Down integrate to Github

conformance/failure_list_ruby.txt

@@ -65,3 +65,4 @@ Required.Proto3.JsonInput.IgnoreUnknownJsonNumber.ProtobufOutput
 Required.Proto3.JsonInput.IgnoreUnknownJsonObject.ProtobufOutput
 Required.Proto3.JsonInput.IgnoreUnknownJsonString.ProtobufOutput
 Required.Proto3.JsonInput.IgnoreUnknownJsonTrue.ProtobufOutput
+Required.Proto3.JsonInput.EmptyFieldMask.JsonOutput

conformance/failure_list_ruby_mac.txt

@@ -70,3 +70,4 @@ Required.Proto3.JsonInput.IgnoreUnknownJsonObject.ProtobufOutput
 Required.Proto3.JsonInput.IgnoreUnknownJsonString.ProtobufOutput
 Required.Proto3.JsonInput.IgnoreUnknownJsonTrue.ProtobufOutput
 Recommended.Proto3.JsonInput.FieldMaskInvalidCharacter
+Required.Proto3.JsonInput.EmptyFieldMask.JsonOutput

src/google/protobuf/any.pb.cc

@@ -15,14 +15,13 @@
 #include <google/protobuf/wire_format.h>
 // @@protoc_insertion_point(includes)
 #include <google/protobuf/port_def.inc>
-
 PROTOBUF_NAMESPACE_OPEN
 class AnyDefaultTypeInternal {
  public:
   ::PROTOBUF_NAMESPACE_ID::internal::ExplicitlyConstructed<Any> _instance;
 } _Any_default_instance_;
 PROTOBUF_NAMESPACE_CLOSE
-static void InitDefaultsAny_google_2fprotobuf_2fany_2eproto() {
+static void InitDefaultsscc_info_Any_google_2fprotobuf_2fany_2eproto() {
   GOOGLE_PROTOBUF_VERIFY_VERSION;
 
   {
@@ -34,7 +33,7 @@ static void InitDefaultsAny_google_2fprotobuf_2fany_2eproto() {
 }
 
 PROTOBUF_EXPORT ::PROTOBUF_NAMESPACE_ID::internal::SCCInfo<0> scc_info_Any_google_2fprotobuf_2fany_2eproto =
-    {{ATOMIC_VAR_INIT(::PROTOBUF_NAMESPACE_ID::internal::SCCInfoBase::kUninitialized), 0, InitDefaultsAny_google_2fprotobuf_2fany_2eproto}, {}};
+    {{ATOMIC_VAR_INIT(::PROTOBUF_NAMESPACE_ID::internal::SCCInfoBase::kUninitialized), 0, InitDefaultsscc_info_Any_google_2fprotobuf_2fany_2eproto}, {}};
 
 static ::PROTOBUF_NAMESPACE_ID::Metadata file_level_metadata_google_2fprotobuf_2fany_2eproto[1];
 static constexpr ::PROTOBUF_NAMESPACE_ID::EnumDescriptor const** file_level_enum_descriptors_google_2fprotobuf_2fany_2eproto = nullptr;
@@ -65,24 +64,22 @@ const char descriptor_table_protodef_google_2fprotobuf_2fany_2eproto[] =
   "\003GPB\252\002\036Google.Protobuf.WellKnownTypesb\006p"
   "roto3"
   ;
+static const ::PROTOBUF_NAMESPACE_ID::internal::DescriptorTable*const descriptor_table_google_2fprotobuf_2fany_2eproto_deps[1] = {
+};
+static ::PROTOBUF_NAMESPACE_ID::internal::SCCInfoBase*const descriptor_table_google_2fprotobuf_2fany_2eproto_sccs[1] = {
+  &scc_info_Any_google_2fprotobuf_2fany_2eproto.base,
+};
 static ::PROTOBUF_NAMESPACE_ID::internal::once_flag descriptor_table_google_2fprotobuf_2fany_2eproto_once;
-static ::PROTOBUF_NAMESPACE_ID::internal::DescriptorTable descriptor_table_google_2fprotobuf_2fany_2eproto = {
-  false, descriptor_table_protodef_google_2fprotobuf_2fany_2eproto, "google/protobuf/any.proto", 205,
-  &descriptor_table_google_2fprotobuf_2fany_2eproto_once, AddDescriptors_google_2fprotobuf_2fany_2eproto, schemas,
-  file_default_instances, TableStruct_google_2fprotobuf_2fany_2eproto::offsets,
+static bool descriptor_table_google_2fprotobuf_2fany_2eproto_initialized = false;
+const ::PROTOBUF_NAMESPACE_ID::internal::DescriptorTable descriptor_table_google_2fprotobuf_2fany_2eproto = {
+  &descriptor_table_google_2fprotobuf_2fany_2eproto_initialized, descriptor_table_protodef_google_2fprotobuf_2fany_2eproto, "google/protobuf/any.proto", 205,
+  &descriptor_table_google_2fprotobuf_2fany_2eproto_once, descriptor_table_google_2fprotobuf_2fany_2eproto_sccs, descriptor_table_google_2fprotobuf_2fany_2eproto_deps, 1, 0,
+  schemas, file_default_instances, TableStruct_google_2fprotobuf_2fany_2eproto::offsets,
   file_level_metadata_google_2fprotobuf_2fany_2eproto, 1, file_level_enum_descriptors_google_2fprotobuf_2fany_2eproto, file_level_service_descriptors_google_2fprotobuf_2fany_2eproto,
 };
 
-void AddDescriptors_google_2fprotobuf_2fany_2eproto() {
-  static constexpr ::PROTOBUF_NAMESPACE_ID::internal::InitFunc deps[1] =
-  {
-  };
-  ::PROTOBUF_NAMESPACE_ID::internal::InitSCC(&scc_info_Any_google_2fprotobuf_2fany_2eproto.base);
- ::PROTOBUF_NAMESPACE_ID::internal::AddDescriptors(&descriptor_table_google_2fprotobuf_2fany_2eproto, deps, 0);
-}
-
 // Force running AddDescriptors() at dynamic initialization time.
-static bool dynamic_init_dummy_google_2fprotobuf_2fany_2eproto = []() { AddDescriptors_google_2fprotobuf_2fany_2eproto(); return true; }();
+static bool dynamic_init_dummy_google_2fprotobuf_2fany_2eproto = (  ::PROTOBUF_NAMESPACE_ID::internal::AddDescriptors(&descriptor_table_google_2fprotobuf_2fany_2eproto), true);
 PROTOBUF_NAMESPACE_OPEN
 
 // ===================================================================
@@ -145,8 +142,7 @@ Any::Any(const Any& from)
 }
 
 void Any::SharedCtor() {
-  ::PROTOBUF_NAMESPACE_ID::internal::InitSCC(
-      &scc_info_Any_google_2fprotobuf_2fany_2eproto.base);
+  ::PROTOBUF_NAMESPACE_ID::internal::InitSCC(&scc_info_Any_google_2fprotobuf_2fany_2eproto.base);
   type_url_.UnsafeSetDefault(&::PROTOBUF_NAMESPACE_ID::internal::GetEmptyStringAlreadyInited());
   value_.UnsafeSetDefault(&::PROTOBUF_NAMESPACE_ID::internal::GetEmptyStringAlreadyInited());
 }
@@ -437,8 +433,7 @@ void Any::InternalSwap(Any* other) {
 }
 
 ::PROTOBUF_NAMESPACE_ID::Metadata Any::GetMetadata() const {
-  ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&::descriptor_table_google_2fprotobuf_2fany_2eproto);
-  return ::file_level_metadata_google_2fprotobuf_2fany_2eproto[kIndexInFileMessages];
+  return GetMetadataStatic();
 }
 
 

src/google/protobuf/any.pb.h

@@ -27,6 +27,7 @@
 #include <google/protobuf/generated_message_util.h>
 #include <google/protobuf/inlined_string_field.h>
 #include <google/protobuf/metadata.h>
+#include <google/protobuf/generated_message_reflection.h>
 #include <google/protobuf/message.h>
 #include <google/protobuf/repeated_field.h>  // IWYU pragma: export
 #include <google/protobuf/extension_set.h>  // IWYU pragma: export
@@ -53,7 +54,7 @@ struct PROTOBUF_EXPORT TableStruct_google_2fprotobuf_2fany_2eproto {
   static const ::PROTOBUF_NAMESPACE_ID::internal::SerializationTable serialization_table[];
   static const ::PROTOBUF_NAMESPACE_ID::uint32 offsets[];
 };
-void PROTOBUF_EXPORT AddDescriptors_google_2fprotobuf_2fany_2eproto();
+extern PROTOBUF_EXPORT const ::PROTOBUF_NAMESPACE_ID::internal::DescriptorTable descriptor_table_google_2fprotobuf_2fany_2eproto;
 PROTOBUF_NAMESPACE_OPEN
 class Any;
 class AnyDefaultTypeInternal;
@@ -92,7 +93,13 @@ class PROTOBUF_EXPORT Any :
   }
 
   static const ::PROTOBUF_NAMESPACE_ID::Descriptor* descriptor() {
-    return default_instance().GetDescriptor();
+    return GetDescriptor();
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Descriptor* GetDescriptor() {
+    return GetMetadataStatic().descriptor;
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Reflection* GetReflection() {
+    return GetMetadataStatic().reflection;
   }
   static const Any& default_instance();
 
@@ -172,6 +179,13 @@ class PROTOBUF_EXPORT Any :
   public:
 
   ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadata() const final;
+  private:
+  static ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadataStatic() {
+    ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&::descriptor_table_google_2fprotobuf_2fany_2eproto);
+    return ::descriptor_table_google_2fprotobuf_2fany_2eproto.file_level_metadata[kIndexInFileMessages];
+  }
+
+  public:
 
   // nested types ----------------------------------------------------
 

src/google/protobuf/api.pb.cc

@@ -15,11 +15,10 @@
 #include <google/protobuf/wire_format.h>
 // @@protoc_insertion_point(includes)
 #include <google/protobuf/port_def.inc>
-
-extern PROTOBUF_INTERNAL_EXPORT_google_2fprotobuf_2fapi_2eproto ::PROTOBUF_NAMESPACE_ID::internal::SCCInfo<0> scc_info_Mixin_google_2fprotobuf_2fapi_2eproto;
 extern PROTOBUF_INTERNAL_EXPORT_google_2fprotobuf_2fapi_2eproto ::PROTOBUF_NAMESPACE_ID::internal::SCCInfo<1> scc_info_Method_google_2fprotobuf_2fapi_2eproto;
-extern PROTOBUF_INTERNAL_EXPORT_google_2fprotobuf_2fsource_5fcontext_2eproto ::PROTOBUF_NAMESPACE_ID::internal::SCCInfo<0> scc_info_SourceContext_google_2fprotobuf_2fsource_5fcontext_2eproto;
+extern PROTOBUF_INTERNAL_EXPORT_google_2fprotobuf_2fapi_2eproto ::PROTOBUF_NAMESPACE_ID::internal::SCCInfo<0> scc_info_Mixin_google_2fprotobuf_2fapi_2eproto;
 extern PROTOBUF_INTERNAL_EXPORT_google_2fprotobuf_2ftype_2eproto ::PROTOBUF_NAMESPACE_ID::internal::SCCInfo<1> scc_info_Option_google_2fprotobuf_2ftype_2eproto;
+extern PROTOBUF_INTERNAL_EXPORT_google_2fprotobuf_2fsource_5fcontext_2eproto ::PROTOBUF_NAMESPACE_ID::internal::SCCInfo<0> scc_info_SourceContext_google_2fprotobuf_2fsource_5fcontext_2eproto;
 PROTOBUF_NAMESPACE_OPEN
 class ApiDefaultTypeInternal {
  public:
@@ -34,7 +33,7 @@ class MixinDefaultTypeInternal {
   ::PROTOBUF_NAMESPACE_ID::internal::ExplicitlyConstructed<Mixin> _instance;
 } _Mixin_default_instance_;
 PROTOBUF_NAMESPACE_CLOSE
-static void InitDefaultsApi_google_2fprotobuf_2fapi_2eproto() {
+static void InitDefaultsscc_info_Api_google_2fprotobuf_2fapi_2eproto() {
   GOOGLE_PROTOBUF_VERIFY_VERSION;
 
   {
@@ -46,13 +45,13 @@ static void InitDefaultsApi_google_2fprotobuf_2fapi_2eproto() {
 }
 
 PROTOBUF_EXPORT ::PROTOBUF_NAMESPACE_ID::internal::SCCInfo<4> scc_info_Api_google_2fprotobuf_2fapi_2eproto =
-    {{ATOMIC_VAR_INIT(::PROTOBUF_NAMESPACE_ID::internal::SCCInfoBase::kUninitialized), 4, InitDefaultsApi_google_2fprotobuf_2fapi_2eproto}, {
+    {{ATOMIC_VAR_INIT(::PROTOBUF_NAMESPACE_ID::internal::SCCInfoBase::kUninitialized), 4, InitDefaultsscc_info_Api_google_2fprotobuf_2fapi_2eproto}, {
       &scc_info_Method_google_2fprotobuf_2fapi_2eproto.base,
       &scc_info_Option_google_2fprotobuf_2ftype_2eproto.base,
       &scc_info_SourceContext_google_2fprotobuf_2fsource_5fcontext_2eproto.base,
       &scc_info_Mixin_google_2fprotobuf_2fapi_2eproto.base,}};
 
-static void InitDefaultsMethod_google_2fprotobuf_2fapi_2eproto() {
+static void InitDefaultsscc_info_Method_google_2fprotobuf_2fapi_2eproto() {
   GOOGLE_PROTOBUF_VERIFY_VERSION;
 
   {
@@ -64,10 +63,10 @@ static void InitDefaultsMethod_google_2fprotobuf_2fapi_2eproto() {
 }
 
 PROTOBUF_EXPORT ::PROTOBUF_NAMESPACE_ID::internal::SCCInfo<1> scc_info_Method_google_2fprotobuf_2fapi_2eproto =
-    {{ATOMIC_VAR_INIT(::PROTOBUF_NAMESPACE_ID::internal::SCCInfoBase::kUninitialized), 1, InitDefaultsMethod_google_2fprotobuf_2fapi_2eproto}, {
+    {{ATOMIC_VAR_INIT(::PROTOBUF_NAMESPACE_ID::internal::SCCInfoBase::kUninitialized), 1, InitDefaultsscc_info_Method_google_2fprotobuf_2fapi_2eproto}, {
       &scc_info_Option_google_2fprotobuf_2ftype_2eproto.base,}};
 
-static void InitDefaultsMixin_google_2fprotobuf_2fapi_2eproto() {
+static void InitDefaultsscc_info_Mixin_google_2fprotobuf_2fapi_2eproto() {
   GOOGLE_PROTOBUF_VERIFY_VERSION;
 
   {
@@ -79,7 +78,7 @@ static void InitDefaultsMixin_google_2fprotobuf_2fapi_2eproto() {
 }
 
 PROTOBUF_EXPORT ::PROTOBUF_NAMESPACE_ID::internal::SCCInfo<0> scc_info_Mixin_google_2fprotobuf_2fapi_2eproto =
-    {{ATOMIC_VAR_INIT(::PROTOBUF_NAMESPACE_ID::internal::SCCInfoBase::kUninitialized), 0, InitDefaultsMixin_google_2fprotobuf_2fapi_2eproto}, {}};
+    {{ATOMIC_VAR_INIT(::PROTOBUF_NAMESPACE_ID::internal::SCCInfoBase::kUninitialized), 0, InitDefaultsscc_info_Mixin_google_2fprotobuf_2fapi_2eproto}, {}};
 
 static ::PROTOBUF_NAMESPACE_ID::Metadata file_level_metadata_google_2fprotobuf_2fapi_2eproto[3];
 static constexpr ::PROTOBUF_NAMESPACE_ID::EnumDescriptor const** file_level_enum_descriptors_google_2fprotobuf_2fapi_2eproto = nullptr;
@@ -151,28 +150,26 @@ const char descriptor_table_protodef_google_2fprotobuf_2fapi_2eproto[] =
   "nproto/protobuf/api;api\242\002\003GPB\252\002\036Google.P"
   "rotobuf.WellKnownTypesb\006proto3"
   ;
+static const ::PROTOBUF_NAMESPACE_ID::internal::DescriptorTable*const descriptor_table_google_2fprotobuf_2fapi_2eproto_deps[2] = {
+  &::descriptor_table_google_2fprotobuf_2fsource_5fcontext_2eproto,
+  &::descriptor_table_google_2fprotobuf_2ftype_2eproto,
+};
+static ::PROTOBUF_NAMESPACE_ID::internal::SCCInfoBase*const descriptor_table_google_2fprotobuf_2fapi_2eproto_sccs[3] = {
+  &scc_info_Api_google_2fprotobuf_2fapi_2eproto.base,
+  &scc_info_Method_google_2fprotobuf_2fapi_2eproto.base,
+  &scc_info_Mixin_google_2fprotobuf_2fapi_2eproto.base,
+};
 static ::PROTOBUF_NAMESPACE_ID::internal::once_flag descriptor_table_google_2fprotobuf_2fapi_2eproto_once;
-static ::PROTOBUF_NAMESPACE_ID::internal::DescriptorTable descriptor_table_google_2fprotobuf_2fapi_2eproto = {
-  false, descriptor_table_protodef_google_2fprotobuf_2fapi_2eproto, "google/protobuf/api.proto", 750,
-  &descriptor_table_google_2fprotobuf_2fapi_2eproto_once, AddDescriptors_google_2fprotobuf_2fapi_2eproto, schemas,
-  file_default_instances, TableStruct_google_2fprotobuf_2fapi_2eproto::offsets,
+static bool descriptor_table_google_2fprotobuf_2fapi_2eproto_initialized = false;
+const ::PROTOBUF_NAMESPACE_ID::internal::DescriptorTable descriptor_table_google_2fprotobuf_2fapi_2eproto = {
+  &descriptor_table_google_2fprotobuf_2fapi_2eproto_initialized, descriptor_table_protodef_google_2fprotobuf_2fapi_2eproto, "google/protobuf/api.proto", 750,
+  &descriptor_table_google_2fprotobuf_2fapi_2eproto_once, descriptor_table_google_2fprotobuf_2fapi_2eproto_sccs, descriptor_table_google_2fprotobuf_2fapi_2eproto_deps, 3, 2,
+  schemas, file_default_instances, TableStruct_google_2fprotobuf_2fapi_2eproto::offsets,
   file_level_metadata_google_2fprotobuf_2fapi_2eproto, 3, file_level_enum_descriptors_google_2fprotobuf_2fapi_2eproto, file_level_service_descriptors_google_2fprotobuf_2fapi_2eproto,
 };
 
-void AddDescriptors_google_2fprotobuf_2fapi_2eproto() {
-  static constexpr ::PROTOBUF_NAMESPACE_ID::internal::InitFunc deps[2] =
-  {
-    ::AddDescriptors_google_2fprotobuf_2fsource_5fcontext_2eproto,
-    ::AddDescriptors_google_2fprotobuf_2ftype_2eproto,
-  };
-  ::PROTOBUF_NAMESPACE_ID::internal::InitSCC(&scc_info_Api_google_2fprotobuf_2fapi_2eproto.base);
-  ::PROTOBUF_NAMESPACE_ID::internal::InitSCC(&scc_info_Method_google_2fprotobuf_2fapi_2eproto.base);
-  ::PROTOBUF_NAMESPACE_ID::internal::InitSCC(&scc_info_Mixin_google_2fprotobuf_2fapi_2eproto.base);
- ::PROTOBUF_NAMESPACE_ID::internal::AddDescriptors(&descriptor_table_google_2fprotobuf_2fapi_2eproto, deps, 2);
-}
-
 // Force running AddDescriptors() at dynamic initialization time.
-static bool dynamic_init_dummy_google_2fprotobuf_2fapi_2eproto = []() { AddDescriptors_google_2fprotobuf_2fapi_2eproto(); return true; }();
+static bool dynamic_init_dummy_google_2fprotobuf_2fapi_2eproto = (  ::PROTOBUF_NAMESPACE_ID::internal::AddDescriptors(&descriptor_table_google_2fprotobuf_2fapi_2eproto), true);
 PROTOBUF_NAMESPACE_OPEN
 
 // ===================================================================
@@ -239,8 +236,7 @@ Api::Api(const Api& from)
 }
 
 void Api::SharedCtor() {
-  ::PROTOBUF_NAMESPACE_ID::internal::InitSCC(
-      &scc_info_Api_google_2fprotobuf_2fapi_2eproto.base);
+  ::PROTOBUF_NAMESPACE_ID::internal::InitSCC(&scc_info_Api_google_2fprotobuf_2fapi_2eproto.base);
   name_.UnsafeSetDefault(&::PROTOBUF_NAMESPACE_ID::internal::GetEmptyStringAlreadyInited());
   version_.UnsafeSetDefault(&::PROTOBUF_NAMESPACE_ID::internal::GetEmptyStringAlreadyInited());
   ::memset(&source_context_, 0, static_cast<size_t>(
@@ -800,8 +796,7 @@ void Api::InternalSwap(Api* other) {
 }
 
 ::PROTOBUF_NAMESPACE_ID::Metadata Api::GetMetadata() const {
-  ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&::descriptor_table_google_2fprotobuf_2fapi_2eproto);
-  return ::file_level_metadata_google_2fprotobuf_2fapi_2eproto[kIndexInFileMessages];
+  return GetMetadataStatic();
 }
 
 
@@ -855,8 +850,7 @@ Method::Method(const Method& from)
 }
 
 void Method::SharedCtor() {
-  ::PROTOBUF_NAMESPACE_ID::internal::InitSCC(
-      &scc_info_Method_google_2fprotobuf_2fapi_2eproto.base);
+  ::PROTOBUF_NAMESPACE_ID::internal::InitSCC(&scc_info_Method_google_2fprotobuf_2fapi_2eproto.base);
   name_.UnsafeSetDefault(&::PROTOBUF_NAMESPACE_ID::internal::GetEmptyStringAlreadyInited());
   request_type_url_.UnsafeSetDefault(&::PROTOBUF_NAMESPACE_ID::internal::GetEmptyStringAlreadyInited());
   response_type_url_.UnsafeSetDefault(&::PROTOBUF_NAMESPACE_ID::internal::GetEmptyStringAlreadyInited());
@@ -1400,8 +1394,7 @@ void Method::InternalSwap(Method* other) {
 }
 
 ::PROTOBUF_NAMESPACE_ID::Metadata Method::GetMetadata() const {
-  ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&::descriptor_table_google_2fprotobuf_2fapi_2eproto);
-  return ::file_level_metadata_google_2fprotobuf_2fapi_2eproto[kIndexInFileMessages];
+  return GetMetadataStatic();
 }
 
 
@@ -1439,8 +1432,7 @@ Mixin::Mixin(const Mixin& from)
 }
 
 void Mixin::SharedCtor() {
-  ::PROTOBUF_NAMESPACE_ID::internal::InitSCC(
-      &scc_info_Mixin_google_2fprotobuf_2fapi_2eproto.base);
+  ::PROTOBUF_NAMESPACE_ID::internal::InitSCC(&scc_info_Mixin_google_2fprotobuf_2fapi_2eproto.base);
   name_.UnsafeSetDefault(&::PROTOBUF_NAMESPACE_ID::internal::GetEmptyStringAlreadyInited());
   root_.UnsafeSetDefault(&::PROTOBUF_NAMESPACE_ID::internal::GetEmptyStringAlreadyInited());
 }
@@ -1743,8 +1735,7 @@ void Mixin::InternalSwap(Mixin* other) {
 }
 
 ::PROTOBUF_NAMESPACE_ID::Metadata Mixin::GetMetadata() const {
-  ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&::descriptor_table_google_2fprotobuf_2fapi_2eproto);
-  return ::file_level_metadata_google_2fprotobuf_2fapi_2eproto[kIndexInFileMessages];
+  return GetMetadataStatic();
 }
 
 

src/google/protobuf/api.pb.h

@@ -27,6 +27,7 @@
 #include <google/protobuf/generated_message_util.h>
 #include <google/protobuf/inlined_string_field.h>
 #include <google/protobuf/metadata.h>
+#include <google/protobuf/generated_message_reflection.h>
 #include <google/protobuf/message.h>
 #include <google/protobuf/repeated_field.h>  // IWYU pragma: export
 #include <google/protobuf/extension_set.h>  // IWYU pragma: export
@@ -54,7 +55,7 @@ struct PROTOBUF_EXPORT TableStruct_google_2fprotobuf_2fapi_2eproto {
   static const ::PROTOBUF_NAMESPACE_ID::internal::SerializationTable serialization_table[];
   static const ::PROTOBUF_NAMESPACE_ID::uint32 offsets[];
 };
-void PROTOBUF_EXPORT AddDescriptors_google_2fprotobuf_2fapi_2eproto();
+extern PROTOBUF_EXPORT const ::PROTOBUF_NAMESPACE_ID::internal::DescriptorTable descriptor_table_google_2fprotobuf_2fapi_2eproto;
 PROTOBUF_NAMESPACE_OPEN
 class Api;
 class ApiDefaultTypeInternal;
@@ -101,7 +102,13 @@ class PROTOBUF_EXPORT Api :
   }
 
   static const ::PROTOBUF_NAMESPACE_ID::Descriptor* descriptor() {
-    return default_instance().GetDescriptor();
+    return GetDescriptor();
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Descriptor* GetDescriptor() {
+    return GetMetadataStatic().descriptor;
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Reflection* GetReflection() {
+    return GetMetadataStatic().reflection;
   }
   static const Api& default_instance();
 
@@ -166,6 +173,13 @@ class PROTOBUF_EXPORT Api :
   public:
 
   ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadata() const final;
+  private:
+  static ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadataStatic() {
+    ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&::descriptor_table_google_2fprotobuf_2fapi_2eproto);
+    return ::descriptor_table_google_2fprotobuf_2fapi_2eproto.file_level_metadata[kIndexInFileMessages];
+  }
+
+  public:
 
   // nested types ----------------------------------------------------
 
@@ -289,7 +303,13 @@ class PROTOBUF_EXPORT Method :
   }
 
   static const ::PROTOBUF_NAMESPACE_ID::Descriptor* descriptor() {
-    return default_instance().GetDescriptor();
+    return GetDescriptor();
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Descriptor* GetDescriptor() {
+    return GetMetadataStatic().descriptor;
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Reflection* GetReflection() {
+    return GetMetadataStatic().reflection;
   }
   static const Method& default_instance();
 
@@ -354,6 +374,13 @@ class PROTOBUF_EXPORT Method :
   public:
 
   ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadata() const final;
+  private:
+  static ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadataStatic() {
+    ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&::descriptor_table_google_2fprotobuf_2fapi_2eproto);
+    return ::descriptor_table_google_2fprotobuf_2fapi_2eproto.file_level_metadata[kIndexInFileMessages];
+  }
+
+  public:
 
   // nested types ----------------------------------------------------
 
@@ -468,7 +495,13 @@ class PROTOBUF_EXPORT Mixin :
   }
 
   static const ::PROTOBUF_NAMESPACE_ID::Descriptor* descriptor() {
-    return default_instance().GetDescriptor();
+    return GetDescriptor();
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Descriptor* GetDescriptor() {
+    return GetMetadataStatic().descriptor;
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Reflection* GetReflection() {
+    return GetMetadataStatic().reflection;
   }
   static const Mixin& default_instance();
 
@@ -533,6 +566,13 @@ class PROTOBUF_EXPORT Mixin :
   public:
 
   ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadata() const final;
+  private:
+  static ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadataStatic() {
+    ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&::descriptor_table_google_2fprotobuf_2fapi_2eproto);
+    return ::descriptor_table_google_2fprotobuf_2fapi_2eproto.file_level_metadata[kIndexInFileMessages];
+  }
+
+  public:
 
   // nested types ----------------------------------------------------
 

src/google/protobuf/compiler/cpp/cpp_file.cc

@@ -58,6 +58,39 @@ namespace protobuf {
 namespace compiler {
 namespace cpp {
 
+namespace {
+
+// When we forward-declare things, we want to create a sorted order so our
+// output is deterministic and minimizes namespace changes.
+template <class T>
+std::string GetSortKey(const T& val) {
+  return val.full_name();
+}
+
+template <>
+std::string GetSortKey<FileDescriptor>(const FileDescriptor& val) {
+  return val.name();
+}
+
+template <>
+std::string GetSortKey<SCC>(const SCC& val) {
+  return val.GetRepresentative()->full_name();
+}
+
+template <class T>
+bool CompareSortKeys(const T* a, const T* b) {
+  return GetSortKey(*a) < GetSortKey(*b);
+}
+
+template <class T>
+std::vector<const T*> Sorted(const std::unordered_set<const T*>& vals) {
+  std::vector<const T*> sorted(vals.begin(), vals.end());
+  std::sort(sorted.begin(), sorted.end(), CompareSortKeys<T>);
+  return sorted;
+}
+
+}  // namespace
+
 FileGenerator::FileGenerator(const FileDescriptor* file, const Options& options)
     : file_(file), options_(options), scc_analyzer_(options) {
   // These variables are the same on a file level
@@ -66,12 +99,11 @@ FileGenerator::FileGenerator(const FileDescriptor* file, const Options& options)
   variables_["tablename"] = UniqueName("TableStruct", file_, options_);
   variables_["file_level_metadata"] =
       UniqueName("file_level_metadata", file_, options_);
-  variables_["desc_table"] = UniqueName("descriptor_table", file_, options_),
+  variables_["desc_table"] = DescriptorTableName(file_, options_);
   variables_["file_level_enum_descriptors"] =
       UniqueName("file_level_enum_descriptors", file_, options_);
   variables_["file_level_service_descriptors"] =
       UniqueName("file_level_service_descriptors", file_, options_);
-  variables_["add_descriptors"] = UniqueName("AddDescriptors", file_, options_);
   variables_["filename"] = file_->name();
   variables_["package_ns"] = Namespace(file_, options);
 
@@ -105,6 +137,13 @@ FileGenerator::FileGenerator(const FileDescriptor* file, const Options& options)
   for (int i = 0; i < file->weak_dependency_count(); ++i) {
     weak_deps_.insert(file->weak_dependency(i));
   }
+  for (int i = 0; i < message_generators_.size(); i++) {
+    if (IsSCCRepresentative(message_generators_[i]->descriptor_)) {
+      sccs_.push_back(GetSCC(message_generators_[i]->descriptor_));
+    }
+  }
+
+  std::sort(sccs_.begin(), sccs_.end(), CompareSortKeys<SCC>);
 }
 
 FileGenerator::~FileGenerator() = default;
@@ -145,8 +184,7 @@ void FileGenerator::GenerateHeader(io::Printer* printer) {
 
   // port_def.inc must be included after all other includes.
   IncludeFile("net/proto2/public/port_def.inc", printer);
-  format("#define $1$$ dllexport_decl$\n",
-         UniqueName("PROTOBUF_INTERNAL_EXPORT", file_, options_));
+  format("#define $1$$ dllexport_decl$\n", FileDllExport(file_, options_));
   GenerateMacroUndefs(printer);
 
   // For Any support with lite protos, we need to friend AnyMetadata, so we
@@ -405,72 +443,99 @@ void FileGenerator::GenerateSourceDefaultInstance(int idx,
                                                   io::Printer* printer) {
   Formatter format(printer, variables_);
   format(
-      "class $1$DefaultTypeInternal {\n"
+      "class $1$ {\n"
       " public:\n"
-      "  ::$proto_ns$::internal::ExplicitlyConstructed<$1$> _instance;\n",
+      "  ::$proto_ns$::internal::ExplicitlyConstructed<$2$> _instance;\n",
+      DefaultInstanceType(message_generators_[idx]->descriptor_, options_),
       message_generators_[idx]->classname_);
   format.Indent();
   message_generators_[idx]->GenerateExtraDefaultFields(printer);
   format.Outdent();
-  format("} _$1$_default_instance_;\n", message_generators_[idx]->classname_);
+  format("} $1$;\n",
+         DefaultInstanceName(message_generators_[idx]->descriptor_, options_));
 }
 
-// Generates weak symbol declarations for types that are to be considered weakly
-// referenced.
-void FileGenerator::GenerateInternalForwardDeclarations(
-    const std::vector<const FieldDescriptor*>& fields, const Options& options,
-    MessageSCCAnalyzer* scc_analyzer, io::Printer* printer) {
-  Formatter format(printer);
-  // To ensure determinism and minimize the number of namespace statements,
-  // we output the forward declarations sorted on namespace and type / function
-  // name.
-  std::set<std::string> global_namespace_decls;
-  // weak defaults
-  std::set<std::pair<std::string, std::string> > messages;
-  for (int i = 0; i < fields.size(); ++i) {
-    const FieldDescriptor* field = fields[i];
-    const Descriptor* msg = field->message_type();
-    if (msg == nullptr) continue;
-    bool is_weak = IsImplicitWeakField(field, options, scc_analyzer);
-    if (field->options().weak()) {
-      GOOGLE_CHECK(!options_.opensource_runtime);
-      is_weak = true;
-    }
-    std::string weak_attr;
-    if (is_weak) {
-      global_namespace_decls.insert(
-          "void " + UniqueName("AddDescriptors", msg, options_) +
-          "() __attribute__((weak))");
-      messages.insert(std::make_pair(Namespace(msg, options_), ClassName(msg)));
-      weak_attr = " __attribute__((weak))";
-    }
-    std::string dllexport =
-        UniqueName("PROTOBUF_INTERNAL_EXPORT", msg, options_);
-    if (IsWeak(field, options_)) {
-      dllexport = "";
+// A list of things defined in one .pb.cc file that we need to reference from
+// another .pb.cc file.
+struct FileGenerator::CrossFileReferences {
+  // Populated if we are referencing from messages or files.
+  std::unordered_set<const SCC*> strong_sccs;
+  std::unordered_set<const SCC*> weak_sccs;
+  std::unordered_set<const Descriptor*> weak_default_instances;
+
+  // Only if we are referencing from files.
+  std::unordered_set<const FileDescriptor*> strong_reflection_files;
+  std::unordered_set<const FileDescriptor*> weak_reflection_files;
+};
+
+void FileGenerator::GetCrossFileReferencesForField(const FieldDescriptor* field,
+                                                   CrossFileReferences* refs) {
+  const Descriptor* msg = field->message_type();
+  if (msg == nullptr) return;
+  const SCC* scc = GetSCC(msg);
+
+  if (IsImplicitWeakField(field, options_, &scc_analyzer_) ||
+      IsWeak(field, options_)) {
+    refs->weak_sccs.insert(scc);
+    refs->weak_default_instances.insert(msg);
+  } else {
+    refs->strong_sccs.insert(scc);
+    // We don't need to declare default instances, because it is declared in the
+    // .proto.h file we imported.
+  }
+}
+
+void FileGenerator::GetCrossFileReferencesForFile(const FileDescriptor* file,
+                                                  CrossFileReferences* refs) {
+  ForEachField(file, [this, refs](const FieldDescriptor* field) {
+    GetCrossFileReferencesForField(field, refs);
+  });
+
+  if (!HasDescriptorMethods(file, options_)) return;
+
+  for (int i = 0; i < file->dependency_count(); i++) {
+    const FileDescriptor* dep = file->dependency(i);
+    if (IsDepWeak(dep)) {
+      refs->weak_reflection_files.insert(dep);
+    } else {
+      refs->strong_reflection_files.insert(dep);
     }
-    auto scc = scc_analyzer->GetSCC(msg);
-    std::string repr =
-        UniqueName(ClassName(scc->GetRepresentative()), msg, options_);
-    global_namespace_decls.insert(StrCat(
-        "extern ", dllexport, weak_attr, " ::", ProtobufNamespace(options),
-        "::internal::SCCInfo<", scc->children.size(), "> scc_info_", repr));
   }
+}
 
-  format("\n");
+// Generates references to variables defined in other files.
+void FileGenerator::GenerateInternalForwardDeclarations(
+    const CrossFileReferences& refs, io::Printer* printer) {
+  Formatter format(printer, variables_);
+
+  for (auto scc : Sorted(refs.strong_sccs)) {
+    format("extern $1$ ::$proto_ns$::internal::SCCInfo<$2$> $3$;\n",
+           FileDllExport(scc->GetFile(), options_), scc->children.size(),
+           SccInfoSymbol(scc, options_));
+  }
+
+  for (auto scc : Sorted(refs.weak_sccs)) {
+    format(
+        "extern __attribute__((weak)) ::$proto_ns$::internal::SCCInfo<$1$> "
+        "$2$;\n",
+        scc->children.size(), SccInfoSymbol(scc, options_));
+  }
 
-  for (const std::string& decl : global_namespace_decls) {
-    format("$1$;\n", decl);
+  {
+    NamespaceOpener ns(format);
+    for (auto instance : Sorted(refs.weak_default_instances)) {
+      ns.ChangeTo(Namespace(instance, options_));
+      format("extern __attribute__((weak)) $1$ $2$;\n",
+             DefaultInstanceType(instance, options_),
+             DefaultInstanceName(instance, options_));
+    }
   }
 
-  // Weak external fields
-  NamespaceOpener ns(format);
-  for (const auto& pair : messages) {
-    ns.ChangeTo(pair.first);
+  for (auto file : Sorted(refs.weak_reflection_files)) {
     format(
-        "extern __attribute__((weak)) $1$DefaultTypeInternal "
-        "_$1$_default_instance_;\n",
-        pair.second);
+        "extern __attribute__((weak)) const "
+        "::$proto_ns$::internal::DescriptorTable $1$;\n",
+        DescriptorTableName(file, options_));
   }
 }
 
@@ -481,14 +546,15 @@ void FileGenerator::GenerateSourceForMessage(int idx, io::Printer* printer) {
   // Generate weak declarations. We do this for the whole strongly-connected
   // component (SCC), because we have a single InitDefaults* function for the
   // SCC.
-  std::vector<const FieldDescriptor*> fields;
+  CrossFileReferences refs;
   for (const Descriptor* message :
        scc_analyzer_.GetSCC(message_generators_[idx]->descriptor_)
            ->descriptors) {
-    ListAllFields(message, &fields);
+    ForEachField(message, [this, &refs](const FieldDescriptor* field) {
+      GetCrossFileReferencesForField(field, &refs);
+    });
   }
-  GenerateInternalForwardDeclarations(fields, options_, &scc_analyzer_,
-                                      printer);
+  GenerateInternalForwardDeclarations(refs, printer);
 
   if (IsSCCRepresentative(message_generators_[idx]->descriptor_)) {
     GenerateInitForSCC(GetSCC(message_generators_[idx]->descriptor_), printer);
@@ -563,10 +629,9 @@ void FileGenerator::GenerateGlobalSource(io::Printer* printer) {
 void FileGenerator::GenerateSource(io::Printer* printer) {
   Formatter format(printer, variables_);
   GenerateSourceIncludes(printer);
-  std::vector<const FieldDescriptor*> fields;
-  ListAllFields(file_, &fields);
-  GenerateInternalForwardDeclarations(fields, options_, &scc_analyzer_,
-                                      printer);
+  CrossFileReferences refs;
+  GetCrossFileReferencesForFile(file_, &refs);
+  GenerateInternalForwardDeclarations(refs, printer);
 
   {
     NamespaceOpener ns(Namespace(file_, options_), format);
@@ -585,11 +650,8 @@ void FileGenerator::GenerateSource(io::Printer* printer) {
     GenerateTables(printer);
 
     // Now generate the InitDefaults for each SCC.
-    for (int i = 0; i < message_generators_.size(); i++) {
-      if (IsSCCRepresentative(message_generators_[i]->descriptor_)) {
-        GenerateInitForSCC(GetSCC(message_generators_[i]->descriptor_),
-                           printer);
-      }
+    for (auto scc : sccs_) {
+      GenerateInitForSCC(scc, printer);
     }
 
     if (HasDescriptorMethods(file_, options_)) {
@@ -654,18 +716,6 @@ void FileGenerator::GenerateSource(io::Printer* printer) {
 void FileGenerator::GenerateReflectionInitializationCode(io::Printer* printer) {
   Formatter format(printer, variables_);
 
-  // AddDescriptors() is a file-level procedure which adds the encoded
-  // FileDescriptorProto for this .proto file to the global DescriptorPool for
-  // generated files (DescriptorPool::generated_pool()). It ordinarily runs at
-  // static initialization time, but is not used at all in LITE_RUNTIME mode.
-  //
-  // Its sibling, AssignDescriptors(), actually pulls the compiled
-  // FileDescriptor from the DescriptorPool and uses it to populate all of
-  // the global variables which store pointers to the descriptor objects.
-  // It also constructs the reflection objects.  It is called the first time
-  // anyone calls descriptor() or GetReflection() on one of the types defined
-  // in the file.
-
   if (!message_generators_.empty()) {
     format("static ::$proto_ns$::Metadata $file_level_metadata$[$1$];\n",
            message_generators_.size());
@@ -796,58 +846,64 @@ void FileGenerator::GenerateReflectionInitializationCode(io::Printer* printer) {
   }
   format.Outdent();
 
-  int num_deps = file_->dependency_count();
+  CrossFileReferences refs;
+  GetCrossFileReferencesForFile(file_, &refs);
+  int num_deps =
+      refs.strong_reflection_files.size() + refs.weak_reflection_files.size();
 
-  // Now generate the AddDescriptors() function.
-  // We have to make the once flag separate on account of MSVC 2015, which
-  // does not linker-initialize constexpr constructors. :(
+  // Build array of DescriptorTable deps.
   format(
-      "static ::$proto_ns$::internal::once_flag $desc_table$_once;\n"
-      "static "
-      "::$proto_ns$::internal::DescriptorTable $desc_table$ = {\n"
-      "  false, $1$, \"$filename$\", $2$,\n"
-      "  &$desc_table$_once, $add_descriptors$, schemas,\n"
-      "  file_default_instances, $tablename$::offsets,\n"
-      "  $file_level_metadata$, $3$, $file_level_enum_descriptors$, "
-      "$file_level_service_descriptors$,\n"
-      "};\n\n"
-      "void $add_descriptors$() {\n"
-      "  static constexpr ::$proto_ns$::internal::InitFunc deps[$4$] =\n"
-      "  {\n",
-      protodef_name, file_data.size(), message_generators_.size(),
+      "static const ::$proto_ns$::internal::DescriptorTable*const "
+      "$desc_table$_deps[$1$] = {\n",
       std::max(num_deps, 1));
-  for (int i = 0; i < num_deps; i++) {
-    const FileDescriptor* dependency = file_->dependency(i);
-    format("    ::$1$,\n", UniqueName("AddDescriptors", dependency, options_));
+
+  for (auto dep : Sorted(refs.strong_reflection_files)) {
+    format("  &::$1$,\n", DescriptorTableName(dep, options_));
   }
-  format("  };\n");
-  // Reflection referes to the default instances so make sure they are
-  // initialized.
-  for (int i = 0; i < message_generators_.size(); i++) {
-    if (!IsSCCRepresentative(message_generators_[i]->descriptor_)) continue;
-    std::string scc_name =
-        UniqueName(ClassName(message_generators_[i]->descriptor_),
-                   message_generators_[i]->descriptor_, options_);
-    format("  ::$proto_ns$::internal::InitSCC(&scc_info_$1$.base);\n",
-           scc_name);
+  for (auto dep : Sorted(refs.weak_reflection_files)) {
+    format("  &::$1$,\n", DescriptorTableName(dep, options_));
+  }
+
+  format("};\n");
+
+  // Build array of SCCs from this file.
+  format(
+      "static ::$proto_ns$::internal::SCCInfoBase*const "
+      "$desc_table$_sccs[$1$] = {\n",
+      std::max<int>(sccs_.size(), 1));
+
+  for (auto scc : sccs_) {
+    format("  &$1$.base,\n", SccInfoSymbol(scc, options_));
   }
+
+  format("};\n");
+
+  // The DescriptorTable itself.
   format(
-      " ::$proto_ns$::internal::AddDescriptors(&$desc_table$, deps, $1$);\n"
-      "}\n\n",
-      num_deps);  // 1
+      "static ::$proto_ns$::internal::once_flag $desc_table$_once;\n"
+      "static bool $desc_table$_initialized = false;\n"
+      "const ::$proto_ns$::internal::DescriptorTable $desc_table$ = {\n"
+      "  &$desc_table$_initialized, $1$, \"$filename$\", $2$,\n"
+      "  &$desc_table$_once, $desc_table$_sccs, $desc_table$_deps, $3$, $4$,\n"
+      "  schemas, file_default_instances, $tablename$::offsets,\n"
+      "  $file_level_metadata$, $5$, $file_level_enum_descriptors$, "
+      "$file_level_service_descriptors$,\n"
+      "};\n\n",
+      protodef_name, file_data.size(), sccs_.size(), num_deps,
+      message_generators_.size());
+
   format(
       "// Force running AddDescriptors() at dynamic initialization time.\n"
-      "static bool $1$ = []() { $add_descriptors$(); return true; }();\n",
+      "static bool $1$ = ("
+      "  ::$proto_ns$::internal::AddDescriptors(&$desc_table$), true);\n",
       UniqueName("dynamic_init_dummy", file_, options_));
 }
 
 void FileGenerator::GenerateInitForSCC(const SCC* scc, io::Printer* printer) {
   Formatter format(printer, variables_);
-  const std::string scc_name = ClassName(scc->GetRepresentative());
   // We use static and not anonymous namespace because symbol names are
   // substantially shorter.
-  format("static void InitDefaults$1$() {\n",
-         UniqueName(scc_name, scc->GetRepresentative(), options_));
+  format("static void InitDefaults$1$() {\n", SccInfoSymbol(scc, options_));
 
   if (options_.opensource_runtime) {
     format("  GOOGLE_PROTOBUF_VERIFY_VERSION;\n\n");
@@ -867,7 +923,8 @@ void FileGenerator::GenerateInitForSCC(const SCC* scc, io::Printer* printer) {
         "{\n"
         "  void* ptr = &$1$;\n"
         "  new (ptr) $2$();\n",
-        DefaultInstanceName(message_generators_[i]->descriptor_, options_),
+        QualifiedDefaultInstanceName(message_generators_[i]->descriptor_,
+                                     options_),
         QualifiedClassName(message_generators_[i]->descriptor_, options_));
     if (options_.opensource_runtime &&
         !IsMapEntryMessage(message_generators_[i]->descriptor_)) {
@@ -893,18 +950,14 @@ void FileGenerator::GenerateInitForSCC(const SCC* scc, io::Printer* printer) {
   format("}\n\n");
 
   format(
-      "$dllexport_decl $::$proto_ns$::internal::SCCInfo<$1$> "
-      "scc_info_$2$ =\n"
+      "$dllexport_decl $::$proto_ns$::internal::SCCInfo<$1$> $2$ =\n"
       "    "
       "{{ATOMIC_VAR_INIT(::$proto_ns$::internal::SCCInfoBase::kUninitialized), "
       "$1$, InitDefaults$2$}, {",
       scc->children.size(),  // 1
-      UniqueName(ClassName(scc->GetRepresentative()), scc->GetRepresentative(),
-                 options_));
+      SccInfoSymbol(scc, options_));
   for (const SCC* child : scc->children) {
-    auto repr = child->GetRepresentative();
-    format("\n      &scc_info_$1$.base,",
-           UniqueName(ClassName(repr), repr, options_));
+    format("\n      &$1$.base,", SccInfoSymbol(child, options_));
   }
   format("}};\n\n");
 }
@@ -1038,10 +1091,10 @@ class FileGenerator::ForwardDeclarations {
       const Descriptor* class_desc = p.second;
       format(
           "class ${1$$2$$}$;\n"
-          "class $2$DefaultTypeInternal;\n"
-          "$dllexport_decl $extern "
-          "$2$DefaultTypeInternal _$2$_default_instance_;\n",
-          class_desc, classname);
+          "class $3$;\n"
+          "$dllexport_decl $extern $3$ $4$;\n",
+          class_desc, classname, DefaultInstanceType(class_desc, options),
+          DefaultInstanceName(class_desc, options));
       if (options.lite_implicit_weak_fields) {
         format("void $1$_ReferenceStrong();\n", classname);
       }
@@ -1194,6 +1247,7 @@ void FileGenerator::GenerateLibraryIncludes(io::Printer* printer) {
 
   if (HasDescriptorMethods(file_, options_)) {
     IncludeFile("net/proto2/public/metadata.h", printer);
+    IncludeFile("net/proto2/public/generated_message_reflection.h", printer);
   } else {
     IncludeFile("net/proto2/public/metadata_lite.h", printer);
   }
@@ -1291,8 +1345,8 @@ void FileGenerator::GenerateDependencyIncludes(io::Printer* printer) {
 void FileGenerator::GenerateGlobalStateFunctionDeclarations(
     io::Printer* printer) {
   Formatter format(printer, variables_);
-  // Forward-declare the AddDescriptors, InitDefaults because these are called
-  // by .pb.cc files depending on this file.
+  // Forward-declare the DescriptorTable because this is referenced by .pb.cc
+  // files depending on this file.
   //
   // The TableStruct is also outputted in weak_message_field.cc, because the
   // weak fields must refer to table struct but cannot include the header.
@@ -1317,7 +1371,9 @@ void FileGenerator::GenerateGlobalStateFunctionDeclarations(
       "};\n",
       std::max(size_t(1), message_generators_.size()));
   if (HasDescriptorMethods(file_, options_)) {
-    format("void $dllexport_decl $$add_descriptors$();\n");
+    format(
+        "extern $dllexport_decl $const ::$proto_ns$::internal::DescriptorTable "
+        "$desc_table$;\n");
   }
 }
 

src/google/protobuf/compiler/cpp/cpp_file.h

@@ -90,6 +90,7 @@ class FileGenerator {
  private:
   // Internal type used by GenerateForwardDeclarations (defined in file.cc).
   class ForwardDeclarations;
+  struct CrossFileReferences;
 
   void IncludeFile(const std::string& google3_name, io::Printer* printer) {
     DoIncludeFile(google3_name, false, printer);
@@ -103,9 +104,12 @@ class FileGenerator {
 
   std::string CreateHeaderInclude(const std::string& basename,
                                   const FileDescriptor* file);
-  void GenerateInternalForwardDeclarations(
-      const std::vector<const FieldDescriptor*>& fields, const Options& options,
-      MessageSCCAnalyzer* scc_analyzer, io::Printer* printer);
+  void GetCrossFileReferencesForField(const FieldDescriptor* field,
+                                      CrossFileReferences* refs);
+  void GetCrossFileReferencesForFile(const FileDescriptor* file,
+                                     CrossFileReferences* refs);
+  void GenerateInternalForwardDeclarations(const CrossFileReferences& refs,
+                                           io::Printer* printer);
   void GenerateSourceIncludes(io::Printer* printer);
   void GenerateSourceDefaultInstance(int idx, io::Printer* printer);
 
@@ -174,6 +178,7 @@ class FileGenerator {
   }
 
   std::set<const FileDescriptor*> weak_deps_;
+  std::vector<const SCC*> sccs_;
 
   const FileDescriptor* file_;
   const Options options_;

src/google/protobuf/compiler/cpp/cpp_helpers.cc

@@ -376,11 +376,29 @@ std::string Namespace(const EnumDescriptor* d, const Options& options) {
   return Namespace(d->file(), options);
 }
 
+std::string DefaultInstanceType(const Descriptor* descriptor,
+                                const Options& options) {
+  return ClassName(descriptor) + "DefaultTypeInternal";
+}
+
 std::string DefaultInstanceName(const Descriptor* descriptor,
                                 const Options& options) {
+  return "_" + ClassName(descriptor, false) + "_default_instance_";
+}
+
+std::string QualifiedDefaultInstanceName(const Descriptor* descriptor,
+                                         const Options& options) {
   return QualifiedFileLevelSymbol(
-      descriptor->file(),
-      "_" + ClassName(descriptor, false) + "_default_instance_", options);
+      descriptor->file(), DefaultInstanceName(descriptor, options), options);
+}
+
+std::string DescriptorTableName(const FileDescriptor* file,
+                                const Options& options) {
+  return UniqueName("descriptor_table", file, options);
+}
+
+std::string FileDllExport(const FileDescriptor* file, const Options& options) {
+  return UniqueName("PROTOBUF_INTERNAL_EXPORT", file, options);
 }
 
 std::string ReferenceFunctionName(const Descriptor* descriptor,

src/google/protobuf/compiler/cpp/cpp_helpers.h

@@ -125,10 +125,26 @@ inline std::string ClassName(const EnumDescriptor* descriptor, bool qualified) {
                    : ClassName(descriptor);
 }
 
-// Fully qualified name of the default_instance of this message.
+// Type name of default instance.
+std::string DefaultInstanceType(const Descriptor* descriptor,
+                                const Options& options);
+
+// Non-qualified name of the default_instance of this message.
 std::string DefaultInstanceName(const Descriptor* descriptor,
                                 const Options& options);
 
+// Fully qualified name of the default_instance of this message.
+std::string QualifiedDefaultInstanceName(const Descriptor* descriptor,
+                                         const Options& options);
+
+// DescriptorTable variable name.
+std::string DescriptorTableName(const FileDescriptor* file,
+                                const Options& options);
+
+// When declaring symbol externs from another file, this macro will supply the
+// dllexport needed for the target file, if any.
+std::string FileDllExport(const FileDescriptor* file, const Options& options);
+
 // Returns the name of a no-op function that we can call to introduce a linker
 // dependency on the given message type. This is used to implement implicit weak
 // fields.
@@ -536,10 +552,39 @@ class PROTOC_EXPORT MessageSCCAnalyzer {
   std::map<const SCC*, MessageAnalysis> analysis_cache_;
 };
 
+inline std::string SccInfoSymbol(const SCC* scc, const Options& options) {
+  return UniqueName("scc_info_" + ClassName(scc->GetRepresentative()),
+                    scc->GetRepresentative(), options);
+}
+
 void ListAllFields(const Descriptor* d,
                    std::vector<const FieldDescriptor*>* fields);
 void ListAllFields(const FileDescriptor* d,
                    std::vector<const FieldDescriptor*>* fields);
+
+template <class T>
+void ForEachField(const Descriptor* d, T&& func) {
+  for (int i = 0; i < d->nested_type_count(); i++) {
+    ForEachField(d->nested_type(i), std::forward<T&&>(func));
+  }
+  for (int i = 0; i < d->extension_count(); i++) {
+    func(d->extension(i));
+  }
+  for (int i = 0; i < d->field_count(); i++) {
+    func(d->field(i));
+  }
+}
+
+template <class T>
+void ForEachField(const FileDescriptor* d, T&& func) {
+  for (int i = 0; i < d->message_type_count(); i++) {
+    ForEachField(d->message_type(i), std::forward<T&&>(func));
+  }
+  for (int i = 0; i < d->extension_count(); i++) {
+    func(d->extension(i));
+  }
+}
+
 void ListAllTypesForServices(const FileDescriptor* fd,
                              std::vector<const Descriptor*>* types);
 

src/google/protobuf/compiler/cpp/cpp_message.cc

@@ -523,10 +523,11 @@ const double kColdRatio = 0.005;
 
 bool ColdChunkSkipper::IsColdChunk(int chunk) {
   // Mark this variable as used until it is actually used
-  (void) cold_threshold_;
+  (void)cold_threshold_;
   return false;
 }
 
+
 void ColdChunkSkipper::OnStartChunk(int chunk, int cached_has_bit_index,
                                     const std::string& from,
                                     io::Printer* printer) {
@@ -617,9 +618,8 @@ MessageGenerator::MessageGenerator(
   // Variables that apply to this class
   variables_["classname"] = classname_;
   variables_["classtype"] = QualifiedClassName(descriptor_, options);
-  std::string scc_name =
-      ClassName(scc_analyzer_->GetSCC(descriptor_)->GetRepresentative());
-  variables_["scc_name"] = UniqueName(scc_name, descriptor_, options_);
+  variables_["scc_info"] =
+      SccInfoSymbol(scc_analyzer_->GetSCC(descriptor_), options_);
   variables_["full_name"] = descriptor_->full_name();
   variables_["superclass"] = SuperClassName(descriptor_, options_);
 
@@ -1008,8 +1008,16 @@ void MessageGenerator::GenerateClassDefinition(io::Printer* printer) {
     if (HasDescriptorMethods(descriptor_->file(), options_)) {
       format(
           "  void MergeFrom(const ::$proto_ns$::Message& other) final;\n"
-          "  ::$proto_ns$::Metadata GetMetadata() const;\n"
-          "};\n");
+          "  ::$proto_ns$::Metadata GetMetadata() const final;\n"
+          "  private:\n"
+          "  static ::$proto_ns$::Metadata GetMetadataStatic() {\n"
+          "    ::$proto_ns$::internal::AssignDescriptors(&::$desc_table$);\n"
+          "    return ::$desc_table$.file_level_metadata[$1$];\n"
+          "  }\n"
+          "\n"
+          "  public:\n"
+          "};\n",
+          index_in_file_messages_);
     } else {
       format("};\n");
     }
@@ -1090,7 +1098,25 @@ void MessageGenerator::GenerateClassDefinition(io::Printer* printer) {
       !descriptor_->options().no_standard_descriptor_accessor()) {
     format(
         "static const ::$proto_ns$::Descriptor* descriptor() {\n"
-        "  return default_instance().GetDescriptor();\n"
+        "  return GetDescriptor();\n"
+        "}\n");
+  }
+
+  if (HasDescriptorMethods(descriptor_->file(), options_)) {
+    // These shadow non-static methods of the same names in Message.  We
+    // redefine them here because calls directly on the generated class can be
+    // statically analyzed -- we know what descriptor types are being requested.
+    // It also avoids a vtable dispatch.
+    //
+    // We would eventually like to eliminate the methods in Message, and having
+    // this separate also lets us track calls to the base class methods
+    // separately.
+    format(
+        "static const ::$proto_ns$::Descriptor* GetDescriptor() {\n"
+        "  return GetMetadataStatic().descriptor;\n"
+        "}\n"
+        "static const ::$proto_ns$::Reflection* GetReflection() {\n"
+        "  return GetMetadataStatic().reflection;\n"
         "}\n");
   }
 
@@ -1301,6 +1327,13 @@ void MessageGenerator::GenerateClassDefinition(io::Printer* printer) {
   if (HasDescriptorMethods(descriptor_->file(), options_)) {
     format(
         "::$proto_ns$::Metadata GetMetadata() const final;\n"
+        "private:\n"
+        "static ::$proto_ns$::Metadata GetMetadataStatic() {\n"
+        "  ::$proto_ns$::internal::AssignDescriptors(&::$desc_table$);\n"
+        "  return ::$desc_table$.file_level_metadata[kIndexInFileMessages];\n"
+        "}\n"
+        "\n"
+        "public:\n"
         "\n");
   } else {
     format(
@@ -1870,7 +1903,8 @@ void MessageGenerator::GenerateDefaultInstanceInitializer(
             "  $package_ns$::$name$_ = "
             "::$proto_ns$::Empty::internal_default_instance();\n"
             "}\n",
-            DefaultInstanceName(field->message_type(), options_));  // 1
+            QualifiedDefaultInstanceName(field->message_type(),
+                                         options_));  // 1
         continue;
       }
       format(
@@ -1897,11 +1931,8 @@ void MessageGenerator::GenerateClassMethods(io::Printer* printer) {
     if (HasDescriptorMethods(descriptor_->file(), options_)) {
       format(
           "::$proto_ns$::Metadata $classname$::GetMetadata() const {\n"
-          "  "
-          "::$proto_ns$::internal::AssignDescriptors(&::$desc_table$);\n"
-          "  return ::$file_level_metadata$[$1$];\n"
-          "}\n",
-          index_in_file_messages_);
+          "  return GetMetadataStatic();\n"
+          "}\n");
       format(
           "void $classname$::MergeFrom(\n"
           "    const ::$proto_ns$::Message& other) {\n"
@@ -2053,8 +2084,7 @@ void MessageGenerator::GenerateClassMethods(io::Printer* printer) {
   if (HasDescriptorMethods(descriptor_->file(), options_)) {
     format(
         "::$proto_ns$::Metadata $classname$::GetMetadata() const {\n"
-        "  ::$proto_ns$::internal::AssignDescriptors(&::$desc_table$);\n"
-        "  return ::$file_level_metadata$[kIndexInFileMessages];\n"
+        "  return GetMetadataStatic();\n"
         "}\n"
         "\n");
   } else {
@@ -2222,8 +2252,8 @@ size_t MessageGenerator::GenerateParseAuxTable(io::Printer* printer) {
           break;
         }
         format.Set("field_classname", ClassName(field->message_type(), false));
-        format.Set("default_instance",
-                   DefaultInstanceName(field->message_type(), options_));
+        format.Set("default_instance", QualifiedDefaultInstanceName(
+                                           field->message_type(), options_));
 
         format(
             "{::$proto_ns$::internal::AuxillaryParseTableField::message_aux{\n"
@@ -2337,9 +2367,7 @@ void MessageGenerator::GenerateSharedConstructorCode(io::Printer* printer) {
   format("void $classname$::SharedCtor() {\n");
   if (scc_analyzer_->GetSCCAnalysis(scc_analyzer_->GetSCC(descriptor_))
           .constructor_requires_initialization) {
-    format(
-        "  ::$proto_ns$::internal::InitSCC(\n"
-        "      &scc_info_$scc_name$.base);\n");
+    format("  ::$proto_ns$::internal::InitSCC(&$scc_info$.base);\n");
   }
 
   format.Indent();
@@ -2696,7 +2724,7 @@ void MessageGenerator::GenerateStructors(io::Printer* printer) {
   format(
       "const $classname$& $classname$::default_instance() {\n"
       "  "
-      "::$proto_ns$::internal::InitSCC(&::scc_info_$scc_name$.base)"
+      "::$proto_ns$::internal::InitSCC(&::$scc_info$.base)"
       ";\n"
       "  return *internal_default_instance();\n"
       "}\n\n");

src/google/protobuf/compiler/cpp/cpp_message_field.cc

@@ -62,7 +62,7 @@ void SetMessageVariables(const FieldDescriptor* descriptor,
   (*variables)["casted_member"] = ReinterpretCast(
       (*variables)["type"] + "*", (*variables)["name"] + "_", implicit_weak);
   (*variables)["type_default_instance"] =
-      DefaultInstanceName(descriptor->message_type(), options);
+      QualifiedDefaultInstanceName(descriptor->message_type(), options);
   (*variables)["type_reference_function"] =
       implicit_weak
           ? ("  " + ReferenceFunctionName(descriptor->message_type(), options) +

src/google/protobuf/compiler/parser.cc

@@ -114,6 +114,49 @@ std::string MapEntryName(const std::string& field_name) {
   return result;
 }
 
+bool IsUppercase(char c) { return c >= 'A' && c <= 'Z'; }
+
+bool IsLowercase(char c) { return c >= 'a' && c <= 'z'; }
+
+bool IsNumber(char c) { return c >= '0' && c <= '9'; }
+
+bool IsUpperCamelCase(const string& name) {
+  if (name.empty()) {
+    return true;
+  }
+  // Name must start with an upper case character.
+  if (!IsUppercase(name[0])) {
+    return false;
+  }
+  // Must not contains underscore.
+  for (int i = 1; i < name.length(); i++) {
+    if (name[i] == '_') {
+      return false;
+    }
+  }
+  return true;
+}
+
+bool IsUpperUnderscore(const string& name) {
+  for (int i = 0; i < name.length(); i++) {
+    const char c = name[i];
+    if (!IsUppercase(c) && c != '_' && !IsNumber(c)) {
+      return false;
+    }
+  }
+  return true;
+}
+
+bool IsLowerUnderscore(const string& name) {
+  for (int i = 0; i < name.length(); i++) {
+    const char c = name[i];
+    if (!IsLowercase(c) && c != '_' && !IsNumber(c)) {
+      return false;
+    }
+  }
+  return true;
+}
+
 }  // anonymous namespace
 
 // Makes code slightly more readable.  The meaning of "DO(foo)" is
@@ -335,6 +378,13 @@ void Parser::AddError(const std::string& error) {
   AddError(input_->current().line, input_->current().column, error);
 }
 
+void Parser::AddWarning(const string& warning) {
+  if (error_collector_ != nullptr) {
+    error_collector_->AddWarning(input_->current().line,
+                                 input_->current().column, warning);
+  }
+}
+
 // -------------------------------------------------------------------
 
 Parser::LocationRecorder::LocationRecorder(Parser* parser)
@@ -516,7 +566,7 @@ bool Parser::ValidateEnum(const EnumDescriptorProto* proto) {
   std::set<int> used_values;
   bool has_duplicates = false;
   for (int i = 0; i < proto->value_size(); ++i) {
-    const EnumValueDescriptorProto enum_value = proto->value(i);
+    const EnumValueDescriptorProto& enum_value = proto->value(i);
     if (used_values.find(enum_value.number()) != used_values.end()) {
       has_duplicates = true;
       break;
@@ -536,6 +586,19 @@ bool Parser::ValidateEnum(const EnumDescriptorProto* proto) {
     return false;
   }
 
+  // Enforce that enum constants must be UPPER_CASE except in case of
+  // enum_alias.
+  if (!allow_alias) {
+    for (const auto& enum_value : proto->value()) {
+      if (!IsUpperUnderscore(enum_value.name())) {
+        AddWarning(
+            "Enum constant should be in UPPER_CASE. Found: " +
+            enum_value.name() +
+            ". See https://developers.google.com/protocol-buffers/docs/style");
+      }
+    }
+  }
+
   return true;
 }
 
@@ -685,6 +748,12 @@ bool Parser::ParseMessageDefinition(
     location.RecordLegacyLocation(message,
                                   DescriptorPool::ErrorCollector::NAME);
     DO(ConsumeIdentifier(message->mutable_name(), "Expected message name."));
+    if (!IsUpperCamelCase(message->name())) {
+      AddWarning(
+          "Message name should be in UpperCamelCase. Found: " +
+          message->name() +
+          ". See https://developers.google.com/protocol-buffers/docs/style");
+    }
   }
   DO(ParseMessageBlock(message, message_location, containing_file));
   return true;
@@ -929,6 +998,12 @@ bool Parser::ParseMessageFieldNoLabel(
                               FieldDescriptorProto::kNameFieldNumber);
     location.RecordLegacyLocation(field, DescriptorPool::ErrorCollector::NAME);
     DO(ConsumeIdentifier(field->mutable_name(), "Expected field name."));
+
+    if (!IsLowerUnderscore(field->name())) {
+      AddWarning(
+          "Field name should be lowercase. Found: " + field->name() +
+          ". See: https://developers.google.com/protocol-buffers/docs/style");
+    }
   }
   DO(Consume("=", "Missing field number."));
 

src/google/protobuf/compiler/parser.h

@@ -206,6 +206,10 @@ class PROTOBUF_EXPORT Parser {
   // of the current token.
   void AddError(const std::string& error);
 
+  // Invokes error_collector_->AddWarning() with the line and column number
+  // of the current token.
+  void AddWarning(const string& warning);
+
   // Records a location in the SourceCodeInfo.location table (see
   // descriptor.proto).  We use RAII to ensure that the start and end locations
   // are recorded -- the constructor records the start location and the

src/google/protobuf/compiler/plugin.pb.cc

@@ -15,10 +15,9 @@
 #include <google/protobuf/wire_format.h>
 // @@protoc_insertion_point(includes)
 #include <google/protobuf/port_def.inc>
-
+extern PROTOBUF_INTERNAL_EXPORT_google_2fprotobuf_2fdescriptor_2eproto ::PROTOBUF_NAMESPACE_ID::internal::SCCInfo<6> scc_info_FileDescriptorProto_google_2fprotobuf_2fdescriptor_2eproto;
 extern PROTOBUF_INTERNAL_EXPORT_google_2fprotobuf_2fcompiler_2fplugin_2eproto ::PROTOBUF_NAMESPACE_ID::internal::SCCInfo<0> scc_info_CodeGeneratorResponse_File_google_2fprotobuf_2fcompiler_2fplugin_2eproto;
 extern PROTOBUF_INTERNAL_EXPORT_google_2fprotobuf_2fcompiler_2fplugin_2eproto ::PROTOBUF_NAMESPACE_ID::internal::SCCInfo<0> scc_info_Version_google_2fprotobuf_2fcompiler_2fplugin_2eproto;
-extern PROTOBUF_INTERNAL_EXPORT_google_2fprotobuf_2fdescriptor_2eproto ::PROTOBUF_NAMESPACE_ID::internal::SCCInfo<6> scc_info_FileDescriptorProto_google_2fprotobuf_2fdescriptor_2eproto;
 PROTOBUF_NAMESPACE_OPEN
 namespace compiler {
 class VersionDefaultTypeInternal {
@@ -39,37 +38,38 @@ class CodeGeneratorResponseDefaultTypeInternal {
 } _CodeGeneratorResponse_default_instance_;
 }  // namespace compiler
 PROTOBUF_NAMESPACE_CLOSE
-static void InitDefaultsVersion_google_2fprotobuf_2fcompiler_2fplugin_2eproto() {
+static void InitDefaultsscc_info_CodeGeneratorRequest_google_2fprotobuf_2fcompiler_2fplugin_2eproto() {
   GOOGLE_PROTOBUF_VERIFY_VERSION;
 
   {
-    void* ptr = &PROTOBUF_NAMESPACE_ID::compiler::_Version_default_instance_;
-    new (ptr) PROTOBUF_NAMESPACE_ID::compiler::Version();
+    void* ptr = &PROTOBUF_NAMESPACE_ID::compiler::_CodeGeneratorRequest_default_instance_;
+    new (ptr) PROTOBUF_NAMESPACE_ID::compiler::CodeGeneratorRequest();
     ::PROTOBUF_NAMESPACE_ID::internal::OnShutdownDestroyMessage(ptr);
   }
-  PROTOBUF_NAMESPACE_ID::compiler::Version::InitAsDefaultInstance();
+  PROTOBUF_NAMESPACE_ID::compiler::CodeGeneratorRequest::InitAsDefaultInstance();
 }
 
-PROTOC_EXPORT ::PROTOBUF_NAMESPACE_ID::internal::SCCInfo<0> scc_info_Version_google_2fprotobuf_2fcompiler_2fplugin_2eproto =
-    {{ATOMIC_VAR_INIT(::PROTOBUF_NAMESPACE_ID::internal::SCCInfoBase::kUninitialized), 0, InitDefaultsVersion_google_2fprotobuf_2fcompiler_2fplugin_2eproto}, {}};
+PROTOC_EXPORT ::PROTOBUF_NAMESPACE_ID::internal::SCCInfo<2> scc_info_CodeGeneratorRequest_google_2fprotobuf_2fcompiler_2fplugin_2eproto =
+    {{ATOMIC_VAR_INIT(::PROTOBUF_NAMESPACE_ID::internal::SCCInfoBase::kUninitialized), 2, InitDefaultsscc_info_CodeGeneratorRequest_google_2fprotobuf_2fcompiler_2fplugin_2eproto}, {
+      &scc_info_FileDescriptorProto_google_2fprotobuf_2fdescriptor_2eproto.base,
+      &scc_info_Version_google_2fprotobuf_2fcompiler_2fplugin_2eproto.base,}};
 
-static void InitDefaultsCodeGeneratorRequest_google_2fprotobuf_2fcompiler_2fplugin_2eproto() {
+static void InitDefaultsscc_info_CodeGeneratorResponse_google_2fprotobuf_2fcompiler_2fplugin_2eproto() {
   GOOGLE_PROTOBUF_VERIFY_VERSION;
 
   {
-    void* ptr = &PROTOBUF_NAMESPACE_ID::compiler::_CodeGeneratorRequest_default_instance_;
-    new (ptr) PROTOBUF_NAMESPACE_ID::compiler::CodeGeneratorRequest();
+    void* ptr = &PROTOBUF_NAMESPACE_ID::compiler::_CodeGeneratorResponse_default_instance_;
+    new (ptr) PROTOBUF_NAMESPACE_ID::compiler::CodeGeneratorResponse();
     ::PROTOBUF_NAMESPACE_ID::internal::OnShutdownDestroyMessage(ptr);
   }
-  PROTOBUF_NAMESPACE_ID::compiler::CodeGeneratorRequest::InitAsDefaultInstance();
+  PROTOBUF_NAMESPACE_ID::compiler::CodeGeneratorResponse::InitAsDefaultInstance();
 }
 
-PROTOC_EXPORT ::PROTOBUF_NAMESPACE_ID::internal::SCCInfo<2> scc_info_CodeGeneratorRequest_google_2fprotobuf_2fcompiler_2fplugin_2eproto =
-    {{ATOMIC_VAR_INIT(::PROTOBUF_NAMESPACE_ID::internal::SCCInfoBase::kUninitialized), 2, InitDefaultsCodeGeneratorRequest_google_2fprotobuf_2fcompiler_2fplugin_2eproto}, {
-      &scc_info_FileDescriptorProto_google_2fprotobuf_2fdescriptor_2eproto.base,
-      &scc_info_Version_google_2fprotobuf_2fcompiler_2fplugin_2eproto.base,}};
+PROTOC_EXPORT ::PROTOBUF_NAMESPACE_ID::internal::SCCInfo<1> scc_info_CodeGeneratorResponse_google_2fprotobuf_2fcompiler_2fplugin_2eproto =
+    {{ATOMIC_VAR_INIT(::PROTOBUF_NAMESPACE_ID::internal::SCCInfoBase::kUninitialized), 1, InitDefaultsscc_info_CodeGeneratorResponse_google_2fprotobuf_2fcompiler_2fplugin_2eproto}, {
+      &scc_info_CodeGeneratorResponse_File_google_2fprotobuf_2fcompiler_2fplugin_2eproto.base,}};
 
-static void InitDefaultsCodeGeneratorResponse_File_google_2fprotobuf_2fcompiler_2fplugin_2eproto() {
+static void InitDefaultsscc_info_CodeGeneratorResponse_File_google_2fprotobuf_2fcompiler_2fplugin_2eproto() {
   GOOGLE_PROTOBUF_VERIFY_VERSION;
 
   {
@@ -81,22 +81,21 @@ static void InitDefaultsCodeGeneratorResponse_File_google_2fprotobuf_2fcompiler_
 }
 
 PROTOC_EXPORT ::PROTOBUF_NAMESPACE_ID::internal::SCCInfo<0> scc_info_CodeGeneratorResponse_File_google_2fprotobuf_2fcompiler_2fplugin_2eproto =
-    {{ATOMIC_VAR_INIT(::PROTOBUF_NAMESPACE_ID::internal::SCCInfoBase::kUninitialized), 0, InitDefaultsCodeGeneratorResponse_File_google_2fprotobuf_2fcompiler_2fplugin_2eproto}, {}};
+    {{ATOMIC_VAR_INIT(::PROTOBUF_NAMESPACE_ID::internal::SCCInfoBase::kUninitialized), 0, InitDefaultsscc_info_CodeGeneratorResponse_File_google_2fprotobuf_2fcompiler_2fplugin_2eproto}, {}};
 
-static void InitDefaultsCodeGeneratorResponse_google_2fprotobuf_2fcompiler_2fplugin_2eproto() {
+static void InitDefaultsscc_info_Version_google_2fprotobuf_2fcompiler_2fplugin_2eproto() {
   GOOGLE_PROTOBUF_VERIFY_VERSION;
 
   {
-    void* ptr = &PROTOBUF_NAMESPACE_ID::compiler::_CodeGeneratorResponse_default_instance_;
-    new (ptr) PROTOBUF_NAMESPACE_ID::compiler::CodeGeneratorResponse();
+    void* ptr = &PROTOBUF_NAMESPACE_ID::compiler::_Version_default_instance_;
+    new (ptr) PROTOBUF_NAMESPACE_ID::compiler::Version();
     ::PROTOBUF_NAMESPACE_ID::internal::OnShutdownDestroyMessage(ptr);
   }
-  PROTOBUF_NAMESPACE_ID::compiler::CodeGeneratorResponse::InitAsDefaultInstance();
+  PROTOBUF_NAMESPACE_ID::compiler::Version::InitAsDefaultInstance();
 }
 
-PROTOC_EXPORT ::PROTOBUF_NAMESPACE_ID::internal::SCCInfo<1> scc_info_CodeGeneratorResponse_google_2fprotobuf_2fcompiler_2fplugin_2eproto =
-    {{ATOMIC_VAR_INIT(::PROTOBUF_NAMESPACE_ID::internal::SCCInfoBase::kUninitialized), 1, InitDefaultsCodeGeneratorResponse_google_2fprotobuf_2fcompiler_2fplugin_2eproto}, {
-      &scc_info_CodeGeneratorResponse_File_google_2fprotobuf_2fcompiler_2fplugin_2eproto.base,}};
+PROTOC_EXPORT ::PROTOBUF_NAMESPACE_ID::internal::SCCInfo<0> scc_info_Version_google_2fprotobuf_2fcompiler_2fplugin_2eproto =
+    {{ATOMIC_VAR_INIT(::PROTOBUF_NAMESPACE_ID::internal::SCCInfoBase::kUninitialized), 0, InitDefaultsscc_info_Version_google_2fprotobuf_2fcompiler_2fplugin_2eproto}, {}};
 
 static ::PROTOBUF_NAMESPACE_ID::Metadata file_level_metadata_google_2fprotobuf_2fcompiler_2fplugin_2eproto[4];
 static constexpr ::PROTOBUF_NAMESPACE_ID::EnumDescriptor const** file_level_enum_descriptors_google_2fprotobuf_2fcompiler_2fplugin_2eproto = nullptr;
@@ -182,28 +181,26 @@ const char descriptor_table_protodef_google_2fprotobuf_2fcompiler_2fplugin_2epro
   "pilerB\014PluginProtosZ9github.com/golang/p"
   "rotobuf/protoc-gen-go/plugin;plugin_go"
   ;
+static const ::PROTOBUF_NAMESPACE_ID::internal::DescriptorTable*const descriptor_table_google_2fprotobuf_2fcompiler_2fplugin_2eproto_deps[1] = {
+  &::descriptor_table_google_2fprotobuf_2fdescriptor_2eproto,
+};
+static ::PROTOBUF_NAMESPACE_ID::internal::SCCInfoBase*const descriptor_table_google_2fprotobuf_2fcompiler_2fplugin_2eproto_sccs[4] = {
+  &scc_info_CodeGeneratorRequest_google_2fprotobuf_2fcompiler_2fplugin_2eproto.base,
+  &scc_info_CodeGeneratorResponse_google_2fprotobuf_2fcompiler_2fplugin_2eproto.base,
+  &scc_info_CodeGeneratorResponse_File_google_2fprotobuf_2fcompiler_2fplugin_2eproto.base,
+  &scc_info_Version_google_2fprotobuf_2fcompiler_2fplugin_2eproto.base,
+};
 static ::PROTOBUF_NAMESPACE_ID::internal::once_flag descriptor_table_google_2fprotobuf_2fcompiler_2fplugin_2eproto_once;
-static ::PROTOBUF_NAMESPACE_ID::internal::DescriptorTable descriptor_table_google_2fprotobuf_2fcompiler_2fplugin_2eproto = {
-  false, descriptor_table_protodef_google_2fprotobuf_2fcompiler_2fplugin_2eproto, "google/protobuf/compiler/plugin.proto", 638,
-  &descriptor_table_google_2fprotobuf_2fcompiler_2fplugin_2eproto_once, AddDescriptors_google_2fprotobuf_2fcompiler_2fplugin_2eproto, schemas,
-  file_default_instances, TableStruct_google_2fprotobuf_2fcompiler_2fplugin_2eproto::offsets,
+static bool descriptor_table_google_2fprotobuf_2fcompiler_2fplugin_2eproto_initialized = false;
+const ::PROTOBUF_NAMESPACE_ID::internal::DescriptorTable descriptor_table_google_2fprotobuf_2fcompiler_2fplugin_2eproto = {
+  &descriptor_table_google_2fprotobuf_2fcompiler_2fplugin_2eproto_initialized, descriptor_table_protodef_google_2fprotobuf_2fcompiler_2fplugin_2eproto, "google/protobuf/compiler/plugin.proto", 638,
+  &descriptor_table_google_2fprotobuf_2fcompiler_2fplugin_2eproto_once, descriptor_table_google_2fprotobuf_2fcompiler_2fplugin_2eproto_sccs, descriptor_table_google_2fprotobuf_2fcompiler_2fplugin_2eproto_deps, 4, 1,
+  schemas, file_default_instances, TableStruct_google_2fprotobuf_2fcompiler_2fplugin_2eproto::offsets,
   file_level_metadata_google_2fprotobuf_2fcompiler_2fplugin_2eproto, 4, file_level_enum_descriptors_google_2fprotobuf_2fcompiler_2fplugin_2eproto, file_level_service_descriptors_google_2fprotobuf_2fcompiler_2fplugin_2eproto,
 };
 
-void AddDescriptors_google_2fprotobuf_2fcompiler_2fplugin_2eproto() {
-  static constexpr ::PROTOBUF_NAMESPACE_ID::internal::InitFunc deps[1] =
-  {
-    ::AddDescriptors_google_2fprotobuf_2fdescriptor_2eproto,
-  };
-  ::PROTOBUF_NAMESPACE_ID::internal::InitSCC(&scc_info_Version_google_2fprotobuf_2fcompiler_2fplugin_2eproto.base);
-  ::PROTOBUF_NAMESPACE_ID::internal::InitSCC(&scc_info_CodeGeneratorRequest_google_2fprotobuf_2fcompiler_2fplugin_2eproto.base);
-  ::PROTOBUF_NAMESPACE_ID::internal::InitSCC(&scc_info_CodeGeneratorResponse_File_google_2fprotobuf_2fcompiler_2fplugin_2eproto.base);
-  ::PROTOBUF_NAMESPACE_ID::internal::InitSCC(&scc_info_CodeGeneratorResponse_google_2fprotobuf_2fcompiler_2fplugin_2eproto.base);
- ::PROTOBUF_NAMESPACE_ID::internal::AddDescriptors(&descriptor_table_google_2fprotobuf_2fcompiler_2fplugin_2eproto, deps, 1);
-}
-
 // Force running AddDescriptors() at dynamic initialization time.
-static bool dynamic_init_dummy_google_2fprotobuf_2fcompiler_2fplugin_2eproto = []() { AddDescriptors_google_2fprotobuf_2fcompiler_2fplugin_2eproto(); return true; }();
+static bool dynamic_init_dummy_google_2fprotobuf_2fcompiler_2fplugin_2eproto = (  ::PROTOBUF_NAMESPACE_ID::internal::AddDescriptors(&descriptor_table_google_2fprotobuf_2fcompiler_2fplugin_2eproto), true);
 PROTOBUF_NAMESPACE_OPEN
 namespace compiler {
 
@@ -256,8 +253,7 @@ Version::Version(const Version& from)
 }
 
 void Version::SharedCtor() {
-  ::PROTOBUF_NAMESPACE_ID::internal::InitSCC(
-      &scc_info_Version_google_2fprotobuf_2fcompiler_2fplugin_2eproto.base);
+  ::PROTOBUF_NAMESPACE_ID::internal::InitSCC(&scc_info_Version_google_2fprotobuf_2fcompiler_2fplugin_2eproto.base);
   suffix_.UnsafeSetDefault(&::PROTOBUF_NAMESPACE_ID::internal::GetEmptyStringAlreadyInited());
   ::memset(&major_, 0, static_cast<size_t>(
       reinterpret_cast<char*>(&patch_) -
@@ -651,8 +647,7 @@ void Version::InternalSwap(Version* other) {
 }
 
 ::PROTOBUF_NAMESPACE_ID::Metadata Version::GetMetadata() const {
-  ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&::descriptor_table_google_2fprotobuf_2fcompiler_2fplugin_2eproto);
-  return ::file_level_metadata_google_2fprotobuf_2fcompiler_2fplugin_2eproto[kIndexInFileMessages];
+  return GetMetadataStatic();
 }
 
 
@@ -713,8 +708,7 @@ CodeGeneratorRequest::CodeGeneratorRequest(const CodeGeneratorRequest& from)
 }
 
 void CodeGeneratorRequest::SharedCtor() {
-  ::PROTOBUF_NAMESPACE_ID::internal::InitSCC(
-      &scc_info_CodeGeneratorRequest_google_2fprotobuf_2fcompiler_2fplugin_2eproto.base);
+  ::PROTOBUF_NAMESPACE_ID::internal::InitSCC(&scc_info_CodeGeneratorRequest_google_2fprotobuf_2fcompiler_2fplugin_2eproto.base);
   parameter_.UnsafeSetDefault(&::PROTOBUF_NAMESPACE_ID::internal::GetEmptyStringAlreadyInited());
   compiler_version_ = nullptr;
 }
@@ -1137,8 +1131,7 @@ void CodeGeneratorRequest::InternalSwap(CodeGeneratorRequest* other) {
 }
 
 ::PROTOBUF_NAMESPACE_ID::Metadata CodeGeneratorRequest::GetMetadata() const {
-  ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&::descriptor_table_google_2fprotobuf_2fcompiler_2fplugin_2eproto);
-  return ::file_level_metadata_google_2fprotobuf_2fcompiler_2fplugin_2eproto[kIndexInFileMessages];
+  return GetMetadataStatic();
 }
 
 
@@ -1192,8 +1185,7 @@ CodeGeneratorResponse_File::CodeGeneratorResponse_File(const CodeGeneratorRespon
 }
 
 void CodeGeneratorResponse_File::SharedCtor() {
-  ::PROTOBUF_NAMESPACE_ID::internal::InitSCC(
-      &scc_info_CodeGeneratorResponse_File_google_2fprotobuf_2fcompiler_2fplugin_2eproto.base);
+  ::PROTOBUF_NAMESPACE_ID::internal::InitSCC(&scc_info_CodeGeneratorResponse_File_google_2fprotobuf_2fcompiler_2fplugin_2eproto.base);
   name_.UnsafeSetDefault(&::PROTOBUF_NAMESPACE_ID::internal::GetEmptyStringAlreadyInited());
   insertion_point_.UnsafeSetDefault(&::PROTOBUF_NAMESPACE_ID::internal::GetEmptyStringAlreadyInited());
   content_.UnsafeSetDefault(&::PROTOBUF_NAMESPACE_ID::internal::GetEmptyStringAlreadyInited());
@@ -1576,8 +1568,7 @@ void CodeGeneratorResponse_File::InternalSwap(CodeGeneratorResponse_File* other)
 }
 
 ::PROTOBUF_NAMESPACE_ID::Metadata CodeGeneratorResponse_File::GetMetadata() const {
-  ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&::descriptor_table_google_2fprotobuf_2fcompiler_2fplugin_2eproto);
-  return ::file_level_metadata_google_2fprotobuf_2fcompiler_2fplugin_2eproto[kIndexInFileMessages];
+  return GetMetadataStatic();
 }
 
 
@@ -1617,8 +1608,7 @@ CodeGeneratorResponse::CodeGeneratorResponse(const CodeGeneratorResponse& from)
 }
 
 void CodeGeneratorResponse::SharedCtor() {
-  ::PROTOBUF_NAMESPACE_ID::internal::InitSCC(
-      &scc_info_CodeGeneratorResponse_google_2fprotobuf_2fcompiler_2fplugin_2eproto.base);
+  ::PROTOBUF_NAMESPACE_ID::internal::InitSCC(&scc_info_CodeGeneratorResponse_google_2fprotobuf_2fcompiler_2fplugin_2eproto.base);
   error_.UnsafeSetDefault(&::PROTOBUF_NAMESPACE_ID::internal::GetEmptyStringAlreadyInited());
 }
 
@@ -1926,8 +1916,7 @@ void CodeGeneratorResponse::InternalSwap(CodeGeneratorResponse* other) {
 }
 
 ::PROTOBUF_NAMESPACE_ID::Metadata CodeGeneratorResponse::GetMetadata() const {
-  ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&::descriptor_table_google_2fprotobuf_2fcompiler_2fplugin_2eproto);
-  return ::file_level_metadata_google_2fprotobuf_2fcompiler_2fplugin_2eproto[kIndexInFileMessages];
+  return GetMetadataStatic();
 }
 
 

src/google/protobuf/compiler/plugin.pb.h

@@ -27,6 +27,7 @@
 #include <google/protobuf/generated_message_util.h>
 #include <google/protobuf/inlined_string_field.h>
 #include <google/protobuf/metadata.h>
+#include <google/protobuf/generated_message_reflection.h>
 #include <google/protobuf/message.h>
 #include <google/protobuf/repeated_field.h>  // IWYU pragma: export
 #include <google/protobuf/extension_set.h>  // IWYU pragma: export
@@ -59,7 +60,7 @@ struct PROTOC_EXPORT TableStruct_google_2fprotobuf_2fcompiler_2fplugin_2eproto {
   static const ::PROTOBUF_NAMESPACE_ID::internal::SerializationTable serialization_table[];
   static const ::PROTOBUF_NAMESPACE_ID::uint32 offsets[];
 };
-void PROTOC_EXPORT AddDescriptors_google_2fprotobuf_2fcompiler_2fplugin_2eproto();
+extern PROTOC_EXPORT const ::PROTOBUF_NAMESPACE_ID::internal::DescriptorTable descriptor_table_google_2fprotobuf_2fcompiler_2fplugin_2eproto;
 PROTOBUF_NAMESPACE_OPEN
 namespace compiler {
 class CodeGeneratorRequest;
@@ -120,7 +121,13 @@ class PROTOC_EXPORT Version :
   }
 
   static const ::PROTOBUF_NAMESPACE_ID::Descriptor* descriptor() {
-    return default_instance().GetDescriptor();
+    return GetDescriptor();
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Descriptor* GetDescriptor() {
+    return GetMetadataStatic().descriptor;
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Reflection* GetReflection() {
+    return GetMetadataStatic().reflection;
   }
   static const Version& default_instance();
 
@@ -185,6 +192,13 @@ class PROTOC_EXPORT Version :
   public:
 
   ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadata() const final;
+  private:
+  static ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadataStatic() {
+    ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&::descriptor_table_google_2fprotobuf_2fcompiler_2fplugin_2eproto);
+    return ::descriptor_table_google_2fprotobuf_2fcompiler_2fplugin_2eproto.file_level_metadata[kIndexInFileMessages];
+  }
+
+  public:
 
   // nested types ----------------------------------------------------
 
@@ -272,7 +286,13 @@ class PROTOC_EXPORT CodeGeneratorRequest :
   }
 
   static const ::PROTOBUF_NAMESPACE_ID::Descriptor* descriptor() {
-    return default_instance().GetDescriptor();
+    return GetDescriptor();
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Descriptor* GetDescriptor() {
+    return GetMetadataStatic().descriptor;
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Reflection* GetReflection() {
+    return GetMetadataStatic().reflection;
   }
   static const CodeGeneratorRequest& default_instance();
 
@@ -337,6 +357,13 @@ class PROTOC_EXPORT CodeGeneratorRequest :
   public:
 
   ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadata() const final;
+  private:
+  static ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadataStatic() {
+    ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&::descriptor_table_google_2fprotobuf_2fcompiler_2fplugin_2eproto);
+    return ::descriptor_table_google_2fprotobuf_2fcompiler_2fplugin_2eproto.file_level_metadata[kIndexInFileMessages];
+  }
+
+  public:
 
   // nested types ----------------------------------------------------
 
@@ -442,7 +469,13 @@ class PROTOC_EXPORT CodeGeneratorResponse_File :
   }
 
   static const ::PROTOBUF_NAMESPACE_ID::Descriptor* descriptor() {
-    return default_instance().GetDescriptor();
+    return GetDescriptor();
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Descriptor* GetDescriptor() {
+    return GetMetadataStatic().descriptor;
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Reflection* GetReflection() {
+    return GetMetadataStatic().reflection;
   }
   static const CodeGeneratorResponse_File& default_instance();
 
@@ -507,6 +540,13 @@ class PROTOC_EXPORT CodeGeneratorResponse_File :
   public:
 
   ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadata() const final;
+  private:
+  static ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadataStatic() {
+    ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&::descriptor_table_google_2fprotobuf_2fcompiler_2fplugin_2eproto);
+    return ::descriptor_table_google_2fprotobuf_2fcompiler_2fplugin_2eproto.file_level_metadata[kIndexInFileMessages];
+  }
+
+  public:
 
   // nested types ----------------------------------------------------
 
@@ -598,7 +638,13 @@ class PROTOC_EXPORT CodeGeneratorResponse :
   }
 
   static const ::PROTOBUF_NAMESPACE_ID::Descriptor* descriptor() {
-    return default_instance().GetDescriptor();
+    return GetDescriptor();
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Descriptor* GetDescriptor() {
+    return GetMetadataStatic().descriptor;
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Reflection* GetReflection() {
+    return GetMetadataStatic().reflection;
   }
   static const CodeGeneratorResponse& default_instance();
 
@@ -663,6 +709,13 @@ class PROTOC_EXPORT CodeGeneratorResponse :
   public:
 
   ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadata() const final;
+  private:
+  static ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadataStatic() {
+    ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&::descriptor_table_google_2fprotobuf_2fcompiler_2fplugin_2eproto);
+    return ::descriptor_table_google_2fprotobuf_2fcompiler_2fplugin_2eproto.file_level_metadata[kIndexInFileMessages];
+  }
+
+  public:
 
   // nested types ----------------------------------------------------
 

src/google/protobuf/compiler/scc.h

@@ -51,6 +51,9 @@ struct SCC {
   std::vector<const SCC*> children;
 
   const Descriptor* GetRepresentative() const { return descriptors[0]; }
+
+  // All messages must necessarily be in the same file.
+  const FileDescriptor* GetFile() const { return descriptors[0]->file(); }
 };
 
 // This class is used for analyzing the SCC for each message, to ensure linear

src/google/protobuf/descriptor.pb.h

@@ -27,6 +27,7 @@
 #include <google/protobuf/generated_message_util.h>
 #include <google/protobuf/inlined_string_field.h>
 #include <google/protobuf/metadata.h>
+#include <google/protobuf/generated_message_reflection.h>
 #include <google/protobuf/message.h>
 #include <google/protobuf/repeated_field.h>  // IWYU pragma: export
 #include <google/protobuf/extension_set.h>  // IWYU pragma: export
@@ -53,7 +54,7 @@ struct PROTOBUF_EXPORT TableStruct_google_2fprotobuf_2fdescriptor_2eproto {
   static const ::PROTOBUF_NAMESPACE_ID::internal::SerializationTable serialization_table[];
   static const ::PROTOBUF_NAMESPACE_ID::uint32 offsets[];
 };
-void PROTOBUF_EXPORT AddDescriptors_google_2fprotobuf_2fdescriptor_2eproto();
+extern PROTOBUF_EXPORT const ::PROTOBUF_NAMESPACE_ID::internal::DescriptorTable descriptor_table_google_2fprotobuf_2fdescriptor_2eproto;
 PROTOBUF_NAMESPACE_OPEN
 class DescriptorProto;
 class DescriptorProtoDefaultTypeInternal;
@@ -368,7 +369,13 @@ class PROTOBUF_EXPORT FileDescriptorSet :
     return MaybeArenaPtr();
   }
   static const ::PROTOBUF_NAMESPACE_ID::Descriptor* descriptor() {
-    return default_instance().GetDescriptor();
+    return GetDescriptor();
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Descriptor* GetDescriptor() {
+    return GetMetadataStatic().descriptor;
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Reflection* GetReflection() {
+    return GetMetadataStatic().reflection;
   }
   static const FileDescriptorSet& default_instance();
 
@@ -439,6 +446,13 @@ class PROTOBUF_EXPORT FileDescriptorSet :
   public:
 
   ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadata() const final;
+  private:
+  static ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadataStatic() {
+    ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&::descriptor_table_google_2fprotobuf_2fdescriptor_2eproto);
+    return ::descriptor_table_google_2fprotobuf_2fdescriptor_2eproto.file_level_metadata[kIndexInFileMessages];
+  }
+
+  public:
 
   // nested types ----------------------------------------------------
 
@@ -510,7 +524,13 @@ class PROTOBUF_EXPORT FileDescriptorProto :
     return MaybeArenaPtr();
   }
   static const ::PROTOBUF_NAMESPACE_ID::Descriptor* descriptor() {
-    return default_instance().GetDescriptor();
+    return GetDescriptor();
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Descriptor* GetDescriptor() {
+    return GetMetadataStatic().descriptor;
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Reflection* GetReflection() {
+    return GetMetadataStatic().reflection;
   }
   static const FileDescriptorProto& default_instance();
 
@@ -581,6 +601,13 @@ class PROTOBUF_EXPORT FileDescriptorProto :
   public:
 
   ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadata() const final;
+  private:
+  static ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadataStatic() {
+    ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&::descriptor_table_google_2fprotobuf_2fdescriptor_2eproto);
+    return ::descriptor_table_google_2fprotobuf_2fdescriptor_2eproto.file_level_metadata[kIndexInFileMessages];
+  }
+
+  public:
 
   // nested types ----------------------------------------------------
 
@@ -831,7 +858,13 @@ class PROTOBUF_EXPORT DescriptorProto_ExtensionRange :
     return MaybeArenaPtr();
   }
   static const ::PROTOBUF_NAMESPACE_ID::Descriptor* descriptor() {
-    return default_instance().GetDescriptor();
+    return GetDescriptor();
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Descriptor* GetDescriptor() {
+    return GetMetadataStatic().descriptor;
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Reflection* GetReflection() {
+    return GetMetadataStatic().reflection;
   }
   static const DescriptorProto_ExtensionRange& default_instance();
 
@@ -902,6 +935,13 @@ class PROTOBUF_EXPORT DescriptorProto_ExtensionRange :
   public:
 
   ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadata() const final;
+  private:
+  static ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadataStatic() {
+    ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&::descriptor_table_google_2fprotobuf_2fdescriptor_2eproto);
+    return ::descriptor_table_google_2fprotobuf_2fdescriptor_2eproto.file_level_metadata[kIndexInFileMessages];
+  }
+
+  public:
 
   // nested types ----------------------------------------------------
 
@@ -989,7 +1029,13 @@ class PROTOBUF_EXPORT DescriptorProto_ReservedRange :
     return MaybeArenaPtr();
   }
   static const ::PROTOBUF_NAMESPACE_ID::Descriptor* descriptor() {
-    return default_instance().GetDescriptor();
+    return GetDescriptor();
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Descriptor* GetDescriptor() {
+    return GetMetadataStatic().descriptor;
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Reflection* GetReflection() {
+    return GetMetadataStatic().reflection;
   }
   static const DescriptorProto_ReservedRange& default_instance();
 
@@ -1060,6 +1106,13 @@ class PROTOBUF_EXPORT DescriptorProto_ReservedRange :
   public:
 
   ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadata() const final;
+  private:
+  static ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadataStatic() {
+    ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&::descriptor_table_google_2fprotobuf_2fdescriptor_2eproto);
+    return ::descriptor_table_google_2fprotobuf_2fdescriptor_2eproto.file_level_metadata[kIndexInFileMessages];
+  }
+
+  public:
 
   // nested types ----------------------------------------------------
 
@@ -1134,7 +1187,13 @@ class PROTOBUF_EXPORT DescriptorProto :
     return MaybeArenaPtr();
   }
   static const ::PROTOBUF_NAMESPACE_ID::Descriptor* descriptor() {
-    return default_instance().GetDescriptor();
+    return GetDescriptor();
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Descriptor* GetDescriptor() {
+    return GetMetadataStatic().descriptor;
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Reflection* GetReflection() {
+    return GetMetadataStatic().reflection;
   }
   static const DescriptorProto& default_instance();
 
@@ -1205,6 +1264,13 @@ class PROTOBUF_EXPORT DescriptorProto :
   public:
 
   ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadata() const final;
+  private:
+  static ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadataStatic() {
+    ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&::descriptor_table_google_2fprotobuf_2fdescriptor_2eproto);
+    return ::descriptor_table_google_2fprotobuf_2fdescriptor_2eproto.file_level_metadata[kIndexInFileMessages];
+  }
+
+  public:
 
   // nested types ----------------------------------------------------
 
@@ -1412,7 +1478,13 @@ class PROTOBUF_EXPORT ExtensionRangeOptions :
     return MaybeArenaPtr();
   }
   static const ::PROTOBUF_NAMESPACE_ID::Descriptor* descriptor() {
-    return default_instance().GetDescriptor();
+    return GetDescriptor();
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Descriptor* GetDescriptor() {
+    return GetMetadataStatic().descriptor;
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Reflection* GetReflection() {
+    return GetMetadataStatic().reflection;
   }
   static const ExtensionRangeOptions& default_instance();
 
@@ -1483,6 +1555,13 @@ class PROTOBUF_EXPORT ExtensionRangeOptions :
   public:
 
   ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadata() const final;
+  private:
+  static ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadataStatic() {
+    ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&::descriptor_table_google_2fprotobuf_2fdescriptor_2eproto);
+    return ::descriptor_table_google_2fprotobuf_2fdescriptor_2eproto.file_level_metadata[kIndexInFileMessages];
+  }
+
+  public:
 
   // nested types ----------------------------------------------------
 
@@ -1557,7 +1636,13 @@ class PROTOBUF_EXPORT FieldDescriptorProto :
     return MaybeArenaPtr();
   }
   static const ::PROTOBUF_NAMESPACE_ID::Descriptor* descriptor() {
-    return default_instance().GetDescriptor();
+    return GetDescriptor();
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Descriptor* GetDescriptor() {
+    return GetMetadataStatic().descriptor;
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Reflection* GetReflection() {
+    return GetMetadataStatic().reflection;
   }
   static const FieldDescriptorProto& default_instance();
 
@@ -1628,6 +1713,13 @@ class PROTOBUF_EXPORT FieldDescriptorProto :
   public:
 
   ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadata() const final;
+  private:
+  static ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadataStatic() {
+    ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&::descriptor_table_google_2fprotobuf_2fdescriptor_2eproto);
+    return ::descriptor_table_google_2fprotobuf_2fdescriptor_2eproto.file_level_metadata[kIndexInFileMessages];
+  }
+
+  public:
 
   // nested types ----------------------------------------------------
 
@@ -1940,7 +2032,13 @@ class PROTOBUF_EXPORT OneofDescriptorProto :
     return MaybeArenaPtr();
   }
   static const ::PROTOBUF_NAMESPACE_ID::Descriptor* descriptor() {
-    return default_instance().GetDescriptor();
+    return GetDescriptor();
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Descriptor* GetDescriptor() {
+    return GetMetadataStatic().descriptor;
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Reflection* GetReflection() {
+    return GetMetadataStatic().reflection;
   }
   static const OneofDescriptorProto& default_instance();
 
@@ -2011,6 +2109,13 @@ class PROTOBUF_EXPORT OneofDescriptorProto :
   public:
 
   ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadata() const final;
+  private:
+  static ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadataStatic() {
+    ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&::descriptor_table_google_2fprotobuf_2fdescriptor_2eproto);
+    return ::descriptor_table_google_2fprotobuf_2fdescriptor_2eproto.file_level_metadata[kIndexInFileMessages];
+  }
+
+  public:
 
   // nested types ----------------------------------------------------
 
@@ -2105,7 +2210,13 @@ class PROTOBUF_EXPORT EnumDescriptorProto_EnumReservedRange :
     return MaybeArenaPtr();
   }
   static const ::PROTOBUF_NAMESPACE_ID::Descriptor* descriptor() {
-    return default_instance().GetDescriptor();
+    return GetDescriptor();
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Descriptor* GetDescriptor() {
+    return GetMetadataStatic().descriptor;
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Reflection* GetReflection() {
+    return GetMetadataStatic().reflection;
   }
   static const EnumDescriptorProto_EnumReservedRange& default_instance();
 
@@ -2176,6 +2287,13 @@ class PROTOBUF_EXPORT EnumDescriptorProto_EnumReservedRange :
   public:
 
   ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadata() const final;
+  private:
+  static ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadataStatic() {
+    ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&::descriptor_table_google_2fprotobuf_2fdescriptor_2eproto);
+    return ::descriptor_table_google_2fprotobuf_2fdescriptor_2eproto.file_level_metadata[kIndexInFileMessages];
+  }
+
+  public:
 
   // nested types ----------------------------------------------------
 
@@ -2250,7 +2368,13 @@ class PROTOBUF_EXPORT EnumDescriptorProto :
     return MaybeArenaPtr();
   }
   static const ::PROTOBUF_NAMESPACE_ID::Descriptor* descriptor() {
-    return default_instance().GetDescriptor();
+    return GetDescriptor();
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Descriptor* GetDescriptor() {
+    return GetMetadataStatic().descriptor;
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Reflection* GetReflection() {
+    return GetMetadataStatic().reflection;
   }
   static const EnumDescriptorProto& default_instance();
 
@@ -2321,6 +2445,13 @@ class PROTOBUF_EXPORT EnumDescriptorProto :
   public:
 
   ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadata() const final;
+  private:
+  static ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadataStatic() {
+    ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&::descriptor_table_google_2fprotobuf_2fdescriptor_2eproto);
+    return ::descriptor_table_google_2fprotobuf_2fdescriptor_2eproto.file_level_metadata[kIndexInFileMessages];
+  }
+
+  public:
 
   // nested types ----------------------------------------------------
 
@@ -2462,7 +2593,13 @@ class PROTOBUF_EXPORT EnumValueDescriptorProto :
     return MaybeArenaPtr();
   }
   static const ::PROTOBUF_NAMESPACE_ID::Descriptor* descriptor() {
-    return default_instance().GetDescriptor();
+    return GetDescriptor();
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Descriptor* GetDescriptor() {
+    return GetMetadataStatic().descriptor;
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Reflection* GetReflection() {
+    return GetMetadataStatic().reflection;
   }
   static const EnumValueDescriptorProto& default_instance();
 
@@ -2533,6 +2670,13 @@ class PROTOBUF_EXPORT EnumValueDescriptorProto :
   public:
 
   ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadata() const final;
+  private:
+  static ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadataStatic() {
+    ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&::descriptor_table_google_2fprotobuf_2fdescriptor_2eproto);
+    return ::descriptor_table_google_2fprotobuf_2fdescriptor_2eproto.file_level_metadata[kIndexInFileMessages];
+  }
+
+  public:
 
   // nested types ----------------------------------------------------
 
@@ -2635,7 +2779,13 @@ class PROTOBUF_EXPORT ServiceDescriptorProto :
     return MaybeArenaPtr();
   }
   static const ::PROTOBUF_NAMESPACE_ID::Descriptor* descriptor() {
-    return default_instance().GetDescriptor();
+    return GetDescriptor();
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Descriptor* GetDescriptor() {
+    return GetMetadataStatic().descriptor;
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Reflection* GetReflection() {
+    return GetMetadataStatic().reflection;
   }
   static const ServiceDescriptorProto& default_instance();
 
@@ -2706,6 +2856,13 @@ class PROTOBUF_EXPORT ServiceDescriptorProto :
   public:
 
   ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadata() const final;
+  private:
+  static ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadataStatic() {
+    ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&::descriptor_table_google_2fprotobuf_2fdescriptor_2eproto);
+    return ::descriptor_table_google_2fprotobuf_2fdescriptor_2eproto.file_level_metadata[kIndexInFileMessages];
+  }
+
+  public:
 
   // nested types ----------------------------------------------------
 
@@ -2813,7 +2970,13 @@ class PROTOBUF_EXPORT MethodDescriptorProto :
     return MaybeArenaPtr();
   }
   static const ::PROTOBUF_NAMESPACE_ID::Descriptor* descriptor() {
-    return default_instance().GetDescriptor();
+    return GetDescriptor();
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Descriptor* GetDescriptor() {
+    return GetMetadataStatic().descriptor;
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Reflection* GetReflection() {
+    return GetMetadataStatic().reflection;
   }
   static const MethodDescriptorProto& default_instance();
 
@@ -2884,6 +3047,13 @@ class PROTOBUF_EXPORT MethodDescriptorProto :
   public:
 
   ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadata() const final;
+  private:
+  static ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadataStatic() {
+    ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&::descriptor_table_google_2fprotobuf_2fdescriptor_2eproto);
+    return ::descriptor_table_google_2fprotobuf_2fdescriptor_2eproto.file_level_metadata[kIndexInFileMessages];
+  }
+
+  public:
 
   // nested types ----------------------------------------------------
 
@@ -3040,7 +3210,13 @@ class PROTOBUF_EXPORT FileOptions :
     return MaybeArenaPtr();
   }
   static const ::PROTOBUF_NAMESPACE_ID::Descriptor* descriptor() {
-    return default_instance().GetDescriptor();
+    return GetDescriptor();
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Descriptor* GetDescriptor() {
+    return GetMetadataStatic().descriptor;
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Reflection* GetReflection() {
+    return GetMetadataStatic().reflection;
   }
   static const FileOptions& default_instance();
 
@@ -3111,6 +3287,13 @@ class PROTOBUF_EXPORT FileOptions :
   public:
 
   ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadata() const final;
+  private:
+  static ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadataStatic() {
+    ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&::descriptor_table_google_2fprotobuf_2fdescriptor_2eproto);
+    return ::descriptor_table_google_2fprotobuf_2fdescriptor_2eproto.file_level_metadata[kIndexInFileMessages];
+  }
+
+  public:
 
   // nested types ----------------------------------------------------
 
@@ -3527,7 +3710,13 @@ class PROTOBUF_EXPORT MessageOptions :
     return MaybeArenaPtr();
   }
   static const ::PROTOBUF_NAMESPACE_ID::Descriptor* descriptor() {
-    return default_instance().GetDescriptor();
+    return GetDescriptor();
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Descriptor* GetDescriptor() {
+    return GetMetadataStatic().descriptor;
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Reflection* GetReflection() {
+    return GetMetadataStatic().reflection;
   }
   static const MessageOptions& default_instance();
 
@@ -3598,6 +3787,13 @@ class PROTOBUF_EXPORT MessageOptions :
   public:
 
   ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadata() const final;
+  private:
+  static ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadataStatic() {
+    ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&::descriptor_table_google_2fprotobuf_2fdescriptor_2eproto);
+    return ::descriptor_table_google_2fprotobuf_2fdescriptor_2eproto.file_level_metadata[kIndexInFileMessages];
+  }
+
+  public:
 
   // nested types ----------------------------------------------------
 
@@ -3704,7 +3900,13 @@ class PROTOBUF_EXPORT FieldOptions :
     return MaybeArenaPtr();
   }
   static const ::PROTOBUF_NAMESPACE_ID::Descriptor* descriptor() {
-    return default_instance().GetDescriptor();
+    return GetDescriptor();
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Descriptor* GetDescriptor() {
+    return GetMetadataStatic().descriptor;
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Reflection* GetReflection() {
+    return GetMetadataStatic().reflection;
   }
   static const FieldOptions& default_instance();
 
@@ -3775,6 +3977,13 @@ class PROTOBUF_EXPORT FieldOptions :
   public:
 
   ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadata() const final;
+  private:
+  static ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadataStatic() {
+    ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&::descriptor_table_google_2fprotobuf_2fdescriptor_2eproto);
+    return ::descriptor_table_google_2fprotobuf_2fdescriptor_2eproto.file_level_metadata[kIndexInFileMessages];
+  }
+
+  public:
 
   // nested types ----------------------------------------------------
 
@@ -3961,7 +4170,13 @@ class PROTOBUF_EXPORT OneofOptions :
     return MaybeArenaPtr();
   }
   static const ::PROTOBUF_NAMESPACE_ID::Descriptor* descriptor() {
-    return default_instance().GetDescriptor();
+    return GetDescriptor();
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Descriptor* GetDescriptor() {
+    return GetMetadataStatic().descriptor;
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Reflection* GetReflection() {
+    return GetMetadataStatic().reflection;
   }
   static const OneofOptions& default_instance();
 
@@ -4032,6 +4247,13 @@ class PROTOBUF_EXPORT OneofOptions :
   public:
 
   ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadata() const final;
+  private:
+  static ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadataStatic() {
+    ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&::descriptor_table_google_2fprotobuf_2fdescriptor_2eproto);
+    return ::descriptor_table_google_2fprotobuf_2fdescriptor_2eproto.file_level_metadata[kIndexInFileMessages];
+  }
+
+  public:
 
   // nested types ----------------------------------------------------
 
@@ -4106,7 +4328,13 @@ class PROTOBUF_EXPORT EnumOptions :
     return MaybeArenaPtr();
   }
   static const ::PROTOBUF_NAMESPACE_ID::Descriptor* descriptor() {
-    return default_instance().GetDescriptor();
+    return GetDescriptor();
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Descriptor* GetDescriptor() {
+    return GetMetadataStatic().descriptor;
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Reflection* GetReflection() {
+    return GetMetadataStatic().reflection;
   }
   static const EnumOptions& default_instance();
 
@@ -4177,6 +4405,13 @@ class PROTOBUF_EXPORT EnumOptions :
   public:
 
   ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadata() const final;
+  private:
+  static ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadataStatic() {
+    ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&::descriptor_table_google_2fprotobuf_2fdescriptor_2eproto);
+    return ::descriptor_table_google_2fprotobuf_2fdescriptor_2eproto.file_level_metadata[kIndexInFileMessages];
+  }
+
+  public:
 
   // nested types ----------------------------------------------------
 
@@ -4267,7 +4502,13 @@ class PROTOBUF_EXPORT EnumValueOptions :
     return MaybeArenaPtr();
   }
   static const ::PROTOBUF_NAMESPACE_ID::Descriptor* descriptor() {
-    return default_instance().GetDescriptor();
+    return GetDescriptor();
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Descriptor* GetDescriptor() {
+    return GetMetadataStatic().descriptor;
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Reflection* GetReflection() {
+    return GetMetadataStatic().reflection;
   }
   static const EnumValueOptions& default_instance();
 
@@ -4338,6 +4579,13 @@ class PROTOBUF_EXPORT EnumValueOptions :
   public:
 
   ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadata() const final;
+  private:
+  static ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadataStatic() {
+    ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&::descriptor_table_google_2fprotobuf_2fdescriptor_2eproto);
+    return ::descriptor_table_google_2fprotobuf_2fdescriptor_2eproto.file_level_metadata[kIndexInFileMessages];
+  }
+
+  public:
 
   // nested types ----------------------------------------------------
 
@@ -4420,7 +4668,13 @@ class PROTOBUF_EXPORT ServiceOptions :
     return MaybeArenaPtr();
   }
   static const ::PROTOBUF_NAMESPACE_ID::Descriptor* descriptor() {
-    return default_instance().GetDescriptor();
+    return GetDescriptor();
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Descriptor* GetDescriptor() {
+    return GetMetadataStatic().descriptor;
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Reflection* GetReflection() {
+    return GetMetadataStatic().reflection;
   }
   static const ServiceOptions& default_instance();
 
@@ -4491,6 +4745,13 @@ class PROTOBUF_EXPORT ServiceOptions :
   public:
 
   ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadata() const final;
+  private:
+  static ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadataStatic() {
+    ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&::descriptor_table_google_2fprotobuf_2fdescriptor_2eproto);
+    return ::descriptor_table_google_2fprotobuf_2fdescriptor_2eproto.file_level_metadata[kIndexInFileMessages];
+  }
+
+  public:
 
   // nested types ----------------------------------------------------
 
@@ -4573,7 +4834,13 @@ class PROTOBUF_EXPORT MethodOptions :
     return MaybeArenaPtr();
   }
   static const ::PROTOBUF_NAMESPACE_ID::Descriptor* descriptor() {
-    return default_instance().GetDescriptor();
+    return GetDescriptor();
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Descriptor* GetDescriptor() {
+    return GetMetadataStatic().descriptor;
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Reflection* GetReflection() {
+    return GetMetadataStatic().reflection;
   }
   static const MethodOptions& default_instance();
 
@@ -4644,6 +4911,13 @@ class PROTOBUF_EXPORT MethodOptions :
   public:
 
   ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadata() const final;
+  private:
+  static ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadataStatic() {
+    ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&::descriptor_table_google_2fprotobuf_2fdescriptor_2eproto);
+    return ::descriptor_table_google_2fprotobuf_2fdescriptor_2eproto.file_level_metadata[kIndexInFileMessages];
+  }
+
+  public:
 
   // nested types ----------------------------------------------------
 
@@ -4766,7 +5040,13 @@ class PROTOBUF_EXPORT UninterpretedOption_NamePart :
     return MaybeArenaPtr();
   }
   static const ::PROTOBUF_NAMESPACE_ID::Descriptor* descriptor() {
-    return default_instance().GetDescriptor();
+    return GetDescriptor();
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Descriptor* GetDescriptor() {
+    return GetMetadataStatic().descriptor;
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Reflection* GetReflection() {
+    return GetMetadataStatic().reflection;
   }
   static const UninterpretedOption_NamePart& default_instance();
 
@@ -4837,6 +5117,13 @@ class PROTOBUF_EXPORT UninterpretedOption_NamePart :
   public:
 
   ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadata() const final;
+  private:
+  static ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadataStatic() {
+    ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&::descriptor_table_google_2fprotobuf_2fdescriptor_2eproto);
+    return ::descriptor_table_google_2fprotobuf_2fdescriptor_2eproto.file_level_metadata[kIndexInFileMessages];
+  }
+
+  public:
 
   // nested types ----------------------------------------------------
 
@@ -4929,7 +5216,13 @@ class PROTOBUF_EXPORT UninterpretedOption :
     return MaybeArenaPtr();
   }
   static const ::PROTOBUF_NAMESPACE_ID::Descriptor* descriptor() {
-    return default_instance().GetDescriptor();
+    return GetDescriptor();
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Descriptor* GetDescriptor() {
+    return GetMetadataStatic().descriptor;
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Reflection* GetReflection() {
+    return GetMetadataStatic().reflection;
   }
   static const UninterpretedOption& default_instance();
 
@@ -5000,6 +5293,13 @@ class PROTOBUF_EXPORT UninterpretedOption :
   public:
 
   ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadata() const final;
+  private:
+  static ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadataStatic() {
+    ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&::descriptor_table_google_2fprotobuf_2fdescriptor_2eproto);
+    return ::descriptor_table_google_2fprotobuf_2fdescriptor_2eproto.file_level_metadata[kIndexInFileMessages];
+  }
+
+  public:
 
   // nested types ----------------------------------------------------
 
@@ -5166,7 +5466,13 @@ class PROTOBUF_EXPORT SourceCodeInfo_Location :
     return MaybeArenaPtr();
   }
   static const ::PROTOBUF_NAMESPACE_ID::Descriptor* descriptor() {
-    return default_instance().GetDescriptor();
+    return GetDescriptor();
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Descriptor* GetDescriptor() {
+    return GetMetadataStatic().descriptor;
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Reflection* GetReflection() {
+    return GetMetadataStatic().reflection;
   }
   static const SourceCodeInfo_Location& default_instance();
 
@@ -5237,6 +5543,13 @@ class PROTOBUF_EXPORT SourceCodeInfo_Location :
   public:
 
   ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadata() const final;
+  private:
+  static ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadataStatic() {
+    ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&::descriptor_table_google_2fprotobuf_2fdescriptor_2eproto);
+    return ::descriptor_table_google_2fprotobuf_2fdescriptor_2eproto.file_level_metadata[kIndexInFileMessages];
+  }
+
+  public:
 
   // nested types ----------------------------------------------------
 
@@ -5388,7 +5701,13 @@ class PROTOBUF_EXPORT SourceCodeInfo :
     return MaybeArenaPtr();
   }
   static const ::PROTOBUF_NAMESPACE_ID::Descriptor* descriptor() {
-    return default_instance().GetDescriptor();
+    return GetDescriptor();
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Descriptor* GetDescriptor() {
+    return GetMetadataStatic().descriptor;
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Reflection* GetReflection() {
+    return GetMetadataStatic().reflection;
   }
   static const SourceCodeInfo& default_instance();
 
@@ -5459,6 +5778,13 @@ class PROTOBUF_EXPORT SourceCodeInfo :
   public:
 
   ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadata() const final;
+  private:
+  static ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadataStatic() {
+    ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&::descriptor_table_google_2fprotobuf_2fdescriptor_2eproto);
+    return ::descriptor_table_google_2fprotobuf_2fdescriptor_2eproto.file_level_metadata[kIndexInFileMessages];
+  }
+
+  public:
 
   // nested types ----------------------------------------------------
 
@@ -5532,7 +5858,13 @@ class PROTOBUF_EXPORT GeneratedCodeInfo_Annotation :
     return MaybeArenaPtr();
   }
   static const ::PROTOBUF_NAMESPACE_ID::Descriptor* descriptor() {
-    return default_instance().GetDescriptor();
+    return GetDescriptor();
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Descriptor* GetDescriptor() {
+    return GetMetadataStatic().descriptor;
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Reflection* GetReflection() {
+    return GetMetadataStatic().reflection;
   }
   static const GeneratedCodeInfo_Annotation& default_instance();
 
@@ -5603,6 +5935,13 @@ class PROTOBUF_EXPORT GeneratedCodeInfo_Annotation :
   public:
 
   ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadata() const final;
+  private:
+  static ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadataStatic() {
+    ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&::descriptor_table_google_2fprotobuf_2fdescriptor_2eproto);
+    return ::descriptor_table_google_2fprotobuf_2fdescriptor_2eproto.file_level_metadata[kIndexInFileMessages];
+  }
+
+  public:
 
   // nested types ----------------------------------------------------
 
@@ -5714,7 +6053,13 @@ class PROTOBUF_EXPORT GeneratedCodeInfo :
     return MaybeArenaPtr();
   }
   static const ::PROTOBUF_NAMESPACE_ID::Descriptor* descriptor() {
-    return default_instance().GetDescriptor();
+    return GetDescriptor();
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Descriptor* GetDescriptor() {
+    return GetMetadataStatic().descriptor;
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Reflection* GetReflection() {
+    return GetMetadataStatic().reflection;
   }
   static const GeneratedCodeInfo& default_instance();
 
@@ -5785,6 +6130,13 @@ class PROTOBUF_EXPORT GeneratedCodeInfo :
   public:
 
   ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadata() const final;
+  private:
+  static ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadataStatic() {
+    ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&::descriptor_table_google_2fprotobuf_2fdescriptor_2eproto);
+    return ::descriptor_table_google_2fprotobuf_2fdescriptor_2eproto.file_level_metadata[kIndexInFileMessages];
+  }
+
+  public:
 
   // nested types ----------------------------------------------------
 

src/google/protobuf/duration.pb.cc

@@ -15,14 +15,13 @@
 #include <google/protobuf/wire_format.h>
 // @@protoc_insertion_point(includes)
 #include <google/protobuf/port_def.inc>
-
 PROTOBUF_NAMESPACE_OPEN
 class DurationDefaultTypeInternal {
  public:
   ::PROTOBUF_NAMESPACE_ID::internal::ExplicitlyConstructed<Duration> _instance;
 } _Duration_default_instance_;
 PROTOBUF_NAMESPACE_CLOSE
-static void InitDefaultsDuration_google_2fprotobuf_2fduration_2eproto() {
+static void InitDefaultsscc_info_Duration_google_2fprotobuf_2fduration_2eproto() {
   GOOGLE_PROTOBUF_VERIFY_VERSION;
 
   {
@@ -34,7 +33,7 @@ static void InitDefaultsDuration_google_2fprotobuf_2fduration_2eproto() {
 }
 
 PROTOBUF_EXPORT ::PROTOBUF_NAMESPACE_ID::internal::SCCInfo<0> scc_info_Duration_google_2fprotobuf_2fduration_2eproto =
-    {{ATOMIC_VAR_INIT(::PROTOBUF_NAMESPACE_ID::internal::SCCInfoBase::kUninitialized), 0, InitDefaultsDuration_google_2fprotobuf_2fduration_2eproto}, {}};
+    {{ATOMIC_VAR_INIT(::PROTOBUF_NAMESPACE_ID::internal::SCCInfoBase::kUninitialized), 0, InitDefaultsscc_info_Duration_google_2fprotobuf_2fduration_2eproto}, {}};
 
 static ::PROTOBUF_NAMESPACE_ID::Metadata file_level_metadata_google_2fprotobuf_2fduration_2eproto[1];
 static constexpr ::PROTOBUF_NAMESPACE_ID::EnumDescriptor const** file_level_enum_descriptors_google_2fprotobuf_2fduration_2eproto = nullptr;
@@ -65,24 +64,22 @@ const char descriptor_table_protodef_google_2fprotobuf_2fduration_2eproto[] =
   "f/ptypes/duration\370\001\001\242\002\003GPB\252\002\036Google.Prot"
   "obuf.WellKnownTypesb\006proto3"
   ;
+static const ::PROTOBUF_NAMESPACE_ID::internal::DescriptorTable*const descriptor_table_google_2fprotobuf_2fduration_2eproto_deps[1] = {
+};
+static ::PROTOBUF_NAMESPACE_ID::internal::SCCInfoBase*const descriptor_table_google_2fprotobuf_2fduration_2eproto_sccs[1] = {
+  &scc_info_Duration_google_2fprotobuf_2fduration_2eproto.base,
+};
 static ::PROTOBUF_NAMESPACE_ID::internal::once_flag descriptor_table_google_2fprotobuf_2fduration_2eproto_once;
-static ::PROTOBUF_NAMESPACE_ID::internal::DescriptorTable descriptor_table_google_2fprotobuf_2fduration_2eproto = {
-  false, descriptor_table_protodef_google_2fprotobuf_2fduration_2eproto, "google/protobuf/duration.proto", 227,
-  &descriptor_table_google_2fprotobuf_2fduration_2eproto_once, AddDescriptors_google_2fprotobuf_2fduration_2eproto, schemas,
-  file_default_instances, TableStruct_google_2fprotobuf_2fduration_2eproto::offsets,
+static bool descriptor_table_google_2fprotobuf_2fduration_2eproto_initialized = false;
+const ::PROTOBUF_NAMESPACE_ID::internal::DescriptorTable descriptor_table_google_2fprotobuf_2fduration_2eproto = {
+  &descriptor_table_google_2fprotobuf_2fduration_2eproto_initialized, descriptor_table_protodef_google_2fprotobuf_2fduration_2eproto, "google/protobuf/duration.proto", 227,
+  &descriptor_table_google_2fprotobuf_2fduration_2eproto_once, descriptor_table_google_2fprotobuf_2fduration_2eproto_sccs, descriptor_table_google_2fprotobuf_2fduration_2eproto_deps, 1, 0,
+  schemas, file_default_instances, TableStruct_google_2fprotobuf_2fduration_2eproto::offsets,
   file_level_metadata_google_2fprotobuf_2fduration_2eproto, 1, file_level_enum_descriptors_google_2fprotobuf_2fduration_2eproto, file_level_service_descriptors_google_2fprotobuf_2fduration_2eproto,
 };
 
-void AddDescriptors_google_2fprotobuf_2fduration_2eproto() {
-  static constexpr ::PROTOBUF_NAMESPACE_ID::internal::InitFunc deps[1] =
-  {
-  };
-  ::PROTOBUF_NAMESPACE_ID::internal::InitSCC(&scc_info_Duration_google_2fprotobuf_2fduration_2eproto.base);
- ::PROTOBUF_NAMESPACE_ID::internal::AddDescriptors(&descriptor_table_google_2fprotobuf_2fduration_2eproto, deps, 0);
-}
-
 // Force running AddDescriptors() at dynamic initialization time.
-static bool dynamic_init_dummy_google_2fprotobuf_2fduration_2eproto = []() { AddDescriptors_google_2fprotobuf_2fduration_2eproto(); return true; }();
+static bool dynamic_init_dummy_google_2fprotobuf_2fduration_2eproto = (  ::PROTOBUF_NAMESPACE_ID::internal::AddDescriptors(&descriptor_table_google_2fprotobuf_2fduration_2eproto), true);
 PROTOBUF_NAMESPACE_OPEN
 
 // ===================================================================
@@ -416,8 +413,7 @@ void Duration::InternalSwap(Duration* other) {
 }
 
 ::PROTOBUF_NAMESPACE_ID::Metadata Duration::GetMetadata() const {
-  ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&::descriptor_table_google_2fprotobuf_2fduration_2eproto);
-  return ::file_level_metadata_google_2fprotobuf_2fduration_2eproto[kIndexInFileMessages];
+  return GetMetadataStatic();
 }
 
 

src/google/protobuf/duration.pb.h

@@ -27,6 +27,7 @@
 #include <google/protobuf/generated_message_util.h>
 #include <google/protobuf/inlined_string_field.h>
 #include <google/protobuf/metadata.h>
+#include <google/protobuf/generated_message_reflection.h>
 #include <google/protobuf/message.h>
 #include <google/protobuf/repeated_field.h>  // IWYU pragma: export
 #include <google/protobuf/extension_set.h>  // IWYU pragma: export
@@ -52,7 +53,7 @@ struct PROTOBUF_EXPORT TableStruct_google_2fprotobuf_2fduration_2eproto {
   static const ::PROTOBUF_NAMESPACE_ID::internal::SerializationTable serialization_table[];
   static const ::PROTOBUF_NAMESPACE_ID::uint32 offsets[];
 };
-void PROTOBUF_EXPORT AddDescriptors_google_2fprotobuf_2fduration_2eproto();
+extern PROTOBUF_EXPORT const ::PROTOBUF_NAMESPACE_ID::internal::DescriptorTable descriptor_table_google_2fprotobuf_2fduration_2eproto;
 PROTOBUF_NAMESPACE_OPEN
 class Duration;
 class DurationDefaultTypeInternal;
@@ -97,7 +98,13 @@ class PROTOBUF_EXPORT Duration :
     return MaybeArenaPtr();
   }
   static const ::PROTOBUF_NAMESPACE_ID::Descriptor* descriptor() {
-    return default_instance().GetDescriptor();
+    return GetDescriptor();
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Descriptor* GetDescriptor() {
+    return GetMetadataStatic().descriptor;
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Reflection* GetReflection() {
+    return GetMetadataStatic().reflection;
   }
   static const Duration& default_instance();
 
@@ -168,6 +175,13 @@ class PROTOBUF_EXPORT Duration :
   public:
 
   ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadata() const final;
+  private:
+  static ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadataStatic() {
+    ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&::descriptor_table_google_2fprotobuf_2fduration_2eproto);
+    return ::descriptor_table_google_2fprotobuf_2fduration_2eproto.file_level_metadata[kIndexInFileMessages];
+  }
+
+  public:
 
   // nested types ----------------------------------------------------
 

src/google/protobuf/empty.pb.cc

@@ -15,14 +15,13 @@
 #include <google/protobuf/wire_format.h>
 // @@protoc_insertion_point(includes)
 #include <google/protobuf/port_def.inc>
-
 PROTOBUF_NAMESPACE_OPEN
 class EmptyDefaultTypeInternal {
  public:
   ::PROTOBUF_NAMESPACE_ID::internal::ExplicitlyConstructed<Empty> _instance;
 } _Empty_default_instance_;
 PROTOBUF_NAMESPACE_CLOSE
-static void InitDefaultsEmpty_google_2fprotobuf_2fempty_2eproto() {
+static void InitDefaultsscc_info_Empty_google_2fprotobuf_2fempty_2eproto() {
   GOOGLE_PROTOBUF_VERIFY_VERSION;
 
   {
@@ -34,7 +33,7 @@ static void InitDefaultsEmpty_google_2fprotobuf_2fempty_2eproto() {
 }
 
 PROTOBUF_EXPORT ::PROTOBUF_NAMESPACE_ID::internal::SCCInfo<0> scc_info_Empty_google_2fprotobuf_2fempty_2eproto =
-    {{ATOMIC_VAR_INIT(::PROTOBUF_NAMESPACE_ID::internal::SCCInfoBase::kUninitialized), 0, InitDefaultsEmpty_google_2fprotobuf_2fempty_2eproto}, {}};
+    {{ATOMIC_VAR_INIT(::PROTOBUF_NAMESPACE_ID::internal::SCCInfoBase::kUninitialized), 0, InitDefaultsscc_info_Empty_google_2fprotobuf_2fempty_2eproto}, {}};
 
 static ::PROTOBUF_NAMESPACE_ID::Metadata file_level_metadata_google_2fprotobuf_2fempty_2eproto[1];
 static constexpr ::PROTOBUF_NAMESPACE_ID::EnumDescriptor const** file_level_enum_descriptors_google_2fprotobuf_2fempty_2eproto = nullptr;
@@ -62,24 +61,22 @@ const char descriptor_table_protodef_google_2fprotobuf_2fempty_2eproto[] =
   "/ptypes/empty\370\001\001\242\002\003GPB\252\002\036Google.Protobuf"
   ".WellKnownTypesb\006proto3"
   ;
+static const ::PROTOBUF_NAMESPACE_ID::internal::DescriptorTable*const descriptor_table_google_2fprotobuf_2fempty_2eproto_deps[1] = {
+};
+static ::PROTOBUF_NAMESPACE_ID::internal::SCCInfoBase*const descriptor_table_google_2fprotobuf_2fempty_2eproto_sccs[1] = {
+  &scc_info_Empty_google_2fprotobuf_2fempty_2eproto.base,
+};
 static ::PROTOBUF_NAMESPACE_ID::internal::once_flag descriptor_table_google_2fprotobuf_2fempty_2eproto_once;
-static ::PROTOBUF_NAMESPACE_ID::internal::DescriptorTable descriptor_table_google_2fprotobuf_2fempty_2eproto = {
-  false, descriptor_table_protodef_google_2fprotobuf_2fempty_2eproto, "google/protobuf/empty.proto", 183,
-  &descriptor_table_google_2fprotobuf_2fempty_2eproto_once, AddDescriptors_google_2fprotobuf_2fempty_2eproto, schemas,
-  file_default_instances, TableStruct_google_2fprotobuf_2fempty_2eproto::offsets,
+static bool descriptor_table_google_2fprotobuf_2fempty_2eproto_initialized = false;
+const ::PROTOBUF_NAMESPACE_ID::internal::DescriptorTable descriptor_table_google_2fprotobuf_2fempty_2eproto = {
+  &descriptor_table_google_2fprotobuf_2fempty_2eproto_initialized, descriptor_table_protodef_google_2fprotobuf_2fempty_2eproto, "google/protobuf/empty.proto", 183,
+  &descriptor_table_google_2fprotobuf_2fempty_2eproto_once, descriptor_table_google_2fprotobuf_2fempty_2eproto_sccs, descriptor_table_google_2fprotobuf_2fempty_2eproto_deps, 1, 0,
+  schemas, file_default_instances, TableStruct_google_2fprotobuf_2fempty_2eproto::offsets,
   file_level_metadata_google_2fprotobuf_2fempty_2eproto, 1, file_level_enum_descriptors_google_2fprotobuf_2fempty_2eproto, file_level_service_descriptors_google_2fprotobuf_2fempty_2eproto,
 };
 
-void AddDescriptors_google_2fprotobuf_2fempty_2eproto() {
-  static constexpr ::PROTOBUF_NAMESPACE_ID::internal::InitFunc deps[1] =
-  {
-  };
-  ::PROTOBUF_NAMESPACE_ID::internal::InitSCC(&scc_info_Empty_google_2fprotobuf_2fempty_2eproto.base);
- ::PROTOBUF_NAMESPACE_ID::internal::AddDescriptors(&descriptor_table_google_2fprotobuf_2fempty_2eproto, deps, 0);
-}
-
 // Force running AddDescriptors() at dynamic initialization time.
-static bool dynamic_init_dummy_google_2fprotobuf_2fempty_2eproto = []() { AddDescriptors_google_2fprotobuf_2fempty_2eproto(); return true; }();
+static bool dynamic_init_dummy_google_2fprotobuf_2fempty_2eproto = (  ::PROTOBUF_NAMESPACE_ID::internal::AddDescriptors(&descriptor_table_google_2fprotobuf_2fempty_2eproto), true);
 PROTOBUF_NAMESPACE_OPEN
 
 // ===================================================================
@@ -314,8 +311,7 @@ void Empty::InternalSwap(Empty* other) {
 }
 
 ::PROTOBUF_NAMESPACE_ID::Metadata Empty::GetMetadata() const {
-  ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&::descriptor_table_google_2fprotobuf_2fempty_2eproto);
-  return ::file_level_metadata_google_2fprotobuf_2fempty_2eproto[kIndexInFileMessages];
+  return GetMetadataStatic();
 }
 
 

src/google/protobuf/empty.pb.h

@@ -27,6 +27,7 @@
 #include <google/protobuf/generated_message_util.h>
 #include <google/protobuf/inlined_string_field.h>
 #include <google/protobuf/metadata.h>
+#include <google/protobuf/generated_message_reflection.h>
 #include <google/protobuf/message.h>
 #include <google/protobuf/repeated_field.h>  // IWYU pragma: export
 #include <google/protobuf/extension_set.h>  // IWYU pragma: export
@@ -52,7 +53,7 @@ struct PROTOBUF_EXPORT TableStruct_google_2fprotobuf_2fempty_2eproto {
   static const ::PROTOBUF_NAMESPACE_ID::internal::SerializationTable serialization_table[];
   static const ::PROTOBUF_NAMESPACE_ID::uint32 offsets[];
 };
-void PROTOBUF_EXPORT AddDescriptors_google_2fprotobuf_2fempty_2eproto();
+extern PROTOBUF_EXPORT const ::PROTOBUF_NAMESPACE_ID::internal::DescriptorTable descriptor_table_google_2fprotobuf_2fempty_2eproto;
 PROTOBUF_NAMESPACE_OPEN
 class Empty;
 class EmptyDefaultTypeInternal;
@@ -97,7 +98,13 @@ class PROTOBUF_EXPORT Empty :
     return MaybeArenaPtr();
   }
   static const ::PROTOBUF_NAMESPACE_ID::Descriptor* descriptor() {
-    return default_instance().GetDescriptor();
+    return GetDescriptor();
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Descriptor* GetDescriptor() {
+    return GetMetadataStatic().descriptor;
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Reflection* GetReflection() {
+    return GetMetadataStatic().reflection;
   }
   static const Empty& default_instance();
 
@@ -168,6 +175,13 @@ class PROTOBUF_EXPORT Empty :
   public:
 
   ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadata() const final;
+  private:
+  static ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadataStatic() {
+    ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&::descriptor_table_google_2fprotobuf_2fempty_2eproto);
+    return ::descriptor_table_google_2fprotobuf_2fempty_2eproto.file_level_metadata[kIndexInFileMessages];
+  }
+
+  public:
 
   // nested types ----------------------------------------------------
 

src/google/protobuf/field_mask.pb.cc

@@ -15,14 +15,13 @@
 #include <google/protobuf/wire_format.h>
 // @@protoc_insertion_point(includes)
 #include <google/protobuf/port_def.inc>
-
 PROTOBUF_NAMESPACE_OPEN
 class FieldMaskDefaultTypeInternal {
  public:
   ::PROTOBUF_NAMESPACE_ID::internal::ExplicitlyConstructed<FieldMask> _instance;
 } _FieldMask_default_instance_;
 PROTOBUF_NAMESPACE_CLOSE
-static void InitDefaultsFieldMask_google_2fprotobuf_2ffield_5fmask_2eproto() {
+static void InitDefaultsscc_info_FieldMask_google_2fprotobuf_2ffield_5fmask_2eproto() {
   GOOGLE_PROTOBUF_VERIFY_VERSION;
 
   {
@@ -34,7 +33,7 @@ static void InitDefaultsFieldMask_google_2fprotobuf_2ffield_5fmask_2eproto() {
 }
 
 PROTOBUF_EXPORT ::PROTOBUF_NAMESPACE_ID::internal::SCCInfo<0> scc_info_FieldMask_google_2fprotobuf_2ffield_5fmask_2eproto =
-    {{ATOMIC_VAR_INIT(::PROTOBUF_NAMESPACE_ID::internal::SCCInfoBase::kUninitialized), 0, InitDefaultsFieldMask_google_2fprotobuf_2ffield_5fmask_2eproto}, {}};
+    {{ATOMIC_VAR_INIT(::PROTOBUF_NAMESPACE_ID::internal::SCCInfoBase::kUninitialized), 0, InitDefaultsscc_info_FieldMask_google_2fprotobuf_2ffield_5fmask_2eproto}, {}};
 
 static ::PROTOBUF_NAMESPACE_ID::Metadata file_level_metadata_google_2fprotobuf_2ffield_5fmask_2eproto[1];
 static constexpr ::PROTOBUF_NAMESPACE_ID::EnumDescriptor const** file_level_enum_descriptors_google_2fprotobuf_2ffield_5fmask_2eproto = nullptr;
@@ -64,24 +63,22 @@ const char descriptor_table_protodef_google_2fprotobuf_2ffield_5fmask_2eproto[]
   "ield_mask;field_mask\370\001\001\242\002\003GPB\252\002\036Google.P"
   "rotobuf.WellKnownTypesb\006proto3"
   ;
+static const ::PROTOBUF_NAMESPACE_ID::internal::DescriptorTable*const descriptor_table_google_2fprotobuf_2ffield_5fmask_2eproto_deps[1] = {
+};
+static ::PROTOBUF_NAMESPACE_ID::internal::SCCInfoBase*const descriptor_table_google_2fprotobuf_2ffield_5fmask_2eproto_sccs[1] = {
+  &scc_info_FieldMask_google_2fprotobuf_2ffield_5fmask_2eproto.base,
+};
 static ::PROTOBUF_NAMESPACE_ID::internal::once_flag descriptor_table_google_2fprotobuf_2ffield_5fmask_2eproto_once;
-static ::PROTOBUF_NAMESPACE_ID::internal::DescriptorTable descriptor_table_google_2fprotobuf_2ffield_5fmask_2eproto = {
-  false, descriptor_table_protodef_google_2fprotobuf_2ffield_5fmask_2eproto, "google/protobuf/field_mask.proto", 230,
-  &descriptor_table_google_2fprotobuf_2ffield_5fmask_2eproto_once, AddDescriptors_google_2fprotobuf_2ffield_5fmask_2eproto, schemas,
-  file_default_instances, TableStruct_google_2fprotobuf_2ffield_5fmask_2eproto::offsets,
+static bool descriptor_table_google_2fprotobuf_2ffield_5fmask_2eproto_initialized = false;
+const ::PROTOBUF_NAMESPACE_ID::internal::DescriptorTable descriptor_table_google_2fprotobuf_2ffield_5fmask_2eproto = {
+  &descriptor_table_google_2fprotobuf_2ffield_5fmask_2eproto_initialized, descriptor_table_protodef_google_2fprotobuf_2ffield_5fmask_2eproto, "google/protobuf/field_mask.proto", 230,
+  &descriptor_table_google_2fprotobuf_2ffield_5fmask_2eproto_once, descriptor_table_google_2fprotobuf_2ffield_5fmask_2eproto_sccs, descriptor_table_google_2fprotobuf_2ffield_5fmask_2eproto_deps, 1, 0,
+  schemas, file_default_instances, TableStruct_google_2fprotobuf_2ffield_5fmask_2eproto::offsets,
   file_level_metadata_google_2fprotobuf_2ffield_5fmask_2eproto, 1, file_level_enum_descriptors_google_2fprotobuf_2ffield_5fmask_2eproto, file_level_service_descriptors_google_2fprotobuf_2ffield_5fmask_2eproto,
 };
 
-void AddDescriptors_google_2fprotobuf_2ffield_5fmask_2eproto() {
-  static constexpr ::PROTOBUF_NAMESPACE_ID::internal::InitFunc deps[1] =
-  {
-  };
-  ::PROTOBUF_NAMESPACE_ID::internal::InitSCC(&scc_info_FieldMask_google_2fprotobuf_2ffield_5fmask_2eproto.base);
- ::PROTOBUF_NAMESPACE_ID::internal::AddDescriptors(&descriptor_table_google_2fprotobuf_2ffield_5fmask_2eproto, deps, 0);
-}
-
 // Force running AddDescriptors() at dynamic initialization time.
-static bool dynamic_init_dummy_google_2fprotobuf_2ffield_5fmask_2eproto = []() { AddDescriptors_google_2fprotobuf_2ffield_5fmask_2eproto(); return true; }();
+static bool dynamic_init_dummy_google_2fprotobuf_2ffield_5fmask_2eproto = (  ::PROTOBUF_NAMESPACE_ID::internal::AddDescriptors(&descriptor_table_google_2fprotobuf_2ffield_5fmask_2eproto), true);
 PROTOBUF_NAMESPACE_OPEN
 
 // ===================================================================
@@ -118,8 +115,7 @@ FieldMask::FieldMask(const FieldMask& from)
 }
 
 void FieldMask::SharedCtor() {
-  ::PROTOBUF_NAMESPACE_ID::internal::InitSCC(
-      &scc_info_FieldMask_google_2fprotobuf_2ffield_5fmask_2eproto.base);
+  ::PROTOBUF_NAMESPACE_ID::internal::InitSCC(&scc_info_FieldMask_google_2fprotobuf_2ffield_5fmask_2eproto.base);
 }
 
 FieldMask::~FieldMask() {
@@ -386,8 +382,7 @@ void FieldMask::InternalSwap(FieldMask* other) {
 }
 
 ::PROTOBUF_NAMESPACE_ID::Metadata FieldMask::GetMetadata() const {
-  ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&::descriptor_table_google_2fprotobuf_2ffield_5fmask_2eproto);
-  return ::file_level_metadata_google_2fprotobuf_2ffield_5fmask_2eproto[kIndexInFileMessages];
+  return GetMetadataStatic();
 }
 
 

src/google/protobuf/field_mask.pb.h

@@ -27,6 +27,7 @@
 #include <google/protobuf/generated_message_util.h>
 #include <google/protobuf/inlined_string_field.h>
 #include <google/protobuf/metadata.h>
+#include <google/protobuf/generated_message_reflection.h>
 #include <google/protobuf/message.h>
 #include <google/protobuf/repeated_field.h>  // IWYU pragma: export
 #include <google/protobuf/extension_set.h>  // IWYU pragma: export
@@ -52,7 +53,7 @@ struct PROTOBUF_EXPORT TableStruct_google_2fprotobuf_2ffield_5fmask_2eproto {
   static const ::PROTOBUF_NAMESPACE_ID::internal::SerializationTable serialization_table[];
   static const ::PROTOBUF_NAMESPACE_ID::uint32 offsets[];
 };
-void PROTOBUF_EXPORT AddDescriptors_google_2fprotobuf_2ffield_5fmask_2eproto();
+extern PROTOBUF_EXPORT const ::PROTOBUF_NAMESPACE_ID::internal::DescriptorTable descriptor_table_google_2fprotobuf_2ffield_5fmask_2eproto;
 PROTOBUF_NAMESPACE_OPEN
 class FieldMask;
 class FieldMaskDefaultTypeInternal;
@@ -97,7 +98,13 @@ class PROTOBUF_EXPORT FieldMask :
     return MaybeArenaPtr();
   }
   static const ::PROTOBUF_NAMESPACE_ID::Descriptor* descriptor() {
-    return default_instance().GetDescriptor();
+    return GetDescriptor();
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Descriptor* GetDescriptor() {
+    return GetMetadataStatic().descriptor;
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Reflection* GetReflection() {
+    return GetMetadataStatic().reflection;
   }
   static const FieldMask& default_instance();
 
@@ -168,6 +175,13 @@ class PROTOBUF_EXPORT FieldMask :
   public:
 
   ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadata() const final;
+  private:
+  static ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadataStatic() {
+    ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&::descriptor_table_google_2fprotobuf_2ffield_5fmask_2eproto);
+    return ::descriptor_table_google_2fprotobuf_2ffield_5fmask_2eproto.file_level_metadata[kIndexInFileMessages];
+  }
+
+  public:
 
   // nested types ----------------------------------------------------
 

src/google/protobuf/generated_message_reflection.cc

@@ -2312,7 +2312,7 @@ void AssignDescriptorsImpl(const DescriptorTable* table) {
     // calls to AddDescriptors.
     static WrappedMutex mu{GOOGLE_PROTOBUF_LINKER_INITIALIZED};
     mu.Lock();
-    table->add_descriptors();
+    AddDescriptors(table);
     mu.Unlock();
   }
   // Fill the arrays with pointers to descriptors and reflection classes.
@@ -2342,14 +2342,20 @@ void AssignDescriptorsImpl(const DescriptorTable* table) {
                                       helper.GetCurrentMetadataPtr());
 }
 
-void AddDescriptorsImpl(DescriptorTable* table, const InitFunc* deps,
-                        int num_deps) {
+void AddDescriptorsImpl(const DescriptorTable* table) {
+  // Reflection refers to the default instances so make sure they are
+  // initialized.
+  for (int i = 0; i < table->num_sccs; i++) {
+    internal::InitSCC(table->init_default_instances[i]);
+  }
+
   // Ensure all dependent descriptors are registered to the generated descriptor
   // pool and message factory.
-  for (int i = 0; i < num_deps; i++) {
+  for (int i = 0; i < table->num_deps; i++) {
     // In case of weak fields deps[i] could be null.
-    if (deps[i]) deps[i]();
+    if (table->deps[i]) AddDescriptors(table->deps[i]);
   }
+
   // Register the descriptor of this file.
   DescriptorPool::InternalAddGeneratedFile(table->descriptor, table->size);
   MessageFactory::InternalRegisterGeneratedFile(table);
@@ -2361,15 +2367,14 @@ void AssignDescriptors(const DescriptorTable* table) {
   call_once(*table->once, AssignDescriptorsImpl, table);
 }
 
-void AddDescriptors(DescriptorTable* table, const InitFunc* deps,
-                    int num_deps) {
+void AddDescriptors(const DescriptorTable* table) {
   // AddDescriptors is not thread safe. Callers need to ensure calls are
   // properly serialized. This function is only called pre-main by global
   // descriptors and we can assume single threaded access or it's called
   // by AssignDescriptorImpl which uses a mutex to sequence calls.
-  if (table->is_initialized) return;
-  table->is_initialized = true;
-  AddDescriptorsImpl(table, deps, num_deps);
+  if (*table->is_initialized) return;
+  *table->is_initialized = true;
+  AddDescriptorsImpl(table);
 }
 
 // Separate function because it needs to be a friend of
@@ -2385,7 +2390,7 @@ void RegisterAllTypesInternal(const Metadata* file_level_metadata, int size) {
   }
 }
 
-void RegisterFileLevelMetadata(DescriptorTable* table) {
+void RegisterFileLevelMetadata(const DescriptorTable* table) {
   AssignDescriptors(table);
   RegisterAllTypesInternal(table->file_level_metadata, table->num_messages);
 }

src/google/protobuf/generated_message_reflection.h

@@ -659,15 +659,16 @@ class GeneratedMessageReflection final : public Reflection {
   GOOGLE_DISALLOW_EVIL_CONSTRUCTORS(GeneratedMessageReflection);
 };
 
-typedef void (*InitFunc)();
-
 struct PROTOBUF_EXPORT DescriptorTable {
-  bool is_initialized;
+  bool* is_initialized;
   const char* descriptor;
   const char* filename;
   int size;  // of serialized descriptor
   once_flag* once;
-  InitFunc add_descriptors;
+  SCCInfoBase* const* init_default_instances;
+  const DescriptorTable* const* deps;
+  int num_sccs;
+  int num_deps;
   const MigrationSchema* schemas;
   const Message* const* default_instances;
   const uint32* offsets;
@@ -678,9 +679,19 @@ struct PROTOBUF_EXPORT DescriptorTable {
   const ServiceDescriptor** file_level_service_descriptors;
 };
 
+// AssignDescriptors() pulls the compiled FileDescriptor from the DescriptorPool
+// and uses it to populate all of the global variables which store pointers to
+// the descriptor objects.  It also constructs the reflection objects.  It is
+// called the first time anyone calls descriptor() or GetReflection() on one of
+// the types defined in the file.  AssignDescriptors() is thread-safe.
 void PROTOBUF_EXPORT AssignDescriptors(const DescriptorTable* table);
-void PROTOBUF_EXPORT AddDescriptors(DescriptorTable* table,
-                                    const InitFunc* deps, int num_deps);
+
+// AddDescriptors() is a file-level procedure which adds the encoded
+// FileDescriptorProto for this .proto file to the global DescriptorPool for
+// generated files (DescriptorPool::generated_pool()). It ordinarily runs at
+// static initialization time, but is not used at all in LITE_RUNTIME mode.
+// AddDescriptors() is *not* thread-safe.
+void PROTOBUF_EXPORT AddDescriptors(const DescriptorTable* table);
 
 // These cannot be in lite so we put them in the reflection.
 PROTOBUF_EXPORT void UnknownFieldSetSerializer(const uint8* base, uint32 offset,

src/google/protobuf/io/strtod.cc

@@ -49,7 +49,9 @@ namespace io {
 
 namespace {
 
-const double MAX_FLOAT_AS_DOUBLE_ROUNDED = 3.4028235e+38;
+// This approximately 0x1.ffffffp127, but we don't use 0x1.ffffffp127 because
+// it won't compile in MSVC.
+const double MAX_FLOAT_AS_DOUBLE_ROUNDED = 3.4028235677973366e+38;
 
 // Returns a string identical to *input except that the character pointed to
 // by radix_pos (which should be '.') is replaced with the locale-specific

src/google/protobuf/message.cc

@@ -71,7 +71,7 @@ namespace internal {
 // TODO(gerbens) make this factorized better. This should not have to hop
 // to reflection. Currently uses GeneratedMessageReflection and thus is
 // defined in generated_message_reflection.cc
-void RegisterFileLevelMetadata(DescriptorTable* descriptor_table);
+void RegisterFileLevelMetadata(const DescriptorTable* descriptor_table);
 
 }  // namespace internal
 
@@ -682,7 +682,7 @@ class GeneratedMessageFactory : public MessageFactory {
     int size;
   };
 
-  void RegisterFile(google::protobuf::internal::DescriptorTable* table);
+  void RegisterFile(const google::protobuf::internal::DescriptorTable* table);
   void RegisterType(const Descriptor* descriptor, const Message* prototype);
 
   // implements MessageFactory ---------------------------------------
@@ -690,7 +690,7 @@ class GeneratedMessageFactory : public MessageFactory {
 
  private:
   // Only written at static init time, so does not require locking.
-  std::unordered_map<const char*, google::protobuf::internal::DescriptorTable*,
+  std::unordered_map<const char*, const google::protobuf::internal::DescriptorTable*,
                      hash<const char*>, streq>
       file_map_;
 
@@ -706,7 +706,7 @@ GeneratedMessageFactory* GeneratedMessageFactory::singleton() {
 }
 
 void GeneratedMessageFactory::RegisterFile(
-    google::protobuf::internal::DescriptorTable* table) {
+    const google::protobuf::internal::DescriptorTable* table) {
   if (!InsertIfNotPresent(&file_map_, table->filename, table)) {
     GOOGLE_LOG(FATAL) << "File is already registered: " << table->filename;
   }
@@ -740,7 +740,7 @@ const Message* GeneratedMessageFactory::GetPrototype(const Descriptor* type) {
   if (type->file()->pool() != DescriptorPool::generated_pool()) return NULL;
 
   // Apparently the file hasn't been registered yet.  Let's do that now.
-  internal::DescriptorTable* registration_data =
+  const internal::DescriptorTable* registration_data =
       FindPtrOrNull(file_map_, type->file()->name().c_str());
   if (registration_data == NULL) {
     GOOGLE_LOG(DFATAL) << "File appears to be in generated pool but wasn't "
@@ -775,7 +775,7 @@ MessageFactory* MessageFactory::generated_factory() {
 }
 
 void MessageFactory::InternalRegisterGeneratedFile(
-    google::protobuf::internal::DescriptorTable* table) {
+    const google::protobuf::internal::DescriptorTable* table) {
   GeneratedMessageFactory::singleton()->RegisterFile(table);
 }
 

src/google/protobuf/message.h

@@ -358,9 +358,7 @@ class PROTOBUF_EXPORT Message : public MessageLite {
   //
   // This method remains virtual in case a subclass does not implement
   // reflection and wants to override the default behavior.
-  virtual const Reflection* GetReflection() const final {
-    return GetMetadata().reflection;
-  }
+  const Reflection* GetReflection() const { return GetMetadata().reflection; }
 
  protected:
   // Get a struct containing the metadata for the Message. Most subclasses only
@@ -1089,7 +1087,7 @@ class PROTOBUF_EXPORT MessageFactory {
   // built lazily, so we can't register types by their descriptor until we
   // know that the descriptor exists.  |filename| must be a permanent string.
   static void InternalRegisterGeneratedFile(
-      google::protobuf::internal::DescriptorTable* table);
+      const google::protobuf::internal::DescriptorTable* table);
 
   // For internal use only:  Registers a message type.  Called only by the
   // functions which are registered with InternalRegisterGeneratedFile(),

src/google/protobuf/source_context.pb.cc

@@ -15,14 +15,13 @@
 #include <google/protobuf/wire_format.h>
 // @@protoc_insertion_point(includes)
 #include <google/protobuf/port_def.inc>
-
 PROTOBUF_NAMESPACE_OPEN
 class SourceContextDefaultTypeInternal {
  public:
   ::PROTOBUF_NAMESPACE_ID::internal::ExplicitlyConstructed<SourceContext> _instance;
 } _SourceContext_default_instance_;
 PROTOBUF_NAMESPACE_CLOSE
-static void InitDefaultsSourceContext_google_2fprotobuf_2fsource_5fcontext_2eproto() {
+static void InitDefaultsscc_info_SourceContext_google_2fprotobuf_2fsource_5fcontext_2eproto() {
   GOOGLE_PROTOBUF_VERIFY_VERSION;
 
   {
@@ -34,7 +33,7 @@ static void InitDefaultsSourceContext_google_2fprotobuf_2fsource_5fcontext_2epro
 }
 
 PROTOBUF_EXPORT ::PROTOBUF_NAMESPACE_ID::internal::SCCInfo<0> scc_info_SourceContext_google_2fprotobuf_2fsource_5fcontext_2eproto =
-    {{ATOMIC_VAR_INIT(::PROTOBUF_NAMESPACE_ID::internal::SCCInfoBase::kUninitialized), 0, InitDefaultsSourceContext_google_2fprotobuf_2fsource_5fcontext_2eproto}, {}};
+    {{ATOMIC_VAR_INIT(::PROTOBUF_NAMESPACE_ID::internal::SCCInfoBase::kUninitialized), 0, InitDefaultsscc_info_SourceContext_google_2fprotobuf_2fsource_5fcontext_2eproto}, {}};
 
 static ::PROTOBUF_NAMESPACE_ID::Metadata file_level_metadata_google_2fprotobuf_2fsource_5fcontext_2eproto[1];
 static constexpr ::PROTOBUF_NAMESPACE_ID::EnumDescriptor const** file_level_enum_descriptors_google_2fprotobuf_2fsource_5fcontext_2eproto = nullptr;
@@ -65,24 +64,22 @@ const char descriptor_table_protodef_google_2fprotobuf_2fsource_5fcontext_2eprot
   "text\242\002\003GPB\252\002\036Google.Protobuf.WellKnownTy"
   "pesb\006proto3"
   ;
+static const ::PROTOBUF_NAMESPACE_ID::internal::DescriptorTable*const descriptor_table_google_2fprotobuf_2fsource_5fcontext_2eproto_deps[1] = {
+};
+static ::PROTOBUF_NAMESPACE_ID::internal::SCCInfoBase*const descriptor_table_google_2fprotobuf_2fsource_5fcontext_2eproto_sccs[1] = {
+  &scc_info_SourceContext_google_2fprotobuf_2fsource_5fcontext_2eproto.base,
+};
 static ::PROTOBUF_NAMESPACE_ID::internal::once_flag descriptor_table_google_2fprotobuf_2fsource_5fcontext_2eproto_once;
-static ::PROTOBUF_NAMESPACE_ID::internal::DescriptorTable descriptor_table_google_2fprotobuf_2fsource_5fcontext_2eproto = {
-  false, descriptor_table_protodef_google_2fprotobuf_2fsource_5fcontext_2eproto, "google/protobuf/source_context.proto", 251,
-  &descriptor_table_google_2fprotobuf_2fsource_5fcontext_2eproto_once, AddDescriptors_google_2fprotobuf_2fsource_5fcontext_2eproto, schemas,
-  file_default_instances, TableStruct_google_2fprotobuf_2fsource_5fcontext_2eproto::offsets,
+static bool descriptor_table_google_2fprotobuf_2fsource_5fcontext_2eproto_initialized = false;
+const ::PROTOBUF_NAMESPACE_ID::internal::DescriptorTable descriptor_table_google_2fprotobuf_2fsource_5fcontext_2eproto = {
+  &descriptor_table_google_2fprotobuf_2fsource_5fcontext_2eproto_initialized, descriptor_table_protodef_google_2fprotobuf_2fsource_5fcontext_2eproto, "google/protobuf/source_context.proto", 251,
+  &descriptor_table_google_2fprotobuf_2fsource_5fcontext_2eproto_once, descriptor_table_google_2fprotobuf_2fsource_5fcontext_2eproto_sccs, descriptor_table_google_2fprotobuf_2fsource_5fcontext_2eproto_deps, 1, 0,
+  schemas, file_default_instances, TableStruct_google_2fprotobuf_2fsource_5fcontext_2eproto::offsets,
   file_level_metadata_google_2fprotobuf_2fsource_5fcontext_2eproto, 1, file_level_enum_descriptors_google_2fprotobuf_2fsource_5fcontext_2eproto, file_level_service_descriptors_google_2fprotobuf_2fsource_5fcontext_2eproto,
 };
 
-void AddDescriptors_google_2fprotobuf_2fsource_5fcontext_2eproto() {
-  static constexpr ::PROTOBUF_NAMESPACE_ID::internal::InitFunc deps[1] =
-  {
-  };
-  ::PROTOBUF_NAMESPACE_ID::internal::InitSCC(&scc_info_SourceContext_google_2fprotobuf_2fsource_5fcontext_2eproto.base);
- ::PROTOBUF_NAMESPACE_ID::internal::AddDescriptors(&descriptor_table_google_2fprotobuf_2fsource_5fcontext_2eproto, deps, 0);
-}
-
 // Force running AddDescriptors() at dynamic initialization time.
-static bool dynamic_init_dummy_google_2fprotobuf_2fsource_5fcontext_2eproto = []() { AddDescriptors_google_2fprotobuf_2fsource_5fcontext_2eproto(); return true; }();
+static bool dynamic_init_dummy_google_2fprotobuf_2fsource_5fcontext_2eproto = (  ::PROTOBUF_NAMESPACE_ID::internal::AddDescriptors(&descriptor_table_google_2fprotobuf_2fsource_5fcontext_2eproto), true);
 PROTOBUF_NAMESPACE_OPEN
 
 // ===================================================================
@@ -114,8 +111,7 @@ SourceContext::SourceContext(const SourceContext& from)
 }
 
 void SourceContext::SharedCtor() {
-  ::PROTOBUF_NAMESPACE_ID::internal::InitSCC(
-      &scc_info_SourceContext_google_2fprotobuf_2fsource_5fcontext_2eproto.base);
+  ::PROTOBUF_NAMESPACE_ID::internal::InitSCC(&scc_info_SourceContext_google_2fprotobuf_2fsource_5fcontext_2eproto.base);
   file_name_.UnsafeSetDefault(&::PROTOBUF_NAMESPACE_ID::internal::GetEmptyStringAlreadyInited());
 }
 
@@ -359,8 +355,7 @@ void SourceContext::InternalSwap(SourceContext* other) {
 }
 
 ::PROTOBUF_NAMESPACE_ID::Metadata SourceContext::GetMetadata() const {
-  ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&::descriptor_table_google_2fprotobuf_2fsource_5fcontext_2eproto);
-  return ::file_level_metadata_google_2fprotobuf_2fsource_5fcontext_2eproto[kIndexInFileMessages];
+  return GetMetadataStatic();
 }
 
 

src/google/protobuf/source_context.pb.h

@@ -27,6 +27,7 @@
 #include <google/protobuf/generated_message_util.h>
 #include <google/protobuf/inlined_string_field.h>
 #include <google/protobuf/metadata.h>
+#include <google/protobuf/generated_message_reflection.h>
 #include <google/protobuf/message.h>
 #include <google/protobuf/repeated_field.h>  // IWYU pragma: export
 #include <google/protobuf/extension_set.h>  // IWYU pragma: export
@@ -52,7 +53,7 @@ struct PROTOBUF_EXPORT TableStruct_google_2fprotobuf_2fsource_5fcontext_2eproto
   static const ::PROTOBUF_NAMESPACE_ID::internal::SerializationTable serialization_table[];
   static const ::PROTOBUF_NAMESPACE_ID::uint32 offsets[];
 };
-void PROTOBUF_EXPORT AddDescriptors_google_2fprotobuf_2fsource_5fcontext_2eproto();
+extern PROTOBUF_EXPORT const ::PROTOBUF_NAMESPACE_ID::internal::DescriptorTable descriptor_table_google_2fprotobuf_2fsource_5fcontext_2eproto;
 PROTOBUF_NAMESPACE_OPEN
 class SourceContext;
 class SourceContextDefaultTypeInternal;
@@ -91,7 +92,13 @@ class PROTOBUF_EXPORT SourceContext :
   }
 
   static const ::PROTOBUF_NAMESPACE_ID::Descriptor* descriptor() {
-    return default_instance().GetDescriptor();
+    return GetDescriptor();
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Descriptor* GetDescriptor() {
+    return GetMetadataStatic().descriptor;
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Reflection* GetReflection() {
+    return GetMetadataStatic().reflection;
   }
   static const SourceContext& default_instance();
 
@@ -156,6 +163,13 @@ class PROTOBUF_EXPORT SourceContext :
   public:
 
   ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadata() const final;
+  private:
+  static ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadataStatic() {
+    ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&::descriptor_table_google_2fprotobuf_2fsource_5fcontext_2eproto);
+    return ::descriptor_table_google_2fprotobuf_2fsource_5fcontext_2eproto.file_level_metadata[kIndexInFileMessages];
+  }
+
+  public:
 
   // nested types ----------------------------------------------------
 

src/google/protobuf/struct.pb.cc

@@ -15,7 +15,6 @@
 #include <google/protobuf/wire_format.h>
 // @@protoc_insertion_point(includes)
 #include <google/protobuf/port_def.inc>
-
 extern PROTOBUF_INTERNAL_EXPORT_google_2fprotobuf_2fstruct_2eproto ::PROTOBUF_NAMESPACE_ID::internal::SCCInfo<0> scc_info_ListValue_google_2fprotobuf_2fstruct_2eproto;
 PROTOBUF_NAMESPACE_OPEN
 class Struct_FieldsEntry_DoNotUseDefaultTypeInternal {
@@ -41,7 +40,7 @@ class ListValueDefaultTypeInternal {
   ::PROTOBUF_NAMESPACE_ID::internal::ExplicitlyConstructed<ListValue> _instance;
 } _ListValue_default_instance_;
 PROTOBUF_NAMESPACE_CLOSE
-static void InitDefaultsListValue_google_2fprotobuf_2fstruct_2eproto() {
+static void InitDefaultsscc_info_ListValue_google_2fprotobuf_2fstruct_2eproto() {
   GOOGLE_PROTOBUF_VERIFY_VERSION;
 
   {
@@ -70,7 +69,7 @@ static void InitDefaultsListValue_google_2fprotobuf_2fstruct_2eproto() {
 }
 
 PROTOBUF_EXPORT ::PROTOBUF_NAMESPACE_ID::internal::SCCInfo<0> scc_info_ListValue_google_2fprotobuf_2fstruct_2eproto =
-    {{ATOMIC_VAR_INIT(::PROTOBUF_NAMESPACE_ID::internal::SCCInfoBase::kUninitialized), 0, InitDefaultsListValue_google_2fprotobuf_2fstruct_2eproto}, {}};
+    {{ATOMIC_VAR_INIT(::PROTOBUF_NAMESPACE_ID::internal::SCCInfoBase::kUninitialized), 0, InitDefaultsscc_info_ListValue_google_2fprotobuf_2fstruct_2eproto}, {}};
 
 static ::PROTOBUF_NAMESPACE_ID::Metadata file_level_metadata_google_2fprotobuf_2fstruct_2eproto[4];
 static const ::PROTOBUF_NAMESPACE_ID::EnumDescriptor* file_level_enum_descriptors_google_2fprotobuf_2fstruct_2eproto[1];
@@ -144,24 +143,22 @@ const char descriptor_table_protodef_google_2fprotobuf_2fstruct_2eproto[] =
   "\252\002\036Google.Protobuf.WellKnownTypesb\006proto"
   "3"
   ;
+static const ::PROTOBUF_NAMESPACE_ID::internal::DescriptorTable*const descriptor_table_google_2fprotobuf_2fstruct_2eproto_deps[1] = {
+};
+static ::PROTOBUF_NAMESPACE_ID::internal::SCCInfoBase*const descriptor_table_google_2fprotobuf_2fstruct_2eproto_sccs[1] = {
+  &scc_info_ListValue_google_2fprotobuf_2fstruct_2eproto.base,
+};
 static ::PROTOBUF_NAMESPACE_ID::internal::once_flag descriptor_table_google_2fprotobuf_2fstruct_2eproto_once;
-static ::PROTOBUF_NAMESPACE_ID::internal::DescriptorTable descriptor_table_google_2fprotobuf_2fstruct_2eproto = {
-  false, descriptor_table_protodef_google_2fprotobuf_2fstruct_2eproto, "google/protobuf/struct.proto", 641,
-  &descriptor_table_google_2fprotobuf_2fstruct_2eproto_once, AddDescriptors_google_2fprotobuf_2fstruct_2eproto, schemas,
-  file_default_instances, TableStruct_google_2fprotobuf_2fstruct_2eproto::offsets,
+static bool descriptor_table_google_2fprotobuf_2fstruct_2eproto_initialized = false;
+const ::PROTOBUF_NAMESPACE_ID::internal::DescriptorTable descriptor_table_google_2fprotobuf_2fstruct_2eproto = {
+  &descriptor_table_google_2fprotobuf_2fstruct_2eproto_initialized, descriptor_table_protodef_google_2fprotobuf_2fstruct_2eproto, "google/protobuf/struct.proto", 641,
+  &descriptor_table_google_2fprotobuf_2fstruct_2eproto_once, descriptor_table_google_2fprotobuf_2fstruct_2eproto_sccs, descriptor_table_google_2fprotobuf_2fstruct_2eproto_deps, 1, 0,
+  schemas, file_default_instances, TableStruct_google_2fprotobuf_2fstruct_2eproto::offsets,
   file_level_metadata_google_2fprotobuf_2fstruct_2eproto, 4, file_level_enum_descriptors_google_2fprotobuf_2fstruct_2eproto, file_level_service_descriptors_google_2fprotobuf_2fstruct_2eproto,
 };
 
-void AddDescriptors_google_2fprotobuf_2fstruct_2eproto() {
-  static constexpr ::PROTOBUF_NAMESPACE_ID::internal::InitFunc deps[1] =
-  {
-  };
-  ::PROTOBUF_NAMESPACE_ID::internal::InitSCC(&scc_info_ListValue_google_2fprotobuf_2fstruct_2eproto.base);
- ::PROTOBUF_NAMESPACE_ID::internal::AddDescriptors(&descriptor_table_google_2fprotobuf_2fstruct_2eproto, deps, 0);
-}
-
 // Force running AddDescriptors() at dynamic initialization time.
-static bool dynamic_init_dummy_google_2fprotobuf_2fstruct_2eproto = []() { AddDescriptors_google_2fprotobuf_2fstruct_2eproto(); return true; }();
+static bool dynamic_init_dummy_google_2fprotobuf_2fstruct_2eproto = (  ::PROTOBUF_NAMESPACE_ID::internal::AddDescriptors(&descriptor_table_google_2fprotobuf_2fstruct_2eproto), true);
 PROTOBUF_NAMESPACE_OPEN
 const ::PROTOBUF_NAMESPACE_ID::EnumDescriptor* NullValue_descriptor() {
   ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&descriptor_table_google_2fprotobuf_2fstruct_2eproto);
@@ -186,8 +183,7 @@ void Struct_FieldsEntry_DoNotUse::MergeFrom(const Struct_FieldsEntry_DoNotUse& o
   MergeFromInternal(other);
 }
 ::PROTOBUF_NAMESPACE_ID::Metadata Struct_FieldsEntry_DoNotUse::GetMetadata() const {
-  ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&::descriptor_table_google_2fprotobuf_2fstruct_2eproto);
-  return ::file_level_metadata_google_2fprotobuf_2fstruct_2eproto[0];
+  return GetMetadataStatic();
 }
 void Struct_FieldsEntry_DoNotUse::MergeFrom(
     const ::PROTOBUF_NAMESPACE_ID::Message& other) {
@@ -229,8 +225,7 @@ Struct::Struct(const Struct& from)
 }
 
 void Struct::SharedCtor() {
-  ::PROTOBUF_NAMESPACE_ID::internal::InitSCC(
-      &scc_info_ListValue_google_2fprotobuf_2fstruct_2eproto.base);
+  ::PROTOBUF_NAMESPACE_ID::internal::InitSCC(&scc_info_ListValue_google_2fprotobuf_2fstruct_2eproto.base);
 }
 
 Struct::~Struct() {
@@ -572,8 +567,7 @@ void Struct::InternalSwap(Struct* other) {
 }
 
 ::PROTOBUF_NAMESPACE_ID::Metadata Struct::GetMetadata() const {
-  ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&::descriptor_table_google_2fprotobuf_2fstruct_2eproto);
-  return ::file_level_metadata_google_2fprotobuf_2fstruct_2eproto[kIndexInFileMessages];
+  return GetMetadataStatic();
 }
 
 
@@ -693,8 +687,7 @@ Value::Value(const Value& from)
 }
 
 void Value::SharedCtor() {
-  ::PROTOBUF_NAMESPACE_ID::internal::InitSCC(
-      &scc_info_ListValue_google_2fprotobuf_2fstruct_2eproto.base);
+  ::PROTOBUF_NAMESPACE_ID::internal::InitSCC(&scc_info_ListValue_google_2fprotobuf_2fstruct_2eproto.base);
   clear_has_kind();
 }
 
@@ -1221,8 +1214,7 @@ void Value::InternalSwap(Value* other) {
 }
 
 ::PROTOBUF_NAMESPACE_ID::Metadata Value::GetMetadata() const {
-  ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&::descriptor_table_google_2fprotobuf_2fstruct_2eproto);
-  return ::file_level_metadata_google_2fprotobuf_2fstruct_2eproto[kIndexInFileMessages];
+  return GetMetadataStatic();
 }
 
 
@@ -1260,8 +1252,7 @@ ListValue::ListValue(const ListValue& from)
 }
 
 void ListValue::SharedCtor() {
-  ::PROTOBUF_NAMESPACE_ID::internal::InitSCC(
-      &scc_info_ListValue_google_2fprotobuf_2fstruct_2eproto.base);
+  ::PROTOBUF_NAMESPACE_ID::internal::InitSCC(&scc_info_ListValue_google_2fprotobuf_2fstruct_2eproto.base);
 }
 
 ListValue::~ListValue() {
@@ -1523,8 +1514,7 @@ void ListValue::InternalSwap(ListValue* other) {
 }
 
 ::PROTOBUF_NAMESPACE_ID::Metadata ListValue::GetMetadata() const {
-  ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&::descriptor_table_google_2fprotobuf_2fstruct_2eproto);
-  return ::file_level_metadata_google_2fprotobuf_2fstruct_2eproto[kIndexInFileMessages];
+  return GetMetadataStatic();
 }
 
 

src/google/protobuf/struct.pb.h

@@ -27,6 +27,7 @@
 #include <google/protobuf/generated_message_util.h>
 #include <google/protobuf/inlined_string_field.h>
 #include <google/protobuf/metadata.h>
+#include <google/protobuf/generated_message_reflection.h>
 #include <google/protobuf/message.h>
 #include <google/protobuf/repeated_field.h>  // IWYU pragma: export
 #include <google/protobuf/extension_set.h>  // IWYU pragma: export
@@ -56,7 +57,7 @@ struct PROTOBUF_EXPORT TableStruct_google_2fprotobuf_2fstruct_2eproto {
   static const ::PROTOBUF_NAMESPACE_ID::internal::SerializationTable serialization_table[];
   static const ::PROTOBUF_NAMESPACE_ID::uint32 offsets[];
 };
-void PROTOBUF_EXPORT AddDescriptors_google_2fprotobuf_2fstruct_2eproto();
+extern PROTOBUF_EXPORT const ::PROTOBUF_NAMESPACE_ID::internal::DescriptorTable descriptor_table_google_2fprotobuf_2fstruct_2eproto;
 PROTOBUF_NAMESPACE_OPEN
 class ListValue;
 class ListValueDefaultTypeInternal;
@@ -125,7 +126,14 @@ public:
  }
   static bool ValidateValue(void*) { return true; }
   void MergeFrom(const ::PROTOBUF_NAMESPACE_ID::Message& other) final;
-  ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadata() const;
+  ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadata() const final;
+  private:
+  static ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadataStatic() {
+    ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&::descriptor_table_google_2fprotobuf_2fstruct_2eproto);
+    return ::descriptor_table_google_2fprotobuf_2fstruct_2eproto.file_level_metadata[0];
+  }
+
+  public:
 };
 
 // -------------------------------------------------------------------
@@ -162,7 +170,13 @@ class PROTOBUF_EXPORT Struct :
     return MaybeArenaPtr();
   }
   static const ::PROTOBUF_NAMESPACE_ID::Descriptor* descriptor() {
-    return default_instance().GetDescriptor();
+    return GetDescriptor();
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Descriptor* GetDescriptor() {
+    return GetMetadataStatic().descriptor;
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Reflection* GetReflection() {
+    return GetMetadataStatic().reflection;
   }
   static const Struct& default_instance();
 
@@ -233,6 +247,13 @@ class PROTOBUF_EXPORT Struct :
   public:
 
   ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadata() const final;
+  private:
+  static ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadataStatic() {
+    ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&::descriptor_table_google_2fprotobuf_2fstruct_2eproto);
+    return ::descriptor_table_google_2fprotobuf_2fstruct_2eproto.file_level_metadata[kIndexInFileMessages];
+  }
+
+  public:
 
   // nested types ----------------------------------------------------
 
@@ -299,7 +320,13 @@ class PROTOBUF_EXPORT Value :
     return MaybeArenaPtr();
   }
   static const ::PROTOBUF_NAMESPACE_ID::Descriptor* descriptor() {
-    return default_instance().GetDescriptor();
+    return GetDescriptor();
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Descriptor* GetDescriptor() {
+    return GetMetadataStatic().descriptor;
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Reflection* GetReflection() {
+    return GetMetadataStatic().reflection;
   }
   static const Value& default_instance();
 
@@ -380,6 +407,13 @@ class PROTOBUF_EXPORT Value :
   public:
 
   ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadata() const final;
+  private:
+  static ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadataStatic() {
+    ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&::descriptor_table_google_2fprotobuf_2fstruct_2eproto);
+    return ::descriptor_table_google_2fprotobuf_2fstruct_2eproto.file_level_metadata[kIndexInFileMessages];
+  }
+
+  public:
 
   // nested types ----------------------------------------------------
 
@@ -527,7 +561,13 @@ class PROTOBUF_EXPORT ListValue :
     return MaybeArenaPtr();
   }
   static const ::PROTOBUF_NAMESPACE_ID::Descriptor* descriptor() {
-    return default_instance().GetDescriptor();
+    return GetDescriptor();
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Descriptor* GetDescriptor() {
+    return GetMetadataStatic().descriptor;
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Reflection* GetReflection() {
+    return GetMetadataStatic().reflection;
   }
   static const ListValue& default_instance();
 
@@ -598,6 +638,13 @@ class PROTOBUF_EXPORT ListValue :
   public:
 
   ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadata() const final;
+  private:
+  static ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadataStatic() {
+    ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&::descriptor_table_google_2fprotobuf_2fstruct_2eproto);
+    return ::descriptor_table_google_2fprotobuf_2fstruct_2eproto.file_level_metadata[kIndexInFileMessages];
+  }
+
+  public:
 
   // nested types ----------------------------------------------------
 

src/google/protobuf/text_format_unittest.cc

@@ -1210,8 +1210,8 @@ TEST_F(TextFormatTest, ParseExotic) {
   ASSERT_TRUE(
       TextFormat::ParseFromString("repeated_float: 3.4028235e+38\n"
                                   "repeated_float: -3.4028235e+38\n"
-                                  "repeated_float: 3.40282351e+38\n"
-                                  "repeated_float: -3.40282351e+38\n",
+                                  "repeated_float: 3.402823567797337e+38\n"
+                                  "repeated_float: -3.402823567797337e+38\n",
                                   &message));
   EXPECT_EQ(message.repeated_float(0), std::numeric_limits<float>::max());
   EXPECT_EQ(message.repeated_float(1), -std::numeric_limits<float>::max());

src/google/protobuf/timestamp.pb.cc

@@ -15,14 +15,13 @@
 #include <google/protobuf/wire_format.h>
 // @@protoc_insertion_point(includes)
 #include <google/protobuf/port_def.inc>
-
 PROTOBUF_NAMESPACE_OPEN
 class TimestampDefaultTypeInternal {
  public:
   ::PROTOBUF_NAMESPACE_ID::internal::ExplicitlyConstructed<Timestamp> _instance;
 } _Timestamp_default_instance_;
 PROTOBUF_NAMESPACE_CLOSE
-static void InitDefaultsTimestamp_google_2fprotobuf_2ftimestamp_2eproto() {
+static void InitDefaultsscc_info_Timestamp_google_2fprotobuf_2ftimestamp_2eproto() {
   GOOGLE_PROTOBUF_VERIFY_VERSION;
 
   {
@@ -34,7 +33,7 @@ static void InitDefaultsTimestamp_google_2fprotobuf_2ftimestamp_2eproto() {
 }
 
 PROTOBUF_EXPORT ::PROTOBUF_NAMESPACE_ID::internal::SCCInfo<0> scc_info_Timestamp_google_2fprotobuf_2ftimestamp_2eproto =
-    {{ATOMIC_VAR_INIT(::PROTOBUF_NAMESPACE_ID::internal::SCCInfoBase::kUninitialized), 0, InitDefaultsTimestamp_google_2fprotobuf_2ftimestamp_2eproto}, {}};
+    {{ATOMIC_VAR_INIT(::PROTOBUF_NAMESPACE_ID::internal::SCCInfoBase::kUninitialized), 0, InitDefaultsscc_info_Timestamp_google_2fprotobuf_2ftimestamp_2eproto}, {}};
 
 static ::PROTOBUF_NAMESPACE_ID::Metadata file_level_metadata_google_2fprotobuf_2ftimestamp_2eproto[1];
 static constexpr ::PROTOBUF_NAMESPACE_ID::EnumDescriptor const** file_level_enum_descriptors_google_2fprotobuf_2ftimestamp_2eproto = nullptr;
@@ -65,24 +64,22 @@ const char descriptor_table_protodef_google_2fprotobuf_2ftimestamp_2eproto[] =
   "obuf/ptypes/timestamp\370\001\001\242\002\003GPB\252\002\036Google."
   "Protobuf.WellKnownTypesb\006proto3"
   ;
+static const ::PROTOBUF_NAMESPACE_ID::internal::DescriptorTable*const descriptor_table_google_2fprotobuf_2ftimestamp_2eproto_deps[1] = {
+};
+static ::PROTOBUF_NAMESPACE_ID::internal::SCCInfoBase*const descriptor_table_google_2fprotobuf_2ftimestamp_2eproto_sccs[1] = {
+  &scc_info_Timestamp_google_2fprotobuf_2ftimestamp_2eproto.base,
+};
 static ::PROTOBUF_NAMESPACE_ID::internal::once_flag descriptor_table_google_2fprotobuf_2ftimestamp_2eproto_once;
-static ::PROTOBUF_NAMESPACE_ID::internal::DescriptorTable descriptor_table_google_2fprotobuf_2ftimestamp_2eproto = {
-  false, descriptor_table_protodef_google_2fprotobuf_2ftimestamp_2eproto, "google/protobuf/timestamp.proto", 231,
-  &descriptor_table_google_2fprotobuf_2ftimestamp_2eproto_once, AddDescriptors_google_2fprotobuf_2ftimestamp_2eproto, schemas,
-  file_default_instances, TableStruct_google_2fprotobuf_2ftimestamp_2eproto::offsets,
+static bool descriptor_table_google_2fprotobuf_2ftimestamp_2eproto_initialized = false;
+const ::PROTOBUF_NAMESPACE_ID::internal::DescriptorTable descriptor_table_google_2fprotobuf_2ftimestamp_2eproto = {
+  &descriptor_table_google_2fprotobuf_2ftimestamp_2eproto_initialized, descriptor_table_protodef_google_2fprotobuf_2ftimestamp_2eproto, "google/protobuf/timestamp.proto", 231,
+  &descriptor_table_google_2fprotobuf_2ftimestamp_2eproto_once, descriptor_table_google_2fprotobuf_2ftimestamp_2eproto_sccs, descriptor_table_google_2fprotobuf_2ftimestamp_2eproto_deps, 1, 0,
+  schemas, file_default_instances, TableStruct_google_2fprotobuf_2ftimestamp_2eproto::offsets,
   file_level_metadata_google_2fprotobuf_2ftimestamp_2eproto, 1, file_level_enum_descriptors_google_2fprotobuf_2ftimestamp_2eproto, file_level_service_descriptors_google_2fprotobuf_2ftimestamp_2eproto,
 };
 
-void AddDescriptors_google_2fprotobuf_2ftimestamp_2eproto() {
-  static constexpr ::PROTOBUF_NAMESPACE_ID::internal::InitFunc deps[1] =
-  {
-  };
-  ::PROTOBUF_NAMESPACE_ID::internal::InitSCC(&scc_info_Timestamp_google_2fprotobuf_2ftimestamp_2eproto.base);
- ::PROTOBUF_NAMESPACE_ID::internal::AddDescriptors(&descriptor_table_google_2fprotobuf_2ftimestamp_2eproto, deps, 0);
-}
-
 // Force running AddDescriptors() at dynamic initialization time.
-static bool dynamic_init_dummy_google_2fprotobuf_2ftimestamp_2eproto = []() { AddDescriptors_google_2fprotobuf_2ftimestamp_2eproto(); return true; }();
+static bool dynamic_init_dummy_google_2fprotobuf_2ftimestamp_2eproto = (  ::PROTOBUF_NAMESPACE_ID::internal::AddDescriptors(&descriptor_table_google_2fprotobuf_2ftimestamp_2eproto), true);
 PROTOBUF_NAMESPACE_OPEN
 
 // ===================================================================
@@ -416,8 +413,7 @@ void Timestamp::InternalSwap(Timestamp* other) {
 }
 
 ::PROTOBUF_NAMESPACE_ID::Metadata Timestamp::GetMetadata() const {
-  ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&::descriptor_table_google_2fprotobuf_2ftimestamp_2eproto);
-  return ::file_level_metadata_google_2fprotobuf_2ftimestamp_2eproto[kIndexInFileMessages];
+  return GetMetadataStatic();
 }
 
 

src/google/protobuf/timestamp.pb.h

@@ -27,6 +27,7 @@
 #include <google/protobuf/generated_message_util.h>
 #include <google/protobuf/inlined_string_field.h>
 #include <google/protobuf/metadata.h>
+#include <google/protobuf/generated_message_reflection.h>
 #include <google/protobuf/message.h>
 #include <google/protobuf/repeated_field.h>  // IWYU pragma: export
 #include <google/protobuf/extension_set.h>  // IWYU pragma: export
@@ -52,7 +53,7 @@ struct PROTOBUF_EXPORT TableStruct_google_2fprotobuf_2ftimestamp_2eproto {
   static const ::PROTOBUF_NAMESPACE_ID::internal::SerializationTable serialization_table[];
   static const ::PROTOBUF_NAMESPACE_ID::uint32 offsets[];
 };
-void PROTOBUF_EXPORT AddDescriptors_google_2fprotobuf_2ftimestamp_2eproto();
+extern PROTOBUF_EXPORT const ::PROTOBUF_NAMESPACE_ID::internal::DescriptorTable descriptor_table_google_2fprotobuf_2ftimestamp_2eproto;
 PROTOBUF_NAMESPACE_OPEN
 class Timestamp;
 class TimestampDefaultTypeInternal;
@@ -97,7 +98,13 @@ class PROTOBUF_EXPORT Timestamp :
     return MaybeArenaPtr();
   }
   static const ::PROTOBUF_NAMESPACE_ID::Descriptor* descriptor() {
-    return default_instance().GetDescriptor();
+    return GetDescriptor();
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Descriptor* GetDescriptor() {
+    return GetMetadataStatic().descriptor;
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Reflection* GetReflection() {
+    return GetMetadataStatic().reflection;
   }
   static const Timestamp& default_instance();
 
@@ -168,6 +175,13 @@ class PROTOBUF_EXPORT Timestamp :
   public:
 
   ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadata() const final;
+  private:
+  static ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadataStatic() {
+    ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&::descriptor_table_google_2fprotobuf_2ftimestamp_2eproto);
+    return ::descriptor_table_google_2fprotobuf_2ftimestamp_2eproto.file_level_metadata[kIndexInFileMessages];
+  }
+
+  public:
 
   // nested types ----------------------------------------------------
 

src/google/protobuf/type.pb.cc

@@ -15,12 +15,11 @@
 #include <google/protobuf/wire_format.h>
 // @@protoc_insertion_point(includes)
 #include <google/protobuf/port_def.inc>
-
 extern PROTOBUF_INTERNAL_EXPORT_google_2fprotobuf_2fany_2eproto ::PROTOBUF_NAMESPACE_ID::internal::SCCInfo<0> scc_info_Any_google_2fprotobuf_2fany_2eproto;
-extern PROTOBUF_INTERNAL_EXPORT_google_2fprotobuf_2fsource_5fcontext_2eproto ::PROTOBUF_NAMESPACE_ID::internal::SCCInfo<0> scc_info_SourceContext_google_2fprotobuf_2fsource_5fcontext_2eproto;
 extern PROTOBUF_INTERNAL_EXPORT_google_2fprotobuf_2ftype_2eproto ::PROTOBUF_NAMESPACE_ID::internal::SCCInfo<1> scc_info_EnumValue_google_2fprotobuf_2ftype_2eproto;
 extern PROTOBUF_INTERNAL_EXPORT_google_2fprotobuf_2ftype_2eproto ::PROTOBUF_NAMESPACE_ID::internal::SCCInfo<1> scc_info_Field_google_2fprotobuf_2ftype_2eproto;
 extern PROTOBUF_INTERNAL_EXPORT_google_2fprotobuf_2ftype_2eproto ::PROTOBUF_NAMESPACE_ID::internal::SCCInfo<1> scc_info_Option_google_2fprotobuf_2ftype_2eproto;
+extern PROTOBUF_INTERNAL_EXPORT_google_2fprotobuf_2fsource_5fcontext_2eproto ::PROTOBUF_NAMESPACE_ID::internal::SCCInfo<0> scc_info_SourceContext_google_2fprotobuf_2fsource_5fcontext_2eproto;
 PROTOBUF_NAMESPACE_OPEN
 class TypeDefaultTypeInternal {
  public:
@@ -43,84 +42,84 @@ class OptionDefaultTypeInternal {
   ::PROTOBUF_NAMESPACE_ID::internal::ExplicitlyConstructed<Option> _instance;
 } _Option_default_instance_;
 PROTOBUF_NAMESPACE_CLOSE
-static void InitDefaultsType_google_2fprotobuf_2ftype_2eproto() {
+static void InitDefaultsscc_info_Enum_google_2fprotobuf_2ftype_2eproto() {
   GOOGLE_PROTOBUF_VERIFY_VERSION;
 
   {
-    void* ptr = &PROTOBUF_NAMESPACE_ID::_Type_default_instance_;
-    new (ptr) PROTOBUF_NAMESPACE_ID::Type();
+    void* ptr = &PROTOBUF_NAMESPACE_ID::_Enum_default_instance_;
+    new (ptr) PROTOBUF_NAMESPACE_ID::Enum();
     ::PROTOBUF_NAMESPACE_ID::internal::OnShutdownDestroyMessage(ptr);
   }
-  PROTOBUF_NAMESPACE_ID::Type::InitAsDefaultInstance();
+  PROTOBUF_NAMESPACE_ID::Enum::InitAsDefaultInstance();
 }
 
-PROTOBUF_EXPORT ::PROTOBUF_NAMESPACE_ID::internal::SCCInfo<3> scc_info_Type_google_2fprotobuf_2ftype_2eproto =
-    {{ATOMIC_VAR_INIT(::PROTOBUF_NAMESPACE_ID::internal::SCCInfoBase::kUninitialized), 3, InitDefaultsType_google_2fprotobuf_2ftype_2eproto}, {
-      &scc_info_Field_google_2fprotobuf_2ftype_2eproto.base,
+PROTOBUF_EXPORT ::PROTOBUF_NAMESPACE_ID::internal::SCCInfo<3> scc_info_Enum_google_2fprotobuf_2ftype_2eproto =
+    {{ATOMIC_VAR_INIT(::PROTOBUF_NAMESPACE_ID::internal::SCCInfoBase::kUninitialized), 3, InitDefaultsscc_info_Enum_google_2fprotobuf_2ftype_2eproto}, {
+      &scc_info_EnumValue_google_2fprotobuf_2ftype_2eproto.base,
       &scc_info_Option_google_2fprotobuf_2ftype_2eproto.base,
       &scc_info_SourceContext_google_2fprotobuf_2fsource_5fcontext_2eproto.base,}};
 
-static void InitDefaultsField_google_2fprotobuf_2ftype_2eproto() {
+static void InitDefaultsscc_info_EnumValue_google_2fprotobuf_2ftype_2eproto() {
   GOOGLE_PROTOBUF_VERIFY_VERSION;
 
   {
-    void* ptr = &PROTOBUF_NAMESPACE_ID::_Field_default_instance_;
-    new (ptr) PROTOBUF_NAMESPACE_ID::Field();
+    void* ptr = &PROTOBUF_NAMESPACE_ID::_EnumValue_default_instance_;
+    new (ptr) PROTOBUF_NAMESPACE_ID::EnumValue();
     ::PROTOBUF_NAMESPACE_ID::internal::OnShutdownDestroyMessage(ptr);
   }
-  PROTOBUF_NAMESPACE_ID::Field::InitAsDefaultInstance();
+  PROTOBUF_NAMESPACE_ID::EnumValue::InitAsDefaultInstance();
 }
 
-PROTOBUF_EXPORT ::PROTOBUF_NAMESPACE_ID::internal::SCCInfo<1> scc_info_Field_google_2fprotobuf_2ftype_2eproto =
-    {{ATOMIC_VAR_INIT(::PROTOBUF_NAMESPACE_ID::internal::SCCInfoBase::kUninitialized), 1, InitDefaultsField_google_2fprotobuf_2ftype_2eproto}, {
+PROTOBUF_EXPORT ::PROTOBUF_NAMESPACE_ID::internal::SCCInfo<1> scc_info_EnumValue_google_2fprotobuf_2ftype_2eproto =
+    {{ATOMIC_VAR_INIT(::PROTOBUF_NAMESPACE_ID::internal::SCCInfoBase::kUninitialized), 1, InitDefaultsscc_info_EnumValue_google_2fprotobuf_2ftype_2eproto}, {
       &scc_info_Option_google_2fprotobuf_2ftype_2eproto.base,}};
 
-static void InitDefaultsEnum_google_2fprotobuf_2ftype_2eproto() {
+static void InitDefaultsscc_info_Field_google_2fprotobuf_2ftype_2eproto() {
   GOOGLE_PROTOBUF_VERIFY_VERSION;
 
   {
-    void* ptr = &PROTOBUF_NAMESPACE_ID::_Enum_default_instance_;
-    new (ptr) PROTOBUF_NAMESPACE_ID::Enum();
+    void* ptr = &PROTOBUF_NAMESPACE_ID::_Field_default_instance_;
+    new (ptr) PROTOBUF_NAMESPACE_ID::Field();
     ::PROTOBUF_NAMESPACE_ID::internal::OnShutdownDestroyMessage(ptr);
   }
-  PROTOBUF_NAMESPACE_ID::Enum::InitAsDefaultInstance();
+  PROTOBUF_NAMESPACE_ID::Field::InitAsDefaultInstance();
 }
 
-PROTOBUF_EXPORT ::PROTOBUF_NAMESPACE_ID::internal::SCCInfo<3> scc_info_Enum_google_2fprotobuf_2ftype_2eproto =
-    {{ATOMIC_VAR_INIT(::PROTOBUF_NAMESPACE_ID::internal::SCCInfoBase::kUninitialized), 3, InitDefaultsEnum_google_2fprotobuf_2ftype_2eproto}, {
-      &scc_info_EnumValue_google_2fprotobuf_2ftype_2eproto.base,
-      &scc_info_Option_google_2fprotobuf_2ftype_2eproto.base,
-      &scc_info_SourceContext_google_2fprotobuf_2fsource_5fcontext_2eproto.base,}};
+PROTOBUF_EXPORT ::PROTOBUF_NAMESPACE_ID::internal::SCCInfo<1> scc_info_Field_google_2fprotobuf_2ftype_2eproto =
+    {{ATOMIC_VAR_INIT(::PROTOBUF_NAMESPACE_ID::internal::SCCInfoBase::kUninitialized), 1, InitDefaultsscc_info_Field_google_2fprotobuf_2ftype_2eproto}, {
+      &scc_info_Option_google_2fprotobuf_2ftype_2eproto.base,}};
 
-static void InitDefaultsEnumValue_google_2fprotobuf_2ftype_2eproto() {
+static void InitDefaultsscc_info_Option_google_2fprotobuf_2ftype_2eproto() {
   GOOGLE_PROTOBUF_VERIFY_VERSION;
 
   {
-    void* ptr = &PROTOBUF_NAMESPACE_ID::_EnumValue_default_instance_;
-    new (ptr) PROTOBUF_NAMESPACE_ID::EnumValue();
+    void* ptr = &PROTOBUF_NAMESPACE_ID::_Option_default_instance_;
+    new (ptr) PROTOBUF_NAMESPACE_ID::Option();
     ::PROTOBUF_NAMESPACE_ID::internal::OnShutdownDestroyMessage(ptr);
   }
-  PROTOBUF_NAMESPACE_ID::EnumValue::InitAsDefaultInstance();
+  PROTOBUF_NAMESPACE_ID::Option::InitAsDefaultInstance();
 }
 
-PROTOBUF_EXPORT ::PROTOBUF_NAMESPACE_ID::internal::SCCInfo<1> scc_info_EnumValue_google_2fprotobuf_2ftype_2eproto =
-    {{ATOMIC_VAR_INIT(::PROTOBUF_NAMESPACE_ID::internal::SCCInfoBase::kUninitialized), 1, InitDefaultsEnumValue_google_2fprotobuf_2ftype_2eproto}, {
-      &scc_info_Option_google_2fprotobuf_2ftype_2eproto.base,}};
+PROTOBUF_EXPORT ::PROTOBUF_NAMESPACE_ID::internal::SCCInfo<1> scc_info_Option_google_2fprotobuf_2ftype_2eproto =
+    {{ATOMIC_VAR_INIT(::PROTOBUF_NAMESPACE_ID::internal::SCCInfoBase::kUninitialized), 1, InitDefaultsscc_info_Option_google_2fprotobuf_2ftype_2eproto}, {
+      &scc_info_Any_google_2fprotobuf_2fany_2eproto.base,}};
 
-static void InitDefaultsOption_google_2fprotobuf_2ftype_2eproto() {
+static void InitDefaultsscc_info_Type_google_2fprotobuf_2ftype_2eproto() {
   GOOGLE_PROTOBUF_VERIFY_VERSION;
 
   {
-    void* ptr = &PROTOBUF_NAMESPACE_ID::_Option_default_instance_;
-    new (ptr) PROTOBUF_NAMESPACE_ID::Option();
+    void* ptr = &PROTOBUF_NAMESPACE_ID::_Type_default_instance_;
+    new (ptr) PROTOBUF_NAMESPACE_ID::Type();
     ::PROTOBUF_NAMESPACE_ID::internal::OnShutdownDestroyMessage(ptr);
   }
-  PROTOBUF_NAMESPACE_ID::Option::InitAsDefaultInstance();
+  PROTOBUF_NAMESPACE_ID::Type::InitAsDefaultInstance();
 }
 
-PROTOBUF_EXPORT ::PROTOBUF_NAMESPACE_ID::internal::SCCInfo<1> scc_info_Option_google_2fprotobuf_2ftype_2eproto =
-    {{ATOMIC_VAR_INIT(::PROTOBUF_NAMESPACE_ID::internal::SCCInfoBase::kUninitialized), 1, InitDefaultsOption_google_2fprotobuf_2ftype_2eproto}, {
-      &scc_info_Any_google_2fprotobuf_2fany_2eproto.base,}};
+PROTOBUF_EXPORT ::PROTOBUF_NAMESPACE_ID::internal::SCCInfo<3> scc_info_Type_google_2fprotobuf_2ftype_2eproto =
+    {{ATOMIC_VAR_INIT(::PROTOBUF_NAMESPACE_ID::internal::SCCInfoBase::kUninitialized), 3, InitDefaultsscc_info_Type_google_2fprotobuf_2ftype_2eproto}, {
+      &scc_info_Field_google_2fprotobuf_2ftype_2eproto.base,
+      &scc_info_Option_google_2fprotobuf_2ftype_2eproto.base,
+      &scc_info_SourceContext_google_2fprotobuf_2fsource_5fcontext_2eproto.base,}};
 
 static ::PROTOBUF_NAMESPACE_ID::Metadata file_level_metadata_google_2fprotobuf_2ftype_2eproto[5];
 static const ::PROTOBUF_NAMESPACE_ID::EnumDescriptor* file_level_enum_descriptors_google_2fprotobuf_2ftype_2eproto[3];
@@ -237,30 +236,28 @@ const char descriptor_table_protodef_google_2fprotobuf_2ftype_2eproto[] =
   "oto/protobuf/ptype;ptype\370\001\001\242\002\003GPB\252\002\036Goog"
   "le.Protobuf.WellKnownTypesb\006proto3"
   ;
+static const ::PROTOBUF_NAMESPACE_ID::internal::DescriptorTable*const descriptor_table_google_2fprotobuf_2ftype_2eproto_deps[2] = {
+  &::descriptor_table_google_2fprotobuf_2fany_2eproto,
+  &::descriptor_table_google_2fprotobuf_2fsource_5fcontext_2eproto,
+};
+static ::PROTOBUF_NAMESPACE_ID::internal::SCCInfoBase*const descriptor_table_google_2fprotobuf_2ftype_2eproto_sccs[5] = {
+  &scc_info_Enum_google_2fprotobuf_2ftype_2eproto.base,
+  &scc_info_EnumValue_google_2fprotobuf_2ftype_2eproto.base,
+  &scc_info_Field_google_2fprotobuf_2ftype_2eproto.base,
+  &scc_info_Option_google_2fprotobuf_2ftype_2eproto.base,
+  &scc_info_Type_google_2fprotobuf_2ftype_2eproto.base,
+};
 static ::PROTOBUF_NAMESPACE_ID::internal::once_flag descriptor_table_google_2fprotobuf_2ftype_2eproto_once;
-static ::PROTOBUF_NAMESPACE_ID::internal::DescriptorTable descriptor_table_google_2fprotobuf_2ftype_2eproto = {
-  false, descriptor_table_protodef_google_2fprotobuf_2ftype_2eproto, "google/protobuf/type.proto", 1594,
-  &descriptor_table_google_2fprotobuf_2ftype_2eproto_once, AddDescriptors_google_2fprotobuf_2ftype_2eproto, schemas,
-  file_default_instances, TableStruct_google_2fprotobuf_2ftype_2eproto::offsets,
+static bool descriptor_table_google_2fprotobuf_2ftype_2eproto_initialized = false;
+const ::PROTOBUF_NAMESPACE_ID::internal::DescriptorTable descriptor_table_google_2fprotobuf_2ftype_2eproto = {
+  &descriptor_table_google_2fprotobuf_2ftype_2eproto_initialized, descriptor_table_protodef_google_2fprotobuf_2ftype_2eproto, "google/protobuf/type.proto", 1594,
+  &descriptor_table_google_2fprotobuf_2ftype_2eproto_once, descriptor_table_google_2fprotobuf_2ftype_2eproto_sccs, descriptor_table_google_2fprotobuf_2ftype_2eproto_deps, 5, 2,
+  schemas, file_default_instances, TableStruct_google_2fprotobuf_2ftype_2eproto::offsets,
   file_level_metadata_google_2fprotobuf_2ftype_2eproto, 5, file_level_enum_descriptors_google_2fprotobuf_2ftype_2eproto, file_level_service_descriptors_google_2fprotobuf_2ftype_2eproto,
 };
 
-void AddDescriptors_google_2fprotobuf_2ftype_2eproto() {
-  static constexpr ::PROTOBUF_NAMESPACE_ID::internal::InitFunc deps[2] =
-  {
-    ::AddDescriptors_google_2fprotobuf_2fany_2eproto,
-    ::AddDescriptors_google_2fprotobuf_2fsource_5fcontext_2eproto,
-  };
-  ::PROTOBUF_NAMESPACE_ID::internal::InitSCC(&scc_info_Type_google_2fprotobuf_2ftype_2eproto.base);
-  ::PROTOBUF_NAMESPACE_ID::internal::InitSCC(&scc_info_Field_google_2fprotobuf_2ftype_2eproto.base);
-  ::PROTOBUF_NAMESPACE_ID::internal::InitSCC(&scc_info_Enum_google_2fprotobuf_2ftype_2eproto.base);
-  ::PROTOBUF_NAMESPACE_ID::internal::InitSCC(&scc_info_EnumValue_google_2fprotobuf_2ftype_2eproto.base);
-  ::PROTOBUF_NAMESPACE_ID::internal::InitSCC(&scc_info_Option_google_2fprotobuf_2ftype_2eproto.base);
- ::PROTOBUF_NAMESPACE_ID::internal::AddDescriptors(&descriptor_table_google_2fprotobuf_2ftype_2eproto, deps, 2);
-}
-
 // Force running AddDescriptors() at dynamic initialization time.
-static bool dynamic_init_dummy_google_2fprotobuf_2ftype_2eproto = []() { AddDescriptors_google_2fprotobuf_2ftype_2eproto(); return true; }();
+static bool dynamic_init_dummy_google_2fprotobuf_2ftype_2eproto = (  ::PROTOBUF_NAMESPACE_ID::internal::AddDescriptors(&descriptor_table_google_2fprotobuf_2ftype_2eproto), true);
 PROTOBUF_NAMESPACE_OPEN
 const ::PROTOBUF_NAMESPACE_ID::EnumDescriptor* Field_Kind_descriptor() {
   ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&descriptor_table_google_2fprotobuf_2ftype_2eproto);
@@ -437,8 +434,7 @@ Type::Type(const Type& from)
 }
 
 void Type::SharedCtor() {
-  ::PROTOBUF_NAMESPACE_ID::internal::InitSCC(
-      &scc_info_Type_google_2fprotobuf_2ftype_2eproto.base);
+  ::PROTOBUF_NAMESPACE_ID::internal::InitSCC(&scc_info_Type_google_2fprotobuf_2ftype_2eproto.base);
   name_.UnsafeSetDefault(&::PROTOBUF_NAMESPACE_ID::internal::GetEmptyStringAlreadyInited());
   ::memset(&source_context_, 0, static_cast<size_t>(
       reinterpret_cast<char*>(&syntax_) -
@@ -966,8 +962,7 @@ void Type::InternalSwap(Type* other) {
 }
 
 ::PROTOBUF_NAMESPACE_ID::Metadata Type::GetMetadata() const {
-  ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&::descriptor_table_google_2fprotobuf_2ftype_2eproto);
-  return ::file_level_metadata_google_2fprotobuf_2ftype_2eproto[kIndexInFileMessages];
+  return GetMetadataStatic();
 }
 
 
@@ -1037,8 +1032,7 @@ Field::Field(const Field& from)
 }
 
 void Field::SharedCtor() {
-  ::PROTOBUF_NAMESPACE_ID::internal::InitSCC(
-      &scc_info_Field_google_2fprotobuf_2ftype_2eproto.base);
+  ::PROTOBUF_NAMESPACE_ID::internal::InitSCC(&scc_info_Field_google_2fprotobuf_2ftype_2eproto.base);
   name_.UnsafeSetDefault(&::PROTOBUF_NAMESPACE_ID::internal::GetEmptyStringAlreadyInited());
   type_url_.UnsafeSetDefault(&::PROTOBUF_NAMESPACE_ID::internal::GetEmptyStringAlreadyInited());
   json_name_.UnsafeSetDefault(&::PROTOBUF_NAMESPACE_ID::internal::GetEmptyStringAlreadyInited());
@@ -1747,8 +1741,7 @@ void Field::InternalSwap(Field* other) {
 }
 
 ::PROTOBUF_NAMESPACE_ID::Metadata Field::GetMetadata() const {
-  ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&::descriptor_table_google_2fprotobuf_2ftype_2eproto);
-  return ::file_level_metadata_google_2fprotobuf_2ftype_2eproto[kIndexInFileMessages];
+  return GetMetadataStatic();
 }
 
 
@@ -1829,8 +1822,7 @@ Enum::Enum(const Enum& from)
 }
 
 void Enum::SharedCtor() {
-  ::PROTOBUF_NAMESPACE_ID::internal::InitSCC(
-      &scc_info_Enum_google_2fprotobuf_2ftype_2eproto.base);
+  ::PROTOBUF_NAMESPACE_ID::internal::InitSCC(&scc_info_Enum_google_2fprotobuf_2ftype_2eproto.base);
   name_.UnsafeSetDefault(&::PROTOBUF_NAMESPACE_ID::internal::GetEmptyStringAlreadyInited());
   ::memset(&source_context_, 0, static_cast<size_t>(
       reinterpret_cast<char*>(&syntax_) -
@@ -2299,8 +2291,7 @@ void Enum::InternalSwap(Enum* other) {
 }
 
 ::PROTOBUF_NAMESPACE_ID::Metadata Enum::GetMetadata() const {
-  ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&::descriptor_table_google_2fprotobuf_2ftype_2eproto);
-  return ::file_level_metadata_google_2fprotobuf_2ftype_2eproto[kIndexInFileMessages];
+  return GetMetadataStatic();
 }
 
 
@@ -2346,8 +2337,7 @@ EnumValue::EnumValue(const EnumValue& from)
 }
 
 void EnumValue::SharedCtor() {
-  ::PROTOBUF_NAMESPACE_ID::internal::InitSCC(
-      &scc_info_EnumValue_google_2fprotobuf_2ftype_2eproto.base);
+  ::PROTOBUF_NAMESPACE_ID::internal::InitSCC(&scc_info_EnumValue_google_2fprotobuf_2ftype_2eproto.base);
   name_.UnsafeSetDefault(&::PROTOBUF_NAMESPACE_ID::internal::GetEmptyStringAlreadyInited());
   number_ = 0;
 }
@@ -2710,8 +2700,7 @@ void EnumValue::InternalSwap(EnumValue* other) {
 }
 
 ::PROTOBUF_NAMESPACE_ID::Metadata EnumValue::GetMetadata() const {
-  ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&::descriptor_table_google_2fprotobuf_2ftype_2eproto);
-  return ::file_level_metadata_google_2fprotobuf_2ftype_2eproto[kIndexInFileMessages];
+  return GetMetadataStatic();
 }
 
 
@@ -2784,8 +2773,7 @@ Option::Option(const Option& from)
 }
 
 void Option::SharedCtor() {
-  ::PROTOBUF_NAMESPACE_ID::internal::InitSCC(
-      &scc_info_Option_google_2fprotobuf_2ftype_2eproto.base);
+  ::PROTOBUF_NAMESPACE_ID::internal::InitSCC(&scc_info_Option_google_2fprotobuf_2ftype_2eproto.base);
   name_.UnsafeSetDefault(&::PROTOBUF_NAMESPACE_ID::internal::GetEmptyStringAlreadyInited());
   value_ = nullptr;
 }
@@ -3099,8 +3087,7 @@ void Option::InternalSwap(Option* other) {
 }
 
 ::PROTOBUF_NAMESPACE_ID::Metadata Option::GetMetadata() const {
-  ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&::descriptor_table_google_2fprotobuf_2ftype_2eproto);
-  return ::file_level_metadata_google_2fprotobuf_2ftype_2eproto[kIndexInFileMessages];
+  return GetMetadataStatic();
 }
 
 

src/google/protobuf/type.pb.h

@@ -27,6 +27,7 @@
 #include <google/protobuf/generated_message_util.h>
 #include <google/protobuf/inlined_string_field.h>
 #include <google/protobuf/metadata.h>
+#include <google/protobuf/generated_message_reflection.h>
 #include <google/protobuf/message.h>
 #include <google/protobuf/repeated_field.h>  // IWYU pragma: export
 #include <google/protobuf/extension_set.h>  // IWYU pragma: export
@@ -55,7 +56,7 @@ struct PROTOBUF_EXPORT TableStruct_google_2fprotobuf_2ftype_2eproto {
   static const ::PROTOBUF_NAMESPACE_ID::internal::SerializationTable serialization_table[];
   static const ::PROTOBUF_NAMESPACE_ID::uint32 offsets[];
 };
-void PROTOBUF_EXPORT AddDescriptors_google_2fprotobuf_2ftype_2eproto();
+extern PROTOBUF_EXPORT const ::PROTOBUF_NAMESPACE_ID::internal::DescriptorTable descriptor_table_google_2fprotobuf_2ftype_2eproto;
 PROTOBUF_NAMESPACE_OPEN
 class Enum;
 class EnumDefaultTypeInternal;
@@ -210,7 +211,13 @@ class PROTOBUF_EXPORT Type :
     return MaybeArenaPtr();
   }
   static const ::PROTOBUF_NAMESPACE_ID::Descriptor* descriptor() {
-    return default_instance().GetDescriptor();
+    return GetDescriptor();
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Descriptor* GetDescriptor() {
+    return GetMetadataStatic().descriptor;
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Reflection* GetReflection() {
+    return GetMetadataStatic().reflection;
   }
   static const Type& default_instance();
 
@@ -281,6 +288,13 @@ class PROTOBUF_EXPORT Type :
   public:
 
   ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadata() const final;
+  private:
+  static ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadataStatic() {
+    ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&::descriptor_table_google_2fprotobuf_2ftype_2eproto);
+    return ::descriptor_table_google_2fprotobuf_2ftype_2eproto.file_level_metadata[kIndexInFileMessages];
+  }
+
+  public:
 
   // nested types ----------------------------------------------------
 
@@ -418,7 +432,13 @@ class PROTOBUF_EXPORT Field :
     return MaybeArenaPtr();
   }
   static const ::PROTOBUF_NAMESPACE_ID::Descriptor* descriptor() {
-    return default_instance().GetDescriptor();
+    return GetDescriptor();
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Descriptor* GetDescriptor() {
+    return GetMetadataStatic().descriptor;
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Reflection* GetReflection() {
+    return GetMetadataStatic().reflection;
   }
   static const Field& default_instance();
 
@@ -489,6 +509,13 @@ class PROTOBUF_EXPORT Field :
   public:
 
   ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadata() const final;
+  private:
+  static ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadataStatic() {
+    ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&::descriptor_table_google_2fprotobuf_2ftype_2eproto);
+    return ::descriptor_table_google_2fprotobuf_2ftype_2eproto.file_level_metadata[kIndexInFileMessages];
+  }
+
+  public:
 
   // nested types ----------------------------------------------------
 
@@ -773,7 +800,13 @@ class PROTOBUF_EXPORT Enum :
     return MaybeArenaPtr();
   }
   static const ::PROTOBUF_NAMESPACE_ID::Descriptor* descriptor() {
-    return default_instance().GetDescriptor();
+    return GetDescriptor();
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Descriptor* GetDescriptor() {
+    return GetMetadataStatic().descriptor;
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Reflection* GetReflection() {
+    return GetMetadataStatic().reflection;
   }
   static const Enum& default_instance();
 
@@ -844,6 +877,13 @@ class PROTOBUF_EXPORT Enum :
   public:
 
   ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadata() const final;
+  private:
+  static ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadataStatic() {
+    ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&::descriptor_table_google_2fprotobuf_2ftype_2eproto);
+    return ::descriptor_table_google_2fprotobuf_2ftype_2eproto.file_level_metadata[kIndexInFileMessages];
+  }
+
+  public:
 
   // nested types ----------------------------------------------------
 
@@ -962,7 +1002,13 @@ class PROTOBUF_EXPORT EnumValue :
     return MaybeArenaPtr();
   }
   static const ::PROTOBUF_NAMESPACE_ID::Descriptor* descriptor() {
-    return default_instance().GetDescriptor();
+    return GetDescriptor();
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Descriptor* GetDescriptor() {
+    return GetMetadataStatic().descriptor;
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Reflection* GetReflection() {
+    return GetMetadataStatic().reflection;
   }
   static const EnumValue& default_instance();
 
@@ -1033,6 +1079,13 @@ class PROTOBUF_EXPORT EnumValue :
   public:
 
   ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadata() const final;
+  private:
+  static ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadataStatic() {
+    ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&::descriptor_table_google_2fprotobuf_2ftype_2eproto);
+    return ::descriptor_table_google_2fprotobuf_2ftype_2eproto.file_level_metadata[kIndexInFileMessages];
+  }
+
+  public:
 
   // nested types ----------------------------------------------------
 
@@ -1125,7 +1178,13 @@ class PROTOBUF_EXPORT Option :
     return MaybeArenaPtr();
   }
   static const ::PROTOBUF_NAMESPACE_ID::Descriptor* descriptor() {
-    return default_instance().GetDescriptor();
+    return GetDescriptor();
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Descriptor* GetDescriptor() {
+    return GetMetadataStatic().descriptor;
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Reflection* GetReflection() {
+    return GetMetadataStatic().reflection;
   }
   static const Option& default_instance();
 
@@ -1196,6 +1255,13 @@ class PROTOBUF_EXPORT Option :
   public:
 
   ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadata() const final;
+  private:
+  static ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadataStatic() {
+    ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&::descriptor_table_google_2fprotobuf_2ftype_2eproto);
+    return ::descriptor_table_google_2fprotobuf_2ftype_2eproto.file_level_metadata[kIndexInFileMessages];
+  }
+
+  public:
 
   // nested types ----------------------------------------------------
 

src/google/protobuf/unittest_no_arena.proto

@@ -200,3 +200,7 @@ enum ForeignEnum {
 message TestNoArenaMessage {
   optional proto2_arena_unittest.ArenaMessage arena_message = 1;
 };
+
+message OneString {
+  optional string data = 1;
+}

src/google/protobuf/wrappers.pb.cc

@@ -15,7 +15,6 @@
 #include <google/protobuf/wire_format.h>
 // @@protoc_insertion_point(includes)
 #include <google/protobuf/port_def.inc>
-
 PROTOBUF_NAMESPACE_OPEN
 class DoubleValueDefaultTypeInternal {
  public:
@@ -54,63 +53,63 @@ class BytesValueDefaultTypeInternal {
   ::PROTOBUF_NAMESPACE_ID::internal::ExplicitlyConstructed<BytesValue> _instance;
 } _BytesValue_default_instance_;
 PROTOBUF_NAMESPACE_CLOSE
-static void InitDefaultsDoubleValue_google_2fprotobuf_2fwrappers_2eproto() {
+static void InitDefaultsscc_info_BoolValue_google_2fprotobuf_2fwrappers_2eproto() {
   GOOGLE_PROTOBUF_VERIFY_VERSION;
 
   {
-    void* ptr = &PROTOBUF_NAMESPACE_ID::_DoubleValue_default_instance_;
-    new (ptr) PROTOBUF_NAMESPACE_ID::DoubleValue();
+    void* ptr = &PROTOBUF_NAMESPACE_ID::_BoolValue_default_instance_;
+    new (ptr) PROTOBUF_NAMESPACE_ID::BoolValue();
     ::PROTOBUF_NAMESPACE_ID::internal::OnShutdownDestroyMessage(ptr);
   }
-  PROTOBUF_NAMESPACE_ID::DoubleValue::InitAsDefaultInstance();
+  PROTOBUF_NAMESPACE_ID::BoolValue::InitAsDefaultInstance();
 }
 
-PROTOBUF_EXPORT ::PROTOBUF_NAMESPACE_ID::internal::SCCInfo<0> scc_info_DoubleValue_google_2fprotobuf_2fwrappers_2eproto =
-    {{ATOMIC_VAR_INIT(::PROTOBUF_NAMESPACE_ID::internal::SCCInfoBase::kUninitialized), 0, InitDefaultsDoubleValue_google_2fprotobuf_2fwrappers_2eproto}, {}};
+PROTOBUF_EXPORT ::PROTOBUF_NAMESPACE_ID::internal::SCCInfo<0> scc_info_BoolValue_google_2fprotobuf_2fwrappers_2eproto =
+    {{ATOMIC_VAR_INIT(::PROTOBUF_NAMESPACE_ID::internal::SCCInfoBase::kUninitialized), 0, InitDefaultsscc_info_BoolValue_google_2fprotobuf_2fwrappers_2eproto}, {}};
 
-static void InitDefaultsFloatValue_google_2fprotobuf_2fwrappers_2eproto() {
+static void InitDefaultsscc_info_BytesValue_google_2fprotobuf_2fwrappers_2eproto() {
   GOOGLE_PROTOBUF_VERIFY_VERSION;
 
   {
-    void* ptr = &PROTOBUF_NAMESPACE_ID::_FloatValue_default_instance_;
-    new (ptr) PROTOBUF_NAMESPACE_ID::FloatValue();
+    void* ptr = &PROTOBUF_NAMESPACE_ID::_BytesValue_default_instance_;
+    new (ptr) PROTOBUF_NAMESPACE_ID::BytesValue();
     ::PROTOBUF_NAMESPACE_ID::internal::OnShutdownDestroyMessage(ptr);
   }
-  PROTOBUF_NAMESPACE_ID::FloatValue::InitAsDefaultInstance();
+  PROTOBUF_NAMESPACE_ID::BytesValue::InitAsDefaultInstance();
 }
 
-PROTOBUF_EXPORT ::PROTOBUF_NAMESPACE_ID::internal::SCCInfo<0> scc_info_FloatValue_google_2fprotobuf_2fwrappers_2eproto =
-    {{ATOMIC_VAR_INIT(::PROTOBUF_NAMESPACE_ID::internal::SCCInfoBase::kUninitialized), 0, InitDefaultsFloatValue_google_2fprotobuf_2fwrappers_2eproto}, {}};
+PROTOBUF_EXPORT ::PROTOBUF_NAMESPACE_ID::internal::SCCInfo<0> scc_info_BytesValue_google_2fprotobuf_2fwrappers_2eproto =
+    {{ATOMIC_VAR_INIT(::PROTOBUF_NAMESPACE_ID::internal::SCCInfoBase::kUninitialized), 0, InitDefaultsscc_info_BytesValue_google_2fprotobuf_2fwrappers_2eproto}, {}};
 
-static void InitDefaultsInt64Value_google_2fprotobuf_2fwrappers_2eproto() {
+static void InitDefaultsscc_info_DoubleValue_google_2fprotobuf_2fwrappers_2eproto() {
   GOOGLE_PROTOBUF_VERIFY_VERSION;
 
   {
-    void* ptr = &PROTOBUF_NAMESPACE_ID::_Int64Value_default_instance_;
-    new (ptr) PROTOBUF_NAMESPACE_ID::Int64Value();
+    void* ptr = &PROTOBUF_NAMESPACE_ID::_DoubleValue_default_instance_;
+    new (ptr) PROTOBUF_NAMESPACE_ID::DoubleValue();
     ::PROTOBUF_NAMESPACE_ID::internal::OnShutdownDestroyMessage(ptr);
   }
-  PROTOBUF_NAMESPACE_ID::Int64Value::InitAsDefaultInstance();
+  PROTOBUF_NAMESPACE_ID::DoubleValue::InitAsDefaultInstance();
 }
 
-PROTOBUF_EXPORT ::PROTOBUF_NAMESPACE_ID::internal::SCCInfo<0> scc_info_Int64Value_google_2fprotobuf_2fwrappers_2eproto =
-    {{ATOMIC_VAR_INIT(::PROTOBUF_NAMESPACE_ID::internal::SCCInfoBase::kUninitialized), 0, InitDefaultsInt64Value_google_2fprotobuf_2fwrappers_2eproto}, {}};
+PROTOBUF_EXPORT ::PROTOBUF_NAMESPACE_ID::internal::SCCInfo<0> scc_info_DoubleValue_google_2fprotobuf_2fwrappers_2eproto =
+    {{ATOMIC_VAR_INIT(::PROTOBUF_NAMESPACE_ID::internal::SCCInfoBase::kUninitialized), 0, InitDefaultsscc_info_DoubleValue_google_2fprotobuf_2fwrappers_2eproto}, {}};
 
-static void InitDefaultsUInt64Value_google_2fprotobuf_2fwrappers_2eproto() {
+static void InitDefaultsscc_info_FloatValue_google_2fprotobuf_2fwrappers_2eproto() {
   GOOGLE_PROTOBUF_VERIFY_VERSION;
 
   {
-    void* ptr = &PROTOBUF_NAMESPACE_ID::_UInt64Value_default_instance_;
-    new (ptr) PROTOBUF_NAMESPACE_ID::UInt64Value();
+    void* ptr = &PROTOBUF_NAMESPACE_ID::_FloatValue_default_instance_;
+    new (ptr) PROTOBUF_NAMESPACE_ID::FloatValue();
     ::PROTOBUF_NAMESPACE_ID::internal::OnShutdownDestroyMessage(ptr);
   }
-  PROTOBUF_NAMESPACE_ID::UInt64Value::InitAsDefaultInstance();
+  PROTOBUF_NAMESPACE_ID::FloatValue::InitAsDefaultInstance();
 }
 
-PROTOBUF_EXPORT ::PROTOBUF_NAMESPACE_ID::internal::SCCInfo<0> scc_info_UInt64Value_google_2fprotobuf_2fwrappers_2eproto =
-    {{ATOMIC_VAR_INIT(::PROTOBUF_NAMESPACE_ID::internal::SCCInfoBase::kUninitialized), 0, InitDefaultsUInt64Value_google_2fprotobuf_2fwrappers_2eproto}, {}};
+PROTOBUF_EXPORT ::PROTOBUF_NAMESPACE_ID::internal::SCCInfo<0> scc_info_FloatValue_google_2fprotobuf_2fwrappers_2eproto =
+    {{ATOMIC_VAR_INIT(::PROTOBUF_NAMESPACE_ID::internal::SCCInfoBase::kUninitialized), 0, InitDefaultsscc_info_FloatValue_google_2fprotobuf_2fwrappers_2eproto}, {}};
 
-static void InitDefaultsInt32Value_google_2fprotobuf_2fwrappers_2eproto() {
+static void InitDefaultsscc_info_Int32Value_google_2fprotobuf_2fwrappers_2eproto() {
   GOOGLE_PROTOBUF_VERIFY_VERSION;
 
   {
@@ -122,63 +121,63 @@ static void InitDefaultsInt32Value_google_2fprotobuf_2fwrappers_2eproto() {
 }
 
 PROTOBUF_EXPORT ::PROTOBUF_NAMESPACE_ID::internal::SCCInfo<0> scc_info_Int32Value_google_2fprotobuf_2fwrappers_2eproto =
-    {{ATOMIC_VAR_INIT(::PROTOBUF_NAMESPACE_ID::internal::SCCInfoBase::kUninitialized), 0, InitDefaultsInt32Value_google_2fprotobuf_2fwrappers_2eproto}, {}};
+    {{ATOMIC_VAR_INIT(::PROTOBUF_NAMESPACE_ID::internal::SCCInfoBase::kUninitialized), 0, InitDefaultsscc_info_Int32Value_google_2fprotobuf_2fwrappers_2eproto}, {}};
 
-static void InitDefaultsUInt32Value_google_2fprotobuf_2fwrappers_2eproto() {
+static void InitDefaultsscc_info_Int64Value_google_2fprotobuf_2fwrappers_2eproto() {
   GOOGLE_PROTOBUF_VERIFY_VERSION;
 
   {
-    void* ptr = &PROTOBUF_NAMESPACE_ID::_UInt32Value_default_instance_;
-    new (ptr) PROTOBUF_NAMESPACE_ID::UInt32Value();
+    void* ptr = &PROTOBUF_NAMESPACE_ID::_Int64Value_default_instance_;
+    new (ptr) PROTOBUF_NAMESPACE_ID::Int64Value();
     ::PROTOBUF_NAMESPACE_ID::internal::OnShutdownDestroyMessage(ptr);
   }
-  PROTOBUF_NAMESPACE_ID::UInt32Value::InitAsDefaultInstance();
+  PROTOBUF_NAMESPACE_ID::Int64Value::InitAsDefaultInstance();
 }
 
-PROTOBUF_EXPORT ::PROTOBUF_NAMESPACE_ID::internal::SCCInfo<0> scc_info_UInt32Value_google_2fprotobuf_2fwrappers_2eproto =
-    {{ATOMIC_VAR_INIT(::PROTOBUF_NAMESPACE_ID::internal::SCCInfoBase::kUninitialized), 0, InitDefaultsUInt32Value_google_2fprotobuf_2fwrappers_2eproto}, {}};
+PROTOBUF_EXPORT ::PROTOBUF_NAMESPACE_ID::internal::SCCInfo<0> scc_info_Int64Value_google_2fprotobuf_2fwrappers_2eproto =
+    {{ATOMIC_VAR_INIT(::PROTOBUF_NAMESPACE_ID::internal::SCCInfoBase::kUninitialized), 0, InitDefaultsscc_info_Int64Value_google_2fprotobuf_2fwrappers_2eproto}, {}};
 
-static void InitDefaultsBoolValue_google_2fprotobuf_2fwrappers_2eproto() {
+static void InitDefaultsscc_info_StringValue_google_2fprotobuf_2fwrappers_2eproto() {
   GOOGLE_PROTOBUF_VERIFY_VERSION;
 
   {
-    void* ptr = &PROTOBUF_NAMESPACE_ID::_BoolValue_default_instance_;
-    new (ptr) PROTOBUF_NAMESPACE_ID::BoolValue();
+    void* ptr = &PROTOBUF_NAMESPACE_ID::_StringValue_default_instance_;
+    new (ptr) PROTOBUF_NAMESPACE_ID::StringValue();
     ::PROTOBUF_NAMESPACE_ID::internal::OnShutdownDestroyMessage(ptr);
   }
-  PROTOBUF_NAMESPACE_ID::BoolValue::InitAsDefaultInstance();
+  PROTOBUF_NAMESPACE_ID::StringValue::InitAsDefaultInstance();
 }
 
-PROTOBUF_EXPORT ::PROTOBUF_NAMESPACE_ID::internal::SCCInfo<0> scc_info_BoolValue_google_2fprotobuf_2fwrappers_2eproto =
-    {{ATOMIC_VAR_INIT(::PROTOBUF_NAMESPACE_ID::internal::SCCInfoBase::kUninitialized), 0, InitDefaultsBoolValue_google_2fprotobuf_2fwrappers_2eproto}, {}};
+PROTOBUF_EXPORT ::PROTOBUF_NAMESPACE_ID::internal::SCCInfo<0> scc_info_StringValue_google_2fprotobuf_2fwrappers_2eproto =
+    {{ATOMIC_VAR_INIT(::PROTOBUF_NAMESPACE_ID::internal::SCCInfoBase::kUninitialized), 0, InitDefaultsscc_info_StringValue_google_2fprotobuf_2fwrappers_2eproto}, {}};
 
-static void InitDefaultsStringValue_google_2fprotobuf_2fwrappers_2eproto() {
+static void InitDefaultsscc_info_UInt32Value_google_2fprotobuf_2fwrappers_2eproto() {
   GOOGLE_PROTOBUF_VERIFY_VERSION;
 
   {
-    void* ptr = &PROTOBUF_NAMESPACE_ID::_StringValue_default_instance_;
-    new (ptr) PROTOBUF_NAMESPACE_ID::StringValue();
+    void* ptr = &PROTOBUF_NAMESPACE_ID::_UInt32Value_default_instance_;
+    new (ptr) PROTOBUF_NAMESPACE_ID::UInt32Value();
     ::PROTOBUF_NAMESPACE_ID::internal::OnShutdownDestroyMessage(ptr);
   }
-  PROTOBUF_NAMESPACE_ID::StringValue::InitAsDefaultInstance();
+  PROTOBUF_NAMESPACE_ID::UInt32Value::InitAsDefaultInstance();
 }
 
-PROTOBUF_EXPORT ::PROTOBUF_NAMESPACE_ID::internal::SCCInfo<0> scc_info_StringValue_google_2fprotobuf_2fwrappers_2eproto =
-    {{ATOMIC_VAR_INIT(::PROTOBUF_NAMESPACE_ID::internal::SCCInfoBase::kUninitialized), 0, InitDefaultsStringValue_google_2fprotobuf_2fwrappers_2eproto}, {}};
+PROTOBUF_EXPORT ::PROTOBUF_NAMESPACE_ID::internal::SCCInfo<0> scc_info_UInt32Value_google_2fprotobuf_2fwrappers_2eproto =
+    {{ATOMIC_VAR_INIT(::PROTOBUF_NAMESPACE_ID::internal::SCCInfoBase::kUninitialized), 0, InitDefaultsscc_info_UInt32Value_google_2fprotobuf_2fwrappers_2eproto}, {}};
 
-static void InitDefaultsBytesValue_google_2fprotobuf_2fwrappers_2eproto() {
+static void InitDefaultsscc_info_UInt64Value_google_2fprotobuf_2fwrappers_2eproto() {
   GOOGLE_PROTOBUF_VERIFY_VERSION;
 
   {
-    void* ptr = &PROTOBUF_NAMESPACE_ID::_BytesValue_default_instance_;
-    new (ptr) PROTOBUF_NAMESPACE_ID::BytesValue();
+    void* ptr = &PROTOBUF_NAMESPACE_ID::_UInt64Value_default_instance_;
+    new (ptr) PROTOBUF_NAMESPACE_ID::UInt64Value();
     ::PROTOBUF_NAMESPACE_ID::internal::OnShutdownDestroyMessage(ptr);
   }
-  PROTOBUF_NAMESPACE_ID::BytesValue::InitAsDefaultInstance();
+  PROTOBUF_NAMESPACE_ID::UInt64Value::InitAsDefaultInstance();
 }
 
-PROTOBUF_EXPORT ::PROTOBUF_NAMESPACE_ID::internal::SCCInfo<0> scc_info_BytesValue_google_2fprotobuf_2fwrappers_2eproto =
-    {{ATOMIC_VAR_INIT(::PROTOBUF_NAMESPACE_ID::internal::SCCInfoBase::kUninitialized), 0, InitDefaultsBytesValue_google_2fprotobuf_2fwrappers_2eproto}, {}};
+PROTOBUF_EXPORT ::PROTOBUF_NAMESPACE_ID::internal::SCCInfo<0> scc_info_UInt64Value_google_2fprotobuf_2fwrappers_2eproto =
+    {{ATOMIC_VAR_INIT(::PROTOBUF_NAMESPACE_ID::internal::SCCInfoBase::kUninitialized), 0, InitDefaultsscc_info_UInt64Value_google_2fprotobuf_2fwrappers_2eproto}, {}};
 
 static ::PROTOBUF_NAMESPACE_ID::Metadata file_level_metadata_google_2fprotobuf_2fwrappers_2eproto[9];
 static constexpr ::PROTOBUF_NAMESPACE_ID::EnumDescriptor const** file_level_enum_descriptors_google_2fprotobuf_2fwrappers_2eproto = nullptr;
@@ -278,32 +277,30 @@ const char descriptor_table_protodef_google_2fprotobuf_2fwrappers_2eproto[] =
   "\242\002\003GPB\252\002\036Google.Protobuf.WellKnownTypesb"
   "\006proto3"
   ;
+static const ::PROTOBUF_NAMESPACE_ID::internal::DescriptorTable*const descriptor_table_google_2fprotobuf_2fwrappers_2eproto_deps[1] = {
+};
+static ::PROTOBUF_NAMESPACE_ID::internal::SCCInfoBase*const descriptor_table_google_2fprotobuf_2fwrappers_2eproto_sccs[9] = {
+  &scc_info_BoolValue_google_2fprotobuf_2fwrappers_2eproto.base,
+  &scc_info_BytesValue_google_2fprotobuf_2fwrappers_2eproto.base,
+  &scc_info_DoubleValue_google_2fprotobuf_2fwrappers_2eproto.base,
+  &scc_info_FloatValue_google_2fprotobuf_2fwrappers_2eproto.base,
+  &scc_info_Int32Value_google_2fprotobuf_2fwrappers_2eproto.base,
+  &scc_info_Int64Value_google_2fprotobuf_2fwrappers_2eproto.base,
+  &scc_info_StringValue_google_2fprotobuf_2fwrappers_2eproto.base,
+  &scc_info_UInt32Value_google_2fprotobuf_2fwrappers_2eproto.base,
+  &scc_info_UInt64Value_google_2fprotobuf_2fwrappers_2eproto.base,
+};
 static ::PROTOBUF_NAMESPACE_ID::internal::once_flag descriptor_table_google_2fprotobuf_2fwrappers_2eproto_once;
-static ::PROTOBUF_NAMESPACE_ID::internal::DescriptorTable descriptor_table_google_2fprotobuf_2fwrappers_2eproto = {
-  false, descriptor_table_protodef_google_2fprotobuf_2fwrappers_2eproto, "google/protobuf/wrappers.proto", 447,
-  &descriptor_table_google_2fprotobuf_2fwrappers_2eproto_once, AddDescriptors_google_2fprotobuf_2fwrappers_2eproto, schemas,
-  file_default_instances, TableStruct_google_2fprotobuf_2fwrappers_2eproto::offsets,
+static bool descriptor_table_google_2fprotobuf_2fwrappers_2eproto_initialized = false;
+const ::PROTOBUF_NAMESPACE_ID::internal::DescriptorTable descriptor_table_google_2fprotobuf_2fwrappers_2eproto = {
+  &descriptor_table_google_2fprotobuf_2fwrappers_2eproto_initialized, descriptor_table_protodef_google_2fprotobuf_2fwrappers_2eproto, "google/protobuf/wrappers.proto", 447,
+  &descriptor_table_google_2fprotobuf_2fwrappers_2eproto_once, descriptor_table_google_2fprotobuf_2fwrappers_2eproto_sccs, descriptor_table_google_2fprotobuf_2fwrappers_2eproto_deps, 9, 0,
+  schemas, file_default_instances, TableStruct_google_2fprotobuf_2fwrappers_2eproto::offsets,
   file_level_metadata_google_2fprotobuf_2fwrappers_2eproto, 9, file_level_enum_descriptors_google_2fprotobuf_2fwrappers_2eproto, file_level_service_descriptors_google_2fprotobuf_2fwrappers_2eproto,
 };
 
-void AddDescriptors_google_2fprotobuf_2fwrappers_2eproto() {
-  static constexpr ::PROTOBUF_NAMESPACE_ID::internal::InitFunc deps[1] =
-  {
-  };
-  ::PROTOBUF_NAMESPACE_ID::internal::InitSCC(&scc_info_DoubleValue_google_2fprotobuf_2fwrappers_2eproto.base);
-  ::PROTOBUF_NAMESPACE_ID::internal::InitSCC(&scc_info_FloatValue_google_2fprotobuf_2fwrappers_2eproto.base);
-  ::PROTOBUF_NAMESPACE_ID::internal::InitSCC(&scc_info_Int64Value_google_2fprotobuf_2fwrappers_2eproto.base);
-  ::PROTOBUF_NAMESPACE_ID::internal::InitSCC(&scc_info_UInt64Value_google_2fprotobuf_2fwrappers_2eproto.base);
-  ::PROTOBUF_NAMESPACE_ID::internal::InitSCC(&scc_info_Int32Value_google_2fprotobuf_2fwrappers_2eproto.base);
-  ::PROTOBUF_NAMESPACE_ID::internal::InitSCC(&scc_info_UInt32Value_google_2fprotobuf_2fwrappers_2eproto.base);
-  ::PROTOBUF_NAMESPACE_ID::internal::InitSCC(&scc_info_BoolValue_google_2fprotobuf_2fwrappers_2eproto.base);
-  ::PROTOBUF_NAMESPACE_ID::internal::InitSCC(&scc_info_StringValue_google_2fprotobuf_2fwrappers_2eproto.base);
-  ::PROTOBUF_NAMESPACE_ID::internal::InitSCC(&scc_info_BytesValue_google_2fprotobuf_2fwrappers_2eproto.base);
- ::PROTOBUF_NAMESPACE_ID::internal::AddDescriptors(&descriptor_table_google_2fprotobuf_2fwrappers_2eproto, deps, 0);
-}
-
 // Force running AddDescriptors() at dynamic initialization time.
-static bool dynamic_init_dummy_google_2fprotobuf_2fwrappers_2eproto = []() { AddDescriptors_google_2fprotobuf_2fwrappers_2eproto(); return true; }();
+static bool dynamic_init_dummy_google_2fprotobuf_2fwrappers_2eproto = (  ::PROTOBUF_NAMESPACE_ID::internal::AddDescriptors(&descriptor_table_google_2fprotobuf_2fwrappers_2eproto), true);
 PROTOBUF_NAMESPACE_OPEN
 
 // ===================================================================
@@ -587,8 +584,7 @@ void DoubleValue::InternalSwap(DoubleValue* other) {
 }
 
 ::PROTOBUF_NAMESPACE_ID::Metadata DoubleValue::GetMetadata() const {
-  ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&::descriptor_table_google_2fprotobuf_2fwrappers_2eproto);
-  return ::file_level_metadata_google_2fprotobuf_2fwrappers_2eproto[kIndexInFileMessages];
+  return GetMetadataStatic();
 }
 
 
@@ -873,8 +869,7 @@ void FloatValue::InternalSwap(FloatValue* other) {
 }
 
 ::PROTOBUF_NAMESPACE_ID::Metadata FloatValue::GetMetadata() const {
-  ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&::descriptor_table_google_2fprotobuf_2fwrappers_2eproto);
-  return ::file_level_metadata_google_2fprotobuf_2fwrappers_2eproto[kIndexInFileMessages];
+  return GetMetadataStatic();
 }
 
 
@@ -1161,8 +1156,7 @@ void Int64Value::InternalSwap(Int64Value* other) {
 }
 
 ::PROTOBUF_NAMESPACE_ID::Metadata Int64Value::GetMetadata() const {
-  ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&::descriptor_table_google_2fprotobuf_2fwrappers_2eproto);
-  return ::file_level_metadata_google_2fprotobuf_2fwrappers_2eproto[kIndexInFileMessages];
+  return GetMetadataStatic();
 }
 
 
@@ -1449,8 +1443,7 @@ void UInt64Value::InternalSwap(UInt64Value* other) {
 }
 
 ::PROTOBUF_NAMESPACE_ID::Metadata UInt64Value::GetMetadata() const {
-  ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&::descriptor_table_google_2fprotobuf_2fwrappers_2eproto);
-  return ::file_level_metadata_google_2fprotobuf_2fwrappers_2eproto[kIndexInFileMessages];
+  return GetMetadataStatic();
 }
 
 
@@ -1737,8 +1730,7 @@ void Int32Value::InternalSwap(Int32Value* other) {
 }
 
 ::PROTOBUF_NAMESPACE_ID::Metadata Int32Value::GetMetadata() const {
-  ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&::descriptor_table_google_2fprotobuf_2fwrappers_2eproto);
-  return ::file_level_metadata_google_2fprotobuf_2fwrappers_2eproto[kIndexInFileMessages];
+  return GetMetadataStatic();
 }
 
 
@@ -2025,8 +2017,7 @@ void UInt32Value::InternalSwap(UInt32Value* other) {
 }
 
 ::PROTOBUF_NAMESPACE_ID::Metadata UInt32Value::GetMetadata() const {
-  ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&::descriptor_table_google_2fprotobuf_2fwrappers_2eproto);
-  return ::file_level_metadata_google_2fprotobuf_2fwrappers_2eproto[kIndexInFileMessages];
+  return GetMetadataStatic();
 }
 
 
@@ -2311,8 +2302,7 @@ void BoolValue::InternalSwap(BoolValue* other) {
 }
 
 ::PROTOBUF_NAMESPACE_ID::Metadata BoolValue::GetMetadata() const {
-  ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&::descriptor_table_google_2fprotobuf_2fwrappers_2eproto);
-  return ::file_level_metadata_google_2fprotobuf_2fwrappers_2eproto[kIndexInFileMessages];
+  return GetMetadataStatic();
 }
 
 
@@ -2353,8 +2343,7 @@ StringValue::StringValue(const StringValue& from)
 }
 
 void StringValue::SharedCtor() {
-  ::PROTOBUF_NAMESPACE_ID::internal::InitSCC(
-      &scc_info_StringValue_google_2fprotobuf_2fwrappers_2eproto.base);
+  ::PROTOBUF_NAMESPACE_ID::internal::InitSCC(&scc_info_StringValue_google_2fprotobuf_2fwrappers_2eproto.base);
   value_.UnsafeSetDefault(&::PROTOBUF_NAMESPACE_ID::internal::GetEmptyStringAlreadyInited());
 }
 
@@ -2620,8 +2609,7 @@ void StringValue::InternalSwap(StringValue* other) {
 }
 
 ::PROTOBUF_NAMESPACE_ID::Metadata StringValue::GetMetadata() const {
-  ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&::descriptor_table_google_2fprotobuf_2fwrappers_2eproto);
-  return ::file_level_metadata_google_2fprotobuf_2fwrappers_2eproto[kIndexInFileMessages];
+  return GetMetadataStatic();
 }
 
 
@@ -2662,8 +2650,7 @@ BytesValue::BytesValue(const BytesValue& from)
 }
 
 void BytesValue::SharedCtor() {
-  ::PROTOBUF_NAMESPACE_ID::internal::InitSCC(
-      &scc_info_BytesValue_google_2fprotobuf_2fwrappers_2eproto.base);
+  ::PROTOBUF_NAMESPACE_ID::internal::InitSCC(&scc_info_BytesValue_google_2fprotobuf_2fwrappers_2eproto.base);
   value_.UnsafeSetDefault(&::PROTOBUF_NAMESPACE_ID::internal::GetEmptyStringAlreadyInited());
 }
 
@@ -2917,8 +2904,7 @@ void BytesValue::InternalSwap(BytesValue* other) {
 }
 
 ::PROTOBUF_NAMESPACE_ID::Metadata BytesValue::GetMetadata() const {
-  ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&::descriptor_table_google_2fprotobuf_2fwrappers_2eproto);
-  return ::file_level_metadata_google_2fprotobuf_2fwrappers_2eproto[kIndexInFileMessages];
+  return GetMetadataStatic();
 }
 
 

src/google/protobuf/wrappers.pb.h

@@ -27,6 +27,7 @@
 #include <google/protobuf/generated_message_util.h>
 #include <google/protobuf/inlined_string_field.h>
 #include <google/protobuf/metadata.h>
+#include <google/protobuf/generated_message_reflection.h>
 #include <google/protobuf/message.h>
 #include <google/protobuf/repeated_field.h>  // IWYU pragma: export
 #include <google/protobuf/extension_set.h>  // IWYU pragma: export
@@ -52,7 +53,7 @@ struct PROTOBUF_EXPORT TableStruct_google_2fprotobuf_2fwrappers_2eproto {
   static const ::PROTOBUF_NAMESPACE_ID::internal::SerializationTable serialization_table[];
   static const ::PROTOBUF_NAMESPACE_ID::uint32 offsets[];
 };
-void PROTOBUF_EXPORT AddDescriptors_google_2fprotobuf_2fwrappers_2eproto();
+extern PROTOBUF_EXPORT const ::PROTOBUF_NAMESPACE_ID::internal::DescriptorTable descriptor_table_google_2fprotobuf_2fwrappers_2eproto;
 PROTOBUF_NAMESPACE_OPEN
 class BoolValue;
 class BoolValueDefaultTypeInternal;
@@ -129,7 +130,13 @@ class PROTOBUF_EXPORT DoubleValue :
     return MaybeArenaPtr();
   }
   static const ::PROTOBUF_NAMESPACE_ID::Descriptor* descriptor() {
-    return default_instance().GetDescriptor();
+    return GetDescriptor();
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Descriptor* GetDescriptor() {
+    return GetMetadataStatic().descriptor;
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Reflection* GetReflection() {
+    return GetMetadataStatic().reflection;
   }
   static const DoubleValue& default_instance();
 
@@ -200,6 +207,13 @@ class PROTOBUF_EXPORT DoubleValue :
   public:
 
   ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadata() const final;
+  private:
+  static ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadataStatic() {
+    ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&::descriptor_table_google_2fprotobuf_2fwrappers_2eproto);
+    return ::descriptor_table_google_2fprotobuf_2fwrappers_2eproto.file_level_metadata[kIndexInFileMessages];
+  }
+
+  public:
 
   // nested types ----------------------------------------------------
 
@@ -257,7 +271,13 @@ class PROTOBUF_EXPORT FloatValue :
     return MaybeArenaPtr();
   }
   static const ::PROTOBUF_NAMESPACE_ID::Descriptor* descriptor() {
-    return default_instance().GetDescriptor();
+    return GetDescriptor();
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Descriptor* GetDescriptor() {
+    return GetMetadataStatic().descriptor;
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Reflection* GetReflection() {
+    return GetMetadataStatic().reflection;
   }
   static const FloatValue& default_instance();
 
@@ -328,6 +348,13 @@ class PROTOBUF_EXPORT FloatValue :
   public:
 
   ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadata() const final;
+  private:
+  static ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadataStatic() {
+    ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&::descriptor_table_google_2fprotobuf_2fwrappers_2eproto);
+    return ::descriptor_table_google_2fprotobuf_2fwrappers_2eproto.file_level_metadata[kIndexInFileMessages];
+  }
+
+  public:
 
   // nested types ----------------------------------------------------
 
@@ -385,7 +412,13 @@ class PROTOBUF_EXPORT Int64Value :
     return MaybeArenaPtr();
   }
   static const ::PROTOBUF_NAMESPACE_ID::Descriptor* descriptor() {
-    return default_instance().GetDescriptor();
+    return GetDescriptor();
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Descriptor* GetDescriptor() {
+    return GetMetadataStatic().descriptor;
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Reflection* GetReflection() {
+    return GetMetadataStatic().reflection;
   }
   static const Int64Value& default_instance();
 
@@ -456,6 +489,13 @@ class PROTOBUF_EXPORT Int64Value :
   public:
 
   ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadata() const final;
+  private:
+  static ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadataStatic() {
+    ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&::descriptor_table_google_2fprotobuf_2fwrappers_2eproto);
+    return ::descriptor_table_google_2fprotobuf_2fwrappers_2eproto.file_level_metadata[kIndexInFileMessages];
+  }
+
+  public:
 
   // nested types ----------------------------------------------------
 
@@ -513,7 +553,13 @@ class PROTOBUF_EXPORT UInt64Value :
     return MaybeArenaPtr();
   }
   static const ::PROTOBUF_NAMESPACE_ID::Descriptor* descriptor() {
-    return default_instance().GetDescriptor();
+    return GetDescriptor();
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Descriptor* GetDescriptor() {
+    return GetMetadataStatic().descriptor;
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Reflection* GetReflection() {
+    return GetMetadataStatic().reflection;
   }
   static const UInt64Value& default_instance();
 
@@ -584,6 +630,13 @@ class PROTOBUF_EXPORT UInt64Value :
   public:
 
   ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadata() const final;
+  private:
+  static ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadataStatic() {
+    ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&::descriptor_table_google_2fprotobuf_2fwrappers_2eproto);
+    return ::descriptor_table_google_2fprotobuf_2fwrappers_2eproto.file_level_metadata[kIndexInFileMessages];
+  }
+
+  public:
 
   // nested types ----------------------------------------------------
 
@@ -641,7 +694,13 @@ class PROTOBUF_EXPORT Int32Value :
     return MaybeArenaPtr();
   }
   static const ::PROTOBUF_NAMESPACE_ID::Descriptor* descriptor() {
-    return default_instance().GetDescriptor();
+    return GetDescriptor();
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Descriptor* GetDescriptor() {
+    return GetMetadataStatic().descriptor;
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Reflection* GetReflection() {
+    return GetMetadataStatic().reflection;
   }
   static const Int32Value& default_instance();
 
@@ -712,6 +771,13 @@ class PROTOBUF_EXPORT Int32Value :
   public:
 
   ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadata() const final;
+  private:
+  static ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadataStatic() {
+    ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&::descriptor_table_google_2fprotobuf_2fwrappers_2eproto);
+    return ::descriptor_table_google_2fprotobuf_2fwrappers_2eproto.file_level_metadata[kIndexInFileMessages];
+  }
+
+  public:
 
   // nested types ----------------------------------------------------
 
@@ -769,7 +835,13 @@ class PROTOBUF_EXPORT UInt32Value :
     return MaybeArenaPtr();
   }
   static const ::PROTOBUF_NAMESPACE_ID::Descriptor* descriptor() {
-    return default_instance().GetDescriptor();
+    return GetDescriptor();
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Descriptor* GetDescriptor() {
+    return GetMetadataStatic().descriptor;
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Reflection* GetReflection() {
+    return GetMetadataStatic().reflection;
   }
   static const UInt32Value& default_instance();
 
@@ -840,6 +912,13 @@ class PROTOBUF_EXPORT UInt32Value :
   public:
 
   ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadata() const final;
+  private:
+  static ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadataStatic() {
+    ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&::descriptor_table_google_2fprotobuf_2fwrappers_2eproto);
+    return ::descriptor_table_google_2fprotobuf_2fwrappers_2eproto.file_level_metadata[kIndexInFileMessages];
+  }
+
+  public:
 
   // nested types ----------------------------------------------------
 
@@ -897,7 +976,13 @@ class PROTOBUF_EXPORT BoolValue :
     return MaybeArenaPtr();
   }
   static const ::PROTOBUF_NAMESPACE_ID::Descriptor* descriptor() {
-    return default_instance().GetDescriptor();
+    return GetDescriptor();
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Descriptor* GetDescriptor() {
+    return GetMetadataStatic().descriptor;
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Reflection* GetReflection() {
+    return GetMetadataStatic().reflection;
   }
   static const BoolValue& default_instance();
 
@@ -968,6 +1053,13 @@ class PROTOBUF_EXPORT BoolValue :
   public:
 
   ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadata() const final;
+  private:
+  static ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadataStatic() {
+    ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&::descriptor_table_google_2fprotobuf_2fwrappers_2eproto);
+    return ::descriptor_table_google_2fprotobuf_2fwrappers_2eproto.file_level_metadata[kIndexInFileMessages];
+  }
+
+  public:
 
   // nested types ----------------------------------------------------
 
@@ -1025,7 +1117,13 @@ class PROTOBUF_EXPORT StringValue :
     return MaybeArenaPtr();
   }
   static const ::PROTOBUF_NAMESPACE_ID::Descriptor* descriptor() {
-    return default_instance().GetDescriptor();
+    return GetDescriptor();
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Descriptor* GetDescriptor() {
+    return GetMetadataStatic().descriptor;
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Reflection* GetReflection() {
+    return GetMetadataStatic().reflection;
   }
   static const StringValue& default_instance();
 
@@ -1096,6 +1194,13 @@ class PROTOBUF_EXPORT StringValue :
   public:
 
   ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadata() const final;
+  private:
+  static ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadataStatic() {
+    ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&::descriptor_table_google_2fprotobuf_2fwrappers_2eproto);
+    return ::descriptor_table_google_2fprotobuf_2fwrappers_2eproto.file_level_metadata[kIndexInFileMessages];
+  }
+
+  public:
 
   // nested types ----------------------------------------------------
 
@@ -1168,7 +1273,13 @@ class PROTOBUF_EXPORT BytesValue :
     return MaybeArenaPtr();
   }
   static const ::PROTOBUF_NAMESPACE_ID::Descriptor* descriptor() {
-    return default_instance().GetDescriptor();
+    return GetDescriptor();
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Descriptor* GetDescriptor() {
+    return GetMetadataStatic().descriptor;
+  }
+  static const ::PROTOBUF_NAMESPACE_ID::Reflection* GetReflection() {
+    return GetMetadataStatic().reflection;
   }
   static const BytesValue& default_instance();
 
@@ -1239,6 +1350,13 @@ class PROTOBUF_EXPORT BytesValue :
   public:
 
   ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadata() const final;
+  private:
+  static ::PROTOBUF_NAMESPACE_ID::Metadata GetMetadataStatic() {
+    ::PROTOBUF_NAMESPACE_ID::internal::AssignDescriptors(&::descriptor_table_google_2fprotobuf_2fwrappers_2eproto);
+    return ::descriptor_table_google_2fprotobuf_2fwrappers_2eproto.file_level_metadata[kIndexInFileMessages];
+  }
+
+  public:
 
   // nested types ----------------------------------------------------