object-literal-computed-property-evaluation.js

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// Any copyright is dedicated to the Public Domain.

// http://creativecommons.org/licenses/publicdomain/

//-----------------------------------------------------------------------------

var BUGNUMBER = 1199546;

var summary =

  "Convert computed property name expressions to property key before " +

  "evaluating the property's value";

print(BUGNUMBER + ": " + summary);

/**************

 * BEGIN TEST *

 **************/

var s = "foo";

var convertsToS = { toString() { return s; } };

var o = {

  [convertsToS]: // after ToPropertyKey becomes "foo"

    (function() {

      s = 'bar';

      return 'abc'; // so we have "foo": "bar" for the first property

     })(),

  [convertsToS]: // |s| was set above to "bar", so after ToPropertyKey, "bar"

    'efg' // so we have "bar": "efg" for the second property

};

assertEq(o.foo, "abc");

assertEq(o.bar, "efg");

/******************************************************************************/

if (typeof reportCompare === "function")

  reportCompare(true, true);

print("Tests complete");