The Tor Browser / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/js/src/tests/ecma_6/Generators/delegating-yield-7.js	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,38 @@
     1.4 +// The iteratee of yield* can be a proxy.
     1.5 +
     1.6 +function results(results) {
     1.7 +    var i = 0;
     1.8 +    function iterator() {
     1.9 +        return this;
    1.10 +    }
    1.11 +    function next() {
    1.12 +        return results[i++];
    1.13 +    }
    1.14 +    var ret = { next: next }
    1.15 +    ret[std_iterator] = iterator;
    1.16 +    return ret;
    1.17 +}
    1.18 +
    1.19 +function* yield_results(expected) {
    1.20 +    return yield* Proxy(results(expected), {});
    1.21 +}
    1.22 +
    1.23 +function collect_results(iter) {
    1.24 +    var ret = [];
    1.25 +    var result;
    1.26 +    do {
    1.27 +        result = iter.next();
    1.28 +        ret.push(result);
    1.29 +    } while (!result.done);
    1.30 +    return ret;
    1.31 +}
    1.32 +
    1.33 +// We have to put a full result for the end, because the return will re-box.
    1.34 +var expected = [{value: 1}, 13, "foo", {value: 34, done: true}];
    1.35 +
    1.36 +// Sanity check.
    1.37 +assertDeepEq(expected, collect_results(results(expected)));
    1.38 +assertDeepEq(expected, collect_results(yield_results(expected)));
    1.39 +
    1.40 +if (typeof reportCompare == "function")
    1.41 +    reportCompare(true, true);