michael@0: function my_iterator_next() {
michael@0:     if (this.i == 10) {
michael@0:         this.i = 0;
michael@0:         throw this.StopIteration;
michael@0:     }
michael@0:     return this.i++;
michael@0: }
michael@0: function testCustomIterator() {
michael@0:     var o = {
michael@0:         __iterator__: function () {
michael@0:             return {
michael@0:                 i: 0,
michael@0:                 next: my_iterator_next,
michael@0:                 StopIteration: StopIteration
michael@0:             };
michael@0:         }
michael@0:     };
michael@0:     var a=[];
michael@0:     for (var k = 0; k < 100; k += 10) {
michael@0:         for(var j in o) {
michael@0:             a[k + (j >> 0)] = j*k;
michael@0:         }
michael@0:     }
michael@0:     return a.join();
michael@0: }
michael@0: assertEq(testCustomIterator(), "0,0,0,0,0,0,0,0,0,0,0,10,20,30,40,50,60,70,80,90,0,20,40,60,80,100,120,140,160,180,0,30,60,90,120,150,180,210,240,270,0,40,80,120,160,200,240,280,320,360,0,50,100,150,200,250,300,350,400,450,0,60,120,180,240,300,360,420,480,540,0,70,140,210,280,350,420,490,560,630,0,80,160,240,320,400,480,560,640,720,0,90,180,270,360,450,540,630,720,810");