• file
• revisions
• annotate
• diff
• comparison
• raw

js/src/jit-test/tests/arguments/defaults-scoping.js@6474c204b198 (annotated)

js/src/jit-test/tests/arguments/defaults-scoping.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	var x = 'global';
michael@0	2	function f(a=x) { // local variable x
michael@0	3	var x = 'local';
michael@0	4	return a;
michael@0	5	}
michael@0	6	assertEq(f(), undefined);
michael@0	7
michael@0	8	function g(f=function () { return ++x; }) { // closes on local variable x
michael@0	9	var x = 0;
michael@0	10	return f;
michael@0	11	}
michael@0	12	var gf = g();
michael@0	13	assertEq(gf(), 1);
michael@0	14	assertEq(gf(), 2);
michael@0	15	gf = g();
michael@0	16	assertEq(gf(), 1);
michael@0	17
michael@0	18	function h(f=function (s) { return eval(s); }) { // closes on local scope
michael@0	19	var x = 'hlocal';
michael@0	20	return f;
michael@0	21	}
michael@0	22	var hf = h();
michael@0	23	assertEq(hf('x'), 'hlocal');
michael@0	24	assertEq(hf('f'), hf);
michael@0	25	assertEq(hf('var x = 3; x'), 3);
michael@0	26
michael@0	27	function j(expr, v=eval(expr)) {
michael@0	28	return v;
michael@0	29	}
michael@0	30	assertEq(j("expr"), "expr");
michael@0	31	assertEq(j("v"), undefined);
michael@0	32	assertEq(j("Array"), Array);
michael@0	33	assertEq(j("arguments").length, 1);