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