luet/vendor/google.golang.org/protobuf/internal/impl/codec_messageset.go
Itxaka 4adc0dc9b9
Use goreleaser to build and release (#244)
Instead of using gox on one side and an action to release, we can merge
them together with goreleaser which will build for extra targets (arm,
mips if needed in the future) and it also takes care of creating
checksums, a source archive, and a changelog and creating a release with
all the artifacts.

All binaries should respect the old naming convention, so any scripts
out there should still work.

Signed-off-by: Itxaka <igarcia@suse.com>
2021-08-11 08:30:55 +02:00

124 lines
3.2 KiB
Go

// Copyright 2019 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package impl
import (
"sort"
"google.golang.org/protobuf/encoding/protowire"
"google.golang.org/protobuf/internal/encoding/messageset"
"google.golang.org/protobuf/internal/errors"
"google.golang.org/protobuf/internal/flags"
)
func sizeMessageSet(mi *MessageInfo, p pointer, opts marshalOptions) (size int) {
if !flags.ProtoLegacy {
return 0
}
ext := *p.Apply(mi.extensionOffset).Extensions()
for _, x := range ext {
xi := getExtensionFieldInfo(x.Type())
if xi.funcs.size == nil {
continue
}
num, _ := protowire.DecodeTag(xi.wiretag)
size += messageset.SizeField(num)
size += xi.funcs.size(x.Value(), protowire.SizeTag(messageset.FieldMessage), opts)
}
if u := mi.getUnknownBytes(p); u != nil {
size += messageset.SizeUnknown(*u)
}
return size
}
func marshalMessageSet(mi *MessageInfo, b []byte, p pointer, opts marshalOptions) ([]byte, error) {
if !flags.ProtoLegacy {
return b, errors.New("no support for message_set_wire_format")
}
ext := *p.Apply(mi.extensionOffset).Extensions()
switch len(ext) {
case 0:
case 1:
// Fast-path for one extension: Don't bother sorting the keys.
for _, x := range ext {
var err error
b, err = marshalMessageSetField(mi, b, x, opts)
if err != nil {
return b, err
}
}
default:
// Sort the keys to provide a deterministic encoding.
// Not sure this is required, but the old code does it.
keys := make([]int, 0, len(ext))
for k := range ext {
keys = append(keys, int(k))
}
sort.Ints(keys)
for _, k := range keys {
var err error
b, err = marshalMessageSetField(mi, b, ext[int32(k)], opts)
if err != nil {
return b, err
}
}
}
if u := mi.getUnknownBytes(p); u != nil {
var err error
b, err = messageset.AppendUnknown(b, *u)
if err != nil {
return b, err
}
}
return b, nil
}
func marshalMessageSetField(mi *MessageInfo, b []byte, x ExtensionField, opts marshalOptions) ([]byte, error) {
xi := getExtensionFieldInfo(x.Type())
num, _ := protowire.DecodeTag(xi.wiretag)
b = messageset.AppendFieldStart(b, num)
b, err := xi.funcs.marshal(b, x.Value(), protowire.EncodeTag(messageset.FieldMessage, protowire.BytesType), opts)
if err != nil {
return b, err
}
b = messageset.AppendFieldEnd(b)
return b, nil
}
func unmarshalMessageSet(mi *MessageInfo, b []byte, p pointer, opts unmarshalOptions) (out unmarshalOutput, err error) {
if !flags.ProtoLegacy {
return out, errors.New("no support for message_set_wire_format")
}
ep := p.Apply(mi.extensionOffset).Extensions()
if *ep == nil {
*ep = make(map[int32]ExtensionField)
}
ext := *ep
initialized := true
err = messageset.Unmarshal(b, true, func(num protowire.Number, v []byte) error {
o, err := mi.unmarshalExtension(v, num, protowire.BytesType, ext, opts)
if err == errUnknown {
u := mi.mutableUnknownBytes(p)
*u = protowire.AppendTag(*u, num, protowire.BytesType)
*u = append(*u, v...)
return nil
}
if !o.initialized {
initialized = false
}
return err
})
out.n = len(b)
out.initialized = initialized
return out, err
}