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1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ |
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2 /* This Source Code Form is subject to the terms of the Mozilla Public |
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3 * License, v. 2.0. If a copy of the MPL was not distributed with this |
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4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
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5 |
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6 |
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7 /** |
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8 File Name: 15.3.5-1.js |
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9 ECMA Section: 15.3.5 Properties of Function Instances |
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10 new Function(p1, p2, ..., pn, body ) |
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11 |
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12 Description: |
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13 |
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14 15.3.5.1 length |
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15 |
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16 The value of the length property is usually an integer that indicates |
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17 the "typical" number of arguments expected by the function. However, |
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18 the language permits the function to be invoked with some other number |
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19 of arguments. The behavior of a function when invoked on a number of |
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20 arguments other than the number specified by its length property depends |
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21 on the function. |
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22 |
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23 15.3.5.2 prototype |
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24 The value of the prototype property is used to initialize the internal [[ |
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25 Prototype]] property of a newly created object before the Function object |
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26 is invoked as a constructor for that newly created object. |
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27 |
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28 15.3.5.3 arguments |
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29 |
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30 The value of the arguments property is normally null if there is no |
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31 outstanding invocation of the function in progress (that is, the function has been called |
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32 but has not yet returned). When a non-internal Function object (15.3.2.1) is invoked, its |
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33 arguments property is "dynamically bound" to a newly created object that contains the |
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34 arguments on which it was invoked (see 10.1.6 and 10.1.8). Note that the use of this |
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35 property is discouraged; it is provided principally for compatibility with existing old code. |
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36 |
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37 Author: christine@netscape.com |
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38 Date: 28 october 1997 |
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39 |
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40 */ |
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41 |
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42 var SECTION = "15.3.5-2"; |
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43 var VERSION = "ECMA_1"; |
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44 startTest(); |
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45 var TITLE = "Properties of Function Instances"; |
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46 |
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47 writeHeaderToLog( SECTION + " "+TITLE); |
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48 |
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49 var MyObject = new Function( 'a', 'b', 'c', 'this.a = a; this.b = b; this.c = c; this.value = a+b+c; this.valueOf = new Function( "return this.value" )' ); |
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50 |
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51 new TestCase( SECTION, "MyObject.length", 3, MyObject.length ); |
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52 new TestCase( SECTION, "typeof MyObject.prototype", "object", typeof MyObject.prototype ); |
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53 new TestCase( SECTION, "typeof MyObject.prototype.constructor", "function", typeof MyObject.prototype.constructor ); |
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54 new TestCase( SECTION, "MyObject.arguments", null, MyObject.arguments ); |
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55 |
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56 test(); |