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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef BASE_MAC_SCOPED_NSOBJECT_H_ | 5 #ifndef BASE_MAC_SCOPED_NSOBJECT_H_ |
6 #define BASE_MAC_SCOPED_NSOBJECT_H_ | 6 #define BASE_MAC_SCOPED_NSOBJECT_H_ |
7 | 7 |
8 #include <type_traits> | 8 #include <type_traits> |
9 | 9 |
10 // Include NSObject.h directly because Foundation.h pulls in many dependencies. | 10 // Include NSObject.h directly because Foundation.h pulls in many dependencies. |
11 // (Approx 100k lines of code versus 1.5k for NSObject.h). scoped_nsobject gets | 11 // (Approx 100k lines of code versus 1.5k for NSObject.h). scoped_nsobject gets |
12 // singled out because it is most typically included from other header files. | 12 // singled out because it is most typically included from other header files. |
13 #import <Foundation/NSObject.h> | 13 #import <Foundation/NSObject.h> |
14 | 14 |
15 #include "base/compiler_specific.h" | 15 #include "base/compiler_specific.h" |
16 #include "base/mac/scoped_typeref.h" | 16 #include "base/mac/scoped_typeref.h" |
17 | 17 |
18 @class NSAutoreleasePool; | 18 @class NSAutoreleasePool; |
19 | 19 |
20 namespace base { | 20 namespace base { |
21 | 21 |
22 // scoped_nsobject<> is patterned after scoped_ptr<>, but maintains ownership | 22 // scoped_nsobject<> is patterned after std::unique_ptr<>, but maintains |
23 // ownership | |
Nico
2016/04/04 17:14:56
likewise
dcheng
2016/04/04 17:43:38
Done.
| |
23 // of an NSObject subclass object. Style deviations here are solely for | 24 // of an NSObject subclass object. Style deviations here are solely for |
24 // compatibility with scoped_ptr<>'s interface, with which everyone is already | 25 // compatibility with std::unique_ptr<>'s interface, with which everyone is |
26 // already | |
25 // familiar. | 27 // familiar. |
26 // | 28 // |
27 // scoped_nsobject<> takes ownership of an object (in the constructor or in | 29 // scoped_nsobject<> takes ownership of an object (in the constructor or in |
28 // reset()) by taking over the caller's existing ownership claim. The caller | 30 // reset()) by taking over the caller's existing ownership claim. The caller |
29 // must own the object it gives to scoped_nsobject<>, and relinquishes an | 31 // must own the object it gives to scoped_nsobject<>, and relinquishes an |
30 // ownership claim to that object. scoped_nsobject<> does not call -retain, | 32 // ownership claim to that object. scoped_nsobject<> does not call -retain, |
31 // callers have to call this manually if appropriate. | 33 // callers have to call this manually if appropriate. |
32 // | 34 // |
33 // scoped_nsprotocol<> has the same behavior as scoped_nsobject, but can be used | 35 // scoped_nsprotocol<> has the same behavior as scoped_nsobject, but can be used |
34 // with protocols. | 36 // with protocols. |
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89 // Specialization to make scoped_nsobject<id> work. | 91 // Specialization to make scoped_nsobject<id> work. |
90 template<> | 92 template<> |
91 class scoped_nsobject<id> : public scoped_nsprotocol<id> { | 93 class scoped_nsobject<id> : public scoped_nsprotocol<id> { |
92 public: | 94 public: |
93 using scoped_nsprotocol<id>::scoped_nsprotocol; | 95 using scoped_nsprotocol<id>::scoped_nsprotocol; |
94 }; | 96 }; |
95 | 97 |
96 } // namespace base | 98 } // namespace base |
97 | 99 |
98 #endif // BASE_MAC_SCOPED_NSOBJECT_H_ | 100 #endif // BASE_MAC_SCOPED_NSOBJECT_H_ |
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