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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 // 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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7557 | 7557 |
7558 // The SeqString abstract class captures sequential string values. | 7558 // The SeqString abstract class captures sequential string values. |
7559 class SeqString: public String { | 7559 class SeqString: public String { |
7560 public: | 7560 public: |
7561 // Casting. | 7561 // Casting. |
7562 static inline SeqString* cast(Object* obj); | 7562 static inline SeqString* cast(Object* obj); |
7563 | 7563 |
7564 // Layout description. | 7564 // Layout description. |
7565 static const int kHeaderSize = String::kSize; | 7565 static const int kHeaderSize = String::kSize; |
7566 | 7566 |
| 7567 void Truncate(int new_length); |
| 7568 |
7567 private: | 7569 private: |
7568 DISALLOW_IMPLICIT_CONSTRUCTORS(SeqString); | 7570 DISALLOW_IMPLICIT_CONSTRUCTORS(SeqString); |
7569 }; | 7571 }; |
7570 | 7572 |
7571 | 7573 |
7572 // The AsciiString class captures sequential ASCII string objects. | 7574 // The AsciiString class captures sequential ASCII string objects. |
7573 // Each character in the AsciiString is an ASCII character. | 7575 // Each character in the AsciiString is an ASCII character. |
7574 class SeqOneByteString: public SeqString { | 7576 class SeqOneByteString: public SeqString { |
7575 public: | 7577 public: |
7576 static const bool kHasAsciiEncoding = true; | 7578 static const bool kHasAsciiEncoding = true; |
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9008 } else { | 9010 } else { |
9009 value &= ~(1 << bit_position); | 9011 value &= ~(1 << bit_position); |
9010 } | 9012 } |
9011 return value; | 9013 return value; |
9012 } | 9014 } |
9013 }; | 9015 }; |
9014 | 9016 |
9015 } } // namespace v8::internal | 9017 } } // namespace v8::internal |
9016 | 9018 |
9017 #endif // V8_OBJECTS_H_ | 9019 #endif // V8_OBJECTS_H_ |
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