protected override void VisitMethodCall(MethodCallExpression m)
{
base.VisitMethodCall(m);
if (m.IsMethodCallExpression("FulltextMatch", typeof(ZetboxContextQueryableExtensions)))
{
if (IsFulltext) throw new InvalidOperationException("Found two fulltext specs in a single query");
IsFulltext = true;
Filter = (string)(m.Arguments[1] as ConstantExpression).Value;
}
}
