1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/js/src/jsapi-tests/testFuncCallback.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,141 @@
1.4 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.5 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.6 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.7 +
1.8 +#include "jsapi-tests/tests.h"
1.9 +
1.10 +#ifdef MOZ_TRACE_JSCALLS
1.11 +
1.12 +static int depth = 0;
1.13 +static int enters = 0;
1.14 +static int leaves = 0;
1.15 +static int interpreted = 0;
1.16 +
1.17 +static void
1.18 +funcTransition(const JSFunction *,
1.19 + const JSScript *,
1.20 + const JSContext *cx,
1.21 + int entering)
1.22 +{
1.23 + if (entering > 0) {
1.24 + ++depth;
1.25 + ++enters;
1.26 + ++interpreted;
1.27 + } else {
1.28 + --depth;
1.29 + ++leaves;
1.30 + }
1.31 +}
1.32 +
1.33 +static bool called2 = false;
1.34 +
1.35 +static void
1.36 +funcTransition2(const JSFunction *, const JSScript*, const JSContext*, int)
1.37 +{
1.38 + called2 = true;
1.39 +}
1.40 +
1.41 +static int overlays = 0;
1.42 +static JSFunctionCallback innerCallback = nullptr;
1.43 +static void
1.44 +funcTransitionOverlay(const JSFunction *fun,
1.45 + const JSScript *script,
1.46 + const JSContext *cx,
1.47 + int entering)
1.48 +{
1.49 + (*innerCallback)(fun, script, cx, entering);
1.50 + overlays++;
1.51 +}
1.52 +#endif
1.53 +
1.54 +BEGIN_TEST(testFuncCallback_bug507012)
1.55 +{
1.56 +#ifdef MOZ_TRACE_JSCALLS
1.57 + // Call funcTransition() whenever a Javascript method is invoked
1.58 + JS_SetFunctionCallback(cx, funcTransition);
1.59 +
1.60 + EXEC("x = 0; function f (n) { if (n > 1) { f(n - 1); } }");
1.61 + interpreted = enters = leaves = depth = 0;
1.62 +
1.63 + // Check whether JS_Execute() tracking works
1.64 + EXEC("42");
1.65 + CHECK_EQUAL(enters, 1);
1.66 + CHECK_EQUAL(leaves, 1);
1.67 + CHECK_EQUAL(depth, 0);
1.68 + interpreted = enters = leaves = depth = 0;
1.69 +
1.70 + // Check whether the basic function tracking works
1.71 + EXEC("f(1)");
1.72 + CHECK_EQUAL(enters, 1+1);
1.73 + CHECK_EQUAL(leaves, 1+1);
1.74 + CHECK_EQUAL(depth, 0);
1.75 +
1.76 + // Can we switch to a different callback?
1.77 + enters = 777;
1.78 + JS_SetFunctionCallback(cx, funcTransition2);
1.79 + EXEC("f(1)");
1.80 + CHECK(called2);
1.81 + CHECK_EQUAL(enters, 777);
1.82 +
1.83 + // Check whether we can turn off function tracing
1.84 + JS_SetFunctionCallback(cx, nullptr);
1.85 + EXEC("f(1)");
1.86 + CHECK_EQUAL(enters, 777);
1.87 + interpreted = enters = leaves = depth = 0;
1.88 +
1.89 + // Check nested invocations
1.90 + JS_SetFunctionCallback(cx, funcTransition);
1.91 + enters = leaves = depth = 0;
1.92 + EXEC("f(3)");
1.93 + CHECK_EQUAL(enters, 1+3);
1.94 + CHECK_EQUAL(leaves, 1+3);
1.95 + CHECK_EQUAL(depth, 0);
1.96 + interpreted = enters = leaves = depth = 0;
1.97 +
1.98 + // Check calls invoked while running on trace -- or now, perhaps on
1.99 + // IonMonkey's equivalent, if it ever starts to exist?
1.100 + EXEC("function g () { ++x; }");
1.101 + interpreted = enters = leaves = depth = 0;
1.102 + EXEC("for (i = 0; i < 5000; ++i) { g(); }");
1.103 + CHECK_EQUAL(enters, 1+5000);
1.104 + CHECK_EQUAL(leaves, 1+5000);
1.105 + CHECK_EQUAL(depth, 0);
1.106 +
1.107 + // Test nesting callbacks via JS_GetFunctionCallback()
1.108 + JS_SetFunctionCallback(cx, funcTransition);
1.109 + innerCallback = JS_GetFunctionCallback(cx);
1.110 + JS_SetFunctionCallback(cx, funcTransitionOverlay);
1.111 +
1.112 + EXEC("x = 0; function f (n) { if (n > 1) { f(n - 1); } }");
1.113 + interpreted = enters = leaves = depth = overlays = 0;
1.114 +
1.115 + EXEC("42.5");
1.116 + CHECK_EQUAL(enters, 1);
1.117 + CHECK_EQUAL(leaves, 1);
1.118 + CHECK_EQUAL(depth, 0);
1.119 + CHECK_EQUAL(overlays, enters + leaves);
1.120 + interpreted = enters = leaves = depth = overlays = 0;
1.121 +#endif
1.122 +
1.123 + // Uncomment this to validate whether you're hitting all runmodes (interp,
1.124 + // mjit, ...?) Unfortunately, that still doesn't cover all
1.125 + // transitions between the various runmodes, but it's a start.
1.126 + //JS_DumpAllProfiles(cx);
1.127 +
1.128 + return true;
1.129 +}
1.130 +
1.131 +// Make sure that the method jit is enabled.
1.132 +// We'll probably want to test in all modes.
1.133 +virtual
1.134 +JSContext *createContext()
1.135 +{
1.136 + JSContext *cx = JSAPITest::createContext();
1.137 + if (!cx)
1.138 + return nullptr;
1.139 + JS::RuntimeOptionsRef(cx).setBaseline(true)
1.140 + .setIon(true);
1.141 + return cx;
1.142 +}
1.143 +
1.144 +END_TEST(testFuncCallback_bug507012)
