coverity#1401334 Uncaught exception

Change-Id: Id6dad66b3c55e5b3049f57e65c857db5abce50b1
Reviewed-on: https://gerrit.libreoffice.org/60901
Tested-by: Jenkins
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>

sw/inc/docsh.hxx

@@ -30,8 +30,8 @@
 #include "shellid.hxx"
 
 #include <svl/lstner.hxx>
-
 #include <sfx2/StyleManager.hxx>
+#include <o3tl/deleter.hxx>
 
 class SwDoc;
 class SfxDocumentInfoDialog;
@@ -43,6 +43,7 @@ class SwWrtShell;
 class SwFEShell;
 class Reader;
 class SwReader;
+typedef std::unique_ptr<SwReader, o3tl::default_delete<SwReader>> SwReaderPtr;
 class SwCursorShell;
 class SwSrcView;
 class SwPaM;
@@ -231,7 +232,7 @@ public:
                 { return const_cast<SwDocShell*>(this)->GetFEShell(); }
 
     /// For inserting document.
-    Reader* StartConvertFrom(SfxMedium& rMedium, std::unique_ptr<SwReader>& rpRdr,
+    Reader* StartConvertFrom(SfxMedium& rMedium, SwReaderPtr& rpRdr,
                             SwCursorShell const * pCursorSh = nullptr, SwPaM* pPaM = nullptr);
 
 #if defined(_WIN32)

sw/inc/shellio.hxx

@@ -29,6 +29,7 @@
 #include <tools/ref.hxx>
 #include <rtl/ref.hxx>
 #include <osl/thread.h>
+#include <o3tl/deleter.hxx>
 #include <o3tl/typed_flags_set.hxx>
 #include "swdllapi.h"
 #include "docfac.hxx"
@@ -172,6 +173,8 @@ protected:
     void                SetSkipImages( bool bSkipImages ) { mbSkipImages = bSkipImages; }
 };
 
+typedef std::unique_ptr<SwReader, o3tl::default_delete<SwReader>> SwReaderPtr;
+
 // Special Readers can be both!! (Excel, W4W, .. ).
 enum class SwReaderType {
     NONE = 0x00,

sw/source/core/unocore/unocrsrhelper.cxx

@@ -1061,7 +1061,7 @@ void InsertFile(SwUnoCursor* pUnoCursor, const OUString& rURL,
     pMed->Download();   // if necessary: start the download
     if( aRef.is() && 1 < aRef->GetRefCount() )  // Ref still valid?
     {
-        std::unique_ptr<SwReader> pRdr;
+        SwReaderPtr pRdr;
         SfxItemSet* pSet =  pMed->GetItemSet();
         pSet->Put(SfxBoolItem(FN_API_CALL, true));
         if(!sPassword.isEmpty())

sw/source/uibase/app/docsh.cxx

@@ -153,7 +153,7 @@ bool SwDocShell::InsertGeneratedStream(SfxMedium & rMedium,
     if (!::sw::XTextRangeToSwPaM(aPam, xInsertPosition))
         return false;
     // similar to SwView::InsertMedium
-    std::unique_ptr<SwReader> pReader;
+    SwReaderPtr pReader;
     Reader *const pRead = StartConvertFrom(rMedium, pReader, nullptr, &aPam);
     if (!pRead)
         return false;
@@ -162,7 +162,7 @@ bool SwDocShell::InsertGeneratedStream(SfxMedium & rMedium,
 }
 
 // Prepare loading
-Reader* SwDocShell::StartConvertFrom(SfxMedium& rMedium, std::unique_ptr<SwReader>& rpRdr,
+Reader* SwDocShell::StartConvertFrom(SfxMedium& rMedium, SwReaderPtr& rpRdr,
                                     SwCursorShell const *pCursorShell,
                                     SwPaM* pPaM )
 {
@@ -231,7 +231,7 @@ Reader* SwDocShell::StartConvertFrom(SfxMedium& rMedium, std::unique_ptr<SwReade
 // Loading
 bool SwDocShell::ConvertFrom( SfxMedium& rMedium )
 {
-    std::unique_ptr<SwReader> pRdr;
+    SwReaderPtr pRdr;
     SwRead pRead = StartConvertFrom(rMedium, pRdr);
     if (!pRead)
       return false; // #129881# return if no reader is found

sw/source/uibase/app/docsh2.cxx

@@ -1613,7 +1613,7 @@ ErrCode SwDocShell::LoadStylesFromFile( const OUString& rURL,
     if ( bImport )
     {
         SwRead pRead =  ReadXML;
-        std::unique_ptr<SwReader, o3tl::default_delete<SwReader>> pReader;
+        SwReaderPtr pReader;
         std::unique_ptr<SwPaM> pPam;
         // the SW3IO - Reader need the pam/wrtshell, because only then he
         // insert the styles!

sw/source/uibase/uiview/view2.cxx

@@ -2158,7 +2158,7 @@ long SwView::InsertMedium( sal_uInt16 nSlotId, std::unique_ptr<SfxMedium> pMediu
         pMedium->Download();    // start download if needed
         if( aRef.is() && 1 < aRef->GetRefCount() )  // still a valid ref?
         {
-            std::unique_ptr<SwReader> pRdr;
+            SwReaderPtr pRdr;
             Reader *pRead = pDocSh->StartConvertFrom(*pMedium, pRdr, m_pWrtShell.get());
             if( pRead ||
                 (pMedium->GetFilter()->GetFilterFlags() & SfxFilterFlags::STARONEFILTER) )