obsolete (see context.ML);

--- a/src/Pure/theory_data.ML	Fri Jun 17 17:40:51 2005 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,57 +0,0 @@
-(*  Title:      Pure/theory_data.ML
-    ID:         $Id$
-    Author:     Markus Wenzel, TU Muenchen
-
-Type-safe interface for theory data.
-*)
-
-signature THEORY_DATA_ARGS =
-sig
-  val name: string
-  type T
-  val empty: T
-  val copy: T -> T
-  val prep_ext: T -> T
-  val merge: T * T -> T
-  val print: Sign.sg -> T -> unit
-end;
-
-signature THEORY_DATA =
-sig
-  type T
-  val init: theory -> theory
-  val print: theory -> unit
-  val get_sg: Sign.sg -> T
-  val get: theory -> T
-  val put: T -> theory -> theory
-  val map: (T -> T) -> theory -> theory
-end;
-
-functor TheoryDataFun(Args: THEORY_DATA_ARGS): THEORY_DATA =
-struct
-
-(*object kind kept private!*)
-val kind = Object.kind Args.name;
-
-type T = Args.T;
-exception Data of T;
-
-val init =
-  Theory.init_data kind
-    (Data Args.empty,
-      fn (Data x) => Data (Args.copy x),
-      fn (Data x) => Data (Args.prep_ext x),
-      fn (Data x1, Data x2) => Data (Args.merge (x1, x2)),
-      fn sg => fn (Data x) => Args.print sg x);
-
-val print = Theory.print_data kind;
-val get_sg = Sign.get_data kind (fn Data x => x);
-val get = get_sg o Theory.sign_of;
-val put = Theory.put_data kind Data;
-fun map f thy = put (f (get thy)) thy;
-
-end;
-
-(*hide private data access functions*)
-structure Sign: SIGN = Sign;
-structure Theory: THEORY = Theory;