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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 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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339 I18N_TEMPLATE_TWO, | 339 I18N_TEMPLATE_TWO, |
340 | 340 |
341 NUMBER_OF_SINGLETON_HANDLES | 341 NUMBER_OF_SINGLETON_HANDLES |
342 }; | 342 }; |
343 | 343 |
344 EternalHandles(); | 344 EternalHandles(); |
345 ~EternalHandles(); | 345 ~EternalHandles(); |
346 | 346 |
347 int NumberOfHandles() { return size_; } | 347 int NumberOfHandles() { return size_; } |
348 | 348 |
349 // Create an EternalHandle, returning the index. | 349 // Create an EternalHandle, overwriting the index. |
350 int Create(Isolate* isolate, Object* object); | 350 void Create(Isolate* isolate, Object* object, int* index); |
351 | 351 |
352 // Grab the handle for an existing EternalHandle. | 352 // Grab the handle for an existing EternalHandle. |
353 inline Handle<Object> Get(int index) { | 353 inline Handle<Object> Get(int index) { |
354 return Handle<Object>(GetLocation(index)); | 354 return Handle<Object>(GetLocation(index)); |
355 } | 355 } |
356 | 356 |
357 // Grab the handle for an existing SingletonHandle. | 357 // Grab the handle for an existing SingletonHandle. |
358 inline Handle<Object> GetSingleton(SingletonHandle singleton) { | 358 inline Handle<Object> GetSingleton(SingletonHandle singleton) { |
359 ASSERT(Exists(singleton)); | 359 ASSERT(Exists(singleton)); |
360 return Get(singleton_handles_[singleton]); | 360 return Get(singleton_handles_[singleton]); |
361 } | 361 } |
362 | 362 |
363 // Checks whether a SingletonHandle has been assigned. | 363 // Checks whether a SingletonHandle has been assigned. |
364 inline bool Exists(SingletonHandle singleton) { | 364 inline bool Exists(SingletonHandle singleton) { |
365 return singleton_handles_[singleton] != kInvalidIndex; | 365 return singleton_handles_[singleton] != kInvalidIndex; |
366 } | 366 } |
367 | 367 |
368 // Assign a SingletonHandle to an empty slot and returns the handle. | 368 // Assign a SingletonHandle to an empty slot and returns the handle. |
369 Handle<Object> CreateSingleton(Isolate* isolate, | 369 Handle<Object> CreateSingleton(Isolate* isolate, |
370 Object* object, | 370 Object* object, |
371 SingletonHandle singleton) { | 371 SingletonHandle singleton) { |
372 ASSERT(singleton_handles_[singleton] == kInvalidIndex); | 372 Create(isolate, object, &singleton_handles_[singleton]); |
373 singleton_handles_[singleton] = Create(isolate, object); | |
374 return Get(singleton_handles_[singleton]); | 373 return Get(singleton_handles_[singleton]); |
375 } | 374 } |
376 | 375 |
377 // Iterates over all handles. | 376 // Iterates over all handles. |
378 void IterateAllRoots(ObjectVisitor* visitor); | 377 void IterateAllRoots(ObjectVisitor* visitor); |
379 // Iterates over all handles which might be in new space. | 378 // Iterates over all handles which might be in new space. |
380 void IterateNewSpaceRoots(ObjectVisitor* visitor); | 379 void IterateNewSpaceRoots(ObjectVisitor* visitor); |
381 // Rebuilds new space list. | 380 // Rebuilds new space list. |
382 void PostGarbageCollectionProcessing(Heap* heap); | 381 void PostGarbageCollectionProcessing(Heap* heap); |
383 | 382 |
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398 List<int> new_space_indices_; | 397 List<int> new_space_indices_; |
399 int singleton_handles_[NUMBER_OF_SINGLETON_HANDLES]; | 398 int singleton_handles_[NUMBER_OF_SINGLETON_HANDLES]; |
400 | 399 |
401 DISALLOW_COPY_AND_ASSIGN(EternalHandles); | 400 DISALLOW_COPY_AND_ASSIGN(EternalHandles); |
402 }; | 401 }; |
403 | 402 |
404 | 403 |
405 } } // namespace v8::internal | 404 } } // namespace v8::internal |
406 | 405 |
407 #endif // V8_GLOBAL_HANDLES_H_ | 406 #endif // V8_GLOBAL_HANDLES_H_ |
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