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| 1 // Copyright 2016 the V8 project authors. All rights reserved. | 1 // Copyright 2016 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_AST_CONTEXT_SLOT_CACHE_H_ | 5 #ifndef V8_AST_CONTEXT_SLOT_CACHE_H_ |
| 6 #define V8_AST_CONTEXT_SLOT_CACHE_H_ | 6 #define V8_AST_CONTEXT_SLOT_CACHE_H_ |
| 7 | 7 |
| 8 #include "src/allocation.h" | 8 #include "src/allocation.h" |
| 9 #include "src/ast/modules.h" | 9 #include "src/ast/modules.h" |
| 10 #include "src/ast/variables.h" | |
| 11 | 10 |
| 12 namespace v8 { | 11 namespace v8 { |
| 13 namespace internal { | 12 namespace internal { |
| 14 | 13 |
| 15 // Cache for mapping (data, property name) into context slot index. | 14 // Cache for mapping (data, property name) into context slot index. |
| 16 // The cache contains both positive and negative results. | 15 // The cache contains both positive and negative results. |
| 17 // Slot index equals -1 means the property is absent. | 16 // Slot index equals -1 means the property is absent. |
| 18 // Cleared at startup and prior to mark sweep collection. | 17 // Cleared at startup and prior to mark sweep collection. |
| 19 class ContextSlotCache { | 18 class ContextSlotCache { |
| 20 public: | 19 public: |
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| 104 uint32_t values_[kLength]; | 103 uint32_t values_[kLength]; |
| 105 | 104 |
| 106 friend class Isolate; | 105 friend class Isolate; |
| 107 DISALLOW_COPY_AND_ASSIGN(ContextSlotCache); | 106 DISALLOW_COPY_AND_ASSIGN(ContextSlotCache); |
| 108 }; | 107 }; |
| 109 | 108 |
| 110 } // namespace internal | 109 } // namespace internal |
| 111 } // namespace v8 | 110 } // namespace v8 |
| 112 | 111 |
| 113 #endif // V8_AST_CONTEXT_SLOT_CACHE_H_ | 112 #endif // V8_AST_CONTEXT_SLOT_CACHE_H_ |
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