loplugin:passstuffbyref improved return in emfio,writerfilter

Change-Id: I237936d62d0f1b17574dd88b5c9de932dc03238e
Reviewed-on: https://gerrit.libreoffice.org/47214
Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>

1 files changed, 3 insertions, 3 deletions

diff --git a/writerfilter/source/dmapper/DomainMapper_Impl.hxx b/writerfilter/source/dmapper/DomainMapper_Impl.hxx
index 589a79953f13..db2ec50de9b5 100644
--- a/writerfilter/source/dmapper/DomainMapper_Impl.hxx
+++ b/writerfilter/source/dmapper/DomainMapper_Impl.hxx
@@ -167,7 +167,7 @@ public:
     const OUString&  GetCommand() const {return m_sCommand; }
 
     void SetFieldId(FieldId eFieldId ) { m_eFieldId = eFieldId; }
-    boost::optional<FieldId> GetFieldId() const { return m_eFieldId; }
+    boost::optional<FieldId> const & GetFieldId() const { return m_eFieldId; }
 
     void AppendResult(OUString const& rResult) { m_sResult += rResult; }
     const OUString&  GetResult() const { return m_sResult; }
@@ -635,8 +635,8 @@ public:
     }
     PropertyMapPtr GetTopContextOfType(ContextType eId);
 
-    css::uno::Reference<css::text::XTextAppend> GetTopTextAppend();
-    FieldContextPtr GetTopFieldContext();
+    css::uno::Reference<css::text::XTextAppend> const & GetTopTextAppend();
+    FieldContextPtr const & GetTopFieldContext();
 
     FontTablePtr const & GetFontTable()
     {