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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_PARSING_PARSER_H_ | 5 #ifndef V8_PARSING_PARSER_H_ |
6 #define V8_PARSING_PARSER_H_ | 6 #define V8_PARSING_PARSER_H_ |
7 | 7 |
8 #include "src/ast/ast.h" | 8 #include "src/ast/ast.h" |
9 #include "src/ast/scopes.h" | 9 #include "src/ast/scopes.h" |
10 #include "src/base/compiler-specific.h" | 10 #include "src/base/compiler-specific.h" |
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455 Block* block_; | 455 Block* block_; |
456 const DeclarationDescriptor* descriptor_; | 456 const DeclarationDescriptor* descriptor_; |
457 ZoneList<const AstRawString*>* names_; | 457 ZoneList<const AstRawString*>* names_; |
458 Expression* current_value_; | 458 Expression* current_value_; |
459 int recursion_level_; | 459 int recursion_level_; |
460 bool* ok_; | 460 bool* ok_; |
461 | 461 |
462 DEFINE_AST_VISITOR_MEMBERS_WITHOUT_STACKOVERFLOW() | 462 DEFINE_AST_VISITOR_MEMBERS_WITHOUT_STACKOVERFLOW() |
463 }; | 463 }; |
464 | 464 |
465 // !%_IsJSReceiver(result = iterator.next()) && | 465 // [if (IteratorType == kAsync)] |
466 // %ThrowIteratorResultNotAnObject(result) | 466 // !%_IsJSReceiver(result = Await(iterator.next()) && |
| 467 // %ThrowIteratorResultNotAnObject(result) |
| 468 // [else] |
| 469 // !%_IsJSReceiver(result = iterator.next()) && |
| 470 // %ThrowIteratorResultNotAnObject(result) |
| 471 // [endif] |
467 Expression* BuildIteratorNextResult(Expression* iterator, Variable* result, | 472 Expression* BuildIteratorNextResult(Expression* iterator, Variable* result, |
468 int pos); | 473 IteratorType type, int pos); |
469 | 474 |
470 // Initialize the components of a for-in / for-of statement. | 475 // Initialize the components of a for-in / for-of statement. |
471 Statement* InitializeForEachStatement(ForEachStatement* stmt, | 476 Statement* InitializeForEachStatement(ForEachStatement* stmt, |
472 Expression* each, Expression* subject, | 477 Expression* each, Expression* subject, |
473 Statement* body, int each_keyword_pos); | 478 Statement* body, int each_keyword_pos); |
474 Statement* InitializeForOfStatement(ForOfStatement* stmt, Expression* each, | 479 Statement* InitializeForOfStatement(ForOfStatement* stmt, Expression* each, |
475 Expression* iterable, Statement* body, | 480 Expression* iterable, Statement* body, |
476 bool finalize, | 481 bool finalize, IteratorType type, |
477 int next_result_pos = kNoSourcePosition); | 482 int next_result_pos = kNoSourcePosition); |
| 483 |
478 Block* RewriteForVarInLegacy(const ForInfo& for_info); | 484 Block* RewriteForVarInLegacy(const ForInfo& for_info); |
479 void DesugarBindingInForEachStatement(ForInfo* for_info, Block** body_block, | 485 void DesugarBindingInForEachStatement(ForInfo* for_info, Block** body_block, |
480 Expression** each_variable, bool* ok); | 486 Expression** each_variable, bool* ok); |
481 Block* CreateForEachStatementTDZ(Block* init_block, const ForInfo& for_info, | 487 Block* CreateForEachStatementTDZ(Block* init_block, const ForInfo& for_info, |
482 bool* ok); | 488 bool* ok); |
483 | 489 |
484 Statement* DesugarLexicalBindingsInForStatement( | 490 Statement* DesugarLexicalBindingsInForStatement( |
485 ForStatement* loop, Statement* init, Expression* cond, Statement* next, | 491 ForStatement* loop, Statement* init, Expression* cond, Statement* next, |
486 Statement* body, Scope* inner_scope, const ForInfo& for_info, bool* ok); | 492 Statement* body, Scope* inner_scope, const ForInfo& for_info, bool* ok); |
487 | 493 |
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639 Expression* BuildRejectPromise(Expression* value, int pos); | 645 Expression* BuildRejectPromise(Expression* value, int pos); |
640 Variable* PromiseVariable(); | 646 Variable* PromiseVariable(); |
641 | 647 |
642 // Generic AST generator for throwing errors from compiled code. | 648 // Generic AST generator for throwing errors from compiled code. |
643 Expression* NewThrowError(Runtime::FunctionId function_id, | 649 Expression* NewThrowError(Runtime::FunctionId function_id, |
644 MessageTemplate::Template message, | 650 MessageTemplate::Template message, |
645 const AstRawString* arg, int pos); | 651 const AstRawString* arg, int pos); |
646 | 652 |
647 void FinalizeIteratorUse(Scope* use_scope, Variable* completion, | 653 void FinalizeIteratorUse(Scope* use_scope, Variable* completion, |
648 Expression* condition, Variable* iter, | 654 Expression* condition, Variable* iter, |
649 Block* iterator_use, Block* result); | 655 Block* iterator_use, Block* result, |
| 656 IteratorType type); |
650 | 657 |
651 Statement* FinalizeForOfStatement(ForOfStatement* loop, Variable* completion, | 658 Statement* FinalizeForOfStatement(ForOfStatement* loop, Variable* completion, |
652 int pos); | 659 IteratorType type, int pos); |
653 void BuildIteratorClose(ZoneList<Statement*>* statements, Variable* iterator, | 660 void BuildIteratorClose(ZoneList<Statement*>* statements, Variable* iterator, |
654 Variable* input, Variable* output); | 661 Variable* input, Variable* output); |
655 void BuildIteratorCloseForCompletion(Scope* scope, | 662 void BuildIteratorCloseForCompletion(Scope* scope, |
656 ZoneList<Statement*>* statements, | 663 ZoneList<Statement*>* statements, |
657 Variable* iterator, | 664 Variable* iterator, |
658 Expression* completion); | 665 Expression* completion, |
| 666 IteratorType type); |
659 Statement* CheckCallable(Variable* var, Expression* error, int pos); | 667 Statement* CheckCallable(Variable* var, Expression* error, int pos); |
660 | 668 |
661 V8_INLINE Expression* RewriteAwaitExpression(Expression* value, int pos); | 669 V8_INLINE Expression* RewriteAwaitExpression(Expression* value, int pos); |
662 V8_INLINE void PrepareAsyncFunctionBody(ZoneList<Statement*>* body, | 670 V8_INLINE void PrepareAsyncFunctionBody(ZoneList<Statement*>* body, |
663 FunctionKind kind, int pos); | 671 FunctionKind kind, int pos); |
664 V8_INLINE void RewriteAsyncFunctionBody(ZoneList<Statement*>* body, | 672 V8_INLINE void RewriteAsyncFunctionBody(ZoneList<Statement*>* body, |
665 Block* block, | 673 Block* block, |
666 Expression* return_value, bool* ok); | 674 Expression* return_value, bool* ok); |
667 | 675 |
668 Expression* RewriteYieldStar(Expression* generator, Expression* expression, | 676 Expression* RewriteYieldStar(Expression* generator, Expression* expression, |
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1183 | 1191 |
1184 private: | 1192 private: |
1185 ParserTarget** variable_; | 1193 ParserTarget** variable_; |
1186 ParserTarget* previous_; | 1194 ParserTarget* previous_; |
1187 }; | 1195 }; |
1188 | 1196 |
1189 } // namespace internal | 1197 } // namespace internal |
1190 } // namespace v8 | 1198 } // namespace v8 |
1191 | 1199 |
1192 #endif // V8_PARSING_PARSER_H_ | 1200 #endif // V8_PARSING_PARSER_H_ |
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