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1 // Copyright 2011 the V8 project authors. All rights reserved. | 1 // Copyright 2011 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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502 // Returns the location of the last seen octal literal | 502 // Returns the location of the last seen octal literal |
503 Location octal_position() const { return octal_pos_; } | 503 Location octal_position() const { return octal_pos_; } |
504 void clear_octal_position() { octal_pos_ = Location::invalid(); } | 504 void clear_octal_position() { octal_pos_ = Location::invalid(); } |
505 | 505 |
506 // Seek forward to the given position. This operation does not | 506 // Seek forward to the given position. This operation does not |
507 // work in general, for instance when there are pushed back | 507 // work in general, for instance when there are pushed back |
508 // characters, but works for seeking forward until simple delimiter | 508 // characters, but works for seeking forward until simple delimiter |
509 // tokens, which is what it is used for. | 509 // tokens, which is what it is used for. |
510 void SeekForward(int pos); | 510 void SeekForward(int pos); |
511 | 511 |
512 bool HarmonyBlockScoping() const { | 512 bool HarmonyScoping() const { |
513 return harmony_block_scoping_; | 513 return harmony_scoping_; |
514 } | 514 } |
515 void SetHarmonyBlockScoping(bool block_scoping) { | 515 void SetHarmonyScoping(bool block_scoping) { |
516 harmony_block_scoping_ = block_scoping; | 516 harmony_scoping_ = block_scoping; |
517 } | 517 } |
518 | 518 |
519 | 519 |
520 protected: | 520 protected: |
521 bool SkipWhiteSpace(); | 521 bool SkipWhiteSpace(); |
522 Token::Value SkipSingleLineComment(); | 522 Token::Value SkipSingleLineComment(); |
523 Token::Value SkipMultiLineComment(); | 523 Token::Value SkipMultiLineComment(); |
524 | 524 |
525 // Scans a single JavaScript token. | 525 // Scans a single JavaScript token. |
526 void Scan(); | 526 void Scan(); |
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549 | 549 |
550 // Whether there is a line terminator whitespace character after | 550 // Whether there is a line terminator whitespace character after |
551 // the current token, and before the next. Does not count newlines | 551 // the current token, and before the next. Does not count newlines |
552 // inside multiline comments. | 552 // inside multiline comments. |
553 bool has_line_terminator_before_next_; | 553 bool has_line_terminator_before_next_; |
554 // Whether there is a multi-line comment that contains a | 554 // Whether there is a multi-line comment that contains a |
555 // line-terminator after the current token, and before the next. | 555 // line-terminator after the current token, and before the next. |
556 bool has_multiline_comment_before_next_; | 556 bool has_multiline_comment_before_next_; |
557 // Whether we scan 'let' as a keyword for harmony block scoped | 557 // Whether we scan 'let' as a keyword for harmony block scoped |
558 // let bindings. | 558 // let bindings. |
559 bool harmony_block_scoping_; | 559 bool harmony_scoping_; |
560 }; | 560 }; |
561 | 561 |
562 } } // namespace v8::internal | 562 } } // namespace v8::internal |
563 | 563 |
564 #endif // V8_SCANNER_H_ | 564 #endif // V8_SCANNER_H_ |
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