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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/ast/ast.h" | 8 #include "src/ast/ast.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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497 // Scope-specific information computed during parsing. | 497 // Scope-specific information computed during parsing. |
498 // | 498 // |
499 // The language mode of this scope. | 499 // The language mode of this scope. |
500 STATIC_ASSERT(LANGUAGE_END == 2); | 500 STATIC_ASSERT(LANGUAGE_END == 2); |
501 bool is_strict_ : 1; | 501 bool is_strict_ : 1; |
502 // This scope or a nested catch scope or with scope contain an 'eval' call. At | 502 // This scope or a nested catch scope or with scope contain an 'eval' call. At |
503 // the 'eval' call site this scope is the declaration scope. | 503 // the 'eval' call site this scope is the declaration scope. |
504 bool scope_calls_eval_ : 1; | 504 bool scope_calls_eval_ : 1; |
505 // This scope uses "super" property ('super.foo'). | 505 // This scope uses "super" property ('super.foo'). |
506 bool scope_uses_super_property_ : 1; | 506 bool scope_uses_super_property_ : 1; |
507 // This scope has a parameter called "arguments". | |
508 bool has_arguments_parameter_ : 1; | |
509 // This scope's declarations might not be executed in order (e.g., switch). | 507 // This scope's declarations might not be executed in order (e.g., switch). |
510 bool scope_nonlinear_ : 1; | 508 bool scope_nonlinear_ : 1; |
511 bool is_hidden_ : 1; | 509 bool is_hidden_ : 1; |
512 // Temporary workaround that allows masking of 'this' in debug-evalute scopes. | 510 // Temporary workaround that allows masking of 'this' in debug-evalute scopes. |
513 bool is_debug_evaluate_scope_ : 1; | 511 bool is_debug_evaluate_scope_ : 1; |
514 | 512 |
515 // Computed via PropagateScopeInfo. | 513 // Computed via PropagateScopeInfo. |
516 bool inner_scope_calls_eval_ : 1; | 514 bool inner_scope_calls_eval_ : 1; |
517 bool force_eager_compilation_ : 1; | 515 bool force_eager_compilation_ : 1; |
518 bool force_context_allocation_ : 1; | 516 bool force_context_allocation_ : 1; |
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848 void SetDefaults(); | 846 void SetDefaults(); |
849 | 847 |
850 // If the scope is a function scope, this is the function kind. | 848 // If the scope is a function scope, this is the function kind. |
851 const FunctionKind function_kind_; | 849 const FunctionKind function_kind_; |
852 | 850 |
853 bool has_simple_parameters_ : 1; | 851 bool has_simple_parameters_ : 1; |
854 // This scope contains an "use asm" annotation. | 852 // This scope contains an "use asm" annotation. |
855 bool asm_module_ : 1; | 853 bool asm_module_ : 1; |
856 // This scope's outer context is an asm module. | 854 // This scope's outer context is an asm module. |
857 bool asm_function_ : 1; | 855 bool asm_function_ : 1; |
| 856 // This scope has a parameter called "arguments". |
| 857 bool has_arguments_parameter_ : 1; |
858 | 858 |
859 // Info about the parameter list of a function. | 859 // Info about the parameter list of a function. |
860 int arity_; | 860 int arity_; |
861 int rest_index_; | 861 int rest_index_; |
862 Variable* rest_parameter_; | 862 Variable* rest_parameter_; |
863 // Compiler-allocated (user-invisible) temporaries. | 863 // Compiler-allocated (user-invisible) temporaries. |
864 ZoneList<Variable*> temps_; | 864 ZoneList<Variable*> temps_; |
865 // Parameter list in source order. | 865 // Parameter list in source order. |
866 ZoneList<Variable*> params_; | 866 ZoneList<Variable*> params_; |
867 // Map of function names to lists of functions defined in sloppy blocks | 867 // Map of function names to lists of functions defined in sloppy blocks |
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893 void AllocateModuleVariables(); | 893 void AllocateModuleVariables(); |
894 | 894 |
895 private: | 895 private: |
896 ModuleDescriptor* module_descriptor_; | 896 ModuleDescriptor* module_descriptor_; |
897 }; | 897 }; |
898 | 898 |
899 } // namespace internal | 899 } // namespace internal |
900 } // namespace v8 | 900 } // namespace v8 |
901 | 901 |
902 #endif // V8_AST_SCOPES_H_ | 902 #endif // V8_AST_SCOPES_H_ |
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