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js/src/jit-test/tests/debug/Environment-callee-01.js@b8a032363ba2 (annotated)

js/src/jit-test/tests/debug/Environment-callee-01.js

Thu, 22 Jan 2015 13:21:57 +0100

author

Michael Schloh von Bennewitz <michael@schloh.com>

date

Thu, 22 Jan 2015 13:21:57 +0100

branch

TOR_BUG_9701

changeset 15

b8a032363ba2

permissions

-rw-r--r--

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

michael@0	1	// Debugger.Environment.prototype.callee reveals the callee of environments
michael@0	2	// that have them.
michael@0	3
michael@0	4	var g = newGlobal();
michael@0	5	var dbg = new Debugger;
michael@0	6	var gw = dbg.addDebuggee(g);
michael@0	7
michael@0	8	function check(code, expectedType, expectedCallee) {
michael@0	9	print("check(" + uneval(code) + ")");
michael@0	10	var hits;
michael@0	11	dbg.onDebuggerStatement = function (frame) {
michael@0	12	hits++;
michael@0	13	var env = frame.environment;
michael@0	14	assertEq(env.type, expectedType);
michael@0	15	assertEq(env.callee, expectedCallee);
michael@0	16	};
michael@0	17	hits = 0;
michael@0	18	g.eval(code);
michael@0	19	assertEq(hits, 1);
michael@0	20	}
michael@0	21
michael@0	22	check('debugger;', 'object', null);
michael@0	23	check('with({}) { debugger; };', 'with', null);
michael@0	24	check('let (x=1) { debugger; };', 'declarative', null);
michael@0	25
michael@0	26	g.eval('function f() { debugger; }');
michael@0	27	check('f()', 'declarative', gw.makeDebuggeeValue(g.f));
michael@0	28
michael@0	29	g.eval('function g() { h(); }');
michael@0	30	g.eval('function h() { debugger; }');
michael@0	31	check('g()', 'declarative', gw.makeDebuggeeValue(g.h));
michael@0	32
michael@0	33	// Strict direct eval gets its own environment.
michael@0	34	check('"use strict"; eval("debugger");', 'declarative', null);
michael@0	35	g.eval('function j() { "use strict"; eval("debugger;"); }');
michael@0	36	check('j()', 'declarative', null);
michael@0	37
michael@0	38	// Lenient direct eval shares eval's caller's environment,
michael@0	39	// although this is a great evil.
michael@0	40	check('eval("debugger");', 'object', null);
michael@0	41	g.eval('function k() { eval("debugger;"); }');
michael@0	42	check('k()', 'declarative', gw.makeDebuggeeValue(g.k));
michael@0	43
michael@0	44	g.eval('function m() { debugger; yield true; }');
michael@0	45	check('m().next();', 'declarative', gw.makeDebuggeeValue(g.m));
michael@0	46
michael@0	47	g.eval('function n() { let (x = 1) { debugger; } }');
michael@0	48	check('n()', 'declarative', null);
michael@0	49
michael@0	50	g.eval('function* o() { debugger; yield true; }');
michael@0	51	check('o().next();', 'declarative', gw.makeDebuggeeValue(g.o));