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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * 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 file incorporates work covered by the following license notice:
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed
+ * with this work for additional information regarding copyright
+ * ownership. The ASF licenses this file to you under the Apache
+ * License, Version 2.0 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#ifndef INCLUDED_CPPUHELPER_IMPLBASE_HXX
+#define INCLUDED_CPPUHELPER_IMPLBASE_HXX
+
+#include "sal/config.h"
+
+#include <cstddef>
+#include <utility>
+
+#include "com/sun/star/lang/XTypeProvider.hpp"
+#include "com/sun/star/uno/Any.h"
+#include "com/sun/star/uno/Sequence.hxx"
+#include "com/sun/star/uno/Type.h"
+#include "cppuhelper/implbase_ex.hxx"
+#include "cppuhelper/weak.hxx"
+#include "rtl/instance.hxx"
+#include "sal/types.h"
+
+#if defined LIBO_INTERNAL_ONLY
+
+// A replacement for ImplHelperN has deliberately been left out, as ImplHelperN
+// is unlikely ever be a better choice than WeakImplHelper, so all their
+// existing uses are probably confused and should use WeakImplHelper instead.
+//
+// Replacements for WeakAggImplHelperN and AggImplInheritanceHelperN have
+// deliberately been left out, as the underlying aggregation mechanism is known
+// broken in general and should not be used.
+
+namespace cppu {
+
+/// @cond INTERNAL
+
+namespace detail {
+
+template<std::size_t N> struct class_dataN {
+ sal_Int16 m_nTypes;
+ sal_Bool m_storedTypeRefs;
+ sal_Bool m_storedId;
+ sal_Int8 m_id[16];
+ type_entry m_typeEntries[N + 1];
+};
+
+template<typename Impl, typename... Ifc> struct ImplClassData {
+ class_data * operator ()() {
+ static class_dataN<sizeof... (Ifc)> s_cd = {
+ sizeof... (Ifc) + 1, false, false, {},
+ {
+ { { Ifc::static_type },
+ (reinterpret_cast<sal_IntPtr>(
+ static_cast<Ifc *>(reinterpret_cast<Impl *>(16)))
+ - 16)
+ }...,
+ CPPUHELPER_DETAIL_TYPEENTRY(css::lang::XTypeProvider)
+ }
+ };
+ return reinterpret_cast<class_data *>(&s_cd);
+ }
+};
+
+}
+
+/// @endcond
+
+/** Implementation helper implementing interfaces
+ css::uno::XInterface, css::lang::XTypeProvider, and
+ css::uno::XWeak (through cppu::OWeakObject).
+
+ @derive
+ Inherit from this class giving your interface(s) to be implemented as
+ template argument(s).
+*/
+template<typename... Ifc>
+class SAL_NO_VTABLE SAL_DLLPUBLIC_TEMPLATE WeakImplHelper:
+ public OWeakObject, public css::lang::XTypeProvider, public Ifc...
+{
+ struct cd:
+ rtl::StaticAggregate<
+ class_data, detail::ImplClassData<WeakImplHelper, Ifc...>>
+ {};
+
+protected:
+ WeakImplHelper() {}
+
+ virtual ~WeakImplHelper() override {}
+
+public:
+ WeakImplHelper(WeakImplHelper const &) = default;
+ WeakImplHelper(WeakImplHelper &&) = default;
+ WeakImplHelper & operator =(WeakImplHelper const &) = default;
+ WeakImplHelper & operator =(WeakImplHelper &&) = default;
+
+ css::uno::Any SAL_CALL queryInterface(css::uno::Type const & aType) override
+ { return WeakImplHelper_query(aType, cd::get(), this, this); }
+
+ void SAL_CALL acquire() SAL_NOEXCEPT override { OWeakObject::acquire(); }
+
+ void SAL_CALL release() SAL_NOEXCEPT override { OWeakObject::release(); }
+
+ css::uno::Sequence<css::uno::Type> SAL_CALL getTypes() override
+ { return WeakImplHelper_getTypes(cd::get()); }
+
+ css::uno::Sequence<sal_Int8> SAL_CALL getImplementationId() override
+ { return css::uno::Sequence<sal_Int8>(); }
+};
+
+/** Implementation helper implementing interfaces
+ css::uno::XInterface and css::lang::XTypeProvider
+ inheriting from a BaseClass.
+
+ All acquire() and release() calls are delegated to the BaseClass. Upon
+ queryInterface(), if a demanded interface is not supported by this class
+ directly, the request is delegated to the BaseClass.
+
+ @attention
+ The BaseClass has to be complete in the sense that
+ css::uno::XInterface and css::lang::XTypeProvider are
+ implemented properly.
+
+ @derive
+ Inherit from this class giving your additional interface(s) to be
+ implemented as template argument(s).
+*/
+template<typename BaseClass, typename... Ifc>
+class SAL_NO_VTABLE SAL_DLLPUBLIC_TEMPLATE ImplInheritanceHelper:
+ public BaseClass, public Ifc...
+{
+ struct cd:
+ rtl::StaticAggregate<
+ class_data, detail::ImplClassData<ImplInheritanceHelper, Ifc...>>
+ {};
+
+protected:
+ template<typename... Arg> ImplInheritanceHelper(Arg &&... arg):
+ BaseClass(std::forward<Arg>(arg)...)
+ {}
+
+ virtual ~ImplInheritanceHelper() {}
+
+public:
+ ImplInheritanceHelper(ImplInheritanceHelper const &) = default;
+ ImplInheritanceHelper(ImplInheritanceHelper &&) = default;
+ ImplInheritanceHelper & operator =(ImplInheritanceHelper const &) = default;
+ ImplInheritanceHelper & operator =(ImplInheritanceHelper &&) = default;
+
+ css::uno::Any SAL_CALL queryInterface(css::uno::Type const & aType) override
+ {
+ css::uno::Any ret(ImplHelper_queryNoXInterface(aType, cd::get(), this));
+ return ret.hasValue() ? ret : BaseClass::queryInterface(aType);
+ }
+
+ void SAL_CALL acquire() SAL_NOEXCEPT override { BaseClass::acquire(); }
+
+ void SAL_CALL release() SAL_NOEXCEPT override { BaseClass::release(); }
+
+ css::uno::Sequence<css::uno::Type> SAL_CALL getTypes() override
+ { return ImplInhHelper_getTypes(cd::get(), BaseClass::getTypes()); }
+
+ css::uno::Sequence<sal_Int8> SAL_CALL getImplementationId() override
+ { return css::uno::Sequence<sal_Int8>(); }
+};
+
+}
+
+#endif
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */