1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #include "base_refcounted.h" 6 7 #include <stddef.h> 8 9 namespace { 10 11 // Unsafe; should error. 12 class AnonymousDerivedProtectedToPublicInImpl 13 : public ProtectedRefCountedVirtualDtorInHeader { 14 public: AnonymousDerivedProtectedToPublicInImpl()15 AnonymousDerivedProtectedToPublicInImpl() {} ~AnonymousDerivedProtectedToPublicInImpl()16 ~AnonymousDerivedProtectedToPublicInImpl() override {} 17 }; 18 19 // Unsafe; but we should only warn on the base class. 20 class AnonymousDerivedProtectedOnDerived 21 : public ProtectedRefCountedDtorInHeader { 22 protected: ~AnonymousDerivedProtectedOnDerived()23 ~AnonymousDerivedProtectedOnDerived() {} 24 }; 25 26 } // namespace 27 28 // Unsafe; should error. 29 class PublicRefCountedDtorInImpl 30 : public base::RefCounted<PublicRefCountedDtorInImpl> { 31 public: PublicRefCountedDtorInImpl()32 PublicRefCountedDtorInImpl() {} ~PublicRefCountedDtorInImpl()33 ~PublicRefCountedDtorInImpl() {} 34 35 private: 36 friend class base::RefCounted<PublicRefCountedDtorInImpl>; 37 }; 38 39 class Foo { 40 public: 41 class BarInterface { 42 protected: ~BarInterface()43 virtual ~BarInterface() {} 44 }; 45 46 typedef base::RefCounted<BarInterface> RefCountedBar; 47 typedef RefCountedBar AnotherTypedef; 48 }; 49 50 class Baz { 51 public: 52 typedef typename Foo::AnotherTypedef MyLocalTypedef; 53 }; 54 55 // Unsafe; should error. 56 class UnsafeTypedefChainInImpl : public Baz::MyLocalTypedef { 57 public: UnsafeTypedefChainInImpl()58 UnsafeTypedefChainInImpl() {} ~UnsafeTypedefChainInImpl()59 ~UnsafeTypedefChainInImpl() {} 60 }; 61 main()62int main() { 63 PublicRefCountedDtorInHeader bad; 64 PublicRefCountedDtorInImpl also_bad; 65 66 ProtectedRefCountedDtorInHeader* even_badder = NULL; 67 PrivateRefCountedDtorInHeader* private_ok = NULL; 68 69 DerivedProtectedToPublicInHeader still_bad; 70 PublicRefCountedThreadSafeDtorInHeader another_bad_variation; 71 AnonymousDerivedProtectedToPublicInImpl and_this_is_bad_too; 72 ImplicitDerivedProtectedToPublicInHeader bad_yet_again; 73 UnsafeTypedefChainInImpl and_again_this_is_bad; 74 75 WebKitPublicDtorInHeader ignored; 76 WebKitDerivedPublicDtorInHeader still_ignored; 77 78 return 0; 79 } 80