michael@0: // map.iterator() and iter.next() are non-generic but work on cross-compartment wrappers.
michael@0: 
michael@0: load(libdir + "asserts.js");
michael@0: load(libdir + "iteration.js");
michael@0: 
michael@0: var g = newGlobal();
michael@0: 
michael@0: var iterator_fn = Set.prototype[std_iterator];
michael@0: assertThrowsInstanceOf(function () { iterator_fn.call({}); }, TypeError);
michael@0: assertThrowsInstanceOf(function () { iterator_fn.call(Map()); }, TypeError);
michael@0: var setw = g.eval("Set(['x', 'y'])");
michael@0: assertIteratorNext(iterator_fn.call(setw), "x");
michael@0: 
michael@0: var next_fn = Set()[std_iterator]().next;
michael@0: assertThrowsInstanceOf(function () { next_fn.call({}); }, TypeError);
michael@0: assertThrowsInstanceOf(function () { next_fn.call(Map()[std_iterator]()); }, TypeError);
michael@0: var iterw = setw[std_iterator]();
michael@0: assertIteratorResult(next_fn.call(iterw), "x", false);
michael@0: assertIteratorResult(next_fn.call(iterw), "y", false);
michael@0: assertIteratorResult(next_fn.call(iterw), undefined, true);