[PATCH] Change in core[libreoffice-4-0]: bnc#798271: Don't delete the PropertyMapEntry instance prema...

Hi,

I have submitted a patch for review:

    https://gerrit.libreoffice.org/1858

To pull it, you can do:

    git pull ssh://gerrit.libreoffice.org:29418/core refs/changes/58/1858/1

bnc#798271: Don't delete the PropertyMapEntry instance prematurely.

When using comphelper::PropertyMapEntry array to create a UNO property
set, we need to make sure we keep this instance while the property set
object is alive, else it would cause a very hard-to-debug problem down
the road...

In this particular case, the aExportInfoMap array instance was destroyed
when it went out of scope, but the xInfoSet which references it was used
afterward.

Change-Id: I02132b6b2e6bef7b461f0f77c2c4a3e911e42014
---
M chart2/source/model/filter/XMLFilter.cxx
1 file changed, 17 insertions(+), 19 deletions(-)



diff --git a/chart2/source/model/filter/XMLFilter.cxx b/chart2/source/model/filter/XMLFilter.cxx
index 10a565a..75692c4 100644
--- a/chart2/source/model/filter/XMLFilter.cxx
+++ b/chart2/source/model/filter/XMLFilter.cxx
@@ -631,28 +631,26 @@
             xServiceFactory->createInstanceWithArguments(
                 C2U("com.sun.star.comp.Svx.GraphicExportHelper"), aGraphicResolverArgs ), 
uno::UNO_QUERY );
 
-        uno::Reference< beans::XPropertySet > xInfoSet;
+        // property map for export info set
+        comphelper::PropertyMapEntry aExportInfoMap[] =
         {
-            // property map for export info set
-            comphelper::PropertyMapEntry aExportInfoMap[] =
-            {
-                { MAP_LEN("UsePrettyPrinting"), 0, &::getBooleanCppuType(), 
beans::PropertyAttribute::MAYBEVOID, 0},
-                { MAP_LEN("BaseURI"), 0, &::getCppuType( (OUString *)0 ), 
beans::PropertyAttribute::MAYBEVOID, 0 },
-                { MAP_LEN("StreamRelPath"), 0, &::getCppuType( (OUString *)0 ), 
beans::PropertyAttribute::MAYBEVOID, 0 },
-                { MAP_LEN("StreamName"), 0, &::getCppuType( (OUString *)0 ), 
beans::PropertyAttribute::MAYBEVOID, 0 },
-                { MAP_LEN("ExportTableNumberList"), 0, &::getBooleanCppuType(), 
beans::PropertyAttribute::MAYBEVOID, 0 },
-                { NULL, 0, 0, NULL, 0, 0 }
-            };
+            { MAP_LEN("UsePrettyPrinting"), 0, &::getBooleanCppuType(), 
beans::PropertyAttribute::MAYBEVOID, 0},
+            { MAP_LEN("BaseURI"), 0, &::getCppuType( (OUString *)0 ), 
beans::PropertyAttribute::MAYBEVOID, 0 },
+            { MAP_LEN("StreamRelPath"), 0, &::getCppuType( (OUString *)0 ), 
beans::PropertyAttribute::MAYBEVOID, 0 },
+            { MAP_LEN("StreamName"), 0, &::getCppuType( (OUString *)0 ), 
beans::PropertyAttribute::MAYBEVOID, 0 },
+            { MAP_LEN("ExportTableNumberList"), 0, &::getBooleanCppuType(), 
beans::PropertyAttribute::MAYBEVOID, 0 },
+            { NULL, 0, 0, NULL, 0, 0 }
+        };
 
-            xInfoSet = comphelper::GenericPropertySet_CreateInstance( new 
comphelper::PropertySetInfo( aExportInfoMap ) );
+        uno::Reference< beans::XPropertySet > xInfoSet =
+            comphelper::GenericPropertySet_CreateInstance( new comphelper::PropertySetInfo( 
aExportInfoMap ) );
 
-            SvtSaveOptions aSaveOpt;
-            OUString sUsePrettyPrinting(RTL_CONSTASCII_USTRINGPARAM("UsePrettyPrinting"));
-            sal_Bool bUsePrettyPrinting( aSaveOpt.IsPrettyPrinting() );
-            xInfoSet->setPropertyValue( sUsePrettyPrinting, uno::makeAny( bUsePrettyPrinting ) );
-            if( ! bOasis )
-                xInfoSet->setPropertyValue( C2U("ExportTableNumberList"), uno::makeAny( true ));
-        }
+        SvtSaveOptions aSaveOpt;
+        OUString sUsePrettyPrinting(RTL_CONSTASCII_USTRINGPARAM("UsePrettyPrinting"));
+        sal_Bool bUsePrettyPrinting( aSaveOpt.IsPrettyPrinting() );
+        xInfoSet->setPropertyValue( sUsePrettyPrinting, uno::makeAny( bUsePrettyPrinting ) );
+        if( ! bOasis )
+            xInfoSet->setPropertyValue( C2U("ExportTableNumberList"), uno::makeAny( true ));
 
         sal_Int32 nArgs = 2;
         if( xGraphicObjectResolver.is())

-- 
To view, visit https://gerrit.libreoffice.org/1858
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Gerrit-MessageType: newchange
Gerrit-Change-Id: I02132b6b2e6bef7b461f0f77c2c4a3e911e42014
Gerrit-PatchSet: 1
Gerrit-Project: core
Gerrit-Branch: libreoffice-4-0
Gerrit-Owner: Kohei Yoshida <kohei.yoshida@gmail.com>