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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_PREPARSER_H | 5 #ifndef V8_PREPARSER_H |
6 #define V8_PREPARSER_H | 6 #define V8_PREPARSER_H |
7 | 7 |
8 #include "src/v8.h" | 8 #include "src/v8.h" |
9 | 9 |
10 #include "src/bailout-reason.h" | 10 #include "src/bailout-reason.h" |
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94 log_(log), | 94 log_(log), |
95 mode_(PARSE_EAGERLY), // Lazy mode must be set explicitly. | 95 mode_(PARSE_EAGERLY), // Lazy mode must be set explicitly. |
96 stack_limit_(stack_limit), | 96 stack_limit_(stack_limit), |
97 zone_(zone), | 97 zone_(zone), |
98 scanner_(scanner), | 98 scanner_(scanner), |
99 stack_overflow_(false), | 99 stack_overflow_(false), |
100 allow_lazy_(false), | 100 allow_lazy_(false), |
101 allow_natives_(false), | 101 allow_natives_(false), |
102 allow_harmony_arrow_functions_(false), | 102 allow_harmony_arrow_functions_(false), |
103 allow_harmony_sloppy_(false), | 103 allow_harmony_sloppy_(false), |
| 104 allow_harmony_sloppy_let_(false), |
104 allow_harmony_computed_property_names_(false), | 105 allow_harmony_computed_property_names_(false), |
105 allow_harmony_rest_params_(false), | 106 allow_harmony_rest_params_(false), |
106 allow_harmony_spreadcalls_(false), | 107 allow_harmony_spreadcalls_(false), |
107 allow_harmony_destructuring_(false), | 108 allow_harmony_destructuring_(false), |
108 allow_harmony_spread_arrays_(false), | 109 allow_harmony_spread_arrays_(false), |
109 allow_harmony_new_target_(false), | 110 allow_harmony_new_target_(false), |
110 allow_strong_mode_(false), | 111 allow_strong_mode_(false), |
111 allow_legacy_const_(true) {} | 112 allow_legacy_const_(true) {} |
112 | 113 |
113 #define ALLOW_ACCESSORS(name) \ | 114 #define ALLOW_ACCESSORS(name) \ |
114 bool allow_##name() const { return allow_##name##_; } \ | 115 bool allow_##name() const { return allow_##name##_; } \ |
115 void set_allow_##name(bool allow) { allow_##name##_ = allow; } | 116 void set_allow_##name(bool allow) { allow_##name##_ = allow; } |
116 | 117 |
117 ALLOW_ACCESSORS(lazy); | 118 ALLOW_ACCESSORS(lazy); |
118 ALLOW_ACCESSORS(natives); | 119 ALLOW_ACCESSORS(natives); |
119 ALLOW_ACCESSORS(harmony_arrow_functions); | 120 ALLOW_ACCESSORS(harmony_arrow_functions); |
120 ALLOW_ACCESSORS(harmony_sloppy); | 121 ALLOW_ACCESSORS(harmony_sloppy); |
| 122 ALLOW_ACCESSORS(harmony_sloppy_let); |
121 ALLOW_ACCESSORS(harmony_computed_property_names); | 123 ALLOW_ACCESSORS(harmony_computed_property_names); |
122 ALLOW_ACCESSORS(harmony_rest_params); | 124 ALLOW_ACCESSORS(harmony_rest_params); |
123 ALLOW_ACCESSORS(harmony_spreadcalls); | 125 ALLOW_ACCESSORS(harmony_spreadcalls); |
124 ALLOW_ACCESSORS(harmony_destructuring); | 126 ALLOW_ACCESSORS(harmony_destructuring); |
125 ALLOW_ACCESSORS(harmony_spread_arrays); | 127 ALLOW_ACCESSORS(harmony_spread_arrays); |
126 ALLOW_ACCESSORS(harmony_new_target); | 128 ALLOW_ACCESSORS(harmony_new_target); |
127 ALLOW_ACCESSORS(strong_mode); | 129 ALLOW_ACCESSORS(strong_mode); |
128 ALLOW_ACCESSORS(legacy_const); | 130 ALLOW_ACCESSORS(legacy_const); |
129 #undef ALLOW_ACCESSORS | 131 #undef ALLOW_ACCESSORS |
130 | 132 |
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497 | 499 |
498 LanguageMode language_mode() { return scope_->language_mode(); } | 500 LanguageMode language_mode() { return scope_->language_mode(); } |
499 bool is_generator() const { return function_state_->is_generator(); } | 501 bool is_generator() const { return function_state_->is_generator(); } |
500 | 502 |
501 bool allow_const() { | 503 bool allow_const() { |
502 return is_strict(language_mode()) || allow_harmony_sloppy() || | 504 return is_strict(language_mode()) || allow_harmony_sloppy() || |
503 allow_legacy_const(); | 505 allow_legacy_const(); |
504 } | 506 } |
505 | 507 |
506 bool allow_let() { | 508 bool allow_let() { |
507 return is_strict(language_mode()) || allow_harmony_sloppy(); | 509 return is_strict(language_mode()) || allow_harmony_sloppy_let(); |
508 } | 510 } |
509 | 511 |
510 // Report syntax errors. | 512 // Report syntax errors. |
511 void ReportMessage(MessageTemplate::Template message, const char* arg = NULL, | 513 void ReportMessage(MessageTemplate::Template message, const char* arg = NULL, |
512 ParseErrorType error_type = kSyntaxError) { | 514 ParseErrorType error_type = kSyntaxError) { |
513 Scanner::Location source_location = scanner()->location(); | 515 Scanner::Location source_location = scanner()->location(); |
514 Traits::ReportMessageAt(source_location, message, arg, error_type); | 516 Traits::ReportMessageAt(source_location, message, arg, error_type); |
515 } | 517 } |
516 | 518 |
517 void ReportMessageAt(Scanner::Location location, | 519 void ReportMessageAt(Scanner::Location location, |
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790 private: | 792 private: |
791 Zone* zone_; | 793 Zone* zone_; |
792 | 794 |
793 Scanner* scanner_; | 795 Scanner* scanner_; |
794 bool stack_overflow_; | 796 bool stack_overflow_; |
795 | 797 |
796 bool allow_lazy_; | 798 bool allow_lazy_; |
797 bool allow_natives_; | 799 bool allow_natives_; |
798 bool allow_harmony_arrow_functions_; | 800 bool allow_harmony_arrow_functions_; |
799 bool allow_harmony_sloppy_; | 801 bool allow_harmony_sloppy_; |
| 802 bool allow_harmony_sloppy_let_; |
800 bool allow_harmony_computed_property_names_; | 803 bool allow_harmony_computed_property_names_; |
801 bool allow_harmony_rest_params_; | 804 bool allow_harmony_rest_params_; |
802 bool allow_harmony_spreadcalls_; | 805 bool allow_harmony_spreadcalls_; |
803 bool allow_harmony_destructuring_; | 806 bool allow_harmony_destructuring_; |
804 bool allow_harmony_spread_arrays_; | 807 bool allow_harmony_spread_arrays_; |
805 bool allow_harmony_new_target_; | 808 bool allow_harmony_new_target_; |
806 bool allow_strong_mode_; | 809 bool allow_strong_mode_; |
807 bool allow_legacy_const_; | 810 bool allow_legacy_const_; |
808 }; | 811 }; |
809 | 812 |
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4010 *ok = false; | 4013 *ok = false; |
4011 return; | 4014 return; |
4012 } | 4015 } |
4013 has_seen_constructor_ = true; | 4016 has_seen_constructor_ = true; |
4014 return; | 4017 return; |
4015 } | 4018 } |
4016 } | 4019 } |
4017 } } // v8::internal | 4020 } } // v8::internal |
4018 | 4021 |
4019 #endif // V8_PREPARSER_H | 4022 #endif // V8_PREPARSER_H |
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