-(* Too slow
-module MemoForm = Memoizer.Make(
-
-module F = Formula
-(*
-let eval_form_bool =
- MemoForm.make_rec(
- fun eval (f, ((s1,s2) as sets)) ->
- match F.expr f with
- | F.True -> true,true,true
- | F.False -> false,false,false
- | F.Atom((`Left|`LLeft),b,q) ->
- if b == (StateSet.mem q s1)
- then (true,true,false)
- else false,false,false
- | F.Atom(_,b,q) ->
- if b == (StateSet.mem q s2)
- then (true,false,true)
- else false,false,false
- | F.Or(f1,f2) ->
- let b1,rl1,rr1 = eval (f1,sets)
- in
- if b1 && rl1 && rr1 then (true,true,true) else
- let b2,rl2,rr2 = eval (f2,sets) in
- let rl1,rr1 = if b1 then rl1,rr1 else false,false
- and rl2,rr2 = if b2 then rl2,rr2 else false,false
- in (b1 || b2, rl1||rl2,rr1||rr2)
-
- | F.And(f1,f2) ->
- let b1,rl1,rr1 = eval (f1,sets) in
- if b1 && rl1 && rr1 then (true,true,true) else
- if b1 then
- let b2,rl2,rr2 = eval (f2,sets) in
- if b2 then (true,rl1||rl2,rr1||rr2) else (false,false,false)
- else (false,false,false)
- )
-
-*) *)