src/Pure/Isar/locale.ML
author ballarin
Mon May 24 10:48:32 2010 +0200 (2010-05-24)
changeset 37103 6ea25bb157e1
parent 37102 785348a83a2b
child 37104 3877a6c45d57
permissions -rw-r--r--
Consistently use equality for registration lookup.
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@35798
    36
    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
haftmann@29361
    48
  (* Storing results *)
haftmann@29361
    49
  val add_thmss: string -> string -> (Attrib.binding * (thm list * Attrib.src list) list) list ->
haftmann@29361
    50
    Proof.context -> Proof.context
haftmann@29361
    51
  val add_declaration: string -> declaration -> Proof.context -> Proof.context
wenzelm@35798
    52
  val add_syntax_declaration: string -> declaration -> Proof.context -> Proof.context
haftmann@29361
    53
haftmann@29361
    54
  (* Activation *)
wenzelm@30764
    55
  val activate_declarations: string * morphism -> Proof.context -> Proof.context
wenzelm@30764
    56
  val activate_facts: string * morphism -> Context.generic -> Context.generic
haftmann@29361
    57
  val init: string -> theory -> Proof.context
haftmann@29361
    58
haftmann@29361
    59
  (* Reasoning about locales *)
wenzelm@30725
    60
  val get_witnesses: Proof.context -> thm list
wenzelm@30725
    61
  val get_intros: Proof.context -> thm list
wenzelm@30725
    62
  val get_unfolds: Proof.context -> thm list
wenzelm@30725
    63
  val witness_add: attribute
wenzelm@30725
    64
  val intro_add: attribute
wenzelm@30725
    65
  val unfold_add: attribute
haftmann@29361
    66
  val intro_locales_tac: bool -> Proof.context -> thm list -> tactic
haftmann@29361
    67
haftmann@31988
    68
  (* Registrations and dependencies *)
ballarin@32845
    69
  val add_registration: string * morphism -> (morphism * bool) option ->
ballarin@32845
    70
    morphism -> theory -> theory
ballarin@32845
    71
  val amend_registration: string * morphism -> morphism * bool ->
ballarin@32845
    72
    morphism -> theory -> theory
haftmann@32074
    73
  val add_dependency: string -> string * morphism -> morphism -> theory -> theory
haftmann@29361
    74
haftmann@29361
    75
  (* Diagnostic *)
haftmann@29361
    76
  val print_locales: theory -> unit
wenzelm@30344
    77
  val print_locale: theory -> bool -> xstring -> unit
ballarin@32804
    78
  val print_registrations: theory -> string -> unit
haftmann@29361
    79
end;
haftmann@29361
    80
haftmann@29361
    81
structure Locale: LOCALE =
haftmann@29361
    82
struct
haftmann@29361
    83
haftmann@29361
    84
datatype ctxt = datatype Element.ctxt;
haftmann@29361
    85
haftmann@29392
    86
haftmann@29392
    87
(*** Theory data ***)
haftmann@29361
    88
haftmann@29361
    89
datatype locale = Loc of {
haftmann@29392
    90
  (** static part **)
wenzelm@30755
    91
  parameters: (string * sort) list * ((string * typ) * mixfix) list,
haftmann@29361
    92
    (* type and term parameters *)
haftmann@29361
    93
  spec: term option * term list,
haftmann@29361
    94
    (* assumptions (as a single predicate expression) and defines *)
haftmann@29441
    95
  intros: thm option * thm option,
haftmann@29441
    96
  axioms: thm list,
haftmann@29392
    97
  (** dynamic part **)
ballarin@36096
    98
  syntax_decls: (declaration * serial) list,
wenzelm@35798
    99
    (* syntax declarations *)
ballarin@36096
   100
  notes: ((string * (Attrib.binding * (thm list * Attrib.src list) list) list) * serial) list,
haftmann@29361
   101
    (* theorem declarations *)
ballarin@36651
   102
  dependencies: ((string * (morphism * morphism)) * serial) list
haftmann@29361
   103
    (* locale dependencies (sublocale relation) *)
haftmann@29392
   104
};
haftmann@29361
   105
wenzelm@35798
   106
fun mk_locale ((parameters, spec, intros, axioms), ((syntax_decls, notes), dependencies)) =
haftmann@29441
   107
  Loc {parameters = parameters, intros = intros, axioms = axioms, spec = spec,
wenzelm@35798
   108
    syntax_decls = syntax_decls, notes = notes, dependencies = dependencies};
wenzelm@35798
   109
wenzelm@35798
   110
fun map_locale f (Loc {parameters, spec, intros, axioms, syntax_decls, notes, dependencies}) =
wenzelm@35798
   111
  mk_locale (f ((parameters, spec, intros, axioms), ((syntax_decls, notes), dependencies)));
wenzelm@30754
   112
wenzelm@35798
   113
fun merge_locale
wenzelm@35798
   114
 (Loc {parameters, spec, intros, axioms, syntax_decls, notes, dependencies},
wenzelm@35798
   115
  Loc {syntax_decls = syntax_decls', notes = notes', dependencies = dependencies', ...}) =
wenzelm@35798
   116
    mk_locale
haftmann@29441
   117
      ((parameters, spec, intros, axioms),
wenzelm@35798
   118
        ((merge (eq_snd op =) (syntax_decls, syntax_decls'),
haftmann@29441
   119
          merge (eq_snd op =) (notes, notes')),
haftmann@29441
   120
            merge (eq_snd op =) (dependencies, dependencies')));
haftmann@29361
   121
wenzelm@33522
   122
structure Locales = Theory_Data
haftmann@29361
   123
(
wenzelm@33095
   124
  type T = locale Name_Space.table;
wenzelm@33159
   125
  val empty : T = Name_Space.empty_table "locale";
haftmann@29361
   126
  val extend = I;
wenzelm@33522
   127
  val merge = Name_Space.join_tables (K merge_locale);
haftmann@29361
   128
);
haftmann@29361
   129
wenzelm@33095
   130
val intern = Name_Space.intern o #1 o Locales.get;
wenzelm@33095
   131
val extern = Name_Space.extern o #1 o Locales.get;
haftmann@29392
   132
wenzelm@30725
   133
val get_locale = Symtab.lookup o #2 o Locales.get;
wenzelm@30725
   134
val defined = Symtab.defined o #2 o Locales.get;
haftmann@29361
   135
wenzelm@30725
   136
fun the_locale thy name =
wenzelm@30725
   137
  (case get_locale thy name of
wenzelm@30725
   138
    SOME (Loc loc) => loc
wenzelm@30725
   139
  | NONE => error ("Unknown locale " ^ quote name));
haftmann@29361
   140
wenzelm@35798
   141
fun register_locale binding parameters spec intros axioms syntax_decls notes dependencies thy =
wenzelm@33095
   142
  thy |> Locales.map (Name_Space.define true (Sign.naming_of thy)
wenzelm@30725
   143
    (binding,
wenzelm@30725
   144
      mk_locale ((parameters, spec, intros, axioms),
ballarin@36096
   145
        ((map (fn decl => (decl, serial ())) syntax_decls, map (fn n => (n, serial ())) notes),
ballarin@36651
   146
          map (fn d => (d |> apsnd (rpair Morphism.identity), serial ())) dependencies))) #> snd);
ballarin@36651
   147
          (* FIXME *)
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@33095
   153
  Pretty.strs ("locales:" :: map #1 (Name_Space.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@29544
   170
fun dependencies_of thy name = the_locale thy name |>
haftmann@29544
   171
  #dependencies |> map fst;
haftmann@29544
   172
haftmann@29361
   173
haftmann@29361
   174
(*** Activate context elements of locale ***)
haftmann@29361
   175
haftmann@29361
   176
(** Identifiers: activated locales in theory or proof context **)
haftmann@29361
   177
ballarin@37103
   178
fun ident_eq ((n: string, ts), (m, ss)) = (m = n) andalso eq_list (op aconv) (ts, ss);
ballarin@37103
   179
fun ident_le thy ((n: string, ts), (m, ss)) = (m = n) andalso Pattern.matchess thy (ss, ts);
haftmann@29361
   180
haftmann@29361
   181
local
haftmann@29361
   182
wenzelm@30754
   183
datatype 'a delayed = Ready of 'a | ToDo of 'a delayed * 'a delayed;
haftmann@29361
   184
wenzelm@33519
   185
structure Identifiers = Generic_Data
haftmann@29361
   186
(
wenzelm@30754
   187
  type T = (string * term list) list delayed;
wenzelm@30754
   188
  val empty = Ready [];
haftmann@29361
   189
  val extend = I;
wenzelm@33519
   190
  val merge = ToDo;
haftmann@29361
   191
);
haftmann@29361
   192
ballarin@37103
   193
fun finish thy (ToDo (i1, i2)) = merge (ident_le thy) (finish thy i1, finish thy i2)
haftmann@29361
   194
  | finish _ (Ready ids) = ids;
haftmann@29361
   195
haftmann@29361
   196
val _ = Context.>> (Context.map_theory (Theory.at_begin (fn thy =>
wenzelm@30725
   197
  (case Identifiers.get (Context.Theory thy) of
wenzelm@30725
   198
    Ready _ => NONE
wenzelm@30725
   199
  | ids => SOME (Context.theory_map (Identifiers.put (Ready (finish thy ids))) thy)))));
haftmann@29361
   200
wenzelm@30764
   201
in
haftmann@29361
   202
wenzelm@30764
   203
val get_idents = (fn Ready ids => ids) o Identifiers.get;
wenzelm@30764
   204
val put_idents = Identifiers.put o Ready;
haftmann@29361
   205
haftmann@29361
   206
end;
haftmann@29361
   207
haftmann@29361
   208
haftmann@29361
   209
(** Resolve locale dependencies in a depth-first fashion **)
haftmann@29361
   210
haftmann@29361
   211
local
haftmann@29361
   212
haftmann@29361
   213
val roundup_bound = 120;
haftmann@29361
   214
ballarin@32803
   215
fun add thy depth export (name, morph) (deps, marked) =
haftmann@29361
   216
  if depth > roundup_bound
haftmann@29361
   217
  then error "Roundup bound exceeded (sublocale relation probably not terminating)."
haftmann@29361
   218
  else
haftmann@29361
   219
    let
wenzelm@30754
   220
      val dependencies = dependencies_of thy name;
ballarin@32803
   221
      val instance = instance_of thy name (morph $> export);
haftmann@29361
   222
    in
ballarin@37103
   223
      if member (ident_le thy) marked (name, instance)
haftmann@29361
   224
      then (deps, marked)
haftmann@29361
   225
      else
haftmann@29361
   226
        let
ballarin@36651
   227
          val dependencies' = map (fn (name, (morph', export')) => (name, morph' $> export' $> morph)) dependencies;
haftmann@29361
   228
          val marked' = (name, instance) :: marked;
ballarin@32803
   229
          val (deps', marked'') = fold_rev (add thy (depth + 1) export) dependencies' ([], marked');
haftmann@29361
   230
        in
haftmann@29361
   231
          ((name, morph) :: deps' @ deps, marked'')
haftmann@29361
   232
        end
haftmann@29361
   233
    end;
haftmann@29361
   234
haftmann@29361
   235
in
haftmann@29361
   236
ballarin@33541
   237
(* Note that while identifiers always have the external (exported) view, activate_dep
ballarin@32803
   238
  is presented with the internal view. *)
ballarin@32803
   239
ballarin@32803
   240
fun roundup thy activate_dep export (name, morph) (marked, input) =
haftmann@29361
   241
  let
haftmann@29361
   242
    (* Find all dependencies incuding new ones (which are dependencies enriching
haftmann@29361
   243
      existing registrations). *)
ballarin@32803
   244
    val (dependencies, marked') = add thy 0 export (name, morph) ([], []);
ballarin@32800
   245
    (* Filter out fragments from marked; these won't be activated. *)
haftmann@29361
   246
    val dependencies' = filter_out (fn (name, morph) =>
ballarin@37103
   247
      member (ident_le thy) marked (name, instance_of thy name (morph $> export))) dependencies;
haftmann@29361
   248
  in
ballarin@37103
   249
    (merge (ident_le thy) (marked, marked'), input |> fold_rev activate_dep dependencies')
haftmann@29361
   250
  end;
haftmann@29361
   251
haftmann@29361
   252
end;
haftmann@29361
   253
haftmann@29361
   254
haftmann@29361
   255
(* Declarations, facts and entire locale content *)
haftmann@29361
   256
wenzelm@35798
   257
fun activate_syntax_decls (name, morph) context =
haftmann@29361
   258
  let
wenzelm@30764
   259
    val thy = Context.theory_of context;
wenzelm@35798
   260
    val {syntax_decls, ...} = the_locale thy name;
haftmann@29361
   261
  in
wenzelm@30764
   262
    context
wenzelm@35798
   263
    |> fold_rev (fn (decl, _) => decl morph) syntax_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@30773
   288
    val activate = activate_notes activ_elem transfer thy;
wenzelm@30764
   289
  in
ballarin@32803
   290
    roundup thy activate Morphism.identity (name, Morphism.identity) (marked, input')
haftmann@29361
   291
  end;
haftmann@29361
   292
haftmann@29361
   293
haftmann@29361
   294
(** Public activation functions **)
haftmann@29361
   295
wenzelm@30775
   296
fun activate_declarations dep = Context.proof_map (fn context =>
wenzelm@30764
   297
  let
wenzelm@30764
   298
    val thy = Context.theory_of context;
wenzelm@35798
   299
  in
wenzelm@35798
   300
    roundup thy activate_syntax_decls Morphism.identity dep (get_idents context, context)
wenzelm@35798
   301
    |-> put_idents
wenzelm@35798
   302
  end);
haftmann@29361
   303
wenzelm@30764
   304
fun activate_facts dep context =
wenzelm@30764
   305
  let
wenzelm@30764
   306
    val thy = Context.theory_of context;
wenzelm@30775
   307
    val activate = activate_notes Element.init (Element.transfer_morphism o Context.theory_of) thy;
ballarin@32803
   308
  in roundup thy activate Morphism.identity dep (get_idents context, context) |-> put_idents end;
haftmann@29361
   309
haftmann@29361
   310
fun init name thy =
wenzelm@30775
   311
  activate_all name thy Element.init (Element.transfer_morphism o Context.theory_of)
wenzelm@36610
   312
    ([], Context.Proof (ProofContext.init_global thy)) |-> put_idents |> Context.proof_of;
haftmann@29361
   313
wenzelm@30764
   314
fun print_locale thy show_facts raw_name =
haftmann@29361
   315
  let
wenzelm@30764
   316
    val name = intern thy raw_name;
wenzelm@30764
   317
    val ctxt = init name thy;
wenzelm@30764
   318
    fun cons_elem (elem as Notes _) = show_facts ? cons elem
wenzelm@30764
   319
      | cons_elem elem = cons elem;
wenzelm@30764
   320
    val elems =
wenzelm@30764
   321
      activate_all name thy cons_elem (K (Element.transfer_morphism thy)) ([], [])
wenzelm@30764
   322
      |> snd |> rev;
haftmann@29361
   323
  in
wenzelm@30764
   324
    Pretty.big_list "locale elements:" (map (Pretty.chunks o Element.pretty_ctxt ctxt) elems)
wenzelm@30764
   325
    |> Pretty.writeln
wenzelm@30764
   326
  end;
haftmann@29361
   327
haftmann@29361
   328
haftmann@29361
   329
(*** Registrations: interpretations in theories ***)
haftmann@29361
   330
wenzelm@33522
   331
structure Registrations = Theory_Data
haftmann@29361
   332
(
ballarin@36088
   333
  type T = ((string * (morphism * morphism)) * serial) list *
ballarin@36090
   334
    (* registrations, in reverse order of declaration;
ballarin@36090
   335
       serial points to mixin list *)
ballarin@36088
   336
    (serial * ((morphism * bool) * serial) list) list;
ballarin@36090
   337
    (* alist of mixin lists, per list mixins in reverse order of declaration;
ballarin@36090
   338
       lists indexed by registration serial,
ballarin@36090
   339
       entries for empty lists may be omitted *)
ballarin@32801
   340
  val empty = ([], []);
haftmann@29361
   341
  val extend = I;
wenzelm@33522
   342
  fun merge ((r1, m1), (r2, m2)) : T =
ballarin@32801
   343
    (Library.merge (eq_snd op =) (r1, r2),
ballarin@32801
   344
      AList.join (op =) (K (Library.merge (eq_snd op =))) (m1, m2));
haftmann@29361
   345
    (* FIXME consolidate with dependencies, consider one data slot only *)
haftmann@29361
   346
);
haftmann@29361
   347
ballarin@32801
   348
ballarin@32801
   349
(* Primitive operations *)
ballarin@32801
   350
ballarin@36095
   351
fun add_reg export (dep, morph) =
ballarin@36095
   352
  Registrations.map (apfst (cons ((dep, (morph, export)), serial ())));
haftmann@31988
   353
ballarin@36095
   354
fun add_mixin serial' mixin =
ballarin@36095
   355
  (* registration to be amended identified by its serial id *)
ballarin@36095
   356
  Registrations.map (apsnd (AList.map_default (op =) (serial', []) (cons (mixin, serial ()))));
ballarin@32801
   357
ballarin@32804
   358
fun get_mixins thy (name, morph) =
ballarin@32804
   359
  let
ballarin@32804
   360
    val (regs, mixins) = Registrations.get thy;
ballarin@32804
   361
  in
ballarin@37103
   362
    case find_first (fn ((name', (morph', export')), _) => ident_eq
ballarin@32804
   363
      ((name', instance_of thy name' (morph' $> export')), (name, instance_of thy name morph))) (rev regs) of
ballarin@32804
   364
      NONE => []
ballarin@36088
   365
    | SOME (_, serial) => the_default [] (AList.lookup (op =) mixins serial)
ballarin@32804
   366
  end;
ballarin@32804
   367
ballarin@32804
   368
fun collect_mixins thy (name, morph) =
ballarin@32804
   369
  roundup thy (fn dep => fn mixins =>
ballarin@32804
   370
    merge (eq_snd op =) (mixins, get_mixins thy dep)) Morphism.identity (name, morph) ([], [])
ballarin@37102
   371
  |> snd |> filter (snd o fst);  (* only inheritable mixins *) (* FIXME *)
ballarin@36095
   372
  (* FIXME refactor usage *)
ballarin@32804
   373
ballarin@36091
   374
fun compose_mixins mixins =
ballarin@36091
   375
  fold_rev Morphism.compose (map (fst o fst) mixins) Morphism.identity;
ballarin@36091
   376
ballarin@36091
   377
fun reg_morph mixins ((name, (base, export)), serial) =
ballarin@36091
   378
  let val mix = the_default [] (AList.lookup (op =) mixins serial) |> compose_mixins;
ballarin@36091
   379
  in (name, base $> mix $> export) end;
ballarin@36091
   380
ballarin@36091
   381
fun these_registrations thy name = Registrations.get thy
ballarin@36091
   382
  |>> filter (curry (op =) name o fst o fst)
ballarin@36095
   383
  (* with inherited mixins *)
ballarin@36091
   384
  |-> (fn regs => fn _ => map (fn ((name, (base, export)) ,_) =>
ballarin@36091
   385
    (name, base $> (collect_mixins thy (name, base $> export) |> compose_mixins) $> export)) regs);
ballarin@36091
   386
ballarin@37101
   387
fun all_registrations thy = Registrations.get thy (* FIXME clone *)
ballarin@37101
   388
  (* with inherited mixins *)
ballarin@37101
   389
  |-> (fn regs => fn _ => map (fn ((name, (base, export)) ,_) =>
ballarin@37101
   390
    (name, base $> (collect_mixins thy (name, base $> export) |> compose_mixins) $> export)) regs);
ballarin@32804
   391
ballarin@32804
   392
fun activate_notes' activ_elem transfer thy export (name, morph) input =
ballarin@32804
   393
  let
ballarin@32804
   394
    val {notes, ...} = the_locale thy name;
ballarin@32804
   395
    fun activate ((kind, facts), _) input =
ballarin@32804
   396
      let
ballarin@32804
   397
        val mixin = collect_mixins thy (name, morph $> export) |> compose_mixins;
ballarin@32804
   398
        val facts' = facts |> Element.facts_map (Element.morph_ctxt (transfer input $> morph $> mixin $> export))
ballarin@32804
   399
      in activ_elem (Notes (kind, facts')) input end;
ballarin@32804
   400
  in
ballarin@32804
   401
    fold_rev activate notes input
ballarin@32804
   402
  end;
ballarin@32804
   403
ballarin@32804
   404
fun activate_facts' export dep context =
ballarin@32804
   405
  let
ballarin@32804
   406
    val thy = Context.theory_of context;
ballarin@32804
   407
    val activate = activate_notes' Element.init (Element.transfer_morphism o Context.theory_of) thy export;
ballarin@32804
   408
  in roundup thy activate export dep (get_idents context, context) |-> put_idents end;
ballarin@32804
   409
ballarin@32804
   410
ballarin@32804
   411
(* Diagnostic *)
ballarin@32804
   412
ballarin@36652
   413
fun pretty_reg thy (name, morph) =
ballarin@32804
   414
  let
ballarin@32804
   415
    val name' = extern thy name;
wenzelm@36610
   416
    val ctxt = ProofContext.init_global thy;
ballarin@32804
   417
    fun prt_qual (qual, mand) = Pretty.str (qual ^ (if mand then "!" else "?"));
ballarin@32804
   418
    fun prt_quals qs = Pretty.separate "." (map prt_qual qs) |> Pretty.block;
ballarin@32804
   419
    val prt_term = Pretty.quote o Syntax.pretty_term ctxt;
ballarin@32804
   420
    fun prt_term' t = if !show_types
ballarin@32804
   421
      then Pretty.block [prt_term t, Pretty.brk 1, Pretty.str "::",
ballarin@32804
   422
        Pretty.brk 1, (Pretty.quote o Syntax.pretty_typ ctxt) (type_of t)]
ballarin@32804
   423
      else prt_term t;
ballarin@32804
   424
    fun prt_inst ts =
ballarin@32804
   425
      Pretty.block (Pretty.breaks (Pretty.str name' :: map prt_term' ts));
ballarin@36652
   426
ballarin@36652
   427
    val qs = Binding.name "x" |> Morphism.binding morph |> Binding.prefix_of;
ballarin@36652
   428
    val ts = instance_of thy name morph;
ballarin@32804
   429
  in
ballarin@36652
   430
    case qs of
ballarin@36652
   431
       [] => prt_inst ts
ballarin@36652
   432
     | qs => Pretty.block [prt_quals qs, Pretty.brk 1, Pretty.str ":",
ballarin@36652
   433
         Pretty.brk 1, prt_inst ts]
ballarin@32804
   434
  end;
ballarin@32801
   435
ballarin@36652
   436
fun print_registrations thy raw_name =
ballarin@36652
   437
  (case these_registrations thy (intern thy raw_name) of
ballarin@36652
   438
      [] => Pretty.str ("no interpretations")
ballarin@36652
   439
    | regs => Pretty.big_list "interpretations:" (map (pretty_reg thy) (rev regs)))
ballarin@36652
   440
  |> Pretty.writeln;
ballarin@36652
   441
ballarin@32801
   442
ballarin@32801
   443
(* Add and extend registrations *)
ballarin@32801
   444
ballarin@32804
   445
fun amend_registration (name, morph) mixin export thy =
ballarin@32804
   446
  let
ballarin@32804
   447
    val regs = Registrations.get thy |> fst;
ballarin@32804
   448
    val base = instance_of thy name (morph $> export);
ballarin@32804
   449
    fun match ((name', (morph', export')), _) =
ballarin@37103
   450
      ident_eq ((name, base), (name', instance_of thy name' (morph' $> export)));
ballarin@32804
   451
  in
ballarin@32804
   452
    case find_first match (rev regs) of
ballarin@32804
   453
        NONE => error ("No interpretation of locale " ^
ballarin@32804
   454
          quote (extern thy name) ^ " and\nparameter instantiation " ^
ballarin@32804
   455
          space_implode " " (map (quote o Syntax.string_of_term_global thy) base) ^
ballarin@32804
   456
          " available")
ballarin@36095
   457
      | SOME (_, serial') => add_mixin serial' mixin thy
ballarin@32804
   458
  end;
ballarin@32804
   459
ballarin@32801
   460
(* Note that a registration that would be subsumed by an existing one will not be
ballarin@32801
   461
   generated, and it will not be possible to amend it. *)
ballarin@32801
   462
ballarin@32804
   463
fun add_registration (name, base_morph) mixin export thy =
ballarin@32801
   464
  let
ballarin@37101
   465
    val mix = case mixin of NONE => Morphism.identity
ballarin@37101
   466
          | SOME (mix, _) => mix;
ballarin@37102
   467
    val morph = base_morph $> mix;
ballarin@37102
   468
    val inst = instance_of thy name morph;
ballarin@32801
   469
  in
ballarin@37103
   470
    if member (ident_le thy) (get_idents (Context.Theory thy)) (name, inst)
ballarin@32801
   471
    then thy
ballarin@32801
   472
    else
ballarin@36095
   473
      (get_idents (Context.Theory thy), thy)
ballarin@36095
   474
      (* add new registrations with inherited mixins *)
ballarin@37102
   475
      |> roundup thy (add_reg export) export (name, morph)
ballarin@36095
   476
      |> snd
ballarin@36095
   477
      (* add mixin *)
ballarin@36095
   478
      |> (case mixin of NONE => I
ballarin@37102
   479
           | SOME mixin => amend_registration (name, morph) mixin export)
ballarin@36095
   480
      (* activate import hierarchy as far as not already active *)
ballarin@37102
   481
      |> Context.theory_map (activate_facts' export (name, morph))
ballarin@32801
   482
  end;
ballarin@32801
   483
haftmann@29361
   484
haftmann@31988
   485
(*** Dependencies ***)
haftmann@31988
   486
ballarin@37102
   487
fun add_dependency loc (name, morph) export thy =
ballarin@37102
   488
  let
ballarin@37102
   489
    val thy' = (change_locale loc o apsnd) (cons ((name, (morph, export)), serial ())) thy;
ballarin@37102
   490
    val (_, regs) = fold_rev (roundup thy' cons export)
ballarin@37102
   491
      (all_registrations thy') (get_idents (Context.Theory thy'), []);
ballarin@37102
   492
  in
ballarin@37102
   493
    thy'
ballarin@37102
   494
    |> fold_rev (fn dep => add_registration dep NONE export) regs
ballarin@37102
   495
  end;
haftmann@31988
   496
haftmann@31988
   497
haftmann@29361
   498
(*** Storing results ***)
haftmann@29361
   499
haftmann@29361
   500
(* Theorems *)
haftmann@29361
   501
haftmann@29361
   502
fun add_thmss loc kind args ctxt =
haftmann@29361
   503
  let
wenzelm@30777
   504
    val (Notes args', ctxt') = Element.activate_i (Notes (kind, args)) ctxt;
haftmann@29361
   505
    val ctxt'' = ctxt' |> ProofContext.theory (
ballarin@36088
   506
      (change_locale loc o apfst o apsnd) (cons (args', serial ()))
haftmann@29392
   507
        #>
haftmann@29361
   508
      (* Registrations *)
haftmann@31988
   509
      (fn thy => fold_rev (fn (_, morph) =>
haftmann@29361
   510
            let
haftmann@29361
   511
              val args'' = snd args' |> Element.facts_map (Element.morph_ctxt morph) |>
haftmann@29361
   512
                Attrib.map_facts (Attrib.attribute_i thy)
wenzelm@30438
   513
            in PureThy.note_thmss kind args'' #> snd end)
haftmann@31988
   514
        (these_registrations thy loc) thy))
haftmann@29361
   515
  in ctxt'' end;
haftmann@29361
   516
haftmann@29361
   517
haftmann@29361
   518
(* Declarations *)
haftmann@29361
   519
wenzelm@35798
   520
fun add_declaration loc decl =
wenzelm@33643
   521
  add_thmss loc ""
wenzelm@35798
   522
    [((Binding.conceal Binding.empty,
wenzelm@35798
   523
        [Attrib.internal (fn phi => Thm.declaration_attribute (K (decl phi)))]),
wenzelm@33278
   524
      [([Drule.dummy_thm], [])])];
haftmann@29361
   525
wenzelm@35798
   526
fun add_syntax_declaration loc decl =
ballarin@36096
   527
  ProofContext.theory ((change_locale loc o apfst o apfst) (cons (decl, serial ())))
wenzelm@35798
   528
  #> add_declaration loc decl;
haftmann@29361
   529
wenzelm@30725
   530
haftmann@29361
   531
(*** Reasoning about locales ***)
haftmann@29361
   532
wenzelm@30725
   533
(* Storage for witnesses, intro and unfold rules *)
haftmann@29361
   534
wenzelm@33519
   535
structure Thms = Generic_Data
wenzelm@30725
   536
(
wenzelm@30725
   537
  type T = thm list * thm list * thm list;
wenzelm@30725
   538
  val empty = ([], [], []);
wenzelm@30725
   539
  val extend = I;
wenzelm@33519
   540
  fun merge ((witnesses1, intros1, unfolds1), (witnesses2, intros2, unfolds2)) =
wenzelm@30725
   541
   (Thm.merge_thms (witnesses1, witnesses2),
wenzelm@30725
   542
    Thm.merge_thms (intros1, intros2),
wenzelm@30725
   543
    Thm.merge_thms (unfolds1, unfolds2));
wenzelm@30725
   544
);
haftmann@29361
   545
wenzelm@30725
   546
val get_witnesses = #1 o Thms.get o Context.Proof;
wenzelm@30725
   547
val get_intros = #2 o Thms.get o Context.Proof;
wenzelm@30725
   548
val get_unfolds = #3 o Thms.get o Context.Proof;
haftmann@29361
   549
wenzelm@30725
   550
val witness_add =
wenzelm@30725
   551
  Thm.declaration_attribute (fn th => Thms.map (fn (x, y, z) => (Thm.add_thm th x, y, z)));
wenzelm@30725
   552
val intro_add =
wenzelm@30725
   553
  Thm.declaration_attribute (fn th => Thms.map (fn (x, y, z) => (x, Thm.add_thm th y, z)));
wenzelm@30725
   554
val unfold_add =
wenzelm@30725
   555
  Thm.declaration_attribute (fn th => Thms.map (fn (x, y, z) => (x, y, Thm.add_thm th z)));
haftmann@29361
   556
wenzelm@30725
   557
wenzelm@30725
   558
(* Tactic *)
wenzelm@30725
   559
ballarin@36093
   560
fun gen_intro_locales_tac intros_tac eager ctxt =
ballarin@36093
   561
  intros_tac
wenzelm@30725
   562
    (get_witnesses ctxt @ get_intros ctxt @ (if eager then get_unfolds ctxt else []));
haftmann@29361
   563
ballarin@36093
   564
val intro_locales_tac = gen_intro_locales_tac Method.intros_tac;
ballarin@36093
   565
val try_intro_locales_tac= gen_intro_locales_tac Method.try_intros_tac;
ballarin@36093
   566
haftmann@29361
   567
val _ = Context.>> (Context.map_theory
ballarin@36093
   568
 (Method.setup (Binding.name "intro_locales") (Scan.succeed (METHOD o try_intro_locales_tac false))
wenzelm@30515
   569
    "back-chain introduction rules of locales without unfolding predicates" #>
ballarin@36093
   570
  Method.setup (Binding.name "unfold_locales") (Scan.succeed (METHOD o try_intro_locales_tac true))
wenzelm@30515
   571
    "back-chain all introduction rules of locales"));
haftmann@29361
   572
haftmann@29361
   573
end;