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1 // Copyright 2011 the V8 project authors. All rights reserved. | 1 // Copyright 2011 the V8 project 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 V8_HANDLES_H_ | 5 #ifndef V8_HANDLES_H_ |
6 #define V8_HANDLES_H_ | 6 #define V8_HANDLES_H_ |
7 | 7 |
8 #include "objects.h" | 8 #include "objects.h" |
9 | 9 |
10 namespace v8 { | 10 namespace v8 { |
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148 } | 148 } |
149 | 149 |
150 | 150 |
151 // Convenience wrapper. | 151 // Convenience wrapper. |
152 template<class T> | 152 template<class T> |
153 inline Handle<T> handle(T* t) { | 153 inline Handle<T> handle(T* t) { |
154 return Handle<T>(t, t->GetIsolate()); | 154 return Handle<T>(t, t->GetIsolate()); |
155 } | 155 } |
156 | 156 |
157 | 157 |
158 // Key comparison function for Map handles. | |
159 inline bool operator<(const Handle<Map>& lhs, const Handle<Map>& rhs) { | |
160 // This is safe because maps don't move. | |
161 return *lhs < *rhs; | |
mvstanton
2014/05/02 06:34:16
Seems like I see MStarzinger cringe every time we
Benedikt Meurer
2014/05/02 06:39:15
Yeah... having some kind of ObjectTraits<T>::IsImm
| |
162 } | |
163 | |
164 | |
158 class DeferredHandles; | 165 class DeferredHandles; |
159 class HandleScopeImplementer; | 166 class HandleScopeImplementer; |
160 | 167 |
161 | 168 |
162 // A stack-allocated class that governs a number of local handles. | 169 // A stack-allocated class that governs a number of local handles. |
163 // After a handle scope has been created, all local handles will be | 170 // After a handle scope has been created, all local handles will be |
164 // allocated within that handle scope until either the handle scope is | 171 // allocated within that handle scope until either the handle scope is |
165 // deleted or another handle scope is created. If there is already a | 172 // deleted or another handle scope is created. If there is already a |
166 // handle scope and a new one is created, all allocations will take | 173 // handle scope and a new one is created, all allocations will take |
167 // place in the new handle scope until it is deleted. After that, | 174 // place in the new handle scope until it is deleted. After that, |
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281 | 288 |
282 void Initialize() { | 289 void Initialize() { |
283 next = limit = NULL; | 290 next = limit = NULL; |
284 level = 0; | 291 level = 0; |
285 } | 292 } |
286 }; | 293 }; |
287 | 294 |
288 } } // namespace v8::internal | 295 } } // namespace v8::internal |
289 | 296 |
290 #endif // V8_HANDLES_H_ | 297 #endif // V8_HANDLES_H_ |
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