByName("XXX_extensions"); em1.IsValid() { + em2 := v2.FieldByName("XXX_extensions") + if !equalExtMap(v1.Type(), em1.Interface().(map[int32]Extension), em2.Interface().(map[int32]Extension)) { + return false + } + } + + uf := v1.FieldByName("XXX_unrecognized") + if !uf.IsValid() { + return true + } + + u1 := uf.Bytes() + u2 := v2.FieldByName("XXX_unrecognized").Bytes() + return bytes.Equal(u1, u2) +} + +// v1 and v2 are known to have the same type. +// prop may be nil. +func equalAny(v1, v2 reflect.Value, prop *Properties) bool { + if v1.Type() == protoMessageType { + m1, _ := v1.Interface().(Message) + m2, _ := v2.Interface().(Message) + return Equal(m1, m2) + } + switch v1.Kind() { + case reflect.Bool: + return v1.Bool() == v2.Bool() + case reflect.Float32, reflect.Float64: + return v1.Float() == v2.Float() + case reflect.Int32, reflect.Int64: + return v1.Int() == v2.Int() + case reflect.Interface: + // Probably a oneof field; compare the inner values. + n1, n2 := v1.IsNil(), v2.IsNil() + if n1 || n2 { + return n1 == n2 + } + e1, e2 := v1.Elem(), v2.Elem() + if e1.Type() != e2.Type() { + return false + } + return equalAny(e1, e2, nil) + case reflect.Map: + if v1.Len() != v2.Len() { + return false + } + for _, key := range v1.MapKeys() { + val2 := v2.MapIndex(key) + if !val2.IsValid() { + // This key was not found in the second map. + return false + } + if !equalAny(v1.MapIndex(key), val2, nil) { + return false + } + } + return true + case reflect.Ptr: + // Maps may have nil values in them, so check for nil. + if v1.IsNil() && v2.IsNil() { + return true + } + if v1.IsNil() != v2.IsNil() { + return false + } + return equalAny(v1.Elem(), v2.Elem(), prop) + case reflect.Slice: + if v1.Type().Elem().Kind() == reflect.Uint8 { + // short circuit: []byte + + // Edge case: if this is in a proto3 message, a zero length + // bytes field is considered the zero value. + if prop != nil && prop.proto3 && v1.Len() == 0 && v2.Len() == 0 { + return true + } + if v1.IsNil() != v2.IsNil() { + return false + } + return bytes.Equal(v1.Interface().([]byte), v2.Interface().([]byte)) + } + + if v1.Len() != v2.Len() { + return false + } + for i := 0; i < v1.Len(); i++ { + if !equalAny(v1.Index(i), v2.Index(i), prop) { + return false + } + } + return true + case reflect.String: + return v1.Interface().(string) == v2.Interface().(string) + case reflect.Struct: + return equalStruct(v1, v2) + case reflect.Uint32, reflect.Uint64: + return v1.Uint() == v2.Uint() + } + + // unknown type, so not a protocol buffer + log.Printf("proto: don't know how to compare %v", v1) + return false +} + +// base is the struct type that the extensions are based on. +// x1 and x2 are InternalExtensions. +func equalExtensions(base reflect.Type, x1, x2 XXX_InternalExtensions) bool { + em1, _ := x1.extensionsRead() + em2, _ := x2.extensionsRead() + return equalExtMap(base, em1, em2) +} + +func equalExtMap(base reflect.Type, em1, em2 map[int32]Extension) bool { + if len(em1) != len(em2) { + return false + } + + for extNum, e1 := range em1 { + e2, ok := em2[extNum] + if !ok { + return false + } + + m1, m2 := e1.value, e2.value + + if m1 == nil && m2 == nil { + // Both have only encoded form. + if bytes.Equal(e1.enc, e2.enc) { + continue + } + // The bytes are different, but the extensions might still be + // equal. We need to decode them to compare. + } + + if m1 != nil && m2 != nil { + // Both are unencoded. + if !equalAny(reflect.ValueOf(m1), reflect.ValueOf(m2), nil) { + return false + } + continue + } + + // At least one is encoded. To do a semantically correct comparison + // we need to unmarshal them first. + var desc *ExtensionDesc + if m := extensionMaps[base]; m != nil { + desc = m[extNum] + } + if desc == nil { + // If both have only encoded form and the bytes are the same, + // it is handled above. We get here when the bytes are different. + // We don't know how to decode it, so just compare them as byte + // slices. + log.Printf("proto: don't know how to compare extension %d of %v", extNum, base) + return false + } + var err error + if m1 == nil { + m1, err = decodeExtension(e1.enc, desc) + } + if m2 == nil && err == nil { + m2, err = decodeExtension(e2.enc, desc) + } + if err != nil { + // The encoded form is invalid. + log.Printf("proto: badly encoded extension %d of %v: %v", extNum, base, err) + return false + } + if !equalAny(reflect.ValueOf(m1), reflect.ValueOf(m2), nil) { + return false + } + } + + return true +} diff --git a/vendor/github.com/gogo/protobuf/proto/extensions.go b/vendor/github.com/gogo/protobuf/proto/extensions.go new file mode 100644 index 0000000..44ebd45 --- /dev/null +++ b/vendor/github.com/gogo/protobuf/proto/extensions.go @@ -0,0 +1,604 @@ +// 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 + +/* + * Types and routines for supporting protocol buffer extensions. + */ + +import ( + "errors" + "fmt" + "io" + "reflect" + "strconv" + "sync" +) + +// ErrMissingExtension is the error returned by GetExtension if the named extension is not in the message. +var ErrMissingExtension = errors.New("proto: missing extension") + +// ExtensionRange represents a range of message extensions for a protocol buffer. +// Used in code generated by the protocol compiler. +type ExtensionRange struct { + Start, End int32 // both inclusive +} + +// extendableProto is an interface implemented by any protocol buffer generated by the current +// proto compiler that may be extended. +type extendableProto interface { + Message + ExtensionRangeArray() []ExtensionRange + extensionsWrite() map[int32]Extension + extensionsRead() (map[int32]Extension, sync.Locker) +} + +// extendableProtoV1 is an interface implemented by a protocol buffer generated by the previous +// version of the proto compiler that may be extended. +type extendableProtoV1 interface { + Message + ExtensionRangeArray() []ExtensionRange + ExtensionMap() map[int32]Extension +} + +// extensionAdapter is a wrapper around extendableProtoV1 that implements extendableProto. +type extensionAdapter struct { + extendableProtoV1 +} + +func (e extensionAdapter) extensionsWrite() map[int32]Extension { + return e.ExtensionMap() +} + +func (e extensionAdapter) extensionsRead() (map[int32]Extension, sync.Locker) { + return e.ExtensionMap(), notLocker{} +} + +// notLocker is a sync.Locker whose Lock and Unlock methods are nops. +type notLocker struct{} + +func (n notLocker) Lock() {} +func (n notLocker) Unlock() {} + +// extendable returns the extendableProto interface for the given generated proto message. +// If the proto message has the old extension format, it returns a wrapper that implements +// the extendableProto interface. +func extendable(p interface{}) (extendableProto, error) { + switch p := p.(type) { + case extendableProto: + if isNilPtr(p) { + return nil, fmt.Errorf("proto: nil %T is not extendable", p) + } + return p, nil + case extendableProtoV1: + if isNilPtr(p) { + return nil, fmt.Errorf("proto: nil %T is not extendable", p) + } + return extensionAdapter{p}, nil + case extensionsBytes: + return slowExtensionAdapter{p}, nil + } + // Don't allocate a specific error containing %T: + // this is the hot path for Clone and MarshalText. + return nil, errNotExtendable +} + +var errNotExtendable = errors.New("proto: not an extendable proto.Message") + +func isNilPtr(x interface{}) bool { + v := reflect.ValueOf(x) + return v.Kind() == reflect.Ptr && v.IsNil() +} + +// XXX_InternalExtensions is an internal representation of proto extensions. +// +// Each generated message struct type embeds an anonymous XXX_InternalExtensions field, +// thus gaining the unexported 'extensions' method, which can be called only from the proto package. +// +// The methods of XXX_InternalExtensions are not concurrency safe in general, +// but calls to logically read-only methods such as has and get may be executed concurrently. +type XXX_InternalExtensions struct { + // The struct must be indirect so that if a user inadvertently copies a + // generated message and its embedded XXX_InternalExtensions, they + // avoid the mayhem of a copied mutex. + // + // The mutex serializes all logically read-only operations to p.extensionMap. + // It is up to the client to ensure that write operations to p.extensionMap are + // mutually exclusive with other accesses. + p *struct { + mu sync.Mutex + extensionMap map[int32]Extension + } +} + +// extensionsWrite returns the extension map, creating it on first use. +func (e *XXX_InternalExtensions) extensionsWrite() map[int32]Extension { + if e.p == nil { + e.p = new(struct { + mu sync.Mutex + extensionMap map[int32]Extension + }) + e.p.extensionMap = make(map[int32]Extension) + } + return e.p.extensionMap +} + +// extensionsRead returns the extensions map for read-only use. It may be nil. +// The caller must hold the returned mutex's lock when accessing Elements within the map. +func (e *XXX_InternalExtensions) extensionsRead() (map[int32]Extension, sync.Locker) { + if e.p == nil { + return nil, nil + } + return e.p.extensionMap, &e.p.mu +} + +// ExtensionDesc represents an extension specification. +// Used in generated code from the protocol compiler. +type ExtensionDesc struct { + ExtendedType Message // nil pointer to the type that is being extended + ExtensionType interface{} // nil pointer to the extension type + Field int32 // field number + Name string // fully-qualified name of extension, for text formatting + Tag string // protobuf tag style + Filename string // name of the file in which the extension is defined +} + +func (ed *ExtensionDesc) repeated() bool { + t := reflect.TypeOf(ed.ExtensionType) + return t.Kind() == reflect.Slice && t.Elem().Kind() != reflect.Uint8 +} + +// Extension represents an extension in a message. +type Extension struct { + // When an extension is stored in a message using SetExtension + // only desc and value are set. When the message is marshaled + // enc will be set to the encoded form of the message. + // + // When a message is unmarshaled and contains extensions, each + // extension will have only enc set. When such an extension is + // accessed using GetExtension (or GetExtensions) desc and value + // will be set. + desc *ExtensionDesc + value interface{} + enc []byte +} + +// SetRawExtension is for testing only. +func SetRawExtension(base Message, id int32, b []byte) { + if ebase, ok := base.(extensionsBytes); ok { + clearExtension(base, id) + ext := ebase.GetExtensions() + *ext = append(*ext, b...) + return + } + epb, err := extendable(base) + if err != nil { + return + } + extmap := epb.extensionsWrite() + extmap[id] = Extension{enc: b} +} + +// isExtensionField returns true iff the given field number is in an extension range. +func isExtensionField(pb extendableProto, field int32) bool { + for _, er := range pb.ExtensionRangeArray() { + if er.Start <= field && field <= er.End { + return true + } + } + return false +} + +// checkExtensionTypes checks that the given extension is valid for pb. +func checkExtensionTypes(pb extendableProto, extension *ExtensionDesc) error { + var pbi interface{} = pb + // Check the extended type. + if ea, ok := pbi.(extensionAdapter); ok { + pbi = ea.extendableProtoV1 + } + if ea, ok := pbi.(slowExtensionAdapter); ok { + pbi = ea.extensionsBytes + } + if a, b := reflect.TypeOf(pbi), reflect.TypeOf(extension.ExtendedType); a != b { + return fmt.Errorf("proto: bad extended type; %v does not extend %v", b, a) + } + // Check the range. + if !isExtensionField(pb, extension.Field) { + return errors.New("proto: bad extension number; not in declared ranges") + } + return nil +} + +// extPropKey is sufficient to uniquely identify an extension. +type extPropKey struct { + base reflect.Type + field int32 +} + +var extProp = struct { + sync.RWMutex + m map[extPropKey]*Properties +}{ + m: make(map[extPropKey]*Properties), +} + +func extensionProperties(ed *ExtensionDesc) *Properties { + key := extPropKey{base: reflect.TypeOf(ed.ExtendedType), field: ed.Field} + + extProp.RLock() + if prop, ok := extProp.m[key]; ok { + extProp.RUnlock() + return prop + } + extProp.RUnlock() + + extProp.Lock() + defer extProp.Unlock() + // Check again. + if prop, ok := extProp.m[key]; ok { + return prop + } + + prop := new(Properties) + prop.Init(reflect.TypeOf(ed.ExtensionType), "unknown_name", ed.Tag, nil) + extProp.m[key] = prop + return prop +} + +// HasExtension returns whether the given extension is present in pb. +func HasExtension(pb Message, extension *ExtensionDesc) bool { + if epb, doki := pb.(extensionsBytes); doki { + ext := epb.GetExtensions() + buf := *ext + o := 0 + for o < len(buf) { + tag, n := DecodeVarint(buf[o:]) + fieldNum := int32(tag >> 3) + if int32(fieldNum) == extension.Field { + return true + } + wireType := int(tag & 0x7) + o += n + l, err := size(buf[o:], wireType) + if err != nil { + return false + } + o += l + } + return false + } + // TODO: Check types, field numbers, etc.? + epb, err := extendable(pb) + if err != nil { + return false + } + extmap, mu := epb.extensionsRead() + if extmap == nil { + return false + } + mu.Lock() + _, ok := extmap[extension.Field] + mu.Unlock() + return ok +} + +// ClearExtension removes the given extension from pb. +func ClearExtension(pb Message, extension *ExtensionDesc) { + clearExtension(pb, extension.Field) +} + +func clearExtension(pb Message, fieldNum int32) { + if epb, ok := pb.(extensionsBytes); ok { + offset := 0 + for offset != -1 { + offset = deleteExtension(epb, fieldNum, offset) + } + return + } + epb, err := extendable(pb) + if err != nil { + return + } + // TODO: Check types, field numbers, etc.? + extmap := epb.extensionsWrite() + delete(extmap, fieldNum) +} + +// GetExtension retrieves a proto2 extended field from pb. +// +// If the descriptor is type complete (i.e., ExtensionDesc.ExtensionType is non-nil), +// then GetExtension parses the encoded field and returns a Go value of the specified type. +// If the field is not present, then the default value is returned (if one is specified), +// otherwise ErrMissingExtension is reported. +// +// If the descriptor is not type complete (i.e., ExtensionDesc.ExtensionType is nil), +// then GetExtension returns the raw encoded bytes of the field extension. +func GetExtension(pb Message, extension *ExtensionDesc) (interface{}, error) { + if epb, doki := pb.(extensionsBytes); doki { + ext := epb.GetExtensions() + return decodeExtensionFromBytes(extension, *ext) + } + + epb, err := extendable(pb) + if err != nil { + return nil, err + } + + if extension.ExtendedType != nil { + // can only check type if this is a complete descriptor + if cerr := checkExtensionTypes(epb, extension); cerr != nil { + return nil, cerr + } + } + + emap, mu := epb.extensionsRead() + if emap == nil { + return defaultExtensionValue(extension) + } + mu.Lock() + defer mu.Unlock() + e, ok := emap[extension.Field] + if !ok { + // defaultExtensionValue returns the default value or + // ErrMissingExtension if there is no default. + return defaultExtensionValue(extension) + } + + if e.value != nil { + // Already decoded. Check the descriptor, though. + if e.desc != extension { + // This shouldn't happen. If it does, it means that + // GetExtension was called twice with two different + // descriptors with the same field number. + return nil, errors.New("proto: descriptor conflict") + } + return e.value, nil + } + + if extension.ExtensionType == nil { + // incomplete descriptor + return e.enc, nil + } + + v, err := decodeExtension(e.enc, extension) + if err != nil { + return nil, err + } + + // Remember the decoded version and drop the encoded version. + // That way it is safe to mutate what we return. + e.value = v + e.desc = extension + e.enc = nil + emap[extension.Field] = e + return e.value, nil +} + +// defaultExtensionValue returns the default value for extension. +// If no default for an extension is defined ErrMissingExtension is returned. +func defaultExtensionValue(extension *ExtensionDesc) (interface{}, error) { + if extension.ExtensionType == nil { + // incomplete descriptor, so no default + return nil, ErrMissingExtension + } + + t := reflect.TypeOf(extension.ExtensionType) + props := extensionProperties(extension) + + sf, _, err := fieldDefault(t, props) + if err != nil { + return nil, err + } + + if sf == nil || sf.value == nil { + // There is no default value. + return nil, ErrMissingExtension + } + + if t.Kind() != reflect.Ptr { + // We do not need to return a Ptr, we can directly return sf.value. + return sf.value, nil + } + + // We need to return an interface{} that is a pointer to sf.value. + value := reflect.New(t).Elem() + value.Set(reflect.New(value.Type().Elem())) + if sf.kind == reflect.Int32 { + // We may have an int32 or an enum, but the underlying data is int32. + // Since we can't set an int32 into a non int32 reflect.value directly + // set it as a int32. + value.Elem().SetInt(int64(sf.value.(int32))) + } else { + value.Elem().Set(reflect.ValueOf(sf.value)) + } + return value.Interface(), nil +} + +// decodeExtension decodes an extension encoded in b. +func decodeExtension(b []byte, extension *ExtensionDesc) (interface{}, error) { + t := reflect.TypeOf(extension.ExtensionType) + unmarshal := typeUnmarshaler(t, extension.Tag) + + // t is a pointer to a struct, pointer to basic type or a slice. + // Allocate space to store the pointer/slice. + value := reflect.New(t).Elem() + + var err error + for { + x, n := decodeVarint(b) + if n == 0 { + return nil, io.ErrUnexpectedEOF + } + b = b[n:] + wire := int(x) & 7 + + b, err = unmarshal(b, valToPointer(value.Addr()), wire) + if err != nil { + return nil, err + } + + if len(b) == 0 { + break + } + } + return value.Interface(), nil +} + +// GetExtensions returns a slice of the extensions present in pb that are also listed in es. +// The returned slice has the same length as es; missing extensions will appear as nil elements. +func GetExtensions(pb Message, es []*ExtensionDesc) (extensions []interface{}, err error) { + epb, err := extendable(pb) + if err != nil { + return nil, err + } + extensions = make([]interface{}, len(es)) + for i, e := range es { + extensions[i], err = GetExtension(epb, e) + if err == ErrMissingExtension { + err = nil + } + if err != nil { + return + } + } + return +} + +// ExtensionDescs returns a new slice containing pb's extension descriptors, in undefined order. +// For non-registered extensions, ExtensionDescs returns an incomplete descriptor containing +// just the Field field, which defines the extension's field number. +func ExtensionDescs(pb Message) ([]*ExtensionDesc, error) { + epb, err := extendable(pb) + if err != nil { + return nil, err + } + registeredExtensions := RegisteredExtensions(pb) + + emap, mu := epb.extensionsRead() + if emap == nil { + return nil, nil + } + mu.Lock() + defer mu.Unlock() + extensions := make([]*ExtensionDesc, 0, len(emap)) + for extid, e := range emap { + desc := e.desc + if desc == nil { + desc = registeredExtensions[extid] + if desc == nil { + desc = &ExtensionDesc{Field: extid} + } + } + + extensions = append(extensions, desc) + } + return extensions, nil +} + +// SetExtension sets the specified extension of pb to the specified value. +func SetExtension(pb Message, extension *ExtensionDesc, value interface{}) error { + if epb, ok := pb.(extensionsBytes); ok { + newb, err := encodeExtension(extension, value) + if err != nil { + return err + } + bb := epb.GetExtensions() + *bb = append(*bb, newb...) + return nil + } + epb, err := extendable(pb) + if err != nil { + return err + } + if err := checkExtensionTypes(epb, extension); err != nil { + return err + } + typ := reflect.TypeOf(extension.ExtensionType) + if typ != reflect.TypeOf(value) { + return errors.New("proto: bad extension value type") + } + // nil extension values need to be caught early, because the + // encoder can't distinguish an ErrNil due to a nil extension + // from an ErrNil due to a missing field. Extensions are + // always optional, so the encoder would just swallow the error + // and drop all the extensions from the encoded message. + if reflect.ValueOf(value).IsNil() { + return fmt.Errorf("proto: SetExtension called with nil value of type %T", value) + } + + extmap := epb.extensionsWrite() + extmap[extension.Field] = Extension{desc: extension, value: value} + return nil +} + +// ClearAllExtensions clears all extensions from pb. +func ClearAllExtensions(pb Message) { + if epb, doki := pb.(extensionsBytes); doki { + ext := epb.GetExtensions() + *ext = []byte{} + return + } + epb, err := extendable(pb) + if err != nil { + return + } + m := epb.extensionsWrite() + for k := range m { + delete(m, k) + } +} + +// A global registry of extensions. +// The generated code will register the generated descriptors by calling RegisterExtension. + +var extensionMaps = make(map[reflect.Type]map[int32]*ExtensionDesc) + +// RegisterExtension is called from the generated code. +func RegisterExtension(desc *ExtensionDesc) { + st := reflect.TypeOf(desc.ExtendedType).Elem() + m := extensionMaps[st] + if m == nil { + m = make(map[int32]*ExtensionDesc) + extensionMaps[st] = m + } + if _, ok := m[desc.Field]; ok { + panic("proto: duplicate extension registered: " + st.String() + " " + strconv.Itoa(int(desc.Field))) + } + m[desc.Field] = desc +} + +// RegisteredExtensions returns a map of the registered extensions of a +// protocol buffer struct, indexed by the extension number. +// The argument pb should be a nil pointer to the struct type. +func RegisteredExtensions(pb Message) map[int32]*ExtensionDesc { + return extensionMaps[reflect.TypeOf(pb).Elem()] +} diff --git a/vendor/github.com/gogo/protobuf/proto/extensions_gogo.go b/vendor/github.com/gogo/protobuf/proto/extensions_gogo.go new file mode 100644 index 0000000..53ebd8c --- /dev/null +++ b/vendor/github.com/gogo/protobuf/proto/extensions_gogo.go @@ -0,0 +1,368 @@ +// Protocol Buffers for Go with Gadgets +// +// Copyright (c) 2013, The GoGo Authors. All rights reserved. +// http://github.com/gogo/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. +// +// 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 + +import ( + "bytes" + "errors" + "fmt" + "io" + "reflect" + "sort" + "strings" + "sync" +) + +type extensionsBytes interface { + Message + ExtensionRangeArray() []ExtensionRange + GetExtensions() *[]byte +} + +type slowExtensionAdapter struct { + extensionsBytes +} + +func (s slowExtensionAdapter) extensionsWrite() map[int32]Extension { + panic("Please report a bug to github.com/gogo/protobuf if you see this message: Writing extensions is not supported for extensions stored in a byte slice field.") +} + +func (s slowExtensionAdapter) extensionsRead() (map[int32]Extension, sync.Locker) { + b := s.GetExtensions() + m, err := BytesToExtensionsMap(*b) + if err != nil { + panic(err) + } + return m, notLocker{} +} + +func GetBoolExtension(pb Message, extension *ExtensionDesc, ifnotset bool) bool { + if reflect.ValueOf(pb).IsNil() { + return ifnotset + } + value, err := GetExtension(pb, extension) + if err != nil { + return ifnotset + } + if value == nil { + return ifnotset + } + if value.(*bool) == nil { + return ifnotset + } + return *(value.(*bool)) +} + +func (this *Extension) Equal(that *Extension) bool { + if err := this.Encode(); err != nil { + return false + } + if err := that.Encode(); err != nil { + return false + } + return bytes.Equal(this.enc, that.enc) +} + +func (this *Extension) Compare(that *Extension) int { + if err := this.Encode(); err != nil { + return 1 + } + if err := that.Encode(); err != nil { + return -1 + } + return bytes.Compare(this.enc, that.enc) +} + +func SizeOfInternalExtension(m extendableProto) (n int) { + info := getMarshalInfo(reflect.TypeOf(m)) + return info.sizeV1Extensions(m.extensionsWrite()) +} + +type sortableMapElem struct { + field int32 + ext Extension +} + +func newSortableExtensionsFromMap(m map[int32]Extension) sortableExtensions { + s := make(sortableExtensions, 0, len(m)) + for k, v := range m { + s = append(s, &sortableMapElem{field: k, ext: v}) + } + return s +} + +type sortableExtensions []*sortableMapElem + +func (this sortableExtensions) Len() int { return len(this) } + +func (this sortableExtensions) Swap(i, j int) { this[i], this[j] = this[j], this[i] } + +func (this sortableExtensions) Less(i, j int) bool { return this[i].field < this[j].field } + +func (this sortableExtensions) String() string { + sort.Sort(this) + ss := make([]string, len(this)) + for i := range this { + ss[i] = fmt.Sprintf("%d: %v", this[i].field, this[i].ext) + } + return "map[" + strings.Join(ss, ",") + "]" +} + +func StringFromInternalExtension(m extendableProto) string { + return StringFromExtensionsMap(m.extensionsWrite()) +} + +func StringFromExtensionsMap(m map[int32]Extension) string { + return newSortableExtensionsFromMap(m).String() +} + +func StringFromExtensionsBytes(ext []byte) string { + m, err := BytesToExtensionsMap(ext) + if err != nil { + panic(err) + } + return StringFromExtensionsMap(m) +} + +func EncodeInternalExtension(m extendableProto, data []byte) (n int, err error) { + return EncodeExtensionMap(m.extensionsWrite(), data) +} + +func EncodeExtensionMap(m map[int32]Extension, data []byte) (n int, err error) { + o := 0 + for _, e := range m { + if err := e.Encode(); err != nil { + return 0, err + } + n := copy(data[o:], e.enc) + if n != len(e.enc) { + return 0, io.ErrShortBuffer + } + o += n + } + return o, nil +} + +func GetRawExtension(m map[int32]Extension, id int32) ([]byte, error) { + e := m[id] + if err := e.Encode(); err != nil { + return nil, err + } + return e.enc, nil +} + +func size(buf []byte, wire int) (int, error) { + switch wire { + case WireVarint: + _, n := DecodeVarint(buf) + return n, nil + case WireFixed64: + return 8, nil + case WireBytes: + v, n := DecodeVarint(buf) + return int(v) + n, nil + case WireFixed32: + return 4, nil + case WireStartGroup: + offset := 0 + for { + u, n := DecodeVarint(buf[offset:]) + fwire := int(u & 0x7) + offset += n + if fwire == WireEndGroup { + return offset, nil + } + s, err := size(buf[offset:], wire) + if err != nil { + return 0, err + } + offset += s + } + } + return 0, fmt.Errorf("proto: can't get size for unknown wire type %d", wire) +} + +func BytesToExtensionsMap(buf []byte) (map[int32]Extension, error) { + m := make(map[int32]Extension) + i := 0 + for i < len(buf) { + tag, n := DecodeVarint(buf[i:]) + if n <= 0 { + return nil, fmt.Errorf("unable to decode varint") + } + fieldNum := int32(tag >> 3) + wireType := int(tag & 0x7) + l, err := size(buf[i+n:], wireType) + if err != nil { + return nil, err + } + end := i + int(l) + n + m[int32(fieldNum)] = Extension{enc: buf[i:end]} + i = end + } + return m, nil +} + +func NewExtension(e []byte) Extension { + ee := Extension{enc: make([]byte, len(e))} + copy(ee.enc, e) + return ee +} + +func AppendExtension(e Message, tag int32, buf []byte) { + if ee, eok := e.(extensionsBytes); eok { + ext := ee.GetExtensions() + *ext = append(*ext, buf...) + return + } + if ee, eok := e.(extendableProto); eok { + m := ee.extensionsWrite() + ext := m[int32(tag)] // may be missing + ext.enc = append(ext.enc, buf...) + m[int32(tag)] = ext + } +} + +func encodeExtension(extension *ExtensionDesc, value interface{}) ([]byte, error) { + u := getMarshalInfo(reflect.TypeOf(extension.ExtendedType)) + ei := u.getExtElemInfo(extension) + v := value + p := toAddrPointer(&v, ei.isptr) + siz := ei.sizer(p, SizeVarint(ei.wiretag)) + buf := make([]byte, 0, siz) + return ei.marshaler(buf, p, ei.wiretag, false) +} + +func decodeExtensionFromBytes(extension *ExtensionDesc, buf []byte) (interface{}, error) { + o := 0 + for o < len(buf) { + tag, n := DecodeVarint((buf)[o:]) + fieldNum := int32(tag >> 3) + wireType := int(tag & 0x7) + if o+n > len(buf) { + return nil, fmt.Errorf("unable to decode extension") + } + l, err := size((buf)[o+n:], wireType) + if err != nil { + return nil, err + } + if int32(fieldNum) == extension.Field { + if o+n+l > len(buf) { + return nil, fmt.Errorf("unable to decode extension") + } + v, err := decodeExtension((buf)[o:o+n+l], extension) + if err != nil { + return nil, err + } + return v, nil + } + o += n + l + } + return defaultExtensionValue(extension) +} + +func (this *Extension) Encode() error { + if this.enc == nil { + var err error + this.enc, err = encodeExtension(this.desc, this.value) + if err != nil { + return err + } + } + return nil +} + +func (this Extension) GoString() string { + if err := this.Encode(); err != nil { + return fmt.Sprintf("error encoding extension: %v", err) + } + return fmt.Sprintf("proto.NewExtension(%#v)", this.enc) +} + +func SetUnsafeExtension(pb Message, fieldNum int32, value interface{}) error { + typ := reflect.TypeOf(pb).Elem() + ext, ok := extensionMaps[typ] + if !ok { + return fmt.Errorf("proto: bad extended type; %s is not extendable", typ.String()) + } + desc, ok := ext[fieldNum] + if !ok { + return errors.New("proto: bad extension number; not in declared ranges") + } + return SetExtension(pb, desc, value) +} + +func GetUnsafeExtension(pb Message, fieldNum int32) (interface{}, error) { + typ := reflect.TypeOf(pb).Elem() + ext, ok := extensionMaps[typ] + if !ok { + return nil, fmt.Errorf("proto: bad extended type; %s is not extendable", typ.String()) + } + desc, ok := ext[fieldNum] + if !ok { + return nil, fmt.Errorf("unregistered field number %d", fieldNum) + } + return GetExtension(pb, desc) +} + +func NewUnsafeXXX_InternalExtensions(m map[int32]Extension) XXX_InternalExtensions { + x := &XXX_InternalExtensions{ + p: new(struct { + mu sync.Mutex + extensionMap map[int32]Extension + }), + } + x.p.extensionMap = m + return *x +} + +func GetUnsafeExtensionsMap(extendable Message) map[int32]Extension { + pb := extendable.(extendableProto) + return pb.extensionsWrite() +} + +func deleteExtension(pb extensionsBytes, theFieldNum int32, offset int) int { + ext := pb.GetExtensions() + for offset < len(*ext) { + tag, n1 := DecodeVarint((*ext)[offset:]) + fieldNum := int32(tag >> 3) + wireType := int(tag & 0x7) + n2, err := size((*ext)[offset+n1:], wireType) + if err != nil { + panic(err) + } + newOffset := offset + n1 + n2 + if fieldNum == theFieldNum { + *ext = append((*ext)[:offset], (*ext)[newOffset:]...) + return offset + } + offset = newOffset + } + return -1 +} diff --git a/vendor/github.com/gogo/protobuf/proto/lib.go b/vendor/github.com/gogo/protobuf/proto/lib.go new file mode 100644 index 0000000..37d1781 --- /dev/null +++ b/vendor/github.com/gogo/protobuf/proto/lib.go @@ -0,0 +1,929 @@ +// 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 converts data structures to and from the wire format of +protocol buffers. It works in concert with the Go source code generated +for .proto files by the protocol compiler. + +A summary of the properties of the protocol buffer interface +for a protocol buffer variable v: + + - Names are turned from camel_case to CamelCase for export. + - There are no methods on v to set fields; just treat + them as structure fields. + - There are getters that return a field's value if set, + and return the field's default value if unset. + The getters work even if the receiver is a nil message. + - The zero value for a struct is its correct initialization state. + All desired fields must be set before marshaling. + - A Reset() method will restore a protobuf struct to its zero state. + - Non-repeated fields are pointers to the values; nil means unset. + That is, optional or required field int32 f becomes F *int32. + - Repeated fields are slices. + - Helper functions are available to aid the setting of fields. + msg.Foo = proto.String("hello") // set field + - Constants are defined to hold the default values of all fields that + have them. They have the form Default_StructName_FieldName. + Because the getter methods handle defaulted values, + direct use of these constants should be rare. + - Enums are given type names and maps from names to values. + Enum values are prefixed by the enclosing message's name, or by the + enum's type name if it is a top-level enum. Enum types have a String + method, and a Enum method to assist in message construction. + - Nested messages, groups and enums have type names prefixed with the name of + the surrounding message type. + - Extensions are given descriptor names that start with E_, + followed by an underscore-delimited list of the nested messages + that contain it (if any) followed by the CamelCased name of the + extension field itself. HasExtension, ClearExtension, GetExtension + and SetExtension are functions for manipulating extensions. + - Oneof field sets are given a single field in their message, + with distinguished wrapper types for each possible field value. + - Marshal and Unmarshal are functions to encode and decode the wire format. + +When the .proto file specifies `syntax="proto3"`, there are some differences: + + - Non-repeated fields of non-message type are values instead of pointers. + - Enum types do not get an Enum method. + +The simplest way to describe this is to see an example. +Given file test.proto, containing + + package example; + + enum FOO { X = 17; } + + message Test { + required string label = 1; + optional int32 type = 2 [default=77]; + repeated int64 reps = 3; + optional group OptionalGroup = 4 { + required string RequiredField = 5; + } + oneof union { + int32 number = 6; + string name = 7; + } + } + +The resulting file, test.pb.go, is: + + package example + + import proto "github.com/gogo/protobuf/proto" + import math "math" + + type FOO int32 + const ( + FOO_X FOO = 17 + ) + var FOO_name = map[int32]string{ + 17: "X", + } + var FOO_value = map[string]int32{ + "X": 17, + } + + func (x FOO) Enum() *FOO { + p := new(FOO) + *p = x + return p + } + func (x FOO) String() string { + return proto.EnumName(FOO_name, int32(x)) + } + func (x *FOO) UnmarshalJSON(data []byte) error { + value, err := proto.UnmarshalJSONEnum(FOO_value, data) + if err != nil { + return err + } + *x = FOO(value) + return nil + } + + type Test struct { + Label *string `protobuf:"bytes,1,req,name=label" json:"label,omitempty"` + Type *int32 `protobuf:"varint,2,opt,name=type,def=77" json:"type,omitempty"` + Reps []int64 `protobuf:"varint,3,rep,name=reps" json:"reps,omitempty"` + Optionalgroup *Test_OptionalGroup `protobuf:"group,4,opt,name=OptionalGroup" json:"optionalgroup,omitempty"` + // Types that are valid to be assigned to Union: + // *Test_Number + // *Test_Name + Union isTest_Union `protobuf_oneof:"union"` + XXX_unrecognized []byte `json:"-"` + } + func (m *Test) Reset() { *m = Test{} } + func (m *Test) String() string { return proto.CompactTextString(m) } + func (*Test) ProtoMessage() {} + + type isTest_Union interface { + isTest_Union() + } + + type Test_Number struct { + Number int32 `protobuf:"varint,6,opt,name=number"` + } + type Test_Name struct { + Name string `protobuf:"bytes,7,opt,name=name"` + } + + func (*Test_Number) isTest_Union() {} + func (*Test_Name) isTest_Union() {} + + func (m *Test) GetUnion() isTest_Union { + if m != nil { + return m.Union + } + return nil + } + const Default_Test_Type int32 = 77 + + func (m *Test) GetLabel() string { + if m != nil && m.Label != nil { + return *m.Label + } + return "" + } + + func (m *Test) GetType() int32 { + if m != nil && m.Type != nil { + return *m.Type + } + return Default_Test_Type + } + + func (m *Test) GetOptionalgroup() *Test_OptionalGroup { + if m != nil { + return m.Optionalgroup + } + return nil + } + + type Test_OptionalGroup struct { + RequiredField *string `protobuf:"bytes,5,req" json:"RequiredField,omitempty"` + } + func (m *Test_OptionalGroup) Reset() { *m = Test_OptionalGroup{} } + func (m *Test_OptionalGroup) String() string { return proto.CompactTextString(m) } + + func (m *Test_OptionalGroup) GetRequiredField() string { + if m != nil && m.RequiredField != nil { + return *m.RequiredField + } + return "" + } + + func (m *Test) GetNumber() int32 { + if x, ok := m.GetUnion().(*Test_Number); ok { + return x.Number + } + return 0 + } + + func (m *Test) GetName() string { + if x, ok := m.GetUnion().(*Test_Name); ok { + return x.Name + } + return "" + } + + func init() { + proto.RegisterEnum("example.FOO", FOO_name, FOO_value) + } + +To create and play with a Test object: + + package main + + import ( + "log" + + "github.com/gogo/protobuf/proto" + pb "./example.pb" + ) + + func main() { + test := &pb.Test{ + Label: proto.String("hello"), + Type: proto.Int32(17), + Reps: []int64{1, 2, 3}, + Optionalgroup: &pb.Test_OptionalGroup{ + RequiredField: proto.String("good bye"), + }, + Union: &pb.Test_Name{"fred"}, + } + data, err := proto.Marshal(test) + if err != nil { + log.Fatal("marshaling error: ", err) + } + newTest := &pb.Test{} + err = proto.Unmarshal(data, newTest) + if err != nil { + log.Fatal("unmarshaling error: ", err) + } + // Now test and newTest contain the same data. + if test.GetLabel() != newTest.GetLabel() { + log.Fatalf("data mismatch %q != %q", test.GetLabel(), newTest.GetLabel()) + } + // Use a type switch to determine which oneof was set. + switch u := test.Union.(type) { + case *pb.Test_Number: // u.Number contains the number. + case *pb.Test_Name: // u.Name contains the string. + } + // etc. + } +*/ +package proto + +import ( + "encoding/json" + "errors" + "fmt" + "log" + "reflect" + "sort" + "strconv" + "sync" +) + +var errInvalidUTF8 = errors.New("proto: invalid UTF-8 string") + +// Message is implemented by generated protocol buffer messages. +type Message interface { + Reset() + String() string + ProtoMessage() +} + +// Stats records allocation details about the protocol buffer encoders +// and decoders. Useful for tuning the library itself. +type Stats struct { + Emalloc uint64 // mallocs in encode + Dmalloc uint64 // mallocs in decode + Encode uint64 // number of encodes + Decode uint64 // number of decodes + Chit uint64 // number of cache hits + Cmiss uint64 // number of cache misses + Size uint64 // number of sizes +} + +// Set to true to enable stats collection. +const collectStats = false + +var stats Stats + +// GetStats returns a copy of the global Stats structure. +func GetStats() Stats { return stats } + +// A Buffer is a buffer manager for marshaling and unmarshaling +// protocol buffers. It may be reused between invocations to +// reduce memory usage. It is not necessary to use a Buffer; +// the global functions Marshal and Unmarshal create a +// temporary Buffer and are fine for most applications. +type Buffer struct { + buf []byte // encode/decode byte stream + index int // read point + + deterministic bool +} + +// NewBuffer allocates a new Buffer and initializes its internal data to +// the contents of the argument slice. +func NewBuffer(e []byte) *Buffer { + return &Buffer{buf: e} +} + +// Reset resets the Buffer, ready for marshaling a new protocol buffer. +func (p *Buffer) Reset() { + p.buf = p.buf[0:0] // for reading/writing + p.index = 0 // for reading +} + +// SetBuf replaces the internal buffer with the slice, +// ready for unmarshaling the contents of the slice. +func (p *Buffer) SetBuf(s []byte) { + p.buf = s + p.index = 0 +} + +// Bytes returns the contents of the Buffer. +func (p *Buffer) Bytes() []byte { return p.buf } + +// SetDeterministic sets whether to use deterministic serialization. +// +// Deterministic serialization guarantees that for a given binary, equal +// messages will always be serialized to the same bytes. This implies: +// +// - Repeated serialization of a message will return the same bytes. +// - Different processes of the same binary (which may be executing on +// different machines) will serialize equal messages to the same bytes. +// +// Note that the deterministic serialization is NOT canonical across +// languages. It is not guaranteed to remain stable over time. It is unstable +// across different builds with schema changes due to unknown fields. +// Users who need canonical serialization (e.g., persistent storage in a +// canonical form, fingerprinting, etc.) should define their own +// canonicalization specification and implement their own serializer rather +// than relying on this API. +// +// If deterministic serialization is requested, map entries will be sorted +// by keys in lexographical order. This is an implementation detail and +// subject to change. +func (p *Buffer) SetDeterministic(deterministic bool) { + p.deterministic = deterministic +} + +/* + * Helper routines for simplifying the creation of optional fields of basic type. + */ + +// Bool is a helper routine that allocates a new bool value +// to store v and returns a pointer to it. +func Bool(v bool) *bool { + return &v +} + +// Int32 is a helper routine that allocates a new int32 value +// to store v and returns a pointer to it. +func Int32(v int32) *int32 { + return &v +} + +// Int is a helper routine that allocates a new int32 value +// to store v and returns a pointer to it, but unlike Int32 +// its argument value is an int. +func Int(v int) *int32 { + p := new(int32) + *p = int32(v) + return p +} + +// Int64 is a helper routine that allocates a new int64 value +// to store v and returns a pointer to it. +func Int64(v int64) *int64 { + return &v +} + +// Float32 is a helper routine that allocates a new float32 value +// to store v and returns a pointer to it. +func Float32(v float32) *float32 { + return &v +} + +// Float64 is a helper routine that allocates a new float64 value +// to store v and returns a pointer to it. +func Float64(v float64) *float64 { + return &v +} + +// Uint32 is a helper routine that allocates a new uint32 value +// to store v and returns a pointer to it. +func Uint32(v uint32) *uint32 { + return &v +} + +// Uint64 is a helper routine that allocates a new uint64 value +// to store v and returns a pointer to it. +func Uint64(v uint64) *uint64 { + return &v +} + +// String is a helper routine that allocates a new string value +// to store v and returns a pointer to it. +func String(v string) *string { + return &v +} + +// EnumName is a helper function to simplify printing protocol buffer enums +// by name. Given an enum map and a value, it returns a useful string. +func EnumName(m map[int32]string, v int32) string { + s, ok := m[v] + if ok { + return s + } + return strconv.Itoa(int(v)) +} + +// UnmarshalJSONEnum is a helper function to simplify recovering enum int values +// from their JSON-encoded representation. Given a map from the enum's symbolic +// names to its int values, and a byte buffer containing the JSON-encoded +// value, it returns an int32 that can be cast to the enum type by the caller. +// +// The function can deal with both JSON representations, numeric and symbolic. +func UnmarshalJSONEnum(m map[string]int32, data []byte, enumName string) (int32, error) { + if data[0] == '"' { + // New style: enums are strings. + var repr string + if err := json.Unmarshal(data, &repr); err != nil { + return -1, err + } + val, ok := m[repr] + if !ok { + return 0, fmt.Errorf("unrecognized enum %s value %q", enumName, repr) + } + return val, nil + } + // Old style: enums are ints. + var val int32 + if err := json.Unmarshal(data, &val); err != nil { + return 0, fmt.Errorf("cannot unmarshal %#q into enum %s", data, enumName) + } + return val, nil +} + +// DebugPrint dumps the encoded data in b in a debugging format with a header +// including the string s. Used in testing but made available for general debugging. +func (p *Buffer) DebugPrint(s string, b []byte) { + var u uint64 + + obuf := p.buf + sindex := p.index + p.buf = b + p.index = 0 + depth := 0 + + fmt.Printf("\n--- %s ---\n", s) + +out: + for { + for i := 0; i < depth; i++ { + fmt.Print(" ") + } + + index := p.index + if index == len(p.buf) { + break + } + + op, err := p.DecodeVarint() + if err != nil { + fmt.Printf("%3d: fetching op err %v\n", index, err) + break out + } + tag := op >> 3 + wire := op & 7 + + switch wire { + default: + fmt.Printf("%3d: t=%3d unknown wire=%d\n", + index, tag, wire) + break out + + case WireBytes: + var r []byte + + r, err = p.DecodeRawBytes(false) + if err != nil { + break out + } + fmt.Printf("%3d: t=%3d bytes [%d]", index, tag, len(r)) + if len(r) <= 6 { + for i := 0; i < len(r); i++ { + fmt.Printf(" %.2x", r[i]) + } + } else { + for i := 0; i < 3; i++ { + fmt.Printf(" %.2x", r[i]) + } + fmt.Printf(" ..") + for i := len(r) - 3; i < len(r); i++ { + fmt.Printf(" %.2x", r[i]) + } + } + fmt.Printf("\n") + + case WireFixed32: + u, err = p.DecodeFixed32() + if err != nil { + fmt.Printf("%3d: t=%3d fix32 err %v\n", index, tag, err) + break out + } + fmt.Printf("%3d: t=%3d fix32 %d\n", index, tag, u) + + case WireFixed64: + u, err = p.DecodeFixed64() + if err != nil { + fmt.Printf("%3d: t=%3d fix64 err %v\n", index, tag, err) + break out + } + fmt.Printf("%3d: t=%3d fix64 %d\n", index, tag, u) + + case WireVarint: + u, err = p.DecodeVarint() + if err != nil { + fmt.Printf("%3d: t=%3d varint err %v\n", index, tag, err) + break out + } + fmt.Printf("%3d: t=%3d varint %d\n", index, tag, u) + + case WireStartGroup: + fmt.Printf("%3d: t=%3d start\n", index, tag) + depth++ + + case WireEndGroup: + depth-- + fmt.Printf("%3d: t=%3d end\n", index, tag) + } + } + + if depth != 0 { + fmt.Printf("%3d: start-end not balanced %d\n", p.index, depth) + } + fmt.Printf("\n") + + p.buf = obuf + p.index = sindex +} + +// SetDefaults sets unset protocol buffer fields to their default values. +// It only modifies fields that are both unset and have defined defaults. +// It recursively sets default values in any non-nil sub-messages. +func SetDefaults(pb Message) { + setDefaults(reflect.ValueOf(pb), true, false) +} + +// v is a struct. +func setDefaults(v reflect.Value, recur, zeros bool) { + if v.Kind() == reflect.Ptr { + v = v.Elem() + } + + defaultMu.RLock() + dm, ok := defaults[v.Type()] + defaultMu.RUnlock() + if !ok { + dm = buildDefaultMessage(v.Type()) + defaultMu.Lock() + defaults[v.Type()] = dm + defaultMu.Unlock() + } + + for _, sf := range dm.scalars { + f := v.Field(sf.index) + if !f.IsNil() { + // field already set + continue + } + dv := sf.value + if dv == nil && !zeros { + // no explicit default, and don't want to set zeros + continue + } + fptr := f.Addr().Interface() // **T + // TODO: Consider batching the allocations we do here. + switch sf.kind { + case reflect.Bool: + b := new(bool) + if dv != nil { + *b = dv.(bool) + } + *(fptr.(**bool)) = b + case reflect.Float32: + f := new(float32) + if dv != nil { + *f = dv.(float32) + } + *(fptr.(**float32)) = f + case reflect.Float64: + f := new(float64) + if dv != nil { + *f = dv.(float64) + } + *(fptr.(**float64)) = f + case reflect.Int32: + // might be an enum + if ft := f.Type(); ft != int32PtrType { + // enum + f.Set(reflect.New(ft.Elem())) + if dv != nil { + f.Elem().SetInt(int64(dv.(int32))) + } + } else { + // int32 field + i := new(int32) + if dv != nil { + *i = dv.(int32) + } + *(fptr.(**int32)) = i + } + case reflect.Int64: + i := new(int64) + if dv != nil { + *i = dv.(int64) + } + *(fptr.(**int64)) = i + case reflect.String: + s := new(string) + if dv != nil { + *s = dv.(string) + } + *(fptr.(**string)) = s + case reflect.Uint8: + // exceptional case: []byte + var b []byte + if dv != nil { + db := dv.([]byte) + b = make([]byte, len(db)) + copy(b, db) + } else { + b = []byte{} + } + *(fptr.(*[]byte)) = b + case reflect.Uint32: + u := new(uint32) + if dv != nil { + *u = dv.(uint32) + } + *(fptr.(**uint32)) = u + case reflect.Uint64: + u := new(uint64) + if dv != nil { + *u = dv.(uint64) + } + *(fptr.(**uint64)) = u + default: + log.Printf("proto: can't set default for field %v (sf.kind=%v)", f, sf.kind) + } + } + + for _, ni := range dm.nested { + f := v.Field(ni) + // f is *T or T or []*T or []T + switch f.Kind() { + case reflect.Struct: + setDefaults(f, recur, zeros) + + case reflect.Ptr: + if f.IsNil() { + continue + } + setDefaults(f, recur, zeros) + + case reflect.Slice: + for i := 0; i < f.Len(); i++ { + e := f.Index(i) + if e.Kind() == reflect.Ptr && e.IsNil() { + continue + } + setDefaults(e, recur, zeros) + } + + case reflect.Map: + for _, k := range f.MapKeys() { + e := f.MapIndex(k) + if e.IsNil() { + continue + } + setDefaults(e, recur, zeros) + } + } + } +} + +var ( + // defaults maps a protocol buffer struct type to a slice of the fields, + // with its scalar fields set to their proto-declared non-zero default values. + defaultMu sync.RWMutex + defaults = make(map[reflect.Type]defaultMessage) + + int32PtrType = reflect.TypeOf((*int32)(nil)) +) + +// defaultMessage represents information about the default values of a message. +type defaultMessage struct { + scalars []scalarField + nested []int // struct field index of nested messages +} + +type scalarField struct { + index int // struct field index + kind reflect.Kind // element type (the T in *T or []T) + value interface{} // the proto-declared default value, or nil +} + +// t is a struct type. +func buildDefaultMessage(t reflect.Type) (dm defaultMessage) { + sprop := GetProperties(t) + for _, prop := range sprop.Prop { + fi, ok := sprop.decoderTags.get(prop.Tag) + if !ok { + // XXX_unrecognized + continue + } + ft := t.Field(fi).Type + + sf, nested, err := fieldDefault(ft, prop) + switch { + case err != nil: + log.Print(err) + case nested: + dm.nested = append(dm.nested, fi) + case sf != nil: + sf.index = fi + dm.scalars = append(dm.scalars, *sf) + } + } + + return dm +} + +// fieldDefault returns the scalarField for field type ft. +// sf will be nil if the field can not have a default. +// nestedMessage will be true if this is a nested message. +// Note that sf.index is not set on return. +func fieldDefault(ft reflect.Type, prop *Properties) (sf *scalarField, nestedMessage bool, err error) { + var canHaveDefault bool + switch ft.Kind() { + case reflect.Struct: + nestedMessage = true // non-nullable + + case reflect.Ptr: + if ft.Elem().Kind() == reflect.Struct { + nestedMessage = true + } else { + canHaveDefault = true // proto2 scalar field + } + + case reflect.Slice: + switch ft.Elem().Kind() { + case reflect.Ptr, reflect.Struct: + nestedMessage = true // repeated message + case reflect.Uint8: + canHaveDefault = true // bytes field + } + + case reflect.Map: + if ft.Elem().Kind() == reflect.Ptr { + nestedMessage = true // map with message values + } + } + + if !canHaveDefault { + if nestedMessage { + return nil, true, nil + } + return nil, false, nil + } + + // We now know that ft is a pointer or slice. + sf = &scalarField{kind: ft.Elem().Kind()} + + // scalar fields without defaults + if !prop.HasDefault { + return sf, false, nil + } + + // a scalar field: either *T or []byte + switch ft.Elem().Kind() { + case reflect.Bool: + x, err := strconv.ParseBool(prop.Default) + if err != nil { + return nil, false, fmt.Errorf("proto: bad default bool %q: %v", prop.Default, err) + } + sf.value = x + case reflect.Float32: + x, err := strconv.ParseFloat(prop.Default, 32) + if err != nil { + return nil, false, fmt.Errorf("proto: bad default float32 %q: %v", prop.Default, err) + } + sf.value = float32(x) + case reflect.Float64: + x, err := strconv.ParseFloat(prop.Default, 64) + if err != nil { + return nil, false, fmt.Errorf("proto: bad default float64 %q: %v", prop.Default, err) + } + sf.value = x + case reflect.Int32: + x, err := strconv.ParseInt(prop.Default, 10, 32) + if err != nil { + return nil, false, fmt.Errorf("proto: bad default int32 %q: %v", prop.Default, err) + } + sf.value = int32(x) + case reflect.Int64: + x, err := strconv.ParseInt(prop.Default, 10, 64) + if err != nil { + return nil, false, fmt.Errorf("proto: bad default int64 %q: %v", prop.Default, err) + } + sf.value = x + case reflect.String: + sf.value = prop.Default + case reflect.Uint8: + // []byte (not *uint8) + sf.value = []byte(prop.Default) + case reflect.Uint32: + x, err := strconv.ParseUint(prop.Default, 10, 32) + if err != nil { + return nil, false, fmt.Errorf("proto: bad default uint32 %q: %v", prop.Default, err) + } + sf.value = uint32(x) + case reflect.Uint64: + x, err := strconv.ParseUint(prop.Default, 10, 64) + if err != nil { + return nil, false, fmt.Errorf("proto: bad default uint64 %q: %v", prop.Default, err) + } + sf.value = x + default: + return nil, false, fmt.Errorf("proto: unhandled def kind %v", ft.Elem().Kind()) + } + + return sf, false, nil +} + +// mapKeys returns a sort.Interface to be used for sorting the map keys. +// Map fields may have key types of non-float scalars, strings and enums. +func mapKeys(vs []reflect.Value) sort.Interface { + s := mapKeySorter{vs: vs} + + // Type specialization per https://developers.google.com/protocol-buffers/docs/proto#maps. + if len(vs) == 0 { + return s + } + switch vs[0].Kind() { + case reflect.Int32, reflect.Int64: + s.less = func(a, b reflect.Value) bool { return a.Int() < b.Int() } + case reflect.Uint32, reflect.Uint64: + s.less = func(a, b reflect.Value) bool { return a.Uint() < b.Uint() } + case reflect.Bool: + s.less = func(a, b reflect.Value) bool { return !a.Bool() && b.Bool() } // false < true + case reflect.String: + s.less = func(a, b reflect.Value) bool { return a.String() < b.String() } + default: + panic(fmt.Sprintf("unsupported map key type: %v", vs[0].Kind())) + } + + return s +} + +type mapKeySorter struct { + vs []reflect.Value + less func(a, b reflect.Value) bool +} + +func (s mapKeySorter) Len() int { return len(s.vs) } +func (s mapKeySorter) Swap(i, j int) { s.vs[i], s.vs[j] = s.vs[j], s.vs[i] } +func (s mapKeySorter) Less(i, j int) bool { + return s.less(s.vs[i], s.vs[j]) +} + +// isProto3Zero reports whether v is a zero proto3 value. +func isProto3Zero(v reflect.Value) bool { + switch v.Kind() { + case reflect.Bool: + return !v.Bool() + case reflect.Int32, reflect.Int64: + return v.Int() == 0 + case reflect.Uint32, reflect.Uint64: + return v.Uint() == 0 + case reflect.Float32, reflect.Float64: + return v.Float() == 0 + case reflect.String: + return v.String() == "" + } + return false +} + +// ProtoPackageIsVersion2 is referenced from generated protocol buffer files +// to assert that that code is compatible with this version of the proto package. +const GoGoProtoPackageIsVersion2 = true + +// ProtoPackageIsVersion1 is referenced from generated protocol buffer files +// to assert that that code is compatible with this version of the proto package. +const GoGoProtoPackageIsVersion1 = true + +// InternalMessageInfo is a type used internally by generated .pb.go files. +// This type is not intended to be used by non-generated code. +// This type is not subject to any compatibility guarantee. +type InternalMessageInfo struct { + marshal *marshalInfo + unmarshal *unmarshalInfo + merge *mergeInfo + discard *discardInfo +} diff --git a/vendor/github.com/gogo/protobuf/proto/lib_gogo.go b/vendor/github.com/gogo/protobuf/proto/lib_gogo.go new file mode 100644 index 0000000..b3aa391 --- /dev/null +++ b/vendor/github.com/gogo/protobuf/proto/lib_gogo.go @@ -0,0 +1,50 @@ +// Protocol Buffers for Go with Gadgets +// +// Copyright (c) 2013, The GoGo Authors. All rights reserved. +// http://github.com/gogo/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. +// +// 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 + +import ( + "encoding/json" + "strconv" +) + +type Sizer interface { + Size() int +} + +type ProtoSizer interface { + ProtoSize() int +} + +func MarshalJSONEnum(m map[int32]string, value int32) ([]byte, error) { + s, ok := m[value] + if !ok { + s = strconv.Itoa(int(value)) + } + return json.Marshal(s) +} diff --git a/vendor/github.com/gogo/protobuf/proto/message_set.go b/vendor/github.com/gogo/protobuf/proto/message_set.go new file mode 100644 index 0000000..3b6ca41 --- /dev/null +++ b/vendor/github.com/gogo/protobuf/proto/message_set.go @@ -0,0 +1,314 @@ +// 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 + +/* + * Support for message sets. + */ + +import ( + "bytes" + "encoding/json" + "errors" + "fmt" + "reflect" + "sort" + "sync" +) + +// errNoMessageTypeID occurs when a protocol buffer does not have a message type ID. +// A message type ID is required for storing a protocol buffer in a message set. +var errNoMessageTypeID = errors.New("proto does not have a message type ID") + +// The first two types (_MessageSet_Item and messageSet) +// model what the protocol compiler produces for the following protocol message: +// message MessageSet { +// repeated group Item = 1 { +// required int32 type_id = 2; +// required string message = 3; +// }; +// } +// That is the MessageSet wire format. We can't use a proto to generate these +// because that would introduce a circular dependency between it and this package. + +type _MessageSet_Item struct { + TypeId *int32 `protobuf:"varint,2,req,name=type_id"` + Message []byte `protobuf:"bytes,3,req,name=message"` +} + +type messageSet struct { + Item []*_MessageSet_Item `protobuf:"group,1,rep"` + XXX_unrecognized []byte + // TODO: caching? +} + +// Make sure messageSet is a Message. +var _ Message = (*messageSet)(nil) + +// messageTypeIder is an interface satisfied by a protocol buffer type +// that may be stored in a MessageSet. +type messageTypeIder interface { + MessageTypeId() int32 +} + +func (ms *messageSet) find(pb Message) *_MessageSet_Item { + mti, ok := pb.(messageTypeIder) + if !ok { + return nil + } + id := mti.MessageTypeId() + for _, item := range ms.Item { + if *item.TypeId == id { + return item + } + } + return nil +} + +func (ms *messageSet) Has(pb Message) bool { + return ms.find(pb) != nil +} + +func (ms *messageSet) Unmarshal(pb Message) error { + if item := ms.find(pb); item != nil { + return Unmarshal(item.Message, pb) + } + if _, ok := pb.(messageTypeIder); !ok { + return errNoMessageTypeID + } + return nil // TODO: return error instead? +} + +func (ms *messageSet) Marshal(pb Message) error { + msg, err := Marshal(pb) + if err != nil { + return err + } + if item := ms.find(pb); item != nil { + // reuse existing item + item.Message = msg + return nil + } + + mti, ok := pb.(messageTypeIder) + if !ok { + return errNoMessageTypeID + } + + mtid := mti.MessageTypeId() + ms.Item = append(ms.Item, &_MessageSet_Item{ + TypeId: &mtid, + Message: msg, + }) + return nil +} + +func (ms *messageSet) Reset() { *ms = messageSet{} } +func (ms *messageSet) String() string { return CompactTextString(ms) } +func (*messageSet) ProtoMessage() {} + +// Support for the message_set_wire_format message option. + +func skipVarint(buf []byte) []byte { + i := 0 + for ; buf[i]&0x80 != 0; i++ { + } + return buf[i+1:] +} + +// MarshalMessageSet encodes the extension map represented by m in the message set wire format. +// It is called by generated Marshal methods on protocol buffer messages with the message_set_wire_format option. +func MarshalMessageSet(exts interface{}) ([]byte, error) { + return marshalMessageSet(exts, false) +} + +// marshaMessageSet implements above function, with the opt to turn on / off deterministic during Marshal. +func marshalMessageSet(exts interface{}, deterministic bool) ([]byte, error) { + switch exts := exts.(type) { + case *XXX_InternalExtensions: + var u marshalInfo + siz := u.sizeMessageSet(exts) + b := make([]byte, 0, siz) + return u.appendMessageSet(b, exts, deterministic) + + case map[int32]Extension: + // This is an old-style extension map. + // Wrap it in a new-style XXX_InternalExtensions. + ie := XXX_InternalExtensions{ + p: &struct { + mu sync.Mutex + extensionMap map[int32]Extension + }{ + extensionMap: exts, + }, + } + + var u marshalInfo + siz := u.sizeMessageSet(&ie) + b := make([]byte, 0, siz) + return u.appendMessageSet(b, &ie, deterministic) + + default: + return nil, errors.New("proto: not an extension map") + } +} + +// UnmarshalMessageSet decodes the extension map encoded in buf in the message set wire format. +// It is called by Unmarshal methods on protocol buffer messages with the message_set_wire_format option. +func UnmarshalMessageSet(buf []byte, exts interface{}) error { + var m map[int32]Extension + switch exts := exts.(type) { + case *XXX_InternalExtensions: + m = exts.extensionsWrite() + case map[int32]Extension: + m = exts + default: + return errors.New("proto: not an extension map") + } + + ms := new(messageSet) + if err := Unmarshal(buf, ms); err != nil { + return err + } + for _, item := range ms.Item { + id := *item.TypeId + msg := item.Message + + // Restore wire type and field number varint, plus length varint. + // Be careful to preserve duplicate items. + b := EncodeVarint(uint64(id)<<3 | WireBytes) + if ext, ok := m[id]; ok { + // Existing data; rip off the tag and length varint + // so we join the new data correctly. + // We can assume that ext.enc is set because we are unmarshaling. + o := ext.enc[len(b):] // skip wire type and field number + _, n := DecodeVarint(o) // calculate length of length varint + o = o[n:] // skip length varint + msg = append(o, msg...) // join old data and new data + } + b = append(b, EncodeVarint(uint64(len(msg)))...) + b = append(b, msg...) + + m[id] = Extension{enc: b} + } + return nil +} + +// MarshalMessageSetJSON encodes the extension map represented by m in JSON format. +// It is called by generated MarshalJSON methods on protocol buffer messages with the message_set_wire_format option. +func MarshalMessageSetJSON(exts interface{}) ([]byte, error) { + var m map[int32]Extension + switch exts := exts.(type) { + case *XXX_InternalExtensions: + var mu sync.Locker + m, mu = exts.extensionsRead() + if m != nil { + // Keep the extensions map locked until we're done marshaling to prevent + // races between marshaling and unmarshaling the lazily-{en,de}coded + // values. + mu.Lock() + defer mu.Unlock() + } + case map[int32]Extension: + m = exts + default: + return nil, errors.New("proto: not an extension map") + } + var b bytes.Buffer + b.WriteByte('{') + + // Process the map in key order for deterministic output. + ids := make([]int32, 0, len(m)) + for id := range m { + ids = append(ids, id) + } + sort.Sort(int32Slice(ids)) // int32Slice defined in text.go + + for i, id := range ids { + ext := m[id] + msd, ok := messageSetMap[id] + if !ok { + // Unknown type; we can't render it, so skip it. + continue + } + + if i > 0 && b.Len() > 1 { + b.WriteByte(',') + } + + fmt.Fprintf(&b, `"[%s]":`, msd.name) + + x := ext.value + if x == nil { + x = reflect.New(msd.t.Elem()).Interface() + if err := Unmarshal(ext.enc, x.(Message)); err != nil { + return nil, err + } + } + d, err := json.Marshal(x) + if err != nil { + return nil, err + } + b.Write(d) + } + b.WriteByte('}') + return b.Bytes(), nil +} + +// UnmarshalMessageSetJSON decodes the extension map encoded in buf in JSON format. +// It is called by generated UnmarshalJSON methods on protocol buffer messages with the message_set_wire_format option. +func UnmarshalMessageSetJSON(buf []byte, exts interface{}) error { + // Common-case fast path. + if len(buf) == 0 || bytes.Equal(buf, []byte("{}")) { + return nil + } + + // This is fairly tricky, and it's not clear that it is needed. + return errors.New("TODO: UnmarshalMessageSetJSON not yet implemented") +} + +// A global registry of types that can be used in a MessageSet. + +var messageSetMap = make(map[int32]messageSetDesc) + +type messageSetDesc struct { + t reflect.Type // pointer to struct + name string +} + +// RegisterMessageSetType is called from the generated code. +func RegisterMessageSetType(m Message, fieldNum int32, name string) { + messageSetMap[fieldNum] = messageSetDesc{ + t: reflect.TypeOf(m), + name: name, + } +} diff --git a/vendor/github.com/gogo/protobuf/proto/pointer_reflect.go b/vendor/github.com/gogo/protobuf/proto/pointer_reflect.go new file mode 100644 index 0000000..b6cad90 --- /dev/null +++ b/vendor/github.com/gogo/protobuf/proto/pointer_reflect.go @@ -0,0 +1,357 @@ +// Go support for Protocol Buffers - Google's data interchange format +// +// Copyright 2012 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. + +// +build purego appengine js + +// This file contains an implementation of proto field accesses using package reflect. +// It is slower than the code in pointer_unsafe.go but it avoids package unsafe and can +// be used on App Engine. + +package proto + +import ( + "reflect" + "sync" +) + +const unsafeAllowed = false + +// A field identifies a field in a struct, accessible from a pointer. +// In this implementation, a field is identified by the sequence of field indices +// passed to reflect's FieldByIndex. +type field []int + +// toField returns a field equivalent to the given reflect field. +func toField(f *reflect.StructField) field { + return f.Index +} + +// invalidField is an invalid field identifier. +var invalidField = field(nil) + +// zeroField is a noop when calling pointer.offset. +var zeroField = field([]int{}) + +// IsValid reports whether the field identifier is valid. +func (f field) IsValid() bool { return f != nil } + +// The pointer type is for the table-driven decoder. +// The implementation here uses a reflect.Value of pointer type to +// create a generic pointer. In pointer_unsafe.go we use unsafe +// instead of reflect to implement the same (but faster) interface. +type pointer struct { + v reflect.Value +} + +// toPointer converts an interface of pointer type to a pointer +// that points to the same target. +func toPointer(i *Message) pointer { + return pointer{v: reflect.ValueOf(*i)} +} + +// toAddrPointer converts an interface to a pointer that points to +// the interface data. +func toAddrPointer(i *interface{}, isptr bool) pointer { + v := reflect.ValueOf(*i) + u := reflect.New(v.Type()) + u.Elem().Set(v) + return pointer{v: u} +} + +// valToPointer converts v to a pointer. v must be of pointer type. +func valToPointer(v reflect.Value) pointer { + return pointer{v: v} +} + +// offset converts from a pointer to a structure to a pointer to +// one of its fields. +func (p pointer) offset(f field) pointer { + return pointer{v: p.v.Elem().FieldByIndex(f).Addr()} +} + +func (p pointer) isNil() bool { + return p.v.IsNil() +} + +// grow updates the slice s in place to make it one element longer. +// s must be addressable. +// Returns the (addressable) new element. +func grow(s reflect.Value) reflect.Value { + n, m := s.Len(), s.Cap() + if n < m { + s.SetLen(n + 1) + } else { + s.Set(reflect.Append(s, reflect.Zero(s.Type().Elem()))) + } + return s.Index(n) +} + +func (p pointer) toInt64() *int64 { + return p.v.Interface().(*int64) +} +func (p pointer) toInt64Ptr() **int64 { + return p.v.Interface().(**int64) +} +func (p pointer) toInt64Slice() *[]int64 { + return p.v.Interface().(*[]int64) +} + +var int32ptr = reflect.TypeOf((*int32)(nil)) + +func (p pointer) toInt32() *int32 { + return p.v.Convert(int32ptr).Interface().(*int32) +} + +// The toInt32Ptr/Slice methods don't work because of enums. +// Instead, we must use set/get methods for the int32ptr/slice case. +/* + func (p pointer) toInt32Ptr() **int32 { + return p.v.Interface().(**int32) +} + func (p pointer) toInt32Slice() *[]int32 { + return p.v.Interface().(*[]int32) +} +*/ +func (p pointer) getInt32Ptr() *int32 { + if p.v.Type().Elem().Elem() == reflect.TypeOf(int32(0)) { + // raw int32 type + return p.v.Elem().Interface().(*int32) + } + // an enum + return p.v.Elem().Convert(int32PtrType).Interface().(*int32) +} +func (p pointer) setInt32Ptr(v int32) { + // Allocate value in a *int32. Possibly convert that to a *enum. + // Then assign it to a **int32 or **enum. + // Note: we can convert *int32 to *enum, but we can't convert + // **int32 to **enum! + p.v.Elem().Set(reflect.ValueOf(&v).Convert(p.v.Type().Elem())) +} + +// getInt32Slice copies []int32 from p as a new slice. +// This behavior differs from the implementation in pointer_unsafe.go. +func (p pointer) getInt32Slice() []int32 { + if p.v.Type().Elem().Elem() == reflect.TypeOf(int32(0)) { + // raw int32 type + return p.v.Elem().Interface().([]int32) + } + // an enum + // Allocate a []int32, then assign []enum's values into it. + // Note: we can't convert []enum to []int32. + slice := p.v.Elem() + s := make([]int32, slice.Len()) + for i := 0; i < slice.Len(); i++ { + s[i] = int32(slice.Index(i).Int()) + } + return s +} + +// setInt32Slice copies []int32 into p as a new slice. +// This behavior differs from the implementation in pointer_unsafe.go. +func (p pointer) setInt32Slice(v []int32) { + if p.v.Type().Elem().Elem() == reflect.TypeOf(int32(0)) { + // raw int32 type + p.v.Elem().Set(reflect.ValueOf(v)) + return + } + // an enum + // Allocate a []enum, then assign []int32's values into it. + // Note: we can't convert []enum to []int32. + slice := reflect.MakeSlice(p.v.Type().Elem(), len(v), cap(v)) + for i, x := range v { + slice.Index(i).SetInt(int64(x)) + } + p.v.Elem().Set(slice) +} +func (p pointer) appendInt32Slice(v int32) { + grow(p.v.Elem()).SetInt(int64(v)) +} + +func (p pointer) toUint64() *uint64 { + return p.v.Interface().(*uint64) +} +func (p pointer) toUint64Ptr() **uint64 { + return p.v.Interface().(**uint64) +} +func (p pointer) toUint64Slice() *[]uint64 { + return p.v.Interface().(*[]uint64) +} +func (p pointer) toUint32() *uint32 { + return p.v.Interface().(*uint32) +} +func (p pointer) toUint32Ptr() **uint32 { + return p.v.Interface().(**uint32) +} +func (p pointer) toUint32Slice() *[]uint32 { + return p.v.Interface().(*[]uint32) +} +func (p pointer) toBool() *bool { + return p.v.Interface().(*bool) +} +func (p pointer) toBoolPtr() **bool { + return p.v.Interface().(**bool) +} +func (p pointer) toBoolSlice() *[]bool { + return p.v.Interface().(*[]bool) +} +func (p pointer) toFloat64() *float64 { + return p.v.Interface().(*float64) +} +func (p pointer) toFloat64Ptr() **float64 { + return p.v.Interface().(**float64) +} +func (p pointer) toFloat64Slice() *[]float64 { + return p.v.Interface().(*[]float64) +} +func (p pointer) toFloat32() *float32 { + return p.v.Interface().(*float32) +} +func (p pointer) toFloat32Ptr() **float32 { + return p.v.Interface().(**float32) +} +func (p pointer) toFloat32Slice() *[]float32 { + return p.v.Interface().(*[]float32) +} +func (p pointer) toString() *string { + return p.v.Interface().(*string) +} +func (p pointer) toStringPtr() **string { + return p.v.Interface().(**string) +} +func (p pointer) toStringSlice() *[]string { + return p.v.Interface().(*[]string) +} +func (p pointer) toBytes() *[]byte { + return p.v.Interface().(*[]byte) +} +func (p pointer) toBytesSlice() *[][]byte { + return p.v.Interface().(*[][]byte) +} +func (p pointer) toExtensions() *XXX_InternalExtensions { + return p.v.Interface().(*XXX_InternalExtensions) +} +func (p pointer) toOldExtensions() *map[int32]Extension { + return p.v.Interface().(*map[int32]Extension) +} +func (p pointer) getPointer() pointer { + return pointer{v: p.v.Elem()} +} +func (p pointer) setPointer(q pointer) { + p.v.Elem().Set(q.v) +} +func (p pointer) appendPointer(q pointer) { + grow(p.v.Elem()).Set(q.v) +} + +// getPointerSlice copies []*T from p as a new []pointer. +// This behavior differs from the implementation in pointer_unsafe.go. +func (p pointer) getPointerSlice() []pointer { + if p.v.IsNil() { + return nil + } + n := p.v.Elem().Len() + s := make([]pointer, n) + for i := 0; i < n; i++ { + s[i] = pointer{v: p.v.Elem().Index(i)} + } + return s +} + +// setPointerSlice copies []pointer into p as a new []*T. +// This behavior differs from the implementation in pointer_unsafe.go. +func (p pointer) setPointerSlice(v []pointer) { + if v == nil { + p.v.Elem().Set(reflect.New(p.v.Elem().Type()).Elem()) + return + } + s := reflect.MakeSlice(p.v.Elem().Type(), 0, len(v)) + for _, p := range v { + s = reflect.Append(s, p.v) + } + p.v.Elem().Set(s) +} + +// getInterfacePointer returns a pointer that points to the +// interface data of the interface pointed by p. +func (p pointer) getInterfacePointer() pointer { + if p.v.Elem().IsNil() { + return pointer{v: p.v.Elem()} + } + return pointer{v: p.v.Elem().Elem().Elem().Field(0).Addr()} // *interface -> interface -> *struct -> struct +} + +func (p pointer) asPointerTo(t reflect.Type) reflect.Value { + // TODO: check that p.v.Type().Elem() == t? + return p.v +} + +func atomicLoadUnmarshalInfo(p **unmarshalInfo) *unmarshalInfo { + atomicLock.Lock() + defer atomicLock.Unlock() + return *p +} +func atomicStoreUnmarshalInfo(p **unmarshalInfo, v *unmarshalInfo) { + atomicLock.Lock() + defer atomicLock.Unlock() + *p = v +} +func atomicLoadMarshalInfo(p **marshalInfo) *marshalInfo { + atomicLock.Lock() + defer atomicLock.Unlock() + return *p +} +func atomicStoreMarshalInfo(p **marshalInfo, v *marshalInfo) { + atomicLock.Lock() + defer atomicLock.Unlock() + *p = v +} +func atomicLoadMergeInfo(p **mergeInfo) *mergeInfo { + atomicLock.Lock() + defer atomicLock.Unlock() + return *p +} +func atomicStoreMergeInfo(p **mergeInfo, v *mergeInfo) { + atomicLock.Lock() + defer atomicLock.Unlock() + *p = v +} +func atomicLoadDiscardInfo(p **discardInfo) *discardInfo { + atomicLock.Lock() + defer atomicLock.Unlock() + return *p +} +func atomicStoreDiscardInfo(p **discardInfo, v *discardInfo) { + atomicLock.Lock() + defer atomicLock.Unlock() + *p = v +} + +var atomicLock sync.Mutex diff --git a/vendor/github.com/gogo/protobuf/proto/pointer_reflect_gogo.go b/vendor/github.com/gogo/protobuf/proto/pointer_reflect_gogo.go new file mode 100644 index 0000000..7ffd3c2 --- /dev/null +++ b/vendor/github.com/gogo/protobuf/proto/pointer_reflect_gogo.go @@ -0,0 +1,59 @@ +// Protocol Buffers for Go with Gadgets +// +// Copyright (c) 2018, The GoGo Authors. All rights reserved. +// http://github.com/gogo/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. +// +// 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. + +// +build purego appengine js + +// This file contains an implementation of proto field accesses using package reflect. +// It is slower than the code in pointer_unsafe.go but it avoids package unsafe and can +// be used on App Engine. + +package proto + +import ( + "reflect" +) + +// TODO: untested, so probably incorrect. + +func (p pointer) getRef() pointer { + return pointer{v: p.v.Addr()} +} + +func (p pointer) appendRef(v pointer, typ reflect.Type) { + slice := p.getSlice(typ) + elem := v.asPointerTo(typ).Elem() + newSlice := reflect.Append(slice, elem) + slice.Set(newSlice) +} + +func (p pointer) getSlice(typ reflect.Type) reflect.Value { + sliceTyp := reflect.SliceOf(typ) + slice := p.asPointerTo(sliceTyp) + slice = slice.Elem() + return slice +} diff --git a/vendor/github.com/gogo/protobuf/proto/pointer_unsafe.go b/vendor/github.com/gogo/protobuf/proto/pointer_unsafe.go new file mode 100644 index 0000000..d55a335 --- /dev/null +++ b/vendor/github.com/gogo/protobuf/proto/pointer_unsafe.go @@ -0,0 +1,308 @@ +// Go support for Protocol Buffers - Google's data interchange format +// +// Copyright 2012 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. + +// +build !purego,!appengine,!js + +// This file contains the implementation of the proto field accesses using package unsafe. + +package proto + +import ( + "reflect" + "sync/atomic" + "unsafe" +) + +const unsafeAllowed = true + +// A field identifies a field in a struct, accessible from a pointer. +// In this implementation, a field is identified by its byte offset from the start of the struct. +type field uintptr + +// toField returns a field equivalent to the given reflect field. +func toField(f *reflect.StructField) field { + return field(f.Offset) +} + +// invalidField is an invalid field identifier. +const invalidField = ^field(0) + +// zeroField is a noop when calling pointer.offset. +const zeroField = field(0) + +// IsValid reports whether the field identifier is valid. +func (f field) IsValid() bool { + return f != invalidField +} + +// The pointer type below is for the new table-driven encoder/decoder. +// The implementation here uses unsafe.Pointer to create a generic pointer. +// In pointer_reflect.go we use reflect instead of unsafe to implement +// the same (but slower) interface. +type pointer struct { + p unsafe.Pointer +} + +// size of pointer +var ptrSize = unsafe.Sizeof(uintptr(0)) + +// toPointer converts an interface of pointer type to a pointer +// that points to the same target. +func toPointer(i *Message) pointer { + // Super-tricky - read pointer out of data word of interface value. + // Saves ~25ns over the equivalent: + // return valToPointer(reflect.ValueOf(*i)) + return pointer{p: (*[2]unsafe.Pointer)(unsafe.Pointer(i))[1]} +} + +// toAddrPointer converts an interface to a pointer that points to +// the interface data. +func toAddrPointer(i *interface{}, isptr bool) pointer { + // Super-tricky - read or get the address of data word of interface value. + if isptr { + // The interface is of pointer type, thus it is a direct interface. + // The data word is the pointer data itself. We take its address. + return pointer{p: unsafe.Pointer(uintptr(unsafe.Pointer(i)) + ptrSize)} + } + // The interface is not of pointer type. The data word is the pointer + // to the data. + return pointer{p: (*[2]unsafe.Pointer)(unsafe.Pointer(i))[1]} +} + +// valToPointer converts v to a pointer. v must be of pointer type. +func valToPointer(v reflect.Value) pointer { + return pointer{p: unsafe.Pointer(v.Pointer())} +} + +// offset converts from a pointer to a structure to a pointer to +// one of its fields. +func (p pointer) offset(f field) pointer { + // For safety, we should panic if !f.IsValid, however calling panic causes + // this to no longer be inlineable, which is a serious performance cost. + /* + if !f.IsValid() { + panic("invalid field") + } + */ + return pointer{p: unsafe.Pointer(uintptr(p.p) + uintptr(f))} +} + +func (p pointer) isNil() bool { + return p.p == nil +} + +func (p pointer) toInt64() *int64 { + return (*int64)(p.p) +} +func (p pointer) toInt64Ptr() **int64 { + return (**int64)(p.p) +} +func (p pointer) toInt64Slice() *[]int64 { + return (*[]int64)(p.p) +} +func (p pointer) toInt32() *int32 { + return (*int32)(p.p) +} + +// See pointer_reflect.go for why toInt32Ptr/Slice doesn't exist. +/* + func (p pointer) toInt32Ptr() **int32 { + return (**int32)(p.p) + } + func (p pointer) toInt32Slice() *[]int32 { + return (*[]int32)(p.p) + } +*/ +func (p pointer) getInt32Ptr() *int32 { + return *(**int32)(p.p) +} +func (p pointer) setInt32Ptr(v int32) { + *(**int32)(p.p) = &v +} + +// getInt32Slice loads a []int32 from p. +// The value returned is aliased with the original slice. +// This behavior differs from the implementation in pointer_reflect.go. +func (p pointer) getInt32Slice() []int32 { + return *(*[]int32)(p.p) +} + +// setInt32Slice stores a []int32 to p. +// The value set is aliased with the input slice. +// This behavior differs from the implementation in pointer_reflect.go. +func (p pointer) setInt32Slice(v []int32) { + *(*[]int32)(p.p) = v +} + +// TODO: Can we get rid of appendInt32Slice and use setInt32Slice instead? +func (p pointer) appendInt32Slice(v int32) { + s := (*[]int32)(p.p) + *s = append(*s, v) +} + +func (p pointer) toUint64() *uint64 { + return (*uint64)(p.p) +} +func (p pointer) toUint64Ptr() **uint64 { + return (**uint64)(p.p) +} +func (p pointer) toUint64Slice() *[]uint64 { + return (*[]uint64)(p.p) +} +func (p pointer) toUint32() *uint32 { + return (*uint32)(p.p) +} +func (p pointer) toUint32Ptr() **uint32 { + return (**uint32)(p.p) +} +func (p pointer) toUint32Slice() *[]uint32 { + return (*[]uint32)(p.p) +} +func (p pointer) toBool() *bool { + return (*bool)(p.p) +} +func (p pointer) toBoolPtr() **bool { + return (**bool)(p.p) +} +func (p pointer) toBoolSlice() *[]bool { + return (*[]bool)(p.p) +} +func (p pointer) toFloat64() *float64 { + return (*float64)(p.p) +} +func (p pointer) toFloat64Ptr() **float64 { + return (**float64)(p.p) +} +func (p pointer) toFloat64Slice() *[]float64 { + return (*[]float64)(p.p) +} +func (p pointer) toFloat32() *float32 { + return (*float32)(p.p) +} +func (p pointer) toFloat32Ptr() **float32 { + return (**float32)(p.p) +} +func (p pointer) toFloat32Slice() *[]float32 { + return (*[]float32)(p.p) +} +func (p pointer) toString() *string { + return (*string)(p.p) +} +func (p pointer) toStringPtr() **string { + return (**string)(p.p) +} +func (p pointer) toStringSlice() *[]string { + return (*[]string)(p.p) +} +func (p pointer) toBytes() *[]byte { + return (*[]byte)(p.p) +} +func (p pointer) toBytesSlice() *[][]byte { + return (*[][]byte)(p.p) +} +func (p pointer) toExtensions() *XXX_InternalExtensions { + return (*XXX_InternalExtensions)(p.p) +} +func (p pointer) toOldExtensions() *map[int32]Extension { + return (*map[int32]Extension)(p.p) +} + +// getPointerSlice loads []*T from p as a []pointer. +// The value returned is aliased with the original slice. +// This behavior differs from the implementation in pointer_reflect.go. +func (p pointer) getPointerSlice() []pointer { + // Super-tricky - p should point to a []*T where T is a + // message type. We load it as []pointer. + return *(*[]pointer)(p.p) +} + +// setPointerSlice stores []pointer into p as a []*T. +// The value set is aliased with the input slice. +// This behavior differs from the implementation in pointer_reflect.go. +func (p pointer) setPointerSlice(v []pointer) { + // Super-tricky - p should point to a []*T where T is a + // message type. We store it as []pointer. + *(*[]pointer)(p.p) = v +} + +// getPointer loads the pointer at p and returns it. +func (p pointer) getPointer() pointer { + return pointer{p: *(*unsafe.Pointer)(p.p)} +} + +// setPointer stores the pointer q at p. +func (p pointer) setPointer(q pointer) { + *(*unsafe.Pointer)(p.p) = q.p +} + +// append q to the slice pointed to by p. +func (p pointer) appendPointer(q pointer) { + s := (*[]unsafe.Pointer)(p.p) + *s = append(*s, q.p) +} + +// getInterfacePointer returns a pointer that points to the +// interface data of the interface pointed by p. +func (p pointer) getInterfacePointer() pointer { + // Super-tricky - read pointer out of data word of interface value. + return pointer{p: (*(*[2]unsafe.Pointer)(p.p))[1]} +} + +// asPointerTo returns a reflect.Value that is a pointer to an +// object of type t stored at p. +func (p pointer) asPointerTo(t reflect.Type) reflect.Value { + return reflect.NewAt(t, p.p) +} + +func atomicLoadUnmarshalInfo(p **unmarshalInfo) *unmarshalInfo { + return (*unmarshalInfo)(atomic.LoadPointer((*unsafe.Pointer)(unsafe.Pointer(p)))) +} +func atomicStoreUnmarshalInfo(p **unmarshalInfo, v *unmarshalInfo) { + atomic.StorePointer((*unsafe.Pointer)(unsafe.Pointer(p)), unsafe.Pointer(v)) +} +func atomicLoadMarshalInfo(p **marshalInfo) *marshalInfo { + return (*marshalInfo)(atomic.LoadPointer((*unsafe.Pointer)(unsafe.Pointer(p)))) +} +func atomicStoreMarshalInfo(p **marshalInfo, v *marshalInfo) { + atomic.StorePointer((*unsafe.Pointer)(unsafe.Pointer(p)), unsafe.Pointer(v)) +} +func atomicLoadMergeInfo(p **mergeInfo) *mergeInfo { + return (*mergeInfo)(atomic.LoadPointer((*unsafe.Pointer)(unsafe.Pointer(p)))) +} +func atomicStoreMergeInfo(p **mergeInfo, v *mergeInfo) { + atomic.StorePointer((*unsafe.Pointer)(unsafe.Pointer(p)), unsafe.Pointer(v)) +} +func atomicLoadDiscardInfo(p **discardInfo) *discardInfo { + return (*discardInfo)(atomic.LoadPointer((*unsafe.Pointer)(unsafe.Pointer(p)))) +} +func atomicStoreDiscardInfo(p **discardInfo, v *discardInfo) { + atomic.StorePointer((*unsafe.Pointer)(unsafe.Pointer(p)), unsafe.Pointer(v)) +} diff --git a/vendor/github.com/gogo/protobuf/proto/pointer_unsafe_gogo.go b/vendor/github.com/gogo/protobuf/proto/pointer_unsafe_gogo.go new file mode 100644 index 0000000..aca8eed --- /dev/null +++ b/vendor/github.com/gogo/protobuf/proto/pointer_unsafe_gogo.go @@ -0,0 +1,56 @@ +// Protocol Buffers for Go with Gadgets +// +// Copyright (c) 2018, The GoGo Authors. All rights reserved. +// http://github.com/gogo/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. +// +// 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. + +// +build !purego,!appengine,!js + +// This file contains the implementation of the proto field accesses using package unsafe. + +package proto + +import ( + "reflect" + "unsafe" +) + +func (p pointer) getRef() pointer { + return pointer{p: (unsafe.Pointer)(&p.p)} +} + +func (p pointer) appendRef(v pointer, typ reflect.Type) { + slice := p.getSlice(typ) + elem := v.asPointerTo(typ).Elem() + newSlice := reflect.Append(slice, elem) + slice.Set(newSlice) +} + +func (p pointer) getSlice(typ reflect.Type) reflect.Value { + sliceTyp := reflect.SliceOf(typ) + slice := p.asPointerTo(sliceTyp) + slice = slice.Elem() + return slice +} diff --git a/vendor/github.com/gogo/protobuf/proto/properties.go b/vendor/github.com/gogo/protobuf/proto/properties.go new file mode 100644 index 0000000..7a5e28e --- /dev/null +++ b/vendor/github.com/gogo/protobuf/proto/properties.go @@ -0,0 +1,600 @@ +// Protocol Buffers for Go with Gadgets +// +// Copyright (c) 2013, The GoGo Authors. All rights reserved. +// http://github.com/gogo/protobuf +// +// 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 ( + "fmt" + "log" + "os" + "reflect" + "sort" + "strconv" + "strings" + "sync" +) + +const debug bool = false + +// Constants that identify the encoding of a value on the wire. +const ( + WireVarint = 0 + WireFixed64 = 1 + WireBytes = 2 + WireStartGroup = 3 + WireEndGroup = 4 + WireFixed32 = 5 +) + +// tagMap is an optimization over map[int]int for typical protocol buffer +// use-cases. Encoded protocol buffers are often in tag order with small tag +// numbers. +type tagMap struct { + fastTags []int + slowTags map[int]int +} + +// tagMapFastLimit is the upper bound on the tag number that will be stored in +// the tagMap slice rather than its map. +const tagMapFastLimit = 1024 + +func (p *tagMap) get(t int) (int, bool) { + if t > 0 && t < tagMapFastLimit { + if t >= len(p.fastTags) { + return 0, false + } + fi := p.fastTags[t] + return fi, fi >= 0 + } + fi, ok := p.slowTags[t] + return fi, ok +} + +func (p *tagMap) put(t int, fi int) { + if t > 0 && t < tagMapFastLimit { + for len(p.fastTags) < t+1 { + p.fastTags = append(p.fastTags, -1) + } + p.fastTags[t] = fi + return + } + if p.slowTags == nil { + p.slowTags = make(map[int]int) + } + p.slowTags[t] = fi +} + +// StructProperties represents properties for all the fields of a struct. +// decoderTags and decoderOrigNames should only be used by the decoder. +type StructProperties struct { + Prop []*Properties // properties for each field + reqCount int // required count + decoderTags tagMap // map from proto tag to struct field number + decoderOrigNames map[string]int // map from original name to struct field number + order []int // list of struct field numbers in tag order + + // OneofTypes contains information about the oneof fields in this message. + // It is keyed by the original name of a field. + OneofTypes map[string]*OneofProperties +} + +// OneofProperties represents information about a specific field in a oneof. +type OneofProperties struct { + Type reflect.Type // pointer to generated struct type for this oneof field + Field int // struct field number of the containing oneof in the message + Prop *Properties +} + +// Implement the sorting interface so we can sort the fields in tag order, as recommended by the spec. +// See encode.go, (*Buffer).enc_struct. + +func (sp *StructProperties) Len() int { return len(sp.order) } +func (sp *StructProperties) Less(i, j int) bool { + return sp.Prop[sp.order[i]].Tag < sp.Prop[sp.order[j]].Tag +} +func (sp *StructProperties) Swap(i, j int) { sp.order[i], sp.order[j] = sp.order[j], sp.order[i] } + +// Properties represents the protocol-specific behavior of a single struct field. +type Properties struct { + Name string // name of the field, for error messages + OrigName string // original name before protocol compiler (always set) + JSONName string // name to use for JSON; determined by protoc + Wire string + WireType int + Tag int + Required bool + Optional bool + Repeated bool + Packed bool // relevant for repeated primitives only + Enum string // set for enum types only + proto3 bool // whether this is known to be a proto3 field; set for []byte only + oneof bool // whether this is a oneof field + + Default string // default value + HasDefault bool // whether an explicit default was provided + CustomType string + CastType string + StdTime bool + StdDuration bool + + stype reflect.Type // set for struct types only + ctype reflect.Type // set for custom types only + sprop *StructProperties // set for struct types only + + mtype reflect.Type // set for map types only + mkeyprop *Properties // set for map types only + mvalprop *Properties // set for map types only +} + +// String formats the properties in the protobuf struct field tag style. +func (p *Properties) String() string { + s := p.Wire + s += "," + s += strconv.Itoa(p.Tag) + if p.Required { + s += ",req" + } + if p.Optional { + s += ",opt" + } + if p.Repeated { + s += ",rep" + } + if p.Packed { + s += ",packed" + } + s += ",name=" + p.OrigName + if p.JSONName != p.OrigName { + s += ",json=" + p.JSONName + } + if p.proto3 { + s += ",proto3" + } + if p.oneof { + s += ",oneof" + } + if len(p.Enum) > 0 { + s += ",enum=" + p.Enum + } + if p.HasDefault { + s += ",def=" + p.Default + } + return s +} + +// Parse populates p by parsing a string in the protobuf struct field tag style. +func (p *Properties) Parse(s string) { + // "bytes,49,opt,name=foo,def=hello!" + fields := strings.Split(s, ",") // breaks def=, but handled below. + if len(fields) < 2 { + fmt.Fprintf(os.Stderr, "proto: tag has too few fields: %q\n", s) + return + } + + p.Wire = fields[0] + switch p.Wire { + case "varint": + p.WireType = WireVarint + case "fixed32": + p.WireType = WireFixed32 + case "fixed64": + p.WireType = WireFixed64 + case "zigzag32": + p.WireType = WireVarint + case "zigzag64": + p.WireType = WireVarint + case "bytes", "group": + p.WireType = WireBytes + // no numeric converter for non-numeric types + default: + fmt.Fprintf(os.Stderr, "proto: tag has unknown wire type: %q\n", s) + return + } + + var err error + p.Tag, err = strconv.Atoi(fields[1]) + if err != nil { + return + } + +outer: + for i := 2; i < len(fields); i++ { + f := fields[i] + switch { + case f == "req": + p.Required = true + case f == "opt": + p.Optional = true + case f == "rep": + p.Repeated = true + case f == "packed": + p.Packed = true + case strings.HasPrefix(f, "name="): + p.OrigName = f[5:] + case strings.HasPrefix(f, "json="): + p.JSONName = f[5:] + case strings.HasPrefix(f, "enum="): + p.Enum = f[5:] + case f == "proto3": + p.proto3 = true + case f == "oneof": + p.oneof = true + case strings.HasPrefix(f, "def="): + p.HasDefault = true + p.Default = f[4:] // rest of string + if i+1 < len(fields) { + // Commas aren't escaped, and def is always last. + p.Default += "," + strings.Join(fields[i+1:], ",") + break outer + } + case strings.HasPrefix(f, "embedded="): + p.OrigName = strings.Split(f, "=")[1] + case strings.HasPrefix(f, "customtype="): + p.CustomType = strings.Split(f, "=")[1] + case strings.HasPrefix(f, "casttype="): + p.CastType = strings.Split(f, "=")[1] + case f == "stdtime": + p.StdTime = true + case f == "stdduration": + p.StdDuration = true + } + } +} + +var protoMessageType = reflect.TypeOf((*Message)(nil)).Elem() + +// setFieldProps initializes the field properties for submessages and maps. +func (p *Properties) setFieldProps(typ reflect.Type, f *reflect.StructField, lockGetProp bool) { + isMap := typ.Kind() == reflect.Map + if len(p.CustomType) > 0 && !isMap { + p.ctype = typ + p.setTag(lockGetProp) + return + } + if p.StdTime && !isMap { + p.setTag(lockGetProp) + return + } + if p.StdDuration && !isMap { + p.setTag(lockGetProp) + return + } + switch t1 := typ; t1.Kind() { + case reflect.Struct: + p.stype = typ + case reflect.Ptr: + if t1.Elem().Kind() == reflect.Struct { + p.stype = t1.Elem() + } + case reflect.Slice: + switch t2 := t1.Elem(); t2.Kind() { + case reflect.Ptr: + switch t3 := t2.Elem(); t3.Kind() { + case reflect.Struct: + p.stype = t3 + } + case reflect.Struct: + p.stype = t2 + } + + case reflect.Map: + + p.mtype = t1 + p.mkeyprop = &Properties{} + p.mkeyprop.init(reflect.PtrTo(p.mtype.Key()), "Key", f.Tag.Get("protobuf_key"), nil, lockGetProp) + p.mvalprop = &Properties{} + vtype := p.mtype.Elem() + if vtype.Kind() != reflect.Ptr && vtype.Kind() != reflect.Slice { + // The value type is not a message (*T) or bytes ([]byte), + // so we need encoders for the pointer to this type. + vtype = reflect.PtrTo(vtype) + } + + p.mvalprop.CustomType = p.CustomType + p.mvalprop.StdDuration = p.StdDuration + p.mvalprop.StdTime = p.StdTime + p.mvalprop.init(vtype, "Value", f.Tag.Get("protobuf_val"), nil, lockGetProp) + } + p.setTag(lockGetProp) +} + +func (p *Properties) setTag(lockGetProp bool) { + if p.stype != nil { + if lockGetProp { + p.sprop = GetProperties(p.stype) + } else { + p.sprop = getPropertiesLocked(p.stype) + } + } +} + +var ( + marshalerType = reflect.TypeOf((*Marshaler)(nil)).Elem() +) + +// Init populates the properties from a protocol buffer struct tag. +func (p *Properties) Init(typ reflect.Type, name, tag string, f *reflect.StructField) { + p.init(typ, name, tag, f, true) +} + +func (p *Properties) init(typ reflect.Type, name, tag string, f *reflect.StructField, lockGetProp bool) { + // "bytes,49,opt,def=hello!" + p.Name = name + p.OrigName = name + if tag == "" { + return + } + p.Parse(tag) + p.setFieldProps(typ, f, lockGetProp) +} + +var ( + propertiesMu sync.RWMutex + propertiesMap = make(map[reflect.Type]*StructProperties) +) + +// GetProperties returns the list of properties for the type represented by t. +// t must represent a generated struct type of a protocol message. +func GetProperties(t reflect.Type) *StructProperties { + if t.Kind() != reflect.Struct { + panic("proto: type must have kind struct") + } + + // Most calls to GetProperties in a long-running program will be + // retrieving details for types we have seen before. + propertiesMu.RLock() + sprop, ok := propertiesMap[t] + propertiesMu.RUnlock() + if ok { + if collectStats { + stats.Chit++ + } + return sprop + } + + propertiesMu.Lock() + sprop = getPropertiesLocked(t) + propertiesMu.Unlock() + return sprop +} + +// getPropertiesLocked requires that propertiesMu is held. +func getPropertiesLocked(t reflect.Type) *StructProperties { + if prop, ok := propertiesMap[t]; ok { + if collectStats { + stats.Chit++ + } + return prop + } + if collectStats { + stats.Cmiss++ + } + + prop := new(StructProperties) + // in case of recursive protos, fill this in now. + propertiesMap[t] = prop + + // build properties + prop.Prop = make([]*Properties, t.NumField()) + prop.order = make([]int, t.NumField()) + + isOneofMessage := false + for i := 0; i < t.NumField(); i++ { + f := t.Field(i) + p := new(Properties) + name := f.Name + p.init(f.Type, name, f.Tag.Get("protobuf"), &f, false) + + oneof := f.Tag.Get("protobuf_oneof") // special case + if oneof != "" { + isOneofMessage = true + // Oneof fields don't use the traditional protobuf tag. + p.OrigName = oneof + } + prop.Prop[i] = p + prop.order[i] = i + if debug { + print(i, " ", f.Name, " ", t.String(), " ") + if p.Tag > 0 { + print(p.String()) + } + print("\n") + } + } + + // Re-order prop.order. + sort.Sort(prop) + + type oneofMessage interface { + XXX_OneofFuncs() (func(Message, *Buffer) error, func(Message, int, int, *Buffer) (bool, error), func(Message) int, []interface{}) + } + if om, ok := reflect.Zero(reflect.PtrTo(t)).Interface().(oneofMessage); isOneofMessage && ok { + var oots []interface{} + _, _, _, oots = om.XXX_OneofFuncs() + + // Interpret oneof metadata. + prop.OneofTypes = make(map[string]*OneofProperties) + for _, oot := range oots { + oop := &OneofProperties{ + Type: reflect.ValueOf(oot).Type(), // *T + Prop: new(Properties), + } + sft := oop.Type.Elem().Field(0) + oop.Prop.Name = sft.Name + oop.Prop.Parse(sft.Tag.Get("protobuf")) + // There will be exactly one interface field that + // this new value is assignable to. + for i := 0; i < t.NumField(); i++ { + f := t.Field(i) + if f.Type.Kind() != reflect.Interface { + continue + } + if !oop.Type.AssignableTo(f.Type) { + continue + } + oop.Field = i + break + } + prop.OneofTypes[oop.Prop.OrigName] = oop + } + } + + // build required counts + // build tags + reqCount := 0 + prop.decoderOrigNames = make(map[string]int) + for i, p := range prop.Prop { + if strings.HasPrefix(p.Name, "XXX_") { + // Internal fields should not appear in tags/origNames maps. + // They are handled specially when encoding and decoding. + continue + } + if p.Required { + reqCount++ + } + prop.decoderTags.put(p.Tag, i) + prop.decoderOrigNames[p.OrigName] = i + } + prop.reqCount = reqCount + + return prop +} + +// A global registry of enum types. +// The generated code will register the generated maps by calling RegisterEnum. + +var enumValueMaps = make(map[string]map[string]int32) +var enumStringMaps = make(map[string]map[int32]string) + +// RegisterEnum is called from the generated code to install the enum descriptor +// maps into the global table to aid parsing text format protocol buffers. +func RegisterEnum(typeName string, unusedNameMap map[int32]string, valueMap map[string]int32) { + if _, ok := enumValueMaps[typeName]; ok { + panic("proto: duplicate enum registered: " + typeName) + } + enumValueMaps[typeName] = valueMap + if _, ok := enumStringMaps[typeName]; ok { + panic("proto: duplicate enum registered: " + typeName) + } + enumStringMaps[typeName] = unusedNameMap +} + +// EnumValueMap returns the mapping from names to integers of the +// enum type enumType, or a nil if not found. +func EnumValueMap(enumType string) map[string]int32 { + return enumValueMaps[enumType] +} + +// A registry of all linked message types. +// The string is a fully-qualified proto name ("pkg.Message"). +var ( + protoTypedNils = make(map[string]Message) // a map from proto names to typed nil pointers + protoMapTypes = make(map[string]reflect.Type) // a map from proto names to map types + revProtoTypes = make(map[reflect.Type]string) +) + +// RegisterType is called from generated code and maps from the fully qualified +// proto name to the type (pointer to struct) of the protocol buffer. +func RegisterType(x Message, name string) { + if _, ok := protoTypedNils[name]; ok { + // TODO: Some day, make this a panic. + log.Printf("proto: duplicate proto type registered: %s", name) + return + } + t := reflect.TypeOf(x) + if v := reflect.ValueOf(x); v.Kind() == reflect.Ptr && v.Pointer() == 0 { + // Generated code always calls RegisterType with nil x. + // This check is just for extra safety. + protoTypedNils[name] = x + } else { + protoTypedNils[name] = reflect.Zero(t).Interface().(Message) + } + revProtoTypes[t] = name +} + +// RegisterMapType is called from generated code and maps from the fully qualified +// proto name to the native map type of the proto map definition. +func RegisterMapType(x interface{}, name string) { + if reflect.TypeOf(x).Kind() != reflect.Map { + panic(fmt.Sprintf("RegisterMapType(%T, %q); want map", x, name)) + } + if _, ok := protoMapTypes[name]; ok { + log.Printf("proto: duplicate proto type registered: %s", name) + return + } + t := reflect.TypeOf(x) + protoMapTypes[name] = t + revProtoTypes[t] = name +} + +// MessageName returns the fully-qualified proto name for the given message type. +func MessageName(x Message) string { + type xname interface { + XXX_MessageName() string + } + if m, ok := x.(xname); ok { + return m.XXX_MessageName() + } + return revProtoTypes[reflect.TypeOf(x)] +} + +// MessageType returns the message type (pointer to struct) for a named message. +// The type is not guaranteed to implement proto.Message if the name refers to a +// map entry. +func MessageType(name string) reflect.Type { + if t, ok := protoTypedNils[name]; ok { + return reflect.TypeOf(t) + } + return protoMapTypes[name] +} + +// A registry of all linked proto files. +var ( + protoFiles = make(map[string][]byte) // file name => fileDescriptor +) + +// RegisterFile is called from generated code and maps from the +// full file name of a .proto file to its compressed FileDescriptorProto. +func RegisterFile(filename string, fileDescriptor []byte) { + protoFiles[filename] = fileDescriptor +} + +// FileDescriptor returns the compressed FileDescriptorProto for a .proto file. +func FileDescriptor(filename string) []byte { return protoFiles[filename] } diff --git a/vendor/github.com/gogo/protobuf/proto/properties_gogo.go b/vendor/github.com/gogo/protobuf/proto/properties_gogo.go new file mode 100644 index 0000000..40ea3dd --- /dev/null +++ b/vendor/github.com/gogo/protobuf/proto/properties_gogo.go @@ -0,0 +1,36 @@ +// Protocol Buffers for Go with Gadgets +// +// Copyright (c) 2018, The GoGo Authors. All rights reserved. +// http://github.com/gogo/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. +// +// 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 + +import ( + "reflect" +) + +var sizerType = reflect.TypeOf((*Sizer)(nil)).Elem() +var protosizerType = reflect.TypeOf((*ProtoSizer)(nil)).Elem() diff --git a/vendor/github.com/gogo/protobuf/proto/skip_gogo.go b/vendor/github.com/gogo/protobuf/proto/skip_gogo.go new file mode 100644 index 0000000..5a5fd93 --- /dev/null +++ b/vendor/github.com/gogo/protobuf/proto/skip_gogo.go @@ -0,0 +1,119 @@ +// Protocol Buffers for Go with Gadgets +// +// Copyright (c) 2013, The GoGo Authors. All rights reserved. +// http://github.com/gogo/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. +// +// 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 + +import ( + "fmt" + "io" +) + +func Skip(data []byte) (n int, err error) { + l := len(data) + index := 0 + for index < l { + var wire uint64 + for shift := uint(0); ; shift += 7 { + if index >= l { + return 0, io.ErrUnexpectedEOF + } + b := data[index] + index++ + wire |= (uint64(b) & 0x7F) << shift + if b < 0x80 { + break + } + } + wireType := int(wire & 0x7) + switch wireType { + case 0: + for { + if index >= l { + return 0, io.ErrUnexpectedEOF + } + index++ + if data[index-1] < 0x80 { + break + } + } + return index, nil + case 1: + index += 8 + return index, nil + case 2: + var length int + for shift := uint(0); ; shift += 7 { + if index >= l { + return 0, io.ErrUnexpectedEOF + } + b := data[index] + index++ + length |= (int(b) & 0x7F) << shift + if b < 0x80 { + break + } + } + index += length + return index, nil + case 3: + for { + var innerWire uint64 + var start int = index + for shift := uint(0); ; shift += 7 { + if index >= l { + return 0, io.ErrUnexpectedEOF + } + b := data[index] + index++ + innerWire |= (uint64(b) & 0x7F) << shift + if b < 0x80 { + break + } + } + innerWireType := int(innerWire & 0x7) + if innerWireType == 4 { + break + } + next, err := Skip(data[start:]) + if err != nil { + return 0, err + } + index = start + next + } + return index, nil + case 4: + return index, nil + case 5: + index += 4 + return index, nil + default: + return 0, fmt.Errorf("proto: illegal wireType %d", wireType) + } + } + panic("unreachable") +} diff --git a/vendor/github.com/gogo/protobuf/proto/table_marshal.go b/vendor/github.com/gogo/protobuf/proto/table_marshal.go new file mode 100644 index 0000000..3d233d1 --- /dev/null +++ b/vendor/github.com/gogo/protobuf/proto/table_marshal.go @@ -0,0 +1,2799 @@ +// Go support for Protocol Buffers - Google's data interchange format +// +// Copyright 2016 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 + +import ( + "errors" + "fmt" + "math" + "reflect" + "sort" + "strconv" + "strings" + "sync" + "sync/atomic" + "unicode/utf8" +) + +// a sizer takes a pointer to a field and the size of its tag, computes the size of +// the encoded data. +type sizer func(pointer, int) int + +// a marshaler takes a byte slice, a pointer to a field, and its tag (in wire format), +// marshals the field to the end of the slice, returns the slice and error (if any). +type marshaler func(b []byte, ptr pointer, wiretag uint64, deterministic bool) ([]byte, error) + +// marshalInfo is the information used for marshaling a message. +type marshalInfo struct { + typ reflect.Type + fields []*marshalFieldInfo + unrecognized field // offset of XXX_unrecognized + extensions field // offset of XXX_InternalExtensions + v1extensions field // offset of XXX_extensions + sizecache field // offset of XXX_sizecache + initialized int32 // 0 -- only typ is set, 1 -- fully initialized + messageset bool // uses message set wire format + hasmarshaler bool // has custom marshaler + sync.RWMutex // protect extElems map, also for initialization + extElems map[int32]*marshalElemInfo // info of extension elements + + hassizer bool // has custom sizer + hasprotosizer bool // has custom protosizer + + bytesExtensions field // offset of XXX_extensions where the field type is []byte +} + +// marshalFieldInfo is the information used for marshaling a field of a message. +type marshalFieldInfo struct { + field field + wiretag uint64 // tag in wire format + tagsize int // size of tag in wire format + sizer sizer + marshaler marshaler + isPointer bool + required bool // field is required + name string // name of the field, for error reporting + oneofElems map[reflect.Type]*marshalElemInfo // info of oneof elements +} + +// marshalElemInfo is the information used for marshaling an extension or oneof element. +type marshalElemInfo struct { + wiretag uint64 // tag in wire format + tagsize int // size of tag in wire format + sizer sizer + marshaler marshaler + isptr bool // elem is pointer typed, thus interface of this type is a direct interface (extension only) +} + +var ( + marshalInfoMap = map[reflect.Type]*marshalInfo{} + marshalInfoLock sync.Mutex +) + +// getMarshalInfo returns the information to marshal a given type of message. +// The info it returns may not necessarily initialized. +// t is the type of the message (NOT the pointer to it). +func getMarshalInfo(t reflect.Type) *marshalInfo { + marshalInfoLock.Lock() + u, ok := marshalInfoMap[t] + if !ok { + u = &marshalInfo{typ: t} + marshalInfoMap[t] = u + } + marshalInfoLock.Unlock() + return u +} + +// Size is the entry point from generated code, +// and should be ONLY called by generated code. +// It computes the size of encoded data of msg. +// a is a pointer to a place to store cached marshal info. +func (a *InternalMessageInfo) Size(msg Message) int { + u := getMessageMarshalInfo(msg, a) + ptr := toPointer(&msg) + if ptr.isNil() { + // We get here if msg is a typed nil ((*SomeMessage)(nil)), + // so it satisfies the interface, and msg == nil wouldn't + // catch it. We don't want crash in this case. + return 0 + } + return u.size(ptr) +} + +// Marshal is the entry point from generated code, +// and should be ONLY called by generated code. +// It marshals msg to the end of b. +// a is a pointer to a place to store cached marshal info. +func (a *InternalMessageInfo) Marshal(b []byte, msg Message, deterministic bool) ([]byte, error) { + u := getMessageMarshalInfo(msg, a) + ptr := toPointer(&msg) + if ptr.isNil() { + // We get here if msg is a typed nil ((*SomeMessage)(nil)), + // so it satisfies the interface, and msg == nil wouldn't + // catch it. We don't want crash in this case. + return b, ErrNil + } + return u.marshal(b, ptr, deterministic) +} + +func getMessageMarshalInfo(msg interface{}, a *InternalMessageInfo) *marshalInfo { + // u := a.marshal, but atomically. + // We use an atomic here to ensure memory consistency. + u := atomicLoadMarshalInfo(&a.marshal) + if u == nil { + // Get marshal information from type of message. + t := reflect.ValueOf(msg).Type() + if t.Kind() != reflect.Ptr { + panic(fmt.Sprintf("cannot handle non-pointer message type %v", t)) + } + u = getMarshalInfo(t.Elem()) + // Store it in the cache for later users. + // a.marshal = u, but atomically. + atomicStoreMarshalInfo(&a.marshal, u) + } + return u +} + +// size is the main function to compute the size of the encoded data of a message. +// ptr is the pointer to the message. +func (u *marshalInfo) size(ptr pointer) int { + if atomic.LoadInt32(&u.initialized) == 0 { + u.computeMarshalInfo() + } + + // If the message can marshal itself, let it do it, for compatibility. + // NOTE: This is not efficient. + if u.hasmarshaler { + // Uses the message's Size method if available + if u.hassizer { + s := ptr.asPointerTo(u.typ).Interface().(Sizer) + return s.Size() + } + // Uses the message's ProtoSize method if available + if u.hasprotosizer { + s := ptr.asPointerTo(u.typ).Interface().(ProtoSizer) + return s.ProtoSize() + } + + m := ptr.asPointerTo(u.typ).Interface().(Marshaler) + b, _ := m.Marshal() + return len(b) + } + + n := 0 + for _, f := range u.fields { + if f.isPointer && ptr.offset(f.field).getPointer().isNil() { + // nil pointer always marshals to nothing + continue + } + n += f.sizer(ptr.offset(f.field), f.tagsize) + } + if u.extensions.IsValid() { + e := ptr.offset(u.extensions).toExtensions() + if u.messageset { + n += u.sizeMessageSet(e) + } else { + n += u.sizeExtensions(e) + } + } + if u.v1extensions.IsValid() { + m := *ptr.offset(u.v1extensions).toOldExtensions() + n += u.sizeV1Extensions(m) + } + if u.bytesExtensions.IsValid() { + s := *ptr.offset(u.bytesExtensions).toBytes() + n += len(s) + } + if u.unrecognized.IsValid() { + s := *ptr.offset(u.unrecognized).toBytes() + n += len(s) + } + + // cache the result for use in marshal + if u.sizecache.IsValid() { + atomic.StoreInt32(ptr.offset(u.sizecache).toInt32(), int32(n)) + } + return n +} + +// cachedsize gets the size from cache. If there is no cache (i.e. message is not generated), +// fall back to compute the size. +func (u *marshalInfo) cachedsize(ptr pointer) int { + if u.sizecache.IsValid() { + return int(atomic.LoadInt32(ptr.offset(u.sizecache).toInt32())) + } + return u.size(ptr) +} + +// marshal is the main function to marshal a message. It takes a byte slice and appends +// the encoded data to the end of the slice, returns the slice and error (if any). +// ptr is the pointer to the message. +// If deterministic is true, map is marshaled in deterministic order. +func (u *marshalInfo) marshal(b []byte, ptr pointer, deterministic bool) ([]byte, error) { + if atomic.LoadInt32(&u.initialized) == 0 { + u.computeMarshalInfo() + } + + // If the message can marshal itself, let it do it, for compatibility. + // NOTE: This is not efficient. + if u.hasmarshaler { + if deterministic { + return nil, errors.New("proto: deterministic not supported by the Marshal method of " + u.typ.String()) + } + m := ptr.asPointerTo(u.typ).Interface().(Marshaler) + b1, err := m.Marshal() + b = append(b, b1...) + return b, err + } + + var err, errreq error + // The old marshaler encodes extensions at beginning. + if u.extensions.IsValid() { + e := ptr.offset(u.extensions).toExtensions() + if u.messageset { + b, err = u.appendMessageSet(b, e, deterministic) + } else { + b, err = u.appendExtensions(b, e, deterministic) + } + if err != nil { + return b, err + } + } + if u.v1extensions.IsValid() { + m := *ptr.offset(u.v1extensions).toOldExtensions() + b, err = u.appendV1Extensions(b, m, deterministic) + if err != nil { + return b, err + } + } + if u.bytesExtensions.IsValid() { + s := *ptr.offset(u.bytesExtensions).toBytes() + b = append(b, s...) + } + for _, f := range u.fields { + if f.required && errreq == nil { + if f.isPointer && ptr.offset(f.field).getPointer().isNil() { + // Required field is not set. + // We record the error but keep going, to give a complete marshaling. + errreq = &RequiredNotSetError{f.name} + continue + } + } + if f.isPointer && ptr.offset(f.field).getPointer().isNil() { + // nil pointer always marshals to nothing + continue + } + b, err = f.marshaler(b, ptr.offset(f.field), f.wiretag, deterministic) + if err != nil { + if err1, ok := err.(*RequiredNotSetError); ok { + // Required field in submessage is not set. + // We record the error but keep going, to give a complete marshaling. + if errreq == nil { + errreq = &RequiredNotSetError{f.name + "." + err1.field} + } + continue + } + if err == errRepeatedHasNil { + err = errors.New("proto: repeated field " + f.name + " has nil element") + } + return b, err + } + } + if u.unrecognized.IsValid() { + s := *ptr.offset(u.unrecognized).toBytes() + b = append(b, s...) + } + return b, errreq +} + +// computeMarshalInfo initializes the marshal info. +func (u *marshalInfo) computeMarshalInfo() { + u.Lock() + defer u.Unlock() + if u.initialized != 0 { // non-atomic read is ok as it is protected by the lock + return + } + + t := u.typ + u.unrecognized = invalidField + u.extensions = invalidField + u.v1extensions = invalidField + u.bytesExtensions = invalidField + u.sizecache = invalidField + isOneofMessage := false + + if reflect.PtrTo(t).Implements(sizerType) { + u.hassizer = true + } + if reflect.PtrTo(t).Implements(protosizerType) { + u.hasprotosizer = true + } + // If the message can marshal itself, let it do it, for compatibility. + // NOTE: This is not efficient. + if reflect.PtrTo(t).Implements(marshalerType) { + u.hasmarshaler = true + atomic.StoreInt32(&u.initialized, 1) + return + } + + n := t.NumField() + + // deal with XXX fields first + for i := 0; i < t.NumField(); i++ { + f := t.Field(i) + if f.Tag.Get("protobuf_oneof") != "" { + isOneofMessage = true + } + if !strings.HasPrefix(f.Name, "XXX_") { + continue + } + switch f.Name { + case "XXX_sizecache": + u.sizecache = toField(&f) + case "XXX_unrecognized": + u.unrecognized = toField(&f) + case "XXX_InternalExtensions": + u.extensions = toField(&f) + u.messageset = f.Tag.Get("protobuf_messageset") == "1" + case "XXX_extensions": + if f.Type.Kind() == reflect.Map { + u.v1extensions = toField(&f) + } else { + u.bytesExtensions = toField(&f) + } + case "XXX_NoUnkeyedLiteral": + // nothing to do + default: + panic("unknown XXX field: " + f.Name) + } + n-- + } + + // get oneof implementers + var oneofImplementers []interface{} + // gogo: isOneofMessage is needed for embedded oneof messages, without a marshaler and unmarshaler + if m, ok := reflect.Zero(reflect.PtrTo(t)).Interface().(oneofMessage); ok && isOneofMessage { + _, _, _, oneofImplementers = m.XXX_OneofFuncs() + } + + // normal fields + fields := make([]marshalFieldInfo, n) // batch allocation + u.fields = make([]*marshalFieldInfo, 0, n) + for i, j := 0, 0; i < t.NumField(); i++ { + f := t.Field(i) + + if strings.HasPrefix(f.Name, "XXX_") { + continue + } + field := &fields[j] + j++ + field.name = f.Name + u.fields = append(u.fields, field) + if f.Tag.Get("protobuf_oneof") != "" { + field.computeOneofFieldInfo(&f, oneofImplementers) + continue + } + if f.Tag.Get("protobuf") == "" { + // field has no tag (not in generated message), ignore it + u.fields = u.fields[:len(u.fields)-1] + j-- + continue + } + field.computeMarshalFieldInfo(&f) + } + + // fields are marshaled in tag order on the wire. + sort.Sort(byTag(u.fields)) + + atomic.StoreInt32(&u.initialized, 1) +} + +// helper for sorting fields by tag +type byTag []*marshalFieldInfo + +func (a byTag) Len() int { return len(a) } +func (a byTag) Swap(i, j int) { a[i], a[j] = a[j], a[i] } +func (a byTag) Less(i, j int) bool { return a[i].wiretag < a[j].wiretag } + +// getExtElemInfo returns the information to marshal an extension element. +// The info it returns is initialized. +func (u *marshalInfo) getExtElemInfo(desc *ExtensionDesc) *marshalElemInfo { + // get from cache first + u.RLock() + e, ok := u.extElems[desc.Field] + u.RUnlock() + if ok { + return e + } + + t := reflect.TypeOf(desc.ExtensionType) // pointer or slice to basic type or struct + tags := strings.Split(desc.Tag, ",") + tag, err := strconv.Atoi(tags[1]) + if err != nil { + panic("tag is not an integer") + } + wt := wiretype(tags[0]) + sizr, marshalr := typeMarshaler(t, tags, false, false) + e = &marshalElemInfo{ + wiretag: uint64(tag)<<3 | wt, + tagsize: SizeVarint(uint64(tag) << 3), + sizer: sizr, + marshaler: marshalr, + isptr: t.Kind() == reflect.Ptr, + } + + // update cache + u.Lock() + if u.extElems == nil { + u.extElems = make(map[int32]*marshalElemInfo) + } + u.extElems[desc.Field] = e + u.Unlock() + return e +} + +// computeMarshalFieldInfo fills up the information to marshal a field. +func (fi *marshalFieldInfo) computeMarshalFieldInfo(f *reflect.StructField) { + // parse protobuf tag of the field. + // tag has format of "bytes,49,opt,name=foo,def=hello!" + tags := strings.Split(f.Tag.Get("protobuf"), ",") + if tags[0] == "" { + return + } + tag, err := strconv.Atoi(tags[1]) + if err != nil { + panic("tag is not an integer") + } + wt := wiretype(tags[0]) + if tags[2] == "req" { + fi.required = true + } + fi.setTag(f, tag, wt) + fi.setMarshaler(f, tags) +} + +func (fi *marshalFieldInfo) computeOneofFieldInfo(f *reflect.StructField, oneofImplementers []interface{}) { + fi.field = toField(f) + fi.wiretag = 1<<31 - 1 // Use a large tag number, make oneofs sorted at the end. This tag will not appear on the wire. + fi.isPointer = true + fi.sizer, fi.marshaler = makeOneOfMarshaler(fi, f) + fi.oneofElems = make(map[reflect.Type]*marshalElemInfo) + + ityp := f.Type // interface type + for _, o := range oneofImplementers { + t := reflect.TypeOf(o) + if !t.Implements(ityp) { + continue + } + sf := t.Elem().Field(0) // oneof implementer is a struct with a single field + tags := strings.Split(sf.Tag.Get("protobuf"), ",") + tag, err := strconv.Atoi(tags[1]) + if err != nil { + panic("tag is not an integer") + } + wt := wiretype(tags[0]) + sizr, marshalr := typeMarshaler(sf.Type, tags, false, true) // oneof should not omit any zero value + fi.oneofElems[t.Elem()] = &marshalElemInfo{ + wiretag: uint64(tag)<<3 | wt, + tagsize: SizeVarint(uint64(tag) << 3), + sizer: sizr, + marshaler: marshalr, + } + } +} + +type oneofMessage interface { + XXX_OneofFuncs() (func(Message, *Buffer) error, func(Message, int, int, *Buffer) (bool, error), func(Message) int, []interface{}) +} + +// wiretype returns the wire encoding of the type. +func wiretype(encoding string) uint64 { + switch encoding { + case "fixed32": + return WireFixed32 + case "fixed64": + return WireFixed64 + case "varint", "zigzag32", "zigzag64": + return WireVarint + case "bytes": + return WireBytes + case "group": + return WireStartGroup + } + panic("unknown wire type " + encoding) +} + +// setTag fills up the tag (in wire format) and its size in the info of a field. +func (fi *marshalFieldInfo) setTag(f *reflect.StructField, tag int, wt uint64) { + fi.field = toField(f) + fi.wiretag = uint64(tag)<<3 | wt + fi.tagsize = SizeVarint(uint64(tag) << 3) +} + +// setMarshaler fills up the sizer and marshaler in the info of a field. +func (fi *marshalFieldInfo) setMarshaler(f *reflect.StructField, tags []string) { + switch f.Type.Kind() { + case reflect.Map: + // map field + fi.isPointer = true + fi.sizer, fi.marshaler = makeMapMarshaler(f) + return + case reflect.Ptr, reflect.Slice: + fi.isPointer = true + } + fi.sizer, fi.marshaler = typeMarshaler(f.Type, tags, true, false) +} + +// typeMarshaler returns the sizer and marshaler of a given field. +// t is the type of the field. +// tags is the generated "protobuf" tag of the field. +// If nozero is true, zero value is not marshaled to the wire. +// If oneof is true, it is a oneof field. +func typeMarshaler(t reflect.Type, tags []string, nozero, oneof bool) (sizer, marshaler) { + encoding := tags[0] + + pointer := false + slice := false + if t.Kind() == reflect.Slice && t.Elem().Kind() != reflect.Uint8 { + slice = true + t = t.Elem() + } + if t.Kind() == reflect.Ptr { + pointer = true + t = t.Elem() + } + + packed := false + proto3 := false + ctype := false + isTime := false + isDuration := false + for i := 2; i < len(tags); i++ { + if tags[i] == "packed" { + packed = true + } + if tags[i] == "proto3" { + proto3 = true + } + if strings.HasPrefix(tags[i], "customtype=") { + ctype = true + } + if tags[i] == "stdtime" { + isTime = true + } + if tags[i] == "stdduration" { + isDuration = true + } + } + if !proto3 && !pointer && !slice { + nozero = false + } + + if ctype { + if reflect.PtrTo(t).Implements(customType) { + if slice { + return makeMessageRefSliceMarshaler(getMarshalInfo(t)) + } + if pointer { + return makeCustomPtrMarshaler(getMarshalInfo(t)) + } + return makeCustomMarshaler(getMarshalInfo(t)) + } else { + panic(fmt.Sprintf("custom type: type: %v, does not implement the proto.custom interface", t)) + } + } + + if isTime { + if pointer { + if slice { + return makeTimePtrSliceMarshaler(getMarshalInfo(t)) + } + return makeTimePtrMarshaler(getMarshalInfo(t)) + } + if slice { + return makeTimeSliceMarshaler(getMarshalInfo(t)) + } + return makeTimeMarshaler(getMarshalInfo(t)) + } + + if isDuration { + if pointer { + if slice { + return makeDurationPtrSliceMarshaler(getMarshalInfo(t)) + } + return makeDurationPtrMarshaler(getMarshalInfo(t)) + } + if slice { + return makeDurationSliceMarshaler(getMarshalInfo(t)) + } + return makeDurationMarshaler(getMarshalInfo(t)) + } + + switch t.Kind() { + case reflect.Bool: + if pointer { + return sizeBoolPtr, appendBoolPtr + } + if slice { + if packed { + return sizeBoolPackedSlice, appendBoolPackedSlice + } + return sizeBoolSlice, appendBoolSlice + } + if nozero { + return sizeBoolValueNoZero, appendBoolValueNoZero + } + return sizeBoolValue, appendBoolValue + case reflect.Uint32: + switch encoding { + case "fixed32": + if pointer { + return sizeFixed32Ptr, appendFixed32Ptr + } + if slice { + if packed { + return sizeFixed32PackedSlice, appendFixed32PackedSlice + } + return sizeFixed32Slice, appendFixed32Slice + } + if nozero { + return sizeFixed32ValueNoZero, appendFixed32ValueNoZero + } + return sizeFixed32Value, appendFixed32Value + case "varint": + if pointer { + return sizeVarint32Ptr, appendVarint32Ptr + } + if slice { + if packed { + return sizeVarint32PackedSlice, appendVarint32PackedSlice + } + return sizeVarint32Slice, appendVarint32Slice + } + if nozero { + return sizeVarint32ValueNoZero, appendVarint32ValueNoZero + } + return sizeVarint32Value, appendVarint32Value + } + case reflect.Int32: + switch encoding { + case "fixed32": + if pointer { + return sizeFixedS32Ptr, appendFixedS32Ptr + } + if slice { + if packed { + return sizeFixedS32PackedSlice, appendFixedS32PackedSlice + } + return sizeFixedS32Slice, appendFixedS32Slice + } + if nozero { + return sizeFixedS32ValueNoZero, appendFixedS32ValueNoZero + } + return sizeFixedS32Value, appendFixedS32Value + case "varint": + if pointer { + return sizeVarintS32Ptr, appendVarintS32Ptr + } + if slice { + if packed { + return sizeVarintS32PackedSlice, appendVarintS32PackedSlice + } + return sizeVarintS32Slice, appendVarintS32Slice + } + if nozero { + return sizeVarintS32ValueNoZero, appendVarintS32ValueNoZero + } + return sizeVarintS32Value, appendVarintS32Value + case "zigzag32": + if pointer { + return sizeZigzag32Ptr, appendZigzag32Ptr + } + if slice { + if packed { + return sizeZigzag32PackedSlice, appendZigzag32PackedSlice + } + return sizeZigzag32Slice, appendZigzag32Slice + } + if nozero { + return sizeZigzag32ValueNoZero, appendZigzag32ValueNoZero + } + return sizeZigzag32Value, appendZigzag32Value + } + case reflect.Uint64: + switch encoding { + case "fixed64": + if pointer { + return sizeFixed64Ptr, appendFixed64Ptr + } + if slice { + if packed { + return sizeFixed64PackedSlice, appendFixed64PackedSlice + } + return sizeFixed64Slice, appendFixed64Slice + } + if nozero { + return sizeFixed64ValueNoZero, appendFixed64ValueNoZero + } + return sizeFixed64Value, appendFixed64Value + case "varint": + if pointer { + return sizeVarint64Ptr, appendVarint64Ptr + } + if slice { + if packed { + return sizeVarint64PackedSlice, appendVarint64PackedSlice + } + return sizeVarint64Slice, appendVarint64Slice + } + if nozero { + return sizeVarint64ValueNoZero, appendVarint64ValueNoZero + } + return sizeVarint64Value, appendVarint64Value + } + case reflect.Int64: + switch encoding { + case "fixed64": + if pointer { + return sizeFixedS64Ptr, appendFixedS64Ptr + } + if slice { + if packed { + return sizeFixedS64PackedSlice, appendFixedS64PackedSlice + } + return sizeFixedS64Slice, appendFixedS64Slice + } + if nozero { + return sizeFixedS64ValueNoZero, appendFixedS64ValueNoZero + } + return sizeFixedS64Value, appendFixedS64Value + case "varint": + if pointer { + return sizeVarintS64Ptr, appendVarintS64Ptr + } + if slice { + if packed { + return sizeVarintS64PackedSlice, appendVarintS64PackedSlice + } + return sizeVarintS64Slice, appendVarintS64Slice + } + if nozero { + return sizeVarintS64ValueNoZero, appendVarintS64ValueNoZero + } + return sizeVarintS64Value, appendVarintS64Value + case "zigzag64": + if pointer { + return sizeZigzag64Ptr, appendZigzag64Ptr + } + if slice { + if packed { + return sizeZigzag64PackedSlice, appendZigzag64PackedSlice + } + return sizeZigzag64Slice, appendZigzag64Slice + } + if nozero { + return sizeZigzag64ValueNoZero, appendZigzag64ValueNoZero + } + return sizeZigzag64Value, appendZigzag64Value + } + case reflect.Float32: + if pointer { + return sizeFloat32Ptr, appendFloat32Ptr + } + if slice { + if packed { + return sizeFloat32PackedSlice, appendFloat32PackedSlice + } + return sizeFloat32Slice, appendFloat32Slice + } + if nozero { + return sizeFloat32ValueNoZero, appendFloat32ValueNoZero + } + return sizeFloat32Value, appendFloat32Value + case reflect.Float64: + if pointer { + return sizeFloat64Ptr, appendFloat64Ptr + } + if slice { + if packed { + return sizeFloat64PackedSlice, appendFloat64PackedSlice + } + return sizeFloat64Slice, appendFloat64Slice + } + if nozero { + return sizeFloat64ValueNoZero, appendFloat64ValueNoZero + } + return sizeFloat64Value, appendFloat64Value + case reflect.String: + if pointer { + return sizeStringPtr, appendStringPtr + } + if slice { + return sizeStringSlice, appendStringSlice + } + if nozero { + return sizeStringValueNoZero, appendStringValueNoZero + } + return sizeStringValue, appendStringValue + case reflect.Slice: + if slice { + return sizeBytesSlice, appendBytesSlice + } + if oneof { + // Oneof bytes field may also have "proto3" tag. + // We want to marshal it as a oneof field. Do this + // check before the proto3 check. + return sizeBytesOneof, appendBytesOneof + } + if proto3 { + return sizeBytes3, appendBytes3 + } + return sizeBytes, appendBytes + case reflect.Struct: + switch encoding { + case "group": + if slice { + return makeGroupSliceMarshaler(getMarshalInfo(t)) + } + return makeGroupMarshaler(getMarshalInfo(t)) + case "bytes": + if pointer { + if slice { + return makeMessageSliceMarshaler(getMarshalInfo(t)) + } + return makeMessageMarshaler(getMarshalInfo(t)) + } else { + if slice { + return makeMessageRefSliceMarshaler(getMarshalInfo(t)) + } + return makeMessageRefMarshaler(getMarshalInfo(t)) + } + } + } + panic(fmt.Sprintf("unknown or mismatched type: type: %v, wire type: %v", t, encoding)) +} + +// Below are functions to size/marshal a specific type of a field. +// They are stored in the field's info, and called by function pointers. +// They have type sizer or marshaler. + +func sizeFixed32Value(_ pointer, tagsize int) int { + return 4 + tagsize +} +func sizeFixed32ValueNoZero(ptr pointer, tagsize int) int { + v := *ptr.toUint32() + if v == 0 { + return 0 + } + return 4 + tagsize +} +func sizeFixed32Ptr(ptr pointer, tagsize int) int { + p := *ptr.toUint32Ptr() + if p == nil { + return 0 + } + return 4 + tagsize +} +func sizeFixed32Slice(ptr pointer, tagsize int) int { + s := *ptr.toUint32Slice() + return (4 + tagsize) * len(s) +} +func sizeFixed32PackedSlice(ptr pointer, tagsize int) int { + s := *ptr.toUint32Slice() + if len(s) == 0 { + return 0 + } + return 4*len(s) + SizeVarint(uint64(4*len(s))) + tagsize +} +func sizeFixedS32Value(_ pointer, tagsize int) int { + return 4 + tagsize +} +func sizeFixedS32ValueNoZero(ptr pointer, tagsize int) int { + v := *ptr.toInt32() + if v == 0 { + return 0 + } + return 4 + tagsize +} +func sizeFixedS32Ptr(ptr pointer, tagsize int) int { + p := ptr.getInt32Ptr() + if p == nil { + return 0 + } + return 4 + tagsize +} +func sizeFixedS32Slice(ptr pointer, tagsize int) int { + s := ptr.getInt32Slice() + return (4 + tagsize) * len(s) +} +func sizeFixedS32PackedSlice(ptr pointer, tagsize int) int { + s := ptr.getInt32Slice() + if len(s) == 0 { + return 0 + } + return 4*len(s) + SizeVarint(uint64(4*len(s))) + tagsize +} +func sizeFloat32Value(_ pointer, tagsize int) int { + return 4 + tagsize +} +func sizeFloat32ValueNoZero(ptr pointer, tagsize int) int { + v := math.Float32bits(*ptr.toFloat32()) + if v == 0 { + return 0 + } + return 4 + tagsize +} +func sizeFloat32Ptr(ptr pointer, tagsize int) int { + p := *ptr.toFloat32Ptr() + if p == nil { + return 0 + } + return 4 + tagsize +} +func sizeFloat32Slice(ptr pointer, tagsize int) int { + s := *ptr.toFloat32Slice() + return (4 + tagsize) * len(s) +} +func sizeFloat32PackedSlice(ptr pointer, tagsize int) int { + s := *ptr.toFloat32Slice() + if len(s) == 0 { + return 0 + } + return 4*len(s) + SizeVarint(uint64(4*len(s))) + tagsize +} +func sizeFixed64Value(_ pointer, tagsize int) int { + return 8 + tagsize +} +func sizeFixed64ValueNoZero(ptr pointer, tagsize int) int { + v := *ptr.toUint64() + if v == 0 { + return 0 + } + return 8 + tagsize +} +func sizeFixed64Ptr(ptr pointer, tagsize int) int { + p := *ptr.toUint64Ptr() + if p == nil { + return 0 + } + return 8 + tagsize +} +func sizeFixed64Slice(ptr pointer, tagsize int) int { + s := *ptr.toUint64Slice() + return (8 + tagsize) * len(s) +} +func sizeFixed64PackedSlice(ptr pointer, tagsize int) int { + s := *ptr.toUint64Slice() + if len(s) == 0 { + return 0 + } + return 8*len(s) + SizeVarint(uint64(8*len(s))) + tagsize +} +func sizeFixedS64Value(_ pointer, tagsize int) int { + return 8 + tagsize +} +func sizeFixedS64ValueNoZero(ptr pointer, tagsize int) int { + v := *ptr.toInt64() + if v == 0 { + return 0 + } + return 8 + tagsize +} +func sizeFixedS64Ptr(ptr pointer, tagsize int) int { + p := *ptr.toInt64Ptr() + if p == nil { + return 0 + } + return 8 + tagsize +} +func sizeFixedS64Slice(ptr pointer, tagsize int) int { + s := *ptr.toInt64Slice() + return (8 + tagsize) * len(s) +} +func sizeFixedS64PackedSlice(ptr pointer, tagsize int) int { + s := *ptr.toInt64Slice() + if len(s) == 0 { + return 0 + } + return 8*len(s) + SizeVarint(uint64(8*len(s))) + tagsize +} +func sizeFloat64Value(_ pointer, tagsize int) int { + return 8 + tagsize +} +func sizeFloat64ValueNoZero(ptr pointer, tagsize int) int { + v := math.Float64bits(*ptr.toFloat64()) + if v == 0 { + return 0 + } + return 8 + tagsize +} +func sizeFloat64Ptr(ptr pointer, tagsize int) int { + p := *ptr.toFloat64Ptr() + if p == nil { + return 0 + } + return 8 + tagsize +} +func sizeFloat64Slice(ptr pointer, tagsize int) int { + s := *ptr.toFloat64Slice() + return (8 + tagsize) * len(s) +} +func sizeFloat64PackedSlice(ptr pointer, tagsize int) int { + s := *ptr.toFloat64Slice() + if len(s) == 0 { + return 0 + } + return 8*len(s) + SizeVarint(uint64(8*len(s))) + tagsize +} +func sizeVarint32Value(ptr pointer, tagsize int) int { + v := *ptr.toUint32() + return SizeVarint(uint64(v)) + tagsize +} +func sizeVarint32ValueNoZero(ptr pointer, tagsize int) int { + v := *ptr.toUint32() + if v == 0 { + return 0 + } + return SizeVarint(uint64(v)) + tagsize +} +func sizeVarint32Ptr(ptr pointer, tagsize int) int { + p := *ptr.toUint32Ptr() + if p == nil { + return 0 + } + return SizeVarint(uint64(*p)) + tagsize +} +func sizeVarint32Slice(ptr pointer, tagsize int) int { + s := *ptr.toUint32Slice() + n := 0 + for _, v := range s { + n += SizeVarint(uint64(v)) + tagsize + } + return n +} +func sizeVarint32PackedSlice(ptr pointer, tagsize int) int { + s := *ptr.toUint32Slice() + if len(s) == 0 { + return 0 + } + n := 0 + for _, v := range s { + n += SizeVarint(uint64(v)) + } + return n + SizeVarint(uint64(n)) + tagsize +} +func sizeVarintS32Value(ptr pointer, tagsize int) int { + v := *ptr.toInt32() + return SizeVarint(uint64(v)) + tagsize +} +func sizeVarintS32ValueNoZero(ptr pointer, tagsize int) int { + v := *ptr.toInt32() + if v == 0 { + return 0 + } + return SizeVarint(uint64(v)) + tagsize +} +func sizeVarintS32Ptr(ptr pointer, tagsize int) int { + p := ptr.getInt32Ptr() + if p == nil { + return 0 + } + return SizeVarint(uint64(*p)) + tagsize +} +func sizeVarintS32Slice(ptr pointer, tagsize int) int { + s := ptr.getInt32Slice() + n := 0 + for _, v := range s { + n += SizeVarint(uint64(v)) + tagsize + } + return n +} +func sizeVarintS32PackedSlice(ptr pointer, tagsize int) int { + s := ptr.getInt32Slice() + if len(s) == 0 { + return 0 + } + n := 0 + for _, v := range s { + n += SizeVarint(uint64(v)) + } + return n + SizeVarint(uint64(n)) + tagsize +} +func sizeVarint64Value(ptr pointer, tagsize int) int { + v := *ptr.toUint64() + return SizeVarint(v) + tagsize +} +func sizeVarint64ValueNoZero(ptr pointer, tagsize int) int { + v := *ptr.toUint64() + if v == 0 { + return 0 + } + return SizeVarint(v) + tagsize +} +func sizeVarint64Ptr(ptr pointer, tagsize int) int { + p := *ptr.toUint64Ptr() + if p == nil { + return 0 + } + return SizeVarint(*p) + tagsize +} +func sizeVarint64Slice(ptr pointer, tagsize int) int { + s := *ptr.toUint64Slice() + n := 0 + for _, v := range s { + n += SizeVarint(v) + tagsize + } + return n +} +func sizeVarint64PackedSlice(ptr pointer, tagsize int) int { + s := *ptr.toUint64Slice() + if len(s) == 0 { + return 0 + } + n := 0 + for _, v := range s { + n += SizeVarint(v) + } + return n + SizeVarint(uint64(n)) + tagsize +} +func sizeVarintS64Value(ptr pointer, tagsize int) int { + v := *ptr.toInt64() + return SizeVarint(uint64(v)) + tagsize +} +func sizeVarintS64ValueNoZero(ptr pointer, tagsize int) int { + v := *ptr.toInt64() + if v == 0 { + return 0 + } + return SizeVarint(uint64(v)) + tagsize +} +func sizeVarintS64Ptr(ptr pointer, tagsize int) int { + p := *ptr.toInt64Ptr() + if p == nil { + return 0 + } + return SizeVarint(uint64(*p)) + tagsize +} +func sizeVarintS64Slice(ptr pointer, tagsize int) int { + s := *ptr.toInt64Slice() + n := 0 + for _, v := range s { + n += SizeVarint(uint64(v)) + tagsize + } + return n +} +func sizeVarintS64PackedSlice(ptr pointer, tagsize int) int { + s := *ptr.toInt64Slice() + if len(s) == 0 { + return 0 + } + n := 0 + for _, v := range s { + n += SizeVarint(uint64(v)) + } + return n + SizeVarint(uint64(n)) + tagsize +} +func sizeZigzag32Value(ptr pointer, tagsize int) int { + v := *ptr.toInt32() + return SizeVarint(uint64((uint32(v)<<1)^uint32((int32(v)>>31)))) + tagsize +} +func sizeZigzag32ValueNoZero(ptr pointer, tagsize int) int { + v := *ptr.toInt32() + if v == 0 { + return 0 + } + return SizeVarint(uint64((uint32(v)<<1)^uint32((int32(v)>>31)))) + tagsize +} +func sizeZigzag32Ptr(ptr pointer, tagsize int) int { + p := ptr.getInt32Ptr() + if p == nil { + return 0 + } + v := *p + return SizeVarint(uint64((uint32(v)<<1)^uint32((int32(v)>>31)))) + tagsize +} +func sizeZigzag32Slice(ptr pointer, tagsize int) int { + s := ptr.getInt32Slice() + n := 0 + for _, v := range s { + n += SizeVarint(uint64((uint32(v)<<1)^uint32((int32(v)>>31)))) + tagsize + } + return n +} +func sizeZigzag32PackedSlice(ptr pointer, tagsize int) int { + s := ptr.getInt32Slice() + if len(s) == 0 { + return 0 + } + n := 0 + for _, v := range s { + n += SizeVarint(uint64((uint32(v) << 1) ^ uint32((int32(v) >> 31)))) + } + return n + SizeVarint(uint64(n)) + tagsize +} +func sizeZigzag64Value(ptr pointer, tagsize int) int { + v := *ptr.toInt64() + return SizeVarint(uint64(v<<1)^uint64((int64(v)>>63))) + tagsize +} +func sizeZigzag64ValueNoZero(ptr pointer, tagsize int) int { + v := *ptr.toInt64() + if v == 0 { + return 0 + } + return SizeVarint(uint64(v<<1)^uint64((int64(v)>>63))) + tagsize +} +func sizeZigzag64Ptr(ptr pointer, tagsize int) int { + p := *ptr.toInt64Ptr() + if p == nil { + return 0 + } + v := *p + return SizeVarint(uint64(v<<1)^uint64((int64(v)>>63))) + tagsize +} +func sizeZigzag64Slice(ptr pointer, tagsize int) int { + s := *ptr.toInt64Slice() + n := 0 + for _, v := range s { + n += SizeVarint(uint64(v<<1)^uint64((int64(v)>>63))) + tagsize + } + return n +} +func sizeZigzag64PackedSlice(ptr pointer, tagsize int) int { + s := *ptr.toInt64Slice() + if len(s) == 0 { + return 0 + } + n := 0 + for _, v := range s { + n += SizeVarint(uint64(v<<1) ^ uint64((int64(v) >> 63))) + } + return n + SizeVarint(uint64(n)) + tagsize +} +func sizeBoolValue(_ pointer, tagsize int) int { + return 1 + tagsize +} +func sizeBoolValueNoZero(ptr pointer, tagsize int) int { + v := *ptr.toBool() + if !v { + return 0 + } + return 1 + tagsize +} +func sizeBoolPtr(ptr pointer, tagsize int) int { + p := *ptr.toBoolPtr() + if p == nil { + return 0 + } + return 1 + tagsize +} +func sizeBoolSlice(ptr pointer, tagsize int) int { + s := *ptr.toBoolSlice() + return (1 + tagsize) * len(s) +} +func sizeBoolPackedSlice(ptr pointer, tagsize int) int { + s := *ptr.toBoolSlice() + if len(s) == 0 { + return 0 + } + return len(s) + SizeVarint(uint64(len(s))) + tagsize +} +func sizeStringValue(ptr pointer, tagsize int) int { + v := *ptr.toString() + return len(v) + SizeVarint(uint64(len(v))) + tagsize +} +func sizeStringValueNoZero(ptr pointer, tagsize int) int { + v := *ptr.toString() + if v == "" { + return 0 + } + return len(v) + SizeVarint(uint64(len(v))) + tagsize +} +func sizeStringPtr(ptr pointer, tagsize int) int { + p := *ptr.toStringPtr() + if p == nil { + return 0 + } + v := *p + return len(v) + SizeVarint(uint64(len(v))) + tagsize +} +func sizeStringSlice(ptr pointer, tagsize int) int { + s := *ptr.toStringSlice() + n := 0 + for _, v := range s { + n += len(v) + SizeVarint(uint64(len(v))) + tagsize + } + return n +} +func sizeBytes(ptr pointer, tagsize int) int { + v := *ptr.toBytes() + if v == nil { + return 0 + } + return len(v) + SizeVarint(uint64(len(v))) + tagsize +} +func sizeBytes3(ptr pointer, tagsize int) int { + v := *ptr.toBytes() + if len(v) == 0 { + return 0 + } + return len(v) + SizeVarint(uint64(len(v))) + tagsize +} +func sizeBytesOneof(ptr pointer, tagsize int) int { + v := *ptr.toBytes() + return len(v) + SizeVarint(uint64(len(v))) + tagsize +} +func sizeBytesSlice(ptr pointer, tagsize int) int { + s := *ptr.toBytesSlice() + n := 0 + for _, v := range s { + n += len(v) + SizeVarint(uint64(len(v))) + tagsize + } + return n +} + +// appendFixed32 appends an encoded fixed32 to b. +func appendFixed32(b []byte, v uint32) []byte { + b = append(b, + byte(v), + byte(v>>8), + byte(v>>16), + byte(v>>24)) + return b +} + +// appendFixed64 appends an encoded fixed64 to b. +func appendFixed64(b []byte, v uint64) []byte { + b = append(b, + byte(v), + byte(v>>8), + byte(v>>16), + byte(v>>24), + byte(v>>32), + byte(v>>40), + byte(v>>48), + byte(v>>56)) + return b +} + +// appendVarint appends an encoded varint to b. +func appendVarint(b []byte, v uint64) []byte { + // TODO: make 1-byte (maybe 2-byte) case inline-able, once we + // have non-leaf inliner. + switch { + case v < 1<<7: + b = append(b, byte(v)) + case v < 1<<14: + b = append(b, + byte(v&0x7f|0x80), + byte(v>>7)) + case v < 1<<21: + b = append(b, + byte(v&0x7f|0x80), + byte((v>>7)&0x7f|0x80), + byte(v>>14)) + case v < 1<<28: + b = append(b, + byte(v&0x7f|0x80), + byte((v>>7)&0x7f|0x80), + byte((v>>14)&0x7f|0x80), + byte(v>>21)) + case v < 1<<35: + b = append(b, + byte(v&0x7f|0x80), + byte((v>>7)&0x7f|0x80), + byte((v>>14)&0x7f|0x80), + byte((v>>21)&0x7f|0x80), + byte(v>>28)) + case v < 1<<42: + b = append(b, + byte(v&0x7f|0x80), + byte((v>>7)&0x7f|0x80), + byte((v>>14)&0x7f|0x80), + byte((v>>21)&0x7f|0x80), + byte((v>>28)&0x7f|0x80), + byte(v>>35)) + case v < 1<<49: + b = append(b, + byte(v&0x7f|0x80), + byte((v>>7)&0x7f|0x80), + byte((v>>14)&0x7f|0x80), + byte((v>>21)&0x7f|0x80), + byte((v>>28)&0x7f|0x80), + byte((v>>35)&0x7f|0x80), + byte(v>>42)) + case v < 1<<56: + b = append(b, + byte(v&0x7f|0x80), + byte((v>>7)&0x7f|0x80), + byte((v>>14)&0x7f|0x80), + byte((v>>21)&0x7f|0x80), + byte((v>>28)&0x7f|0x80), + byte((v>>35)&0x7f|0x80), + byte((v>>42)&0x7f|0x80), + byte(v>>49)) + case v < 1<<63: + b = append(b, + byte(v&0x7f|0x80), + byte((v>>7)&0x7f|0x80), + byte((v>>14)&0x7f|0x80), + byte((v>>21)&0x7f|0x80), + byte((v>>28)&0x7f|0x80), + byte((v>>35)&0x7f|0x80), + byte((v>>42)&0x7f|0x80), + byte((v>>49)&0x7f|0x80), + byte(v>>56)) + default: + b = append(b, + byte(v&0x7f|0x80), + byte((v>>7)&0x7f|0x80), + byte((v>>14)&0x7f|0x80), + byte((v>>21)&0x7f|0x80), + byte((v>>28)&0x7f|0x80), + byte((v>>35)&0x7f|0x80), + byte((v>>42)&0x7f|0x80), + byte((v>>49)&0x7f|0x80), + byte((v>>56)&0x7f|0x80), + 1) + } + return b +} + +func appendFixed32Value(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) { + v := *ptr.toUint32() + b = appendVarint(b, wiretag) + b = appendFixed32(b, v) + return b, nil +} +func appendFixed32ValueNoZero(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) { + v := *ptr.toUint32() + if v == 0 { + return b, nil + } + b = appendVarint(b, wiretag) + b = appendFixed32(b, v) + return b, nil +} +func appendFixed32Ptr(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) { + p := *ptr.toUint32Ptr() + if p == nil { + return b, nil + } + b = appendVarint(b, wiretag) + b = appendFixed32(b, *p) + return b, nil +} +func appendFixed32Slice(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) { + s := *ptr.toUint32Slice() + for _, v := range s { + b = appendVarint(b, wiretag) + b = appendFixed32(b, v) + } + return b, nil +} +func appendFixed32PackedSlice(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) { + s := *ptr.toUint32Slice() + if len(s) == 0 { + return b, nil + } + b = appendVarint(b, wiretag&^7|WireBytes) + b = appendVarint(b, uint64(4*len(s))) + for _, v := range s { + b = appendFixed32(b, v) + } + return b, nil +} +func appendFixedS32Value(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) { + v := *ptr.toInt32() + b = appendVarint(b, wiretag) + b = appendFixed32(b, uint32(v)) + return b, nil +} +func appendFixedS32ValueNoZero(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) { + v := *ptr.toInt32() + if v == 0 { + return b, nil + } + b = appendVarint(b, wiretag) + b = appendFixed32(b, uint32(v)) + return b, nil +} +func appendFixedS32Ptr(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) { + p := ptr.getInt32Ptr() + if p == nil { + return b, nil + } + b = appendVarint(b, wiretag) + b = appendFixed32(b, uint32(*p)) + return b, nil +} +func appendFixedS32Slice(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) { + s := ptr.getInt32Slice() + for _, v := range s { + b = appendVarint(b, wiretag) + b = appendFixed32(b, uint32(v)) + } + return b, nil +} +func appendFixedS32PackedSlice(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) { + s := ptr.getInt32Slice() + if len(s) == 0 { + return b, nil + } + b = appendVarint(b, wiretag&^7|WireBytes) + b = appendVarint(b, uint64(4*len(s))) + for _, v := range s { + b = appendFixed32(b, uint32(v)) + } + return b, nil +} +func appendFloat32Value(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) { + v := math.Float32bits(*ptr.toFloat32()) + b = appendVarint(b, wiretag) + b = appendFixed32(b, v) + return b, nil +} +func appendFloat32ValueNoZero(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) { + v := math.Float32bits(*ptr.toFloat32()) + if v == 0 { + return b, nil + } + b = appendVarint(b, wiretag) + b = appendFixed32(b, v) + return b, nil +} +func appendFloat32Ptr(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) { + p := *ptr.toFloat32Ptr() + if p == nil { + return b, nil + } + b = appendVarint(b, wiretag) + b = appendFixed32(b, math.Float32bits(*p)) + return b, nil +} +func appendFloat32Slice(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) { + s := *ptr.toFloat32Slice() + for _, v := range s { + b = appendVarint(b, wiretag) + b = appendFixed32(b, math.Float32bits(v)) + } + return b, nil +} +func appendFloat32PackedSlice(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) { + s := *ptr.toFloat32Slice() + if len(s) == 0 { + return b, nil + } + b = appendVarint(b, wiretag&^7|WireBytes) + b = appendVarint(b, uint64(4*len(s))) + for _, v := range s { + b = appendFixed32(b, math.Float32bits(v)) + } + return b, nil +} +func appendFixed64Value(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) { + v := *ptr.toUint64() + b = appendVarint(b, wiretag) + b = appendFixed64(b, v) + return b, nil +} +func appendFixed64ValueNoZero(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) { + v := *ptr.toUint64() + if v == 0 { + return b, nil + } + b = appendVarint(b, wiretag) + b = appendFixed64(b, v) + return b, nil +} +func appendFixed64Ptr(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) { + p := *ptr.toUint64Ptr() + if p == nil { + return b, nil + } + b = appendVarint(b, wiretag) + b = appendFixed64(b, *p) + return b, nil +} +func appendFixed64Slice(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) { + s := *ptr.toUint64Slice() + for _, v := range s { + b = appendVarint(b, wiretag) + b = appendFixed64(b, v) + } + return b, nil +} +func appendFixed64PackedSlice(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) { + s := *ptr.toUint64Slice() + if len(s) == 0 { + return b, nil + } + b = appendVarint(b, wiretag&^7|WireBytes) + b = appendVarint(b, uint64(8*len(s))) + for _, v := range s { + b = appendFixed64(b, v) + } + return b, nil +} +func appendFixedS64Value(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) { + v := *ptr.toInt64() + b = appendVarint(b, wiretag) + b = appendFixed64(b, uint64(v)) + return b, nil +} +func appendFixedS64ValueNoZero(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) { + v := *ptr.toInt64() + if v == 0 { + return b, nil + } + b = appendVarint(b, wiretag) + b = appendFixed64(b, uint64(v)) + return b, nil +} +func appendFixedS64Ptr(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) { + p := *ptr.toInt64Ptr() + if p == nil { + return b, nil + } + b = appendVarint(b, wiretag) + b = appendFixed64(b, uint64(*p)) + return b, nil +} +func appendFixedS64Slice(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) { + s := *ptr.toInt64Slice() + for _, v := range s { + b = appendVarint(b, wiretag) + b = appendFixed64(b, uint64(v)) + } + return b, nil +} +func appendFixedS64PackedSlice(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) { + s := *ptr.toInt64Slice() + if len(s) == 0 { + return b, nil + } + b = appendVarint(b, wiretag&^7|WireBytes) + b = appendVarint(b, uint64(8*len(s))) + for _, v := range s { + b = appendFixed64(b, uint64(v)) + } + return b, nil +} +func appendFloat64Value(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) { + v := math.Float64bits(*ptr.toFloat64()) + b = appendVarint(b, wiretag) + b = appendFixed64(b, v) + return b, nil +} +func appendFloat64ValueNoZero(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) { + v := math.Float64bits(*ptr.toFloat64()) + if v == 0 { + return b, nil + } + b = appendVarint(b, wiretag) + b = appendFixed64(b, v) + return b, nil +} +func appendFloat64Ptr(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) { + p := *ptr.toFloat64Ptr() + if p == nil { + return b, nil + } + b = appendVarint(b, wiretag) + b = appendFixed64(b, math.Float64bits(*p)) + return b, nil +} +func appendFloat64Slice(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) { + s := *ptr.toFloat64Slice() + for _, v := range s { + b = appendVarint(b, wiretag) + b = appendFixed64(b, math.Float64bits(v)) + } + return b, nil +} +func appendFloat64PackedSlice(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) { + s := *ptr.toFloat64Slice() + if len(s) == 0 { + return b, nil + } + b = appendVarint(b, wiretag&^7|WireBytes) + b = appendVarint(b, uint64(8*len(s))) + for _, v := range s { + b = appendFixed64(b, math.Float64bits(v)) + } + return b, nil +} +func appendVarint32Value(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) { + v := *ptr.toUint32() + b = appendVarint(b, wiretag) + b = appendVarint(b, uint64(v)) + return b, nil +} +func appendVarint32ValueNoZero(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) { + v := *ptr.toUint32() + if v == 0 { + return b, nil + } + b = appendVarint(b, wiretag) + b = appendVarint(b, uint64(v)) + return b, nil +} +func appendVarint32Ptr(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) { + p := *ptr.toUint32Ptr() + if p == nil { + return b, nil + } + b = appendVarint(b, wiretag) + b = appendVarint(b, uint64(*p)) + return b, nil +} +func appendVarint32Slice(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) { + s := *ptr.toUint32Slice() + for _, v := range s { + b = appendVarint(b, wiretag) + b = appendVarint(b, uint64(v)) + } + return b, nil +} +func appendVarint32PackedSlice(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) { + s := *ptr.toUint32Slice() + if len(s) == 0 { + return b, nil + } + b = appendVarint(b, wiretag&^7|WireBytes) + // compute size + n := 0 + for _, v := range s { + n += SizeVarint(uint64(v)) + } + b = appendVarint(b, uint64(n)) + for _, v := range s { + b = appendVarint(b, uint64(v)) + } + return b, nil +} +func appendVarintS32Value(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) { + v := *ptr.toInt32() + b = appendVarint(b, wiretag) + b = appendVarint(b, uint64(v)) + return b, nil +} +func appendVarintS32ValueNoZero(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) { + v := *ptr.toInt32() + if v == 0 { + return b, nil + } + b = appendVarint(b, wiretag) + b = appendVarint(b, uint64(v)) + return b, nil +} +func appendVarintS32Ptr(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) { + p := ptr.getInt32Ptr() + if p == nil { + return b, nil + } + b = appendVarint(b, wiretag) + b = appendVarint(b, uint64(*p)) + return b, nil +} +func appendVarintS32Slice(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) { + s := ptr.getInt32Slice() + for _, v := range s { + b = appendVarint(b, wiretag) + b = appendVarint(b, uint64(v)) + } + return b, nil +} +func appendVarintS32PackedSlice(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) { + s := ptr.getInt32Slice() + if len(s) == 0 { + return b, nil + } + b = appendVarint(b, wiretag&^7|WireBytes) + // compute size + n := 0 + for _, v := range s { + n += SizeVarint(uint64(v)) + } + b = appendVarint(b, uint64(n)) + for _, v := range s { + b = appendVarint(b, uint64(v)) + } + return b, nil +} +func appendVarint64Value(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) { + v := *ptr.toUint64() + b = appendVarint(b, wiretag) + b = appendVarint(b, v) + return b, nil +} +func appendVarint64ValueNoZero(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) { + v := *ptr.toUint64() + if v == 0 { + return b, nil + } + b = appendVarint(b, wiretag) + b = appendVarint(b, v) + return b, nil +} +func appendVarint64Ptr(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) { + p := *ptr.toUint64Ptr() + if p == nil { + return b, nil + } + b = appendVarint(b, wiretag) + b = appendVarint(b, *p) + return b, nil +} +func appendVarint64Slice(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) { + s := *ptr.toUint64Slice() + for _, v := range s { + b = appendVarint(b, wiretag) + b = appendVarint(b, v) + } + return b, nil +} +func appendVarint64PackedSlice(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) { + s := *ptr.toUint64Slice() + if len(s) == 0 { + return b, nil + } + b = appendVarint(b, wiretag&^7|WireBytes) + // compute size + n := 0 + for _, v := range s { + n += SizeVarint(v) + } + b = appendVarint(b, uint64(n)) + for _, v := range s { + b = appendVarint(b, v) + } + return b, nil +} +func appendVarintS64Value(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) { + v := *ptr.toInt64() + b = appendVarint(b, wiretag) + b = appendVarint(b, uint64(v)) + return b, nil +} +func appendVarintS64ValueNoZero(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) { + v := *ptr.toInt64() + if v == 0 { + return b, nil + } + b = appendVarint(b, wiretag) + b = appendVarint(b, uint64(v)) + return b, nil +} +func appendVarintS64Ptr(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) { + p := *ptr.toInt64Ptr() + if p == nil { + return b, nil + } + b = appendVarint(b, wiretag) + b = appendVarint(b, uint64(*p)) + return b, nil +} +func appendVarintS64Slice(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) { + s := *ptr.toInt64Slice() + for _, v := range s { + b = appendVarint(b, wiretag) + b = appendVarint(b, uint64(v)) + } + return b, nil +} +func appendVarintS64PackedSlice(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) { + s := *ptr.toInt64Slice() + if len(s) == 0 { + return b, nil + } + b = appendVarint(b, wiretag&^7|WireBytes) + // compute size + n := 0 + for _, v := range s { + n += SizeVarint(uint64(v)) + } + b = appendVarint(b, uint64(n)) + for _, v := range s { + b = appendVarint(b, uint64(v)) + } + return b, nil +} +func appendZigzag32Value(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) { + v := *ptr.toInt32() + b = appendVarint(b, wiretag) + b = appendVarint(b, uint64((uint32(v)<<1)^uint32((int32(v)>>31)))) + return b, nil +} +func appendZigzag32ValueNoZero(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) { + v := *ptr.toInt32() + if v == 0 { + return b, nil + } + b = appendVarint(b, wiretag) + b = appendVarint(b, uint64((uint32(v)<<1)^uint32((int32(v)>>31)))) + return b, nil +} +func appendZigzag32Ptr(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) { + p := ptr.getInt32Ptr() + if p == nil { + return b, nil + } + b = appendVarint(b, wiretag) + v := *p + b = appendVarint(b, uint64((uint32(v)<<1)^uint32((int32(v)>>31)))) + return b, nil +} +func appendZigzag32Slice(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) { + s := ptr.getInt32Slice() + for _, v := range s { + b = appendVarint(b, wiretag) + b = appendVarint(b, uint64((uint32(v)<<1)^uint32((int32(v)>>31)))) + } + return b, nil +} +func appendZigzag32PackedSlice(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) { + s := ptr.getInt32Slice() + if len(s) == 0 { + return b, nil + } + b = appendVarint(b, wiretag&^7|WireBytes) + // compute size + n := 0 + for _, v := range s { + n += SizeVarint(uint64((uint32(v) << 1) ^ uint32((int32(v) >> 31)))) + } + b = appendVarint(b, uint64(n)) + for _, v := range s { + b = appendVarint(b, uint64((uint32(v)<<1)^uint32((int32(v)>>31)))) + } + return b, nil +} +func appendZigzag64Value(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) { + v := *ptr.toInt64() + b = appendVarint(b, wiretag) + b = appendVarint(b, uint64(v<<1)^uint64((int64(v)>>63))) + return b, nil +} +func appendZigzag64ValueNoZero(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) { + v := *ptr.toInt64() + if v == 0 { + return b, nil + } + b = appendVarint(b, wiretag) + b = appendVarint(b, uint64(v<<1)^uint64((int64(v)>>63))) + return b, nil +} +func appendZigzag64Ptr(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) { + p := *ptr.toInt64Ptr() + if p == nil { + return b, nil + } + b = appendVarint(b, wiretag) + v := *p + b = appendVarint(b, uint64(v<<1)^uint64((int64(v)>>63))) + return b, nil +} +func appendZigzag64Slice(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) { + s := *ptr.toInt64Slice() + for _, v := range s { + b = appendVarint(b, wiretag) + b = appendVarint(b, uint64(v<<1)^uint64((int64(v)>>63))) + } + return b, nil +} +func appendZigzag64PackedSlice(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) { + s := *ptr.toInt64Slice() + if len(s) == 0 { + return b, nil + } + b = appendVarint(b, wiretag&^7|WireBytes) + // compute size + n := 0 + for _, v := range s { + n += SizeVarint(uint64(v<<1) ^ uint64((int64(v) >> 63))) + } + b = appendVarint(b, uint64(n)) + for _, v := range s { + b = appendVarint(b, uint64(v<<1)^uint64((int64(v)>>63))) + } + return b, nil +} +func appendBoolValue(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) { + v := *ptr.toBool() + b = appendVarint(b, wiretag) + if v { + b = append(b, 1) + } else { + b = append(b, 0) + } + return b, nil +} +func appendBoolValueNoZero(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) { + v := *ptr.toBool() + if !v { + return b, nil + } + b = appendVarint(b, wiretag) + b = append(b, 1) + return b, nil +} + +func appendBoolPtr(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) { + p := *ptr.toBoolPtr() + if p == nil { + return b, nil + } + b = appendVarint(b, wiretag) + if *p { + b = append(b, 1) + } else { + b = append(b, 0) + } + return b, nil +} +func appendBoolSlice(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) { + s := *ptr.toBoolSlice() + for _, v := range s { + b = appendVarint(b, wiretag) + if v { + b = append(b, 1) + } else { + b = append(b, 0) + } + } + return b, nil +} +func appendBoolPackedSlice(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) { + s := *ptr.toBoolSlice() + if len(s) == 0 { + return b, nil + } + b = appendVarint(b, wiretag&^7|WireBytes) + b = appendVarint(b, uint64(len(s))) + for _, v := range s { + if v { + b = append(b, 1) + } else { + b = append(b, 0) + } + } + return b, nil +} +func appendStringValue(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) { + v := *ptr.toString() + if !utf8.ValidString(v) { + return nil, errInvalidUTF8 + } + b = appendVarint(b, wiretag) + b = appendVarint(b, uint64(len(v))) + b = append(b, v...) + return b, nil +} +func appendStringValueNoZero(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) { + v := *ptr.toString() + if v == "" { + return b, nil + } + if !utf8.ValidString(v) { + return nil, errInvalidUTF8 + } + b = appendVarint(b, wiretag) + b = appendVarint(b, uint64(len(v))) + b = append(b, v...) + return b, nil +} +func appendStringPtr(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) { + p := *ptr.toStringPtr() + if p == nil { + return b, nil + } + v := *p + if !utf8.ValidString(v) { + return nil, errInvalidUTF8 + } + b = appendVarint(b, wiretag) + b = appendVarint(b, uint64(len(v))) + b = append(b, v...) + return b, nil +} +func appendStringSlice(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) { + s := *ptr.toStringSlice() + for _, v := range s { + if !utf8.ValidString(v) { + return nil, errInvalidUTF8 + } + b = appendVarint(b, wiretag) + b = appendVarint(b, uint64(len(v))) + b = append(b, v...) + } + return b, nil +} +func appendBytes(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) { + v := *ptr.toBytes() + if v == nil { + return b, nil + } + b = appendVarint(b, wiretag) + b = appendVarint(b, uint64(len(v))) + b = append(b, v...) + return b, nil +} +func appendBytes3(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) { + v := *ptr.toBytes() + if len(v) == 0 { + return b, nil + } + b = appendVarint(b, wiretag) + b = appendVarint(b, uint64(len(v))) + b = append(b, v...) + return b, nil +} +func appendBytesOneof(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) { + v := *ptr.toBytes() + b = appendVarint(b, wiretag) + b = appendVarint(b, uint64(len(v))) + b = append(b, v...) + return b, nil +} +func appendBytesSlice(b []byte, ptr pointer, wiretag uint64, _ bool) ([]byte, error) { + s := *ptr.toBytesSlice() + for _, v := range s { + b = appendVarint(b, wiretag) + b = appendVarint(b, uint64(len(v))) + b = append(b, v...) + } + return b, nil +} + +// makeGroupMarshaler returns the sizer and marshaler for a group. +// u is the marshal info of the underlying message. +func makeGroupMarshaler(u *marshalInfo) (sizer, marshaler) { + return func(ptr pointer, tagsize int) int { + p := ptr.getPointer() + if p.isNil() { + return 0 + } + return u.size(p) + 2*tagsize + }, + func(b []byte, ptr pointer, wiretag uint64, deterministic bool) ([]byte, error) { + p := ptr.getPointer() + if p.isNil() { + return b, nil + } + var err error + b = appendVarint(b, wiretag) // start group + b, err = u.marshal(b, p, deterministic) + b = appendVarint(b, wiretag+(WireEndGroup-WireStartGroup)) // end group + return b, err + } +} + +// makeGroupSliceMarshaler returns the sizer and marshaler for a group slice. +// u is the marshal info of the underlying message. +func makeGroupSliceMarshaler(u *marshalInfo) (sizer, marshaler) { + return func(ptr pointer, tagsize int) int { + s := ptr.getPointerSlice() + n := 0 + for _, v := range s { + if v.isNil() { + continue + } + n += u.size(v) + 2*tagsize + } + return n + }, + func(b []byte, ptr pointer, wiretag uint64, deterministic bool) ([]byte, error) { + s := ptr.getPointerSlice() + var err, errreq error + for _, v := range s { + if v.isNil() { + return b, errRepeatedHasNil + } + b = appendVarint(b, wiretag) // start group + b, err = u.marshal(b, v, deterministic) + b = appendVarint(b, wiretag+(WireEndGroup-WireStartGroup)) // end group + if err != nil { + if _, ok := err.(*RequiredNotSetError); ok { + // Required field in submessage is not set. + // We record the error but keep going, to give a complete marshaling. + if errreq == nil { + errreq = err + } + continue + } + if err == ErrNil { + err = errRepeatedHasNil + } + return b, err + } + } + return b, errreq + } +} + +// makeMessageMarshaler returns the sizer and marshaler for a message field. +// u is the marshal info of the message. +func makeMessageMarshaler(u *marshalInfo) (sizer, marshaler) { + return func(ptr pointer, tagsize int) int { + p := ptr.getPointer() + if p.isNil() { + return 0 + } + siz := u.size(p) + return siz + SizeVarint(uint64(siz)) + tagsize + }, + func(b []byte, ptr pointer, wiretag uint64, deterministic bool) ([]byte, error) { + p := ptr.getPointer() + if p.isNil() { + return b, nil + } + b = appendVarint(b, wiretag) + siz := u.cachedsize(p) + b = appendVarint(b, uint64(siz)) + return u.marshal(b, p, deterministic) + } +} + +// makeMessageSliceMarshaler returns the sizer and marshaler for a message slice. +// u is the marshal info of the message. +func makeMessageSliceMarshaler(u *marshalInfo) (sizer, marshaler) { + return func(ptr pointer, tagsize int) int { + s := ptr.getPointerSlice() + n := 0 + for _, v := range s { + if v.isNil() { + continue + } + siz := u.size(v) + n += siz + SizeVarint(uint64(siz)) + tagsize + } + return n + }, + func(b []byte, ptr pointer, wiretag uint64, deterministic bool) ([]byte, error) { + s := ptr.getPointerSlice() + var err, errreq error + for _, v := range s { + if v.isNil() { + return b, errRepeatedHasNil + } + b = appendVarint(b, wiretag) + siz := u.cachedsize(v) + b = appendVarint(b, uint64(siz)) + b, err = u.marshal(b, v, deterministic) + if err != nil { + if _, ok := err.(*RequiredNotSetError); ok { + // Required field in submessage is not set. + // We record the error but keep going, to give a complete marshaling. + if errreq == nil { + errreq = err + } + continue + } + if err == ErrNil { + err = errRepeatedHasNil + } + return b, err + } + } + return b, errreq + } +} + +// makeMapMarshaler returns the sizer and marshaler for a map field. +// f is the pointer to the reflect data structure of the field. +func makeMapMarshaler(f *reflect.StructField) (sizer, marshaler) { + // figure out key and value type + t := f.Type + keyType := t.Key() + valType := t.Elem() + tags := strings.Split(f.Tag.Get("protobuf"), ",") + keyTags := strings.Split(f.Tag.Get("protobuf_key"), ",") + valTags := strings.Split(f.Tag.Get("protobuf_val"), ",") + for _, t := range tags { + if strings.HasPrefix(t, "customtype=") { + valTags = append(valTags, t) + } + if t == "stdtime" { + valTags = append(valTags, t) + } + if t == "stdduration" { + valTags = append(valTags, t) + } + } + keySizer, keyMarshaler := typeMarshaler(keyType, keyTags, false, false) // don't omit zero value in map + valSizer, valMarshaler := typeMarshaler(valType, valTags, false, false) // don't omit zero value in map + keyWireTag := 1<<3 | wiretype(keyTags[0]) + valWireTag := 2<<3 | wiretype(valTags[0]) + + // We create an interface to get the addresses of the map key and value. + // If value is pointer-typed, the interface is a direct interface, the + // idata itself is the value. Otherwise, the idata is the pointer to the + // value. + // Key cannot be pointer-typed. + valIsPtr := valType.Kind() == reflect.Ptr + return func(ptr pointer, tagsize int) int { + m := ptr.asPointerTo(t).Elem() // the map + n := 0 + for _, k := range m.MapKeys() { + ki := k.Interface() + vi := m.MapIndex(k).Interface() + kaddr := toAddrPointer(&ki, false) // pointer to key + vaddr := toAddrPointer(&vi, valIsPtr) // pointer to value + siz := keySizer(kaddr, 1) + valSizer(vaddr, 1) // tag of key = 1 (size=1), tag of val = 2 (size=1) + n += siz + SizeVarint(uint64(siz)) + tagsize + } + return n + }, + func(b []byte, ptr pointer, tag uint64, deterministic bool) ([]byte, error) { + m := ptr.asPointerTo(t).Elem() // the map + var err error + keys := m.MapKeys() + if len(keys) > 1 && deterministic { + sort.Sort(mapKeys(keys)) + } + for _, k := range keys { + ki := k.Interface() + vi := m.MapIndex(k).Interface() + kaddr := toAddrPointer(&ki, false) // pointer to key + vaddr := toAddrPointer(&vi, valIsPtr) // pointer to value + b = appendVarint(b, tag) + siz := keySizer(kaddr, 1) + valSizer(vaddr, 1) // tag of key = 1 (size=1), tag of val = 2 (size=1) + b = appendVarint(b, uint64(siz)) + b, err = keyMarshaler(b, kaddr, keyWireTag, deterministic) + if err != nil { + return b, err + } + b, err = valMarshaler(b, vaddr, valWireTag, deterministic) + if err != nil && err != ErrNil { // allow nil value in map + return b, err + } + } + return b, nil + } +} + +// makeOneOfMarshaler returns the sizer and marshaler for a oneof field. +// fi is the marshal info of the field. +// f is the pointer to the reflect data structure of the field. +func makeOneOfMarshaler(fi *marshalFieldInfo, f *reflect.StructField) (sizer, marshaler) { + // Oneof field is an interface. We need to get the actual data type on the fly. + t := f.Type + return func(ptr pointer, _ int) int { + p := ptr.getInterfacePointer() + if p.isNil() { + return 0 + } + v := ptr.asPointerTo(t).Elem().Elem().Elem() // *interface -> interface -> *struct -> struct + telem := v.Type() + e := fi.oneofElems[telem] + return e.sizer(p, e.tagsize) + }, + func(b []byte, ptr pointer, _ uint64, deterministic bool) ([]byte, error) { + p := ptr.getInterfacePointer() + if p.isNil() { + return b, nil + } + v := ptr.asPointerTo(t).Elem().Elem().Elem() // *interface -> interface -> *struct -> struct + telem := v.Type() + if telem.Field(0).Type.Kind() == reflect.Ptr && p.getPointer().isNil() { + return b, errOneofHasNil + } + e := fi.oneofElems[telem] + return e.marshaler(b, p, e.wiretag, deterministic) + } +} + +// sizeExtensions computes the size of encoded data for a XXX_InternalExtensions field. +func (u *marshalInfo) sizeExtensions(ext *XXX_InternalExtensions) int { + m, mu := ext.extensionsRead() + if m == nil { + return 0 + } + mu.Lock() + + n := 0 + for _, e := range m { + if e.value == nil || e.desc == nil { + // Extension is only in its encoded form. + n += len(e.enc) + continue + } + + // We don't skip extensions that have an encoded form set, + // because the extension value may have been mutated after + // the last time this function was called. + ei := u.getExtElemInfo(e.desc) + v := e.value + p := toAddrPointer(&v, ei.isptr) + n += ei.sizer(p, ei.tagsize) + } + mu.Unlock() + return n +} + +// appendExtensions marshals a XXX_InternalExtensions field to the end of byte slice b. +func (u *marshalInfo) appendExtensions(b []byte, ext *XXX_InternalExtensions, deterministic bool) ([]byte, error) { + m, mu := ext.extensionsRead() + if m == nil { + return b, nil + } + mu.Lock() + defer mu.Unlock() + + var err error + + // Fast-path for common cases: zero or one extensions. + // Don't bother sorting the keys. + if len(m) <= 1 { + for _, e := range m { + if e.value == nil || e.desc == nil { + // Extension is only in its encoded form. + b = append(b, e.enc...) + continue + } + + // We don't skip extensions that have an encoded form set, + // because the extension value may have been mutated after + // the last time this function was called. + + ei := u.getExtElemInfo(e.desc) + v := e.value + p := toAddrPointer(&v, ei.isptr) + b, err = ei.marshaler(b, p, ei.wiretag, deterministic) + if err != nil { + return b, err + } + } + return b, nil + } + + // Sort the keys to provide a deterministic encoding. + // Not sure this is required, but the old code does it. + keys := make([]int, 0, len(m)) + for k := range m { + keys = append(keys, int(k)) + } + sort.Ints(keys) + + for _, k := range keys { + e := m[int32(k)] + if e.value == nil || e.desc == nil { + // Extension is only in its encoded form. + b = append(b, e.enc...) + continue + } + + // We don't skip extensions that have an encoded form set, + // because the extension value may have been mutated after + // the last time this function was called. + + ei := u.getExtElemInfo(e.desc) + v := e.value + p := toAddrPointer(&v, ei.isptr) + b, err = ei.marshaler(b, p, ei.wiretag, deterministic) + if err != nil { + return b, err + } + } + return b, nil +} + +// message set format is: +// message MessageSet { +// repeated group Item = 1 { +// required int32 type_id = 2; +// required string message = 3; +// }; +// } + +// sizeMessageSet computes the size of encoded data for a XXX_InternalExtensions field +// in message set format (above). +func (u *marshalInfo) sizeMessageSet(ext *XXX_InternalExtensions) int { + m, mu := ext.extensionsRead() + if m == nil { + return 0 + } + mu.Lock() + + n := 0 + for id, e := range m { + n += 2 // start group, end group. tag = 1 (size=1) + n += SizeVarint(uint64(id)) + 1 // type_id, tag = 2 (size=1) + + if e.value == nil || e.desc == nil { + // Extension is only in its encoded form. + msgWithLen := skipVarint(e.enc) // skip old tag, but leave the length varint + siz := len(msgWithLen) + n += siz + 1 // message, tag = 3 (size=1) + continue + } + + // We don't skip extensions that have an encoded form set, + // because the extension value may have been mutated after + // the last time this function was called. + + ei := u.getExtElemInfo(e.desc) + v := e.value + p := toAddrPointer(&v, ei.isptr) + n += ei.sizer(p, 1) // message, tag = 3 (size=1) + } + mu.Unlock() + return n +} + +// appendMessageSet marshals a XXX_InternalExtensions field in message set format (above) +// to the end of byte slice b. +func (u *marshalInfo) appendMessageSet(b []byte, ext *XXX_InternalExtensions, deterministic bool) ([]byte, error) { + m, mu := ext.extensionsRead() + if m == nil { + return b, nil + } + mu.Lock() + defer mu.Unlock() + + var err error + + // Fast-path for common cases: zero or one extensions. + // Don't bother sorting the keys. + if len(m) <= 1 { + for id, e := range m { + b = append(b, 1<<3|WireStartGroup) + b = append(b, 2<<3|WireVarint) + b = appendVarint(b, uint64(id)) + + if e.value == nil || e.desc == nil { + // Extension is only in its encoded form. + msgWithLen := skipVarint(e.enc) // skip old tag, but leave the length varint + b = append(b, 3<<3|WireBytes) + b = append(b, msgWithLen...) + b = append(b, 1<<3|WireEndGroup) + continue + } + + // We don't skip extensions that have an encoded form set, + // because the extension value may have been mutated after + // the last time this function was called. + + ei := u.getExtElemInfo(e.desc) + v := e.value + p := toAddrPointer(&v, ei.isptr) + b, err = ei.marshaler(b, p, 3<<3|WireBytes, deterministic) + if err != nil { + return b, err + } + b = append(b, 1<<3|WireEndGroup) + } + return b, nil + } + + // Sort the keys to provide a deterministic encoding. + keys := make([]int, 0, len(m)) + for k := range m { + keys = append(keys, int(k)) + } + sort.Ints(keys) + + for _, id := range keys { + e := m[int32(id)] + b = append(b, 1<<3|WireStartGroup) + b = append(b, 2<<3|WireVarint) + b = appendVarint(b, uint64(id)) + + if e.value == nil || e.desc == nil { + // Extension is only in its encoded form. + msgWithLen := skipVarint(e.enc) // skip old tag, but leave the length varint + b = append(b, 3<<3|WireBytes) + b = append(b, msgWithLen...) + b = append(b, 1<<3|WireEndGroup) + continue + } + + // We don't skip extensions that have an encoded form set, + // because the extension value may have been mutated after + // the last time this function was called. + + ei := u.getExtElemInfo(e.desc) + v := e.value + p := toAddrPointer(&v, ei.isptr) + b, err = ei.marshaler(b, p, 3<<3|WireBytes, deterministic) + b = append(b, 1<<3|WireEndGroup) + if err != nil { + return b, err + } + } + return b, nil +} + +// sizeV1Extensions computes the size of encoded data for a V1-API extension field. +func (u *marshalInfo) sizeV1Extensions(m map[int32]Extension) int { + if m == nil { + return 0 + } + + n := 0 + for _, e := range m { + if e.value == nil || e.desc == nil { + // Extension is only in its encoded form. + n += len(e.enc) + continue + } + + // We don't skip extensions that have an encoded form set, + // because the extension value may have been mutated after + // the last time this function was called. + + ei := u.getExtElemInfo(e.desc) + v := e.value + p := toAddrPointer(&v, ei.isptr) + n += ei.sizer(p, ei.tagsize) + } + return n +} + +// appendV1Extensions marshals a V1-API extension field to the end of byte slice b. +func (u *marshalInfo) appendV1Extensions(b []byte, m map[int32]Extension, deterministic bool) ([]byte, error) { + if m == nil { + return b, nil + } + + // Sort the keys to provide a deterministic encoding. + keys := make([]int, 0, len(m)) + for k := range m { + keys = append(keys, int(k)) + } + sort.Ints(keys) + + var err error + for _, k := range keys { + e := m[int32(k)] + if e.value == nil || e.desc == nil { + // Extension is only in its encoded form. + b = append(b, e.enc...) + continue + } + + // We don't skip extensions that have an encoded form set, + // because the extension value may have been mutated after + // the last time this function was called. + + ei := u.getExtElemInfo(e.desc) + v := e.value + p := toAddrPointer(&v, ei.isptr) + b, err = ei.marshaler(b, p, ei.wiretag, deterministic) + if err != nil { + return b, err + } + } + return b, nil +} + +// newMarshaler is the interface representing objects that can marshal themselves. +// +// This exists to support protoc-gen-go generated messages. +// The proto package will stop type-asserting to this interface in the future. +// +// DO NOT DEPEND ON THIS. +type newMarshaler interface { + XXX_Size() int + XXX_Marshal(b []byte, deterministic bool) ([]byte, error) +} + +// Size returns the encoded size of a protocol buffer message. +// This is the main entry point. +func Size(pb Message) int { + if m, ok := pb.(newMarshaler); ok { + return m.XXX_Size() + } + if m, ok := pb.(Marshaler); ok { + // If the message can marshal itself, let it do it, for compatibility. + // NOTE: This is not efficient. + b, _ := m.Marshal() + return len(b) + } + // in case somehow we didn't generate the wrapper + if pb == nil { + return 0 + } + var info InternalMessageInfo + return info.Size(pb) +} + +// Marshal takes a protocol buffer message +// and encodes it into the wire format, returning the data. +// This is the main entry point. +func Marshal(pb Message) ([]byte, error) { + if m, ok := pb.(newMarshaler); ok { + siz := m.XXX_Size() + b := make([]byte, 0, siz) + return m.XXX_Marshal(b, false) + } + if m, ok := pb.(Marshaler); ok { + // If the message can marshal itself, let it do it, for compatibility. + // NOTE: This is not efficient. + return m.Marshal() + } + // in case somehow we didn't generate the wrapper + if pb == nil { + return nil, ErrNil + } + var info InternalMessageInfo + siz := info.Size(pb) + b := make([]byte, 0, siz) + return info.Marshal(b, pb, false) +} + +// Marshal takes a protocol buffer message +// and encodes it into the wire format, writing the result to the +// Buffer. +// This is an alternative entry point. It is not necessary to use +// a Buffer for most applications. +func (p *Buffer) Marshal(pb Message) error { + var err error + if m, ok := pb.(newMarshaler); ok { + siz := m.XXX_Size() + p.grow(siz) // make sure buf has enough capacity + p.buf, err = m.XXX_Marshal(p.buf, p.deterministic) + return err + } + if m, ok := pb.(Marshaler); ok { + // If the message can marshal itself, let it do it, for compatibility. + // NOTE: This is not efficient. + var b []byte + b, err = m.Marshal() + p.buf = append(p.buf, b...) + return err + } + // in case somehow we didn't generate the wrapper + if pb == nil { + return ErrNil + } + var info InternalMessageInfo + siz := info.Size(pb) + p.grow(siz) // make sure buf has enough capacity + p.buf, err = info.Marshal(p.buf, pb, p.deterministic) + return err +} + +// grow grows the buffer's capacity, if necessary, to guarantee space for +// another n bytes. After grow(n), at least n bytes can be written to the +// buffer without another allocation. +func (p *Buffer) grow(n int) { + need := len(p.buf) + n + if need <= cap(p.buf) { + return + } + newCap := len(p.buf) * 2 + if newCap < need { + newCap = need + } + p.buf = append(make([]byte, 0, newCap), p.buf...) +} diff --git a/vendor/github.com/gogo/protobuf/proto/table_marshal_gogo.go b/vendor/github.com/gogo/protobuf/proto/table_marshal_gogo.go new file mode 100644 index 0000000..997f57c --- /dev/null +++ b/vendor/github.com/gogo/protobuf/proto/table_marshal_gogo.go @@ -0,0 +1,388 @@ +// Protocol Buffers for Go with Gadgets +// +// Copyright (c) 2018, The GoGo Authors. All rights reserved. +// http://github.com/gogo/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. +// +// 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 + +import ( + "reflect" + "time" +) + +// makeMessageRefMarshaler differs a bit from makeMessageMarshaler +// It marshal a message T instead of a *T +func makeMessageRefMarshaler(u *marshalInfo) (sizer, marshaler) { + return func(ptr pointer, tagsize int) int { + siz := u.size(ptr) + return siz + SizeVarint(uint64(siz)) + tagsize + }, + func(b []byte, ptr pointer, wiretag uint64, deterministic bool) ([]byte, error) { + b = appendVarint(b, wiretag) + siz := u.cachedsize(ptr) + b = appendVarint(b, uint64(siz)) + return u.marshal(b, ptr, deterministic) + } +} + +// makeMessageRefSliceMarshaler differs quite a lot from makeMessageSliceMarshaler +// It marshals a slice of messages []T instead of []*T +func makeMessageRefSliceMarshaler(u *marshalInfo) (sizer, marshaler) { + return func(ptr pointer, tagsize int) int { + s := ptr.getSlice(u.typ) + n := 0 + for i := 0; i < s.Len(); i++ { + elem := s.Index(i) + e := elem.Interface() + v := toAddrPointer(&e, false) + siz := u.size(v) + n += siz + SizeVarint(uint64(siz)) + tagsize + } + return n + }, + func(b []byte, ptr pointer, wiretag uint64, deterministic bool) ([]byte, error) { + s := ptr.getSlice(u.typ) + var err, errreq error + for i := 0; i < s.Len(); i++ { + elem := s.Index(i) + e := elem.Interface() + v := toAddrPointer(&e, false) + b = appendVarint(b, wiretag) + siz := u.size(v) + b = appendVarint(b, uint64(siz)) + b, err = u.marshal(b, v, deterministic) + + if err != nil { + if _, ok := err.(*RequiredNotSetError); ok { + // Required field in submessage is not set. + // We record the error but keep going, to give a complete marshaling. + if errreq == nil { + errreq = err + } + continue + } + if err == ErrNil { + err = errRepeatedHasNil + } + return b, err + } + } + + return b, errreq + } +} + +func makeCustomPtrMarshaler(u *marshalInfo) (sizer, marshaler) { + return func(ptr pointer, tagsize int) int { + if ptr.isNil() { + return 0 + } + m := ptr.asPointerTo(reflect.PtrTo(u.typ)).Elem().Interface().(custom) + siz := m.Size() + return tagsize + SizeVarint(uint64(siz)) + siz + }, func(b []byte, ptr pointer, wiretag uint64, deterministic bool) ([]byte, error) { + if ptr.isNil() { + return b, nil + } + m := ptr.asPointerTo(reflect.PtrTo(u.typ)).Elem().Interface().(custom) + siz := m.Size() + buf, err := m.Marshal() + if err != nil { + return nil, err + } + b = appendVarint(b, wiretag) + b = appendVarint(b, uint64(siz)) + b = append(b, buf...) + return b, nil + } +} + +func makeCustomMarshaler(u *marshalInfo) (sizer, marshaler) { + return func(ptr pointer, tagsize int) int { + m := ptr.asPointerTo(u.typ).Interface().(custom) + siz := m.Size() + return tagsize + SizeVarint(uint64(siz)) + siz + }, func(b []byte, ptr pointer, wiretag uint64, deterministic bool) ([]byte, error) { + m := ptr.asPointerTo(u.typ).Interface().(custom) + siz := m.Size() + buf, err := m.Marshal() + if err != nil { + return nil, err + } + b = appendVarint(b, wiretag) + b = appendVarint(b, uint64(siz)) + b = append(b, buf...) + return b, nil + } +} + +func makeTimeMarshaler(u *marshalInfo) (sizer, marshaler) { + return func(ptr pointer, tagsize int) int { + t := ptr.asPointerTo(u.typ).Interface().(*time.Time) + ts, err := timestampProto(*t) + if err != nil { + return 0 + } + siz := Size(ts) + return tagsize + SizeVarint(uint64(siz)) + siz + }, func(b []byte, ptr pointer, wiretag uint64, deterministic bool) ([]byte, error) { + t := ptr.asPointerTo(u.typ).Interface().(*time.Time) + ts, err := timestampProto(*t) + if err != nil { + return nil, err + } + buf, err := Marshal(ts) + if err != nil { + return nil, err + } + b = appendVarint(b, wiretag) + b = appendVarint(b, uint64(len(buf))) + b = append(b, buf...) + return b, nil + } +} + +func makeTimePtrMarshaler(u *marshalInfo) (sizer, marshaler) { + return func(ptr pointer, tagsize int) int { + if ptr.isNil() { + return 0 + } + t := ptr.asPointerTo(reflect.PtrTo(u.typ)).Elem().Interface().(*time.Time) + ts, err := timestampProto(*t) + if err != nil { + return 0 + } + siz := Size(ts) + return tagsize + SizeVarint(uint64(siz)) + siz + }, func(b []byte, ptr pointer, wiretag uint64, deterministic bool) ([]byte, error) { + if ptr.isNil() { + return b, nil + } + t := ptr.asPointerTo(reflect.PtrTo(u.typ)).Elem().Interface().(*time.Time) + ts, err := timestampProto(*t) + if err != nil { + return nil, err + } + buf, err := Marshal(ts) + if err != nil { + return nil, err + } + b = appendVarint(b, wiretag) + b = appendVarint(b, uint64(len(buf))) + b = append(b, buf...) + return b, nil + } +} + +func makeTimeSliceMarshaler(u *marshalInfo) (sizer, marshaler) { + return func(ptr pointer, tagsize int) int { + s := ptr.getSlice(u.typ) + n := 0 + for i := 0; i < s.Len(); i++ { + elem := s.Index(i) + t := elem.Interface().(time.Time) + ts, err := timestampProto(t) + if err != nil { + return 0 + } + siz := Size(ts) + n += siz + SizeVarint(uint64(siz)) + tagsize + } + return n + }, + func(b []byte, ptr pointer, wiretag uint64, deterministic bool) ([]byte, error) { + s := ptr.getSlice(u.typ) + for i := 0; i < s.Len(); i++ { + elem := s.Index(i) + t := elem.Interface().(time.Time) + ts, err := timestampProto(t) + if err != nil { + return nil, err + } + siz := Size(ts) + buf, err := Marshal(ts) + if err != nil { + return nil, err + } + b = appendVarint(b, wiretag) + b = appendVarint(b, uint64(siz)) + b = append(b, buf...) + } + + return b, nil + } +} + +func makeTimePtrSliceMarshaler(u *marshalInfo) (sizer, marshaler) { + return func(ptr pointer, tagsize int) int { + s := ptr.getSlice(reflect.PtrTo(u.typ)) + n := 0 + for i := 0; i < s.Len(); i++ { + elem := s.Index(i) + t := elem.Interface().(*time.Time) + ts, err := timestampProto(*t) + if err != nil { + return 0 + } + siz := Size(ts) + n += siz + SizeVarint(uint64(siz)) + tagsize + } + return n + }, + func(b []byte, ptr pointer, wiretag uint64, deterministic bool) ([]byte, error) { + s := ptr.getSlice(reflect.PtrTo(u.typ)) + for i := 0; i < s.Len(); i++ { + elem := s.Index(i) + t := elem.Interface().(*time.Time) + ts, err := timestampProto(*t) + if err != nil { + return nil, err + } + siz := Size(ts) + buf, err := Marshal(ts) + if err != nil { + return nil, err + } + b = appendVarint(b, wiretag) + b = appendVarint(b, uint64(siz)) + b = append(b, buf...) + } + + return b, nil + } +} + +func makeDurationMarshaler(u *marshalInfo) (sizer, marshaler) { + return func(ptr pointer, tagsize int) int { + d := ptr.asPointerTo(u.typ).Interface().(*time.Duration) + dur := durationProto(*d) + siz := Size(dur) + return tagsize + SizeVarint(uint64(siz)) + siz + }, func(b []byte, ptr pointer, wiretag uint64, deterministic bool) ([]byte, error) { + d := ptr.asPointerTo(u.typ).Interface().(*time.Duration) + dur := durationProto(*d) + buf, err := Marshal(dur) + if err != nil { + return nil, err + } + b = appendVarint(b, wiretag) + b = appendVarint(b, uint64(len(buf))) + b = append(b, buf...) + return b, nil + } +} + +func makeDurationPtrMarshaler(u *marshalInfo) (sizer, marshaler) { + return func(ptr pointer, tagsize int) int { + if ptr.isNil() { + return 0 + } + d := ptr.asPointerTo(reflect.PtrTo(u.typ)).Elem().Interface().(*time.Duration) + dur := durationProto(*d) + siz := Size(dur) + return tagsize + SizeVarint(uint64(siz)) + siz + }, func(b []byte, ptr pointer, wiretag uint64, deterministic bool) ([]byte, error) { + if ptr.isNil() { + return b, nil + } + d := ptr.asPointerTo(reflect.PtrTo(u.typ)).Elem().Interface().(*time.Duration) + dur := durationProto(*d) + buf, err := Marshal(dur) + if err != nil { + return nil, err + } + b = appendVarint(b, wiretag) + b = appendVarint(b, uint64(len(buf))) + b = append(b, buf...) + return b, nil + } +} + +func makeDurationSliceMarshaler(u *marshalInfo) (sizer, marshaler) { + return func(ptr pointer, tagsize int) int { + s := ptr.getSlice(u.typ) + n := 0 + for i := 0; i < s.Len(); i++ { + elem := s.Index(i) + d := elem.Interface().(time.Duration) + dur := durationProto(d) + siz := Size(dur) + n += siz + SizeVarint(uint64(siz)) + tagsize + } + return n + }, + func(b []byte, ptr pointer, wiretag uint64, deterministic bool) ([]byte, error) { + s := ptr.getSlice(u.typ) + for i := 0; i < s.Len(); i++ { + elem := s.Index(i) + d := elem.Interface().(time.Duration) + dur := durationProto(d) + siz := Size(dur) + buf, err := Marshal(dur) + if err != nil { + return nil, err + } + b = appendVarint(b, wiretag) + b = appendVarint(b, uint64(siz)) + b = append(b, buf...) + } + + return b, nil + } +} + +func makeDurationPtrSliceMarshaler(u *marshalInfo) (sizer, marshaler) { + return func(ptr pointer, tagsize int) int { + s := ptr.getSlice(reflect.PtrTo(u.typ)) + n := 0 + for i := 0; i < s.Len(); i++ { + elem := s.Index(i) + d := elem.Interface().(*time.Duration) + dur := durationProto(*d) + siz := Size(dur) + n += siz + SizeVarint(uint64(siz)) + tagsize + } + return n + }, + func(b []byte, ptr pointer, wiretag uint64, deterministic bool) ([]byte, error) { + s := ptr.getSlice(reflect.PtrTo(u.typ)) + for i := 0; i < s.Len(); i++ { + elem := s.Index(i) + d := elem.Interface().(*time.Duration) + dur := durationProto(*d) + siz := Size(dur) + buf, err := Marshal(dur) + if err != nil { + return nil, err + } + b = appendVarint(b, wiretag) + b = appendVarint(b, uint64(siz)) + b = append(b, buf...) + } + + return b, nil + } +} diff --git a/vendor/github.com/gogo/protobuf/proto/table_merge.go b/vendor/github.com/gogo/protobuf/proto/table_merge.go new file mode 100644 index 0000000..f520106 --- /dev/null +++ b/vendor/github.com/gogo/protobuf/proto/table_merge.go @@ -0,0 +1,657 @@ +// Go support for Protocol Buffers - Google's data interchange format +// +// Copyright 2016 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 + +import ( + "fmt" + "reflect" + "strings" + "sync" + "sync/atomic" +) + +// Merge merges the src message into dst. +// This assumes that dst and src of the same type and are non-nil. +func (a *InternalMessageInfo) Merge(dst, src Message) { + mi := atomicLoadMergeInfo(&a.merge) + if mi == nil { + mi = getMergeInfo(reflect.TypeOf(dst).Elem()) + atomicStoreMergeInfo(&a.merge, mi) + } + mi.merge(toPointer(&dst), toPointer(&src)) +} + +type mergeInfo struct { + typ reflect.Type + + initialized int32 // 0: only typ is valid, 1: everything is valid + lock sync.Mutex + + fields []mergeFieldInfo + unrecognized field // Offset of XXX_unrecognized +} + +type mergeFieldInfo struct { + field field // Offset of field, guaranteed to be valid + + // isPointer reports whether the value in the field is a pointer. + // This is true for the following situations: + // * Pointer to struct + // * Pointer to basic type (proto2 only) + // * Slice (first value in slice header is a pointer) + // * String (first value in string header is a pointer) + isPointer bool + + // basicWidth reports the width of the field assuming that it is directly + // embedded in the struct (as is the case for basic types in proto3). + // The possible values are: + // 0: invalid + // 1: bool + // 4: int32, uint32, float32 + // 8: int64, uint64, float64 + basicWidth int + + // Where dst and src are pointers to the types being merged. + merge func(dst, src pointer) +} + +var ( + mergeInfoMap = map[reflect.Type]*mergeInfo{} + mergeInfoLock sync.Mutex +) + +func getMergeInfo(t reflect.Type) *mergeInfo { + mergeInfoLock.Lock() + defer mergeInfoLock.Unlock() + mi := mergeInfoMap[t] + if mi == nil { + mi = &mergeInfo{typ: t} + mergeInfoMap[t] = mi + } + return mi +} + +// merge merges src into dst assuming they are both of type *mi.typ. +func (mi *mergeInfo) merge(dst, src pointer) { + if dst.isNil() { + panic("proto: nil destination") + } + if src.isNil() { + return // Nothing to do. + } + + if atomic.LoadInt32(&mi.initialized) == 0 { + mi.computeMergeInfo() + } + + for _, fi := range mi.fields { + sfp := src.offset(fi.field) + + // As an optimization, we can avoid the merge function call cost + // if we know for sure that the source will have no effect + // by checking if it is the zero value. + if unsafeAllowed { + if fi.isPointer && sfp.getPointer().isNil() { // Could be slice or string + continue + } + if fi.basicWidth > 0 { + switch { + case fi.basicWidth == 1 && !*sfp.toBool(): + continue + case fi.basicWidth == 4 && *sfp.toUint32() == 0: + continue + case fi.basicWidth == 8 && *sfp.toUint64() == 0: + continue + } + } + } + + dfp := dst.offset(fi.field) + fi.merge(dfp, sfp) + } + + // TODO: Make this faster? + out := dst.asPointerTo(mi.typ).Elem() + in := src.asPointerTo(mi.typ).Elem() + if emIn, err := extendable(in.Addr().Interface()); err == nil { + emOut, _ := extendable(out.Addr().Interface()) + mIn, muIn := emIn.extensionsRead() + if mIn != nil { + mOut := emOut.extensionsWrite() + muIn.Lock() + mergeExtension(mOut, mIn) + muIn.Unlock() + } + } + + if mi.unrecognized.IsValid() { + if b := *src.offset(mi.unrecognized).toBytes(); len(b) > 0 { + *dst.offset(mi.unrecognized).toBytes() = append([]byte(nil), b...) + } + } +} + +func (mi *mergeInfo) computeMergeInfo() { + mi.lock.Lock() + defer mi.lock.Unlock() + if mi.initialized != 0 { + return + } + t := mi.typ + n := t.NumField() + + props := GetProperties(t) + for i := 0; i < n; i++ { + f := t.Field(i) + if strings.HasPrefix(f.Name, "XXX_") { + continue + } + + mfi := mergeFieldInfo{field: toField(&f)} + tf := f.Type + + // As an optimization, we can avoid the merge function call cost + // if we know for sure that the source will have no effect + // by checking if it is the zero value. + if unsafeAllowed { + switch tf.Kind() { + case reflect.Ptr, reflect.Slice, reflect.String: + // As a special case, we assume slices and strings are pointers + // since we know that the first field in the SliceSlice or + // StringHeader is a data pointer. + mfi.isPointer = true + case reflect.Bool: + mfi.basicWidth = 1 + case reflect.Int32, reflect.Uint32, reflect.Float32: + mfi.basicWidth = 4 + case reflect.Int64, reflect.Uint64, reflect.Float64: + mfi.basicWidth = 8 + } + } + + // Unwrap tf to get at its most basic type. + var isPointer, isSlice bool + if tf.Kind() == reflect.Slice && tf.Elem().Kind() != reflect.Uint8 { + isSlice = true + tf = tf.Elem() + } + if tf.Kind() == reflect.Ptr { + isPointer = true + tf = tf.Elem() + } + if isPointer && isSlice && tf.Kind() != reflect.Struct { + panic("both pointer and slice for basic type in " + tf.Name()) + } + + switch tf.Kind() { + case reflect.Int32: + switch { + case isSlice: // E.g., []int32 + mfi.merge = func(dst, src pointer) { + // NOTE: toInt32Slice is not defined (see pointer_reflect.go). + /* + sfsp := src.toInt32Slice() + if *sfsp != nil { + dfsp := dst.toInt32Slice() + *dfsp = append(*dfsp, *sfsp...) + if *dfsp == nil { + *dfsp = []int64{} + } + } + */ + sfs := src.getInt32Slice() + if sfs != nil { + dfs := dst.getInt32Slice() + dfs = append(dfs, sfs...) + if dfs == nil { + dfs = []int32{} + } + dst.setInt32Slice(dfs) + } + } + case isPointer: // E.g., *int32 + mfi.merge = func(dst, src pointer) { + // NOTE: toInt32Ptr is not defined (see pointer_reflect.go). + /* + sfpp := src.toInt32Ptr() + if *sfpp != nil { + dfpp := dst.toInt32Ptr() + if *dfpp == nil { + *dfpp = Int32(**sfpp) + } else { + **dfpp = **sfpp + } + } + */ + sfp := src.getInt32Ptr() + if sfp != nil { + dfp := dst.getInt32Ptr() + if dfp == nil { + dst.setInt32Ptr(*sfp) + } else { + *dfp = *sfp + } + } + } + default: // E.g., int32 + mfi.merge = func(dst, src pointer) { + if v := *src.toInt32(); v != 0 { + *dst.toInt32() = v + } + } + } + case reflect.Int64: + switch { + case isSlice: // E.g., []int64 + mfi.merge = func(dst, src pointer) { + sfsp := src.toInt64Slice() + if *sfsp != nil { + dfsp := dst.toInt64Slice() + *dfsp = append(*dfsp, *sfsp...) + if *dfsp == nil { + *dfsp = []int64{} + } + } + } + case isPointer: // E.g., *int64 + mfi.merge = func(dst, src pointer) { + sfpp := src.toInt64Ptr() + if *sfpp != nil { + dfpp := dst.toInt64Ptr() + if *dfpp == nil { + *dfpp = Int64(**sfpp) + } else { + **dfpp = **sfpp + } + } + } + default: // E.g., int64 + mfi.merge = func(dst, src pointer) { + if v := *src.toInt64(); v != 0 { + *dst.toInt64() = v + } + } + } + case reflect.Uint32: + switch { + case isSlice: // E.g., []uint32 + mfi.merge = func(dst, src pointer) { + sfsp := src.toUint32Slice() + if *sfsp != nil { + dfsp := dst.toUint32Slice() + *dfsp = append(*dfsp, *sfsp...) + if *dfsp == nil { + *dfsp = []uint32{} + } + } + } + case isPointer: // E.g., *uint32 + mfi.merge = func(dst, src pointer) { + sfpp := src.toUint32Ptr() + if *sfpp != nil { + dfpp := dst.toUint32Ptr() + if *dfpp == nil { + *dfpp = Uint32(**sfpp) + } else { + **dfpp = **sfpp + } + } + } + default: // E.g., uint32 + mfi.merge = func(dst, src pointer) { + if v := *src.toUint32(); v != 0 { + *dst.toUint32() = v + } + } + } + case reflect.Uint64: + switch { + case isSlice: // E.g., []uint64 + mfi.merge = func(dst, src pointer) { + sfsp := src.toUint64Slice() + if *sfsp != nil { + dfsp := dst.toUint64Slice() + *dfsp = append(*dfsp, *sfsp...) + if *dfsp == nil { + *dfsp = []uint64{} + } + } + } + case isPointer: // E.g., *uint64 + mfi.merge = func(dst, src pointer) { + sfpp := src.toUint64Ptr() + if *sfpp != nil { + dfpp := dst.toUint64Ptr() + if *dfpp == nil { + *dfpp = Uint64(**sfpp) + } else { + **dfpp = **sfpp + } + } + } + default: // E.g., uint64 + mfi.merge = func(dst, src pointer) { + if v := *src.toUint64(); v != 0 { + *dst.toUint64() = v + } + } + } + case reflect.Float32: + switch { + case isSlice: // E.g., []float32 + mfi.merge = func(dst, src pointer) { + sfsp := src.toFloat32Slice() + if *sfsp != nil { + dfsp := dst.toFloat32Slice() + *dfsp = append(*dfsp, *sfsp...) + if *dfsp == nil { + *dfsp = []float32{} + } + } + } + case isPointer: // E.g., *float32 + mfi.merge = func(dst, src pointer) { + sfpp := src.toFloat32Ptr() + if *sfpp != nil { + dfpp := dst.toFloat32Ptr() + if *dfpp == nil { + *dfpp = Float32(**sfpp) + } else { + **dfpp = **sfpp + } + } + } + default: // E.g., float32 + mfi.merge = func(dst, src pointer) { + if v := *src.toFloat32(); v != 0 { + *dst.toFloat32() = v + } + } + } + case reflect.Float64: + switch { + case isSlice: // E.g., []float64 + mfi.merge = func(dst, src pointer) { + sfsp := src.toFloat64Slice() + if *sfsp != nil { + dfsp := dst.toFloat64Slice() + *dfsp = append(*dfsp, *sfsp...) + if *dfsp == nil { + *dfsp = []float64{} + } + } + } + case isPointer: // E.g., *float64 + mfi.merge = func(dst, src pointer) { + sfpp := src.toFloat64Ptr() + if *sfpp != nil { + dfpp := dst.toFloat64Ptr() + if *dfpp == nil { + *dfpp = Float64(**sfpp) + } else { + **dfpp = **sfpp + } + } + } + default: // E.g., float64 + mfi.merge = func(dst, src pointer) { + if v := *src.toFloat64(); v != 0 { + *dst.toFloat64() = v + } + } + } + case reflect.Bool: + switch { + case isSlice: // E.g., []bool + mfi.merge = func(dst, src pointer) { + sfsp := src.toBoolSlice() + if *sfsp != nil { + dfsp := dst.toBoolSlice() + *dfsp = append(*dfsp, *sfsp...) + if *dfsp == nil { + *dfsp = []bool{} + } + } + } + case isPointer: // E.g., *bool + mfi.merge = func(dst, src pointer) { + sfpp := src.toBoolPtr() + if *sfpp != nil { + dfpp := dst.toBoolPtr() + if *dfpp == nil { + *dfpp = Bool(**sfpp) + } else { + **dfpp = **sfpp + } + } + } + default: // E.g., bool + mfi.merge = func(dst, src pointer) { + if v := *src.toBool(); v { + *dst.toBool() = v + } + } + } + case reflect.String: + switch { + case isSlice: // E.g., []string + mfi.merge = func(dst, src pointer) { + sfsp := src.toStringSlice() + if *sfsp != nil { + dfsp := dst.toStringSlice() + *dfsp = append(*dfsp, *sfsp...) + if *dfsp == nil { + *dfsp = []string{} + } + } + } + case isPointer: // E.g., *string + mfi.merge = func(dst, src pointer) { + sfpp := src.toStringPtr() + if *sfpp != nil { + dfpp := dst.toStringPtr() + if *dfpp == nil { + *dfpp = String(**sfpp) + } else { + **dfpp = **sfpp + } + } + } + default: // E.g., string + mfi.merge = func(dst, src pointer) { + if v := *src.toString(); v != "" { + *dst.toString() = v + } + } + } + case reflect.Slice: + isProto3 := props.Prop[i].proto3 + switch { + case isPointer: + panic("bad pointer in byte slice case in " + tf.Name()) + case tf.Elem().Kind() != reflect.Uint8: + panic("bad element kind in byte slice case in " + tf.Name()) + case isSlice: // E.g., [][]byte + mfi.merge = func(dst, src pointer) { + sbsp := src.toBytesSlice() + if *sbsp != nil { + dbsp := dst.toBytesSlice() + for _, sb := range *sbsp { + if sb == nil { + *dbsp = append(*dbsp, nil) + } else { + *dbsp = append(*dbsp, append([]byte{}, sb...)) + } + } + if *dbsp == nil { + *dbsp = [][]byte{} + } + } + } + default: // E.g., []byte + mfi.merge = func(dst, src pointer) { + sbp := src.toBytes() + if *sbp != nil { + dbp := dst.toBytes() + if !isProto3 || len(*sbp) > 0 { + *dbp = append([]byte{}, *sbp...) + } + } + } + } + case reflect.Struct: + switch { + case !isPointer: + mergeInfo := getMergeInfo(tf) + mfi.merge = func(dst, src pointer) { + mergeInfo.merge(dst, src) + } + case isSlice: // E.g., []*pb.T + mergeInfo := getMergeInfo(tf) + mfi.merge = func(dst, src pointer) { + sps := src.getPointerSlice() + if sps != nil { + dps := dst.getPointerSlice() + for _, sp := range sps { + var dp pointer + if !sp.isNil() { + dp = valToPointer(reflect.New(tf)) + mergeInfo.merge(dp, sp) + } + dps = append(dps, dp) + } + if dps == nil { + dps = []pointer{} + } + dst.setPointerSlice(dps) + } + } + default: // E.g., *pb.T + mergeInfo := getMergeInfo(tf) + mfi.merge = func(dst, src pointer) { + sp := src.getPointer() + if !sp.isNil() { + dp := dst.getPointer() + if dp.isNil() { + dp = valToPointer(reflect.New(tf)) + dst.setPointer(dp) + } + mergeInfo.merge(dp, sp) + } + } + } + case reflect.Map: + switch { + case isPointer || isSlice: + panic("bad pointer or slice in map case in " + tf.Name()) + default: // E.g., map[K]V + mfi.merge = func(dst, src pointer) { + sm := src.asPointerTo(tf).Elem() + if sm.Len() == 0 { + return + } + dm := dst.asPointerTo(tf).Elem() + if dm.IsNil() { + dm.Set(reflect.MakeMap(tf)) + } + + switch tf.Elem().Kind() { + case reflect.Ptr: // Proto struct (e.g., *T) + for _, key := range sm.MapKeys() { + val := sm.MapIndex(key) + val = reflect.ValueOf(Clone(val.Interface().(Message))) + dm.SetMapIndex(key, val) + } + case reflect.Slice: // E.g. Bytes type (e.g., []byte) + for _, key := range sm.MapKeys() { + val := sm.MapIndex(key) + val = reflect.ValueOf(append([]byte{}, val.Bytes()...)) + dm.SetMapIndex(key, val) + } + default: // Basic type (e.g., string) + for _, key := range sm.MapKeys() { + val := sm.MapIndex(key) + dm.SetMapIndex(key, val) + } + } + } + } + case reflect.Interface: + // Must be oneof field. + switch { + case isPointer || isSlice: + panic("bad pointer or slice in interface case in " + tf.Name()) + default: // E.g., interface{} + // TODO: Make this faster? + mfi.merge = func(dst, src pointer) { + su := src.asPointerTo(tf).Elem() + if !su.IsNil() { + du := dst.asPointerTo(tf).Elem() + typ := su.Elem().Type() + if du.IsNil() || du.Elem().Type() != typ { + du.Set(reflect.New(typ.Elem())) // Initialize interface if empty + } + sv := su.Elem().Elem().Field(0) + if sv.Kind() == reflect.Ptr && sv.IsNil() { + return + } + dv := du.Elem().Elem().Field(0) + if dv.Kind() == reflect.Ptr && dv.IsNil() { + dv.Set(reflect.New(sv.Type().Elem())) // Initialize proto message if empty + } + switch sv.Type().Kind() { + case reflect.Ptr: // Proto struct (e.g., *T) + Merge(dv.Interface().(Message), sv.Interface().(Message)) + case reflect.Slice: // E.g. Bytes type (e.g., []byte) + dv.Set(reflect.ValueOf(append([]byte{}, sv.Bytes()...))) + default: // Basic type (e.g., string) + dv.Set(sv) + } + } + } + } + default: + panic(fmt.Sprintf("merger not found for type:%s", tf)) + } + mi.fields = append(mi.fields, mfi) + } + + mi.unrecognized = invalidField + if f, ok := t.FieldByName("XXX_unrecognized"); ok { + if f.Type != reflect.TypeOf([]byte{}) { + panic("expected XXX_unrecognized to be of type []byte") + } + mi.unrecognized = toField(&f) + } + + atomic.StoreInt32(&mi.initialized, 1) +} diff --git a/vendor/github.com/gogo/protobuf/proto/table_unmarshal.go b/vendor/github.com/gogo/protobuf/proto/table_unmarshal.go new file mode 100644 index 0000000..910e2dd --- /dev/null +++ b/vendor/github.com/gogo/protobuf/proto/table_unmarshal.go @@ -0,0 +1,2048 @@ +// Go support for Protocol Buffers - Google's data interchange format +// +// Copyright 2016 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 + +import ( + "errors" + "fmt" + "io" + "math" + "reflect" + "strconv" + "strings" + "sync" + "sync/atomic" + "unicode/utf8" +) + +// Unmarshal is the entry point from the generated .pb.go files. +// This function is not intended to be used by non-generated code. +// This function is not subject to any compatibility guarantee. +// msg contains a pointer to a protocol buffer struct. +// b is the data to be unmarshaled into the protocol buffer. +// a is a pointer to a place to store cached unmarshal information. +func (a *InternalMessageInfo) Unmarshal(msg Message, b []byte) error { + // Load the unmarshal information for this message type. + // The atomic load ensures memory consistency. + u := atomicLoadUnmarshalInfo(&a.unmarshal) + if u == nil { + // Slow path: find unmarshal info for msg, update a with it. + u = getUnmarshalInfo(reflect.TypeOf(msg).Elem()) + atomicStoreUnmarshalInfo(&a.unmarshal, u) + } + // Then do the unmarshaling. + err := u.unmarshal(toPointer(&msg), b) + return err +} + +type unmarshalInfo struct { + typ reflect.Type // type of the protobuf struct + + // 0 = only typ field is initialized + // 1 = completely initialized + initialized int32 + lock sync.Mutex // prevents double initialization + dense []unmarshalFieldInfo // fields indexed by tag # + sparse map[uint64]unmarshalFieldInfo // fields indexed by tag # + reqFields []string // names of required fields + reqMask uint64 // 1<<len(reqFields)-1 + unrecognized field // offset of []byte to put unrecognized data (or invalidField if we should throw it away) + extensions field // offset of extensions field (of type proto.XXX_InternalExtensions), or invalidField if it does not exist + oldExtensions field // offset of old-form extensions field (of type map[int]Extension) + extensionRanges []ExtensionRange // if non-nil, implies extensions field is valid + isMessageSet bool // if true, implies extensions field is valid + + bytesExtensions field // offset of XXX_extensions with type []byte +} + +// An unmarshaler takes a stream of bytes and a pointer to a field of a message. +// It decodes the field, stores it at f, and returns the unused bytes. +// w is the wire encoding. +// b is the data after the tag and wire encoding have been read. +type unmarshaler func(b []byte, f pointer, w int) ([]byte, error) + +type unmarshalFieldInfo struct { + // location of the field in the proto message structure. + field field + + // function to unmarshal the data for the field. + unmarshal unmarshaler + + // if a required field, contains a single set bit at this field's index in the required field list. + reqMask uint64 +} + +var ( + unmarshalInfoMap = map[reflect.Type]*unmarshalInfo{} + unmarshalInfoLock sync.Mutex +) + +// getUnmarshalInfo returns the data structure which can be +// subsequently used to unmarshal a message of the given type. +// t is the type of the message (note: not pointer to message). +func getUnmarshalInfo(t reflect.Type) *unmarshalInfo { + // It would be correct to return a new unmarshalInfo + // unconditionally. We would end up allocating one + // per occurrence of that type as a message or submessage. + // We use a cache here just to reduce memory usage. + unmarshalInfoLock.Lock() + defer unmarshalInfoLock.Unlock() + u := unmarshalInfoMap[t] + if u == nil { + u = &unmarshalInfo{typ: t} + // Note: we just set the type here. The rest of the fields + // will be initialized on first use. + unmarshalInfoMap[t] = u + } + return u +} + +// unmarshal does the main work of unmarshaling a message. +// u provides type information used to unmarshal the message. +// m is a pointer to a protocol buffer message. +// b is a byte stream to unmarshal into m. +// This is top routine used when recursively unmarshaling submessages. +func (u *unmarshalInfo) unmarshal(m pointer, b []byte) error { + if atomic.LoadInt32(&u.initialized) == 0 { + u.computeUnmarshalInfo() + } + if u.isMessageSet { + return UnmarshalMessageSet(b, m.offset(u.extensions).toExtensions()) + } + var reqMask uint64 // bitmask of required fields we've seen. + var rnse *RequiredNotSetError // an instance of a RequiredNotSetError returned by a submessage. + for len(b) > 0 { + // Read tag and wire type. + // Special case 1 and 2 byte varints. + var x uint64 + if b[0] < 128 { + x = uint64(b[0]) + b = b[1:] + } else if len(b) >= 2 && b[1] < 128 { + x = uint64(b[0]&0x7f) + uint64(b[1])<<7 + b = b[2:] + } else { + var n int + x, n = decodeVarint(b) + if n == 0 { + return io.ErrUnexpectedEOF + } + b = b[n:] + } + tag := x >> 3 + wire := int(x) & 7 + + // Dispatch on the tag to one of the unmarshal* functions below. + var f unmarshalFieldInfo + if tag < uint64(len(u.dense)) { + f = u.dense[tag] + } else { + f = u.sparse[tag] + } + if fn := f.unmarshal; fn != nil { + var err error + b, err = fn(b, m.offset(f.field), wire) + if err == nil { + reqMask |= f.reqMask + continue + } + if r, ok := err.(*RequiredNotSetError); ok { + // Remember this error, but keep parsing. We need to produce + // a full parse even if a required field is missing. + rnse = r + reqMask |= f.reqMask + continue + } + if err != errInternalBadWireType { + return err + } + // Fragments with bad wire type are treated as unknown fields. + } + + // Unknown tag. + if !u.unrecognized.IsValid() { + // Don't keep unrecognized data; just skip it. + var err error + b, err = skipField(b, wire) + if err != nil { + return err + } + continue + } + // Keep unrecognized data around. + // maybe in extensions, maybe in the unrecognized field. + z := m.offset(u.unrecognized).toBytes() + var emap map[int32]Extension + var e Extension + for _, r := range u.extensionRanges { + if uint64(r.Start) <= tag && tag <= uint64(r.End) { + if u.extensions.IsValid() { + mp := m.offset(u.extensions).toExtensions() + emap = mp.extensionsWrite() + e = emap[int32(tag)] + z = &e.enc + break + } + if u.oldExtensions.IsValid() { + p := m.offset(u.oldExtensions).toOldExtensions() + emap = *p + if emap == nil { + emap = map[int32]Extension{} + *p = emap + } + e = emap[int32(tag)] + z = &e.enc + break + } + if u.bytesExtensions.IsValid() { + z = m.offset(u.bytesExtensions).toBytes() + break + } + panic("no extensions field available") + } + } + // Use wire type to skip data. + var err error + b0 := b + b, err = skipField(b, wire) + if err != nil { + return err + } + *z = encodeVarint(*z, tag<<3|uint64(wire)) + *z = append(*z, b0[:len(b0)-len(b)]...) + + if emap != nil { + emap[int32(tag)] = e + } + } + if rnse != nil { + // A required field of a submessage/group is missing. Return that error. + return rnse + } + if reqMask != u.reqMask { + // A required field of this message is missing. + for _, n := range u.reqFields { + if reqMask&1 == 0 { + return &RequiredNotSetError{n} + } + reqMask >>= 1 + } + } + return nil +} + +// computeUnmarshalInfo fills in u with information for use +// in unmarshaling protocol buffers of type u.typ. +func (u *unmarshalInfo) computeUnmarshalInfo() { + u.lock.Lock() + defer u.lock.Unlock() + if u.initialized != 0 { + return + } + t := u.typ + n := t.NumField() + + // Set up the "not found" value for the unrecognized byte buffer. + // This is the default for proto3. + u.unrecognized = invalidField + u.extensions = invalidField + u.oldExtensions = invalidField + u.bytesExtensions = invalidField + + // List of the generated type and offset for each oneof field. + type oneofField struct { + ityp reflect.Type // interface type of oneof field + field field // offset in containing message + } + var oneofFields []oneofField + + for i := 0; i < n; i++ { + f := t.Field(i) + if f.Name == "XXX_unrecognized" { + // The byte slice used to hold unrecognized input is special. + if f.Type != reflect.TypeOf(([]byte)(nil)) { + panic("bad type for XXX_unrecognized field: " + f.Type.Name()) + } + u.unrecognized = toField(&f) + continue + } + if f.Name == "XXX_InternalExtensions" { + // Ditto here. + if f.Type != reflect.TypeOf(XXX_InternalExtensions{}) { + panic("bad type for XXX_InternalExtensions field: " + f.Type.Name()) + } + u.extensions = toField(&f) + if f.Tag.Get("protobuf_messageset") == "1" { + u.isMessageSet = true + } + continue + } + if f.Name == "XXX_extensions" { + // An older form of the extensions field. + if f.Type == reflect.TypeOf((map[int32]Extension)(nil)) { + u.oldExtensions = toField(&f) + continue + } else if f.Type == reflect.TypeOf(([]byte)(nil)) { + u.bytesExtensions = toField(&f) + continue + } + panic("bad type for XXX_extensions field: " + f.Type.Name()) + } + if f.Name == "XXX_NoUnkeyedLiteral" || f.Name == "XXX_sizecache" { + continue + } + + oneof := f.Tag.Get("protobuf_oneof") + if oneof != "" { + oneofFields = append(oneofFields, oneofField{f.Type, toField(&f)}) + // The rest of oneof processing happens below. + continue + } + + tags := f.Tag.Get("protobuf") + tagArray := strings.Split(tags, ",") + if len(tagArray) < 2 { + panic("protobuf tag not enough fields in " + t.Name() + "." + f.Name + ": " + tags) + } + tag, err := strconv.Atoi(tagArray[1]) + if err != nil { + panic("protobuf tag field not an integer: " + tagArray[1]) + } + + name := "" + for _, tag := range tagArray[3:] { + if strings.HasPrefix(tag, "name=") { + name = tag[5:] + } + } + + // Extract unmarshaling function from the field (its type and tags). + unmarshal := fieldUnmarshaler(&f) + + // Required field? + var reqMask uint64 + if tagArray[2] == "req" { + bit := len(u.reqFields) + u.reqFields = append(u.reqFields, name) + reqMask = uint64(1) << uint(bit) + // TODO: if we have more than 64 required fields, we end up + // not verifying that all required fields are present. + // Fix this, perhaps using a count of required fields? + } + + // Store the info in the correct slot in the message. + u.setTag(tag, toField(&f), unmarshal, reqMask) + } + + // Find any types associated with oneof fields. + // TODO: XXX_OneofFuncs returns more info than we need. Get rid of some of it? + fn := reflect.Zero(reflect.PtrTo(t)).MethodByName("XXX_OneofFuncs") + // gogo: len(oneofFields) > 0 is needed for embedded oneof messages, without a marshaler and unmarshaler + if fn.IsValid() && len(oneofFields) > 0 { + res := fn.Call(nil)[3] // last return value from XXX_OneofFuncs: []interface{} + for i := res.Len() - 1; i >= 0; i-- { + v := res.Index(i) // interface{} + tptr := reflect.ValueOf(v.Interface()).Type() // *Msg_X + typ := tptr.Elem() // Msg_X + + f := typ.Field(0) // oneof implementers have one field + baseUnmarshal := fieldUnmarshaler(&f) + tagstr := strings.Split(f.Tag.Get("protobuf"), ",")[1] + tag, err := strconv.Atoi(tagstr) + if err != nil { + panic("protobuf tag field not an integer: " + tagstr) + } + + // Find the oneof field that this struct implements. + // Might take O(n^2) to process all of the oneofs, but who cares. + for _, of := range oneofFields { + if tptr.Implements(of.ityp) { + // We have found the corresponding interface for this struct. + // That lets us know where this struct should be stored + // when we encounter it during unmarshaling. + unmarshal := makeUnmarshalOneof(typ, of.ityp, baseUnmarshal) + u.setTag(tag, of.field, unmarshal, 0) + } + } + } + } + + // Get extension ranges, if any. + fn = reflect.Zero(reflect.PtrTo(t)).MethodByName("ExtensionRangeArray") + if fn.IsValid() { + if !u.extensions.IsValid() && !u.oldExtensions.IsValid() && !u.bytesExtensions.IsValid() { + panic("a message with extensions, but no extensions field in " + t.Name()) + } + u.extensionRanges = fn.Call(nil)[0].Interface().([]ExtensionRange) + } + + // Explicitly disallow tag 0. This will ensure we flag an error + // when decoding a buffer of all zeros. Without this code, we + // would decode and skip an all-zero buffer of even length. + // [0 0] is [tag=0/wiretype=varint varint-encoded-0]. + u.setTag(0, zeroField, func(b []byte, f pointer, w int) ([]byte, error) { + return nil, fmt.Errorf("proto: %s: illegal tag 0 (wire type %d)", t, w) + }, 0) + + // Set mask for required field check. + u.reqMask = uint64(1)<<uint(len(u.reqFields)) - 1 + + atomic.StoreInt32(&u.initialized, 1) +} + +// setTag stores the unmarshal information for the given tag. +// tag = tag # for field +// field/unmarshal = unmarshal info for that field. +// reqMask = if required, bitmask for field position in required field list. 0 otherwise. +func (u *unmarshalInfo) setTag(tag int, field field, unmarshal unmarshaler, reqMask uint64) { + i := unmarshalFieldInfo{field: field, unmarshal: unmarshal, reqMask: reqMask} + n := u.typ.NumField() + if tag >= 0 && (tag < 16 || tag < 2*n) { // TODO: what are the right numbers here? + for len(u.dense) <= tag { + u.dense = append(u.dense, unmarshalFieldInfo{}) + } + u.dense[tag] = i + return + } + if u.sparse == nil { + u.sparse = map[uint64]unmarshalFieldInfo{} + } + u.sparse[uint64(tag)] = i +} + +// fieldUnmarshaler returns an unmarshaler for the given field. +func fieldUnmarshaler(f *reflect.StructField) unmarshaler { + if f.Type.Kind() == reflect.Map { + return makeUnmarshalMap(f) + } + return typeUnmarshaler(f.Type, f.Tag.Get("protobuf")) +} + +// typeUnmarshaler returns an unmarshaler for the given field type / field tag pair. +func typeUnmarshaler(t reflect.Type, tags string) unmarshaler { + tagArray := strings.Split(tags, ",") + encoding := tagArray[0] + name := "unknown" + ctype := false + isTime := false + isDuration := false + for _, tag := range tagArray[3:] { + if strings.HasPrefix(tag, "name=") { + name = tag[5:] + } + if strings.HasPrefix(tag, "customtype=") { + ctype = true + } + if tag == "stdtime" { + isTime = true + } + if tag == "stdduration" { + isDuration = true + } + } + + // Figure out packaging (pointer, slice, or both) + slice := false + pointer := false + if t.Kind() == reflect.Slice && t.Elem().Kind() != reflect.Uint8 { + slice = true + t = t.Elem() + } + if t.Kind() == reflect.Ptr { + pointer = true + t = t.Elem() + } + + if ctype { + if reflect.PtrTo(t).Implements(customType) { + if slice { + return makeUnmarshalCustomSlice(getUnmarshalInfo(t), name) + } + if pointer { + return makeUnmarshalCustomPtr(getUnmarshalInfo(t), name) + } + return makeUnmarshalCustom(getUnmarshalInfo(t), name) + } else { + panic(fmt.Sprintf("custom type: type: %v, does not implement the proto.custom interface", t)) + } + } + + if isTime { + if pointer { + if slice { + return makeUnmarshalTimePtrSlice(getUnmarshalInfo(t), name) + } + return makeUnmarshalTimePtr(getUnmarshalInfo(t), name) + } + if slice { + return makeUnmarshalTimeSlice(getUnmarshalInfo(t), name) + } + return makeUnmarshalTime(getUnmarshalInfo(t), name) + } + + if isDuration { + if pointer { + if slice { + return makeUnmarshalDurationPtrSlice(getUnmarshalInfo(t), name) + } + return makeUnmarshalDurationPtr(getUnmarshalInfo(t), name) + } + if slice { + return makeUnmarshalDurationSlice(getUnmarshalInfo(t), name) + } + return makeUnmarshalDuration(getUnmarshalInfo(t), name) + } + + // We'll never have both pointer and slice for basic types. + if pointer && slice && t.Kind() != reflect.Struct { + panic("both pointer and slice for basic type in " + t.Name()) + } + + switch t.Kind() { + case reflect.Bool: + if pointer { + return unmarshalBoolPtr + } + if slice { + return unmarshalBoolSlice + } + return unmarshalBoolValue + case reflect.Int32: + switch encoding { + case "fixed32": + if pointer { + return unmarshalFixedS32Ptr + } + if slice { + return unmarshalFixedS32Slice + } + return unmarshalFixedS32Value + case "varint": + // this could be int32 or enum + if pointer { + return unmarshalInt32Ptr + } + if slice { + return unmarshalInt32Slice + } + return unmarshalInt32Value + case "zigzag32": + if pointer { + return unmarshalSint32Ptr + } + if slice { + return unmarshalSint32Slice + } + return unmarshalSint32Value + } + case reflect.Int64: + switch encoding { + case "fixed64": + if pointer { + return unmarshalFixedS64Ptr + } + if slice { + return unmarshalFixedS64Slice + } + return unmarshalFixedS64Value + case "varint": + if pointer { + return unmarshalInt64Ptr + } + if slice { + return unmarshalInt64Slice + } + return unmarshalInt64Value + case "zigzag64": + if pointer { + return unmarshalSint64Ptr + } + if slice { + return unmarshalSint64Slice + } + return unmarshalSint64Value + } + case reflect.Uint32: + switch encoding { + case "fixed32": + if pointer { + return unmarshalFixed32Ptr + } + if slice { + return unmarshalFixed32Slice + } + return unmarshalFixed32Value + case "varint": + if pointer { + return unmarshalUint32Ptr + } + if slice { + return unmarshalUint32Slice + } + return unmarshalUint32Value + } + case reflect.Uint64: + switch encoding { + case "fixed64": + if pointer { + return unmarshalFixed64Ptr + } + if slice { + return unmarshalFixed64Slice + } + return unmarshalFixed64Value + case "varint": + if pointer { + return unmarshalUint64Ptr + } + if slice { + return unmarshalUint64Slice + } + return unmarshalUint64Value + } + case reflect.Float32: + if pointer { + return unmarshalFloat32Ptr + } + if slice { + return unmarshalFloat32Slice + } + return unmarshalFloat32Value + case reflect.Float64: + if pointer { + return unmarshalFloat64Ptr + } + if slice { + return unmarshalFloat64Slice + } + return unmarshalFloat64Value + case reflect.Map: + panic("map type in typeUnmarshaler in " + t.Name()) + case reflect.Slice: + if pointer { + panic("bad pointer in slice case in " + t.Name()) + } + if slice { + return unmarshalBytesSlice + } + return unmarshalBytesValue + case reflect.String: + if pointer { + return unmarshalStringPtr + } + if slice { + return unmarshalStringSlice + } + return unmarshalStringValue + case reflect.Struct: + // message or group field + if !pointer { + switch encoding { + case "bytes": + if slice { + return makeUnmarshalMessageSlice(getUnmarshalInfo(t), name) + } + return makeUnmarshalMessage(getUnmarshalInfo(t), name) + } + } + switch encoding { + case "bytes": + if slice { + return makeUnmarshalMessageSlicePtr(getUnmarshalInfo(t), name) + } + return makeUnmarshalMessagePtr(getUnmarshalInfo(t), name) + case "group": + if slice { + return makeUnmarshalGroupSlicePtr(getUnmarshalInfo(t), name) + } + return makeUnmarshalGroupPtr(getUnmarshalInfo(t), name) + } + } + panic(fmt.Sprintf("unmarshaler not found type:%s encoding:%s", t, encoding)) +} + +// Below are all the unmarshalers for individual fields of various types. + +func unmarshalInt64Value(b []byte, f pointer, w int) ([]byte, error) { + if w != WireVarint { + return b, errInternalBadWireType + } + x, n := decodeVarint(b) + if n == 0 { + return nil, io.ErrUnexpectedEOF + } + b = b[n:] + v := int64(x) + *f.toInt64() = v + return b, nil +} + +func unmarshalInt64Ptr(b []byte, f pointer, w int) ([]byte, error) { + if w != WireVarint { + return b, errInternalBadWireType + } + x, n := decodeVarint(b) + if n == 0 { + return nil, io.ErrUnexpectedEOF + } + b = b[n:] + v := int64(x) + *f.toInt64Ptr() = &v + return b, nil +} + +func unmarshalInt64Slice(b []byte, f pointer, w int) ([]byte, error) { + if w == WireBytes { // packed + x, n := decodeVarint(b) + if n == 0 { + return nil, io.ErrUnexpectedEOF + } + b = b[n:] + if x > uint64(len(b)) { + return nil, io.ErrUnexpectedEOF + } + res := b[x:] + b = b[:x] + for len(b) > 0 { + x, n = decodeVarint(b) + if n == 0 { + return nil, io.ErrUnexpectedEOF + } + b = b[n:] + v := int64(x) + s := f.toInt64Slice() + *s = append(*s, v) + } + return res, nil + } + if w != WireVarint { + return b, errInternalBadWireType + } + x, n := decodeVarint(b) + if n == 0 { + return nil, io.ErrUnexpectedEOF + } + b = b[n:] + v := int64(x) + s := f.toInt64Slice() + *s = append(*s, v) + return b, nil +} + +func unmarshalSint64Value(b []byte, f pointer, w int) ([]byte, error) { + if w != WireVarint { + return b, errInternalBadWireType + } + x, n := decodeVarint(b) + if n == 0 { + return nil, io.ErrUnexpectedEOF + } + b = b[n:] + v := int64(x>>1) ^ int64(x)<<63>>63 + *f.toInt64() = v + return b, nil +} + +func unmarshalSint64Ptr(b []byte, f pointer, w int) ([]byte, error) { + if w != WireVarint { + return b, errInternalBadWireType + } + x, n := decodeVarint(b) + if n == 0 { + return nil, io.ErrUnexpectedEOF + } + b = b[n:] + v := int64(x>>1) ^ int64(x)<<63>>63 + *f.toInt64Ptr() = &v + return b, nil +} + +func unmarshalSint64Slice(b []byte, f pointer, w int) ([]byte, error) { + if w == WireBytes { // packed + x, n := decodeVarint(b) + if n == 0 { + return nil, io.ErrUnexpectedEOF + } + b = b[n:] + if x > uint64(len(b)) { + return nil, io.ErrUnexpectedEOF + } + res := b[x:] + b = b[:x] + for len(b) > 0 { + x, n = decodeVarint(b) + if n == 0 { + return nil, io.ErrUnexpectedEOF + } + b = b[n:] + v := int64(x>>1) ^ int64(x)<<63>>63 + s := f.toInt64Slice() + *s = append(*s, v) + } + return res, nil + } + if w != WireVarint { + return b, errInternalBadWireType + } + x, n := decodeVarint(b) + if n == 0 { + return nil, io.ErrUnexpectedEOF + } + b = b[n:] + v := int64(x>>1) ^ int64(x)<<63>>63 + s := f.toInt64Slice() + *s = append(*s, v) + return b, nil +} + +func unmarshalUint64Value(b []byte, f pointer, w int) ([]byte, error) { + if w != WireVarint { + return b, errInternalBadWireType + } + x, n := decodeVarint(b) + if n == 0 { + return nil, io.ErrUnexpectedEOF + } + b = b[n:] + v := uint64(x) + *f.toUint64() = v + return b, nil +} + +func unmarshalUint64Ptr(b []byte, f pointer, w int) ([]byte, error) { + if w != WireVarint { + return b, errInternalBadWireType + } + x, n := decodeVarint(b) + if n == 0 { + return nil, io.ErrUnexpectedEOF + } + b = b[n:] + v := uint64(x) + *f.toUint64Ptr() = &v + return b, nil +} + +func unmarshalUint64Slice(b []byte, f pointer, w int) ([]byte, error) { + if w == WireBytes { // packed + x, n := decodeVarint(b) + if n == 0 { + return nil, io.ErrUnexpectedEOF + } + b = b[n:] + if x > uint64(len(b)) { + return nil, io.ErrUnexpectedEOF + } + res := b[x:] + b = b[:x] + for len(b) > 0 { + x, n = decodeVarint(b) + if n == 0 { + return nil, io.ErrUnexpectedEOF + } + b = b[n:] + v := uint64(x) + s := f.toUint64Slice() + *s = append(*s, v) + } + return res, nil + } + if w != WireVarint { + return b, errInternalBadWireType + } + x, n := decodeVarint(b) + if n == 0 { + return nil, io.ErrUnexpectedEOF + } + b = b[n:] + v := uint64(x) + s := f.toUint64Slice() + *s = append(*s, v) + return b, nil +} + +func unmarshalInt32Value(b []byte, f pointer, w int) ([]byte, error) { + if w != WireVarint { + return b, errInternalBadWireType + } + x, n := decodeVarint(b) + if n == 0 { + return nil, io.ErrUnexpectedEOF + } + b = b[n:] + v := int32(x) + *f.toInt32() = v + return b, nil +} + +func unmarshalInt32Ptr(b []byte, f pointer, w int) ([]byte, error) { + if w != WireVarint { + return b, errInternalBadWireType + } + x, n := decodeVarint(b) + if n == 0 { + return nil, io.ErrUnexpectedEOF + } + b = b[n:] + v := int32(x) + f.setInt32Ptr(v) + return b, nil +} + +func unmarshalInt32Slice(b []byte, f pointer, w int) ([]byte, error) { + if w == WireBytes { // packed + x, n := decodeVarint(b) + if n == 0 { + return nil, io.ErrUnexpectedEOF + } + b = b[n:] + if x > uint64(len(b)) { + return nil, io.ErrUnexpectedEOF + } + res := b[x:] + b = b[:x] + for len(b) > 0 { + x, n = decodeVarint(b) + if n == 0 { + return nil, io.ErrUnexpectedEOF + } + b = b[n:] + v := int32(x) + f.appendInt32Slice(v) + } + return res, nil + } + if w != WireVarint { + return b, errInternalBadWireType + } + x, n := decodeVarint(b) + if n == 0 { + return nil, io.ErrUnexpectedEOF + } + b = b[n:] + v := int32(x) + f.appendInt32Slice(v) + return b, nil +} + +func unmarshalSint32Value(b []byte, f pointer, w int) ([]byte, error) { + if w != WireVarint { + return b, errInternalBadWireType + } + x, n := decodeVarint(b) + if n == 0 { + return nil, io.ErrUnexpectedEOF + } + b = b[n:] + v := int32(x>>1) ^ int32(x)<<31>>31 + *f.toInt32() = v + return b, nil +} + +func unmarshalSint32Ptr(b []byte, f pointer, w int) ([]byte, error) { + if w != WireVarint { + return b, errInternalBadWireType + } + x, n := decodeVarint(b) + if n == 0 { + return nil, io.ErrUnexpectedEOF + } + b = b[n:] + v := int32(x>>1) ^ int32(x)<<31>>31 + f.setInt32Ptr(v) + return b, nil +} + +func unmarshalSint32Slice(b []byte, f pointer, w int) ([]byte, error) { + if w == WireBytes { // packed + x, n := decodeVarint(b) + if n == 0 { + return nil, io.ErrUnexpectedEOF + } + b = b[n:] + if x > uint64(len(b)) { + return nil, io.ErrUnexpectedEOF + } + res := b[x:] + b = b[:x] + for len(b) > 0 { + x, n = decodeVarint(b) + if n == 0 { + return nil, io.ErrUnexpectedEOF + } + b = b[n:] + v := int32(x>>1) ^ int32(x)<<31>>31 + f.appendInt32Slice(v) + } + return res, nil + } + if w != WireVarint { + return b, errInternalBadWireType + } + x, n := decodeVarint(b) + if n == 0 { + return nil, io.ErrUnexpectedEOF + } + b = b[n:] + v := int32(x>>1) ^ int32(x)<<31>>31 + f.appendInt32Slice(v) + return b, nil +} + +func unmarshalUint32Value(b []byte, f pointer, w int) ([]byte, error) { + if w != WireVarint { + return b, errInternalBadWireType + } + x, n := decodeVarint(b) + if n == 0 { + return nil, io.ErrUnexpectedEOF + } + b = b[n:] + v := uint32(x) + *f.toUint32() = v + return b, nil +} + +func unmarshalUint32Ptr(b []byte, f pointer, w int) ([]byte, error) { + if w != WireVarint { + return b, errInternalBadWireType + } + x, n := decodeVarint(b) + if n == 0 { + return nil, io.ErrUnexpectedEOF + } + b = b[n:] + v := uint32(x) + *f.toUint32Ptr() = &v + return b, nil +} + +func unmarshalUint32Slice(b []byte, f pointer, w int) ([]byte, error) { + if w == WireBytes { // packed + x, n := decodeVarint(b) + if n == 0 { + return nil, io.ErrUnexpectedEOF + } + b = b[n:] + if x > uint64(len(b)) { + return nil, io.ErrUnexpectedEOF + } + res := b[x:] + b = b[:x] + for len(b) > 0 { + x, n = decodeVarint(b) + if n == 0 { + return nil, io.ErrUnexpectedEOF + } + b = b[n:] + v := uint32(x) + s := f.toUint32Slice() + *s = append(*s, v) + } + return res, nil + } + if w != WireVarint { + return b, errInternalBadWireType + } + x, n := decodeVarint(b) + if n == 0 { + return nil, io.ErrUnexpectedEOF + } + b = b[n:] + v := uint32(x) + s := f.toUint32Slice() + *s = append(*s, v) + return b, nil +} + +func unmarshalFixed64Value(b []byte, f pointer, w int) ([]byte, error) { + if w != WireFixed64 { + return b, errInternalBadWireType + } + if len(b) < 8 { + return nil, io.ErrUnexpectedEOF + } + v := uint64(b[0]) | uint64(b[1])<<8 | uint64(b[2])<<16 | uint64(b[3])<<24 | uint64(b[4])<<32 | uint64(b[5])<<40 | uint64(b[6])<<48 | uint64(b[7])<<56 + *f.toUint64() = v + return b[8:], nil +} + +func unmarshalFixed64Ptr(b []byte, f pointer, w int) ([]byte, error) { + if w != WireFixed64 { + return b, errInternalBadWireType + } + if len(b) < 8 { + return nil, io.ErrUnexpectedEOF + } + v := uint64(b[0]) | uint64(b[1])<<8 | uint64(b[2])<<16 | uint64(b[3])<<24 | uint64(b[4])<<32 | uint64(b[5])<<40 | uint64(b[6])<<48 | uint64(b[7])<<56 + *f.toUint64Ptr() = &v + return b[8:], nil +} + +func unmarshalFixed64Slice(b []byte, f pointer, w int) ([]byte, error) { + if w == WireBytes { // packed + x, n := decodeVarint(b) + if n == 0 { + return nil, io.ErrUnexpectedEOF + } + b = b[n:] + if x > uint64(len(b)) { + return nil, io.ErrUnexpectedEOF + } + res := b[x:] + b = b[:x] + for len(b) > 0 { + if len(b) < 8 { + return nil, io.ErrUnexpectedEOF + } + v := uint64(b[0]) | uint64(b[1])<<8 | uint64(b[2])<<16 | uint64(b[3])<<24 | uint64(b[4])<<32 | uint64(b[5])<<40 | uint64(b[6])<<48 | uint64(b[7])<<56 + s := f.toUint64Slice() + *s = append(*s, v) + b = b[8:] + } + return res, nil + } + if w != WireFixed64 { + return b, errInternalBadWireType + } + if len(b) < 8 { + return nil, io.ErrUnexpectedEOF + } + v := uint64(b[0]) | uint64(b[1])<<8 | uint64(b[2])<<16 | uint64(b[3])<<24 | uint64(b[4])<<32 | uint64(b[5])<<40 | uint64(b[6])<<48 | uint64(b[7])<<56 + s := f.toUint64Slice() + *s = append(*s, v) + return b[8:], nil +} + +func unmarshalFixedS64Value(b []byte, f pointer, w int) ([]byte, error) { + if w != WireFixed64 { + return b, errInternalBadWireType + } + if len(b) < 8 { + return nil, io.ErrUnexpectedEOF + } + v := int64(b[0]) | int64(b[1])<<8 | int64(b[2])<<16 | int64(b[3])<<24 | int64(b[4])<<32 | int64(b[5])<<40 | int64(b[6])<<48 | int64(b[7])<<56 + *f.toInt64() = v + return b[8:], nil +} + +func unmarshalFixedS64Ptr(b []byte, f pointer, w int) ([]byte, error) { + if w != WireFixed64 { + return b, errInternalBadWireType + } + if len(b) < 8 { + return nil, io.ErrUnexpectedEOF + } + v := int64(b[0]) | int64(b[1])<<8 | int64(b[2])<<16 | int64(b[3])<<24 | int64(b[4])<<32 | int64(b[5])<<40 | int64(b[6])<<48 | int64(b[7])<<56 + *f.toInt64Ptr() = &v + return b[8:], nil +} + +func unmarshalFixedS64Slice(b []byte, f pointer, w int) ([]byte, error) { + if w == WireBytes { // packed + x, n := decodeVarint(b) + if n == 0 { + return nil, io.ErrUnexpectedEOF + } + b = b[n:] + if x > uint64(len(b)) { + return nil, io.ErrUnexpectedEOF + } + res := b[x:] + b = b[:x] + for len(b) > 0 { + if len(b) < 8 { + return nil, io.ErrUnexpectedEOF + } + v := int64(b[0]) | int64(b[1])<<8 | int64(b[2])<<16 | int64(b[3])<<24 | int64(b[4])<<32 | int64(b[5])<<40 | int64(b[6])<<48 | int64(b[7])<<56 + s := f.toInt64Slice() + *s = append(*s, v) + b = b[8:] + } + return res, nil + } + if w != WireFixed64 { + return b, errInternalBadWireType + } + if len(b) < 8 { + return nil, io.ErrUnexpectedEOF + } + v := int64(b[0]) | int64(b[1])<<8 | int64(b[2])<<16 | int64(b[3])<<24 | int64(b[4])<<32 | int64(b[5])<<40 | int64(b[6])<<48 | int64(b[7])<<56 + s := f.toInt64Slice() + *s = append(*s, v) + return b[8:], nil +} + +func unmarshalFixed32Value(b []byte, f pointer, w int) ([]byte, error) { + if w != WireFixed32 { + return b, errInternalBadWireType + } + if len(b) < 4 { + return nil, io.ErrUnexpectedEOF + } + v := uint32(b[0]) | uint32(b[1])<<8 | uint32(b[2])<<16 | uint32(b[3])<<24 + *f.toUint32() = v + return b[4:], nil +} + +func unmarshalFixed32Ptr(b []byte, f pointer, w int) ([]byte, error) { + if w != WireFixed32 { + return b, errInternalBadWireType + } + if len(b) < 4 { + return nil, io.ErrUnexpectedEOF + } + v := uint32(b[0]) | uint32(b[1])<<8 | uint32(b[2])<<16 | uint32(b[3])<<24 + *f.toUint32Ptr() = &v + return b[4:], nil +} + +func unmarshalFixed32Slice(b []byte, f pointer, w int) ([]byte, error) { + if w == WireBytes { // packed + x, n := decodeVarint(b) + if n == 0 { + return nil, io.ErrUnexpectedEOF + } + b = b[n:] + if x > uint64(len(b)) { + return nil, io.ErrUnexpectedEOF + } + res := b[x:] + b = b[:x] + for len(b) > 0 { + if len(b) < 4 { + return nil, io.ErrUnexpectedEOF + } + v := uint32(b[0]) | uint32(b[1])<<8 | uint32(b[2])<<16 | uint32(b[3])<<24 + s := f.toUint32Slice() + *s = append(*s, v) + b = b[4:] + } + return res, nil + } + if w != WireFixed32 { + return b, errInternalBadWireType + } + if len(b) < 4 { + return nil, io.ErrUnexpectedEOF + } + v := uint32(b[0]) | uint32(b[1])<<8 | uint32(b[2])<<16 | uint32(b[3])<<24 + s := f.toUint32Slice() + *s = append(*s, v) + return b[4:], nil +} + +func unmarshalFixedS32Value(b []byte, f pointer, w int) ([]byte, error) { + if w != WireFixed32 { + return b, errInternalBadWireType + } + if len(b) < 4 { + return nil, io.ErrUnexpectedEOF + } + v := int32(b[0]) | int32(b[1])<<8 | int32(b[2])<<16 | int32(b[3])<<24 + *f.toInt32() = v + return b[4:], nil +} + +func unmarshalFixedS32Ptr(b []byte, f pointer, w int) ([]byte, error) { + if w != WireFixed32 { + return b, errInternalBadWireType + } + if len(b) < 4 { + return nil, io.ErrUnexpectedEOF + } + v := int32(b[0]) | int32(b[1])<<8 | int32(b[2])<<16 | int32(b[3])<<24 + f.setInt32Ptr(v) + return b[4:], nil +} + +func unmarshalFixedS32Slice(b []byte, f pointer, w int) ([]byte, error) { + if w == WireBytes { // packed + x, n := decodeVarint(b) + if n == 0 { + return nil, io.ErrUnexpectedEOF + } + b = b[n:] + if x > uint64(len(b)) { + return nil, io.ErrUnexpectedEOF + } + res := b[x:] + b = b[:x] + for len(b) > 0 { + if len(b) < 4 { + return nil, io.ErrUnexpectedEOF + } + v := int32(b[0]) | int32(b[1])<<8 | int32(b[2])<<16 | int32(b[3])<<24 + f.appendInt32Slice(v) + b = b[4:] + } + return res, nil + } + if w != WireFixed32 { + return b, errInternalBadWireType + } + if len(b) < 4 { + return nil, io.ErrUnexpectedEOF + } + v := int32(b[0]) | int32(b[1])<<8 | int32(b[2])<<16 | int32(b[3])<<24 + f.appendInt32Slice(v) + return b[4:], nil +} + +func unmarshalBoolValue(b []byte, f pointer, w int) ([]byte, error) { + if w != WireVarint { + return b, errInternalBadWireType + } + // Note: any length varint is allowed, even though any sane + // encoder will use one byte. + // See https://github.com/golang/protobuf/issues/76 + x, n := decodeVarint(b) + if n == 0 { + return nil, io.ErrUnexpectedEOF + } + // TODO: check if x>1? Tests seem to indicate no. + v := x != 0 + *f.toBool() = v + return b[n:], nil +} + +func unmarshalBoolPtr(b []byte, f pointer, w int) ([]byte, error) { + if w != WireVarint { + return b, errInternalBadWireType + } + x, n := decodeVarint(b) + if n == 0 { + return nil, io.ErrUnexpectedEOF + } + v := x != 0 + *f.toBoolPtr() = &v + return b[n:], nil +} + +func unmarshalBoolSlice(b []byte, f pointer, w int) ([]byte, error) { + if w == WireBytes { // packed + x, n := decodeVarint(b) + if n == 0 { + return nil, io.ErrUnexpectedEOF + } + b = b[n:] + if x > uint64(len(b)) { + return nil, io.ErrUnexpectedEOF + } + res := b[x:] + b = b[:x] + for len(b) > 0 { + x, n = decodeVarint(b) + if n == 0 { + return nil, io.ErrUnexpectedEOF + } + v := x != 0 + s := f.toBoolSlice() + *s = append(*s, v) + b = b[n:] + } + return res, nil + } + if w != WireVarint { + return b, errInternalBadWireType + } + x, n := decodeVarint(b) + if n == 0 { + return nil, io.ErrUnexpectedEOF + } + v := x != 0 + s := f.toBoolSlice() + *s = append(*s, v) + return b[n:], nil +} + +func unmarshalFloat64Value(b []byte, f pointer, w int) ([]byte, error) { + if w != WireFixed64 { + return b, errInternalBadWireType + } + if len(b) < 8 { + return nil, io.ErrUnexpectedEOF + } + v := math.Float64frombits(uint64(b[0]) | uint64(b[1])<<8 | uint64(b[2])<<16 | uint64(b[3])<<24 | uint64(b[4])<<32 | uint64(b[5])<<40 | uint64(b[6])<<48 | uint64(b[7])<<56) + *f.toFloat64() = v + return b[8:], nil +} + +func unmarshalFloat64Ptr(b []byte, f pointer, w int) ([]byte, error) { + if w != WireFixed64 { + return b, errInternalBadWireType + } + if len(b) < 8 { + return nil, io.ErrUnexpectedEOF + } + v := math.Float64frombits(uint64(b[0]) | uint64(b[1])<<8 | uint64(b[2])<<16 | uint64(b[3])<<24 | uint64(b[4])<<32 | uint64(b[5])<<40 | uint64(b[6])<<48 | uint64(b[7])<<56) + *f.toFloat64Ptr() = &v + return b[8:], nil +} + +func unmarshalFloat64Slice(b []byte, f pointer, w int) ([]byte, error) { + if w == WireBytes { // packed + x, n := decodeVarint(b) + if n == 0 { + return nil, io.ErrUnexpectedEOF + } + b = b[n:] + if x > uint64(len(b)) { + return nil, io.ErrUnexpectedEOF + } + res := b[x:] + b = b[:x] + for len(b) > 0 { + if len(b) < 8 { + return nil, io.ErrUnexpectedEOF + } + v := math.Float64frombits(uint64(b[0]) | uint64(b[1])<<8 | uint64(b[2])<<16 | uint64(b[3])<<24 | uint64(b[4])<<32 | uint64(b[5])<<40 | uint64(b[6])<<48 | uint64(b[7])<<56) + s := f.toFloat64Slice() + *s = append(*s, v) + b = b[8:] + } + return res, nil + } + if w != WireFixed64 { + return b, errInternalBadWireType + } + if len(b) < 8 { + return nil, io.ErrUnexpectedEOF + } + v := math.Float64frombits(uint64(b[0]) | uint64(b[1])<<8 | uint64(b[2])<<16 | uint64(b[3])<<24 | uint64(b[4])<<32 | uint64(b[5])<<40 | uint64(b[6])<<48 | uint64(b[7])<<56) + s := f.toFloat64Slice() + *s = append(*s, v) + return b[8:], nil +} + +func unmarshalFloat32Value(b []byte, f pointer, w int) ([]byte, error) { + if w != WireFixed32 { + return b, errInternalBadWireType + } + if len(b) < 4 { + return nil, io.ErrUnexpectedEOF + } + v := math.Float32frombits(uint32(b[0]) | uint32(b[1])<<8 | uint32(b[2])<<16 | uint32(b[3])<<24) + *f.toFloat32() = v + return b[4:], nil +} + +func unmarshalFloat32Ptr(b []byte, f pointer, w int) ([]byte, error) { + if w != WireFixed32 { + return b, errInternalBadWireType + } + if len(b) < 4 { + return nil, io.ErrUnexpectedEOF + } + v := math.Float32frombits(uint32(b[0]) | uint32(b[1])<<8 | uint32(b[2])<<16 | uint32(b[3])<<24) + *f.toFloat32Ptr() = &v + return b[4:], nil +} + +func unmarshalFloat32Slice(b []byte, f pointer, w int) ([]byte, error) { + if w == WireBytes { // packed + x, n := decodeVarint(b) + if n == 0 { + return nil, io.ErrUnexpectedEOF + } + b = b[n:] + if x > uint64(len(b)) { + return nil, io.ErrUnexpectedEOF + } + res := b[x:] + b = b[:x] + for len(b) > 0 { + if len(b) < 4 { + return nil, io.ErrUnexpectedEOF + } + v := math.Float32frombits(uint32(b[0]) | uint32(b[1])<<8 | uint32(b[2])<<16 | uint32(b[3])<<24) + s := f.toFloat32Slice() + *s = append(*s, v) + b = b[4:] + } + return res, nil + } + if w != WireFixed32 { + return b, errInternalBadWireType + } + if len(b) < 4 { + return nil, io.ErrUnexpectedEOF + } + v := math.Float32frombits(uint32(b[0]) | uint32(b[1])<<8 | uint32(b[2])<<16 | uint32(b[3])<<24) + s := f.toFloat32Slice() + *s = append(*s, v) + return b[4:], nil +} + +func unmarshalStringValue(b []byte, f pointer, w int) ([]byte, error) { + if w != WireBytes { + return b, errInternalBadWireType + } + x, n := decodeVarint(b) + if n == 0 { + return nil, io.ErrUnexpectedEOF + } + b = b[n:] + if x > uint64(len(b)) { + return nil, io.ErrUnexpectedEOF + } + v := string(b[:x]) + if !utf8.ValidString(v) { + return nil, errInvalidUTF8 + } + *f.toString() = v + return b[x:], nil +} + +func unmarshalStringPtr(b []byte, f pointer, w int) ([]byte, error) { + if w != WireBytes { + return b, errInternalBadWireType + } + x, n := decodeVarint(b) + if n == 0 { + return nil, io.ErrUnexpectedEOF + } + b = b[n:] + if x > uint64(len(b)) { + return nil, io.ErrUnexpectedEOF + } + v := string(b[:x]) + if !utf8.ValidString(v) { + return nil, errInvalidUTF8 + } + *f.toStringPtr() = &v + return b[x:], nil +} + +func unmarshalStringSlice(b []byte, f pointer, w int) ([]byte, error) { + if w != WireBytes { + return b, errInternalBadWireType + } + x, n := decodeVarint(b) + if n == 0 { + return nil, io.ErrUnexpectedEOF + } + b = b[n:] + if x > uint64(len(b)) { + return nil, io.ErrUnexpectedEOF + } + v := string(b[:x]) + if !utf8.ValidString(v) { + return nil, errInvalidUTF8 + } + s := f.toStringSlice() + *s = append(*s, v) + return b[x:], nil +} + +var emptyBuf [0]byte + +func unmarshalBytesValue(b []byte, f pointer, w int) ([]byte, error) { + if w != WireBytes { + return b, errInternalBadWireType + } + x, n := decodeVarint(b) + if n == 0 { + return nil, io.ErrUnexpectedEOF + } + b = b[n:] + if x > uint64(len(b)) { + return nil, io.ErrUnexpectedEOF + } + // The use of append here is a trick which avoids the zeroing + // that would be required if we used a make/copy pair. + // We append to emptyBuf instead of nil because we want + // a non-nil result even when the length is 0. + v := append(emptyBuf[:], b[:x]...) + *f.toBytes() = v + return b[x:], nil +} + +func unmarshalBytesSlice(b []byte, f pointer, w int) ([]byte, error) { + if w != WireBytes { + return b, errInternalBadWireType + } + x, n := decodeVarint(b) + if n == 0 { + return nil, io.ErrUnexpectedEOF + } + b = b[n:] + if x > uint64(len(b)) { + return nil, io.ErrUnexpectedEOF + } + v := append(emptyBuf[:], b[:x]...) + s := f.toBytesSlice() + *s = append(*s, v) + return b[x:], nil +} + +func makeUnmarshalMessagePtr(sub *unmarshalInfo, name string) unmarshaler { + return func(b []byte, f pointer, w int) ([]byte, error) { + if w != WireBytes { + return b, errInternalBadWireType + } + x, n := decodeVarint(b) + if n == 0 { + return nil, io.ErrUnexpectedEOF + } + b = b[n:] + if x > uint64(len(b)) { + return nil, io.ErrUnexpectedEOF + } + // First read the message field to see if something is there. + // The semantics of multiple submessages are weird. Instead of + // the last one winning (as it is for all other fields), multiple + // submessages are merged. + v := f.getPointer() + if v.isNil() { + v = valToPointer(reflect.New(sub.typ)) + f.setPointer(v) + } + err := sub.unmarshal(v, b[:x]) + if err != nil { + if r, ok := err.(*RequiredNotSetError); ok { + r.field = name + "." + r.field + } else { + return nil, err + } + } + return b[x:], err + } +} + +func makeUnmarshalMessageSlicePtr(sub *unmarshalInfo, name string) unmarshaler { + return func(b []byte, f pointer, w int) ([]byte, error) { + if w != WireBytes { + return b, errInternalBadWireType + } + x, n := decodeVarint(b) + if n == 0 { + return nil, io.ErrUnexpectedEOF + } + b = b[n:] + if x > uint64(len(b)) { + return nil, io.ErrUnexpectedEOF + } + v := valToPointer(reflect.New(sub.typ)) + err := sub.unmarshal(v, b[:x]) + if err != nil { + if r, ok := err.(*RequiredNotSetError); ok { + r.field = name + "." + r.field + } else { + return nil, err + } + } + f.appendPointer(v) + return b[x:], err + } +} + +func makeUnmarshalGroupPtr(sub *unmarshalInfo, name string) unmarshaler { + return func(b []byte, f pointer, w int) ([]byte, error) { + if w != WireStartGroup { + return b, errInternalBadWireType + } + x, y := findEndGroup(b) + if x < 0 { + return nil, io.ErrUnexpectedEOF + } + v := f.getPointer() + if v.isNil() { + v = valToPointer(reflect.New(sub.typ)) + f.setPointer(v) + } + err := sub.unmarshal(v, b[:x]) + if err != nil { + if r, ok := err.(*RequiredNotSetError); ok { + r.field = name + "." + r.field + } else { + return nil, err + } + } + return b[y:], err + } +} + +func makeUnmarshalGroupSlicePtr(sub *unmarshalInfo, name string) unmarshaler { + return func(b []byte, f pointer, w int) ([]byte, error) { + if w != WireStartGroup { + return b, errInternalBadWireType + } + x, y := findEndGroup(b) + if x < 0 { + return nil, io.ErrUnexpectedEOF + } + v := valToPointer(reflect.New(sub.typ)) + err := sub.unmarshal(v, b[:x]) + if err != nil { + if r, ok := err.(*RequiredNotSetError); ok { + r.field = name + "." + r.field + } else { + return nil, err + } + } + f.appendPointer(v) + return b[y:], err + } +} + +func makeUnmarshalMap(f *reflect.StructField) unmarshaler { + t := f.Type + kt := t.Key() + vt := t.Elem() + tagArray := strings.Split(f.Tag.Get("protobuf"), ",") + valTags := strings.Split(f.Tag.Get("protobuf_val"), ",") + for _, t := range tagArray { + if strings.HasPrefix(t, "customtype=") { + valTags = append(valTags, t) + } + if t == "stdtime" { + valTags = append(valTags, t) + } + if t == "stdduration" { + valTags = append(valTags, t) + } + } + unmarshalKey := typeUnmarshaler(kt, f.Tag.Get("protobuf_key")) + unmarshalVal := typeUnmarshaler(vt, strings.Join(valTags, ",")) + return func(b []byte, f pointer, w int) ([]byte, error) { + // The map entry is a submessage. Figure out how big it is. + if w != WireBytes { + return nil, fmt.Errorf("proto: bad wiretype for map field: got %d want %d", w, WireBytes) + } + x, n := decodeVarint(b) + if n == 0 { + return nil, io.ErrUnexpectedEOF + } + b = b[n:] + if x > uint64(len(b)) { + return nil, io.ErrUnexpectedEOF + } + r := b[x:] // unused data to return + b = b[:x] // data for map entry + + // Note: we could use #keys * #values ~= 200 functions + // to do map decoding without reflection. Probably not worth it. + // Maps will be somewhat slow. Oh well. + + // Read key and value from data. + k := reflect.New(kt) + v := reflect.New(vt) + for len(b) > 0 { + x, n := decodeVarint(b) + if n == 0 { + return nil, io.ErrUnexpectedEOF + } + wire := int(x) & 7 + b = b[n:] + + var err error + switch x >> 3 { + case 1: + b, err = unmarshalKey(b, valToPointer(k), wire) + case 2: + b, err = unmarshalVal(b, valToPointer(v), wire) + default: + err = errInternalBadWireType // skip unknown tag + } + + if err == nil { + continue + } + if err != errInternalBadWireType { + return nil, err + } + + // Skip past unknown fields. + b, err = skipField(b, wire) + if err != nil { + return nil, err + } + } + + // Get map, allocate if needed. + m := f.asPointerTo(t).Elem() // an addressable map[K]T + if m.IsNil() { + m.Set(reflect.MakeMap(t)) + } + + // Insert into map. + m.SetMapIndex(k.Elem(), v.Elem()) + + return r, nil + } +} + +// makeUnmarshalOneof makes an unmarshaler for oneof fields. +// for: +// message Msg { +// oneof F { +// int64 X = 1; +// float64 Y = 2; +// } +// } +// typ is the type of the concrete entry for a oneof case (e.g. Msg_X). +// ityp is the interface type of the oneof field (e.g. isMsg_F). +// unmarshal is the unmarshaler for the base type of the oneof case (e.g. int64). +// Note that this function will be called once for each case in the oneof. +func makeUnmarshalOneof(typ, ityp reflect.Type, unmarshal unmarshaler) unmarshaler { + sf := typ.Field(0) + field0 := toField(&sf) + return func(b []byte, f pointer, w int) ([]byte, error) { + // Allocate holder for value. + v := reflect.New(typ) + + // Unmarshal data into holder. + // We unmarshal into the first field of the holder object. + var err error + b, err = unmarshal(b, valToPointer(v).offset(field0), w) + if err != nil { + return nil, err + } + + // Write pointer to holder into target field. + f.asPointerTo(ityp).Elem().Set(v) + + return b, nil + } +} + +// Error used by decode internally. +var errInternalBadWireType = errors.New("proto: internal error: bad wiretype") + +// skipField skips past a field of type wire and returns the remaining bytes. +func skipField(b []byte, wire int) ([]byte, error) { + switch wire { + case WireVarint: + _, k := decodeVarint(b) + if k == 0 { + return b, io.ErrUnexpectedEOF + } + b = b[k:] + case WireFixed32: + if len(b) < 4 { + return b, io.ErrUnexpectedEOF + } + b = b[4:] + case WireFixed64: + if len(b) < 8 { + return b, io.ErrUnexpectedEOF + } + b = b[8:] + case WireBytes: + m, k := decodeVarint(b) + if k == 0 || uint64(len(b)-k) < m { + return b, io.ErrUnexpectedEOF + } + b = b[uint64(k)+m:] + case WireStartGroup: + _, i := findEndGroup(b) + if i == -1 { + return b, io.ErrUnexpectedEOF + } + b = b[i:] + default: + return b, fmt.Errorf("proto: can't skip unknown wire type %d", wire) + } + return b, nil +} + +// findEndGroup finds the index of the next EndGroup tag. +// Groups may be nested, so the "next" EndGroup tag is the first +// unpaired EndGroup. +// findEndGroup returns the indexes of the start and end of the EndGroup tag. +// Returns (-1,-1) if it can't find one. +func findEndGroup(b []byte) (int, int) { + depth := 1 + i := 0 + for { + x, n := decodeVarint(b[i:]) + if n == 0 { + return -1, -1 + } + j := i + i += n + switch x & 7 { + case WireVarint: + _, k := decodeVarint(b[i:]) + if k == 0 { + return -1, -1 + } + i += k + case WireFixed32: + if len(b)-4 < i { + return -1, -1 + } + i += 4 + case WireFixed64: + if len(b)-8 < i { + return -1, -1 + } + i += 8 + case WireBytes: + m, k := decodeVarint(b[i:]) + if k == 0 { + return -1, -1 + } + i += k + if uint64(len(b)-i) < m { + return -1, -1 + } + i += int(m) + case WireStartGroup: + depth++ + case WireEndGroup: + depth-- + if depth == 0 { + return j, i + } + default: + return -1, -1 + } + } +} + +// encodeVarint appends a varint-encoded integer to b and returns the result. +func encodeVarint(b []byte, x uint64) []byte { + for x >= 1<<7 { + b = append(b, byte(x&0x7f|0x80)) + x >>= 7 + } + return append(b, byte(x)) +} + +// decodeVarint reads a varint-encoded integer from b. +// Returns the decoded integer and the number of bytes read. +// If there is an error, it returns 0,0. +func decodeVarint(b []byte) (uint64, int) { + var x, y uint64 + if len(b) <= 0 { + goto bad + } + x = uint64(b[0]) + if x < 0x80 { + return x, 1 + } + x -= 0x80 + + if len(b) <= 1 { + goto bad + } + y = uint64(b[1]) + x += y << 7 + if y < 0x80 { + return x, 2 + } + x -= 0x80 << 7 + + if len(b) <= 2 { + goto bad + } + y = uint64(b[2]) + x += y << 14 + if y < 0x80 { + return x, 3 + } + x -= 0x80 << 14 + + if len(b) <= 3 { + goto bad + } + y = uint64(b[3]) + x += y << 21 + if y < 0x80 { + return x, 4 + } + x -= 0x80 << 21 + + if len(b) <= 4 { + goto bad + } + y = uint64(b[4]) + x += y << 28 + if y < 0x80 { + return x, 5 + } + x -= 0x80 << 28 + + if len(b) <= 5 { + goto bad + } + y = uint64(b[5]) + x += y << 35 + if y < 0x80 { + return x, 6 + } + x -= 0x80 << 35 + + if len(b) <= 6 { + goto bad + } + y = uint64(b[6]) + x += y << 42 + if y < 0x80 { + return x, 7 + } + x -= 0x80 << 42 + + if len(b) <= 7 { + goto bad + } + y = uint64(b[7]) + x += y << 49 + if y < 0x80 { + return x, 8 + } + x -= 0x80 << 49 + + if len(b) <= 8 { + goto bad + } + y = uint64(b[8]) + x += y << 56 + if y < 0x80 { + return x, 9 + } + x -= 0x80 << 56 + + if len(b) <= 9 { + goto bad + } + y = uint64(b[9]) + x += y << 63 + if y < 2 { + return x, 10 + } + +bad: + return 0, 0 +} diff --git a/vendor/github.com/gogo/protobuf/proto/table_unmarshal_gogo.go b/vendor/github.com/gogo/protobuf/proto/table_unmarshal_gogo.go new file mode 100644 index 0000000..00d6c7a --- /dev/null +++ b/vendor/github.com/gogo/protobuf/proto/table_unmarshal_gogo.go @@ -0,0 +1,385 @@ +// Protocol Buffers for Go with Gadgets +// +// Copyright (c) 2018, The GoGo Authors. All rights reserved. +// http://github.com/gogo/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. +// +// 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 + +import ( + "io" + "reflect" +) + +func makeUnmarshalMessage(sub *unmarshalInfo, name string) unmarshaler { + return func(b []byte, f pointer, w int) ([]byte, error) { + if w != WireBytes { + return nil, errInternalBadWireType + } + x, n := decodeVarint(b) + if n == 0 { + return nil, io.ErrUnexpectedEOF + } + b = b[n:] + if x > uint64(len(b)) { + return nil, io.ErrUnexpectedEOF + } + // First read the message field to see if something is there. + // The semantics of multiple submessages are weird. Instead of + // the last one winning (as it is for all other fields), multiple + // submessages are merged. + v := f // gogo: changed from v := f.getPointer() + if v.isNil() { + v = valToPointer(reflect.New(sub.typ)) + f.setPointer(v) + } + err := sub.unmarshal(v, b[:x]) + if err != nil { + if r, ok := err.(*RequiredNotSetError); ok { + r.field = name + "." + r.field + } else { + return nil, err + } + } + return b[x:], err + } +} + +func makeUnmarshalMessageSlice(sub *unmarshalInfo, name string) unmarshaler { + return func(b []byte, f pointer, w int) ([]byte, error) { + if w != WireBytes { + return nil, errInternalBadWireType + } + x, n := decodeVarint(b) + if n == 0 { + return nil, io.ErrUnexpectedEOF + } + b = b[n:] + if x > uint64(len(b)) { + return nil, io.ErrUnexpectedEOF + } + v := valToPointer(reflect.New(sub.typ)) + err := sub.unmarshal(v, b[:x]) + if err != nil { + if r, ok := err.(*RequiredNotSetError); ok { + r.field = name + "." + r.field + } else { + return nil, err + } + } + f.appendRef(v, sub.typ) // gogo: changed from f.appendPointer(v) + return b[x:], err + } +} + +func makeUnmarshalCustomPtr(sub *unmarshalInfo, name string) unmarshaler { + return func(b []byte, f pointer, w int) ([]byte, error) { + if w != WireBytes { + return nil, errInternalBadWireType + } + x, n := decodeVarint(b) + if n == 0 { + return nil, io.ErrUnexpectedEOF + } + b = b[n:] + if x > uint64(len(b)) { + return nil, io.ErrUnexpectedEOF + } + + s := f.asPointerTo(reflect.PtrTo(sub.typ)).Elem() + s.Set(reflect.New(sub.typ)) + m := s.Interface().(custom) + if err := m.Unmarshal(b[:x]); err != nil { + return nil, err + } + return b[x:], nil + } +} + +func makeUnmarshalCustomSlice(sub *unmarshalInfo, name string) unmarshaler { + return func(b []byte, f pointer, w int) ([]byte, error) { + if w != WireBytes { + return nil, errInternalBadWireType + } + x, n := decodeVarint(b) + if n == 0 { + return nil, io.ErrUnexpectedEOF + } + b = b[n:] + if x > uint64(len(b)) { + return nil, io.ErrUnexpectedEOF + } + m := reflect.New(sub.typ) + c := m.Interface().(custom) + if err := c.Unmarshal(b[:x]); err != nil { + return nil, err + } + v := valToPointer(m) + f.appendRef(v, sub.typ) + return b[x:], nil + } +} + +func makeUnmarshalCustom(sub *unmarshalInfo, name string) unmarshaler { + return func(b []byte, f pointer, w int) ([]byte, error) { + if w != WireBytes { + return nil, errInternalBadWireType + } + x, n := decodeVarint(b) + if n == 0 { + return nil, io.ErrUnexpectedEOF + } + b = b[n:] + if x > uint64(len(b)) { + return nil, io.ErrUnexpectedEOF + } + + m := f.asPointerTo(sub.typ).Interface().(custom) + if err := m.Unmarshal(b[:x]); err != nil { + return nil, err + } + return b[x:], nil + } +} + +func makeUnmarshalTime(sub *unmarshalInfo, name string) unmarshaler { + return func(b []byte, f pointer, w int) ([]byte, error) { + if w != WireBytes { + return nil, errInternalBadWireType + } + x, n := decodeVarint(b) + if n == 0 { + return nil, io.ErrUnexpectedEOF + } + b = b[n:] + if x > uint64(len(b)) { + return nil, io.ErrUnexpectedEOF + } + m := ×tamp{} + if err := Unmarshal(b[:x], m); err != nil { + return nil, err + } + t, err := timestampFromProto(m) + if err != nil { + return nil, err + } + s := f.asPointerTo(sub.typ).Elem() + s.Set(reflect.ValueOf(t)) + return b[x:], nil + } +} + +func makeUnmarshalTimePtr(sub *unmarshalInfo, name string) unmarshaler { + return func(b []byte, f pointer, w int) ([]byte, error) { + if w != WireBytes { + return nil, errInternalBadWireType + } + x, n := decodeVarint(b) + if n == 0 { + return nil, io.ErrUnexpectedEOF + } + b = b[n:] + if x > uint64(len(b)) { + return nil, io.ErrUnexpectedEOF + } + m := ×tamp{} + if err := Unmarshal(b[:x], m); err != nil { + return nil, err + } + t, err := timestampFromProto(m) + if err != nil { + return nil, err + } + s := f.asPointerTo(reflect.PtrTo(sub.typ)).Elem() + s.Set(reflect.ValueOf(&t)) + return b[x:], nil + } +} + +func makeUnmarshalTimePtrSlice(sub *unmarshalInfo, name string) unmarshaler { + return func(b []byte, f pointer, w int) ([]byte, error) { + if w != WireBytes { + return nil, errInternalBadWireType + } + x, n := decodeVarint(b) + if n == 0 { + return nil, io.ErrUnexpectedEOF + } + b = b[n:] + if x > uint64(len(b)) { + return nil, io.ErrUnexpectedEOF + } + m := ×tamp{} + if err := Unmarshal(b[:x], m); err != nil { + return nil, err + } + t, err := timestampFromProto(m) + if err != nil { + return nil, err + } + slice := f.getSlice(reflect.PtrTo(sub.typ)) + newSlice := reflect.Append(slice, reflect.ValueOf(&t)) + slice.Set(newSlice) + return b[x:], nil + } +} + +func makeUnmarshalTimeSlice(sub *unmarshalInfo, name string) unmarshaler { + return func(b []byte, f pointer, w int) ([]byte, error) { + if w != WireBytes { + return nil, errInternalBadWireType + } + x, n := decodeVarint(b) + if n == 0 { + return nil, io.ErrUnexpectedEOF + } + b = b[n:] + if x > uint64(len(b)) { + return nil, io.ErrUnexpectedEOF + } + m := ×tamp{} + if err := Unmarshal(b[:x], m); err != nil { + return nil, err + } + t, err := timestampFromProto(m) + if err != nil { + return nil, err + } + slice := f.getSlice(sub.typ) + newSlice := reflect.Append(slice, reflect.ValueOf(t)) + slice.Set(newSlice) + return b[x:], nil + } +} + +func makeUnmarshalDurationPtr(sub *unmarshalInfo, name string) unmarshaler { + return func(b []byte, f pointer, w int) ([]byte, error) { + if w != WireBytes { + return nil, errInternalBadWireType + } + x, n := decodeVarint(b) + if n == 0 { + return nil, io.ErrUnexpectedEOF + } + b = b[n:] + if x > uint64(len(b)) { + return nil, io.ErrUnexpectedEOF + } + m := &duration{} + if err := Unmarshal(b[:x], m); err != nil { + return nil, err + } + d, err := durationFromProto(m) + if err != nil { + return nil, err + } + s := f.asPointerTo(reflect.PtrTo(sub.typ)).Elem() + s.Set(reflect.ValueOf(&d)) + return b[x:], nil + } +} + +func makeUnmarshalDuration(sub *unmarshalInfo, name string) unmarshaler { + return func(b []byte, f pointer, w int) ([]byte, error) { + if w != WireBytes { + return nil, errInternalBadWireType + } + x, n := decodeVarint(b) + if n == 0 { + return nil, io.ErrUnexpectedEOF + } + b = b[n:] + if x > uint64(len(b)) { + return nil, io.ErrUnexpectedEOF + } + m := &duration{} + if err := Unmarshal(b[:x], m); err != nil { + return nil, err + } + d, err := durationFromProto(m) + if err != nil { + return nil, err + } + s := f.asPointerTo(sub.typ).Elem() + s.Set(reflect.ValueOf(d)) + return b[x:], nil + } +} + +func makeUnmarshalDurationPtrSlice(sub *unmarshalInfo, name string) unmarshaler { + return func(b []byte, f pointer, w int) ([]byte, error) { + if w != WireBytes { + return nil, errInternalBadWireType + } + x, n := decodeVarint(b) + if n == 0 { + return nil, io.ErrUnexpectedEOF + } + b = b[n:] + if x > uint64(len(b)) { + return nil, io.ErrUnexpectedEOF + } + m := &duration{} + if err := Unmarshal(b[:x], m); err != nil { + return nil, err + } + d, err := durationFromProto(m) + if err != nil { + return nil, err + } + slice := f.getSlice(reflect.PtrTo(sub.typ)) + newSlice := reflect.Append(slice, reflect.ValueOf(&d)) + slice.Set(newSlice) + return b[x:], nil + } +} + +func makeUnmarshalDurationSlice(sub *unmarshalInfo, name string) unmarshaler { + return func(b []byte, f pointer, w int) ([]byte, error) { + if w != WireBytes { + return nil, errInternalBadWireType + } + x, n := decodeVarint(b) + if n == 0 { + return nil, io.ErrUnexpectedEOF + } + b = b[n:] + if x > uint64(len(b)) { + return nil, io.ErrUnexpectedEOF + } + m := &duration{} + if err := Unmarshal(b[:x], m); err != nil { + return nil, err + } + d, err := durationFromProto(m) + if err != nil { + return nil, err + } + slice := f.getSlice(sub.typ) + newSlice := reflect.Append(slice, reflect.ValueOf(d)) + slice.Set(newSlice) + return b[x:], nil + } +} diff --git a/vendor/github.com/gogo/protobuf/proto/text.go b/vendor/github.com/gogo/protobuf/proto/text.go new file mode 100644 index 0000000..4f5706d --- /dev/null +++ b/vendor/github.com/gogo/protobuf/proto/text.go @@ -0,0 +1,928 @@ +// Protocol Buffers for Go with Gadgets +// +// Copyright (c) 2013, The GoGo Authors. All rights reserved. +// http://github.com/gogo/protobuf +// +// 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 + +// Functions for writing the text protocol buffer format. + +import ( + "bufio" + "bytes" + "encoding" + "errors" + "fmt" + "io" + "log" + "math" + "reflect" + "sort" + "strings" + "sync" + "time" +) + +var ( + newline = []byte("\n") + spaces = []byte(" ") + endBraceNewline = []byte("}\n") + backslashN = []byte{'\\', 'n'} + backslashR = []byte{'\\', 'r'} + backslashT = []byte{'\\', 't'} + backslashDQ = []byte{'\\', '"'} + backslashBS = []byte{'\\', '\\'} + posInf = []byte("inf") + negInf = []byte("-inf") + nan = []byte("nan") +) + +type writer interface { + io.Writer + WriteByte(byte) error +} + +// textWriter is an io.Writer that tracks its indentation level. +type textWriter struct { + ind int + complete bool // if the current position is a complete line + compact bool // whether to write out as a one-liner + w writer +} + +func (w *textWriter) WriteString(s string) (n int, err error) { + if !strings.Contains(s, "\n") { + if !w.compact && w.complete { + w.writeIndent() + } + w.complete = false + return io.WriteString(w.w, s) + } + // WriteString is typically called without newlines, so this + // codepath and its copy are rare. We copy to avoid + // duplicating all of Write's logic here. + return w.Write([]byte(s)) +} + +func (w *textWriter) Write(p []byte) (n int, err error) { + newlines := bytes.Count(p, newline) + if newlines == 0 { + if !w.compact && w.complete { + w.writeIndent() + } + n, err = w.w.Write(p) + w.complete = false + return n, err + } + + frags := bytes.SplitN(p, newline, newlines+1) + if w.compact { + for i, frag := range frags { + if i > 0 { + if err := w.w.WriteByte(' '); err != nil { + return n, err + } + n++ + } + nn, err := w.w.Write(frag) + n += nn + if err != nil { + return n, err + } + } + return n, nil + } + + for i, frag := range frags { + if w.complete { + w.writeIndent() + } + nn, err := w.w.Write(frag) + n += nn + if err != nil { + return n, err + } + if i+1 < len(frags) { + if err := w.w.WriteByte('\n'); err != nil { + return n, err + } + n++ + } + } + w.complete = len(frags[len(frags)-1]) == 0 + return n, nil +} + +func (w *textWriter) WriteByte(c byte) error { + if w.compact && c == '\n' { + c = ' ' + } + if !w.compact && w.complete { + w.writeIndent() + } + err := w.w.WriteByte(c) + w.complete = c == '\n' + return err +} + +func (w *textWriter) indent() { w.ind++ } + +func (w *textWriter) unindent() { + if w.ind == 0 { + log.Print("proto: textWriter unindented too far") + return + } + w.ind-- +} + +func writeName(w *textWriter, props *Properties) error { + if _, err := w.WriteString(props.OrigName); err != nil { + return err + } + if props.Wire != "group" { + return w.WriteByte(':') + } + return nil +} + +func requiresQuotes(u string) bool { + // When type URL contains any characters except [0-9A-Za-z./\-]*, it must be quoted. + for _, ch := range u { + switch { + case ch == '.' || ch == '/' || ch == '_': + continue + case '0' <= ch && ch <= '9': + continue + case 'A' <= ch && ch <= 'Z': + continue + case 'a' <= ch && ch <= 'z': + continue + default: + return true + } + } + return false +} + +// isAny reports whether sv is a google.protobuf.Any message +func isAny(sv reflect.Value) bool { + type wkt interface { + XXX_WellKnownType() string + } + t, ok := sv.Addr().Interface().(wkt) + return ok && t.XXX_WellKnownType() == "Any" +} + +// writeProto3Any writes an expanded google.protobuf.Any message. +// +// It returns (false, nil) if sv value can't be unmarshaled (e.g. because +// required messages are not linked in). +// +// It returns (true, error) when sv was written in expanded format or an error +// was encountered. +func (tm *TextMarshaler) writeProto3Any(w *textWriter, sv reflect.Value) (bool, error) { + turl := sv.FieldByName("TypeUrl") + val := sv.FieldByName("Value") + if !turl.IsValid() || !val.IsValid() { + return true, errors.New("proto: invalid google.protobuf.Any message") + } + + b, ok := val.Interface().([]byte) + if !ok { + return true, errors.New("proto: invalid google.protobuf.Any message") + } + + parts := strings.Split(turl.String(), "/") + mt := MessageType(parts[len(parts)-1]) + if mt == nil { + return false, nil + } + m := reflect.New(mt.Elem()) + if err := Unmarshal(b, m.Interface().(Message)); err != nil { + return false, nil + } + w.Write([]byte("[")) + u := turl.String() + if requiresQuotes(u) { + writeString(w, u) + } else { + w.Write([]byte(u)) + } + if w.compact { + w.Write([]byte("]:<")) + } else { + w.Write([]byte("]: <\n")) + w.ind++ + } + if err := tm.writeStruct(w, m.Elem()); err != nil { + return true, err + } + if w.compact { + w.Write([]byte("> ")) + } else { + w.ind-- + w.Write([]byte(">\n")) + } + return true, nil +} + +func (tm *TextMarshaler) writeStruct(w *textWriter, sv reflect.Value) error { + if tm.ExpandAny && isAny(sv) { + if canExpand, err := tm.writeProto3Any(w, sv); canExpand { + return err + } + } + st := sv.Type() + sprops := GetProperties(st) + for i := 0; i < sv.NumField(); i++ { + fv := sv.Field(i) + props := sprops.Prop[i] + name := st.Field(i).Name + + if name == "XXX_NoUnkeyedLiteral" { + continue + } + + if strings.HasPrefix(name, "XXX_") { + // There are two XXX_ fields: + // XXX_unrecognized []byte + // XXX_extensions map[int32]proto.Extension + // The first is handled here; + // the second is handled at the bottom of this function. + if name == "XXX_unrecognized" && !fv.IsNil() { + if err := writeUnknownStruct(w, fv.Interface().([]byte)); err != nil { + return err + } + } + continue + } + if fv.Kind() == reflect.Ptr && fv.IsNil() { + // Field not filled in. This could be an optional field or + // a required field that wasn't filled in. Either way, there + // isn't anything we can show for it. + continue + } + if fv.Kind() == reflect.Slice && fv.IsNil() { + // Repeated field that is empty, or a bytes field that is unused. + continue + } + + if props.Repeated && fv.Kind() == reflect.Slice { + // Repeated field. + for j := 0; j < fv.Len(); j++ { + if err := writeName(w, props); err != nil { + return err + } + if !w.compact { + if err := w.WriteByte(' '); err != nil { + return err + } + } + v := fv.Index(j) + if v.Kind() == reflect.Ptr && v.IsNil() { + // A nil message in a repeated field is not valid, + // but we can handle that more gracefully than panicking. + if _, err := w.Write([]byte("<nil>\n")); err != nil { + return err + } + continue + } + if len(props.Enum) > 0 { + if err := tm.writeEnum(w, v, props); err != nil { + return err + } + } else if err := tm.writeAny(w, v, props); err != nil { + return err + } + if err := w.WriteByte('\n'); err != nil { + return err + } + } + continue + } + if fv.Kind() == reflect.Map { + // Map fields are rendered as a repeated struct with key/value fields. + keys := fv.MapKeys() + sort.Sort(mapKeys(keys)) + for _, key := range keys { + val := fv.MapIndex(key) + if err := writeName(w, props); err != nil { + return err + } + if !w.compact { + if err := w.WriteByte(' '); err != nil { + return err + } + } + // open struct + if err := w.WriteByte('<'); err != nil { + return err + } + if !w.compact { + if err := w.WriteByte('\n'); err != nil { + return err + } + } + w.indent() + // key + if _, err := w.WriteString("key:"); err != nil { + return err + } + if !w.compact { + if err := w.WriteByte(' '); err != nil { + return err + } + } + if err := tm.writeAny(w, key, props.mkeyprop); err != nil { + return err + } + if err := w.WriteByte('\n'); err != nil { + return err + } + // nil values aren't legal, but we can avoid panicking because of them. + if val.Kind() != reflect.Ptr || !val.IsNil() { + // value + if _, err := w.WriteString("value:"); err != nil { + return err + } + if !w.compact { + if err := w.WriteByte(' '); err != nil { + return err + } + } + if err := tm.writeAny(w, val, props.mvalprop); err != nil { + return err + } + if err := w.WriteByte('\n'); err != nil { + return err + } + } + // close struct + w.unindent() + if err := w.WriteByte('>'); err != nil { + return err + } + if err := w.WriteByte('\n'); err != nil { + return err + } + } + continue + } + if props.proto3 && fv.Kind() == reflect.Slice && fv.Len() == 0 { + // empty bytes field + continue + } + if props.proto3 && fv.Kind() != reflect.Ptr && fv.Kind() != reflect.Slice { + // proto3 non-repeated scalar field; skip if zero value + if isProto3Zero(fv) { + continue + } + } + + if fv.Kind() == reflect.Interface { + // Check if it is a oneof. + if st.Field(i).Tag.Get("protobuf_oneof") != "" { + // fv is nil, or holds a pointer to generated struct. + // That generated struct has exactly one field, + // which has a protobuf struct tag. + if fv.IsNil() { + continue + } + inner := fv.Elem().Elem() // interface -> *T -> T + tag := inner.Type().Field(0).Tag.Get("protobuf") + props = new(Properties) // Overwrite the outer props var, but not its pointee. + props.Parse(tag) + // Write the value in the oneof, not the oneof itself. + fv = inner.Field(0) + + // Special case to cope with malformed messages gracefully: + // If the value in the oneof is a nil pointer, don't panic + // in writeAny. + if fv.Kind() == reflect.Ptr && fv.IsNil() { + // Use errors.New so writeAny won't render quotes. + msg := errors.New("/* nil */") + fv = reflect.ValueOf(&msg).Elem() + } + } + } + + if err := writeName(w, props); err != nil { + return err + } + if !w.compact { + if err := w.WriteByte(' '); err != nil { + return err + } + } + + if len(props.Enum) > 0 { + if err := tm.writeEnum(w, fv, props); err != nil { + return err + } + } else if err := tm.writeAny(w, fv, props); err != nil { + return err + } + + if err := w.WriteByte('\n'); err != nil { + return err + } + } + + // Extensions (the XXX_extensions field). + pv := sv + if pv.CanAddr() { + pv = sv.Addr() + } else { + pv = reflect.New(sv.Type()) + pv.Elem().Set(sv) + } + if _, err := extendable(pv.Interface()); err == nil { + if err := tm.writeExtensions(w, pv); err != nil { + return err + } + } + + return nil +} + +// writeAny writes an arbitrary field. +func (tm *TextMarshaler) writeAny(w *textWriter, v reflect.Value, props *Properties) error { + v = reflect.Indirect(v) + + if props != nil { + if len(props.CustomType) > 0 { + custom, ok := v.Interface().(Marshaler) + if ok { + data, err := custom.Marshal() + if err != nil { + return err + } + if err := writeString(w, string(data)); err != nil { + return err + } + return nil + } + } else if len(props.CastType) > 0 { + if _, ok := v.Interface().(interface { + String() string + }); ok { + switch v.Kind() { + case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64, + reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64: + _, err := fmt.Fprintf(w, "%d", v.Interface()) + return err + } + } + } else if props.StdTime { + t, ok := v.Interface().(time.Time) + if !ok { + return fmt.Errorf("stdtime is not time.Time, but %T", v.Interface()) + } + tproto, err := timestampProto(t) + if err != nil { + return err + } + propsCopy := *props // Make a copy so that this is goroutine-safe + propsCopy.StdTime = false + err = tm.writeAny(w, reflect.ValueOf(tproto), &propsCopy) + return err + } else if props.StdDuration { + d, ok := v.Interface().(time.Duration) + if !ok { + return fmt.Errorf("stdtime is not time.Duration, but %T", v.Interface()) + } + dproto := durationProto(d) + propsCopy := *props // Make a copy so that this is goroutine-safe + propsCopy.StdDuration = false + err := tm.writeAny(w, reflect.ValueOf(dproto), &propsCopy) + return err + } + } + + // Floats have special cases. + if v.Kind() == reflect.Float32 || v.Kind() == reflect.Float64 { + x := v.Float() + var b []byte + switch { + case math.IsInf(x, 1): + b = posInf + case math.IsInf(x, -1): + b = negInf + case math.IsNaN(x): + b = nan + } + if b != nil { + _, err := w.Write(b) + return err + } + // Other values are handled below. + } + + // We don't attempt to serialise every possible value type; only those + // that can occur in protocol buffers. + switch v.Kind() { + case reflect.Slice: + // Should only be a []byte; repeated fields are handled in writeStruct. + if err := writeString(w, string(v.Bytes())); err != nil { + return err + } + case reflect.String: + if err := writeString(w, v.String()); err != nil { + return err + } + case reflect.Struct: + // Required/optional group/message. + var bra, ket byte = '<', '>' + if props != nil && props.Wire == "group" { + bra, ket = '{', '}' + } + if err := w.WriteByte(bra); err != nil { + return err + } + if !w.compact { + if err := w.WriteByte('\n'); err != nil { + return err + } + } + w.indent() + if v.CanAddr() { + // Calling v.Interface on a struct causes the reflect package to + // copy the entire struct. This is racy with the new Marshaler + // since we atomically update the XXX_sizecache. + // + // Thus, we retrieve a pointer to the struct if possible to avoid + // a race since v.Interface on the pointer doesn't copy the struct. + // + // If v is not addressable, then we are not worried about a race + // since it implies that the binary Marshaler cannot possibly be + // mutating this value. + v = v.Addr() + } + if etm, ok := v.Interface().(encoding.TextMarshaler); ok { + text, err := etm.MarshalText() + if err != nil { + return err + } + if _, err = w.Write(text); err != nil { + return err + } + } else { + if v.Kind() == reflect.Ptr { + v = v.Elem() + } + if err := tm.writeStruct(w, v); err != nil { + return err + } + } + w.unindent() + if err := w.WriteByte(ket); err != nil { + return err + } + default: + _, err := fmt.Fprint(w, v.Interface()) + return err + } + return nil +} + +// equivalent to C's isprint. +func isprint(c byte) bool { + return c >= 0x20 && c < 0x7f +} + +// writeString writes a string in the protocol buffer text format. +// It is similar to strconv.Quote except we don't use Go escape sequences, +// we treat the string as a byte sequence, and we use octal escapes. +// These differences are to maintain interoperability with the other +// languages' implementations of the text format. +func writeString(w *textWriter, s string) error { + // use WriteByte here to get any needed indent + if err := w.WriteByte('"'); err != nil { + return err + } + // Loop over the bytes, not the runes. + for i := 0; i < len(s); i++ { + var err error + // Divergence from C++: we don't escape apostrophes. + // There's no need to escape them, and the C++ parser + // copes with a naked apostrophe. + switch c := s[i]; c { + case '\n': + _, err = w.w.Write(backslashN) + case '\r': + _, err = w.w.Write(backslashR) + case '\t': + _, err = w.w.Write(backslashT) + case '"': + _, err = w.w.Write(backslashDQ) + case '\\': + _, err = w.w.Write(backslashBS) + default: + if isprint(c) { + err = w.w.WriteByte(c) + } else { + _, err = fmt.Fprintf(w.w, "\\%03o", c) + } + } + if err != nil { + return err + } + } + return w.WriteByte('"') +} + +func writeUnknownStruct(w *textWriter, data []byte) (err error) { + if !w.compact { + if _, err := fmt.Fprintf(w, "/* %d unknown bytes */\n", len(data)); err != nil { + return err + } + } + b := NewBuffer(data) + for b.index < len(b.buf) { + x, err := b.DecodeVarint() + if err != nil { + _, ferr := fmt.Fprintf(w, "/* %v */\n", err) + return ferr + } + wire, tag := x&7, x>>3 + if wire == WireEndGroup { + w.unindent() + if _, werr := w.Write(endBraceNewline); werr != nil { + return werr + } + continue + } + if _, ferr := fmt.Fprint(w, tag); ferr != nil { + return ferr + } + if wire != WireStartGroup { + if err = w.WriteByte(':'); err != nil { + return err + } + } + if !w.compact || wire == WireStartGroup { + if err = w.WriteByte(' '); err != nil { + return err + } + } + switch wire { + case WireBytes: + buf, e := b.DecodeRawBytes(false) + if e == nil { + _, err = fmt.Fprintf(w, "%q", buf) + } else { + _, err = fmt.Fprintf(w, "/* %v */", e) + } + case WireFixed32: + x, err = b.DecodeFixed32() + err = writeUnknownInt(w, x, err) + case WireFixed64: + x, err = b.DecodeFixed64() + err = writeUnknownInt(w, x, err) + case WireStartGroup: + err = w.WriteByte('{') + w.indent() + case WireVarint: + x, err = b.DecodeVarint() + err = writeUnknownInt(w, x, err) + default: + _, err = fmt.Fprintf(w, "/* unknown wire type %d */", wire) + } + if err != nil { + return err + } + if err := w.WriteByte('\n'); err != nil { + return err + } + } + return nil +} + +func writeUnknownInt(w *textWriter, x uint64, err error) error { + if err == nil { + _, err = fmt.Fprint(w, x) + } else { + _, err = fmt.Fprintf(w, "/* %v */", err) + } + return err +} + +type int32Slice []int32 + +func (s int32Slice) Len() int { return len(s) } +func (s int32Slice) Less(i, j int) bool { return s[i] < s[j] } +func (s int32Slice) Swap(i, j int) { s[i], s[j] = s[j], s[i] } + +// writeExtensions writes all the extensions in pv. +// pv is assumed to be a pointer to a protocol message struct that is extendable. +func (tm *TextMarshaler) writeExtensions(w *textWriter, pv reflect.Value) error { + emap := extensionMaps[pv.Type().Elem()] + e := pv.Interface().(Message) + + var m map[int32]Extension + var mu sync.Locker + if em, ok := e.(extensionsBytes); ok { + eb := em.GetExtensions() + var err error + m, err = BytesToExtensionsMap(*eb) + if err != nil { + return err + } + mu = notLocker{} + } else if _, ok := e.(extendableProto); ok { + ep, _ := extendable(e) + m, mu = ep.extensionsRead() + if m == nil { + return nil + } + } + + // Order the extensions by ID. + // This isn't strictly necessary, but it will give us + // canonical output, which will also make testing easier. + + mu.Lock() + ids := make([]int32, 0, len(m)) + for id := range m { + ids = append(ids, id) + } + sort.Sort(int32Slice(ids)) + mu.Unlock() + + for _, extNum := range ids { + ext := m[extNum] + var desc *ExtensionDesc + if emap != nil { + desc = emap[extNum] + } + if desc == nil { + // Unknown extension. + if err := writeUnknownStruct(w, ext.enc); err != nil { + return err + } + continue + } + + pb, err := GetExtension(e, desc) + if err != nil { + return fmt.Errorf("failed getting extension: %v", err) + } + + // Repeated extensions will appear as a slice. + if !desc.repeated() { + if err := tm.writeExtension(w, desc.Name, pb); err != nil { + return err + } + } else { + v := reflect.ValueOf(pb) + for i := 0; i < v.Len(); i++ { + if err := tm.writeExtension(w, desc.Name, v.Index(i).Interface()); err != nil { + return err + } + } + } + } + return nil +} + +func (tm *TextMarshaler) writeExtension(w *textWriter, name string, pb interface{}) error { + if _, err := fmt.Fprintf(w, "[%s]:", name); err != nil { + return err + } + if !w.compact { + if err := w.WriteByte(' '); err != nil { + return err + } + } + if err := tm.writeAny(w, reflect.ValueOf(pb), nil); err != nil { + return err + } + if err := w.WriteByte('\n'); err != nil { + return err + } + return nil +} + +func (w *textWriter) writeIndent() { + if !w.complete { + return + } + remain := w.ind * 2 + for remain > 0 { + n := remain + if n > len(spaces) { + n = len(spaces) + } + w.w.Write(spaces[:n]) + remain -= n + } + w.complete = false +} + +// TextMarshaler is a configurable text format marshaler. +type TextMarshaler struct { + Compact bool // use compact text format (one line). + ExpandAny bool // expand google.protobuf.Any messages of known types +} + +// Marshal writes a given protocol buffer in text format. +// The only errors returned are from w. +func (tm *TextMarshaler) Marshal(w io.Writer, pb Message) error { + val := reflect.ValueOf(pb) + if pb == nil || val.IsNil() { + w.Write([]byte("<nil>")) + return nil + } + var bw *bufio.Writer + ww, ok := w.(writer) + if !ok { + bw = bufio.NewWriter(w) + ww = bw + } + aw := &textWriter{ + w: ww, + complete: true, + compact: tm.Compact, + } + + if etm, ok := pb.(encoding.TextMarshaler); ok { + text, err := etm.MarshalText() + if err != nil { + return err + } + if _, err = aw.Write(text); err != nil { + return err + } + if bw != nil { + return bw.Flush() + } + return nil + } + // Dereference the received pointer so we don't have outer < and >. + v := reflect.Indirect(val) + if err := tm.writeStruct(aw, v); err != nil { + return err + } + if bw != nil { + return bw.Flush() + } + return nil +} + +// Text is the same as Marshal, but returns the string directly. +func (tm *TextMarshaler) Text(pb Message) string { + var buf bytes.Buffer + tm.Marshal(&buf, pb) + return buf.String() +} + +var ( + defaultTextMarshaler = TextMarshaler{} + compactTextMarshaler = TextMarshaler{Compact: true} +) + +// TODO: consider removing some of the Marshal functions below. + +// MarshalText writes a given protocol buffer in text format. +// The only errors returned are from w. +func MarshalText(w io.Writer, pb Message) error { return defaultTextMarshaler.Marshal(w, pb) } + +// MarshalTextString is the same as MarshalText, but returns the string directly. +func MarshalTextString(pb Message) string { return defaultTextMarshaler.Text(pb) } + +// CompactText writes a given protocol buffer in compact text format (one line). +func CompactText(w io.Writer, pb Message) error { return compactTextMarshaler.Marshal(w, pb) } + +// CompactTextString is the same as CompactText, but returns the string directly. +func CompactTextString(pb Message) string { return compactTextMarshaler.Text(pb) } diff --git a/vendor/github.com/gogo/protobuf/proto/text_gogo.go b/vendor/github.com/gogo/protobuf/proto/text_gogo.go new file mode 100644 index 0000000..1d6c6aa --- /dev/null +++ b/vendor/github.com/gogo/protobuf/proto/text_gogo.go @@ -0,0 +1,57 @@ +// Protocol Buffers for Go with Gadgets +// +// Copyright (c) 2013, The GoGo Authors. All rights reserved. +// http://github.com/gogo/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. +// +// 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 + +import ( + "fmt" + "reflect" +) + +func (tm *TextMarshaler) writeEnum(w *textWriter, v reflect.Value, props *Properties) error { + m, ok := enumStringMaps[props.Enum] + if !ok { + if err := tm.writeAny(w, v, props); err != nil { + return err + } + } + key := int32(0) + if v.Kind() == reflect.Ptr { + key = int32(v.Elem().Int()) + } else { + key = int32(v.Int()) + } + s, ok := m[key] + if !ok { + if err := tm.writeAny(w, v, props); err != nil { + return err + } + } + _, err := fmt.Fprint(w, s) + return err +} diff --git a/vendor/github.com/gogo/protobuf/proto/text_parser.go b/vendor/github.com/gogo/protobuf/proto/text_parser.go new file mode 100644 index 0000000..fbb000d --- /dev/null +++ b/vendor/github.com/gogo/protobuf/proto/text_parser.go @@ -0,0 +1,998 @@ +// Protocol Buffers for Go with Gadgets +// +// Copyright (c) 2013, The GoGo Authors. All rights reserved. +// http://github.com/gogo/protobuf +// +// 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 + +// Functions for parsing the Text protocol buffer format. +// TODO: message sets. + +import ( + "encoding" + "errors" + "fmt" + "reflect" + "strconv" + "strings" + "time" + "unicode/utf8" +) + +// Error string emitted when deserializing Any and fields are already set +const anyRepeatedlyUnpacked = "Any message unpacked multiple times, or %q already set" + +type ParseError struct { + Message string + Line int // 1-based line number + Offset int // 0-based byte offset from start of input +} + +func (p *ParseError) Error() string { + if p.Line == 1 { + // show offset only for first line + return fmt.Sprintf("line 1.%d: %v", p.Offset, p.Message) + } + return fmt.Sprintf("line %d: %v", p.Line, p.Message) +} + +type token struct { + value string + err *ParseError + line int // line number + offset int // byte number from start of input, not start of line + unquoted string // the unquoted version of value, if it was a quoted string +} + +func (t *token) String() string { + if t.err == nil { + return fmt.Sprintf("%q (line=%d, offset=%d)", t.value, t.line, t.offset) + } + return fmt.Sprintf("parse error: %v", t.err) +} + +type textParser struct { + s string // remaining input + done bool // whether the parsing is finished (success or error) + backed bool // whether back() was called + offset, line int + cur token +} + +func newTextParser(s string) *textParser { + p := new(textParser) + p.s = s + p.line = 1 + p.cur.line = 1 + return p +} + +func (p *textParser) errorf(format string, a ...interface{}) *ParseError { + pe := &ParseError{fmt.Sprintf(format, a...), p.cur.line, p.cur.offset} + p.cur.err = pe + p.done = true + return pe +} + +// Numbers and identifiers are matched by [-+._A-Za-z0-9] +func isIdentOrNumberChar(c byte) bool { + switch { + case 'A' <= c && c <= 'Z', 'a' <= c && c <= 'z': + return true + case '0' <= c && c <= '9': + return true + } + switch c { + case '-', '+', '.', '_': + return true + } + return false +} + +func isWhitespace(c byte) bool { + switch c { + case ' ', '\t', '\n', '\r': + return true + } + return false +} + +func isQuote(c byte) bool { + switch c { + case '"', '\'': + return true + } + return false +} + +func (p *textParser) skipWhitespace() { + i := 0 + for i < len(p.s) && (isWhitespace(p.s[i]) || p.s[i] == '#') { + if p.s[i] == '#' { + // comment; skip to end of line or input + for i < len(p.s) && p.s[i] != '\n' { + i++ + } + if i == len(p.s) { + break + } + } + if p.s[i] == '\n' { + p.line++ + } + i++ + } + p.offset += i + p.s = p.s[i:len(p.s)] + if len(p.s) == 0 { + p.done = true + } +} + +func (p *textParser) advance() { + // Skip whitespace + p.skipWhitespace() + if p.done { + return + } + + // Start of non-whitespace + p.cur.err = nil + p.cur.offset, p.cur.line = p.offset, p.line + p.cur.unquoted = "" + switch p.s[0] { + case '<', '>', '{', '}', ':', '[', ']', ';', ',', '/': + // Single symbol + p.cur.value, p.s = p.s[0:1], p.s[1:len(p.s)] + case '"', '\'': + // Quoted string + i := 1 + for i < len(p.s) && p.s[i] != p.s[0] && p.s[i] != '\n' { + if p.s[i] == '\\' && i+1 < len(p.s) { + // skip escaped char + i++ + } + i++ + } + if i >= len(p.s) || p.s[i] != p.s[0] { + p.errorf("unmatched quote") + return + } + unq, err := unquoteC(p.s[1:i], rune(p.s[0])) + if err != nil { + p.errorf("invalid quoted string %s: %v", p.s[0:i+1], err) + return + } + p.cur.value, p.s = p.s[0:i+1], p.s[i+1:len(p.s)] + p.cur.unquoted = unq + default: + i := 0 + for i < len(p.s) && isIdentOrNumberChar(p.s[i]) { + i++ + } + if i == 0 { + p.errorf("unexpected byte %#x", p.s[0]) + return + } + p.cur.value, p.s = p.s[0:i], p.s[i:len(p.s)] + } + p.offset += len(p.cur.value) +} + +var ( + errBadUTF8 = errors.New("proto: bad UTF-8") +) + +func unquoteC(s string, quote rune) (string, error) { + // This is based on C++'s tokenizer.cc. + // Despite its name, this is *not* parsing C syntax. + // For instance, "\0" is an invalid quoted string. + + // Avoid allocation in trivial cases. + simple := true + for _, r := range s { + if r == '\\' || r == quote { + simple = false + break + } + } + if simple { + return s, nil + } + + buf := make([]byte, 0, 3*len(s)/2) + for len(s) > 0 { + r, n := utf8.DecodeRuneInString(s) + if r == utf8.RuneError && n == 1 { + return "", errBadUTF8 + } + s = s[n:] + if r != '\\' { + if r < utf8.RuneSelf { + buf = append(buf, byte(r)) + } else { + buf = append(buf, string(r)...) + } + continue + } + + ch, tail, err := unescape(s) + if err != nil { + return "", err + } + buf = append(buf, ch...) + s = tail + } + return string(buf), nil +} + +func unescape(s string) (ch string, tail string, err error) { + r, n := utf8.DecodeRuneInString(s) + if r == utf8.RuneError && n == 1 { + return "", "", errBadUTF8 + } + s = s[n:] + switch r { + case 'a': + return "\a", s, nil + case 'b': + return "\b", s, nil + case 'f': + return "\f", s, nil + case 'n': + return "\n", s, nil + case 'r': + return "\r", s, nil + case 't': + return "\t", s, nil + case 'v': + return "\v", s, nil + case '?': + return "?", s, nil // trigraph workaround + case '\'', '"', '\\': + return string(r), s, nil + case '0', '1', '2', '3', '4', '5', '6', '7': + if len(s) < 2 { + return "", "", fmt.Errorf(`\%c requires 2 following digits`, r) + } + ss := string(r) + s[:2] + s = s[2:] + i, err := strconv.ParseUint(ss, 8, 8) + if err != nil { + return "", "", fmt.Errorf(`\%s contains non-octal digits`, ss) + } + return string([]byte{byte(i)}), s, nil + case 'x', 'X', 'u', 'U': + var n int + switch r { + case 'x', 'X': + n = 2 + case 'u': + n = 4 + case 'U': + n = 8 + } + if len(s) < n { + return "", "", fmt.Errorf(`\%c requires %d following digits`, r, n) + } + ss := s[:n] + s = s[n:] + i, err := strconv.ParseUint(ss, 16, 64) + if err != nil { + return "", "", fmt.Errorf(`\%c%s contains non-hexadecimal digits`, r, ss) + } + if r == 'x' || r == 'X' { + return string([]byte{byte(i)}), s, nil + } + if i > utf8.MaxRune { + return "", "", fmt.Errorf(`\%c%s is not a valid Unicode code point`, r, ss) + } + return string(i), s, nil + } + return "", "", fmt.Errorf(`unknown escape \%c`, r) +} + +// Back off the parser by one token. Can only be done between calls to next(). +// It makes the next advance() a no-op. +func (p *textParser) back() { p.backed = true } + +// Advances the parser and returns the new current token. +func (p *textParser) next() *token { + if p.backed || p.done { + p.backed = false + return &p.cur + } + p.advance() + if p.done { + p.cur.value = "" + } else if len(p.cur.value) > 0 && isQuote(p.cur.value[0]) { + // Look for multiple quoted strings separated by whitespace, + // and concatenate them. + cat := p.cur + for { + p.skipWhitespace() + if p.done || !isQuote(p.s[0]) { + break + } + p.advance() + if p.cur.err != nil { + return &p.cur + } + cat.value += " " + p.cur.value + cat.unquoted += p.cur.unquoted + } + p.done = false // parser may have seen EOF, but we want to return cat + p.cur = cat + } + return &p.cur +} + +func (p *textParser) consumeToken(s string) error { + tok := p.next() + if tok.err != nil { + return tok.err + } + if tok.value != s { + p.back() + return p.errorf("expected %q, found %q", s, tok.value) + } + return nil +} + +// Return a RequiredNotSetError indicating which required field was not set. +func (p *textParser) missingRequiredFieldError(sv reflect.Value) *RequiredNotSetError { + st := sv.Type() + sprops := GetProperties(st) + for i := 0; i < st.NumField(); i++ { + if !isNil(sv.Field(i)) { + continue + } + + props := sprops.Prop[i] + if props.Required { + return &RequiredNotSetError{fmt.Sprintf("%v.%v", st, props.OrigName)} + } + } + return &RequiredNotSetError{fmt.Sprintf("%v.<unknown field name>", st)} // should not happen +} + +// Returns the index in the struct for the named field, as well as the parsed tag properties. +func structFieldByName(sprops *StructProperties, name string) (int, *Properties, bool) { + i, ok := sprops.decoderOrigNames[name] + if ok { + return i, sprops.Prop[i], true + } + return -1, nil, false +} + +// Consume a ':' from the input stream (if the next token is a colon), +// returning an error if a colon is needed but not present. +func (p *textParser) checkForColon(props *Properties, typ reflect.Type) *ParseError { + tok := p.next() + if tok.err != nil { + return tok.err + } + if tok.value != ":" { + // Colon is optional when the field is a group or message. + needColon := true + switch props.Wire { + case "group": + needColon = false + case "bytes": + // A "bytes" field is either a message, a string, or a repeated field; + // those three become *T, *string and []T respectively, so we can check for + // this field being a pointer to a non-string. + if typ.Kind() == reflect.Ptr { + // *T or *string + if typ.Elem().Kind() == reflect.String { + break + } + } else if typ.Kind() == reflect.Slice { + // []T or []*T + if typ.Elem().Kind() != reflect.Ptr { + break + } + } else if typ.Kind() == reflect.String { + // The proto3 exception is for a string field, + // which requires a colon. + break + } + needColon = false + } + if needColon { + return p.errorf("expected ':', found %q", tok.value) + } + p.back() + } + return nil +} + +func (p *textParser) readStruct(sv reflect.Value, terminator string) error { + st := sv.Type() + sprops := GetProperties(st) + reqCount := sprops.reqCount + var reqFieldErr error + fieldSet := make(map[string]bool) + // A struct is a sequence of "name: value", terminated by one of + // '>' or '}', or the end of the input. A name may also be + // "[extension]" or "[type/url]". + // + // The whole struct can also be an expanded Any message, like: + // [type/url] < ... struct contents ... > + for { + tok := p.next() + if tok.err != nil { + return tok.err + } + if tok.value == terminator { + break + } + if tok.value == "[" { + // Looks like an extension or an Any. + // + // TODO: Check whether we need to handle + // namespace rooted names (e.g. ".something.Foo"). + extName, err := p.consumeExtName() + if err != nil { + return err + } + + if s := strings.LastIndex(extName, "/"); s >= 0 { + // If it contains a slash, it's an Any type URL. + messageName := extName[s+1:] + mt := MessageType(messageName) + if mt == nil { + return p.errorf("unrecognized message %q in google.protobuf.Any", messageName) + } + tok = p.next() + if tok.err != nil { + return tok.err + } + // consume an optional colon + if tok.value == ":" { + tok = p.next() + if tok.err != nil { + return tok.err + } + } + var terminator string + switch tok.value { + case "<": + terminator = ">" + case "{": + terminator = "}" + default: + return p.errorf("expected '{' or '<', found %q", tok.value) + } + v := reflect.New(mt.Elem()) + if pe := p.readStruct(v.Elem(), terminator); pe != nil { + return pe + } + b, err := Marshal(v.Interface().(Message)) + if err != nil { + return p.errorf("failed to marshal message of type %q: %v", messageName, err) + } + if fieldSet["type_url"] { + return p.errorf(anyRepeatedlyUnpacked, "type_url") + } + if fieldSet["value"] { + return p.errorf(anyRepeatedlyUnpacked, "value") + } + sv.FieldByName("TypeUrl").SetString(extName) + sv.FieldByName("Value").SetBytes(b) + fieldSet["type_url"] = true + fieldSet["value"] = true + continue + } + + var desc *ExtensionDesc + // This could be faster, but it's functional. + // TODO: Do something smarter than a linear scan. + for _, d := range RegisteredExtensions(reflect.New(st).Interface().(Message)) { + if d.Name == extName { + desc = d + break + } + } + if desc == nil { + return p.errorf("unrecognized extension %q", extName) + } + + props := &Properties{} + props.Parse(desc.Tag) + + typ := reflect.TypeOf(desc.ExtensionType) + if err := p.checkForColon(props, typ); err != nil { + return err + } + + rep := desc.repeated() + + // Read the extension structure, and set it in + // the value we're constructing. + var ext reflect.Value + if !rep { + ext = reflect.New(typ).Elem() + } else { + ext = reflect.New(typ.Elem()).Elem() + } + if err := p.readAny(ext, props); err != nil { + if _, ok := err.(*RequiredNotSetError); !ok { + return err + } + reqFieldErr = err + } + ep := sv.Addr().Interface().(Message) + if !rep { + SetExtension(ep, desc, ext.Interface()) + } else { + old, err := GetExtension(ep, desc) + var sl reflect.Value + if err == nil { + sl = reflect.ValueOf(old) // existing slice + } else { + sl = reflect.MakeSlice(typ, 0, 1) + } + sl = reflect.Append(sl, ext) + SetExtension(ep, desc, sl.Interface()) + } + if err := p.consumeOptionalSeparator(); err != nil { + return err + } + continue + } + + // This is a normal, non-extension field. + name := tok.value + var dst reflect.Value + fi, props, ok := structFieldByName(sprops, name) + if ok { + dst = sv.Field(fi) + } else if oop, ok := sprops.OneofTypes[name]; ok { + // It is a oneof. + props = oop.Prop + nv := reflect.New(oop.Type.Elem()) + dst = nv.Elem().Field(0) + field := sv.Field(oop.Field) + if !field.IsNil() { + return p.errorf("field '%s' would overwrite already parsed oneof '%s'", name, sv.Type().Field(oop.Field).Name) + } + field.Set(nv) + } + if !dst.IsValid() { + return p.errorf("unknown field name %q in %v", name, st) + } + + if dst.Kind() == reflect.Map { + // Consume any colon. + if err := p.checkForColon(props, dst.Type()); err != nil { + return err + } + + // Construct the map if it doesn't already exist. + if dst.IsNil() { + dst.Set(reflect.MakeMap(dst.Type())) + } + key := reflect.New(dst.Type().Key()).Elem() + val := reflect.New(dst.Type().Elem()).Elem() + + // The map entry should be this sequence of tokens: + // < key : KEY value : VALUE > + // However, implementations may omit key or value, and technically + // we should support them in any order. See b/28924776 for a time + // this went wrong. + + tok := p.next() + var terminator string + switch tok.value { + case "<": + terminator = ">" + case "{": + terminator = "}" + default: + return p.errorf("expected '{' or '<', found %q", tok.value) + } + for { + tok := p.next() + if tok.err != nil { + return tok.err + } + if tok.value == terminator { + break + } + switch tok.value { + case "key": + if err := p.consumeToken(":"); err != nil { + return err + } + if err := p.readAny(key, props.mkeyprop); err != nil { + return err + } + if err := p.consumeOptionalSeparator(); err != nil { + return err + } + case "value": + if err := p.checkForColon(props.mvalprop, dst.Type().Elem()); err != nil { + return err + } + if err := p.readAny(val, props.mvalprop); err != nil { + return err + } + if err := p.consumeOptionalSeparator(); err != nil { + return err + } + default: + p.back() + return p.errorf(`expected "key", "value", or %q, found %q`, terminator, tok.value) + } + } + + dst.SetMapIndex(key, val) + continue + } + + // Check that it's not already set if it's not a repeated field. + if !props.Repeated && fieldSet[name] { + return p.errorf("non-repeated field %q was repeated", name) + } + + if err := p.checkForColon(props, dst.Type()); err != nil { + return err + } + + // Parse into the field. + fieldSet[name] = true + if err := p.readAny(dst, props); err != nil { + if _, ok := err.(*RequiredNotSetError); !ok { + return err + } + reqFieldErr = err + } + if props.Required { + reqCount-- + } + + if err := p.consumeOptionalSeparator(); err != nil { + return err + } + + } + + if reqCount > 0 { + return p.missingRequiredFieldError(sv) + } + return reqFieldErr +} + +// consumeExtName consumes extension name or expanded Any type URL and the +// following ']'. It returns the name or URL consumed. +func (p *textParser) consumeExtName() (string, error) { + tok := p.next() + if tok.err != nil { + return "", tok.err + } + + // If extension name or type url is quoted, it's a single token. + if len(tok.value) > 2 && isQuote(tok.value[0]) && tok.value[len(tok.value)-1] == tok.value[0] { + name, err := unquoteC(tok.value[1:len(tok.value)-1], rune(tok.value[0])) + if err != nil { + return "", err + } + return name, p.consumeToken("]") + } + + // Consume everything up to "]" + var parts []string + for tok.value != "]" { + parts = append(parts, tok.value) + tok = p.next() + if tok.err != nil { + return "", p.errorf("unrecognized type_url or extension name: %s", tok.err) + } + if p.done && tok.value != "]" { + return "", p.errorf("unclosed type_url or extension name") + } + } + return strings.Join(parts, ""), nil +} + +// consumeOptionalSeparator consumes an optional semicolon or comma. +// It is used in readStruct to provide backward compatibility. +func (p *textParser) consumeOptionalSeparator() error { + tok := p.next() + if tok.err != nil { + return tok.err + } + if tok.value != ";" && tok.value != "," { + p.back() + } + return nil +} + +func (p *textParser) readAny(v reflect.Value, props *Properties) error { + tok := p.next() + if tok.err != nil { + return tok.err + } + if tok.value == "" { + return p.errorf("unexpected EOF") + } + if len(props.CustomType) > 0 { + if props.Repeated { + t := reflect.TypeOf(v.Interface()) + if t.Kind() == reflect.Slice { + tc := reflect.TypeOf(new(Marshaler)) + ok := t.Elem().Implements(tc.Elem()) + if ok { + fv := v + flen := fv.Len() + if flen == fv.Cap() { + nav := reflect.MakeSlice(v.Type(), flen, 2*flen+1) + reflect.Copy(nav, fv) + fv.Set(nav) + } + fv.SetLen(flen + 1) + + // Read one. + p.back() + return p.readAny(fv.Index(flen), props) + } + } + } + if reflect.TypeOf(v.Interface()).Kind() == reflect.Ptr { + custom := reflect.New(props.ctype.Elem()).Interface().(Unmarshaler) + err := custom.Unmarshal([]byte(tok.unquoted)) + if err != nil { + return p.errorf("%v %v: %v", err, v.Type(), tok.value) + } + v.Set(reflect.ValueOf(custom)) + } else { + custom := reflect.New(reflect.TypeOf(v.Interface())).Interface().(Unmarshaler) + err := custom.Unmarshal([]byte(tok.unquoted)) + if err != nil { + return p.errorf("%v %v: %v", err, v.Type(), tok.value) + } + v.Set(reflect.Indirect(reflect.ValueOf(custom))) + } + return nil + } + if props.StdTime { + fv := v + p.back() + props.StdTime = false + tproto := ×tamp{} + err := p.readAny(reflect.ValueOf(tproto).Elem(), props) + props.StdTime = true + if err != nil { + return err + } + tim, err := timestampFromProto(tproto) + if err != nil { + return err + } + if props.Repeated { + t := reflect.TypeOf(v.Interface()) + if t.Kind() == reflect.Slice { + if t.Elem().Kind() == reflect.Ptr { + ts := fv.Interface().([]*time.Time) + ts = append(ts, &tim) + fv.Set(reflect.ValueOf(ts)) + return nil + } else { + ts := fv.Interface().([]time.Time) + ts = append(ts, tim) + fv.Set(reflect.ValueOf(ts)) + return nil + } + } + } + if reflect.TypeOf(v.Interface()).Kind() == reflect.Ptr { + v.Set(reflect.ValueOf(&tim)) + } else { + v.Set(reflect.Indirect(reflect.ValueOf(&tim))) + } + return nil + } + if props.StdDuration { + fv := v + p.back() + props.StdDuration = false + dproto := &duration{} + err := p.readAny(reflect.ValueOf(dproto).Elem(), props) + props.StdDuration = true + if err != nil { + return err + } + dur, err := durationFromProto(dproto) + if err != nil { + return err + } + if props.Repeated { + t := reflect.TypeOf(v.Interface()) + if t.Kind() == reflect.Slice { + if t.Elem().Kind() == reflect.Ptr { + ds := fv.Interface().([]*time.Duration) + ds = append(ds, &dur) + fv.Set(reflect.ValueOf(ds)) + return nil + } else { + ds := fv.Interface().([]time.Duration) + ds = append(ds, dur) + fv.Set(reflect.ValueOf(ds)) + return nil + } + } + } + if reflect.TypeOf(v.Interface()).Kind() == reflect.Ptr { + v.Set(reflect.ValueOf(&dur)) + } else { + v.Set(reflect.Indirect(reflect.ValueOf(&dur))) + } + return nil + } + switch fv := v; fv.Kind() { + case reflect.Slice: + at := v.Type() + if at.Elem().Kind() == reflect.Uint8 { + // Special case for []byte + if tok.value[0] != '"' && tok.value[0] != '\'' { + // Deliberately written out here, as the error after + // this switch statement would write "invalid []byte: ...", + // which is not as user-friendly. + return p.errorf("invalid string: %v", tok.value) + } + bytes := []byte(tok.unquoted) + fv.Set(reflect.ValueOf(bytes)) + return nil + } + // Repeated field. + if tok.value == "[" { + // Repeated field with list notation, like [1,2,3]. + for { + fv.Set(reflect.Append(fv, reflect.New(at.Elem()).Elem())) + err := p.readAny(fv.Index(fv.Len()-1), props) + if err != nil { + return err + } + ntok := p.next() + if ntok.err != nil { + return ntok.err + } + if ntok.value == "]" { + break + } + if ntok.value != "," { + return p.errorf("Expected ']' or ',' found %q", ntok.value) + } + } + return nil + } + // One value of the repeated field. + p.back() + fv.Set(reflect.Append(fv, reflect.New(at.Elem()).Elem())) + return p.readAny(fv.Index(fv.Len()-1), props) + case reflect.Bool: + // true/1/t/True or false/f/0/False. + switch tok.value { + case "true", "1", "t", "True": + fv.SetBool(true) + return nil + case "false", "0", "f", "False": + fv.SetBool(false) + return nil + } + case reflect.Float32, reflect.Float64: + v := tok.value + // Ignore 'f' for compatibility with output generated by C++, but don't + // remove 'f' when the value is "-inf" or "inf". + if strings.HasSuffix(v, "f") && tok.value != "-inf" && tok.value != "inf" { + v = v[:len(v)-1] + } + if f, err := strconv.ParseFloat(v, fv.Type().Bits()); err == nil { + fv.SetFloat(f) + return nil + } + case reflect.Int32: + if x, err := strconv.ParseInt(tok.value, 0, 32); err == nil { + fv.SetInt(x) + return nil + } + + if len(props.Enum) == 0 { + break + } + m, ok := enumValueMaps[props.Enum] + if !ok { + break + } + x, ok := m[tok.value] + if !ok { + break + } + fv.SetInt(int64(x)) + return nil + case reflect.Int64: + if x, err := strconv.ParseInt(tok.value, 0, 64); err == nil { + fv.SetInt(x) + return nil + } + + case reflect.Ptr: + // A basic field (indirected through pointer), or a repeated message/group + p.back() + fv.Set(reflect.New(fv.Type().Elem())) + return p.readAny(fv.Elem(), props) + case reflect.String: + if tok.value[0] == '"' || tok.value[0] == '\'' { + fv.SetString(tok.unquoted) + return nil + } + case reflect.Struct: + var terminator string + switch tok.value { + case "{": + terminator = "}" + case "<": + terminator = ">" + default: + return p.errorf("expected '{' or '<', found %q", tok.value) + } + // TODO: Handle nested messages which implement encoding.TextUnmarshaler. + return p.readStruct(fv, terminator) + case reflect.Uint32: + if x, err := strconv.ParseUint(tok.value, 0, 32); err == nil { + fv.SetUint(uint64(x)) + return nil + } + case reflect.Uint64: + if x, err := strconv.ParseUint(tok.value, 0, 64); err == nil { + fv.SetUint(x) + return nil + } + } + return p.errorf("invalid %v: %v", v.Type(), tok.value) +} + +// UnmarshalText reads a protocol buffer in Text format. UnmarshalText resets pb +// before starting to unmarshal, so any existing data in pb is always removed. +// If a required field is not set and no other error occurs, +// UnmarshalText returns *RequiredNotSetError. +func UnmarshalText(s string, pb Message) error { + if um, ok := pb.(encoding.TextUnmarshaler); ok { + return um.UnmarshalText([]byte(s)) + } + pb.Reset() + v := reflect.ValueOf(pb) + return newTextParser(s).readStruct(v.Elem(), "") +} diff --git a/vendor/github.com/gogo/protobuf/proto/timestamp.go b/vendor/github.com/gogo/protobuf/proto/timestamp.go new file mode 100644 index 0000000..9324f65 --- /dev/null +++ b/vendor/github.com/gogo/protobuf/proto/timestamp.go @@ -0,0 +1,113 @@ +// Go support for Protocol Buffers - Google's data interchange format +// +// Copyright 2016 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 + +// This file implements operations on google.protobuf.Timestamp. + +import ( + "errors" + "fmt" + "time" +) + +const ( + // Seconds field of the earliest valid Timestamp. + // This is time.Date(1, 1, 1, 0, 0, 0, 0, time.UTC).Unix(). + minValidSeconds = -62135596800 + // Seconds field just after the latest valid Timestamp. + // This is time.Date(10000, 1, 1, 0, 0, 0, 0, time.UTC).Unix(). + maxValidSeconds = 253402300800 +) + +// validateTimestamp determines whether a Timestamp is valid. +// A valid timestamp represents a time in the range +// [0001-01-01, 10000-01-01) and has a Nanos field +// in the range [0, 1e9). +// +// If the Timestamp is valid, validateTimestamp returns nil. +// Otherwise, it returns an error that describes +// the problem. +// +// Every valid Timestamp can be represented by a time.Time, but the converse is not true. +func validateTimestamp(ts *timestamp) error { + if ts == nil { + return errors.New("timestamp: nil Timestamp") + } + if ts.Seconds < minValidSeconds { + return fmt.Errorf("timestamp: %#v before 0001-01-01", ts) + } + if ts.Seconds >= maxValidSeconds { + return fmt.Errorf("timestamp: %#v after 10000-01-01", ts) + } + if ts.Nanos < 0 || ts.Nanos >= 1e9 { + return fmt.Errorf("timestamp: %#v: nanos not in range [0, 1e9)", ts) + } + return nil +} + +// TimestampFromProto converts a google.protobuf.Timestamp proto to a time.Time. +// It returns an error if the argument is invalid. +// +// Unlike most Go functions, if Timestamp returns an error, the first return value +// is not the zero time.Time. Instead, it is the value obtained from the +// time.Unix function when passed the contents of the Timestamp, in the UTC +// locale. This may or may not be a meaningful time; many invalid Timestamps +// do map to valid time.Times. +// +// A nil Timestamp returns an error. The first return value in that case is +// undefined. +func timestampFromProto(ts *timestamp) (time.Time, error) { + // Don't return the zero value on error, because corresponds to a valid + // timestamp. Instead return whatever time.Unix gives us. + var t time.Time + if ts == nil { + t = time.Unix(0, 0).UTC() // treat nil like the empty Timestamp + } else { + t = time.Unix(ts.Seconds, int64(ts.Nanos)).UTC() + } + return t, validateTimestamp(ts) +} + +// TimestampProto converts the time.Time to a google.protobuf.Timestamp proto. +// It returns an error if the resulting Timestamp is invalid. +func timestampProto(t time.Time) (*timestamp, error) { + seconds := t.Unix() + nanos := int32(t.Sub(time.Unix(seconds, 0))) + ts := ×tamp{ + Seconds: seconds, + Nanos: nanos, + } + if err := validateTimestamp(ts); err != nil { + return nil, err + } + return ts, nil +} diff --git a/vendor/github.com/gogo/protobuf/proto/timestamp_gogo.go b/vendor/github.com/gogo/protobuf/proto/timestamp_gogo.go new file mode 100644 index 0000000..38439fa --- /dev/null +++ b/vendor/github.com/gogo/protobuf/proto/timestamp_gogo.go @@ -0,0 +1,49 @@ +// Protocol Buffers for Go with Gadgets +// +// Copyright (c) 2016, The GoGo Authors. All rights reserved. +// http://github.com/gogo/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. +// +// 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 + +import ( + "reflect" + "time" +) + +var timeType = reflect.TypeOf((*time.Time)(nil)).Elem() + +type timestamp struct { + Seconds int64 `protobuf:"varint,1,opt,name=seconds,proto3" json:"seconds,omitempty"` + Nanos int32 `protobuf:"varint,2,opt,name=nanos,proto3" json:"nanos,omitempty"` +} + +func (m *timestamp) Reset() { *m = timestamp{} } +func (*timestamp) ProtoMessage() {} +func (*timestamp) String() string { return "timestamp<string>" } + +func init() { + RegisterType((*timestamp)(nil), "gogo.protobuf.proto.timestamp") +} |