1 files changed, 101 insertions, 0 deletions
diff --git a/include/comphelper/scopeguard.hxx b/include/comphelper/scopeguard.hxx
new file mode 100644
index 000000000..a361c7c5f
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+++ b/include/comphelper/scopeguard.hxx
@@ -0,0 +1,101 @@
+/* -*- 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_COMPHELPER_SCOPEGUARD_HXX
+#define INCLUDED_COMPHELPER_SCOPEGUARD_HXX
+
+#include <sal/log.hxx>
+#include <com/sun/star/uno/Exception.hpp>
+
+
+// For some reason, Android buildbot issues -Werror like this:
+//   In file included from
+//   /home/android/lo/master-android-arm/filter/source/xmlfilteradaptor/XmlFilterAdaptor.cxx:50:
+//   /home/android/lo/master-android-arm/include/comphelper/scopeguard.hxx:36:14:
+//   error: function 'comphelper::<deduction guide for ScopeGuard><(lambda at
+//   /home/android/lo/master-android-arm/filter/source/xmlfilteradaptor/XmlFilterAdaptor.cxx:146:34)>'
+//   has internal linkage but is not defined [-Werror,-Wundefined-internal]
+//       explicit ScopeGuard( Func && func ) : m_func( std::move(func) ) {}
+//                ^
+//   /home/android/lo/master-android-arm/filter/source/xmlfilteradaptor/XmlFilterAdaptor.cxx:146:28:
+//   note: used here
+//       comphelper::ScopeGuard guard([&]() {
+//                              ^
+#ifdef ANDROID
+#if defined __clang__
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wundefined-internal"
+#endif
+#endif
+
+
+namespace comphelper {
+
+/** ScopeGuard to ease writing exception-safe code.
+ */
+template <class Func> class ScopeGuard
+{
+public:
+    /** @param func function object to be executed in dtor
+    */
+    explicit ScopeGuard( Func && func ) : m_func( std::move(func) ) {}
+
+    ~ScopeGuard()
+    {
+        if (m_bDismissed)
+            return;
+        try
+        {
+            m_func();
+        }
+        catch (css::uno::Exception& exc)
+        {
+            SAL_WARN("comphelper", "UNO exception occurred: " << exc);
+        }
+        catch (...)
+        {
+            SAL_WARN("comphelper", "unknown exception occurred!");
+        }
+    }
+
+    /** Dismisses the scope guard, i.e. the function won't
+        be executed.
+    */
+    void dismiss() { m_bDismissed = true; }
+
+private:
+    // noncopyable until we have good reasons...
+    ScopeGuard(const ScopeGuard&) = delete;
+    ScopeGuard& operator=(const ScopeGuard&) = delete;
+
+    Func m_func;
+    bool m_bDismissed = false;
+};
+
+} // namespace comphelper
+
+#ifdef ANDROID
+#if defined __clang__
+#pragma clang diagnostic pop
+#endif
+#endif
+
+#endif // ! defined(INCLUDED_COMPHELPER_SCOPEGUARD_HXX)
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */