src/Pure/Isar/locale.ML
author wenzelm
Sat Mar 28 20:25:23 2009 +0100 (2009-03-28)
changeset 30764 3e3e7aa0cc7a
parent 30763 6976521b4263
child 30773 6cc9964436c3
permissions -rw-r--r--
simplified Locale.activate operations, using generic context;
misc tuning;
haftmann@29361
     1
(*  Title:      Pure/Isar/locale.ML
haftmann@29361
     2
    Author:     Clemens Ballarin, TU Muenchen
haftmann@29361
     3
wenzelm@30725
     4
Locales -- managed Isar proof contexts, based on Pure predicates.
haftmann@29361
     5
haftmann@29361
     6
Draws basic ideas from Florian Kammueller's original version of
haftmann@29361
     7
locales, but uses the richer infrastructure of Isar instead of the raw
haftmann@29361
     8
meta-logic.  Furthermore, structured import of contexts (with merge
haftmann@29361
     9
and rename operations) are provided, as well as type-inference of the
haftmann@29361
    10
signature parts, and predicate definitions of the specification text.
haftmann@29361
    11
haftmann@29361
    12
Interpretation enables the reuse of theorems of locales in other
haftmann@29361
    13
contexts, namely those defined by theories, structured proofs and
haftmann@29361
    14
locales themselves.
haftmann@29361
    15
haftmann@29361
    16
See also:
haftmann@29361
    17
haftmann@29361
    18
[1] Clemens Ballarin. Locales and Locale Expressions in Isabelle/Isar.
haftmann@29361
    19
    In Stefano Berardi et al., Types for Proofs and Programs: International
haftmann@29361
    20
    Workshop, TYPES 2003, Torino, Italy, LNCS 3085, pages 34-50, 2004.
haftmann@29361
    21
[2] Clemens Ballarin. Interpretation of Locales in Isabelle: Managing
haftmann@29361
    22
    Dependencies between Locales. Technical Report TUM-I0607, Technische
haftmann@29361
    23
    Universitaet Muenchen, 2006.
haftmann@29361
    24
[3] Clemens Ballarin. Interpretation of Locales in Isabelle: Theories and
haftmann@29361
    25
    Proof Contexts. In J.M. Borwein and W.M. Farmer, MKM 2006, LNAI 4108,
haftmann@29361
    26
    pages 31-43, 2006.
haftmann@29361
    27
*)
haftmann@29361
    28
haftmann@29361
    29
signature LOCALE =
haftmann@29361
    30
sig
haftmann@29576
    31
  (* Locale specification *)
wenzelm@30344
    32
  val register_locale: binding ->
wenzelm@30755
    33
    (string * sort) list * ((string * typ) * mixfix) list ->
haftmann@29361
    34
    term option * term list ->
haftmann@29441
    35
    thm option * thm option -> thm list ->
wenzelm@30725
    36
    declaration list * declaration list ->
wenzelm@30725
    37
    (string * (Attrib.binding * (thm list * Attrib.src list) list) list) list ->
wenzelm@30725
    38
    (string * morphism) list -> theory -> theory
haftmann@29361
    39
  val intern: theory -> xstring -> string
haftmann@29361
    40
  val extern: theory -> string -> xstring
haftmann@29392
    41
  val defined: theory -> string -> bool
wenzelm@30755
    42
  val params_of: theory -> string -> ((string * typ) * mixfix) list
haftmann@29441
    43
  val intros_of: theory -> string -> thm option * thm option
haftmann@29441
    44
  val axioms_of: theory -> string -> thm list
haftmann@29544
    45
  val instance_of: theory -> string -> morphism -> term list
haftmann@29361
    46
  val specification_of: theory -> string -> term option * term list
haftmann@29361
    47
  val declarations_of: theory -> string -> declaration list * declaration list
haftmann@29544
    48
  val dependencies_of: theory -> string -> (string * morphism) list
haftmann@29361
    49
haftmann@29361
    50
  (* Storing results *)
haftmann@29361
    51
  val add_thmss: string -> string -> (Attrib.binding * (thm list * Attrib.src list) list) list ->
haftmann@29361
    52
    Proof.context -> Proof.context
haftmann@29361
    53
  val add_type_syntax: string -> declaration -> Proof.context -> Proof.context
haftmann@29361
    54
  val add_term_syntax: string -> declaration -> Proof.context -> Proof.context
haftmann@29361
    55
  val add_declaration: string -> declaration -> Proof.context -> Proof.context
haftmann@29544
    56
  val add_dependency: string -> string * morphism -> theory -> theory
haftmann@29361
    57
haftmann@29361
    58
  (* Activation *)
wenzelm@30764
    59
  val activate_declarations: string * morphism -> Proof.context -> Proof.context
wenzelm@30764
    60
  val activate_facts: string * morphism -> Context.generic -> Context.generic
haftmann@29361
    61
  val init: string -> theory -> Proof.context
haftmann@29361
    62
haftmann@29361
    63
  (* Reasoning about locales *)
wenzelm@30725
    64
  val get_witnesses: Proof.context -> thm list
wenzelm@30725
    65
  val get_intros: Proof.context -> thm list
wenzelm@30725
    66
  val get_unfolds: Proof.context -> thm list
wenzelm@30725
    67
  val witness_add: attribute
wenzelm@30725
    68
  val intro_add: attribute
wenzelm@30725
    69
  val unfold_add: attribute
haftmann@29361
    70
  val intro_locales_tac: bool -> Proof.context -> thm list -> tactic
haftmann@29361
    71
haftmann@29361
    72
  (* Registrations *)
wenzelm@30725
    73
  val add_registration: string * (morphism * morphism) -> theory -> theory
wenzelm@30725
    74
  val amend_registration: morphism -> string * morphism -> theory -> theory
haftmann@29544
    75
  val get_registrations: theory -> (string * morphism) list
haftmann@29361
    76
haftmann@29361
    77
  (* Diagnostic *)
haftmann@29361
    78
  val print_locales: theory -> unit
wenzelm@30344
    79
  val print_locale: theory -> bool -> xstring -> unit
haftmann@29361
    80
end;
haftmann@29361
    81
haftmann@29361
    82
structure Locale: LOCALE =
haftmann@29361
    83
struct
haftmann@29361
    84
haftmann@29361
    85
datatype ctxt = datatype Element.ctxt;
haftmann@29361
    86
haftmann@29392
    87
haftmann@29392
    88
(*** Theory data ***)
haftmann@29361
    89
haftmann@29361
    90
datatype locale = Loc of {
haftmann@29392
    91
  (** static part **)
wenzelm@30755
    92
  parameters: (string * sort) list * ((string * typ) * mixfix) list,
haftmann@29361
    93
    (* type and term parameters *)
haftmann@29361
    94
  spec: term option * term list,
haftmann@29361
    95
    (* assumptions (as a single predicate expression) and defines *)
haftmann@29441
    96
  intros: thm option * thm option,
haftmann@29441
    97
  axioms: thm list,
haftmann@29392
    98
  (** dynamic part **)
haftmann@29361
    99
  decls: (declaration * stamp) list * (declaration * stamp) list,
haftmann@29361
   100
    (* type and term syntax declarations *)
haftmann@29361
   101
  notes: ((string * (Attrib.binding * (thm list * Attrib.src list) list) list) * stamp) list,
haftmann@29361
   102
    (* theorem declarations *)
haftmann@29544
   103
  dependencies: ((string * morphism) * stamp) list
haftmann@29361
   104
    (* locale dependencies (sublocale relation) *)
haftmann@29392
   105
};
haftmann@29361
   106
haftmann@29441
   107
fun mk_locale ((parameters, spec, intros, axioms), ((decls, notes), dependencies)) =
haftmann@29441
   108
  Loc {parameters = parameters, intros = intros, axioms = axioms, spec = spec,
haftmann@29441
   109
    decls = decls, notes = notes, dependencies = dependencies};
wenzelm@30754
   110
haftmann@29441
   111
fun map_locale f (Loc {parameters, spec, intros, axioms, decls, notes, dependencies}) =
haftmann@29441
   112
  mk_locale (f ((parameters, spec, intros, axioms), ((decls, notes), dependencies)));
wenzelm@30754
   113
haftmann@29441
   114
fun merge_locale (Loc {parameters, spec, intros, axioms, decls = (decls1, decls2),
haftmann@29441
   115
  notes, dependencies}, Loc {decls = (decls1', decls2'), notes = notes',
haftmann@29441
   116
    dependencies = dependencies', ...}) = mk_locale
haftmann@29441
   117
      ((parameters, spec, intros, axioms),
haftmann@29441
   118
        (((merge (eq_snd op =) (decls1, decls1'), merge (eq_snd op =) (decls2, decls2')),
haftmann@29441
   119
          merge (eq_snd op =) (notes, notes')),
haftmann@29441
   120
            merge (eq_snd op =) (dependencies, dependencies')));
haftmann@29361
   121
wenzelm@30725
   122
structure Locales = TheoryDataFun
haftmann@29361
   123
(
haftmann@29392
   124
  type T = locale NameSpace.table;
haftmann@29361
   125
  val empty = NameSpace.empty_table;
haftmann@29361
   126
  val copy = I;
haftmann@29361
   127
  val extend = I;
haftmann@29392
   128
  fun merge _ = NameSpace.join_tables (K merge_locale);
haftmann@29361
   129
);
haftmann@29361
   130
wenzelm@30725
   131
val intern = NameSpace.intern o #1 o Locales.get;
wenzelm@30725
   132
val extern = NameSpace.extern o #1 o Locales.get;
haftmann@29392
   133
wenzelm@30725
   134
val get_locale = Symtab.lookup o #2 o Locales.get;
wenzelm@30725
   135
val defined = Symtab.defined o #2 o Locales.get;
haftmann@29361
   136
wenzelm@30725
   137
fun the_locale thy name =
wenzelm@30725
   138
  (case get_locale thy name of
wenzelm@30725
   139
    SOME (Loc loc) => loc
wenzelm@30725
   140
  | NONE => error ("Unknown locale " ^ quote name));
haftmann@29361
   141
wenzelm@30344
   142
fun register_locale binding parameters spec intros axioms decls notes dependencies thy =
wenzelm@30725
   143
  thy |> Locales.map (NameSpace.define (Sign.naming_of thy)
wenzelm@30725
   144
    (binding,
wenzelm@30725
   145
      mk_locale ((parameters, spec, intros, axioms),
wenzelm@30725
   146
        ((pairself (map (fn decl => (decl, stamp ()))) decls, map (fn n => (n, stamp ())) notes),
wenzelm@30725
   147
          map (fn d => (d, stamp ())) dependencies))) #> snd);
haftmann@29361
   148
haftmann@29392
   149
fun change_locale name =
wenzelm@30725
   150
  Locales.map o apsnd o Symtab.map_entry name o map_locale o apsnd;
haftmann@29361
   151
haftmann@29361
   152
fun print_locales thy =
wenzelm@30725
   153
  Pretty.strs ("locales:" :: map #1 (NameSpace.extern_table (Locales.get thy)))
haftmann@29392
   154
  |> Pretty.writeln;
haftmann@29361
   155
haftmann@29361
   156
haftmann@29361
   157
(*** Primitive operations ***)
haftmann@29361
   158
haftmann@29392
   159
fun params_of thy = snd o #parameters o the_locale thy;
haftmann@29361
   160
haftmann@29441
   161
fun intros_of thy = #intros o the_locale thy;
haftmann@29441
   162
haftmann@29441
   163
fun axioms_of thy = #axioms o the_locale thy;
haftmann@29441
   164
haftmann@29392
   165
fun instance_of thy name morph = params_of thy name |>
wenzelm@30755
   166
  map (Morphism.term morph o Free o #1);
haftmann@29361
   167
haftmann@29392
   168
fun specification_of thy = #spec o the_locale thy;
haftmann@29361
   169
haftmann@29392
   170
fun declarations_of thy name = the_locale thy name |>
wenzelm@30725
   171
  #decls |> pairself (map fst);
haftmann@29361
   172
haftmann@29544
   173
fun dependencies_of thy name = the_locale thy name |>
haftmann@29544
   174
  #dependencies |> map fst;
haftmann@29544
   175
haftmann@29361
   176
haftmann@29361
   177
(*** Activate context elements of locale ***)
haftmann@29361
   178
haftmann@29361
   179
(** Identifiers: activated locales in theory or proof context **)
haftmann@29361
   180
haftmann@29361
   181
fun ident_eq thy ((n: string, ts), (m, ss)) = (m = n) andalso Pattern.matchess thy (ss, ts);
haftmann@29361
   182
haftmann@29361
   183
local
haftmann@29361
   184
wenzelm@30754
   185
datatype 'a delayed = Ready of 'a | ToDo of 'a delayed * 'a delayed;
haftmann@29361
   186
wenzelm@30725
   187
structure Identifiers = GenericDataFun
haftmann@29361
   188
(
wenzelm@30754
   189
  type T = (string * term list) list delayed;
wenzelm@30754
   190
  val empty = Ready [];
haftmann@29361
   191
  val extend = I;
haftmann@29361
   192
  fun merge _ = ToDo;
haftmann@29361
   193
);
haftmann@29361
   194
haftmann@29361
   195
fun finish thy (ToDo (i1, i2)) = merge (ident_eq thy) (finish thy i1, finish thy i2)
haftmann@29361
   196
  | finish _ (Ready ids) = ids;
haftmann@29361
   197
haftmann@29361
   198
val _ = Context.>> (Context.map_theory (Theory.at_begin (fn thy =>
wenzelm@30725
   199
  (case Identifiers.get (Context.Theory thy) of
wenzelm@30725
   200
    Ready _ => NONE
wenzelm@30725
   201
  | ids => SOME (Context.theory_map (Identifiers.put (Ready (finish thy ids))) thy)))));
haftmann@29361
   202
wenzelm@30764
   203
in
haftmann@29361
   204
wenzelm@30764
   205
val get_idents = (fn Ready ids => ids) o Identifiers.get;
wenzelm@30764
   206
val put_idents = Identifiers.put o Ready;
haftmann@29361
   207
haftmann@29361
   208
end;
haftmann@29361
   209
haftmann@29361
   210
haftmann@29361
   211
(** Resolve locale dependencies in a depth-first fashion **)
haftmann@29361
   212
haftmann@29361
   213
local
haftmann@29361
   214
haftmann@29361
   215
val roundup_bound = 120;
haftmann@29361
   216
haftmann@29361
   217
fun add thy depth (name, morph) (deps, marked) =
haftmann@29361
   218
  if depth > roundup_bound
haftmann@29361
   219
  then error "Roundup bound exceeded (sublocale relation probably not terminating)."
haftmann@29361
   220
  else
haftmann@29361
   221
    let
wenzelm@30754
   222
      val dependencies = dependencies_of thy name;
haftmann@29361
   223
      val instance = instance_of thy name morph;
haftmann@29361
   224
    in
haftmann@29361
   225
      if member (ident_eq thy) marked (name, instance)
haftmann@29361
   226
      then (deps, marked)
haftmann@29361
   227
      else
haftmann@29361
   228
        let
wenzelm@30754
   229
          val dependencies' = map (fn (name, morph') => (name, morph' $> morph)) dependencies;
haftmann@29361
   230
          val marked' = (name, instance) :: marked;
haftmann@29361
   231
          val (deps', marked'') = fold_rev (add thy (depth + 1)) dependencies' ([], marked');
haftmann@29361
   232
        in
haftmann@29361
   233
          ((name, morph) :: deps' @ deps, marked'')
haftmann@29361
   234
        end
haftmann@29361
   235
    end;
haftmann@29361
   236
haftmann@29361
   237
in
haftmann@29361
   238
haftmann@29361
   239
fun roundup thy activate_dep (name, morph) (marked, input) =
haftmann@29361
   240
  let
haftmann@29361
   241
    (* Find all dependencies incuding new ones (which are dependencies enriching
haftmann@29361
   242
      existing registrations). *)
wenzelm@30754
   243
    val (dependencies, marked') = add thy 0 (name, morph) ([], []);
haftmann@29361
   244
    (* Filter out exisiting fragments. *)
haftmann@29361
   245
    val dependencies' = filter_out (fn (name, morph) =>
haftmann@29361
   246
      member (ident_eq thy) marked (name, instance_of thy name morph)) dependencies;
haftmann@29361
   247
  in
haftmann@29361
   248
    (merge (ident_eq thy) (marked, marked'), input |> fold_rev (activate_dep thy) dependencies')
haftmann@29361
   249
  end;
haftmann@29361
   250
haftmann@29361
   251
end;
haftmann@29361
   252
haftmann@29361
   253
haftmann@29361
   254
(* Declarations, facts and entire locale content *)
haftmann@29361
   255
wenzelm@30764
   256
fun activate_decls (name, morph) context =
haftmann@29361
   257
  let
wenzelm@30764
   258
    val thy = Context.theory_of context;
haftmann@29392
   259
    val {decls = (typ_decls, term_decls), ...} = the_locale thy name;
haftmann@29361
   260
  in
wenzelm@30764
   261
    context
wenzelm@30764
   262
    |> fold_rev (fn (decl, _) => decl morph) typ_decls
wenzelm@30764
   263
    |> fold_rev (fn (decl, _) => decl morph) term_decls
haftmann@29361
   264
  end;
haftmann@29361
   265
haftmann@29361
   266
fun activate_notes activ_elem transfer thy (name, morph) input =
haftmann@29361
   267
  let
haftmann@29392
   268
    val {notes, ...} = the_locale thy name;
haftmann@29361
   269
    fun activate ((kind, facts), _) input =
haftmann@29361
   270
      let
haftmann@29361
   271
        val facts' = facts |> Element.facts_map (Element.morph_ctxt (transfer input $> morph))
haftmann@29361
   272
      in activ_elem (Notes (kind, facts')) input end;
haftmann@29361
   273
  in
haftmann@29361
   274
    fold_rev activate notes input
haftmann@29361
   275
  end;
haftmann@29361
   276
haftmann@29361
   277
fun activate_all name thy activ_elem transfer (marked, input) =
haftmann@29361
   278
  let
wenzelm@30764
   279
    val {parameters = (_, params), spec = (asm, defs), ...} = the_locale thy name;
wenzelm@30764
   280
    val input' = input |>
wenzelm@30755
   281
      (not (null params) ?
wenzelm@30755
   282
        activ_elem (Fixes (map (fn ((x, T), mx) => (Binding.name x, SOME T, mx)) params))) |>
haftmann@29361
   283
      (* FIXME type parameters *)
wenzelm@30764
   284
      (case asm of SOME A => activ_elem (Assumes [(Attrib.empty_binding, [(A, [])])]) | _ => I) |>
haftmann@29361
   285
      (if not (null defs)
haftmann@29361
   286
        then activ_elem (Defines (map (fn def => (Attrib.empty_binding, (def, []))) defs))
wenzelm@30764
   287
        else I);
wenzelm@30764
   288
  in
wenzelm@30764
   289
    roundup thy (activate_notes activ_elem transfer) (name, Morphism.identity) (marked, input')
haftmann@29361
   290
  end;
haftmann@29361
   291
haftmann@29361
   292
haftmann@29361
   293
(** Public activation functions **)
haftmann@29361
   294
haftmann@29361
   295
local
haftmann@29361
   296
wenzelm@30764
   297
fun init_elem (Fixes fixes) (Context.Proof ctxt) =
wenzelm@30764
   298
      Context.Proof (ProofContext.add_fixes fixes ctxt |> snd)
wenzelm@30764
   299
  | init_elem (Assumes assms) (Context.Proof ctxt) =
haftmann@29361
   300
      let
wenzelm@30764
   301
        val assms' = Attrib.map_specs (Attrib.attribute_i (ProofContext.theory_of ctxt)) assms;
wenzelm@30764
   302
        val ctxt' = ctxt
wenzelm@30764
   303
          |> fold Variable.auto_fixes (maps (map fst o snd) assms')
wenzelm@30764
   304
          |> ProofContext.add_assms_i Assumption.assume_export assms' |> snd;
wenzelm@30764
   305
      in Context.Proof ctxt' end
wenzelm@30764
   306
  | init_elem (Defines defs) (Context.Proof ctxt) =
haftmann@29361
   307
      let
wenzelm@30764
   308
        val defs' = Attrib.map_specs (Attrib.attribute_i (ProofContext.theory_of ctxt)) defs;
wenzelm@30764
   309
        val ctxt' = ctxt
wenzelm@30764
   310
          |> fold Variable.auto_fixes (map (fst o snd) defs')
wenzelm@30764
   311
          |> ProofContext.add_assms_i LocalDefs.def_export (map (fn (attn, t) => (attn, [t])) defs')
wenzelm@30764
   312
          |> snd;
wenzelm@30764
   313
      in Context.Proof ctxt' end
wenzelm@30764
   314
  | init_elem (Notes (kind, facts)) (Context.Proof ctxt) =
haftmann@29361
   315
      let
haftmann@29361
   316
        val facts' = Attrib.map_facts (Attrib.attribute_i (ProofContext.theory_of ctxt)) facts
wenzelm@30764
   317
      in Context.Proof (ProofContext.note_thmss kind facts' ctxt |> snd) end
wenzelm@30764
   318
  | init_elem (Notes (kind, facts)) (Context.Theory thy) =
wenzelm@30764
   319
      let
wenzelm@30764
   320
        val facts' = Attrib.map_facts (Attrib.attribute_i thy) facts
wenzelm@30764
   321
      in Context.Theory (PureThy.note_thmss kind facts' thy |> snd) end
wenzelm@30764
   322
  | init_elem _ (Context.Theory _) = raise Fail "Bad context element in global theory";
haftmann@29361
   323
haftmann@29361
   324
in
haftmann@29361
   325
wenzelm@30764
   326
fun activate_declarations dep ctxt =
wenzelm@30764
   327
  let
wenzelm@30764
   328
    val context = Context.Proof ctxt;
wenzelm@30764
   329
    val thy = Context.theory_of context;
wenzelm@30764
   330
    val context' = roundup thy (K activate_decls) dep (get_idents context, context) |-> put_idents;
wenzelm@30764
   331
  in Context.the_proof context' end;
haftmann@29361
   332
wenzelm@30764
   333
fun activate_facts dep context =
wenzelm@30764
   334
  let
wenzelm@30764
   335
    val thy = Context.theory_of context;
wenzelm@30764
   336
    val activate = activate_notes init_elem (Element.transfer_morphism o Context.theory_of);
wenzelm@30764
   337
  in roundup thy activate dep (get_idents context, context) |-> put_idents end;
haftmann@29361
   338
haftmann@29361
   339
fun init name thy =
wenzelm@30764
   340
  activate_all name thy init_elem (Element.transfer_morphism o Context.theory_of)
wenzelm@30764
   341
    ([], Context.Proof (ProofContext.init thy)) |-> put_idents |> Context.proof_of;
haftmann@29361
   342
wenzelm@30764
   343
fun print_locale thy show_facts raw_name =
haftmann@29361
   344
  let
wenzelm@30764
   345
    val name = intern thy raw_name;
wenzelm@30764
   346
    val ctxt = init name thy;
wenzelm@30764
   347
    fun cons_elem (elem as Notes _) = show_facts ? cons elem
wenzelm@30764
   348
      | cons_elem elem = cons elem;
wenzelm@30764
   349
    val elems =
wenzelm@30764
   350
      activate_all name thy cons_elem (K (Element.transfer_morphism thy)) ([], [])
wenzelm@30764
   351
      |> snd |> rev;
haftmann@29361
   352
  in
wenzelm@30764
   353
    Pretty.big_list "locale elements:" (map (Pretty.chunks o Element.pretty_ctxt ctxt) elems)
wenzelm@30764
   354
    |> Pretty.writeln
wenzelm@30764
   355
  end;
haftmann@29361
   356
haftmann@29361
   357
end;
haftmann@29361
   358
haftmann@29361
   359
haftmann@29361
   360
(*** Registrations: interpretations in theories ***)
haftmann@29361
   361
wenzelm@30725
   362
structure Registrations = TheoryDataFun
haftmann@29361
   363
(
haftmann@29544
   364
  type T = ((string * (morphism * morphism)) * stamp) list;
haftmann@29392
   365
    (* FIXME mixins need to be stamped *)
haftmann@29361
   366
    (* registrations, in reverse order of declaration *)
haftmann@29361
   367
  val empty = [];
haftmann@29361
   368
  val extend = I;
haftmann@29392
   369
  val copy = I;
haftmann@29361
   370
  fun merge _ data : T = Library.merge (eq_snd op =) data;
haftmann@29361
   371
    (* FIXME consolidate with dependencies, consider one data slot only *)
haftmann@29361
   372
);
haftmann@29361
   373
haftmann@29392
   374
val get_registrations =
wenzelm@30764
   375
  Registrations.get #> map (#1 #> apsnd op $>);
haftmann@29361
   376
haftmann@29392
   377
fun add_registration (name, (base_morph, export)) thy =
haftmann@29392
   378
  roundup thy (fn _ => fn (name', morph') =>
wenzelm@30764
   379
    Registrations.map (cons ((name', (morph', export)), stamp ())))
wenzelm@30764
   380
    (name, base_morph) (get_idents (Context.Theory thy), thy) |> snd;
wenzelm@30764
   381
    (* FIXME |-> put_global_idents ?*)
haftmann@29361
   382
haftmann@29392
   383
fun amend_registration morph (name, base_morph) thy =
haftmann@29361
   384
  let
wenzelm@30764
   385
    val regs = map #1 (Registrations.get thy);
haftmann@29361
   386
    val base = instance_of thy name base_morph;
haftmann@29361
   387
    fun match (name', (morph', _)) =
haftmann@29361
   388
      name = name' andalso eq_list (op aconv) (base, instance_of thy name' morph');
haftmann@29361
   389
    val i = find_index match (rev regs);
wenzelm@30764
   390
    val _ =
wenzelm@30764
   391
      if i = ~1 then error ("No registration of locale " ^
haftmann@29361
   392
        quote (extern thy name) ^ " and parameter instantiation " ^
wenzelm@30764
   393
        space_implode " " (map (quote o Syntax.string_of_term_global thy) base) ^ " available")
haftmann@29361
   394
      else ();
haftmann@29361
   395
  in
wenzelm@30725
   396
    Registrations.map (nth_map (length regs - 1 - i)
haftmann@29361
   397
      (fn ((name, (base, export)), stamp) => ((name, (base $> morph, export)), stamp))) thy
haftmann@29361
   398
  end;
haftmann@29361
   399
haftmann@29361
   400
haftmann@29502
   401
haftmann@29361
   402
(*** Storing results ***)
haftmann@29361
   403
haftmann@29361
   404
(* Theorems *)
haftmann@29361
   405
haftmann@29361
   406
fun add_thmss loc kind args ctxt =
haftmann@29361
   407
  let
haftmann@29361
   408
    val ([Notes args'], ctxt') = Element.activate_i [Notes (kind, args)] ctxt;
haftmann@29361
   409
    val ctxt'' = ctxt' |> ProofContext.theory (
haftmann@29392
   410
      (change_locale loc o apfst o apsnd) (cons (args', stamp ()))
haftmann@29392
   411
        #>
haftmann@29361
   412
      (* Registrations *)
haftmann@29361
   413
      (fn thy => fold_rev (fn (name, morph) =>
haftmann@29361
   414
            let
haftmann@29361
   415
              val args'' = snd args' |> Element.facts_map (Element.morph_ctxt morph) |>
haftmann@29361
   416
                Attrib.map_facts (Attrib.attribute_i thy)
wenzelm@30438
   417
            in PureThy.note_thmss kind args'' #> snd end)
haftmann@29392
   418
        (get_registrations thy |> filter (fn (name, _) => name = loc)) thy))
haftmann@29361
   419
  in ctxt'' end;
haftmann@29361
   420
haftmann@29361
   421
haftmann@29361
   422
(* Declarations *)
haftmann@29361
   423
haftmann@29361
   424
local
haftmann@29361
   425
haftmann@29361
   426
fun decl_attrib decl phi = Thm.declaration_attribute (K (decl phi));
haftmann@29361
   427
haftmann@29361
   428
fun add_decls add loc decl =
wenzelm@30223
   429
  ProofContext.theory ((change_locale loc o apfst o apfst) (add (decl, stamp ()))) #>
haftmann@29361
   430
  add_thmss loc Thm.internalK
haftmann@29361
   431
    [((Binding.empty, [Attrib.internal (decl_attrib decl)]), [([Drule.dummy_thm], [])])];
haftmann@29361
   432
haftmann@29361
   433
in
haftmann@29361
   434
haftmann@29361
   435
val add_type_syntax = add_decls (apfst o cons);
haftmann@29361
   436
val add_term_syntax = add_decls (apsnd o cons);
haftmann@29361
   437
val add_declaration = add_decls (K I);
haftmann@29361
   438
haftmann@29361
   439
end;
haftmann@29361
   440
wenzelm@30725
   441
haftmann@29361
   442
(* Dependencies *)
haftmann@29361
   443
haftmann@29392
   444
fun add_dependency loc dep = (change_locale loc o apsnd) (cons (dep, stamp ()));
haftmann@29361
   445
haftmann@29361
   446
haftmann@29361
   447
(*** Reasoning about locales ***)
haftmann@29361
   448
wenzelm@30725
   449
(* Storage for witnesses, intro and unfold rules *)
haftmann@29361
   450
wenzelm@30725
   451
structure Thms = GenericDataFun
wenzelm@30725
   452
(
wenzelm@30725
   453
  type T = thm list * thm list * thm list;
wenzelm@30725
   454
  val empty = ([], [], []);
wenzelm@30725
   455
  val extend = I;
wenzelm@30725
   456
  fun merge _ ((witnesses1, intros1, unfolds1), (witnesses2, intros2, unfolds2)) =
wenzelm@30725
   457
   (Thm.merge_thms (witnesses1, witnesses2),
wenzelm@30725
   458
    Thm.merge_thms (intros1, intros2),
wenzelm@30725
   459
    Thm.merge_thms (unfolds1, unfolds2));
wenzelm@30725
   460
);
haftmann@29361
   461
wenzelm@30725
   462
val get_witnesses = #1 o Thms.get o Context.Proof;
wenzelm@30725
   463
val get_intros = #2 o Thms.get o Context.Proof;
wenzelm@30725
   464
val get_unfolds = #3 o Thms.get o Context.Proof;
haftmann@29361
   465
wenzelm@30725
   466
val witness_add =
wenzelm@30725
   467
  Thm.declaration_attribute (fn th => Thms.map (fn (x, y, z) => (Thm.add_thm th x, y, z)));
wenzelm@30725
   468
val intro_add =
wenzelm@30725
   469
  Thm.declaration_attribute (fn th => Thms.map (fn (x, y, z) => (x, Thm.add_thm th y, z)));
wenzelm@30725
   470
val unfold_add =
wenzelm@30725
   471
  Thm.declaration_attribute (fn th => Thms.map (fn (x, y, z) => (x, y, Thm.add_thm th z)));
haftmann@29361
   472
wenzelm@30725
   473
wenzelm@30725
   474
(* Tactic *)
wenzelm@30725
   475
wenzelm@30725
   476
fun intro_locales_tac eager ctxt =
haftmann@29361
   477
  Method.intros_tac
wenzelm@30725
   478
    (get_witnesses ctxt @ get_intros ctxt @ (if eager then get_unfolds ctxt else []));
haftmann@29361
   479
haftmann@29361
   480
val _ = Context.>> (Context.map_theory
wenzelm@30515
   481
 (Method.setup (Binding.name "intro_locales") (Scan.succeed (METHOD o intro_locales_tac false))
wenzelm@30515
   482
    "back-chain introduction rules of locales without unfolding predicates" #>
wenzelm@30515
   483
  Method.setup (Binding.name "unfold_locales") (Scan.succeed (METHOD o intro_locales_tac true))
wenzelm@30515
   484
    "back-chain all introduction rules of locales"));
haftmann@29361
   485
haftmann@29361
   486
end;
haftmann@29361
   487