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1 // Copyright 2006-2008 the V8 project authors. All rights reserved. | 1 // Copyright 2006-2008 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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43 var kCapitalVowelSounds = 0; | 43 var kCapitalVowelSounds = 0; |
44 | 44 |
45 // Matches Messages::kNoLineNumberInfo from v8.h | 45 // Matches Messages::kNoLineNumberInfo from v8.h |
46 var kNoLineNumberInfo = 0; | 46 var kNoLineNumberInfo = 0; |
47 | 47 |
48 // If this object gets passed to an error constructor the error will | 48 // If this object gets passed to an error constructor the error will |
49 // get an accessor for .message that constructs a descriptive error | 49 // get an accessor for .message that constructs a descriptive error |
50 // message on access. | 50 // message on access. |
51 var kAddMessageAccessorsMarker = { }; | 51 var kAddMessageAccessorsMarker = { }; |
52 | 52 |
53 | |
54 function GetInstanceName(cons) { | |
55 if (cons.length == 0) { | |
56 return ""; | |
57 } | |
58 var first = %StringToLowerCase(StringCharAt.call(cons, 0)); | |
59 if (kVowelSounds === 0) { | |
60 kVowelSounds = {a: true, e: true, i: true, o: true, u: true, y: true}; | |
61 kCapitalVowelSounds = {a: true, e: true, i: true, o: true, u: true, h: true, | |
62 f: true, l: true, m: true, n: true, r: true, s: true, x: true, y: true}; | |
63 } | |
64 var vowel_mapping = kVowelSounds; | |
65 if (cons.length > 1 && (StringCharAt.call(cons, 0) != first)) { | |
66 // First char is upper case | |
67 var second = %StringToLowerCase(StringCharAt.call(cons, 1)); | |
68 // Second char is upper case | |
69 if (StringCharAt.call(cons, 1) != second) { | |
70 vowel_mapping = kCapitalVowelSounds; | |
71 } | |
72 } | |
73 var s = vowel_mapping[first] ? "an " : "a "; | |
74 return s + cons; | |
75 } | |
76 | |
77 | |
78 var kMessages = 0; | 53 var kMessages = 0; |
79 | 54 |
| 55 var kReplacementMarkers = |
| 56 [ "%0", "%1", "%2", "%3", "%4", "%5", "%6", "%7", "%8", "%9", "%10" ]; |
80 | 57 |
81 function FormatString(format, args) { | 58 function FormatString(format, args) { |
82 var result = format; | 59 var result = format; |
83 for (var i = 0; i < args.length; i++) { | 60 for (var i = 0; i < args.length; i++) { |
84 var str; | 61 var str; |
85 try { | 62 try { |
86 str = ToDetailString(args[i]); | 63 str = ToDetailString(args[i]); |
87 } catch (e) { | 64 } catch (e) { |
88 str = "#<error>"; | 65 str = "#<error>"; |
89 } | 66 } |
90 result = ArrayJoin.call(StringSplit.call(result, "%" + i), str); | 67 var replacement_marker = kReplacementMarkers[i]; |
| 68 var split = %_CallFunction(result, replacement_marker, StringSplit); |
| 69 result = %_CallFunction(split, str, ArrayJoin); |
91 } | 70 } |
92 return result; | 71 return result; |
93 } | 72 } |
94 | 73 |
95 | 74 |
96 // To check if something is a native error we need to check the | 75 // To check if something is a native error we need to check the |
97 // concrete native error types. It is not enough to check "obj | 76 // concrete native error types. It is not enough to check "obj |
98 // instanceof $Error" because user code can replace | 77 // instanceof $Error" because user code can replace |
99 // NativeError.prototype.__proto__. User code cannot replace | 78 // NativeError.prototype.__proto__. User code cannot replace |
100 // NativeError.prototype though and therefore this is a safe test. | 79 // NativeError.prototype though and therefore this is a safe test. |
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123 | 102 |
124 | 103 |
125 function ToDetailString(obj) { | 104 function ToDetailString(obj) { |
126 if (obj != null && IS_OBJECT(obj) && obj.toString === $Object.prototype.toStri
ng) { | 105 if (obj != null && IS_OBJECT(obj) && obj.toString === $Object.prototype.toStri
ng) { |
127 var constructor = obj.constructor; | 106 var constructor = obj.constructor; |
128 if (!constructor) return ToStringCheckErrorObject(obj); | 107 if (!constructor) return ToStringCheckErrorObject(obj); |
129 var constructorName = constructor.name; | 108 var constructorName = constructor.name; |
130 if (!constructorName || !IS_STRING(constructorName)) { | 109 if (!constructorName || !IS_STRING(constructorName)) { |
131 return ToStringCheckErrorObject(obj); | 110 return ToStringCheckErrorObject(obj); |
132 } | 111 } |
133 return "#<" + GetInstanceName(constructorName) + ">"; | 112 return "#<" + constructorName + ">"; |
134 } else { | 113 } else { |
135 return ToStringCheckErrorObject(obj); | 114 return ToStringCheckErrorObject(obj); |
136 } | 115 } |
137 } | 116 } |
138 | 117 |
139 | 118 |
140 function MakeGenericError(constructor, type, args) { | 119 function MakeGenericError(constructor, type, args) { |
141 if (IS_UNDEFINED(args)) { | 120 if (IS_UNDEFINED(args)) { |
142 args = []; | 121 args = []; |
143 } | 122 } |
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345 */ | 324 */ |
346 Script.prototype.locationFromPosition = function (position, | 325 Script.prototype.locationFromPosition = function (position, |
347 include_resource_offset) { | 326 include_resource_offset) { |
348 var line = this.lineFromPosition(position); | 327 var line = this.lineFromPosition(position); |
349 if (line == -1) return null; | 328 if (line == -1) return null; |
350 | 329 |
351 // Determine start, end and column. | 330 // Determine start, end and column. |
352 var line_ends = this.line_ends; | 331 var line_ends = this.line_ends; |
353 var start = line == 0 ? 0 : line_ends[line - 1] + 1; | 332 var start = line == 0 ? 0 : line_ends[line - 1] + 1; |
354 var end = line_ends[line]; | 333 var end = line_ends[line]; |
355 if (end > 0 && StringCharAt.call(this.source, end - 1) == '\r') end--; | 334 if (end > 0 && %_CallFunction(this.source, end - 1, StringCharAt) == '\r') end
--; |
356 var column = position - start; | 335 var column = position - start; |
357 | 336 |
358 // Adjust according to the offset within the resource. | 337 // Adjust according to the offset within the resource. |
359 if (include_resource_offset) { | 338 if (include_resource_offset) { |
360 line += this.line_offset; | 339 line += this.line_offset; |
361 if (line == this.line_offset) { | 340 if (line == this.line_offset) { |
362 column += this.column_offset; | 341 column += this.column_offset; |
363 } | 342 } |
364 } | 343 } |
365 | 344 |
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460 | 439 |
461 // Check parameter. | 440 // Check parameter. |
462 if (line < 0 || this.lineCount() <= line) { | 441 if (line < 0 || this.lineCount() <= line) { |
463 return null; | 442 return null; |
464 } | 443 } |
465 | 444 |
466 // Return the source line. | 445 // Return the source line. |
467 var line_ends = this.line_ends; | 446 var line_ends = this.line_ends; |
468 var start = line == 0 ? 0 : line_ends[line - 1] + 1; | 447 var start = line == 0 ? 0 : line_ends[line - 1] + 1; |
469 var end = line_ends[line]; | 448 var end = line_ends[line]; |
470 return StringSubstring.call(this.source, start, end); | 449 return %_CallFunction(this.source, start, end, StringSubstring); |
471 } | 450 } |
472 | 451 |
473 | 452 |
474 /** | 453 /** |
475 * Returns the number of source lines. | 454 * Returns the number of source lines. |
476 * @return {number} | 455 * @return {number} |
477 * Number of source lines. | 456 * Number of source lines. |
478 */ | 457 */ |
479 Script.prototype.lineCount = function() { | 458 Script.prototype.lineCount = function() { |
480 // Return number of source lines. | 459 // Return number of source lines. |
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588 } | 567 } |
589 }; | 568 }; |
590 | 569 |
591 | 570 |
592 /** | 571 /** |
593 * Get the source text for a SourceLocation | 572 * Get the source text for a SourceLocation |
594 * @return {String} | 573 * @return {String} |
595 * Source text for this location. | 574 * Source text for this location. |
596 */ | 575 */ |
597 SourceLocation.prototype.sourceText = function () { | 576 SourceLocation.prototype.sourceText = function () { |
598 return StringSubstring.call(this.script.source, this.start, this.end); | 577 return %_CallFunction(this.script.source, this.start, this.end, StringSubstrin
g); |
599 }; | 578 }; |
600 | 579 |
601 | 580 |
602 /** | 581 /** |
603 * Class for a source slice. A source slice is a part of a script source with | 582 * Class for a source slice. A source slice is a part of a script source with |
604 * the following properties: | 583 * the following properties: |
605 * script : script object for the source | 584 * script : script object for the source |
606 * from_line : line number for the first line in the slice | 585 * from_line : line number for the first line in the slice |
607 * to_line : source line number for the last line in the slice | 586 * to_line : source line number for the last line in the slice |
608 * from_position : position of the first character in the slice | 587 * from_position : position of the first character in the slice |
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625 this.to_position = to_position; | 604 this.to_position = to_position; |
626 } | 605 } |
627 | 606 |
628 | 607 |
629 /** | 608 /** |
630 * Get the source text for a SourceSlice | 609 * Get the source text for a SourceSlice |
631 * @return {String} Source text for this slice. The last line will include | 610 * @return {String} Source text for this slice. The last line will include |
632 * the line terminating characters (if any) | 611 * the line terminating characters (if any) |
633 */ | 612 */ |
634 SourceSlice.prototype.sourceText = function () { | 613 SourceSlice.prototype.sourceText = function () { |
635 return StringSubstring.call(this.script.source, this.from_position, this.to_po
sition); | 614 return %_CallFunction(this.script.source, |
| 615 this.from_position, |
| 616 this.to_position, |
| 617 StringSubstring); |
636 }; | 618 }; |
637 | 619 |
638 | 620 |
639 // Returns the offset of the given position within the containing | 621 // Returns the offset of the given position within the containing |
640 // line. | 622 // line. |
641 function GetPositionInLine(message) { | 623 function GetPositionInLine(message) { |
642 var location = message.script.locationFromPosition(message.startPos, false); | 624 var location = message.script.locationFromPosition(message.startPos, false); |
643 if (location == null) return -1; | 625 if (location == null) return -1; |
644 location.restrict(); | 626 location.restrict(); |
645 return message.startPos - location.start; | 627 return message.startPos - location.start; |
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700 this.pos = pos; | 682 this.pos = pos; |
701 } | 683 } |
702 | 684 |
703 CallSite.prototype.getThis = function () { | 685 CallSite.prototype.getThis = function () { |
704 return this.receiver; | 686 return this.receiver; |
705 }; | 687 }; |
706 | 688 |
707 CallSite.prototype.getTypeName = function () { | 689 CallSite.prototype.getTypeName = function () { |
708 var constructor = this.receiver.constructor; | 690 var constructor = this.receiver.constructor; |
709 if (!constructor) | 691 if (!constructor) |
710 return $Object.prototype.toString.call(this.receiver); | 692 return %_CallFunction(this.receiver, ObjectToString); |
711 var constructorName = constructor.name; | 693 var constructorName = constructor.name; |
712 if (!constructorName) | 694 if (!constructorName) |
713 return $Object.prototype.toString.call(this.receiver); | 695 return %_CallFunction(this.receiver, ObjectToString); |
714 return constructorName; | 696 return constructorName; |
715 }; | 697 }; |
716 | 698 |
717 CallSite.prototype.isToplevel = function () { | 699 CallSite.prototype.isToplevel = function () { |
718 if (this.receiver == null) | 700 if (this.receiver == null) |
719 return true; | 701 return true; |
720 return IS_GLOBAL(this.receiver); | 702 return IS_GLOBAL(this.receiver); |
721 }; | 703 }; |
722 | 704 |
723 CallSite.prototype.isEval = function () { | 705 CallSite.prototype.isEval = function () { |
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752 if (script && script.compilation_type == COMPILATION_TYPE_EVAL) | 734 if (script && script.compilation_type == COMPILATION_TYPE_EVAL) |
753 return "eval"; | 735 return "eval"; |
754 return null; | 736 return null; |
755 }; | 737 }; |
756 | 738 |
757 CallSite.prototype.getMethodName = function () { | 739 CallSite.prototype.getMethodName = function () { |
758 // See if we can find a unique property on the receiver that holds | 740 // See if we can find a unique property on the receiver that holds |
759 // this function. | 741 // this function. |
760 var ownName = this.fun.name; | 742 var ownName = this.fun.name; |
761 if (ownName && this.receiver && | 743 if (ownName && this.receiver && |
762 (ObjectLookupGetter.call(this.receiver, ownName) === this.fun || | 744 (%_CallFunction(this.receiver, ownName, ObjectLookupGetter) === this.fun |
| |
763 ObjectLookupSetter.call(this.receiver, ownName) === this.fun || | 745 %_CallFunction(this.receiver, ownName, ObjectLookupSetter) === this.fun |
| |
764 this.receiver[ownName] === this.fun)) { | 746 this.receiver[ownName] === this.fun)) { |
765 // To handle DontEnum properties we guess that the method has | 747 // To handle DontEnum properties we guess that the method has |
766 // the same name as the function. | 748 // the same name as the function. |
767 return ownName; | 749 return ownName; |
768 } | 750 } |
769 var name = null; | 751 var name = null; |
770 for (var prop in this.receiver) { | 752 for (var prop in this.receiver) { |
771 if (this.receiver.__lookupGetter__(prop) === this.fun || | 753 if (this.receiver.__lookupGetter__(prop) === this.fun || |
772 this.receiver.__lookupSetter__(prop) === this.fun || | 754 this.receiver.__lookupSetter__(prop) === this.fun || |
773 (!this.receiver.__lookupGetter__(prop) && this.receiver[prop] === this.f
un)) { | 755 (!this.receiver.__lookupGetter__(prop) && this.receiver[prop] === this.f
un)) { |
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1081 else throw e; | 1063 else throw e; |
1082 } | 1064 } |
1083 } | 1065 } |
1084 | 1066 |
1085 %FunctionSetName(errorToString, 'toString'); | 1067 %FunctionSetName(errorToString, 'toString'); |
1086 %SetProperty($Error.prototype, 'toString', errorToString, DONT_ENUM); | 1068 %SetProperty($Error.prototype, 'toString', errorToString, DONT_ENUM); |
1087 | 1069 |
1088 // Boilerplate for exceptions for stack overflows. Used from | 1070 // Boilerplate for exceptions for stack overflows. Used from |
1089 // Top::StackOverflow(). | 1071 // Top::StackOverflow(). |
1090 const kStackOverflowBoilerplate = MakeRangeError('stack_overflow', []); | 1072 const kStackOverflowBoilerplate = MakeRangeError('stack_overflow', []); |
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