michael@0: // With yield*, inner and outer iterators can be invoked separately.
michael@0: 
michael@0: function* g(n) { for (var i=0; i<n; i++) yield i; }
michael@0: function* delegate(iter) { return yield* iter; }
michael@0: 
michael@0: var inner = g(20);
michael@0: var outer1 = delegate(inner);
michael@0: var outer2 = delegate(inner);
michael@0: 
michael@0: assertIteratorNext(outer1, 0);
michael@0: assertIteratorNext(outer2, 1);
michael@0: assertIteratorNext(inner, 2);
michael@0: assertIteratorNext(outer1, 3);
michael@0: assertIteratorNext(outer2, 4);
michael@0: assertIteratorNext(inner, 5);
michael@0: 
michael@0: if (typeof reportCompare == "function")
michael@0:     reportCompare(true, true);