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js/src/jit-test/tests/debug/Object-apply-01.js@6474c204b198 (annotated)

js/src/jit-test/tests/debug/Object-apply-01.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	// tests calling script functions via Debugger.Object.prototype.apply/call
michael@0	2
michael@0	3	load(libdir + "asserts.js");
michael@0	4
michael@0	5	var g = newGlobal();
michael@0	6	g.eval("function f() { debugger; }");
michael@0	7	var dbg = new Debugger(g);
michael@0	8
michael@0	9	var hits = 0;
michael@0	10	function test(usingApply) {
michael@0	11	dbg.onDebuggerStatement = function (frame) {
michael@0	12	var fn = frame.arguments[0];
michael@0	13	var cv = usingApply ? fn.apply(null, [9, 16]) : fn.call(null, 9, 16);
michael@0	14	assertEq(Object.keys(cv).join(","), "return");
michael@0	15	assertEq(Object.getPrototypeOf(cv), Object.prototype);
michael@0	16	assertEq(cv.return, 25);
michael@0	17
michael@0	18	cv = usingApply ? fn.apply(null, ["hello ", "world"]) : fn.call(null, "hello ", "world");
michael@0	19	assertEq(Object.keys(cv).join(","), "return");
michael@0	20	assertEq(cv.return, "hello world");
michael@0	21
michael@0	22	// Handle more or less arguments.
michael@0	23	assertEq((usingApply ? fn.apply(null, [1, 5, 100]) : fn.call(null, 1, 5, 100)).return, 6);
michael@0	24	assertEq((usingApply ? fn.apply(null, []) : fn.call(null)).return, NaN);
michael@0	25	assertEq((usingApply ? fn.apply() : fn.call()).return, NaN);
michael@0	26
michael@0	27	// Throw if a this-value or argument is an object but not a Debugger.Object.
michael@0	28	assertThrowsInstanceOf(function () { usingApply ? fn.apply({}, []) : fn.call({}); },
michael@0	29	TypeError);
michael@0	30	assertThrowsInstanceOf(function () { usingApply ? fn.apply(null, [{}]) : fn.call(null, {}); },
michael@0	31	TypeError);
michael@0	32	hits++;
michael@0	33	};
michael@0	34	g.eval("f(function (a, b) { return a + b; });");
michael@0	35
michael@0	36	// The callee receives the right arguments even if more arguments are provided
michael@0	37	// than the callee's .length.
michael@0	38	dbg.onDebuggerStatement = function (frame) {
michael@0	39	assertEq((usingApply ? frame.arguments[0].apply(null, ['one', 'two'])
michael@0	40	: frame.arguments[0].call(null, 'one', 'two')).return,
michael@0	41	2);
michael@0	42	hits++;
michael@0	43	};
michael@0	44	g.eval("f(function () { return arguments.length; });");
michael@0	45
michael@0	46	// Exceptions are reported as {throw:} completion values.
michael@0	47	dbg.onDebuggerStatement = function (frame) {
michael@0	48	var lose = frame.arguments[0];
michael@0	49	var cv = usingApply ? lose.apply(null, []) : lose.call(null);
michael@0	50	assertEq(Object.keys(cv).join(","), "throw");
michael@0	51	assertEq(cv.throw, frame.callee);
michael@0	52	hits++;
michael@0	53	};
michael@0	54	g.eval("f(function lose() { throw f; });");
michael@0	55	}
michael@0	56
michael@0	57	test(true);
michael@0	58	test(false);
michael@0	59	assertEq(hits, 6);