OLD | NEW |
1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 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_CONTEXTS_H_ | 5 #ifndef V8_CONTEXTS_H_ |
6 #define V8_CONTEXTS_H_ | 6 #define V8_CONTEXTS_H_ |
7 | 7 |
8 #include "src/heap/heap.h" | 8 #include "src/heap/heap.h" |
9 #include "src/objects.h" | 9 #include "src/objects.h" |
10 | 10 |
(...skipping 332 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
343 // (through 'eval'). The object in a 'with' statement is | 343 // (through 'eval'). The object in a 'with' statement is |
344 // stored in the extension slot of a 'with' context. | 344 // stored in the extension slot of a 'with' context. |
345 // Dynamically declared variables/functions are also added | 345 // Dynamically declared variables/functions are also added |
346 // to lazily allocated extension object. Context::Lookup | 346 // to lazily allocated extension object. Context::Lookup |
347 // searches the extension object for properties. | 347 // searches the extension object for properties. |
348 // For script and block contexts, contains the respective | 348 // For script and block contexts, contains the respective |
349 // ScopeInfo. For block contexts representing sloppy declaration | 349 // ScopeInfo. For block contexts representing sloppy declaration |
350 // block scopes, it may also be a struct being a | 350 // block scopes, it may also be a struct being a |
351 // SloppyBlockWithEvalContextExtension, pairing the ScopeInfo | 351 // SloppyBlockWithEvalContextExtension, pairing the ScopeInfo |
352 // with an extension object. | 352 // with an extension object. |
353 // For module contexts, points back to the respective JSModule. | |
354 // | 353 // |
355 // [ global_object ] A pointer to the global object. Provided for quick | 354 // [ global_object ] A pointer to the global object. Provided for quick |
356 // access to the global object from inside the code (since | 355 // access to the global object from inside the code (since |
357 // we always have a context pointer). | 356 // we always have a context pointer). |
358 // | 357 // |
359 // In addition, function contexts may have statically allocated context slots | 358 // In addition, function contexts may have statically allocated context slots |
360 // to store local variables/functions that are accessed from inner functions | 359 // to store local variables/functions that are accessed from inner functions |
361 // (via static context addresses) or through 'eval' (dynamic context lookups). | 360 // (via static context addresses) or through 'eval' (dynamic context lookups). |
362 // The native context contains additional slots for fast access to native | 361 // The native context contains additional slots for fast access to native |
363 // properties. | 362 // properties. |
(...skipping 59 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
423 inline Object* next_context_link(); | 422 inline Object* next_context_link(); |
424 | 423 |
425 inline bool has_extension(); | 424 inline bool has_extension(); |
426 inline HeapObject* extension(); | 425 inline HeapObject* extension(); |
427 inline void set_extension(HeapObject* object); | 426 inline void set_extension(HeapObject* object); |
428 JSObject* extension_object(); | 427 JSObject* extension_object(); |
429 JSReceiver* extension_receiver(); | 428 JSReceiver* extension_receiver(); |
430 ScopeInfo* scope_info(); | 429 ScopeInfo* scope_info(); |
431 String* catch_name(); | 430 String* catch_name(); |
432 | 431 |
433 inline JSModule* module(); | |
434 inline void set_module(JSModule* module); | |
435 | |
436 // Get the context where var declarations will be hoisted to, which | 432 // Get the context where var declarations will be hoisted to, which |
437 // may be the context itself. | 433 // may be the context itself. |
438 Context* declaration_context(); | 434 Context* declaration_context(); |
439 bool is_declaration_context(); | 435 bool is_declaration_context(); |
440 | 436 |
441 // Get the next closure's context on the context chain. | 437 // Get the next closure's context on the context chain. |
442 Context* closure_context(); | 438 Context* closure_context(); |
443 | 439 |
444 // Returns a JSGlobalProxy object or null. | 440 // Returns a JSGlobalProxy object or null. |
445 JSObject* global_proxy(); | 441 JSObject* global_proxy(); |
(...skipping 130 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
576 #endif | 572 #endif |
577 | 573 |
578 STATIC_ASSERT(kHeaderSize == Internals::kContextHeaderSize); | 574 STATIC_ASSERT(kHeaderSize == Internals::kContextHeaderSize); |
579 STATIC_ASSERT(EMBEDDER_DATA_INDEX == Internals::kContextEmbedderDataIndex); | 575 STATIC_ASSERT(EMBEDDER_DATA_INDEX == Internals::kContextEmbedderDataIndex); |
580 }; | 576 }; |
581 | 577 |
582 } // namespace internal | 578 } // namespace internal |
583 } // namespace v8 | 579 } // namespace v8 |
584 | 580 |
585 #endif // V8_CONTEXTS_H_ | 581 #endif // V8_CONTEXTS_H_ |
OLD | NEW |