1 (* Copyright (C) 2005, 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.
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23 * http://helm.cs.unibo.it/
26 (* $Id: termAcicContent.ml 9304 2008-12-05 23:12:39Z sacerdot $ *)
30 module Ast = CicNotationPt
33 let debug_print s = if debug then prerr_endline (Lazy.force s) else ()
38 type interpretation_id = int
41 { sort: (Cic.id, Ast.sort_kind) Hashtbl.t;
42 uri: (Cic.id, UriManager.uri) Hashtbl.t;
46 let o,_ = CicEnvironment.get_obj CicUniv.oblivion_ugraph uri in
48 | Cic.InductiveDefinition (l,_,leftno,_) -> l, leftno
52 let idref register_ref =
56 let id = "i" ^ string_of_int !id in
57 (match reference with None -> () | Some r -> register_ref id r);
58 Ast.AttributedTerm (`IdRef id, t)
61 (* CODICE c&p da NCicPp *)
62 let nast_of_cic0 status
64 ?reference:NReference.reference -> CicNotationPt.term -> CicNotationPt.term)
65 ~output_type ~metasenv ~subst k ~context =
69 let name,_ = List.nth context (n-1) in
70 let name = if name = "_" then "__"^string_of_int n else name in
71 idref (Ast.Ident (name,None))
72 with Failure "nth" | Invalid_argument "List.nth" ->
73 idref (Ast.Ident ("-" ^ string_of_int (n - List.length context),None)))
74 | NCic.Const r -> idref ~reference:r (Ast.Ident (NCicPp.r2s true r, None))
75 | NCic.Meta (n,lc) when List.mem_assoc n subst ->
76 let _,_,t,_ = List.assoc n subst in
77 k ~context (NCicSubstitution.subst_meta lc t)
78 | NCic.Meta (n,(s,l)) ->
79 (* CSC: qua non dovremmo espandere *)
80 let l = NCicUtils.expand_local_context l in
82 (n, List.map (fun x -> Some (k ~context (NCicSubstitution.lift s x))) l))
83 | NCic.Sort NCic.Prop -> idref (Ast.Sort `Prop)
84 | NCic.Sort NCic.Type _ -> idref (Ast.Sort `Set)
85 (* CSC: | C.Sort (C.Type []) -> F.fprintf f "Type0"
86 | C.Sort (C.Type [false, u]) -> F.fprintf f "%s" (NUri.name_of_uri u)
87 | C.Sort (C.Type [true, u]) -> F.fprintf f "S(%s)" (NUri.name_of_uri u)
88 | C.Sort (C.Type l) ->
90 aux ctx (C.Sort (C.Type [List.hd l]));
91 List.iter (fun x -> F.fprintf f ",";aux ctx (C.Sort (C.Type [x])))
94 (* CSC: qua siamo grezzi *)
95 | NCic.Implicit `Hole -> idref (Ast.UserInput)
96 | NCic.Implicit `Vector -> idref (Ast.Implicit `Vector)
97 | NCic.Implicit _ -> idref (Ast.Implicit `JustOne)
98 | NCic.Prod (n,s,t) ->
99 let n = if n.[0] = '_' then "_" else n in
100 let binder_kind = `Forall in
101 idref (Ast.Binder (binder_kind, (Ast.Ident (n,None), Some (k ~context s)),
102 k ~context:((n,NCic.Decl s)::context) t))
103 | NCic.Lambda (n,s,t) ->
104 idref (Ast.Binder (`Lambda,(Ast.Ident (n,None), Some (k ~context s)),
105 k ~context:((n,NCic.Decl s)::context) t))
106 | NCic.LetIn (n,s,ty,NCic.Rel 1) ->
107 idref (Ast.Cast (k ~context ty, k ~context s))
108 | NCic.LetIn (n,s,ty,t) ->
109 idref (Ast.LetIn ((Ast.Ident (n,None), Some (k ~context s)), k ~context
110 ty, k ~context:((n,NCic.Decl s)::context) t))
111 | NCic.Appl (NCic.Meta (n,lc) :: args) when List.mem_assoc n subst ->
112 let _,_,t,_ = List.assoc n subst in
113 let hd = NCicSubstitution.subst_meta lc t in
115 (NCicReduction.head_beta_reduce ~upto:(List.length args)
117 | NCic.Appl l -> NCic.Appl (l@args)
118 | _ -> NCic.Appl (hd :: args)))
119 | NCic.Appl args as t ->
121 if not !Acic2content.hide_coercions then args
124 NCicCoercion.match_coercion status ~metasenv ~context ~subst t
127 | Some (_,sats,cpos) ->
128 (* CSC: sats e' il numero di pi, ma non so cosa farmene! voglio il numero di
129 argomenti da saltare, come prima! *)
130 if cpos < List.length args - 1 then
131 List.nth args (cpos + 1) ::
132 try snd (HExtlib.split_nth (cpos+sats+2) args) with Failure _->[]
137 [arg] -> idref (k ~context arg)
138 | _ -> idref (Ast.Appl (List.map (k ~context) args)))
139 | NCic.Match (NReference.Ref (uri,_) as r,outty,te,patterns) ->
140 let name = NUri.name_of_uri uri in
142 let uri_str = UriManager.string_of_uri uri in
143 let puri_str = sprintf "%s#xpointer(1/%d)" uri_str (typeno+1) in
145 UriManager.uri_of_string
146 (sprintf "%s#xpointer(1/%d/%d)" uri_str (typeno+1) j)
150 name, None(*CSC Some (UriManager.uri_of_string puri_str)*) in
151 let constructors, leftno =
152 let _,leftno,tys,_,n = NCicEnvironment.get_checked_indtys r in
153 let _,_,_,cl = List.nth tys n in
156 let rec eat_branch n ctx ty pat =
158 | NCic.Prod (name, s, t), _ when n > 0 ->
159 eat_branch (pred n) ctx t pat
160 | NCic.Prod (_, _, t), NCic.Lambda (name, s, t') ->
161 let cv, rhs = eat_branch 0 ((name,NCic.Decl s)::ctx) t t' in
162 (Ast.Ident (name,None), Some (k ~context:ctx s)) :: cv, rhs
163 | _, _ -> [], k ~context:ctx pat
169 (fun (_, name, ty) pat ->
171 let name,(capture_variables,rhs) =
172 match output_type with
173 `Term -> name, eat_branch leftno context ty pat
174 | `Pattern -> "_", ([], k ~context pat)
176 Ast.Pattern (name, None(*CSC Some (ctor_puri !j)*), capture_variables), rhs
177 ) constructors patterns
178 with Invalid_argument _ -> assert false
181 match output_type with
183 | `Term -> Some case_indty
185 idref (Ast.Case (k ~context te, indty, Some (k ~context outty), patterns))
188 (* persistent state *)
191 let initial_level2_patterns32 () = Hashtbl.create 211
192 let initial_interpretations () = Hashtbl.create 211
194 let level2_patterns32 = ref (initial_level2_patterns32 ())
195 (* symb -> id list ref *)
196 let interpretations = ref (initial_interpretations ())
198 let compiled32 = ref None
200 let pattern32_matrix = ref []
201 let counter = ref ~-1
206 stack := (!counter,!level2_patterns32,!interpretations,!compiled32,!pattern32_matrix)::!stack;
208 level2_patterns32 := initial_level2_patterns32 ();
209 interpretations := initial_interpretations ();
211 pattern32_matrix := []
217 | (ocounter,olevel2_patterns32,ointerpretations,ocompiled32,opattern32_matrix)::old ->
220 level2_patterns32 := olevel2_patterns32;
221 interpretations := ointerpretations;
222 compiled32 := ocompiled32;
223 pattern32_matrix := opattern32_matrix
227 let get_compiled32 () =
228 match !compiled32 with
229 | None -> assert false
230 | Some f -> Lazy.force f
232 let set_compiled32 f = compiled32 := Some f
235 List.fold_right (fun idref t -> Ast.AttributedTerm (`IdRef idref, t))
237 let instantiate32 idrefs env symbol args =
238 let rec instantiate_arg = function
239 | Ast.IdentArg (n, name) ->
241 try List.assoc name env
242 with Not_found -> prerr_endline ("name not found in env: "^name);
245 let rec count_lambda = function
246 | Ast.AttributedTerm (_, t) -> count_lambda t
247 | Ast.Binder (`Lambda, _, body) -> 1 + count_lambda body
250 let rec add_lambda t n =
252 let name = CicNotationUtil.fresh_name () in
253 Ast.Binder (`Lambda, (Ast.Ident (name, None), None),
254 Ast.Appl [add_lambda t (n - 1); Ast.Ident (name, None)])
258 add_lambda t (n - count_lambda t)
261 let symbol = Ast.Symbol (symbol, 0) in
262 add_idrefs idrefs symbol
264 if args = [] then head
265 else Ast.Appl (head :: List.map instantiate_arg args)
267 let rec nast_of_cic1 status ~idref ~output_type ~metasenv ~subst ~context term =
268 match (get_compiled32 ()) term with
270 nast_of_cic0 status ~idref ~output_type ~metasenv ~subst
271 (nast_of_cic1 status ~idref ~output_type ~metasenv ~subst) ~context term
272 | Some (env, ctors, pid) ->
279 (match term with NCic.Const nref -> nref | _ -> assert false)
280 (CicNotationPt.Ident ("dummy",None))
283 Ast.AttributedTerm (`IdRef id, _) -> id
291 nast_of_cic1 status ~idref ~output_type ~subst ~metasenv ~context
295 let _, symbol, args, _ =
297 TermAcicContent.find_level2_patterns32 pid
298 with Not_found -> assert false
300 let ast = instantiate32 idrefs env symbol args in
301 idref ast (*Ast.AttributedTerm (`IdRef (idref term), ast)*)
304 let load_patterns32 t =
306 HExtlib.filter_map (function (true, ap, id) -> Some (ap, id) | _ -> None) t
308 set_compiled32 (lazy (Ncic2astMatcher.Matcher32.compiler t))
310 TermAcicContent.add_load_patterns32 load_patterns32;
311 TermAcicContent.init ()
315 let ast_of_acic ~output_type id_to_sort annterm =
316 debug_print (lazy ("ast_of_acic <- "
317 ^ CicPp.ppterm (Deannotate.deannotate_term annterm)));
318 let term_info = { sort = id_to_sort; uri = Hashtbl.create 211 } in
319 let ast = ast_of_acic1 ~output_type term_info annterm in
320 debug_print (lazy ("ast_of_acic -> " ^ CicNotationPp.pp_term ast));
328 let add_interpretation dsc (symbol, args) appl_pattern =
329 let id = fresh_id () in
330 Hashtbl.add !level2_patterns32 id (dsc, symbol, args, appl_pattern);
331 pattern32_matrix := (true, appl_pattern, id) :: !pattern32_matrix;
332 load_patterns32 !pattern32_matrix;
334 let ids = Hashtbl.find !interpretations symbol in
336 with Not_found -> Hashtbl.add !interpretations symbol (ref [id]));
339 let get_all_interpretations () =
341 (function (_, _, id) ->
344 Hashtbl.find !level2_patterns32 id
345 with Not_found -> assert false
350 let get_active_interpretations () =
351 HExtlib.filter_map (function (true, _, id) -> Some id | _ -> None)
354 let set_active_interpretations ids =
355 let pattern32_matrix' =
358 | (_, ap, id) when List.mem id ids -> (true, ap, id)
359 | (_, ap, id) -> (false, ap, id))
362 pattern32_matrix := pattern32_matrix';
363 load_patterns32 !pattern32_matrix
365 exception Interpretation_not_found
367 let lookup_interpretations symbol =
370 (List.sort Pervasives.compare
373 let (dsc, _, args, appl_pattern) =
375 Hashtbl.find !level2_patterns32 id
376 with Not_found -> assert false
378 dsc, args, appl_pattern)
379 !(Hashtbl.find !interpretations symbol)))
380 with Not_found -> raise Interpretation_not_found
382 let remove_interpretation id =
384 let dsc, symbol, _, _ = Hashtbl.find !level2_patterns32 id in
385 let ids = Hashtbl.find !interpretations symbol in
386 ids := List.filter ((<>) id) !ids;
387 Hashtbl.remove !level2_patterns32 id;
388 with Not_found -> raise Interpretation_not_found);
390 List.filter (fun (_, _, id') -> id <> id') !pattern32_matrix;
391 load_patterns32 !pattern32_matrix
393 let _ = load_patterns32 []
395 let instantiate_appl_pattern
396 ~mk_appl ~mk_implicit ~term_of_uri env appl_pattern
399 try List.assoc name env
401 prerr_endline (sprintf "Name %s not found" name);
404 let rec aux = function
405 | Ast.UriPattern uri -> term_of_uri uri
406 | Ast.ImplicitPattern -> mk_implicit false
407 | Ast.VarPattern name -> lookup name
408 | Ast.ApplPattern terms -> mk_appl (List.map aux terms)
413 let nmap_sequent0 status ~idref ~metasenv ~subst (i,(n,context,ty)) =
414 let module K = Content in
416 nast_of_cic1 status ~idref ~output_type:`Term ~metasenv ~subst in
419 (fun item (res,context) ->
421 | name,NCic.Decl t ->
423 (* We should call build_decl_item, but we have not computed *)
424 (* the inner-types ==> we always produce a declaration *)
426 { K.dec_name = (Some name);
428 K.dec_inductive = false;
430 K.dec_type = nast_of_cic ~context t
431 })::res,item::context
432 | name,NCic.Def (t,ty) ->
434 (* We should call build_def_item, but we have not computed *)
435 (* the inner-types ==> we always produce a declaration *)
437 { K.def_name = (Some name);
440 K.def_term = nast_of_cic ~context t;
441 K.def_type = nast_of_cic ~context ty
442 })::res,item::context
445 ("-1",i,context',nast_of_cic ~context ty)
448 let nmap_sequent status ~metasenv ~subst conjecture =
449 let module K = Content in
450 let ids_to_refs = Hashtbl.create 211 in
451 let register_ref = Hashtbl.add ids_to_refs in
452 nmap_sequent0 status ~idref:(idref register_ref) ~metasenv ~subst conjecture,
456 let object_prefix = "obj:";;
457 let declaration_prefix = "decl:";;
458 let definition_prefix = "def:";;
459 let inductive_prefix = "ind:";;
460 let joint_prefix = "joint:";;
464 Ast.AttributedTerm (`IdRef id, _) -> id
468 let gen_id prefix seed =
469 let res = prefix ^ string_of_int !seed in
474 let build_def_item seed context metasenv id n t ty =
475 let module K = Content in
478 let sort = Hashtbl.find ids_to_inner_sorts id in
481 (acic2content seed context metasenv ?name:(name_of n) ~ids_to_inner_sorts ~ids_to_inner_types t)
487 { K.def_name = Some n;
488 K.def_id = gen_id definition_prefix seed;
495 Not_found -> assert false
498 let build_decl_item seed id n s =
499 let module K = Content in
503 Some (Hashtbl.find ids_to_inner_sorts (Cic2acic.source_id_of_id id))
504 with Not_found -> None
509 { K.dec_name = name_of n;
510 K.dec_id = gen_id declaration_prefix seed;
511 K.dec_inductive = false;
518 { K.dec_name = Some n;
519 K.dec_id = gen_id declaration_prefix seed;
520 K.dec_inductive = false;
526 let nmap_obj status (uri,_,metasenv,subst,kind) =
527 let module K = Content in
528 let ids_to_refs = Hashtbl.create 211 in
529 let register_ref = Hashtbl.add ids_to_refs in
530 let idref = idref register_ref in
532 nast_of_cic1 status ~idref ~output_type:`Term ~metasenv ~subst in
537 | _ -> (*Some (List.map (map_conjectures seed) metasenv)*)
538 (*CSC: used to be the previous line, that uses seed *)
539 Some (List.map (nmap_sequent0 status ~idref ~metasenv ~subst) metasenv)
541 let build_constructors seed l =
544 let ty = nast_of_cic ~context:[] ty in
545 { K.dec_name = Some n;
546 K.dec_id = gen_id declaration_prefix seed;
547 K.dec_inductive = false;
552 let build_inductive b seed =
554 let ty = nast_of_cic ~context:[] ty in
556 { K.inductive_id = gen_id inductive_prefix seed;
557 K.inductive_name = n;
558 K.inductive_kind = b;
559 K.inductive_type = ty;
560 K.inductive_constructors = build_constructors seed cl
563 let build_fixpoint b seed =
565 let t = nast_of_cic ~context:[] t in
566 let ty = nast_of_cic ~context:[] ty in
568 { K.def_id = gen_id inductive_prefix seed;
577 | NCic.Fixpoint (is_rec, ifl, _) ->
578 (gen_id object_prefix seed, [], conjectures,
580 { K.joint_id = gen_id joint_prefix seed;
583 `Recursive (List.map (fun (_,_,i,_,_) -> i) ifl)
585 K.joint_defs = List.map (build_fixpoint is_rec seed) ifl
587 | NCic.Inductive (is_ind, lno, itl, _) ->
588 (gen_id object_prefix seed, [], conjectures,
590 { K.joint_id = gen_id joint_prefix seed;
592 if is_ind then `Inductive lno else `CoInductive lno;
593 K.joint_defs = List.map (build_inductive is_ind seed) itl
595 | NCic.Constant (_,_,Some bo,ty,_) ->
596 let ty = nast_of_cic ~context:[] ty in
597 let bo = nast_of_cic ~context:[] bo in
598 (gen_id object_prefix seed, [], conjectures,
600 build_def_item seed [] [] (get_id bo) (NUri.name_of_uri uri) bo ty))
601 | NCic.Constant (_,_,None,ty,_) ->
602 let ty = nast_of_cic ~context:[] ty in
603 (gen_id object_prefix seed, [], conjectures,
605 (*CSC: ??? get_id ty here used to be the id of the axiom! *)
606 build_decl_item seed (get_id ty) (NUri.name_of_uri uri) ty))