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cmd/protoc-gen-go: support protobuf retention feature

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This change strips out all descriptor option fields marked with [retention = RETENTION_SOURCE] before writing the FileDescriptor to the generated go code bindings.

Change-Id: Ie624d9d4b4f211a256661d80a04199ae8401662b
Reviewed-on: https://go-review.googlesource.com/c/protobuf/+/472696
Reviewed-by: Damien Neil <dneil@google.com>
Reviewed-by: Lasse Folger <lassefolger@google.com>
This commit is contained in:
googleberg 2023-03-01 21:35:32 -07:00 committed by Michael Stapelberg
parent fcf5f6cb72
commit eba8b0975f
8 changed files with 1478 additions and 1 deletions
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23
cmd/protoc-gen-go/internal_gengo/reflect.go
View File

@ -12,6 +12,8 @@ import (
"google.golang.org/protobuf/compiler/protogen"
"google.golang.org/protobuf/proto"
"google.golang.org/protobuf/reflect/protopath"
"google.golang.org/protobuf/reflect/protorange"
"google.golang.org/protobuf/reflect/protoreflect"
"google.golang.org/protobuf/types/descriptorpb"
@ -233,10 +235,29 @@ func genReflectFileDescriptor(gen *protogen.Plugin, g *protogen.GeneratedFile, f
g.P("}")
}
// stripSourceRetentionFieldsFromMessage walks the given message tree recursively
// and clears any fields with the field option: [retention = RETENTION_SOURCE]
func stripSourceRetentionFieldsFromMessage(m protoreflect.Message) {
protorange.Range(m, func(ppv protopath.Values) error {
m2, ok := ppv.Index(-1).Value.Interface().(protoreflect.Message)
if !ok {
return nil
}
m2.Range(func(fd protoreflect.FieldDescriptor, v protoreflect.Value) bool {
fdo, ok := fd.Options().(*descriptorpb.FieldOptions)
if ok && fdo.GetRetention() == descriptorpb.FieldOptions_RETENTION_SOURCE {
m2.Clear(fd)
}
return true
})
return nil
})
}
func genFileDescriptor(gen *protogen.Plugin, g *protogen.GeneratedFile, f *fileInfo) {
descProto := proto.Clone(f.Proto).(*descriptorpb.FileDescriptorProto)
descProto.SourceCodeInfo = nil // drop source code information
stripSourceRetentionFieldsFromMessage(descProto.ProtoReflect())
b, err := proto.MarshalOptions{AllowPartial: true, Deterministic: true}.Marshal(descProto)
if err != nil {
gen.Error(err)

178
cmd/protoc-gen-go/retention_test.go Normal file
View File

@ -0,0 +1,178 @@
// 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 main
import (
"testing"
"google.golang.org/protobuf/proto"
"google.golang.org/protobuf/reflect/protoreflect"
retentionpb "google.golang.org/protobuf/cmd/protoc-gen-go/testdata/retention"
)
func TestFileOptionRetention(t *testing.T) {
options := retentionpb.File_cmd_protoc_gen_go_testdata_retention_retention_proto.Options()
tests := []struct {
name string
ext protoreflect.ExtensionType
wantField bool
wantValue int32
}{
{
name: "imported_plain_option",
ext: retentionpb.E_ImportedPlainOption,
wantField: true,
wantValue: 1,
},
{
name: "imported_runtime_option",
ext: retentionpb.E_ImportedRuntimeRetentionOption,
wantField: true,
wantValue: 2,
},
{
name: "imported_source_option",
ext: retentionpb.E_ImportedSourceRetentionOption,
wantField: false,
wantValue: 0,
},
{
name: "plain_option",
ext: retentionpb.E_PlainOption,
wantField: true,
wantValue: 1,
},
{
name: "runtime_option",
ext: retentionpb.E_RuntimeRetentionOption,
wantField: true,
wantValue: 2,
},
{
name: "source_option",
ext: retentionpb.E_SourceRetentionOption,
wantField: false,
wantValue: 0,
},
}
for _, test := range tests {
if test.wantField != proto.HasExtension(options, test.ext) {
t.Errorf("HasExtension(%s): got %v, want %v", test.name, proto.HasExtension(options, test.ext), test.wantField)
}
if test.wantValue != proto.GetExtension(options, test.ext).(int32) {
t.Errorf("GetExtension(%s): got %d, want %d", test.name, proto.GetExtension(options, test.ext).(int32), test.wantValue)
}
}
}
func TestAllEntitiesWithMessageOption(t *testing.T) {
file := retentionpb.File_cmd_protoc_gen_go_testdata_retention_retention_proto
verifyDescriptorOptions(t, string(file.Name()), file.Options())
verifyEnums(t, file.Enums())
verifyMessages(t, file.Messages())
verifyExtensions(t, file.Extensions())
verifyServices(t, file.Services())
}
func verifyExtensions(t *testing.T, extensions protoreflect.ExtensionDescriptors) {
t.Helper()
for i := 0; i < extensions.Len(); i++ {
verifyDescriptorOptions(t, string(extensions.Get(i).Name()), extensions.Get(i).Options())
}
}
func verifyMessages(t *testing.T, messages protoreflect.MessageDescriptors) {
t.Helper()
for i := 0; i < messages.Len(); i++ {
verifyDescriptorOptions(t, string(messages.Get(i).Name()), messages.Get(i).Options())
verifyEnums(t, messages.Get(i).Enums())
verifyMessages(t, messages.Get(i).Messages())
verifyExtensions(t, messages.Get(i).Extensions())
verifyFields(t, messages.Get(i).Fields())
}
}
func verifyFields(t *testing.T, fields protoreflect.FieldDescriptors) {
t.Helper()
for i := 0; i < fields.Len(); i++ {
verifyDescriptorOptions(t, string(fields.Get(i).Name()), fields.Get(i).Options())
}
}
func verifyEnums(t *testing.T, enums protoreflect.EnumDescriptors) {
t.Helper()
for i := 0; i < enums.Len(); i++ {
verifyDescriptorOptions(t, string(enums.Get(i).Name()), enums.Get(i).Options())
verifyEnumValues(t, enums.Get(i).Values())
}
}
func verifyEnumValues(t *testing.T, values protoreflect.EnumValueDescriptors) {
t.Helper()
for i := 0; i < values.Len(); i++ {
verifyDescriptorOptions(t, string(values.Get(i).Name()), values.Get(i).Options())
}
}
func verifyServices(t *testing.T, services protoreflect.ServiceDescriptors) {
t.Helper()
for i := 0; i < services.Len(); i++ {
verifyDescriptorOptions(t, string(services.Get(i).Name()), services.Get(i).Options())
verifyMethods(t, services.Get(i).Methods())
}
}
func verifyMethods(t *testing.T, methods protoreflect.MethodDescriptors) {
t.Helper()
for i := 0; i < methods.Len(); i++ {
verifyDescriptorOptions(t, string(methods.Get(i).Name()), methods.Get(i).Options())
}
}
func verifyDescriptorOptions(t *testing.T, entity string, options protoreflect.ProtoMessage) {
t.Helper()
options.ProtoReflect().Range(func(fd protoreflect.FieldDescriptor, v protoreflect.Value) bool {
maybeVerifyOption(t, fd, v)
return true
})
}
func maybeVerifyOption(t *testing.T, fd protoreflect.FieldDescriptor, v protoreflect.Value) {
t.Helper()
if fd.Kind() == protoreflect.MessageKind && string(fd.Message().FullName()) == "goproto.proto.testretention.OptionsMessage" {
if fd.IsList() {
for i := 0; i < v.List().Len(); i++ {
verifyOptionsMessage(t, string(fd.FullName()), v.List().Get(i).Message().Interface().(*retentionpb.OptionsMessage))
}
} else {
verifyOptionsMessage(t, string(fd.FullName()), v.Message().Interface().(*retentionpb.OptionsMessage))
}
}
}
func verifyOptionsMessage(t *testing.T, entity string, msg *retentionpb.OptionsMessage) {
t.Helper()
if msg.PlainField == nil {
t.Errorf("%s.OptionsMessage.HasField(plain_field): got false, want true", entity)
}
if msg.GetPlainField() != 1 {
t.Errorf("%s.OptionsMessage.GetField(plain_field): got %d, want 1", entity, msg.GetPlainField())
}
if msg.RuntimeRetentionField == nil {
t.Errorf("%s.OptionsMessage.HasField(runtime_retention_field): got false, want true", entity)
}
if msg.GetRuntimeRetentionField() != 2 {
t.Errorf("%s.OptionsMessage.GetField(runtime_retention_field): got %d, want 2", entity, msg.GetRuntimeRetentionField())
}
if msg.SourceRetentionField != nil {
t.Errorf("%s.OptionsMessage.HasField(source_retention_field): got true, want false", entity)
}
if msg.GetSourceRetentionField() != 0 {
// Checking that we get 0 even though this was set to 3 in the source file
t.Errorf("%s.OptionsMessage.GetField(source_retention_field): got %d, want 0", entity, msg.GetSourceRetentionField())
}
}

1
cmd/protoc-gen-go/testdata/gen_test.go vendored
View File

@ -26,4 +26,5 @@ import (
_ "google.golang.org/protobuf/cmd/protoc-gen-go/testdata/nopackage"
_ "google.golang.org/protobuf/cmd/protoc-gen-go/testdata/proto2"
_ "google.golang.org/protobuf/cmd/protoc-gen-go/testdata/proto3"
_ "google.golang.org/protobuf/cmd/protoc-gen-go/testdata/retention"
)

250
cmd/protoc-gen-go/testdata/retention/options_message.pb.go vendored Executable file
View File

@ -0,0 +1,250 @@
// Copyright 2020 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.
// Code generated by protoc-gen-go. DO NOT EDIT.
// source: cmd/protoc-gen-go/testdata/retention/options_message.proto
package retention
import (
protoreflect "google.golang.org/protobuf/reflect/protoreflect"
protoimpl "google.golang.org/protobuf/runtime/protoimpl"
descriptorpb "google.golang.org/protobuf/types/descriptorpb"
reflect "reflect"
sync "sync"
)
// Retention attributes set on fields nested within a message
type OptionsMessage struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
PlainField *int32 `protobuf:"varint,1,opt,name=plain_field,json=plainField" json:"plain_field,omitempty"`
RuntimeRetentionField *int32 `protobuf:"varint,2,opt,name=runtime_retention_field,json=runtimeRetentionField" json:"runtime_retention_field,omitempty"`
SourceRetentionField *int32 `protobuf:"varint,3,opt,name=source_retention_field,json=sourceRetentionField" json:"source_retention_field,omitempty"`
}
func (x *OptionsMessage) Reset() {
*x = OptionsMessage{}
if protoimpl.UnsafeEnabled {
mi := &file_cmd_protoc_gen_go_testdata_retention_options_message_proto_msgTypes[0]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
}
func (x *OptionsMessage) String() string {
return protoimpl.X.MessageStringOf(x)
}
func (*OptionsMessage) ProtoMessage() {}
func (x *OptionsMessage) ProtoReflect() protoreflect.Message {
mi := &file_cmd_protoc_gen_go_testdata_retention_options_message_proto_msgTypes[0]
if protoimpl.UnsafeEnabled && x != nil {
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
if ms.LoadMessageInfo() == nil {
ms.StoreMessageInfo(mi)
}
return ms
}
return mi.MessageOf(x)
}
// Deprecated: Use OptionsMessage.ProtoReflect.Descriptor instead.
func (*OptionsMessage) Descriptor() ([]byte, []int) {
return file_cmd_protoc_gen_go_testdata_retention_options_message_proto_rawDescGZIP(), []int{0}
}
func (x *OptionsMessage) GetPlainField() int32 {
if x != nil && x.PlainField != nil {
return *x.PlainField
}
return 0
}
func (x *OptionsMessage) GetRuntimeRetentionField() int32 {
if x != nil && x.RuntimeRetentionField != nil {
return *x.RuntimeRetentionField
}
return 0
}
func (x *OptionsMessage) GetSourceRetentionField() int32 {
if x != nil && x.SourceRetentionField != nil {
return *x.SourceRetentionField
}
return 0
}
var file_cmd_protoc_gen_go_testdata_retention_options_message_proto_extTypes = []protoimpl.ExtensionInfo{
{
ExtendedType: (*descriptorpb.FileOptions)(nil),
ExtensionType: (*int32)(nil),
Field: 511807920,
Name: "testretention.imported_plain_option",
Tag: "varint,511807920,opt,name=imported_plain_option",
Filename: "cmd/protoc-gen-go/testdata/retention/options_message.proto",
},
{
ExtendedType: (*descriptorpb.FileOptions)(nil),
ExtensionType: (*int32)(nil),
Field: 512484074,
Name: "testretention.imported_runtime_retention_option",
Tag: "varint,512484074,opt,name=imported_runtime_retention_option",
Filename: "cmd/protoc-gen-go/testdata/retention/options_message.proto",
},
{
ExtendedType: (*descriptorpb.FileOptions)(nil),
ExtensionType: (*int32)(nil),
Field: 512645287,
Name: "testretention.imported_source_retention_option",
Tag: "varint,512645287,opt,name=imported_source_retention_option",
Filename: "cmd/protoc-gen-go/testdata/retention/options_message.proto",
},
{
ExtendedType: (*descriptorpb.FileOptions)(nil),
ExtensionType: (*OptionsMessage)(nil),
Field: 504871168,
Name: "testretention.file_option",
Tag: "bytes,504871168,opt,name=file_option",
Filename: "cmd/protoc-gen-go/testdata/retention/options_message.proto",
},
}
// Extension fields to descriptorpb.FileOptions.
var (
// optional int32 imported_plain_option = 511807920;
E_ImportedPlainOption = &file_cmd_protoc_gen_go_testdata_retention_options_message_proto_extTypes[0]
// optional int32 imported_runtime_retention_option = 512484074;
E_ImportedRuntimeRetentionOption = &file_cmd_protoc_gen_go_testdata_retention_options_message_proto_extTypes[1]
// optional int32 imported_source_retention_option = 512645287;
E_ImportedSourceRetentionOption = &file_cmd_protoc_gen_go_testdata_retention_options_message_proto_extTypes[2]
// optional testretention.OptionsMessage file_option = 504871168;
E_FileOption = &file_cmd_protoc_gen_go_testdata_retention_options_message_proto_extTypes[3]
)
var File_cmd_protoc_gen_go_testdata_retention_options_message_proto protoreflect.FileDescriptor
var file_cmd_protoc_gen_go_testdata_retention_options_message_proto_rawDesc = []byte{
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}
var (
file_cmd_protoc_gen_go_testdata_retention_options_message_proto_rawDescOnce sync.Once
file_cmd_protoc_gen_go_testdata_retention_options_message_proto_rawDescData = file_cmd_protoc_gen_go_testdata_retention_options_message_proto_rawDesc
)
func file_cmd_protoc_gen_go_testdata_retention_options_message_proto_rawDescGZIP() []byte {
file_cmd_protoc_gen_go_testdata_retention_options_message_proto_rawDescOnce.Do(func() {
file_cmd_protoc_gen_go_testdata_retention_options_message_proto_rawDescData = protoimpl.X.CompressGZIP(file_cmd_protoc_gen_go_testdata_retention_options_message_proto_rawDescData)
})
return file_cmd_protoc_gen_go_testdata_retention_options_message_proto_rawDescData
}
var file_cmd_protoc_gen_go_testdata_retention_options_message_proto_msgTypes = make([]protoimpl.MessageInfo, 1)
var file_cmd_protoc_gen_go_testdata_retention_options_message_proto_goTypes = []interface{}{
(*OptionsMessage)(nil), // 0: testretention.OptionsMessage
(*descriptorpb.FileOptions)(nil), // 1: google.protobuf.FileOptions
}
var file_cmd_protoc_gen_go_testdata_retention_options_message_proto_depIdxs = []int32{
1, // 0: testretention.imported_plain_option:extendee -> google.protobuf.FileOptions
1, // 1: testretention.imported_runtime_retention_option:extendee -> google.protobuf.FileOptions
1, // 2: testretention.imported_source_retention_option:extendee -> google.protobuf.FileOptions
1, // 3: testretention.file_option:extendee -> google.protobuf.FileOptions
0, // 4: testretention.file_option:type_name -> testretention.OptionsMessage
5, // [5:5] is the sub-list for method output_type
5, // [5:5] is the sub-list for method input_type
4, // [4:5] is the sub-list for extension type_name
0, // [0:4] is the sub-list for extension extendee
0, // [0:0] is the sub-list for field type_name
}
func init() { file_cmd_protoc_gen_go_testdata_retention_options_message_proto_init() }
func file_cmd_protoc_gen_go_testdata_retention_options_message_proto_init() {
if File_cmd_protoc_gen_go_testdata_retention_options_message_proto != nil {
return
}
if !protoimpl.UnsafeEnabled {
file_cmd_protoc_gen_go_testdata_retention_options_message_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
switch v := v.(*OptionsMessage); i {
case 0:
return &v.state
case 1:
return &v.sizeCache
case 2:
return &v.unknownFields
default:
return nil
}
}
}
type x struct{}
out := protoimpl.TypeBuilder{
File: protoimpl.DescBuilder{
GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
RawDescriptor: file_cmd_protoc_gen_go_testdata_retention_options_message_proto_rawDesc,
NumEnums: 0,
NumMessages: 1,
NumExtensions: 4,
NumServices: 0,
},
GoTypes: file_cmd_protoc_gen_go_testdata_retention_options_message_proto_goTypes,
DependencyIndexes: file_cmd_protoc_gen_go_testdata_retention_options_message_proto_depIdxs,
MessageInfos: file_cmd_protoc_gen_go_testdata_retention_options_message_proto_msgTypes,
ExtensionInfos: file_cmd_protoc_gen_go_testdata_retention_options_message_proto_extTypes,
}.Build()
File_cmd_protoc_gen_go_testdata_retention_options_message_proto = out.File
file_cmd_protoc_gen_go_testdata_retention_options_message_proto_rawDesc = nil
file_cmd_protoc_gen_go_testdata_retention_options_message_proto_goTypes = nil
file_cmd_protoc_gen_go_testdata_retention_options_message_proto_depIdxs = nil
}

30
cmd/protoc-gen-go/testdata/retention/options_message.proto vendored Normal file
View File

@ -0,0 +1,30 @@
// Copyright 2020 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.
syntax = "proto2";
package testretention;
import "google/protobuf/descriptor.proto";
option go_package = "google.golang.org/protobuf/cmd/protoc-gen-go/testdata/retention";
// Retention attributes set on fields nested within a message
message OptionsMessage {
optional int32 plain_field = 1;
optional int32 runtime_retention_field = 2 [retention = RETENTION_RUNTIME];
optional int32 source_retention_field = 3 [retention = RETENTION_SOURCE];
}
extend google.protobuf.FileOptions {
optional int32 imported_plain_option = 511807920;
optional int32 imported_runtime_retention_option = 512484074
[retention = RETENTION_RUNTIME];
optional int32 imported_source_retention_option = 512645287
[retention = RETENTION_SOURCE];
}
extend google.protobuf.FileOptions {
optional OptionsMessage file_option = 504871168;
}

725
cmd/protoc-gen-go/testdata/retention/retention.pb.go vendored Executable file
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@ -0,0 +1,725 @@
// Copyright 2020 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.
// Code generated by protoc-gen-go. DO NOT EDIT.
// source: cmd/protoc-gen-go/testdata/retention/retention.proto
package retention
import (
protoreflect "google.golang.org/protobuf/reflect/protoreflect"
protoimpl "google.golang.org/protobuf/runtime/protoimpl"
descriptorpb "google.golang.org/protobuf/types/descriptorpb"
reflect "reflect"
sync "sync"
)
type TopLevelEnum int32
const (
TopLevelEnum_TOP_LEVEL_UNKNOWN TopLevelEnum = 0
)
// Enum value maps for TopLevelEnum.
var (
TopLevelEnum_name = map[int32]string{
0: "TOP_LEVEL_UNKNOWN",
}
TopLevelEnum_value = map[string]int32{
"TOP_LEVEL_UNKNOWN": 0,
}
)
func (x TopLevelEnum) Enum() *TopLevelEnum {
p := new(TopLevelEnum)
*p = x
return p
}
func (x TopLevelEnum) String() string {
return protoimpl.X.EnumStringOf(x.Descriptor(), protoreflect.EnumNumber(x))
}
func (TopLevelEnum) Descriptor() protoreflect.EnumDescriptor {
return file_cmd_protoc_gen_go_testdata_retention_retention_proto_enumTypes[0].Descriptor()
}
func (TopLevelEnum) Type() protoreflect.EnumType {
return &file_cmd_protoc_gen_go_testdata_retention_retention_proto_enumTypes[0]
}
func (x TopLevelEnum) Number() protoreflect.EnumNumber {
return protoreflect.EnumNumber(x)
}
// Deprecated: Do not use.
func (x *TopLevelEnum) UnmarshalJSON(b []byte) error {
num, err := protoimpl.X.UnmarshalJSONEnum(x.Descriptor(), b)
if err != nil {
return err
}
*x = TopLevelEnum(num)
return nil
}
// Deprecated: Use TopLevelEnum.Descriptor instead.
func (TopLevelEnum) EnumDescriptor() ([]byte, []int) {
return file_cmd_protoc_gen_go_testdata_retention_retention_proto_rawDescGZIP(), []int{0}
}
type TopLevelMessage_NestedEnum int32
const (
TopLevelMessage_NESTED_UNKNOWN TopLevelMessage_NestedEnum = 0
)
// Enum value maps for TopLevelMessage_NestedEnum.
var (
TopLevelMessage_NestedEnum_name = map[int32]string{
0: "NESTED_UNKNOWN",
}
TopLevelMessage_NestedEnum_value = map[string]int32{
"NESTED_UNKNOWN": 0,
}
)
func (x TopLevelMessage_NestedEnum) Enum() *TopLevelMessage_NestedEnum {
p := new(TopLevelMessage_NestedEnum)
*p = x
return p
}
func (x TopLevelMessage_NestedEnum) String() string {
return protoimpl.X.EnumStringOf(x.Descriptor(), protoreflect.EnumNumber(x))
}
func (TopLevelMessage_NestedEnum) Descriptor() protoreflect.EnumDescriptor {
return file_cmd_protoc_gen_go_testdata_retention_retention_proto_enumTypes[1].Descriptor()
}
func (TopLevelMessage_NestedEnum) Type() protoreflect.EnumType {
return &file_cmd_protoc_gen_go_testdata_retention_retention_proto_enumTypes[1]
}
func (x TopLevelMessage_NestedEnum) Number() protoreflect.EnumNumber {
return protoreflect.EnumNumber(x)
}
// Deprecated: Do not use.
func (x *TopLevelMessage_NestedEnum) UnmarshalJSON(b []byte) error {
num, err := protoimpl.X.UnmarshalJSONEnum(x.Descriptor(), b)
if err != nil {
return err
}
*x = TopLevelMessage_NestedEnum(num)
return nil
}
// Deprecated: Use TopLevelMessage_NestedEnum.Descriptor instead.
func (TopLevelMessage_NestedEnum) EnumDescriptor() ([]byte, []int) {
return file_cmd_protoc_gen_go_testdata_retention_retention_proto_rawDescGZIP(), []int{1, 0}
}
type Extendee struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
extensionFields protoimpl.ExtensionFields
}
func (x *Extendee) Reset() {
*x = Extendee{}
if protoimpl.UnsafeEnabled {
mi := &file_cmd_protoc_gen_go_testdata_retention_retention_proto_msgTypes[0]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
}
func (x *Extendee) String() string {
return protoimpl.X.MessageStringOf(x)
}
func (*Extendee) ProtoMessage() {}
func (x *Extendee) ProtoReflect() protoreflect.Message {
mi := &file_cmd_protoc_gen_go_testdata_retention_retention_proto_msgTypes[0]
if protoimpl.UnsafeEnabled && x != nil {
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
if ms.LoadMessageInfo() == nil {
ms.StoreMessageInfo(mi)
}
return ms
}
return mi.MessageOf(x)
}
// Deprecated: Use Extendee.ProtoReflect.Descriptor instead.
func (*Extendee) Descriptor() ([]byte, []int) {
return file_cmd_protoc_gen_go_testdata_retention_retention_proto_rawDescGZIP(), []int{0}
}
type TopLevelMessage struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
extensionFields protoimpl.ExtensionFields
F *float32 `protobuf:"fixed32,1,opt,name=f" json:"f,omitempty"`
// Types that are assignable to O:
//
// *TopLevelMessage_I
O isTopLevelMessage_O `protobuf_oneof:"o"`
}
func (x *TopLevelMessage) Reset() {
*x = TopLevelMessage{}
if protoimpl.UnsafeEnabled {
mi := &file_cmd_protoc_gen_go_testdata_retention_retention_proto_msgTypes[1]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
}
func (x *TopLevelMessage) String() string {
return protoimpl.X.MessageStringOf(x)
}
func (*TopLevelMessage) ProtoMessage() {}
func (x *TopLevelMessage) ProtoReflect() protoreflect.Message {
mi := &file_cmd_protoc_gen_go_testdata_retention_retention_proto_msgTypes[1]
if protoimpl.UnsafeEnabled && x != nil {
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
if ms.LoadMessageInfo() == nil {
ms.StoreMessageInfo(mi)
}
return ms
}
return mi.MessageOf(x)
}
// Deprecated: Use TopLevelMessage.ProtoReflect.Descriptor instead.
func (*TopLevelMessage) Descriptor() ([]byte, []int) {
return file_cmd_protoc_gen_go_testdata_retention_retention_proto_rawDescGZIP(), []int{1}
}
func (x *TopLevelMessage) GetF() float32 {
if x != nil && x.F != nil {
return *x.F
}
return 0
}
func (m *TopLevelMessage) GetO() isTopLevelMessage_O {
if m != nil {
return m.O
}
return nil
}
func (x *TopLevelMessage) GetI() int64 {
if x, ok := x.GetO().(*TopLevelMessage_I); ok {
return x.I
}
return 0
}
type isTopLevelMessage_O interface {
isTopLevelMessage_O()
}
type TopLevelMessage_I struct {
I int64 `protobuf:"varint,2,opt,name=i,oneof"`
}
func (*TopLevelMessage_I) isTopLevelMessage_O() {}
type TopLevelMessage_NestedMessage struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
}
func (x *TopLevelMessage_NestedMessage) Reset() {
*x = TopLevelMessage_NestedMessage{}
if protoimpl.UnsafeEnabled {
mi := &file_cmd_protoc_gen_go_testdata_retention_retention_proto_msgTypes[2]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
}
func (x *TopLevelMessage_NestedMessage) String() string {
return protoimpl.X.MessageStringOf(x)
}
func (*TopLevelMessage_NestedMessage) ProtoMessage() {}
func (x *TopLevelMessage_NestedMessage) ProtoReflect() protoreflect.Message {
mi := &file_cmd_protoc_gen_go_testdata_retention_retention_proto_msgTypes[2]
if protoimpl.UnsafeEnabled && x != nil {
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
if ms.LoadMessageInfo() == nil {
ms.StoreMessageInfo(mi)
}
return ms
}
return mi.MessageOf(x)
}
// Deprecated: Use TopLevelMessage_NestedMessage.ProtoReflect.Descriptor instead.
func (*TopLevelMessage_NestedMessage) Descriptor() ([]byte, []int) {
return file_cmd_protoc_gen_go_testdata_retention_retention_proto_rawDescGZIP(), []int{1, 0}
}
var file_cmd_protoc_gen_go_testdata_retention_retention_proto_extTypes = []protoimpl.ExtensionInfo{
{
ExtendedType: (*descriptorpb.FileOptions)(nil),
ExtensionType: (*int32)(nil),
Field: 505092806,
Name: "testretention.plain_option",
Tag: "varint,505092806,opt,name=plain_option",
Filename: "cmd/protoc-gen-go/testdata/retention/retention.proto",
},
{
ExtendedType: (*descriptorpb.FileOptions)(nil),
ExtensionType: (*int32)(nil),
Field: 505039132,
Name: "testretention.runtime_retention_option",
Tag: "varint,505039132,opt,name=runtime_retention_option",
Filename: "cmd/protoc-gen-go/testdata/retention/retention.proto",
},
{
ExtendedType: (*descriptorpb.FileOptions)(nil),
ExtensionType: (*int32)(nil),
Field: 504878676,
Name: "testretention.source_retention_option",
Tag: "varint,504878676,opt,name=source_retention_option",
Filename: "cmd/protoc-gen-go/testdata/retention/retention.proto",
},
{
ExtendedType: (*descriptorpb.FileOptions)(nil),
ExtensionType: ([]*OptionsMessage)(nil),
Field: 504823570,
Name: "testretention.repeated_options",
Tag: "bytes,504823570,rep,name=repeated_options",
Filename: "cmd/protoc-gen-go/testdata/retention/retention.proto",
},
{
ExtendedType: (*descriptorpb.ExtensionRangeOptions)(nil),
ExtensionType: (*OptionsMessage)(nil),
Field: 504822148,
Name: "testretention.extension_range_option",
Tag: "bytes,504822148,opt,name=extension_range_option",
Filename: "cmd/protoc-gen-go/testdata/retention/retention.proto",
},
{
ExtendedType: (*descriptorpb.MessageOptions)(nil),
ExtensionType: (*OptionsMessage)(nil),
Field: 504820819,
Name: "testretention.message_option",
Tag: "bytes,504820819,opt,name=message_option",
Filename: "cmd/protoc-gen-go/testdata/retention/retention.proto",
},
{
ExtendedType: (*descriptorpb.FieldOptions)(nil),
ExtensionType: (*OptionsMessage)(nil),
Field: 504589219,
Name: "testretention.field_option",
Tag: "bytes,504589219,opt,name=field_option",
Filename: "cmd/protoc-gen-go/testdata/retention/retention.proto",
},
{
ExtendedType: (*descriptorpb.OneofOptions)(nil),
ExtensionType: (*OptionsMessage)(nil),
Field: 504479153,
Name: "testretention.oneof_option",
Tag: "bytes,504479153,opt,name=oneof_option",
Filename: "cmd/protoc-gen-go/testdata/retention/retention.proto",
},
{
ExtendedType: (*descriptorpb.EnumOptions)(nil),
ExtensionType: (*OptionsMessage)(nil),
Field: 504451567,
Name: "testretention.enum_option",
Tag: "bytes,504451567,opt,name=enum_option",
Filename: "cmd/protoc-gen-go/testdata/retention/retention.proto",
},
{
ExtendedType: (*descriptorpb.EnumValueOptions)(nil),
ExtensionType: (*OptionsMessage)(nil),
Field: 504450522,
Name: "testretention.enum_entry_option",
Tag: "bytes,504450522,opt,name=enum_entry_option",
Filename: "cmd/protoc-gen-go/testdata/retention/retention.proto",
},
{
ExtendedType: (*descriptorpb.ServiceOptions)(nil),
ExtensionType: (*OptionsMessage)(nil),
Field: 504387709,
Name: "testretention.service_option",
Tag: "bytes,504387709,opt,name=service_option",
Filename: "cmd/protoc-gen-go/testdata/retention/retention.proto",
},
{
ExtendedType: (*descriptorpb.MethodOptions)(nil),
ExtensionType: (*OptionsMessage)(nil),
Field: 504349420,
Name: "testretention.method_option",
Tag: "bytes,504349420,opt,name=method_option",
Filename: "cmd/protoc-gen-go/testdata/retention/retention.proto",
},
{
ExtendedType: (*Extendee)(nil),
ExtensionType: (*int32)(nil),
Field: 1,
Name: "testretention.i",
Tag: "varint,1,opt,name=i",
Filename: "cmd/protoc-gen-go/testdata/retention/retention.proto",
},
{
ExtendedType: (*Extendee)(nil),
ExtensionType: (*string)(nil),
Field: 2,
Name: "testretention.TopLevelMessage.s",
Tag: "bytes,2,opt,name=s",
Filename: "cmd/protoc-gen-go/testdata/retention/retention.proto",
},
}
// Extension fields to descriptorpb.FileOptions.
var (
// optional int32 plain_option = 505092806;
E_PlainOption = &file_cmd_protoc_gen_go_testdata_retention_retention_proto_extTypes[0]
// optional int32 runtime_retention_option = 505039132;
E_RuntimeRetentionOption = &file_cmd_protoc_gen_go_testdata_retention_retention_proto_extTypes[1]
// optional int32 source_retention_option = 504878676;
E_SourceRetentionOption = &file_cmd_protoc_gen_go_testdata_retention_retention_proto_extTypes[2]
// repeated testretention.OptionsMessage repeated_options = 504823570;
E_RepeatedOptions = &file_cmd_protoc_gen_go_testdata_retention_retention_proto_extTypes[3]
)
// Extension fields to descriptorpb.ExtensionRangeOptions.
var (
// optional testretention.OptionsMessage extension_range_option = 504822148;
E_ExtensionRangeOption = &file_cmd_protoc_gen_go_testdata_retention_retention_proto_extTypes[4]
)
// Extension fields to descriptorpb.MessageOptions.
var (
// optional testretention.OptionsMessage message_option = 504820819;
E_MessageOption = &file_cmd_protoc_gen_go_testdata_retention_retention_proto_extTypes[5]
)
// Extension fields to descriptorpb.FieldOptions.
var (
// optional testretention.OptionsMessage field_option = 504589219;
E_FieldOption = &file_cmd_protoc_gen_go_testdata_retention_retention_proto_extTypes[6]
)
// Extension fields to descriptorpb.OneofOptions.
var (
// optional testretention.OptionsMessage oneof_option = 504479153;
E_OneofOption = &file_cmd_protoc_gen_go_testdata_retention_retention_proto_extTypes[7]
)
// Extension fields to descriptorpb.EnumOptions.
var (
// optional testretention.OptionsMessage enum_option = 504451567;
E_EnumOption = &file_cmd_protoc_gen_go_testdata_retention_retention_proto_extTypes[8]
)
// Extension fields to descriptorpb.EnumValueOptions.
var (
// optional testretention.OptionsMessage enum_entry_option = 504450522;
E_EnumEntryOption = &file_cmd_protoc_gen_go_testdata_retention_retention_proto_extTypes[9]
)
// Extension fields to descriptorpb.ServiceOptions.
var (
// optional testretention.OptionsMessage service_option = 504387709;
E_ServiceOption = &file_cmd_protoc_gen_go_testdata_retention_retention_proto_extTypes[10]
)
// Extension fields to descriptorpb.MethodOptions.
var (
// optional testretention.OptionsMessage method_option = 504349420;
E_MethodOption = &file_cmd_protoc_gen_go_testdata_retention_retention_proto_extTypes[11]
)
// Extension fields to Extendee.
var (
// optional int32 i = 1;
E_I = &file_cmd_protoc_gen_go_testdata_retention_retention_proto_extTypes[12]
// optional string s = 2;
E_TopLevelMessage_S = &file_cmd_protoc_gen_go_testdata_retention_retention_proto_extTypes[13]
)
var File_cmd_protoc_gen_go_testdata_retention_retention_proto protoreflect.FileDescriptor
var file_cmd_protoc_gen_go_testdata_retention_retention_proto_rawDesc = []byte{
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}
var (
file_cmd_protoc_gen_go_testdata_retention_retention_proto_rawDescOnce sync.Once
file_cmd_protoc_gen_go_testdata_retention_retention_proto_rawDescData = file_cmd_protoc_gen_go_testdata_retention_retention_proto_rawDesc
)
func file_cmd_protoc_gen_go_testdata_retention_retention_proto_rawDescGZIP() []byte {
file_cmd_protoc_gen_go_testdata_retention_retention_proto_rawDescOnce.Do(func() {
file_cmd_protoc_gen_go_testdata_retention_retention_proto_rawDescData = protoimpl.X.CompressGZIP(file_cmd_protoc_gen_go_testdata_retention_retention_proto_rawDescData)
})
return file_cmd_protoc_gen_go_testdata_retention_retention_proto_rawDescData
}
var file_cmd_protoc_gen_go_testdata_retention_retention_proto_enumTypes = make([]protoimpl.EnumInfo, 2)
var file_cmd_protoc_gen_go_testdata_retention_retention_proto_msgTypes = make([]protoimpl.MessageInfo, 3)
var file_cmd_protoc_gen_go_testdata_retention_retention_proto_goTypes = []interface{}{
(TopLevelEnum)(0), // 0: testretention.TopLevelEnum
(TopLevelMessage_NestedEnum)(0), // 1: testretention.TopLevelMessage.NestedEnum
(*Extendee)(nil), // 2: testretention.Extendee
(*TopLevelMessage)(nil), // 3: testretention.TopLevelMessage
(*TopLevelMessage_NestedMessage)(nil), // 4: testretention.TopLevelMessage.NestedMessage
(*descriptorpb.FileOptions)(nil), // 5: google.protobuf.FileOptions
(*descriptorpb.ExtensionRangeOptions)(nil), // 6: google.protobuf.ExtensionRangeOptions
(*descriptorpb.MessageOptions)(nil), // 7: google.protobuf.MessageOptions
(*descriptorpb.FieldOptions)(nil), // 8: google.protobuf.FieldOptions
(*descriptorpb.OneofOptions)(nil), // 9: google.protobuf.OneofOptions
(*descriptorpb.EnumOptions)(nil), // 10: google.protobuf.EnumOptions
(*descriptorpb.EnumValueOptions)(nil), // 11: google.protobuf.EnumValueOptions
(*descriptorpb.ServiceOptions)(nil), // 12: google.protobuf.ServiceOptions
(*descriptorpb.MethodOptions)(nil), // 13: google.protobuf.MethodOptions
(*OptionsMessage)(nil), // 14: testretention.OptionsMessage
}
var file_cmd_protoc_gen_go_testdata_retention_retention_proto_depIdxs = []int32{
5, // 0: testretention.plain_option:extendee -> google.protobuf.FileOptions
5, // 1: testretention.runtime_retention_option:extendee -> google.protobuf.FileOptions
5, // 2: testretention.source_retention_option:extendee -> google.protobuf.FileOptions
5, // 3: testretention.repeated_options:extendee -> google.protobuf.FileOptions
6, // 4: testretention.extension_range_option:extendee -> google.protobuf.ExtensionRangeOptions
7, // 5: testretention.message_option:extendee -> google.protobuf.MessageOptions
8, // 6: testretention.field_option:extendee -> google.protobuf.FieldOptions
9, // 7: testretention.oneof_option:extendee -> google.protobuf.OneofOptions
10, // 8: testretention.enum_option:extendee -> google.protobuf.EnumOptions
11, // 9: testretention.enum_entry_option:extendee -> google.protobuf.EnumValueOptions
12, // 10: testretention.service_option:extendee -> google.protobuf.ServiceOptions
13, // 11: testretention.method_option:extendee -> google.protobuf.MethodOptions
2, // 12: testretention.i:extendee -> testretention.Extendee
2, // 13: testretention.TopLevelMessage.s:extendee -> testretention.Extendee
14, // 14: testretention.repeated_options:type_name -> testretention.OptionsMessage
14, // 15: testretention.extension_range_option:type_name -> testretention.OptionsMessage
14, // 16: testretention.message_option:type_name -> testretention.OptionsMessage
14, // 17: testretention.field_option:type_name -> testretention.OptionsMessage
14, // 18: testretention.oneof_option:type_name -> testretention.OptionsMessage
14, // 19: testretention.enum_option:type_name -> testretention.OptionsMessage
14, // 20: testretention.enum_entry_option:type_name -> testretention.OptionsMessage
14, // 21: testretention.service_option:type_name -> testretention.OptionsMessage
14, // 22: testretention.method_option:type_name -> testretention.OptionsMessage
3, // 23: testretention.Service.DoStuff:input_type -> testretention.TopLevelMessage
3, // 24: testretention.Service.DoStuff:output_type -> testretention.TopLevelMessage
24, // [24:25] is the sub-list for method output_type
23, // [23:24] is the sub-list for method input_type
14, // [14:23] is the sub-list for extension type_name
0, // [0:14] is the sub-list for extension extendee
0, // [0:0] is the sub-list for field type_name
}
func init() { file_cmd_protoc_gen_go_testdata_retention_retention_proto_init() }
func file_cmd_protoc_gen_go_testdata_retention_retention_proto_init() {
if File_cmd_protoc_gen_go_testdata_retention_retention_proto != nil {
return
}
file_cmd_protoc_gen_go_testdata_retention_options_message_proto_init()
if !protoimpl.UnsafeEnabled {
file_cmd_protoc_gen_go_testdata_retention_retention_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
switch v := v.(*Extendee); i {
case 0:
return &v.state
case 1:
return &v.sizeCache
case 2:
return &v.unknownFields
case 3:
return &v.extensionFields
default:
return nil
}
}
file_cmd_protoc_gen_go_testdata_retention_retention_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
switch v := v.(*TopLevelMessage); i {
case 0:
return &v.state
case 1:
return &v.sizeCache
case 2:
return &v.unknownFields
case 3:
return &v.extensionFields
default:
return nil
}
}
file_cmd_protoc_gen_go_testdata_retention_retention_proto_msgTypes[2].Exporter = func(v interface{}, i int) interface{} {
switch v := v.(*TopLevelMessage_NestedMessage); i {
case 0:
return &v.state
case 1:
return &v.sizeCache
case 2:
return &v.unknownFields
default:
return nil
}
}
}
file_cmd_protoc_gen_go_testdata_retention_retention_proto_msgTypes[1].OneofWrappers = []interface{}{
(*TopLevelMessage_I)(nil),
}
type x struct{}
out := protoimpl.TypeBuilder{
File: protoimpl.DescBuilder{
GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
RawDescriptor: file_cmd_protoc_gen_go_testdata_retention_retention_proto_rawDesc,
NumEnums: 2,
NumMessages: 3,
NumExtensions: 14,
NumServices: 1,
},
GoTypes: file_cmd_protoc_gen_go_testdata_retention_retention_proto_goTypes,
DependencyIndexes: file_cmd_protoc_gen_go_testdata_retention_retention_proto_depIdxs,
EnumInfos: file_cmd_protoc_gen_go_testdata_retention_retention_proto_enumTypes,
MessageInfos: file_cmd_protoc_gen_go_testdata_retention_retention_proto_msgTypes,
ExtensionInfos: file_cmd_protoc_gen_go_testdata_retention_retention_proto_extTypes,
}.Build()
File_cmd_protoc_gen_go_testdata_retention_retention_proto = out.File
file_cmd_protoc_gen_go_testdata_retention_retention_proto_rawDesc = nil
file_cmd_protoc_gen_go_testdata_retention_retention_proto_goTypes = nil
file_cmd_protoc_gen_go_testdata_retention_retention_proto_depIdxs = nil
}

176
cmd/protoc-gen-go/testdata/retention/retention.proto vendored Normal file
View File

@ -0,0 +1,176 @@
// Copyright 2020 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.
syntax = "proto2";
package testretention;
import "cmd/protoc-gen-go/testdata/retention/options_message.proto";
import "google/protobuf/descriptor.proto";
option go_package = "google.golang.org/protobuf/cmd/protoc-gen-go/testdata/retention";
option (imported_plain_option) = 1;
option (imported_runtime_retention_option) = 2;
option (imported_source_retention_option) = 3;
// Retention attributes set directly on custom options
extend google.protobuf.FileOptions {
optional int32 plain_option = 505092806;
optional int32 runtime_retention_option = 505039132
[retention = RETENTION_RUNTIME];
optional int32 source_retention_option = 504878676
[retention = RETENTION_SOURCE];
}
option (plain_option) = 1;
option (runtime_retention_option) = 2;
option (source_retention_option) = 3;
option (file_option) = {
plain_field: 1
runtime_retention_field: 2
source_retention_field: 3
};
// Retention attribute nested inside a repeated message field
extend google.protobuf.FileOptions {
repeated OptionsMessage repeated_options = 504823570;
}
option (repeated_options) = {
plain_field: 1
runtime_retention_field: 2
source_retention_field: 3
};
extend google.protobuf.ExtensionRangeOptions {
optional OptionsMessage extension_range_option = 504822148;
}
extend google.protobuf.MessageOptions {
optional OptionsMessage message_option = 504820819;
}
extend google.protobuf.FieldOptions {
optional OptionsMessage field_option = 504589219;
}
extend google.protobuf.OneofOptions {
optional OptionsMessage oneof_option = 504479153;
}
extend google.protobuf.EnumOptions {
optional OptionsMessage enum_option = 504451567;
}
extend google.protobuf.EnumValueOptions {
optional OptionsMessage enum_entry_option = 504450522;
}
extend google.protobuf.ServiceOptions {
optional OptionsMessage service_option = 504387709;
}
extend google.protobuf.MethodOptions {
optional OptionsMessage method_option = 504349420;
}
message Extendee {
extensions 1, 2;
}
extend Extendee {
optional int32 i = 1 [(field_option) = {
plain_field: 1
runtime_retention_field: 2
source_retention_field: 3
}];
}
message TopLevelMessage {
option (message_option) = {
plain_field: 1
runtime_retention_field: 2
source_retention_field: 3
};
message NestedMessage {
option (message_option) = {
plain_field: 1
runtime_retention_field: 2
source_retention_field: 3
};
}
enum NestedEnum {
option (enum_option) = {
plain_field: 1
runtime_retention_field: 2
source_retention_field: 3
};
NESTED_UNKNOWN = 0;
}
optional float f = 1 [(field_option) = {
plain_field: 1
runtime_retention_field: 2
source_retention_field: 3
}];
oneof o {
option (oneof_option) = {
plain_field: 1
runtime_retention_field: 2
source_retention_field: 3
};
int64 i = 2;
}
extensions 10 to 100 [(extension_range_option) = {
plain_field: 1
runtime_retention_field: 2
source_retention_field: 3
}];
extend Extendee {
optional string s = 2 [(field_option) = {
plain_field: 1
runtime_retention_field: 2
source_retention_field: 3
}];
}
}
enum TopLevelEnum {
option (enum_option) = {
plain_field: 1
runtime_retention_field: 2
source_retention_field: 3
};
TOP_LEVEL_UNKNOWN = 0 [(enum_entry_option) = {
plain_field: 1
runtime_retention_field: 2
source_retention_field: 3
}];
}
service Service {
option (service_option) = {
plain_field: 1
runtime_retention_field: 2
source_retention_field: 3
};
rpc DoStuff(TopLevelMessage) returns (TopLevelMessage) {
option (method_option) = {
plain_field: 1
runtime_retention_field: 2
source_retention_field: 3
};
}
}

96
compiler/protogen/protogen.go
View File

@ -36,6 +36,7 @@ import (
"google.golang.org/protobuf/reflect/protoregistry"
"google.golang.org/protobuf/types/descriptorpb"
"google.golang.org/protobuf/types/dynamicpb"
"google.golang.org/protobuf/types/pluginpb"
)
@ -209,6 +210,7 @@ func (opts Options) New(req *pluginpb.CodeGeneratorRequest) (*Plugin, error) {
}
}
}
// When the module= option is provided, we strip the module name
// prefix from generated files. This only makes sense if generated
// filenames are based on the import path.
@ -298,6 +300,8 @@ func (opts Options) New(req *pluginpb.CodeGeneratorRequest) (*Plugin, error) {
}
}
// The extracted types from the full import set
typeRegistry := newExtensionRegistry()
for _, fdesc := range gen.Request.ProtoFile {
filename := fdesc.GetName()
if gen.FilesByPath[filename] != nil {
@ -309,6 +313,9 @@ func (opts Options) New(req *pluginpb.CodeGeneratorRequest) (*Plugin, error) {
}
gen.Files = append(gen.Files, f)
gen.FilesByPath[filename] = f
if err = typeRegistry.registerAllExtensionsFromFile(f.Desc); err != nil {
return nil, err
}
}
for _, filename := range gen.Request.FileToGenerate {
f, ok := gen.FilesByPath[filename]
@ -317,6 +324,20 @@ func (opts Options) New(req *pluginpb.CodeGeneratorRequest) (*Plugin, error) {
}
f.Generate = true
}
// Create fully-linked descriptors if new extensions were found
if typeRegistry.hasNovelExtensions() {
for _, f := range gen.Files {
b, err := proto.Marshal(f.Proto.ProtoReflect().Interface())
if err != nil {
return nil, err
}
err = proto.UnmarshalOptions{Resolver: typeRegistry}.Unmarshal(b, f.Proto)
if err != nil {
return nil, err
}
}
}
return gen, nil
}
@ -1259,3 +1280,78 @@ func (c Comments) String() string {
}
return string(b)
}
// extensionRegistry allows registration of new extensions defined in the .proto
// file for which we are generating bindings.
//
// Lookups consult the local type registry first and fall back to the base type
// registry which defaults to protoregistry.GlobalTypes
type extensionRegistry struct {
base *protoregistry.Types
local *protoregistry.Types
}
func newExtensionRegistry() *extensionRegistry {
return &extensionRegistry{
base: protoregistry.GlobalTypes,
local: &protoregistry.Types{},
}
}
// FindExtensionByName implements proto.UnmarshalOptions.FindExtensionByName
func (e *extensionRegistry) FindExtensionByName(field protoreflect.FullName) (protoreflect.ExtensionType, error) {
if xt, err := e.local.FindExtensionByName(field); err == nil {
return xt, nil
}
return e.base.FindExtensionByName(field)
}
// FindExtensionByNumber implements proto.UnmarshalOptions.FindExtensionByNumber
func (e *extensionRegistry) FindExtensionByNumber(message protoreflect.FullName, field protoreflect.FieldNumber) (protoreflect.ExtensionType, error) {
if xt, err := e.local.FindExtensionByNumber(message, field); err == nil {
return xt, nil
}
return e.base.FindExtensionByNumber(message, field)
}
func (e *extensionRegistry) hasNovelExtensions() bool {
return e.local.NumExtensions() > 0
}
func (e *extensionRegistry) registerAllExtensionsFromFile(f protoreflect.FileDescriptor) error {
if err := e.registerAllExtensions(f.Extensions()); err != nil {
return err
}
return nil
}
func (e *extensionRegistry) registerAllExtensionsFromMessage(ms protoreflect.MessageDescriptors) error {
for i := 0; i < ms.Len(); i++ {
m := ms.Get(i)
if err := e.registerAllExtensions(m.Extensions()); err != nil {
return err
}
}
return nil
}
func (e *extensionRegistry) registerAllExtensions(exts protoreflect.ExtensionDescriptors) error {
for i := 0; i < exts.Len(); i++ {
if err := e.registerExtension(exts.Get(i)); err != nil {
return err
}
}
return nil
}
// registerExtension adds the given extension to the type registry if an
// extension with that full name does not exist yet.
func (e *extensionRegistry) registerExtension(xd protoreflect.ExtensionDescriptor) error {
if _, err := e.FindExtensionByName(xd.FullName()); err != protoregistry.NotFound {
// Either the extension already exists or there was an error, either way we're done.
return err
}
return e.local.RegisterExtension(dynamicpb.NewExtensionType(xd))
}