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| 1 // Copyright 2011 the V8 project authors. All rights reserved. | 1 // Copyright 2011 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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| 72 | 72 |
| 73 | 73 |
| 74 void StringCharacterStreamIterator::operator++() { | 74 void StringCharacterStreamIterator::operator++() { |
| 75 end_ = !stream_->HasMore(); | 75 end_ = !stream_->HasMore(); |
| 76 if (!end_) { | 76 if (!end_) { |
| 77 current_ = stream_->GetNext(); | 77 current_ = stream_->GetNext(); |
| 78 } | 78 } |
| 79 } | 79 } |
| 80 } // End anonymous namespace. | 80 } // End anonymous namespace. |
| 81 | 81 |
| 82 | |
| 83 double StringToDouble(UnicodeCache* unicode_cache, | |
| 84 String* str, int flags, double empty_string_val) { | |
| 85 StringShape shape(str); | |
| 86 // TODO(dcarney): Use a Visitor here. | |
| 87 if (shape.IsSequentialAscii()) { | |
| 88 const uint8_t* begin = SeqOneByteString::cast(str)->GetChars(); | |
| 89 const uint8_t* end = begin + str->length(); | |
| 90 return InternalStringToDouble(unicode_cache, begin, end, flags, | |
| 91 empty_string_val); | |
| 92 } else if (shape.IsSequentialTwoByte()) { | |
| 93 const uc16* begin = SeqTwoByteString::cast(str)->GetChars(); | |
| 94 const uc16* end = begin + str->length(); | |
| 95 return InternalStringToDouble(unicode_cache, begin, end, flags, | |
| 96 empty_string_val); | |
| 97 } else { | |
| 98 ConsStringIteratorOp op; | |
| 99 StringCharacterStream stream(str, &op); | |
| 100 return InternalStringToDouble(unicode_cache, | |
| 101 StringCharacterStreamIterator(&stream), | |
| 102 StringCharacterStreamIterator::EndMarker(), | |
| 103 flags, | |
| 104 empty_string_val); | |
| 105 } | |
| 106 } | |
| 107 | |
| 108 | |
| 109 double StringToInt(UnicodeCache* unicode_cache, | |
| 110 String* str, | |
| 111 int radix) { | |
| 112 StringShape shape(str); | |
| 113 // TODO(dcarney): Use a Visitor here. | |
| 114 if (shape.IsSequentialAscii()) { | |
| 115 const uint8_t* begin = SeqOneByteString::cast(str)->GetChars(); | |
| 116 const uint8_t* end = begin + str->length(); | |
| 117 return InternalStringToInt(unicode_cache, begin, end, radix); | |
| 118 } else if (shape.IsSequentialTwoByte()) { | |
| 119 const uc16* begin = SeqTwoByteString::cast(str)->GetChars(); | |
| 120 const uc16* end = begin + str->length(); | |
| 121 return InternalStringToInt(unicode_cache, begin, end, radix); | |
| 122 } else { | |
| 123 ConsStringIteratorOp op; | |
| 124 StringCharacterStream stream(str, &op); | |
| 125 return InternalStringToInt(unicode_cache, | |
| 126 StringCharacterStreamIterator(&stream), | |
| 127 StringCharacterStreamIterator::EndMarker(), | |
| 128 radix); | |
| 129 } | |
| 130 } | |
| 131 | |
| 132 } } // namespace v8::internal | 82 } } // namespace v8::internal |
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