Ben Murdoch | 257744e | 2011-11-30 15:57:28 +0000 | [diff] [blame] | 1 | // Copyright 2011 the V8 project authors. All rights reserved. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2 | // Redistribution and use in source and binary forms, with or without |
| 3 | // modification, are permitted provided that the following conditions are |
| 4 | // met: |
| 5 | // |
| 6 | // * Redistributions of source code must retain the above copyright |
| 7 | // notice, this list of conditions and the following disclaimer. |
| 8 | // * Redistributions in binary form must reproduce the above |
| 9 | // copyright notice, this list of conditions and the following |
| 10 | // disclaimer in the documentation and/or other materials provided |
| 11 | // with the distribution. |
| 12 | // * Neither the name of Google Inc. nor the names of its |
| 13 | // contributors may be used to endorse or promote products derived |
| 14 | // from this software without specific prior written permission. |
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| 16 | // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame^] | 28 | // Test that the caller and arguments objects are not available on native |
| 29 | // functions. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 30 | |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame^] | 31 | function testfn(f) { return [1].map(f)[0]; } |
| 32 | function foo() { return [].map.caller; } |
| 33 | assertEquals(null, testfn(foo)); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 34 | |
Ben Murdoch | 589d697 | 2011-11-30 16:04:58 +0000 | [diff] [blame^] | 35 | // Try to delete the caller property (to make sure that we can't get to the |
| 36 | // caller accessor on the prototype. |
| 37 | delete Array.prototype.map.caller; |
| 38 | assertEquals(null, testfn(foo)); |
| 39 | |
| 40 | // Redo tests with arguments object. |
| 41 | function testarguments(f) { return [1].map(f)[0]; } |
| 42 | function bar() { return [].map.arguments; } |
| 43 | assertEquals(null, testfn(bar)); |
| 44 | |
| 45 | // Try to delete the arguments property (to make sure that we can't get to the |
| 46 | // caller accessor on the prototype. |
| 47 | delete Array.prototype.map.arguments; |
| 48 | assertEquals(null, testarguments(bar)); |