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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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525 * @return {number} | 525 * @return {number} |
526 * Number of source lines. | 526 * Number of source lines. |
527 */ | 527 */ |
528 function ScriptLineCount() { | 528 function ScriptLineCount() { |
529 // Return number of source lines. | 529 // Return number of source lines. |
530 return this.line_ends.length; | 530 return this.line_ends.length; |
531 } | 531 } |
532 | 532 |
533 | 533 |
534 /** | 534 /** |
535 * Returns the name of script if available, contents of sourceURL comment | 535 * If sourceURL comment is available and script starts at zero returns sourceURL |
536 * otherwise. See | 536 * comment contents. Otherwise, script name is returned. See |
537 * http://fbug.googlecode.com/svn/branches/firebug1.1/docs/ReleaseNotes_1.1.txt | 537 * http://fbug.googlecode.com/svn/branches/firebug1.1/docs/ReleaseNotes_1.1.txt |
538 * for details on using //@ sourceURL comment to identify scritps that don't | 538 * for details on using //@ sourceURL comment to identify scritps that don't |
539 * have name. | 539 * have name. |
540 * | 540 * |
541 * @return {?string} script name if present, value for //@ sourceURL comment | 541 * @return {?string} script name if present, value for //@ sourceURL comment |
542 * otherwise. | 542 * otherwise. |
543 */ | 543 */ |
544 function ScriptNameOrSourceURL() { | 544 function ScriptNameOrSourceURL() { |
545 if (this.name) { | 545 if (this.line_offset > 0 || this.column_offset > 0) { |
546 return this.name; | 546 return this.name; |
547 } | 547 } |
548 | 548 |
549 // The result is cached as on long scripts it takes noticable time to search | 549 // The result is cached as on long scripts it takes noticable time to search |
550 // for the sourceURL. | 550 // for the sourceURL. |
551 if (this.hasCachedNameOrSourceURL) | 551 if (this.hasCachedNameOrSourceURL) { |
552 return this.cachedNameOrSourceURL; | 552 return this.cachedNameOrSourceURL; |
| 553 } |
553 this.hasCachedNameOrSourceURL = true; | 554 this.hasCachedNameOrSourceURL = true; |
554 | 555 |
555 // TODO(608): the spaces in a regexp below had to be escaped as \040 | 556 // TODO(608): the spaces in a regexp below had to be escaped as \040 |
556 // because this file is being processed by js2c whose handling of spaces | 557 // because this file is being processed by js2c whose handling of spaces |
557 // in regexps is broken. Also, ['"] are excluded from allowed URLs to | 558 // in regexps is broken. Also, ['"] are excluded from allowed URLs to |
558 // avoid matches against sources that invoke evals with sourceURL. | 559 // avoid matches against sources that invoke evals with sourceURL. |
559 // A better solution would be to detect these special comments in | 560 // A better solution would be to detect these special comments in |
560 // the scanner/parser. | 561 // the scanner/parser. |
561 var source = ToString(this.source); | 562 var source = ToString(this.source); |
562 var sourceUrlPos = %StringIndexOf(source, "sourceURL=", 0); | 563 var sourceUrlPos = %StringIndexOf(source, "sourceURL=", 0); |
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1260 throw e; | 1261 throw e; |
1261 } | 1262 } |
1262 } | 1263 } |
1263 | 1264 |
1264 | 1265 |
1265 InstallFunctions($Error.prototype, DONT_ENUM, ['toString', ErrorToString]); | 1266 InstallFunctions($Error.prototype, DONT_ENUM, ['toString', ErrorToString]); |
1266 | 1267 |
1267 // Boilerplate for exceptions for stack overflows. Used from | 1268 // Boilerplate for exceptions for stack overflows. Used from |
1268 // Isolate::StackOverflow(). | 1269 // Isolate::StackOverflow(). |
1269 var kStackOverflowBoilerplate = MakeRangeError('stack_overflow', []); | 1270 var kStackOverflowBoilerplate = MakeRangeError('stack_overflow', []); |
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