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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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28 // Review notes: | 28 // Review notes: |
29 // | 29 // |
30 // - The use of macros in these inline functions may seem superfluous | 30 // - The use of macros in these inline functions may seem superfluous |
31 // but it is absolutely needed to make sure gcc generates optimal | 31 // but it is absolutely needed to make sure gcc generates optimal |
32 // code. gcc is not happy when attempting to inline too deep. | 32 // code. gcc is not happy when attempting to inline too deep. |
33 // | 33 // |
34 | 34 |
35 #ifndef V8_OBJECTS_INL_H_ | 35 #ifndef V8_OBJECTS_INL_H_ |
36 #define V8_OBJECTS_INL_H_ | 36 #define V8_OBJECTS_INL_H_ |
37 | 37 |
38 #include "objects.h" | 38 #include "memory.h" |
39 #include "contexts.h" | 39 #include "contexts.h" |
40 #include "conversions-inl.h" | 40 #include "conversions-inl.h" |
| 41 #include "objects.h" |
41 #include "property.h" | 42 #include "property.h" |
42 | 43 |
43 namespace v8 { | 44 namespace v8 { |
44 namespace internal { | 45 namespace internal { |
45 | 46 |
46 PropertyDetails::PropertyDetails(Smi* smi) { | 47 PropertyDetails::PropertyDetails(Smi* smi) { |
47 value_ = smi->value(); | 48 value_ = smi->value(); |
48 } | 49 } |
49 | 50 |
50 | 51 |
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2395 HeapObject* code = HeapObject::FromAddress(address - Code::kHeaderSize); | 2396 HeapObject* code = HeapObject::FromAddress(address - Code::kHeaderSize); |
2396 // GetCodeFromTargetAddress might be called when marking objects during mark | 2397 // GetCodeFromTargetAddress might be called when marking objects during mark |
2397 // sweep. reinterpret_cast is therefore used instead of the more appropriate | 2398 // sweep. reinterpret_cast is therefore used instead of the more appropriate |
2398 // Code::cast. Code::cast does not work when the object's map is | 2399 // Code::cast. Code::cast does not work when the object's map is |
2399 // marked. | 2400 // marked. |
2400 Code* result = reinterpret_cast<Code*>(code); | 2401 Code* result = reinterpret_cast<Code*>(code); |
2401 return result; | 2402 return result; |
2402 } | 2403 } |
2403 | 2404 |
2404 | 2405 |
| 2406 Object* Code::GetObjectFromEntryAddress(Address location_of_address) { |
| 2407 return HeapObject:: |
| 2408 FromAddress(Memory::Address_at(location_of_address) - Code::kHeaderSize); |
| 2409 } |
| 2410 |
| 2411 |
2405 Object* Map::prototype() { | 2412 Object* Map::prototype() { |
2406 return READ_FIELD(this, kPrototypeOffset); | 2413 return READ_FIELD(this, kPrototypeOffset); |
2407 } | 2414 } |
2408 | 2415 |
2409 | 2416 |
2410 void Map::set_prototype(Object* value, WriteBarrierMode mode) { | 2417 void Map::set_prototype(Object* value, WriteBarrierMode mode) { |
2411 ASSERT(value->IsNull() || value->IsJSObject()); | 2418 ASSERT(value->IsNull() || value->IsJSObject()); |
2412 WRITE_FIELD(this, kPrototypeOffset, value); | 2419 WRITE_FIELD(this, kPrototypeOffset, value); |
2413 CONDITIONAL_WRITE_BARRIER(this, kPrototypeOffset, mode); | 2420 CONDITIONAL_WRITE_BARRIER(this, kPrototypeOffset, mode); |
2414 } | 2421 } |
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2724 ((code_age & kCodeAgeMask) << kCodeAgeShift)); | 2731 ((code_age & kCodeAgeMask) << kCodeAgeShift)); |
2725 } | 2732 } |
2726 | 2733 |
2727 | 2734 |
2728 bool JSFunction::IsBuiltin() { | 2735 bool JSFunction::IsBuiltin() { |
2729 return context()->global()->IsJSBuiltinsObject(); | 2736 return context()->global()->IsJSBuiltinsObject(); |
2730 } | 2737 } |
2731 | 2738 |
2732 | 2739 |
2733 Code* JSFunction::code() { | 2740 Code* JSFunction::code() { |
2734 return Code::cast(READ_FIELD(this, kCodeOffset)); | 2741 return Code::cast(unchecked_code()); |
2735 } | 2742 } |
2736 | 2743 |
2737 | 2744 |
2738 Code* JSFunction::unchecked_code() { | 2745 Code* JSFunction::unchecked_code() { |
2739 return reinterpret_cast<Code*>(READ_FIELD(this, kCodeOffset)); | 2746 return reinterpret_cast<Code*>( |
| 2747 Code::GetObjectFromEntryAddress(FIELD_ADDR(this, kCodeEntryOffset))); |
2740 } | 2748 } |
2741 | 2749 |
2742 | 2750 |
2743 void JSFunction::set_code(Code* value) { | 2751 void JSFunction::set_code(Code* value) { |
2744 // Skip the write barrier because code is never in new space. | 2752 // Skip the write barrier because code is never in new space. |
2745 ASSERT(!Heap::InNewSpace(value)); | 2753 ASSERT(!Heap::InNewSpace(value)); |
2746 WRITE_FIELD(this, kCodeOffset, value); | 2754 Address entry = value->entry(); |
| 2755 WRITE_INTPTR_FIELD(this, kCodeEntryOffset, reinterpret_cast<intptr_t>(entry)); |
2747 } | 2756 } |
2748 | 2757 |
2749 | 2758 |
2750 Context* JSFunction::context() { | 2759 Context* JSFunction::context() { |
2751 return Context::cast(READ_FIELD(this, kContextOffset)); | 2760 return Context::cast(READ_FIELD(this, kContextOffset)); |
2752 } | 2761 } |
2753 | 2762 |
2754 | 2763 |
2755 Object* JSFunction::unchecked_context() { | 2764 Object* JSFunction::unchecked_context() { |
2756 return READ_FIELD(this, kContextOffset); | 2765 return READ_FIELD(this, kContextOffset); |
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3449 #undef WRITE_INT_FIELD | 3458 #undef WRITE_INT_FIELD |
3450 #undef READ_SHORT_FIELD | 3459 #undef READ_SHORT_FIELD |
3451 #undef WRITE_SHORT_FIELD | 3460 #undef WRITE_SHORT_FIELD |
3452 #undef READ_BYTE_FIELD | 3461 #undef READ_BYTE_FIELD |
3453 #undef WRITE_BYTE_FIELD | 3462 #undef WRITE_BYTE_FIELD |
3454 | 3463 |
3455 | 3464 |
3456 } } // namespace v8::internal | 3465 } } // namespace v8::internal |
3457 | 3466 |
3458 #endif // V8_OBJECTS_INL_H_ | 3467 #endif // V8_OBJECTS_INL_H_ |
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