OLD | NEW |
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 |
(...skipping 108 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
119 Variable* LookupFunctionVar(Handle<String> name, | 119 Variable* LookupFunctionVar(Handle<String> name, |
120 AstNodeFactory<AstNullVisitor>* factory); | 120 AstNodeFactory<AstNullVisitor>* factory); |
121 | 121 |
122 // Lookup a variable in this scope or outer scopes. | 122 // Lookup a variable in this scope or outer scopes. |
123 // Returns the variable or NULL if not found. | 123 // Returns the variable or NULL if not found. |
124 Variable* Lookup(Handle<String> name); | 124 Variable* Lookup(Handle<String> name); |
125 | 125 |
126 // Declare the function variable for a function literal. This variable | 126 // Declare the function variable for a function literal. This variable |
127 // is in an intermediate scope between this function scope and the the | 127 // is in an intermediate scope between this function scope and the the |
128 // outer scope. Only possible for function scopes; at most one variable. | 128 // outer scope. Only possible for function scopes; at most one variable. |
129 template<class Visitor> | 129 void DeclareFunctionVar(VariableDeclaration* declaration) { |
130 Variable* DeclareFunctionVar(Handle<String> name, | 130 ASSERT(is_function_scope()); |
131 VariableMode mode, | 131 function_ = declaration; |
132 AstNodeFactory<Visitor>* factory) { | |
133 ASSERT(is_function_scope() && function_ == NULL); | |
134 Variable* function_var = new Variable( | |
135 this, name, mode, true, Variable::NORMAL, kCreatedInitialized); | |
136 function_ = factory->NewVariableProxy(function_var); | |
137 return function_var; | |
138 } | 132 } |
139 | 133 |
140 // Declare a parameter in this scope. When there are duplicated | 134 // Declare a parameter in this scope. When there are duplicated |
141 // parameters the rightmost one 'wins'. However, the implementation | 135 // parameters the rightmost one 'wins'. However, the implementation |
142 // expects all parameters to be declared and from left to right. | 136 // expects all parameters to be declared and from left to right. |
143 void DeclareParameter(Handle<String> name, VariableMode mode); | 137 void DeclareParameter(Handle<String> name, VariableMode mode); |
144 | 138 |
145 // Declare a local variable in this scope. If the variable has been | 139 // Declare a local variable in this scope. If the variable has been |
146 // declared before, the previously declared variable is returned. | 140 // declared before, the previously declared variable is returned. |
147 Variable* DeclareLocal(Handle<String> name, | 141 Variable* DeclareLocal(Handle<String> name, |
(...skipping 157 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
305 // The type of this scope. | 299 // The type of this scope. |
306 ScopeType type() const { return type_; } | 300 ScopeType type() const { return type_; } |
307 | 301 |
308 // The language mode of this scope. | 302 // The language mode of this scope. |
309 LanguageMode language_mode() const { return language_mode_; } | 303 LanguageMode language_mode() const { return language_mode_; } |
310 | 304 |
311 // The variable corresponding the 'this' value. | 305 // The variable corresponding the 'this' value. |
312 Variable* receiver() { return receiver_; } | 306 Variable* receiver() { return receiver_; } |
313 | 307 |
314 // The variable holding the function literal for named function | 308 // The variable holding the function literal for named function |
315 // literals, or NULL. | 309 // literals, or NULL. Only valid for function scopes. |
316 // Only valid for function scopes. | 310 VariableDeclaration* function() const { |
317 VariableProxy* function() const { | |
318 ASSERT(is_function_scope()); | 311 ASSERT(is_function_scope()); |
319 return function_; | 312 return function_; |
320 } | 313 } |
321 | 314 |
322 // Parameters. The left-most parameter has index 0. | 315 // Parameters. The left-most parameter has index 0. |
323 // Only valid for function scopes. | 316 // Only valid for function scopes. |
324 Variable* parameter(int index) const { | 317 Variable* parameter(int index) const { |
325 ASSERT(is_function_scope()); | 318 ASSERT(is_function_scope()); |
326 return params_[index]; | 319 return params_[index]; |
327 } | 320 } |
(...skipping 111 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
439 ZoneList<Variable*> params_; | 432 ZoneList<Variable*> params_; |
440 // Variables that must be looked up dynamically. | 433 // Variables that must be looked up dynamically. |
441 DynamicScopePart* dynamics_; | 434 DynamicScopePart* dynamics_; |
442 // Unresolved variables referred to from this scope. | 435 // Unresolved variables referred to from this scope. |
443 ZoneList<VariableProxy*> unresolved_; | 436 ZoneList<VariableProxy*> unresolved_; |
444 // Declarations. | 437 // Declarations. |
445 ZoneList<Declaration*> decls_; | 438 ZoneList<Declaration*> decls_; |
446 // Convenience variable. | 439 // Convenience variable. |
447 Variable* receiver_; | 440 Variable* receiver_; |
448 // Function variable, if any; function scopes only. | 441 // Function variable, if any; function scopes only. |
449 VariableProxy* function_; | 442 VariableDeclaration* function_; |
450 // Convenience variable; function scopes only. | 443 // Convenience variable; function scopes only. |
451 Variable* arguments_; | 444 Variable* arguments_; |
452 // Interface; module scopes only. | 445 // Interface; module scopes only. |
453 Interface* interface_; | 446 Interface* interface_; |
454 | 447 |
455 // Illegal redeclaration. | 448 // Illegal redeclaration. |
456 Expression* illegal_redecl_; | 449 Expression* illegal_redecl_; |
457 | 450 |
458 // Scope-specific information computed during parsing. | 451 // Scope-specific information computed during parsing. |
459 // | 452 // |
(...skipping 138 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
598 } | 591 } |
599 | 592 |
600 void SetDefaults(ScopeType type, | 593 void SetDefaults(ScopeType type, |
601 Scope* outer_scope, | 594 Scope* outer_scope, |
602 Handle<ScopeInfo> scope_info); | 595 Handle<ScopeInfo> scope_info); |
603 }; | 596 }; |
604 | 597 |
605 } } // namespace v8::internal | 598 } } // namespace v8::internal |
606 | 599 |
607 #endif // V8_SCOPES_H_ | 600 #endif // V8_SCOPES_H_ |
OLD | NEW |