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// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_comphelper.hxx"
#include <comphelper/querydeep.hxx>
#include <typelib/typedescription.h>

//__________________________________________________________________________________________________

sal_Bool comphelper::isDerivedFrom(
    const ::com::sun::star::uno::Type & rBaseType,
    const ::com::sun::star::uno::Type & rType )
{
    using namespace ::com::sun::star::uno;

    TypeClass eClass = rBaseType.getTypeClass();

    if (eClass != TypeClass_INTERFACE)
        return sal_False;

    // supported TypeClass - do the types match ?
    if (eClass != rType.getTypeClass())
        return sal_False;

    sal_Bool bRet;

    // shortcut for simple case
    if (rBaseType == ::getCppuType(static_cast<const Reference< XInterface > *>(0)))
    {
        bRet = sal_True;
    }
    else
    {
        // now ask in cppu (aka typelib)
        ::typelib_TypeDescription *pBaseTD = 0, *pTD = 0;

        rBaseType.  getDescription(&pBaseTD);
        rType.      getDescription(&pTD);

        // interfaces are assignable to a base
        bRet = ::typelib_typedescription_isAssignableFrom(pBaseTD, pTD);

        ::typelib_typedescription_release(pBaseTD);
        ::typelib_typedescription_release(pTD);
    }

    return bRet;
}