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1 /* | 1 /* |
2 * Copyright (C) 2010 Google Inc. All rights reserved. | 2 * Copyright (C) 2010 Google Inc. All rights reserved. |
3 * | 3 * |
4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
5 * modification, are permitted provided that the following conditions | 5 * modification, are permitted provided that the following conditions |
6 * are met: | 6 * are met: |
7 * | 7 * |
8 * 1. Redistributions of source code must retain the above copyright | 8 * 1. Redistributions of source code must retain the above copyright |
9 * notice, this list of conditions and the following disclaimer. | 9 * notice, this list of conditions and the following disclaimer. |
10 * 2. Redistributions in binary form must reproduce the above copyright | 10 * 2. Redistributions in binary form must reproduce the above copyright |
11 * notice, this list of conditions and the following disclaimer in the | 11 * notice, this list of conditions and the following disclaimer in the |
12 * documentation and/or other materials provided with the distribution. | 12 * documentation and/or other materials provided with the distribution. |
13 * | 13 * |
14 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY | 14 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY |
15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED | 15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
16 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | 16 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
17 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY | 17 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY |
18 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES | 18 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
19 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | 19 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
20 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND | 20 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
21 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 21 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF | 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | 23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
24 */ | 24 */ |
25 | 25 |
26 #ifndef WebPrivateOwnPtr_h | 26 #ifndef WebPrivateOwnPtr_h |
27 #define WebPrivateOwnPtr_h | 27 #define WebPrivateOwnPtr_h |
28 | 28 |
29 #include "WebCommon.h" | 29 #include "WebAssertion.h" |
30 | 30 |
31 namespace WebKit { | 31 namespace WebKit { |
32 | 32 |
33 // This class is an implementation detail of the WebKit API. It exists | 33 // This class is an implementation detail of the WebKit API. It exists |
34 // to help simplify the implementation of WebKit interfaces that merely | 34 // to help simplify the implementation of WebKit interfaces that merely |
35 // wrap a pointer to a WebCore class. It's similar to WebPrivatePtr, but it | 35 // wrap a pointer to a WebCore class. It's similar to WebPrivatePtr, but it |
36 // wraps a naked pointer rather than a reference counted. | 36 // wraps a naked pointer rather than a reference counted. |
37 // Note: you must call reset(0) on the implementation side in order to delete | 37 // Note: you must call reset(0) on the implementation side in order to delete |
38 // the WebCore pointer. | 38 // the WebCore pointer. |
39 template <typename T> | 39 template <typename T> |
40 class WebPrivateOwnPtr { | 40 class WebPrivateOwnPtr { |
41 public: | 41 public: |
42 WebPrivateOwnPtr() : m_ptr(0) {} | 42 WebPrivateOwnPtr() : m_ptr(0) { } |
43 ~WebPrivateOwnPtr() { WEBKIT_ASSERT(!m_ptr); } | 43 ~WebPrivateOwnPtr() { WEBKIT_ASSERT(!m_ptr); } |
44 | 44 |
45 #if WEBKIT_IMPLEMENTATION | 45 #if INSIDE_WEBKIT |
46 explicit WebPrivateOwnPtr(T* ptr) | 46 explicit WebPrivateOwnPtr(T* ptr) |
47 : m_ptr(ptr) | 47 : m_ptr(ptr) |
48 { | 48 { |
49 } | 49 } |
50 | 50 |
51 void reset(T* ptr) | 51 void reset(T* ptr) |
52 { | 52 { |
53 delete m_ptr; | 53 delete m_ptr; |
54 m_ptr = ptr; | 54 m_ptr = ptr; |
55 } | 55 } |
56 | 56 |
57 T* get() const { return m_ptr; } | 57 T* get() const { return m_ptr; } |
58 | 58 |
59 T* operator->() const | 59 T* operator->() const |
60 { | 60 { |
61 WEBKIT_ASSERT(m_ptr); | 61 WEBKIT_ASSERT(m_ptr); |
62 return m_ptr; | 62 return m_ptr; |
63 } | 63 } |
64 #endif // WEBKIT_IMPLEMENTATION | 64 #endif // INSIDE_WEBKIT |
65 | 65 |
66 private: | 66 private: |
67 T* m_ptr; | 67 T* m_ptr; |
68 | 68 |
69 WebPrivateOwnPtr(const WebPrivateOwnPtr&); | 69 WebPrivateOwnPtr(const WebPrivateOwnPtr&); |
70 void operator=(const WebPrivateOwnPtr&); | 70 void operator=(const WebPrivateOwnPtr&); |
71 }; | 71 }; |
72 | 72 |
73 } // namespace WebKit | 73 } // namespace WebKit |
74 | 74 |
75 #endif | 75 #endif |
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