The Tor Browser: js/src/jsapi-tests/testSlowScript.cpp@6474c204b198

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

     1 /* This Source Code Form is subject to the terms of the Mozilla Public

     2  * License, v. 2.0. If a copy of the MPL was not distributed with this

     3  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

     5 #include "jsapi-tests/tests.h"

     7 static bool

     8 InterruptCallback(JSContext *cx)

9 {

    10     return false;

    11 }

    13 static unsigned sRemain;

    15 static bool

    16 RequestInterruptCallback(JSContext *cx, unsigned argc, jsval *vp)

    17 {

    18     JS::CallArgs args = JS::CallArgsFromVp(argc, vp);

    19     if (!sRemain--)

    20         JS_RequestInterruptCallback(JS_GetRuntime(cx));

    21     args.rval().setUndefined();

    22     return true;

    23 }

    25 BEGIN_TEST(testSlowScript)

    26 {

    27     JS_SetInterruptCallback(cx, InterruptCallback);

    28     JS_DefineFunction(cx, global, "requestInterruptCallback", RequestInterruptCallback, 0, 0);

    30     test("while (true)"

    31          "  for (i in [0,0,0,0])"

    32          "    requestInterruptCallback();");

    34     test("while (true)"

    35          "  for (i in [0,0,0,0])"

    36          "    for (j in [0,0,0,0])"

    37          "      requestInterruptCallback();");

    39     test("while (true)"

    40          "  for (i in [0,0,0,0])"

    41          "    for (j in [0,0,0,0])"

    42          "      for (k in [0,0,0,0])"

    43          "        requestInterruptCallback();");

    45     test("function f() { while (true) yield requestInterruptCallback() }"

    46          "for (i in f()) ;");

    48     test("function f() { while (true) yield 1 }"

    49          "for (i in f())"

    50          "  requestInterruptCallback();");

    52     test("(function() {"

    53          "  while (true)"

    54          "    let (x = 1) { eval('requestInterruptCallback()'); }"

    55          "})()");

    57     return true;

    58 }

    60 bool

    61 test(const char *bytes)

    62 {

    63     jsval v;

    65     JS_SetOptions(cx, JS_GetOptions(cx) & ~(JSOPTION_METHODJIT | JSOPTION_METHODJIT_ALWAYS));

    66     sRemain = 0;

    67     CHECK(!evaluate(bytes, __FILE__, __LINE__, &v));

    68     CHECK(!JS_IsExceptionPending(cx));

    70     sRemain = 1000;

    71     CHECK(!evaluate(bytes, __FILE__, __LINE__, &v));

    72     CHECK(!JS_IsExceptionPending(cx));

    74     JS_SetOptions(cx, JS_GetOptions(cx) | JSOPTION_METHODJIT | JSOPTION_METHODJIT_ALWAYS);

    76     sRemain = 0;

    77     CHECK(!evaluate(bytes, __FILE__, __LINE__, &v));

    78     CHECK(!JS_IsExceptionPending(cx));

    80     sRemain = 1000;

    81     CHECK(!evaluate(bytes, __FILE__, __LINE__, &v));

    82     CHECK(!JS_IsExceptionPending(cx));

    84     return true;

    85 }

    86 END_TEST(testSlowScript)

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