1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000 1.2 +++ b/js/src/tests/ecma/ExecutionContexts/10.1.8-2.js Wed Dec 31 06:09:35 2014 +0100 1.3 @@ -0,0 +1,86 @@ 1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ 1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public 1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this 1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ 1.8 + 1.9 + 1.10 +/** 1.11 + File Name: 10.1.8-2 1.12 + ECMA Section: Arguments Object 1.13 + Description: 1.14 + 1.15 + When control enters an execution context for declared function code, 1.16 + anonymous code, or implementation-supplied code, an arguments object is 1.17 + created and initialized as follows: 1.18 + 1.19 + The [[Prototype]] of the arguments object is to the original Object 1.20 + prototype object, the one that is the initial value of Object.prototype 1.21 + (section 15.2.3.1). 1.22 + 1.23 + A property is created with name callee and property attributes {DontEnum}. 1.24 + The initial value of this property is the function object being executed. 1.25 + This allows anonymous functions to be recursive. 1.26 + 1.27 + A property is created with name length and property attributes {DontEnum}. 1.28 + The initial value of this property is the number of actual parameter values 1.29 + supplied by the caller. 1.30 + 1.31 + For each non-negative integer, iarg, less than the value of the length 1.32 + property, a property is created with name ToString(iarg) and property 1.33 + attributes { DontEnum }. The initial value of this property is the value 1.34 + of the corresponding actual parameter supplied by the caller. The first 1.35 + actual parameter value corresponds to iarg = 0, the second to iarg = 1 and 1.36 + so on. In the case when iarg is less than the number of formal parameters 1.37 + for the function object, this property shares its value with the 1.38 + corresponding property of the activation object. This means that changing 1.39 + this property changes the corresponding property of the activation object 1.40 + and vice versa. The value sharing mechanism depends on the implementation. 1.41 + 1.42 + Author: christine@netscape.com 1.43 + Date: 12 november 1997 1.44 +*/ 1.45 + 1.46 +var SECTION = "10.1.8-2"; 1.47 +var VERSION = "ECMA_1"; 1.48 +startTest(); 1.49 +var TITLE = "Arguments Object"; 1.50 + 1.51 +writeHeaderToLog( SECTION + " "+ TITLE); 1.52 + 1.53 +// Tests for anonymous functions 1.54 + 1.55 +var GetCallee = new Function( "var c = arguments.callee; return c" ); 1.56 +var GetArguments = new Function( "var a = arguments; return a" ); 1.57 +var GetLength = new Function( "var l = arguments.length; return l" ); 1.58 + 1.59 +var ARG_STRING = "value of the argument property"; 1.60 + 1.61 +new TestCase( SECTION, 1.62 + "GetCallee()", 1.63 + GetCallee, 1.64 + GetCallee() ); 1.65 + 1.66 +var LIMIT = 100; 1.67 + 1.68 +for ( var i = 0, args = "" ; i < LIMIT; i++ ) { 1.69 + args += String(i) + ( i+1 < LIMIT ? "," : "" ); 1.70 + 1.71 +} 1.72 + 1.73 +var LENGTH = eval( "GetLength("+ args +")" ); 1.74 + 1.75 +new TestCase( SECTION, 1.76 + "GetLength("+args+")", 1.77 + 100, 1.78 + LENGTH ); 1.79 + 1.80 +var ARGUMENTS = eval( "GetArguments( " +args+")" ); 1.81 + 1.82 +for ( var i = 0; i < 100; i++ ) { 1.83 + new TestCase( SECTION, 1.84 + "GetArguments("+args+")["+i+"]", 1.85 + i, 1.86 + ARGUMENTS[i] ); 1.87 +} 1.88 + 1.89 +test();