1 /* 2 * Copyright (C) 2009 Apple Inc. All rights reserved. 3 * Copyright (C) 2009 Torch Mobile, Inc. 4 * Copyright (C) 2010 Company 100 Inc. 5 * Copyright (C) 2013 Intel Corporation. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY 17 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR 20 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 21 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 22 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 23 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 24 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #ifndef WTF_OwnPtrCommon_h 30 #define WTF_OwnPtrCommon_h 31 32 #include "wtf/Assertions.h" 33 #include "wtf/TypeTraits.h" 34 35 namespace WTF { 36 37 class RefCountedBase; 38 class ThreadSafeRefCountedBase; 39 40 template<typename T> 41 struct IsRefCounted { 42 static const bool value = IsSubclass<T, RefCountedBase>::value 43 || IsSubclass<T, ThreadSafeRefCountedBase>::value; 44 }; 45 46 template <typename T> 47 struct OwnedPtrDeleter { deletePtrOwnedPtrDeleter48 static void deletePtr(T* ptr) 49 { 50 COMPILE_ASSERT(!IsRefCounted<T>::value, UseRefPtrForRefCountedObjects); 51 COMPILE_ASSERT(sizeof(T) > 0, TypeMustBeComplete); 52 delete ptr; 53 } 54 }; 55 56 template <typename T> 57 struct OwnedPtrDeleter<T[]> { 58 static void deletePtr(T* ptr) 59 { 60 COMPILE_ASSERT(!IsRefCounted<T>::value, UseRefPtrForRefCountedObjects); 61 COMPILE_ASSERT(sizeof(T) > 0, TypeMustBeComplete); 62 delete[] ptr; 63 } 64 }; 65 66 template <class T, int n> 67 struct OwnedPtrDeleter<T[n]> { 68 COMPILE_ASSERT(sizeof(T) < 0, DoNotUseArrayWithSizeAsType); 69 }; 70 71 } // namespace WTF 72 73 #endif // WTF_OwnPtrCommon_h 74