1 (* Copyright (C) 2004-2005, 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.
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://helm.cs.unibo.it/
29 type interpretation_id = pattern_id
30 type pretty_printer_id = pattern_id
33 { sort: (Cic.id, CicNotationPt.sort_kind) Hashtbl.t;
34 uri: (Cic.id, string) Hashtbl.t;
37 let warning s = prerr_endline ("CicNotation WARNING: " ^ s)
40 let o,_ = CicEnvironment.get_obj CicUniv.empty_ugraph uri in
42 | Cic.InductiveDefinition (l,_,_,_) -> l
45 let name_of_inductive_type uri i =
46 let types = get_types uri in
47 let (name, _, _, _) = try List.nth types i with Not_found -> assert false in
50 (* returns <name, type> pairs *)
51 let constructors_of_inductive_type uri i =
52 let types = get_types uri in
53 let (_, _, _, constructors) =
54 try List.nth types i with Not_found -> assert false
58 (* returns name only *)
59 let constructor_of_inductive_type uri i j =
61 fst (List.nth (constructors_of_inductive_type uri i) (j-1))
62 with Not_found -> assert false)
64 module Ast = CicNotationPt
66 let string_of_name = function
68 | Cic.Anonymous -> "_"
70 let ident_of_name n = Ast.Ident (string_of_name n, None)
72 let idref id t = Ast.AttributedTerm (`IdRef id, t)
75 prerr_endline "pp_ast0";
76 let rec aux t = CicNotationUtil.visit_ast ~special_k k t
77 and special_k = function
78 | Ast.AttributedTerm (attrs, t) -> Ast.AttributedTerm (attrs, aux t)
83 let ast_of_acic0 term_info acic k =
84 (* prerr_endline "ast_of_acic0"; *)
85 let k = k term_info in
86 let register_uri id uri = Hashtbl.add term_info.uri id uri in
89 Hashtbl.find term_info.sort id
90 with Not_found -> assert false
92 let aux_substs substs =
95 (fun (uri, annterm) -> (UriManager.name_of_uri uri, k annterm))
98 let aux_context context =
102 | Some annterm -> Some (k annterm))
106 | Cic.ARel (id,_,_,b) -> idref id (Ast.Ident (b, None))
107 | Cic.AVar (id,uri,substs) ->
108 register_uri id (UriManager.string_of_uri uri);
109 idref id (Ast.Ident (UriManager.name_of_uri uri, aux_substs substs))
110 | Cic.AMeta (id,n,l) -> idref id (Ast.Meta (n, aux_context l))
111 | Cic.ASort (id,Cic.Prop) -> idref id (Ast.Sort `Prop)
112 | Cic.ASort (id,Cic.Set) -> idref id (Ast.Sort `Set)
113 | Cic.ASort (id,Cic.Type _) -> idref id (Ast.Sort `Type)
114 | Cic.ASort (id,Cic.CProp) -> idref id (Ast.Sort `CProp)
115 | Cic.AImplicit _ -> assert false
116 | Cic.AProd (id,n,s,t) ->
118 match sort_of_id id with
119 | `Set | `Type -> `Pi
120 | `Prop | `CProp -> `Forall
122 idref id (Ast.Binder (binder_kind, (ident_of_name n, Some (k s)), k t))
123 | Cic.ACast (id,v,t) ->
124 idref id (Ast.Appl [idref id (Ast.Symbol ("cast", 0)); k v; k t])
125 | Cic.ALambda (id,n,s,t) ->
126 idref id (Ast.Binder (`Lambda, (ident_of_name n, Some (k s)), k t))
127 | Cic.ALetIn (id,n,s,t) ->
128 idref id (Ast.LetIn ((ident_of_name n, None), k s, k t))
129 | Cic.AAppl (aid,args) -> idref aid (Ast.Appl (List.map k args))
130 | Cic.AConst (id,uri,substs) ->
131 register_uri id (UriManager.string_of_uri uri);
132 idref id (Ast.Ident (UriManager.name_of_uri uri, aux_substs substs))
133 | Cic.AMutInd (id,uri,i,substs) as t ->
134 let name = name_of_inductive_type uri i in
135 let uri_str = UriManager.string_of_uri uri in
137 uri_str ^ "#xpointer(1/" ^ (string_of_int (i + 1)) ^ ")"
139 register_uri id puri_str;
140 idref id (Ast.Ident (name, aux_substs substs))
141 | Cic.AMutConstruct (id,uri,i,j,substs) ->
142 let name = constructor_of_inductive_type uri i j in
143 let uri_str = UriManager.string_of_uri uri in
144 let puri_str = sprintf "%s#xpointer(1/%d/%d)" uri_str (i + 1) j in
145 register_uri id puri_str;
146 idref id (Ast.Ident (name, aux_substs substs))
147 | Cic.AMutCase (id,uri,typeno,ty,te,patterns) ->
148 let name = name_of_inductive_type uri typeno in
149 let constructors = constructors_of_inductive_type uri typeno in
150 let rec eat_branch ty pat =
152 | Cic.Prod (_, _, t), Cic.ALambda (_, name, s, t') ->
153 let (cv, rhs) = eat_branch t t' in
154 (ident_of_name name, Some (k s)) :: cv, rhs
159 (fun (name, ty) pat ->
160 let (capture_variables, rhs) = eat_branch ty pat in
161 ((name, capture_variables), rhs))
162 constructors patterns
164 idref id (Ast.Case (k te, Some name, Some (k ty), patterns))
165 | Cic.AFix (id, no, funs) ->
168 (fun (_, n, decr_idx, ty, bo) ->
169 ((Ast.Ident (n, None), Some (k ty)), k bo, decr_idx))
174 (match List.nth defs no with
175 | (Ast.Ident (n, _), _), _, _ when n <> "_" -> n
177 with Not_found -> assert false
179 idref id (Ast.LetRec (`Inductive, defs, Ast.Ident (name, None)))
180 | Cic.ACoFix (id, no, funs) ->
183 (fun (_, n, ty, bo) -> ((Ast.Ident (n, None), Some (k ty)), k bo, 0))
188 (match List.nth defs no with
189 | (Ast.Ident (n, _), _), _, _ when n <> "_" -> n
191 with Not_found -> assert false
193 idref id (Ast.LetRec (`CoInductive, defs, Ast.Ident (name, None)))
197 (* persistent state *)
199 let level1_patterns21 = Hashtbl.create 211
200 let level2_patterns32 = Hashtbl.create 211
202 let (compiled21: (CicNotationPt.term -> (CicNotationEnv.t * int) option)
205 let (compiled32: (Cic.annterm -> ((string * Cic.annterm) list * int) option)
209 let pattern21_matrix = ref []
210 let pattern32_matrix = ref []
212 let get_compiled21 () =
213 match !compiled21 with
214 | None -> assert false
216 let get_compiled32 () =
217 match !compiled32 with
218 | None -> assert false
221 let set_compiled21 f = compiled21 := Some f
222 let set_compiled32 f = compiled32 := Some f
224 let instantiate21 env precedence associativity l1 =
225 prerr_endline "instantiate21";
226 let rec subst_singleton env t =
227 CicNotationUtil.boxify (subst env t)
228 and subst env = function
229 | Ast.AttributedTerm (_, t) -> subst env t
230 | Ast.Variable var ->
231 let name, expected_ty = CicNotationEnv.declaration_of_var var in
235 with Not_found -> assert false
237 assert (CicNotationEnv.well_typed ty value); (* INVARIANT *)
238 (* following assertion should be a conditional that makes this
239 * instantiation fail *)
240 assert (CicNotationEnv.well_typed expected_ty value);
241 [ CicNotationEnv.term_of_value value ]
242 | Ast.Magic m -> subst_magic env m
243 | Ast.Literal _ as t -> [ t ]
244 | Ast.Layout l -> [ Ast.Layout (subst_layout env l) ]
245 | t -> [ CicNotationUtil.visit_ast (subst_singleton env) t ]
246 and subst_magic env = function
247 | Ast.List0 (p, sep_opt)
248 | Ast.List1 (p, sep_opt) ->
249 let rec_decls = CicNotationEnv.declarations_of_term p in
251 List.map (fun (n, _) -> CicNotationEnv.lookup_list env n) rec_decls
253 let values = CicNotationUtil.ncombine rec_values in
257 | Some l -> [ CicNotationPt.Literal l ]
259 let rec instantiate_list acc = function
262 let env = CicNotationEnv.combine rec_decls value_set in
264 ((CicNotationUtil.boxify (subst env p)) :: acc) []
266 let env = CicNotationEnv.combine rec_decls value_set in
268 ((CicNotationUtil.boxify (subst env p @ sep)) :: acc) tl
270 instantiate_list [] values
272 let opt_decls = CicNotationEnv.declarations_of_term p in
274 let rec build_env = function
276 | (name, ty) :: tl ->
277 (* assumption: if one of the value is None then all are *)
278 (match CicNotationEnv.lookup_opt env name with
280 | Some v -> (name, (ty, v)) :: build_env tl)
282 try build_env opt_decls with Exit -> []
289 | _ -> assert false (* impossible *)
290 and subst_layout env = function
291 | Ast.Box (kind, tl) -> Ast.Box (kind, List.concat (List.map (subst env) tl))
292 | l -> CicNotationUtil.visit_layout (subst_singleton env) l
294 subst_singleton env l1
296 let rec pp_ast1 term =
297 let rec pp_value = function
298 | CicNotationEnv.NumValue _ as v -> v
299 | CicNotationEnv.StringValue _ as v -> v
300 | CicNotationEnv.TermValue t -> CicNotationEnv.TermValue (pp_ast1 t)
301 | CicNotationEnv.OptValue None as v -> v
302 | CicNotationEnv.OptValue (Some v) ->
303 CicNotationEnv.OptValue (Some (pp_value v))
304 | CicNotationEnv.ListValue vl ->
305 CicNotationEnv.ListValue (List.map pp_value vl)
307 let ast_env_of_env env =
308 List.map (fun (var, (ty, value)) -> (var, (ty, pp_value value))) env
310 match (get_compiled21 ()) term with
311 | None -> pp_ast0 term pp_ast1
313 let precedence, associativity, l1 =
315 Hashtbl.find level1_patterns21 pid
316 with Not_found -> assert false
318 instantiate21 (ast_env_of_env env) precedence associativity l1
320 let instantiate32 term_info env symbol args =
321 let rec instantiate_arg = function
322 | Ast.IdentArg (n, name) ->
323 let t = (try List.assoc name env with Not_found -> assert false) in
324 let rec count_lambda = function
325 | Ast.Binder (`Lambda, _, body) -> 1 + count_lambda body
328 let rec add_lambda t n =
330 let name = CicNotationUtil.fresh_name () in
331 Ast.Binder (`Lambda, (Ast.Ident (name, None), None),
332 Ast.Appl [add_lambda t (n - 1); Ast.Ident (name, None)])
336 add_lambda t (n - count_lambda t)
338 let args' = List.map instantiate_arg args in
339 Ast.Appl (Ast.Symbol (symbol, 0) :: args')
341 let rec ast_of_acic1 term_info annterm =
342 match (get_compiled32 ()) annterm with
343 | None -> ast_of_acic0 term_info annterm ast_of_acic1
346 List.map (fun (name, term) -> (name, ast_of_acic1 term_info term)) env
350 Hashtbl.find level2_patterns32 pid
351 with Not_found -> assert false
353 instantiate32 term_info env' symbol args
355 let load_patterns32 t =
356 set_compiled32 (CicNotationMatcher.Matcher32.compiler t)
358 let load_patterns21 t =
359 set_compiled21 (CicNotationMatcher.Matcher21.compiler t)
361 let ast_of_acic id_to_sort annterm =
362 let term_info = { sort = id_to_sort; uri = Hashtbl.create 211 } in
363 let ast = ast_of_acic1 term_info annterm in
366 let pp_ast term = pp_ast1 term
369 let counter = ref ~-1 in
374 let add_interpretation (symbol, args) appl_pattern =
375 let id = fresh_id () in
376 Hashtbl.add level2_patterns32 id (symbol, args);
377 pattern32_matrix := (appl_pattern, id) :: !pattern32_matrix;
378 load_patterns32 !pattern32_matrix;
381 let add_pretty_printer ?precedence ?associativity l2 l1 =
382 let id = fresh_id () in
383 let l2' = CicNotationUtil.strip_attributes l2 in
384 Hashtbl.add level1_patterns21 id (precedence, associativity, l1);
385 pattern21_matrix := (l2', id) :: !pattern21_matrix;
386 load_patterns21 !pattern21_matrix;
389 exception Interpretation_not_found
390 exception Pretty_printer_not_found
392 let remove_interpretation id =
394 Hashtbl.remove level2_patterns32 id;
395 with Not_found -> raise Interpretation_not_found);
396 pattern32_matrix := List.filter (fun (_, id') -> id <> id') !pattern32_matrix;
397 load_patterns32 !pattern32_matrix
399 let remove_pretty_printer id =
401 Hashtbl.remove level1_patterns21 id;
402 with Not_found -> raise Pretty_printer_not_found);
403 pattern21_matrix := List.filter (fun (_, id') -> id <> id') !pattern21_matrix;
404 load_patterns21 !pattern21_matrix