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 (******************************************************************************)
30 (* Claudio Sacerdoti Coen <sacerdot@cs.unibo.it> *)
33 (* Missing description *)
35 (******************************************************************************)
47 let soften_classification =
49 Backbone _ -> InConclusion
50 | Branch _ -> InHypothesis
56 Backbone n -> `MainConclusion (Some n)
57 | Branch n -> `MainHypothesis (Some n)
63 Backbone n -> `MainConclusion (Some n)
64 | Branch n -> `MainHypothesis (Some n)
65 | InConclusion -> `InConclusion
66 | InHypothesis -> `InHypothesis
70 let (@@) (l1,l2,l3) (l1',l2',l3') =
72 List.fold_left (fun i t -> if List.mem t l2 then i else t::i) l2 l1
74 merge l1 l1', merge l2 l2', merge l3 l3'
77 let get_constraints term =
78 let module U = UriManager in
80 let rec process_type_aux kind =
82 C.Var (uri,expl_named_subst) ->
83 ([!!!kind, UriManager.string_of_uri uri],[],[]) @@
84 (process_type_aux_expl_named_subst kind expl_named_subst)
88 | InHypothesis -> [],[],[]
89 | _ -> [],[!!kind],[])
103 | C.Implicit -> assert false
106 process_type_aux kind te
107 | C.Prod (_,sou,ta) ->
108 let (source_kind,target_kind) =
110 Backbone n -> (Branch 0, Backbone (n+1))
111 | Branch n -> (InHypothesis, Branch (n+1))
114 process_type_aux source_kind sou @@
115 process_type_aux target_kind ta
116 | C.Lambda (_,sou,ta) ->
117 let kind' = soften_classification kind in
118 process_type_aux kind' sou @@
119 process_type_aux kind' ta
120 | C.LetIn (_,te,ta)->
121 let kind' = soften_classification kind in
122 process_type_aux kind' te @@
123 process_type_aux kind ta
125 let kind' = soften_classification kind in
126 process_type_aux kind he @@
127 List.fold_left (fun i t -> i @@ process_type_aux kind' t) ([],[],[]) tl
128 | C.Appl _ -> assert false
130 [!!!kind, UriManager.string_of_uri uri],[],[]
131 | C.MutInd (uri,typeno,expl_named_subst) ->
132 ([!!!kind, U.string_of_uri uri ^ "#xpointer(1/" ^
133 string_of_int (typeno + 1) ^ ")"],[],[]) @@
134 (process_type_aux_expl_named_subst kind expl_named_subst)
135 | C.MutConstruct (uri,typeno,consno,expl_named_subst) ->
136 ([!!!kind, U.string_of_uri uri ^ "#xpointer(1/" ^
137 string_of_int (typeno + 1) ^ "/" ^ string_of_int consno ^ ")"],[],[])
138 @@ (process_type_aux_expl_named_subst kind expl_named_subst)
139 | C.MutCase (_,_,_,term,patterns) ->
140 (* outtype ignored *)
141 let kind' = soften_classification kind in
142 process_type_aux kind' term @@
143 List.fold_left (fun i t -> i @@ process_type_aux kind' t)
146 let kind' = soften_classification kind in
148 (fun i (_,_,bo,ty) ->
150 process_type_aux kind' bo @@
151 process_type_aux kind' ty
153 | C.CoFix (_,funs) ->
154 let kind' = soften_classification kind in
158 process_type_aux kind' bo @@
159 process_type_aux kind' ty
161 and process_type_aux_expl_named_subst kind =
163 (fun i (_,t) -> i @@ (process_type_aux (soften_classification kind) t))
166 let obj_constraints,rel_constraints,sort_constraints =
167 process_type_aux (Backbone 0) (CicMiniReduction.letin_nf term)
169 (obj_constraints,rel_constraints,sort_constraints)
172 (*CSC: Debugging only *)
173 let get_constraints term =
174 let res = get_constraints term in
175 let (objs,rels,sorts) = res in
177 U.text_of_position p ^ " " ^ U.text_of_depth p "NULL"
179 prerr_endline "Constraints on objs:" ;
181 (function (p, u) -> prerr_endline (text_of_pos p ^ " " ^ u)) objs ;
182 prerr_endline "Constraints on Rels:" ;
183 List.iter (function p -> prerr_endline (text_of_pos (p:>T.full_position))) rels ;
184 prerr_endline "Constraints on Sorts:" ;
186 (function (p, s) -> prerr_endline (text_of_pos (p:>T.full_position) ^ " " ^ U.text_of_sort s)
192 [T.MainHypothesis; T.InHypothesis; T.MainConclusion; T.InConclusion]