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Issue 225823003: Implement handlified String::Equals and Name::Equals. (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Created 6 years, 8 months ago
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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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