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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 #include "src/ast/scopes.h" | 5 #include "src/ast/scopes.h" |
| 6 | 6 |
| 7 #include <set> | 7 #include <set> |
| 8 | 8 |
| 9 #include "src/accessors.h" | 9 #include "src/accessors.h" |
| 10 #include "src/ast/ast.h" | 10 #include "src/ast/ast.h" |
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| 788 outer->AddInnerScope(this); | 788 outer->AddInnerScope(this); |
| 789 outer_scope_ = outer; | 789 outer_scope_ = outer; |
| 790 } | 790 } |
| 791 | 791 |
| 792 | 792 |
| 793 void Scope::PropagateUsageFlagsToScope(Scope* other) { | 793 void Scope::PropagateUsageFlagsToScope(Scope* other) { |
| 794 DCHECK_NOT_NULL(other); | 794 DCHECK_NOT_NULL(other); |
| 795 DCHECK(!already_resolved_); | 795 DCHECK(!already_resolved_); |
| 796 DCHECK(!other->already_resolved_); | 796 DCHECK(!other->already_resolved_); |
| 797 if (calls_eval()) other->RecordEvalCall(); | 797 if (calls_eval()) other->RecordEvalCall(); |
| 798 if (inner_scope_calls_eval_) other->inner_scope_calls_eval_ = true; |
| 798 } | 799 } |
| 799 | 800 |
| 800 Variable* Scope::LookupInScopeInfo(const AstRawString* name) { | 801 Variable* Scope::LookupInScopeInfo(const AstRawString* name) { |
| 801 Handle<String> name_handle = name->string(); | 802 Handle<String> name_handle = name->string(); |
| 802 // The Scope is backed up by ScopeInfo. This means it cannot operate in a | 803 // The Scope is backed up by ScopeInfo. This means it cannot operate in a |
| 803 // heap-independent mode, and all strings must be internalized immediately. So | 804 // heap-independent mode, and all strings must be internalized immediately. So |
| 804 // it's ok to get the Handle<String> here. | 805 // it's ok to get the Handle<String> here. |
| 805 // If we have a serialized scope info, we might find the variable there. | 806 // If we have a serialized scope info, we might find the variable there. |
| 806 // There should be no local slot with the given name. | 807 // There should be no local slot with the given name. |
| 807 DCHECK_LT(scope_info_->StackSlotIndex(*name_handle), 0); | 808 DCHECK_LT(scope_info_->StackSlotIndex(*name_handle), 0); |
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| 2071 Variable* function = | 2072 Variable* function = |
| 2072 is_function_scope() ? AsDeclarationScope()->function_var() : nullptr; | 2073 is_function_scope() ? AsDeclarationScope()->function_var() : nullptr; |
| 2073 bool is_function_var_in_context = | 2074 bool is_function_var_in_context = |
| 2074 function != nullptr && function->IsContextSlot(); | 2075 function != nullptr && function->IsContextSlot(); |
| 2075 return num_heap_slots() - Context::MIN_CONTEXT_SLOTS - | 2076 return num_heap_slots() - Context::MIN_CONTEXT_SLOTS - |
| 2076 (is_function_var_in_context ? 1 : 0); | 2077 (is_function_var_in_context ? 1 : 0); |
| 2077 } | 2078 } |
| 2078 | 2079 |
| 2079 } // namespace internal | 2080 } // namespace internal |
| 2080 } // namespace v8 | 2081 } // namespace v8 |
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