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Issue 1478943003: Use WeakCells in the optimized code map rather than traversing in pause. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Patch One. Created 5 years ago
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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/factory.h" 5 #include "src/factory.h"
6 6
7 #include "src/allocation-site-scopes.h" 7 #include "src/allocation-site-scopes.h"
8 #include "src/base/bits.h" 8 #include "src/base/bits.h"
9 #include "src/bootstrapper.h" 9 #include "src/bootstrapper.h"
10 #include "src/conversions.h" 10 #include "src/conversions.h"
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721 } 721 }
722 722
723 723
724 Handle<Context> Factory::NewNativeContext() { 724 Handle<Context> Factory::NewNativeContext() {
725 Handle<FixedArray> array = 725 Handle<FixedArray> array =
726 NewFixedArray(Context::NATIVE_CONTEXT_SLOTS, TENURED); 726 NewFixedArray(Context::NATIVE_CONTEXT_SLOTS, TENURED);
727 array->set_map_no_write_barrier(*native_context_map()); 727 array->set_map_no_write_barrier(*native_context_map());
728 Handle<Context> context = Handle<Context>::cast(array); 728 Handle<Context> context = Handle<Context>::cast(array);
729 context->set_js_array_maps(*undefined_value()); 729 context->set_js_array_maps(*undefined_value());
730 context->set_errors_thrown(Smi::FromInt(0)); 730 context->set_errors_thrown(Smi::FromInt(0));
731 Handle<WeakCell> weak_cell = NewWeakCell(context);
732 context->set_self_weak_cell(*weak_cell);
731 DCHECK(context->IsNativeContext()); 733 DCHECK(context->IsNativeContext());
732 return context; 734 return context;
733 } 735 }
734 736
735 737
736 Handle<Context> Factory::NewScriptContext(Handle<JSFunction> function, 738 Handle<Context> Factory::NewScriptContext(Handle<JSFunction> function,
737 Handle<ScopeInfo> scope_info) { 739 Handle<ScopeInfo> scope_info) {
738 Handle<FixedArray> array = 740 Handle<FixedArray> array =
739 NewFixedArray(scope_info->ContextLength(), TENURED); 741 NewFixedArray(scope_info->ContextLength(), TENURED);
740 array->set_map_no_write_barrier(*script_context_map()); 742 array->set_map_no_write_barrier(*script_context_map());
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2327 } 2329 }
2328 2330
2329 2331
2330 Handle<Object> Factory::ToBoolean(bool value) { 2332 Handle<Object> Factory::ToBoolean(bool value) {
2331 return value ? true_value() : false_value(); 2333 return value ? true_value() : false_value();
2332 } 2334 }
2333 2335
2334 2336
2335 } // namespace internal 2337 } // namespace internal
2336 } // namespace v8 2338 } // namespace v8
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