X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2Fsoftware%2Fcomponents%2Fng_kernel%2FoCic2NCic.ml;h=2738b1c901835183078c7a24b0f3470475f13f02;hb=1b70a1f66be53f76e475383e86d63c2b5c1fbcaa;hp=6a9dd715a5bc6e79a9da108af9a9171e0083a39f;hpb=345f329e767d0b4a1a87d10e08f92657a95c10ac;p=helm.git diff --git a/helm/software/components/ng_kernel/oCic2NCic.ml b/helm/software/components/ng_kernel/oCic2NCic.ml index 6a9dd715a..2738b1c90 100644 --- a/helm/software/components/ng_kernel/oCic2NCic.ml +++ b/helm/software/components/ng_kernel/oCic2NCic.ml @@ -15,6 +15,45 @@ module Ref = NReference let nuri_of_ouri o = NUri.uri_of_string (UriManager.string_of_uri o);; +let mk_type n = + if n = 0 then + [false, NUri.uri_of_string ("cic:/matita/pts/Type.univ")] + else + [false, NUri.uri_of_string ("cic:/matita/pts/Type"^string_of_int n^".univ")] +;; + +let mk_cprop n = + if n = 0 then + [false, NUri.uri_of_string ("cic:/matita/pts/CProp.univ")] + else + [false, NUri.uri_of_string ("cic:/matita/pts/CProp"^string_of_int n^".univ")] +;; + +let is_proof_irrelevant context ty = + match + CicReduction.whd context + (fst (CicTypeChecker.type_of_aux' [] context ty CicUniv.oblivion_ugraph)) + with + Cic.Sort Cic.Prop -> true + | Cic.Sort _ -> false + | _ -> assert false +;; + +exception InProp;; + +let get_relevance ty = + let rec aux context ty = + match CicReduction.whd context ty with + Cic.Prod (n,s,t) -> + not (is_proof_irrelevant context s)::aux (Some (n,Cic.Decl s)::context) t + | _ -> [] + in aux [] ty +(* | ty -> if is_proof_irrelevant context ty then raise InProp else [] + in + try aux [] ty + with InProp -> []*) +;; + (* porcatissima *) type reference = Ref of NUri.uri * NReference.spec let reference_of_ouri u indinfo = @@ -33,6 +72,16 @@ let strictify = | Fix l -> `Fix (Lazy.force l) ;; +let count_vars vars = + List.length + (List.filter (fun v -> + match fst (CicEnvironment.get_obj CicUniv.oblivion_ugraph v) with + Cic.Variable (_,Some _,_,_,_) -> false + | Cic.Variable (_,None,_,_,_) -> true + | _ -> assert false) vars) +;; + + (***** A function to restrict the context of a term getting rid of unsed variables *******) @@ -66,7 +115,7 @@ let restrict octx ctx ot = | ((_,objs,None)::tl, Cic.Lambda(name,oso,ota), NCic.Lambda(name',so,ta)) -> split_lambdas_and_letins ((Some(name,(Cic.Decl oso)))::octx) (Ce (lazy ((name',NCic.Decl so),objs))::ctx) tl (ota,ta) - | ((_,objs,Some r)::tl,Cic.Lambda(name,oso,ota),NCic.Lambda(name',so,ta)) -> + | ((_,_,Some r)::tl,Cic.Lambda(name,oso,ota),NCic.Lambda(name',so,ta)) -> split_lambdas_and_letins ((Some(name,(Cic.Decl oso)))::octx) (Fix (lazy (r,name',so))::ctx) tl (ota,ta) | ((_,objs,None)::tl,Cic.LetIn(name,obo,oty,ota),NCic.LetIn(nam',bo,ty,ta))-> @@ -103,6 +152,17 @@ let splat mk_pi ctx t = (t,[]) ctx ;; +let osplat mk_pi ctx t = + List.fold_left + (fun t c -> + match c with + | Some (name, Cic.Def (bo,ty)) -> Cic.LetIn (name, ty, bo, t) + | Some (name, Cic.Decl ty) when mk_pi -> Cic.Prod (name, ty, t) + | Some (name, Cic.Decl ty) -> Cic.Lambda (name, ty, t) + | None -> assert false) + t ctx +;; + let context_tassonomy ctx = let rec split inner acc acc1 = function | Ce _ :: tl when inner -> split inner (acc+1) (acc1+1) tl @@ -151,7 +211,7 @@ let splat_args_for_rel ctx t ?rels n_fix = ;; let splat_args ctx t n_fix rels = - let bound, free, _, primo_ce_dopo_fix = context_tassonomy ctx in + let bound, _, _, primo_ce_dopo_fix = context_tassonomy ctx in if ctx = [] then t else let rec aux = function @@ -185,7 +245,7 @@ let fix_outty curi tyno t context outty = 0, Cic.Sort _ -> 0 | 0, Cic.Prod (name,so,ty) -> 1 + count_prods 0 (Some (name, Cic.Decl so)::context) ty - | n, Cic.Prod (name,so,ty) -> + | _, Cic.Prod (name,so,ty) -> count_prods (leftno - 1) (Some (name, Cic.Decl so)::context) ty | _,_ -> assert false in @@ -379,15 +439,15 @@ prerr_endline ("CACHE SAME NAME: " ^ NReference.string_of_reference ref ^ " <==> begin match obj, ref with | (_,_,_,_,NCic.Fixpoint (true,fl,_)) , - NReference.Ref (y,NReference.Fix _) -> + NReference.Ref (_,NReference.Fix _) -> ignore(List.fold_left (fun i (_,name,rno,_,_) -> let ref = NReference.mk_fix i rno ref in Hashtbl.add cache name (ref,obj); i+1 ) 0 fl) | (_,_,_,_,NCic.Fixpoint (false,fl,_)) , - NReference.Ref (y,NReference.CoFix _) -> - ignore(List.fold_left (fun i (_,name,rno,_,_) -> + NReference.Ref (_,NReference.CoFix _) -> + ignore(List.fold_left (fun i (_,name,_,_,_) -> let ref = NReference.mk_cofix i ref in Hashtbl.add cache name (ref,obj); i+1 @@ -398,10 +458,52 @@ prerr_endline ("CACHE SAME NAME: " ^ NReference.string_of_reference ref ^ " <==> with Found ref -> Some ref ;; -(* we are lambda-lifting also variables that do not occur *) -(* ctx does not distinguish successive blocks of cofix, since there may be no - * lambda separating them *) -let convert_term uri t = +let cache1 = UriManager.UriHashtbl.create 313;; +let rec get_height = + function u -> + try + UriManager.UriHashtbl.find cache1 u + with + Not_found -> + let h = ref 0 in + let res = + match fst (CicEnvironment.get_obj CicUniv.oblivion_ugraph u) with + Cic.Constant (_,Some bo,ty,params,_) + | Cic.Variable (_,Some bo,ty,params,_) -> + ignore (height_of_term ~h bo); + ignore (height_of_term ~h ty); + List.iter (function uri -> h := max !h (get_height uri)) params; + 1 + !h + | _ -> 0 + in + UriManager.UriHashtbl.add cache1 u res; + res +and height_of_term ?(h=ref 0) t = + let rec aux = + function + Cic.Rel _ + | Cic.Sort _ -> () + | Cic.Implicit _ -> assert false + | Cic.Var (uri,exp_named_subst) + | Cic.Const (uri,exp_named_subst) + | Cic.MutInd (uri,_,exp_named_subst) + | Cic.MutConstruct (uri,_,_,exp_named_subst) -> + h := max !h (get_height uri); + List.iter (function (_,t) -> aux t) exp_named_subst + | Cic.Meta (_,l) -> List.iter (function None -> () | Some t -> aux t) l + | Cic.Cast (t1,t2) + | Cic.Prod (_,t1,t2) + | Cic.Lambda (_,t1,t2) -> aux t1; aux t2 + | Cic.LetIn (_,s,ty,t) -> aux s; aux ty; aux t + | Cic.Appl l -> List.iter aux l + | Cic.MutCase (_,_,outty,t,pl) -> aux outty; aux t; List.iter aux pl + | Cic.Fix (_, fl) -> List.iter (fun (_, _, ty, bo) -> aux ty; aux bo) fl; incr h + | Cic.CoFix (_, fl) -> List.iter (fun (_, ty, bo) -> aux ty; aux bo) fl; incr h + in + aux t; + 1 + !h +;; + (* k=true if we are converting a term to be pushed in a ctx or if we are converting the type of a fix; k=false if we are converting a term to be put in the body of a fix; @@ -464,14 +566,14 @@ let convert_term uri t = let buri = UriManager.uri_of_string (UriManager.buri_of_uri uri^"/"^ - UriManager.name_of_uri uri ^ "___" ^ get_fresh () ^ ".con") - in + UriManager.name_of_uri uri ^ "___" ^ get_fresh () ^ ".con") in + let height = height_of_term fix - 1 in let bad_bctx, fixpoints_tys, tys, _ = List.fold_right (fun (name,recno,ty,_) (bctx, fixpoints, tys, idx) -> let ty, fixpoints_ty = aux true octx ctx n_fix uri ty in let r = (* recno is dummy here, must be lifted by the ctx len *) - reference_of_ouri buri (Ref.Fix (idx,recno,1)) + reference_of_ouri buri (Ref.Fix (idx,recno,height)) in bctx @ [Fix (lazy (r,name,ty))], fixpoints_ty@fixpoints,ty::tys,idx-1) @@ -496,20 +598,21 @@ let convert_term uri t = let rno_fixno = ref 0 in let fl, fixpoints,_ = List.fold_right2 - (fun (name,rno,_,bo) ty (l,fixpoints,idx) -> + (fun (name,rno,oty,bo) ty (l,fixpoints,idx) -> let bo, fixpoints_bo = aux false boctx bctx n_fl buri bo in let splty,fixpoints_splty = splat true ctx ty in let splbo,fixpoints_splbo = splat false ctx bo in let rno = rno + free_decls in if idx = fixno then rno_fixno := rno; - (([],name,rno,splty,splbo)::l), + ((get_relevance (osplat true octx oty),name,rno,splty,splbo)::l), fixpoints_bo@fixpoints_splty@fixpoints_splbo@fixpoints,idx+1) fl tys ([],fixpoints_tys,0) in let obj = - nuri_of_ouri buri,max_int,[],[], + nuri_of_ouri buri,height,[],[], NCic.Fixpoint (true, fl, (`Generated, `Definition)) in - let r = reference_of_ouri buri (Ref.Fix (fixno,!rno_fixno,1)) in +(*prerr_endline ("H(" ^ UriManager.string_of_uri buri ^ ") = " ^ string_of_int * height);*) + let r = reference_of_ouri buri (Ref.Fix (fixno,!rno_fixno,height)) in let obj,r = let _,name,_,_,_ = List.nth fl fixno in match find_in_cache name obj r with @@ -567,10 +670,11 @@ let convert_term uri t = let ty, fixpoints_ty = aux k octx ctx n_fix uri ty in NCic.LetIn ("cast", ty, t, NCic.Rel 1), fixpoints_t @ fixpoints_ty | Cic.Sort Cic.Prop -> NCic.Sort NCic.Prop,[] - | Cic.Sort Cic.CProp -> NCic.Sort NCic.CProp,[] + | Cic.Sort (Cic.CProp u) -> + NCic.Sort (NCic.Type (mk_cprop (CicUniv.get_rank u))),[] | Cic.Sort (Cic.Type u) -> - NCic.Sort (NCic.Type (CicUniv.get_rank u)),[] - | Cic.Sort Cic.Set -> NCic.Sort (NCic.Type 0),[] + NCic.Sort (NCic.Type (mk_type (CicUniv.get_rank u))),[] + | Cic.Sort Cic.Set -> NCic.Sort (NCic.Type (mk_type 0)),[] (* calculate depth in the univ_graph*) | Cic.Appl l -> let l, fixpoints = @@ -587,34 +691,39 @@ let convert_term uri t = aux_ens k curi octx ctx n_fix uri ens (match fst(CicEnvironment.get_obj CicUniv.oblivion_ugraph curi) with | Cic.Constant (_,Some _,_,_,_) -> - NCic.Const (reference_of_ouri curi (Ref.Def 1)) + NCic.Const (reference_of_ouri curi (Ref.Def (get_height curi))) | Cic.Constant (_,None,_,_,_) -> NCic.Const (reference_of_ouri curi Ref.Decl) | _ -> assert false) | Cic.MutInd (curi, tyno, ens) -> - let is_inductive = + let is_inductive, lno = match fst (CicEnvironment.get_obj CicUniv.oblivion_ugraph curi) with - Cic.InductiveDefinition ([],_,_,_) -> true - | Cic.InductiveDefinition ((_,b,_,_)::_,_,_,_) -> b + Cic.InductiveDefinition ([],vars,lno,_) -> true, lno + count_vars vars + | Cic.InductiveDefinition ((_,b,_,_)::_,vars,lno,_) -> b, lno + count_vars vars | _ -> assert false in aux_ens k curi octx ctx n_fix uri ens - (NCic.Const (reference_of_ouri curi (Ref.Ind (is_inductive,tyno)))) + (NCic.Const (reference_of_ouri curi (Ref.Ind (is_inductive,tyno,lno)))) | Cic.MutConstruct (curi, tyno, consno, ens) -> + let lno = + match fst (CicEnvironment.get_obj CicUniv.oblivion_ugraph curi) with + Cic.InductiveDefinition (_,vars,lno,_) -> lno + count_vars vars + | _ -> assert false + in aux_ens k curi octx ctx n_fix uri ens - (NCic.Const (reference_of_ouri curi (Ref.Con (tyno,consno)))) + (NCic.Const (reference_of_ouri curi (Ref.Con (tyno,consno,lno)))) | Cic.Var (curi, ens) -> (match fst (CicEnvironment.get_obj CicUniv.oblivion_ugraph curi) with Cic.Variable (_,Some bo,_,_,_) -> aux k octx ctx n_fix uri (CicSubstitution.subst_vars ens bo) | _ -> assert false) | Cic.MutCase (curi, tyno, outty, t, branches) -> - let is_inductive = + let is_inductive,lno = match fst (CicEnvironment.get_obj CicUniv.oblivion_ugraph curi) with - Cic.InductiveDefinition ([],_,_,_) -> true - | Cic.InductiveDefinition ((_,b,_,_)::_,_,_,_) -> b + Cic.InductiveDefinition ([],vars,lno,_) -> true, lno + count_vars vars + | Cic.InductiveDefinition ((_,b,_,_)::_,vars,lno,_) -> b, lno + count_vars vars | _ -> assert false in - let r = reference_of_ouri curi (Ref.Ind (is_inductive,tyno)) in + let r = reference_of_ouri curi (Ref.Ind (is_inductive,tyno,lno)) in let outty, fixpoints_outty = aux k octx ctx n_fix uri outty in let t, fixpoints_t = aux k octx ctx n_fix uri t in let branches, fixpoints = @@ -652,7 +761,12 @@ let convert_term uri t = match ens with [] -> he,objs | _::_ -> NCic.Appl (he::ens),objs - in +;; + +(* we are lambda-lifting also variables that do not occur *) +(* ctx does not distinguish successive blocks of cofix, since there may be no + * lambda separating them *) +let convert_term uri t = aux false [] [] 0 uri t ;; @@ -689,7 +803,7 @@ let convert_obj_aux uri = function let ty = cook `Pi vars ty in let nty, fixpoints = convert_term uri ty in assert(fixpoints = []); - NCic.Constant ([], name, None, nty, (`Provided,`Theorem,`Regular)), + NCic.Constant (get_relevance ty, name, None, nty, (`Provided,`Theorem,`Regular)), fixpoints | Cic.Constant (name, Some bo, ty, vars, _) -> let bo = cook `Lambda vars bo in @@ -697,7 +811,7 @@ let convert_obj_aux uri = function let nbo, fixpoints_bo = convert_term uri bo in let nty, fixpoints_ty = convert_term uri ty in assert(fixpoints_ty = []); - NCic.Constant ([], name, Some nbo, nty, (`Provided,`Theorem,`Regular)), + NCic.Constant (get_relevance ty, name, Some nbo, nty, (`Provided,`Theorem,`Regular)), fixpoints_bo @ fixpoints_ty | Cic.InductiveDefinition (itl,vars,leftno,_) -> let ind = let _,x,_,_ = List.hd itl in x in @@ -705,26 +819,19 @@ let convert_obj_aux uri = function List.fold_right (fun (name, _, ty, cl) (itl,acc) -> let ty = cook `Pi vars ty in - let ty, fix_ty = convert_term uri ty in + let nty, fix_ty = convert_term uri ty in let cl, fix_cl = List.fold_right (fun (name, ty) (cl,acc) -> let ty = cook `Pi vars ty in - let ty, fix_ty = convert_term uri ty in - ([], name, ty)::cl, acc @ fix_ty) + let nty, fix_ty = convert_term uri ty in + (get_relevance ty, name, nty)::cl, acc @ fix_ty) cl ([],[]) in - ([], name, ty, cl)::itl, fix_ty @ fix_cl @ acc) + (get_relevance ty, name, nty, cl)::itl, fix_ty @ fix_cl @ acc) itl ([],[]) in - NCic.Inductive(ind, leftno + List.length - (List.filter (fun v -> - match fst (CicEnvironment.get_obj CicUniv.oblivion_ugraph v) with - Cic.Variable (_,Some _,_,_,_) -> false - | Cic.Variable (_,None,_,_,_) -> true - | _ -> assert false) - vars) - , itl, (`Provided, `Regular)), + NCic.Inductive(ind, leftno + count_vars vars, itl, (`Provided, `Regular)), fix_itl | Cic.Variable _ | Cic.CurrentProof _ -> assert false @@ -733,6 +840,34 @@ let convert_obj_aux uri = function let convert_obj uri obj = reset_seed (); let o, fixpoints = convert_obj_aux uri obj in - let obj = nuri_of_ouri uri,max_int, [], [], o in + let obj = nuri_of_ouri uri,get_height uri, [], [], o in +(*prerr_endline ("H(" ^ UriManager.string_of_uri uri ^ ") = " ^ string_of_int * (get_height uri));*) fixpoints @ [obj] ;; + +let clear () = + Hashtbl.clear cache; + UriManager.UriHashtbl.clear cache1 +;; + +(* +let convert_context uri = + let name_of = function Cic.Name s -> s | _ -> "_" in + List.fold_right + (function + | (Some (s, Cic.Decl t) as e) -> fun (nc,auxc,oc) -> + let t, _ = aux true oc auxc 0 uri t in + (name_of s, NCic.Decl t) :: nc, + Ce (lazy ((name_of s, NCic.Decl t),[])) :: auxc, e :: oc + | (Some (Cic.Name s, Cic.Def (t,ty)) as e) -> fun (nc,auxc,oc) -> + let t, _ = aux true oc auxc 0 uri t in + let t, _ = aux true oc auxc 0 uri ty in + (name_of s, NCic.Def (t,ty)) :: nc, + Ce (lazy ((name_of s, NCic.Def (t,ty)),[])) :: auxc, e :: oc + | None -> nc, , e :: oc +;; + +let convert_term uri ctx t = + aux false [] [] 0 uri t +;; +*)