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js/src/tests/ecma_6/Generators/delegating-yield-12.js@b8a032363ba2 (annotated)

js/src/tests/ecma_6/Generators/delegating-yield-12.js

Thu, 22 Jan 2015 13:21:57 +0100

author

Michael Schloh von Bennewitz <michael@schloh.com>

date

Thu, 22 Jan 2015 13:21:57 +0100

branch

TOR_BUG_9701

changeset 15

b8a032363ba2

permissions

-rw-r--r--

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

michael@0	1	// yield* calls @@iterator on the iterable to produce the iterator.
michael@0	2
michael@0	3	var log = '';
michael@0	4
michael@0	5	function IteratorWrapper(iterator) {
michael@0	6	return {
michael@0	7	next: function (val) {
michael@0	8	log += 'n';
michael@0	9	return iterator.next(val);
michael@0	10	},
michael@0	11
michael@0	12	throw: function (exn) {
michael@0	13	log += 't';
michael@0	14	return iterator.throw(exn);
michael@0	15	}
michael@0	16	};
michael@0	17	}
michael@0	18
michael@0	19	function IterableWrapper(iterable) {
michael@0	20	var ret = {};
michael@0	21
michael@0	22	ret[std_iterator] = function () {
michael@0	23	log += 'i';
michael@0	24	return IteratorWrapper(iterable[std_iterator]());
michael@0	25	}
michael@0	26
michael@0	27	return ret;
michael@0	28	}
michael@0	29
michael@0	30	function* delegate(iter) { return yield* iter; }
michael@0	31
michael@0	32	var iter = delegate(IterableWrapper([1, 2, 3]));
michael@0	33	assertIteratorNext(iter, 1);
michael@0	34	assertIteratorNext(iter, 2);
michael@0	35	assertIteratorNext(iter, 3);
michael@0	36	assertIteratorDone(iter, undefined);
michael@0	37
michael@0	38	assertEq(log, 'innnn');
michael@0	39
michael@0	40	iter = delegate([1, 2, 3]);
michael@0	41	assertIteratorNext(iter, 1);
michael@0	42	assertIteratorNext(iter, 2);
michael@0	43	assertIteratorNext(iter, 3);
michael@0	44	assertIteratorDone(iter, undefined);
michael@0	45
michael@0	46	assertEq(log, 'innnn');
michael@0	47
michael@0	48	if (typeof reportCompare == "function")
michael@0	49	reportCompare(true, true);