JSTests/ChakraCore/test/fieldopts/rootObj-1.js

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

var x = "x.original";

var reset = function () {
    x = "x.original";
}

var test = function () {
    var z = "z.original";
    function innerTest() {
        x = "x.overwritten";
        z = x;
    }
    innerTest();
    return z;
}

test();
reset();

test();
reset();

function makeGlobalPropertyReadOnly(p) {
    Object.defineProperty(this, p, { writable: false });
}

function reportGlobalPropertyDescriptor(p) {
    WScript.Echo(p + ".configurable = " + Object.getOwnPropertyDescriptor(this, p).configurable);
    WScript.Echo(p + ".writable = " + Object.getOwnPropertyDescriptor(this, p).writable);
}

reportGlobalPropertyDescriptor("x");

makeGlobalPropertyReadOnly("x");
reportGlobalPropertyDescriptor("x");

var result = test();
WScript.Echo("x: " + x);
WScript.Echo("result: " + result);