The Tor Browser / file comparison
comparison: js/src/jsapi-tests/testAddPropertyPropcache.cpp
js/src/jsapi-tests/testAddPropertyPropcache.cpp
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
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| -1:000000000000 | 0:3bcad258cfa3 |
|---|---|
| 1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- | |
| 2 * vim: set ts=8 sts=4 et sw=4 tw=99: | |
| 3 */ | |
| 4 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 5 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 6 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 7 | |
| 8 #include "jsapi-tests/tests.h" | |
| 9 | |
| 10 static int callCount = 0; | |
| 11 | |
| 12 static bool | |
| 13 AddProperty(JSContext *cx, JS::HandleObject obj, JS::HandleId id, JS::MutableHandleValue vp) | |
| 14 { | |
| 15 callCount++; | |
| 16 return true; | |
| 17 } | |
| 18 | |
| 19 static const JSClass AddPropertyClass = { | |
| 20 "AddPropertyTester", | |
| 21 0, | |
| 22 AddProperty, | |
| 23 JS_DeletePropertyStub, /* delProperty */ | |
| 24 JS_PropertyStub, /* getProperty */ | |
| 25 JS_StrictPropertyStub, /* setProperty */ | |
| 26 JS_EnumerateStub, | |
| 27 JS_ResolveStub, | |
| 28 JS_ConvertStub | |
| 29 }; | |
| 30 | |
| 31 BEGIN_TEST(testAddPropertyHook) | |
| 32 { | |
| 33 /* | |
| 34 * Do the test a bunch of times, because sometimes we seem to randomly | |
| 35 * miss the propcache. | |
| 36 */ | |
| 37 static const int ExpectedCount = 100; | |
| 38 | |
| 39 JS::RootedObject obj(cx, JS_NewObject(cx, nullptr, JS::NullPtr(), JS::NullPtr())); | |
| 40 CHECK(obj); | |
| 41 JS::RootedValue proto(cx, OBJECT_TO_JSVAL(obj)); | |
| 42 JS_InitClass(cx, global, obj, &AddPropertyClass, nullptr, 0, nullptr, nullptr, nullptr, | |
| 43 nullptr); | |
| 44 | |
| 45 obj = JS_NewArrayObject(cx, 0); | |
| 46 CHECK(obj); | |
| 47 JS::RootedValue arr(cx, OBJECT_TO_JSVAL(obj)); | |
| 48 | |
| 49 CHECK(JS_DefineProperty(cx, global, "arr", arr, JSPROP_ENUMERATE, | |
| 50 JS_PropertyStub, JS_StrictPropertyStub)); | |
| 51 | |
| 52 for (int i = 0; i < ExpectedCount; ++i) { | |
| 53 obj = JS_NewObject(cx, &AddPropertyClass, JS::NullPtr(), JS::NullPtr()); | |
| 54 CHECK(obj); | |
| 55 JS::RootedValue vobj(cx, OBJECT_TO_JSVAL(obj)); | |
| 56 JS::RootedObject arrObj(cx, JSVAL_TO_OBJECT(arr)); | |
| 57 CHECK(JS_DefineElement(cx, arrObj, i, vobj, | |
| 58 JS_PropertyStub, JS_StrictPropertyStub, | |
| 59 JSPROP_ENUMERATE)); | |
| 60 } | |
| 61 | |
| 62 // Now add a prop to each of the objects, but make sure to do | |
| 63 // so at the same bytecode location so we can hit the propcache. | |
| 64 EXEC("'use strict'; \n" | |
| 65 "for (var i = 0; i < arr.length; ++i) \n" | |
| 66 " arr[i].prop = 42; \n" | |
| 67 ); | |
| 68 | |
| 69 CHECK(callCount == ExpectedCount); | |
| 70 | |
| 71 return true; | |
| 72 } | |
| 73 END_TEST(testAddPropertyHook) | |
| 74 |
