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
35namespace WTF {
36
37class RefCountedBase;
38class ThreadSafeRefCountedBase;
39
40template<typename T>
41struct IsRefCounted {
42    static const bool value = IsSubclass<T, RefCountedBase>::value
43        || IsSubclass<T, ThreadSafeRefCountedBase>::value;
44};
45
46template <typename T>
47struct OwnedPtrDeleter {
48    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
56template <typename T>
57struct 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
66template <class T, int n>
67struct OwnedPtrDeleter<T[n]> {
68    COMPILE_ASSERT(sizeof(T) < 0, DoNotUseArrayWithSizeAsType);
69};
70
71} // namespace WTF
72
73#endif // WTF_OwnPtrCommon_h
74