public override bool VisitTopLevelUsingNamespace([NotNull] GamaParser.TopLevelUsingNamespaceContext context)
{
var ns = GlobalContext.GetNamespaceChain(context.fqtn().Symbol().Select(s => s.GetText()).ToArray());
if (ns == null)
{
GlobalContext.AddError(new ErrorUsingNamespaceNotFound(context.fqtn()));
return(false);
}
NamespaceContext.AddImport(ns);
return(true);
}