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

js/src/jsapi-tests/testFuncCallback.cpp@b8a032363ba2 (annotated)

js/src/jsapi-tests/testFuncCallback.cpp

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	/* This Source Code Form is subject to the terms of the Mozilla Public
michael@0	2	* License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0	3	* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0	4
michael@0	5	#include "jsapi-tests/tests.h"
michael@0	6
michael@0	7	#ifdef MOZ_TRACE_JSCALLS
michael@0	8
michael@0	9	static int depth = 0;
michael@0	10	static int enters = 0;
michael@0	11	static int leaves = 0;
michael@0	12	static int interpreted = 0;
michael@0	13
michael@0	14	static void
michael@0	15	funcTransition(const JSFunction *,
michael@0	16	const JSScript *,
michael@0	17	const JSContext *cx,
michael@0	18	int entering)
michael@0	19	{
michael@0	20	if (entering > 0) {
michael@0	21	++depth;
michael@0	22	++enters;
michael@0	23	++interpreted;
michael@0	24	} else {
michael@0	25	--depth;
michael@0	26	++leaves;
michael@0	27	}
michael@0	28	}
michael@0	29
michael@0	30	static bool called2 = false;
michael@0	31
michael@0	32	static void
michael@0	33	funcTransition2(const JSFunction *, const JSScript*, const JSContext*, int)
michael@0	34	{
michael@0	35	called2 = true;
michael@0	36	}
michael@0	37
michael@0	38	static int overlays = 0;
michael@0	39	static JSFunctionCallback innerCallback = nullptr;
michael@0	40	static void
michael@0	41	funcTransitionOverlay(const JSFunction *fun,
michael@0	42	const JSScript *script,
michael@0	43	const JSContext *cx,
michael@0	44	int entering)
michael@0	45	{
michael@0	46	(*innerCallback)(fun, script, cx, entering);
michael@0	47	overlays++;
michael@0	48	}
michael@0	49	#endif
michael@0	50
michael@0	51	BEGIN_TEST(testFuncCallback_bug507012)
michael@0	52	{
michael@0	53	#ifdef MOZ_TRACE_JSCALLS
michael@0	54	// Call funcTransition() whenever a Javascript method is invoked
michael@0	55	JS_SetFunctionCallback(cx, funcTransition);
michael@0	56
michael@0	57	EXEC("x = 0; function f (n) { if (n > 1) { f(n - 1); } }");
michael@0	58	interpreted = enters = leaves = depth = 0;
michael@0	59
michael@0	60	// Check whether JS_Execute() tracking works
michael@0	61	EXEC("42");
michael@0	62	CHECK_EQUAL(enters, 1);
michael@0	63	CHECK_EQUAL(leaves, 1);
michael@0	64	CHECK_EQUAL(depth, 0);
michael@0	65	interpreted = enters = leaves = depth = 0;
michael@0	66
michael@0	67	// Check whether the basic function tracking works
michael@0	68	EXEC("f(1)");
michael@0	69	CHECK_EQUAL(enters, 1+1);
michael@0	70	CHECK_EQUAL(leaves, 1+1);
michael@0	71	CHECK_EQUAL(depth, 0);
michael@0	72
michael@0	73	// Can we switch to a different callback?
michael@0	74	enters = 777;
michael@0	75	JS_SetFunctionCallback(cx, funcTransition2);
michael@0	76	EXEC("f(1)");
michael@0	77	CHECK(called2);
michael@0	78	CHECK_EQUAL(enters, 777);
michael@0	79
michael@0	80	// Check whether we can turn off function tracing
michael@0	81	JS_SetFunctionCallback(cx, nullptr);
michael@0	82	EXEC("f(1)");
michael@0	83	CHECK_EQUAL(enters, 777);
michael@0	84	interpreted = enters = leaves = depth = 0;
michael@0	85
michael@0	86	// Check nested invocations
michael@0	87	JS_SetFunctionCallback(cx, funcTransition);
michael@0	88	enters = leaves = depth = 0;
michael@0	89	EXEC("f(3)");
michael@0	90	CHECK_EQUAL(enters, 1+3);
michael@0	91	CHECK_EQUAL(leaves, 1+3);
michael@0	92	CHECK_EQUAL(depth, 0);
michael@0	93	interpreted = enters = leaves = depth = 0;
michael@0	94
michael@0	95	// Check calls invoked while running on trace -- or now, perhaps on
michael@0	96	// IonMonkey's equivalent, if it ever starts to exist?
michael@0	97	EXEC("function g () { ++x; }");
michael@0	98	interpreted = enters = leaves = depth = 0;
michael@0	99	EXEC("for (i = 0; i < 5000; ++i) { g(); }");
michael@0	100	CHECK_EQUAL(enters, 1+5000);
michael@0	101	CHECK_EQUAL(leaves, 1+5000);
michael@0	102	CHECK_EQUAL(depth, 0);
michael@0	103
michael@0	104	// Test nesting callbacks via JS_GetFunctionCallback()
michael@0	105	JS_SetFunctionCallback(cx, funcTransition);
michael@0	106	innerCallback = JS_GetFunctionCallback(cx);
michael@0	107	JS_SetFunctionCallback(cx, funcTransitionOverlay);
michael@0	108
michael@0	109	EXEC("x = 0; function f (n) { if (n > 1) { f(n - 1); } }");
michael@0	110	interpreted = enters = leaves = depth = overlays = 0;
michael@0	111
michael@0	112	EXEC("42.5");
michael@0	113	CHECK_EQUAL(enters, 1);
michael@0	114	CHECK_EQUAL(leaves, 1);
michael@0	115	CHECK_EQUAL(depth, 0);
michael@0	116	CHECK_EQUAL(overlays, enters + leaves);
michael@0	117	interpreted = enters = leaves = depth = overlays = 0;
michael@0	118	#endif
michael@0	119
michael@0	120	// Uncomment this to validate whether you're hitting all runmodes (interp,
michael@0	121	// mjit, ...?) Unfortunately, that still doesn't cover all
michael@0	122	// transitions between the various runmodes, but it's a start.
michael@0	123	//JS_DumpAllProfiles(cx);
michael@0	124
michael@0	125	return true;
michael@0	126	}
michael@0	127
michael@0	128	// Make sure that the method jit is enabled.
michael@0	129	// We'll probably want to test in all modes.
michael@0	130	virtual
michael@0	131	JSContext *createContext()
michael@0	132	{
michael@0	133	JSContext *cx = JSAPITest::createContext();
michael@0	134	if (!cx)
michael@0	135	return nullptr;
michael@0	136	JS::RuntimeOptionsRef(cx).setBaseline(true)
michael@0	137	.setIon(true);
michael@0	138	return cx;
michael@0	139	}
michael@0	140
michael@0	141	END_TEST(testFuncCallback_bug507012)