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1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file |
2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
4 | 4 |
5 #ifndef SRC_VM_UNICODE_H_ | 5 #ifndef SRC_VM_UNICODE_H_ |
6 #define SRC_VM_UNICODE_H_ | 6 #define SRC_VM_UNICODE_H_ |
7 | 7 |
8 #include "src/shared/assert.h" | 8 #include "src/shared/assert.h" |
9 #include "src/shared/globals.h" | 9 #include "src/shared/globals.h" |
10 | 10 |
11 namespace fletch { | 11 namespace dartino { |
12 | 12 |
13 class TwoByteString; | 13 class TwoByteString; |
14 | 14 |
15 class CodePointIterator { | 15 class CodePointIterator { |
16 public: | 16 public: |
17 explicit CodePointIterator(TwoByteString* str); | 17 explicit CodePointIterator(TwoByteString* str); |
18 | 18 |
19 int32 Current() const { | 19 int32 Current() const { |
20 ASSERT(index_ >= 0); | 20 ASSERT(index_ >= 0); |
21 ASSERT(index_ < end_); | 21 ASSERT(index_ < end_); |
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134 static void Encode(int32 codepoint, uint16_t* dst); | 134 static void Encode(int32 codepoint, uint16_t* dst); |
135 | 135 |
136 static const int32 kMaxCodeUnit = 0xFFFF; | 136 static const int32 kMaxCodeUnit = 0xFFFF; |
137 | 137 |
138 private: | 138 private: |
139 static const int32 kLeadSurrogateOffset = (0xD800 - (0x10000 >> 10)); | 139 static const int32 kLeadSurrogateOffset = (0xD800 - (0x10000 >> 10)); |
140 | 140 |
141 static const int32 kSurrogateOffset = (0x10000 - (0xD800 << 10) - 0xDC00); | 141 static const int32 kSurrogateOffset = (0x10000 - (0xD800 << 10) - 0xDC00); |
142 }; | 142 }; |
143 | 143 |
144 } // namespace fletch | 144 } // namespace dartino |
145 | 145 |
146 #endif // SRC_VM_UNICODE_H_ | 146 #endif // SRC_VM_UNICODE_H_ |
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