macro struct? name*, parameters&
 local anon
 anon = 0
 macro name args&
  anon = anon + 1
  repeat 1, @anon: anon
   .@anon name args
  end repeat
 end macro
 macro end?.struct?!
     iterate base, ., .base
      if defined base
       assert base+sizeof base=$
      end if
     end iterate
   end namespace
  end struc
  iterate <base,prefix>, 0,, ix-name,x, iy-name,y
   virtual at base
	?prefix#name	name
   end virtual
  end iterate
  purge end?.struct?
 end macro
 struc name parameters
  namespace .
end macro