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: proto_10.js michael@0: Section: michael@0: Description: Determining Instance Relationships michael@0: michael@0: This tests Object Hierarchy and Inheritance, as described in the document michael@0: Object Hierarchy and Inheritance in JavaScript, last modified on 12/18/97 michael@0: 15:19:34 on http://devedge.netscape.com/. Current URL: michael@0: http://devedge.netscape.com/docs/manuals/communicator/jsobj/contents.htm michael@0: michael@0: This tests the syntax ObjectName.prototype = new PrototypeObject using the michael@0: Employee example in the document referenced above. michael@0: michael@0: Author: christine@netscape.com michael@0: Date: 12 november 1997 michael@0: */ michael@0: michael@0: var SECTION = "proto_10"; michael@0: var VERSION = "JS1_3"; michael@0: var TITLE = "Determining Instance Relationships"; michael@0: michael@0: startTest(); michael@0: writeHeaderToLog( SECTION + " "+ TITLE); michael@0: michael@0: function InstanceOf( object, constructor ) { michael@0: return object instanceof constructor; michael@0: } michael@0: function Employee ( name, dept ) { michael@0: this.name = name || ""; michael@0: this.dept = dept || "general"; michael@0: } michael@0: michael@0: function Manager () { michael@0: this.reports = []; michael@0: } michael@0: Manager.prototype = new Employee(); michael@0: michael@0: function WorkerBee ( name, dept, projs ) { michael@0: this.base = Employee; michael@0: this.base( name, dept) michael@0: this.projects = projs || new Array(); michael@0: } michael@0: WorkerBee.prototype = new Employee(); michael@0: michael@0: function SalesPerson () { michael@0: this.dept = "sales"; michael@0: this.quota = 100; michael@0: } michael@0: SalesPerson.prototype = new WorkerBee(); michael@0: michael@0: function Engineer ( name, projs, machine ) { michael@0: this.base = WorkerBee; michael@0: this.base( name, "engineering", projs ) michael@0: this.machine = machine || ""; michael@0: } michael@0: Engineer.prototype = new WorkerBee(); michael@0: michael@0: var pat = new Engineer(); michael@0: michael@0: new TestCase( SECTION, michael@0: "InstanceOf( pat, Engineer )", michael@0: true, michael@0: InstanceOf( pat, Engineer ) ); michael@0: michael@0: new TestCase( SECTION, michael@0: "InstanceOf( pat, WorkerBee )", michael@0: true, michael@0: InstanceOf( pat, WorkerBee ) ); michael@0: michael@0: new TestCase( SECTION, michael@0: "InstanceOf( pat, Employee )", michael@0: true, michael@0: InstanceOf( pat, Employee ) ); michael@0: michael@0: new TestCase( SECTION, michael@0: "InstanceOf( pat, Object )", michael@0: true, michael@0: InstanceOf( pat, Object ) ); michael@0: michael@0: new TestCase( SECTION, michael@0: "InstanceOf( pat, SalesPerson )", michael@0: false, michael@0: InstanceOf ( pat, SalesPerson ) ); michael@0: test();