|  | // Protocol Buffers - Google's data interchange format | 
|  | // Copyright 2016 Google Inc.  All rights reserved. | 
|  | // | 
|  | // Use of this source code is governed by a BSD-style | 
|  | // license that can be found in the LICENSE file or at | 
|  | // https://developers.google.com/open-source/licenses/bsd | 
|  |  | 
|  | syntax = "proto2"; | 
|  |  | 
|  | package objc.protobuf.tests.chain; | 
|  |  | 
|  | import "objectivec/Tests/unittest_extension_chain_g.proto"; | 
|  |  | 
|  | option objc_class_prefix = "Chain"; | 
|  |  | 
|  | // The Root for this file should just be merging in the extensions from C's | 
|  | // Root (because G doesn't define anything itself). | 
|  |  | 
|  | // The generated source will also have to directly import C's .h file so it can | 
|  | // compile the reference to C's Root class. | 
|  |  | 
|  | message FMessage { | 
|  | optional GMessage g = 1; | 
|  | } |