execute move of global headers

see https://gerrit.libreoffice.org/#/c/3367/
and Change-Id: I00c96fa77d04b33a6f8c8cd3490dfcd9bdc9e84a for details

Change-Id: I199a75bc4042af20817265d5ef85b1134a96ff5a

1 files changed, 138 insertions, 0 deletions

diff --git a/include/comphelper/unwrapargs.hxx b/include/comphelper/unwrapargs.hxx
new file mode 100644
index 000000000000..c4885f3883d9
--- /dev/null
+++ b/include/comphelper/unwrapargs.hxx
@@ -0,0 +1,138 @@
+/* -*- 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 COMPHELPER_UNWRAPARGS_HXX_INCLUDED
+#define COMPHELPER_UNWRAPARGS_HXX_INCLUDED
+
+#include "rtl/ustrbuf.hxx"
+#include "com/sun/star/uno/Sequence.hxx"
+#include "com/sun/star/lang/IllegalArgumentException.hpp"
+#include "boost/optional.hpp"
+#include "boost/preprocessor/cat.hpp"
+#include "boost/preprocessor/repetition.hpp"
+#include "boost/preprocessor/arithmetic/add.hpp"
+#include "cppu/unotype.hxx"
+
+namespace comphelper {
+
+//
+// generating helper functions to unwrap the service's argument sequence:
+//
+
+/// @internal
+namespace detail {
+
+template <typename T>
+inline void extract(
+    ::com::sun::star::uno::Sequence< ::com::sun::star::uno::Any> const& seq,
+    sal_Int32 nArg, T & v,
+    ::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface>
+    const& xErrorContext )
+{
+    if (nArg >= seq.getLength()) {
+        throw ::com::sun::star::lang::IllegalArgumentException(
+            OUString( "No such argument available!"),
+            xErrorContext, static_cast<sal_Int16>(nArg) );
+    }
+    if (! (seq[nArg] >>= v)) {
+        OUStringBuffer buf;
+        buf.append( "Cannot extract ANY { " );
+        buf.append( seq[nArg].getValueType().getTypeName() );
+        buf.append( " } to " );
+        buf.append( ::cppu::UnoType<T>::get().getTypeName() );
+        buf.append( static_cast<sal_Unicode>('!') );
+        throw ::com::sun::star::lang::IllegalArgumentException(
+            buf.makeStringAndClear(), xErrorContext,
+            static_cast<sal_Int16>(nArg) );
+    }
+}
+
+template <typename T>
+inline void extract(
+    ::com::sun::star::uno::Sequence< ::com::sun::star::uno::Any> const& seq,
+    sal_Int32 nArg, ::boost::optional<T> & v,
+    ::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface>
+    const& xErrorContext )
+{
+    if (nArg < seq.getLength()) {
+        T t;
+        extract( seq, nArg, t, xErrorContext );
+        v.reset( t );
+    }
+}
+
+} // namespace detail
+
+#define COMPHELPER_UNWRAPARGS_extract(z_, n_, unused_) \
+    detail::extract( seq, n_, BOOST_PP_CAT(v, n_), xErrorContext );
+#define COMPHELPER_UNWRAPARGS_args(z_, n_, unused_) \
+    BOOST_PP_CAT(T, n_) & BOOST_PP_CAT(v, n_)
+
+/** The following preprocessor repetitions generate functions like
+
+    <pre>
+        template <typename T0, typename T1, ...>
+        inline void unwrapArgs(
+            uno::Sequence<uno::Any> const& seq,
+            T0 & v0, T1 & v1, ...,
+            css::uno::Reference<css::uno::XInterface> const& xErrorContext =
+            css::uno::Reference<css::uno::XInterface>() );
+    </pre>
+    (full namespace qualification ::com::sun::star has been omitted
+    for brevity)
+
+    which unwraps the passed sequence's elements, assigning them to the
+    referenced values.  Specify optional arguments as boost::optional<T>.
+    If the length of the sequence is greater than the count of arguments,
+    then the latter sequence elements are ignored.
+    If too few arguments are given in the sequence and a missing argument is
+    no boost::optional<T>, then an lang::IllegalArgumentException is thrown
+    with the specified xErrorContext (defaults to null-ref).
+
+    The maximum number of service declarations can be set by defining
+    COMPHELPER_UNWRAPARGS_MAX_ARGS; its default is 12.
+*/
+#define COMPHELPER_UNWRAPARGS_make(z_, n_, unused_) \
+template < BOOST_PP_ENUM_PARAMS( BOOST_PP_ADD(n_, 1), typename T) > \
+inline void unwrapArgs( \
+    ::com::sun::star::uno::Sequence< ::com::sun::star::uno::Any > const& seq, \
+    BOOST_PP_ENUM(BOOST_PP_ADD(n_, 1), COMPHELPER_UNWRAPARGS_args, ~), \
+    ::com::sun::star::uno::Reference< \
+    ::com::sun::star::uno::XInterface> const& xErrorContext = \
+    ::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface>() ) \
+{ \
+    BOOST_PP_REPEAT(BOOST_PP_ADD(n_, 1), COMPHELPER_UNWRAPARGS_extract, ~) \
+}
+
+#ifndef COMPHELPER_UNWRAPARGS_MAX_ARGS
+#define COMPHELPER_UNWRAPARGS_MAX_ARGS 12
+#endif
+
+BOOST_PP_REPEAT(COMPHELPER_UNWRAPARGS_MAX_ARGS, COMPHELPER_UNWRAPARGS_make, ~)
+
+#undef COMPHELPER_UNWRAPARGS_MAX_ARGS
+#undef COMPHELPER_UNWRAPARGS_make
+#undef COMPHELPER_UNWRAPARGS_args
+#undef COMPHELPER_UNWRAPARGS_extract
+
+} // namespace comphelper
+
+#endif //  ! defined(COMPHELPER_UNWRAPARGS_HXX_INCLUDED)
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */