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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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