/* -*- 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/. */
// This class is useful when something on one thread needs to keep alive // a JS Object from another thread. If they are both on the same thread, the // owning class should instead be made a cycle collected SCRIPT_HOLDER class. // This object should only be AddRefed and Released on the same thread as // mJSObject. // // Note that this keeps alive the JS object until it goes away, so be sure not // to create cycles that keep alive the holder. // // JSObjectHolder is ISupports to make it usable with // NS_ReleaseOnMainThread. class JSObjectHolder final : public nsISupports { public:
JSObjectHolder(JSContext* aCx, JSObject* aObject) : mJSObject(aCx, aObject) {}
NS_DECL_ISUPPORTS
JSObject* GetJSObject() { return mJSObject; }
private:
~JSObjectHolder() = default;
JS::PersistentRooted<JSObject*> mJSObject;
};
} // namespace mozilla
#endif// mozilla_JSObjectHolder_h
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