return by std::unique_ptr from GetErrorInfo

Change-Id: I80f1643b252d0b38d279b402a422733c0c4749b9
Reviewed-on: https://gerrit.libreoffice.org/59938
Tested-by: Jenkins
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>

3 files changed, 15 insertions, 18 deletions

diff --git a/include/vcl/errinf.hxx b/include/vcl/errinf.hxx
index 95e16213981b..a7160dfd695d 100644
--- a/include/vcl/errinf.hxx
+++ b/include/vcl/errinf.hxx
@@ -146,7 +146,7 @@ public:
 
     ErrCode const &         GetErrorCode() const { return nUserId; }
 
-    static ErrorInfo*       GetErrorInfo(ErrCode);
+    static std::unique_ptr<ErrorInfo> GetErrorInfo(ErrCode);
 
 private:
     ErrCode                 nUserId;
diff --git a/vcl/qa/cppunit/errorhandler.cxx b/vcl/qa/cppunit/errorhandler.cxx
index f59abb0f9a96..7848c4368c6e 100644
--- a/vcl/qa/cppunit/errorhandler.cxx
+++ b/vcl/qa/cppunit/errorhandler.cxx
@@ -51,13 +51,13 @@ void ErrorHandlerTest::testGetErrorString()
     CPPUNIT_ASSERT_MESSAGE("GetErrorString(ERRCODE_ABORT, aErrStr) should return false",
                            !ErrorHandler::GetErrorString(ERRCODE_ABORT, aErrStr));
     // normally protected, but MockErrorHandler is a friend of this class
-    xErrorInfo.reset(ErrorInfo::GetErrorInfo(ERRCODE_ABORT));
+    xErrorInfo = ErrorInfo::GetErrorInfo(ERRCODE_ABORT);
     aErrHdlr.CreateString(xErrorInfo.get(), aErrStr);
     CPPUNIT_ASSERT_EQUAL_MESSAGE("error message should be non-dynamic", OUString("Non-dynamic error"), aErrStr);
 
     CPPUNIT_ASSERT_MESSAGE("GetErrorString(ERRCODE_NONE, aErrStr) should return false",
                            !ErrorHandler::GetErrorString(ERRCODE_NONE, aErrStr));
-    xErrorInfo.reset(ErrorInfo::GetErrorInfo(ERRCODE_NONE));
+    xErrorInfo = ErrorInfo::GetErrorInfo(ERRCODE_NONE);
     aErrHdlr.CreateString(xErrorInfo.get(), aErrStr);
     CPPUNIT_ASSERT_EQUAL_MESSAGE("error message should be non-dynamic", OUString("Non-dynamic error"), aErrStr);
 }
diff --git a/vcl/source/window/errinf.cxx b/vcl/source/window/errinf.cxx
index 0ec0ca504b68..ec001e0a2b30 100644
--- a/vcl/source/window/errinf.cxx
+++ b/vcl/source/window/errinf.cxx
@@ -23,6 +23,7 @@
 
 #include <vcl/errinf.hxx>
 #include <vcl/window.hxx>
+#include <o3tl/make_unique.hxx>
 
 #include <vector>
 #include <limits.h>
@@ -97,15 +98,14 @@ bool ErrorHandler::GetErrorString(ErrCode nErrCodeId, OUString& rErrStr)
     if(!nErrCodeId || nErrCodeId == ERRCODE_ABORT)
         return false;
 
-    ErrorInfo *pInfo = ErrorInfo::GetErrorInfo(nErrCodeId);
+    std::unique_ptr<ErrorInfo> pInfo = ErrorInfo::GetErrorInfo(nErrCodeId);
 
-    if (ErrorStringFactory::CreateString(pInfo,aErr))
+    if (ErrorStringFactory::CreateString(pInfo.get(),aErr))
     {
         rErrStr = aErr;
         return true;
     }
 
-    delete pInfo;
     return false;
 }
 
@@ -115,7 +115,7 @@ DialogMask ErrorHandler::HandleError(ErrCode nErrCodeId, weld::Window *pParent,
         return DialogMask::NONE;
 
     ErrorRegistry &rData = TheErrorRegistry::get();
-    ErrorInfo *pInfo = ErrorInfo::GetErrorInfo(nErrCodeId);
+    std::unique_ptr<ErrorInfo> pInfo = ErrorInfo::GetErrorInfo(nErrCodeId);
     OUString aAction;
 
     if (!rData.contexts.empty())
@@ -139,7 +139,7 @@ DialogMask ErrorHandler::HandleError(ErrCode nErrCodeId, weld::Window *pParent,
     else
         nErrFlags |= DialogMask::MessageError;
 
-    DynamicErrorInfo* pDynPtr = dynamic_cast<DynamicErrorInfo*>(pInfo);
+    DynamicErrorInfo* pDynPtr = dynamic_cast<DynamicErrorInfo*>(pInfo.get());
     if(pDynPtr)
     {
         DialogMask nDynFlags = pDynPtr->GetDialogMask();
@@ -148,7 +148,7 @@ DialogMask ErrorHandler::HandleError(ErrCode nErrCodeId, weld::Window *pParent,
     }
 
     OUString aErr;
-    if (ErrorStringFactory::CreateString(pInfo, aErr))
+    if (ErrorStringFactory::CreateString(pInfo.get(), aErr))
     {
         if(!rData.pDsp)
         {
@@ -156,8 +156,6 @@ DialogMask ErrorHandler::HandleError(ErrCode nErrCodeId, weld::Window *pParent,
         }
         else
         {
-            delete pInfo;
-
             if(!rData.bIsWindowDsp)
             {
                 (*reinterpret_cast<BasicDisplayErrorFunc*>(rData.pDsp))(aErr,aAction);
@@ -181,7 +179,6 @@ DialogMask ErrorHandler::HandleError(ErrCode nErrCodeId, weld::Window *pParent,
     else
         OSL_FAIL("ERRCODE_ABORT not handled");
 
-    delete pInfo;
     return DialogMask::NONE;
 }
 
@@ -225,7 +222,7 @@ private:
     }
     void                        RegisterError(DynamicErrorInfo *);
     static void                 UnRegisterError(DynamicErrorInfo const *);
-    static ErrorInfo*           GetDynamicErrorInfo(ErrCode nId);
+    static std::unique_ptr<ErrorInfo> GetDynamicErrorInfo(ErrCode nId);
 
     ErrCode                     nErrId;
     DialogMask                  nMask;
@@ -258,23 +255,23 @@ void ImplDynamicErrorInfo::UnRegisterError(DynamicErrorInfo const *pDynErrInfo)
         ppDynErrInfo[nIdx]=nullptr;
 }
 
-ErrorInfo* ImplDynamicErrorInfo::GetDynamicErrorInfo(ErrCode nId)
+std::unique_ptr<ErrorInfo> ImplDynamicErrorInfo::GetDynamicErrorInfo(ErrCode nId)
 {
     sal_uInt32 nIdx = nId.GetDynamic() - 1;
     DynamicErrorInfo* pDynErrInfo = TheErrorRegistry::get().ppDynErrInfo[nIdx];
 
     if(pDynErrInfo && ErrCode(*pDynErrInfo)==nId)
-        return pDynErrInfo;
+        return std::unique_ptr<ErrorInfo>(pDynErrInfo);
     else
-        return new ErrorInfo(nId.StripDynamic());
+        return o3tl::make_unique<ErrorInfo>(nId.StripDynamic());
 }
 
-ErrorInfo *ErrorInfo::GetErrorInfo(ErrCode nId)
+std::unique_ptr<ErrorInfo> ErrorInfo::GetErrorInfo(ErrCode nId)
 {
     if(nId.IsDynamic())
         return ImplDynamicErrorInfo::GetDynamicErrorInfo(nId);
     else
-        return new ErrorInfo(nId);
+        return o3tl::make_unique<ErrorInfo>(nId);
 }
 
 ErrorInfo::~ErrorInfo()