| // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 
 | // Use of this source code is governed by a BSD-style license that can be | 
 | // found in the LICENSE file. | 
 |  | 
 | #ifndef VIRTUAL_METHODS_H_ | 
 | #define VIRTUAL_METHODS_H_ | 
 |  | 
 | // Should warn about virtual method usage. | 
 | class VirtualMethodsInHeaders { | 
 |  public: | 
 |   // Don't complain about these. | 
 |   virtual void MethodIsAbstract() = 0; | 
 |   virtual void MethodHasNoArguments(); | 
 |   virtual void MethodHasEmptyDefaultImpl() {} | 
 |  | 
 |   // But complain about this: | 
 |   virtual bool ComplainAboutThis() { return true; } | 
 | }; | 
 |  | 
 | // Complain on missing 'virtual' keyword in overrides. | 
 | class WarnOnMissingVirtual : public VirtualMethodsInHeaders { | 
 |  public: | 
 |   void MethodHasNoArguments() override; | 
 | }; | 
 |  | 
 | // Don't complain about things in a 'testing' namespace. | 
 | namespace testing { | 
 | struct TestStruct {}; | 
 | }  // namespace testing | 
 |  | 
 | class VirtualMethodsInHeadersTesting : public VirtualMethodsInHeaders { | 
 |  public: | 
 |   // Don't complain about no virtual testing methods. | 
 |   void MethodHasNoArguments(); | 
 |  private: | 
 |   testing::TestStruct tester_; | 
 | }; | 
 |  | 
 | #endif  // VIRTUAL_METHODS_H_ |