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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_BASE_H | 5 #ifndef V8_PARSING_PARSER_BASE_H |
6 #define V8_PARSING_PARSER_BASE_H | 6 #define V8_PARSING_PARSER_BASE_H |
7 | 7 |
8 #include "src/ast/scopes.h" | 8 #include "src/ast/scopes.h" |
9 #include "src/bailout-reason.h" | 9 #include "src/bailout-reason.h" |
10 #include "src/hashmap.h" | 10 #include "src/hashmap.h" |
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3236 | 3236 |
3237 template <class Traits> | 3237 template <class Traits> |
3238 bool ParserBase<Traits>::IsNextLetKeyword() { | 3238 bool ParserBase<Traits>::IsNextLetKeyword() { |
3239 DCHECK(peek() == Token::LET); | 3239 DCHECK(peek() == Token::LET); |
3240 Token::Value next_next = PeekAhead(); | 3240 Token::Value next_next = PeekAhead(); |
3241 switch (next_next) { | 3241 switch (next_next) { |
3242 case Token::LBRACE: | 3242 case Token::LBRACE: |
3243 case Token::LBRACK: | 3243 case Token::LBRACK: |
3244 case Token::IDENTIFIER: | 3244 case Token::IDENTIFIER: |
3245 case Token::STATIC: | 3245 case Token::STATIC: |
3246 case Token::LET: // Yes, you can do let let = ... in sloppy mode | 3246 case Token::LET: // `let let;` is disallowed by static semantics, but the |
| 3247 // token must be first interpreted as a keyword in order |
| 3248 // for those semantics to apply. This ensures that ASI is |
| 3249 // not honored when a LineTerminator separates the |
| 3250 // tokens. |
3247 case Token::YIELD: | 3251 case Token::YIELD: |
3248 case Token::AWAIT: | 3252 case Token::AWAIT: |
3249 case Token::ASYNC: | 3253 case Token::ASYNC: |
3250 return true; | 3254 return true; |
| 3255 case Token::FUTURE_STRICT_RESERVED_WORD: |
| 3256 return is_sloppy(language_mode()); |
3251 default: | 3257 default: |
3252 return false; | 3258 return false; |
3253 } | 3259 } |
3254 } | 3260 } |
3255 | 3261 |
3256 template <class Traits> | 3262 template <class Traits> |
3257 typename ParserBase<Traits>::ExpressionT | 3263 typename ParserBase<Traits>::ExpressionT |
3258 ParserBase<Traits>::ParseArrowFunctionLiteral( | 3264 ParserBase<Traits>::ParseArrowFunctionLiteral( |
3259 bool accept_IN, const FormalParametersT& formal_parameters, bool is_async, | 3265 bool accept_IN, const FormalParametersT& formal_parameters, bool is_async, |
3260 const ExpressionClassifier& formals_classifier, bool* ok) { | 3266 const ExpressionClassifier& formals_classifier, bool* ok) { |
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3587 has_seen_constructor_ = true; | 3593 has_seen_constructor_ = true; |
3588 return; | 3594 return; |
3589 } | 3595 } |
3590 } | 3596 } |
3591 | 3597 |
3592 | 3598 |
3593 } // namespace internal | 3599 } // namespace internal |
3594 } // namespace v8 | 3600 } // namespace v8 |
3595 | 3601 |
3596 #endif // V8_PARSING_PARSER_BASE_H | 3602 #endif // V8_PARSING_PARSER_BASE_H |
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