internal/testprotos: hide all public testprotos

The encoding/testprotos and reflect/protoregistry/testprotos are
accessible by other modules. Move them under internal/testprotos
to dissuade programmers who are too lazy to use their own test protos
when they need one.

Change-Id: I3dbfbce74e68ef033ec252bed076861cb47dd21e
Reviewed-on: https://go-review.googlesource.com/c/protobuf/+/214341
Reviewed-by: Damien Neil <dneil@google.com>
diff --git a/internal/testprotos/registry/test.pb.go b/internal/testprotos/registry/test.pb.go
new file mode 100644
index 0000000..5e4ad66
--- /dev/null
+++ b/internal/testprotos/registry/test.pb.go
@@ -0,0 +1,581 @@
+// Copyright 2018 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.
+
+// Different proto type definitions for testing the Types registry.
+
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// source: registry/test.proto
+
+package registry
+
+import (
+	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
+	protoiface "google.golang.org/protobuf/runtime/protoiface"
+	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
+	reflect "reflect"
+	sync "sync"
+)
+
+type Enum1 int32
+
+const (
+	Enum1_ONE Enum1 = 1
+)
+
+// Enum value maps for Enum1.
+var (
+	Enum1_name = map[int32]string{
+		1: "ONE",
+	}
+	Enum1_value = map[string]int32{
+		"ONE": 1,
+	}
+)
+
+func (x Enum1) Enum() *Enum1 {
+	p := new(Enum1)
+	*p = x
+	return p
+}
+
+func (x Enum1) String() string {
+	return protoimpl.X.EnumStringOf(x.Descriptor(), protoreflect.EnumNumber(x))
+}
+
+func (Enum1) Descriptor() protoreflect.EnumDescriptor {
+	return file_registry_test_proto_enumTypes[0].Descriptor()
+}
+
+func (Enum1) Type() protoreflect.EnumType {
+	return &file_registry_test_proto_enumTypes[0]
+}
+
+func (x Enum1) Number() protoreflect.EnumNumber {
+	return protoreflect.EnumNumber(x)
+}
+
+// Deprecated: Do not use.
+func (x *Enum1) UnmarshalJSON(b []byte) error {
+	num, err := protoimpl.X.UnmarshalJSONEnum(x.Descriptor(), b)
+	if err != nil {
+		return err
+	}
+	*x = Enum1(num)
+	return nil
+}
+
+// Deprecated: Use Enum1.Descriptor instead.
+func (Enum1) EnumDescriptor() ([]byte, []int) {
+	return file_registry_test_proto_rawDescGZIP(), []int{0}
+}
+
+type Enum2 int32
+
+const (
+	Enum2_UNO Enum2 = 1
+)
+
+// Enum value maps for Enum2.
+var (
+	Enum2_name = map[int32]string{
+		1: "UNO",
+	}
+	Enum2_value = map[string]int32{
+		"UNO": 1,
+	}
+)
+
+func (x Enum2) Enum() *Enum2 {
+	p := new(Enum2)
+	*p = x
+	return p
+}
+
+func (x Enum2) String() string {
+	return protoimpl.X.EnumStringOf(x.Descriptor(), protoreflect.EnumNumber(x))
+}
+
+func (Enum2) Descriptor() protoreflect.EnumDescriptor {
+	return file_registry_test_proto_enumTypes[1].Descriptor()
+}
+
+func (Enum2) Type() protoreflect.EnumType {
+	return &file_registry_test_proto_enumTypes[1]
+}
+
+func (x Enum2) Number() protoreflect.EnumNumber {
+	return protoreflect.EnumNumber(x)
+}
+
+// Deprecated: Do not use.
+func (x *Enum2) UnmarshalJSON(b []byte) error {
+	num, err := protoimpl.X.UnmarshalJSONEnum(x.Descriptor(), b)
+	if err != nil {
+		return err
+	}
+	*x = Enum2(num)
+	return nil
+}
+
+// Deprecated: Use Enum2.Descriptor instead.
+func (Enum2) EnumDescriptor() ([]byte, []int) {
+	return file_registry_test_proto_rawDescGZIP(), []int{1}
+}
+
+type Enum3 int32
+
+const (
+	Enum3_YI Enum3 = 1
+)
+
+// Enum value maps for Enum3.
+var (
+	Enum3_name = map[int32]string{
+		1: "YI",
+	}
+	Enum3_value = map[string]int32{
+		"YI": 1,
+	}
+)
+
+func (x Enum3) Enum() *Enum3 {
+	p := new(Enum3)
+	*p = x
+	return p
+}
+
+func (x Enum3) String() string {
+	return protoimpl.X.EnumStringOf(x.Descriptor(), protoreflect.EnumNumber(x))
+}
+
+func (Enum3) Descriptor() protoreflect.EnumDescriptor {
+	return file_registry_test_proto_enumTypes[2].Descriptor()
+}
+
+func (Enum3) Type() protoreflect.EnumType {
+	return &file_registry_test_proto_enumTypes[2]
+}
+
+func (x Enum3) Number() protoreflect.EnumNumber {
+	return protoreflect.EnumNumber(x)
+}
+
+// Deprecated: Do not use.
+func (x *Enum3) UnmarshalJSON(b []byte) error {
+	num, err := protoimpl.X.UnmarshalJSONEnum(x.Descriptor(), b)
+	if err != nil {
+		return err
+	}
+	*x = Enum3(num)
+	return nil
+}
+
+// Deprecated: Use Enum3.Descriptor instead.
+func (Enum3) EnumDescriptor() ([]byte, []int) {
+	return file_registry_test_proto_rawDescGZIP(), []int{2}
+}
+
+type Message1 struct {
+	state           protoimpl.MessageState
+	sizeCache       protoimpl.SizeCache
+	unknownFields   protoimpl.UnknownFields
+	extensionFields protoimpl.ExtensionFields
+}
+
+func (x *Message1) Reset() {
+	*x = Message1{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_registry_test_proto_msgTypes[0]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *Message1) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*Message1) ProtoMessage() {}
+
+func (x *Message1) ProtoReflect() protoreflect.Message {
+	mi := &file_registry_test_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 Message1.ProtoReflect.Descriptor instead.
+func (*Message1) Descriptor() ([]byte, []int) {
+	return file_registry_test_proto_rawDescGZIP(), []int{0}
+}
+
+var extRange_Message1 = []protoiface.ExtensionRangeV1{
+	{Start: 10, End: 536870911},
+}
+
+// Deprecated: Use Message1.ProtoReflect.Descriptor.ExtensionRanges instead.
+func (*Message1) ExtensionRangeArray() []protoiface.ExtensionRangeV1 {
+	return extRange_Message1
+}
+
+type Message2 struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+}
+
+func (x *Message2) Reset() {
+	*x = Message2{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_registry_test_proto_msgTypes[1]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *Message2) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*Message2) ProtoMessage() {}
+
+func (x *Message2) ProtoReflect() protoreflect.Message {
+	mi := &file_registry_test_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 Message2.ProtoReflect.Descriptor instead.
+func (*Message2) Descriptor() ([]byte, []int) {
+	return file_registry_test_proto_rawDescGZIP(), []int{1}
+}
+
+type Message3 struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+}
+
+func (x *Message3) Reset() {
+	*x = Message3{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_registry_test_proto_msgTypes[2]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *Message3) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*Message3) ProtoMessage() {}
+
+func (x *Message3) ProtoReflect() protoreflect.Message {
+	mi := &file_registry_test_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 Message3.ProtoReflect.Descriptor instead.
+func (*Message3) Descriptor() ([]byte, []int) {
+	return file_registry_test_proto_rawDescGZIP(), []int{2}
+}
+
+type Message4 struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	BoolField *bool `protobuf:"varint,30,opt,name=bool_field,json=boolField" json:"bool_field,omitempty"`
+}
+
+func (x *Message4) Reset() {
+	*x = Message4{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_registry_test_proto_msgTypes[3]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *Message4) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*Message4) ProtoMessage() {}
+
+func (x *Message4) ProtoReflect() protoreflect.Message {
+	mi := &file_registry_test_proto_msgTypes[3]
+	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 Message4.ProtoReflect.Descriptor instead.
+func (*Message4) Descriptor() ([]byte, []int) {
+	return file_registry_test_proto_rawDescGZIP(), []int{3}
+}
+
+func (x *Message4) GetBoolField() bool {
+	if x != nil && x.BoolField != nil {
+		return *x.BoolField
+	}
+	return false
+}
+
+var file_registry_test_proto_extTypes = []protoimpl.ExtensionInfo{
+	{
+		ExtendedType:  (*Message1)(nil),
+		ExtensionType: (*string)(nil),
+		Field:         11,
+		Name:          "testprotos.string_field",
+		Tag:           "bytes,11,opt,name=string_field",
+		Filename:      "registry/test.proto",
+	},
+	{
+		ExtendedType:  (*Message1)(nil),
+		ExtensionType: (*Enum1)(nil),
+		Field:         12,
+		Name:          "testprotos.enum_field",
+		Tag:           "varint,12,opt,name=enum_field,enum=testprotos.Enum1",
+		Filename:      "registry/test.proto",
+	},
+	{
+		ExtendedType:  (*Message1)(nil),
+		ExtensionType: (*Message2)(nil),
+		Field:         13,
+		Name:          "testprotos.message_field",
+		Tag:           "bytes,13,opt,name=message_field",
+		Filename:      "registry/test.proto",
+	},
+	{
+		ExtendedType:  (*Message1)(nil),
+		ExtensionType: (*Message2)(nil),
+		Field:         21,
+		Name:          "testprotos.Message4.message_field",
+		Tag:           "bytes,21,opt,name=message_field",
+		Filename:      "registry/test.proto",
+	},
+	{
+		ExtendedType:  (*Message1)(nil),
+		ExtensionType: (*Enum1)(nil),
+		Field:         22,
+		Name:          "testprotos.Message4.enum_field",
+		Tag:           "varint,22,opt,name=enum_field,enum=testprotos.Enum1",
+		Filename:      "registry/test.proto",
+	},
+	{
+		ExtendedType:  (*Message1)(nil),
+		ExtensionType: (*string)(nil),
+		Field:         23,
+		Name:          "testprotos.Message4.string_field",
+		Tag:           "bytes,23,opt,name=string_field",
+		Filename:      "registry/test.proto",
+	},
+}
+
+// Extension fields to Message1.
+var (
+	// optional string string_field = 11;
+	E_StringField = &file_registry_test_proto_extTypes[0]
+	// optional testprotos.Enum1 enum_field = 12;
+	E_EnumField = &file_registry_test_proto_extTypes[1]
+	// optional testprotos.Message2 message_field = 13;
+	E_MessageField = &file_registry_test_proto_extTypes[2]
+	// optional testprotos.Message2 message_field = 21;
+	E_Message4_MessageField = &file_registry_test_proto_extTypes[3]
+	// optional testprotos.Enum1 enum_field = 22;
+	E_Message4_EnumField = &file_registry_test_proto_extTypes[4]
+	// optional string string_field = 23;
+	E_Message4_StringField = &file_registry_test_proto_extTypes[5]
+)
+
+var File_registry_test_proto protoreflect.FileDescriptor
+
+var file_registry_test_proto_rawDesc = []byte{
+	0x0a, 0x13, 0x72, 0x65, 0x67, 0x69, 0x73, 0x74, 0x72, 0x79, 0x2f, 0x74, 0x65, 0x73, 0x74, 0x2e,
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+}
+
+var (
+	file_registry_test_proto_rawDescOnce sync.Once
+	file_registry_test_proto_rawDescData = file_registry_test_proto_rawDesc
+)
+
+func file_registry_test_proto_rawDescGZIP() []byte {
+	file_registry_test_proto_rawDescOnce.Do(func() {
+		file_registry_test_proto_rawDescData = protoimpl.X.CompressGZIP(file_registry_test_proto_rawDescData)
+	})
+	return file_registry_test_proto_rawDescData
+}
+
+var file_registry_test_proto_enumTypes = make([]protoimpl.EnumInfo, 3)
+var file_registry_test_proto_msgTypes = make([]protoimpl.MessageInfo, 4)
+var file_registry_test_proto_goTypes = []interface{}{
+	(Enum1)(0),       // 0: testprotos.Enum1
+	(Enum2)(0),       // 1: testprotos.Enum2
+	(Enum3)(0),       // 2: testprotos.Enum3
+	(*Message1)(nil), // 3: testprotos.Message1
+	(*Message2)(nil), // 4: testprotos.Message2
+	(*Message3)(nil), // 5: testprotos.Message3
+	(*Message4)(nil), // 6: testprotos.Message4
+}
+var file_registry_test_proto_depIdxs = []int32{
+	3,  // 0: testprotos.string_field:extendee -> testprotos.Message1
+	3,  // 1: testprotos.enum_field:extendee -> testprotos.Message1
+	3,  // 2: testprotos.message_field:extendee -> testprotos.Message1
+	3,  // 3: testprotos.Message4.message_field:extendee -> testprotos.Message1
+	3,  // 4: testprotos.Message4.enum_field:extendee -> testprotos.Message1
+	3,  // 5: testprotos.Message4.string_field:extendee -> testprotos.Message1
+	0,  // 6: testprotos.enum_field:type_name -> testprotos.Enum1
+	4,  // 7: testprotos.message_field:type_name -> testprotos.Message2
+	4,  // 8: testprotos.Message4.message_field:type_name -> testprotos.Message2
+	0,  // 9: testprotos.Message4.enum_field:type_name -> testprotos.Enum1
+	10, // [10:10] is the sub-list for method output_type
+	10, // [10:10] is the sub-list for method input_type
+	6,  // [6:10] is the sub-list for extension type_name
+	0,  // [0:6] is the sub-list for extension extendee
+	0,  // [0:0] is the sub-list for field type_name
+}
+
+func init() { file_registry_test_proto_init() }
+func file_registry_test_proto_init() {
+	if File_registry_test_proto != nil {
+		return
+	}
+	if !protoimpl.UnsafeEnabled {
+		file_registry_test_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*Message1); 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_registry_test_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*Message2); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_registry_test_proto_msgTypes[2].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*Message3); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_registry_test_proto_msgTypes[3].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*Message4); 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_registry_test_proto_rawDesc,
+			NumEnums:      3,
+			NumMessages:   4,
+			NumExtensions: 6,
+			NumServices:   0,
+		},
+		GoTypes:           file_registry_test_proto_goTypes,
+		DependencyIndexes: file_registry_test_proto_depIdxs,
+		EnumInfos:         file_registry_test_proto_enumTypes,
+		MessageInfos:      file_registry_test_proto_msgTypes,
+		ExtensionInfos:    file_registry_test_proto_extTypes,
+	}.Build()
+	File_registry_test_proto = out.File
+	file_registry_test_proto_rawDesc = nil
+	file_registry_test_proto_goTypes = nil
+	file_registry_test_proto_depIdxs = nil
+}
diff --git a/internal/testprotos/registry/test.proto b/internal/testprotos/registry/test.proto
new file mode 100644
index 0000000..32452b0
--- /dev/null
+++ b/internal/testprotos/registry/test.proto
@@ -0,0 +1,45 @@
+// Copyright 2018 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.
+
+// Different proto type definitions for testing the Types registry.
+syntax = "proto2";
+
+package testprotos;
+option go_package = "google.golang.org/protobuf/internal/testprotos/registry";
+
+message Message1 {
+  extensions 10 to max;
+}
+
+message Message2 {}
+
+message Message3 {}
+
+enum Enum1 {
+  ONE = 1;
+}
+
+enum Enum2 {
+  UNO = 1;
+}
+
+enum Enum3 {
+  YI = 1;
+}
+
+extend Message1 {
+  optional string string_field = 11;
+  optional Enum1 enum_field = 12;
+  optional Message2 message_field = 13;
+}
+
+message Message4 {
+  optional bool bool_field = 30;
+
+  extend Message1 {
+    optional Message2 message_field = 21;
+    optional Enum1 enum_field = 22;
+    optional string string_field = 23;
+  }
+}
diff --git a/internal/testprotos/textpb2/test.pb.go b/internal/testprotos/textpb2/test.pb.go
new file mode 100644
index 0000000..cd8c2db
--- /dev/null
+++ b/internal/testprotos/textpb2/test.pb.go
@@ -0,0 +1,2511 @@
+// 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.
+
+// Test Protobuf definitions with proto2 syntax.
+
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// source: textpb2/test.proto
+
+package textpb2
+
+import (
+	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
+	protoiface "google.golang.org/protobuf/runtime/protoiface"
+	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
+	anypb "google.golang.org/protobuf/types/known/anypb"
+	durationpb "google.golang.org/protobuf/types/known/durationpb"
+	emptypb "google.golang.org/protobuf/types/known/emptypb"
+	fieldmaskpb "google.golang.org/protobuf/types/known/fieldmaskpb"
+	structpb "google.golang.org/protobuf/types/known/structpb"
+	timestamppb "google.golang.org/protobuf/types/known/timestamppb"
+	wrapperspb "google.golang.org/protobuf/types/known/wrapperspb"
+	reflect "reflect"
+	sync "sync"
+)
+
+type Enum int32
+
+const (
+	Enum_ONE Enum = 1
+	Enum_TWO Enum = 2
+	Enum_TEN Enum = 10
+)
+
+// Enum value maps for Enum.
+var (
+	Enum_name = map[int32]string{
+		1:  "ONE",
+		2:  "TWO",
+		10: "TEN",
+	}
+	Enum_value = map[string]int32{
+		"ONE": 1,
+		"TWO": 2,
+		"TEN": 10,
+	}
+)
+
+func (x Enum) Enum() *Enum {
+	p := new(Enum)
+	*p = x
+	return p
+}
+
+func (x Enum) String() string {
+	return protoimpl.X.EnumStringOf(x.Descriptor(), protoreflect.EnumNumber(x))
+}
+
+func (Enum) Descriptor() protoreflect.EnumDescriptor {
+	return file_textpb2_test_proto_enumTypes[0].Descriptor()
+}
+
+func (Enum) Type() protoreflect.EnumType {
+	return &file_textpb2_test_proto_enumTypes[0]
+}
+
+func (x Enum) Number() protoreflect.EnumNumber {
+	return protoreflect.EnumNumber(x)
+}
+
+// Deprecated: Do not use.
+func (x *Enum) UnmarshalJSON(b []byte) error {
+	num, err := protoimpl.X.UnmarshalJSONEnum(x.Descriptor(), b)
+	if err != nil {
+		return err
+	}
+	*x = Enum(num)
+	return nil
+}
+
+// Deprecated: Use Enum.Descriptor instead.
+func (Enum) EnumDescriptor() ([]byte, []int) {
+	return file_textpb2_test_proto_rawDescGZIP(), []int{0}
+}
+
+type Enums_NestedEnum int32
+
+const (
+	Enums_UNO  Enums_NestedEnum = 1
+	Enums_DOS  Enums_NestedEnum = 2
+	Enums_DIEZ Enums_NestedEnum = 10
+)
+
+// Enum value maps for Enums_NestedEnum.
+var (
+	Enums_NestedEnum_name = map[int32]string{
+		1:  "UNO",
+		2:  "DOS",
+		10: "DIEZ",
+	}
+	Enums_NestedEnum_value = map[string]int32{
+		"UNO":  1,
+		"DOS":  2,
+		"DIEZ": 10,
+	}
+)
+
+func (x Enums_NestedEnum) Enum() *Enums_NestedEnum {
+	p := new(Enums_NestedEnum)
+	*p = x
+	return p
+}
+
+func (x Enums_NestedEnum) String() string {
+	return protoimpl.X.EnumStringOf(x.Descriptor(), protoreflect.EnumNumber(x))
+}
+
+func (Enums_NestedEnum) Descriptor() protoreflect.EnumDescriptor {
+	return file_textpb2_test_proto_enumTypes[1].Descriptor()
+}
+
+func (Enums_NestedEnum) Type() protoreflect.EnumType {
+	return &file_textpb2_test_proto_enumTypes[1]
+}
+
+func (x Enums_NestedEnum) Number() protoreflect.EnumNumber {
+	return protoreflect.EnumNumber(x)
+}
+
+// Deprecated: Do not use.
+func (x *Enums_NestedEnum) UnmarshalJSON(b []byte) error {
+	num, err := protoimpl.X.UnmarshalJSONEnum(x.Descriptor(), b)
+	if err != nil {
+		return err
+	}
+	*x = Enums_NestedEnum(num)
+	return nil
+}
+
+// Deprecated: Use Enums_NestedEnum.Descriptor instead.
+func (Enums_NestedEnum) EnumDescriptor() ([]byte, []int) {
+	return file_textpb2_test_proto_rawDescGZIP(), []int{1, 0}
+}
+
+// Scalars contains optional scalar fields.
+type Scalars struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	OptBool     *bool    `protobuf:"varint,1,opt,name=opt_bool,json=optBool" json:"opt_bool,omitempty"`
+	OptInt32    *int32   `protobuf:"varint,2,opt,name=opt_int32,json=optInt32" json:"opt_int32,omitempty"`
+	OptInt64    *int64   `protobuf:"varint,3,opt,name=opt_int64,json=optInt64" json:"opt_int64,omitempty"`
+	OptUint32   *uint32  `protobuf:"varint,4,opt,name=opt_uint32,json=optUint32" json:"opt_uint32,omitempty"`
+	OptUint64   *uint64  `protobuf:"varint,5,opt,name=opt_uint64,json=optUint64" json:"opt_uint64,omitempty"`
+	OptSint32   *int32   `protobuf:"zigzag32,6,opt,name=opt_sint32,json=optSint32" json:"opt_sint32,omitempty"`
+	OptSint64   *int64   `protobuf:"zigzag64,7,opt,name=opt_sint64,json=optSint64" json:"opt_sint64,omitempty"`
+	OptFixed32  *uint32  `protobuf:"fixed32,8,opt,name=opt_fixed32,json=optFixed32" json:"opt_fixed32,omitempty"`
+	OptFixed64  *uint64  `protobuf:"fixed64,9,opt,name=opt_fixed64,json=optFixed64" json:"opt_fixed64,omitempty"`
+	OptSfixed32 *int32   `protobuf:"fixed32,10,opt,name=opt_sfixed32,json=optSfixed32" json:"opt_sfixed32,omitempty"`
+	OptSfixed64 *int64   `protobuf:"fixed64,11,opt,name=opt_sfixed64,json=optSfixed64" json:"opt_sfixed64,omitempty"`
+	OptFloat    *float32 `protobuf:"fixed32,20,opt,name=opt_float,json=optFloat" json:"opt_float,omitempty"`
+	OptDouble   *float64 `protobuf:"fixed64,21,opt,name=opt_double,json=optDouble" json:"opt_double,omitempty"`
+	OptBytes    []byte   `protobuf:"bytes,14,opt,name=opt_bytes,json=optBytes" json:"opt_bytes,omitempty"`
+	OptString   *string  `protobuf:"bytes,13,opt,name=opt_string,json=optString" json:"opt_string,omitempty"`
+}
+
+func (x *Scalars) Reset() {
+	*x = Scalars{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_textpb2_test_proto_msgTypes[0]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *Scalars) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*Scalars) ProtoMessage() {}
+
+func (x *Scalars) ProtoReflect() protoreflect.Message {
+	mi := &file_textpb2_test_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 Scalars.ProtoReflect.Descriptor instead.
+func (*Scalars) Descriptor() ([]byte, []int) {
+	return file_textpb2_test_proto_rawDescGZIP(), []int{0}
+}
+
+func (x *Scalars) GetOptBool() bool {
+	if x != nil && x.OptBool != nil {
+		return *x.OptBool
+	}
+	return false
+}
+
+func (x *Scalars) GetOptInt32() int32 {
+	if x != nil && x.OptInt32 != nil {
+		return *x.OptInt32
+	}
+	return 0
+}
+
+func (x *Scalars) GetOptInt64() int64 {
+	if x != nil && x.OptInt64 != nil {
+		return *x.OptInt64
+	}
+	return 0
+}
+
+func (x *Scalars) GetOptUint32() uint32 {
+	if x != nil && x.OptUint32 != nil {
+		return *x.OptUint32
+	}
+	return 0
+}
+
+func (x *Scalars) GetOptUint64() uint64 {
+	if x != nil && x.OptUint64 != nil {
+		return *x.OptUint64
+	}
+	return 0
+}
+
+func (x *Scalars) GetOptSint32() int32 {
+	if x != nil && x.OptSint32 != nil {
+		return *x.OptSint32
+	}
+	return 0
+}
+
+func (x *Scalars) GetOptSint64() int64 {
+	if x != nil && x.OptSint64 != nil {
+		return *x.OptSint64
+	}
+	return 0
+}
+
+func (x *Scalars) GetOptFixed32() uint32 {
+	if x != nil && x.OptFixed32 != nil {
+		return *x.OptFixed32
+	}
+	return 0
+}
+
+func (x *Scalars) GetOptFixed64() uint64 {
+	if x != nil && x.OptFixed64 != nil {
+		return *x.OptFixed64
+	}
+	return 0
+}
+
+func (x *Scalars) GetOptSfixed32() int32 {
+	if x != nil && x.OptSfixed32 != nil {
+		return *x.OptSfixed32
+	}
+	return 0
+}
+
+func (x *Scalars) GetOptSfixed64() int64 {
+	if x != nil && x.OptSfixed64 != nil {
+		return *x.OptSfixed64
+	}
+	return 0
+}
+
+func (x *Scalars) GetOptFloat() float32 {
+	if x != nil && x.OptFloat != nil {
+		return *x.OptFloat
+	}
+	return 0
+}
+
+func (x *Scalars) GetOptDouble() float64 {
+	if x != nil && x.OptDouble != nil {
+		return *x.OptDouble
+	}
+	return 0
+}
+
+func (x *Scalars) GetOptBytes() []byte {
+	if x != nil {
+		return x.OptBytes
+	}
+	return nil
+}
+
+func (x *Scalars) GetOptString() string {
+	if x != nil && x.OptString != nil {
+		return *x.OptString
+	}
+	return ""
+}
+
+// Message contains enum fields.
+type Enums struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	OptEnum       *Enum              `protobuf:"varint,1,opt,name=opt_enum,json=optEnum,enum=pb2.Enum" json:"opt_enum,omitempty"`
+	RptEnum       []Enum             `protobuf:"varint,2,rep,name=rpt_enum,json=rptEnum,enum=pb2.Enum" json:"rpt_enum,omitempty"`
+	OptNestedEnum *Enums_NestedEnum  `protobuf:"varint,3,opt,name=opt_nested_enum,json=optNestedEnum,enum=pb2.Enums_NestedEnum" json:"opt_nested_enum,omitempty"`
+	RptNestedEnum []Enums_NestedEnum `protobuf:"varint,4,rep,name=rpt_nested_enum,json=rptNestedEnum,enum=pb2.Enums_NestedEnum" json:"rpt_nested_enum,omitempty"`
+}
+
+func (x *Enums) Reset() {
+	*x = Enums{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_textpb2_test_proto_msgTypes[1]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *Enums) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*Enums) ProtoMessage() {}
+
+func (x *Enums) ProtoReflect() protoreflect.Message {
+	mi := &file_textpb2_test_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 Enums.ProtoReflect.Descriptor instead.
+func (*Enums) Descriptor() ([]byte, []int) {
+	return file_textpb2_test_proto_rawDescGZIP(), []int{1}
+}
+
+func (x *Enums) GetOptEnum() Enum {
+	if x != nil && x.OptEnum != nil {
+		return *x.OptEnum
+	}
+	return Enum_ONE
+}
+
+func (x *Enums) GetRptEnum() []Enum {
+	if x != nil {
+		return x.RptEnum
+	}
+	return nil
+}
+
+func (x *Enums) GetOptNestedEnum() Enums_NestedEnum {
+	if x != nil && x.OptNestedEnum != nil {
+		return *x.OptNestedEnum
+	}
+	return Enums_UNO
+}
+
+func (x *Enums) GetRptNestedEnum() []Enums_NestedEnum {
+	if x != nil {
+		return x.RptNestedEnum
+	}
+	return nil
+}
+
+// Message contains repeated fields.
+type Repeats struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	RptBool   []bool    `protobuf:"varint,1,rep,name=rpt_bool,json=rptBool" json:"rpt_bool,omitempty"`
+	RptInt32  []int32   `protobuf:"varint,2,rep,name=rpt_int32,json=rptInt32" json:"rpt_int32,omitempty"`
+	RptInt64  []int64   `protobuf:"varint,3,rep,name=rpt_int64,json=rptInt64" json:"rpt_int64,omitempty"`
+	RptUint32 []uint32  `protobuf:"varint,4,rep,name=rpt_uint32,json=rptUint32" json:"rpt_uint32,omitempty"`
+	RptUint64 []uint64  `protobuf:"varint,5,rep,name=rpt_uint64,json=rptUint64" json:"rpt_uint64,omitempty"`
+	RptFloat  []float32 `protobuf:"fixed32,6,rep,name=rpt_float,json=rptFloat" json:"rpt_float,omitempty"`
+	RptDouble []float64 `protobuf:"fixed64,7,rep,name=rpt_double,json=rptDouble" json:"rpt_double,omitempty"`
+	RptString []string  `protobuf:"bytes,8,rep,name=rpt_string,json=rptString" json:"rpt_string,omitempty"`
+	RptBytes  [][]byte  `protobuf:"bytes,9,rep,name=rpt_bytes,json=rptBytes" json:"rpt_bytes,omitempty"`
+}
+
+func (x *Repeats) Reset() {
+	*x = Repeats{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_textpb2_test_proto_msgTypes[2]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *Repeats) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*Repeats) ProtoMessage() {}
+
+func (x *Repeats) ProtoReflect() protoreflect.Message {
+	mi := &file_textpb2_test_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 Repeats.ProtoReflect.Descriptor instead.
+func (*Repeats) Descriptor() ([]byte, []int) {
+	return file_textpb2_test_proto_rawDescGZIP(), []int{2}
+}
+
+func (x *Repeats) GetRptBool() []bool {
+	if x != nil {
+		return x.RptBool
+	}
+	return nil
+}
+
+func (x *Repeats) GetRptInt32() []int32 {
+	if x != nil {
+		return x.RptInt32
+	}
+	return nil
+}
+
+func (x *Repeats) GetRptInt64() []int64 {
+	if x != nil {
+		return x.RptInt64
+	}
+	return nil
+}
+
+func (x *Repeats) GetRptUint32() []uint32 {
+	if x != nil {
+		return x.RptUint32
+	}
+	return nil
+}
+
+func (x *Repeats) GetRptUint64() []uint64 {
+	if x != nil {
+		return x.RptUint64
+	}
+	return nil
+}
+
+func (x *Repeats) GetRptFloat() []float32 {
+	if x != nil {
+		return x.RptFloat
+	}
+	return nil
+}
+
+func (x *Repeats) GetRptDouble() []float64 {
+	if x != nil {
+		return x.RptDouble
+	}
+	return nil
+}
+
+func (x *Repeats) GetRptString() []string {
+	if x != nil {
+		return x.RptString
+	}
+	return nil
+}
+
+func (x *Repeats) GetRptBytes() [][]byte {
+	if x != nil {
+		return x.RptBytes
+	}
+	return nil
+}
+
+// Message type used as submessage.
+type Nested struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	OptString *string `protobuf:"bytes,1,opt,name=opt_string,json=optString" json:"opt_string,omitempty"`
+	OptNested *Nested `protobuf:"bytes,2,opt,name=opt_nested,json=optNested" json:"opt_nested,omitempty"`
+}
+
+func (x *Nested) Reset() {
+	*x = Nested{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_textpb2_test_proto_msgTypes[3]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *Nested) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*Nested) ProtoMessage() {}
+
+func (x *Nested) ProtoReflect() protoreflect.Message {
+	mi := &file_textpb2_test_proto_msgTypes[3]
+	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 Nested.ProtoReflect.Descriptor instead.
+func (*Nested) Descriptor() ([]byte, []int) {
+	return file_textpb2_test_proto_rawDescGZIP(), []int{3}
+}
+
+func (x *Nested) GetOptString() string {
+	if x != nil && x.OptString != nil {
+		return *x.OptString
+	}
+	return ""
+}
+
+func (x *Nested) GetOptNested() *Nested {
+	if x != nil {
+		return x.OptNested
+	}
+	return nil
+}
+
+// Message contains message and group fields.
+type Nests struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	OptNested *Nested           `protobuf:"bytes,1,opt,name=opt_nested,json=optNested" json:"opt_nested,omitempty"`
+	Optgroup  *Nests_OptGroup   `protobuf:"group,2,opt,name=OptGroup,json=optgroup" json:"optgroup,omitempty"`
+	RptNested []*Nested         `protobuf:"bytes,4,rep,name=rpt_nested,json=rptNested" json:"rpt_nested,omitempty"`
+	Rptgroup  []*Nests_RptGroup `protobuf:"group,5,rep,name=RptGroup,json=rptgroup" json:"rptgroup,omitempty"`
+}
+
+func (x *Nests) Reset() {
+	*x = Nests{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_textpb2_test_proto_msgTypes[4]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *Nests) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*Nests) ProtoMessage() {}
+
+func (x *Nests) ProtoReflect() protoreflect.Message {
+	mi := &file_textpb2_test_proto_msgTypes[4]
+	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 Nests.ProtoReflect.Descriptor instead.
+func (*Nests) Descriptor() ([]byte, []int) {
+	return file_textpb2_test_proto_rawDescGZIP(), []int{4}
+}
+
+func (x *Nests) GetOptNested() *Nested {
+	if x != nil {
+		return x.OptNested
+	}
+	return nil
+}
+
+func (x *Nests) GetOptgroup() *Nests_OptGroup {
+	if x != nil {
+		return x.Optgroup
+	}
+	return nil
+}
+
+func (x *Nests) GetRptNested() []*Nested {
+	if x != nil {
+		return x.RptNested
+	}
+	return nil
+}
+
+func (x *Nests) GetRptgroup() []*Nests_RptGroup {
+	if x != nil {
+		return x.Rptgroup
+	}
+	return nil
+}
+
+// Message contains required fields.
+type Requireds struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	ReqBool     *bool    `protobuf:"varint,1,req,name=req_bool,json=reqBool" json:"req_bool,omitempty"`
+	ReqSfixed64 *int64   `protobuf:"fixed64,2,req,name=req_sfixed64,json=reqSfixed64" json:"req_sfixed64,omitempty"`
+	ReqDouble   *float64 `protobuf:"fixed64,3,req,name=req_double,json=reqDouble" json:"req_double,omitempty"`
+	ReqString   *string  `protobuf:"bytes,4,req,name=req_string,json=reqString" json:"req_string,omitempty"`
+	ReqEnum     *Enum    `protobuf:"varint,5,req,name=req_enum,json=reqEnum,enum=pb2.Enum" json:"req_enum,omitempty"`
+	ReqNested   *Nested  `protobuf:"bytes,6,req,name=req_nested,json=reqNested" json:"req_nested,omitempty"`
+}
+
+func (x *Requireds) Reset() {
+	*x = Requireds{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_textpb2_test_proto_msgTypes[5]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *Requireds) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*Requireds) ProtoMessage() {}
+
+func (x *Requireds) ProtoReflect() protoreflect.Message {
+	mi := &file_textpb2_test_proto_msgTypes[5]
+	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 Requireds.ProtoReflect.Descriptor instead.
+func (*Requireds) Descriptor() ([]byte, []int) {
+	return file_textpb2_test_proto_rawDescGZIP(), []int{5}
+}
+
+func (x *Requireds) GetReqBool() bool {
+	if x != nil && x.ReqBool != nil {
+		return *x.ReqBool
+	}
+	return false
+}
+
+func (x *Requireds) GetReqSfixed64() int64 {
+	if x != nil && x.ReqSfixed64 != nil {
+		return *x.ReqSfixed64
+	}
+	return 0
+}
+
+func (x *Requireds) GetReqDouble() float64 {
+	if x != nil && x.ReqDouble != nil {
+		return *x.ReqDouble
+	}
+	return 0
+}
+
+func (x *Requireds) GetReqString() string {
+	if x != nil && x.ReqString != nil {
+		return *x.ReqString
+	}
+	return ""
+}
+
+func (x *Requireds) GetReqEnum() Enum {
+	if x != nil && x.ReqEnum != nil {
+		return *x.ReqEnum
+	}
+	return Enum_ONE
+}
+
+func (x *Requireds) GetReqNested() *Nested {
+	if x != nil {
+		return x.ReqNested
+	}
+	return nil
+}
+
+// Message contains both required and optional fields.
+type PartialRequired struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	ReqString *string `protobuf:"bytes,1,req,name=req_string,json=reqString" json:"req_string,omitempty"`
+	OptString *string `protobuf:"bytes,2,opt,name=opt_string,json=optString" json:"opt_string,omitempty"`
+}
+
+func (x *PartialRequired) Reset() {
+	*x = PartialRequired{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_textpb2_test_proto_msgTypes[6]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *PartialRequired) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*PartialRequired) ProtoMessage() {}
+
+func (x *PartialRequired) ProtoReflect() protoreflect.Message {
+	mi := &file_textpb2_test_proto_msgTypes[6]
+	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 PartialRequired.ProtoReflect.Descriptor instead.
+func (*PartialRequired) Descriptor() ([]byte, []int) {
+	return file_textpb2_test_proto_rawDescGZIP(), []int{6}
+}
+
+func (x *PartialRequired) GetReqString() string {
+	if x != nil && x.ReqString != nil {
+		return *x.ReqString
+	}
+	return ""
+}
+
+func (x *PartialRequired) GetOptString() string {
+	if x != nil && x.OptString != nil {
+		return *x.OptString
+	}
+	return ""
+}
+
+type NestedWithRequired struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	ReqString *string `protobuf:"bytes,1,req,name=req_string,json=reqString" json:"req_string,omitempty"`
+}
+
+func (x *NestedWithRequired) Reset() {
+	*x = NestedWithRequired{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_textpb2_test_proto_msgTypes[7]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *NestedWithRequired) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*NestedWithRequired) ProtoMessage() {}
+
+func (x *NestedWithRequired) ProtoReflect() protoreflect.Message {
+	mi := &file_textpb2_test_proto_msgTypes[7]
+	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 NestedWithRequired.ProtoReflect.Descriptor instead.
+func (*NestedWithRequired) Descriptor() ([]byte, []int) {
+	return file_textpb2_test_proto_rawDescGZIP(), []int{7}
+}
+
+func (x *NestedWithRequired) GetReqString() string {
+	if x != nil && x.ReqString != nil {
+		return *x.ReqString
+	}
+	return ""
+}
+
+type IndirectRequired struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	OptNested   *NestedWithRequired            `protobuf:"bytes,1,opt,name=opt_nested,json=optNested" json:"opt_nested,omitempty"`
+	RptNested   []*NestedWithRequired          `protobuf:"bytes,2,rep,name=rpt_nested,json=rptNested" json:"rpt_nested,omitempty"`
+	StrToNested map[string]*NestedWithRequired `protobuf:"bytes,3,rep,name=str_to_nested,json=strToNested" json:"str_to_nested,omitempty" protobuf_key:"bytes,1,opt,name=key" protobuf_val:"bytes,2,opt,name=value"`
+	// Types that are assignable to Union:
+	//	*IndirectRequired_OneofNested
+	Union isIndirectRequired_Union `protobuf_oneof:"union"`
+}
+
+func (x *IndirectRequired) Reset() {
+	*x = IndirectRequired{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_textpb2_test_proto_msgTypes[8]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *IndirectRequired) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*IndirectRequired) ProtoMessage() {}
+
+func (x *IndirectRequired) ProtoReflect() protoreflect.Message {
+	mi := &file_textpb2_test_proto_msgTypes[8]
+	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 IndirectRequired.ProtoReflect.Descriptor instead.
+func (*IndirectRequired) Descriptor() ([]byte, []int) {
+	return file_textpb2_test_proto_rawDescGZIP(), []int{8}
+}
+
+func (x *IndirectRequired) GetOptNested() *NestedWithRequired {
+	if x != nil {
+		return x.OptNested
+	}
+	return nil
+}
+
+func (x *IndirectRequired) GetRptNested() []*NestedWithRequired {
+	if x != nil {
+		return x.RptNested
+	}
+	return nil
+}
+
+func (x *IndirectRequired) GetStrToNested() map[string]*NestedWithRequired {
+	if x != nil {
+		return x.StrToNested
+	}
+	return nil
+}
+
+func (m *IndirectRequired) GetUnion() isIndirectRequired_Union {
+	if m != nil {
+		return m.Union
+	}
+	return nil
+}
+
+func (x *IndirectRequired) GetOneofNested() *NestedWithRequired {
+	if x, ok := x.GetUnion().(*IndirectRequired_OneofNested); ok {
+		return x.OneofNested
+	}
+	return nil
+}
+
+type isIndirectRequired_Union interface {
+	isIndirectRequired_Union()
+}
+
+type IndirectRequired_OneofNested struct {
+	OneofNested *NestedWithRequired `protobuf:"bytes,4,opt,name=oneof_nested,json=oneofNested,oneof"`
+}
+
+func (*IndirectRequired_OneofNested) isIndirectRequired_Union() {}
+
+type Extensions struct {
+	state           protoimpl.MessageState
+	sizeCache       protoimpl.SizeCache
+	unknownFields   protoimpl.UnknownFields
+	extensionFields protoimpl.ExtensionFields
+
+	OptString *string `protobuf:"bytes,1,opt,name=opt_string,json=optString" json:"opt_string,omitempty"`
+	OptBool   *bool   `protobuf:"varint,101,opt,name=opt_bool,json=optBool" json:"opt_bool,omitempty"`
+	OptInt32  *int32  `protobuf:"varint,2,opt,name=opt_int32,json=optInt32" json:"opt_int32,omitempty"`
+}
+
+func (x *Extensions) Reset() {
+	*x = Extensions{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_textpb2_test_proto_msgTypes[9]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *Extensions) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*Extensions) ProtoMessage() {}
+
+func (x *Extensions) ProtoReflect() protoreflect.Message {
+	mi := &file_textpb2_test_proto_msgTypes[9]
+	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 Extensions.ProtoReflect.Descriptor instead.
+func (*Extensions) Descriptor() ([]byte, []int) {
+	return file_textpb2_test_proto_rawDescGZIP(), []int{9}
+}
+
+var extRange_Extensions = []protoiface.ExtensionRangeV1{
+	{Start: 20, End: 100},
+}
+
+// Deprecated: Use Extensions.ProtoReflect.Descriptor.ExtensionRanges instead.
+func (*Extensions) ExtensionRangeArray() []protoiface.ExtensionRangeV1 {
+	return extRange_Extensions
+}
+
+func (x *Extensions) GetOptString() string {
+	if x != nil && x.OptString != nil {
+		return *x.OptString
+	}
+	return ""
+}
+
+func (x *Extensions) GetOptBool() bool {
+	if x != nil && x.OptBool != nil {
+		return *x.OptBool
+	}
+	return false
+}
+
+func (x *Extensions) GetOptInt32() int32 {
+	if x != nil && x.OptInt32 != nil {
+		return *x.OptInt32
+	}
+	return 0
+}
+
+type ExtensionsContainer struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+}
+
+func (x *ExtensionsContainer) Reset() {
+	*x = ExtensionsContainer{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_textpb2_test_proto_msgTypes[10]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *ExtensionsContainer) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*ExtensionsContainer) ProtoMessage() {}
+
+func (x *ExtensionsContainer) ProtoReflect() protoreflect.Message {
+	mi := &file_textpb2_test_proto_msgTypes[10]
+	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 ExtensionsContainer.ProtoReflect.Descriptor instead.
+func (*ExtensionsContainer) Descriptor() ([]byte, []int) {
+	return file_textpb2_test_proto_rawDescGZIP(), []int{10}
+}
+
+type MessageSet struct {
+	state           protoimpl.MessageState
+	sizeCache       protoimpl.SizeCache
+	unknownFields   protoimpl.UnknownFields
+	extensionFields protoimpl.ExtensionFields
+}
+
+func (x *MessageSet) Reset() {
+	*x = MessageSet{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_textpb2_test_proto_msgTypes[11]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *MessageSet) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*MessageSet) ProtoMessage() {}
+
+func (x *MessageSet) ProtoReflect() protoreflect.Message {
+	mi := &file_textpb2_test_proto_msgTypes[11]
+	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 MessageSet.ProtoReflect.Descriptor instead.
+func (*MessageSet) Descriptor() ([]byte, []int) {
+	return file_textpb2_test_proto_rawDescGZIP(), []int{11}
+}
+
+var extRange_MessageSet = []protoiface.ExtensionRangeV1{
+	{Start: 4, End: 2147483646},
+}
+
+// Deprecated: Use MessageSet.ProtoReflect.Descriptor.ExtensionRanges instead.
+func (*MessageSet) ExtensionRangeArray() []protoiface.ExtensionRangeV1 {
+	return extRange_MessageSet
+}
+
+type MessageSetExtension struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	OptString *string `protobuf:"bytes,1,opt,name=opt_string,json=optString" json:"opt_string,omitempty"`
+}
+
+func (x *MessageSetExtension) Reset() {
+	*x = MessageSetExtension{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_textpb2_test_proto_msgTypes[12]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *MessageSetExtension) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*MessageSetExtension) ProtoMessage() {}
+
+func (x *MessageSetExtension) ProtoReflect() protoreflect.Message {
+	mi := &file_textpb2_test_proto_msgTypes[12]
+	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 MessageSetExtension.ProtoReflect.Descriptor instead.
+func (*MessageSetExtension) Descriptor() ([]byte, []int) {
+	return file_textpb2_test_proto_rawDescGZIP(), []int{12}
+}
+
+func (x *MessageSetExtension) GetOptString() string {
+	if x != nil && x.OptString != nil {
+		return *x.OptString
+	}
+	return ""
+}
+
+type FakeMessageSet struct {
+	state           protoimpl.MessageState
+	sizeCache       protoimpl.SizeCache
+	unknownFields   protoimpl.UnknownFields
+	extensionFields protoimpl.ExtensionFields
+}
+
+func (x *FakeMessageSet) Reset() {
+	*x = FakeMessageSet{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_textpb2_test_proto_msgTypes[13]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *FakeMessageSet) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*FakeMessageSet) ProtoMessage() {}
+
+func (x *FakeMessageSet) ProtoReflect() protoreflect.Message {
+	mi := &file_textpb2_test_proto_msgTypes[13]
+	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 FakeMessageSet.ProtoReflect.Descriptor instead.
+func (*FakeMessageSet) Descriptor() ([]byte, []int) {
+	return file_textpb2_test_proto_rawDescGZIP(), []int{13}
+}
+
+var extRange_FakeMessageSet = []protoiface.ExtensionRangeV1{
+	{Start: 4, End: 536870911},
+}
+
+// Deprecated: Use FakeMessageSet.ProtoReflect.Descriptor.ExtensionRanges instead.
+func (*FakeMessageSet) ExtensionRangeArray() []protoiface.ExtensionRangeV1 {
+	return extRange_FakeMessageSet
+}
+
+type FakeMessageSetExtension struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	OptString *string `protobuf:"bytes,1,opt,name=opt_string,json=optString" json:"opt_string,omitempty"`
+}
+
+func (x *FakeMessageSetExtension) Reset() {
+	*x = FakeMessageSetExtension{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_textpb2_test_proto_msgTypes[14]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *FakeMessageSetExtension) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*FakeMessageSetExtension) ProtoMessage() {}
+
+func (x *FakeMessageSetExtension) ProtoReflect() protoreflect.Message {
+	mi := &file_textpb2_test_proto_msgTypes[14]
+	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 FakeMessageSetExtension.ProtoReflect.Descriptor instead.
+func (*FakeMessageSetExtension) Descriptor() ([]byte, []int) {
+	return file_textpb2_test_proto_rawDescGZIP(), []int{14}
+}
+
+func (x *FakeMessageSetExtension) GetOptString() string {
+	if x != nil && x.OptString != nil {
+		return *x.OptString
+	}
+	return ""
+}
+
+// Message contains well-known type fields.
+type KnownTypes struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	OptBool      *wrapperspb.BoolValue   `protobuf:"bytes,1,opt,name=opt_bool,json=optBool" json:"opt_bool,omitempty"`
+	OptInt32     *wrapperspb.Int32Value  `protobuf:"bytes,2,opt,name=opt_int32,json=optInt32" json:"opt_int32,omitempty"`
+	OptInt64     *wrapperspb.Int64Value  `protobuf:"bytes,3,opt,name=opt_int64,json=optInt64" json:"opt_int64,omitempty"`
+	OptUint32    *wrapperspb.UInt32Value `protobuf:"bytes,4,opt,name=opt_uint32,json=optUint32" json:"opt_uint32,omitempty"`
+	OptUint64    *wrapperspb.UInt64Value `protobuf:"bytes,5,opt,name=opt_uint64,json=optUint64" json:"opt_uint64,omitempty"`
+	OptFloat     *wrapperspb.FloatValue  `protobuf:"bytes,6,opt,name=opt_float,json=optFloat" json:"opt_float,omitempty"`
+	OptDouble    *wrapperspb.DoubleValue `protobuf:"bytes,7,opt,name=opt_double,json=optDouble" json:"opt_double,omitempty"`
+	OptString    *wrapperspb.StringValue `protobuf:"bytes,8,opt,name=opt_string,json=optString" json:"opt_string,omitempty"`
+	OptBytes     *wrapperspb.BytesValue  `protobuf:"bytes,9,opt,name=opt_bytes,json=optBytes" json:"opt_bytes,omitempty"`
+	OptDuration  *durationpb.Duration    `protobuf:"bytes,20,opt,name=opt_duration,json=optDuration" json:"opt_duration,omitempty"`
+	OptTimestamp *timestamppb.Timestamp  `protobuf:"bytes,21,opt,name=opt_timestamp,json=optTimestamp" json:"opt_timestamp,omitempty"`
+	OptStruct    *structpb.Struct        `protobuf:"bytes,25,opt,name=opt_struct,json=optStruct" json:"opt_struct,omitempty"`
+	OptList      *structpb.ListValue     `protobuf:"bytes,26,opt,name=opt_list,json=optList" json:"opt_list,omitempty"`
+	OptValue     *structpb.Value         `protobuf:"bytes,27,opt,name=opt_value,json=optValue" json:"opt_value,omitempty"`
+	OptNull      *structpb.NullValue     `protobuf:"varint,28,opt,name=opt_null,json=optNull,enum=google.protobuf.NullValue" json:"opt_null,omitempty"`
+	OptEmpty     *emptypb.Empty          `protobuf:"bytes,30,opt,name=opt_empty,json=optEmpty" json:"opt_empty,omitempty"`
+	OptAny       *anypb.Any              `protobuf:"bytes,32,opt,name=opt_any,json=optAny" json:"opt_any,omitempty"`
+	OptFieldmask *fieldmaskpb.FieldMask  `protobuf:"bytes,40,opt,name=opt_fieldmask,json=optFieldmask" json:"opt_fieldmask,omitempty"`
+}
+
+func (x *KnownTypes) Reset() {
+	*x = KnownTypes{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_textpb2_test_proto_msgTypes[15]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *KnownTypes) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*KnownTypes) ProtoMessage() {}
+
+func (x *KnownTypes) ProtoReflect() protoreflect.Message {
+	mi := &file_textpb2_test_proto_msgTypes[15]
+	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 KnownTypes.ProtoReflect.Descriptor instead.
+func (*KnownTypes) Descriptor() ([]byte, []int) {
+	return file_textpb2_test_proto_rawDescGZIP(), []int{15}
+}
+
+func (x *KnownTypes) GetOptBool() *wrapperspb.BoolValue {
+	if x != nil {
+		return x.OptBool
+	}
+	return nil
+}
+
+func (x *KnownTypes) GetOptInt32() *wrapperspb.Int32Value {
+	if x != nil {
+		return x.OptInt32
+	}
+	return nil
+}
+
+func (x *KnownTypes) GetOptInt64() *wrapperspb.Int64Value {
+	if x != nil {
+		return x.OptInt64
+	}
+	return nil
+}
+
+func (x *KnownTypes) GetOptUint32() *wrapperspb.UInt32Value {
+	if x != nil {
+		return x.OptUint32
+	}
+	return nil
+}
+
+func (x *KnownTypes) GetOptUint64() *wrapperspb.UInt64Value {
+	if x != nil {
+		return x.OptUint64
+	}
+	return nil
+}
+
+func (x *KnownTypes) GetOptFloat() *wrapperspb.FloatValue {
+	if x != nil {
+		return x.OptFloat
+	}
+	return nil
+}
+
+func (x *KnownTypes) GetOptDouble() *wrapperspb.DoubleValue {
+	if x != nil {
+		return x.OptDouble
+	}
+	return nil
+}
+
+func (x *KnownTypes) GetOptString() *wrapperspb.StringValue {
+	if x != nil {
+		return x.OptString
+	}
+	return nil
+}
+
+func (x *KnownTypes) GetOptBytes() *wrapperspb.BytesValue {
+	if x != nil {
+		return x.OptBytes
+	}
+	return nil
+}
+
+func (x *KnownTypes) GetOptDuration() *durationpb.Duration {
+	if x != nil {
+		return x.OptDuration
+	}
+	return nil
+}
+
+func (x *KnownTypes) GetOptTimestamp() *timestamppb.Timestamp {
+	if x != nil {
+		return x.OptTimestamp
+	}
+	return nil
+}
+
+func (x *KnownTypes) GetOptStruct() *structpb.Struct {
+	if x != nil {
+		return x.OptStruct
+	}
+	return nil
+}
+
+func (x *KnownTypes) GetOptList() *structpb.ListValue {
+	if x != nil {
+		return x.OptList
+	}
+	return nil
+}
+
+func (x *KnownTypes) GetOptValue() *structpb.Value {
+	if x != nil {
+		return x.OptValue
+	}
+	return nil
+}
+
+func (x *KnownTypes) GetOptNull() structpb.NullValue {
+	if x != nil && x.OptNull != nil {
+		return *x.OptNull
+	}
+	return structpb.NullValue_NULL_VALUE
+}
+
+func (x *KnownTypes) GetOptEmpty() *emptypb.Empty {
+	if x != nil {
+		return x.OptEmpty
+	}
+	return nil
+}
+
+func (x *KnownTypes) GetOptAny() *anypb.Any {
+	if x != nil {
+		return x.OptAny
+	}
+	return nil
+}
+
+func (x *KnownTypes) GetOptFieldmask() *fieldmaskpb.FieldMask {
+	if x != nil {
+		return x.OptFieldmask
+	}
+	return nil
+}
+
+type Nests_OptGroup struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	OptString      *string                        `protobuf:"bytes,1,opt,name=opt_string,json=optString" json:"opt_string,omitempty"`
+	OptNested      *Nested                        `protobuf:"bytes,2,opt,name=opt_nested,json=optNested" json:"opt_nested,omitempty"`
+	Optnestedgroup *Nests_OptGroup_OptNestedGroup `protobuf:"group,3,opt,name=OptNestedGroup,json=optnestedgroup" json:"optnestedgroup,omitempty"`
+}
+
+func (x *Nests_OptGroup) Reset() {
+	*x = Nests_OptGroup{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_textpb2_test_proto_msgTypes[16]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *Nests_OptGroup) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*Nests_OptGroup) ProtoMessage() {}
+
+func (x *Nests_OptGroup) ProtoReflect() protoreflect.Message {
+	mi := &file_textpb2_test_proto_msgTypes[16]
+	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 Nests_OptGroup.ProtoReflect.Descriptor instead.
+func (*Nests_OptGroup) Descriptor() ([]byte, []int) {
+	return file_textpb2_test_proto_rawDescGZIP(), []int{4, 0}
+}
+
+func (x *Nests_OptGroup) GetOptString() string {
+	if x != nil && x.OptString != nil {
+		return *x.OptString
+	}
+	return ""
+}
+
+func (x *Nests_OptGroup) GetOptNested() *Nested {
+	if x != nil {
+		return x.OptNested
+	}
+	return nil
+}
+
+func (x *Nests_OptGroup) GetOptnestedgroup() *Nests_OptGroup_OptNestedGroup {
+	if x != nil {
+		return x.Optnestedgroup
+	}
+	return nil
+}
+
+type Nests_RptGroup struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	RptString []string `protobuf:"bytes,1,rep,name=rpt_string,json=rptString" json:"rpt_string,omitempty"`
+}
+
+func (x *Nests_RptGroup) Reset() {
+	*x = Nests_RptGroup{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_textpb2_test_proto_msgTypes[17]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *Nests_RptGroup) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*Nests_RptGroup) ProtoMessage() {}
+
+func (x *Nests_RptGroup) ProtoReflect() protoreflect.Message {
+	mi := &file_textpb2_test_proto_msgTypes[17]
+	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 Nests_RptGroup.ProtoReflect.Descriptor instead.
+func (*Nests_RptGroup) Descriptor() ([]byte, []int) {
+	return file_textpb2_test_proto_rawDescGZIP(), []int{4, 1}
+}
+
+func (x *Nests_RptGroup) GetRptString() []string {
+	if x != nil {
+		return x.RptString
+	}
+	return nil
+}
+
+type Nests_OptGroup_OptNestedGroup struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	OptFixed32 *uint32 `protobuf:"fixed32,1,opt,name=opt_fixed32,json=optFixed32" json:"opt_fixed32,omitempty"`
+}
+
+func (x *Nests_OptGroup_OptNestedGroup) Reset() {
+	*x = Nests_OptGroup_OptNestedGroup{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_textpb2_test_proto_msgTypes[18]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *Nests_OptGroup_OptNestedGroup) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*Nests_OptGroup_OptNestedGroup) ProtoMessage() {}
+
+func (x *Nests_OptGroup_OptNestedGroup) ProtoReflect() protoreflect.Message {
+	mi := &file_textpb2_test_proto_msgTypes[18]
+	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 Nests_OptGroup_OptNestedGroup.ProtoReflect.Descriptor instead.
+func (*Nests_OptGroup_OptNestedGroup) Descriptor() ([]byte, []int) {
+	return file_textpb2_test_proto_rawDescGZIP(), []int{4, 0, 0}
+}
+
+func (x *Nests_OptGroup_OptNestedGroup) GetOptFixed32() uint32 {
+	if x != nil && x.OptFixed32 != nil {
+		return *x.OptFixed32
+	}
+	return 0
+}
+
+var file_textpb2_test_proto_extTypes = []protoimpl.ExtensionInfo{
+	{
+		ExtendedType:  (*Extensions)(nil),
+		ExtensionType: (*bool)(nil),
+		Field:         21,
+		Name:          "pb2.opt_ext_bool",
+		Tag:           "varint,21,opt,name=opt_ext_bool",
+		Filename:      "textpb2/test.proto",
+	},
+	{
+		ExtendedType:  (*Extensions)(nil),
+		ExtensionType: (*string)(nil),
+		Field:         22,
+		Name:          "pb2.opt_ext_string",
+		Tag:           "bytes,22,opt,name=opt_ext_string",
+		Filename:      "textpb2/test.proto",
+	},
+	{
+		ExtendedType:  (*Extensions)(nil),
+		ExtensionType: (*Enum)(nil),
+		Field:         23,
+		Name:          "pb2.opt_ext_enum",
+		Tag:           "varint,23,opt,name=opt_ext_enum,enum=pb2.Enum",
+		Filename:      "textpb2/test.proto",
+	},
+	{
+		ExtendedType:  (*Extensions)(nil),
+		ExtensionType: (*Nested)(nil),
+		Field:         24,
+		Name:          "pb2.opt_ext_nested",
+		Tag:           "bytes,24,opt,name=opt_ext_nested",
+		Filename:      "textpb2/test.proto",
+	},
+	{
+		ExtendedType:  (*Extensions)(nil),
+		ExtensionType: (*PartialRequired)(nil),
+		Field:         25,
+		Name:          "pb2.opt_ext_partial",
+		Tag:           "bytes,25,opt,name=opt_ext_partial",
+		Filename:      "textpb2/test.proto",
+	},
+	{
+		ExtendedType:  (*Extensions)(nil),
+		ExtensionType: ([]uint32)(nil),
+		Field:         31,
+		Name:          "pb2.rpt_ext_fixed32",
+		Tag:           "fixed32,31,rep,name=rpt_ext_fixed32",
+		Filename:      "textpb2/test.proto",
+	},
+	{
+		ExtendedType:  (*Extensions)(nil),
+		ExtensionType: ([]Enum)(nil),
+		Field:         32,
+		Name:          "pb2.rpt_ext_enum",
+		Tag:           "varint,32,rep,name=rpt_ext_enum,enum=pb2.Enum",
+		Filename:      "textpb2/test.proto",
+	},
+	{
+		ExtendedType:  (*Extensions)(nil),
+		ExtensionType: ([]*Nested)(nil),
+		Field:         33,
+		Name:          "pb2.rpt_ext_nested",
+		Tag:           "bytes,33,rep,name=rpt_ext_nested",
+		Filename:      "textpb2/test.proto",
+	},
+	{
+		ExtendedType:  (*MessageSet)(nil),
+		ExtensionType: (*FakeMessageSetExtension)(nil),
+		Field:         50,
+		Name:          "pb2.message_set_extension",
+		Tag:           "bytes,50,opt,name=message_set_extension",
+		Filename:      "textpb2/test.proto",
+	},
+	{
+		ExtendedType:  (*Extensions)(nil),
+		ExtensionType: (*bool)(nil),
+		Field:         51,
+		Name:          "pb2.ExtensionsContainer.opt_ext_bool",
+		Tag:           "varint,51,opt,name=opt_ext_bool",
+		Filename:      "textpb2/test.proto",
+	},
+	{
+		ExtendedType:  (*Extensions)(nil),
+		ExtensionType: (*string)(nil),
+		Field:         52,
+		Name:          "pb2.ExtensionsContainer.opt_ext_string",
+		Tag:           "bytes,52,opt,name=opt_ext_string",
+		Filename:      "textpb2/test.proto",
+	},
+	{
+		ExtendedType:  (*Extensions)(nil),
+		ExtensionType: (*Enum)(nil),
+		Field:         53,
+		Name:          "pb2.ExtensionsContainer.opt_ext_enum",
+		Tag:           "varint,53,opt,name=opt_ext_enum,enum=pb2.Enum",
+		Filename:      "textpb2/test.proto",
+	},
+	{
+		ExtendedType:  (*Extensions)(nil),
+		ExtensionType: (*Nested)(nil),
+		Field:         54,
+		Name:          "pb2.ExtensionsContainer.opt_ext_nested",
+		Tag:           "bytes,54,opt,name=opt_ext_nested",
+		Filename:      "textpb2/test.proto",
+	},
+	{
+		ExtendedType:  (*Extensions)(nil),
+		ExtensionType: (*PartialRequired)(nil),
+		Field:         55,
+		Name:          "pb2.ExtensionsContainer.opt_ext_partial",
+		Tag:           "bytes,55,opt,name=opt_ext_partial",
+		Filename:      "textpb2/test.proto",
+	},
+	{
+		ExtendedType:  (*Extensions)(nil),
+		ExtensionType: ([]string)(nil),
+		Field:         61,
+		Name:          "pb2.ExtensionsContainer.rpt_ext_string",
+		Tag:           "bytes,61,rep,name=rpt_ext_string",
+		Filename:      "textpb2/test.proto",
+	},
+	{
+		ExtendedType:  (*Extensions)(nil),
+		ExtensionType: ([]Enum)(nil),
+		Field:         62,
+		Name:          "pb2.ExtensionsContainer.rpt_ext_enum",
+		Tag:           "varint,62,rep,name=rpt_ext_enum,enum=pb2.Enum",
+		Filename:      "textpb2/test.proto",
+	},
+	{
+		ExtendedType:  (*Extensions)(nil),
+		ExtensionType: ([]*Nested)(nil),
+		Field:         63,
+		Name:          "pb2.ExtensionsContainer.rpt_ext_nested",
+		Tag:           "bytes,63,rep,name=rpt_ext_nested",
+		Filename:      "textpb2/test.proto",
+	},
+	{
+		ExtendedType:  (*MessageSet)(nil),
+		ExtensionType: (*MessageSetExtension)(nil),
+		Field:         10,
+		Name:          "pb2.MessageSetExtension",
+		Tag:           "bytes,10,opt,name=message_set_extension",
+		Filename:      "textpb2/test.proto",
+	},
+	{
+		ExtendedType:  (*MessageSet)(nil),
+		ExtensionType: (*MessageSetExtension)(nil),
+		Field:         20,
+		Name:          "pb2.MessageSetExtension.not_message_set_extension",
+		Tag:           "bytes,20,opt,name=not_message_set_extension",
+		Filename:      "textpb2/test.proto",
+	},
+	{
+		ExtendedType:  (*MessageSet)(nil),
+		ExtensionType: (*Nested)(nil),
+		Field:         30,
+		Name:          "pb2.MessageSetExtension.ext_nested",
+		Tag:           "bytes,30,opt,name=ext_nested",
+		Filename:      "textpb2/test.proto",
+	},
+	{
+		ExtendedType:  (*FakeMessageSet)(nil),
+		ExtensionType: (*FakeMessageSetExtension)(nil),
+		Field:         10,
+		Name:          "pb2.FakeMessageSetExtension.message_set_extension",
+		Tag:           "bytes,10,opt,name=message_set_extension",
+		Filename:      "textpb2/test.proto",
+	},
+}
+
+// Extension fields to Extensions.
+var (
+	// optional bool opt_ext_bool = 21;
+	E_OptExtBool = &file_textpb2_test_proto_extTypes[0]
+	// optional string opt_ext_string = 22;
+	E_OptExtString = &file_textpb2_test_proto_extTypes[1]
+	// optional pb2.Enum opt_ext_enum = 23;
+	E_OptExtEnum = &file_textpb2_test_proto_extTypes[2]
+	// optional pb2.Nested opt_ext_nested = 24;
+	E_OptExtNested = &file_textpb2_test_proto_extTypes[3]
+	// optional pb2.PartialRequired opt_ext_partial = 25;
+	E_OptExtPartial = &file_textpb2_test_proto_extTypes[4]
+	// repeated fixed32 rpt_ext_fixed32 = 31;
+	E_RptExtFixed32 = &file_textpb2_test_proto_extTypes[5]
+	// repeated pb2.Enum rpt_ext_enum = 32;
+	E_RptExtEnum = &file_textpb2_test_proto_extTypes[6]
+	// repeated pb2.Nested rpt_ext_nested = 33;
+	E_RptExtNested = &file_textpb2_test_proto_extTypes[7]
+	// optional bool opt_ext_bool = 51;
+	E_ExtensionsContainer_OptExtBool = &file_textpb2_test_proto_extTypes[9]
+	// optional string opt_ext_string = 52;
+	E_ExtensionsContainer_OptExtString = &file_textpb2_test_proto_extTypes[10]
+	// optional pb2.Enum opt_ext_enum = 53;
+	E_ExtensionsContainer_OptExtEnum = &file_textpb2_test_proto_extTypes[11]
+	// optional pb2.Nested opt_ext_nested = 54;
+	E_ExtensionsContainer_OptExtNested = &file_textpb2_test_proto_extTypes[12]
+	// optional pb2.PartialRequired opt_ext_partial = 55;
+	E_ExtensionsContainer_OptExtPartial = &file_textpb2_test_proto_extTypes[13]
+	// repeated string rpt_ext_string = 61;
+	E_ExtensionsContainer_RptExtString = &file_textpb2_test_proto_extTypes[14]
+	// repeated pb2.Enum rpt_ext_enum = 62;
+	E_ExtensionsContainer_RptExtEnum = &file_textpb2_test_proto_extTypes[15]
+	// repeated pb2.Nested rpt_ext_nested = 63;
+	E_ExtensionsContainer_RptExtNested = &file_textpb2_test_proto_extTypes[16]
+)
+
+// Extension fields to MessageSet.
+var (
+	// optional pb2.FakeMessageSetExtension message_set_extension = 50;
+	E_MessageSetExtension = &file_textpb2_test_proto_extTypes[8]
+	// optional pb2.MessageSetExtension message_set_extension = 10;
+	E_MessageSetExtension_MessageSetExtension = &file_textpb2_test_proto_extTypes[17]
+	// optional pb2.MessageSetExtension not_message_set_extension = 20;
+	E_MessageSetExtension_NotMessageSetExtension = &file_textpb2_test_proto_extTypes[18]
+	// optional pb2.Nested ext_nested = 30;
+	E_MessageSetExtension_ExtNested = &file_textpb2_test_proto_extTypes[19]
+)
+
+// Extension fields to FakeMessageSet.
+var (
+	// optional pb2.FakeMessageSetExtension message_set_extension = 10;
+	E_FakeMessageSetExtension_MessageSetExtension = &file_textpb2_test_proto_extTypes[20]
+)
+
+var File_textpb2_test_proto protoreflect.FileDescriptor
+
+var file_textpb2_test_proto_rawDesc = []byte{
+	0x0a, 0x12, 0x74, 0x65, 0x78, 0x74, 0x70, 0x62, 0x32, 0x2f, 0x74, 0x65, 0x73, 0x74, 0x2e, 0x70,
+	0x72, 0x6f, 0x74, 0x6f, 0x12, 0x03, 0x70, 0x62, 0x32, 0x1a, 0x19, 0x67, 0x6f, 0x6f, 0x67, 0x6c,
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+	0x72, 0x6f, 0x74, 0x6f, 0x1a, 0x1b, 0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2f, 0x70, 0x72, 0x6f,
+	0x74, 0x6f, 0x62, 0x75, 0x66, 0x2f, 0x65, 0x6d, 0x70, 0x74, 0x79, 0x2e, 0x70, 0x72, 0x6f, 0x74,
+	0x6f, 0x1a, 0x20, 0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2f, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x62,
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+	0x6f, 0x74, 0x6f, 0x1a, 0x1e, 0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2f, 0x70, 0x72, 0x6f, 0x74,
+	0x6f, 0x62, 0x75, 0x66, 0x2f, 0x64, 0x75, 0x72, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x2e, 0x70, 0x72,
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+}
+
+var (
+	file_textpb2_test_proto_rawDescOnce sync.Once
+	file_textpb2_test_proto_rawDescData = file_textpb2_test_proto_rawDesc
+)
+
+func file_textpb2_test_proto_rawDescGZIP() []byte {
+	file_textpb2_test_proto_rawDescOnce.Do(func() {
+		file_textpb2_test_proto_rawDescData = protoimpl.X.CompressGZIP(file_textpb2_test_proto_rawDescData)
+	})
+	return file_textpb2_test_proto_rawDescData
+}
+
+var file_textpb2_test_proto_enumTypes = make([]protoimpl.EnumInfo, 2)
+var file_textpb2_test_proto_msgTypes = make([]protoimpl.MessageInfo, 20)
+var file_textpb2_test_proto_goTypes = []interface{}{
+	(Enum)(0),                             // 0: pb2.Enum
+	(Enums_NestedEnum)(0),                 // 1: pb2.Enums.NestedEnum
+	(*Scalars)(nil),                       // 2: pb2.Scalars
+	(*Enums)(nil),                         // 3: pb2.Enums
+	(*Repeats)(nil),                       // 4: pb2.Repeats
+	(*Nested)(nil),                        // 5: pb2.Nested
+	(*Nests)(nil),                         // 6: pb2.Nests
+	(*Requireds)(nil),                     // 7: pb2.Requireds
+	(*PartialRequired)(nil),               // 8: pb2.PartialRequired
+	(*NestedWithRequired)(nil),            // 9: pb2.NestedWithRequired
+	(*IndirectRequired)(nil),              // 10: pb2.IndirectRequired
+	(*Extensions)(nil),                    // 11: pb2.Extensions
+	(*ExtensionsContainer)(nil),           // 12: pb2.ExtensionsContainer
+	(*MessageSet)(nil),                    // 13: pb2.MessageSet
+	(*MessageSetExtension)(nil),           // 14: pb2.MessageSetExtension
+	(*FakeMessageSet)(nil),                // 15: pb2.FakeMessageSet
+	(*FakeMessageSetExtension)(nil),       // 16: pb2.FakeMessageSetExtension
+	(*KnownTypes)(nil),                    // 17: pb2.KnownTypes
+	(*Nests_OptGroup)(nil),                // 18: pb2.Nests.OptGroup
+	(*Nests_RptGroup)(nil),                // 19: pb2.Nests.RptGroup
+	(*Nests_OptGroup_OptNestedGroup)(nil), // 20: pb2.Nests.OptGroup.OptNestedGroup
+	nil,                                   // 21: pb2.IndirectRequired.StrToNestedEntry
+	(*wrapperspb.BoolValue)(nil),          // 22: google.protobuf.BoolValue
+	(*wrapperspb.Int32Value)(nil),         // 23: google.protobuf.Int32Value
+	(*wrapperspb.Int64Value)(nil),         // 24: google.protobuf.Int64Value
+	(*wrapperspb.UInt32Value)(nil),        // 25: google.protobuf.UInt32Value
+	(*wrapperspb.UInt64Value)(nil),        // 26: google.protobuf.UInt64Value
+	(*wrapperspb.FloatValue)(nil),         // 27: google.protobuf.FloatValue
+	(*wrapperspb.DoubleValue)(nil),        // 28: google.protobuf.DoubleValue
+	(*wrapperspb.StringValue)(nil),        // 29: google.protobuf.StringValue
+	(*wrapperspb.BytesValue)(nil),         // 30: google.protobuf.BytesValue
+	(*durationpb.Duration)(nil),           // 31: google.protobuf.Duration
+	(*timestamppb.Timestamp)(nil),         // 32: google.protobuf.Timestamp
+	(*structpb.Struct)(nil),               // 33: google.protobuf.Struct
+	(*structpb.ListValue)(nil),            // 34: google.protobuf.ListValue
+	(*structpb.Value)(nil),                // 35: google.protobuf.Value
+	(structpb.NullValue)(0),               // 36: google.protobuf.NullValue
+	(*emptypb.Empty)(nil),                 // 37: google.protobuf.Empty
+	(*anypb.Any)(nil),                     // 38: google.protobuf.Any
+	(*fieldmaskpb.FieldMask)(nil),         // 39: google.protobuf.FieldMask
+}
+var file_textpb2_test_proto_depIdxs = []int32{
+	0,  // 0: pb2.Enums.opt_enum:type_name -> pb2.Enum
+	0,  // 1: pb2.Enums.rpt_enum:type_name -> pb2.Enum
+	1,  // 2: pb2.Enums.opt_nested_enum:type_name -> pb2.Enums.NestedEnum
+	1,  // 3: pb2.Enums.rpt_nested_enum:type_name -> pb2.Enums.NestedEnum
+	5,  // 4: pb2.Nested.opt_nested:type_name -> pb2.Nested
+	5,  // 5: pb2.Nests.opt_nested:type_name -> pb2.Nested
+	18, // 6: pb2.Nests.optgroup:type_name -> pb2.Nests.OptGroup
+	5,  // 7: pb2.Nests.rpt_nested:type_name -> pb2.Nested
+	19, // 8: pb2.Nests.rptgroup:type_name -> pb2.Nests.RptGroup
+	0,  // 9: pb2.Requireds.req_enum:type_name -> pb2.Enum
+	5,  // 10: pb2.Requireds.req_nested:type_name -> pb2.Nested
+	9,  // 11: pb2.IndirectRequired.opt_nested:type_name -> pb2.NestedWithRequired
+	9,  // 12: pb2.IndirectRequired.rpt_nested:type_name -> pb2.NestedWithRequired
+	21, // 13: pb2.IndirectRequired.str_to_nested:type_name -> pb2.IndirectRequired.StrToNestedEntry
+	9,  // 14: pb2.IndirectRequired.oneof_nested:type_name -> pb2.NestedWithRequired
+	22, // 15: pb2.KnownTypes.opt_bool:type_name -> google.protobuf.BoolValue
+	23, // 16: pb2.KnownTypes.opt_int32:type_name -> google.protobuf.Int32Value
+	24, // 17: pb2.KnownTypes.opt_int64:type_name -> google.protobuf.Int64Value
+	25, // 18: pb2.KnownTypes.opt_uint32:type_name -> google.protobuf.UInt32Value
+	26, // 19: pb2.KnownTypes.opt_uint64:type_name -> google.protobuf.UInt64Value
+	27, // 20: pb2.KnownTypes.opt_float:type_name -> google.protobuf.FloatValue
+	28, // 21: pb2.KnownTypes.opt_double:type_name -> google.protobuf.DoubleValue
+	29, // 22: pb2.KnownTypes.opt_string:type_name -> google.protobuf.StringValue
+	30, // 23: pb2.KnownTypes.opt_bytes:type_name -> google.protobuf.BytesValue
+	31, // 24: pb2.KnownTypes.opt_duration:type_name -> google.protobuf.Duration
+	32, // 25: pb2.KnownTypes.opt_timestamp:type_name -> google.protobuf.Timestamp
+	33, // 26: pb2.KnownTypes.opt_struct:type_name -> google.protobuf.Struct
+	34, // 27: pb2.KnownTypes.opt_list:type_name -> google.protobuf.ListValue
+	35, // 28: pb2.KnownTypes.opt_value:type_name -> google.protobuf.Value
+	36, // 29: pb2.KnownTypes.opt_null:type_name -> google.protobuf.NullValue
+	37, // 30: pb2.KnownTypes.opt_empty:type_name -> google.protobuf.Empty
+	38, // 31: pb2.KnownTypes.opt_any:type_name -> google.protobuf.Any
+	39, // 32: pb2.KnownTypes.opt_fieldmask:type_name -> google.protobuf.FieldMask
+	5,  // 33: pb2.Nests.OptGroup.opt_nested:type_name -> pb2.Nested
+	20, // 34: pb2.Nests.OptGroup.optnestedgroup:type_name -> pb2.Nests.OptGroup.OptNestedGroup
+	9,  // 35: pb2.IndirectRequired.StrToNestedEntry.value:type_name -> pb2.NestedWithRequired
+	11, // 36: pb2.opt_ext_bool:extendee -> pb2.Extensions
+	11, // 37: pb2.opt_ext_string:extendee -> pb2.Extensions
+	11, // 38: pb2.opt_ext_enum:extendee -> pb2.Extensions
+	11, // 39: pb2.opt_ext_nested:extendee -> pb2.Extensions
+	11, // 40: pb2.opt_ext_partial:extendee -> pb2.Extensions
+	11, // 41: pb2.rpt_ext_fixed32:extendee -> pb2.Extensions
+	11, // 42: pb2.rpt_ext_enum:extendee -> pb2.Extensions
+	11, // 43: pb2.rpt_ext_nested:extendee -> pb2.Extensions
+	13, // 44: pb2.message_set_extension:extendee -> pb2.MessageSet
+	11, // 45: pb2.ExtensionsContainer.opt_ext_bool:extendee -> pb2.Extensions
+	11, // 46: pb2.ExtensionsContainer.opt_ext_string:extendee -> pb2.Extensions
+	11, // 47: pb2.ExtensionsContainer.opt_ext_enum:extendee -> pb2.Extensions
+	11, // 48: pb2.ExtensionsContainer.opt_ext_nested:extendee -> pb2.Extensions
+	11, // 49: pb2.ExtensionsContainer.opt_ext_partial:extendee -> pb2.Extensions
+	11, // 50: pb2.ExtensionsContainer.rpt_ext_string:extendee -> pb2.Extensions
+	11, // 51: pb2.ExtensionsContainer.rpt_ext_enum:extendee -> pb2.Extensions
+	11, // 52: pb2.ExtensionsContainer.rpt_ext_nested:extendee -> pb2.Extensions
+	13, // 53: pb2.MessageSetExtension.message_set_extension:extendee -> pb2.MessageSet
+	13, // 54: pb2.MessageSetExtension.not_message_set_extension:extendee -> pb2.MessageSet
+	13, // 55: pb2.MessageSetExtension.ext_nested:extendee -> pb2.MessageSet
+	15, // 56: pb2.FakeMessageSetExtension.message_set_extension:extendee -> pb2.FakeMessageSet
+	0,  // 57: pb2.opt_ext_enum:type_name -> pb2.Enum
+	5,  // 58: pb2.opt_ext_nested:type_name -> pb2.Nested
+	8,  // 59: pb2.opt_ext_partial:type_name -> pb2.PartialRequired
+	0,  // 60: pb2.rpt_ext_enum:type_name -> pb2.Enum
+	5,  // 61: pb2.rpt_ext_nested:type_name -> pb2.Nested
+	16, // 62: pb2.message_set_extension:type_name -> pb2.FakeMessageSetExtension
+	0,  // 63: pb2.ExtensionsContainer.opt_ext_enum:type_name -> pb2.Enum
+	5,  // 64: pb2.ExtensionsContainer.opt_ext_nested:type_name -> pb2.Nested
+	8,  // 65: pb2.ExtensionsContainer.opt_ext_partial:type_name -> pb2.PartialRequired
+	0,  // 66: pb2.ExtensionsContainer.rpt_ext_enum:type_name -> pb2.Enum
+	5,  // 67: pb2.ExtensionsContainer.rpt_ext_nested:type_name -> pb2.Nested
+	14, // 68: pb2.MessageSetExtension.message_set_extension:type_name -> pb2.MessageSetExtension
+	14, // 69: pb2.MessageSetExtension.not_message_set_extension:type_name -> pb2.MessageSetExtension
+	5,  // 70: pb2.MessageSetExtension.ext_nested:type_name -> pb2.Nested
+	16, // 71: pb2.FakeMessageSetExtension.message_set_extension:type_name -> pb2.FakeMessageSetExtension
+	72, // [72:72] is the sub-list for method output_type
+	72, // [72:72] is the sub-list for method input_type
+	57, // [57:72] is the sub-list for extension type_name
+	36, // [36:57] is the sub-list for extension extendee
+	0,  // [0:36] is the sub-list for field type_name
+}
+
+func init() { file_textpb2_test_proto_init() }
+func file_textpb2_test_proto_init() {
+	if File_textpb2_test_proto != nil {
+		return
+	}
+	if !protoimpl.UnsafeEnabled {
+		file_textpb2_test_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*Scalars); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_textpb2_test_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*Enums); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_textpb2_test_proto_msgTypes[2].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*Repeats); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_textpb2_test_proto_msgTypes[3].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*Nested); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_textpb2_test_proto_msgTypes[4].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*Nests); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_textpb2_test_proto_msgTypes[5].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*Requireds); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_textpb2_test_proto_msgTypes[6].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*PartialRequired); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_textpb2_test_proto_msgTypes[7].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*NestedWithRequired); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_textpb2_test_proto_msgTypes[8].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*IndirectRequired); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_textpb2_test_proto_msgTypes[9].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*Extensions); 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_textpb2_test_proto_msgTypes[10].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*ExtensionsContainer); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_textpb2_test_proto_msgTypes[11].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*MessageSet); 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_textpb2_test_proto_msgTypes[12].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*MessageSetExtension); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_textpb2_test_proto_msgTypes[13].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*FakeMessageSet); 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_textpb2_test_proto_msgTypes[14].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*FakeMessageSetExtension); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_textpb2_test_proto_msgTypes[15].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*KnownTypes); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_textpb2_test_proto_msgTypes[16].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*Nests_OptGroup); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_textpb2_test_proto_msgTypes[17].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*Nests_RptGroup); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_textpb2_test_proto_msgTypes[18].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*Nests_OptGroup_OptNestedGroup); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+	}
+	file_textpb2_test_proto_msgTypes[8].OneofWrappers = []interface{}{
+		(*IndirectRequired_OneofNested)(nil),
+	}
+	type x struct{}
+	out := protoimpl.TypeBuilder{
+		File: protoimpl.DescBuilder{
+			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
+			RawDescriptor: file_textpb2_test_proto_rawDesc,
+			NumEnums:      2,
+			NumMessages:   20,
+			NumExtensions: 21,
+			NumServices:   0,
+		},
+		GoTypes:           file_textpb2_test_proto_goTypes,
+		DependencyIndexes: file_textpb2_test_proto_depIdxs,
+		EnumInfos:         file_textpb2_test_proto_enumTypes,
+		MessageInfos:      file_textpb2_test_proto_msgTypes,
+		ExtensionInfos:    file_textpb2_test_proto_extTypes,
+	}.Build()
+	File_textpb2_test_proto = out.File
+	file_textpb2_test_proto_rawDesc = nil
+	file_textpb2_test_proto_goTypes = nil
+	file_textpb2_test_proto_depIdxs = nil
+}
diff --git a/internal/testprotos/textpb2/test.proto b/internal/testprotos/textpb2/test.proto
new file mode 100644
index 0000000..b97cd53
--- /dev/null
+++ b/internal/testprotos/textpb2/test.proto
@@ -0,0 +1,228 @@
+// 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.
+
+// Test Protobuf definitions with proto2 syntax.
+syntax = "proto2";
+
+package pb2;
+option go_package = "google.golang.org/protobuf/internal/testprotos/textpb2";
+
+import "google/protobuf/any.proto";
+import "google/protobuf/empty.proto";
+import "google/protobuf/field_mask.proto";
+import "google/protobuf/duration.proto";
+import "google/protobuf/struct.proto";
+import "google/protobuf/timestamp.proto";
+import "google/protobuf/wrappers.proto";
+
+// Scalars contains optional scalar fields.
+message Scalars {
+  optional bool opt_bool = 1;
+  optional int32 opt_int32 = 2;
+  optional int64 opt_int64 = 3;
+  optional uint32 opt_uint32 = 4;
+  optional uint64 opt_uint64 = 5;
+  optional sint32 opt_sint32 = 6;
+  optional sint64 opt_sint64 = 7;
+  optional fixed32 opt_fixed32 = 8;
+  optional fixed64 opt_fixed64 = 9;
+  optional sfixed32 opt_sfixed32 = 10;
+  optional sfixed64 opt_sfixed64 = 11;
+
+  // Textproto marshal outputs fields in the same order as this proto
+  // definition regardless of field number. Following fields are intended to
+  // test that assumption.
+
+  optional float opt_float = 20;
+  optional double opt_double = 21;
+
+  optional bytes opt_bytes = 14;
+  optional string opt_string = 13;
+}
+
+enum Enum {
+  ONE = 1;
+  TWO = 2;
+  TEN = 10;
+}
+
+// Message contains enum fields.
+message Enums {
+  optional Enum opt_enum = 1;
+  repeated Enum rpt_enum = 2;
+
+  enum NestedEnum {
+	UNO = 1;
+	DOS = 2;
+	DIEZ = 10;
+  }
+  optional NestedEnum opt_nested_enum = 3;
+  repeated NestedEnum rpt_nested_enum = 4;
+}
+
+// Message contains repeated fields.
+message Repeats {
+  repeated bool rpt_bool = 1;
+  repeated int32 rpt_int32 = 2;
+  repeated int64 rpt_int64 = 3;
+  repeated uint32 rpt_uint32 = 4;
+  repeated uint64 rpt_uint64 = 5;
+  repeated float rpt_float = 6;
+  repeated double rpt_double = 7;
+  repeated string rpt_string = 8;
+  repeated bytes rpt_bytes = 9;
+}
+
+// Message type used as submessage.
+message Nested {
+  optional string opt_string = 1;
+  optional Nested opt_nested = 2;
+}
+
+// Message contains message and group fields.
+message Nests {
+  optional Nested opt_nested = 1;
+  optional group OptGroup = 2 {
+    optional string opt_string = 1;
+    optional Nested opt_nested = 2;
+
+    optional group OptNestedGroup = 3 {
+      optional fixed32 opt_fixed32 = 1;
+    }
+  }
+
+  repeated Nested rpt_nested = 4;
+  repeated group RptGroup = 5 {
+    repeated string rpt_string = 1;
+  }
+
+  reserved "reserved_field";
+}
+
+// Message contains required fields.
+message Requireds {
+  required bool req_bool = 1;
+  required sfixed64 req_sfixed64 = 2;
+  required double req_double = 3;
+  required string req_string = 4;
+  required Enum req_enum = 5;
+  required Nested req_nested = 6;
+}
+
+// Message contains both required and optional fields.
+message PartialRequired {
+  required string req_string = 1;
+  optional string opt_string = 2;
+}
+
+// Following messages are for testing required field nested in optional, repeated and map fields.
+
+message NestedWithRequired {
+  required string req_string = 1;
+}
+
+message IndirectRequired {
+  optional NestedWithRequired opt_nested = 1;
+  repeated NestedWithRequired rpt_nested = 2;
+  map<string, NestedWithRequired> str_to_nested = 3;
+
+  oneof union {
+    NestedWithRequired oneof_nested = 4;
+  }
+}
+
+// Following messages are for testing extensions.
+
+message Extensions {
+  optional string opt_string = 1;
+  extensions 20 to 100;
+  optional bool opt_bool = 101;
+  optional int32 opt_int32 = 2;
+}
+
+extend Extensions {
+  optional bool opt_ext_bool = 21;
+  optional string opt_ext_string = 22;
+  optional Enum opt_ext_enum = 23;
+  optional Nested opt_ext_nested = 24;
+  optional PartialRequired opt_ext_partial = 25;
+
+  repeated fixed32 rpt_ext_fixed32 = 31;
+  repeated Enum rpt_ext_enum = 32;
+  repeated Nested rpt_ext_nested = 33;
+}
+
+message ExtensionsContainer {
+  extend Extensions {
+    optional bool opt_ext_bool = 51;
+    optional string opt_ext_string = 52;
+    optional Enum opt_ext_enum = 53;
+    optional Nested opt_ext_nested = 54;
+    optional PartialRequired opt_ext_partial = 55;
+
+    repeated string rpt_ext_string = 61;
+    repeated Enum rpt_ext_enum = 62;
+    repeated Nested rpt_ext_nested = 63;
+  }
+}
+
+// Following messages are for testing MessageSet.
+
+message MessageSet {
+  option message_set_wire_format = true;
+
+  extensions 4 to max;
+}
+
+message MessageSetExtension {
+  optional string opt_string = 1;
+
+  extend MessageSet {
+    optional MessageSetExtension message_set_extension = 10;
+    optional MessageSetExtension not_message_set_extension = 20;
+    optional Nested ext_nested = 30;
+  }
+}
+
+message FakeMessageSet {
+  extensions 4 to max;
+}
+
+message FakeMessageSetExtension {
+  optional string opt_string = 1;
+
+  extend FakeMessageSet {
+    optional FakeMessageSetExtension message_set_extension = 10;
+  }
+}
+
+extend MessageSet {
+  optional FakeMessageSetExtension message_set_extension = 50;
+}
+
+// Message contains well-known type fields.
+message KnownTypes {
+  optional google.protobuf.BoolValue opt_bool = 1;
+  optional google.protobuf.Int32Value opt_int32 = 2;
+  optional google.protobuf.Int64Value opt_int64 = 3;
+  optional google.protobuf.UInt32Value opt_uint32 = 4;
+  optional google.protobuf.UInt64Value opt_uint64 = 5;
+  optional google.protobuf.FloatValue opt_float = 6;
+  optional google.protobuf.DoubleValue opt_double = 7;
+  optional google.protobuf.StringValue opt_string = 8;
+  optional google.protobuf.BytesValue opt_bytes = 9;
+
+  optional google.protobuf.Duration opt_duration = 20;
+  optional google.protobuf.Timestamp opt_timestamp = 21;
+
+  optional google.protobuf.Struct opt_struct = 25;
+  optional google.protobuf.ListValue opt_list = 26;
+  optional google.protobuf.Value opt_value = 27;
+  optional google.protobuf.NullValue opt_null = 28;
+
+  optional google.protobuf.Empty opt_empty = 30;
+  optional google.protobuf.Any opt_any = 32;
+
+  optional google.protobuf.FieldMask opt_fieldmask = 40;
+}
diff --git a/internal/testprotos/textpb3/test.pb.go b/internal/testprotos/textpb3/test.pb.go
new file mode 100644
index 0000000..172237a
--- /dev/null
+++ b/internal/testprotos/textpb3/test.pb.go
@@ -0,0 +1,946 @@
+// Copyright 2018 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.
+
+// Test Protobuf definitions with proto3 syntax.
+
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// source: textpb3/test.proto
+
+package textpb3
+
+import (
+	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
+	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
+	reflect "reflect"
+	sync "sync"
+)
+
+type Enum int32
+
+const (
+	Enum_ZERO Enum = 0
+	Enum_ONE  Enum = 1
+	Enum_TWO  Enum = 2
+	Enum_TEN  Enum = 10
+)
+
+// Enum value maps for Enum.
+var (
+	Enum_name = map[int32]string{
+		0:  "ZERO",
+		1:  "ONE",
+		2:  "TWO",
+		10: "TEN",
+	}
+	Enum_value = map[string]int32{
+		"ZERO": 0,
+		"ONE":  1,
+		"TWO":  2,
+		"TEN":  10,
+	}
+)
+
+func (x Enum) Enum() *Enum {
+	p := new(Enum)
+	*p = x
+	return p
+}
+
+func (x Enum) String() string {
+	return protoimpl.X.EnumStringOf(x.Descriptor(), protoreflect.EnumNumber(x))
+}
+
+func (Enum) Descriptor() protoreflect.EnumDescriptor {
+	return file_textpb3_test_proto_enumTypes[0].Descriptor()
+}
+
+func (Enum) Type() protoreflect.EnumType {
+	return &file_textpb3_test_proto_enumTypes[0]
+}
+
+func (x Enum) Number() protoreflect.EnumNumber {
+	return protoreflect.EnumNumber(x)
+}
+
+// Deprecated: Use Enum.Descriptor instead.
+func (Enum) EnumDescriptor() ([]byte, []int) {
+	return file_textpb3_test_proto_rawDescGZIP(), []int{0}
+}
+
+type Enums_NestedEnum int32
+
+const (
+	Enums_CERO Enums_NestedEnum = 0
+	Enums_UNO  Enums_NestedEnum = 1
+	Enums_DOS  Enums_NestedEnum = 2
+	Enums_DIEZ Enums_NestedEnum = 10
+)
+
+// Enum value maps for Enums_NestedEnum.
+var (
+	Enums_NestedEnum_name = map[int32]string{
+		0:  "CERO",
+		1:  "UNO",
+		2:  "DOS",
+		10: "DIEZ",
+	}
+	Enums_NestedEnum_value = map[string]int32{
+		"CERO": 0,
+		"UNO":  1,
+		"DOS":  2,
+		"DIEZ": 10,
+	}
+)
+
+func (x Enums_NestedEnum) Enum() *Enums_NestedEnum {
+	p := new(Enums_NestedEnum)
+	*p = x
+	return p
+}
+
+func (x Enums_NestedEnum) String() string {
+	return protoimpl.X.EnumStringOf(x.Descriptor(), protoreflect.EnumNumber(x))
+}
+
+func (Enums_NestedEnum) Descriptor() protoreflect.EnumDescriptor {
+	return file_textpb3_test_proto_enumTypes[1].Descriptor()
+}
+
+func (Enums_NestedEnum) Type() protoreflect.EnumType {
+	return &file_textpb3_test_proto_enumTypes[1]
+}
+
+func (x Enums_NestedEnum) Number() protoreflect.EnumNumber {
+	return protoreflect.EnumNumber(x)
+}
+
+// Deprecated: Use Enums_NestedEnum.Descriptor instead.
+func (Enums_NestedEnum) EnumDescriptor() ([]byte, []int) {
+	return file_textpb3_test_proto_rawDescGZIP(), []int{1, 0}
+}
+
+// Scalars contains scalar field types.
+type Scalars struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	SBool     bool    `protobuf:"varint,1,opt,name=s_bool,json=sBool,proto3" json:"s_bool,omitempty"`
+	SInt32    int32   `protobuf:"varint,2,opt,name=s_int32,json=sInt32,proto3" json:"s_int32,omitempty"`
+	SInt64    int64   `protobuf:"varint,3,opt,name=s_int64,json=sInt64,proto3" json:"s_int64,omitempty"`
+	SUint32   uint32  `protobuf:"varint,4,opt,name=s_uint32,json=sUint32,proto3" json:"s_uint32,omitempty"`
+	SUint64   uint64  `protobuf:"varint,5,opt,name=s_uint64,json=sUint64,proto3" json:"s_uint64,omitempty"`
+	SSint32   int32   `protobuf:"zigzag32,6,opt,name=s_sint32,json=sSint32,proto3" json:"s_sint32,omitempty"`
+	SSint64   int64   `protobuf:"zigzag64,7,opt,name=s_sint64,json=sSint64,proto3" json:"s_sint64,omitempty"`
+	SFixed32  uint32  `protobuf:"fixed32,8,opt,name=s_fixed32,json=sFixed32,proto3" json:"s_fixed32,omitempty"`
+	SFixed64  uint64  `protobuf:"fixed64,9,opt,name=s_fixed64,json=sFixed64,proto3" json:"s_fixed64,omitempty"`
+	SSfixed32 int32   `protobuf:"fixed32,10,opt,name=s_sfixed32,json=sSfixed32,proto3" json:"s_sfixed32,omitempty"`
+	SSfixed64 int64   `protobuf:"fixed64,11,opt,name=s_sfixed64,json=sSfixed64,proto3" json:"s_sfixed64,omitempty"`
+	SFloat    float32 `protobuf:"fixed32,20,opt,name=s_float,json=sFloat,proto3" json:"s_float,omitempty"`
+	SDouble   float64 `protobuf:"fixed64,21,opt,name=s_double,json=sDouble,proto3" json:"s_double,omitempty"`
+	SBytes    []byte  `protobuf:"bytes,14,opt,name=s_bytes,json=sBytes,proto3" json:"s_bytes,omitempty"`
+	SString   string  `protobuf:"bytes,13,opt,name=s_string,json=sString,proto3" json:"s_string,omitempty"`
+}
+
+func (x *Scalars) Reset() {
+	*x = Scalars{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_textpb3_test_proto_msgTypes[0]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *Scalars) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*Scalars) ProtoMessage() {}
+
+func (x *Scalars) ProtoReflect() protoreflect.Message {
+	mi := &file_textpb3_test_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 Scalars.ProtoReflect.Descriptor instead.
+func (*Scalars) Descriptor() ([]byte, []int) {
+	return file_textpb3_test_proto_rawDescGZIP(), []int{0}
+}
+
+func (x *Scalars) GetSBool() bool {
+	if x != nil {
+		return x.SBool
+	}
+	return false
+}
+
+func (x *Scalars) GetSInt32() int32 {
+	if x != nil {
+		return x.SInt32
+	}
+	return 0
+}
+
+func (x *Scalars) GetSInt64() int64 {
+	if x != nil {
+		return x.SInt64
+	}
+	return 0
+}
+
+func (x *Scalars) GetSUint32() uint32 {
+	if x != nil {
+		return x.SUint32
+	}
+	return 0
+}
+
+func (x *Scalars) GetSUint64() uint64 {
+	if x != nil {
+		return x.SUint64
+	}
+	return 0
+}
+
+func (x *Scalars) GetSSint32() int32 {
+	if x != nil {
+		return x.SSint32
+	}
+	return 0
+}
+
+func (x *Scalars) GetSSint64() int64 {
+	if x != nil {
+		return x.SSint64
+	}
+	return 0
+}
+
+func (x *Scalars) GetSFixed32() uint32 {
+	if x != nil {
+		return x.SFixed32
+	}
+	return 0
+}
+
+func (x *Scalars) GetSFixed64() uint64 {
+	if x != nil {
+		return x.SFixed64
+	}
+	return 0
+}
+
+func (x *Scalars) GetSSfixed32() int32 {
+	if x != nil {
+		return x.SSfixed32
+	}
+	return 0
+}
+
+func (x *Scalars) GetSSfixed64() int64 {
+	if x != nil {
+		return x.SSfixed64
+	}
+	return 0
+}
+
+func (x *Scalars) GetSFloat() float32 {
+	if x != nil {
+		return x.SFloat
+	}
+	return 0
+}
+
+func (x *Scalars) GetSDouble() float64 {
+	if x != nil {
+		return x.SDouble
+	}
+	return 0
+}
+
+func (x *Scalars) GetSBytes() []byte {
+	if x != nil {
+		return x.SBytes
+	}
+	return nil
+}
+
+func (x *Scalars) GetSString() string {
+	if x != nil {
+		return x.SString
+	}
+	return ""
+}
+
+// Message contains enum fields.
+type Enums struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	SEnum       Enum             `protobuf:"varint,1,opt,name=s_enum,json=sEnum,proto3,enum=pb3.Enum" json:"s_enum,omitempty"`
+	SNestedEnum Enums_NestedEnum `protobuf:"varint,3,opt,name=s_nested_enum,json=sNestedEnum,proto3,enum=pb3.Enums_NestedEnum" json:"s_nested_enum,omitempty"`
+}
+
+func (x *Enums) Reset() {
+	*x = Enums{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_textpb3_test_proto_msgTypes[1]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *Enums) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*Enums) ProtoMessage() {}
+
+func (x *Enums) ProtoReflect() protoreflect.Message {
+	mi := &file_textpb3_test_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 Enums.ProtoReflect.Descriptor instead.
+func (*Enums) Descriptor() ([]byte, []int) {
+	return file_textpb3_test_proto_rawDescGZIP(), []int{1}
+}
+
+func (x *Enums) GetSEnum() Enum {
+	if x != nil {
+		return x.SEnum
+	}
+	return Enum_ZERO
+}
+
+func (x *Enums) GetSNestedEnum() Enums_NestedEnum {
+	if x != nil {
+		return x.SNestedEnum
+	}
+	return Enums_CERO
+}
+
+// Message contains nested message field.
+type Nests struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	SNested *Nested `protobuf:"bytes,2,opt,name=s_nested,json=sNested,proto3" json:"s_nested,omitempty"`
+}
+
+func (x *Nests) Reset() {
+	*x = Nests{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_textpb3_test_proto_msgTypes[2]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *Nests) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*Nests) ProtoMessage() {}
+
+func (x *Nests) ProtoReflect() protoreflect.Message {
+	mi := &file_textpb3_test_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 Nests.ProtoReflect.Descriptor instead.
+func (*Nests) Descriptor() ([]byte, []int) {
+	return file_textpb3_test_proto_rawDescGZIP(), []int{2}
+}
+
+func (x *Nests) GetSNested() *Nested {
+	if x != nil {
+		return x.SNested
+	}
+	return nil
+}
+
+// Message type used as submessage.
+type Nested struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	SString string  `protobuf:"bytes,1,opt,name=s_string,json=sString,proto3" json:"s_string,omitempty"`
+	SNested *Nested `protobuf:"bytes,2,opt,name=s_nested,json=sNested,proto3" json:"s_nested,omitempty"`
+}
+
+func (x *Nested) Reset() {
+	*x = Nested{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_textpb3_test_proto_msgTypes[3]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *Nested) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*Nested) ProtoMessage() {}
+
+func (x *Nested) ProtoReflect() protoreflect.Message {
+	mi := &file_textpb3_test_proto_msgTypes[3]
+	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 Nested.ProtoReflect.Descriptor instead.
+func (*Nested) Descriptor() ([]byte, []int) {
+	return file_textpb3_test_proto_rawDescGZIP(), []int{3}
+}
+
+func (x *Nested) GetSString() string {
+	if x != nil {
+		return x.SString
+	}
+	return ""
+}
+
+func (x *Nested) GetSNested() *Nested {
+	if x != nil {
+		return x.SNested
+	}
+	return nil
+}
+
+// Message contains oneof field.
+type Oneofs struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	// Types that are assignable to Union:
+	//	*Oneofs_OneofEnum
+	//	*Oneofs_OneofString
+	//	*Oneofs_OneofNested
+	Union isOneofs_Union `protobuf_oneof:"union"`
+}
+
+func (x *Oneofs) Reset() {
+	*x = Oneofs{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_textpb3_test_proto_msgTypes[4]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *Oneofs) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*Oneofs) ProtoMessage() {}
+
+func (x *Oneofs) ProtoReflect() protoreflect.Message {
+	mi := &file_textpb3_test_proto_msgTypes[4]
+	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 Oneofs.ProtoReflect.Descriptor instead.
+func (*Oneofs) Descriptor() ([]byte, []int) {
+	return file_textpb3_test_proto_rawDescGZIP(), []int{4}
+}
+
+func (m *Oneofs) GetUnion() isOneofs_Union {
+	if m != nil {
+		return m.Union
+	}
+	return nil
+}
+
+func (x *Oneofs) GetOneofEnum() Enum {
+	if x, ok := x.GetUnion().(*Oneofs_OneofEnum); ok {
+		return x.OneofEnum
+	}
+	return Enum_ZERO
+}
+
+func (x *Oneofs) GetOneofString() string {
+	if x, ok := x.GetUnion().(*Oneofs_OneofString); ok {
+		return x.OneofString
+	}
+	return ""
+}
+
+func (x *Oneofs) GetOneofNested() *Nested {
+	if x, ok := x.GetUnion().(*Oneofs_OneofNested); ok {
+		return x.OneofNested
+	}
+	return nil
+}
+
+type isOneofs_Union interface {
+	isOneofs_Union()
+}
+
+type Oneofs_OneofEnum struct {
+	OneofEnum Enum `protobuf:"varint,1,opt,name=oneof_enum,json=oneofEnum,proto3,enum=pb3.Enum,oneof"`
+}
+
+type Oneofs_OneofString struct {
+	OneofString string `protobuf:"bytes,2,opt,name=oneof_string,json=oneofString,proto3,oneof"`
+}
+
+type Oneofs_OneofNested struct {
+	OneofNested *Nested `protobuf:"bytes,3,opt,name=oneof_nested,json=oneofNested,proto3,oneof"`
+}
+
+func (*Oneofs_OneofEnum) isOneofs_Union() {}
+
+func (*Oneofs_OneofString) isOneofs_Union() {}
+
+func (*Oneofs_OneofNested) isOneofs_Union() {}
+
+// Message contains map fields.
+type Maps struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Int32ToStr   map[int32]string   `protobuf:"bytes,1,rep,name=int32_to_str,json=int32ToStr,proto3" json:"int32_to_str,omitempty" protobuf_key:"varint,1,opt,name=key,proto3" protobuf_val:"bytes,2,opt,name=value,proto3"`
+	BoolToUint32 map[bool]uint32    `protobuf:"bytes,2,rep,name=bool_to_uint32,json=boolToUint32,proto3" json:"bool_to_uint32,omitempty" protobuf_key:"varint,1,opt,name=key,proto3" protobuf_val:"varint,2,opt,name=value,proto3"`
+	Uint64ToEnum map[uint64]Enum    `protobuf:"bytes,3,rep,name=uint64_to_enum,json=uint64ToEnum,proto3" json:"uint64_to_enum,omitempty" protobuf_key:"varint,1,opt,name=key,proto3" protobuf_val:"varint,2,opt,name=value,proto3,enum=pb3.Enum"`
+	StrToNested  map[string]*Nested `protobuf:"bytes,4,rep,name=str_to_nested,json=strToNested,proto3" json:"str_to_nested,omitempty" protobuf_key:"bytes,1,opt,name=key,proto3" protobuf_val:"bytes,2,opt,name=value,proto3"`
+	StrToOneofs  map[string]*Oneofs `protobuf:"bytes,5,rep,name=str_to_oneofs,json=strToOneofs,proto3" json:"str_to_oneofs,omitempty" protobuf_key:"bytes,1,opt,name=key,proto3" protobuf_val:"bytes,2,opt,name=value,proto3"`
+}
+
+func (x *Maps) Reset() {
+	*x = Maps{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_textpb3_test_proto_msgTypes[5]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *Maps) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*Maps) ProtoMessage() {}
+
+func (x *Maps) ProtoReflect() protoreflect.Message {
+	mi := &file_textpb3_test_proto_msgTypes[5]
+	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 Maps.ProtoReflect.Descriptor instead.
+func (*Maps) Descriptor() ([]byte, []int) {
+	return file_textpb3_test_proto_rawDescGZIP(), []int{5}
+}
+
+func (x *Maps) GetInt32ToStr() map[int32]string {
+	if x != nil {
+		return x.Int32ToStr
+	}
+	return nil
+}
+
+func (x *Maps) GetBoolToUint32() map[bool]uint32 {
+	if x != nil {
+		return x.BoolToUint32
+	}
+	return nil
+}
+
+func (x *Maps) GetUint64ToEnum() map[uint64]Enum {
+	if x != nil {
+		return x.Uint64ToEnum
+	}
+	return nil
+}
+
+func (x *Maps) GetStrToNested() map[string]*Nested {
+	if x != nil {
+		return x.StrToNested
+	}
+	return nil
+}
+
+func (x *Maps) GetStrToOneofs() map[string]*Oneofs {
+	if x != nil {
+		return x.StrToOneofs
+	}
+	return nil
+}
+
+// Message for testing json_name option.
+type JSONNames struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	SString string `protobuf:"bytes,1,opt,name=s_string,json=foo_bar,proto3" json:"s_string,omitempty"`
+}
+
+func (x *JSONNames) Reset() {
+	*x = JSONNames{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_textpb3_test_proto_msgTypes[6]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *JSONNames) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*JSONNames) ProtoMessage() {}
+
+func (x *JSONNames) ProtoReflect() protoreflect.Message {
+	mi := &file_textpb3_test_proto_msgTypes[6]
+	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 JSONNames.ProtoReflect.Descriptor instead.
+func (*JSONNames) Descriptor() ([]byte, []int) {
+	return file_textpb3_test_proto_rawDescGZIP(), []int{6}
+}
+
+func (x *JSONNames) GetSString() string {
+	if x != nil {
+		return x.SString
+	}
+	return ""
+}
+
+var File_textpb3_test_proto protoreflect.FileDescriptor
+
+var file_textpb3_test_proto_rawDesc = []byte{
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+	0x74, 0x6f, 0x73, 0x2f, 0x74, 0x65, 0x78, 0x74, 0x70, 0x62, 0x33, 0x62, 0x06, 0x70, 0x72, 0x6f,
+	0x74, 0x6f, 0x33,
+}
+
+var (
+	file_textpb3_test_proto_rawDescOnce sync.Once
+	file_textpb3_test_proto_rawDescData = file_textpb3_test_proto_rawDesc
+)
+
+func file_textpb3_test_proto_rawDescGZIP() []byte {
+	file_textpb3_test_proto_rawDescOnce.Do(func() {
+		file_textpb3_test_proto_rawDescData = protoimpl.X.CompressGZIP(file_textpb3_test_proto_rawDescData)
+	})
+	return file_textpb3_test_proto_rawDescData
+}
+
+var file_textpb3_test_proto_enumTypes = make([]protoimpl.EnumInfo, 2)
+var file_textpb3_test_proto_msgTypes = make([]protoimpl.MessageInfo, 12)
+var file_textpb3_test_proto_goTypes = []interface{}{
+	(Enum)(0),             // 0: pb3.Enum
+	(Enums_NestedEnum)(0), // 1: pb3.Enums.NestedEnum
+	(*Scalars)(nil),       // 2: pb3.Scalars
+	(*Enums)(nil),         // 3: pb3.Enums
+	(*Nests)(nil),         // 4: pb3.Nests
+	(*Nested)(nil),        // 5: pb3.Nested
+	(*Oneofs)(nil),        // 6: pb3.Oneofs
+	(*Maps)(nil),          // 7: pb3.Maps
+	(*JSONNames)(nil),     // 8: pb3.JSONNames
+	nil,                   // 9: pb3.Maps.Int32ToStrEntry
+	nil,                   // 10: pb3.Maps.BoolToUint32Entry
+	nil,                   // 11: pb3.Maps.Uint64ToEnumEntry
+	nil,                   // 12: pb3.Maps.StrToNestedEntry
+	nil,                   // 13: pb3.Maps.StrToOneofsEntry
+}
+var file_textpb3_test_proto_depIdxs = []int32{
+	0,  // 0: pb3.Enums.s_enum:type_name -> pb3.Enum
+	1,  // 1: pb3.Enums.s_nested_enum:type_name -> pb3.Enums.NestedEnum
+	5,  // 2: pb3.Nests.s_nested:type_name -> pb3.Nested
+	5,  // 3: pb3.Nested.s_nested:type_name -> pb3.Nested
+	0,  // 4: pb3.Oneofs.oneof_enum:type_name -> pb3.Enum
+	5,  // 5: pb3.Oneofs.oneof_nested:type_name -> pb3.Nested
+	9,  // 6: pb3.Maps.int32_to_str:type_name -> pb3.Maps.Int32ToStrEntry
+	10, // 7: pb3.Maps.bool_to_uint32:type_name -> pb3.Maps.BoolToUint32Entry
+	11, // 8: pb3.Maps.uint64_to_enum:type_name -> pb3.Maps.Uint64ToEnumEntry
+	12, // 9: pb3.Maps.str_to_nested:type_name -> pb3.Maps.StrToNestedEntry
+	13, // 10: pb3.Maps.str_to_oneofs:type_name -> pb3.Maps.StrToOneofsEntry
+	0,  // 11: pb3.Maps.Uint64ToEnumEntry.value:type_name -> pb3.Enum
+	5,  // 12: pb3.Maps.StrToNestedEntry.value:type_name -> pb3.Nested
+	6,  // 13: pb3.Maps.StrToOneofsEntry.value:type_name -> pb3.Oneofs
+	14, // [14:14] is the sub-list for method output_type
+	14, // [14:14] is the sub-list for method input_type
+	14, // [14:14] is the sub-list for extension type_name
+	14, // [14:14] is the sub-list for extension extendee
+	0,  // [0:14] is the sub-list for field type_name
+}
+
+func init() { file_textpb3_test_proto_init() }
+func file_textpb3_test_proto_init() {
+	if File_textpb3_test_proto != nil {
+		return
+	}
+	if !protoimpl.UnsafeEnabled {
+		file_textpb3_test_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*Scalars); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_textpb3_test_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*Enums); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_textpb3_test_proto_msgTypes[2].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*Nests); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_textpb3_test_proto_msgTypes[3].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*Nested); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_textpb3_test_proto_msgTypes[4].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*Oneofs); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_textpb3_test_proto_msgTypes[5].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*Maps); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_textpb3_test_proto_msgTypes[6].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*JSONNames); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+	}
+	file_textpb3_test_proto_msgTypes[4].OneofWrappers = []interface{}{
+		(*Oneofs_OneofEnum)(nil),
+		(*Oneofs_OneofString)(nil),
+		(*Oneofs_OneofNested)(nil),
+	}
+	type x struct{}
+	out := protoimpl.TypeBuilder{
+		File: protoimpl.DescBuilder{
+			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
+			RawDescriptor: file_textpb3_test_proto_rawDesc,
+			NumEnums:      2,
+			NumMessages:   12,
+			NumExtensions: 0,
+			NumServices:   0,
+		},
+		GoTypes:           file_textpb3_test_proto_goTypes,
+		DependencyIndexes: file_textpb3_test_proto_depIdxs,
+		EnumInfos:         file_textpb3_test_proto_enumTypes,
+		MessageInfos:      file_textpb3_test_proto_msgTypes,
+	}.Build()
+	File_textpb3_test_proto = out.File
+	file_textpb3_test_proto_rawDesc = nil
+	file_textpb3_test_proto_goTypes = nil
+	file_textpb3_test_proto_depIdxs = nil
+}
diff --git a/internal/testprotos/textpb3/test.proto b/internal/testprotos/textpb3/test.proto
new file mode 100644
index 0000000..c2006bd
--- /dev/null
+++ b/internal/testprotos/textpb3/test.proto
@@ -0,0 +1,88 @@
+// Copyright 2018 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.
+
+// Test Protobuf definitions with proto3 syntax.
+syntax = "proto3";
+
+package pb3;
+option go_package = "google.golang.org/protobuf/internal/testprotos/textpb3";
+
+// Scalars contains scalar field types.
+message Scalars {
+  bool s_bool = 1;
+  int32 s_int32 = 2;
+  int64 s_int64 = 3;
+  uint32 s_uint32 = 4;
+  uint64 s_uint64 = 5;
+  sint32 s_sint32 = 6;
+  sint64 s_sint64 = 7;
+  fixed32 s_fixed32 = 8;
+  fixed64 s_fixed64 = 9;
+  sfixed32 s_sfixed32 = 10;
+  sfixed64 s_sfixed64 = 11;
+
+  // Textproto marshal outputs fields in the same order as this proto
+  // definition regardless of field number. Following fields are intended to
+  // test that assumption.
+
+  float s_float = 20;
+  double s_double = 21;
+
+  bytes s_bytes = 14;
+  string s_string = 13;
+}
+
+enum Enum {
+  ZERO = 0;
+  ONE = 1;
+  TWO = 2;
+  TEN = 10;
+}
+
+// Message contains enum fields.
+message Enums {
+  Enum s_enum = 1;
+
+  enum NestedEnum {
+  	CERO = 0;
+	UNO = 1;
+	DOS = 2;
+	DIEZ = 10;
+  }
+  NestedEnum s_nested_enum = 3;
+}
+
+// Message contains nested message field.
+message Nests {
+  Nested s_nested = 2;
+}
+
+// Message type used as submessage.
+message Nested {
+  string s_string = 1;
+  Nested s_nested = 2;
+}
+
+// Message contains oneof field.
+message Oneofs {
+  oneof union {
+    Enum oneof_enum = 1;
+    string oneof_string = 2;
+    Nested oneof_nested = 3;
+  }
+}
+
+// Message contains map fields.
+message Maps {
+  map<int32, string> int32_to_str = 1;
+  map<bool, uint32> bool_to_uint32 = 2;
+  map<uint64, Enum> uint64_to_enum = 3;
+  map<string, Nested> str_to_nested = 4;
+  map<string, Oneofs> str_to_oneofs = 5;
+}
+
+// Message for testing json_name option.
+message JSONNames {
+  string s_string = 1 [json_name = "foo_bar"];
+}