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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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621 InstanceType type; | 621 InstanceType type; |
622 Object* ptr; | 622 Object* ptr; |
623 const char* str; | 623 const char* str; |
624 double number; | 624 double number; |
625 }; | 625 }; |
626 | 626 |
627 | 627 |
628 // A template-ized version of the IsXXX functions. | 628 // A template-ized version of the IsXXX functions. |
629 template <class C> static inline bool Is(Object* obj); | 629 template <class C> static inline bool Is(Object* obj); |
630 | 630 |
| 631 class Failure; |
631 | 632 |
632 class MaybeObject BASE_EMBEDDED { | 633 class MaybeObject BASE_EMBEDDED { |
633 public: | 634 public: |
634 inline bool IsFailure(); | 635 inline bool IsFailure(); |
635 inline bool IsRetryAfterGC(); | 636 inline bool IsRetryAfterGC(); |
636 inline bool IsOutOfMemory(); | 637 inline bool IsOutOfMemory(); |
637 inline bool IsException(); | 638 inline bool IsException(); |
638 INLINE(bool IsTheHole()); | 639 INLINE(bool IsTheHole()); |
639 inline bool ToObject(Object** obj) { | 640 inline bool ToObject(Object** obj) { |
640 if (IsFailure()) return false; | 641 if (IsFailure()) return false; |
641 *obj = reinterpret_cast<Object*>(this); | 642 *obj = reinterpret_cast<Object*>(this); |
642 return true; | 643 return true; |
643 } | 644 } |
| 645 inline Failure* ToFailureUnchecked() { |
| 646 ASSERT(IsFailure()); |
| 647 return reinterpret_cast<Failure*>(this); |
| 648 } |
644 inline Object* ToObjectUnchecked() { | 649 inline Object* ToObjectUnchecked() { |
645 ASSERT(!IsFailure()); | 650 ASSERT(!IsFailure()); |
646 return reinterpret_cast<Object*>(this); | 651 return reinterpret_cast<Object*>(this); |
647 } | 652 } |
648 inline Object* ToObjectChecked() { | 653 inline Object* ToObjectChecked() { |
649 CHECK(!IsFailure()); | 654 CHECK(!IsFailure()); |
650 return reinterpret_cast<Object*>(this); | 655 return reinterpret_cast<Object*>(this); |
651 } | 656 } |
652 | 657 |
653 template<typename T> | 658 template<typename T> |
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6778 } else { | 6783 } else { |
6779 value &= ~(1 << bit_position); | 6784 value &= ~(1 << bit_position); |
6780 } | 6785 } |
6781 return value; | 6786 return value; |
6782 } | 6787 } |
6783 }; | 6788 }; |
6784 | 6789 |
6785 } } // namespace v8::internal | 6790 } } // namespace v8::internal |
6786 | 6791 |
6787 #endif // V8_OBJECTS_H_ | 6792 #endif // V8_OBJECTS_H_ |
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