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// Copyright 2019 The Go Authors. All rights reserved. |
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// Use of this source code is governed by a BSD-style |
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// license that can be found in the LICENSE file. |
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package impl |
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import ( |
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"fmt" |
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"reflect" |
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"sync" |
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|
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"google.golang.org/protobuf/encoding/protowire" |
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"google.golang.org/protobuf/internal/errors" |
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"google.golang.org/protobuf/proto" |
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pref "google.golang.org/protobuf/reflect/protoreflect" |
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preg "google.golang.org/protobuf/reflect/protoregistry" |
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piface "google.golang.org/protobuf/runtime/protoiface" |
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) |
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type errInvalidUTF8 struct{} |
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func (errInvalidUTF8) Error() string { return "string field contains invalid UTF-8" } |
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func (errInvalidUTF8) InvalidUTF8() bool { return true } |
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func (errInvalidUTF8) Unwrap() error { return errors.Error } |
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// initOneofFieldCoders initializes the fast-path functions for the fields in a oneof. |
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// |
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// For size, marshal, and isInit operations, functions are set only on the first field |
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// in the oneof. The functions are called when the oneof is non-nil, and will dispatch |
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// to the appropriate field-specific function as necessary. |
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// |
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// The unmarshal function is set on each field individually as usual. |
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func (mi *MessageInfo) initOneofFieldCoders(od pref.OneofDescriptor, si structInfo) { |
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fs := si.oneofsByName[od.Name()] |
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ft := fs.Type |
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oneofFields := make(map[reflect.Type]*coderFieldInfo) |
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needIsInit := false |
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fields := od.Fields() |
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for i, lim := 0, fields.Len(); i < lim; i++ { |
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fd := od.Fields().Get(i) |
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num := fd.Number() |
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// Make a copy of the original coderFieldInfo for use in unmarshaling. |
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// |
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// oneofFields[oneofType].funcs.marshal is the field-specific marshal function. |
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// |
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// mi.coderFields[num].marshal is set on only the first field in the oneof, |
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// and dispatches to the field-specific marshaler in oneofFields. |
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cf := *mi.coderFields[num] |
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ot := si.oneofWrappersByNumber[num] |
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cf.ft = ot.Field(0).Type |
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cf.mi, cf.funcs = fieldCoder(fd, cf.ft) |
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oneofFields[ot] = &cf |
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if cf.funcs.isInit != nil { |
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needIsInit = true |
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} |
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mi.coderFields[num].funcs.unmarshal = func(b []byte, p pointer, wtyp protowire.Type, f *coderFieldInfo, opts unmarshalOptions) (unmarshalOutput, error) { |
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var vw reflect.Value // pointer to wrapper type |
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vi := p.AsValueOf(ft).Elem() // oneof field value of interface kind |
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if !vi.IsNil() && !vi.Elem().IsNil() && vi.Elem().Elem().Type() == ot { |
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vw = vi.Elem() |
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} else { |
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vw = reflect.New(ot) |
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} |
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out, err := cf.funcs.unmarshal(b, pointerOfValue(vw).Apply(zeroOffset), wtyp, &cf, opts) |
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if err != nil { |
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return out, err |
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} |
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vi.Set(vw) |
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return out, nil |
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} |
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} |
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getInfo := func(p pointer) (pointer, *coderFieldInfo) { |
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v := p.AsValueOf(ft).Elem() |
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if v.IsNil() { |
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return pointer{}, nil |
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} |
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v = v.Elem() // interface -> *struct |
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if v.IsNil() { |
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return pointer{}, nil |
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} |
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return pointerOfValue(v).Apply(zeroOffset), oneofFields[v.Elem().Type()] |
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} |
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first := mi.coderFields[od.Fields().Get(0).Number()] |
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first.funcs.size = func(p pointer, _ *coderFieldInfo, opts marshalOptions) int { |
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p, info := getInfo(p) |
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if info == nil || info.funcs.size == nil { |
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return 0 |
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} |
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return info.funcs.size(p, info, opts) |
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} |
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first.funcs.marshal = func(b []byte, p pointer, _ *coderFieldInfo, opts marshalOptions) ([]byte, error) { |
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p, info := getInfo(p) |
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if info == nil || info.funcs.marshal == nil { |
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return b, nil |
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} |
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return info.funcs.marshal(b, p, info, opts) |
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} |
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first.funcs.merge = func(dst, src pointer, _ *coderFieldInfo, opts mergeOptions) { |
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srcp, srcinfo := getInfo(src) |
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if srcinfo == nil || srcinfo.funcs.merge == nil { |
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return |
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} |
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dstp, dstinfo := getInfo(dst) |
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if dstinfo != srcinfo { |
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dst.AsValueOf(ft).Elem().Set(reflect.New(src.AsValueOf(ft).Elem().Elem().Elem().Type())) |
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dstp = pointerOfValue(dst.AsValueOf(ft).Elem().Elem()).Apply(zeroOffset) |
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} |
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srcinfo.funcs.merge(dstp, srcp, srcinfo, opts) |
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} |
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if needIsInit { |
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first.funcs.isInit = func(p pointer, _ *coderFieldInfo) error { |
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p, info := getInfo(p) |
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if info == nil || info.funcs.isInit == nil { |
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return nil |
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} |
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return info.funcs.isInit(p, info) |
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} |
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} |
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} |
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func makeWeakMessageFieldCoder(fd pref.FieldDescriptor) pointerCoderFuncs { |
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var once sync.Once |
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var messageType pref.MessageType |
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lazyInit := func() { |
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once.Do(func() { |
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messageName := fd.Message().FullName() |
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messageType, _ = preg.GlobalTypes.FindMessageByName(messageName) |
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}) |
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} |
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return pointerCoderFuncs{ |
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size: func(p pointer, f *coderFieldInfo, opts marshalOptions) int { |
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m, ok := p.WeakFields().get(f.num) |
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if !ok { |
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return 0 |
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} |
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lazyInit() |
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if messageType == nil { |
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panic(fmt.Sprintf("weak message %v is not linked in", fd.Message().FullName())) |
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} |
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return sizeMessage(m, f.tagsize, opts) |
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}, |
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marshal: func(b []byte, p pointer, f *coderFieldInfo, opts marshalOptions) ([]byte, error) { |
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m, ok := p.WeakFields().get(f.num) |
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if !ok { |
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return b, nil |
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} |
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lazyInit() |
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if messageType == nil { |
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panic(fmt.Sprintf("weak message %v is not linked in", fd.Message().FullName())) |
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} |
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return appendMessage(b, m, f.wiretag, opts) |
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}, |
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unmarshal: func(b []byte, p pointer, wtyp protowire.Type, f *coderFieldInfo, opts unmarshalOptions) (unmarshalOutput, error) { |
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fs := p.WeakFields() |
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m, ok := fs.get(f.num) |
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if !ok { |
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lazyInit() |
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if messageType == nil { |
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return unmarshalOutput{}, errUnknown |
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} |
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m = messageType.New().Interface() |
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fs.set(f.num, m) |
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} |
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return consumeMessage(b, m, wtyp, opts) |
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}, |
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isInit: func(p pointer, f *coderFieldInfo) error { |
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m, ok := p.WeakFields().get(f.num) |
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if !ok { |
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return nil |
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} |
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return proto.CheckInitialized(m) |
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}, |
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merge: func(dst, src pointer, f *coderFieldInfo, opts mergeOptions) { |
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sm, ok := src.WeakFields().get(f.num) |
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if !ok { |
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return |
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} |
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dm, ok := dst.WeakFields().get(f.num) |
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if !ok { |
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lazyInit() |
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if messageType == nil { |
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panic(fmt.Sprintf("weak message %v is not linked in", fd.Message().FullName())) |
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} |
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dm = messageType.New().Interface() |
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dst.WeakFields().set(f.num, dm) |
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} |
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opts.Merge(dm, sm) |
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}, |
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} |
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} |
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func makeMessageFieldCoder(fd pref.FieldDescriptor, ft reflect.Type) pointerCoderFuncs { |
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if mi := getMessageInfo(ft); mi != nil { |
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funcs := pointerCoderFuncs{ |
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size: sizeMessageInfo, |
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marshal: appendMessageInfo, |
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unmarshal: consumeMessageInfo, |
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merge: mergeMessage, |
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} |
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if needsInitCheck(mi.Desc) { |
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funcs.isInit = isInitMessageInfo |
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} |
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return funcs |
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} else { |
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return pointerCoderFuncs{ |
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size: func(p pointer, f *coderFieldInfo, opts marshalOptions) int { |
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m := asMessage(p.AsValueOf(ft).Elem()) |
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return sizeMessage(m, f.tagsize, opts) |
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}, |
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marshal: func(b []byte, p pointer, f *coderFieldInfo, opts marshalOptions) ([]byte, error) { |
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m := asMessage(p.AsValueOf(ft).Elem()) |
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return appendMessage(b, m, f.wiretag, opts) |
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}, |
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unmarshal: func(b []byte, p pointer, wtyp protowire.Type, f *coderFieldInfo, opts unmarshalOptions) (unmarshalOutput, error) { |
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mp := p.AsValueOf(ft).Elem() |
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if mp.IsNil() { |
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mp.Set(reflect.New(ft.Elem())) |
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} |
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return consumeMessage(b, asMessage(mp), wtyp, opts) |
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}, |
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isInit: func(p pointer, f *coderFieldInfo) error { |
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m := asMessage(p.AsValueOf(ft).Elem()) |
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return proto.CheckInitialized(m) |
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}, |
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merge: mergeMessage, |
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} |
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} |
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} |
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func sizeMessageInfo(p pointer, f *coderFieldInfo, opts marshalOptions) int { |
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return protowire.SizeBytes(f.mi.sizePointer(p.Elem(), opts)) + f.tagsize |
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} |
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func appendMessageInfo(b []byte, p pointer, f *coderFieldInfo, opts marshalOptions) ([]byte, error) { |
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b = protowire.AppendVarint(b, f.wiretag) |
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b = protowire.AppendVarint(b, uint64(f.mi.sizePointer(p.Elem(), opts))) |
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return f.mi.marshalAppendPointer(b, p.Elem(), opts) |
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} |
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func consumeMessageInfo(b []byte, p pointer, wtyp protowire.Type, f *coderFieldInfo, opts unmarshalOptions) (out unmarshalOutput, err error) { |
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if wtyp != protowire.BytesType { |
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return out, errUnknown |
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} |
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v, n := protowire.ConsumeBytes(b) |
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if n < 0 { |
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return out, errDecode |
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} |
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if p.Elem().IsNil() { |
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p.SetPointer(pointerOfValue(reflect.New(f.mi.GoReflectType.Elem()))) |
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} |
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o, err := f.mi.unmarshalPointer(v, p.Elem(), 0, opts) |
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if err != nil { |
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return out, err |
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} |
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out.n = n |
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out.initialized = o.initialized |
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return out, nil |
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} |
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func isInitMessageInfo(p pointer, f *coderFieldInfo) error { |
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return f.mi.checkInitializedPointer(p.Elem()) |
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} |
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func sizeMessage(m proto.Message, tagsize int, _ marshalOptions) int { |
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return protowire.SizeBytes(proto.Size(m)) + tagsize |
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} |
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func appendMessage(b []byte, m proto.Message, wiretag uint64, opts marshalOptions) ([]byte, error) { |
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b = protowire.AppendVarint(b, wiretag) |
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b = protowire.AppendVarint(b, uint64(proto.Size(m))) |
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return opts.Options().MarshalAppend(b, m) |
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} |
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func consumeMessage(b []byte, m proto.Message, wtyp protowire.Type, opts unmarshalOptions) (out unmarshalOutput, err error) { |
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if wtyp != protowire.BytesType { |
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return out, errUnknown |
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} |
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v, n := protowire.ConsumeBytes(b) |
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if n < 0 { |
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return out, errDecode |
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} |
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o, err := opts.Options().UnmarshalState(piface.UnmarshalInput{ |
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Buf: v, |
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Message: m.ProtoReflect(), |
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}) |
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if err != nil { |
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return out, err |
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} |
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out.n = n |
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out.initialized = o.Flags&piface.UnmarshalInitialized != 0 |
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return out, nil |
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} |
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func sizeMessageValue(v pref.Value, tagsize int, opts marshalOptions) int { |
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m := v.Message().Interface() |
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return sizeMessage(m, tagsize, opts) |
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} |
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func appendMessageValue(b []byte, v pref.Value, wiretag uint64, opts marshalOptions) ([]byte, error) { |
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m := v.Message().Interface() |
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return appendMessage(b, m, wiretag, opts) |
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} |
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func consumeMessageValue(b []byte, v pref.Value, _ protowire.Number, wtyp protowire.Type, opts unmarshalOptions) (pref.Value, unmarshalOutput, error) { |
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m := v.Message().Interface() |
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out, err := consumeMessage(b, m, wtyp, opts) |
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return v, out, err |
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} |
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func isInitMessageValue(v pref.Value) error { |
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m := v.Message().Interface() |
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return proto.CheckInitialized(m) |
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} |
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var coderMessageValue = valueCoderFuncs{ |
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size: sizeMessageValue, |
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marshal: appendMessageValue, |
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unmarshal: consumeMessageValue, |
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isInit: isInitMessageValue, |
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merge: mergeMessageValue, |
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} |
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func sizeGroupValue(v pref.Value, tagsize int, opts marshalOptions) int { |
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m := v.Message().Interface() |
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return sizeGroup(m, tagsize, opts) |
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} |
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func appendGroupValue(b []byte, v pref.Value, wiretag uint64, opts marshalOptions) ([]byte, error) { |
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m := v.Message().Interface() |
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return appendGroup(b, m, wiretag, opts) |
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} |
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333 |
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func consumeGroupValue(b []byte, v pref.Value, num protowire.Number, wtyp protowire.Type, opts unmarshalOptions) (pref.Value, unmarshalOutput, error) { |
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m := v.Message().Interface() |
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out, err := consumeGroup(b, m, num, wtyp, opts) |
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return v, out, err |
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} |
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339 |
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var coderGroupValue = valueCoderFuncs{ |
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size: sizeGroupValue, |
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342 |
marshal: appendGroupValue, |
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unmarshal: consumeGroupValue, |
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isInit: isInitMessageValue, |
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merge: mergeMessageValue, |
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} |
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347 |
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348 |
func makeGroupFieldCoder(fd pref.FieldDescriptor, ft reflect.Type) pointerCoderFuncs { |
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num := fd.Number() |
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350 |
if mi := getMessageInfo(ft); mi != nil { |
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funcs := pointerCoderFuncs{ |
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size: sizeGroupType, |
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marshal: appendGroupType, |
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unmarshal: consumeGroupType, |
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merge: mergeMessage, |
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} |
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357 |
if needsInitCheck(mi.Desc) { |
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358 |
funcs.isInit = isInitMessageInfo |
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} |
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360 |
return funcs |
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361 |
} else { |
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362 |
return pointerCoderFuncs{ |
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363 |
size: func(p pointer, f *coderFieldInfo, opts marshalOptions) int { |
|
364 |
m := asMessage(p.AsValueOf(ft).Elem()) |
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365 |
return sizeGroup(m, f.tagsize, opts) |
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366 |
}, |
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367 |
marshal: func(b []byte, p pointer, f *coderFieldInfo, opts marshalOptions) ([]byte, error) { |
|
368 |
m := asMessage(p.AsValueOf(ft).Elem()) |
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369 |
return appendGroup(b, m, f.wiretag, opts) |
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370 |
}, |
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371 |
unmarshal: func(b []byte, p pointer, wtyp protowire.Type, f *coderFieldInfo, opts unmarshalOptions) (unmarshalOutput, error) { |
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372 |
mp := p.AsValueOf(ft).Elem() |
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373 |
if mp.IsNil() { |
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374 |
mp.Set(reflect.New(ft.Elem())) |
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} |
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376 |
return consumeGroup(b, asMessage(mp), num, wtyp, opts) |
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377 |
}, |
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378 |
isInit: func(p pointer, f *coderFieldInfo) error { |
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379 |
m := asMessage(p.AsValueOf(ft).Elem()) |
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380 |
return proto.CheckInitialized(m) |
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}, |
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382 |
merge: mergeMessage, |
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383 |
} |
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384 |
} |
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385 |
} |
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386 |
|
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func sizeGroupType(p pointer, f *coderFieldInfo, opts marshalOptions) int { |
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388 |
return 2*f.tagsize + f.mi.sizePointer(p.Elem(), opts) |
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} |
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|
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func appendGroupType(b []byte, p pointer, f *coderFieldInfo, opts marshalOptions) ([]byte, error) { |
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392 |
b = protowire.AppendVarint(b, f.wiretag) // start group |
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b, err := f.mi.marshalAppendPointer(b, p.Elem(), opts) |
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394 |
b = protowire.AppendVarint(b, f.wiretag+1) // end group |
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return b, err |
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} |
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397 |
|
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398 |
func consumeGroupType(b []byte, p pointer, wtyp protowire.Type, f *coderFieldInfo, opts unmarshalOptions) (out unmarshalOutput, err error) { |
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399 |
if wtyp != protowire.StartGroupType { |
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400 |
return out, errUnknown |
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401 |
} |
|
402 |
if p.Elem().IsNil() { |
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403 |
p.SetPointer(pointerOfValue(reflect.New(f.mi.GoReflectType.Elem()))) |
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404 |
} |
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405 |
return f.mi.unmarshalPointer(b, p.Elem(), f.num, opts) |
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406 |
} |
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407 |
|
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408 |
func sizeGroup(m proto.Message, tagsize int, _ marshalOptions) int { |
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409 |
return 2*tagsize + proto.Size(m) |
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410 |
} |
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411 |
|
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412 |
func appendGroup(b []byte, m proto.Message, wiretag uint64, opts marshalOptions) ([]byte, error) { |
|
413 |
b = protowire.AppendVarint(b, wiretag) // start group |
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414 |
b, err := opts.Options().MarshalAppend(b, m) |
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415 |
b = protowire.AppendVarint(b, wiretag+1) // end group |
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416 |
return b, err |
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417 |
} |
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418 |
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|
419 |
func consumeGroup(b []byte, m proto.Message, num protowire.Number, wtyp protowire.Type, opts unmarshalOptions) (out unmarshalOutput, err error) { |
|
420 |
if wtyp != protowire.StartGroupType { |
|
421 |
return out, errUnknown |
|
422 |
} |
|
423 |
b, n := protowire.ConsumeGroup(num, b) |
|
424 |
if n < 0 { |
|
425 |
return out, errDecode |
|
426 |
} |
|
427 |
o, err := opts.Options().UnmarshalState(piface.UnmarshalInput{ |
|
428 |
Buf: b, |
|
429 |
Message: m.ProtoReflect(), |
|
430 |
}) |
|
431 |
if err != nil { |
|
432 |
return out, err |
|
433 |
} |
|
434 |
out.n = n |
|
435 |
out.initialized = o.Flags&piface.UnmarshalInitialized != 0 |
|
436 |
return out, nil |
|
437 |
} |
|
438 |
|
|
439 |
func makeMessageSliceFieldCoder(fd pref.FieldDescriptor, ft reflect.Type) pointerCoderFuncs { |
|
440 |
if mi := getMessageInfo(ft); mi != nil { |
|
441 |
funcs := pointerCoderFuncs{ |
|
442 |
size: sizeMessageSliceInfo, |
|
443 |
marshal: appendMessageSliceInfo, |
|
444 |
unmarshal: consumeMessageSliceInfo, |
|
445 |
merge: mergeMessageSlice, |
|
446 |
} |
|
447 |
if needsInitCheck(mi.Desc) { |
|
448 |
funcs.isInit = isInitMessageSliceInfo |
|
449 |
} |
|
450 |
return funcs |
|
451 |
} |
|
452 |
return pointerCoderFuncs{ |
|
453 |
size: func(p pointer, f *coderFieldInfo, opts marshalOptions) int { |
|
454 |
return sizeMessageSlice(p, ft, f.tagsize, opts) |
|
455 |
}, |
|
456 |
marshal: func(b []byte, p pointer, f *coderFieldInfo, opts marshalOptions) ([]byte, error) { |
|
457 |
return appendMessageSlice(b, p, f.wiretag, ft, opts) |
|
458 |
}, |
|
459 |
unmarshal: func(b []byte, p pointer, wtyp protowire.Type, f *coderFieldInfo, opts unmarshalOptions) (unmarshalOutput, error) { |
|
460 |
return consumeMessageSlice(b, p, ft, wtyp, opts) |
|
461 |
}, |
|
462 |
isInit: func(p pointer, f *coderFieldInfo) error { |
|
463 |
return isInitMessageSlice(p, ft) |
|
464 |
}, |
|
465 |
merge: mergeMessageSlice, |
|
466 |
} |
|
467 |
} |
|
468 |
|
|
469 |
func sizeMessageSliceInfo(p pointer, f *coderFieldInfo, opts marshalOptions) int { |
|
470 |
s := p.PointerSlice() |
|
471 |
n := 0 |
|
472 |
for _, v := range s { |
|
473 |
n += protowire.SizeBytes(f.mi.sizePointer(v, opts)) + f.tagsize |
|
474 |
} |
|
475 |
return n |
|
476 |
} |
|
477 |
|
|
478 |
func appendMessageSliceInfo(b []byte, p pointer, f *coderFieldInfo, opts marshalOptions) ([]byte, error) { |
|
479 |
s := p.PointerSlice() |
|
480 |
var err error |
|
481 |
for _, v := range s { |
|
482 |
b = protowire.AppendVarint(b, f.wiretag) |
|
483 |
siz := f.mi.sizePointer(v, opts) |
|
484 |
b = protowire.AppendVarint(b, uint64(siz)) |
|
485 |
b, err = f.mi.marshalAppendPointer(b, v, opts) |
|
486 |
if err != nil { |
|
487 |
return b, err |
|
488 |
} |
|
489 |
} |
|
490 |
return b, nil |
|
491 |
} |
|
492 |
|
|
493 |
func consumeMessageSliceInfo(b []byte, p pointer, wtyp protowire.Type, f *coderFieldInfo, opts unmarshalOptions) (out unmarshalOutput, err error) { |
|
494 |
if wtyp != protowire.BytesType { |
|
495 |
return out, errUnknown |
|
496 |
} |
|
497 |
v, n := protowire.ConsumeBytes(b) |
|
498 |
if n < 0 { |
|
499 |
return out, errDecode |
|
500 |
} |
|
501 |
m := reflect.New(f.mi.GoReflectType.Elem()).Interface() |
|
502 |
mp := pointerOfIface(m) |
|
503 |
o, err := f.mi.unmarshalPointer(v, mp, 0, opts) |
|
504 |
if err != nil { |
|
505 |
return out, err |
|
506 |
} |
|
507 |
p.AppendPointerSlice(mp) |
|
508 |
out.n = n |
|
509 |
out.initialized = o.initialized |
|
510 |
return out, nil |
|
511 |
} |
|
512 |
|
|
513 |
func isInitMessageSliceInfo(p pointer, f *coderFieldInfo) error { |
|
514 |
s := p.PointerSlice() |
|
515 |
for _, v := range s { |
|
516 |
if err := f.mi.checkInitializedPointer(v); err != nil { |
|
517 |
return err |
|
518 |
} |
|
519 |
} |
|
520 |
return nil |
|
521 |
} |
|
522 |
|
|
523 |
func sizeMessageSlice(p pointer, goType reflect.Type, tagsize int, _ marshalOptions) int { |
|
524 |
s := p.PointerSlice() |
|
525 |
n := 0 |
|
526 |
for _, v := range s { |
|
527 |
m := asMessage(v.AsValueOf(goType.Elem())) |
|
528 |
n += protowire.SizeBytes(proto.Size(m)) + tagsize |
|
529 |
} |
|
530 |
return n |
|
531 |
} |
|
532 |
|
|
533 |
func appendMessageSlice(b []byte, p pointer, wiretag uint64, goType reflect.Type, opts marshalOptions) ([]byte, error) { |
|
534 |
s := p.PointerSlice() |
|
535 |
var err error |
|
536 |
for _, v := range s { |
|
537 |
m := asMessage(v.AsValueOf(goType.Elem())) |
|
538 |
b = protowire.AppendVarint(b, wiretag) |
|
539 |
siz := proto.Size(m) |
|
540 |
b = protowire.AppendVarint(b, uint64(siz)) |
|
541 |
b, err = opts.Options().MarshalAppend(b, m) |
|
542 |
if err != nil { |
|
543 |
return b, err |
|
544 |
} |
|
545 |
} |
|
546 |
return b, nil |
|
547 |
} |
|
548 |
|
|
549 |
func consumeMessageSlice(b []byte, p pointer, goType reflect.Type, wtyp protowire.Type, opts unmarshalOptions) (out unmarshalOutput, err error) { |
|
550 |
if wtyp != protowire.BytesType { |
|
551 |
return out, errUnknown |
|
552 |
} |
|
553 |
v, n := protowire.ConsumeBytes(b) |
|
554 |
if n < 0 { |
|
555 |
return out, errDecode |
|
556 |
} |
|
557 |
mp := reflect.New(goType.Elem()) |
|
558 |
o, err := opts.Options().UnmarshalState(piface.UnmarshalInput{ |
|
559 |
Buf: v, |
|
560 |
Message: asMessage(mp).ProtoReflect(), |
|
561 |
}) |
|
562 |
if err != nil { |
|
563 |
return out, err |
|
564 |
} |
|
565 |
p.AppendPointerSlice(pointerOfValue(mp)) |
|
566 |
out.n = n |
|
567 |
out.initialized = o.Flags&piface.UnmarshalInitialized != 0 |
|
568 |
return out, nil |
|
569 |
} |
|
570 |
|
|
571 |
func isInitMessageSlice(p pointer, goType reflect.Type) error { |
|
572 |
s := p.PointerSlice() |
|
573 |
for _, v := range s { |
|
574 |
m := asMessage(v.AsValueOf(goType.Elem())) |
|
575 |
if err := proto.CheckInitialized(m); err != nil { |
|
576 |
return err |
|
577 |
} |
|
578 |
} |
|
579 |
return nil |
|
580 |
} |
|
581 |
|
|
582 |
// Slices of messages |
|
583 |
|
|
584 |
func sizeMessageSliceValue(listv pref.Value, tagsize int, opts marshalOptions) int { |
|
585 |
list := listv.List() |
|
586 |
n := 0 |
|
587 |
for i, llen := 0, list.Len(); i < llen; i++ { |
|
588 |
m := list.Get(i).Message().Interface() |
|
589 |
n += protowire.SizeBytes(proto.Size(m)) + tagsize |
|
590 |
} |
|
591 |
return n |
|
592 |
} |
|
593 |
|
|
594 |
func appendMessageSliceValue(b []byte, listv pref.Value, wiretag uint64, opts marshalOptions) ([]byte, error) { |
|
595 |
list := listv.List() |
|
596 |
mopts := opts.Options() |
|
597 |
for i, llen := 0, list.Len(); i < llen; i++ { |
|
598 |
m := list.Get(i).Message().Interface() |
|
599 |
b = protowire.AppendVarint(b, wiretag) |
|
600 |
siz := proto.Size(m) |
|
601 |
b = protowire.AppendVarint(b, uint64(siz)) |
|
602 |
var err error |
|
603 |
b, err = mopts.MarshalAppend(b, m) |
|
604 |
if err != nil { |
|
605 |
return b, err |
|
606 |
} |
|
607 |
} |
|
608 |
return b, nil |
|
609 |
} |
|
610 |
|
|
611 |
func consumeMessageSliceValue(b []byte, listv pref.Value, _ protowire.Number, wtyp protowire.Type, opts unmarshalOptions) (_ pref.Value, out unmarshalOutput, err error) { |
|
612 |
list := listv.List() |
|
613 |
if wtyp != protowire.BytesType { |
|
614 |
return pref.Value{}, out, errUnknown |
|
615 |
} |
|
616 |
v, n := protowire.ConsumeBytes(b) |
|
617 |
if n < 0 { |
|
618 |
return pref.Value{}, out, errDecode |
|
619 |
} |
|
620 |
m := list.NewElement() |
|
621 |
o, err := opts.Options().UnmarshalState(piface.UnmarshalInput{ |
|
622 |
Buf: v, |
|
623 |
Message: m.Message(), |
|
624 |
}) |
|
625 |
if err != nil { |
|
626 |
return pref.Value{}, out, err |
|
627 |
} |
|
628 |
list.Append(m) |
|
629 |
out.n = n |
|
630 |
out.initialized = o.Flags&piface.UnmarshalInitialized != 0 |
|
631 |
return listv, out, nil |
|
632 |
} |
|
633 |
|
|
634 |
func isInitMessageSliceValue(listv pref.Value) error { |
|
635 |
list := listv.List() |
|
636 |
for i, llen := 0, list.Len(); i < llen; i++ { |
|
637 |
m := list.Get(i).Message().Interface() |
|
638 |
if err := proto.CheckInitialized(m); err != nil { |
|
639 |
return err |
|
640 |
} |
|
641 |
} |
|
642 |
return nil |
|
643 |
} |
|
644 |
|
|
645 |
var coderMessageSliceValue = valueCoderFuncs{ |
|
646 |
size: sizeMessageSliceValue, |
|
647 |
marshal: appendMessageSliceValue, |
|
648 |
unmarshal: consumeMessageSliceValue, |
|
649 |
isInit: isInitMessageSliceValue, |
|
650 |
merge: mergeMessageListValue, |
|
651 |
} |
|
652 |
|
|
653 |
func sizeGroupSliceValue(listv pref.Value, tagsize int, opts marshalOptions) int { |
|
654 |
list := listv.List() |
|
655 |
n := 0 |
|
656 |
for i, llen := 0, list.Len(); i < llen; i++ { |
|
657 |
m := list.Get(i).Message().Interface() |
|
658 |
n += 2*tagsize + proto.Size(m) |
|
659 |
} |
|
660 |
return n |
|
661 |
} |
|
662 |
|
|
663 |
func appendGroupSliceValue(b []byte, listv pref.Value, wiretag uint64, opts marshalOptions) ([]byte, error) { |
|
664 |
list := listv.List() |
|
665 |
mopts := opts.Options() |
|
666 |
for i, llen := 0, list.Len(); i < llen; i++ { |
|
667 |
m := list.Get(i).Message().Interface() |
|
668 |
b = protowire.AppendVarint(b, wiretag) // start group |
|
669 |
var err error |
|
670 |
b, err = mopts.MarshalAppend(b, m) |
|
671 |
if err != nil { |
|
672 |
return b, err |
|
673 |
} |
|
674 |
b = protowire.AppendVarint(b, wiretag+1) // end group |
|
675 |
} |
|
676 |
return b, nil |
|
677 |
} |
|
678 |
|
|
679 |
func consumeGroupSliceValue(b []byte, listv pref.Value, num protowire.Number, wtyp protowire.Type, opts unmarshalOptions) (_ pref.Value, out unmarshalOutput, err error) { |
|
680 |
list := listv.List() |
|
681 |
if wtyp != protowire.StartGroupType { |
|
682 |
return pref.Value{}, out, errUnknown |
|
683 |
} |
|
684 |
b, n := protowire.ConsumeGroup(num, b) |
|
685 |
if n < 0 { |
|
686 |
return pref.Value{}, out, errDecode |
|
687 |
} |
|
688 |
m := list.NewElement() |
|
689 |
o, err := opts.Options().UnmarshalState(piface.UnmarshalInput{ |
|
690 |
Buf: b, |
|
691 |
Message: m.Message(), |
|
692 |
}) |
|
693 |
if err != nil { |
|
694 |
return pref.Value{}, out, err |
|
695 |
} |
|
696 |
list.Append(m) |
|
697 |
out.n = n |
|
698 |
out.initialized = o.Flags&piface.UnmarshalInitialized != 0 |
|
699 |
return listv, out, nil |
|
700 |
} |
|
701 |
|
|
702 |
var coderGroupSliceValue = valueCoderFuncs{ |
|
703 |
size: sizeGroupSliceValue, |
|
704 |
marshal: appendGroupSliceValue, |
|
705 |
unmarshal: consumeGroupSliceValue, |
|
706 |
isInit: isInitMessageSliceValue, |
|
707 |
merge: mergeMessageListValue, |
|
708 |
} |
|
709 |
|
|
710 |
func makeGroupSliceFieldCoder(fd pref.FieldDescriptor, ft reflect.Type) pointerCoderFuncs { |
|
711 |
num := fd.Number() |
|
712 |
if mi := getMessageInfo(ft); mi != nil { |
|
713 |
funcs := pointerCoderFuncs{ |
|
714 |
size: sizeGroupSliceInfo, |
|
715 |
marshal: appendGroupSliceInfo, |
|
716 |
unmarshal: consumeGroupSliceInfo, |
|
717 |
merge: mergeMessageSlice, |
|
718 |
} |
|
719 |
if needsInitCheck(mi.Desc) { |
|
720 |
funcs.isInit = isInitMessageSliceInfo |
|
721 |
} |
|
722 |
return funcs |
|
723 |
} |
|
724 |
return pointerCoderFuncs{ |
|
725 |
size: func(p pointer, f *coderFieldInfo, opts marshalOptions) int { |
|
726 |
return sizeGroupSlice(p, ft, f.tagsize, opts) |
|
727 |
}, |
|
728 |
marshal: func(b []byte, p pointer, f *coderFieldInfo, opts marshalOptions) ([]byte, error) { |
|
729 |
return appendGroupSlice(b, p, f.wiretag, ft, opts) |
|
730 |
}, |
|
731 |
unmarshal: func(b []byte, p pointer, wtyp protowire.Type, f *coderFieldInfo, opts unmarshalOptions) (unmarshalOutput, error) { |
|
732 |
return consumeGroupSlice(b, p, num, wtyp, ft, opts) |
|
733 |
}, |
|
734 |
isInit: func(p pointer, f *coderFieldInfo) error { |
|
735 |
return isInitMessageSlice(p, ft) |
|
736 |
}, |
|
737 |
merge: mergeMessageSlice, |
|
738 |
} |
|
739 |
} |
|
740 |
|
|
741 |
func sizeGroupSlice(p pointer, messageType reflect.Type, tagsize int, _ marshalOptions) int { |
|
742 |
s := p.PointerSlice() |
|
743 |
n := 0 |
|
744 |
for _, v := range s { |
|
745 |
m := asMessage(v.AsValueOf(messageType.Elem())) |
|
746 |
n += 2*tagsize + proto.Size(m) |
|
747 |
} |
|
748 |
return n |
|
749 |
} |
|
750 |
|
|
751 |
func appendGroupSlice(b []byte, p pointer, wiretag uint64, messageType reflect.Type, opts marshalOptions) ([]byte, error) { |
|
752 |
s := p.PointerSlice() |
|
753 |
var err error |
|
754 |
for _, v := range s { |
|
755 |
m := asMessage(v.AsValueOf(messageType.Elem())) |
|
756 |
b = protowire.AppendVarint(b, wiretag) // start group |
|
757 |
b, err = opts.Options().MarshalAppend(b, m) |
|
758 |
if err != nil { |
|
759 |
return b, err |
|
760 |
} |
|
761 |
b = protowire.AppendVarint(b, wiretag+1) // end group |
|
762 |
} |
|
763 |
return b, nil |
|
764 |
} |
|
765 |
|
|
766 |
func consumeGroupSlice(b []byte, p pointer, num protowire.Number, wtyp protowire.Type, goType reflect.Type, opts unmarshalOptions) (out unmarshalOutput, err error) { |
|
767 |
if wtyp != protowire.StartGroupType { |
|
768 |
return out, errUnknown |
|
769 |
} |
|
770 |
b, n := protowire.ConsumeGroup(num, b) |
|
771 |
if n < 0 { |
|
772 |
return out, errDecode |
|
773 |
} |
|
774 |
mp := reflect.New(goType.Elem()) |
|
775 |
o, err := opts.Options().UnmarshalState(piface.UnmarshalInput{ |
|
776 |
Buf: b, |
|
777 |
Message: asMessage(mp).ProtoReflect(), |
|
778 |
}) |
|
779 |
if err != nil { |
|
780 |
return out, err |
|
781 |
} |
|
782 |
p.AppendPointerSlice(pointerOfValue(mp)) |
|
783 |
out.n = n |
|
784 |
out.initialized = o.Flags&piface.UnmarshalInitialized != 0 |
|
785 |
return out, nil |
|
786 |
} |
|
787 |
|
|
788 |
func sizeGroupSliceInfo(p pointer, f *coderFieldInfo, opts marshalOptions) int { |
|
789 |
s := p.PointerSlice() |
|
790 |
n := 0 |
|
791 |
for _, v := range s { |
|
792 |
n += 2*f.tagsize + f.mi.sizePointer(v, opts) |
|
793 |
} |
|
794 |
return n |
|
795 |
} |
|
796 |
|
|
797 |
func appendGroupSliceInfo(b []byte, p pointer, f *coderFieldInfo, opts marshalOptions) ([]byte, error) { |
|
798 |
s := p.PointerSlice() |
|
799 |
var err error |
|
800 |
for _, v := range s { |
|
801 |
b = protowire.AppendVarint(b, f.wiretag) // start group |
|
802 |
b, err = f.mi.marshalAppendPointer(b, v, opts) |
|
803 |
if err != nil { |
|
804 |
return b, err |
|
805 |
} |
|
806 |
b = protowire.AppendVarint(b, f.wiretag+1) // end group |
|
807 |
} |
|
808 |
return b, nil |
|
809 |
} |
|
810 |
|
|
811 |
func consumeGroupSliceInfo(b []byte, p pointer, wtyp protowire.Type, f *coderFieldInfo, opts unmarshalOptions) (unmarshalOutput, error) { |
|
812 |
if wtyp != protowire.StartGroupType { |
|
813 |
return unmarshalOutput{}, errUnknown |
|
814 |
} |
|
815 |
m := reflect.New(f.mi.GoReflectType.Elem()).Interface() |
|
816 |
mp := pointerOfIface(m) |
|
817 |
out, err := f.mi.unmarshalPointer(b, mp, f.num, opts) |
|
818 |
if err != nil { |
|
819 |
return out, err |
|
820 |
} |
|
821 |
p.AppendPointerSlice(mp) |
|
822 |
return out, nil |
|
823 |
} |
|
824 |
|
|
825 |
func asMessage(v reflect.Value) pref.ProtoMessage { |
|
826 |
if m, ok := v.Interface().(pref.ProtoMessage); ok { |
|
827 |
return m |
|
828 |
} |
|
829 |
return legacyWrapMessage(v).Interface() |
|
830 |
} |