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Commit d8133b55 authored by Andrei Paskevich's avatar Andrei Paskevich
Browse files

rewrite t_s_map/f_s_map to get rid of open/close

parent a343147e
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Showing with 164 additions and 155 deletions
src/core/term.ml
View file @ d8133b55
......@@ -194,7 +194,7 @@ let pat_map fn pat = match pat.pat_node with
let rec pat_s_map fnT fnV fnF pat =
let fn p = pat_s_map fnT fnV fnF p in
let ty = ty_s_map fnT pat.pat_ty in
let ty = fnT pat.pat_ty in
match pat.pat_node with
| Pwild -> pat_wild ty
| Pvar v -> pat_var (fnV v ty)
......@@ -963,32 +963,13 @@ let f_any_trans prT prF f =
with FoldSkip -> true
*)
(* smart constructors *)
(* unsafe constructors with type checking *)
let t_let v t1 t2 =
if v.vs_ty == t1.t_ty then t_let v t1 (t_abst_single v t2)
else raise TypeMismatch
if v.vs_ty == t1.t_ty then t_let v t1 t2 else raise TypeMismatch
let f_let v t1 f2 =
if v.vs_ty == t1.t_ty then f_let v t1 (f_abst_single v f2)
else raise TypeMismatch
let t_eps v f = t_eps v (f_abst_single v f)
exception NonLinear of vsymbol
let f_quant q vl tl f = if vl = [] then f else
let i = ref (-1) in
let add m v =
if Mvs.mem v m then raise (NonLinear v);
incr i; Mvs.add v !i m
in
let m = List.fold_left add Mvs.empty vl in
let tl = tr_map (t_abst m 0) (f_abst m 0) tl in
f_quant q vl (!i + 1) tl (f_abst m 0 f)
let f_forall = f_quant Fforall
let f_exists = f_quant Fexists
if v.vs_ty == t1.t_ty then f_let v t1 f2 else raise TypeMismatch
let t_app f tl ty =
let args, res = f.fs_scheme in
......@@ -1008,6 +989,151 @@ let f_app p tl =
in
f_app p tl
let t_case t bl ty =
let t_check_branch (p, _, tbr) =
if tbr.t_ty != ty then raise TypeMismatch;
if p.pat_ty != t.t_ty then raise TypeMismatch
in
List.iter t_check_branch bl;
t_case t bl ty
let f_case t bl =
let f_check_branch (p, _, fbr) =
if p.pat_ty != t.t_ty then raise TypeMismatch
in
List.iter f_check_branch bl;
f_case t bl
(* symbol-wise map *)
let rec t_s_map fnT fnV fnF fnP t =
let fn_t = t_s_map fnT fnV fnF fnP in
let fn_f = f_s_map fnT fnV fnF fnP in
let fn_b (pat, nv, t) = (pat_s_map fnT fnV fnF pat, nv, fn_t t) in
let ty = fnT t.t_ty in
t_label_try t.t_label (match t.t_node with
| Tbvar n -> t_bvar n ty
| Tvar v -> t_var (fnV v ty)
| Tconst _ -> t
| Tapp (f, tl) -> t_app (fnF f) (List.map fn_t tl) ty
| Tlet (t1, (u, t2)) ->
let t1 = fn_t t1 in t_let (fnV u t1.t_ty) t1 (fn_t t2)
| Tcase (t1, bl) -> t_case (fn_t t1) (List.map fn_b bl) ty
| Teps (u, f) -> t_eps (fnV u ty) (fn_f f))
and f_s_map fnT fnV fnF fnP f =
let fn_t = t_s_map fnT fnV fnF fnP in
let fn_f = f_s_map fnT fnV fnF fnP in
let fn_b (pat, nv, f) = (pat_s_map fnT fnV fnF pat, nv, fn_f f) in
f_label_try f.f_label (match f.f_node with
| Fapp (p, tl) -> f_app (fnP p) (List.map fn_t tl)
| Fquant (q, (vl, nv, tl, f1)) ->
let tl = tr_map fn_t fn_f tl in
let fn_v u = fnV u (fnT u.vs_ty) in
f_quant q (List.map fn_v vl) nv tl (fn_f f1)
| Fbinop (op, f1, f2) -> f_binary op (fn_f f1) (fn_f f2)
| Fnot f1 -> f_not (fn_f f1)
| Ftrue | Ffalse -> f
| Fif (f1, f2, f3) -> f_if (fn_f f1) (fn_f f2) (fn_f f3)
| Flet (t, (u, f1)) ->
let t1 = fn_t t in f_let (fnV u t1.t_ty) t1 (fn_f f1)
| Fcase (t, bl) -> f_case (fn_t t) (List.map fn_b bl))
let get_fnV () =
let ht = Hid.create 17 in
let fnV vs ty =
if vs.vs_ty == ty then vs else
try Hid.find ht vs.vs_name with Not_found ->
let nv = create_vsymbol (id_dup vs.vs_name) ty in
Hid.add ht vs.vs_name nv;
nv
in
fnV
let get_fnT fn =
let ht = Hashtbl.create 17 in
let fnT ty =
try Hashtbl.find ht ty.ty_tag with Not_found ->
let nt = ty_s_map fn ty in
Hashtbl.add ht ty.ty_tag nt;
nt
in
fnT
let t_s_map fnT fnF fnP t = t_s_map (get_fnT fnT) (get_fnV ()) fnF fnP t
let f_s_map fnT fnF fnP f = f_s_map (get_fnT fnT) (get_fnV ()) fnF fnP f
let pat_s_map fnT fnF pat = pat_s_map (get_fnT fnT) (get_fnV ()) fnF pat
(* symbol-wise fold *)
let rec t_s_fold fnT fnF fnP acc t =
let fn_t = t_s_fold fnT fnF fnP in
let fn_f = f_s_fold fnT fnF fnP in
let fn_b acc (pat,_,t) = fn_t (pat_s_fold fnT fnF acc pat) t in
let acc = ty_s_fold fnT acc t.t_ty in
match t.t_node with
| Tbvar _ | Tvar _ | Tconst _ -> acc
| Tapp (f, tl) -> List.fold_left fn_t (fnF acc f) tl
| Tlet (t1, (_,t2)) -> fn_t (fn_t acc t1) t2
| Tcase (t1, bl) -> List.fold_left fn_b (fn_t acc t1) bl
| Teps (_,f) -> fn_f acc f
and f_s_fold fnT fnF fnP acc f =
let fn_t = t_s_fold fnT fnF fnP in
let fn_f = f_s_fold fnT fnF fnP in
let fn_b acc (pat,_,f) = fn_f (pat_s_fold fnT fnF acc pat) f in
let fn_v acc u = ty_s_fold fnT acc u.vs_ty in
match f.f_node with
| Fapp (p, tl) -> List.fold_left fn_t (fnP acc p) tl
| Fquant (q, (vl,_,tl,f1)) ->
let acc = List.fold_left fn_v acc vl in
fn_f (tr_fold fn_t fn_f acc tl) f1
| Fbinop (op, f1, f2) -> fn_f (fn_f acc f1) f2
| Fnot f1 -> fn_f acc f1
| Ftrue | Ffalse -> acc
| Fif (f1, f2, f3) -> fn_f (fn_f (fn_f acc f1) f2) f3
| Flet (t, (_,f1)) -> fn_f (fn_t acc t) f1
| Fcase (t, bl) -> List.fold_left fn_b (fn_t acc t) bl
let t_s_all prT prF prP t =
try t_s_fold (all_fn prT) (all_fn prF) (all_fn prP) true t
with FoldSkip -> false
let f_s_all prT prF prP f =
try f_s_fold (all_fn prT) (all_fn prF) (all_fn prP) true f
with FoldSkip -> false
let t_s_any prT prF prP t =
try t_s_fold (any_fn prT) (any_fn prF) (any_fn prP) false t
with FoldSkip -> true
let f_s_any prT prF prP f =
try f_s_fold (any_fn prT) (any_fn prF) (any_fn prP) false f
with FoldSkip -> true
(* safe smart constructors *)
let t_let v t1 t2 = t_let v t1 (t_abst_single v t2)
let f_let v t1 f2 = f_let v t1 (f_abst_single v f2)
let t_eps v f = t_eps v (f_abst_single v f)
exception NonLinear of vsymbol
let f_quant q vl tl f = if vl = [] then f else
let i = ref (-1) in
let add m v =
if Mvs.mem v m then raise (NonLinear v);
incr i; Mvs.add v !i m
in
let m = List.fold_left add Mvs.empty vl in
let tl = tr_map (t_abst m 0) (f_abst m 0) tl in
f_quant q vl (!i + 1) tl (f_abst m 0 f)
let f_forall = f_quant Fforall
let f_exists = f_quant Fexists
let pat_varmap p =
let i = ref (-1) in
let rec mk_map acc p = match p.pat_node with
......@@ -1024,15 +1150,12 @@ let pat_varmap p =
let t_case t bl ty =
let t_make_branch (p, tbr) =
if tbr.t_ty != ty then raise TypeMismatch;
if p.pat_ty != t.t_ty then raise TypeMismatch;
let m, nv = pat_varmap p in (p, nv, t_abst m 0 tbr)
in
t_case t (List.map t_make_branch bl) ty
let f_case t bl =
let f_make_branch (p, fbr) =
if p.pat_ty != t.t_ty then raise TypeMismatch;
let m, nv = pat_varmap p in (p, nv, f_abst m 0 fbr)
in
f_case t (List.map f_make_branch bl)
......@@ -1135,120 +1258,6 @@ let t_any prT prF t =
let f_any prT prF f =
try f_fold (any_fn prT) (any_fn prF) false f with FoldSkip -> true
(* symbol-wise map *)
let rec t_s_map fnT fnV fnF fnP t =
let fn_t t = t_s_map fnT fnV fnF fnP t in
let fn_f f = f_s_map fnT fnV fnF fnP f in
let ty = ty_s_map fnT t.t_ty in
t_label_try t.t_label (match t.t_node with
| Tbvar _ ->
assert false
| Tvar v ->
t_var (fnV v ty)
| Tconst _ ->
t
| Tapp (f, tl) ->
t_app (fnF f) (List.map fn_t tl) ty
| Tlet (t1, b) ->
let t1 = fn_t t1 in
let u,t2 = t_open_bound b in
t_let (fnV u t1.t_ty) t1 (fn_t t2)
| Tcase (t1, bl) ->
let fn_b b = t_s_branch fnT fnV fnF fnP b in
t_case (fn_t t1) (List.map fn_b bl) ty
| Teps b ->
let u,f = f_open_bound b in
t_eps (fnV u ty) (fn_f f))
and t_s_branch fnT fnV fnF fnP b =
let pat,_,t = t_open_branch b in
(pat_s_map fnT fnV fnF pat, t_s_map fnT fnV fnF fnP t)
and f_s_map fnT fnV fnF fnP f =
let fn_t t = t_s_map fnT fnV fnF fnP t in
let fn_f f = f_s_map fnT fnV fnF fnP f in
f_label_try f.f_label (match f.f_node with
| Fapp (p, tl) ->
f_app (fnP p) (List.map fn_t tl)
| Fquant (q, b) ->
let vl, tl, f1 = f_open_quant b in
let tl = tr_map fn_t fn_f tl in
let fn_v u = fnV u (ty_s_map fnT u.vs_ty) in
f_quant q (List.map fn_v vl) tl (fn_f f1)
| Fbinop (op, f1, f2) ->
f_binary op (fn_f f1) (fn_f f2)
| Fnot f1 ->
f_not (fn_f f1)
| Ftrue | Ffalse ->
f
| Fif (f1, f2, f3) ->
f_if (fn_f f1) (fn_f f2) (fn_f f3)
| Flet (t, b) ->
let t1 = fn_t t in
let u,f1 = f_open_bound b in
f_let (fnV u t1.t_ty) t1 (fn_f f1)
| Fcase (t, bl) ->
let fn_b b = f_s_branch fnT fnV fnF fnP b in
f_case (fn_t t) (List.map fn_b bl))
and f_s_branch fnT fnV fnF fnP b =
let pat,_,f = f_open_branch b in
(pat_s_map fnT fnV fnF pat, f_s_map fnT fnV fnF fnP f)
(* symbol-wise fold *)
let rec t_s_fold fnT fnF fnP acc t =
let fn_t acc t = t_s_fold fnT fnF fnP acc t in
let fn_f acc f = f_s_fold fnT fnF fnP acc f in
let fn_b acc b = t_s_branch fnT fnF fnP acc b in
let acc = ty_s_fold fnT acc t.t_ty in
match t.t_node with
| Tbvar _ | Tvar _ | Tconst _ -> acc
| Tapp (f, tl) -> List.fold_left fn_t (fnF acc f) tl
| Tlet (t1, (_,t2)) -> fn_t (fn_t acc t1) t2
| Tcase (t1, bl) -> List.fold_left fn_b (fn_t acc t1) bl
| Teps (_,f) -> fn_f acc f
and t_s_branch fnT fnF fnP acc (pat,_,t) =
t_s_fold fnT fnF fnP (pat_s_fold fnT fnF acc pat) t
and f_s_fold fnT fnF fnP acc f =
let fn_t acc t = t_s_fold fnT fnF fnP acc t in
let fn_f acc f = f_s_fold fnT fnF fnP acc f in
let fn_b acc b = f_s_branch fnT fnF fnP acc b in
let fn_v acc u = ty_s_fold fnT acc u.vs_ty in
match f.f_node with
| Fapp (p, tl) -> List.fold_left fn_t (fnP acc p) tl
| Fquant (q, (vl,_,tl,f1)) ->
let acc = List.fold_left fn_v acc vl in
fn_f (tr_fold fn_t fn_f acc tl) f1
| Fbinop (op, f1, f2) -> fn_f (fn_f acc f1) f2
| Fnot f1 -> fn_f acc f1
| Ftrue | Ffalse -> acc
| Fif (f1, f2, f3) -> fn_f (fn_f (fn_f acc f1) f2) f3
| Flet (t, (_,f1)) -> fn_f (fn_t acc t) f1
| Fcase (t, bl) -> List.fold_left fn_b (fn_t acc t) bl
and f_s_branch fnT fnF fnP acc (pat,_,f) =
f_s_fold fnT fnF fnP (pat_s_fold fnT fnF acc pat) f
let t_s_all prT prF prP t =
try t_s_fold (all_fn prT) (all_fn prF) (all_fn prP) true t
with FoldSkip -> false
let f_s_all prT prF prP f =
try f_s_fold (all_fn prT) (all_fn prF) (all_fn prP) true f
with FoldSkip -> false
let t_s_any prT prF prP t =
try t_s_fold (any_fn prT) (any_fn prF) (any_fn prP) false t
with FoldSkip -> true
let f_s_any prT prF prP f =
try f_s_fold (any_fn prT) (any_fn prF) (any_fn prP) false f
with FoldSkip -> true
(* built-in symbols *)
let ps_equ =
......
src/core/term.mli
View file @ d8133b55
......@@ -96,11 +96,11 @@ val pat_any : (pattern -> bool) -> pattern -> bool
(* symbol-wise map/fold *)
val pat_s_map : (tysymbol -> tysymbol) -> (vsymbol -> ty -> vsymbol)
-> (fsymbol -> fsymbol) -> pattern -> pattern
val pat_s_map :
(tysymbol -> tysymbol) -> (fsymbol -> fsymbol) -> pattern -> pattern
val pat_s_fold :
('a -> tysymbol -> 'a) -> ('a -> fsymbol -> 'a) -> 'a -> pattern -> 'a
('a -> tysymbol -> 'a) -> ('a -> fsymbol -> 'a) -> 'a -> pattern -> 'a
val pat_s_all : (tysymbol -> bool) -> (fsymbol -> bool) -> pattern -> bool
val pat_s_any : (tysymbol -> bool) -> (fsymbol -> bool) -> pattern -> bool
......@@ -234,10 +234,10 @@ val t_map : (term -> term) -> (fmla -> fmla) -> term -> term
val f_map : (term -> term) -> (fmla -> fmla) -> fmla -> fmla
val t_fold : ('a -> term -> 'a) -> ('a -> fmla -> 'a)
-> 'a -> term -> 'a
-> 'a -> term -> 'a
val f_fold : ('a -> term -> 'a) -> ('a -> fmla -> 'a)
-> 'a -> fmla -> 'a
-> 'a -> fmla -> 'a
val t_all : (term -> bool) -> (fmla -> bool) -> term -> bool
val f_all : (term -> bool) -> (fmla -> bool) -> fmla -> bool
......@@ -246,29 +246,29 @@ val f_any : (term -> bool) -> (fmla -> bool) -> fmla -> bool
(* symbol-wise map/fold *)
val t_s_map : (tysymbol -> tysymbol) -> (vsymbol -> ty -> vsymbol)
-> (fsymbol -> fsymbol) -> (psymbol -> psymbol) -> term -> term
val t_s_map : (tysymbol -> tysymbol) -> (fsymbol -> fsymbol)
-> (psymbol -> psymbol) -> term -> term
val f_s_map : (tysymbol -> tysymbol) -> (vsymbol -> ty -> vsymbol)
-> (fsymbol -> fsymbol) -> (psymbol -> psymbol) -> fmla -> fmla
val f_s_map : (tysymbol -> tysymbol) -> (fsymbol -> fsymbol)
-> (psymbol -> psymbol) -> fmla -> fmla
val t_s_fold : ('a -> tysymbol -> 'a) -> ('a -> fsymbol -> 'a)
-> ('a -> psymbol -> 'a) -> 'a -> term -> 'a
-> ('a -> psymbol -> 'a) -> 'a -> term -> 'a
val f_s_fold : ('a -> tysymbol -> 'a) -> ('a -> fsymbol -> 'a)
-> ('a -> psymbol -> 'a) -> 'a -> fmla -> 'a
-> ('a -> psymbol -> 'a) -> 'a -> fmla -> 'a
val t_s_all : (tysymbol -> bool) -> (fsymbol -> bool)
-> (psymbol -> bool) -> term -> bool
-> (psymbol -> bool) -> term -> bool
val f_s_all : (tysymbol -> bool) -> (fsymbol -> bool)
-> (psymbol -> bool) -> fmla -> bool
-> (psymbol -> bool) -> fmla -> bool
val t_s_any : (tysymbol -> bool) -> (fsymbol -> bool)
-> (psymbol -> bool) -> term -> bool
-> (psymbol -> bool) -> term -> bool
val f_s_any : (tysymbol -> bool) -> (fsymbol -> bool)
-> (psymbol -> bool) -> fmla -> bool
-> (psymbol -> bool) -> fmla -> bool
(* map/fold over free variables *)
......
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