1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/js/src/jsapi-tests/testAddPropertyPropcache.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,74 @@
1.4 +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
1.5 + * vim: set ts=8 sts=4 et sw=4 tw=99:
1.6 + */
1.7 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.8 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.9 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.10 +
1.11 +#include "jsapi-tests/tests.h"
1.12 +
1.13 +static int callCount = 0;
1.14 +
1.15 +static bool
1.16 +AddProperty(JSContext *cx, JS::HandleObject obj, JS::HandleId id, JS::MutableHandleValue vp)
1.17 +{
1.18 + callCount++;
1.19 + return true;
1.20 +}
1.21 +
1.22 +static const JSClass AddPropertyClass = {
1.23 + "AddPropertyTester",
1.24 + 0,
1.25 + AddProperty,
1.26 + JS_DeletePropertyStub, /* delProperty */
1.27 + JS_PropertyStub, /* getProperty */
1.28 + JS_StrictPropertyStub, /* setProperty */
1.29 + JS_EnumerateStub,
1.30 + JS_ResolveStub,
1.31 + JS_ConvertStub
1.32 +};
1.33 +
1.34 +BEGIN_TEST(testAddPropertyHook)
1.35 +{
1.36 + /*
1.37 + * Do the test a bunch of times, because sometimes we seem to randomly
1.38 + * miss the propcache.
1.39 + */
1.40 + static const int ExpectedCount = 100;
1.41 +
1.42 + JS::RootedObject obj(cx, JS_NewObject(cx, nullptr, JS::NullPtr(), JS::NullPtr()));
1.43 + CHECK(obj);
1.44 + JS::RootedValue proto(cx, OBJECT_TO_JSVAL(obj));
1.45 + JS_InitClass(cx, global, obj, &AddPropertyClass, nullptr, 0, nullptr, nullptr, nullptr,
1.46 + nullptr);
1.47 +
1.48 + obj = JS_NewArrayObject(cx, 0);
1.49 + CHECK(obj);
1.50 + JS::RootedValue arr(cx, OBJECT_TO_JSVAL(obj));
1.51 +
1.52 + CHECK(JS_DefineProperty(cx, global, "arr", arr, JSPROP_ENUMERATE,
1.53 + JS_PropertyStub, JS_StrictPropertyStub));
1.54 +
1.55 + for (int i = 0; i < ExpectedCount; ++i) {
1.56 + obj = JS_NewObject(cx, &AddPropertyClass, JS::NullPtr(), JS::NullPtr());
1.57 + CHECK(obj);
1.58 + JS::RootedValue vobj(cx, OBJECT_TO_JSVAL(obj));
1.59 + JS::RootedObject arrObj(cx, JSVAL_TO_OBJECT(arr));
1.60 + CHECK(JS_DefineElement(cx, arrObj, i, vobj,
1.61 + JS_PropertyStub, JS_StrictPropertyStub,
1.62 + JSPROP_ENUMERATE));
1.63 + }
1.64 +
1.65 + // Now add a prop to each of the objects, but make sure to do
1.66 + // so at the same bytecode location so we can hit the propcache.
1.67 + EXEC("'use strict'; \n"
1.68 + "for (var i = 0; i < arr.length; ++i) \n"
1.69 + " arr[i].prop = 42; \n"
1.70 + );
1.71 +
1.72 + CHECK(callCount == ExpectedCount);
1.73 +
1.74 + return true;
1.75 +}
1.76 +END_TEST(testAddPropertyHook)
1.77 +
