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js/src/jit-test/tests/for-of/semantics-11.js@6474c204b198 (annotated)

js/src/jit-test/tests/for-of/semantics-11.js

Wed, 31 Dec 2014 06:09:35 +0100

author

Michael Schloh von Bennewitz <michael@schloh.com>

date

Wed, 31 Dec 2014 06:09:35 +0100

changeset 0

6474c204b198

permissions

-rw-r--r--

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

michael@0	1	// for-of on a proxy causes a predictable sequence of trap calls.
michael@0	2
michael@0	3	load(libdir + "iteration.js");
michael@0	4
michael@0	5	var s = '';
michael@0	6
michael@0	7	var i = 0;
michael@0	8	var next_fn = Proxy.createFunction({}, function () {
michael@0	9	s += "n";
michael@0	10	if (i == 3)
michael@0	11	return { value: undefined, done: true };
michael@0	12	return { value: i++, done: false };
michael@0	13	});
michael@0	14
michael@0	15	var it = Proxy.create({
michael@0	16	get: function (receiver, name) {
michael@0	17	if (name == 'toSource') {
michael@0	18	s += '?';
michael@0	19	return function () 'it';
michael@0	20	}
michael@0	21	assertEq(name, "next");
michael@0	22	s += "N";
michael@0	23	return next_fn;
michael@0	24	}
michael@0	25	});
michael@0	26
michael@0	27	var iterator_fn = Proxy.createFunction({}, function () {
michael@0	28	s += 'i';
michael@0	29	return it;
michael@0	30	});
michael@0	31
michael@0	32	var obj = Proxy.create({
michael@0	33	get: function (receiver, name) {
michael@0	34	assertEq(name, std_iterator);
michael@0	35	s += "I";
michael@0	36	return iterator_fn;
michael@0	37	}
michael@0	38	});
michael@0	39
michael@0	40	for (var v of obj)
michael@0	41	s += v;
michael@0	42
michael@0	43	assertEq(s, 'IiNn0Nn1Nn2Nn');