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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 #include "src/parsing/parser.h" | 5 #include "src/parsing/parser.h" |
6 | 6 |
7 #include <memory> | 7 #include <memory> |
8 | 8 |
9 #include "src/api.h" | 9 #include "src/api.h" |
10 #include "src/ast/ast-expression-rewriter.h" | 10 #include "src/ast/ast-expression-rewriter.h" |
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735 // Enter 'scope' with the given parsing mode. | 735 // Enter 'scope' with the given parsing mode. |
736 ParsingModeScope parsing_mode_scope(this, parsing_mode); | 736 ParsingModeScope parsing_mode_scope(this, parsing_mode); |
737 FunctionState function_state(&function_state_, &scope_state_, scope, | 737 FunctionState function_state(&function_state_, &scope_state_, scope, |
738 kNormalFunction); | 738 kNormalFunction); |
739 | 739 |
740 ZoneList<Statement*>* body = new(zone()) ZoneList<Statement*>(16, zone()); | 740 ZoneList<Statement*>* body = new(zone()) ZoneList<Statement*>(16, zone()); |
741 bool ok = true; | 741 bool ok = true; |
742 int beg_pos = scanner()->location().beg_pos; | 742 int beg_pos = scanner()->location().beg_pos; |
743 parsing_module_ = info->is_module(); | 743 parsing_module_ = info->is_module(); |
744 if (parsing_module_) { | 744 if (parsing_module_) { |
745 // Declare the special module parameter. | |
746 auto name = ast_value_factory()->empty_string(); | |
747 bool is_duplicate; | |
748 bool is_rest = false; | |
749 bool is_optional = false; | |
750 auto var = scope->DeclareParameter(name, VAR, is_optional, is_rest, | |
751 &is_duplicate, ast_value_factory()); | |
752 DCHECK(!is_duplicate); | |
753 var->AllocateTo(VariableLocation::PARAMETER, 0); | |
754 | |
755 ParseModuleItemList(body, &ok); | 745 ParseModuleItemList(body, &ok); |
756 ok = ok && | 746 ok = ok && |
757 module()->Validate(this->scope()->AsModuleScope(), | 747 module()->Validate(this->scope()->AsModuleScope(), |
758 &pending_error_handler_, zone()); | 748 &pending_error_handler_, zone()); |
759 } else { | 749 } else { |
760 // Don't count the mode in the use counters--give the program a chance | 750 // Don't count the mode in the use counters--give the program a chance |
761 // to enable script-wide strict mode below. | 751 // to enable script-wide strict mode below. |
762 this->scope()->SetLanguageMode(info->language_mode()); | 752 this->scope()->SetLanguageMode(info->language_mode()); |
763 ParseStatementList(body, Token::EOS, &ok); | 753 ParseStatementList(body, Token::EOS, &ok); |
764 } | 754 } |
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788 !body->at(0)->IsExpressionStatement() || | 778 !body->at(0)->IsExpressionStatement() || |
789 !body->at(0)->AsExpressionStatement()-> | 779 !body->at(0)->AsExpressionStatement()-> |
790 expression()->IsFunctionLiteral()) { | 780 expression()->IsFunctionLiteral()) { |
791 ReportMessage(MessageTemplate::kSingleFunctionLiteral); | 781 ReportMessage(MessageTemplate::kSingleFunctionLiteral); |
792 ok = false; | 782 ok = false; |
793 } | 783 } |
794 } | 784 } |
795 | 785 |
796 if (ok) { | 786 if (ok) { |
797 RewriteDestructuringAssignments(); | 787 RewriteDestructuringAssignments(); |
798 int parameter_count = parsing_module_ ? 1 : 0; | |
799 result = factory()->NewScriptOrEvalFunctionLiteral( | 788 result = factory()->NewScriptOrEvalFunctionLiteral( |
800 scope, body, function_state.materialized_literal_count(), | 789 scope, body, function_state.materialized_literal_count(), |
801 function_state.expected_property_count(), parameter_count); | 790 function_state.expected_property_count()); |
802 } | 791 } |
803 } | 792 } |
804 | 793 |
805 // Make sure the target stack is empty. | 794 // Make sure the target stack is empty. |
806 DCHECK(target_stack_ == NULL); | 795 DCHECK(target_stack_ == NULL); |
807 | 796 |
808 return result; | 797 return result; |
809 } | 798 } |
810 | 799 |
811 | 800 |
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5687 node->Print(Isolate::Current()); | 5676 node->Print(Isolate::Current()); |
5688 } | 5677 } |
5689 #endif // DEBUG | 5678 #endif // DEBUG |
5690 | 5679 |
5691 #undef CHECK_OK | 5680 #undef CHECK_OK |
5692 #undef CHECK_OK_VOID | 5681 #undef CHECK_OK_VOID |
5693 #undef CHECK_FAILED | 5682 #undef CHECK_FAILED |
5694 | 5683 |
5695 } // namespace internal | 5684 } // namespace internal |
5696 } // namespace v8 | 5685 } // namespace v8 |
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