Stuff moved from old Matita.

[helm.git] / matita / components / library / librarySync.mli

diff --git a/matita/components/library/librarySync.mli b/matita/components/library/librarySync.mli
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+(* Copyright (C) 2004-2005, HELM Team.
+ * 
+ * This file is part of HELM, an Hypertextual, Electronic
+ * Library of Mathematics, developed at the Computer Science
+ * Department, University of Bologna, Italy.
+ * 
+ * HELM is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ * 
+ * HELM is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with HELM; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
+ * MA  02111-1307, USA.
+ * 
+ * For details, see the HELM World-Wide-Web page,
+ * http://helm.cs.unibo.it/
+ *)
+
+exception AlreadyDefined of UriManager.uri
+
+type coercion_decl = 
+  UriManager.uri -> int (* arity *) ->
+   int (* saturations *) -> string (* baseuri *) ->
+    UriManager.uri list (* lemmas (new objs) *)
+
+(* the add_single_obj fun passed to the callback can raise AlreadyDefined *)
+val add_object_declaration_hook :
+  (add_obj:(UriManager.uri -> Cic.obj -> UriManager.uri list) -> 
+   add_coercion:coercion_decl ->
+    UriManager.uri -> Cic.obj -> UriManager.uri list) -> unit
+
+(* adds an object to the library together with all auxiliary lemmas on it *)
+(* (e.g. elimination principles, projections, etc.)                       *)
+(* it returns the list of the uris of the auxiliary lemmas generated      *)
+val add_obj: 
+  UriManager.uri -> Cic.obj -> pack_coercion_obj:(Cic.obj -> Cic.obj) -> 
+    UriManager.uri list
+
+(* removes an object (does not remove its associated lemmas) *)
+val remove_obj: UriManager.uri -> unit
+
+(* Informs the library that [uri] is a coercion.                         *)
+(* This can generate some composite coercions that, if [add_composites]  *)
+(* is true are added to the library.                                     *)
+(* The list of added objects is returned.                                *)
+val add_coercion: 
+  add_composites:bool -> pack_coercion_obj:(Cic.obj -> Cic.obj) -> coercion_decl
+
+(* these just push/pop the coercions database, since the library is not
+ * pushable/poppable *)
+val push: unit -> unit
+val pop: unit -> unit