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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/parsing/parser-base.h" | 10 #include "src/parsing/parser-base.h" |
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| 260 const AstRawString* local_name; | 260 const AstRawString* local_name; |
| 261 const Scanner::Location location; | 261 const Scanner::Location location; |
| 262 NamedImport(const AstRawString* import_name, const AstRawString* local_name, | 262 NamedImport(const AstRawString* import_name, const AstRawString* local_name, |
| 263 Scanner::Location location) | 263 Scanner::Location location) |
| 264 : import_name(import_name), | 264 : import_name(import_name), |
| 265 local_name(local_name), | 265 local_name(local_name), |
| 266 location(location) {} | 266 location(location) {} |
| 267 }; | 267 }; |
| 268 ZoneList<const NamedImport*>* ParseNamedImports(int pos, bool* ok); | 268 ZoneList<const NamedImport*>* ParseNamedImports(int pos, bool* ok); |
| 269 Statement* ParseFunctionDeclaration(bool* ok); | 269 Statement* ParseFunctionDeclaration(bool* ok); |
| 270 Statement* ParseHoistableDeclaration(ZoneList<const AstRawString*>* names, | |
| 271 bool default_export, bool* ok); | |
| 272 Statement* ParseHoistableDeclaration(int pos, ParseFunctionFlags flags, | |
| 273 ZoneList<const AstRawString*>* names, | |
| 274 bool default_export, bool* ok); | |
| 275 Statement* ParseAsyncFunctionDeclaration(ZoneList<const AstRawString*>* names, | 270 Statement* ParseAsyncFunctionDeclaration(ZoneList<const AstRawString*>* names, |
| 276 bool default_export, bool* ok); | 271 bool default_export, bool* ok); |
| 277 Expression* ParseAsyncFunctionExpression(bool* ok); | 272 Expression* ParseAsyncFunctionExpression(bool* ok); |
| 278 Statement* ParseClassDeclaration(ZoneList<const AstRawString*>* names, | 273 Statement* ParseClassDeclaration(ZoneList<const AstRawString*>* names, |
| 279 bool default_export, bool* ok); | 274 bool default_export, bool* ok); |
| 280 Statement* ParseNativeDeclaration(bool* ok); | 275 Statement* ParseNativeDeclaration(bool* ok); |
| 281 Block* BuildInitializationBlock(DeclarationParsingResult* parsing_result, | 276 Block* BuildInitializationBlock(DeclarationParsingResult* parsing_result, |
| 282 ZoneList<const AstRawString*>* names, | 277 ZoneList<const AstRawString*>* names, |
| 283 bool* ok); | 278 bool* ok); |
| 284 void DeclareAndInitializeVariables( | 279 void DeclareAndInitializeVariables( |
| 285 Block* block, const DeclarationDescriptor* declaration_descriptor, | 280 Block* block, const DeclarationDescriptor* declaration_descriptor, |
| 286 const DeclarationParsingResult::Declaration* declaration, | 281 const DeclarationParsingResult::Declaration* declaration, |
| 287 ZoneList<const AstRawString*>* names, bool* ok); | 282 ZoneList<const AstRawString*>* names, bool* ok); |
| 288 | 283 |
| 284 Statement* DeclareFunction(const AstRawString* variable_name, |
| 285 FunctionLiteral* function, int pos, |
| 286 bool is_generator, bool is_async, |
| 287 ZoneList<const AstRawString*>* names, bool* ok); |
| 288 |
| 289 DoExpression* ParseDoExpression(bool* ok); | 289 DoExpression* ParseDoExpression(bool* ok); |
| 290 Expression* ParseYieldStarExpression(bool* ok); | 290 Expression* ParseYieldStarExpression(bool* ok); |
| 291 | 291 |
| 292 class PatternRewriter final : public AstVisitor<PatternRewriter> { | 292 class PatternRewriter final : public AstVisitor<PatternRewriter> { |
| 293 public: | 293 public: |
| 294 static void DeclareAndInitializeVariables( | 294 static void DeclareAndInitializeVariables( |
| 295 Parser* parser, Block* block, | 295 Parser* parser, Block* block, |
| 296 const DeclarationDescriptor* declaration_descriptor, | 296 const DeclarationDescriptor* declaration_descriptor, |
| 297 const DeclarationParsingResult::Declaration* declaration, | 297 const DeclarationParsingResult::Declaration* declaration, |
| 298 ZoneList<const AstRawString*>* names, bool* ok); | 298 ZoneList<const AstRawString*>* names, bool* ok); |
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| 692 if (e_stat == nullptr) return false; | 692 if (e_stat == nullptr) return false; |
| 693 Literal* literal = e_stat->expression()->AsLiteral(); | 693 Literal* literal = e_stat->expression()->AsLiteral(); |
| 694 if (literal == nullptr || !literal->raw_value()->IsString()) return false; | 694 if (literal == nullptr || !literal->raw_value()->IsString()) return false; |
| 695 return arg == nullptr || literal->raw_value()->AsString() == arg; | 695 return arg == nullptr || literal->raw_value()->AsString() == arg; |
| 696 } | 696 } |
| 697 | 697 |
| 698 V8_INLINE static Expression* GetPropertyValue(LiteralProperty* property) { | 698 V8_INLINE static Expression* GetPropertyValue(LiteralProperty* property) { |
| 699 return property->value(); | 699 return property->value(); |
| 700 } | 700 } |
| 701 | 701 |
| 702 V8_INLINE void GetDefaultStrings( |
| 703 const AstRawString** default_string, |
| 704 const AstRawString** star_default_star_string) { |
| 705 *default_string = ast_value_factory()->default_string(); |
| 706 *star_default_star_string = ast_value_factory()->star_default_star_string(); |
| 707 } |
| 708 |
| 702 // Functions for encapsulating the differences between parsing and preparsing; | 709 // Functions for encapsulating the differences between parsing and preparsing; |
| 703 // operations interleaved with the recursive descent. | 710 // operations interleaved with the recursive descent. |
| 704 V8_INLINE void PushLiteralName(const AstRawString* id) { | 711 V8_INLINE void PushLiteralName(const AstRawString* id) { |
| 705 DCHECK_NOT_NULL(fni_); | 712 DCHECK_NOT_NULL(fni_); |
| 706 fni_->PushLiteralName(id); | 713 fni_->PushLiteralName(id); |
| 707 } | 714 } |
| 708 | 715 |
| 709 V8_INLINE void PushVariableName(const AstRawString* id) { | 716 V8_INLINE void PushVariableName(const AstRawString* id) { |
| 710 DCHECK_NOT_NULL(fni_); | 717 DCHECK_NOT_NULL(fni_); |
| 711 fni_->PushVariableName(id); | 718 fni_->PushVariableName(id); |
| 712 } | 719 } |
| 713 | 720 |
| 714 V8_INLINE void PushPropertyName(Expression* expression) { | 721 V8_INLINE void PushPropertyName(Expression* expression) { |
| 715 DCHECK_NOT_NULL(fni_); | 722 DCHECK_NOT_NULL(fni_); |
| 716 if (expression->IsPropertyName()) { | 723 if (expression->IsPropertyName()) { |
| 717 fni_->PushLiteralName(expression->AsLiteral()->AsRawPropertyName()); | 724 fni_->PushLiteralName(expression->AsLiteral()->AsRawPropertyName()); |
| 718 } else { | 725 } else { |
| 719 fni_->PushLiteralName(ast_value_factory()->anonymous_function_string()); | 726 fni_->PushLiteralName(ast_value_factory()->anonymous_function_string()); |
| 720 } | 727 } |
| 721 } | 728 } |
| 722 | 729 |
| 730 V8_INLINE void PushEnclosingName(const AstRawString* name) { |
| 731 DCHECK_NOT_NULL(fni_); |
| 732 fni_->PushEnclosingName(name); |
| 733 } |
| 734 |
| 723 V8_INLINE void InferFunctionName(FunctionLiteral* func_to_infer) { | 735 V8_INLINE void InferFunctionName(FunctionLiteral* func_to_infer) { |
| 724 fni_->AddFunction(func_to_infer); | 736 fni_->AddFunction(func_to_infer); |
| 725 } | 737 } |
| 726 | 738 |
| 727 // If we assign a function literal to a property we pretenure the | 739 // If we assign a function literal to a property we pretenure the |
| 728 // literal so it can be added as a constant function property. | 740 // literal so it can be added as a constant function property. |
| 729 V8_INLINE static void CheckAssigningFunctionLiteralToProperty( | 741 V8_INLINE static void CheckAssigningFunctionLiteralToProperty( |
| 730 Expression* left, Expression* right) { | 742 Expression* left, Expression* right) { |
| 731 DCHECK(left != NULL); | 743 DCHECK(left != NULL); |
| 732 if (left->IsProperty() && right->IsFunctionLiteral()) { | 744 if (left->IsProperty() && right->IsFunctionLiteral()) { |
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| 1049 | 1061 |
| 1050 #ifdef DEBUG | 1062 #ifdef DEBUG |
| 1051 void Print(AstNode* node); | 1063 void Print(AstNode* node); |
| 1052 #endif // DEBUG | 1064 #endif // DEBUG |
| 1053 }; | 1065 }; |
| 1054 | 1066 |
| 1055 } // namespace internal | 1067 } // namespace internal |
| 1056 } // namespace v8 | 1068 } // namespace v8 |
| 1057 | 1069 |
| 1058 #endif // V8_PARSING_PARSER_H_ | 1070 #endif // V8_PARSING_PARSER_H_ |
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