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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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32 // ALL CAPS. The compiled code passes the first argument in 'this' and | 32 // ALL CAPS. The compiled code passes the first argument in 'this' and |
33 // it does not push the function onto the stack. This means that you | 33 // it does not push the function onto the stack. This means that you |
34 // cannot use contexts in all these functions. | 34 // cannot use contexts in all these functions. |
35 | 35 |
36 | 36 |
37 /* ----------------------------------- | 37 /* ----------------------------------- |
38 - - - C o m p a r i s o n - - - | 38 - - - C o m p a r i s o n - - - |
39 ----------------------------------- | 39 ----------------------------------- |
40 */ | 40 */ |
41 | 41 |
42 // The following const declarations are shared with other native JS files. | 42 // The following declarations are shared with other native JS files. |
43 // They are all declared at this one spot to avoid const redeclaration errors. | 43 // They are all declared at this one spot to avoid redeclaration errors. |
44 const $Object = global.Object; | 44 var $Object = global.Object; |
45 const $Array = global.Array; | 45 var $Array = global.Array; |
46 const $String = global.String; | 46 var $String = global.String; |
47 const $Number = global.Number; | 47 var $Number = global.Number; |
48 const $Function = global.Function; | 48 var $Function = global.Function; |
49 const $Boolean = global.Boolean; | 49 var $Boolean = global.Boolean; |
50 const $NaN = 0/0; | 50 var $NaN = 0/0; |
51 const builtins = this; | 51 var builtins = this; |
52 | 52 |
53 // ECMA-262 Section 11.9.3. | 53 // ECMA-262 Section 11.9.3. |
54 function EQUALS(y) { | 54 function EQUALS(y) { |
55 if (IS_STRING(this) && IS_STRING(y)) return %StringEquals(this, y); | 55 if (IS_STRING(this) && IS_STRING(y)) return %StringEquals(this, y); |
56 var x = this; | 56 var x = this; |
57 | 57 |
58 while (true) { | 58 while (true) { |
59 if (IS_NUMBER(x)) { | 59 if (IS_NUMBER(x)) { |
60 while (true) { | 60 while (true) { |
61 if (IS_NUMBER(y)) return %NumberEquals(x, y); | 61 if (IS_NUMBER(y)) return %NumberEquals(x, y); |
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658 throw %MakeTypeError('cannot_convert_to_primitive', []); | 658 throw %MakeTypeError('cannot_convert_to_primitive', []); |
659 } | 659 } |
660 | 660 |
661 | 661 |
662 // NOTE: Setting the prototype for Array must take place as early as | 662 // NOTE: Setting the prototype for Array must take place as early as |
663 // possible due to code generation for array literals. When | 663 // possible due to code generation for array literals. When |
664 // generating code for a array literal a boilerplate array is created | 664 // generating code for a array literal a boilerplate array is created |
665 // that is cloned when running the code. It is essential that the | 665 // that is cloned when running the code. It is essential that the |
666 // boilerplate gets the right prototype. | 666 // boilerplate gets the right prototype. |
667 %FunctionSetPrototype($Array, new $Array(0)); | 667 %FunctionSetPrototype($Array, new $Array(0)); |
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