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Issue 1168093002: [strong] Implement strong mode restrictions on property access (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: rebase Created 5 years, 6 months 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/code-factory.h" 5 #include "src/code-factory.h"
6 #include "src/compiler/access-builder.h" 6 #include "src/compiler/access-builder.h"
7 #include "src/compiler/js-graph.h" 7 #include "src/compiler/js-graph.h"
8 #include "src/compiler/js-typed-lowering.h" 8 #include "src/compiler/js-typed-lowering.h"
9 #include "src/compiler/linkage.h" 9 #include "src/compiler/linkage.h"
10 #include "src/compiler/node-matchers.h" 10 #include "src/compiler/node-matchers.h"
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1018 check_false->AppendInput(graph()->zone(), if_false); 1018 check_false->AppendInput(graph()->zone(), if_false);
1019 check_true = if_true; 1019 check_true = if_true;
1020 } 1020 }
1021 1021
1022 // Fast case, because variable is not shadowed. Perform global object load. 1022 // Fast case, because variable is not shadowed. Perform global object load.
1023 Unique<Name> name = Unique<Name>::CreateUninitialized(access.name()); 1023 Unique<Name> name = Unique<Name>::CreateUninitialized(access.name());
1024 Node* global = graph()->NewNode( 1024 Node* global = graph()->NewNode(
1025 javascript()->LoadContext(0, Context::GLOBAL_OBJECT_INDEX, true), context, 1025 javascript()->LoadContext(0, Context::GLOBAL_OBJECT_INDEX, true), context,
1026 context, effect); 1026 context, effect);
1027 Node* fast = graph()->NewNode( 1027 Node* fast = graph()->NewNode(
1028 javascript()->LoadNamed(name, access.feedback(), access.mode()), global, 1028 javascript()->LoadNamed(name, access.feedback(), SLOPPY, access.mode()),
1029 vector, context, state1, state2, global, check_true); 1029 global, vector, context, state1, state2, global, check_true);
1030 1030
1031 // Slow case, because variable potentially shadowed. Perform dynamic lookup. 1031 // Slow case, because variable potentially shadowed. Perform dynamic lookup.
1032 uint32_t check_bitset = DynamicGlobalAccess::kFullCheckRequired; 1032 uint32_t check_bitset = DynamicGlobalAccess::kFullCheckRequired;
1033 Node* slow = graph()->NewNode( 1033 Node* slow = graph()->NewNode(
1034 javascript()->LoadDynamicGlobal(access.name(), check_bitset, 1034 javascript()->LoadDynamicGlobal(access.name(), check_bitset,
1035 access.feedback(), access.mode()), 1035 access.feedback(), access.mode()),
1036 vector, context, context, state1, state2, effect, check_false); 1036 vector, context, context, state1, state2, effect, check_false);
1037 1037
1038 // Replace value, effect and control uses accordingly. 1038 // Replace value, effect and control uses accordingly.
1039 Node* new_control = 1039 Node* new_control =
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1707 } 1707 }
1708 1708
1709 1709
1710 MachineOperatorBuilder* JSTypedLowering::machine() const { 1710 MachineOperatorBuilder* JSTypedLowering::machine() const {
1711 return jsgraph()->machine(); 1711 return jsgraph()->machine();
1712 } 1712 }
1713 1713
1714 } // namespace compiler 1714 } // namespace compiler
1715 } // namespace internal 1715 } // namespace internal
1716 } // namespace v8 1716 } // namespace v8
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