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js/src/jit-test/tests/arrays/slice.js@6474c204b198 (annotated)

js/src/jit-test/tests/arrays/slice.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	let invoked = false;
michael@0	2	Object.defineProperty(Array.prototype, '0', {set: function () {
michael@0	3	invoked = true;
michael@0	4	}});
michael@0	5
michael@0	6	let result = [1, 2, 3].slice(1);
michael@0	7	assertEq(invoked, false);
michael@0	8
michael@0	9	let proxy = new Proxy({}, {
michael@0	10	get: function (target, name, proxy) {
michael@0	11	switch (name) {
michael@0	12	case "length":
michael@0	13	return 2;
michael@0	14	case "0":
michael@0	15	return 15;
michael@0	16	case "1":
michael@0	17	// Should not invoke [[Get]] for this hole.
michael@0	18	default:
michael@0	19	assertEq(false, true);
michael@0	20	}
michael@0	21	},
michael@0	22	has: function (target, name) {
michael@0	23	switch (name) {
michael@0	24	case "0":
michael@0	25	return true;
michael@0	26	case "1":
michael@0	27	return false;
michael@0	28	default:
michael@0	29	assertEq(false, true);
michael@0	30	}
michael@0	31	}
michael@0	32	})
michael@0	33	result = Array.prototype.slice.call(proxy, 0);
michael@0	34	assertEq(result.length, 2);
michael@0	35	assertEq(0 in result, true);
michael@0	36	assertEq(1 in result, false);
michael@0	37	assertEq(result[0], 15);