-let cache = NUri.UriHash.create 313;;
+(*
+ ||M|| This file is part of HELM, an Hypertextual, Electronic
+ ||A|| Library of Mathematics, developed at the Computer Science
+ ||T|| Department, University of Bologna, Italy.
+ ||I||
+ ||T|| HELM is free software; you can redistribute it and/or
+ ||A|| modify it under the terms of the GNU General Public License
+ \ / version 2 or (at your option) any later version.
+ \ / This software is distributed as is, NO WARRANTY.
+ V_______________________________________________________________ *)
+
+(* $Id$ *)
-let oldg = ref CicUniv.empty_ugraph;;
+exception CircularDependency of string Lazy.t;;
+exception ObjectNotFound of string Lazy.t;;
+exception BadDependency of string Lazy.t;;
-let load_graph uri =
- let _,g = CicEnvironment.get_obj !oldg uri in
- oldg := g
+let typecheck_obj,already_set = ref (fun _ -> assert false), ref false;;
+let set_typecheck_obj f =
+ if !already_set then
+ assert false
+ else
+ begin
+ typecheck_obj := f;
+ already_set := true
+ end
;;
-let get_graph _ = !oldg;;
+let cache = NUri.UriHash.create 313;;
+let frozen_list = ref [];;
+
+exception Propagate of NUri.uri * exn;;
let get_checked_obj u =
- try let b, o = NUri.UriHash.find cache u in
- if not b then assert false else o
- with Not_found ->
- let ouri = NUri.ouri_of_nuri u in
- let o,_ =
- try
- CicEnvironment.get_obj CicUniv.oblivion_ugraph ouri
- with exn -> prerr_endline (UriManager.string_of_uri ouri); raise exn
- in
- (* FIX: add all objects to the environment and give back the last one *)
- let l = OCic2NCic.convert_obj ouri o in
- List.iter (fun (u,_,_,_,_ as o) ->
-(* prerr_endline ("+"^NUri.string_of_uri u); *)
- NUri.UriHash.add cache u (false,o)) l;
- HExtlib.list_last l
-;;
-
-let get_obj u =
- try NUri.UriHash.find cache u
- with Not_found ->
- (* in th final implementation should get it from disk *)
- let ouri = NUri.ouri_of_nuri u in
- let o,_ = CicEnvironment.get_obj CicUniv.oblivion_ugraph ouri in
- let l = OCic2NCic.convert_obj ouri o in
- List.iter (fun (u,_,_,_,_ as o) ->
-(* prerr_endline ("+"^NUri.string_of_uri u); *)
- NUri.UriHash.add cache u (false,o)) l;
- false, HExtlib.list_last l
+ if List.exists (fun (k,_) -> NUri.eq u k) !frozen_list
+ then
+ raise (CircularDependency (lazy (NUri.string_of_uri u)))
+ else
+ let obj =
+ try NUri.UriHash.find cache u
+ with
+ Not_found ->
+ let saved_frozen_list = !frozen_list in
+ try
+ let obj =
+ try NCicLibrary.get_obj u
+ with
+ NCicLibrary.ObjectNotFound m -> raise (ObjectNotFound m)
+ in
+ frozen_list := (u,obj)::saved_frozen_list;
+ !typecheck_obj obj;
+ frozen_list := saved_frozen_list;
+ let obj = `WellTyped obj in
+ NUri.UriHash.add cache u obj;
+ obj
+ with
+ Sys.Break as e ->
+ frozen_list := saved_frozen_list;
+ raise e
+ | Propagate (u',_) as e' ->
+ frozen_list := saved_frozen_list;
+ let exn = `Exn (BadDependency (lazy (NUri.string_of_uri u ^
+ " depends (recursively) on " ^ NUri.string_of_uri u' ^
+ " which is not well-typed"))) in
+ NUri.UriHash.add cache u exn;
+ if saved_frozen_list = [] then
+ exn
+ else
+ raise e'
+ | e ->
+ frozen_list := saved_frozen_list;
+ let exn = `Exn e in
+ NUri.UriHash.add cache u exn;
+ if saved_frozen_list = [] then
+ exn
+ else
+ raise (Propagate (u,e))
+ in
+ match obj with
+ `WellTyped o -> o
+ | `Exn e -> raise e
;;
-let add_obj (u,_,_,_,_ as o) =
- NUri.UriHash.replace cache u (true, o)
+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.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
| _ -> prerr_endline "get_checked_indtys on a non ind"; assert false
;;
-let get_checked_fix_or_cofix b = function
- | NReference.Ref (_, uri, (NReference.Fix (fixno,_)|NReference.CoFix fixno))->
+let get_checked_fixes_or_cofixes = function
+ | NReference.Ref (uri, (NReference.Fix (fixno,_,_)|NReference.CoFix fixno))->
(match get_checked_obj uri with
- | _,height,_,_, NCic.Fixpoint (is_fix,funcs,att) when is_fix = b ->
+ | _,height,_,_, NCic.Fixpoint (_,funcs,att) ->
funcs, att, height
| _ ->prerr_endline "get_checked_(co)fix on a non (co)fix 2";assert false)
| r -> prerr_endline ("get_checked_(co)fix on " ^ NReference.string_of_reference r); assert false
;;
-let get_checked_fixes r = get_checked_fix_or_cofix true r;;
-let get_checked_cofixes r = get_checked_fix_or_cofix false r;;
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 invalidate _ =
- List.iter
- (fun (k,v) ->
- NUri.UriHash.replace cache k (false,v))
- (NUri.UriHash.fold (fun k v -> (@) [k,snd v]) cache [])
+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
+;;
projects / helm.git / blobdiff