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Side by Side Diff: src/scopes.h

Issue 1146863007: [es6] Super call in arrows and eval (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Created 5 years, 6 months ago
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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_SCOPES_H_ 5 #ifndef V8_SCOPES_H_
6 #define V8_SCOPES_H_ 6 #define V8_SCOPES_H_
7 7
8 #include "src/ast.h" 8 #include "src/ast.h"
9 #include "src/pending-compilation-error-handler.h" 9 #include "src/pending-compilation-error-handler.h"
10 #include "src/zone.h" 10 #include "src/zone.h"
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412 // A local variable to the [[HomeObject]] used by methods if we need to 412 // A local variable to the [[HomeObject]] used by methods if we need to
413 // allocate it; NULL otherwise. 413 // allocate it; NULL otherwise.
414 Variable* home_object_var() const { 414 Variable* home_object_var() const {
415 DCHECK(home_object_ == nullptr || 415 DCHECK(home_object_ == nullptr ||
416 (is_function_scope() && (IsConciseMethod(function_kind()) || 416 (is_function_scope() && (IsConciseMethod(function_kind()) ||
417 IsAccessorFunction(function_kind()) || 417 IsAccessorFunction(function_kind()) ||
418 IsConstructor(function_kind())))); 418 IsConstructor(function_kind()))));
419 return home_object_; 419 return home_object_;
420 } 420 }
421 421
422 Variable* this_function_var() const {
423 // This is only used in derived constructors atm.
424 DCHECK(this_function_ == nullptr ||
425 (is_function_scope() && IsSubclassConstructor(function_kind())));
426 return this_function_;
427 }
428
422 // Declarations list. 429 // Declarations list.
423 ZoneList<Declaration*>* declarations() { return &decls_; } 430 ZoneList<Declaration*>* declarations() { return &decls_; }
424 431
425 // Inner scope list. 432 // Inner scope list.
426 ZoneList<Scope*>* inner_scopes() { return &inner_scopes_; } 433 ZoneList<Scope*>* inner_scopes() { return &inner_scopes_; }
427 434
428 // The scope immediately surrounding this scope, or NULL. 435 // The scope immediately surrounding this scope, or NULL.
429 Scope* outer_scope() const { return outer_scope_; } 436 Scope* outer_scope() const { return outer_scope_; }
430 437
431 // The ModuleDescriptor for this scope; only for module scopes. 438 // The ModuleDescriptor for this scope; only for module scopes.
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572 // Convenience variable. 579 // Convenience variable.
573 Variable* receiver_; 580 Variable* receiver_;
574 // Function variable, if any; function scopes only. 581 // Function variable, if any; function scopes only.
575 VariableDeclaration* function_; 582 VariableDeclaration* function_;
576 // new.target variable, function scopes only. 583 // new.target variable, function scopes only.
577 Variable* new_target_; 584 Variable* new_target_;
578 // Convenience variable; function scopes only. 585 // Convenience variable; function scopes only.
579 Variable* arguments_; 586 Variable* arguments_;
580 // Convenience variable; method scopes only. 587 // Convenience variable; method scopes only.
581 Variable* home_object_; 588 Variable* home_object_;
589 // Convenience variable; Subclass constructor only
590 Variable* this_function_;
582 // Module descriptor; module scopes only. 591 // Module descriptor; module scopes only.
583 ModuleDescriptor* module_descriptor_; 592 ModuleDescriptor* module_descriptor_;
584 593
585 // Illegal redeclaration. 594 // Illegal redeclaration.
586 Expression* illegal_redecl_; 595 Expression* illegal_redecl_;
587 596
588 // Scope-specific information computed during parsing. 597 // Scope-specific information computed during parsing.
589 // 598 //
590 // This scope is inside a 'with' of some outer scope. 599 // This scope is inside a 'with' of some outer scope.
591 bool scope_inside_with_; 600 bool scope_inside_with_;
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765 PendingCompilationErrorHandler pending_error_handler_; 774 PendingCompilationErrorHandler pending_error_handler_;
766 775
767 // For tracking which classes are declared consecutively. Needed for strong 776 // For tracking which classes are declared consecutively. Needed for strong
768 // mode. 777 // mode.
769 int class_declaration_group_start_; 778 int class_declaration_group_start_;
770 }; 779 };
771 780
772 } } // namespace v8::internal 781 } } // namespace v8::internal
773 782
774 #endif // V8_SCOPES_H_ 783 #endif // V8_SCOPES_H_
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