testPropCache.cpp - mozsearch

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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-

 * vim: set ts=8 sts=2 et sw=2 tw=80:

*/

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

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

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

#include "js/PropertyAndElement.h"  // JS_DefineObject

#include "jsapi-tests/tests.h"

static int g_counter;

static bool CounterAdd(JSContext* cx, JS::HandleObject obj, JS::HandleId id,

                       JS::HandleValue v) {

  g_counter++;

  return true;

static const JSClassOps CounterClassOps = {

    CounterAdd,  // addProperty

    nullptr,     // delProperty

    nullptr,     // enumerate

    nullptr,     // newEnumerate

    nullptr,     // resolve

    nullptr,     // mayResolve

    nullptr,     // finalize

    nullptr,     // call

    nullptr,     // construct

    nullptr,     // trace

};

static const JSClass CounterClass = {"Counter", /* name */

                                     0,         /* flags */

                                     &CounterClassOps};

BEGIN_TEST(testPropCache_bug505798) {

  g_counter = 0;

  EXEC("var x = {};");

  CHECK(JS_DefineObject(cx, global, "y", &CounterClass, JSPROP_ENUMERATE));

  EXEC(

      "var arr = [x, y];\n"

      "for (var i = 0; i < arr.length; i++)\n"

      "    arr[i].p = 1;\n");

  CHECK_EQUAL(g_counter, 1);

  return true;

END_TEST(testPropCache_bug505798)