michael@0: /*
michael@0:  * Any copyright is dedicated to the Public Domain.
michael@0:  * http://creativecommons.org/licenses/publicdomain/
michael@0:  */
michael@0: 
michael@0: var gTestfile = 'destructuring-for-inof-__proto__.js';
michael@0: var BUGNUMBER = 963641;
michael@0: var summary =
michael@0:   "__proto__ should work in destructuring patterns as the targets of " +
michael@0:   "for-in/for-of loops";
michael@0: 
michael@0: print(BUGNUMBER + ": " + summary);
michael@0: 
michael@0: /**************
michael@0:  * BEGIN TEST *
michael@0:  **************/
michael@0: 
michael@0: function objectWithProtoProperty(v)
michael@0: {
michael@0:   var obj = {};
michael@0:   return Object.defineProperty(obj, "__proto__",
michael@0:                                {
michael@0:                                  enumerable: true,
michael@0:                                  configurable: true,
michael@0:                                  writable: true,
michael@0:                                  value: v
michael@0:                                });
michael@0: }
michael@0: 
michael@0: function* objectWithProtoGenerator(v)
michael@0: {
michael@0:   yield objectWithProtoProperty(v);
michael@0: }
michael@0: 
michael@0: function* identityGenerator(v)
michael@0: {
michael@0:   yield v;
michael@0: }
michael@0: 
michael@0: for (var { __proto__: target } of objectWithProtoGenerator(null))
michael@0:   assertEq(target, null);
michael@0: 
michael@0: for ({ __proto__: target } of objectWithProtoGenerator("aacchhorrt"))
michael@0:   assertEq(target, "aacchhorrt");
michael@0: 
michael@0: for ({ __proto__: target } of identityGenerator(42))
michael@0:   assertEq(target, Number.prototype);
michael@0: 
michael@0: for (var { __proto__: target } in { prop: "kneedle" })
michael@0:   assertEq(target, String.prototype);
michael@0: 
michael@0: for ({ __proto__: target } in { prop: "snork" })
michael@0:   assertEq(target, String.prototype);
michael@0: 
michael@0: for ({ __proto__: target } in { prop: "ohia" })
michael@0:   assertEq(target, String.prototype);
michael@0: 
michael@0: function nested()
michael@0: {
michael@0:   for (var { __proto__: target } of objectWithProtoGenerator(null))
michael@0:     assertEq(target, null);
michael@0: 
michael@0:   for ({ __proto__: target } of objectWithProtoGenerator("aacchhorrt"))
michael@0:     assertEq(target, "aacchhorrt");
michael@0: 
michael@0:   for ({ __proto__: target } of identityGenerator(42))
michael@0:     assertEq(target, Number.prototype);
michael@0: 
michael@0:   for (var { __proto__: target } in { prop: "kneedle" })
michael@0:     assertEq(target, String.prototype);
michael@0: 
michael@0:   for ({ __proto__: target } in { prop: "snork" })
michael@0:     assertEq(target, String.prototype);
michael@0: 
michael@0:   for ({ __proto__: target } in { prop: "ohia" })
michael@0:     assertEq(target, String.prototype);
michael@0: }
michael@0: nested();
michael@0: 
michael@0: /******************************************************************************/
michael@0: 
michael@0: if (typeof reportCompare === "function")
michael@0:   reportCompare(true, true);
michael@0: 
michael@0: print("Tests complete");