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| 1 // Copyright 2009 the V8 project authors. All rights reserved. | 1 // Copyright 2009 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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| 31 // builtin functions that use or return "this". | 31 // builtin functions that use or return "this". |
| 32 | 32 |
| 33 var global = this; | 33 var global = this; |
| 34 var global2 = (function(){return this;})(); | 34 var global2 = (function(){return this;})(); |
| 35 assertEquals(global, global2, "direct call to local function returns global"); | 35 assertEquals(global, global2, "direct call to local function returns global"); |
| 36 | 36 |
| 37 var builtin = Object.prototype.valueOf; // Builtin function that returns this. | 37 var builtin = Object.prototype.valueOf; // Builtin function that returns this. |
| 38 | 38 |
| 39 assertEquals(global, builtin(), "Direct call to builtin"); | 39 assertEquals(global, builtin(), "Direct call to builtin"); |
| 40 | 40 |
| 41 assertEquals(global, builtin.call(), "call() to builtin"); | |
| 42 assertEquals(global, builtin.call(null), "call(null) to builtin"); | |
| 43 assertEquals(global, builtin.call(undefined), "call(undefined) to builtin"); | |
| 44 | |
| 45 assertEquals(global, builtin.apply(), "apply() to builtin"); | |
| 46 assertEquals(global, builtin.apply(null), "apply(null) to builtin"); | |
| 47 assertEquals(global, builtin.apply(undefined), "apply(undefined) to builtin"); | |
| 48 | |
| 49 assertEquals(global, builtin.call.call(builtin), "call.call() to builtin"); | |
| 50 assertEquals(global, builtin.call.apply(builtin), "call.apply() to builtin"); | |
| 51 assertEquals(global, builtin.apply.call(builtin), "apply.call() to builtin"); | |
| 52 assertEquals(global, builtin.apply.apply(builtin), "apply.apply() to builtin"); | |
| 53 | |
| 54 | 41 |
| 55 // Builtin that depends on value of this to compute result. | 42 // Builtin that depends on value of this to compute result. |
| 56 var builtin2 = Object.prototype.toString; | 43 var builtin2 = Object.prototype.toString; |
| 57 | 44 |
| 58 // Global object has class "Object" according to Object.prototype.toString. | 45 // Global object has class "Object" according to Object.prototype.toString. |
| 59 // Builtins object displays as "[object builtins]". | 46 // Builtins object displays as "[object builtins]". |
| 60 assertTrue("[object builtins]" != builtin2(), "Direct call to toString"); | 47 assertTrue("[object builtins]" != builtin2(), "Direct call to toString"); |
| 61 assertTrue("[object builtins]" != builtin2.call(), "call() to toString"); | 48 assertTrue("[object builtins]" != builtin2.call(), "call() to toString"); |
| 62 assertTrue("[object builtins]" != builtin2.apply(), "call() to toString"); | 49 assertTrue("[object builtins]" != builtin2.apply(), "call() to toString"); |
| 63 assertTrue("[object builtins]" != builtin2.call.call(builtin2), | 50 assertTrue("[object builtins]" != builtin2.call.call(builtin2), |
| 64 "call.call() to toString"); | 51 "call.call() to toString"); |
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