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js/src/jit-test/tests/for-of/array-iterator-proxy.js@6474c204b198 (annotated)

js/src/jit-test/tests/for-of/array-iterator-proxy.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	// An array iterator for a proxy calls the traps in a predictable order.
michael@0	2
michael@0	3	load(libdir + "asserts.js");
michael@0	4	load(libdir + "iteration.js");
michael@0	5
michael@0	6	var s = '';
michael@0	7
michael@0	8	var proxyObj = {
michael@0	9	get: function (recipient, name) {
michael@0	10	if (name == 'length') {
michael@0	11	s += 'L';
michael@0	12	return 2;
michael@0	13	} else {
michael@0	14	s += name;
michael@0	15	return name;
michael@0	16	}
michael@0	17	}
michael@0	18	};
michael@0	19
michael@0	20	var it = Array.prototype[std_iterator].call(Proxy.create(proxyObj));
michael@0	21
michael@0	22	assertIteratorNext(it, "0");
michael@0	23	s += ' ';
michael@0	24	assertIteratorNext(it, "1");
michael@0	25	s += ' ';
michael@0	26	assertIteratorDone(it, undefined);
michael@0	27	assertEq(s, "L0 L1 L");
michael@0	28
michael@0	29	s = '';
michael@0	30	var ki = Array.prototype.keys.call(Proxy.create(proxyObj));
michael@0	31
michael@0	32	assertIteratorNext(ki, 0);
michael@0	33	s += ' ';
michael@0	34	assertIteratorNext(ki, 1);
michael@0	35	s += ' ';
michael@0	36	assertIteratorDone(ki, undefined);
michael@0	37	assertEq(s, "L L L");
michael@0	38
michael@0	39	s = '';
michael@0	40	var ei = Array.prototype.entries.call(Proxy.create(proxyObj));
michael@0	41
michael@0	42	assertIteratorNext(ei, [0, "0"]);
michael@0	43	s += ' ';
michael@0	44	assertIteratorNext(ei, [1, "1"]);
michael@0	45	s += ' ';
michael@0	46	assertIteratorDone(ei, undefined);
michael@0	47	assertEq(s, "L0 L1 L");