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

js/src/jit-test/tests/for-of/array-iterator-generic.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	// Array.prototype.iterator is generic.
michael@0	2	// That is, it can be applied to arraylike objects and strings, not just arrays.
michael@0	3
michael@0	4	load(libdir + "asserts.js");
michael@0	5	load(libdir + "iteration.js");
michael@0	6
michael@0	7	function test(obj) {
michael@0	8	var it = Array.prototype[std_iterator].call(obj);
michael@0	9	var ki = Array.prototype.keys.call(obj);
michael@0	10	var ei = Array.prototype.entries.call(obj);
michael@0	11	for (var i = 0; i < (obj.length >>> 0); i++) {
michael@0	12	assertIteratorNext(it, obj[i]);
michael@0	13	assertIteratorNext(ki, i);
michael@0	14	assertIteratorNext(ei, [i, obj[i]]);
michael@0	15	}
michael@0	16	assertIteratorDone(it, undefined);
michael@0	17	assertIteratorDone(ki, undefined);
michael@0	18	assertIteratorDone(ei, undefined);
michael@0	19	}
michael@0	20
michael@0	21	test({length: 0});
michael@0	22	test({length: 0, 0: 'x', 1: 'y'});
michael@0	23	test({length: 2, 0: 'x', 1: 'y'});
michael@0	24	test(Object.create(['x', 'y', 'z']));
michael@0	25	test(Object.create({length: 2, 0: 'x', 1: 'y'}));
michael@0	26	test("");
michael@0	27	test("ponies");
michael@0	28
michael@0	29	// Perverse length values.
michael@0	30	test({length: 0x1f00000000});
michael@0	31	test({length: -0xfffffffe, 0: 'a', 1: 'b'});
michael@0	32	test({length: "011", 9: 9, 10: 10, 11: 11});
michael@0	33	test({length: -0});
michael@0	34	test({length: 2.7, 0: 0, 1: 1, 2: 2});
michael@0	35	test({length: {valueOf: function () { return 3; }}, 0: 0, 1: 1, 2: 2});