Moved functions contained in this file to HOL.ML, datatype.ML,
simpdata.ML and cladata.ML.

--- a/src/HOL/thy_data.ML	Wed Aug 06 00:47:20 1997 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,115 +0,0 @@
-(*  Title:      HOL/thy_data.ML
-    ID:         $Id$
-    Author:     Carsten Clasohm
-    Copyright   1995 TU Muenchen
-
-Definitions that have to be reread after init_thy_reader has been invoked
-*)
-
-fun simpset_of tname =
-  case get_thydata tname "simpset" of
-      None => empty_ss
-    | Some (SS_DATA ss) => ss;
-
-fun claset_of tname =
-  case get_thydata tname "claset" of
-      None => empty_cs
-    | Some (CS_DATA cs) => cs;
-
-
-(** Information about datatypes **)
-
-(* Retrieve information for a specific datatype *)
-fun datatype_info thy tname =
-  case get_thydata (thyname_of_sign (sign_of thy)) "datatypes" of
-      None => None
-    | Some (DT_DATA ds) => assoc (ds, tname);
-
-fun match_info thy tname =
-  case datatype_info thy tname of
-      Some {case_const, constructors, ...} =>
-        {case_const=case_const, constructors=constructors}
-    | None => error ("No datatype \"" ^ tname ^ "\" defined in this theory.");
-
-fun induct_info thy tname =
-  case datatype_info thy tname of
-      Some {constructors, nchotomy, ...} =>
-        {constructors=constructors, nchotomy=nchotomy}
-    | None => error ("No datatype \"" ^ tname ^ "\" defined in this theory.");
-
-
-(* Retrieve information for all datatypes defined in a theory and its
-   ancestors *)
-fun extract_info thy =
-  let val (congs, rewrites) =
-        case get_thydata (thyname_of_sign (sign_of thy)) "datatypes" of
-            None => ([], [])
-          | Some (DT_DATA ds) =>
-              let val info = map snd ds
-              in (map #case_cong info, flat (map #case_rewrites info)) end;
-  in {case_congs = congs, case_rewrites = rewrites} end;
-
-local
-
-fun find_tname var Bi =
-  let val frees = map dest_Free (term_frees Bi)
-      val params = Logic.strip_params Bi;
-  in case assoc (frees@params, var) of
-       None => error("No such variable in subgoal: " ^ quote var)
-     | Some(Type(tn,_)) => tn
-     | _ => error("Cannot induct on type of " ^ quote var)
-  end;
-
-fun get_dt_info sign tn =
-      case get_thydata (thyname_of_sign sign) "datatypes" of
-        None => error ("No such datatype: " ^ quote tn)
-      | Some (DT_DATA ds) =>
-          case assoc (ds, tn) of
-            Some info => info
-          | None => error ("Not a datatype: " ^ quote tn)
-
-fun infer_tname state sign i aterm =
-let val (_, _, Bi, _) = dest_state (state, i)
-    val params = Logic.strip_params Bi	        (*params of subgoal i*)
-    val params = rev(rename_wrt_term Bi params) (*as they are printed*)
-    val (types,sorts) = types_sorts state
-    fun types'(a,~1) = (case assoc(params,a) of None => types(a,~1) | sm => sm)
-      | types'(ixn) = types ixn;
-    val (ct,_) = read_def_cterm (sign,types',sorts) [] false
-                                (aterm,TVar(("",0),[]));
-in case #T(rep_cterm ct) of
-     Type(tn,_) => tn
-   | _ => error("Cannot induct on type of " ^ quote aterm)
-end;
-
-in
-
-(* generic induction tactic for datatypes *)
-fun induct_tac var i state = state |>
-        let val (_, _, Bi, _) = dest_state (state, i)
-            val sign = #sign(rep_thm state)
-            val tn = find_tname var Bi
-            val ind_tac = #induct_tac(get_dt_info sign tn)
-        in ind_tac var i end;
-
-(* generic exhaustion tactic for datatypes *)
-fun exhaust_tac aterm i state = state |>
-        let val sign = #sign(rep_thm state)
-            val tn = infer_tname state sign i aterm
-            val exh_tac = #exhaust_tac(get_dt_info sign tn)
-        in exh_tac aterm i end;
-
-end;
-
-(*Must be redefined in order to refer to the new instance of bind_thm
-  created by init_thy_reader.*)		(* FIXME: move *)
-
-fun qed_spec_mp name =
-  let val thm = normalize_thm [RSspec,RSmp] (result())
-  in bind_thm(name, thm) end;
-
-fun qed_goal_spec_mp name thy s p = 
-	bind_thm (name, normalize_thm [RSspec,RSmp] (prove_goal thy s p));
-
-fun qed_goalw_spec_mp name thy defs s p = 
-	bind_thm (name, normalize_thm [RSspec,RSmp] (prove_goalw thy defs s p));