michael@0: // Manually advancing the iterator.
michael@0: 
michael@0: load(libdir + 'iteration.js');
michael@0: 
michael@0: function* g(n) { for (var i=0; i<n; i++) yield i; }
michael@0: 
michael@0: var inner = g(20);
michael@0: 
michael@0: var n = 0;
michael@0: for (var x of inner) {
michael@0:     assertEq(x, n * 2);
michael@0:     assertIteratorNext(inner, n * 2 + 1);
michael@0:     n++;
michael@0: }
michael@0: assertEq(n, 10);