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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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49 function InstallFunctions(object, attributes, functions) { | 49 function InstallFunctions(object, attributes, functions) { |
50 if (functions.length >= 8) { | 50 if (functions.length >= 8) { |
51 %OptimizeObjectForAddingMultipleProperties(object, functions.length >> 1); | 51 %OptimizeObjectForAddingMultipleProperties(object, functions.length >> 1); |
52 } | 52 } |
53 for (var i = 0; i < functions.length; i += 2) { | 53 for (var i = 0; i < functions.length; i += 2) { |
54 var key = functions[i]; | 54 var key = functions[i]; |
55 var f = functions[i + 1]; | 55 var f = functions[i + 1]; |
56 %FunctionSetName(f, key); | 56 %FunctionSetName(f, key); |
57 %SetProperty(object, key, f, attributes); | 57 %SetProperty(object, key, f, attributes); |
58 } | 58 } |
59 %TransformToFastProperties(object); | 59 %ToFastProperties(object); |
60 } | 60 } |
61 | 61 |
62 // Emulates JSC by installing functions on a hidden prototype that | 62 // Emulates JSC by installing functions on a hidden prototype that |
63 // lies above the current object/prototype. This lets you override | 63 // lies above the current object/prototype. This lets you override |
64 // functions on String.prototype etc. and then restore the old function | 64 // functions on String.prototype etc. and then restore the old function |
65 // with delete. See http://code.google.com/p/chromium/issues/detail?id=1717 | 65 // with delete. See http://code.google.com/p/chromium/issues/detail?id=1717 |
66 function InstallFunctionsOnHiddenPrototype(object, attributes, functions) { | 66 function InstallFunctionsOnHiddenPrototype(object, attributes, functions) { |
67 var hidden_prototype = new $Object(); | 67 var hidden_prototype = new $Object(); |
68 %SetHiddenPrototype(object, hidden_prototype); | 68 %SetHiddenPrototype(object, hidden_prototype); |
69 InstallFunctions(hidden_prototype, attributes, functions); | 69 InstallFunctions(hidden_prototype, attributes, functions); |
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907 %SetProperty($Number, | 907 %SetProperty($Number, |
908 "NEGATIVE_INFINITY", | 908 "NEGATIVE_INFINITY", |
909 -1/0, | 909 -1/0, |
910 DONT_ENUM | DONT_DELETE | READ_ONLY); | 910 DONT_ENUM | DONT_DELETE | READ_ONLY); |
911 | 911 |
912 // ECMA-262 section 15.7.3.5. | 912 // ECMA-262 section 15.7.3.5. |
913 %SetProperty($Number, | 913 %SetProperty($Number, |
914 "POSITIVE_INFINITY", | 914 "POSITIVE_INFINITY", |
915 1/0, | 915 1/0, |
916 DONT_ENUM | DONT_DELETE | READ_ONLY); | 916 DONT_ENUM | DONT_DELETE | READ_ONLY); |
917 %TransformToFastProperties($Number); | 917 %ToFastProperties($Number); |
918 | 918 |
919 // Setup non-enumerable functions on the Number prototype object. | 919 // Setup non-enumerable functions on the Number prototype object. |
920 InstallFunctions($Number.prototype, DONT_ENUM, $Array( | 920 InstallFunctions($Number.prototype, DONT_ENUM, $Array( |
921 "toString", NumberToString, | 921 "toString", NumberToString, |
922 "toLocaleString", NumberToLocaleString, | 922 "toLocaleString", NumberToLocaleString, |
923 "valueOf", NumberValueOf, | 923 "valueOf", NumberValueOf, |
924 "toFixed", NumberToFixed, | 924 "toFixed", NumberToFixed, |
925 "toExponential", NumberToExponential, | 925 "toExponential", NumberToExponential, |
926 "toPrecision", NumberToPrecision, | 926 "toPrecision", NumberToPrecision, |
927 "toJSON", NumberToJSON | 927 "toJSON", NumberToJSON |
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992 | 992 |
993 // ---------------------------------------------------------------------------- | 993 // ---------------------------------------------------------------------------- |
994 | 994 |
995 function SetupFunction() { | 995 function SetupFunction() { |
996 InstallFunctions($Function.prototype, DONT_ENUM, $Array( | 996 InstallFunctions($Function.prototype, DONT_ENUM, $Array( |
997 "toString", FunctionToString | 997 "toString", FunctionToString |
998 )); | 998 )); |
999 } | 999 } |
1000 | 1000 |
1001 SetupFunction(); | 1001 SetupFunction(); |
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