The Tor Browser / file comparison
comparison: js/src/tests/js1_4/Functions/function-001.js
js/src/tests/js1_4/Functions/function-001.js
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
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| -1:000000000000 | 0:ea2f14f52cc1 |
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| 1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ | |
| 2 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 | |
| 6 | |
| 7 /** | |
| 8 * File Name: function-001.js | |
| 9 * Description: | |
| 10 * | |
| 11 * http://scopus.mcom.com/bugsplat/show_bug.cgi?id=324455 | |
| 12 * | |
| 13 * Earlier versions of JavaScript supported access to the arguments property | |
| 14 * of the function object. This property held the arguments to the function. | |
| 15 * function f() { | |
| 16 * return f.arguments[0]; // deprecated | |
| 17 * } | |
| 18 * var x = f(3); // x will be 3 | |
| 19 * | |
| 20 * This feature is not a part of the final ECMA standard. Instead, scripts | |
| 21 * should simply use just "arguments": | |
| 22 * | |
| 23 * function f() { | |
| 24 * return arguments[0]; // okay | |
| 25 * } | |
| 26 * | |
| 27 * var x = f(3); // x will be 3 | |
| 28 * | |
| 29 * Again, this feature was motivated by performance concerns. Access to the | |
| 30 * arguments property is not threadsafe, which is of particular concern in | |
| 31 * server environments. Also, the compiler can generate better code for | |
| 32 * functions because it can tell when the arguments are being accessed only by | |
| 33 * name and avoid setting up the arguments object. | |
| 34 * | |
| 35 * Author: christine@netscape.com | |
| 36 * Date: 11 August 1998 | |
| 37 */ | |
| 38 var SECTION = "function-001.js"; | |
| 39 var VERSION = "JS1_4"; | |
| 40 var TITLE = "Accessing the arguments property of a function object"; | |
| 41 var BUGNUMBER="324455"; | |
| 42 startTest(); | |
| 43 writeHeaderToLog( SECTION + " "+ TITLE); | |
| 44 | |
| 45 new TestCase( | |
| 46 SECTION, | |
| 47 "return function.arguments", | |
| 48 "P", | |
| 49 TestFunction_2("P", "A","S","S")[0] +""); | |
| 50 | |
| 51 | |
| 52 new TestCase( | |
| 53 SECTION, | |
| 54 "return arguments", | |
| 55 "P", | |
| 56 TestFunction_1( "P", "A", "S", "S" )[0] +""); | |
| 57 | |
| 58 new TestCase( | |
| 59 SECTION, | |
| 60 "return arguments when function contains an arguments property", | |
| 61 "PASS", | |
| 62 TestFunction_3( "P", "A", "S", "S" ) +""); | |
| 63 | |
| 64 new TestCase( | |
| 65 SECTION, | |
| 66 "return function.arguments when function contains an arguments property", | |
| 67 "[object Arguments]", | |
| 68 TestFunction_4( "F", "A", "I", "L" ) +""); | |
| 69 | |
| 70 test(); | |
| 71 | |
| 72 function TestFunction_1( a, b, c, d, e ) { | |
| 73 return arguments; | |
| 74 } | |
| 75 | |
| 76 function TestFunction_2( a, b, c, d, e ) { | |
| 77 return TestFunction_2.arguments; | |
| 78 } | |
| 79 | |
| 80 function TestFunction_3( a, b, c, d, e ) { | |
| 81 var arguments = "PASS"; | |
| 82 return arguments; | |
| 83 } | |
| 84 | |
| 85 function TestFunction_4( a, b, c, d, e ) { | |
| 86 var arguments = "FAIL"; | |
| 87 return TestFunction_4.arguments; | |
| 88 } | |
| 89 |
