google · osa1 · Nov 14, 2025 · Nov 14, 2025 · Nov 17, 2025 · Nov 17, 2025
diff --git a/protobuf/lib/meta.dart b/protobuf/lib/meta.dart
@@ -2,6 +2,8 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
+// @dart=3.7
+
 /// Provides metadata about GeneratedMessage and ProtobufEnum to
 /// dart-protoc-plugin. (Experimental API; subject to change.)
 /// @nodoc

diff --git a/protobuf/lib/protobuf.dart b/protobuf/lib/protobuf.dart
@@ -2,6 +2,8 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
+// @dart=3.7
+
 /// Runtime library for Dart implementation of [protobufs][1].
 ///
 /// [1]: https://developers.google.com/protocol-buffers

diff --git a/protobuf/lib/src/protobuf/annotations.dart b/protobuf/lib/src/protobuf/annotations.dart
@@ -2,6 +2,8 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
+// @dart=3.7
+
 /// Annotation for marking accessors that belong together.
 class TagNumber {
   final int tagNumber;

diff --git a/protobuf/lib/src/protobuf/builder_info.dart b/protobuf/lib/src/protobuf/builder_info.dart
@@ -2,6 +2,8 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
+// @dart=3.7
+
 part of 'internal.dart';
 
 /// Per-message type setup.

diff --git a/protobuf/lib/src/protobuf/coded_buffer.dart b/protobuf/lib/src/protobuf/coded_buffer.dart
@@ -2,6 +2,8 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
+// @dart=3.7
+
 part of 'internal.dart';
 
 void _writeToCodedBufferWriter(FieldSet fs, CodedBufferWriter out) {

diff --git a/protobuf/lib/src/protobuf/coded_buffer_reader.dart b/protobuf/lib/src/protobuf/coded_buffer_reader.dart
@@ -2,6 +2,8 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
+// @dart=3.7
+
 part of 'internal.dart';
 
 /// Reader used for converting binary-encoded protobufs into

diff --git a/protobuf/lib/src/protobuf/coded_buffer_writer.dart b/protobuf/lib/src/protobuf/coded_buffer_writer.dart
@@ -2,6 +2,8 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
+// @dart=3.7
+
 // ignore_for_file: constant_identifier_names
 
 part of 'internal.dart';

diff --git a/protobuf/lib/src/protobuf/consts.dart b/protobuf/lib/src/protobuf/consts.dart
@@ -2,6 +2,8 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
+// @dart=3.7
+
 /// Constant string value of `double.infinity.toString()` and the infinity
 /// value recognized by `double.parse(..)`.
 const infinity = 'Infinity';

diff --git a/protobuf/lib/src/protobuf/exceptions.dart b/protobuf/lib/src/protobuf/exceptions.dart
@@ -2,6 +2,8 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
+// @dart=3.7
+
 const _truncatedMessageText = '''
 While parsing a protocol message, the input ended unexpectedly
 in the middle of a field. This could either mean that the input

diff --git a/protobuf/lib/src/protobuf/extension.dart b/protobuf/lib/src/protobuf/extension.dart
@@ -2,6 +2,8 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
+// @dart=3.7
+
 part of 'internal.dart';
 
 /// An object representing an extension field.

diff --git a/protobuf/lib/src/protobuf/extension_field_set.dart b/protobuf/lib/src/protobuf/extension_field_set.dart
@@ -2,6 +2,8 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
+// @dart=3.7
+
 part of 'internal.dart';
 
 class ExtensionFieldSet {

diff --git a/protobuf/lib/src/protobuf/extension_registry.dart b/protobuf/lib/src/protobuf/extension_registry.dart
@@ -2,6 +2,8 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
+// @dart=3.7
+
 part of 'internal.dart';
 
 /// A collection of [Extension] objects, organized by the message type they

diff --git a/protobuf/lib/src/protobuf/field_error.dart b/protobuf/lib/src/protobuf/field_error.dart
@@ -2,6 +2,8 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
+// @dart=3.7
+
 part of 'internal.dart';
 
 /// Returns the error message for an invalid field value,

diff --git a/protobuf/lib/src/protobuf/field_info.dart b/protobuf/lib/src/protobuf/field_info.dart
@@ -2,6 +2,8 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
+// @dart=3.7
+
 part of 'internal.dart';
 
 /// An object representing a protobuf message field.

diff --git a/protobuf/lib/src/protobuf/field_set.dart b/protobuf/lib/src/protobuf/field_set.dart
@@ -2,6 +2,8 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
+// @dart=3.7
+
 part of 'internal.dart';
 
 @pragma('vm:never-inline')

diff --git a/protobuf/lib/src/protobuf/field_type.dart b/protobuf/lib/src/protobuf/field_type.dart
@@ -2,6 +2,8 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
+// @dart=3.7
+
 // ignore_for_file: constant_identifier_names,non_constant_identifier_names
 part of 'internal.dart';
 

diff --git a/protobuf/lib/src/protobuf/generated_message.dart b/protobuf/lib/src/protobuf/generated_message.dart
@@ -2,6 +2,8 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
+// @dart=3.7
+
 // ignore_for_file: non_constant_identifier_names
 
 part of 'internal.dart';

diff --git a/protobuf/lib/src/protobuf/generated_service.dart b/protobuf/lib/src/protobuf/generated_service.dart
@@ -2,6 +2,8 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
+// @dart=3.7
+
 part of 'internal.dart';
 
 /// Server side context.

diff --git a/protobuf/lib/src/protobuf/internal.dart b/protobuf/lib/src/protobuf/internal.dart
@@ -2,6 +2,8 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
+// @dart=3.7
+
 /// Runtime library for Dart implementation of [protobufs][1].
 ///
 /// [1]: https://developers.google.com/protocol-buffers
@@ -26,7 +28,7 @@ import 'permissive_compare.dart';
 import 'type_registry.dart';
 import 'utils.dart';
 
-export 'annotations.dart' show TagNumber, GrpcServiceName;
+export 'annotations.dart' show GrpcServiceName, TagNumber;
 export 'exceptions.dart' show InvalidProtocolBufferException;
 export 'pb_list.dart' show PbList;
 export 'pb_map.dart' show PbMap;

diff --git a/protobuf/lib/src/protobuf/json/json.dart b/protobuf/lib/src/protobuf/json/json.dart
@@ -2,6 +2,8 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
+// @dart=3.7
+
 import 'dart:convert' show base64Decode, base64Encode;
 
 import 'package:fixnum/fixnum.dart' show Int64;

diff --git a/protobuf/lib/src/protobuf/json/json_vm.dart b/protobuf/lib/src/protobuf/json/json_vm.dart
@@ -2,6 +2,8 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
+// @dart=3.7
+
 import 'dart:convert' show jsonDecode, jsonEncode;
 
 import '../internal.dart';

diff --git a/protobuf/lib/src/protobuf/json/json_web.dart b/protobuf/lib/src/protobuf/json/json_web.dart
@@ -2,6 +2,8 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
+// @dart=3.7
+
 import 'dart:convert' show base64Decode, base64Encode;
 import 'dart:js_interop';
 import 'dart:js_interop_unsafe';

diff --git a/protobuf/lib/src/protobuf/json_parsing_context.dart b/protobuf/lib/src/protobuf/json_parsing_context.dart
@@ -2,6 +2,8 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
+// @dart=3.7
+
 class JsonParsingContext {
   // A list of indices into maps and lists pointing to the current root.
   final List<String> _path = <String>[];

diff --git a/protobuf/lib/src/protobuf/message_set.dart b/protobuf/lib/src/protobuf/message_set.dart
@@ -2,6 +2,8 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
+// @dart=3.7
+
 part of 'internal.dart';
 
 const _messageSetItemsTag = 1;

diff --git a/protobuf/lib/src/protobuf/mixins/map_mixin.dart b/protobuf/lib/src/protobuf/mixins/map_mixin.dart
@@ -2,6 +2,8 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
+// @dart=3.7
+
 import '../../../protobuf.dart' show BuilderInfo;
 
 /// Note that this class does not claim to implement [Map]. Instead, this needs

diff --git a/protobuf/lib/src/protobuf/mixins/well_known.dart b/protobuf/lib/src/protobuf/mixins/well_known.dart
@@ -2,6 +2,8 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
+// @dart=3.7
+
 import 'dart:convert';
 
 import 'package:fixnum/fixnum.dart';

diff --git a/protobuf/lib/src/protobuf/pb_list.dart b/protobuf/lib/src/protobuf/pb_list.dart
@@ -2,6 +2,8 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
+// @dart=3.7
+
 import 'dart:collection' show ListBase;
 import 'dart:math' as math;
 

diff --git a/protobuf/lib/src/protobuf/pb_map.dart b/protobuf/lib/src/protobuf/pb_map.dart
@@ -2,6 +2,8 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
+// @dart=3.7
+
 import 'dart:collection' show MapBase;
 
 import 'internal.dart';

diff --git a/protobuf/lib/src/protobuf/permissive_compare.dart b/protobuf/lib/src/protobuf/permissive_compare.dart
@@ -2,6 +2,8 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
+// @dart=3.7
+
 /// Returns true if [a] and [b] are the same ignoring case and all instances of
 ///  `-` and `_`.
 ///

diff --git a/protobuf/lib/src/protobuf/proto3_json.dart b/protobuf/lib/src/protobuf/proto3_json.dart
@@ -2,6 +2,8 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
+// @dart=3.7
+
 part of 'internal.dart';
 
 // Public because this is called from the mixins library.

diff --git a/protobuf/lib/src/protobuf/protobuf_enum.dart b/protobuf/lib/src/protobuf/protobuf_enum.dart
@@ -2,6 +2,8 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
+// @dart=3.7
+
 // ignore_for_file: non_constant_identifier_names
 
 part of 'internal.dart';

diff --git a/protobuf/lib/src/protobuf/rpc_client.dart b/protobuf/lib/src/protobuf/rpc_client.dart
@@ -2,6 +2,8 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
+// @dart=3.7
+
 part of 'internal.dart';
 
 /// Client side context for [RpcClient]s.

diff --git a/protobuf/lib/src/protobuf/type_registry.dart b/protobuf/lib/src/protobuf/type_registry.dart
@@ -2,6 +2,8 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
+// @dart=3.7
+
 import '../../protobuf.dart';
 
 /// A TypeRegistry is used to resolve Any messages in the proto3 JSON conversion.

diff --git a/protobuf/lib/src/protobuf/unknown_field_set.dart b/protobuf/lib/src/protobuf/unknown_field_set.dart
@@ -2,6 +2,8 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
+// @dart=3.7
+
 part of 'internal.dart';
 
 /// A set of unknown fields in a [GeneratedMessage].
@@ -265,7 +267,7 @@ class UnknownFieldSet {
   }
 
   UnknownFieldSet _deepCopy() {
-    Map<int, UnknownFieldSetField> newFields = {};
+    final newFields = <int, UnknownFieldSetField>{};
     for (final entry in _fields.entries) {
       final key = entry.key;
       final value = entry.value;

diff --git a/protobuf/lib/src/protobuf/unpack.dart b/protobuf/lib/src/protobuf/unpack.dart
@@ -2,6 +2,8 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
+// @dart=3.7
+
 part of 'internal.dart';
 
 /// Unpacks the message in [value] into [instance].

diff --git a/protobuf/lib/src/protobuf/utils.dart b/protobuf/lib/src/protobuf/utils.dart
@@ -2,6 +2,8 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
+// @dart=3.7
+
 import 'package:fixnum/fixnum.dart' show Int64;
 
 import 'internal.dart';

diff --git a/protobuf/lib/src/protobuf/wire_format.dart b/protobuf/lib/src/protobuf/wire_format.dart
@@ -2,6 +2,8 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
+// @dart=3.7
+
 // ignore_for_file: constant_identifier_names
 
 part of 'internal.dart';

diff --git a/protobuf/test/builder_info_test.dart b/protobuf/test/builder_info_test.dart
@@ -2,6 +2,8 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
+// @dart=3.7
+
 import 'package:protobuf/protobuf.dart';
 import 'package:test/test.dart';
 

diff --git a/protobuf/test/codec_test.dart b/protobuf/test/codec_test.dart
@@ -2,6 +2,8 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
+// @dart=3.7
+
 import 'dart:typed_data';
 
 import 'package:protobuf/protobuf.dart';

diff --git a/protobuf/test/coded_buffer_reader_test.dart b/protobuf/test/coded_buffer_reader_test.dart
@@ -2,6 +2,8 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
+// @dart=3.7
+
 import 'dart:typed_data';
 
 import 'package:protobuf/protobuf.dart';

diff --git a/protobuf/test/dummy_field_test.dart b/protobuf/test/dummy_field_test.dart
@@ -2,6 +2,8 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
+// @dart=3.7
+
 import 'package:protobuf/protobuf.dart';
 import 'package:test/test.dart';
 

diff --git a/protobuf/test/json_test.dart b/protobuf/test/json_test.dart
@@ -2,6 +2,8 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
+// @dart=3.7
+
 // Basic smoke tests for the GeneratedMessage JSON API.
 //
 // There are more JSON tests in the dart-protoc-plugin package.