gfx/src/nsThebesGfxFactory.cpp
author Jan de Mooij <jdemooij@mozilla.com>
Sat, 12 Jan 2019 10:50:04 +0000
changeset 453631 cfa1c48c717048f00eb4811b5719cd716eb1e5b3
parent 448947 6f3709b3878117466168c40affa7bca0b60cf75b
child 459123 dbbadd12f84945d8236d61074fadc07e5e0deaa1
permissions -rw-r--r--
Bug 1518753 part 5 - Stop using JSProtoKey for initial shapes. r=tcampbell I added this optimization in bug 1299107 to share more shapes across compartments. Unfortunately this doesn't play well with same-compartment realms (ICs can misbehave) because it relies on compartments being isolated from each other. I think we should remove this optimization: * Fixing the IC issue is impossible without deoptimizing everything. * I added it mainly for chrome globals. The shared-JSM-global work has eliminated the need for this there. * Same-compartment realms win memory back by eliminating CCWs etc. * It's quite a lot of complicated code. Differential Revision: https://phabricator.services.mozilla.com/D16170

/* -*- 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 "gfxPlatform.h"         // for gfxPlatform
#include "mozilla/Assertions.h"  // for MOZ_ASSERT_HELPER2
#include "mozilla/Attributes.h"  // for final
#include "mozilla/Module.h"      // for Module, Module::CIDEntry, etc
#include "mozilla/ModuleUtils.h"
#include "mozilla/mozalloc.h"        // for operator new
#include "nsCOMPtr.h"                // for nsCOMPtr
#include "nsError.h"                 // for NS_ERROR_NO_AGGREGATION, etc
#include "nsGfxCIID.h"               // for NS_FONT_ENUMERATOR_CID, etc
#include "nsID.h"                    // for NS_DEFINE_NAMED_CID, etc
#include "nsISupports.h"             // for NS_DECL_ISUPPORTS, etc
#include "nsThebesFontEnumerator.h"  // for nsThebesFontEnumerator

NS_GENERIC_FACTORY_CONSTRUCTOR(nsThebesFontEnumerator)

NS_DEFINE_NAMED_CID(NS_FONT_ENUMERATOR_CID);

static const mozilla::Module::CIDEntry kThebesCIDs[] = {
    {&kNS_FONT_ENUMERATOR_CID, false, nullptr,
     nsThebesFontEnumeratorConstructor},
    {nullptr}};

static const mozilla::Module::ContractIDEntry kThebesContracts[] = {
    {"@mozilla.org/gfx/fontenumerator;1", &kNS_FONT_ENUMERATOR_CID}, {nullptr}};

static const mozilla::Module kThebesModule = {mozilla::Module::kVersion,
                                              kThebesCIDs,
                                              kThebesContracts,
                                              nullptr,
                                              nullptr,
                                              nullptr,
                                              nullptr};

NSMODULE_DEFN(nsGfxModule) = &kThebesModule;