JSTests/ChakraCore/test/FixedFields/FixedDataTypeTransition.js

//-------------------------------------------------------------------------------------------------------
// Copyright (C) Microsoft. All rights reserved.
// Licensed under the MIT license. See LICENSE.txt file in the project root for full license information.
//-------------------------------------------------------------------------------------------------------

/*Path Type Handler*/
var obj = {A:1, B:2} // PTH

function test0()
{
    return obj.A;
}

WScript.Echo(test0());
WScript.Echo(test0());
obj.A = 99;
WScript.Echo(test0());

/*Simple Dictionary Type Handler*/

var obj = {A:1} // PTH
Object.defineProperty(obj, "B", {
    enumerable   : true,
    configurable : false,
    writable     : false, 
    value        : 20
}); //SDTH

function test1()
{
    return obj.B;
}

WScript.Echo(test1());
WScript.Echo(test1());
obj.B = 99;
WScript.Echo(test1());