1 (* Copyright (C) 2000, HELM Team.
3 * This file is part of HELM, an Hypertextual, Electronic
4 * Library of Mathematics, developed at the Computer Science
5 * Department, University of Bologna, Italy.
7 * HELM is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * as published by the Free Software Foundation; either version 2
10 * of the License, or (at your option) any later version.
12 * HELM is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with HELM; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
22 * For details, see the HELM World-Wide-Web page,
23 * http://cs.unibo.it/helm/.
26 (* $Id: cicPp.ml 7413 2007-05-29 15:30:53Z tassi $ *)
29 let apply_subst subst t = assert (subst=[]); t;;
31 type typformerreference = NReference.reference
32 type reference = NReference.reference
36 | KArrow of kind * kind
37 | KSkip of kind (* dropped abstraction *)
43 | TConst of typformerreference
46 | Forall of string * kind * typ
53 | Lambda of string * (* typ **) term
55 | LetIn of string * (* typ **) term * term
56 | Match of reference * term * term list
57 | TLambda of (* string **) term
58 | Inst of (*typ_former **) term
61 NCic.Const (NReference.reference_of_spec (NUri.uri_of_string "cic:/matita/basics/types/unit.ind") (NReference.Ind (true,0,0)));;
63 (* None = dropped abstraction *)
64 type typ_context = (string * kind) option list
65 type term_context = (string * [`OfKind of kind | `OfType of typ]) option list
67 type typ_former_decl = typ_context * kind
68 type typ_former_def = typ_former_decl * typ
70 type term_former_decl = term_context * typ
71 type term_former_def = term_former_decl * term
74 TypeDeclaration of typ_former_decl
75 | TypeDefinition of typ_former_def
76 | TermDeclaration of term_former_decl
77 | TermDefinition of term_former_def
78 | LetRec of obj_kind list
79 | Algebraic of (string * typ_context * (string * typ list) list) list
81 type obj = NUri.uri * obj_kind
85 let rec classify_not_term status no_dep_prods context t =
86 match NCicReduction.whd status ~subst:[] context t with
90 | NCic.Type [`CProp,_] -> `PropKind
91 | NCic.Type [`Type,_] ->
92 if no_dep_prods then `Kind
94 raise NotInFOmega (* ?? *)
95 | NCic.Type _ -> assert false)
96 | NCic.Prod (b,s,t) ->
97 (*CSC: using invariant on "_" *)
98 classify_not_term status (no_dep_prods && b.[0] = '_')
99 ((b,NCic.Decl s)::context) t
103 | NCic.Const (NReference.Ref (_,NReference.CoFix _))
104 | NCic.Appl [] -> assert false (* NOT POSSIBLE *)
106 | NCic.Const (NReference.Ref (_,NReference.Fix _)) ->
107 (* be aware: we can be the head of an application *)
108 assert false (* TODO *)
109 | NCic.Meta _ -> assert false (* TODO *)
110 | NCic.Appl (he::_) -> classify_not_term status no_dep_prods context he
112 let rec find_sort typ =
113 match NCicReduction.whd status ~subst:[] context (NCicSubstitution.lift status n typ) with
114 NCic.Sort NCic.Prop -> `Proposition
115 | NCic.Sort (NCic.Type [`CProp,_]) -> `Proposition
116 | NCic.Sort (NCic.Type [`Type,_]) ->
117 (*CSC: we could be more precise distinguishing the user provided
118 minimal elements of the hierarchies and classify these
121 | NCic.Sort (NCic.Type _) -> assert false (* ALGEBRAIC *)
122 | NCic.Prod (_,_,t) ->
123 (* we skipped arguments of applications, so here we need to skip
126 | _ -> assert false (* NOT A SORT *)
128 (match List.nth context (n-1) with
129 _,NCic.Decl typ -> find_sort typ
130 | _,NCic.Def _ -> assert false (* IMPOSSIBLE *))
131 | NCic.Const (NReference.Ref (_,NReference.Decl) as ref) ->
132 let _,_,ty,_,_ = NCicEnvironment.get_checked_decl status ref in
133 (match classify_not_term status true [] ty with
135 | `Type -> assert false (* IMPOSSIBLE *)
137 | `KindOrType -> `Type
138 | `PropKind -> `Proposition)
139 | NCic.Const (NReference.Ref (_,NReference.Ind _) as ref) ->
140 let _,_,ityl,_,i = NCicEnvironment.get_checked_indtys status ref in
141 let _,_,arity,_ = List.nth ityl i in
142 (match classify_not_term status true [] arity with
145 | `KindOrType -> assert false (* IMPOSSIBLE *)
147 | `PropKind -> `Proposition)
148 | NCic.Const (NReference.Ref (_,NReference.Con _))
149 | NCic.Const (NReference.Ref (_,NReference.Def _)) ->
150 assert false (* IMPOSSIBLE *)
153 type not_term = [`Kind | `KindOrType | `PropKind | `Proposition | `Type];;
155 let classify status ~metasenv context t =
156 match NCicTypeChecker.typeof status ~metasenv ~subst:[] context t with
158 (classify_not_term status true context t : not_term :> [> not_term])
160 let ty = fix_sorts ty in
162 (match classify_not_term status true context ty with
163 | `Proposition -> `Proof
165 | `KindOrType -> `TypeFormerOrTerm
166 | `Kind -> `TypeFormer
167 | `PropKind -> `PropFormer)
171 let rec kind_of status ~metasenv context k =
172 match NCicReduction.whd status ~subst:[] context k with
173 | NCic.Sort NCic.Type _ -> Type
174 | NCic.Sort _ -> assert false (* NOT A KIND *)
175 | NCic.Prod (b,s,t) ->
176 (* CSC: non-invariant assumed here about "_" *)
177 (match classify status ~metasenv context s with
179 | `KindOrType -> (* KindOrType OK?? *)
180 KArrow (kind_of status ~metasenv context s,
181 kind_of ~metasenv status ((b,NCic.Decl s)::context) t)
185 KSkip (kind_of status ~metasenv ((b,NCic.Decl s)::context) t)
186 | `Term _ -> assert false (* IMPOSSIBLE *))
188 | NCic.LetIn _ -> assert false (* IMPOSSIBLE *)
191 | NCic.Const _ -> assert false (* NOT A KIND *)
192 | NCic.Appl _ -> assert false (* TODO: when head is a match/let rec;
193 otherwise NOT A KIND *)
195 | NCic.Match (_,_,_,_) -> assert false (* TODO *)
198 let rec skip_args status ~metasenv context =
201 | [],_ -> assert false (* IMPOSSIBLE *)
202 | None::tl1,_::tl2 -> skip_args status ~metasenv context (tl1,tl2)
204 match classify status ~metasenv context arg with
207 | `Term `TypeFormer ->
208 Some arg::skip_args status ~metasenv context (tl1,tl2)
211 | `PropKind -> None::skip_args status ~metasenv context (tl1,tl2)
212 | `Term _ -> assert false (* IMPOSSIBLE *)
215 module ReferenceMap = Map.Make(struct type t = NReference.reference let compare = NReference.compare end)
217 type db = (typ_context * typ option) ReferenceMap.t
219 class type g_status =
221 method extraction_db: db
224 class virtual status =
227 val extraction_db = ReferenceMap.empty
228 method extraction_db = extraction_db
229 method set_extraction_db v = {< extraction_db = v >}
230 method set_extraction_status
231 : 'status. #g_status as 'status -> 'self
232 = fun o -> {< extraction_db = o#extraction_db >}
235 let rec split_kind_prods context =
237 | KArrow (so,ta)-> split_kind_prods (Some ("_",so)::context) ta
238 | KSkip ta -> split_kind_prods (None::context) ta
239 | Type -> context,Type
242 let rec split_typ_prods context =
244 | Arrow (so,ta)-> split_typ_prods (Some ("_",`OfType so)::context) ta
245 | Forall (name,so,ta)-> split_typ_prods (Some (name,`OfKind so)::context) ta
246 | Skip ta -> split_typ_prods (None::context) ta
247 | _ as t -> context,t
250 let rec glue_ctx_typ ctx typ =
253 | Some (_,`OfType so)::ctx -> glue_ctx_typ ctx (Arrow (so,typ))
254 | Some (name,`OfKind so)::ctx -> glue_ctx_typ ctx (Forall (name,so,typ))
255 | None::ctx -> glue_ctx_typ ctx (Skip typ)
258 let rec split_typ_lambdas status n ~metasenv context typ =
259 if n = 0 then context,typ
261 match NCicReduction.whd status ~delta:max_int ~subst:[] context typ with
262 | NCic.Lambda (name,s,t) ->
263 split_typ_lambdas status (n-1) ~metasenv ((name,NCic.Decl s)::context) t
265 (* eta-expansion required *)
266 let ty = NCicTypeChecker.typeof status ~metasenv ~subst:[] context t in
267 match NCicReduction.whd status ~delta:max_int ~subst:[] context ty with
268 | NCic.Prod (name,typ,_) ->
269 split_typ_lambdas status (n-1) ~metasenv
270 ((name,NCic.Decl typ)::context)
271 (NCicUntrusted.mk_appl t [NCic.Rel 1])
272 | _ -> assert false (* IMPOSSIBLE *)
276 let context_of_typformer status ~metasenv context =
278 NCic.Const (NReference.Ref (_,NReference.Ind _) as ref)
279 | NCic.Const (NReference.Ref (_,NReference.Def _) as ref)
280 | NCic.Const (NReference.Ref (_,NReference.Decl) as ref)
281 | NCic.Const (NReference.Ref (_,NReference.Fix _) as ref) ->
282 (try fst (ReferenceMap.find ref status#extraction_db)
284 Not_found -> assert false (* IMPOSSIBLE *))
285 | NCic.Match _ -> assert false (* TODO ???? *)
288 match List.nth context (n-1) with
289 _,NCic.Decl typ -> typ
290 | _,NCic.Def _ -> assert false (* IMPOSSIBLE *) in
291 let typ_ctx = snd (HExtlib.split_nth n context) in
292 let typ = kind_of status ~metasenv typ_ctx typ in
293 fst (split_kind_prods [] typ)
294 | NCic.Meta _ -> assert false (* TODO *)
295 | NCic.Const (NReference.Ref (_,NReference.Con _))
296 | NCic.Const (NReference.Ref (_,NReference.CoFix _))
297 | NCic.Sort _ | NCic.Implicit _ | NCic.Lambda _ | NCic.LetIn _
298 | NCic.Appl _ | NCic.Prod _ ->
299 assert false (* IMPOSSIBLE *)
301 let rec typ_of status ~metasenv context k =
302 match NCicReduction.whd status ~delta:max_int ~subst:[] context k with
303 | NCic.Prod (b,s,t) ->
304 (* CSC: non-invariant assumed here about "_" *)
305 (match classify status ~metasenv context s with
307 Forall (b, kind_of status ~metasenv context s,
308 typ_of ~metasenv status ((b,NCic.Decl s)::context) t)
310 | `KindOrType -> (* ??? *)
311 Arrow (typ_of status ~metasenv context s,
312 typ_of status ~metasenv ((b,NCic.Decl s)::context) t)
315 Skip (typ_of status ~metasenv ((b,NCic.Decl s)::context) t)
316 | `Term _ -> assert false (* IMPOSSIBLE *))
319 | NCic.LetIn _ -> assert false (* IMPOSSIBLE *)
320 | NCic.Lambda _ -> assert false (* NOT A TYPE *)
321 | NCic.Rel n -> Var n
322 | NCic.Const ref -> TConst ref
323 | NCic.Appl (he::args) ->
324 let he_context = context_of_typformer status ~metasenv context he in
325 TAppl (typ_of status ~metasenv context he ::
327 (function None -> Unit | Some ty -> typ_of status ~metasenv context ty)
328 (skip_args status ~metasenv context (List.rev he_context,args)))
329 | NCic.Appl _ -> assert false (* TODO: when head is a match/let rec;
330 otherwise NOT A TYPE *)
332 | NCic.Match (_,_,_,_) -> assert false (* TODO *)
335 let rec fomega_subst k t1 =
339 else if n < k then Var n
342 | TConst ref -> TConst ref
344 | Arrow (ty1,ty2) -> Arrow (fomega_subst k t1 ty1, fomega_subst (k+1) t1 ty2)
345 | Skip t -> Skip (fomega_subst (k+1) t1 t)
346 | Forall (n,kind,t) -> Forall (n,kind,fomega_subst (k+1) t1 t)
347 | TAppl args -> TAppl (List.map (fomega_subst k t1) args)
349 let fomega_lookup status ref = snd (ReferenceMap.find ref status#extraction_db)
351 let rec fomega_whd status ty =
354 (match fomega_lookup status r with
356 | Some ty -> fomega_whd status ty)
357 | TAppl (TConst r::args) ->
358 (match fomega_lookup status r with
360 | Some ty -> fomega_whd status (List.fold_right (fomega_subst 1) args ty))
363 let rec term_of status ~metasenv context =
367 | NCic.Prod _ -> assert false (* IMPOSSIBLE *)
368 | NCic.Lambda (b,ty,bo) ->
369 (* CSC: non-invariant assumed here about "_" *)
370 (match classify status ~metasenv context ty with
372 TLambda (term_of status ~metasenv ((b,NCic.Decl ty)::context) bo)
373 | `KindOrType (* ??? *)
375 Lambda (b, term_of status ~metasenv ((b,NCic.Decl ty)::context) bo)
379 term_of status ~metasenv ((b,NCic.Decl ty)::context) bo
380 | `Term _ -> assert false (* IMPOSSIBLE *))
381 | NCic.LetIn (b,ty,t,bo) ->
382 (match classify status ~metasenv context t with
383 | `Term `TypeFormerOrTerm (* ???? *)
385 LetIn (b,term_of status ~metasenv context t,
386 term_of status ~metasenv ((b,NCic.Def (t,ty))::context) bo)
395 (* not in programming languages, we expand it *)
396 term_of status ~metasenv context
397 (NCicSubstitution.subst status ~avoid_beta_redexes:true t bo))
398 | NCic.Rel n -> Rel n
399 | NCic.Const ref -> Const ref
400 | NCic.Appl (he::args) ->
401 eat_args status metasenv
402 (term_of status ~metasenv context he) context
403 (typ_of status ~metasenv context
404 (NCicTypeChecker.typeof status ~metasenv ~subst:[] context he))
407 let he_context = context_of_typformer status ~metasenv context he in
408 let process_args he =
411 | `Inst tl -> Inst (process_args he tl)
412 | `Appl (arg,tl) -> process_args (Appl (he,... arg)) tl
414 Appl (typ_of status ~metasenv context he ::
415 process_args (typ_of status ~metasenv context he)
416 (skip_term_args status ~metasenv context (List.rev he_context,args))
418 | NCic.Appl _ -> assert false (* TODO: when head is a match/let rec;
419 otherwise NOT A TYPE *)
420 | NCic.Meta _ -> assert false (* TODO *)
421 | NCic.Match (ref,_,t,pl) ->
422 Match (ref,term_of status ~metasenv context t,
423 List.map (term_of status ~metasenv context) pl)
424 and eat_args status metasenv acc context tyhe =
430 Appl args -> Appl (args@[x])
433 match fomega_whd status tyhe with
438 | _ -> term_of status ~metasenv context arg in
439 eat_args status metasenv (mk_appl acc arg) context t tl
441 eat_args status metasenv (Inst acc)
442 context (fomega_subst 1 (typ_of status ~metasenv context arg) t) tl
444 eat_args status metasenv acc context t tl
445 | Top -> assert false (*TODO: HOW??*)
446 | Unit | Var _ | TConst _ | TAppl _ -> assert false (* NOT A PRODUCT *)
449 let obj_of_constant status ~metasenv uri height bo ty =
450 match classify status ~metasenv [] ty with
452 let ty = kind_of status ~metasenv [] ty in
453 let ctx0,res = split_kind_prods [] ty in
455 split_typ_lambdas status ~metasenv (List.length ctx0) [] bo in
456 (match classify status ~metasenv ctx bo with
458 | `KindOrType -> (* ?? no kind formers in System F_omega *)
462 HExtlib.map_option (fun (_,k) ->
463 (*CSC: BUG here, clashes*)
464 String.uncapitalize (fst n),k) p1)
467 (* BUG here: for mutual type definitions the spec is not good *)
469 NReference.reference_of_spec uri (NReference.Def height) in
470 let bo = typ_of status ~metasenv ctx bo in
471 status#set_extraction_db
472 (ReferenceMap.add ref (nicectx,Some bo)
473 status#extraction_db),
474 Some (uri,TypeDefinition((nicectx,res),bo))
475 | `Kind -> status, None
477 | `Proposition -> status, None
478 | `Term _ -> assert false (* IMPOSSIBLE *))
480 | `Proposition -> status, None
481 | `KindOrType (* ??? *)
483 (* CSC: TO BE FINISHED, REF NON REGISTERED *)
484 let ty = typ_of status ~metasenv [] ty in
486 Some (uri, TermDefinition (split_typ_prods [] ty,
487 term_of status ~metasenv [] bo))
488 | `Term _ -> assert false (* IMPOSSIBLE *)
491 let obj_of_inductive status ~metasenv uri ind leftno il =
494 (fun _,name,arity,cl ->
495 match classify_not_term status true [] arity with
498 | `Type -> assert false (* IMPOSSIBLE *)
501 let arity = kind_of status ~metasenv [] arity in
502 let ctx,_ as res = split_kind_prods [] arity in
508 | _ -> status, Some (uri, Algebraic tyl)
511 let obj_of status (uri,height,metasenv,subst,obj_kind) =
512 let obj_kind = apply_subst subst obj_kind in
515 | NCic.Constant (_,_,None,ty,_) ->
516 (match classify status ~metasenv [] ty with
518 let ty = kind_of status ~metasenv [] ty in
519 let ctx,_ as res = split_kind_prods [] ty in
520 let ref = NReference.reference_of_spec uri NReference.Decl in
521 status#set_extraction_db
522 (ReferenceMap.add ref (ctx,None) status#extraction_db),
523 Some (uri, TypeDeclaration res)
525 | `Proposition -> status, None
527 | `KindOrType (*???*) ->
528 let ty = typ_of status ~metasenv [] ty in
530 Some (uri, TermDeclaration (split_typ_prods [] ty))
531 | `Term _ -> assert false (* IMPOSSIBLE *))
532 | NCic.Constant (_,_,Some bo,ty,_) ->
533 obj_of_constant status ~metasenv uri height bo ty
534 | NCic.Fixpoint (_fix_or_cofix,fs,_) ->
537 (fun (_,_name,_,ty,bo) (status,res) ->
538 let status,obj = obj_of_constant ~metasenv status uri height bo ty in
540 None -> status,res (*CSC: PRETTY PRINT SOMETHING ERASED*)
541 | Some (_uri,obj) -> status,obj::res)
544 status, Some (uri,LetRec objs)
545 | NCic.Inductive (ind,leftno,il,_) ->
546 obj_of_inductive status ~metasenv uri ind leftno il
549 prerr_endline "-- NOT IN F_omega";
552 (************************ HASKELL *************************)
554 (*CSC: code to be changed soon when we implement constructors and
555 we fix the code for term application *)
556 let classify_reference status ref =
557 if ReferenceMap.mem ref status#extraction_db then
562 let capitalize classification name =
563 match classification with
565 | `TypeName -> String.capitalize name
566 | `FunctionName -> String.uncapitalize name
568 let pp_ref status ref =
569 capitalize (classify_reference status ref)
570 (NCicPp.r2s status false ref)
572 let name_of_uri classification uri =
573 capitalize classification (NUri.name_of_uri uri)
575 (* cons avoid duplicates *)
576 let rec (@::) name l =
577 if name <> "" (* propositional things *) && name.[0] = '_' then
578 let name = String.sub name 1 (String.length name - 1) in
579 let name = if name = "" then "a" else name in
581 else if List.mem name l then (name ^ "'") @:: l
588 | KArrow (k1,k2) -> "(" ^ pp_kind k1 ^ ") -> " ^ pp_kind k2
589 | KSkip k -> pp_kind k
591 let rec pp_typ status ctx =
593 Var n -> List.nth ctx (n-1)
595 | Top -> assert false (* ??? *)
596 | TConst ref -> pp_ref status ref
597 | Arrow (t1,t2) -> "(" ^ pp_typ status ctx t1 ^ ") -> " ^ pp_typ status ("_"::ctx) t2
598 | Skip t -> pp_typ status ("_"::ctx) t
599 | Forall (name,_,t) ->
600 (*CSC: BUG HERE: avoid clashes due to uncapitalisation*)
601 let name = String.uncapitalize name in
602 "(forall " ^ name ^ ". " ^ pp_typ status (name@::ctx) t ^")"
603 | TAppl tl -> "(" ^ String.concat " " (List.map (pp_typ status ctx) tl) ^ ")"
605 let rec pp_term status ctx =
607 Rel n -> List.nth ctx (n-1)
609 | Const ref -> pp_ref status ref
610 | Lambda (name,t) -> "(\\" ^ name ^ " -> " ^ pp_term status (name@::ctx) t ^ ")"
611 | Appl tl -> "(" ^ String.concat " " (List.map (pp_term status ctx) tl) ^ ")"
612 | LetIn (name,s,t) ->
613 "(let " ^ name ^ " = " ^ pp_term status ctx s ^ " in " ^ pp_term status (name@::ctx) t ^
615 | Match (r,matched,pl) ->
616 let constructors, leftno =
617 let _,leftno,tys,_,n = NCicEnvironment.get_checked_indtys status r in
618 let _,_,_,cl = List.nth tys n in
621 let rec eat_branch n ty pat =
623 | NCic.Prod (_, _, t), _ when n > 0 ->
624 eat_branch (pred n) t pat
625 | NCic.Prod (_, _, t), Lambda (name, t') ->
626 (*CSC: BUG HERE; WHAT IF SOME ARGUMENTS ARE DELETED?*)
627 let cv, rhs = eat_branch 0 t t' in
635 (fun (_, name, ty) pat ->
637 name, eat_branch leftno ty pat
639 with Invalid_argument _ -> assert false
641 "case " ^ pp_term status ctx matched ^ " of\n" ^
644 (fun (name,(bound_names,rhs)) ->
646 (*CSC: BUG avoid name clashes *)
647 String.concat " " (String.capitalize name::bound_names),
648 pp_term status ((List.rev bound_names)@ctx) rhs
650 " " ^ pattern ^ " -> " ^ body
652 | TLambda t -> pp_term status ctx t
653 | Inst t -> pp_term status ctx t
656 type term_context = (string * [`OfKind of kind | `OfType of typ]) option list
658 type term_former_def = term_context * term * typ
659 type term_former_decl = term_context * typ
662 let rec pp_obj status (uri,obj_kind) =
664 String.concat " " (List.rev
665 (List.fold_right (fun (x,_) l -> x@::l)
666 (HExtlib.filter_map (fun x -> x) ctx) [])) in
667 let namectx_of_ctx ctx =
668 List.fold_right (@::)
669 (List.map (function None -> "" | Some (x,_) -> x) ctx) [] in
671 TypeDeclaration (ctx,_) ->
672 (* data?? unsure semantics: inductive type without constructor, but
673 not matchable apparently *)
674 "data " ^ name_of_uri `TypeName uri ^ " " ^ pp_ctx ctx
675 | TypeDefinition ((ctx,_),ty) ->
676 let namectx = namectx_of_ctx ctx in
677 "type " ^ name_of_uri `TypeName uri ^ " " ^ pp_ctx ctx ^ " = " ^
678 pp_typ status namectx ty
679 | TermDeclaration (ctx,ty) ->
680 (* Implemented with undefined, the best we can do *)
681 let name = name_of_uri `FunctionName uri in
682 name ^ " :: " ^ pp_typ status [] (glue_ctx_typ ctx ty) ^ "\n" ^
683 name ^ " = undefined"
684 | TermDefinition ((ctx,ty),bo) ->
685 let name = name_of_uri `FunctionName uri in
686 let namectx = namectx_of_ctx ctx in
688 name ^ " :: " ^ pp_typ status ["a";"b";"c"] (glue_ctx_typ ctx ty) ^ "\n" ^
689 name ^ " = " ^ pp_term status namectx bo
691 (*CSC: BUG always uses the name of the URI *)
692 String.concat "\n" (List.map (fun obj -> pp_obj status (uri,obj)) l)
697 (*CSC: BUG always uses the name of the URI *)
698 "data " ^ name_of_uri `TypeName uri ^ " " ^ pp_ctx ctx ^ " = " ^
699 String.concat " | " (List.map
701 capitalize `Constructor name ^
702 String.concat " " (List.map (pp_typ status []) tys)
705 (* inductive and records missing *)
707 let haskell_of_obj status obj =
708 let status, obj = obj_of status obj in
711 None -> "-- ERASED\n"
712 | Some obj -> pp_obj status obj ^ "\n"
715 let rec typ_of context =
721 (match get_nth context n with
722 Some (C.Name s,_) -> ppid s
723 | Some (C.Anonymous,_) -> "__" ^ string_of_int n
724 | None -> "_hidden_" ^ string_of_int n
727 NotEnoughElements -> string_of_int (List.length context - n)
732 "?" ^ (string_of_int n) ^ "[" ^
737 | Some t -> pp ~in_type:false t context) l1) ^
741 let _,context,_ = CicUtil.lookup_meta n metasenv in
742 "?" ^ (string_of_int n) ^ "[" ^
750 | Some _, Some t -> pp ~in_type:false t context
754 CicUtil.Meta_not_found _
755 | Invalid_argument _ ->
756 "???" ^ (string_of_int n) ^ "[" ^
758 (List.rev_map (function None -> "_" | Some t ->
759 pp ~in_type:false t context) l1) ^
767 (*| C.Type u -> ("Type" ^ CicUniv.string_of_universe u)*)
768 | C.CProp _ -> "CProp"
770 | C.Implicit (Some `Hole) -> "%"
771 | C.Implicit _ -> "?"
773 (match b, is_term s with
774 _, true -> typ_of (None::context) t
775 | "_",_ -> Arrow (typ_of context s) (typ_of (Some b::context) t)
776 | _,_ -> Forall (b,typ_of (Some b::context) t)
777 | C.Lambda (b,s,t) ->
778 (match analyze_type context s with
780 | `Statement -> pp ~in_type t ((Some (b,Cic.Decl s))::context)
781 | `Optimize -> prerr_endline "XXX lambda";assert false
783 "(function " ^ ppname b ^ " -> " ^
784 pp ~in_type t ((Some (b,Cic.Decl s))::context) ^ ")")
785 | C.LetIn (b,s,ty,t) ->
786 (match analyze_term context s with
788 | `Proof -> pp ~in_type t ((Some (b,Cic.Def (s,ty)))::context)
791 "(let " ^ ppname b ^ (*" : " ^ pp ~in_type:true ty context ^*)
792 " = " ^ pp ~in_type:false s context ^ " in " ^
793 pp ~in_type t ((Some (b,Cic.Def (s,ty)))::context) ^ ")")
794 | C.Appl (he::tl) when in_type ->
795 let hes = pp ~in_type he context in
796 let stl = String.concat "," (clean_args_for_ty context tl) in
797 (if stl = "" then "" else "(" ^ stl ^ ") ") ^ hes
798 | C.Appl (C.MutInd _ as he::tl) ->
799 let hes = pp ~in_type he context in
800 let stl = String.concat "," (clean_args_for_ty context tl) in
801 (if stl = "" then "" else "(" ^ stl ^ ") ") ^ hes
802 | C.Appl (C.MutConstruct (uri,n,_,_) as he::tl) ->
804 match fst(CicEnvironment.get_obj CicUniv.oblivion_ugraph uri) with
805 C.InductiveDefinition (_,_,nparams,_) -> nparams
806 | _ -> assert false in
807 let hes = pp ~in_type he context in
808 let stl = String.concat "," (clean_args_for_constr nparams context tl) in
809 "(" ^ hes ^ (if stl = "" then "" else "(" ^ stl ^ ")") ^ ")"
811 "(" ^ String.concat " " (clean_args context li) ^ ")"
812 | C.Const (uri,exp_named_subst) ->
813 qualified_name_of_uri status current_module_uri uri ^
814 pp_exp_named_subst exp_named_subst context
815 | C.MutInd (uri,n,exp_named_subst) ->
817 match fst(CicEnvironment.get_obj CicUniv.oblivion_ugraph uri) with
818 C.InductiveDefinition (dl,_,_,_) ->
819 let (name,_,_,_) = get_nth dl (n+1) in
820 qualified_name_of_uri status current_module_uri
821 (UriManager.uri_of_string
822 (UriManager.buri_of_uri uri ^ "/" ^ name ^ ".con")) ^
823 pp_exp_named_subst exp_named_subst context
824 | _ -> raise CicExportationInternalError
826 Sys.Break as exn -> raise exn
827 | _ -> UriManager.string_of_uri uri ^ "#1/" ^ string_of_int (n + 1)
829 | C.MutConstruct (uri,n1,n2,exp_named_subst) ->
831 match fst(CicEnvironment.get_obj CicUniv.oblivion_ugraph uri) with
832 C.InductiveDefinition (dl,_,_,_) ->
833 let _,_,_,cons = get_nth dl (n1+1) in
834 let id,_ = get_nth cons n2 in
835 qualified_name_of_uri status current_module_uri ~capitalize:true
836 (UriManager.uri_of_string
837 (UriManager.buri_of_uri uri ^ "/" ^ id ^ ".con")) ^
838 pp_exp_named_subst exp_named_subst context
839 | _ -> raise CicExportationInternalError
841 Sys.Break as exn -> raise exn
843 UriManager.string_of_uri uri ^ "#1/" ^ string_of_int (n1 + 1) ^ "/" ^
846 | C.MutCase (uri,n1,ty,te,patterns) ->
848 "unit (* TOO POLYMORPHIC TYPE *)"
850 let rec needs_obj_magic ty =
851 match CicReduction.whd context ty with
852 | Cic.Lambda (_,_,(Cic.Lambda(_,_,_) as t)) -> needs_obj_magic t
853 | Cic.Lambda (_,_,t) -> not (DoubleTypeInference.does_not_occur 1 t)
854 | _ -> false (* it can be a Rel, e.g. in *_rec *)
856 let needs_obj_magic = needs_obj_magic ty in
857 (match analyze_term context te with
858 `Type -> assert false
861 [] -> "assert false" (* empty type elimination *)
863 pp ~in_type:false he context (* singleton elimination *)
867 if patterns = [] then "assert false"
869 (let connames_and_argsno, go_up, go_pu, go_down, go_nwod =
870 (match fst(CicEnvironment.get_obj CicUniv.oblivion_ugraph uri) with
871 C.InductiveDefinition (dl,_,paramsno,_) ->
872 let (_,_,_,cons) = get_nth dl (n1+1) in
876 (* this is just an approximation since we do not have
878 let rec count_prods toskip =
880 C.Prod (_,_,bo) when toskip > 0 ->
881 count_prods (toskip - 1) bo
882 | C.Prod (_,_,bo) -> 1 + count_prods 0 bo
885 qualified_name_of_uri status current_module_uri
887 (UriManager.uri_of_string
888 (UriManager.buri_of_uri uri ^ "/" ^ id ^ ".con")),
889 count_prods paramsno ty
892 if not (is_mcu_type uri) then rc, "","","",""
893 else rc, !current_go_up, "))", "( .< (", " ) >.)"
894 | _ -> raise CicExportationInternalError
897 let connames_and_argsno_and_patterns =
901 | (x,no)::tlx,y::tly -> (x,no,y)::(combine (tlx,tly))
902 | _,_ -> assert false
904 combine (connames_and_argsno,patterns)
907 "\n(match " ^ pp ~in_type:false te context ^ " with \n " ^
908 (String.concat "\n | "
911 let rec aux argsno context =
913 Cic.Lambda (name,ty,bo) when argsno > 0 ->
916 Cic.Anonymous -> Cic.Anonymous
917 | Cic.Name n -> Cic.Name (ppid n) in
919 aux (argsno - 1) (Some (name,Cic.Decl ty)::context)
922 (match analyze_type context ty with
923 | `Optimize -> prerr_endline "XXX contructor with l2 arg"; assert false
925 | `Sort _ -> args,res
929 | C.Name s -> s)::args,res)
930 | t when argsno = 0 -> [],pp ~in_type:false t context
932 ["{" ^ string_of_int argsno ^ " args missing}"],
933 pp ~in_type:false t context
936 if argsno = 0 then x,pp ~in_type:false y context
938 let args,body = aux argsno context y in
939 let sargs = String.concat "," args in
940 x ^ (if sargs = "" then "" else "(" ^ sargs^ ")"),
943 pattern ^ " -> " ^ go_down ^
944 (if needs_obj_magic then
945 "Obj.magic (" ^ body ^ ")"
948 ) connames_and_argsno_and_patterns)) ^
950 | C.Fix (no, funs) ->
953 (fun (types,len) (n,_,ty,_) ->
954 (Some (C.Name n,(C.Decl (CicSubstitution.lift len ty)))::types,
960 (fun (name,ind,ty,bo) i -> name ^ " = \n" ^
961 pp ~in_type:false bo (names@context) ^ i)
964 (match get_nth names (no + 1) with
965 Some (Cic.Name n,_) -> n
967 | C.CoFix (no,funs) ->
970 (fun (types,len) (n,ty,_) ->
971 (Some (C.Name n,(C.Decl (CicSubstitution.lift len ty)))::types,
977 (fun (name,ty,bo) i -> "\n" ^ name ^
978 " : " ^ pp ~in_type:true ty context ^ " := \n" ^
979 pp ~in_type:false bo (names@context) ^ i)
985 exception CicExportationInternalError;;
986 exception NotEnoughElements;;
991 UriManager.eq (UriManager.uri_of_string
992 "cic:/matita/freescale/opcode/mcu_type.ind") u
995 (* Utility functions *)
997 let analyze_term context t =
998 match fst(CicTypeChecker.type_of_aux' [] context t CicUniv.oblivion_ugraph)with
999 | Cic.Sort _ -> `Type
1000 | Cic.MutInd (u,0,_) when is_mcu_type u -> `Optimize
1003 fst (CicTypeChecker.type_of_aux' [] context ty CicUniv.oblivion_ugraph)
1005 | Cic.Sort Cic.Prop -> `Proof
1009 let analyze_type context t =
1012 Cic.Sort s -> `Sort s
1013 | Cic.MutInd (u,0,_) when is_mcu_type u -> `Optimize
1014 | Cic.Prod (_,_,t) -> aux t
1015 | _ -> `SomethingElse
1018 `Sort _ | `Optimize as res -> res
1021 fst(CicTypeChecker.type_of_aux' [] context t CicUniv.oblivion_ugraph)
1023 Cic.Sort Cic.Prop -> `Statement
1037 let n = String.uncapitalize n in
1038 if List.mem n reserved then n ^ "_" else n
1043 Cic.Name s -> ppid s
1044 | Cic.Anonymous -> "_"
1047 (* get_nth l n returns the nth element of the list l if it exists or *)
1048 (* raises NotEnoughElements if l has less than n elements *)
1049 let rec get_nth l n =
1052 | (n, he::tail) when n > 1 -> get_nth tail (n-1)
1053 | (_,_) -> raise NotEnoughElements
1056 let qualified_name_of_uri status current_module_uri ?(capitalize=false) uri =
1059 String.capitalize (UriManager.name_of_uri status uri)
1061 ppid (UriManager.name_of_uri status uri) in
1063 let suri = UriManager.buri_of_uri uri in
1064 let s = String.sub suri 5 (String.length suri - 5) in
1065 let s = Pcre.replace ~pat:"/" ~templ:"_" s in
1066 String.uncapitalize s in
1067 if current_module_uri = UriManager.buri_of_uri uri then
1070 String.capitalize filename ^ "." ^ name
1073 let current_go_up = ref "(.!(";;
1076 current_go_up := "(.~(";
1078 current_go_up := "(.!(";
1081 current_go_up := "(.!(";
1085 let pp current_module_uri ?metasenv ~in_type =
1086 let rec pp ~in_type t context =
1087 let module C = Cic in
1092 (match get_nth context n with
1093 Some (C.Name s,_) -> ppid s
1094 | Some (C.Anonymous,_) -> "__" ^ string_of_int n
1095 | None -> "_hidden_" ^ string_of_int n
1098 NotEnoughElements -> string_of_int (List.length context - n)
1100 | C.Var (uri,exp_named_subst) ->
1101 qualified_name_of_uri status current_module_uri uri ^
1102 pp_exp_named_subst exp_named_subst context
1104 (match metasenv with
1106 "?" ^ (string_of_int n) ^ "[" ^
1111 | Some t -> pp ~in_type:false t context) l1) ^
1115 let _,context,_ = CicUtil.lookup_meta n metasenv in
1116 "?" ^ (string_of_int n) ^ "[" ^
1124 | Some _, Some t -> pp ~in_type:false t context
1128 CicUtil.Meta_not_found _
1129 | Invalid_argument _ ->
1130 "???" ^ (string_of_int n) ^ "[" ^
1132 (List.rev_map (function None -> "_" | Some t ->
1133 pp ~in_type:false t context) l1) ^
1140 | C.Type _ -> "Type"
1141 (*| C.Type u -> ("Type" ^ CicUniv.string_of_universe u)*)
1142 | C.CProp _ -> "CProp"
1144 | C.Implicit (Some `Hole) -> "%"
1145 | C.Implicit _ -> "?"
1149 let n = "'" ^ String.uncapitalize n in
1150 "(" ^ pp ~in_type:true s context ^ " -> " ^
1151 pp ~in_type:true t ((Some (Cic.Name n,Cic.Decl s))::context) ^ ")"
1153 "(" ^ pp ~in_type:true s context ^ " -> " ^
1154 pp ~in_type:true t ((Some (b,Cic.Decl s))::context) ^ ")")
1155 | C.Cast (v,t) -> pp ~in_type v context
1156 | C.Lambda (b,s,t) ->
1157 (match analyze_type context s with
1159 | `Statement -> pp ~in_type t ((Some (b,Cic.Decl s))::context)
1160 | `Optimize -> prerr_endline "XXX lambda";assert false
1162 "(function " ^ ppname b ^ " -> " ^
1163 pp ~in_type t ((Some (b,Cic.Decl s))::context) ^ ")")
1164 | C.LetIn (b,s,ty,t) ->
1165 (match analyze_term context s with
1167 | `Proof -> pp ~in_type t ((Some (b,Cic.Def (s,ty)))::context)
1170 "(let " ^ ppname b ^ (*" : " ^ pp ~in_type:true ty context ^*)
1171 " = " ^ pp ~in_type:false s context ^ " in " ^
1172 pp ~in_type t ((Some (b,Cic.Def (s,ty)))::context) ^ ")")
1173 | C.Appl (he::tl) when in_type ->
1174 let hes = pp ~in_type he context in
1175 let stl = String.concat "," (clean_args_for_ty context tl) in
1176 (if stl = "" then "" else "(" ^ stl ^ ") ") ^ hes
1177 | C.Appl (C.MutInd _ as he::tl) ->
1178 let hes = pp ~in_type he context in
1179 let stl = String.concat "," (clean_args_for_ty context tl) in
1180 (if stl = "" then "" else "(" ^ stl ^ ") ") ^ hes
1181 | C.Appl (C.MutConstruct (uri,n,_,_) as he::tl) ->
1183 match fst(CicEnvironment.get_obj CicUniv.oblivion_ugraph uri) with
1184 C.InductiveDefinition (_,_,nparams,_) -> nparams
1185 | _ -> assert false in
1186 let hes = pp ~in_type he context in
1187 let stl = String.concat "," (clean_args_for_constr nparams context tl) in
1188 "(" ^ hes ^ (if stl = "" then "" else "(" ^ stl ^ ")") ^ ")"
1190 "(" ^ String.concat " " (clean_args context li) ^ ")"
1191 | C.Const (uri,exp_named_subst) ->
1192 qualified_name_of_uri status current_module_uri uri ^
1193 pp_exp_named_subst exp_named_subst context
1194 | C.MutInd (uri,n,exp_named_subst) ->
1196 match fst(CicEnvironment.get_obj CicUniv.oblivion_ugraph uri) with
1197 C.InductiveDefinition (dl,_,_,_) ->
1198 let (name,_,_,_) = get_nth dl (n+1) in
1199 qualified_name_of_uri status current_module_uri
1200 (UriManager.uri_of_string
1201 (UriManager.buri_of_uri uri ^ "/" ^ name ^ ".con")) ^
1202 pp_exp_named_subst exp_named_subst context
1203 | _ -> raise CicExportationInternalError
1205 Sys.Break as exn -> raise exn
1206 | _ -> UriManager.string_of_uri uri ^ "#1/" ^ string_of_int (n + 1)
1208 | C.MutConstruct (uri,n1,n2,exp_named_subst) ->
1210 match fst(CicEnvironment.get_obj CicUniv.oblivion_ugraph uri) with
1211 C.InductiveDefinition (dl,_,_,_) ->
1212 let _,_,_,cons = get_nth dl (n1+1) in
1213 let id,_ = get_nth cons n2 in
1214 qualified_name_of_uri status current_module_uri ~capitalize:true
1215 (UriManager.uri_of_string
1216 (UriManager.buri_of_uri uri ^ "/" ^ id ^ ".con")) ^
1217 pp_exp_named_subst exp_named_subst context
1218 | _ -> raise CicExportationInternalError
1220 Sys.Break as exn -> raise exn
1222 UriManager.string_of_uri uri ^ "#1/" ^ string_of_int (n1 + 1) ^ "/" ^
1225 | C.MutCase (uri,n1,ty,te,patterns) ->
1227 "unit (* TOO POLYMORPHIC TYPE *)"
1229 let rec needs_obj_magic ty =
1230 match CicReduction.whd context ty with
1231 | Cic.Lambda (_,_,(Cic.Lambda(_,_,_) as t)) -> needs_obj_magic t
1232 | Cic.Lambda (_,_,t) -> not (DoubleTypeInference.does_not_occur 1 t)
1233 | _ -> false (* it can be a Rel, e.g. in *_rec *)
1235 let needs_obj_magic = needs_obj_magic ty in
1236 (match analyze_term context te with
1237 `Type -> assert false
1239 (match patterns with
1240 [] -> "assert false" (* empty type elimination *)
1242 pp ~in_type:false he context (* singleton elimination *)
1243 | _ -> assert false)
1246 if patterns = [] then "assert false"
1248 (let connames_and_argsno, go_up, go_pu, go_down, go_nwod =
1249 (match fst(CicEnvironment.get_obj CicUniv.oblivion_ugraph uri) with
1250 C.InductiveDefinition (dl,_,paramsno,_) ->
1251 let (_,_,_,cons) = get_nth dl (n1+1) in
1255 (* this is just an approximation since we do not have
1257 let rec count_prods toskip =
1259 C.Prod (_,_,bo) when toskip > 0 ->
1260 count_prods (toskip - 1) bo
1261 | C.Prod (_,_,bo) -> 1 + count_prods 0 bo
1264 qualified_name_of_uri status current_module_uri
1266 (UriManager.uri_of_string
1267 (UriManager.buri_of_uri uri ^ "/" ^ id ^ ".con")),
1268 count_prods paramsno ty
1271 if not (is_mcu_type uri) then rc, "","","",""
1272 else rc, !current_go_up, "))", "( .< (", " ) >.)"
1273 | _ -> raise CicExportationInternalError
1276 let connames_and_argsno_and_patterns =
1280 | (x,no)::tlx,y::tly -> (x,no,y)::(combine (tlx,tly))
1281 | _,_ -> assert false
1283 combine (connames_and_argsno,patterns)
1286 "\n(match " ^ pp ~in_type:false te context ^ " with \n " ^
1287 (String.concat "\n | "
1289 (fun (x,argsno,y) ->
1290 let rec aux argsno context =
1292 Cic.Lambda (name,ty,bo) when argsno > 0 ->
1295 Cic.Anonymous -> Cic.Anonymous
1296 | Cic.Name n -> Cic.Name (ppid n) in
1298 aux (argsno - 1) (Some (name,Cic.Decl ty)::context)
1301 (match analyze_type context ty with
1302 | `Optimize -> prerr_endline "XXX contructor with l2 arg"; assert false
1304 | `Sort _ -> args,res
1308 | C.Name s -> s)::args,res)
1309 | t when argsno = 0 -> [],pp ~in_type:false t context
1311 ["{" ^ string_of_int argsno ^ " args missing}"],
1312 pp ~in_type:false t context
1315 if argsno = 0 then x,pp ~in_type:false y context
1317 let args,body = aux argsno context y in
1318 let sargs = String.concat "," args in
1319 x ^ (if sargs = "" then "" else "(" ^ sargs^ ")"),
1322 pattern ^ " -> " ^ go_down ^
1323 (if needs_obj_magic then
1324 "Obj.magic (" ^ body ^ ")"
1327 ) connames_and_argsno_and_patterns)) ^
1329 | C.Fix (no, funs) ->
1332 (fun (types,len) (n,_,ty,_) ->
1333 (Some (C.Name n,(C.Decl (CicSubstitution.lift len ty)))::types,
1339 (fun (name,ind,ty,bo) i -> name ^ " = \n" ^
1340 pp ~in_type:false bo (names@context) ^ i)
1343 (match get_nth names (no + 1) with
1344 Some (Cic.Name n,_) -> n
1345 | _ -> assert false)
1346 | C.CoFix (no,funs) ->
1349 (fun (types,len) (n,ty,_) ->
1350 (Some (C.Name n,(C.Decl (CicSubstitution.lift len ty)))::types,
1356 (fun (name,ty,bo) i -> "\n" ^ name ^
1357 " : " ^ pp ~in_type:true ty context ^ " := \n" ^
1358 pp ~in_type:false bo (names@context) ^ i)
1361 and pp_exp_named_subst exp_named_subst context =
1362 if exp_named_subst = [] then "" else
1364 String.concat " ; " (
1366 (function (uri,t) -> UriManager.name_of_uri status uri ^ " \\Assign " ^ pp ~in_type:false t context)
1369 and clean_args_for_constr nparams context =
1370 let nparams = ref nparams in
1374 match analyze_term context t with
1375 `Term when !nparams < 0 -> Some (pp ~in_type:false t context)
1380 and clean_args context =
1382 | [] | [_] -> assert false
1383 | he::arg1::tl as l ->
1384 let head_arg1, rest =
1385 match analyze_term context arg1 with
1387 !current_go_up :: pp ~in_type:false he context ::
1388 pp ~in_type:false arg1 context :: ["))"], tl
1394 match analyze_term context t with
1395 | `Term -> Some (pp ~in_type:false t context)
1397 prerr_endline "XXX function taking twice (or not as first) a l2 term"; assert false
1399 | `Proof -> None) rest
1400 and clean_args_for_ty context =
1403 match analyze_term context t with
1404 `Type -> Some (pp ~in_type:true t context)
1412 let ppty current_module_uri =
1413 (* nparams is the number of left arguments
1414 left arguments should either become parameters or be skipped altogether *)
1415 let rec args nparams context =
1420 Cic.Anonymous -> Cic.Anonymous
1421 | Cic.Name n -> Cic.Name (String.uncapitalize n)
1423 (match analyze_type context s with
1427 args (nparams - 1) ((Some (n,Cic.Decl s))::context) t
1428 | `Type when nparams > 0 ->
1429 args (nparams - 1) ((Some (n,Cic.Decl s))::context) t
1432 args (nparams - 1) ((Some (n,Cic.Decl s))::context) t in
1433 abstr,pp ~in_type:true current_module_uri s context::args
1434 | `Sort _ when nparams <= 0 ->
1435 let n = Cic.Name "unit (* EXISTENTIAL TYPE *)" in
1436 args (nparams - 1) ((Some (n,Cic.Decl s))::context) t
1440 Cic.Anonymous -> Cic.Anonymous
1441 | Cic.Name name -> Cic.Name ("'" ^ name) in
1443 args (nparams - 1) ((Some (n,Cic.Decl s))::context) t
1446 Cic.Anonymous -> abstr
1447 | Cic.Name name -> name::abstr),
1454 exception DoNotExtract;;
1456 let pp_abstracted_ty current_module_uri =
1457 let rec args context =
1459 Cic.Lambda (n,s,t) ->
1462 Cic.Anonymous -> Cic.Anonymous
1463 | Cic.Name n -> Cic.Name (String.uncapitalize n)
1465 (match analyze_type context s with
1470 args ((Some (n,Cic.Decl s))::context) t
1474 Cic.Anonymous -> Cic.Anonymous
1475 | Cic.Name name -> Cic.Name ("'" ^ name) in
1477 args ((Some (n,Cic.Decl s))::context) t
1480 Cic.Anonymous -> abstr
1481 | Cic.Name name -> name::abstr),
1484 match analyze_type context ty with
1486 prerr_endline "XXX abstracted l2 ty"; assert false
1488 | `Statement -> raise DoNotExtract
1490 (* BUG HERE: this can be a real System F type *)
1491 let head = pp ~in_type:true current_module_uri ty context in
1498 (* ppinductiveType (typename, inductive, arity, cons) *)
1499 (* pretty-prints a single inductive definition *)
1500 (* (typename, inductive, arity, cons) *)
1501 let ppinductiveType current_module_uri nparams (typename, inductive, arity, cons)
1503 match analyze_type [] arity with
1504 `Sort Cic.Prop -> ""
1507 | `Type -> assert false
1510 "type " ^ String.uncapitalize typename ^ " = unit (* empty type *)\n"
1514 (fun (id,ty) (_abstr,i) -> (* we should verify _abstr = abstr' *)
1515 let abstr',sargs = ppty current_module_uri nparams [] ty in
1516 let sargs = String.concat " * " sargs in
1518 String.capitalize id ^
1519 (if sargs = "" then "" else " of " ^ sargs) ^
1520 (if i = "" then "" else "\n | ") ^ i)
1524 let s = String.concat "," abstr in
1525 if s = "" then "" else "(" ^ s ^ ") "
1527 "type " ^ abstr ^ String.uncapitalize typename ^ " =\n" ^ scons ^ "\n")
1530 let ppobj current_module_uri obj =
1531 let module C = Cic in
1532 let module U = UriManager in
1533 let pp ~in_type = pp ~in_type current_module_uri in
1535 C.Constant (name, Some t1, t2, params, _) ->
1536 (match analyze_type [] t2 with
1542 | Cic.Lambda (Cic.Name arg, s, t) ->
1543 (match analyze_type [] s with
1546 "let " ^ ppid name ^ "__1 = function " ^ ppid arg
1548 at_level2 (pp ~in_type:false t) [Some (Cic.Name arg, Cic.Decl s)]
1550 ^ "let " ^ ppid name ^ "__2 = ref ([] : (unit list*unit list) list);;\n"
1551 ^ "let " ^ ppid name ^ " = function " ^ ppid arg
1552 ^ " -> (try ignore (List.assoc "^ppid arg^" (Obj.magic !"^ppid name
1553 ^"__2)) with Not_found -> "^ppid name^"__2 := (Obj.magic ("
1554 ^ ppid arg^",.! ("^ppid name^"__1 "^ppid arg^")))::!"
1555 ^ppid name^"__2); .< List.assoc "^ppid arg^" (Obj.magic (!"
1556 ^ppid name^"__2)) >.\n;;\n"
1557 ^" let xxx = prerr_endline \""^ppid name^"\"; .!("^ppid
1558 name^" Matita_freescale_opcode.HCS08)"
1560 "let " ^ ppid name ^ " =\n" ^ pp ~in_type:false t1 [] ^ "\n")
1561 | _ -> "let " ^ ppid name ^ " =\n" ^ pp ~in_type:false t1 [] ^ "\n")
1563 match analyze_type [] t1 with
1564 `Sort Cic.Prop -> ""
1565 | `Optimize -> prerr_endline "XXX aliasing l2 type"; assert false
1568 let abstr,res = pp_abstracted_ty current_module_uri [] t1 in
1570 let s = String.concat "," abstr in
1571 if s = "" then "" else "(" ^ s ^ ") "
1573 "type " ^ abstr ^ ppid name ^ " = " ^ res ^ "\n"
1575 DoNotExtract -> ""))
1576 | C.Constant (name, None, ty, params, _) ->
1577 (match analyze_type [] ty with
1579 | `Optimize -> prerr_endline "XXX axiom l2"; assert false
1581 | `Sort _ -> "type " ^ ppid name ^ "\n"
1582 | `Type -> "let " ^ ppid name ^ " = assert false\n")
1583 | C.Variable (name, bo, ty, params, _) ->
1584 "Variable " ^ name ^
1585 "(" ^ String.concat ";" (List.map UriManager.string_of_uri params) ^
1587 pp ~in_type:true ty [] ^ "\n" ^
1588 (match bo with None -> "" | Some bo -> ":= " ^ pp ~in_type:false bo [])
1589 | C.CurrentProof (name, conjectures, value, ty, params, _) ->
1590 "Current Proof of " ^ name ^
1591 "(" ^ String.concat ";" (List.map UriManager.string_of_uri params) ^
1593 let separate s = if s = "" then "" else s ^ " ; " in
1595 (fun (n, context, t) i ->
1596 let conjectures',name_context =
1598 (fun context_entry (i,name_context) ->
1599 (match context_entry with
1600 Some (n,C.Decl at) ->
1603 pp ~in_type:true ~metasenv:conjectures
1604 at name_context ^ " ",
1605 context_entry::name_context
1606 | Some (n,C.Def (at,aty)) ->
1609 pp ~in_type:true ~metasenv:conjectures
1611 ":= " ^ pp ~in_type:false
1612 ~metasenv:conjectures at name_context ^ " ",
1613 context_entry::name_context
1615 (separate i) ^ "_ :? _ ", context_entry::name_context)
1618 conjectures' ^ " |- " ^ "?" ^ (string_of_int n) ^ ": " ^
1619 pp ~in_type:true ~metasenv:conjectures t name_context ^ "\n" ^ i
1621 "\n" ^ pp ~in_type:false ~metasenv:conjectures value [] ^ " : " ^
1622 pp ~in_type:true ~metasenv:conjectures ty []
1623 | C.InductiveDefinition (l, params, nparams, _) ->
1625 (fun x i -> ppinductiveType current_module_uri nparams x ^ i) l ""
1628 let ppobj current_module_uri obj =
1629 let res = ppobj current_module_uri obj in
1630 if res = "" then "" else res ^ ";;\n\n"