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diff --git a/extensions/source/ole/windata.hxx b/extensions/source/ole/windata.hxx
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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 .
+ */
+#pragma once
+
+#include <oleidl.h>
+
+#if defined __clang__
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wall"
+#pragma clang diagnostic ignored "-Wextra"
+#pragma clang diagnostic ignored "-Wignored-attributes"
+#pragma clang diagnostic ignored "-Wint-to-pointer-cast"
+#pragma clang diagnostic ignored "-Winvalid-noreturn"
+#pragma clang diagnostic ignored "-Wmicrosoft"
+#pragma clang diagnostic ignored "-Wnon-pod-varargs"
+#pragma clang diagnostic ignored "-Wnon-virtual-dtor"
+#endif
+
+#include <atlbase.h>
+
+#if defined __clang__
+#pragma clang diagnostic pop
+#endif
+
+#include <osl/diagnose.h>
+
+//Wrapper for VARDESC
+class VarDesc
+{
+ VARDESC* operator = (const VarDesc*);
+ VarDesc(const VarDesc&);
+// Construction
+public:
+ CComPtr< ITypeInfo > m_pTypeInfo;
+ VARDESC* m_pVarDesc;
+
+ explicit VarDesc(ITypeInfo* pTypeInfo) :
+ m_pTypeInfo(pTypeInfo),
+ m_pVarDesc(nullptr)
+ {
+ OSL_ASSERT(pTypeInfo);
+ }
+ ~VarDesc()
+ {
+ if (m_pVarDesc != nullptr)
+ {
+ m_pTypeInfo->ReleaseVarDesc(m_pVarDesc);
+ }
+ }
+
+ VARDESC* operator->()
+ {
+ return m_pVarDesc;
+ }
+
+ VARDESC** operator&()
+ {
+ return &m_pVarDesc;
+ }
+
+ operator VARDESC* ()
+ {
+ return m_pVarDesc;
+ }
+};
+
+//Wrapper for FUNCDESC structure
+class FuncDesc
+{
+ FUNCDESC* operator = (const FuncDesc &);
+ FuncDesc(const FuncDesc&);
+ CComPtr<ITypeInfo> m_pTypeInfo;
+ FUNCDESC * m_pFuncDesc;
+
+public:
+
+ explicit FuncDesc(ITypeInfo * pTypeInfo) :
+ m_pTypeInfo(pTypeInfo),
+ m_pFuncDesc(nullptr)
+ {
+ OSL_ASSERT(pTypeInfo);
+ }
+ ~FuncDesc()
+ {
+ ReleaseFUNCDESC();
+ }
+
+ FUNCDESC* operator -> ()
+ {
+ return m_pFuncDesc;
+ }
+
+ FUNCDESC** operator & ()
+ {
+ return & m_pFuncDesc;
+ }
+
+ operator FUNCDESC* ()
+ {
+ return m_pFuncDesc;
+ }
+
+ FUNCDESC* operator = (FUNCDESC* pDesc)
+ {
+ ReleaseFUNCDESC();
+ m_pFuncDesc = pDesc;
+ return m_pFuncDesc;
+ }
+ FUNCDESC* Detach()
+ {
+ FUNCDESC* pDesc = m_pFuncDesc;
+ m_pFuncDesc = nullptr;
+ return pDesc;
+ }
+
+ void ReleaseFUNCDESC()
+ {
+ if (m_pFuncDesc != nullptr)
+ {
+ m_pTypeInfo->ReleaseFuncDesc(m_pFuncDesc);
+ }
+ m_pFuncDesc = nullptr;
+ }
+};
+//Wrapper for EXCEPINFO structure
+class ExcepInfo : public EXCEPINFO
+{
+ EXCEPINFO* operator = (const ExcepInfo& );
+ ExcepInfo(const ExcepInfo &);
+public:
+ ExcepInfo()
+ : EXCEPINFO{}
+ {
+ }
+ ~ExcepInfo()
+ {
+ if (bstrSource != nullptr)
+ ::SysFreeString(bstrSource);
+ if (bstrDescription != nullptr)
+ ::SysFreeString(bstrDescription);
+ if (bstrHelpFile != nullptr)
+ ::SysFreeString(bstrHelpFile);
+ }
+};
+
+//Wrapper for TYPEATTR
+class TypeAttr
+{
+ TYPEATTR* operator = (const TypeAttr &);
+ TypeAttr(const TypeAttr &);
+public:
+ CComPtr< ITypeInfo > m_pTypeInfo;
+ TYPEATTR* m_pTypeAttr;
+
+ explicit TypeAttr(ITypeInfo* pTypeInfo) :
+ m_pTypeInfo( pTypeInfo ),
+ m_pTypeAttr( nullptr )
+ {
+ OSL_ASSERT(pTypeInfo);
+ }
+ ~TypeAttr() noexcept
+ {
+ if (m_pTypeAttr != nullptr)
+ {
+ m_pTypeInfo->ReleaseTypeAttr(m_pTypeAttr);
+ }
+ }
+
+ TYPEATTR** operator&() noexcept
+ {
+ return &m_pTypeAttr;
+ }
+
+ TYPEATTR* operator->() noexcept
+ {
+ return m_pTypeAttr;
+ }
+};
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */