clang-tidy modernize-pass-by-value in filter

Change-Id: Id55c90665eaa29ee2ece07606429411549e06b8c
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/135242
Tested-by: Jenkins
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>

23 files changed, 64 insertions, 47 deletions

diff --git a/filter/source/config/cache/cacheupdatelistener.cxx b/filter/source/config/cache/cacheupdatelistener.cxx
index de9d5704e783..c613d0549185 100644
--- a/filter/source/config/cache/cacheupdatelistener.cxx
+++ b/filter/source/config/cache/cacheupdatelistener.cxx
@@ -26,15 +26,16 @@
 #include <unotools/configpaths.hxx>
 #include <rtl/ustring.hxx>
 #include <comphelper/processfactory.hxx>
+#include <utility>
 
 
 namespace filter::config{
 
 CacheUpdateListener::CacheUpdateListener(FilterCache &rFilterCache,
-                                         const css::uno::Reference< css::uno::XInterface >& xConfigAccess,
+                                         css::uno::Reference< css::uno::XInterface > xConfigAccess,
                                          FilterCache::EItemType eConfigType)
     : m_rCache(rFilterCache)
-    , m_xConfig(xConfigAccess)
+    , m_xConfig(std::move(xConfigAccess))
     , m_eConfigType(eConfigType)
 {
 }
diff --git a/filter/source/config/cache/cacheupdatelistener.hxx b/filter/source/config/cache/cacheupdatelistener.hxx
index fc0789af8dec..3870b9916859 100644
--- a/filter/source/config/cache/cacheupdatelistener.hxx
+++ b/filter/source/config/cache/cacheupdatelistener.hxx
@@ -75,7 +75,7 @@ class CacheUpdateListener : public ::cppu::WeakImplHelper< css::util::XChangesLi
                     specify the type of configuration.
          */
         CacheUpdateListener(FilterCache &rFilterCache,
-                            const css::uno::Reference< css::uno::XInterface >& xConfigAccess,
+                            css::uno::Reference< css::uno::XInterface > xConfigAccess,
                             FilterCache::EItemType eConfigType);
 
 
diff --git a/filter/source/config/cache/typedetection.cxx b/filter/source/config/cache/typedetection.cxx
index 1aae850fd535..ae8c194faef4 100644
--- a/filter/source/config/cache/typedetection.cxx
+++ b/filter/source/config/cache/typedetection.cxx
@@ -36,6 +36,7 @@
 #include <tools/urlobj.hxx>
 #include <comphelper/fileurl.hxx>
 #include <comphelper/sequence.hxx>
+#include <utility>
 
 #define DEBUG_TYPE_DETECTION 0
 
@@ -345,7 +346,7 @@ class FindByType
 {
     OUString maType;
 public:
-    explicit FindByType(const OUString& rType) : maType(rType) {}
+    explicit FindByType(OUString aType) : maType(std::move(aType)) {}
     bool operator() (const FlatDetectionInfo& rInfo) const
     {
         return rInfo.sType == maType;
diff --git a/filter/source/graphic/GraphicExportFilter.cxx b/filter/source/graphic/GraphicExportFilter.cxx
index b0b93222dfa3..ee5843066ad5 100644
--- a/filter/source/graphic/GraphicExportFilter.cxx
+++ b/filter/source/graphic/GraphicExportFilter.cxx
@@ -25,14 +25,15 @@
 #include <com/sun/star/frame/XModel.hpp>
 
 #include <cppuhelper/supportsservice.hxx>
+#include <utility>
 #include <vcl/graphicfilter.hxx>
 #include <svl/outstrm.hxx>
 #include <svtools/DocumentToGraphicRenderer.hxx>
 
 using namespace css;
 
-GraphicExportFilter::GraphicExportFilter( const uno::Reference< uno::XComponentContext > & rxContext  )
-    : mxContext(rxContext)
+GraphicExportFilter::GraphicExportFilter( uno::Reference< uno::XComponentContext > xContext  )
+    : mxContext(std::move(xContext))
     , mnTargetWidth(0)
     , mnTargetHeight(0)
     , mbSelectionOnly(false)
diff --git a/filter/source/graphic/GraphicExportFilter.hxx b/filter/source/graphic/GraphicExportFilter.hxx
index 6e2a30448817..c78b25d70a89 100644
--- a/filter/source/graphic/GraphicExportFilter.hxx
+++ b/filter/source/graphic/GraphicExportFilter.hxx
@@ -57,7 +57,7 @@ class GraphicExportFilter :
             const css::uno::Reference< css::drawing::XShape > & rxShape ) const;
 
 public:
-    explicit GraphicExportFilter( const css::uno::Reference< css::uno::XComponentContext > & rxContext );
+    explicit GraphicExportFilter( css::uno::Reference< css::uno::XComponentContext > xContext );
     virtual ~GraphicExportFilter() override;
 
     //  XServiceInfo
diff --git a/filter/source/msfilter/escherex.cxx b/filter/source/msfilter/escherex.cxx
index 03f72587e1b2..5f84a0df7273 100644
--- a/filter/source/msfilter/escherex.cxx
+++ b/filter/source/msfilter/escherex.cxx
@@ -31,6 +31,7 @@
 #include <svx/svdoole2.hxx>
 #include <svx/sdtfsitm.hxx>
 #include <editeng/outlobj.hxx>
+#include <utility>
 #include <vcl/graph.hxx>
 #include <vcl/cvtgrf.hxx>
 #include <vcl/svapp.hxx>
@@ -4373,8 +4374,8 @@ struct EscherShapeListEntry
     uno::Reference<drawing::XShape>aXShape;
     sal_uInt32 n_EscherId;
 
-    EscherShapeListEntry(const uno::Reference<drawing::XShape> & rShape, sal_uInt32 nId)
-        : aXShape(rShape)
+    EscherShapeListEntry(uno::Reference<drawing::XShape> xShape, sal_uInt32 nId)
+        : aXShape(std::move(xShape))
         , n_EscherId(nId)
     {}
 };
@@ -4862,8 +4863,8 @@ public:
 
 }
 
-EscherEx::EscherEx(const std::shared_ptr<EscherExGlobal>& rxGlobal, SvStream* pOutStrm, bool bOOXML)
-    : mxGlobal(rxGlobal)
+EscherEx::EscherEx(std::shared_ptr<EscherExGlobal> xGlobal, SvStream* pOutStrm, bool bOOXML)
+    : mxGlobal(std::move(xGlobal))
     , mpOutStrm(pOutStrm)
     , mbOwnsStrm(false)
     , mnCurrentDg(0)
diff --git a/filter/source/msfilter/mscodec.cxx b/filter/source/msfilter/mscodec.cxx
index 7aad72ba2dc7..376a453206fc 100644
--- a/filter/source/msfilter/mscodec.cxx
+++ b/filter/source/msfilter/mscodec.cxx
@@ -28,6 +28,7 @@
 #include <comphelper/sequenceashashmap.hxx>
 #include <comphelper/docpasswordhelper.hxx>
 #include <com/sun/star/beans/NamedValue.hpp>
+#include <utility>
 
 #define DEBUG_MSO_ENCRYPTION_STD97 0
 
@@ -246,8 +247,8 @@ void MSCodec_Xor95::Skip( std::size_t nBytes )
     mnOffset = (mnOffset + nBytes) & 0x0F;
 }
 
-MSCodec97::MSCodec97(size_t nHashLen, const OUString& rEncKeyName)
-    : m_sEncKeyName(rEncKeyName)
+MSCodec97::MSCodec97(size_t nHashLen, OUString aEncKeyName)
+    : m_sEncKeyName(std::move(aEncKeyName))
     , m_nHashLen(nHashLen)
     , m_hCipher(rtl_cipher_create(rtl_Cipher_AlgorithmARCFOUR, rtl_Cipher_ModeStream))
     , m_aDocId(16, 0)
diff --git a/filter/source/msfilter/msdffimp.cxx b/filter/source/msfilter/msdffimp.cxx
index 66c3857711c2..66bac102ac89 100644
--- a/filter/source/msfilter/msdffimp.cxx
+++ b/filter/source/msfilter/msdffimp.cxx
@@ -23,6 +23,7 @@
 #include <math.h>
 #include <limits>
 #include <limits.h>
+#include <utility>
 #include <vector>
 
 #include <o3tl/any.hxx>
@@ -5720,7 +5721,7 @@ void SvxMSDffManager::RemoveFromShapeOrder( SdrObject const * pObject ) const
 //  exported class: Public Methods
 
 SvxMSDffManager::SvxMSDffManager(SvStream& rStCtrl_,
-                                 const OUString& rBaseURL,
+                                 OUString aBaseURL,
                                  sal_uInt32 nOffsDgg_,
                                  SvStream* pStData_,
                                  SdrModel* pSdrModel_,// see SetModel() below
@@ -5735,7 +5736,7 @@ SvxMSDffManager::SvxMSDffManager(SvStream& rStCtrl_,
      nBLIPCount(  USHRT_MAX ),              // initialize with error, since we first check if the
      nGroupShapeFlags(ShapeFlag::NONE),     // ensure initialization here, as some corrupted
                                             // files may yield to this being uninitialized
-     maBaseURL( rBaseURL ),
+     maBaseURL(std::move( aBaseURL )),
      mnIdClusters(0),
      rStCtrl(  rStCtrl_  ),
      pStData(  pStData_  ),
@@ -5770,14 +5771,14 @@ SvxMSDffManager::SvxMSDffManager(SvStream& rStCtrl_,
         pStData->Seek( nOldPosData );
 }
 
-SvxMSDffManager::SvxMSDffManager( SvStream& rStCtrl_, const OUString& rBaseURL )
+SvxMSDffManager::SvxMSDffManager( SvStream& rStCtrl_, OUString aBaseURL )
     :DffPropertyReader( *this ),
      m_pBLIPInfos( new SvxMSDffBLIPInfos ),
      m_xShapeInfosByTxBxComp( new SvxMSDffShapeInfos_ByTxBxComp ),
      nOffsDgg( 0 ),
      nBLIPCount(  USHRT_MAX ),              // initialize with error, since we first have to check
      nGroupShapeFlags(ShapeFlag::NONE),
-     maBaseURL( rBaseURL ),
+     maBaseURL(std::move( aBaseURL )),
      mnIdClusters(0),
      rStCtrl(  rStCtrl_  ),
      pStData( nullptr ),
diff --git a/filter/source/msfilter/msocximex.cxx b/filter/source/msfilter/msocximex.cxx
index d2236f62c30c..e3ccf6524471 100644
--- a/filter/source/msfilter/msocximex.cxx
+++ b/filter/source/msfilter/msocximex.cxx
@@ -28,12 +28,13 @@
 #include <com/sun/star/form/XForm.hpp>
 #include <osl/diagnose.h>
 #include <filter/msfilter/msocximex.hxx>
+#include <utility>
 
 using namespace ::com::sun::star;
 
 constexpr OUStringLiteral sWW8_form( u"WW-Standard" );
 
-SvxMSConvertOCXControls::SvxMSConvertOCXControls( const uno::Reference< frame::XModel >& rxModel) : mxModel(rxModel)
+SvxMSConvertOCXControls::SvxMSConvertOCXControls( uno::Reference< frame::XModel > xModel) : mxModel(std::move(xModel))
 {
 }
 
diff --git a/filter/source/msfilter/mstoolbar.cxx b/filter/source/msfilter/mstoolbar.cxx
index f746ad0e8a2d..aa781c4717c8 100644
--- a/filter/source/msfilter/mstoolbar.cxx
+++ b/filter/source/msfilter/mstoolbar.cxx
@@ -23,6 +23,7 @@
 #include <com/sun/star/ui/ImageType.hpp>
 #include <com/sun/star/ui/ItemType.hpp>
 #include <com/sun/star/ui/ItemStyle.hpp>
+#include <utility>
 #include <vcl/dibtools.hxx>
 #include <vcl/graph.hxx>
 #include <vcl/bitmapex.hxx>
@@ -219,7 +220,7 @@ void TBCHeader::Print( FILE* fp )
 }
 #endif
 
-TBCData::TBCData( const TBCHeader& Header ) : rHeader( Header )
+TBCData::TBCData( TBCHeader Header ) : rHeader(std::move( Header ))
 {
 }
 
diff --git a/filter/source/msfilter/svdfppt.cxx b/filter/source/msfilter/svdfppt.cxx
index 1c1cf439b999..1e5d2bf1bb89 100644
--- a/filter/source/msfilter/svdfppt.cxx
+++ b/filter/source/msfilter/svdfppt.cxx
@@ -20,6 +20,7 @@
 #include <sal/config.h>
 
 #include <osl/endian.h>
+#include <utility>
 #include <vcl/svapp.hxx>
 #include <unotools/tempfile.hxx>
 #include <tools/diagnose_ex.h>
@@ -3188,9 +3189,9 @@ void SdrEscherImport::ImportHeaderFooterContainer( DffRecordHeader const & rHd,
     }
 }
 
-PPTBuGraEntry::PPTBuGraEntry( Graphic const & rGraphic, sal_uInt32 nInst ) :
+PPTBuGraEntry::PPTBuGraEntry( Graphic aGraphic, sal_uInt32 nInst ) :
     nInstance       ( nInst ),
-    aBuGra          ( rGraphic )  {}
+    aBuGra          (std::move( aGraphic ))  {}
 
 PPTExtParaLevel::PPTExtParaLevel()
 : mnExtParagraphMask( 0 )
diff --git a/filter/source/msfilter/util.cxx b/filter/source/msfilter/util.cxx
index a01db3452b10..aea2f816bde9 100644
--- a/filter/source/msfilter/util.cxx
+++ b/filter/source/msfilter/util.cxx
@@ -13,6 +13,7 @@
 #include <comphelper/string.hxx>
 #include <unotools/fontcvt.hxx>
 #include <unotools/fontdefs.hxx>
+#include <utility>
 #include <vcl/BitmapPalette.hxx>
 #include <filter/msfilter/escherex.hxx>
 #include <filter/msfilter/util.hxx>
@@ -329,8 +330,8 @@ std::u16string_view findQuotedText( std::u16string_view rCommand,
 
 }
 
-WW8ReadFieldParams::WW8ReadFieldParams( const OUString& _rData )
-    : aData( _rData )
+WW8ReadFieldParams::WW8ReadFieldParams( OUString _aData )
+    : aData(std::move( _aData ))
     , nFnd( 0 )
     , nNext( 0 )
     , nSavPtr( 0 )
diff --git a/filter/source/pdf/pdfexport.cxx b/filter/source/pdf/pdfexport.cxx
index e2c072a146b7..80aca22bc13a 100644
--- a/filter/source/pdf/pdfexport.cxx
+++ b/filter/source/pdf/pdfexport.cxx
@@ -24,6 +24,7 @@
 #include <tools/poly.hxx>
 #include <tools/diagnose_ex.h>
 #include <unotools/resmgr.hxx>
+#include <utility>
 #include <vcl/canvastools.hxx>
 #include <vcl/mapmod.hxx>
 #include <vcl/gdimtf.hxx>
@@ -1053,7 +1054,7 @@ class PDFErrorRequest : private cppu::BaseMutex,
 {
     task::PDFExportException maExc;
 public:
-    explicit PDFErrorRequest( const task::PDFExportException& i_rExc );
+    explicit PDFErrorRequest( task::PDFExportException aExc );
 
     // XInteractionRequest
     virtual uno::Any SAL_CALL getRequest() override;
@@ -1061,9 +1062,9 @@ public:
 };
 
 
-PDFErrorRequest::PDFErrorRequest( const task::PDFExportException& i_rExc ) :
+PDFErrorRequest::PDFErrorRequest( task::PDFExportException aExc ) :
     PDFErrorRequestBase( m_aMutex ),
-    maExc( i_rExc )
+    maExc(std::move( aExc ))
 {
 }
 
diff --git a/filter/source/storagefilterdetect/filterdetect.cxx b/filter/source/storagefilterdetect/filterdetect.cxx
index f45edd6cb5b6..05eb74769b60 100644
--- a/filter/source/storagefilterdetect/filterdetect.cxx
+++ b/filter/source/storagefilterdetect/filterdetect.cxx
@@ -31,6 +31,7 @@
 #include <com/sun/star/io/XInputStream.hpp>
 #include <com/sun/star/packages/zip/ZipIOException.hpp>
 #include <com/sun/star/task/XInteractionHandler.hpp>
+#include <utility>
 
 using namespace ::com::sun::star;
 using utl::MediaDescriptor;
@@ -75,8 +76,8 @@ OUString getInternalFromMediaType(std::u16string_view aMediaType)
 
 }
 
-StorageFilterDetect::StorageFilterDetect(const uno::Reference<uno::XComponentContext>& xCxt) :
-    mxCxt(xCxt) {}
+StorageFilterDetect::StorageFilterDetect(uno::Reference<uno::XComponentContext> xCxt) :
+    mxCxt(std::move(xCxt)) {}
 
 StorageFilterDetect::~StorageFilterDetect() {}
 
diff --git a/filter/source/storagefilterdetect/filterdetect.hxx b/filter/source/storagefilterdetect/filterdetect.hxx
index 0b7849f2d979..052e2c2ffd80 100644
--- a/filter/source/storagefilterdetect/filterdetect.hxx
+++ b/filter/source/storagefilterdetect/filterdetect.hxx
@@ -35,7 +35,7 @@ class StorageFilterDetect : public cppu::WeakImplHelper<
 
 public:
 
-    explicit StorageFilterDetect (const css::uno::Reference<css::uno::XComponentContext>& xCxt);
+    explicit StorageFilterDetect (css::uno::Reference<css::uno::XComponentContext> xCxt);
     virtual ~StorageFilterDetect() override;
 
     // XExtendedFilterDetection
diff --git a/filter/source/t602/t602filter.cxx b/filter/source/t602/t602filter.cxx
index d2f44023b590..7aced676430f 100644
--- a/filter/source/t602/t602filter.cxx
+++ b/filter/source/t602/t602filter.cxx
@@ -37,6 +37,7 @@
 #include <rtl/character.hxx>
 #include <unotools/resmgr.hxx>
 #include <unotools/streamwrap.hxx>
+#include <utility>
 
 using namespace ::cppu;
 using namespace ::osl;
@@ -131,14 +132,14 @@ namespace T602ImportFilter {
 
 static inistruct ini;
 
-T602ImportFilter::T602ImportFilter(const css::uno::Reference<css::uno::XComponentContext > &r )
-    : mxContext(r)
+T602ImportFilter::T602ImportFilter(css::uno::Reference<css::uno::XComponentContext > x )
+    : mxContext(std::move(x))
     , node(tnode::START)
 {
 }
 
-T602ImportFilter::T602ImportFilter(css::uno::Reference<css::io::XInputStream> const & xInputStream)
-    : mxInputStream(xInputStream)
+T602ImportFilter::T602ImportFilter(css::uno::Reference<css::io::XInputStream> xInputStream)
+    : mxInputStream(std::move(xInputStream))
     , node(tnode::START)
 {
 }
diff --git a/filter/source/t602/t602filter.hxx b/filter/source/t602/t602filter.hxx
index 04376a1f3c26..26fa088faa4b 100644
--- a/filter/source/t602/t602filter.hxx
+++ b/filter/source/t602/t602filter.hxx
@@ -224,8 +224,8 @@ private:
     bool importImpl( const css::uno::Sequence< css::beans::PropertyValue >& aDescriptor );
 
     public:
-        explicit T602ImportFilter(const css::uno::Reference<css::uno::XComponentContext > &r );
-        explicit T602ImportFilter(css::uno::Reference<css::io::XInputStream> const & xInputStream);
+        explicit T602ImportFilter(css::uno::Reference<css::uno::XComponentContext > x );
+        explicit T602ImportFilter(css::uno::Reference<css::io::XInputStream> xInputStream);
         virtual ~T602ImportFilter() override;
 
     // XFilter
diff --git a/filter/source/xmlfilteradaptor/XmlFilterAdaptor.hxx b/filter/source/xmlfilteradaptor/XmlFilterAdaptor.hxx
index 43db4e939ba7..a276d396eda2 100644
--- a/filter/source/xmlfilteradaptor/XmlFilterAdaptor.hxx
+++ b/filter/source/xmlfilteradaptor/XmlFilterAdaptor.hxx
@@ -27,6 +27,7 @@
 #include <com/sun/star/lang/XServiceInfo.hpp>
 #include <com/sun/star/uno/XComponentContext.hpp>
 #include <cppuhelper/implbase.hxx>
+#include <utility>
 
 
 enum FilterType
@@ -64,8 +65,8 @@ class XmlFilterAdaptor final : public cppu::WeakImplHelper
 
 public:
 
-    explicit XmlFilterAdaptor( const css::uno::Reference< css::uno::XComponentContext > & rxContext)
-        : mxContext(rxContext)
+    explicit XmlFilterAdaptor( css::uno::Reference< css::uno::XComponentContext > xContext)
+        : mxContext(std::move(xContext))
         , meType(FILTER_IMPORT)
     {
     }
diff --git a/filter/source/xmlfilterdetect/filterdetect.hxx b/filter/source/xmlfilterdetect/filterdetect.hxx
index 61b6dfaf53ee..c84b9f06612e 100644
--- a/filter/source/xmlfilterdetect/filterdetect.hxx
+++ b/filter/source/xmlfilterdetect/filterdetect.hxx
@@ -23,6 +23,7 @@
 #include <com/sun/star/lang/XInitialization.hpp>
 #include <com/sun/star/lang/XServiceInfo.hpp>
 #include <cppuhelper/implbase.hxx>
+#include <utility>
 
 namespace com::sun::star::uno {
     class XComponentContext;
@@ -38,8 +39,8 @@ class FilterDetect final : public cppu::WeakImplHelper <
     css::uno::Reference< css::uno::XComponentContext > mxCtx;
 
 public:
-    explicit FilterDetect( const css::uno::Reference< css::uno::XComponentContext > &rxCtx)
-        : mxCtx( rxCtx ) {}
+    explicit FilterDetect( css::uno::Reference< css::uno::XComponentContext > xCtx)
+        : mxCtx(std::move( xCtx )) {}
 
     //XExtendedFilterDetection
     virtual OUString SAL_CALL detect( css::uno::Sequence< css::beans::PropertyValue >& lDescriptor ) override;
diff --git a/filter/source/xsltfilter/LibXSLTTransformer.cxx b/filter/source/xsltfilter/LibXSLTTransformer.cxx
index 6cfe82c30a2a..1a7c34805f1b 100644
--- a/filter/source/xsltfilter/LibXSLTTransformer.cxx
+++ b/filter/source/xsltfilter/LibXSLTTransformer.cxx
@@ -386,8 +386,8 @@ namespace XSLT
     }
 
     LibXSLTTransformer::LibXSLTTransformer(
-            const css::uno::Reference<XComponentContext> & rxContext) :
-        m_xContext(rxContext)
+            css::uno::Reference<XComponentContext> xContext) :
+        m_xContext(std::move(xContext))
     {
     }
 
diff --git a/filter/source/xsltfilter/LibXSLTTransformer.hxx b/filter/source/xsltfilter/LibXSLTTransformer.hxx
index 266fa2c559e1..6cfaebe69a92 100644
--- a/filter/source/xsltfilter/LibXSLTTransformer.hxx
+++ b/filter/source/xsltfilter/LibXSLTTransformer.hxx
@@ -131,7 +131,7 @@ namespace XSLT
     public:
 
         // ctor...
-        LibXSLTTransformer(const css::uno::Reference<css::uno::XComponentContext> &r);
+        LibXSLTTransformer(css::uno::Reference<css::uno::XComponentContext> x);
 
         //  XServiceInfo
         virtual sal_Bool SAL_CALL supportsService(const OUString& sServiceName) override;
diff --git a/filter/source/xsltfilter/OleHandler.hxx b/filter/source/xsltfilter/OleHandler.hxx
index 485541ee1f3b..d59429aacf4d 100644
--- a/filter/source/xsltfilter/OleHandler.hxx
+++ b/filter/source/xsltfilter/OleHandler.hxx
@@ -13,6 +13,7 @@
 #include <cstring>
 #include <map>
 #include <string_view>
+#include <utility>
 #include <vector>
 #include <iostream>
 #include <libxml/parser.h>
@@ -56,8 +57,8 @@ namespace XSLT
     class OleHandler
     {
     public:
-        OleHandler(const css::uno::Reference<XComponentContext>& rxContext)
-            : m_xContext(rxContext)
+        OleHandler(css::uno::Reference<XComponentContext> xContext)
+            : m_xContext(std::move(xContext))
             , m_tcontext(nullptr)
         {
         }
diff --git a/filter/source/xsltfilter/XSLTFilter.cxx b/filter/source/xsltfilter/XSLTFilter.cxx
index d22c372a72f5..1052a381693b 100644
--- a/filter/source/xsltfilter/XSLTFilter.cxx
+++ b/filter/source/xsltfilter/XSLTFilter.cxx
@@ -66,6 +66,7 @@
 #include <com/sun/star/ucb/InteractiveAugmentedIOException.hpp>
 #include <com/sun/star/xml/xslt/XSLT2Transformer.hpp>
 #include <com/sun/star/xml/xslt/XSLTTransformer.hpp>
+#include <utility>
 
 #define TRANSFORMATION_TIMEOUT_SEC 60
 
@@ -147,7 +148,7 @@ namespace XSLT
     public:
 
         // ctor...
-        explicit XSLTFilter(const css::uno::Reference<XComponentContext> &r);
+        explicit XSLTFilter(css::uno::Reference<XComponentContext> x);
 
         //  XServiceInfo
         virtual sal_Bool SAL_CALL supportsService(const OUString& sServiceName) override;
@@ -180,8 +181,8 @@ namespace XSLT
 
     }
 
-    XSLTFilter::XSLTFilter(const css::uno::Reference<XComponentContext> &r):
-        m_xContext(r), m_bTerminated(false), m_bError(false)
+    XSLTFilter::XSLTFilter(css::uno::Reference<XComponentContext> x):
+        m_xContext(std::move(x)), m_bTerminated(false), m_bError(false)
     {}
 
     void