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| 1 /* | 1 /* |
| 2 * Copyright (C) 2011 Apple Inc. All rights reserved. | 2 * Copyright (C) 2011 Apple 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 |
| (...skipping 20 matching lines...) Expand all Loading... |
| 31 | 31 |
| 32 #include "wtf/OwnPtr.h" | 32 #include "wtf/OwnPtr.h" |
| 33 #include "wtf/RefPtr.h" | 33 #include "wtf/RefPtr.h" |
| 34 | 34 |
| 35 // The PassTraits template exists to help optimize (or make possible) use | 35 // The PassTraits template exists to help optimize (or make possible) use |
| 36 // of WTF data structures with WTF smart pointers that have a Pass | 36 // of WTF data structures with WTF smart pointers that have a Pass |
| 37 // variant for transfer of ownership | 37 // variant for transfer of ownership |
| 38 | 38 |
| 39 namespace WTF { | 39 namespace WTF { |
| 40 | 40 |
| 41 template<typename T> struct PassTraits { | 41 template <typename T> |
| 42 typedef T Type; | 42 struct PassTraits { |
| 43 typedef T PassType; | 43 typedef T Type; |
| 44 static Type& transfer(Type& value) { return value; } | 44 typedef T PassType; |
| 45 static Type& transfer(Type& value) { return value; } |
| 45 }; | 46 }; |
| 46 | 47 |
| 47 template<typename T> struct PassTraits<OwnPtr<T>> { | 48 template <typename T> |
| 48 typedef OwnPtr<T> Type; | 49 struct PassTraits<OwnPtr<T>> { |
| 49 typedef PassOwnPtr<T> PassType; | 50 typedef OwnPtr<T> Type; |
| 50 static PassType transfer(Type& value) { return value.release(); } | 51 typedef PassOwnPtr<T> PassType; |
| 52 static PassType transfer(Type& value) { return value.release(); } |
| 51 }; | 53 }; |
| 52 | 54 |
| 53 template<typename T> struct PassTraits<RefPtr<T>> { | 55 template <typename T> |
| 54 typedef RefPtr<T> Type; | 56 struct PassTraits<RefPtr<T>> { |
| 55 typedef PassRefPtr<T> PassType; | 57 typedef RefPtr<T> Type; |
| 56 static PassType transfer(Type& value) { return value.release(); } | 58 typedef PassRefPtr<T> PassType; |
| 59 static PassType transfer(Type& value) { return value.release(); } |
| 57 }; | 60 }; |
| 58 | 61 |
| 59 } // namespace WTF | 62 } // namespace WTF |
| 60 | 63 |
| 61 using WTF::PassTraits; | 64 using WTF::PassTraits; |
| 62 | 65 |
| 63 #endif // WTF_PassTraits_h | 66 #endif // WTF_PassTraits_h |
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