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js/src/jit-test/tests/basic/testMissingProperties.js@6474c204b198 (annotated)

js/src/jit-test/tests/basic/testMissingProperties.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	function isnan(n) { return n !== n }
michael@0	2
michael@0	3	function f(x) {
michael@0	4	var sum = 0;
michael@0	5	for (var i = 0; i < 100; ++i)
michael@0	6	sum += x.x;
michael@0	7	return sum;
michael@0	8	}
michael@0	9	var o = {};
michael@0	10	assertEq(isnan(f(o)), true);
michael@0	11	o.x = 1;
michael@0	12	assertEq(f(o), 100);
michael@0	13	var o = {a:1, b:2};
michael@0	14	assertEq(isnan(f(o)), true);
michael@0	15	o.x = 2;
michael@0	16	assertEq(f(o), 200);
michael@0	17
michael@0	18	function g(x) {
michael@0	19	var sum = 0;
michael@0	20	for (var i = 0; i < 100; ++i)
michael@0	21	sum += x.x;
michael@0	22	return sum;
michael@0	23	}
michael@0	24	var o = {c:1, x:1};
michael@0	25	assertEq(g(o), 100);
michael@0	26	var o = {};
michael@0	27	assertEq(isnan(g(o)), true);
michael@0	28
michael@0	29	function h(x) {
michael@0	30	var sum = 0;
michael@0	31	for (var i = 0; i < 100; ++i)
michael@0	32	sum += x.x;
michael@0	33	return sum;
michael@0	34	}
michael@0	35
michael@0	36	var proto1 = {};
michael@0	37	var proto2 = Object.create(proto1);
michael@0	38	var o = Object.create(proto2);
michael@0	39	assertEq(isnan(f(o)), true);
michael@0	40	assertEq(isnan(g(o)), true);
michael@0	41	assertEq(isnan(h(o)), true);
michael@0	42	proto2.x = 2;
michael@0	43	assertEq(f(o), 200);
michael@0	44	assertEq(g(o), 200);
michael@0	45	assertEq(h(o), 200);
michael@0	46	var o = {}
michael@0	47	assertEq(isnan(f(o)), true);
michael@0	48	assertEq(isnan(g(o)), true);
michael@0	49	assertEq(isnan(h(o)), true);