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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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149 // characters of the string are uninitialized. Currently used in regexp code | 149 // characters of the string are uninitialized. Currently used in regexp code |
150 // only, where they are pretenured. | 150 // only, where they are pretenured. |
151 Handle<SeqOneByteString> NewRawOneByteString( | 151 Handle<SeqOneByteString> NewRawOneByteString( |
152 int length, | 152 int length, |
153 PretenureFlag pretenure = NOT_TENURED); | 153 PretenureFlag pretenure = NOT_TENURED); |
154 Handle<SeqTwoByteString> NewRawTwoByteString( | 154 Handle<SeqTwoByteString> NewRawTwoByteString( |
155 int length, | 155 int length, |
156 PretenureFlag pretenure = NOT_TENURED); | 156 PretenureFlag pretenure = NOT_TENURED); |
157 | 157 |
158 // Create a new cons string object which consists of a pair of strings. | 158 // Create a new cons string object which consists of a pair of strings. |
159 Handle<String> NewConsString(Handle<String> first, | 159 Handle<String> NewConsString(Handle<String> left, |
160 Handle<String> second); | 160 Handle<String> right); |
| 161 |
| 162 Handle<ConsString> NewRawConsString(String::Encoding encoding); |
161 | 163 |
162 // Create a new sequential string containing the concatenation of the inputs. | 164 // Create a new sequential string containing the concatenation of the inputs. |
163 Handle<String> NewFlatConcatString(Handle<String> first, | 165 Handle<String> NewFlatConcatString(Handle<String> first, |
164 Handle<String> second); | 166 Handle<String> second); |
165 | 167 |
166 // Create a new string object which holds a substring of a string. | |
167 Handle<String> NewSubString(Handle<String> str, | |
168 int begin, | |
169 int end); | |
170 | |
171 // Create a new string object which holds a proper substring of a string. | 168 // Create a new string object which holds a proper substring of a string. |
172 Handle<String> NewProperSubString(Handle<String> str, | 169 Handle<String> NewProperSubString(Handle<String> str, |
173 int begin, | 170 int begin, |
174 int end); | 171 int end); |
175 | 172 |
| 173 // Create a new string object which holds a substring of a string. |
| 174 Handle<String> NewSubString(Handle<String> str, int begin, int end) { |
| 175 if (begin == 0 && end == str->length()) return str; |
| 176 return NewProperSubString(str, begin, end); |
| 177 } |
| 178 |
| 179 Handle<SlicedString> NewRawSlicedString(String::Encoding encoding); |
| 180 |
176 // Creates a new external String object. There are two String encodings | 181 // Creates a new external String object. There are two String encodings |
177 // in the system: ASCII and two byte. Unlike other String types, it does | 182 // in the system: ASCII and two byte. Unlike other String types, it does |
178 // not make sense to have a UTF-8 factory function for external strings, | 183 // not make sense to have a UTF-8 factory function for external strings, |
179 // because we cannot change the underlying buffer. | 184 // because we cannot change the underlying buffer. |
180 Handle<String> NewExternalStringFromAscii( | 185 Handle<String> NewExternalStringFromAscii( |
181 const ExternalAsciiString::Resource* resource); | 186 const ExternalAsciiString::Resource* resource); |
182 Handle<String> NewExternalStringFromTwoByte( | 187 Handle<String> NewExternalStringFromTwoByte( |
183 const ExternalTwoByteString::Resource* resource); | 188 const ExternalTwoByteString::Resource* resource); |
184 | 189 |
185 // Create a symbol. | 190 // Create a symbol. |
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675 } | 680 } |
676 | 681 |
677 private: | 682 private: |
678 Isolate* isolate_; | 683 Isolate* isolate_; |
679 }; | 684 }; |
680 | 685 |
681 | 686 |
682 } } // namespace v8::internal | 687 } } // namespace v8::internal |
683 | 688 |
684 #endif // V8_FACTORY_H_ | 689 #endif // V8_FACTORY_H_ |
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