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cduce
Commit 6ee6ef2e authored by Kim Nguyễn's avatar Kim Nguyễn
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Improve pretty printing of Bdds and add debug directive to interactively... 

Improve pretty printing of Bdds and add debug directive to interactively inspect the internal representation of types.
parent edd4e79d
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Showing with 234 additions and 147 deletions
driver/cduce.ml
View file @ 6ee6ef2e
......@@ -9,11 +9,11 @@ exception InvalidObjectFilename of string
let extra_specs = ref []
(* if set to false toplevel exception aren't cought.
(* if set to false toplevel exception aren't cought.
* Useful for debugging with OCAMLRUNPARAM="b" *)
let catch_exceptions = true
(* retuns a filename without the suffix suff if any *)
(* retuns a filename without the suffix suff if any *)
let prefix filename suff =
if Filename.check_suffix filename suff then
try
......@@ -39,7 +39,7 @@ let rec is_abstraction = function
| Ast.LocatedExpr (_,e) -> is_abstraction e
| _ -> false
let print_norm ppf d =
let print_norm ppf d =
Types.Print.pp_type ppf ((*Types.normalize*) d)
let print_sample ppf s =
......@@ -74,7 +74,7 @@ let directive_help ppf =
#reinit_ns;; reinitialize namespace processing
#help;; shows this help message
#print_type <type>;; dump internal representation of <type>
#debug ;;
#debug ;;
#silent;; turn off outputs from the toplevel
#verbose;; turn on outputs from the toplevel
#builtins;; shows embedded OCaml values
......@@ -83,7 +83,8 @@ let directive_help ppf =
let directive_help_debug ppf =
Format.fprintf ppf
"Debug sub-directives:
#debug sybtype <type> <type> ;; check if t1 < t2 for all substitutions
#debug subtype <type> <type> ;; check if t1 < t2 for all substitutions
#debug bdd <type>;; dump the internal type representation
#debug typed <expr> ;; dump typed internal representation
#debug lambda <expr> ;; dump lambda internal representation
#debug accept <???> ;;
......@@ -95,33 +96,33 @@ let directive_help_debug ppf =
let rec print_exn ppf = function
| Location (loc, w, exn) ->
Cduce_loc.print_loc ppf (loc,w);
Cduce_loc.html_hilight (loc,w);
Cduce_loc.html_hilight (loc,w);
print_exn ppf exn
| Value.CDuceExn v ->
Format.fprintf ppf "Uncaught CDuce exception: @[%a@]@."
print_value v
| Typer.WrongLabel (t,l) ->
Format.fprintf ppf "Wrong record selection; field %a "
Format.fprintf ppf "Wrong record selection; field %a "
Label.print_attr l;
Format.fprintf ppf "not present in an expression of type:@.%a@."
print_norm t
| Typer.ShouldHave (t,msg) ->
Format.fprintf ppf "This expression should have type:@.%a@.%a@."
Format.fprintf ppf "This expression should have type:@.%a@.%a@."
print_norm t
print_protect msg
| Typer.ShouldHave2 (t1,msg,t2) ->
Format.fprintf ppf "This expression should have type:@.%a@.%a %a@."
Format.fprintf ppf "This expression should have type:@.%a@.%a %a@."
print_norm t1
print_protect msg
print_norm t2
| Typer.Error s ->
Format.fprintf ppf "%a@." print_protect s
| Typer.Constraint (s,t) ->
Format.fprintf ppf "This expression should have type:@.%a@."
Format.fprintf ppf "This expression should have type:@.%a@."
print_norm t;
Format.fprintf ppf "but its inferred type is:@.%a@."
Format.fprintf ppf "but its inferred type is:@.%a@."
print_norm s;
Format.fprintf ppf "which is not a subtype, as shown by the sample:@.%a@."
Format.fprintf ppf "which is not a subtype, as shown by the sample:@.%a@."
print_sample (Sample.get (Types.diff s t))
| Typer.NonExhaustive t ->
Format.fprintf ppf "This pattern matching is not exhaustive@.";
......@@ -132,7 +133,7 @@ let rec print_exn ppf = function
Format.fprintf ppf "Unbound identifier %a%s@." Ident.print x
(if tn then " (it is a type name)" else "")
| Typer.UnboundExtId (cu,x) ->
Format.fprintf ppf "Unbound external identifier %a:%a@."
Format.fprintf ppf "Unbound external identifier %a:%a@."
U.print (Librarian.name cu)
Ident.print x
| Ulexer.Error (i,j,s) ->
......@@ -140,7 +141,7 @@ let rec print_exn ppf = function
Cduce_loc.print_loc ppf loc;
Cduce_loc.html_hilight loc;
Format.fprintf ppf "%s" s
| Parser.Error s | Stream.Error s ->
| Parser.Error s | Stream.Error s ->
Format.fprintf ppf "Parsing error: %a@." print_protect s
| Librarian.InconsistentCrc name ->
Format.fprintf ppf "Link error:@.";
......@@ -163,14 +164,14 @@ let rec print_exn ppf = function
| Cduce_loc.Generic s ->
Format.fprintf ppf "%a@." print_protect s
| Ns.Label.Not_unique ((ns1,s1),(ns2,s2)) ->
Format.fprintf ppf "Collision on label hash: {%a}:%a, {%a}:%a"
U.print (Ns.Uri.value ns1)
U.print s1
U.print (Ns.Uri.value ns2)
Format.fprintf ppf "Collision on label hash: {%a}:%a, {%a}:%a"
U.print (Ns.Uri.value ns1)
U.print s1
U.print (Ns.Uri.value ns2)
U.print s2
| Ns.Uri.Not_unique (ns1,ns2) ->
Format.fprintf ppf "Collision on namespaces hash: %a, %a"
U.print ns1
Format.fprintf ppf "Collision on namespaces hash: %a, %a"
U.print ns1
U.print ns2
| Sequence.Error (Sequence.CopyTag (t,expect)) ->
Format.fprintf ppf "Tags in %a will be copied, but only %a are allowed.@.Counter-example:%a@."
......@@ -185,12 +186,12 @@ let rec print_exn ppf = function
| Sequence.Error (Sequence.UnderTag (t,exn)) ->
Format.fprintf ppf "Under tag %a:@." Types.Print.pp_type t;
print_exn ppf exn
| exn ->
(* raise exn *)
Format.fprintf ppf "%a@." print_protect (Printexc.to_string exn)
let eval_quiet tenv cenv e =
let eval_quiet tenv cenv e =
let (e,_) = Typer.type_expr tenv e in
Compile.compile_eval_expr cenv e
......@@ -201,6 +202,13 @@ let debug ppf tenv cenv = function
and t2 = Types.descr (Typer.typ tenv t2) in
let s = Types.subtype t1 t2 in
Format.fprintf ppf "%a %a %a : %b@." print_norm t1 print_protect "<=" print_norm t2 s
| `Bdd (t) ->
Format.fprintf ppf "[DEBUG:bdd]@.";
let t = Types.descr (Typer.typ tenv t) in
Format.fprintf ppf "@[%a@]@." Types.Print.dump t
| `Id_bdd (i) ->
Format.fprintf ppf "[DEBUG:id_bdd]@.";
Format.fprintf ppf "@[%a@]@." Types.Print.dump_by_id i
| `Sample t ->
Format.fprintf ppf "[DEBUG:sample]@.";
(try
......@@ -209,7 +217,7 @@ let debug ppf tenv cenv = function
Format.fprintf ppf "witness: %a@." Types.Witness.pp (Types.witness t);
with Not_found ->
Format.fprintf ppf "Empty type : no sample !@.")
| `Filter (t,p) ->
| `Filter (t,p) ->
let t = Typer.typ tenv t
and p = Typer.pat tenv p in
Format.fprintf ppf "[DEBUG:filter t=%a p=%a]@."
......@@ -217,7 +225,7 @@ let debug ppf tenv cenv = function
Patterns.Print.pp (Patterns.descr p);
let f = Patterns.filter (Types.descr t) p in
IdMap.iteri (fun x t ->
Format.fprintf ppf " %a:%a@."
Format.fprintf ppf " %a:%a@."
Ident.print x
print_norm (Types.descr t)) f
| `Accept p ->
......@@ -228,7 +236,7 @@ let debug ppf tenv cenv = function
| `Compile (t,pl) ->
Format.fprintf ppf "[DEBUG:compile]@.";
let no = ref (-1) in
let t = Types.descr (Typer.typ tenv t)
let t = Types.descr (Typer.typ tenv t)
and pl = List.map (fun p -> incr no; (Typer.pat tenv p, !no)) pl in
let (state,rhs) = Patterns.Compile.make_branches t pl in
......@@ -242,11 +250,11 @@ let debug ppf tenv cenv = function
| `Single t ->
Format.fprintf ppf "[DEBUG:single]@.";
let t = Typer.typ tenv t in
(try
(try
let c = Sample.single (Types.descr t) in
Format.fprintf ppf "Constant:%a@." Types.Print.pp_const c
with
| Exit -> Format.fprintf ppf "Non constant@."
| Exit -> Format.fprintf ppf "Non constant@."
| Not_found -> Format.fprintf ppf "Empty@.")
| `Typed e ->
Format.fprintf ppf "[DEBUG:typed]@.";
......@@ -299,17 +307,17 @@ let print_value_opt ppf = function
let show ppf id t v =
if !silent then ()
else Format.fprintf ppf "@[%a : @[%a%a@]@]@."
print_id_opt id
print_norm t
print_id_opt id
print_norm t
print_value_opt v
let ev_top ~run ~show ?directive phs =
let (tenv,cenv,_) =
let (tenv,cenv,_) =
Compile.comp_unit ~run ~show ?directive
!typing_env !compile_env phs in
typing_env := tenv;
compile_env := cenv
let phrases ppf phs =
ev_top ~run:true ~show:(show ppf) ~directive:(directive ppf) phs
......@@ -317,10 +325,10 @@ let phrases ppf phs =
let catch_exn ppf_err exn =
if not catch_exceptions then raise exn;
match exn with
| (End_of_file | Failure _ | Not_found | Invalid_argument _ | Sys.Break)
as e ->
| (End_of_file | Failure _ | Not_found | Invalid_argument _ | Sys.Break)
as e ->
raise e
| exn ->
| exn ->
print_exn ppf_err exn;
Format.fprintf ppf_err "@."
......@@ -341,7 +349,7 @@ let compile src out_dir =
if not (Filename.check_suffix src ".cd")
then raise (InvalidInputFilename src);
let cu = Filename.chop_suffix (Filename.basename src) ".cd" in
let out_dir =
let out_dir =
match out_dir with
| None -> Filename.dirname src
| Some x -> x in
......@@ -350,10 +358,10 @@ let compile src out_dir =
Librarian.compile_save !verbose name src out;
exit 0
with exn -> catch_exn Format.err_formatter exn; exit 1
let compile_run src =
try
let name =
let name =
if src = "" then "<stdin>"
else
if not (Filename.check_suffix src ".cd")
......@@ -363,7 +371,7 @@ let compile_run src =
Librarian.compile_run !verbose name src;
with exn -> catch_exn Format.err_formatter exn; exit 1
let run obj =
let run obj =
Cduce_loc.obj_path := (Filename.dirname obj)::!Cduce_loc.obj_path ;
let obj = Filename.basename obj in
try
......@@ -381,7 +389,7 @@ let eval s =
let vals = ref [] in
let show id t v =
match id,v with
| Some id, Some v ->
| Some id, Some v ->
vals := (Some (Atoms.V.mk id),v) :: !vals
| None, Some v ->
vals := (None,v) :: !vals
......@@ -389,18 +397,18 @@ let eval s =
in
ev_top ~run:true ~show phs;
List.rev !vals
let eval s =
try eval s
with exn ->
with exn ->
let b = Buffer.create 1024 in
let ppf = Format.formatter_of_buffer b in
print_exn ppf exn;
Format.fprintf ppf "@.";
Value.failwith' (Buffer.contents b)
let () =
let () =
Operators.register_fun "eval_expr" Builtin_defs.string_latin1 Types.any
(fun v ->
match eval (Value.cduce2ocaml_string v) with
......
misc/bool.ml
View file @ 6ee6ef2e
......@@ -19,7 +19,7 @@ sig
val iter: (elem-> unit) -> t -> unit
val compute: empty:'b -> full:'b -> cup:('b -> 'b -> 'b)
val compute: empty:'b -> full:'b -> cup:('b -> 'b -> 'b)
-> cap:('b -> 'b -> 'b) -> diff:('b -> 'b -> 'b) ->
atom:(elem -> 'b) -> t -> 'b
......@@ -55,13 +55,13 @@ struct
the minimum of the two when egality ... *)
let rec compare a b =
if (a == b) then 0
if (a == b) then 0
else match (a,b) with
| Split (h1,x1, p1,i1,n1), Split (h2,x2, p2,i2,n2) ->
if h1 < h2 then -1 else if h1 > h2 then 1
if h1 < h2 then -1 else if h1 > h2 then 1
else let c = X.compare x1 x2 in if c <> 0 then c
else let c = compare p1 p2 in if c <> 0 then c
else let c = compare i1 i2 in if c <> 0 then c
else let c = compare i1 i2 in if c <> 0 then c
else compare n1 n2
| True,_ -> -1
| _, True -> 1
......@@ -74,7 +74,7 @@ struct
| False -> 0
| Split(h, _,_,_,_) -> h
let compute_hash x p i n =
let compute_hash x p i n =
(X.hash x) + 17 * (hash p) + 257 * (hash i) + 16637 * (hash n)
let rec check = function
......@@ -89,7 +89,7 @@ struct
let atom x =
let h = X.hash x + 17 in (* partial evaluation of compute_hash... *)
Split (h, x,True,False,False)
let neg_atom x =
let h = X.hash x + 16637 in (* partial evaluation of compute_hash... *)
Split (h, x,False,False,True)
......@@ -99,11 +99,11 @@ struct
| _ -> ()
let rec dump ppf = function
| True -> Format.fprintf ppf "+"
| False -> Format.fprintf ppf "-"
| Split (_,x, p,i,n) ->
Format.fprintf ppf "%i(@[%a,%a,%a@])"
(* X.dump x *) (X.hash x) dump p dump i dump n
| True -> Format.fprintf ppf "⊤"
| False -> Format.fprintf ppf "⊥"
| Split (_,x, p,i,n) ->
Format.fprintf ppf "@[@[%a@][@[<hov>%a,@\n%a,@\n%a@]]@]"
X.dump x dump p dump i dump n
let rec print f ppf = function
| True -> Format.fprintf ppf "Any"
......@@ -111,25 +111,25 @@ struct
| Split (_, x, p,i, n) ->
let flag = ref false in
let b () = if !flag then Format.fprintf ppf " | " else flag := true in
(match p with
(match p with
| True -> b(); Format.fprintf ppf "%a" f x
| False -> ()
| _ -> b (); Format.fprintf ppf "%a & @[(%a)@]" f x (print f) p );
(match i with
(match i with
| True -> assert false;
| False -> ()
| _ -> b(); print f ppf i);
(match n with
(match n with
| True -> b (); Format.fprintf ppf "@[~%a@]" f x
| False -> ()
| _ -> b (); Format.fprintf ppf "@[~%a@] & @[(%a)@]" f x (print f) n)
let print a f = function
| True -> [ fun ppf -> Format.fprintf ppf "%s" a ]
| False -> []
| c -> [ fun ppf -> print f ppf c ]
let rec get accu pos neg = function
| True -> (pos,neg) :: accu
| False -> accu
......@@ -139,7 +139,7 @@ struct
let accu = get accu pos (x::neg) n in
let accu = get accu pos neg i in
accu
let get x = get [] [] [] x
let rec get' accu pos neg = function
......@@ -171,7 +171,7 @@ struct
cup (cup p i) n
in
aux b
(* Invariant: correct hash value *)
let split0 x pos ign neg =
......@@ -194,7 +194,7 @@ struct
| b :: l -> (equal a b) || (has_same a l)
let rec split x p i n =
if i == True then True
if i == True then True
else if equal p n then p ++ i
else let p = simplify p [i] and n = simplify n [i] in
if equal p n then p ++ i
......@@ -208,17 +208,17 @@ struct
if (has_true l) || (has_same a l) then False
else s_aux2 a x p i n [] [] [] l
and s_aux2 a x p i n ap ai an = function
| [] ->
let p = simplify p ap
| [] ->
let p = simplify p ap
and n = simplify n an
and i = simplify i ai in
if equal p n then p ++ i else split0 x p i n
| b :: l -> s_aux3 a x p i n ap ai an l b
| b :: l -> s_aux3 a x p i n ap ai an l b
and s_aux3 a x p i n ap ai an l = function
| False -> s_aux2 a x p i n ap ai an l
| True -> assert false
| Split (_,x2,p2,i2,n2) as b ->
if equal a b then False
if equal a b then False
else let c = X.compare x2 x in
if c < 0 then s_aux3 a x p i n ap ai an l i2
else if c > 0 then s_aux2 a x p i n (b :: ap) (b :: ai) (b :: an) l
......@@ -243,16 +243,16 @@ struct
| Split (_,x1, p1,i1,n1), Split (_,x2, p2,i2,n2) ->
let c = X.compare x1 x2 in
if c = 0 then
split x1
split x1
(p1 ** (p2 ++ i2) ++ (p2 ** i1))
(i1 ** i2)
(n1 ** (n2 ++ i2) ++ (n2 ** i1))
(* if (p2 == True) && (n2 == False)
(n1 ** (n2 ++ i2) ++ (n2 ** i1))
(* if (p2 == True) && (n2 == False)
then split x1 (p1 ++ i1) (i1 ** i2) (n1 ** i2)
else if (p2 == False) && (n2 == True)
then split x1 (p1 ** i2) (i1 ** i2) (n1 ++ i1)
else
split x1 ((p1++i1) ** (p2 ++ i2)) False ((n1 ++ i1) ** (n2 ++ i2))
else
split x1 ((p1++i1) ** (p2 ++ i2)) False ((n1 ++ i1) ** (n2 ++ i2))
*)
else if c < 0 then split x1 (p1 ** b) (i1 ** b) (n1 ** b)
else split x2 (p2 ** a) (i2 ** a) (n2 ** a)
......@@ -281,16 +281,16 @@ struct
| True -> False
| False -> True
| Split (_,x, p,i,False) -> split x False (neg (i ++ p)) (neg i)
| Split (_,x, False,i,n) -> split x (neg i) (neg (i ++ n)) False
| Split (_,x, p,False,n) -> split x (neg p) (neg (p ++ n)) (neg n)
(* | Split (_,x, p, False, False) ->
| Split (_,x, False,i,n) -> split x (neg i) (neg (i ++ n)) False
| Split (_,x, p,False,n) -> split x (neg p) (neg (p ++ n)) (neg n)
(* | Split (_,x, p, False, False) ->
split x False (neg p) True
| Split (_,x, False, False, n) -> split x True (neg n) False *)
| Split (_,x, p,i,n) -> split x (neg (i ++ p)) False (neg (i ++ n))
let rec ( // ) a b =
let rec ( // ) a b =
(* if equal a b then False *)
if a == b then False
if a == b then False
else match (a,b) with
| False,_ | _, True -> False
| a, False -> a
......@@ -298,18 +298,18 @@ struct
| Split (_,x1, p1,i1,n1), Split (_,x2, p2,i2,n2) ->
let c = X.compare x1 x2 in
if c = 0 then
if (i2 == False) && (n2 == False)
if (i2 == False) && (n2 == False)
then split x1 (p1 // p2) (i1 // p2) (n1 ++ i1)
(* else if (i2 == False) && (p2 == False)
then split x1 (p1 ++ i1) (i1 // n2) (n1 // n2) *)
else
else
split x1 ((p1++i1) // (p2 ++ i2)) False ((n1++i1) // (n2 ++ i2))
else if c < 0 then
split x1 (p1 // b) (i1 // b) (n1 // b)
split x1 (p1 // b) (i1 // b) (n1 // b)
(* split x1 ((p1 ++ i1)// b) False ((n1 ++i1) // b) *)
else
split x2 (a // (i2 ++ p2)) False (a // (i2 ++ n2))
let cup = ( ++ )
let cap = ( ** )
......@@ -323,13 +323,13 @@ struct
| Split (_,y,p,i,n) ->
let c = X.compare x y in
assert (c <> 0);
if (c < 0) then
if (c < 0) then
if pos then split x a False False
else split x False False a
else split y (cap_atom x pos p) (cap_atom x pos i) (cap_atom x pos n)
*)
(*
let not_triv = function
| True | False -> false
......@@ -339,21 +339,21 @@ struct
let d = diff x y in
if (not_triv x) && (not_triv y) then
Format.fprintf Format.std_formatter "X = %a@\nY = %a@\nX\\Z = %a@\n"
dump x dump y dump d;
dump x dump y dump d;
d
let cap x y =
let d = cap x y in
if (not_triv x) && (not_triv y) then
Format.fprintf Format.std_formatter "X = %a@\nY = %a@\nX**Z = %a@\n"
dump x dump y dump d;
dump x dump y dump d;
d
let cup x y =
let d = cup x y in
if (not_triv x) && (not_triv y) then
Format.fprintf Format.std_formatter "X = %a@\nY = %a@\nX++Z = %a@\n"
dump x dump y dump d;
dump x dump y dump d;
d
*)
end
......@@ -388,20 +388,20 @@ struct
module W = Weak(*Myweak*).Make(
struct
type t = node
let hash = function
| Zero | One -> assert false
| Branch (v,yes,no,_,_) ->
| Branch (v,yes,no,_,_) ->
1 + 17*X.hash v + 257*(id yes) + 65537*(id no)
let equal x y = (x == y) || match x,y with
| Branch (v1,yes1,no1,id1,_), Branch (v2,yes2,no2,id2,_) ->
(id1 == 0 || id2 == 0) && X.equal v1 v2 &&
(id1 == 0 || id2 == 0) && X.equal v1 v2 &&
(yes1 == yes2) && (no1 == no2)
| _ -> assert false
end)
let table = W.create 16383
type branch =
type branch =
{ v : X.t; yes : node; no : node; mutable id : int; neg : branch }
let mk v yes no =
if yes == no then yes
......@@ -409,7 +409,7 @@ struct
let rec pos = Branch (v,yes,no,0,Branch (v,neg yes,neg no,0,pos)) in
let x = W.merge table pos in
let pos : branch = Obj.magic x in
if (pos.id == 0)
if (pos.id == 0)
then (let n = !max_id in
max_id := succ n;
pos.id <- n;
......@@ -431,15 +431,15 @@ struct
| Branch (v1,yes1,no1,id1,neg1), Branch (v2,yes2,no2,id2,neg2) ->
if (x1 == neg2) then One
else
let k,h =
let k,h =
if id1<id2 then (x1,x2),id1+65537*id2 else (x2,x1),id2+65537*id1 in
let h = (h land max_int) mod memo_size in
let i = memo_occ.(h) in
let k' = memo_keys.(h) in
if (k' != dummy) && (eg2 k k')
if (k' != dummy) && (eg2 k k')
then (memo_occ.(h) <- succ i; memo_vals.(h))
else
let r =
else
let r =
let c = X.compare v1 v2 in
if (c = 0) then mk v1 (cup yes1 yes2) (cup no1 no2)
else if (c < 0) then mk v1 (cup yes1 x2) (cup no1 x2)
......@@ -448,12 +448,12 @@ struct
memo_occ.(h) <- 1)
else memo_occ.(h) <- pred i;
r
let rec dump ppf = function
| One -> Format.fprintf ppf "+"
| Zero -> Format.fprintf ppf "-"
| Branch (x,p,n,id,_) ->
Format.fprintf ppf "%i:%a(@[%a,%a@])"
| Branch (x,p,n,id,_) ->
Format.fprintf ppf "%i:%a(@[%a,%a@])"
id
X.dump x dump p dump n
......@@ -461,10 +461,10 @@ struct
let cup x y =
let d = cup x y in
Format.fprintf Format.std_formatter "X = %a@\nY = %a@\nX+Z = %a@\n"
dump x dump y dump d;
dump x dump y dump d;
d
*)
let cap x1 x2 = neg (cup (neg x1) (neg x2))
let diff x1 x2 = neg (cup (neg x1) x2)
......@@ -482,20 +482,20 @@ struct
| Branch (x,p,n,_,_) ->
let flag = ref false in
let b () = if !flag then Format.fprintf ppf " | " else flag := true in
(match p with
(match p with
| One -> b(); Format.fprintf ppf "%a" f x
| Zero -> ()
| _ -> b (); Format.fprintf ppf "%a & @[(%a)@]" f x (print f) p );
(match n with
(match n with
| One -> b (); Format.fprintf ppf "@[~%a@]" f x
| Zero -> ()
| _ -> b (); Format.fprintf ppf "@[~%a@] & @[(%a)@]" f x (print f) n)
let print a f = function
| One -> [ fun ppf -> Format.fprintf ppf "%s" a ]
| Zero -> []
| c -> [ fun ppf -> print f ppf c ]
let rec get accu pos neg = function
| One -> (pos,neg) :: accu
| Zero -> accu
......@@ -504,9 +504,9 @@ struct
let accu = get accu (x::pos) neg p in
let accu = get accu pos (x::neg) n in
accu
let get x = get [] [] [] x
let compute ~empty ~full ~cup ~cap ~diff ~atom b =
let rec aux = function
| One -> full
......@@ -517,12 +517,12 @@ struct
cup p n
in
aux b
let empty = Zero
let full = One
let rec serialize t = function
| (Zero | One) as b ->
| (Zero | One) as b ->
Serialize.Put.bool t true; Serialize.Put.bool t (b == One)
| Branch (x,p,n,_,_) ->
Serialize.Put.bool t false;
......@@ -544,13 +544,13 @@ struct
(* mk x p n is not ok, because order of keys might have changed!
OPT TODO: detect when this is ok *)
let trivially_disjoint x y = neg x == y
let trivially_disjoint x y = neg x == y
let compare x y = compare (id x) (id y)
let equal x y = x == y
let hash x = id x
let check x = ()
type bdd = False | True | Br of elem * t * t
type bdd = False | True | Br of elem * t * t
let br = function
| Zero -> False | One -> True | Branch (x,p,n,_,_) -> Br (x,p,n)
end
......@@ -570,19 +570,19 @@ module Make2(X : Custom.T) = struct
let tset_equal = ref ()
let tset_compare = ref ()
module rec TSet : Hashset.SET with type elt = TSet.t s =
module rec TSet : Hashset.SET with type elt = TSet.t s =
Hashset.MakeSet(
struct
type t = TSet.t s
let compare t1 t2 =
if (t1 == t2) then 0
let compare t1 t2 =
if (t1 == t2) then 0
else let x = t1.hash and y = t2.hash in
if x < y then (-1) else if x > y then 1
else let c = XSet.compare t1.pos t2.pos in if c <> 0 then c
else let c = XSet.compare t1.neg t2.neg in if c <> 0 then c
else (Obj.magic !tset_compare) t1.sub t2.sub
let equal t1 t2 =
let equal t1 t2 =
(t1 == t2) ||
(t1.hash == t2.hash &&
XSet.equal t1.pos t2.pos &&
......@@ -591,23 +591,23 @@ module Make2(X : Custom.T) = struct
let hash t = t.hash
end)
let () =
let () =
tset_compare := Obj.magic TSet.compare;
tset_equal := Obj.magic TSet.equal
type elem = X.t
type t = TSet.t s
let compare t1 t2 =
if (t1 == t2) then 0
let compare t1 t2 =
if (t1 == t2) then 0
else let x = t1.hash and y = t2.hash in
if x < y then (-1) else if x > y then 1
else let c = XSet.compare t1.pos t2.pos in if c <> 0 then c
else let c = XSet.compare t1.neg t2.neg in if c <> 0 then c
else TSet.compare t1.sub t2.sub
let equal t1 t2 =
let equal t1 t2 =
(t1 == t2) ||
(t1.hash == t2.hash &&
XSet.equal t1.pos t2.pos &&
......@@ -635,7 +635,7 @@ module Make2(X : Custom.T) = struct
sub = sub;
(* vars = vars; *)
hash = XSet.hash pos + 17 * XSet.hash neg + 257 * TSet.hash sub }
let any = make XSet.empty XSet.empty TSet.empty
let empty = make XSet.empty XSet.empty (TSet.singleton any)
......@@ -643,7 +643,7 @@ module Make2(X : Custom.T) = struct
let atom x = make (XSet.singleton x) XSet.empty TSet.empty
let compl t =
if t == any then empty else if t == empty then any
if t == any then empty else if t == empty then any
else
match XSet.is_empty t.pos, XSet.is_empty t.neg, TSet.is_empty t.sub with
| true,true,false ->
......@@ -672,13 +672,13 @@ module Make2(X : Custom.T) = struct
let cap t1 t2 =
if (t1 == any) || (equal t1 t2) || (triv_subset t2 t1) then t2
if (t1 == any) || (equal t1 t2) || (triv_subset t2 t1) then t2
else if (t2 == any) || (triv_subset t1 t2) then t1
else if (t1 == empty || t2 == empty)
else if (t1 == empty || t2 == empty)
|| not (XSet.disjoint t1.pos t2.neg)
|| not (XSet.disjoint t1.neg t2.pos)
|| TSet.mem t1 t2.sub
|| TSet.mem t2 t1.sub then empty
|| TSet.mem t2 t1.sub then empty
else