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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 |
| 11 // with the distribution. | 11 // with the distribution. |
| 12 // * Neither the name of Google Inc. nor the names of its | 12 // * Neither the name of Google Inc. nor the names of its |
| 13 // contributors may be used to endorse or promote products derived | 13 // contributors may be used to endorse or promote products derived |
| 14 // from this software without specific prior written permission. | 14 // from this software without specific prior written permission. |
| 15 // | 15 // |
| 16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | 16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | 17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | 18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | 19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | 20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | 21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | 22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | 23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | 25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | 26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 | 27 |
| 28 | 28 |
| 29 // ------------------------------------------------------------------- | 29 // ------------------------------------------------------------------- |
| 30 // |
| 31 // Matches Script::Type from objects.h |
| 32 var TYPE_NATIVE = 0; |
| 33 var TYPE_EXTENSION = 1; |
| 34 var TYPE_NORMAL = 2; |
| 35 |
| 36 // Matches Script::CompilationType from objects.h |
| 37 var COMPILATION_TYPE_HOST = 0; |
| 38 var COMPILATION_TYPE_EVAL = 1; |
| 39 var COMPILATION_TYPE_JSON = 2; |
| 30 | 40 |
| 31 // Lazily initialized. | 41 // Lazily initialized. |
| 32 var kVowelSounds = 0; | 42 var kVowelSounds = 0; |
| 33 var kCapitalVowelSounds = 0; | 43 var kCapitalVowelSounds = 0; |
| 34 | 44 |
| 35 // If this object gets passed to an error constructor the error will | 45 // If this object gets passed to an error constructor the error will |
| 36 // get an accessor for .message that constructs a descriptive error | 46 // get an accessor for .message that constructs a descriptive error |
| 37 // message on access. | 47 // message on access. |
| 38 var kAddMessageAccessorsMarker = { }; | 48 var kAddMessageAccessorsMarker = { }; |
| 39 | 49 |
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| 623 }; | 633 }; |
| 624 | 634 |
| 625 CallSite.prototype.isToplevel = function () { | 635 CallSite.prototype.isToplevel = function () { |
| 626 if (this.receiver == null) | 636 if (this.receiver == null) |
| 627 return true; | 637 return true; |
| 628 return IS_GLOBAL(this.receiver); | 638 return IS_GLOBAL(this.receiver); |
| 629 }; | 639 }; |
| 630 | 640 |
| 631 CallSite.prototype.isEval = function () { | 641 CallSite.prototype.isEval = function () { |
| 632 var script = %FunctionGetScript(this.fun); | 642 var script = %FunctionGetScript(this.fun); |
| 633 return script && script.compilation_type == 1; | 643 return script && script.compilation_type == COMPILATION_TYPE_EVAL; |
| 634 }; | 644 }; |
| 635 | 645 |
| 636 CallSite.prototype.getEvalOrigin = function () { | 646 CallSite.prototype.getEvalOrigin = function () { |
| 637 var script = %FunctionGetScript(this.fun); | 647 var script = %FunctionGetScript(this.fun); |
| 638 return FormatEvalOrigin(script); | 648 return FormatEvalOrigin(script); |
| 639 }; | 649 }; |
| 640 | 650 |
| 641 CallSite.prototype.getFunction = function () { | 651 CallSite.prototype.getFunction = function () { |
| 642 return this.fun; | 652 return this.fun; |
| 643 }; | 653 }; |
| 644 | 654 |
| 645 CallSite.prototype.getFunctionName = function () { | 655 CallSite.prototype.getFunctionName = function () { |
| 646 // See if the function knows its own name | 656 // See if the function knows its own name |
| 647 var name = this.fun.name; | 657 var name = this.fun.name; |
| 648 if (name) { | 658 if (name) { |
| 649 return name; | 659 return name; |
| 650 } else { | 660 } else { |
| 651 return %FunctionGetInferredName(this.fun); | 661 return %FunctionGetInferredName(this.fun); |
| 652 } | 662 } |
| 653 // Maybe this is an evaluation? | 663 // Maybe this is an evaluation? |
| 654 var script = %FunctionGetScript(this.fun); | 664 var script = %FunctionGetScript(this.fun); |
| 655 if (script && script.compilation_type == 1) | 665 if (script && script.compilation_type == COMPILATION_TYPE_EVAL) |
| 656 return "eval"; | 666 return "eval"; |
| 657 return null; | 667 return null; |
| 658 }; | 668 }; |
| 659 | 669 |
| 660 CallSite.prototype.getMethodName = function () { | 670 CallSite.prototype.getMethodName = function () { |
| 661 // See if we can find a unique property on the receiver that holds | 671 // See if we can find a unique property on the receiver that holds |
| 662 // this function. | 672 // this function. |
| 663 var ownName = this.fun.name; | 673 var ownName = this.fun.name; |
| 664 if (ownName && this.receiver && this.receiver[ownName] === this.fun) | 674 if (ownName && this.receiver && this.receiver[ownName] === this.fun) |
| 665 // To handle DontEnum properties we guess that the method has | 675 // To handle DontEnum properties we guess that the method has |
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| 701 var script = %FunctionGetScript(this.fun); | 711 var script = %FunctionGetScript(this.fun); |
| 702 var location = null; | 712 var location = null; |
| 703 if (script) { | 713 if (script) { |
| 704 location = script.locationFromPosition(this.pos, true); | 714 location = script.locationFromPosition(this.pos, true); |
| 705 } | 715 } |
| 706 return location ? location.column + 1: null; | 716 return location ? location.column + 1: null; |
| 707 }; | 717 }; |
| 708 | 718 |
| 709 CallSite.prototype.isNative = function () { | 719 CallSite.prototype.isNative = function () { |
| 710 var script = %FunctionGetScript(this.fun); | 720 var script = %FunctionGetScript(this.fun); |
| 711 return script ? (script.type == 0) : false; | 721 return script ? (script.type == TYPE_NATIVE) : false; |
| 712 }; | 722 }; |
| 713 | 723 |
| 714 CallSite.prototype.getPosition = function () { | 724 CallSite.prototype.getPosition = function () { |
| 715 return this.pos; | 725 return this.pos; |
| 716 }; | 726 }; |
| 717 | 727 |
| 718 CallSite.prototype.isConstructor = function () { | 728 CallSite.prototype.isConstructor = function () { |
| 719 var constructor = this.receiver ? this.receiver.constructor : null; | 729 var constructor = this.receiver ? this.receiver.constructor : null; |
| 720 if (!constructor) | 730 if (!constructor) |
| 721 return false; | 731 return false; |
| 722 return this.fun === constructor; | 732 return this.fun === constructor; |
| 723 }; | 733 }; |
| 724 | 734 |
| 725 function FormatEvalOrigin(script) { | 735 function FormatEvalOrigin(script) { |
| 726 var eval_origin = ""; | 736 var eval_origin = ""; |
| 727 if (script.eval_from_function_name) { | 737 if (script.eval_from_function_name) { |
| 728 eval_origin += script.eval_from_function_name; | 738 eval_origin += script.eval_from_function_name; |
| 729 } else { | 739 } else { |
| 730 eval_origin += "<anonymous>"; | 740 eval_origin += "<anonymous>"; |
| 731 } | 741 } |
| 732 | 742 |
| 733 var eval_from_script = script.eval_from_script; | 743 var eval_from_script = script.eval_from_script; |
| 734 if (eval_from_script) { | 744 if (eval_from_script) { |
| 735 if (eval_from_script.compilation_type == 1) { | 745 if (eval_from_script.compilation_type == COMPILATION_TYPE_EVAL) { |
| 736 // eval script originated from another eval. | 746 // eval script originated from another eval. |
| 737 eval_origin += " (eval at " + FormatEvalOrigin(eval_from_script) + ")"; | 747 eval_origin += " (eval at " + FormatEvalOrigin(eval_from_script) + ")"; |
| 738 } else { | 748 } else { |
| 739 // eval script originated from "real" scource. | 749 // eval script originated from "real" scource. |
| 740 if (eval_from_script.name) { | 750 if (eval_from_script.name) { |
| 741 eval_origin += " (" + eval_from_script.name; | 751 eval_origin += " (" + eval_from_script.name; |
| 742 var location = eval_from_script.locationFromPosition(script.eval_from_sc
ript_position, true); | 752 var location = eval_from_script.locationFromPosition(script.eval_from_sc
ript_position, true); |
| 743 if (location) { | 753 if (location) { |
| 744 eval_origin += ":" + (location.line + 1); | 754 eval_origin += ":" + (location.line + 1); |
| 745 eval_origin += ":" + (location.column + 1); | 755 eval_origin += ":" + (location.column + 1); |
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| 927 return this.name + ": " + FormatMessage({ type: type, args: this.arguments }
); | 937 return this.name + ": " + FormatMessage({ type: type, args: this.arguments }
); |
| 928 } | 938 } |
| 929 var message = this.message; | 939 var message = this.message; |
| 930 return this.name + (message ? (": " + message) : ""); | 940 return this.name + (message ? (": " + message) : ""); |
| 931 }, DONT_ENUM); | 941 }, DONT_ENUM); |
| 932 | 942 |
| 933 | 943 |
| 934 // Boilerplate for exceptions for stack overflows. Used from | 944 // Boilerplate for exceptions for stack overflows. Used from |
| 935 // Top::StackOverflow(). | 945 // Top::StackOverflow(). |
| 936 const kStackOverflowBoilerplate = MakeRangeError('stack_overflow', []); | 946 const kStackOverflowBoilerplate = MakeRangeError('stack_overflow', []); |
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