зеркало из https://github.com/mozilla/gecko-dev.git
83 строки
2.4 KiB
C++
83 строки
2.4 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "IDBWrapperCache.h"
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#include "mozilla/HoldDropJSObjects.h"
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#include "nsCOMPtr.h"
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#include "nsIScriptGlobalObject.h"
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#include "nsPIDOMWindow.h"
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namespace mozilla {
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namespace dom {
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namespace indexedDB {
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NS_IMPL_CYCLE_COLLECTION_CLASS(IDBWrapperCache)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(IDBWrapperCache,
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DOMEventTargetHelper)
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// Don't need NS_IMPL_CYCLE_COLLECTION_TRAVERSE_SCRIPT_OBJECTS because
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// DOMEventTargetHelper does it for us.
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
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NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED(IDBWrapperCache,
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DOMEventTargetHelper)
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if (tmp->mScriptOwner) {
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tmp->mScriptOwner = nullptr;
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mozilla::DropJSObjects(tmp);
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}
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NS_IMPL_CYCLE_COLLECTION_UNLINK_END
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NS_IMPL_CYCLE_COLLECTION_TRACE_BEGIN_INHERITED(IDBWrapperCache,
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DOMEventTargetHelper)
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// Don't need NS_IMPL_CYCLE_COLLECTION_TRACE_PRESERVED_WRAPPER because
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// DOMEventTargetHelper does it for us.
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NS_IMPL_CYCLE_COLLECTION_TRACE_JS_MEMBER_CALLBACK(mScriptOwner)
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NS_IMPL_CYCLE_COLLECTION_TRACE_END
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NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(IDBWrapperCache)
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NS_INTERFACE_MAP_END_INHERITING(DOMEventTargetHelper)
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NS_IMPL_ADDREF_INHERITED(IDBWrapperCache, DOMEventTargetHelper)
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NS_IMPL_RELEASE_INHERITED(IDBWrapperCache, DOMEventTargetHelper)
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IDBWrapperCache::IDBWrapperCache(DOMEventTargetHelper* aOwner)
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: DOMEventTargetHelper(aOwner), mScriptOwner(nullptr)
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{ }
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IDBWrapperCache::IDBWrapperCache(nsPIDOMWindow* aOwner)
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: DOMEventTargetHelper(aOwner), mScriptOwner(nullptr)
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{ }
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IDBWrapperCache::~IDBWrapperCache()
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{
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mScriptOwner = nullptr;
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ReleaseWrapper(this);
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mozilla::DropJSObjects(this);
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}
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void
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IDBWrapperCache::SetScriptOwner(JSObject* aScriptOwner)
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{
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MOZ_ASSERT(aScriptOwner);
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mScriptOwner = aScriptOwner;
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mozilla::HoldJSObjects(this);
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}
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#ifdef DEBUG
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void
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IDBWrapperCache::AssertIsRooted() const
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{
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MOZ_ASSERT(IsJSHolder(const_cast<IDBWrapperCache*>(this)),
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"Why aren't we rooted?!");
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}
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#endif
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} // namespace indexedDB
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} // namespace dom
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} // namespace mozilla
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