src/Pure/Isar/class.ML
author wenzelm
Wed Oct 17 13:55:35 2007 +0200 (2007-10-17)
changeset 25066 344b9611c150
parent 25062 af5ef0d4d655
child 25083 765528b4b419
permissions -rw-r--r--
removed obsolete fork_mixfix (back to theory_target.ML);
haftmann@24218
     1
(*  Title:      Pure/Isar/class.ML
haftmann@24218
     2
    ID:         $Id$
haftmann@24218
     3
    Author:     Florian Haftmann, TU Muenchen
haftmann@24218
     4
haftmann@24218
     5
Type classes derived from primitive axclasses and locales.
haftmann@24218
     6
*)
haftmann@24218
     7
haftmann@24218
     8
signature CLASS =
haftmann@24218
     9
sig
haftmann@24218
    10
  val axclass_cmd: bstring * xstring list
haftmann@24589
    11
    -> ((bstring * Attrib.src list) * string list) list
haftmann@24589
    12
    -> theory -> class * theory
haftmann@24589
    13
  val classrel_cmd: xstring * xstring -> theory -> Proof.state
haftmann@24914
    14
haftmann@25002
    15
  val class: bstring -> class list -> Element.context_i Locale.element list
haftmann@24218
    16
    -> string list -> theory -> string * Proof.context
haftmann@25002
    17
  val class_cmd: bstring -> xstring list -> Element.context Locale.element list
haftmann@24589
    18
    -> xstring list -> theory -> string * Proof.context
wenzelm@25060
    19
  val init: class -> Proof.context -> Proof.context
haftmann@25062
    20
  val add_const_in_class: string -> (string * mixfix) * term
haftmann@25038
    21
    -> theory -> string * theory
haftmann@25062
    22
  val add_abbrev_in_class: string -> Syntax.mode -> (string * mixfix) * term
haftmann@25038
    23
    -> theory -> string * theory
haftmann@25002
    24
  val remove_constraint: class -> string -> Proof.context -> Proof.context
haftmann@25038
    25
  val is_class: theory -> class -> bool
haftmann@25002
    26
  val these_params: theory -> sort -> (string * (string * typ)) list
haftmann@24589
    27
  val intro_classes_tac: thm list -> tactic
haftmann@24589
    28
  val default_intro_classes_tac: thm list -> tactic
haftmann@24589
    29
  val print_classes: theory -> unit
haftmann@25002
    30
  val uncheck: bool ref
haftmann@24423
    31
haftmann@24589
    32
  val instance_arity: (theory -> theory) -> arity list -> theory -> Proof.state
haftmann@24589
    33
  val instance: arity list -> ((bstring * Attrib.src list) * term) list
haftmann@24423
    34
    -> (thm list -> theory -> theory)
haftmann@24218
    35
    -> theory -> Proof.state
haftmann@24589
    36
  val instance_cmd: (bstring * xstring list * xstring) list
haftmann@24589
    37
    -> ((bstring * Attrib.src list) * xstring) list
haftmann@24423
    38
    -> (thm list -> theory -> theory)
haftmann@24218
    39
    -> theory -> Proof.state
haftmann@24589
    40
  val prove_instance: tactic -> arity list
haftmann@24218
    41
    -> ((bstring * Attrib.src list) * term) list
haftmann@24423
    42
    -> theory -> thm list * theory
haftmann@24423
    43
  val unoverload: theory -> conv
haftmann@24423
    44
  val overload: theory -> conv
haftmann@24423
    45
  val unoverload_const: theory -> string * typ -> string
haftmann@24423
    46
  val inst_const: theory -> string * string -> string
haftmann@24423
    47
  val param_const: theory -> string -> (string * string) option
haftmann@24218
    48
end;
haftmann@24218
    49
haftmann@24218
    50
structure Class : CLASS =
haftmann@24218
    51
struct
haftmann@24218
    52
haftmann@24218
    53
(** auxiliary **)
haftmann@24218
    54
haftmann@25062
    55
val classN = "class";
haftmann@25062
    56
val introN = "intro";
haftmann@25062
    57
haftmann@25002
    58
fun prove_interpretation tac prfx_atts expr inst =
haftmann@25002
    59
  Locale.interpretation_i I prfx_atts expr inst
haftmann@24589
    60
  #> Proof.global_terminal_proof
haftmann@24589
    61
      (Method.Basic (K (Method.SIMPLE_METHOD tac), Position.none), NONE)
haftmann@24589
    62
  #> ProofContext.theory_of;
haftmann@24589
    63
wenzelm@25020
    64
fun OF_LAST thm1 thm2 = thm1 RSN (Thm.nprems_of thm2, thm2);
haftmann@24589
    65
haftmann@24589
    66
fun strip_all_ofclass thy sort =
haftmann@24589
    67
  let
wenzelm@24847
    68
    val typ = TVar ((Name.aT, 0), sort);
haftmann@24589
    69
    fun prem_inclass t =
haftmann@24589
    70
      case Logic.strip_imp_prems t
haftmann@24589
    71
       of ofcls :: _ => try Logic.dest_inclass ofcls
haftmann@24589
    72
        | [] => NONE;
haftmann@24589
    73
    fun strip_ofclass class thm =
haftmann@24589
    74
      thm OF (fst o AxClass.of_sort thy (typ, [class])) AxClass.cache;
haftmann@24589
    75
    fun strip thm = case (prem_inclass o Thm.prop_of) thm
haftmann@24589
    76
     of SOME (_, class) => thm |> strip_ofclass class |> strip
haftmann@24589
    77
      | NONE => thm;
haftmann@24589
    78
  in strip end;
haftmann@24589
    79
haftmann@25038
    80
fun get_remove_global_constraint c thy =
haftmann@25038
    81
  let
haftmann@25038
    82
    val ty = Sign.the_const_constraint thy c;
haftmann@25038
    83
  in
haftmann@25038
    84
    thy
haftmann@25038
    85
    |> Sign.add_const_constraint (c, NONE)
haftmann@25038
    86
    |> pair (c, Logic.unvarifyT ty)
haftmann@25038
    87
  end;
haftmann@25038
    88
haftmann@24589
    89
haftmann@24589
    90
(** axclass command **)
haftmann@24589
    91
haftmann@24218
    92
fun axclass_cmd (class, raw_superclasses) raw_specs thy =
haftmann@24218
    93
  let
haftmann@24218
    94
    val ctxt = ProofContext.init thy;
haftmann@24218
    95
    val superclasses = map (Sign.read_class thy) raw_superclasses;
haftmann@24589
    96
    val name_atts = map ((apsnd o map) (Attrib.attribute thy) o fst)
haftmann@24589
    97
      raw_specs;
haftmann@24589
    98
    val axiomss = ProofContext.read_propp (ctxt, map (map (rpair []) o snd)
haftmann@24589
    99
          raw_specs)
haftmann@24218
   100
      |> snd
haftmann@24218
   101
      |> (map o map) fst;
haftmann@24589
   102
  in
haftmann@24589
   103
    AxClass.define_class (class, superclasses) []
haftmann@24589
   104
      (name_atts ~~ axiomss) thy
haftmann@24589
   105
  end;
haftmann@24218
   106
haftmann@24218
   107
local
haftmann@24218
   108
haftmann@24218
   109
fun gen_instance mk_prop add_thm after_qed insts thy =
haftmann@24218
   110
  let
haftmann@24218
   111
    fun after_qed' results =
haftmann@24218
   112
      ProofContext.theory ((fold o fold) add_thm results #> after_qed);
haftmann@24218
   113
  in
haftmann@24218
   114
    thy
haftmann@24218
   115
    |> ProofContext.init
haftmann@24589
   116
    |> Proof.theorem_i NONE after_qed' ((map (fn t => [(t, [])])
haftmann@24589
   117
        o maps (mk_prop thy)) insts)
haftmann@24218
   118
  end;
haftmann@24218
   119
haftmann@24218
   120
in
haftmann@24218
   121
haftmann@24589
   122
val instance_arity =
haftmann@24218
   123
  gen_instance (Logic.mk_arities oo Sign.cert_arity) AxClass.add_arity;
haftmann@24589
   124
val classrel =
haftmann@24218
   125
  gen_instance (single oo (Logic.mk_classrel oo AxClass.cert_classrel))
haftmann@24218
   126
    AxClass.add_classrel I o single;
haftmann@24589
   127
val classrel_cmd =
haftmann@24589
   128
  gen_instance (single oo (Logic.mk_classrel oo AxClass.read_classrel))
haftmann@24589
   129
    AxClass.add_classrel I o single;
haftmann@24218
   130
haftmann@24218
   131
end; (*local*)
haftmann@24218
   132
haftmann@24218
   133
haftmann@24589
   134
(** explicit constants for overloaded definitions **)
haftmann@24304
   135
haftmann@24304
   136
structure InstData = TheoryDataFun
haftmann@24304
   137
(
haftmann@24423
   138
  type T = (string * thm) Symtab.table Symtab.table * (string * string) Symtab.table;
haftmann@24423
   139
    (*constant name ~> type constructor ~> (constant name, equation),
haftmann@24423
   140
        constant name ~> (constant name, type constructor)*)
haftmann@24423
   141
  val empty = (Symtab.empty, Symtab.empty);
haftmann@24304
   142
  val copy = I;
haftmann@24304
   143
  val extend = I;
haftmann@24423
   144
  fun merge _ ((taba1, tabb1), (taba2, tabb2)) =
haftmann@24423
   145
    (Symtab.join (K (Symtab.merge (K true))) (taba1, taba2),
haftmann@24423
   146
      Symtab.merge (K true) (tabb1, tabb2));
haftmann@24304
   147
);
haftmann@24304
   148
wenzelm@25020
   149
fun inst_thms thy = (Symtab.fold (Symtab.fold (cons o snd o snd) o snd) o fst)
haftmann@24589
   150
    (InstData.get thy) [];
haftmann@24589
   151
fun add_inst (c, tyco) inst = (InstData.map o apfst
haftmann@24589
   152
      o Symtab.map_default (c, Symtab.empty)) (Symtab.update_new (tyco, inst))
haftmann@24423
   153
  #> (InstData.map o apsnd) (Symtab.update_new (fst inst, (c, tyco)));
haftmann@24304
   154
wenzelm@25020
   155
fun unoverload thy = MetaSimplifier.rewrite true (inst_thms thy);
wenzelm@25020
   156
fun overload thy = MetaSimplifier.rewrite true (map Thm.symmetric (inst_thms thy));
haftmann@24304
   157
haftmann@24304
   158
fun inst_const thy (c, tyco) =
haftmann@24423
   159
  (fst o the o Symtab.lookup ((the o Symtab.lookup (fst (InstData.get thy))) c)) tyco;
haftmann@24423
   160
fun unoverload_const thy (c_ty as (c, _)) =
haftmann@24423
   161
  case AxClass.class_of_param thy c
haftmann@24423
   162
   of SOME class => (case Sign.const_typargs thy c_ty
haftmann@24589
   163
       of [Type (tyco, _)] => (case Symtab.lookup
haftmann@24589
   164
           ((the o Symtab.lookup (fst (InstData.get thy))) c) tyco
haftmann@24423
   165
             of SOME (c, _) => c
haftmann@24423
   166
              | NONE => c)
haftmann@24423
   167
        | [_] => c)
haftmann@24423
   168
    | NONE => c;
haftmann@24423
   169
haftmann@24423
   170
val param_const = Symtab.lookup o snd o InstData.get;
haftmann@24304
   171
haftmann@24304
   172
fun add_inst_def (class, tyco) (c, ty) thy =
haftmann@24304
   173
  let
wenzelm@25024
   174
    val tyco_base = Sign.base_name tyco;
wenzelm@25024
   175
    val name_inst = Sign.base_name class ^ "_" ^ tyco_base ^ "_inst";
wenzelm@25024
   176
    val c_inst_base = Sign.base_name c ^ "_" ^ tyco_base;
haftmann@24304
   177
  in
haftmann@24304
   178
    thy
haftmann@24304
   179
    |> Sign.sticky_prefix name_inst
wenzelm@25020
   180
    |> Sign.declare_const [] (c_inst_base, ty, NoSyn)
wenzelm@24968
   181
    |-> (fn const as Const (c_inst, _) =>
wenzelm@24968
   182
      PureThy.add_defs_i false
wenzelm@24968
   183
        [((Thm.def_name c_inst_base, Logic.mk_equals (const, Const (c, ty))), [])]
wenzelm@24968
   184
      #-> (fn [thm] => add_inst (c, tyco) (c_inst, Thm.symmetric thm)))
haftmann@24435
   185
    |> Sign.restore_naming thy
haftmann@24304
   186
  end;
haftmann@24304
   187
haftmann@24304
   188
fun add_inst_def' (class, tyco) (c, ty) thy =
haftmann@24423
   189
  if case Symtab.lookup (fst (InstData.get thy)) c
haftmann@24304
   190
   of NONE => true
haftmann@24304
   191
    | SOME tab => is_none (Symtab.lookup tab tyco)
haftmann@24304
   192
  then add_inst_def (class, tyco) (c, Logic.unvarifyT ty) thy
haftmann@24304
   193
  else thy;
haftmann@24304
   194
haftmann@24304
   195
fun add_def ((class, tyco), ((name, prop), atts)) thy =
haftmann@24304
   196
  let
haftmann@24589
   197
    val ((lhs as Const (c, ty), args), rhs) =
haftmann@24589
   198
      (apfst Term.strip_comb o Logic.dest_equals) prop;
haftmann@24701
   199
    fun (*add_inst' def ([], (Const (c_inst, ty))) =
haftmann@24423
   200
          if forall (fn TFree _ => true | _ => false) (Sign.const_typargs thy (c_inst, ty))
haftmann@24304
   201
          then add_inst (c, tyco) (c_inst, def)
haftmann@24304
   202
          else add_inst_def (class, tyco) (c, ty)
haftmann@24701
   203
      |*) add_inst' _ t = add_inst_def (class, tyco) (c, ty);
haftmann@24304
   204
  in
haftmann@24304
   205
    thy
wenzelm@25020
   206
    |> PureThy.add_defs_i true [((name, prop), map (Attrib.attribute_i thy) atts)]
haftmann@24304
   207
    |-> (fn [def] => add_inst' def (args, rhs) #> pair def)
haftmann@24304
   208
  end;
haftmann@24304
   209
haftmann@24304
   210
haftmann@24589
   211
(** instances with implicit parameter handling **)
haftmann@24218
   212
haftmann@24218
   213
local
haftmann@24218
   214
wenzelm@24707
   215
fun gen_read_def thy prep_att parse_prop ((raw_name, raw_atts), raw_t) =
haftmann@24218
   216
  let
wenzelm@24707
   217
    val ctxt = ProofContext.init thy;
wenzelm@24707
   218
    val t = parse_prop ctxt raw_t |> Syntax.check_prop ctxt;
wenzelm@24981
   219
    val ((c, ty), _) = Sign.cert_def ctxt t;
haftmann@24218
   220
    val atts = map (prep_att thy) raw_atts;
haftmann@24218
   221
    val insts = Consts.typargs (Sign.consts_of thy) (c, ty);
haftmann@24218
   222
    val name = case raw_name
haftmann@24218
   223
     of "" => NONE
haftmann@24218
   224
      | _ => SOME raw_name;
haftmann@24218
   225
  in (c, (insts, ((name, t), atts))) end;
haftmann@24218
   226
wenzelm@24707
   227
fun read_def_cmd thy = gen_read_def thy Attrib.intern_src Syntax.parse_prop;
haftmann@24218
   228
fun read_def thy = gen_read_def thy (K I) (K I);
haftmann@24218
   229
haftmann@24589
   230
fun gen_instance prep_arity read_def do_proof raw_arities raw_defs after_qed theory =
haftmann@24218
   231
  let
haftmann@24218
   232
    val arities = map (prep_arity theory) raw_arities;
wenzelm@25020
   233
    val _ = if null arities then error "At least one arity must be given" else ();
haftmann@24218
   234
    val _ = case (duplicates (op =) o map #1) arities
haftmann@24218
   235
     of [] => ()
wenzelm@25020
   236
      | dupl_tycos => error ("Type constructors occur more than once in arities: "
wenzelm@25020
   237
          ^ commas_quote dupl_tycos);
haftmann@24218
   238
    fun get_consts_class tyco ty class =
haftmann@24218
   239
      let
wenzelm@24968
   240
        val cs = (these o try (#params o AxClass.get_info theory)) class;
haftmann@24218
   241
        val subst_ty = map_type_tfree (K ty);
haftmann@24218
   242
      in
haftmann@24304
   243
        map (fn (c, ty) => (c, ((class, tyco), subst_ty ty))) cs
haftmann@24218
   244
      end;
haftmann@24218
   245
    fun get_consts_sort (tyco, asorts, sort) =
haftmann@24218
   246
      let
haftmann@24589
   247
        val ty = Type (tyco, map (fn (v, sort) => TVar ((v, 0), sort))
wenzelm@24847
   248
          (Name.names Name.context Name.aT asorts))
wenzelm@24731
   249
      in maps (get_consts_class tyco ty) (Sign.complete_sort theory sort) end;
haftmann@24218
   250
    val cs = maps get_consts_sort arities;
haftmann@24218
   251
    fun mk_typnorm thy (ty, ty_sc) =
haftmann@24218
   252
      case try (Sign.typ_match thy (Logic.varifyT ty_sc, ty)) Vartab.empty
haftmann@24218
   253
       of SOME env => SOME (Logic.varifyT #> Envir.typ_subst_TVars env #> Logic.unvarifyT)
haftmann@24218
   254
        | NONE => NONE;
haftmann@24218
   255
    fun read_defs defs cs thy_read =
haftmann@24218
   256
      let
haftmann@24218
   257
        fun read raw_def cs =
haftmann@24218
   258
          let
haftmann@24218
   259
            val (c, (inst, ((name_opt, t), atts))) = read_def thy_read raw_def;
haftmann@24218
   260
            val ty = Consts.instance (Sign.consts_of thy_read) (c, inst);
haftmann@24304
   261
            val ((class, tyco), ty') = case AList.lookup (op =) cs c
wenzelm@25020
   262
             of NONE => error ("Illegal definition for constant " ^ quote c)
haftmann@24218
   263
              | SOME class_ty => class_ty;
haftmann@24218
   264
            val name = case name_opt
haftmann@24218
   265
             of NONE => Thm.def_name (Logic.name_arity (tyco, [], c))
haftmann@24218
   266
              | SOME name => name;
haftmann@24218
   267
            val t' = case mk_typnorm thy_read (ty', ty)
wenzelm@25020
   268
             of NONE => error ("Illegal definition for constant " ^
haftmann@24218
   269
                  quote (c ^ "::" ^ setmp show_sorts true
haftmann@24218
   270
                    (Sign.string_of_typ thy_read) ty))
haftmann@24218
   271
              | SOME norm => map_types norm t
haftmann@24218
   272
          in (((class, tyco), ((name, t'), atts)), AList.delete (op =) c cs) end;
haftmann@24218
   273
      in fold_map read defs cs end;
haftmann@24304
   274
    val (defs, other_cs) = read_defs raw_defs cs
haftmann@24218
   275
      (fold Sign.primitive_arity arities (Theory.copy theory));
haftmann@24423
   276
    fun after_qed' cs defs =
wenzelm@24766
   277
      fold Sign.add_const_constraint (map (apsnd SOME) cs)
haftmann@24423
   278
      #> after_qed defs;
haftmann@24218
   279
  in
haftmann@24218
   280
    theory
haftmann@25038
   281
    |> fold_map get_remove_global_constraint (map fst cs |> distinct (op =))
haftmann@24304
   282
    ||>> fold_map add_def defs
haftmann@24304
   283
    ||> fold (fn (c, ((class, tyco), ty)) => add_inst_def' (class, tyco) (c, ty)) other_cs
haftmann@24423
   284
    |-> (fn (cs, defs) => do_proof (after_qed' cs defs) arities defs)
haftmann@24218
   285
  end;
haftmann@24218
   286
haftmann@24423
   287
fun tactic_proof tac f arities defs =
haftmann@24218
   288
  fold (fn arity => AxClass.prove_arity arity tac) arities
haftmann@24423
   289
  #> f
haftmann@24423
   290
  #> pair defs;
haftmann@24218
   291
haftmann@24218
   292
in
haftmann@24218
   293
haftmann@24589
   294
val instance = gen_instance Sign.cert_arity read_def
haftmann@24589
   295
  (fn f => fn arities => fn defs => instance_arity f arities);
haftmann@24589
   296
val instance_cmd = gen_instance Sign.read_arity read_def_cmd
haftmann@24589
   297
  (fn f => fn arities => fn defs => instance_arity f arities);
haftmann@24589
   298
fun prove_instance tac arities defs =
haftmann@24589
   299
  gen_instance Sign.cert_arity read_def
haftmann@24589
   300
    (tactic_proof tac) arities defs (K I);
haftmann@24218
   301
haftmann@24218
   302
end; (*local*)
haftmann@24218
   303
haftmann@24218
   304
haftmann@24218
   305
haftmann@24589
   306
(** class data **)
haftmann@24218
   307
haftmann@24218
   308
datatype class_data = ClassData of {
haftmann@24218
   309
  consts: (string * string) list
haftmann@24836
   310
    (*locale parameter ~> constant name*),
haftmann@25062
   311
  base_sort: sort,
haftmann@25038
   312
  inst: (typ option list * term option list) * term Symtab.table
haftmann@25038
   313
    (*canonical interpretation FIXME*),
haftmann@25062
   314
  morphism: morphism,
haftmann@25062
   315
    (*partial morphism of canonical interpretation*)
haftmann@24657
   316
  intro: thm,
haftmann@24657
   317
  defs: thm list,
haftmann@25062
   318
  operations: (string * ((term * typ) * (typ * int))) list
haftmann@25062
   319
    (*constant name ~> (locale term & typ,
haftmann@25062
   320
        (constant constraint, instantiaton index of class typ))*)
haftmann@24657
   321
};
haftmann@24218
   322
haftmann@24657
   323
fun rep_class_data (ClassData d) = d;
haftmann@25062
   324
fun mk_class_data ((consts, base_sort, inst, morphism, intro),
haftmann@25062
   325
    (defs, operations)) =
haftmann@25062
   326
  ClassData { consts = consts, base_sort = base_sort, inst = inst,
haftmann@25062
   327
    morphism = morphism, intro = intro, defs = defs,
haftmann@25062
   328
    operations = operations };
haftmann@25062
   329
fun map_class_data f (ClassData { consts, base_sort, inst, morphism, intro,
haftmann@25062
   330
    defs, operations }) =
haftmann@25062
   331
  mk_class_data (f ((consts, base_sort, inst, morphism, intro),
haftmann@25062
   332
    (defs, operations)));
haftmann@25038
   333
fun merge_class_data _ (ClassData { consts = consts,
haftmann@25062
   334
    base_sort = base_sort, inst = inst, morphism = morphism, intro = intro,
haftmann@25062
   335
    defs = defs1, operations = operations1 },
haftmann@25062
   336
  ClassData { consts = _, base_sort = _, inst = _, morphism = _, intro = _,
haftmann@25062
   337
    defs = defs2, operations = operations2 }) =
haftmann@25062
   338
  mk_class_data ((consts, base_sort, inst, morphism, intro),
haftmann@24914
   339
    (Thm.merge_thms (defs1, defs2),
haftmann@25062
   340
      AList.merge (op =) (K true) (operations1, operations2)));
haftmann@24218
   341
haftmann@24218
   342
structure ClassData = TheoryDataFun
haftmann@24218
   343
(
haftmann@25038
   344
  type T = class_data Graph.T
haftmann@25038
   345
  val empty = Graph.empty;
haftmann@24218
   346
  val copy = I;
haftmann@24218
   347
  val extend = I;
haftmann@25038
   348
  fun merge _ = Graph.join merge_class_data;
haftmann@24218
   349
);
haftmann@24218
   350
haftmann@24218
   351
haftmann@24218
   352
(* queries *)
haftmann@24218
   353
haftmann@25038
   354
val lookup_class_data = Option.map rep_class_data oo try o Graph.get_node o ClassData.get;
haftmann@24218
   355
haftmann@24589
   356
fun the_class_data thy class = case lookup_class_data thy class
wenzelm@25020
   357
 of NONE => error ("Undeclared class " ^ quote class)
haftmann@24589
   358
  | SOME data => data;
haftmann@24218
   359
haftmann@25038
   360
val is_class = is_some oo lookup_class_data;
haftmann@25038
   361
haftmann@25038
   362
val ancestry = Graph.all_succs o ClassData.get;
haftmann@24218
   363
haftmann@25002
   364
fun these_params thy =
haftmann@24218
   365
  let
haftmann@24218
   366
    fun params class =
haftmann@24218
   367
      let
wenzelm@24930
   368
        val const_typs = (#params o AxClass.get_info thy) class;
haftmann@24657
   369
        val const_names = (#consts o the_class_data thy) class;
haftmann@24218
   370
      in
haftmann@24218
   371
        (map o apsnd) (fn c => (c, (the o AList.lookup (op =) const_typs) c)) const_names
haftmann@24218
   372
      end;
haftmann@24218
   373
  in maps params o ancestry thy end;
haftmann@24218
   374
haftmann@24657
   375
fun these_defs thy = maps (these o Option.map #defs o lookup_class_data thy) o ancestry thy;
haftmann@24218
   376
haftmann@25062
   377
fun morphism thy = #morphism o the_class_data thy;
haftmann@25062
   378
haftmann@24218
   379
fun these_intros thy =
haftmann@24657
   380
  Graph.fold (fn (_, (data, _)) => insert Thm.eq_thm ((#intro o rep_class_data) data))
haftmann@25038
   381
    (ClassData.get thy) [];
haftmann@24218
   382
haftmann@24836
   383
fun these_operations thy =
haftmann@24836
   384
  maps (#operations o the_class_data thy) o ancestry thy;
haftmann@24657
   385
haftmann@25002
   386
fun local_operation thy = AList.lookup (op =) o these_operations thy;
haftmann@25002
   387
haftmann@25062
   388
fun sups_base_sort thy sort =
haftmann@24901
   389
  let
haftmann@25062
   390
    val sups = filter (is_class thy) sort
haftmann@24901
   391
      |> Sign.minimize_sort thy;
haftmann@25062
   392
    val base_sort = case sups
haftmann@25062
   393
     of _ :: _ => maps (#base_sort o the_class_data thy) sups
haftmann@25062
   394
          |> Sign.minimize_sort thy
haftmann@24901
   395
      | [] => sort;
haftmann@25062
   396
  in (sups, base_sort) end;
haftmann@24901
   397
haftmann@24218
   398
fun print_classes thy =
haftmann@24218
   399
  let
wenzelm@24920
   400
    val ctxt = ProofContext.init thy;
haftmann@24218
   401
    val algebra = Sign.classes_of thy;
haftmann@24218
   402
    val arities =
haftmann@24218
   403
      Symtab.empty
haftmann@24218
   404
      |> Symtab.fold (fn (tyco, arities) => fold (fn (class, _) =>
haftmann@24218
   405
           Symtab.map_default (class, []) (insert (op =) tyco)) arities)
haftmann@24218
   406
             ((#arities o Sorts.rep_algebra) algebra);
haftmann@24218
   407
    val the_arities = these o Symtab.lookup arities;
haftmann@24218
   408
    fun mk_arity class tyco =
haftmann@24218
   409
      let
haftmann@24218
   410
        val Ss = Sorts.mg_domain algebra tyco [class];
wenzelm@24920
   411
      in Syntax.pretty_arity ctxt (tyco, Ss, [class]) end;
haftmann@24218
   412
    fun mk_param (c, ty) = Pretty.str (Sign.extern_const thy c ^ " :: "
wenzelm@24920
   413
      ^ setmp show_sorts false (Syntax.string_of_typ ctxt o Type.strip_sorts) ty);
haftmann@24218
   414
    fun mk_entry class = (Pretty.block o Pretty.fbreaks o map_filter I) [
haftmann@25062
   415
      (SOME o Pretty.str) ("class " ^ Sign.extern_class thy class ^ ":"),
haftmann@24218
   416
      (SOME o Pretty.block) [Pretty.str "supersort: ",
wenzelm@24920
   417
        (Syntax.pretty_sort ctxt o Sign.minimize_sort thy o Sign.super_classes thy) class],
haftmann@25062
   418
      if is_class thy class then (SOME o Pretty.str)
haftmann@25062
   419
        ("locale: " ^ Locale.extern thy class) else NONE,
haftmann@25062
   420
      ((fn [] => NONE | ps => (SOME o Pretty.block o Pretty.fbreaks)
haftmann@25062
   421
          (Pretty.str "parameters:" :: ps)) o map mk_param
wenzelm@24930
   422
        o these o Option.map #params o try (AxClass.get_info thy)) class,
haftmann@24218
   423
      (SOME o Pretty.block o Pretty.breaks) [
haftmann@24218
   424
        Pretty.str "instances:",
haftmann@24218
   425
        Pretty.list "" "" (map (mk_arity class) (the_arities class))
haftmann@24218
   426
      ]
haftmann@24218
   427
    ]
haftmann@24218
   428
  in
haftmann@24589
   429
    (Pretty.writeln o Pretty.chunks o separate (Pretty.str "")
haftmann@24589
   430
      o map mk_entry o Sorts.all_classes) algebra
haftmann@24218
   431
  end;
haftmann@24218
   432
haftmann@24218
   433
haftmann@24218
   434
(* updaters *)
haftmann@24218
   435
haftmann@25062
   436
fun add_class_data ((class, superclasses), (cs, base_sort, inst, phi, intro)) thy =
haftmann@25002
   437
  let
haftmann@25038
   438
    (*FIXME*)
haftmann@25038
   439
    val is_empty = null (fold (fn ((_, ty), _) => fold_atyps cons ty) cs [])
haftmann@25038
   440
      andalso null ((fold o fold_types o fold_atyps) cons
haftmann@25038
   441
        (maps snd (Locale.global_asms_of thy class)) []);
haftmann@25038
   442
    (*FIXME*)
haftmann@25038
   443
    val inst_params = map
haftmann@25038
   444
      (SOME o the o Symtab.lookup inst o fst o fst)
haftmann@25038
   445
        (Locale.parameters_of_expr thy (Locale.Locale class));
haftmann@25038
   446
    val instT = if is_empty then [] else [SOME (TFree (Name.aT, [class]))];
haftmann@25038
   447
    val inst' = ((instT, inst_params), inst);
haftmann@25062
   448
    val operations = map (fn (v_ty as (_, ty'), (c, ty)) =>
haftmann@25062
   449
      (c, ((Free v_ty, ty'), (Logic.varifyT ty, 0)))) cs;
haftmann@25002
   450
    val cs = (map o pairself) fst cs;
haftmann@25038
   451
    val add_class = Graph.new_node (class,
haftmann@25062
   452
        mk_class_data ((cs, base_sort, inst', phi, intro), ([], operations)))
haftmann@25002
   453
      #> fold (curry Graph.add_edge class) superclasses;
haftmann@25002
   454
  in
haftmann@25038
   455
    ClassData.map add_class thy
haftmann@25002
   456
  end;
haftmann@24218
   457
haftmann@25062
   458
fun register_operation class ((c, rhs), some_def) thy =
haftmann@25062
   459
  let
haftmann@25062
   460
    val ty = Sign.the_const_constraint thy c;
haftmann@25062
   461
    val typargs = Sign.const_typargs thy (c, ty);
haftmann@25062
   462
    val typidx = find_index (fn TVar ((v, _), _) => Name.aT = v | _ => false) typargs;
haftmann@25062
   463
    val ty' = Term.fastype_of rhs;
haftmann@25062
   464
  in
haftmann@25062
   465
    thy
haftmann@25062
   466
    |> (ClassData.map o Graph.map_node class o map_class_data o apsnd)
haftmann@25062
   467
      (fn (defs, operations) =>
haftmann@25062
   468
        (case some_def of NONE => defs | SOME def => def :: defs,
haftmann@25062
   469
          (c, ((rhs, ty'), (ty, typidx))) :: operations))
haftmann@25062
   470
  end;
haftmann@24218
   471
haftmann@24589
   472
haftmann@24589
   473
(** rule calculation, tactics and methods **)
haftmann@24589
   474
wenzelm@25024
   475
val class_prefix = Logic.const_of_class o Sign.base_name;
wenzelm@25024
   476
haftmann@25062
   477
fun calculate_morphism class cs =
haftmann@25062
   478
  let
haftmann@25062
   479
    val subst_typ = Term.map_type_tfree (fn var as (v, sort) =>
haftmann@25062
   480
      if v = Name.aT then TVar ((v, 0), [class]) else TVar ((v, 0), sort));
haftmann@25062
   481
    fun subst_aterm (t as Free (v, ty)) = (case AList.lookup (op =) cs v
haftmann@25062
   482
         of SOME (c, _) => Const (c, ty)
haftmann@25062
   483
          | NONE => t)
haftmann@25062
   484
      | subst_aterm t = t;
haftmann@25062
   485
    val subst_term = map_aterms subst_aterm #> map_types subst_typ;
haftmann@25062
   486
  in
haftmann@25062
   487
    Morphism.identity
haftmann@25062
   488
    $> Morphism.term_morphism subst_term
haftmann@25062
   489
    $> Morphism.typ_morphism subst_typ
haftmann@25062
   490
  end;
haftmann@25062
   491
haftmann@25038
   492
fun class_intro thy class sups =
haftmann@24589
   493
  let
haftmann@24589
   494
    fun class_elim class =
wenzelm@25020
   495
      case (#axioms o AxClass.get_info thy) class
wenzelm@25020
   496
       of [thm] => SOME (Drule.unconstrainTs thm)
haftmann@24589
   497
        | [] => NONE;
haftmann@25038
   498
    val pred_intro = case Locale.intros thy class
haftmann@24589
   499
     of ([ax_intro], [intro]) => intro |> OF_LAST ax_intro |> SOME
haftmann@24589
   500
      | ([intro], []) => SOME intro
haftmann@24589
   501
      | ([], [intro]) => SOME intro
haftmann@24589
   502
      | _ => NONE;
haftmann@24589
   503
    val pred_intro' = pred_intro
haftmann@24589
   504
      |> Option.map (fn intro => intro OF map_filter class_elim sups);
wenzelm@24930
   505
    val class_intro = (#intro o AxClass.get_info thy) class;
haftmann@24589
   506
    val raw_intro = case pred_intro'
haftmann@24589
   507
     of SOME pred_intro => class_intro |> OF_LAST pred_intro
haftmann@24589
   508
      | NONE => class_intro;
haftmann@24589
   509
    val sort = Sign.super_classes thy class;
wenzelm@24847
   510
    val typ = TVar ((Name.aT, 0), sort);
haftmann@24589
   511
    val defs = these_defs thy sups;
haftmann@24589
   512
  in
haftmann@24589
   513
    raw_intro
haftmann@24589
   514
    |> Drule.instantiate' [SOME (Thm.ctyp_of thy typ)] []
haftmann@24589
   515
    |> strip_all_ofclass thy sort
haftmann@24589
   516
    |> Thm.strip_shyps
haftmann@24589
   517
    |> MetaSimplifier.rewrite_rule defs
haftmann@24589
   518
    |> Drule.unconstrainTs
haftmann@24589
   519
  end;
haftmann@24589
   520
haftmann@24589
   521
fun class_interpretation class facts defs thy =
haftmann@24589
   522
  let
haftmann@25038
   523
    val params = these_params thy [class];
haftmann@25038
   524
    val { inst = ((_, inst), _), ... } = the_class_data thy class;
wenzelm@25020
   525
    val tac = ALLGOALS (ProofContext.fact_tac facts);
haftmann@25038
   526
    val prfx = class_prefix class;
haftmann@24589
   527
  in
haftmann@25038
   528
    thy
haftmann@25038
   529
    |> fold_map (get_remove_global_constraint o fst o snd) params
haftmann@25038
   530
    ||> prove_interpretation tac ((false, prfx), []) (Locale.Locale class) (inst, defs)
haftmann@25038
   531
    |-> (fn cs => fold (Sign.add_const_constraint o apsnd SOME) cs)
haftmann@24589
   532
  end;
haftmann@24218
   533
haftmann@24218
   534
fun intro_classes_tac facts st =
haftmann@24218
   535
  let
haftmann@24218
   536
    val thy = Thm.theory_of_thm st;
haftmann@24218
   537
    val classes = Sign.all_classes thy;
haftmann@24218
   538
    val class_trivs = map (Thm.class_triv thy) classes;
haftmann@24218
   539
    val class_intros = these_intros thy;
wenzelm@24930
   540
    val axclass_intros = map_filter (try (#intro o AxClass.get_info thy)) classes;
haftmann@24218
   541
  in
wenzelm@24930
   542
    (ALLGOALS (Method.insert_tac facts THEN'
wenzelm@24930
   543
      REPEAT_ALL_NEW (resolve_tac (class_trivs @ class_intros @ axclass_intros)))
wenzelm@24930
   544
    THEN Tactic.distinct_subgoals_tac) st
haftmann@24218
   545
  end;
haftmann@24218
   546
haftmann@24218
   547
fun default_intro_classes_tac [] = intro_classes_tac []
wenzelm@24930
   548
  | default_intro_classes_tac _ = no_tac;
haftmann@24218
   549
haftmann@24218
   550
fun default_tac rules ctxt facts =
haftmann@24218
   551
  HEADGOAL (Method.some_rule_tac rules ctxt facts) ORELSE
haftmann@24218
   552
    default_intro_classes_tac facts;
haftmann@24218
   553
haftmann@24218
   554
val _ = Context.add_setup (Method.add_methods
haftmann@24218
   555
 [("intro_classes", Method.no_args (Method.METHOD intro_classes_tac),
haftmann@24218
   556
    "back-chain introduction rules of classes"),
haftmann@24218
   557
  ("default", Method.thms_ctxt_args (Method.METHOD oo default_tac),
haftmann@24218
   558
    "apply some intro/elim rule")]);
haftmann@24218
   559
haftmann@24218
   560
haftmann@24589
   561
(** classes and class target **)
haftmann@24218
   562
haftmann@25002
   563
(* class context syntax *)
haftmann@24748
   564
haftmann@25062
   565
fun internal_remove_constraint base_sort (c, (_, (ty, _))) ctxt =
haftmann@24914
   566
  let
haftmann@25062
   567
    val ty' = ty
haftmann@25062
   568
      |> map_atyps (fn ty as TVar ((v, 0), _) =>
haftmann@25062
   569
           if v = Name.aT then TVar ((v, 0), base_sort) else ty)
haftmann@25062
   570
      |> SOME;
haftmann@25062
   571
  in ProofContext.add_const_constraint (c, ty') ctxt end;
haftmann@25002
   572
haftmann@25002
   573
fun remove_constraint class c ctxt =
haftmann@25002
   574
  let
haftmann@25002
   575
    val thy = ProofContext.theory_of ctxt;
haftmann@25062
   576
    val base_sort = (#base_sort o the_class_data thy) class;
haftmann@25002
   577
    val SOME entry = local_operation thy [class] c;
haftmann@24914
   578
  in
haftmann@25062
   579
    internal_remove_constraint base_sort (c, entry) ctxt
haftmann@24914
   580
  end;
haftmann@24914
   581
haftmann@25062
   582
fun sort_term_check sups base_sort ts ctxt =
haftmann@24748
   583
  let
haftmann@24901
   584
    val thy = ProofContext.theory_of ctxt;
haftmann@25062
   585
    val local_operation = local_operation thy sups o fst;
haftmann@25062
   586
    val typargs = Consts.typargs (ProofContext.consts_of ctxt);
haftmann@25002
   587
    val constraints = these_operations thy sups |> (map o apsnd) (fst o snd);
haftmann@25062
   588
    fun check_typ (c, ty) (TFree (v, _)) t = if v = Name.aT
haftmann@25062
   589
          then apfst (AList.update (op =) ((c, ty), t)) else I
haftmann@25062
   590
      | check_typ (c, ty) (TVar (vi, _)) t = if TypeInfer.is_param vi
haftmann@25062
   591
          then apfst (AList.update (op =) ((c, ty), t))
haftmann@24901
   592
            #> apsnd (insert (op =) vi) else I
haftmann@25062
   593
      | check_typ _ _ _ = I;
haftmann@25062
   594
    fun check_const (c, ty) ((t, _), (_, idx)) =
haftmann@25062
   595
      check_typ (c, ty) (nth (typargs (c, ty)) idx) t;
haftmann@25062
   596
    fun add_const (Const c_ty) = Option.map (check_const c_ty) (local_operation c_ty)
haftmann@25062
   597
          |> the_default I
haftmann@24901
   598
      | add_const _ = I;
haftmann@24901
   599
    val (cs, typarams) = (fold o fold_aterms) add_const ts ([], []);
haftmann@25062
   600
    val subst_typ = map_type_tvar (fn var as (vi, _) =>
haftmann@25062
   601
      if member (op =) typarams vi then TFree (Name.aT, base_sort) else TVar var);
haftmann@25062
   602
    val subst_term = map_aterms
haftmann@24901
   603
        (fn t as Const (c, ty) => the_default t (AList.lookup (op =) cs (c, ty)) | t => t)
haftmann@25062
   604
          #> map_types subst_typ;
haftmann@25062
   605
    val ts' = map subst_term ts;
haftmann@24901
   606
    val ctxt' = fold (ProofContext.add_const_constraint o apsnd SOME) constraints ctxt;
wenzelm@25060
   607
  in if eq_list (op aconv) (ts, ts') then NONE else SOME (ts', ctxt') end;
haftmann@24748
   608
haftmann@25062
   609
val uncheck = ref true;
haftmann@25002
   610
haftmann@25002
   611
fun sort_term_uncheck sups ts ctxt =
haftmann@25002
   612
  let
haftmann@25062
   613
    (*FIXME abbreviations*)
haftmann@25002
   614
    val thy = ProofContext.theory_of ctxt;
haftmann@25062
   615
    fun rew_app f (t1 $ t2) = rew_app f t1 $ f t2
haftmann@25062
   616
      | rew_app f t = t;
haftmann@25062
   617
    val rews = map (fn (c, ((t, ty), _)) => (t, Const (c, ty))) (these_operations thy sups);
haftmann@25062
   618
    val rews' = (map o apfst o rew_app) (Pattern.rewrite_term thy rews []) rews;
haftmann@25062
   619
    val _ = map (Thm.cterm_of thy o Logic.mk_equals) rews';
haftmann@25062
   620
    val ts' = if ! uncheck
haftmann@25062
   621
      then map (Pattern.rewrite_term thy rews' []) ts else ts;
wenzelm@25060
   622
  in if eq_list (op aconv) (ts, ts') then NONE else SOME (ts', ctxt) end;
haftmann@25002
   623
haftmann@25062
   624
fun init_class_ctxt sups base_sort ctxt =
haftmann@24914
   625
  let
haftmann@24914
   626
    val operations = these_operations (ProofContext.theory_of ctxt) sups;
haftmann@25062
   627
    fun standard_infer_types ts ctxt =
haftmann@25062
   628
      let
haftmann@25062
   629
        val ts' = ProofContext.standard_infer_types ctxt ts;
haftmann@25062
   630
      in if eq_list (op aconv) (ts, ts') then NONE else SOME (ts', ctxt) end;
haftmann@24914
   631
  in
haftmann@24914
   632
    ctxt
haftmann@24914
   633
    |> Variable.declare_term
haftmann@25062
   634
        (Logic.mk_type (TFree (Name.aT, base_sort)))
haftmann@25062
   635
    |> fold (internal_remove_constraint base_sort) operations
haftmann@25062
   636
    |> Context.proof_map (Syntax.add_term_check 1 "class"
haftmann@25062
   637
            (sort_term_check sups base_sort)
haftmann@25062
   638
        #> Syntax.add_term_check 1 "standard" standard_infer_types
haftmann@25062
   639
        #> Syntax.add_term_uncheck (~10) "class" (sort_term_uncheck sups))
haftmann@24914
   640
  end;
haftmann@24901
   641
haftmann@24901
   642
fun init class ctxt =
haftmann@24914
   643
  init_class_ctxt [class]
haftmann@25062
   644
    ((#base_sort o the_class_data (ProofContext.theory_of ctxt)) class) ctxt;
haftmann@24914
   645
haftmann@24748
   646
haftmann@24589
   647
(* class definition *)
haftmann@24218
   648
haftmann@24218
   649
local
haftmann@24218
   650
haftmann@24748
   651
fun gen_class_spec prep_class prep_expr process_expr thy raw_supclasses raw_includes_elems =
haftmann@24218
   652
  let
haftmann@24748
   653
    val supclasses = map (prep_class thy) raw_supclasses;
haftmann@25062
   654
    val (sups, base_sort) = sups_base_sort thy supclasses;
haftmann@24748
   655
    val supsort = Sign.minimize_sort thy supclasses;
haftmann@25038
   656
    val suplocales = map Locale.Locale sups;
haftmann@24748
   657
    val (raw_elems, includes) = fold_rev (fn Locale.Elem e => apfst (cons e)
haftmann@24748
   658
      | Locale.Expr i => apsnd (cons (prep_expr thy i))) raw_includes_elems ([], []);
haftmann@24748
   659
    val supexpr = Locale.Merge suplocales;
haftmann@24748
   660
    val supparams = (map fst o Locale.parameters_of_expr thy) supexpr;
haftmann@25002
   661
    val supconsts = AList.make (the o AList.lookup (op =) (these_params thy sups))
haftmann@24748
   662
      (map fst supparams);
haftmann@24748
   663
    val mergeexpr = Locale.Merge (suplocales @ includes);
haftmann@24748
   664
    val constrain = Element.Constrains ((map o apsnd o map_atyps)
wenzelm@24847
   665
      (fn TFree (_, sort) => TFree (Name.aT, sort)) supparams);
haftmann@24748
   666
  in
haftmann@24748
   667
    ProofContext.init thy
haftmann@24748
   668
    |> Locale.cert_expr supexpr [constrain]
haftmann@24748
   669
    |> snd
haftmann@25062
   670
    |> init_class_ctxt sups base_sort
haftmann@24748
   671
    |> process_expr Locale.empty raw_elems
haftmann@24748
   672
    |> fst
haftmann@25062
   673
    |> (fn elems => ((((sups, supconsts), (supsort, base_sort, mergeexpr)),
haftmann@24748
   674
          (*FIXME*) if null includes then constrain :: elems else elems)))
haftmann@24748
   675
  end;
haftmann@24748
   676
haftmann@24748
   677
val read_class_spec = gen_class_spec Sign.intern_class Locale.intern_expr Locale.read_expr;
haftmann@24748
   678
val check_class_spec = gen_class_spec (K I) (K I) Locale.cert_expr;
haftmann@24748
   679
wenzelm@24968
   680
fun define_class_params (name, raw_superclasses) raw_consts raw_dep_axioms other_consts thy =
wenzelm@24968
   681
  let
wenzelm@24968
   682
    val superclasses = map (Sign.certify_class thy) raw_superclasses;
wenzelm@24968
   683
    val consts = (map o apfst o apsnd) (Sign.certify_typ thy) raw_consts;
wenzelm@24968
   684
    fun add_const ((c, ty), syn) = Sign.declare_const [] (c, ty, syn) #>> Term.dest_Const;
wenzelm@24968
   685
    fun mk_axioms cs thy =
wenzelm@24968
   686
      raw_dep_axioms thy cs
wenzelm@24968
   687
      |> (map o apsnd o map) (Sign.cert_prop thy)
wenzelm@24968
   688
      |> rpair thy;
haftmann@25002
   689
    fun constrain_typs class = (map o apsnd o Term.map_type_tfree)
haftmann@25002
   690
      (fn (v, _) => TFree (v, [class]))
wenzelm@24968
   691
  in
wenzelm@24968
   692
    thy
wenzelm@24968
   693
    |> Sign.add_path (Logic.const_of_class name)
wenzelm@24968
   694
    |> fold_map add_const consts
wenzelm@24968
   695
    ||> Sign.restore_naming thy
wenzelm@24968
   696
    |-> (fn cs => mk_axioms cs
wenzelm@24968
   697
    #-> (fn axioms_prop => AxClass.define_class (name, superclasses)
wenzelm@24968
   698
           (map fst cs @ other_consts) axioms_prop
haftmann@25002
   699
    #-> (fn class => `(fn _ => constrain_typs class cs)
haftmann@25002
   700
    #-> (fn cs' => `(fn thy => AxClass.get_info thy class)
haftmann@25002
   701
    #-> (fn {axioms, ...} => fold (Sign.add_const_constraint o apsnd SOME) cs'
haftmann@25002
   702
    #> pair (class, (cs', axioms)))))))
wenzelm@24968
   703
  end;
wenzelm@24968
   704
haftmann@25002
   705
fun gen_class prep_spec prep_param bname
haftmann@24748
   706
    raw_supclasses raw_includes_elems raw_other_consts thy =
haftmann@24748
   707
  let
haftmann@25038
   708
    val class = Sign.full_name thy bname;
haftmann@25062
   709
    val (((sups, supconsts), (supsort, base_sort, mergeexpr)), elems_syn) =
haftmann@24748
   710
      prep_spec thy raw_supclasses raw_includes_elems;
wenzelm@24968
   711
    val other_consts = map (tap (Sign.the_const_type thy) o prep_param thy) raw_other_consts;
haftmann@24589
   712
    fun mk_inst class param_names cs =
haftmann@24589
   713
      Symtab.empty
haftmann@24589
   714
      |> fold2 (fn v => fn (c, ty) => Symtab.update (v, Const
haftmann@24589
   715
           (c, Term.map_type_tfree (fn (v, _) => TFree (v, [class])) ty))) param_names cs;
haftmann@25062
   716
    fun fork_syntax (Element.Fixes xs) =
haftmann@25062
   717
          fold_map (fn (c, ty, syn) => cons (c, syn) #> pair (c, ty, NoSyn)) xs
haftmann@25062
   718
          #>> Element.Fixes
haftmann@25062
   719
      | fork_syntax x = pair x;
haftmann@25062
   720
    val (elems, global_syn) = fold_map fork_syntax elems_syn [];
haftmann@25062
   721
    fun globalize (c, ty) = 
haftmann@25062
   722
      ((c, Term.map_type_tfree (K (TFree (Name.aT, base_sort))) ty),
haftmann@25062
   723
        (the_default NoSyn o AList.lookup (op =) global_syn) c);
haftmann@25038
   724
    fun extract_params thy =
haftmann@24218
   725
      let
haftmann@25062
   726
        val params = map fst (Locale.parameters_of thy class);
haftmann@24218
   727
      in
haftmann@25062
   728
        (params, (map globalize o snd o chop (length supconsts)) params)
haftmann@24218
   729
      end;
haftmann@25038
   730
    fun extract_assumes params thy cs =
haftmann@24218
   731
      let
haftmann@24218
   732
        val consts = supconsts @ (map (fst o fst) params ~~ cs);
haftmann@24218
   733
        fun subst (Free (c, ty)) =
haftmann@24218
   734
              Const ((fst o the o AList.lookup (op =) consts) c, ty)
haftmann@24218
   735
          | subst t = t;
haftmann@24218
   736
        fun prep_asm ((name, atts), ts) =
wenzelm@25024
   737
          ((Sign.base_name name, map (Attrib.attribute_i thy) atts),
haftmann@24589
   738
            (map o map_aterms) subst ts);
haftmann@24218
   739
      in
haftmann@25038
   740
        Locale.global_asms_of thy class
haftmann@24218
   741
        |> map prep_asm
haftmann@24218
   742
      end;
haftmann@24218
   743
  in
haftmann@24218
   744
    thy
haftmann@24748
   745
    |> Locale.add_locale_i (SOME "") bname mergeexpr elems
haftmann@25038
   746
    |> snd
haftmann@25038
   747
    |> ProofContext.theory (`extract_params
haftmann@25062
   748
      #-> (fn (all_params, params) =>
wenzelm@24968
   749
        define_class_params (bname, supsort) params
haftmann@25038
   750
          (extract_assumes params) other_consts
haftmann@25038
   751
      #-> (fn (_, (consts, axioms)) =>
haftmann@25038
   752
        `(fn thy => class_intro thy class sups)
haftmann@24218
   753
      #-> (fn class_intro =>
haftmann@25062
   754
        PureThy.note_thmss_qualified "" (NameSpace.append class classN)
haftmann@25062
   755
          [((introN, []), [([class_intro], [])])]
haftmann@25062
   756
      #-> (fn [(_, [class_intro])] =>
haftmann@25038
   757
        add_class_data ((class, sups),
haftmann@25062
   758
          (map fst params ~~ consts, base_sort,
haftmann@25062
   759
            mk_inst class (map fst all_params) (map snd supconsts @ consts),
haftmann@25062
   760
              calculate_morphism class (supconsts @ (map (fst o fst) params ~~ consts)), class_intro))
haftmann@25038
   761
      #> class_interpretation class axioms []
haftmann@25062
   762
      )))))
haftmann@25038
   763
    |> pair class
haftmann@24218
   764
  end;
haftmann@24218
   765
haftmann@24218
   766
in
haftmann@24218
   767
wenzelm@24968
   768
val class_cmd = gen_class read_class_spec ((#1 o Term.dest_Const) oo Sign.read_const);
haftmann@24748
   769
val class = gen_class check_class_spec (K I);
haftmann@24218
   770
haftmann@24218
   771
end; (*local*)
haftmann@24218
   772
haftmann@24218
   773
haftmann@24589
   774
(* definition in class target *)
haftmann@24218
   775
haftmann@25062
   776
fun add_const_in_class class ((c, mx), rhs) thy =
haftmann@24218
   777
  let
wenzelm@25024
   778
    val prfx = class_prefix class;
wenzelm@25024
   779
    val thy' = thy |> Sign.add_path prfx;
haftmann@25062
   780
    val phi = morphism thy' class;
wenzelm@25024
   781
haftmann@25062
   782
    val c' = Sign.full_name thy' c;
haftmann@25062
   783
    val rhs' = (map_types Logic.unvarifyT o Morphism.term phi) rhs;
haftmann@24218
   784
    val ty' = Term.fastype_of rhs';
haftmann@24657
   785
    val def = (c, Logic.mk_equals (Const (c', ty'), rhs'));
haftmann@25062
   786
    val c'' = NameSpace.full (Sign.naming_of thy' |> NameSpace.add_path prfx) c;
haftmann@24218
   787
  in
wenzelm@25024
   788
    thy'
haftmann@25038
   789
    |> Sign.hide_consts_i false [c'']
wenzelm@25066
   790
    |> Sign.declare_const [] (c, ty', mx) |> snd
haftmann@24218
   791
    |> Sign.parent_path
haftmann@24218
   792
    |> Sign.sticky_prefix prfx
haftmann@25062
   793
    |> yield_singleton (PureThy.add_defs_i false) (def, [])
haftmann@25062
   794
    |>> Thm.symmetric
haftmann@25062
   795
    |-> (fn def => class_interpretation class [def]
haftmann@25062
   796
                [(map_types Logic.unvarifyT o Thm.prop_of) def]
haftmann@25062
   797
          #> register_operation class ((c', rhs), SOME def))
haftmann@24218
   798
    |> Sign.restore_naming thy
haftmann@24914
   799
    |> pair c'
haftmann@24218
   800
  end;
haftmann@24218
   801
haftmann@24901
   802
haftmann@24901
   803
(* abbreviation in class target *)
haftmann@24901
   804
haftmann@25062
   805
fun add_abbrev_in_class class prmode ((c, mx), rhs) thy =
haftmann@24836
   806
  let
wenzelm@25024
   807
    val prfx = class_prefix class;
haftmann@25062
   808
    val phi = morphism thy class;
haftmann@25062
   809
haftmann@25038
   810
    val naming = Sign.naming_of thy |> NameSpace.add_path prfx |> NameSpace.add_path prfx;
haftmann@25038
   811
      (*FIXME*)
wenzelm@25024
   812
    val c' = NameSpace.full naming c;
haftmann@25062
   813
    val rhs' = (map_types Logic.unvarifyT o Morphism.term phi) rhs;
wenzelm@25020
   814
    val ty' = Term.fastype_of rhs';
haftmann@24836
   815
  in
haftmann@24836
   816
    thy
wenzelm@25024
   817
    |> Sign.notation true prmode [(Const (c', ty'), mx)]
haftmann@25062
   818
    |> register_operation class ((c', rhs), NONE)
haftmann@24914
   819
    |> pair c'
haftmann@24836
   820
  end;
haftmann@24836
   821
haftmann@24218
   822
end;