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js/src/jit-test/tests/debug/Environment-setVariable-10.js@6474c204b198 (annotated)

js/src/jit-test/tests/debug/Environment-setVariable-10.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	// setVariable works on non-innermost environments.
michael@0	2
michael@0	3	// (The debuggee code here is a bit convoluted to defeat optimizations that
michael@0	4	// could make obj.b a null closure or obj.i a flat closure--that is, a function
michael@0	5	// that gets a frozen copy of i instead of a reference to the runtime
michael@0	6	// environment that contains it. setVariable does not currently detect this
michael@0	7	// flat closure case.)
michael@0	8
michael@0	9	var g = newGlobal();
michael@0	10	g.eval("function d() { debugger; }\n" +
michael@0	11	"var i = 'FAIL';\n" +
michael@0	12	"function a() {\n" +
michael@0	13	" var obj = {b: function (i) { d(obj); return i; },\n" +
michael@0	14	" i: function () { return i; }};\n" +
michael@0	15	" var i = 'FAIL2';\n" +
michael@0	16	" return obj;\n" +
michael@0	17	"}\n");
michael@0	18
michael@0	19	var dbg = Debugger(g);
michael@0	20	dbg.onDebuggerStatement = function (frame) {
michael@0	21	var x = 0;
michael@0	22	for (var env = frame.older.environment; env; env = env.parent) {
michael@0	23	if (env.getVariable("i") !== undefined)
michael@0	24	env.setVariable("i", x++);
michael@0	25	}
michael@0	26	};
michael@0	27
michael@0	28	var obj = g.a();
michael@0	29	var r = obj.b('FAIL3');
michael@0	30	assertEq(r, 0);
michael@0	31	assertEq(obj.i(), 1);
michael@0	32	assertEq(g.i, 2);