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1 // Copyright 2006-2008 the V8 project authors. All rights reserved. | 1 // Copyright 2006-2008 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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254 }; | 254 }; |
255 | 255 |
256 | 256 |
257 // Exit frames are used to exit JavaScript execution and go to C. | 257 // Exit frames are used to exit JavaScript execution and go to C. |
258 class ExitFrame: public StackFrame { | 258 class ExitFrame: public StackFrame { |
259 public: | 259 public: |
260 virtual Type type() const { return EXIT; } | 260 virtual Type type() const { return EXIT; } |
261 | 261 |
262 virtual Code* FindCode() const; | 262 virtual Code* FindCode() const; |
263 | 263 |
264 // Garbage colletion support. | 264 // Garbage collection support. |
265 virtual void Iterate(ObjectVisitor* v) const; | 265 virtual void Iterate(ObjectVisitor* v) const; |
266 | 266 |
267 static ExitFrame* cast(StackFrame* frame) { | 267 static ExitFrame* cast(StackFrame* frame) { |
268 ASSERT(frame->is_exit()); | 268 ASSERT(frame->is_exit()); |
269 return static_cast<ExitFrame*>(frame); | 269 return static_cast<ExitFrame*>(frame); |
270 } | 270 } |
271 | 271 |
272 // Compute the state and type of an exit frame given a frame | 272 // Compute the state and type of an exit frame given a frame |
273 // pointer. Used when constructing the first stack frame seen by an | 273 // pointer. Used when constructing the first stack frame seen by an |
274 // iterator and the frames following entry frames. | 274 // iterator and the frames following entry frames. |
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383 int GetProvidedParametersCount() const; | 383 int GetProvidedParametersCount() const; |
384 | 384 |
385 // Check if this frame is a constructor frame invoked through 'new'. | 385 // Check if this frame is a constructor frame invoked through 'new'. |
386 bool IsConstructor() const; | 386 bool IsConstructor() const; |
387 | 387 |
388 // Check if this frame has "adapted" arguments in the sense that the | 388 // Check if this frame has "adapted" arguments in the sense that the |
389 // actual passed arguments are available in an arguments adaptor | 389 // actual passed arguments are available in an arguments adaptor |
390 // frame below it on the stack. | 390 // frame below it on the stack. |
391 inline bool has_adapted_arguments() const; | 391 inline bool has_adapted_arguments() const; |
392 | 392 |
393 // Garbage colletion support. | 393 // Garbage collection support. |
394 virtual void Iterate(ObjectVisitor* v) const; | 394 virtual void Iterate(ObjectVisitor* v) const; |
395 | 395 |
396 // Printing support. | 396 // Printing support. |
397 virtual void Print(StringStream* accumulator, | 397 virtual void Print(StringStream* accumulator, |
398 PrintMode mode, | 398 PrintMode mode, |
399 int index) const; | 399 int index) const; |
400 | 400 |
401 // Determine the code for the frame. | 401 // Determine the code for the frame. |
402 virtual Code* FindCode() const; | 402 virtual Code* FindCode() const; |
403 | 403 |
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452 | 452 |
453 private: | 453 private: |
454 friend class StackFrameIterator; | 454 friend class StackFrameIterator; |
455 }; | 455 }; |
456 | 456 |
457 | 457 |
458 class InternalFrame: public StandardFrame { | 458 class InternalFrame: public StandardFrame { |
459 public: | 459 public: |
460 virtual Type type() const { return INTERNAL; } | 460 virtual Type type() const { return INTERNAL; } |
461 | 461 |
462 // Garbage colletion support. | 462 // Garbage collection support. |
463 virtual void Iterate(ObjectVisitor* v) const; | 463 virtual void Iterate(ObjectVisitor* v) const; |
464 | 464 |
465 // Determine the code for the frame. | 465 // Determine the code for the frame. |
466 virtual Code* FindCode() const; | 466 virtual Code* FindCode() const; |
467 | 467 |
468 static InternalFrame* cast(StackFrame* frame) { | 468 static InternalFrame* cast(StackFrame* frame) { |
469 ASSERT(frame->is_internal()); | 469 ASSERT(frame->is_internal()); |
470 return static_cast<InternalFrame*>(frame); | 470 return static_cast<InternalFrame*>(frame); |
471 } | 471 } |
472 | 472 |
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578 JavaScriptFrame* FindJavaScriptFrame(int n); | 578 JavaScriptFrame* FindJavaScriptFrame(int n); |
579 | 579 |
580 private: | 580 private: |
581 StackFrameIterator iterator_; | 581 StackFrameIterator iterator_; |
582 }; | 582 }; |
583 | 583 |
584 | 584 |
585 } } // namespace v8::internal | 585 } } // namespace v8::internal |
586 | 586 |
587 #endif // V8_FRAMES_H_ | 587 #endif // V8_FRAMES_H_ |
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