public virtual void visit(try_handler _try_handler) { DefaultVisit(_try_handler); }
public override void visit(try_handler _try_handler) { }
public virtual void post_do_visit(try_handler _try_handler) { }
public override void visit(try_handler _try_handler) { DefaultVisit(_try_handler); pre_do_visit(_try_handler); post_do_visit(_try_handler); }
public virtual void visit(try_handler _try_handler) { }
public override void visit(try_handler _try_handler) { throw new NotImplementedException(); }
public override void visit(try_handler _try_handler) { executer.visit(_try_handler); }