michael@0: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: 
michael@0: /**
michael@0:    File Name:          15.5.4.5-6.js
michael@0:    ECMA Section:       15.5.4.5 String.prototype.charCodeAt(pos)
michael@0:    Description:        Returns a number (a nonnegative integer less than 2^16)
michael@0:    representing the Unicode encoding of the character at
michael@0:    position pos in this string.  If there is no character
michael@0:    at that position, the number is NaN.
michael@0: 
michael@0:    When the charCodeAt method is called with one argument
michael@0:    pos, the following steps are taken:
michael@0:    1. Call ToString, giving it the theis value as its
michael@0:    argument
michael@0:    2. Call ToInteger(pos)
michael@0:    3. Compute the number of characters in result(1).
michael@0:    4. If Result(2) is less than 0 or is not less than
michael@0:    Result(3), return NaN.
michael@0:    5. Return a value of Number type, of positive sign, whose
michael@0:    magnitude is the Unicode encoding of one character
michael@0:    from result 1, namely the characer at position Result
michael@0:    (2), where the first character in Result(1) is
michael@0:    considered to be at position 0.
michael@0: 
michael@0:    Note that the charCodeAt function is intentionally
michael@0:    generic; it does not require that its this value be a
michael@0:    String object.  Therefore it can be transferred to other
michael@0:    kinds of objects for use as a method.
michael@0: 
michael@0:    Author:             christine@netscape.com
michael@0:    Date:               2 october 1997
michael@0: */
michael@0: var SECTION = "15.5.4.5-6";
michael@0: var VERSION = "ECMA_2";
michael@0: startTest();
michael@0: var TITLE   = "String.prototype.charCodeAt";
michael@0: 
michael@0: writeHeaderToLog( SECTION + " "+ TITLE);
michael@0: 
michael@0: 
michael@0: new TestCase( SECTION,
michael@0: 	      "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: 	      "true",
michael@0: 	      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: 
michael@0: new TestCase( SECTION,
michael@0: 	      "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: 	      "1234",
michael@0: 	      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: 
michael@0: new TestCase( SECTION,
michael@0: 	      "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: 	      "hello",
michael@0: 	      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: 
michael@0: test();