michael@0: function heavyFn1(i) { 
michael@0:     if (i == 3) {
michael@0: 	var x = 3;
michael@0:         return [0, i].map(function (i) i + x);
michael@0:     }
michael@0:     return [];
michael@0: }
michael@0: 
michael@0: function heavyFn2(i) {
michael@0:     if (i < 1000)
michael@0:         return heavyFn1(i);
michael@0:     return function () i;
michael@0: }
michael@0: 
michael@0: function testHeavy2() {
michael@0:     for (var i = 0; i <= 3; i++)
michael@0:         heavyFn2(i);
michael@0: }
michael@0: 
michael@0: testHeavy2();