loplugin:useuniqueptr in sot

Change-Id: If4d093079e13cfaebb9d226e39581b0c66e82786
Reviewed-on: https://gerrit.libreoffice.org/62651
Tested-by: Jenkins
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>

4 files changed, 27 insertions, 39 deletions

diff --git a/sot/source/sdstor/stg.cxx b/sot/source/sdstor/stg.cxx
index 60147cd319ee..169c7cb84138 100644
--- a/sot/source/sdstor/stg.cxx
+++ b/sot/source/sdstor/stg.cxx
@@ -673,8 +673,8 @@ bool Storage::CopyTo( const OUString& rElem, BaseStorage* pDest, const OUString&
         if( pElem->m_aEntry.GetType() == STG_STORAGE )
         {
             // copy the entire storage
-            BaseStorage* p1 = OpenStorage( rElem, INTERNAL_MODE );
-            BaseStorage* p2 = pDest->OpenOLEStorage( rNew, StreamMode::WRITE | StreamMode::SHARE_DENYALL, pEntry->m_bDirect );
+            tools::SvRef<BaseStorage> p1 = OpenStorage( rElem, INTERNAL_MODE );
+            tools::SvRef<BaseStorage> p2 = pDest->OpenOLEStorage( rNew, StreamMode::WRITE | StreamMode::SHARE_DENYALL, pEntry->m_bDirect );
 
             if ( p2 )
             {
@@ -682,7 +682,7 @@ bool Storage::CopyTo( const OUString& rElem, BaseStorage* pDest, const OUString&
                 if( !nTmpErr )
                 {
                     p2->SetClassId( p1->GetClassId() );
-                    p1->CopyTo( p2 );
+                    p1->CopyTo( p2.get() );
                     SetError( p1->GetError() );
 
                     nTmpErr = p2->GetError();
@@ -695,22 +695,20 @@ bool Storage::CopyTo( const OUString& rElem, BaseStorage* pDest, const OUString&
                     pDest->SetError( nTmpErr );
             }
 
-            delete p1;
-            delete p2;
             return Good() && pDest->Good();
         }
         else
         {
             // stream copy
-            BaseStorageStream* p1 = OpenStream( rElem, INTERNAL_MODE );
-            BaseStorageStream* p2 = pDest->OpenStream( rNew, StreamMode::WRITE | StreamMode::SHARE_DENYALL, pEntry->m_bDirect );
+            tools::SvRef<BaseStorageStream> p1 = OpenStream( rElem, INTERNAL_MODE );
+            tools::SvRef<BaseStorageStream> p2 = pDest->OpenStream( rNew, StreamMode::WRITE | StreamMode::SHARE_DENYALL, pEntry->m_bDirect );
 
             if ( p2 )
             {
                 ErrCode nTmpErr = p2->GetError();
                 if( !nTmpErr )
                 {
-                    p1->CopyTo( p2 );
+                    p1->CopyTo( p2.get() );
                     SetError( p1->GetError() );
 
                     nTmpErr = p2->GetError();
@@ -723,8 +721,6 @@ bool Storage::CopyTo( const OUString& rElem, BaseStorage* pDest, const OUString&
                     pDest->SetError( nTmpErr );
             }
 
-            delete p1;
-            delete p2;
             return Good() && pDest->Good();
         }
     }
diff --git a/sot/source/sdstor/stgdir.cxx b/sot/source/sdstor/stgdir.cxx
index da729a9031ef..6f52a38475d6 100644
--- a/sot/source/sdstor/stgdir.cxx
+++ b/sot/source/sdstor/stgdir.cxx
@@ -626,13 +626,13 @@ bool StgDirEntry::Tmp2Strm()
         if ( !m_pStgStrm )
             return false;
         sal_uInt64 n = m_pTmpStrm->GetSize();
-        StgStrm* pNewStrm;
+        std::unique_ptr<StgStrm> pNewStrm;
         StgIo& rIo = m_pStgStrm->GetIo();
         sal_uLong nThreshold = static_cast<sal_uLong>(rIo.m_aHdr.GetThreshold());
         if( n < nThreshold )
-            pNewStrm = new StgSmallStrm( rIo, STG_EOF );
+            pNewStrm.reset(new StgSmallStrm( rIo, STG_EOF ));
         else
-            pNewStrm = new StgDataStrm( rIo, STG_EOF );
+            pNewStrm.reset(new StgDataStrm( rIo, STG_EOF ));
         if( pNewStrm->SetSize( n ) )
         {
             sal_uInt8 p[ 4096 ];
@@ -652,16 +652,16 @@ bool StgDirEntry::Tmp2Strm()
             {
                 m_pTmpStrm->Seek( m_nPos );
                 m_pStgStrm->GetIo().SetError( m_pTmpStrm->GetError() );
-                delete pNewStrm;
                 return false;
             }
             else
             {
                 m_pStgStrm->SetSize( 0 );
                 delete m_pStgStrm;
-                m_pStgStrm = pNewStrm;
+                m_pStgStrm = pNewStrm.get();
                 pNewStrm->SetEntry( *this );
                 pNewStrm->Pos2Page( m_nPos );
+                pNewStrm.release();
                 delete m_pTmpStrm;
                 delete m_pCurStrm;
                 m_pTmpStrm = m_pCurStrm = nullptr;
@@ -741,11 +741,10 @@ void StgDirStrm::SetupEntry( sal_Int32 n, StgDirEntry* pUpper )
         sal_uInt64 nUnderlyingStreamSize = pUnderlyingStream->TellEnd();
 
         bool bOk(false);
-        StgDirEntry* pCur = new StgDirEntry( p, STGENTRY_SIZE, nUnderlyingStreamSize, &bOk );
+        std::unique_ptr<StgDirEntry> pCur(new StgDirEntry( p, STGENTRY_SIZE, nUnderlyingStreamSize, &bOk ));
 
         if( !bOk )
         {
-            delete pCur;
             m_rIo.SetError( SVSTREAM_GENERALERROR );
             // an error occurred
             return;
@@ -764,7 +763,6 @@ void StgDirStrm::SetupEntry( sal_Int32 n, StgDirEntry* pUpper )
             nLeaf = pCur->m_aEntry.GetLeaf( STG_CHILD );
             if (nLeaf != STG_FREE && nLeaf == n)
             {
-                delete pCur;
                 m_rIo.SetError( SVSTREAM_GENERALERROR );
                 return;
             }
@@ -779,14 +777,13 @@ void StgDirStrm::SetupEntry( sal_Int32 n, StgDirEntry* pUpper )
                 if (pUp->m_aEntry.GetLeaf(STG_CHILD) == nLeaf)
                 {
                     SAL_WARN("sot", "Leaf node of upper StgDirEntry is same as current StgDirEntry's leaf node. Circular entry chain, discarding link");
-                    delete pCur;
                     return;
                 }
                 pUp = pUp->m_pUp;
             }
 
             if( StgAvlNode::Insert
-                ( reinterpret_cast<StgAvlNode**>( pUpper ? &pUpper->m_pDown : &m_pRoot ), pCur ) )
+                ( reinterpret_cast<StgAvlNode**>( pUpper ? &pUpper->m_pDown : &m_pRoot ), pCur.get() ) )
             {
                 pCur->m_pUp    = pUpper;
             }
@@ -796,16 +793,11 @@ void StgDirStrm::SetupEntry( sal_Int32 n, StgDirEntry* pUpper )
                 // that contain duplicate entries in 'Directory' section
                 // so don't set the error flag here and just skip those
                 // (was: rIo.SetError( SVSTREAM_CANNOT_MAKE );)
-                delete pCur;
                 return;
             }
             SetupEntry( nLeft, pUpper );
             SetupEntry( nRight, pUpper );
-            SetupEntry( nLeaf, pCur );
-        }
-        else
-        {
-            delete pCur;
+            SetupEntry( nLeaf, pCur.release() );
         }
     }
 }
@@ -928,22 +920,23 @@ StgDirEntry* StgDirStrm::Create( StgDirEntry& rStg, const OUString& rName, StgEn
         pRes->m_bRemoved =
         pRes->m_bTemp    = false;
         pRes->m_bDirty   = true;
+        return pRes;
     }
     else
     {
-        pRes = new StgDirEntry( aEntry );
-        if( StgAvlNode::Insert( reinterpret_cast<StgAvlNode**>(&rStg.m_pDown), pRes ) )
+        std::unique_ptr<StgDirEntry> pNewRes(new StgDirEntry( aEntry ));
+        if( StgAvlNode::Insert( reinterpret_cast<StgAvlNode**>(&rStg.m_pDown), pNewRes.get() ) )
         {
-            pRes->m_pUp    = &rStg;
-            pRes->m_bDirty = true;
+            pNewRes->m_pUp    = &rStg;
+            pNewRes->m_bDirty = true;
         }
         else
         {
             m_rIo.SetError( SVSTREAM_CANNOT_MAKE );
-            delete pRes; pRes = nullptr;
+            pNewRes.reset();
         }
+        return pNewRes.release();
     }
-    return pRes;
 }
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/sot/source/sdstor/stgio.cxx b/sot/source/sdstor/stgio.cxx
index 803ab3761b68..e41c3d356ce4 100644
--- a/sot/source/sdstor/stgio.cxx
+++ b/sot/source/sdstor/stgio.cxx
@@ -371,9 +371,9 @@ FatError StgIo::ValidateFATs()
 {
     if( m_bFile )
     {
-        Validator *pV = new Validator( *this );
+        std::unique_ptr<Validator> pV(new Validator( *this ));
         bool bRet1 = !pV->IsError(), bRet2 = true ;
-        delete pV;
+        pV.reset();
 
         SvFileStream *pFileStrm = static_cast<SvFileStream *>( GetStrm() );
         if ( !pFileStrm )
@@ -384,9 +384,9 @@ FatError StgIo::ValidateFATs()
                       StreamMode::READ | StreamMode::SHARE_DENYNONE) &&
             aIo.Load() )
         {
-            pV = new Validator( aIo );
+            pV.reset(new Validator( aIo ));
             bRet2 = !pV->IsError();
-            delete pV;
+            pV.reset();
         }
 
         FatError nErr;
diff --git a/sot/source/sdstor/stgstrms.cxx b/sot/source/sdstor/stgstrms.cxx
index 9efd318be758..a03b75ccbe42 100644
--- a/sot/source/sdstor/stgstrms.cxx
+++ b/sot/source/sdstor/stgstrms.cxx
@@ -1228,7 +1228,7 @@ void StgTmpStrm::SetSize(sal_uInt64 n)
         if( n > THRESHOLD )
         {
             m_aName = utl::TempFile(nullptr, false).GetURL();
-            SvFileStream* s = new SvFileStream( m_aName, StreamMode::READWRITE );
+            std::unique_ptr<SvFileStream> s(new SvFileStream( m_aName, StreamMode::READWRITE ));
             const sal_uInt64 nCur = Tell();
             sal_uInt64 i = nEndOfData;
             std::unique_ptr<sal_uInt8[]> p(new sal_uInt8[ 4096 ]);
@@ -1270,10 +1270,9 @@ void StgTmpStrm::SetSize(sal_uInt64 n)
             if( i )
             {
                 SetError( s->GetError() );
-                delete s;
                 return;
             }
-            m_pStrm = s;
+            m_pStrm = s.release();
             // Shrink the memory to 16 bytes, which seems to be the minimum
             ReAllocateMemory( - ( static_cast<long>(nEndOfData) - 16 ) );
         }