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Side by Side Diff: src/transitions-inl.h

Issue 676393002: Reland "Limit the number of transitions allowed per hidden class." (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Make sure TransitionArray::Insert() is called only when it is allowed Created 6 years, 1 month ago
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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 #ifndef V8_TRANSITIONS_INL_H_ 5 #ifndef V8_TRANSITIONS_INL_H_
6 #define V8_TRANSITIONS_INL_H_ 6 #define V8_TRANSITIONS_INL_H_
7 7
8 #include "src/transitions.h" 8 #include "src/transitions.h"
9 9
10 namespace v8 { 10 namespace v8 {
(...skipping 142 matching lines...) Expand 10 before | Expand all | Expand 10 after
153 void TransitionArray::NoIncrementalWriteBarrierSet(int transition_number, 153 void TransitionArray::NoIncrementalWriteBarrierSet(int transition_number,
154 Name* key, 154 Name* key,
155 Map* target) { 155 Map* target) {
156 FixedArray::NoIncrementalWriteBarrierSet( 156 FixedArray::NoIncrementalWriteBarrierSet(
157 this, ToKeyIndex(transition_number), key); 157 this, ToKeyIndex(transition_number), key);
158 FixedArray::NoIncrementalWriteBarrierSet( 158 FixedArray::NoIncrementalWriteBarrierSet(
159 this, ToTargetIndex(transition_number), target); 159 this, ToTargetIndex(transition_number), target);
160 } 160 }
161 161
162 162
163 void TransitionArray::SetNumberOfTransitions(int number_of_transitions) {
164 if (IsFullTransitionArray()) {
165 DCHECK(number_of_transitions <= number_of_transitions_storage());
166 WRITE_FIELD(this, kTransitionLengthOffset,
167 Smi::FromInt(number_of_transitions));
168 }
169 }
170
171
163 #undef FIELD_ADDR 172 #undef FIELD_ADDR
164 #undef WRITE_FIELD 173 #undef WRITE_FIELD
165 #undef CONDITIONAL_WRITE_BARRIER 174 #undef CONDITIONAL_WRITE_BARRIER
166 175
167 176
168 } } // namespace v8::internal 177 } } // namespace v8::internal
169 178
170 #endif // V8_TRANSITIONS_INL_H_ 179 #endif // V8_TRANSITIONS_INL_H_
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