* http://helm.cs.unibo.it/
*)
+open Printf
+
exception Meta_not_found of int
exception Subst_not_found of int
-
let lookup_meta index metasenv =
try
List.find (fun (index', _, _) -> index = index') metasenv
let clean_up_local_context subst metasenv n l =
let cc =
(try
- let (cc,_) = lookup_subst n subst in cc
+ let (cc,_,_) = lookup_subst n subst in cc
with Subst_not_found _ ->
try
let (_,cc,_) = lookup_meta n metasenv in cc
is_closed 0
;;
-(* CPS iterators on Cic.term ************************************************)
-
-let rec visit_l visit_t map f r = function
- | [] -> f r
- | h :: tail ->
- let f r = visit_l visit_t map f r tail in
- visit_t f r (map h)
-
-let meta_closed t =
- let rec visit_t f r = function
- | Cic.Meta _ -> raise Exit
- | Cic.Implicit _
- | Cic.Sort _
- | Cic.Rel _ -> f r
- | Cic.Cast (t, u)
- | Cic.Prod (_, t, u)
- | Cic.Lambda (_, t, u)
- | Cic.LetIn (_, t, u) ->
- let f r = visit_t f r u in visit_t f r t
- | Cic.Appl tl ->
- visit_l visit_t (fun x -> x) f r tl
- | Cic.Fix (_, tl) ->
- let f r = visit_l visit_t (fun (_, _, _, u) -> u) f r tl in
- visit_l visit_t (fun (_, _, t, _) -> t) f r tl
- | Cic.CoFix (_, tl) ->
- let f r = visit_l visit_t (fun (_, _, u) -> u) f r tl in
- visit_l visit_t (fun (_, t, _) -> t) f r tl
- | Cic.Var (k, tl)
- | Cic.Const (k, tl)
- | Cic.MutInd (k, _, tl)
- | Cic.MutConstruct (k, _, _, tl) ->
- visit_l visit_t (fun (_, u) -> u) f r tl
- | Cic.MutCase (_, _, t, u, tl) ->
- let f r = visit_l visit_t (fun u -> u) f r tl in
- let f r = visit_t f r u in
- visit_t f r t
- in
- try visit_t (fun x -> x) () t; false with Exit -> true
-
-let xpointer_RE = Str.regexp "[^#]+#xpointer(\\(.*\\))"
+let rec is_meta_closed =
+ function
+ Cic.Rel _ -> true
+ | Cic.Meta _ -> false
+ | Cic.Sort _ -> true
+ | Cic.Implicit _ -> assert false
+ | Cic.Cast (te,ty) -> is_meta_closed te && is_meta_closed ty
+ | Cic.Prod (name,so,dest) -> is_meta_closed so && is_meta_closed dest
+ | Cic.Lambda (_,so,dest) -> is_meta_closed so && is_meta_closed dest
+ | Cic.LetIn (_,so,dest) -> is_meta_closed so && is_meta_closed dest
+ | Cic.Appl l ->
+ List.fold_right (fun x i -> i && is_meta_closed x) l true
+ | Cic.Var (_,exp_named_subst)
+ | Cic.Const (_,exp_named_subst)
+ | Cic.MutInd (_,_,exp_named_subst)
+ | Cic.MutConstruct (_,_,_,exp_named_subst) ->
+ List.fold_right (fun (_,x) i -> i && is_meta_closed x)
+ exp_named_subst true
+ | Cic.MutCase (_,_,out,te,pl) ->
+ is_meta_closed out && is_meta_closed te &&
+ List.fold_right (fun x i -> i && is_meta_closed x) pl true
+ | Cic.Fix (_,fl) ->
+ List.fold_right
+ (fun (_,_,ty,bo) i -> i && is_meta_closed ty && is_meta_closed bo
+ ) fl true
+ | Cic.CoFix (_,fl) ->
+ List.fold_right
+ (fun (_,ty,bo) i -> i && is_meta_closed ty && is_meta_closed bo
+ ) fl true
+;;
+
+let xpointer_RE = Str.regexp "\\([^#]+\\)#xpointer(\\(.*\\))"
let slash_RE = Str.regexp "/"
-let term_of_uri s =
- let uri = UriManager.uri_of_string s in
+let term_of_uri uri =
+ let s = UriManager.string_of_uri uri in
try
- (if String.sub s (String.length s - 4) 4 = ".con" then
+ (if UriManager.uri_is_con uri then
Cic.Const (uri, [])
- else if String.sub s (String.length s - 4) 4 = ".var" then
+ else if UriManager.uri_is_var uri then
Cic.Var (uri, [])
else if not (Str.string_match xpointer_RE s 0) then
raise (UriManager.IllFormedUri s)
else
- (match Str.split slash_RE (Str.matched_group 1 s) with
- | [_; tyno] -> Cic.MutInd (uri, int_of_string tyno - 1, [])
+ let (baseuri,xpointer) = (Str.matched_group 1 s, Str.matched_group 2 s) in
+ let baseuri = UriManager.uri_of_string baseuri in
+ (match Str.split slash_RE xpointer with
+ | [_; tyno] -> Cic.MutInd (baseuri, int_of_string tyno - 1, [])
| [_; tyno; consno] ->
Cic.MutConstruct
- (uri, int_of_string tyno - 1, int_of_string consno, [])
+ (baseuri, int_of_string tyno - 1, int_of_string consno, [])
| _ -> raise Exit))
with
| Exit
| Failure _
| Not_found -> raise (UriManager.IllFormedUri s)
+let uri_of_term = function
+ | Cic.Const (uri, [])
+ | Cic.Var (uri, []) -> uri
+ | Cic.MutInd (baseuri, tyno, []) ->
+ UriManager.uri_of_string
+ (sprintf "%s#xpointer(1/%d)" (UriManager.string_of_uri baseuri) (tyno+1))
+ | Cic.MutConstruct (baseuri, tyno, consno, []) ->
+ UriManager.uri_of_string
+ (sprintf "%s#xpointer(1/%d/%d)" (UriManager.string_of_uri baseuri)
+ (tyno + 1) consno)
+ | _ -> raise (Invalid_argument "uri_of_term")
+
+
+(*
+let pack terms =
+ List.fold_right
+ (fun term acc -> Cic.Prod (Cic.Anonymous, term, acc))
+ terms (Cic.Sort (Cic.Type (CicUniv.fresh ())))
+
+let rec unpack = function
+ | Cic.Prod (Cic.Anonymous, term, Cic.Sort (Cic.Type _)) -> [term]
+ | Cic.Prod (Cic.Anonymous, term, tgt) -> term :: unpack tgt
+ | _ -> assert false
+*)
+
+let rec strip_prods n = function
+ | t when n = 0 -> t
+ | Cic.Prod (_, _, tgt) when n > 0 -> strip_prods (n-1) tgt
+ | _ -> failwith "not enough prods"
+
+let params_of_obj = function
+ | Cic.Constant (_, _, _, params, _)
+ | Cic.Variable (_, _, _, params, _)
+ | Cic.CurrentProof (_, _, _, _, params, _)
+ | Cic.InductiveDefinition (_, params, _, _) ->
+ params
+
+let attributes_of_obj = function
+ | Cic.Constant (_, _, _, _, attributes)
+ | Cic.Variable (_, _, _, _, attributes)
+ | Cic.CurrentProof (_, _, _, _, _, attributes)
+ | Cic.InductiveDefinition (_, _, _, attributes) ->
+ attributes
+let rec mk_rels howmany from =
+ match howmany with
+ | 0 -> []
+ | _ -> (Cic.Rel (howmany + from)) :: (mk_rels (howmany-1) from)
+
+let id_of_annterm =
+ function
+ | Cic.ARel (id,_,_,_)
+ | Cic.AVar (id,_,_)
+ | Cic.AMeta (id,_,_)
+ | Cic.ASort (id,_)
+ | Cic.AImplicit (id,_)
+ | Cic.ACast (id,_,_)
+ | Cic.AProd (id,_,_,_)
+ | Cic.ALambda (id,_,_,_)
+ | Cic.ALetIn (id,_,_,_)
+ | Cic.AAppl (id,_)
+ | Cic.AConst (id,_,_)
+ | Cic.AMutInd (id,_,_,_)
+ | Cic.AMutConstruct (id,_,_,_,_)
+ | Cic.AMutCase (id,_,_,_,_,_)
+ | Cic.AFix (id,_,_)
+ | Cic.ACoFix (id,_,_) -> id
projects / helm.git / blobdiff