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/* -*- 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: instanceof-001.js
* ECMA Section: 11.8.6
* Description:
*
* RelationalExpression instanceof Identifier
*
* Author: christine@netscape.com
* Date: 2 September 1998
*/
var SECTION = "instanceof-001";
var VERSION = "ECMA_2";
var TITLE = "instanceof"
startTest();
writeHeaderToLog( SECTION + " "+ TITLE);
function InstanceOf( object_1, object_2, expect ) {
result = object_1 instanceof object_2;
new TestCase(
SECTION,
"(" + object_1 + ") instanceof " + object_2,
expect,
result );
}
function Gen3(value) {
this.value = value;
this.generation = 3;
this.toString = new Function ( "return \"(Gen\"+this.generation+\" instance)\"" );
}
Gen3.name = 3;
Gen3.__proto__.toString = new Function( "return \"(\"+this.name+\" object)\"");
function Gen2(value) {
this.value = value;
this.generation = 2;
}
Gen2.name = 2;
Gen2.prototype = new Gen3();
function Gen1(value) {
this.value = value;
this.generation = 1;
}
Gen1.name = 1;
Gen1.prototype = new Gen2();
function Gen0(value) {
this.value = value;
this.generation = 0;
}
Gen0.name = 0;
Gen0.prototype = new Gen1();
function GenA(value) {
this.value = value;
this.generation = "A";
this.toString = new Function ( "return \"(instance of Gen\"+this.generation+\")\"" );
}
GenA.prototype = new Gen0();
GenA.name = "A";
function GenB(value) {
this.value = value;
this.generation = "B";
this.toString = new Function ( "return \"(instance of Gen\"+this.generation+\")\"" );
}
GenB.name = "B"
GenB.prototype = void 0;
// RelationalExpression is not an object.
InstanceOf( true, Boolean, false );
InstanceOf( new Boolean(false), Boolean, true );
// __proto__ of RelationalExpression is null. should return false
genA = new GenA();
genA.__proto__ = null;
InstanceOf( genA, GenA, false );
// RelationalExpression.__proto__ == (but not ===) Identifier.prototype
InstanceOf( new Gen2(), Gen0, false );
InstanceOf( new Gen2(), Gen1, false );
InstanceOf( new Gen2(), Gen2, true );
InstanceOf( new Gen2(), Gen3, true );
// RelationalExpression.__proto__.__proto__ === Identifier.prototype
InstanceOf( new Gen0(), Gen0, true );
InstanceOf( new Gen0(), Gen1, true );
InstanceOf( new Gen0(), Gen2, true );
InstanceOf( new Gen0(), Gen3, true );
InstanceOf( new Gen0(), Object, true );
InstanceOf( new Gen0(), Function, false );
InstanceOf( Gen0, Function, true );
InstanceOf( Gen0, Object, true );
test();
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