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| 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 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 #import "base/mac/objc_property_releaser.h" | 5 #import "base/mac/objc_property_releaser.h" |
| 6 | 6 |
| 7 #import <objc/runtime.h> | 7 #import <objc/runtime.h> |
| 8 #include <stdlib.h> | 8 #include <stdlib.h> |
| 9 | 9 |
| 10 #include <string> | 10 #include <string> |
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| 91 void ObjCPropertyReleaser::Init(id object, Class classy) { | 91 void ObjCPropertyReleaser::Init(id object, Class classy) { |
| 92 DCHECK(!object_); | 92 DCHECK(!object_); |
| 93 DCHECK(!class_); | 93 DCHECK(!class_); |
| 94 CHECK([object isKindOfClass:classy]); | 94 CHECK([object isKindOfClass:classy]); |
| 95 | 95 |
| 96 object_ = object; | 96 object_ = object; |
| 97 class_ = classy; | 97 class_ = classy; |
| 98 } | 98 } |
| 99 | 99 |
| 100 void ObjCPropertyReleaser::ReleaseProperties() { | 100 void ObjCPropertyReleaser::ReleaseProperties() { |
| 101 CHECK(object_); | 101 DCHECK(object_); |
| 102 CHECK(class_); | 102 DCHECK(class_); |
| 103 | 103 |
| 104 unsigned int property_count = 0; | 104 unsigned int property_count = 0; |
| 105 objc_property_t* properties = class_copyPropertyList(class_, &property_count); | 105 objc_property_t* properties = class_copyPropertyList(class_, &property_count); |
| 106 | 106 |
| 107 for (unsigned int property_index = 0; | 107 for (unsigned int property_index = 0; |
| 108 property_index < property_count; | 108 property_index < property_count; |
| 109 ++property_index) { | 109 ++property_index) { |
| 110 objc_property_t property = properties[property_index]; | 110 objc_property_t property = properties[property_index]; |
| 111 std::string instance_name = ReleasableInstanceName(property); | 111 std::string instance_name = ReleasableInstanceName(property); |
| 112 if (!instance_name.empty()) { | 112 if (!instance_name.empty()) { |
| 113 id instance_value = nil; | 113 id instance_value = nil; |
| 114 Ivar instance_variable = | 114 Ivar instance_variable = |
| 115 object_getInstanceVariable(object_, instance_name.c_str(), | 115 object_getInstanceVariable(object_, instance_name.c_str(), |
| 116 (void**)&instance_value); | 116 (void**)&instance_value); |
| 117 CHECK(instance_variable); | 117 DCHECK(instance_variable); |
| 118 [instance_value release]; | 118 [instance_value release]; |
| 119 } | 119 } |
| 120 } | 120 } |
| 121 | 121 |
| 122 free(properties); | 122 free(properties); |
| 123 | 123 |
| 124 // Clear object_ and class_ in case this ObjCPropertyReleaser will live on. | 124 // Clear object_ and class_ in case this ObjCPropertyReleaser will live on. |
| 125 // It's only expected to release the properties it supervises once per Init. | 125 // It's only expected to release the properties it supervises once per Init. |
| 126 object_ = nil; | 126 object_ = nil; |
| 127 class_ = nil; | 127 class_ = nil; |
| 128 } | 128 } |
| 129 | 129 |
| 130 } // namespace mac | 130 } // namespace mac |
| 131 } // namespace base | 131 } // namespace base |
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