exception CircularDependency of string Lazy.t;;
exception ObjectNotFound of string Lazy.t;;
exception BadDependency of string Lazy.t;;
+exception BadConstraint of string Lazy.t;;
+
+let type0 = [false, NUri.uri_of_string ("cic:/matita/pts/Type.univ")]
+
+let le_constraints = ref [] (* strict,a,b *)
+
+let rec le_path_uri avoid strict a b =
+ (not strict && NUri.eq a b) ||
+ List.exists
+ (fun (strict',x,y) ->
+ NUri.eq y b && not (List.exists (NUri.eq x) avoid) &&
+ le_path_uri (x::avoid) (strict && not strict') a x
+ ) !le_constraints
+;;
+
+let leq_path a b = le_path_uri [b] (fst a) (snd a) b;;
+
+let universe_leq a b =
+ match a, b with
+ | a,[(false,b)] -> List.for_all (fun a -> leq_path a b) a
+ | _,_ ->
+ raise (BadConstraint
+ (lazy "trying to check if a universe is less or equal than an inferred universe"))
+
+let universe_eq a b = universe_leq b a || universe_leq a b
+
+let add_le_constraint strict a b =
+ match a,b with
+ | [false,a2],[false,b2] ->
+ if not (le_path_uri [] strict a2 b2) then (
+ if le_path_uri [] (not strict) b2 a2 then
+ (raise (BadConstraint (lazy "universe inconsistency")));
+ le_constraints := (strict,a2,b2) :: !le_constraints)
+ | _ -> raise (BadConstraint
+ (lazy "trying to add a constraint on an inferred universe"))
+;;
let typecheck_obj,already_set = ref (fun _ -> assert false), ref false;;
let set_typecheck_obj f =
| `Exn e -> raise e
;;
+let get_checked_decl = function
+ | NReference.Ref (uri, NReference.Decl) ->
+ (match get_checked_obj uri with
+ | _,height,_,_, NCic.Constant (rlv,name,None,ty,att) ->
+ rlv,name,ty,att,height
+ | _,_,_,_, NCic.Constant (_,_,Some _,_,_) ->
+ prerr_endline "get_checked_decl on a definition"; assert false
+ | _ -> prerr_endline "get_checked_decl on a non decl 2"; assert false)
+ | _ -> prerr_endline "get_checked_decl on a non decl"; assert false
+;;
+
let get_checked_def = function
- | NReference.Ref (_, uri, NReference.Def) ->
+ | NReference.Ref (uri, NReference.Def _) ->
(match get_checked_obj uri with
| _,height,_,_, NCic.Constant (rlv,name,Some bo,ty,att) ->
rlv,name,bo,ty,att,height
;;
let get_checked_indtys = function
- | NReference.Ref (_, uri, (NReference.Ind (_,n)|NReference.Con (n,_))) ->
+ | NReference.Ref (uri, (NReference.Ind (_,n)|NReference.Con (n,_))) ->
(match get_checked_obj uri with
| _,_,_,_, NCic.Inductive (inductive,leftno,tys,att) ->
inductive,leftno,tys,att,n
;;
let get_checked_fixes_or_cofixes = function
- | NReference.Ref (_, uri, (NReference.Fix (fixno,_)|NReference.CoFix fixno))->
+ | NReference.Ref (uri, (NReference.Fix (fixno,_,_)|NReference.CoFix fixno))->
(match get_checked_obj uri with
| _,height,_,_, NCic.Fixpoint (_,funcs,att) ->
funcs, att, height
;;
let get_indty_leftno = function
- | NReference.Ref (_, uri, NReference.Ind _)
- | NReference.Ref (_, uri, NReference.Con _) ->
+ | NReference.Ref (uri, NReference.Ind _)
+ | NReference.Ref (uri, NReference.Con _) ->
(match get_checked_obj uri with
| _,_,_,_, NCic.Inductive (_,left,_,_) -> left
| _ ->prerr_endline "get_indty_leftno called on a non ind 2";assert false)
| _ -> prerr_endline "get_indty_leftno called on a non indty";assert false
;;
+let get_relevance (NReference.Ref (_, infos) as r) =
+ match infos with
+ NReference.Def _ -> let res,_,_,_,_,_ = get_checked_def r in res
+ | NReference.Decl -> let res,_,_,_,_ = get_checked_decl r in res
+ | NReference.Ind _ ->
+ let _,_,tl,_,n = get_checked_indtys r in
+ let res,_,_,_ = List.nth tl n in
+ res
+ | NReference.Con (_,i) ->
+ let _,_,tl,_,n = get_checked_indtys r in
+ let _,_,_,cl = List.nth tl n in
+ let res,_,_ = List.nth cl (i - 1) in
+ res
+ | NReference.Fix (fixno,_,_)
+ | NReference.CoFix fixno ->
+ let fl,_,_ = get_checked_fixes_or_cofixes r in
+ let res,_,_,_,_ = List.nth fl fixno in
+ res
+;;
+
+
let invalidate _ =
assert (!frozen_list = []);
NUri.UriHash.clear cache