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1 // Copyright 2010 the V8 project authors. All rights reserved. | 1 // Copyright 2010 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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114 return SparseJoin(array, length, convert); | 114 return SparseJoin(array, length, convert); |
115 } | 115 } |
116 | 116 |
117 // Fast case for one-element arrays. | 117 // Fast case for one-element arrays. |
118 if (length == 1) { | 118 if (length == 1) { |
119 var e = array[0]; | 119 var e = array[0]; |
120 if (!IS_UNDEFINED(e) || (0 in array)) { | 120 if (!IS_UNDEFINED(e) || (0 in array)) { |
121 if (IS_STRING(e)) return e; | 121 if (IS_STRING(e)) return e; |
122 return convert(e); | 122 return convert(e); |
123 } | 123 } |
| 124 return ''; |
124 } | 125 } |
125 | 126 |
126 // Construct an array for the elements. | 127 // Construct an array for the elements. |
127 var elements; | 128 var elements; |
128 var elements_length = 0; | 129 var elements_length = 0; |
129 | 130 |
130 // We pull the empty separator check outside the loop for speed! | 131 // We pull the empty separator check outside the loop for speed! |
131 if (separator.length == 0) { | 132 if (separator.length == 0) { |
132 elements = new $Array(length); | 133 elements = new $Array(length); |
133 for (var i = 0; i < length; i++) { | 134 for (var i = 0; i < length; i++) { |
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153 if (!IS_UNDEFINED(result)) return result; | 154 if (!IS_UNDEFINED(result)) return result; |
154 return %StringBuilderConcat(elements, elements_length, ''); | 155 return %StringBuilderConcat(elements, elements_length, ''); |
155 } finally { | 156 } finally { |
156 // Make sure to pop the visited array no matter what happens. | 157 // Make sure to pop the visited array no matter what happens. |
157 if (is_array) visited_arrays.pop(); | 158 if (is_array) visited_arrays.pop(); |
158 } | 159 } |
159 } | 160 } |
160 | 161 |
161 | 162 |
162 function ConvertToString(x) { | 163 function ConvertToString(x) { |
163 if (IS_STRING(x)) return x; | 164 // Assumes x is a non-string. |
164 if (IS_NUMBER(x)) return %_NumberToString(x); | 165 if (IS_NUMBER(x)) return %_NumberToString(x); |
165 if (IS_BOOLEAN(x)) return x ? 'true' : 'false'; | 166 if (IS_BOOLEAN(x)) return x ? 'true' : 'false'; |
166 return (IS_NULL_OR_UNDEFINED(x)) ? '' : %ToString(%DefaultString(x)); | 167 return (IS_NULL_OR_UNDEFINED(x)) ? '' : %ToString(%DefaultString(x)); |
167 } | 168 } |
168 | 169 |
169 | 170 |
170 function ConvertToLocaleString(e) { | 171 function ConvertToLocaleString(e) { |
171 if (e == null) { | 172 if (e == null) { |
172 return ''; | 173 return ''; |
173 } else { | 174 } else { |
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1209 "lastIndexOf", getFunction("lastIndexOf", ArrayLastIndexOf, 1), | 1210 "lastIndexOf", getFunction("lastIndexOf", ArrayLastIndexOf, 1), |
1210 "reduce", getFunction("reduce", ArrayReduce, 1), | 1211 "reduce", getFunction("reduce", ArrayReduce, 1), |
1211 "reduceRight", getFunction("reduceRight", ArrayReduceRight, 1) | 1212 "reduceRight", getFunction("reduceRight", ArrayReduceRight, 1) |
1212 )); | 1213 )); |
1213 | 1214 |
1214 %FinishArrayPrototypeSetup($Array.prototype); | 1215 %FinishArrayPrototypeSetup($Array.prototype); |
1215 } | 1216 } |
1216 | 1217 |
1217 | 1218 |
1218 SetupArray(); | 1219 SetupArray(); |
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