*hasAssertion = PR_FALSE;
InternetSearchDataSource::HasAssertion(nsIRDFResource *source,                             nsIRDFResource *property,                             nsIRDFNode *target,                             PRBool tv,                             PRBool *hasAssertion /* out */){	NS_PRECONDITION(source != nsnull, "null ptr");	if (! source)		return NS_ERROR_NULL_POINTER;	NS_PRECONDITION(property != nsnull, "null ptr");	if (! property)		return NS_ERROR_NULL_POINTER;	NS_PRECONDITION(target != nsnull, "null ptr");	if (! target)		return NS_ERROR_NULL_POINTER;	NS_PRECONDITION(hasAssertion != nsnull, "null ptr");	if (! hasAssertion)		return NS_ERROR_NULL_POINTER;	*hasAssertion = PR_FALSE;	// we only have positive assertions in the internet search data source.	if (! tv)	{		return NS_OK;        }        nsresult	rv = NS_RDF_NO_VALUE;                if (mInner)        {		rv = mInner->HasAssertion(source, property, target, tv, hasAssertion);	}        return(rv);}