X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;ds=sidebyside;f=helm%2Fsoftware%2Fcomponents%2Fng_kernel%2FoCic2NCic.ml;h=6a9dd715a5bc6e79a9da108af9a9171e0083a39f;hb=123dd4468eb9725214db3acaa0af40a07e01e069;hp=4aaeb414c4d8330e70b6dc4cd3d224981b254f66;hpb=15f914ea52e7f3ec2bf00ec740d9a9935559b859;p=helm.git diff --git a/helm/software/components/ng_kernel/oCic2NCic.ml b/helm/software/components/ng_kernel/oCic2NCic.ml index 4aaeb414c..6a9dd715a 100644 --- a/helm/software/components/ng_kernel/oCic2NCic.ml +++ b/helm/software/components/ng_kernel/oCic2NCic.ml @@ -1,8 +1,37 @@ +(* + ||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_______________________________________________________________ *) + +(* $Id$ *) + module Ref = NReference +let nuri_of_ouri o = NUri.uri_of_string (UriManager.string_of_uri o);; + +(* porcatissima *) +type reference = Ref of NUri.uri * NReference.spec +let reference_of_ouri u indinfo = + let u = nuri_of_ouri u in + NReference.reference_of_string + (NReference.string_of_reference (Obj.magic (Ref (u,indinfo)))) +;; + type ctx = - | Ce of NCic.hypothesis * NCic.obj list - | Fix of Ref.reference * string * NCic.term + | Ce of (NCic.hypothesis * NCic.obj list) Lazy.t + | Fix of (Ref.reference * string * NCic.term) Lazy.t + +let strictify = + function + Ce l -> `Ce (Lazy.force l) + | Fix l -> `Fix (Lazy.force l) +;; (***** A function to restrict the context of a term getting rid of unsed variables *******) @@ -18,15 +47,15 @@ let restrict octx ctx ot = aux (m+1) acc (CicSubstitution.subst odummy ot) (NCicSubstitution.subst dummy t) (otl,tl) else - (match ohe,he with + (match ohe,strictify he with None,_ -> assert false - | Some (name,Cic.Decl oty),Ce ((name', NCic.Decl ty),objs) -> + | Some (name,Cic.Decl oty),`Ce ((name', NCic.Decl ty),objs) -> aux (m+1) ((m+1,objs,None)::acc) (Cic.Lambda (name,oty,ot)) (NCic.Lambda (name',ty,t)) (otl,tl) - | Some (name,Cic.Decl oty),Fix (ref,name',ty) -> + | Some (name,Cic.Decl oty),`Fix (ref,name',ty) -> aux (m+1) ((m+1,[],Some ref)::acc) (Cic.Lambda (name,oty,ot)) (NCic.Lambda (name',ty,t)) (otl,tl) - | Some (name,Cic.Def (obo,oty)),Ce ((name', NCic.Def (bo,ty)),objs) -> + | Some (name,Cic.Def (obo,oty)),`Ce ((name', NCic.Def (bo,ty)),objs) -> aux (m+1) ((m+1,objs,None)::acc) (Cic.LetIn (name,obo,oty,ot)) (NCic.LetIn (name',bo,ty,t)) (otl,tl) | _,_ -> assert false) @@ -36,13 +65,13 @@ let restrict octx ctx ot = ([], _, _) -> octx,ctx,ote | ((_,objs,None)::tl, Cic.Lambda(name,oso,ota), NCic.Lambda(name',so,ta)) -> split_lambdas_and_letins ((Some(name,(Cic.Decl oso)))::octx) - (Ce ((name',NCic.Decl so),objs)::ctx) tl (ota,ta) + (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)) -> split_lambdas_and_letins ((Some(name,(Cic.Decl oso)))::octx) - (Fix (r,name',so)::ctx) tl (ota,ta) + (Fix (lazy (r,name',so))::ctx) tl (ota,ta) | ((_,objs,None)::tl,Cic.LetIn(name,obo,oty,ota),NCic.LetIn(nam',bo,ty,ta))-> split_lambdas_and_letins ((Some (name,(Cic.Def (obo,oty))))::octx) - (Ce ((nam',NCic.Def (bo,ty)),objs)::ctx) tl (ota,ta) + (Ce (lazy ((nam',NCic.Def (bo,ty)),objs))::ctx) tl (ota,ta) | (_, _, _) -> assert false in let long_t,infos = aux 0 [] ot dummy (octx,ctx) in @@ -65,12 +94,12 @@ let cn_to_s = function let splat mk_pi ctx t = List.fold_left (fun (t,l) c -> - match c with - | Ce ((name, NCic.Def (bo,ty)),l') -> NCic.LetIn (name, ty, bo, t),l@l' - | Ce ((name, NCic.Decl ty),l') when mk_pi -> NCic.Prod (name, ty, t),l@l' - | Ce ((name, NCic.Decl ty),l') -> NCic.Lambda (name, ty, t),l@l' - | Fix (_,name,ty) when mk_pi -> NCic.Prod (name, ty, t),l - | Fix (_,name,ty) -> NCic.Lambda (name,ty,t),l) + match strictify c with + | `Ce ((name, NCic.Def (bo,ty)),l') -> NCic.LetIn (name, ty, bo, t),l@l' + | `Ce ((name, NCic.Decl ty),l') when mk_pi -> NCic.Prod (name, ty, t),l@l' + | `Ce ((name, NCic.Decl ty),l') -> NCic.Lambda (name, ty, t),l@l' + | `Fix (_,name,ty) when mk_pi -> NCic.Prod (name, ty, t),l + | `Fix (_,name,ty) -> NCic.Lambda (name,ty,t),l) (t,[]) ctx ;; @@ -79,11 +108,16 @@ let context_tassonomy ctx = | Ce _ :: tl when inner -> split inner (acc+1) (acc1+1) tl | Fix _ ::tl -> split false acc (acc1+1) tl | _ as l -> - let only_decl = + let only_decl () = List.filter - (function Ce ((_, NCic.Decl _),_) | Fix _ -> true | _ -> false) l + (function + Ce _ as ce -> + (match strictify ce with + `Ce ((_, NCic.Decl _),_) -> true + | _ -> false) + | Fix _ -> true) l in - acc, List.length l, List.length only_decl, acc1 + acc, List.length l, lazy (List.length (only_decl ())), acc1 in split true 0 1 ctx ;; @@ -102,14 +136,18 @@ let splat_args_for_rel ctx t ?rels n_fix = let rec aux = function | n,_ when n = bound + n_fix -> [] | n,he::tl -> - (match List.nth ctx (n-1) with - | Fix (refe, _, _) when n < primo_ce_dopo_fix -> + (match strictify (List.nth ctx (n-1)) with + | `Fix (refe, _, _) when n < primo_ce_dopo_fix -> NCic.Const refe :: aux (n-1,tl) - | Fix _ | Ce ((_, NCic.Decl _),_)-> NCic.Rel (he - n_fix)::aux(n-1,tl) - | Ce ((_, NCic.Def _),_) -> aux (n-1,tl)) + | `Fix _ | `Ce ((_, NCic.Decl _),_) -> + NCic.Rel (he - n_fix)::aux(n-1,tl) + | `Ce ((_, NCic.Def _),_) -> aux (n-1,tl)) | _,_ -> assert false in - NCic.Appl (t:: aux (List.length ctx,rels)) + let args = aux (List.length ctx,rels) in + match args with + [] -> t + | _::_ -> NCic.Appl (t::args) ;; let splat_args ctx t n_fix rels = @@ -119,16 +157,20 @@ let splat_args ctx t n_fix rels = let rec aux = function | 0,[] -> [] | n,he::tl -> - (match List.nth ctx (n-1) with - | Ce ((_, NCic.Decl _),_) when n <= bound -> NCic.Rel he:: aux (n-1,tl) - | Fix (refe, _, _) when n < primo_ce_dopo_fix -> + (match strictify (List.nth ctx (n-1)) with + | `Ce ((_, NCic.Decl _),_) when n <= bound -> + NCic.Rel he:: aux (n-1,tl) + | `Fix (refe, _, _) when n < primo_ce_dopo_fix -> splat_args_for_rel ctx (NCic.Const refe) ~rels n_fix :: aux (n-1,tl) - | Fix _ | Ce ((_, NCic.Decl _),_) -> NCic.Rel (he - n_fix)::aux(n-1,tl) - | Ce ((_, NCic.Def _),_) -> aux (n - 1,tl) + | `Fix _ | `Ce((_, NCic.Decl _),_)-> NCic.Rel (he - n_fix)::aux(n-1,tl) + | `Ce ((_, NCic.Def _),_) -> aux (n - 1,tl) ) | _,_ -> assert false in - NCic.Appl (t:: aux ((List.length ctx,rels))) + let args = aux (List.length ctx,rels) in + match args with + [] -> t + | _::_ -> NCic.Appl (t::args) ;; exception Nothing_to_do;; @@ -281,8 +323,12 @@ let alpha t1 t2 ref ref' = | NCic.Prod (_,s1,t1), NCic.Prod (_,s2,t2) -> aux s1 s2; aux t1 t2 | NCic.LetIn (_,s1,ty1,t1), NCic.LetIn (_,s2,ty2,t2) -> aux s1 s2; aux ty1 ty2; aux t1 t2 - | NCic.Const r1, - NCic.Const r2 when NReference.eq r1 ref && NReference.eq r2 ref' -> () + | NCic.Const (NReference.Ref (uu1,xp1)), + NCic.Const (NReference.Ref (uu2,xp2)) when + let NReference.Ref (u1,_) = ref in + let NReference.Ref (u2,_) = ref' in + NUri.eq uu1 u1 && NUri.eq uu2 u2 && xp1 = xp2 + -> () | NCic.Const r1, NCic.Const r2 when NReference.eq r1 r2 -> () | NCic.Meta _,NCic.Meta _ -> () | NCic.Implicit _,NCic.Implicit _ -> () @@ -298,9 +344,9 @@ exception Found of NReference.reference;; let cache = Hashtbl.create 313;; let same_obj ref ref' = function - | (_,_,_,_,NCic.Fixpoint (_,l1,_)), (_,_,_,_,NCic.Fixpoint (_,l2,_)) + | (_,_,_,_,NCic.Fixpoint (b1,l1,_)), (_,_,_,_,NCic.Fixpoint (b2,l2,_)) when List.for_all2 (fun (_,_,_,ty1,bo1) (_,_,_,ty2,bo2) -> - alpha ty1 ty2 ref ref' && alpha bo1 bo2 ref ref') l1 l2 -> + alpha ty1 ty2 ref ref' && alpha bo1 bo2 ref ref') l1 l2 && b1=b2-> true | _ -> false ;; @@ -310,34 +356,42 @@ let find_in_cache name obj ref = (function (ref',obj') -> let recno, fixno = match ref with - NReference.Ref (_,_,NReference.Fix (fixno,recno)) -> recno,fixno + NReference.Ref (_,NReference.Fix (fixno,recno,_)) -> recno,fixno + | NReference.Ref (_,NReference.CoFix (fixno)) -> ~-1,fixno | _ -> assert false in let recno',fixno' = match ref' with - NReference.Ref (_,_,NReference.Fix (fixno',recno)) -> recno,fixno' + NReference.Ref (_,NReference.Fix (fixno',recno,_)) -> recno,fixno' + | NReference.Ref (_,NReference.CoFix (fixno')) -> ~-1,fixno' | _ -> assert false in if recno = recno' && fixno = fixno' && same_obj ref ref' (obj,obj') then ( (* prerr_endline ("!!!!!!!!!!! CACHE HIT !!!!!!!!!!\n" ^ NReference.string_of_reference ref ^ "\n" ^ NReference.string_of_reference ref' ^ "\n"); -*) + *) raise (Found ref')); - (* prerr_endline ("CACHE SAME NAME: " ^ NReference.string_of_reference ref ^ " <==> " ^ NReference.string_of_reference ref'); -*) - + *) ) (Hashtbl.find_all cache name); -(* prerr_endline "<<< CACHE MISS >>>"; *) +(* prerr_endline "<<< CACHE MISS >>>"; *) begin match obj, ref with - | (_,_,_,_,NCic.Fixpoint (true,fl,_)) , NReference.Ref (x,y,NReference.Fix _) -> + | (_,_,_,_,NCic.Fixpoint (true,fl,_)) , + NReference.Ref (y,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,_,_) -> + let ref = NReference.mk_cofix i ref in + Hashtbl.add cache name (ref,obj); + i+1 + ) 0 fl) | _ -> assert false end; None @@ -368,8 +422,9 @@ let convert_term uri t = List.fold_right (fun (name,ty,_) (bctx, fixpoints, tys, idx) -> let ty, fixpoints_ty = aux true octx ctx n_fix uri ty in - let r = Ref.reference_of_ouri buri(Ref.CoFix idx) in - bctx @ [Fix (r,name,ty)], fixpoints_ty @ fixpoints,ty::tys,idx-1) + let r = reference_of_ouri buri(Ref.CoFix idx) in + bctx @ [Fix (lazy (r,name,ty))], + fixpoints_ty @ fixpoints,ty::tys,idx-1) fl ([], [], [], List.length fl-1) in let bctx = bctx @ ctx in @@ -391,13 +446,17 @@ let convert_term uri t = fl tys ([],fixpoints_tys) in let obj = - NUri.nuri_of_ouri buri,0,[],[], + nuri_of_ouri buri,0,[],[], NCic.Fixpoint (false, fl, (`Generated, `Definition)) in - splat_args ctx - (NCic.Const (Ref.reference_of_ouri buri (Ref.CoFix cofixno))) - n_fix rels, - fixpoints @ [obj] + let r = reference_of_ouri buri (Ref.CoFix cofixno) in + let obj,r = + let _,name,_,_,_ = List.nth fl cofixno in + match find_in_cache name obj r with + Some r' -> [],r' + | None -> [obj],r + in + splat_args ctx (NCic.Const r) n_fix rels, fixpoints @ obj | Cic.Fix _ as fix -> let octx,ctx,fix,rels = restrict octx ctx fix in let fixno,fl = @@ -412,17 +471,19 @@ let convert_term uri t = (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 *) - Ref.reference_of_ouri buri (Ref.Fix (idx,recno)) + reference_of_ouri buri (Ref.Fix (idx,recno,1)) in - bctx @ [Fix (r,name,ty)], fixpoints_ty@fixpoints,ty::tys,idx-1) + bctx @ [Fix (lazy (r,name,ty))], + fixpoints_ty@fixpoints,ty::tys,idx-1) fl ([], [], [], List.length fl-1) in let _, _, free_decls, _ = context_tassonomy (bad_bctx @ ctx) in + let free_decls = Lazy.force free_decls in let bctx = - List.map (function - | Fix (Ref.Ref (_,_,Ref.Fix (idx, recno)),name, ty) -> - Fix (Ref.reference_of_ouri buri - (Ref.Fix (idx,recno+free_decls)),name,ty) + List.map (function ce -> match strictify ce with + | `Fix (Ref.Ref (_,Ref.Fix (idx, recno,height)),name, ty) -> + Fix (lazy (reference_of_ouri buri + (Ref.Fix (idx,recno+free_decls,height)),name,ty)) | _ -> assert false) bad_bctx @ ctx in let n_fl = List.length fl in @@ -446,9 +507,9 @@ let convert_term uri t = fl tys ([],fixpoints_tys,0) in let obj = - NUri.nuri_of_ouri buri,max_int,[],[], + nuri_of_ouri buri,max_int,[],[], NCic.Fixpoint (true, fl, (`Generated, `Definition)) in - let r = Ref.reference_of_ouri buri (Ref.Fix (fixno,!rno_fixno)) in + let r = reference_of_ouri buri (Ref.Fix (fixno,!rno_fixno,1)) in let obj,r = let _,name,_,_,_ = List.nth fl fixno in match find_in_cache name obj r with @@ -459,7 +520,8 @@ let convert_term uri t = | Cic.Rel n -> let bound, _, _, primo_ce_dopo_fix = context_tassonomy ctx in (match List.nth ctx (n-1) with - | Fix (r,_,_) when n < primo_ce_dopo_fix -> + | Fix l when n < primo_ce_dopo_fix -> + let r,_,_ = Lazy.force l in splat_args_for_rel ctx (NCic.Const r) n_fix, [] | Ce _ when n <= bound -> NCic.Rel n, [] | Fix _ when n <= bound -> assert false @@ -467,25 +529,35 @@ let convert_term uri t = | Fix _ | Ce _ -> NCic.Rel (n-n_fix), []) | Cic.Lambda (name, (s as old_s), t) -> let s, fixpoints_s = aux k octx ctx n_fix uri s in - let s', fixpoints_s' = aux true octx ctx n_fix uri old_s in - let ctx = Ce ((cn_to_s name, NCic.Decl s'),fixpoints_s') :: ctx in + let s'_and_fixpoints_s' = lazy (aux true octx ctx n_fix uri old_s) in + let ctx = + Ce (lazy + let s',fixpoints_s' = Lazy.force s'_and_fixpoints_s' in + ((cn_to_s name, NCic.Decl s'),fixpoints_s'))::ctx in let octx = Some (name, Cic.Decl old_s) :: octx in let t, fixpoints_t = aux k octx ctx n_fix uri t in NCic.Lambda (cn_to_s name, s, t), fixpoints_s @ fixpoints_t | Cic.Prod (name, (s as old_s), t) -> let s, fixpoints_s = aux k octx ctx n_fix uri s in - let s', fixpoints_s' = aux true octx ctx n_fix uri old_s in - let ctx = Ce ((cn_to_s name, NCic.Decl s'),fixpoints_s') :: ctx in + let s'_and_fixpoints_s' = lazy (aux true octx ctx n_fix uri old_s) in + let ctx = + Ce (lazy + let s',fixpoints_s' = Lazy.force s'_and_fixpoints_s' in + ((cn_to_s name, NCic.Decl s'),fixpoints_s'))::ctx in let octx = Some (name, Cic.Decl old_s) :: octx in let t, fixpoints_t = aux k octx ctx n_fix uri t in NCic.Prod (cn_to_s name, s, t), fixpoints_s @ fixpoints_t | Cic.LetIn (name, (te as old_te), (ty as old_ty), t) -> let te, fixpoints_s = aux k octx ctx n_fix uri te in - let te', fixpoints_s' = aux true octx ctx n_fix uri old_te in + let te_and_fixpoints_s' = lazy (aux true octx ctx n_fix uri old_te) in let ty, fixpoints_ty = aux k octx ctx n_fix uri ty in - let ty', fixpoints_ty' = aux true octx ctx n_fix uri old_ty in - let fixpoints' = fixpoints_s' @ fixpoints_ty' in - let ctx = Ce ((cn_to_s name, NCic.Def (te', ty')),fixpoints') :: ctx in + let ty_and_fixpoints_ty' = lazy (aux true octx ctx n_fix uri old_ty) in + let ctx = + Ce (lazy + let te',fixpoints_s' = Lazy.force te_and_fixpoints_s' in + let ty',fixpoints_ty' = Lazy.force ty_and_fixpoints_ty' in + let fixpoints' = fixpoints_s' @ fixpoints_ty' in + ((cn_to_s name, NCic.Def (te', ty')),fixpoints'))::ctx in let octx = Some (name, Cic.Def (old_te, old_ty)) :: octx in let t, fixpoints_t = aux k octx ctx n_fix uri t in NCic.LetIn (cn_to_s name, ty, te, t), @@ -515,23 +587,34 @@ 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 (Ref.reference_of_ouri curi Ref.Def) + NCic.Const (reference_of_ouri curi (Ref.Def 1)) | Cic.Constant (_,None,_,_,_) -> - NCic.Const (Ref.reference_of_ouri curi Ref.Decl) + NCic.Const (reference_of_ouri curi Ref.Decl) | _ -> assert false) | Cic.MutInd (curi, tyno, ens) -> - aux_ens k curi octx ctx n_fix uri ens - (NCic.Const (Ref.reference_of_ouri curi (Ref.Ind tyno))) + let is_inductive = + match fst (CicEnvironment.get_obj CicUniv.oblivion_ugraph curi) with + Cic.InductiveDefinition ([],_,_,_) -> true + | Cic.InductiveDefinition ((_,b,_,_)::_,_,_,_) -> b + | _ -> assert false + in + aux_ens k curi octx ctx n_fix uri ens + (NCic.Const (reference_of_ouri curi (Ref.Ind (is_inductive,tyno)))) | Cic.MutConstruct (curi, tyno, consno, ens) -> aux_ens k curi octx ctx n_fix uri ens - (NCic.Const (Ref.reference_of_ouri curi (Ref.Con (tyno,consno)))) + (NCic.Const (reference_of_ouri curi (Ref.Con (tyno,consno)))) | 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 r = Ref.reference_of_ouri curi (Ref.Ind tyno) in + let is_inductive = + match fst (CicEnvironment.get_obj CicUniv.oblivion_ugraph curi) with + Cic.InductiveDefinition ([],_,_,_) -> true + | Cic.InductiveDefinition ((_,b,_,_)::_,_,_,_) -> b + | _ -> assert false in + let r = reference_of_ouri curi (Ref.Ind (is_inductive,tyno)) 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 = @@ -566,7 +649,9 @@ let convert_term uri t = | _ -> assert false ) params ([],[]) in - NCic.Appl (he::ens),objs + match ens with + [] -> he,objs + | _::_ -> NCic.Appl (he::ens),objs in aux false [] [] 0 uri t ;; @@ -648,6 +733,6 @@ 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.nuri_of_ouri uri,max_int, [], [], o in + let obj = nuri_of_ouri uri,max_int, [], [], o in fixpoints @ [obj] ;;