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