Bisect clang

tools/clang/plugins/tests/virtual_specifiers.cpp

+// Copyright 2014 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.
+//
+// Tests for chromium style checks for virtual/override/final specifiers on
+// virtual methods.
+
+// Note: This is not actual windows.h but the stub file in system/windows.h
+#include <windows.h>
+
+// Purposely use macros to test that the FixIt hints don't try to remove the
+// macro body.
+#define OVERRIDE override
+#define FINAL final
+
+// Base class can only use virtual.
+class Base {
+ public:
+  virtual ~Base() {}
+  virtual void F() = 0;
+};
+
+// Derived classes correctly use only override or final specifier.
+class CorrectOverride : public Base {
+ public:
+  ~CorrectOverride() OVERRIDE {}
+  void F() OVERRIDE {}
+};
+
+class CorrectFinal : public CorrectOverride {
+ public:
+  ~CorrectFinal() FINAL {}
+  void F() FINAL {}
+};
+
+// No override on an overridden method should trigger a diagnostic.
+class MissingOverride : public Base {
+ public:
+  ~MissingOverride() {}
+  void F() {}
+};
+
+// Redundant specifiers should trigger a diagnostic.
+class VirtualAndOverride : public Base {
+ public:
+  virtual ~VirtualAndOverride() OVERRIDE {}
+  virtual void F() OVERRIDE {}
+};
+
+class VirtualAndFinal : public Base {
+ public:
+  virtual ~VirtualAndFinal() FINAL {}
+  virtual void F() FINAL {}
+};
+
+class VirtualAndOverrideFinal : public Base {
+ public:
+  virtual ~VirtualAndOverrideFinal() OVERRIDE FINAL {}
+  virtual void F() OVERRIDE FINAL {}
+};
+
+class OverrideAndFinal : public Base {
+ public:
+  ~OverrideAndFinal() OVERRIDE FINAL {}
+  void F() OVERRIDE FINAL {}
+};
+
+// Also warn on pure functions.
+class CorrectPureVirtual : public Base {
+  virtual void F() = 0;
+};
+
+class Pure : public Base {
+  void F() = 0;
+};
+
+class PureOverride : public Base {
+  void F() override = 0;
+};
+
+class PureVirtualOverride : public Base {
+  virtual void F() override = 0;
+};
+
+// Test that the redundant virtual warning is suppressed when the virtual
+// keyword comes from a macro in a system header.
+class COMIsAwesome : public Base {
+  STDMETHOD(F)() override = 0;
+};
+
+// Some tests that overrides in the testing namespace
+// don't trigger warnings, except for testing::Test.
+namespace testing {
+
+class Test {
+ public:
+  virtual ~Test();
+  virtual void SetUp();
+};
+
+class NotTest {
+ public:
+  virtual ~NotTest();
+  virtual void SetUp();
+};
+
+}  // namespace
+
+class MyTest : public testing::Test {
+ public:
+  virtual ~MyTest();
+  virtual void SetUp() override;
+};
+
+class MyNotTest : public testing::NotTest {
+ public:
+  virtual ~MyNotTest();
+  virtual void SetUp() override;
+};
+
+class MacroBase {
+ public:
+  virtual void AddRef() = 0;
+  virtual void Virtual() {}
+};
+
+class Sub : public MacroBase {
+  // Shouldn't warn.
+  END_COM_MAP()
+  SYSTEM_REDUNDANT1;
+  SYSTEM_REDUNDANT2;
+};