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| 1 // Copyright 2011 the V8 project authors. All rights reserved. | 1 // Copyright 2011 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/v8.h" | 5 #include "src/v8.h" |
| 6 | 6 |
| 7 #include "src/ast.h" | 7 #include "src/ast.h" |
| 8 #include "src/scopes.h" | 8 #include "src/scopes.h" |
| 9 #include "src/variables.h" | 9 #include "src/variables.h" |
| 10 | 10 |
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| 51 initialization_flag_(initialization_flag), | 51 initialization_flag_(initialization_flag), |
| 52 maybe_assigned_(maybe_assigned_flag) { | 52 maybe_assigned_(maybe_assigned_flag) { |
| 53 // Var declared variables never need initialization. | 53 // Var declared variables never need initialization. |
| 54 DCHECK(!(mode == VAR && initialization_flag == kNeedsInitialization)); | 54 DCHECK(!(mode == VAR && initialization_flag == kNeedsInitialization)); |
| 55 } | 55 } |
| 56 | 56 |
| 57 | 57 |
| 58 bool Variable::IsGlobalObjectProperty() const { | 58 bool Variable::IsGlobalObjectProperty() const { |
| 59 // Temporaries are never global, they must always be allocated in the | 59 // Temporaries are never global, they must always be allocated in the |
| 60 // activation frame. | 60 // activation frame. |
| 61 return IsDynamicVariableMode(mode_) || IsStaticGlobalObjectProperty(); | 61 return (IsDynamicVariableMode(mode_) || |
| 62 (IsDeclaredVariableMode(mode_) && !IsLexicalVariableMode(mode_))) && |
| 63 scope_ != NULL && scope_->is_script_scope() && !is_this(); |
| 62 } | 64 } |
| 63 | 65 |
| 64 | 66 |
| 65 bool Variable::IsStaticGlobalObjectProperty() const { | 67 bool Variable::IsStaticGlobalObjectProperty() const { |
| 66 // Temporaries are never global, they must always be allocated in the | 68 // Temporaries are never global, they must always be allocated in the |
| 67 // activation frame. | 69 // activation frame. |
| 68 return (IsDeclaredVariableMode(mode_) && !IsLexicalVariableMode(mode_)) && | 70 return (IsDeclaredVariableMode(mode_) && !IsLexicalVariableMode(mode_)) && |
| 69 scope_ != NULL && scope_->is_script_scope() && !is_this(); | 71 scope_ != NULL && scope_->is_script_scope() && !is_this(); |
| 70 } | 72 } |
| 71 | 73 |
| 72 | 74 |
| 73 int Variable::CompareIndex(Variable* const* v, Variable* const* w) { | 75 int Variable::CompareIndex(Variable* const* v, Variable* const* w) { |
| 74 int x = (*v)->index(); | 76 int x = (*v)->index(); |
| 75 int y = (*w)->index(); | 77 int y = (*w)->index(); |
| 76 // Consider sorting them according to type as well? | 78 // Consider sorting them according to type as well? |
| 77 return x - y; | 79 return x - y; |
| 78 } | 80 } |
| 79 | 81 |
| 80 } // namespace internal | 82 } // namespace internal |
| 81 } // namespace v8 | 83 } // namespace v8 |
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