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// Test that yield* can appear in a loop, and alongside yield.
function* countdown(n) {
while (n > 0) {
yield n;
yield* countdown(--n);
}
return 34;
}
function collect_results(iter) {
var ret = [];
var result;
do {
result = iter.next();
ret.push(result);
} while (!result.done);
return ret;
}
var expected = [
// yield in countdown(3), n == 3
{value: 3, done: false},
// yield in yield* countdown(2), n == 2
{value: 2, done: false},
// yield in nested yield* countdown(1), n == 1
{value: 1, done: false},
// countdown(0) yields no values
// second go-through of countdown(2) loop, n == 1
{value: 1, done: false},
// second go-through of countdown(3) loop, n == 2
{value: 2, done: false},
// yield in yield* countdown(1), n == 1
{value: 1, done: false},
// third go-through of countdown(3) loop, n == 1
{value: 1, done: false},
// done
{value: 34, done: true}
];
assertDeepEq(expected, collect_results(countdown(3)));
if (typeof reportCompare == "function")
reportCompare(true, true);
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