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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 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
| 3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
| 4 // met: | 4 // met: |
| 5 // | 5 // |
| 6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
| 7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
| 8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
| 9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
| 10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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| 468 | 468 |
| 469 static bool IsArrayIndex(Handle<String> string, uint32_t* index) { | 469 static bool IsArrayIndex(Handle<String> string, uint32_t* index) { |
| 470 return !string.is_null() && string->AsArrayIndex(index); | 470 return !string.is_null() && string->AsArrayIndex(index); |
| 471 } | 471 } |
| 472 | 472 |
| 473 // Functions for encapsulating the differences between parsing and preparsing; | 473 // Functions for encapsulating the differences between parsing and preparsing; |
| 474 // operations interleaved with the recursive descent. | 474 // operations interleaved with the recursive descent. |
| 475 static void PushLiteralName(FuncNameInferrer* fni, Handle<String> id) { | 475 static void PushLiteralName(FuncNameInferrer* fni, Handle<String> id) { |
| 476 fni->PushLiteralName(id); | 476 fni->PushLiteralName(id); |
| 477 } | 477 } |
| 478 void MaybePushPropertyName(FuncNameInferrer* fni, Expression* expression); | |
|
Michael Starzinger
2014/03/21 10:09:59
nit: Can we call this PushPropertyOrLiteralName, b
marja
2014/03/21 10:28:24
-> PushPropertyName as discussed offline
| |
| 478 | 479 |
| 479 static void CheckFunctionLiteralInsideTopLevelObjectLiteral( | 480 static void CheckFunctionLiteralInsideTopLevelObjectLiteral( |
| 480 Scope* scope, Expression* value, bool* has_function) { | 481 Scope* scope, Expression* value, bool* has_function) { |
| 481 if (scope->DeclarationScope()->is_global_scope() && | 482 if (scope->DeclarationScope()->is_global_scope() && |
| 482 value->AsFunctionLiteral() != NULL) { | 483 value->AsFunctionLiteral() != NULL) { |
| 483 *has_function = true; | 484 *has_function = true; |
| 484 value->AsFunctionLiteral()->set_pretenure(); | 485 value->AsFunctionLiteral()->set_pretenure(); |
| 485 } | 486 } |
| 486 } | 487 } |
| 487 | 488 |
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| 540 // "null" return type creators. | 541 // "null" return type creators. |
| 541 static Handle<String> EmptyIdentifier() { | 542 static Handle<String> EmptyIdentifier() { |
| 542 return Handle<String>(); | 543 return Handle<String>(); |
| 543 } | 544 } |
| 544 static Expression* EmptyExpression() { | 545 static Expression* EmptyExpression() { |
| 545 return NULL; | 546 return NULL; |
| 546 } | 547 } |
| 547 static Literal* EmptyLiteral() { | 548 static Literal* EmptyLiteral() { |
| 548 return NULL; | 549 return NULL; |
| 549 } | 550 } |
| 551 // Used in error return values. | |
| 550 static ZoneList<Expression*>* NullExpressionList() { | 552 static ZoneList<Expression*>* NullExpressionList() { |
| 551 return NULL; | 553 return NULL; |
| 552 } | 554 } |
| 553 | 555 |
| 554 // Odd-ball literal creators. | 556 // Odd-ball literal creators. |
| 555 Literal* GetLiteralTheHole(int position, | 557 Literal* GetLiteralTheHole(int position, |
| 556 AstNodeFactory<AstConstructionVisitor>* factory); | 558 AstNodeFactory<AstConstructionVisitor>* factory); |
| 557 | 559 |
| 558 // Producing data during the recursive descent. | 560 // Producing data during the recursive descent. |
| 559 Handle<String> GetSymbol(Scanner* scanner = NULL); | 561 Handle<String> GetSymbol(Scanner* scanner = NULL); |
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| 580 // Temporary glue; these functions will move to ParserBase. | 582 // Temporary glue; these functions will move to ParserBase. |
| 581 Expression* ParseV8Intrinsic(bool* ok); | 583 Expression* ParseV8Intrinsic(bool* ok); |
| 582 FunctionLiteral* ParseFunctionLiteral( | 584 FunctionLiteral* ParseFunctionLiteral( |
| 583 Handle<String> name, | 585 Handle<String> name, |
| 584 Scanner::Location function_name_location, | 586 Scanner::Location function_name_location, |
| 585 bool name_is_strict_reserved, | 587 bool name_is_strict_reserved, |
| 586 bool is_generator, | 588 bool is_generator, |
| 587 int function_token_position, | 589 int function_token_position, |
| 588 FunctionLiteral::FunctionType type, | 590 FunctionLiteral::FunctionType type, |
| 589 bool* ok); | 591 bool* ok); |
| 590 Expression* ParseMemberWithNewPrefixesExpression(bool* ok); | |
| 591 | 592 |
| 592 private: | 593 private: |
| 593 Parser* parser_; | 594 Parser* parser_; |
| 594 }; | 595 }; |
| 595 | 596 |
| 596 | 597 |
| 597 class Parser : public ParserBase<ParserTraits> { | 598 class Parser : public ParserBase<ParserTraits> { |
| 598 public: | 599 public: |
| 599 explicit Parser(CompilationInfo* info); | 600 explicit Parser(CompilationInfo* info); |
| 600 ~Parser() { | 601 ~Parser() { |
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| 716 WhileStatement* ParseWhileStatement(ZoneStringList* labels, bool* ok); | 717 WhileStatement* ParseWhileStatement(ZoneStringList* labels, bool* ok); |
| 717 Statement* ParseForStatement(ZoneStringList* labels, bool* ok); | 718 Statement* ParseForStatement(ZoneStringList* labels, bool* ok); |
| 718 Statement* ParseThrowStatement(bool* ok); | 719 Statement* ParseThrowStatement(bool* ok); |
| 719 Expression* MakeCatchContext(Handle<String> id, VariableProxy* value); | 720 Expression* MakeCatchContext(Handle<String> id, VariableProxy* value); |
| 720 TryStatement* ParseTryStatement(bool* ok); | 721 TryStatement* ParseTryStatement(bool* ok); |
| 721 DebuggerStatement* ParseDebuggerStatement(bool* ok); | 722 DebuggerStatement* ParseDebuggerStatement(bool* ok); |
| 722 | 723 |
| 723 // Support for hamony block scoped bindings. | 724 // Support for hamony block scoped bindings. |
| 724 Block* ParseScopedBlock(ZoneStringList* labels, bool* ok); | 725 Block* ParseScopedBlock(ZoneStringList* labels, bool* ok); |
| 725 | 726 |
| 726 Expression* ParseMemberWithNewPrefixesExpression(bool* ok); | |
| 727 Expression* ParseMemberExpression(bool* ok); | |
| 728 Expression* ParseMemberExpressionContinuation(Expression* expression, | |
| 729 bool* ok); | |
| 730 // Initialize the components of a for-in / for-of statement. | 727 // Initialize the components of a for-in / for-of statement. |
| 731 void InitializeForEachStatement(ForEachStatement* stmt, | 728 void InitializeForEachStatement(ForEachStatement* stmt, |
| 732 Expression* each, | 729 Expression* each, |
| 733 Expression* subject, | 730 Expression* subject, |
| 734 Statement* body); | 731 Statement* body); |
| 735 | 732 |
| 736 FunctionLiteral* ParseFunctionLiteral( | 733 FunctionLiteral* ParseFunctionLiteral( |
| 737 Handle<String> name, | 734 Handle<String> name, |
| 738 Scanner::Location function_name_location, | 735 Scanner::Location function_name_location, |
| 739 bool name_is_strict_reserved, | 736 bool name_is_strict_reserved, |
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| 840 private: | 837 private: |
| 841 static const int kLiteralTypeSlot = 0; | 838 static const int kLiteralTypeSlot = 0; |
| 842 static const int kElementsSlot = 1; | 839 static const int kElementsSlot = 1; |
| 843 | 840 |
| 844 DISALLOW_IMPLICIT_CONSTRUCTORS(CompileTimeValue); | 841 DISALLOW_IMPLICIT_CONSTRUCTORS(CompileTimeValue); |
| 845 }; | 842 }; |
| 846 | 843 |
| 847 } } // namespace v8::internal | 844 } } // namespace v8::internal |
| 848 | 845 |
| 849 #endif // V8_PARSER_H_ | 846 #endif // V8_PARSER_H_ |
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