/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */ /* This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ /* * * Date: 03 June 2002 * SUMMARY: Function param or local var with same name as a function property * * See http://bugzilla.mozilla.org/show_bug.cgi?id=137000 * See http://bugzilla.mozilla.org/show_bug.cgi?id=138708 * See http://bugzilla.mozilla.org/show_bug.cgi?id=150032 * See http://bugzilla.mozilla.org/show_bug.cgi?id=150859 * */ //----------------------------------------------------------------------------- var UBound = 0; var BUGNUMBER = 137000; var summary = 'Function param or local var with same name as a function prop'; var status = ''; var statusitems = []; var actual = ''; var actualvalues = []; var expect= ''; var expectedvalues = []; /* * Note use of 'x' both for the parameter to f, * and as a property name for |f| as an object */ function f(x) { } status = inSection(1); f.x = 12; actual = f.x; expect = 12; addThis(); /* * A more elaborate example, using the call() method * to chain constructors from child to parent. * * The key point is the use of the same name 'p' for both * the parameter to the constructor, and as a property name */ function parentObject(p) { this.p = 1; } function childObject() { parentObject.call(this); } childObject.prototype = parentObject; status = inSection(2); var objParent = new parentObject(); actual = objParent.p; expect = 1; addThis(); status = inSection(3); var objChild = new childObject(); actual = objChild.p; expect = 1; addThis(); /* * A similar set-up. Here the same name is being used for * the parameter to both the Base and Child constructors, */ function Base(id) { } function Child(id) { this.prop = id; } Child.prototype=Base; status = inSection(4); var c1 = new Child('child1'); actual = c1.prop; expect = 'child1'; addThis(); /* * Use same identifier as a property name, too - */ function BaseX(id) { } function ChildX(id) { this.id = id; } ChildX.prototype=BaseX; status = inSection(5); c1 = new ChildX('child1'); actual = c1.id; expect = 'child1'; addThis(); /* * From http://bugzilla.mozilla.org/show_bug.cgi?id=150032 * * Here the same name is being used both for a local variable * declared in g(), and as a property name for |g| as an object */ function g() { var propA = g.propA; var propB = g.propC; this.getVarA = function() {return propA;} this.getVarB = function() {return propB;} } g.propA = 'A'; g.propB = 'B'; g.propC = 'C'; var obj = new g(); status = inSection(6); actual = obj.getVarA(); // this one was returning 'undefined' expect = 'A'; addThis(); status = inSection(7); actual = obj.getVarB(); // this one is easy; it never failed expect = 'C'; addThis(); /* * By martin.honnen@gmx.de * From http://bugzilla.mozilla.org/show_bug.cgi?id=150859 * * Here the same name is being used for a local var in F * and as a property name for |F| as an object * * Twist: the property is added via another function. */ function setFProperty(val) { F.propA = val; } function F() { var propA = 'Local variable in F'; } status = inSection(8); setFProperty('Hello'); actual = F.propA; // this was returning 'undefined' expect = 'Hello'; addThis(); //----------------------------------------------------------------------------- test(); //----------------------------------------------------------------------------- function addThis() { statusitems[UBound] = status; actualvalues[UBound] = actual; expectedvalues[UBound] = expect; UBound++; } function test() { printBugNumber(BUGNUMBER); printStatus(summary); for (var i=0; i