js/src/tests/ecma_5/extensions/destructuring-__proto__-target-assignment.js

changeset 0
6474c204b198
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/js/src/tests/ecma_5/extensions/destructuring-__proto__-target-assignment.js	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,50 @@
     1.4 +/*
     1.5 + * Any copyright is dedicated to the Public Domain.
     1.6 + * http://creativecommons.org/licenses/publicdomain/
     1.7 + */
     1.8 +
     1.9 +var gTestfile = 'destructuring-__proto__-target--assignment.js';
    1.10 +var BUGNUMBER = 963641;
    1.11 +var summary =
    1.12 +  "{ __proto__: target } should work as a destructuring assignment pattern";
    1.13 +
    1.14 +print(BUGNUMBER + ": " + summary);
    1.15 +
    1.16 +/**************
    1.17 + * BEGIN TEST *
    1.18 + **************/
    1.19 +
    1.20 +function objectWithProtoProperty(v)
    1.21 +{
    1.22 +  var obj = {};
    1.23 +  return Object.defineProperty(obj, "__proto__",
    1.24 +                               {
    1.25 +                                 enumerable: true,
    1.26 +                                 configurable: true,
    1.27 +                                 writable: true,
    1.28 +                                 value: v
    1.29 +                               });
    1.30 +}
    1.31 +
    1.32 +var { __proto__: target } = objectWithProtoProperty(null);
    1.33 +assertEq(target, null);
    1.34 +
    1.35 +({ __proto__: target } = objectWithProtoProperty("aacchhorrt"));
    1.36 +assertEq(target, "aacchhorrt");
    1.37 +
    1.38 +function nested()
    1.39 +{
    1.40 +  var { __proto__: target } = objectWithProtoProperty(3.141592654);
    1.41 +  assertEq(target, 3.141592654);
    1.42 +
    1.43 +  ({ __proto__: target } = objectWithProtoProperty(-0));
    1.44 +  assertEq(target, -0);
    1.45 +}
    1.46 +nested();
    1.47 +
    1.48 +/******************************************************************************/
    1.49 +
    1.50 +if (typeof reportCompare === "function")
    1.51 +  reportCompare(true, true);
    1.52 +
    1.53 +print("Tests complete");

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