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js/src/tests/ecma/extensions/15.5.4.5-6.js@b8a032363ba2 (annotated)

js/src/tests/ecma/extensions/15.5.4.5-6.js

Thu, 22 Jan 2015 13:21:57 +0100

author

Michael Schloh von Bennewitz <michael@schloh.com>

date

Thu, 22 Jan 2015 13:21:57 +0100

branch

TOR_BUG_9701

changeset 15

b8a032363ba2

permissions

-rw-r--r--

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

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: 15.5.4.5-6.js
michael@0	9	ECMA Section: 15.5.4.5 String.prototype.charCodeAt(pos)
michael@0	10	Description: Returns a number (a nonnegative integer less than 2^16)
michael@0	11	representing the Unicode encoding of the character at
michael@0	12	position pos in this string. If there is no character
michael@0	13	at that position, the number is NaN.
michael@0	14
michael@0	15	When the charCodeAt method is called with one argument
michael@0	16	pos, the following steps are taken:
michael@0	17	1. Call ToString, giving it the theis value as its
michael@0	18	argument
michael@0	19	2. Call ToInteger(pos)
michael@0	20	3. Compute the number of characters in result(1).
michael@0	21	4. If Result(2) is less than 0 or is not less than
michael@0	22	Result(3), return NaN.
michael@0	23	5. Return a value of Number type, of positive sign, whose
michael@0	24	magnitude is the Unicode encoding of one character
michael@0	25	from result 1, namely the characer at position Result
michael@0	26	(2), where the first character in Result(1) is
michael@0	27	considered to be at position 0.
michael@0	28
michael@0	29	Note that the charCodeAt function is intentionally
michael@0	30	generic; it does not require that its this value be a
michael@0	31	String object. Therefore it can be transferred to other
michael@0	32	kinds of objects for use as a method.
michael@0	33
michael@0	34	Author: christine@netscape.com
michael@0	35	Date: 2 october 1997
michael@0	36	*/
michael@0	37	var SECTION = "15.5.4.5-6";
michael@0	38	var VERSION = "ECMA_2";
michael@0	39	startTest();
michael@0	40	var TITLE = "String.prototype.charCodeAt";
michael@0	41
michael@0	42	writeHeaderToLog( SECTION + " "+ TITLE);
michael@0	43
michael@0	44
michael@0	45	new TestCase( SECTION,
michael@0	46	"var obj = true; obj.__proto__.charCodeAt = String.prototype.charCodeAt; var s = ''; for ( var i = 0; i < 4; i++ ) s+= String.fromCharCode( obj.charCodeAt(i) ); s",
michael@0	47	"true",
michael@0	48	eval("var obj = true; obj.__proto__.charCodeAt = String.prototype.charCodeAt; var s = ''; for ( var i = 0; i < 4; i++ ) s+= String.fromCharCode( obj.charCodeAt(i) ); s") );
michael@0	49
michael@0	50	new TestCase( SECTION,
michael@0	51	"var obj = 1234; obj.__proto__.charCodeAt = String.prototype.charCodeAt; var s = ''; for ( var i = 0; i < 4; i++ ) s+= String.fromCharCode( obj.charCodeAt(i) ); s",
michael@0	52	"1234",
michael@0	53	eval("var obj = 1234; obj.__proto__.charCodeAt = String.prototype.charCodeAt; var s = ''; for ( var i = 0; i < 4; i++ ) s+= String.fromCharCode( obj.charCodeAt(i) ); s") );
michael@0	54
michael@0	55	new TestCase( SECTION,
michael@0	56	"var obj = 'hello'; obj.__proto__.charCodeAt = String.prototype.charCodeAt; var s = ''; for ( var i = 0; i < 5; i++ ) s+= String.fromCharCode( obj.charCodeAt(i) ); s",
michael@0	57	"hello",
michael@0	58	eval("var obj = 'hello'; obj.__proto__.charCodeAt = String.prototype.charCodeAt; var s = ''; for ( var i = 0; i < 5; i++ ) s+= String.fromCharCode( obj.charCodeAt(i) ); s") );
michael@0	59
michael@0	60	test();