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:  * Date:    03 June 2002
michael@0:  * SUMMARY: Function param or local var with same name as a function property
michael@0:  *
michael@0:  * See http://bugzilla.mozilla.org/show_bug.cgi?id=137000
michael@0:  * See http://bugzilla.mozilla.org/show_bug.cgi?id=138708
michael@0:  * See http://bugzilla.mozilla.org/show_bug.cgi?id=150032
michael@0:  * See http://bugzilla.mozilla.org/show_bug.cgi?id=150859
michael@0:  *
michael@0:  */
michael@0: //-----------------------------------------------------------------------------
michael@0: var UBound = 0;
michael@0: var BUGNUMBER = 137000;
michael@0: var summary = 'Function param or local var with same name as a function prop';
michael@0: var status = '';
michael@0: var statusitems = [];
michael@0: var actual = '';
michael@0: var actualvalues = [];
michael@0: var expect= '';
michael@0: var expectedvalues = [];
michael@0: 
michael@0: 
michael@0: /*
michael@0:  * Note use of 'x' both for the parameter to f,
michael@0:  * and as a property name for |f| as an object
michael@0:  */
michael@0: function f(x)
michael@0: {
michael@0: }
michael@0: 
michael@0: status = inSection(1);
michael@0: f.x = 12;
michael@0: actual = f.x;
michael@0: expect = 12;
michael@0: addThis();
michael@0: 
michael@0: 
michael@0: 
michael@0: /*
michael@0:  * A more elaborate example, using the call() method
michael@0:  * to chain constructors from child to parent.
michael@0:  *
michael@0:  * The key point is the use of the same name 'p' for both
michael@0:  * the parameter to the constructor, and as a property name
michael@0:  */
michael@0: function parentObject(p)
michael@0: {
michael@0:   this.p = 1;
michael@0: }
michael@0: 
michael@0: function childObject()
michael@0: {
michael@0:   parentObject.call(this);
michael@0: }
michael@0: childObject.prototype = parentObject;
michael@0: 
michael@0: status = inSection(2);
michael@0: var objParent = new parentObject();
michael@0: actual = objParent.p;
michael@0: expect = 1;
michael@0: addThis();
michael@0: 
michael@0: status = inSection(3);
michael@0: var objChild = new childObject();
michael@0: actual = objChild.p;
michael@0: expect = 1;
michael@0: addThis();
michael@0: 
michael@0: 
michael@0: 
michael@0: /*
michael@0:  * A similar set-up. Here the same name is being used for
michael@0:  * the parameter to both the Base and Child constructors,
michael@0:  */
michael@0: function Base(id)
michael@0: {
michael@0: }
michael@0: 
michael@0: function Child(id)
michael@0: {
michael@0:   this.prop = id;
michael@0: }
michael@0: Child.prototype=Base;
michael@0: 
michael@0: status = inSection(4);
michael@0: var c1 = new Child('child1');
michael@0: actual = c1.prop;
michael@0: expect = 'child1';
michael@0: addThis();
michael@0: 
michael@0: 
michael@0: 
michael@0: /*
michael@0:  * Use same identifier as a property name, too -
michael@0:  */
michael@0: function BaseX(id)
michael@0: {
michael@0: }
michael@0: 
michael@0: function ChildX(id)
michael@0: {
michael@0:   this.id = id;
michael@0: }
michael@0: ChildX.prototype=BaseX;
michael@0: 
michael@0: status = inSection(5);
michael@0: c1 = new ChildX('child1');
michael@0: actual = c1.id;
michael@0: expect = 'child1';
michael@0: addThis();
michael@0: 
michael@0: 
michael@0: 
michael@0: /*
michael@0:  * From http://bugzilla.mozilla.org/show_bug.cgi?id=150032
michael@0:  *
michael@0:  * Here the same name is being used both for a local variable
michael@0:  * declared in g(), and as a property name for |g| as an object
michael@0:  */
michael@0: function g()
michael@0: {
michael@0:   var propA = g.propA;
michael@0:   var propB = g.propC;
michael@0: 
michael@0:   this.getVarA = function() {return propA;}
michael@0:   this.getVarB = function() {return propB;}
michael@0: }
michael@0: g.propA = 'A';
michael@0: g.propB = 'B';
michael@0: g.propC = 'C';
michael@0: var obj = new g();
michael@0: 
michael@0: status = inSection(6);
michael@0: actual = obj.getVarA(); // this one was returning 'undefined'
michael@0: expect = 'A';
michael@0: addThis();
michael@0: 
michael@0: status = inSection(7);
michael@0: actual = obj.getVarB(); // this one is easy; it never failed
michael@0: expect = 'C';
michael@0: addThis();
michael@0: 
michael@0: 
michael@0: 
michael@0: /*
michael@0:  * By martin.honnen@gmx.de
michael@0:  * From http://bugzilla.mozilla.org/show_bug.cgi?id=150859
michael@0:  *
michael@0:  * Here the same name is being used for a local var in F
michael@0:  * and as a property name for |F| as an object
michael@0:  *
michael@0:  * Twist: the property is added via another function.
michael@0:  */
michael@0: function setFProperty(val)
michael@0: {
michael@0:   F.propA = val;
michael@0: }
michael@0: 
michael@0: function F()
michael@0: {
michael@0:   var propA = 'Local variable in F';
michael@0: }
michael@0: 
michael@0: status = inSection(8);
michael@0: setFProperty('Hello');
michael@0: actual = F.propA; // this was returning 'undefined'
michael@0: expect = 'Hello';
michael@0: addThis();
michael@0: 
michael@0: 
michael@0: 
michael@0: 
michael@0: //-----------------------------------------------------------------------------
michael@0: test();
michael@0: //-----------------------------------------------------------------------------
michael@0: 
michael@0: 
michael@0: 
michael@0: function addThis()
michael@0: {
michael@0:   statusitems[UBound] = status;
michael@0:   actualvalues[UBound] = actual;
michael@0:   expectedvalues[UBound] = expect;
michael@0:   UBound++;
michael@0: }
michael@0: 
michael@0: 
michael@0: function test()
michael@0: {
michael@0:   enterFunc('test');
michael@0:   printBugNumber(BUGNUMBER);
michael@0:   printStatus(summary);
michael@0: 
michael@0:   for (var i=0; i<UBound; i++)
michael@0:   {
michael@0:     reportCompare(expectedvalues[i], actualvalues[i], statusitems[i]);
michael@0:   }
michael@0: 
michael@0:   exitFunc ('test');
michael@0: }