| // Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file | |
| // 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. | |
| syntax = "proto2"; | |
| package pkg1; | |
| message M { | |
| message M { | |
| optional int32 x = 1; | |
| } | |
| optional int32 a = 1; | |
| optional string b = 2; | |
| } |