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0024023: Revamp the OCCT Handle -- plugin

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Definition of PLUGINFACTORY function changed to return Standard_Transient* instead of Handle(Standard_Transient), which cannot be returned by C-style function.
Default implementation of PLUGINFACTORY() instantiated by macro PLUGIN() is corrected accordingly.
Methods Factory() in persistence packages are made returning const & to handle; this is to reflect the fact that returned handle should point to existing object (usually statically allocated) rather than new one.
This commit is contained in:
abv
2015-06-29 09:17:43 +03:00
parent 83eaf3e892
commit ce8b059af3
20 changed files with 35 additions and 53 deletions
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6
src/XmlTObjDrivers/XmlTObjDrivers.cxx
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@@ -31,7 +31,7 @@
static Standard_GUID XmlStorageDriver ("f78ff4a0-a779-11d5-aab4-0050044b1af1");
static Standard_GUID XmlRetrievalDriver("f78ff4a1-a779-11d5-aab4-0050044b1af1");
Handle(Standard_Transient) XmlTObjDrivers::Factory(const Standard_GUID& aGUID)
const Handle(Standard_Transient)& XmlTObjDrivers::Factory(const Standard_GUID& aGUID)
{
if(aGUID == XmlStorageDriver)
{
@@ -71,8 +71,4 @@ void XmlTObjDrivers::AddDrivers (const Handle(XmlMDF_ADriverTable)& aDriverTable
aDriverTable -> AddDriver (new XmlTObjDrivers_IntSparseArrayDriver(anMsgDrv));
}
#ifdef _MSC_VER
#pragma warning(disable:4190) /* disable warning on C++ type returned by C function; should be OK for C++ usage */
#endif
PLUGIN(XmlTObjDrivers)

2
src/XmlTObjDrivers/XmlTObjDrivers.hxx
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@@ -30,7 +30,7 @@ class XmlTObjDrivers
public:
// ---------- PUBLIC METHODS ----------
Standard_EXPORT static Handle(Standard_Transient) Factory
Standard_EXPORT static const Handle(Standard_Transient)& Factory
(const Standard_GUID& aGUID);
// Returns a driver corresponding to <aGUID>. Used for plugin.