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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 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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182 // may have been added optimistically, but then only the variable name | 182 // may have been added optimistically, but then only the variable name |
183 // was used (typically for labels). If the variable was not declared, the | 183 // was used (typically for labels). If the variable was not declared, the |
184 // addition introduced a new unresolved variable which may end up being | 184 // addition introduced a new unresolved variable which may end up being |
185 // allocated globally as a "ghost" variable. RemoveUnresolved removes | 185 // allocated globally as a "ghost" variable. RemoveUnresolved removes |
186 // such a variable again if it was added; otherwise this is a no-op. | 186 // such a variable again if it was added; otherwise this is a no-op. |
187 void RemoveUnresolved(VariableProxy* var); | 187 void RemoveUnresolved(VariableProxy* var); |
188 | 188 |
189 // Creates a new temporary variable in this scope. The name is only used | 189 // Creates a new temporary variable in this scope. The name is only used |
190 // for printing and cannot be used to find the variable. In particular, | 190 // for printing and cannot be used to find the variable. In particular, |
191 // the only way to get hold of the temporary is by keeping the Variable* | 191 // the only way to get hold of the temporary is by keeping the Variable* |
192 // around. | 192 // around. The name should not clash with a legitimate variable names. |
193 Variable* NewTemporary(Handle<String> name); | 193 Variable* NewTemporary(Handle<String> name); |
194 | 194 |
195 // Adds the specific declaration node to the list of declarations in | 195 // Adds the specific declaration node to the list of declarations in |
196 // this scope. The declarations are processed as part of entering | 196 // this scope. The declarations are processed as part of entering |
197 // the scope; see codegen.cc:ProcessDeclarations. | 197 // the scope; see codegen.cc:ProcessDeclarations. |
198 void AddDeclaration(Declaration* declaration); | 198 void AddDeclaration(Declaration* declaration); |
199 | 199 |
200 // --------------------------------------------------------------------------- | 200 // --------------------------------------------------------------------------- |
201 // Illegal redeclaration support. | 201 // Illegal redeclaration support. |
202 | 202 |
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616 void SetDefaults(ScopeType type, | 616 void SetDefaults(ScopeType type, |
617 Scope* outer_scope, | 617 Scope* outer_scope, |
618 Handle<ScopeInfo> scope_info); | 618 Handle<ScopeInfo> scope_info); |
619 | 619 |
620 Zone* zone_; | 620 Zone* zone_; |
621 }; | 621 }; |
622 | 622 |
623 } } // namespace v8::internal | 623 } } // namespace v8::internal |
624 | 624 |
625 #endif // V8_SCOPES_H_ | 625 #endif // V8_SCOPES_H_ |
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