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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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689 // Enter 'scope' with the given parsing mode. | 689 // Enter 'scope' with the given parsing mode. |
690 ParsingModeScope parsing_mode_scope(this, parsing_mode); | 690 ParsingModeScope parsing_mode_scope(this, parsing_mode); |
691 FunctionState function_state(&function_state_, &scope_state_, scope, | 691 FunctionState function_state(&function_state_, &scope_state_, scope, |
692 kNormalFunction); | 692 kNormalFunction); |
693 | 693 |
694 ZoneList<Statement*>* body = new(zone()) ZoneList<Statement*>(16, zone()); | 694 ZoneList<Statement*>* body = new(zone()) ZoneList<Statement*>(16, zone()); |
695 bool ok = true; | 695 bool ok = true; |
696 int beg_pos = scanner()->location().beg_pos; | 696 int beg_pos = scanner()->location().beg_pos; |
697 parsing_module_ = info->is_module(); | 697 parsing_module_ = info->is_module(); |
698 if (parsing_module_) { | 698 if (parsing_module_) { |
| 699 // Declare the special module parameter. |
| 700 auto name = ast_value_factory()->empty_string(); |
| 701 bool is_duplicate; |
| 702 bool is_rest = false; |
| 703 bool is_optional = false; |
| 704 auto var = scope->DeclareParameter(name, VAR, is_optional, is_rest, |
| 705 &is_duplicate, ast_value_factory()); |
| 706 DCHECK(!is_duplicate); |
| 707 var->AllocateTo(VariableLocation::PARAMETER, 0); |
| 708 |
699 ParseModuleItemList(body, &ok); | 709 ParseModuleItemList(body, &ok); |
700 ok = ok && | 710 ok = ok && |
701 module()->Validate(this->scope()->AsModuleScope(), | 711 module()->Validate(this->scope()->AsModuleScope(), |
702 &pending_error_handler_, zone()); | 712 &pending_error_handler_, zone()); |
703 } else { | 713 } else { |
704 // Don't count the mode in the use counters--give the program a chance | 714 // Don't count the mode in the use counters--give the program a chance |
705 // to enable script-wide strict mode below. | 715 // to enable script-wide strict mode below. |
706 this->scope()->SetLanguageMode(info->language_mode()); | 716 this->scope()->SetLanguageMode(info->language_mode()); |
707 ParseStatementList(body, Token::EOS, &ok); | 717 ParseStatementList(body, Token::EOS, &ok); |
708 } | 718 } |
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732 !body->at(0)->IsExpressionStatement() || | 742 !body->at(0)->IsExpressionStatement() || |
733 !body->at(0)->AsExpressionStatement()-> | 743 !body->at(0)->AsExpressionStatement()-> |
734 expression()->IsFunctionLiteral()) { | 744 expression()->IsFunctionLiteral()) { |
735 ReportMessage(MessageTemplate::kSingleFunctionLiteral); | 745 ReportMessage(MessageTemplate::kSingleFunctionLiteral); |
736 ok = false; | 746 ok = false; |
737 } | 747 } |
738 } | 748 } |
739 | 749 |
740 if (ok) { | 750 if (ok) { |
741 RewriteDestructuringAssignments(); | 751 RewriteDestructuringAssignments(); |
| 752 int parameter_count = parsing_module_ ? 1 : 0; |
742 result = factory()->NewScriptOrEvalFunctionLiteral( | 753 result = factory()->NewScriptOrEvalFunctionLiteral( |
743 scope, body, function_state.materialized_literal_count(), | 754 scope, body, function_state.materialized_literal_count(), |
744 function_state.expected_property_count()); | 755 function_state.expected_property_count(), parameter_count); |
745 } | 756 } |
746 } | 757 } |
747 | 758 |
748 // Make sure the target stack is empty. | 759 // Make sure the target stack is empty. |
749 DCHECK(target_stack_ == NULL); | 760 DCHECK(target_stack_ == NULL); |
750 | 761 |
751 return result; | 762 return result; |
752 } | 763 } |
753 | 764 |
754 | 765 |
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6648 node->Print(Isolate::Current()); | 6659 node->Print(Isolate::Current()); |
6649 } | 6660 } |
6650 #endif // DEBUG | 6661 #endif // DEBUG |
6651 | 6662 |
6652 #undef CHECK_OK | 6663 #undef CHECK_OK |
6653 #undef CHECK_OK_VOID | 6664 #undef CHECK_OK_VOID |
6654 #undef CHECK_FAILED | 6665 #undef CHECK_FAILED |
6655 | 6666 |
6656 } // namespace internal | 6667 } // namespace internal |
6657 } // namespace v8 | 6668 } // namespace v8 |
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