js/src/tests/ecma/Array/15.4.1.1.js@6474c204b198 (annotated)
js/src/tests/ecma/Array/15.4.1.1.js
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- permissions
- -rw-r--r--
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
| michael@0 | 1 | /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ |
| michael@0 | 2 | /* This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 3 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
| michael@0 | 4 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| michael@0 | 5 | |
| michael@0 | 6 | |
| michael@0 | 7 | /** |
| michael@0 | 8 | File Name: 15.4.1.1.js |
| michael@0 | 9 | ECMA Section: 15.4.1 Array( item0, item1,... ) |
| michael@0 | 10 | |
| michael@0 | 11 | Description: When Array is called as a function rather than as a |
| michael@0 | 12 | constructor, it creates and initializes a new array |
| michael@0 | 13 | object. Thus, the function call Array(...) is |
| michael@0 | 14 | equivalent to the object creation new Array(...) with |
| michael@0 | 15 | the same arguments. |
| michael@0 | 16 | |
| michael@0 | 17 | An array is created and returned as if by the expression |
| michael@0 | 18 | new Array( item0, item1, ... ). |
| michael@0 | 19 | |
| michael@0 | 20 | Author: christine@netscape.com |
| michael@0 | 21 | Date: 7 october 1997 |
| michael@0 | 22 | */ |
| michael@0 | 23 | var SECTION = "15.4.1.1"; |
| michael@0 | 24 | var VERSION = "ECMA_1"; |
| michael@0 | 25 | startTest(); |
| michael@0 | 26 | var TITLE = "Array Constructor Called as a Function"; |
| michael@0 | 27 | |
| michael@0 | 28 | writeHeaderToLog( SECTION + " "+ TITLE); |
| michael@0 | 29 | |
| michael@0 | 30 | new TestCase( SECTION, |
| michael@0 | 31 | "typeof Array(1,2)", |
| michael@0 | 32 | "object", |
| michael@0 | 33 | typeof Array(1,2) ); |
| michael@0 | 34 | |
| michael@0 | 35 | new TestCase( SECTION, |
| michael@0 | 36 | "(Array(1,2)).toString", |
| michael@0 | 37 | Array.prototype.toString, |
| michael@0 | 38 | (Array(1,2)).toString ); |
| michael@0 | 39 | |
| michael@0 | 40 | new TestCase( SECTION, |
| michael@0 | 41 | "var arr = Array(1,2,3); arr.toString = Object.prototype.toString; arr.toString()", |
| michael@0 | 42 | "[object Array]", |
| michael@0 | 43 | eval("var arr = Array(1,2,3); arr.toString = Object.prototype.toString; arr.toString()") ); |
| michael@0 | 44 | |
| michael@0 | 45 | new TestCase( SECTION, |
| michael@0 | 46 | "(Array(1,2)).length", |
| michael@0 | 47 | 2, |
| michael@0 | 48 | (Array(1,2)).length ); |
| michael@0 | 49 | |
| michael@0 | 50 | new TestCase( SECTION, |
| michael@0 | 51 | "var arr = (Array(1,2)); arr[0]", |
| michael@0 | 52 | 1, |
| michael@0 | 53 | eval("var arr = (Array(1,2)); arr[0]") ); |
| michael@0 | 54 | |
| michael@0 | 55 | new TestCase( SECTION, |
| michael@0 | 56 | "var arr = (Array(1,2)); arr[1]", |
| michael@0 | 57 | 2, |
| michael@0 | 58 | eval("var arr = (Array(1,2)); arr[1]") ); |
| michael@0 | 59 | |
| michael@0 | 60 | new TestCase( SECTION, |
| michael@0 | 61 | "var arr = (Array(1,2)); String(arr)", |
| michael@0 | 62 | "1,2", |
| michael@0 | 63 | eval("var arr = (Array(1,2)); String(arr)") ); |
| michael@0 | 64 | |
| michael@0 | 65 | test(); |
| michael@0 | 66 | |
| michael@0 | 67 | function ToUint32( n ) { |
| michael@0 | 68 | n = Number( n ); |
| michael@0 | 69 | if( isNaN(n) || n == 0 || n == Number.POSITIVE_INFINITY || |
| michael@0 | 70 | n == Number.NEGATIVE_INFINITY ) { |
| michael@0 | 71 | return 0; |
| michael@0 | 72 | } |
| michael@0 | 73 | var sign = n < 0 ? -1 : 1; |
| michael@0 | 74 | |
| michael@0 | 75 | return ( sign * ( n * Math.floor( Math.abs(n) ) ) ) % Math.pow(2, 32); |
| michael@0 | 76 | } |
| michael@0 | 77 |
