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| 1 // Copyright 2015 the V8 project authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. |
| 4 |
| 5 #ifndef V8_UNICODE_CACHE_H_ |
| 6 #define V8_UNICODE_CACHE_H_ |
| 7 |
| 8 #include "src/base/macros.h" |
| 9 #include "src/char-predicates.h" |
| 10 #include "src/unicode.h" |
| 11 #include "src/unicode-decoder.h" |
| 12 |
| 13 namespace v8 { |
| 14 namespace internal { |
| 15 |
| 16 // Caching predicates used by scanners. |
| 17 class UnicodeCache { |
| 18 public: |
| 19 UnicodeCache() {} |
| 20 typedef unibrow::Utf8Decoder<512> Utf8Decoder; |
| 21 |
| 22 StaticResource<Utf8Decoder>* utf8_decoder() { return &utf8_decoder_; } |
| 23 |
| 24 inline bool IsIdentifierStart(unibrow::uchar c); |
| 25 inline bool IsIdentifierPart(unibrow::uchar c); |
| 26 inline bool IsLineTerminator(unibrow::uchar c); |
| 27 inline bool IsLineTerminatorSequence(unibrow::uchar c, unibrow::uchar next); |
| 28 |
| 29 inline bool IsWhiteSpace(unibrow::uchar c); |
| 30 inline bool IsWhiteSpaceOrLineTerminator(unibrow::uchar c); |
| 31 |
| 32 private: |
| 33 unibrow::Predicate<IdentifierStart, 128> kIsIdentifierStart; |
| 34 unibrow::Predicate<IdentifierPart, 128> kIsIdentifierPart; |
| 35 unibrow::Predicate<unibrow::LineTerminator, 128> kIsLineTerminator; |
| 36 unibrow::Predicate<WhiteSpace, 128> kIsWhiteSpace; |
| 37 unibrow::Predicate<WhiteSpaceOrLineTerminator, 128> |
| 38 kIsWhiteSpaceOrLineTerminator; |
| 39 StaticResource<Utf8Decoder> utf8_decoder_; |
| 40 |
| 41 DISALLOW_COPY_AND_ASSIGN(UnicodeCache); |
| 42 }; |
| 43 |
| 44 } // namespace internal |
| 45 } // namespace v8 |
| 46 |
| 47 #endif // V8_UNICODE_CACHE_H_ |
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