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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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| 165 | 165 |
| 166 | 166 |
| 167 class ParserApi { | 167 class ParserApi { |
| 168 public: | 168 public: |
| 169 // Parses the source code represented by the compilation info and sets its | 169 // Parses the source code represented by the compilation info and sets its |
| 170 // function literal. Returns false (and deallocates any allocated AST | 170 // function literal. Returns false (and deallocates any allocated AST |
| 171 // nodes) if parsing failed. | 171 // nodes) if parsing failed. |
| 172 static bool Parse(CompilationInfo* info, int flags); | 172 static bool Parse(CompilationInfo* info, int flags); |
| 173 | 173 |
| 174 // Generic preparser generating full preparse data. | 174 // Generic preparser generating full preparse data. |
| 175 static ScriptDataImpl* PreParse(UC16CharacterStream* source, | 175 static ScriptDataImpl* PreParse(Utf16CharacterStream* source, |
| 176 v8::Extension* extension, | 176 v8::Extension* extension, |
| 177 int flags); | 177 int flags); |
| 178 | 178 |
| 179 // Preparser that only does preprocessing that makes sense if only used | 179 // Preparser that only does preprocessing that makes sense if only used |
| 180 // immediately after. | 180 // immediately after. |
| 181 static ScriptDataImpl* PartialPreParse(Handle<String> source, | 181 static ScriptDataImpl* PartialPreParse(Handle<String> source, |
| 182 v8::Extension* extension, | 182 v8::Extension* extension, |
| 183 int flags); | 183 int flags); |
| 184 }; | 184 }; |
| 185 | 185 |
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| 535 FunctionState* outer_function_state_; | 535 FunctionState* outer_function_state_; |
| 536 Scope* outer_scope_; | 536 Scope* outer_scope_; |
| 537 int saved_ast_node_id_; | 537 int saved_ast_node_id_; |
| 538 AstNodeFactory<AstConstructionVisitor> factory_; | 538 AstNodeFactory<AstConstructionVisitor> factory_; |
| 539 }; | 539 }; |
| 540 | 540 |
| 541 | 541 |
| 542 | 542 |
| 543 | 543 |
| 544 FunctionLiteral* ParseLazy(CompilationInfo* info, | 544 FunctionLiteral* ParseLazy(CompilationInfo* info, |
| 545 UC16CharacterStream* source, | 545 Utf16CharacterStream* source, |
| 546 ZoneScope* zone_scope); | 546 ZoneScope* zone_scope); |
| 547 | 547 |
| 548 Isolate* isolate() { return isolate_; } | 548 Isolate* isolate() { return isolate_; } |
| 549 Zone* zone() { return isolate_->zone(); } | 549 Zone* zone() { return isolate_->zone(); } |
| 550 | 550 |
| 551 // Called by ParseProgram after setting up the scanner. | 551 // Called by ParseProgram after setting up the scanner. |
| 552 FunctionLiteral* DoParseProgram(CompilationInfo* info, | 552 FunctionLiteral* DoParseProgram(CompilationInfo* info, |
| 553 Handle<String> source, | 553 Handle<String> source, |
| 554 ZoneScope* zone_scope); | 554 ZoneScope* zone_scope); |
| 555 | 555 |
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| 704 bool Check(Token::Value token); | 704 bool Check(Token::Value token); |
| 705 void ExpectSemicolon(bool* ok); | 705 void ExpectSemicolon(bool* ok); |
| 706 void ExpectContextualKeyword(const char* keyword, bool* ok); | 706 void ExpectContextualKeyword(const char* keyword, bool* ok); |
| 707 | 707 |
| 708 Handle<String> LiteralString(PretenureFlag tenured) { | 708 Handle<String> LiteralString(PretenureFlag tenured) { |
| 709 if (scanner().is_literal_ascii()) { | 709 if (scanner().is_literal_ascii()) { |
| 710 return isolate_->factory()->NewStringFromAscii( | 710 return isolate_->factory()->NewStringFromAscii( |
| 711 scanner().literal_ascii_string(), tenured); | 711 scanner().literal_ascii_string(), tenured); |
| 712 } else { | 712 } else { |
| 713 return isolate_->factory()->NewStringFromTwoByte( | 713 return isolate_->factory()->NewStringFromTwoByte( |
| 714 scanner().literal_uc16_string(), tenured); | 714 scanner().literal_utf16_string(), tenured); |
| 715 } | 715 } |
| 716 } | 716 } |
| 717 | 717 |
| 718 Handle<String> NextLiteralString(PretenureFlag tenured) { | 718 Handle<String> NextLiteralString(PretenureFlag tenured) { |
| 719 if (scanner().is_next_literal_ascii()) { | 719 if (scanner().is_next_literal_ascii()) { |
| 720 return isolate_->factory()->NewStringFromAscii( | 720 return isolate_->factory()->NewStringFromAscii( |
| 721 scanner().next_literal_ascii_string(), tenured); | 721 scanner().next_literal_ascii_string(), tenured); |
| 722 } else { | 722 } else { |
| 723 return isolate_->factory()->NewStringFromTwoByte( | 723 return isolate_->factory()->NewStringFromTwoByte( |
| 724 scanner().next_literal_uc16_string(), tenured); | 724 scanner().next_literal_utf16_string(), tenured); |
| 725 } | 725 } |
| 726 } | 726 } |
| 727 | 727 |
| 728 Handle<String> GetSymbol(bool* ok); | 728 Handle<String> GetSymbol(bool* ok); |
| 729 | 729 |
| 730 // Get odd-ball literals. | 730 // Get odd-ball literals. |
| 731 Literal* GetLiteralUndefined(); | 731 Literal* GetLiteralUndefined(); |
| 732 Literal* GetLiteralTheHole(); | 732 Literal* GetLiteralTheHole(); |
| 733 | 733 |
| 734 Handle<String> ParseIdentifier(bool* ok); | 734 Handle<String> ParseIdentifier(bool* ok); |
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| 862 private: | 862 private: |
| 863 static const int kTypeSlot = 0; | 863 static const int kTypeSlot = 0; |
| 864 static const int kElementsSlot = 1; | 864 static const int kElementsSlot = 1; |
| 865 | 865 |
| 866 DISALLOW_IMPLICIT_CONSTRUCTORS(CompileTimeValue); | 866 DISALLOW_IMPLICIT_CONSTRUCTORS(CompileTimeValue); |
| 867 }; | 867 }; |
| 868 | 868 |
| 869 } } // namespace v8::internal | 869 } } // namespace v8::internal |
| 870 | 870 |
| 871 #endif // V8_PARSER_H_ | 871 #endif // V8_PARSER_H_ |
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