loplugin:useuniqueptr in PDFGrammar

Change-Id: I8eff505de0d2821a33bbbc8e4acc2cbee7c1058e
Reviewed-on: https://gerrit.libreoffice.org/59232
Tested-by: Jenkins
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>

sdext/source/pdfimport/pdfparse/pdfparse.cxx

@@ -40,6 +40,7 @@
 #include <rtl/ustrbuf.hxx>
 #include <rtl/alloc.h>
 #include <sal/log.hxx>
+#include <o3tl/make_unique.hxx>
 
 // disable warnings again because someone along the line has enabled them
 // (we have  included boost headers, what did you expect?)
@@ -322,7 +323,7 @@ public:
         pContainer->m_aSubElements.emplace_back( pComment );
     }
 
-    void insertNewValue( PDFEntry* pNewValue, iteratorT pPos )
+    void insertNewValue( std::unique_ptr<PDFEntry> pNewValue, iteratorT pPos )
     {
         PDFContainer* pContainer = nullptr;
         const char* pMsg = nullptr;
@@ -336,20 +337,20 @@ public:
                 if( pObj )
                 {
                     if( pObj->m_pObject == nullptr )
-                        pObj->m_pObject = pNewValue;
+                        pObj->m_pObject = pNewValue.release();
                     else
                     {
                         pMsg = "second value for object";
                         pContainer = nullptr;
                     }
                 }
-                else if( dynamic_cast<PDFDict*>(pNewValue) )
+                else if( dynamic_cast<PDFDict*>(pNewValue.get()) )
                 {
                     PDFTrailer* pTrailer = dynamic_cast<PDFTrailer*>(pContainer);
                     if( pTrailer )
                     {
                         if( pTrailer->m_pDict == nullptr )
-                            pTrailer->m_pDict = dynamic_cast<PDFDict*>(pNewValue);
+                            pTrailer->m_pDict = dynamic_cast<PDFDict*>(pNewValue.get());
                         else
                             pContainer = nullptr;
                     }
@@ -361,44 +362,43 @@ public:
             }
         }
         if( pContainer )
-            pContainer->m_aSubElements.emplace_back( pNewValue );
+            pContainer->m_aSubElements.emplace_back( std::move(pNewValue) );
         else
         {
             if( ! pMsg )
             {
-                if( dynamic_cast<PDFContainer*>(pNewValue) )
+                if( dynamic_cast<PDFContainer*>(pNewValue.get()) )
                     pMsg = "array without container";
                 else
                     pMsg = "value without container";
             }
-            delete pNewValue;
             parseError( pMsg, pPos );
         }
     }
 
     void pushName( iteratorT first, iteratorT last )
     {
-        insertNewValue( new PDFName(iteratorToString(first,last)), first );
+        insertNewValue( o3tl::make_unique<PDFName>(iteratorToString(first,last)), first );
     }
 
     void pushDouble( iteratorT first, SAL_UNUSED_PARAMETER iteratorT /*last*/ )
     {
-        insertNewValue( new PDFNumber(m_fDouble), first );
+        insertNewValue( o3tl::make_unique<PDFNumber>(m_fDouble), first );
     }
 
     void pushString( iteratorT first, iteratorT last )
     {
-        insertNewValue( new PDFString(iteratorToString(first,last)), first );
+        insertNewValue( o3tl::make_unique<PDFString>(iteratorToString(first,last)), first );
     }
 
     void pushBool( iteratorT first, iteratorT last )
     {
-        insertNewValue( new PDFBool( (last-first == 4) ), first );
+        insertNewValue( o3tl::make_unique<PDFBool>( last-first == 4 ), first );
     }
 
     void pushNull( iteratorT first, SAL_UNUSED_PARAMETER iteratorT )
     {
-        insertNewValue( new PDFNull(), first );
+        insertNewValue( o3tl::make_unique<PDFNull>(), first );
     }
 
 
@@ -443,7 +443,7 @@ public:
         m_aUIntStack.pop_back();
         unsigned int nObject = m_aUIntStack.back();
         m_aUIntStack.pop_back();
-        insertNewValue( new PDFObjectRef(nObject,nGeneration), first );
+        insertNewValue( o3tl::make_unique<PDFObjectRef>(nObject,nGeneration), first );
     }
 
     void beginDict( iteratorT first, SAL_UNUSED_PARAMETER iteratorT )
@@ -451,7 +451,7 @@ public:
         PDFDict* pDict = new PDFDict();
         pDict->m_nOffset = first - m_aGlobalBegin;
 
-        insertNewValue( pDict, first );
+        insertNewValue( std::unique_ptr<PDFEntry>(pDict), first );
         // will not come here if insertion fails (exception)
         m_aObjectStack.push_back( pDict );
     }
@@ -481,7 +481,7 @@ public:
         PDFArray* pArray = new PDFArray();
         pArray->m_nOffset = first - m_aGlobalBegin;
 
-        insertNewValue( pArray, first );
+        insertNewValue( std::unique_ptr<PDFEntry>(pArray), first );
         // will not come here if insertion fails (exception)
         m_aObjectStack.push_back( pArray );
     }