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1 // Copyright 2014 the V8 project authors. All rights reserved. | 1 // Copyright 2014 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 #include "src/lookup.h" | 5 #include "src/lookup.h" |
6 | 6 |
7 #include "src/bootstrapper.h" | 7 #include "src/bootstrapper.h" |
8 #include "src/deoptimizer.h" | 8 #include "src/deoptimizer.h" |
9 #include "src/isolate-inl.h" | 9 #include "src/isolate-inl.h" |
10 #include "src/lookup-inl.h" | 10 #include "src/lookup-inl.h" |
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127 void LookupIterator::PrepareForDataProperty(Handle<Object> value) { | 127 void LookupIterator::PrepareForDataProperty(Handle<Object> value) { |
128 DCHECK(state_ == DATA || state_ == ACCESSOR); | 128 DCHECK(state_ == DATA || state_ == ACCESSOR); |
129 DCHECK(HolderIsReceiverOrHiddenPrototype()); | 129 DCHECK(HolderIsReceiverOrHiddenPrototype()); |
130 | 130 |
131 Handle<JSObject> holder = GetHolder<JSObject>(); | 131 Handle<JSObject> holder = GetHolder<JSObject>(); |
132 | 132 |
133 if (IsElement()) { | 133 if (IsElement()) { |
134 ElementsKind kind = holder_map_->elements_kind(); | 134 ElementsKind kind = holder_map_->elements_kind(); |
135 ElementsKind to = value->OptimalElementsKind(); | 135 ElementsKind to = value->OptimalElementsKind(); |
136 if (IsHoleyElementsKind(kind)) to = GetHoleyElementsKind(to); | 136 if (IsHoleyElementsKind(kind)) to = GetHoleyElementsKind(to); |
137 to = IsMoreGeneralElementsKindTransition(kind, to) ? to : kind; | 137 to = GetMoreGeneralElementsKind(kind, to); |
138 JSObject::TransitionElementsKind(holder, to); | 138 JSObject::TransitionElementsKind(holder, to); |
139 holder_map_ = handle(holder->map(), isolate_); | 139 holder_map_ = handle(holder->map(), isolate_); |
140 | 140 |
141 // Copy the backing store if it is copy-on-write. | 141 // Copy the backing store if it is copy-on-write. |
142 if (IsFastSmiOrObjectElementsKind(to)) { | 142 if (IsFastSmiOrObjectElementsKind(to)) { |
143 JSObject::EnsureWritableFastElements(holder); | 143 JSObject::EnsureWritableFastElements(holder); |
144 } | 144 } |
145 | 145 |
146 } else { | 146 } else { |
147 if (holder_map_->is_dictionary_map()) return; | 147 if (holder_map_->is_dictionary_map()) return; |
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543 case InterceptorState::kSkipNonMasking: | 543 case InterceptorState::kSkipNonMasking: |
544 return true; | 544 return true; |
545 case InterceptorState::kProcessNonMasking: | 545 case InterceptorState::kProcessNonMasking: |
546 return false; | 546 return false; |
547 } | 547 } |
548 } | 548 } |
549 return interceptor_state_ == InterceptorState::kProcessNonMasking; | 549 return interceptor_state_ == InterceptorState::kProcessNonMasking; |
550 } | 550 } |
551 } // namespace internal | 551 } // namespace internal |
552 } // namespace v8 | 552 } // namespace v8 |
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