reduce branch depth in SwModify dtor

Change-Id: I82046cfc191425dc830125944214293b5b9197f9

sw/inc/calbck.hxx

@@ -192,7 +192,7 @@ public:
     void UnlockModify()                 { m_bModifyLocked = false; }
     void SetInCache( bool bNew )        { m_bInCache = bNew;       }
     void SetInSwFntCache( bool bNew )   { m_bInSwFntCache = bNew;  }
-    void SetInDocDTOR()                 { m_bInDocDTOR = true; }
+    void SetInDocDTOR();
     bool IsModifyLocked() const     { return m_bModifyLocked;  }
     bool IsInCache()      const     { return m_bInCache;       }
     bool IsInSwFntCache() const     { return m_bInSwFntCache;  }

sw/source/core/attr/calbck.cxx

@@ -75,6 +75,17 @@ void SwClient::Modify(SfxPoolItem const*const pOldValue, SfxPoolItem const*const
     CheckRegistration( pOldValue, pNewValue );
 }
 
+void SwModify::SetInDocDTOR()
+{
+    m_bInDocDTOR = true;
+    // If the document gets destroyed anyway, just tell clients to
+    // forget me so that they don't try to get removed from my list
+    // later when they also get destroyed
+    SwIterator<SwClient,SwModify> aIter(*this);
+    for(SwClient* pClient = aIter.First(); pClient; pClient = aIter.Next())
+        pClient->pRegisteredIn = nullptr;
+}
+
 SwModify::~SwModify()
 {
     DBG_TESTSOLARMUTEX();
@@ -86,20 +97,8 @@ SwModify::~SwModify()
     if ( IsInSwFntCache() )
         pSwFontCache->Delete( this );
 
-    if( m_pWriterListeners )
-    {
-        // there are depending objects
-        if( m_bInDocDTOR )
-        {
-            // If the document gets destroyed anyway, just tell clients to
-            // forget me so that they don't try to get removed from my list
-            // later when they also get destroyed
-            SwIterator<SwClient,SwModify> aIter(*this);
-            for(SwClient* pClient = aIter.First(); pClient; pClient = aIter.Next())
-                pClient->pRegisteredIn = nullptr;
-        }
-        else
-        {
+    if(m_bInDocDTOR)
+        return;
     // notify all clients that they shall remove themselves
     SwPtrMsgPoolItem aDyObject( RES_OBJECTDYING, this );
     NotifyClients( &aDyObject, &aDyObject );
@@ -108,8 +107,6 @@ SwModify::~SwModify()
     // mba: possibly a hotfix for forgotten base class calls?!
     while( m_pWriterListeners )
         static_cast<SwClient*>(m_pWriterListeners)->CheckRegistration( &aDyObject, &aDyObject );
-        }
-    }
 }
 
 void SwModify::NotifyClients( const SfxPoolItem* pOldValue, const SfxPoolItem* pNewValue )