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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 #ifndef V8_AST_SCOPES_H_ | 5 #ifndef V8_AST_SCOPES_H_ |
6 #define V8_AST_SCOPES_H_ | 6 #define V8_AST_SCOPES_H_ |
7 | 7 |
8 #include "src/base/compiler-specific.h" | 8 #include "src/base/compiler-specific.h" |
9 #include "src/base/hashmap.h" | 9 #include "src/base/hashmap.h" |
10 #include "src/globals.h" | 10 #include "src/globals.h" |
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176 | 176 |
177 void AddUnresolved(VariableProxy* proxy); | 177 void AddUnresolved(VariableProxy* proxy); |
178 | 178 |
179 // Remove a unresolved variable. During parsing, an unresolved variable | 179 // Remove a unresolved variable. During parsing, an unresolved variable |
180 // may have been added optimistically, but then only the variable name | 180 // may have been added optimistically, but then only the variable name |
181 // was used (typically for labels). If the variable was not declared, the | 181 // was used (typically for labels). If the variable was not declared, the |
182 // addition introduced a new unresolved variable which may end up being | 182 // addition introduced a new unresolved variable which may end up being |
183 // allocated globally as a "ghost" variable. RemoveUnresolved removes | 183 // allocated globally as a "ghost" variable. RemoveUnresolved removes |
184 // such a variable again if it was added; otherwise this is a no-op. | 184 // such a variable again if it was added; otherwise this is a no-op. |
185 bool RemoveUnresolved(VariableProxy* var); | 185 bool RemoveUnresolved(VariableProxy* var); |
186 bool RemoveUnresolved(const AstRawString* name); | |
187 | 186 |
188 // Creates a new temporary variable in this scope's TemporaryScope. The | 187 // Creates a new temporary variable in this scope's TemporaryScope. The |
189 // name is only used for printing and cannot be used to find the variable. | 188 // name is only used for printing and cannot be used to find the variable. |
190 // In particular, the only way to get hold of the temporary is by keeping the | 189 // In particular, the only way to get hold of the temporary is by keeping the |
191 // Variable* around. The name should not clash with a legitimate variable | 190 // Variable* around. The name should not clash with a legitimate variable |
192 // names. | 191 // names. |
193 // TODO(verwaest): Move to DeclarationScope? | 192 // TODO(verwaest): Move to DeclarationScope? |
194 Variable* NewTemporary(const AstRawString* name); | 193 Variable* NewTemporary(const AstRawString* name); |
195 | 194 |
196 // --------------------------------------------------------------------------- | 195 // --------------------------------------------------------------------------- |
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874 void AllocateModuleVariables(); | 873 void AllocateModuleVariables(); |
875 | 874 |
876 private: | 875 private: |
877 ModuleDescriptor* module_descriptor_; | 876 ModuleDescriptor* module_descriptor_; |
878 }; | 877 }; |
879 | 878 |
880 } // namespace internal | 879 } // namespace internal |
881 } // namespace v8 | 880 } // namespace v8 |
882 | 881 |
883 #endif // V8_AST_SCOPES_H_ | 882 #endif // V8_AST_SCOPES_H_ |
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