mirror of
https://github.com/42wim/matterbridge.git
synced 2024-12-21 10:32:35 +01:00
558 lines
15 KiB
Go
558 lines
15 KiB
Go
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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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"google.golang.org/protobuf/encoding/protowire"
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"google.golang.org/protobuf/internal/strs"
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pref "google.golang.org/protobuf/reflect/protoreflect"
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)
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// pointerCoderFuncs is a set of pointer encoding functions.
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type pointerCoderFuncs struct {
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mi *MessageInfo
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size func(p pointer, f *coderFieldInfo, opts marshalOptions) int
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marshal func(b []byte, p pointer, f *coderFieldInfo, opts marshalOptions) ([]byte, error)
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unmarshal func(b []byte, p pointer, wtyp protowire.Type, f *coderFieldInfo, opts unmarshalOptions) (unmarshalOutput, error)
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isInit func(p pointer, f *coderFieldInfo) error
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merge func(dst, src pointer, f *coderFieldInfo, opts mergeOptions)
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}
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// valueCoderFuncs is a set of protoreflect.Value encoding functions.
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type valueCoderFuncs struct {
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size func(v pref.Value, tagsize int, opts marshalOptions) int
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marshal func(b []byte, v pref.Value, wiretag uint64, opts marshalOptions) ([]byte, error)
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unmarshal func(b []byte, v pref.Value, num protowire.Number, wtyp protowire.Type, opts unmarshalOptions) (pref.Value, unmarshalOutput, error)
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isInit func(v pref.Value) error
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merge func(dst, src pref.Value, opts mergeOptions) pref.Value
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}
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// fieldCoder returns pointer functions for a field, used for operating on
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// struct fields.
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func fieldCoder(fd pref.FieldDescriptor, ft reflect.Type) (*MessageInfo, pointerCoderFuncs) {
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switch {
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case fd.IsMap():
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return encoderFuncsForMap(fd, ft)
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case fd.Cardinality() == pref.Repeated && !fd.IsPacked():
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// Repeated fields (not packed).
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if ft.Kind() != reflect.Slice {
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break
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}
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ft := ft.Elem()
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switch fd.Kind() {
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case pref.BoolKind:
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if ft.Kind() == reflect.Bool {
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return nil, coderBoolSlice
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}
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case pref.EnumKind:
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if ft.Kind() == reflect.Int32 {
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return nil, coderEnumSlice
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}
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case pref.Int32Kind:
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if ft.Kind() == reflect.Int32 {
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return nil, coderInt32Slice
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}
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case pref.Sint32Kind:
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if ft.Kind() == reflect.Int32 {
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return nil, coderSint32Slice
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}
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case pref.Uint32Kind:
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if ft.Kind() == reflect.Uint32 {
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return nil, coderUint32Slice
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}
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case pref.Int64Kind:
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if ft.Kind() == reflect.Int64 {
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return nil, coderInt64Slice
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}
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case pref.Sint64Kind:
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if ft.Kind() == reflect.Int64 {
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return nil, coderSint64Slice
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}
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case pref.Uint64Kind:
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if ft.Kind() == reflect.Uint64 {
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return nil, coderUint64Slice
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}
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case pref.Sfixed32Kind:
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if ft.Kind() == reflect.Int32 {
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return nil, coderSfixed32Slice
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}
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case pref.Fixed32Kind:
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if ft.Kind() == reflect.Uint32 {
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return nil, coderFixed32Slice
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}
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case pref.FloatKind:
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if ft.Kind() == reflect.Float32 {
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return nil, coderFloatSlice
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}
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case pref.Sfixed64Kind:
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if ft.Kind() == reflect.Int64 {
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return nil, coderSfixed64Slice
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}
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case pref.Fixed64Kind:
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if ft.Kind() == reflect.Uint64 {
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return nil, coderFixed64Slice
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}
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case pref.DoubleKind:
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if ft.Kind() == reflect.Float64 {
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return nil, coderDoubleSlice
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}
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case pref.StringKind:
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if ft.Kind() == reflect.String && strs.EnforceUTF8(fd) {
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return nil, coderStringSliceValidateUTF8
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}
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if ft.Kind() == reflect.String {
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return nil, coderStringSlice
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}
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if ft.Kind() == reflect.Slice && ft.Elem().Kind() == reflect.Uint8 && strs.EnforceUTF8(fd) {
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return nil, coderBytesSliceValidateUTF8
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}
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if ft.Kind() == reflect.Slice && ft.Elem().Kind() == reflect.Uint8 {
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return nil, coderBytesSlice
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}
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case pref.BytesKind:
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if ft.Kind() == reflect.String {
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return nil, coderStringSlice
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}
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if ft.Kind() == reflect.Slice && ft.Elem().Kind() == reflect.Uint8 {
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return nil, coderBytesSlice
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}
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case pref.MessageKind:
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return getMessageInfo(ft), makeMessageSliceFieldCoder(fd, ft)
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case pref.GroupKind:
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return getMessageInfo(ft), makeGroupSliceFieldCoder(fd, ft)
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}
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case fd.Cardinality() == pref.Repeated && fd.IsPacked():
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// Packed repeated fields.
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//
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// Only repeated fields of primitive numeric types
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// (Varint, Fixed32, or Fixed64 wire type) can be packed.
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if ft.Kind() != reflect.Slice {
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break
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}
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ft := ft.Elem()
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switch fd.Kind() {
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case pref.BoolKind:
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if ft.Kind() == reflect.Bool {
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return nil, coderBoolPackedSlice
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}
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case pref.EnumKind:
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if ft.Kind() == reflect.Int32 {
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return nil, coderEnumPackedSlice
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}
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case pref.Int32Kind:
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if ft.Kind() == reflect.Int32 {
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return nil, coderInt32PackedSlice
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}
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case pref.Sint32Kind:
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if ft.Kind() == reflect.Int32 {
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return nil, coderSint32PackedSlice
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}
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case pref.Uint32Kind:
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if ft.Kind() == reflect.Uint32 {
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return nil, coderUint32PackedSlice
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}
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case pref.Int64Kind:
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if ft.Kind() == reflect.Int64 {
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return nil, coderInt64PackedSlice
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}
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case pref.Sint64Kind:
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if ft.Kind() == reflect.Int64 {
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return nil, coderSint64PackedSlice
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}
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case pref.Uint64Kind:
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if ft.Kind() == reflect.Uint64 {
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return nil, coderUint64PackedSlice
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}
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case pref.Sfixed32Kind:
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if ft.Kind() == reflect.Int32 {
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return nil, coderSfixed32PackedSlice
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}
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case pref.Fixed32Kind:
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if ft.Kind() == reflect.Uint32 {
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return nil, coderFixed32PackedSlice
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}
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case pref.FloatKind:
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if ft.Kind() == reflect.Float32 {
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return nil, coderFloatPackedSlice
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}
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case pref.Sfixed64Kind:
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if ft.Kind() == reflect.Int64 {
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return nil, coderSfixed64PackedSlice
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}
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case pref.Fixed64Kind:
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if ft.Kind() == reflect.Uint64 {
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return nil, coderFixed64PackedSlice
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}
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case pref.DoubleKind:
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if ft.Kind() == reflect.Float64 {
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return nil, coderDoublePackedSlice
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}
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}
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case fd.Kind() == pref.MessageKind:
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return getMessageInfo(ft), makeMessageFieldCoder(fd, ft)
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case fd.Kind() == pref.GroupKind:
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return getMessageInfo(ft), makeGroupFieldCoder(fd, ft)
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case fd.Syntax() == pref.Proto3 && fd.ContainingOneof() == nil:
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// Populated oneof fields always encode even if set to the zero value,
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// which normally are not encoded in proto3.
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switch fd.Kind() {
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case pref.BoolKind:
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if ft.Kind() == reflect.Bool {
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return nil, coderBoolNoZero
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}
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case pref.EnumKind:
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if ft.Kind() == reflect.Int32 {
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return nil, coderEnumNoZero
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}
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case pref.Int32Kind:
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if ft.Kind() == reflect.Int32 {
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return nil, coderInt32NoZero
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}
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case pref.Sint32Kind:
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if ft.Kind() == reflect.Int32 {
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return nil, coderSint32NoZero
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}
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case pref.Uint32Kind:
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if ft.Kind() == reflect.Uint32 {
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return nil, coderUint32NoZero
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}
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case pref.Int64Kind:
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if ft.Kind() == reflect.Int64 {
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return nil, coderInt64NoZero
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}
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case pref.Sint64Kind:
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if ft.Kind() == reflect.Int64 {
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return nil, coderSint64NoZero
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}
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case pref.Uint64Kind:
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if ft.Kind() == reflect.Uint64 {
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return nil, coderUint64NoZero
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}
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case pref.Sfixed32Kind:
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if ft.Kind() == reflect.Int32 {
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return nil, coderSfixed32NoZero
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}
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case pref.Fixed32Kind:
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if ft.Kind() == reflect.Uint32 {
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return nil, coderFixed32NoZero
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}
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case pref.FloatKind:
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if ft.Kind() == reflect.Float32 {
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return nil, coderFloatNoZero
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}
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case pref.Sfixed64Kind:
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if ft.Kind() == reflect.Int64 {
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return nil, coderSfixed64NoZero
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|
}
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case pref.Fixed64Kind:
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if ft.Kind() == reflect.Uint64 {
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return nil, coderFixed64NoZero
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}
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case pref.DoubleKind:
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if ft.Kind() == reflect.Float64 {
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return nil, coderDoubleNoZero
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}
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|
case pref.StringKind:
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if ft.Kind() == reflect.String && strs.EnforceUTF8(fd) {
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return nil, coderStringNoZeroValidateUTF8
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|
}
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if ft.Kind() == reflect.String {
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return nil, coderStringNoZero
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|
}
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if ft.Kind() == reflect.Slice && ft.Elem().Kind() == reflect.Uint8 && strs.EnforceUTF8(fd) {
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return nil, coderBytesNoZeroValidateUTF8
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}
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if ft.Kind() == reflect.Slice && ft.Elem().Kind() == reflect.Uint8 {
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return nil, coderBytesNoZero
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}
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case pref.BytesKind:
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if ft.Kind() == reflect.String {
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return nil, coderStringNoZero
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|
}
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if ft.Kind() == reflect.Slice && ft.Elem().Kind() == reflect.Uint8 {
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return nil, coderBytesNoZero
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}
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}
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case ft.Kind() == reflect.Ptr:
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ft := ft.Elem()
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switch fd.Kind() {
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case pref.BoolKind:
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if ft.Kind() == reflect.Bool {
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return nil, coderBoolPtr
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|
}
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|
case pref.EnumKind:
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|
if ft.Kind() == reflect.Int32 {
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|
return nil, coderEnumPtr
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|
}
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|
case pref.Int32Kind:
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|
if ft.Kind() == reflect.Int32 {
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|
return nil, coderInt32Ptr
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|
}
|
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|
case pref.Sint32Kind:
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|
if ft.Kind() == reflect.Int32 {
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|
return nil, coderSint32Ptr
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|
}
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|
case pref.Uint32Kind:
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|
if ft.Kind() == reflect.Uint32 {
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|
return nil, coderUint32Ptr
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|
}
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|
case pref.Int64Kind:
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|
if ft.Kind() == reflect.Int64 {
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|
return nil, coderInt64Ptr
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|
}
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|
case pref.Sint64Kind:
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|
if ft.Kind() == reflect.Int64 {
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|
return nil, coderSint64Ptr
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|
}
|
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|
case pref.Uint64Kind:
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|
if ft.Kind() == reflect.Uint64 {
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|
return nil, coderUint64Ptr
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|
}
|
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|
case pref.Sfixed32Kind:
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|
if ft.Kind() == reflect.Int32 {
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|
return nil, coderSfixed32Ptr
|
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|
}
|
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|
case pref.Fixed32Kind:
|
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|
if ft.Kind() == reflect.Uint32 {
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|
return nil, coderFixed32Ptr
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|
}
|
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|
case pref.FloatKind:
|
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|
if ft.Kind() == reflect.Float32 {
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|
return nil, coderFloatPtr
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|
}
|
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|
case pref.Sfixed64Kind:
|
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|
if ft.Kind() == reflect.Int64 {
|
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|
return nil, coderSfixed64Ptr
|
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|
}
|
||
|
case pref.Fixed64Kind:
|
||
|
if ft.Kind() == reflect.Uint64 {
|
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|
return nil, coderFixed64Ptr
|
||
|
}
|
||
|
case pref.DoubleKind:
|
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|
if ft.Kind() == reflect.Float64 {
|
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|
return nil, coderDoublePtr
|
||
|
}
|
||
|
case pref.StringKind:
|
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|
if ft.Kind() == reflect.String && strs.EnforceUTF8(fd) {
|
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|
return nil, coderStringPtrValidateUTF8
|
||
|
}
|
||
|
if ft.Kind() == reflect.String {
|
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|
return nil, coderStringPtr
|
||
|
}
|
||
|
case pref.BytesKind:
|
||
|
if ft.Kind() == reflect.String {
|
||
|
return nil, coderStringPtr
|
||
|
}
|
||
|
}
|
||
|
default:
|
||
|
switch fd.Kind() {
|
||
|
case pref.BoolKind:
|
||
|
if ft.Kind() == reflect.Bool {
|
||
|
return nil, coderBool
|
||
|
}
|
||
|
case pref.EnumKind:
|
||
|
if ft.Kind() == reflect.Int32 {
|
||
|
return nil, coderEnum
|
||
|
}
|
||
|
case pref.Int32Kind:
|
||
|
if ft.Kind() == reflect.Int32 {
|
||
|
return nil, coderInt32
|
||
|
}
|
||
|
case pref.Sint32Kind:
|
||
|
if ft.Kind() == reflect.Int32 {
|
||
|
return nil, coderSint32
|
||
|
}
|
||
|
case pref.Uint32Kind:
|
||
|
if ft.Kind() == reflect.Uint32 {
|
||
|
return nil, coderUint32
|
||
|
}
|
||
|
case pref.Int64Kind:
|
||
|
if ft.Kind() == reflect.Int64 {
|
||
|
return nil, coderInt64
|
||
|
}
|
||
|
case pref.Sint64Kind:
|
||
|
if ft.Kind() == reflect.Int64 {
|
||
|
return nil, coderSint64
|
||
|
}
|
||
|
case pref.Uint64Kind:
|
||
|
if ft.Kind() == reflect.Uint64 {
|
||
|
return nil, coderUint64
|
||
|
}
|
||
|
case pref.Sfixed32Kind:
|
||
|
if ft.Kind() == reflect.Int32 {
|
||
|
return nil, coderSfixed32
|
||
|
}
|
||
|
case pref.Fixed32Kind:
|
||
|
if ft.Kind() == reflect.Uint32 {
|
||
|
return nil, coderFixed32
|
||
|
}
|
||
|
case pref.FloatKind:
|
||
|
if ft.Kind() == reflect.Float32 {
|
||
|
return nil, coderFloat
|
||
|
}
|
||
|
case pref.Sfixed64Kind:
|
||
|
if ft.Kind() == reflect.Int64 {
|
||
|
return nil, coderSfixed64
|
||
|
}
|
||
|
case pref.Fixed64Kind:
|
||
|
if ft.Kind() == reflect.Uint64 {
|
||
|
return nil, coderFixed64
|
||
|
}
|
||
|
case pref.DoubleKind:
|
||
|
if ft.Kind() == reflect.Float64 {
|
||
|
return nil, coderDouble
|
||
|
}
|
||
|
case pref.StringKind:
|
||
|
if ft.Kind() == reflect.String && strs.EnforceUTF8(fd) {
|
||
|
return nil, coderStringValidateUTF8
|
||
|
}
|
||
|
if ft.Kind() == reflect.String {
|
||
|
return nil, coderString
|
||
|
}
|
||
|
if ft.Kind() == reflect.Slice && ft.Elem().Kind() == reflect.Uint8 && strs.EnforceUTF8(fd) {
|
||
|
return nil, coderBytesValidateUTF8
|
||
|
}
|
||
|
if ft.Kind() == reflect.Slice && ft.Elem().Kind() == reflect.Uint8 {
|
||
|
return nil, coderBytes
|
||
|
}
|
||
|
case pref.BytesKind:
|
||
|
if ft.Kind() == reflect.String {
|
||
|
return nil, coderString
|
||
|
}
|
||
|
if ft.Kind() == reflect.Slice && ft.Elem().Kind() == reflect.Uint8 {
|
||
|
return nil, coderBytes
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
panic(fmt.Sprintf("invalid type: no encoder for %v %v %v/%v", fd.FullName(), fd.Cardinality(), fd.Kind(), ft))
|
||
|
}
|
||
|
|
||
|
// encoderFuncsForValue returns value functions for a field, used for
|
||
|
// extension values and map encoding.
|
||
|
func encoderFuncsForValue(fd pref.FieldDescriptor) valueCoderFuncs {
|
||
|
switch {
|
||
|
case fd.Cardinality() == pref.Repeated && !fd.IsPacked():
|
||
|
switch fd.Kind() {
|
||
|
case pref.BoolKind:
|
||
|
return coderBoolSliceValue
|
||
|
case pref.EnumKind:
|
||
|
return coderEnumSliceValue
|
||
|
case pref.Int32Kind:
|
||
|
return coderInt32SliceValue
|
||
|
case pref.Sint32Kind:
|
||
|
return coderSint32SliceValue
|
||
|
case pref.Uint32Kind:
|
||
|
return coderUint32SliceValue
|
||
|
case pref.Int64Kind:
|
||
|
return coderInt64SliceValue
|
||
|
case pref.Sint64Kind:
|
||
|
return coderSint64SliceValue
|
||
|
case pref.Uint64Kind:
|
||
|
return coderUint64SliceValue
|
||
|
case pref.Sfixed32Kind:
|
||
|
return coderSfixed32SliceValue
|
||
|
case pref.Fixed32Kind:
|
||
|
return coderFixed32SliceValue
|
||
|
case pref.FloatKind:
|
||
|
return coderFloatSliceValue
|
||
|
case pref.Sfixed64Kind:
|
||
|
return coderSfixed64SliceValue
|
||
|
case pref.Fixed64Kind:
|
||
|
return coderFixed64SliceValue
|
||
|
case pref.DoubleKind:
|
||
|
return coderDoubleSliceValue
|
||
|
case pref.StringKind:
|
||
|
// We don't have a UTF-8 validating coder for repeated string fields.
|
||
|
// Value coders are used for extensions and maps.
|
||
|
// Extensions are never proto3, and maps never contain lists.
|
||
|
return coderStringSliceValue
|
||
|
case pref.BytesKind:
|
||
|
return coderBytesSliceValue
|
||
|
case pref.MessageKind:
|
||
|
return coderMessageSliceValue
|
||
|
case pref.GroupKind:
|
||
|
return coderGroupSliceValue
|
||
|
}
|
||
|
case fd.Cardinality() == pref.Repeated && fd.IsPacked():
|
||
|
switch fd.Kind() {
|
||
|
case pref.BoolKind:
|
||
|
return coderBoolPackedSliceValue
|
||
|
case pref.EnumKind:
|
||
|
return coderEnumPackedSliceValue
|
||
|
case pref.Int32Kind:
|
||
|
return coderInt32PackedSliceValue
|
||
|
case pref.Sint32Kind:
|
||
|
return coderSint32PackedSliceValue
|
||
|
case pref.Uint32Kind:
|
||
|
return coderUint32PackedSliceValue
|
||
|
case pref.Int64Kind:
|
||
|
return coderInt64PackedSliceValue
|
||
|
case pref.Sint64Kind:
|
||
|
return coderSint64PackedSliceValue
|
||
|
case pref.Uint64Kind:
|
||
|
return coderUint64PackedSliceValue
|
||
|
case pref.Sfixed32Kind:
|
||
|
return coderSfixed32PackedSliceValue
|
||
|
case pref.Fixed32Kind:
|
||
|
return coderFixed32PackedSliceValue
|
||
|
case pref.FloatKind:
|
||
|
return coderFloatPackedSliceValue
|
||
|
case pref.Sfixed64Kind:
|
||
|
return coderSfixed64PackedSliceValue
|
||
|
case pref.Fixed64Kind:
|
||
|
return coderFixed64PackedSliceValue
|
||
|
case pref.DoubleKind:
|
||
|
return coderDoublePackedSliceValue
|
||
|
}
|
||
|
default:
|
||
|
switch fd.Kind() {
|
||
|
default:
|
||
|
case pref.BoolKind:
|
||
|
return coderBoolValue
|
||
|
case pref.EnumKind:
|
||
|
return coderEnumValue
|
||
|
case pref.Int32Kind:
|
||
|
return coderInt32Value
|
||
|
case pref.Sint32Kind:
|
||
|
return coderSint32Value
|
||
|
case pref.Uint32Kind:
|
||
|
return coderUint32Value
|
||
|
case pref.Int64Kind:
|
||
|
return coderInt64Value
|
||
|
case pref.Sint64Kind:
|
||
|
return coderSint64Value
|
||
|
case pref.Uint64Kind:
|
||
|
return coderUint64Value
|
||
|
case pref.Sfixed32Kind:
|
||
|
return coderSfixed32Value
|
||
|
case pref.Fixed32Kind:
|
||
|
return coderFixed32Value
|
||
|
case pref.FloatKind:
|
||
|
return coderFloatValue
|
||
|
case pref.Sfixed64Kind:
|
||
|
return coderSfixed64Value
|
||
|
case pref.Fixed64Kind:
|
||
|
return coderFixed64Value
|
||
|
case pref.DoubleKind:
|
||
|
return coderDoubleValue
|
||
|
case pref.StringKind:
|
||
|
if strs.EnforceUTF8(fd) {
|
||
|
return coderStringValueValidateUTF8
|
||
|
}
|
||
|
return coderStringValue
|
||
|
case pref.BytesKind:
|
||
|
return coderBytesValue
|
||
|
case pref.MessageKind:
|
||
|
return coderMessageValue
|
||
|
case pref.GroupKind:
|
||
|
return coderGroupValue
|
||
|
}
|
||
|
}
|
||
|
panic(fmt.Sprintf("invalid field: no encoder for %v %v %v", fd.FullName(), fd.Cardinality(), fd.Kind()))
|
||
|
}
|