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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 // Review notes: | 5 // Review notes: |
6 // | 6 // |
7 // - The use of macros in these inline functions may seem superfluous | 7 // - The use of macros in these inline functions may seem superfluous |
8 // but it is absolutely needed to make sure gcc generates optimal | 8 // but it is absolutely needed to make sure gcc generates optimal |
9 // code. gcc is not happy when attempting to inline too deep. | 9 // code. gcc is not happy when attempting to inline too deep. |
10 // | 10 // |
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3498 void LiteralsArray::set(int index, Object* value, WriteBarrierMode mode) { | 3498 void LiteralsArray::set(int index, Object* value, WriteBarrierMode mode) { |
3499 FixedArray::set(index, value, mode); | 3499 FixedArray::set(index, value, mode); |
3500 } | 3500 } |
3501 | 3501 |
3502 | 3502 |
3503 LiteralsArray* LiteralsArray::cast(Object* object) { | 3503 LiteralsArray* LiteralsArray::cast(Object* object) { |
3504 SLOW_DCHECK(object->IsLiteralsArray()); | 3504 SLOW_DCHECK(object->IsLiteralsArray()); |
3505 return reinterpret_cast<LiteralsArray*>(object); | 3505 return reinterpret_cast<LiteralsArray*>(object); |
3506 } | 3506 } |
3507 | 3507 |
3508 bool LiteralsArray::has_feedback_vector() const { | |
3509 return !get(kVectorIndex)->IsUndefined(this->GetIsolate()); | |
3510 } | |
3511 | 3508 |
3512 TypeFeedbackVector* LiteralsArray::feedback_vector() const { | 3509 TypeFeedbackVector* LiteralsArray::feedback_vector() const { |
3513 if (length() == 0 || !has_feedback_vector()) { | 3510 if (length() == 0) { |
3514 return TypeFeedbackVector::cast( | 3511 return TypeFeedbackVector::cast( |
3515 this->GetIsolate()->heap()->empty_type_feedback_vector()); | 3512 const_cast<FixedArray*>(FixedArray::cast(this))); |
3516 } | 3513 } |
3517 | |
3518 return TypeFeedbackVector::cast(get(kVectorIndex)); | 3514 return TypeFeedbackVector::cast(get(kVectorIndex)); |
3519 } | 3515 } |
3520 | 3516 |
3521 | 3517 |
3522 void LiteralsArray::set_feedback_vector(TypeFeedbackVector* vector) { | 3518 void LiteralsArray::set_feedback_vector(TypeFeedbackVector* vector) { |
3523 if (length() <= kVectorIndex) { | 3519 if (length() <= kVectorIndex) { |
3524 DCHECK(vector->length() == 0); | 3520 DCHECK(vector->length() == 0); |
3525 return; | 3521 return; |
3526 } | 3522 } |
3527 set(kVectorIndex, vector); | 3523 set(kVectorIndex, vector); |
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6654 // context based on the state change. | 6650 // context based on the state change. |
6655 if (!was_optimized && is_optimized) { | 6651 if (!was_optimized && is_optimized) { |
6656 context()->native_context()->AddOptimizedFunction(this); | 6652 context()->native_context()->AddOptimizedFunction(this); |
6657 } | 6653 } |
6658 if (was_optimized && !is_optimized) { | 6654 if (was_optimized && !is_optimized) { |
6659 // TODO(titzer): linear in the number of optimized functions; fix! | 6655 // TODO(titzer): linear in the number of optimized functions; fix! |
6660 context()->native_context()->RemoveOptimizedFunction(this); | 6656 context()->native_context()->RemoveOptimizedFunction(this); |
6661 } | 6657 } |
6662 } | 6658 } |
6663 | 6659 |
6664 bool JSFunction::has_literals_array() const { | |
6665 SharedFunctionInfo* shared = this->shared(); | |
6666 | |
6667 return (literals() != shared->GetIsolate()->heap()->empty_literals_array() || | |
6668 (shared->feedback_metadata()->slot_count() == 0 && | |
6669 shared->num_literals() == 0)); | |
6670 } | |
6671 | 6660 |
6672 Context* JSFunction::context() { | 6661 Context* JSFunction::context() { |
6673 return Context::cast(READ_FIELD(this, kContextOffset)); | 6662 return Context::cast(READ_FIELD(this, kContextOffset)); |
6674 } | 6663 } |
6675 | 6664 |
6676 | 6665 |
6677 JSObject* JSFunction::global_proxy() { | 6666 JSObject* JSFunction::global_proxy() { |
6678 return context()->global_proxy(); | 6667 return context()->global_proxy(); |
6679 } | 6668 } |
6680 | 6669 |
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8464 #undef WRITE_INT64_FIELD | 8453 #undef WRITE_INT64_FIELD |
8465 #undef READ_BYTE_FIELD | 8454 #undef READ_BYTE_FIELD |
8466 #undef WRITE_BYTE_FIELD | 8455 #undef WRITE_BYTE_FIELD |
8467 #undef NOBARRIER_READ_BYTE_FIELD | 8456 #undef NOBARRIER_READ_BYTE_FIELD |
8468 #undef NOBARRIER_WRITE_BYTE_FIELD | 8457 #undef NOBARRIER_WRITE_BYTE_FIELD |
8469 | 8458 |
8470 } // namespace internal | 8459 } // namespace internal |
8471 } // namespace v8 | 8460 } // namespace v8 |
8472 | 8461 |
8473 #endif // V8_OBJECTS_INL_H_ | 8462 #endif // V8_OBJECTS_INL_H_ |
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