OLD | NEW |
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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54 function StringValueOf() { | 54 function StringValueOf() { |
55 if (!IS_STRING(this) && !IS_STRING_WRAPPER(this)) { | 55 if (!IS_STRING(this) && !IS_STRING_WRAPPER(this)) { |
56 throw new $TypeError('String.prototype.valueOf is not generic'); | 56 throw new $TypeError('String.prototype.valueOf is not generic'); |
57 } | 57 } |
58 return %_ValueOf(this); | 58 return %_ValueOf(this); |
59 } | 59 } |
60 | 60 |
61 | 61 |
62 // ECMA-262, section 15.5.4.4 | 62 // ECMA-262, section 15.5.4.4 |
63 function StringCharAt(pos) { | 63 function StringCharAt(pos) { |
64 if (IS_NULL_OR_UNDEFINED(this) && !IS_UNDETECTABLE(this)) { | 64 CHECK_OBJECT_COERCIBLE(this, "String.prototype.charAt"); |
65 throw MakeTypeError("called_on_null_or_undefined", | 65 |
66 ["String.prototype.charAt"]); | |
67 } | |
68 var result = %_StringCharAt(this, pos); | 66 var result = %_StringCharAt(this, pos); |
69 if (%_IsSmi(result)) { | 67 if (%_IsSmi(result)) { |
70 result = %_StringCharAt(TO_STRING_INLINE(this), TO_INTEGER(pos)); | 68 result = %_StringCharAt(TO_STRING_INLINE(this), TO_INTEGER(pos)); |
71 } | 69 } |
72 return result; | 70 return result; |
73 } | 71 } |
74 | 72 |
75 | 73 |
76 // ECMA-262 section 15.5.4.5 | 74 // ECMA-262 section 15.5.4.5 |
77 function StringCharCodeAt(pos) { | 75 function StringCharCodeAt(pos) { |
78 if (IS_NULL_OR_UNDEFINED(this) && !IS_UNDETECTABLE(this)) { | 76 CHECK_OBJECT_COERCIBLE(this, "String.prototype.charCodeAt"); |
79 throw MakeTypeError("called_on_null_or_undefined", | 77 |
80 ["String.prototype.charCodeAt"]); | |
81 } | |
82 var result = %_StringCharCodeAt(this, pos); | 78 var result = %_StringCharCodeAt(this, pos); |
83 if (!%_IsSmi(result)) { | 79 if (!%_IsSmi(result)) { |
84 result = %_StringCharCodeAt(TO_STRING_INLINE(this), TO_INTEGER(pos)); | 80 result = %_StringCharCodeAt(TO_STRING_INLINE(this), TO_INTEGER(pos)); |
85 } | 81 } |
86 return result; | 82 return result; |
87 } | 83 } |
88 | 84 |
89 | 85 |
90 // ECMA-262, section 15.5.4.6 | 86 // ECMA-262, section 15.5.4.6 |
91 function StringConcat() { | 87 function StringConcat() { |
92 if (IS_NULL_OR_UNDEFINED(this) && !IS_UNDETECTABLE(this)) { | 88 CHECK_OBJECT_COERCIBLE(this, "String.prototype.concat"); |
93 throw MakeTypeError("called_on_null_or_undefined", | 89 |
94 ["String.prototype.concat"]); | |
95 } | |
96 var len = %_ArgumentsLength(); | 90 var len = %_ArgumentsLength(); |
97 var this_as_string = TO_STRING_INLINE(this); | 91 var this_as_string = TO_STRING_INLINE(this); |
98 if (len === 1) { | 92 if (len === 1) { |
99 return this_as_string + %_Arguments(0); | 93 return this_as_string + %_Arguments(0); |
100 } | 94 } |
101 var parts = new InternalArray(len + 1); | 95 var parts = new InternalArray(len + 1); |
102 parts[0] = this_as_string; | 96 parts[0] = this_as_string; |
103 for (var i = 0; i < len; i++) { | 97 for (var i = 0; i < len; i++) { |
104 var part = %_Arguments(i); | 98 var part = %_Arguments(i); |
105 parts[i + 1] = TO_STRING_INLINE(part); | 99 parts[i + 1] = TO_STRING_INLINE(part); |
106 } | 100 } |
107 return %StringBuilderConcat(parts, len + 1, ""); | 101 return %StringBuilderConcat(parts, len + 1, ""); |
108 } | 102 } |
109 | 103 |
110 // Match ES3 and Safari | 104 // Match ES3 and Safari |
111 %FunctionSetLength(StringConcat, 1); | 105 %FunctionSetLength(StringConcat, 1); |
112 | 106 |
113 | 107 |
114 // ECMA-262 section 15.5.4.7 | 108 // ECMA-262 section 15.5.4.7 |
115 function StringIndexOf(pattern /* position */) { // length == 1 | 109 function StringIndexOf(pattern /* position */) { // length == 1 |
116 if (IS_NULL_OR_UNDEFINED(this) && !IS_UNDETECTABLE(this)) { | 110 CHECK_OBJECT_COERCIBLE(this, "String.prototype.indexOf"); |
117 throw MakeTypeError("called_on_null_or_undefined", | 111 |
118 ["String.prototype.indexOf"]); | |
119 } | |
120 var subject = TO_STRING_INLINE(this); | 112 var subject = TO_STRING_INLINE(this); |
121 pattern = TO_STRING_INLINE(pattern); | 113 pattern = TO_STRING_INLINE(pattern); |
122 var index = 0; | 114 var index = 0; |
123 if (%_ArgumentsLength() > 1) { | 115 if (%_ArgumentsLength() > 1) { |
124 index = %_Arguments(1); // position | 116 index = %_Arguments(1); // position |
125 index = TO_INTEGER(index); | 117 index = TO_INTEGER(index); |
126 if (index < 0) index = 0; | 118 if (index < 0) index = 0; |
127 if (index > subject.length) index = subject.length; | 119 if (index > subject.length) index = subject.length; |
128 } | 120 } |
129 return %StringIndexOf(subject, pattern, index); | 121 return %StringIndexOf(subject, pattern, index); |
130 } | 122 } |
131 | 123 |
132 | 124 |
133 // ECMA-262 section 15.5.4.8 | 125 // ECMA-262 section 15.5.4.8 |
134 function StringLastIndexOf(pat /* position */) { // length == 1 | 126 function StringLastIndexOf(pat /* position */) { // length == 1 |
135 if (IS_NULL_OR_UNDEFINED(this) && !IS_UNDETECTABLE(this)) { | 127 CHECK_OBJECT_COERCIBLE(this, "String.prototype.lastIndexOf"); |
136 throw MakeTypeError("called_on_null_or_undefined", | 128 |
137 ["String.prototype.lastIndexOf"]); | |
138 } | |
139 var sub = TO_STRING_INLINE(this); | 129 var sub = TO_STRING_INLINE(this); |
140 var subLength = sub.length; | 130 var subLength = sub.length; |
141 var pat = TO_STRING_INLINE(pat); | 131 var pat = TO_STRING_INLINE(pat); |
142 var patLength = pat.length; | 132 var patLength = pat.length; |
143 var index = subLength - patLength; | 133 var index = subLength - patLength; |
144 if (%_ArgumentsLength() > 1) { | 134 if (%_ArgumentsLength() > 1) { |
145 var position = ToNumber(%_Arguments(1)); | 135 var position = ToNumber(%_Arguments(1)); |
146 if (!NUMBER_IS_NAN(position)) { | 136 if (!NUMBER_IS_NAN(position)) { |
147 position = TO_INTEGER(position); | 137 position = TO_INTEGER(position); |
148 if (position < 0) { | 138 if (position < 0) { |
149 position = 0; | 139 position = 0; |
150 } | 140 } |
151 if (position + patLength < subLength) { | 141 if (position + patLength < subLength) { |
152 index = position; | 142 index = position; |
153 } | 143 } |
154 } | 144 } |
155 } | 145 } |
156 if (index < 0) { | 146 if (index < 0) { |
157 return -1; | 147 return -1; |
158 } | 148 } |
159 return %StringLastIndexOf(sub, pat, index); | 149 return %StringLastIndexOf(sub, pat, index); |
160 } | 150 } |
161 | 151 |
162 | 152 |
163 // ECMA-262 section 15.5.4.9 | 153 // ECMA-262 section 15.5.4.9 |
164 // | 154 // |
165 // This function is implementation specific. For now, we do not | 155 // This function is implementation specific. For now, we do not |
166 // do anything locale specific. | 156 // do anything locale specific. |
167 function StringLocaleCompare(other) { | 157 function StringLocaleCompare(other) { |
168 if (IS_NULL_OR_UNDEFINED(this) && !IS_UNDETECTABLE(this)) { | 158 CHECK_OBJECT_COERCIBLE(this, "String.prototype.localeCompare"); |
169 throw MakeTypeError("called_on_null_or_undefined", | 159 |
170 ["String.prototype.localeCompare"]); | |
171 } | |
172 return %StringLocaleCompare(TO_STRING_INLINE(this), | 160 return %StringLocaleCompare(TO_STRING_INLINE(this), |
173 TO_STRING_INLINE(other)); | 161 TO_STRING_INLINE(other)); |
174 } | 162 } |
175 | 163 |
176 | 164 |
177 // ECMA-262 section 15.5.4.10 | 165 // ECMA-262 section 15.5.4.10 |
178 function StringMatch(regexp) { | 166 function StringMatch(regexp) { |
179 if (IS_NULL_OR_UNDEFINED(this) && !IS_UNDETECTABLE(this)) { | 167 CHECK_OBJECT_COERCIBLE(this, "String.prototype.match"); |
180 throw MakeTypeError("called_on_null_or_undefined", | 168 |
181 ["String.prototype.match"]); | |
182 } | |
183 var subject = TO_STRING_INLINE(this); | 169 var subject = TO_STRING_INLINE(this); |
184 if (IS_REGEXP(regexp)) { | 170 if (IS_REGEXP(regexp)) { |
185 // Emulate RegExp.prototype.exec's side effect in step 5, even though | 171 // Emulate RegExp.prototype.exec's side effect in step 5, even though |
186 // value is discarded. | 172 // value is discarded. |
187 var lastIndex = regexp.lastIndex; | 173 var lastIndex = regexp.lastIndex; |
188 TO_INTEGER_FOR_SIDE_EFFECT(lastIndex); | 174 TO_INTEGER_FOR_SIDE_EFFECT(lastIndex); |
189 if (!regexp.global) return RegExpExecNoTests(regexp, subject, 0); | 175 if (!regexp.global) return RegExpExecNoTests(regexp, subject, 0); |
190 %_Log('regexp', 'regexp-match,%0S,%1r', [subject, regexp]); | 176 %_Log('regexp', 'regexp-match,%0S,%1r', [subject, regexp]); |
191 // lastMatchInfo is defined in regexp.js. | 177 // lastMatchInfo is defined in regexp.js. |
192 var result = %StringMatch(subject, regexp, lastMatchInfo); | 178 var result = %StringMatch(subject, regexp, lastMatchInfo); |
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203 // This has the same size as the lastMatchInfo array, and can be used for | 189 // This has the same size as the lastMatchInfo array, and can be used for |
204 // functions that expect that structure to be returned. It is used when the | 190 // functions that expect that structure to be returned. It is used when the |
205 // needle is a string rather than a regexp. In this case we can't update | 191 // needle is a string rather than a regexp. In this case we can't update |
206 // lastMatchArray without erroneously affecting the properties on the global | 192 // lastMatchArray without erroneously affecting the properties on the global |
207 // RegExp object. | 193 // RegExp object. |
208 var reusableMatchInfo = [2, "", "", -1, -1]; | 194 var reusableMatchInfo = [2, "", "", -1, -1]; |
209 | 195 |
210 | 196 |
211 // ECMA-262, section 15.5.4.11 | 197 // ECMA-262, section 15.5.4.11 |
212 function StringReplace(search, replace) { | 198 function StringReplace(search, replace) { |
213 if (IS_NULL_OR_UNDEFINED(this) && !IS_UNDETECTABLE(this)) { | 199 CHECK_OBJECT_COERCIBLE(this, "String.prototype.replace"); |
214 throw MakeTypeError("called_on_null_or_undefined", | 200 |
215 ["String.prototype.replace"]); | |
216 } | |
217 var subject = TO_STRING_INLINE(this); | 201 var subject = TO_STRING_INLINE(this); |
218 | 202 |
219 // Decision tree for dispatch | 203 // Decision tree for dispatch |
220 // .. regexp search | 204 // .. regexp search |
221 // .... string replace | 205 // .... string replace |
222 // ...... non-global search | 206 // ...... non-global search |
223 // ........ empty string replace | 207 // ........ empty string replace |
224 // ........ non-empty string replace (with $-expansion) | 208 // ........ non-empty string replace (with $-expansion) |
225 // ...... global search | 209 // ...... global search |
226 // ........ no need to circumvent last match info override | 210 // ........ no need to circumvent last match info override |
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536 | 520 |
537 result += replacement; // The add method converts to string if necessary. | 521 result += replacement; // The add method converts to string if necessary. |
538 // Can't use matchInfo any more from here, since the function could | 522 // Can't use matchInfo any more from here, since the function could |
539 // overwrite it. | 523 // overwrite it. |
540 return result + %_SubString(subject, endOfMatch, subject.length); | 524 return result + %_SubString(subject, endOfMatch, subject.length); |
541 } | 525 } |
542 | 526 |
543 | 527 |
544 // ECMA-262 section 15.5.4.12 | 528 // ECMA-262 section 15.5.4.12 |
545 function StringSearch(re) { | 529 function StringSearch(re) { |
546 if (IS_NULL_OR_UNDEFINED(this) && !IS_UNDETECTABLE(this)) { | 530 CHECK_OBJECT_COERCIBLE(this, "String.prototype.search"); |
547 throw MakeTypeError("called_on_null_or_undefined", | 531 |
548 ["String.prototype.search"]); | |
549 } | |
550 var regexp; | 532 var regexp; |
551 if (IS_STRING(re)) { | 533 if (IS_STRING(re)) { |
552 regexp = %_GetFromCache(STRING_TO_REGEXP_CACHE_ID, re); | 534 regexp = %_GetFromCache(STRING_TO_REGEXP_CACHE_ID, re); |
553 } else if (IS_REGEXP(re)) { | 535 } else if (IS_REGEXP(re)) { |
554 regexp = re; | 536 regexp = re; |
555 } else { | 537 } else { |
556 regexp = new $RegExp(re); | 538 regexp = new $RegExp(re); |
557 } | 539 } |
558 var match = DoRegExpExec(regexp, TO_STRING_INLINE(this), 0); | 540 var match = DoRegExpExec(regexp, TO_STRING_INLINE(this), 0); |
559 if (match) { | 541 if (match) { |
560 return match[CAPTURE0]; | 542 return match[CAPTURE0]; |
561 } | 543 } |
562 return -1; | 544 return -1; |
563 } | 545 } |
564 | 546 |
565 | 547 |
566 // ECMA-262 section 15.5.4.13 | 548 // ECMA-262 section 15.5.4.13 |
567 function StringSlice(start, end) { | 549 function StringSlice(start, end) { |
568 if (IS_NULL_OR_UNDEFINED(this) && !IS_UNDETECTABLE(this)) { | 550 CHECK_OBJECT_COERCIBLE(this, "String.prototype.slice"); |
569 throw MakeTypeError("called_on_null_or_undefined", | 551 |
570 ["String.prototype.slice"]); | |
571 } | |
572 var s = TO_STRING_INLINE(this); | 552 var s = TO_STRING_INLINE(this); |
573 var s_len = s.length; | 553 var s_len = s.length; |
574 var start_i = TO_INTEGER(start); | 554 var start_i = TO_INTEGER(start); |
575 var end_i = s_len; | 555 var end_i = s_len; |
576 if (!IS_UNDEFINED(end)) { | 556 if (!IS_UNDEFINED(end)) { |
577 end_i = TO_INTEGER(end); | 557 end_i = TO_INTEGER(end); |
578 } | 558 } |
579 | 559 |
580 if (start_i < 0) { | 560 if (start_i < 0) { |
581 start_i += s_len; | 561 start_i += s_len; |
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602 if (end_i <= start_i) { | 582 if (end_i <= start_i) { |
603 return ''; | 583 return ''; |
604 } | 584 } |
605 | 585 |
606 return %_SubString(s, start_i, end_i); | 586 return %_SubString(s, start_i, end_i); |
607 } | 587 } |
608 | 588 |
609 | 589 |
610 // ECMA-262 section 15.5.4.14 | 590 // ECMA-262 section 15.5.4.14 |
611 function StringSplit(separator, limit) { | 591 function StringSplit(separator, limit) { |
612 if (IS_NULL_OR_UNDEFINED(this) && !IS_UNDETECTABLE(this)) { | 592 CHECK_OBJECT_COERCIBLE(this, "String.prototype.split"); |
613 throw MakeTypeError("called_on_null_or_undefined", | 593 |
614 ["String.prototype.split"]); | |
615 } | |
616 var subject = TO_STRING_INLINE(this); | 594 var subject = TO_STRING_INLINE(this); |
617 limit = (IS_UNDEFINED(limit)) ? 0xffffffff : TO_UINT32(limit); | 595 limit = (IS_UNDEFINED(limit)) ? 0xffffffff : TO_UINT32(limit); |
618 | 596 |
619 var length = subject.length; | 597 var length = subject.length; |
620 if (!IS_REGEXP(separator)) { | 598 if (!IS_REGEXP(separator)) { |
621 var separator_string = TO_STRING_INLINE(separator); | 599 var separator_string = TO_STRING_INLINE(separator); |
622 | 600 |
623 if (limit === 0) return []; | 601 if (limit === 0) return []; |
624 | 602 |
625 // ECMA-262 says that if separator is undefined, the result should | 603 // ECMA-262 says that if separator is undefined, the result should |
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702 } | 680 } |
703 | 681 |
704 startIndex = currentIndex = endIndex; | 682 startIndex = currentIndex = endIndex; |
705 } | 683 } |
706 return result; | 684 return result; |
707 } | 685 } |
708 | 686 |
709 | 687 |
710 // ECMA-262 section 15.5.4.15 | 688 // ECMA-262 section 15.5.4.15 |
711 function StringSubstring(start, end) { | 689 function StringSubstring(start, end) { |
712 if (IS_NULL_OR_UNDEFINED(this) && !IS_UNDETECTABLE(this)) { | 690 CHECK_OBJECT_COERCIBLE(this, "String.prototype.subString"); |
713 throw MakeTypeError("called_on_null_or_undefined", | 691 |
714 ["String.prototype.subString"]); | |
715 } | |
716 var s = TO_STRING_INLINE(this); | 692 var s = TO_STRING_INLINE(this); |
717 var s_len = s.length; | 693 var s_len = s.length; |
718 | 694 |
719 var start_i = TO_INTEGER(start); | 695 var start_i = TO_INTEGER(start); |
720 if (start_i < 0) { | 696 if (start_i < 0) { |
721 start_i = 0; | 697 start_i = 0; |
722 } else if (start_i > s_len) { | 698 } else if (start_i > s_len) { |
723 start_i = s_len; | 699 start_i = s_len; |
724 } | 700 } |
725 | 701 |
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737 } | 713 } |
738 } | 714 } |
739 } | 715 } |
740 | 716 |
741 return %_SubString(s, start_i, end_i); | 717 return %_SubString(s, start_i, end_i); |
742 } | 718 } |
743 | 719 |
744 | 720 |
745 // This is not a part of ECMA-262. | 721 // This is not a part of ECMA-262. |
746 function StringSubstr(start, n) { | 722 function StringSubstr(start, n) { |
747 if (IS_NULL_OR_UNDEFINED(this) && !IS_UNDETECTABLE(this)) { | 723 CHECK_OBJECT_COERCIBLE(this, "String.prototype.substr"); |
748 throw MakeTypeError("called_on_null_or_undefined", | 724 |
749 ["String.prototype.substr"]); | |
750 } | |
751 var s = TO_STRING_INLINE(this); | 725 var s = TO_STRING_INLINE(this); |
752 var len; | 726 var len; |
753 | 727 |
754 // Correct n: If not given, set to string length; if explicitly | 728 // Correct n: If not given, set to string length; if explicitly |
755 // set to undefined, zero, or negative, returns empty string. | 729 // set to undefined, zero, or negative, returns empty string. |
756 if (IS_UNDEFINED(n)) { | 730 if (IS_UNDEFINED(n)) { |
757 len = s.length; | 731 len = s.length; |
758 } else { | 732 } else { |
759 len = TO_INTEGER(n); | 733 len = TO_INTEGER(n); |
760 if (len <= 0) return ''; | 734 if (len <= 0) return ''; |
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779 | 753 |
780 var end = start + len; | 754 var end = start + len; |
781 if (end > s.length) end = s.length; | 755 if (end > s.length) end = s.length; |
782 | 756 |
783 return %_SubString(s, start, end); | 757 return %_SubString(s, start, end); |
784 } | 758 } |
785 | 759 |
786 | 760 |
787 // ECMA-262, 15.5.4.16 | 761 // ECMA-262, 15.5.4.16 |
788 function StringToLowerCase() { | 762 function StringToLowerCase() { |
789 if (IS_NULL_OR_UNDEFINED(this) && !IS_UNDETECTABLE(this)) { | 763 CHECK_OBJECT_COERCIBLE(this, "String.prototype.toLowerCase"); |
790 throw MakeTypeError("called_on_null_or_undefined", | 764 |
791 ["String.prototype.toLowerCase"]); | |
792 } | |
793 return %StringToLowerCase(TO_STRING_INLINE(this)); | 765 return %StringToLowerCase(TO_STRING_INLINE(this)); |
794 } | 766 } |
795 | 767 |
796 | 768 |
797 // ECMA-262, 15.5.4.17 | 769 // ECMA-262, 15.5.4.17 |
798 function StringToLocaleLowerCase() { | 770 function StringToLocaleLowerCase() { |
799 if (IS_NULL_OR_UNDEFINED(this) && !IS_UNDETECTABLE(this)) { | 771 CHECK_OBJECT_COERCIBLE(this, "String.prototype.toLocaleLowerCase"); |
800 throw MakeTypeError("called_on_null_or_undefined", | 772 |
801 ["String.prototype.toLocaleLowerCase"]); | |
802 } | |
803 return %StringToLowerCase(TO_STRING_INLINE(this)); | 773 return %StringToLowerCase(TO_STRING_INLINE(this)); |
804 } | 774 } |
805 | 775 |
806 | 776 |
807 // ECMA-262, 15.5.4.18 | 777 // ECMA-262, 15.5.4.18 |
808 function StringToUpperCase() { | 778 function StringToUpperCase() { |
809 if (IS_NULL_OR_UNDEFINED(this) && !IS_UNDETECTABLE(this)) { | 779 CHECK_OBJECT_COERCIBLE(this, "String.prototype.toUpperCase"); |
810 throw MakeTypeError("called_on_null_or_undefined", | 780 |
811 ["String.prototype.toUpperCase"]); | |
812 } | |
813 return %StringToUpperCase(TO_STRING_INLINE(this)); | 781 return %StringToUpperCase(TO_STRING_INLINE(this)); |
814 } | 782 } |
815 | 783 |
816 | 784 |
817 // ECMA-262, 15.5.4.19 | 785 // ECMA-262, 15.5.4.19 |
818 function StringToLocaleUpperCase() { | 786 function StringToLocaleUpperCase() { |
819 if (IS_NULL_OR_UNDEFINED(this) && !IS_UNDETECTABLE(this)) { | 787 CHECK_OBJECT_COERCIBLE(this, "String.prototype.toLocaleUpperCase"); |
820 throw MakeTypeError("called_on_null_or_undefined", | 788 |
821 ["String.prototype.toLocaleUpperCase"]); | |
822 } | |
823 return %StringToUpperCase(TO_STRING_INLINE(this)); | 789 return %StringToUpperCase(TO_STRING_INLINE(this)); |
824 } | 790 } |
825 | 791 |
826 // ES5, 15.5.4.20 | 792 // ES5, 15.5.4.20 |
827 function StringTrim() { | 793 function StringTrim() { |
828 if (IS_NULL_OR_UNDEFINED(this) && !IS_UNDETECTABLE(this)) { | 794 CHECK_OBJECT_COERCIBLE(this, "String.prototype.trim"); |
829 throw MakeTypeError("called_on_null_or_undefined", | 795 |
830 ["String.prototype.trim"]); | |
831 } | |
832 return %StringTrim(TO_STRING_INLINE(this), true, true); | 796 return %StringTrim(TO_STRING_INLINE(this), true, true); |
833 } | 797 } |
834 | 798 |
835 function StringTrimLeft() { | 799 function StringTrimLeft() { |
836 if (IS_NULL_OR_UNDEFINED(this) && !IS_UNDETECTABLE(this)) { | 800 CHECK_OBJECT_COERCIBLE(this, "String.prototype.trimLeft"); |
837 throw MakeTypeError("called_on_null_or_undefined", | 801 |
838 ["String.prototype.trimLeft"]); | |
839 } | |
840 return %StringTrim(TO_STRING_INLINE(this), true, false); | 802 return %StringTrim(TO_STRING_INLINE(this), true, false); |
841 } | 803 } |
842 | 804 |
843 function StringTrimRight() { | 805 function StringTrimRight() { |
844 if (IS_NULL_OR_UNDEFINED(this) && !IS_UNDETECTABLE(this)) { | 806 CHECK_OBJECT_COERCIBLE(this, "String.prototype.trimRight"); |
845 throw MakeTypeError("called_on_null_or_undefined", | 807 |
846 ["String.prototype.trimRight"]); | |
847 } | |
848 return %StringTrim(TO_STRING_INLINE(this), false, true); | 808 return %StringTrim(TO_STRING_INLINE(this), false, true); |
849 } | 809 } |
850 | 810 |
851 | 811 |
852 // ECMA-262, section 15.5.3.2 | 812 // ECMA-262, section 15.5.3.2 |
853 function StringFromCharCode(code) { | 813 function StringFromCharCode(code) { |
854 var n = %_ArgumentsLength(); | 814 var n = %_ArgumentsLength(); |
855 if (n == 1) { | 815 if (n == 1) { |
856 if (!%_IsSmi(code)) code = ToNumber(code); | 816 if (!%_IsSmi(code)) code = ToNumber(code); |
857 return %_StringCharFromCode(code & 0xffff); | 817 return %_StringCharFromCode(code & 0xffff); |
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1005 "fixed", StringFixed, | 965 "fixed", StringFixed, |
1006 "italics", StringItalics, | 966 "italics", StringItalics, |
1007 "small", StringSmall, | 967 "small", StringSmall, |
1008 "strike", StringStrike, | 968 "strike", StringStrike, |
1009 "sub", StringSub, | 969 "sub", StringSub, |
1010 "sup", StringSup | 970 "sup", StringSup |
1011 )); | 971 )); |
1012 } | 972 } |
1013 | 973 |
1014 SetUpString(); | 974 SetUpString(); |
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