src/HOL/Tools/record_package.ML
author wenzelm
Mon, 04 May 1998 21:07:57 +0200
changeset 4894 32187e0b8b48
parent 4890 f0a24bad990a
child 4895 0fad2acb45fb
permissions -rw-r--r--
'more' selector; thms: selector_convs, update_convs; tuned;
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
     1
(*  Title:      HOL/Tools/record_package.ML
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
     2
    ID:         $Id$
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
     3
    Author:     Wolfgang Naraschewski and Markus Wenzel, TU Muenchen
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
     4
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
     5
Extensible records with structural subtyping in HOL.
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
     6
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
     7
TODO:
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
     8
  - field types: typedef;
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
     9
  - trfuns for record types;
4894
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
    10
  - operations and theorems: split, split_all/ex, ...;
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
    11
  - field constructor: specific type for snd component (?);
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
    12
  - update_more operation;
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
    13
  - "..." for "... = more", "?..." for "?... = ?more";
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
    14
*)
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
    15
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
    16
signature RECORD_PACKAGE =
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
    17
sig
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
    18
  val moreS: sort
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
    19
  val mk_fieldT: (string * typ) * typ -> typ
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
    20
  val dest_fieldT: typ -> (string * typ) * typ
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
    21
  val mk_field: (string * term) * term -> term
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
    22
  val mk_fst: term -> term
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
    23
  val mk_snd: term -> term
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
    24
  val mk_recordT: (string * typ) list * typ -> typ
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
    25
  val dest_recordT: typ -> (string * typ) list * typ
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
    26
  val mk_record: (string * term) list * term -> term
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
    27
  val mk_sel: term -> string -> term
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
    28
  val mk_update: term -> string * term -> term
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
    29
  val print_records: theory -> unit
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
    30
  val add_record: (string list * bstring) -> string option
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
    31
    -> (bstring * string) list -> theory -> theory
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
    32
  val add_record_i: (string list * bstring) -> (typ list * string) option
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
    33
    -> (bstring * typ) list -> theory -> theory
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
    34
  val setup: (theory -> theory) list
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
    35
end;
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
    36
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
    37
structure RecordPackage: RECORD_PACKAGE =
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
    38
struct
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
    39
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
    40
4894
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
    41
(*** utilities ***)
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
    42
4894
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
    43
(* string suffixes *)
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
    44
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
    45
fun suffix sfx s = s ^ sfx;
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
    46
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
    47
fun unsuffix sfx s =
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
    48
  let
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
    49
    val cs = explode s;
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
    50
    val prfx_len = size s - size sfx;
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
    51
  in
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
    52
    if prfx_len >= 0 andalso implode (drop (prfx_len, cs)) = sfx then
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
    53
      implode (take (prfx_len, cs))
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
    54
    else raise LIST "unsuffix"
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
    55
  end;
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
    56
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
    57
4894
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
    58
(* definitions and equations *)
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
    59
4894
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
    60
infix 0 :== === ;
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
    61
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
    62
val (op :==) = Logic.mk_defpair;
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
    63
val (op ===) = HOLogic.mk_Trueprop o HOLogic.mk_eq;
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
    64
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
    65
fun get_defs thy specs = map (PureThy.get_tthm thy o fst) specs;
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
    66
fun add_simps ss simps = Simplifier.addsimps (ss, map Attribute.thm_of simps);
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
    67
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
    68
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
    69
(* proof by simplification *)
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
    70
4894
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
    71
fun prove_simp opt_ss simps =
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
    72
  let
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
    73
    val ss = add_simps (if_none opt_ss HOL_basic_ss) simps;
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
    74
    fun prove thy goal =
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
    75
      Attribute.tthm_of
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
    76
        (Goals.prove_goalw_cterm [] (Thm.cterm_of (Theory.sign_of thy) goal)
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
    77
          (K [ALLGOALS (Simplifier.simp_tac ss)])
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
    78
        handle ERROR => error ("The error(s) above occurred while trying to prove "
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
    79
          ^ quote (Sign.string_of_term (Theory.sign_of thy) goal)));
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
    80
  in prove end;
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
    81
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
    82
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
    83
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
    84
(*** syntax operations ***)
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
    85
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
    86
(** name components **)
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
    87
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
    88
val moreN = "more";
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
    89
val schemeN = "_scheme";
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
    90
val fieldN = "_field";
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
    91
val field_typeN = "_field_type";
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
    92
val fstN = "_fst";
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
    93
val sndN = "_snd";
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
    94
val updateN = "_update";
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
    95
val makeN = "make";
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
    96
val make_schemeN = "make_scheme";
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
    97
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
    98
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
    99
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   100
(** tuple operations **)
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   101
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   102
(* more type class *)
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   103
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   104
val moreS = ["more"];
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   105
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   106
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   107
(* types *)
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   108
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   109
fun mk_fieldT ((c, T), U) = Type (suffix field_typeN c, [T, U]);
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   110
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   111
fun dest_fieldT (typ as Type (c_field_type, [T, U])) =
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   112
      (case try (unsuffix field_typeN) c_field_type of
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   113
        None => raise TYPE ("dest_fieldT", [typ], [])
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   114
      | Some c => ((c, T), U))
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   115
  | dest_fieldT typ = raise TYPE ("dest_fieldT", [typ], []);
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   116
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   117
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   118
(* constructors *)
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   119
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   120
fun mk_fieldC U (c, T) = (suffix fieldN c, T --> U --> mk_fieldT ((c, T), U));
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   121
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   122
fun mk_field ((c, t), u) =
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   123
  let val T = fastype_of t and U = fastype_of u
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   124
  in Const (suffix fieldN c, [T, U] ---> mk_fieldT ((c, T), U)) $ t $ u end;
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   125
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   126
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   127
(* destructors *)
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   128
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   129
fun mk_fstC U (c, T) = (suffix fstN c, mk_fieldT ((c, T), U) --> T);
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   130
fun mk_sndC U (c, T) = (suffix sndN c, mk_fieldT ((c, T), U) --> U);
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   131
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   132
fun dest_field fst_or_snd p =
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   133
  let
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   134
    val pT = fastype_of p;
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   135
    val ((c, T), U) = dest_fieldT pT;
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   136
    val (destN, destT) = if fst_or_snd then (fstN, T) else (sndN, U);
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   137
  in Const (suffix destN c, pT --> destT) $ p end;
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   138
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   139
val mk_fst = dest_field true;
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   140
val mk_snd = dest_field false;
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   141
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   142
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   143
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   144
(** record operations **)
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   145
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   146
(* types *)
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   147
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   148
val mk_recordT = foldr mk_fieldT;
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   149
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   150
fun dest_recordT T =
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   151
  (case try dest_fieldT T of
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   152
    None => ([], T)
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   153
  | Some (c_T, U) => apfst (cons c_T) (dest_recordT U));
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   154
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   155
fun find_fieldT c rT =
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   156
  (case assoc (fst (dest_recordT rT), c) of
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   157
    None => raise TYPE ("find_field: " ^ c, [rT], [])
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   158
  | Some T => T);
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   159
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   160
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   161
(* constructors *)
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   162
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   163
val mk_record = foldr mk_field;
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   164
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   165
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   166
(* selectors *)
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   167
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   168
fun mk_selC rT (c, T) = (c, rT --> T);
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   169
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   170
fun mk_sel r c =
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   171
  let val rT = fastype_of r
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   172
  in Const (mk_selC rT (c, find_fieldT c rT)) $ r end;
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   173
4894
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   174
val mk_moreC = mk_selC;
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   175
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   176
fun mk_more r c =
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   177
  let val rT = fastype_of r
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   178
  in Const (mk_moreC rT (c, snd (dest_recordT rT))) $ r end;
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   179
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   180
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   181
(* updates *)
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   182
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   183
fun mk_updateC rT (c, T) = (suffix updateN c, T --> rT --> rT);
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   184
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   185
fun mk_update r (c, x) =
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   186
  let val rT = fastype_of r
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   187
  in Const (mk_updateC rT (c, find_fieldT c rT)) $ x $ r end;
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   188
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   189
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   190
(* make *)
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   191
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   192
fun mk_makeC rT (c, Ts) = (c, Ts ---> rT);
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   193
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   194
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   195
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   196
(** concrete syntax for records **)
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   197
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   198
(* parse translations *)
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   199
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   200
fun field_tr (Const ("_field", _) $ Free (name, _) $ arg) =
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   201
      Syntax.const (suffix fieldN name) $ arg
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   202
  | field_tr t = raise TERM ("field_tr", [t]);
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   203
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   204
fun fields_tr (Const ("_fields", _) $ field $ fields) =
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   205
      field_tr field :: fields_tr fields
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   206
  | fields_tr field = [field_tr field];
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   207
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   208
fun record_tr (*"_record"*) [fields] =
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   209
      foldr (op $) (fields_tr fields, HOLogic.unit)
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   210
  | record_tr (*"_record"*) ts = raise TERM ("record_tr", ts);
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   211
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   212
fun record_scheme_tr (*"_record_scheme"*) [fields, more] =
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   213
      foldr (op $) (fields_tr fields, more)
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   214
  | record_scheme_tr (*"_record_scheme"*) ts = raise TERM ("record_scheme_tr", ts);
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   215
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   216
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   217
(* print translations *)
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   218
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   219
fun fields_tr' (tm as Const (name_field, _) $ arg $ more) =
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   220
      (case try (unsuffix fieldN) name_field of
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   221
        Some name =>
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   222
          apfst (cons (Syntax.const "_field" $ Syntax.free name $ arg)) (fields_tr' more)
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   223
      | None => ([], tm))
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   224
  | fields_tr' tm = ([], tm);
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   225
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   226
fun record_tr' tm =
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   227
  let
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   228
    val (fields, more) = fields_tr' tm;
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   229
    val fields' = foldr1 (fn (f, fs) => Syntax.const "_fields" $ f $ fs) fields;
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   230
  in
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   231
    if HOLogic.is_unit more then Syntax.const "_record" $ fields'
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   232
    else Syntax.const "_record_scheme" $ fields' $ more
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   233
  end;
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   234
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   235
fun field_tr' name [arg, more] = record_tr' (Syntax.const name $ arg $ more)
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   236
  | field_tr' _ _ = raise Match;
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   237
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   238
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   239
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   240
(*** extend theory by record definition ***)
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   241
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   242
(** record info **)
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   243
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   244
(* type record_info and parent_info *)
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   245
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   246
type record_info =
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   247
 {args: (string * sort) list,
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   248
  parent: (typ list * string) option,
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   249
  fields: (string * typ) list,
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   250
  simpset: Simplifier.simpset};
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   251
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   252
type parent_info =
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   253
 {name: string,
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   254
  fields: (string * typ) list,
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   255
  simpset: Simplifier.simpset};
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   256
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   257
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   258
(* theory data *)
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   259
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   260
val recordsK = "HOL/records";
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   261
exception Records of record_info Symtab.table;
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   262
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   263
fun print_records thy = Display.print_data thy recordsK;
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   264
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   265
local
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   266
  val empty = Records Symtab.empty;
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   267
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   268
  fun prep_ext (x as Records _) = x;
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   269
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   270
  fun merge (Records tab1, Records tab2) =
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   271
    Records (Symtab.merge (K true) (tab1, tab2));
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   272
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   273
  fun print sg (Records tab) =
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   274
    let
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   275
      val prt_typ = Sign.pretty_typ sg;
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   276
      val ext_const = Sign.cond_extern sg Sign.constK;
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   277
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   278
      fun pretty_parent None = []
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   279
        | pretty_parent (Some (Ts, name)) =
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   280
            [Pretty.block [prt_typ (Type (name, Ts)), Pretty.str " +"]];
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   281
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   282
      fun pretty_field (c, T) = Pretty.block
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   283
        [Pretty.str (ext_const c), Pretty.str " ::", Pretty.brk 1, Pretty.quote (prt_typ T)];
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   284
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   285
      fun pretty_record (name, {args, parent, fields, simpset = _}) = Pretty.block (Pretty.fbreaks
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   286
        (Pretty.block [prt_typ (Type (name, map TFree args)), Pretty.str " = "] ::
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   287
          pretty_parent parent @ map pretty_field fields));
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   288
    in
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   289
      seq (Pretty.writeln o pretty_record) (Symtab.dest tab)
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   290
    end;
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   291
in
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   292
  val record_thy_data = (recordsK, (empty, prep_ext, merge, print));
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   293
end;
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   294
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   295
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   296
(* get and put records *)
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   297
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   298
fun get_records thy =
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   299
  (case Theory.get_data thy recordsK of
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   300
    Records tab => tab
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   301
  | _ => type_error recordsK);
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   302
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   303
fun get_record thy name = Symtab.lookup (get_records thy, name);
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   304
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   305
fun put_records tab thy =
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   306
  Theory.put_data (recordsK, Records tab) thy;
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   307
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   308
fun put_record name info thy =
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   309
  thy |> put_records (Symtab.update ((name, info), get_records thy));
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   310
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   311
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   312
(* parent records *)
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   313
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   314
fun inst_record thy (types, name) =
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   315
  let
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   316
    val sign = Theory.sign_of thy;
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   317
    fun err msg = error (msg ^ " parent record " ^ quote name);
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   318
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   319
    val {args, parent, fields, simpset} =
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   320
      (case get_record thy name of Some info => info | None => err "Unknown");
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   321
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   322
    fun bad_inst ((x, S), T) =
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   323
      if Sign.of_sort sign (T, S) then None else Some x
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   324
    val bads = mapfilter bad_inst (args ~~ types);
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   325
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   326
    val inst = map fst args ~~ types;
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   327
    val subst = Term.map_type_tfree (fn (x, _) => the (assoc (inst, x)));
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   328
  in
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   329
    if length types <> length args then
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   330
      err "Bad number of arguments for"
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   331
    else if not (null bads) then
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   332
      err ("Ill-sorted instantiation of " ^ commas bads ^ " in")
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   333
    else (apsome (apfst (map subst)) parent, map (apsnd subst) fields, simpset)
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   334
  end;
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   335
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   336
fun add_parents thy (None, parents) = parents
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   337
  | add_parents thy (Some (types, name), parents) =
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   338
      let val (pparent, pfields, psimpset) = inst_record thy (types, name)
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   339
      in add_parents thy (pparent, {name = name, fields = pfields, simpset = psimpset} :: parents) end;
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   340
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   341
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   342
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   343
(** internal theory extenders **)
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   344
4894
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   345
(* field_definitions *)
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   346
4894
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   347
(*theorems from Prod.thy*)
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   348
val prod_convs = map Attribute.tthm_of [fst_conv, snd_conv];
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   349
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   350
4894
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   351
fun field_definitions fields names zeta moreT more vars named_vars thy =
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   352
  let
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   353
    val base = Sign.base_name;
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   354
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   355
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   356
    (* prepare declarations and definitions *)
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   357
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   358
    (*field types*)
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   359
    fun mk_fieldT_spec c =
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   360
      (suffix field_typeN c, ["'a", zeta],
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   361
        HOLogic.mk_prodT (TFree ("'a", HOLogic.termS), moreT), Syntax.NoSyn);
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   362
    val fieldT_specs = map (mk_fieldT_spec o base) names;
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   363
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   364
    (*field declarations*)
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   365
    val field_decls = map (mk_fieldC moreT) fields;
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   366
    val dest_decls = map (mk_fstC moreT) fields @ map (mk_sndC moreT) fields;
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   367
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   368
    (*field constructors*)
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   369
    fun mk_field_spec (c, v) =
4894
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   370
      mk_field ((c, v), more) :== HOLogic.mk_prod (v, more);
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   371
    val field_specs = map mk_field_spec named_vars;
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   372
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   373
    (*field destructors*)
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   374
    fun mk_dest_spec dest dest' (c, T) =
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   375
      let
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   376
        val p = Free ("p",  mk_fieldT ((c, T), moreT));
4894
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   377
        val p' = Free ("p",  HOLogic.mk_prodT (T, moreT));
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   378
          (*note: field types are just abbreviations*)
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   379
      in dest p :== dest' p' end;
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   380
    val dest_specs =
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   381
      map (mk_dest_spec mk_fst HOLogic.mk_fst) fields @
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   382
      map (mk_dest_spec mk_snd HOLogic.mk_snd) fields;
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   383
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   384
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   385
    (* prepare theorems *)
4894
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   386
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   387
    fun mk_dest_prop dest dest' (c, v) =
4894
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   388
      dest (mk_field ((c, v), more)) === dest' (v, more);
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   389
    val dest_props =
4894
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   390
      map (mk_dest_prop mk_fst fst) named_vars @ map (mk_dest_prop mk_snd snd) named_vars;
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   391
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   392
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   393
    (* 1st stage: defs_thy *)
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   394
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   395
    val defs_thy =
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   396
      thy
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   397
      |> Theory.add_tyabbrs_i fieldT_specs
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   398
      |> (Theory.add_consts_i o map (Syntax.no_syn o apfst base))
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   399
        (field_decls @ dest_decls)
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   400
      |> (PureThy.add_defs_i o map Attribute.none)
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   401
        (field_specs @ dest_specs);
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   402
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   403
    val field_defs = get_defs defs_thy field_specs;
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   404
    val dest_defs = get_defs defs_thy dest_specs;
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   405
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   406
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   407
    (* 2nd stage: thms_thy *)
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   408
4894
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   409
    val dest_convs =
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   410
      map (prove_simp None (field_defs @ dest_defs @ prod_convs) defs_thy) dest_props;
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   411
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   412
    val thms_thy =
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   413
      defs_thy
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   414
      |> (PureThy.add_tthmss o map Attribute.none)
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   415
        [("field_defs", field_defs),
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   416
          ("dest_defs", dest_defs),
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   417
          ("dest_convs", dest_convs)];
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   418
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   419
  in (thms_thy, dest_convs) end;
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   420
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   421
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   422
(* record_definition *)
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   423
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   424
(*do the actual record definition, assuming that all arguments are
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   425
  well-formed*)
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   426
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   427
fun record_definition (args, bname) parent (parents: parent_info list) bfields thy =
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   428
  let
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   429
    val sign = Theory.sign_of thy;
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   430
    val full = Sign.full_name_path sign bname;
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   431
    val base = Sign.base_name;
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   432
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   433
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   434
    (* basic components *)
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   435
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   436
    val alphas = map fst args;
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   437
    val name = Sign.full_name sign bname;	(*not made part of record name space!*)
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   438
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   439
    val parent_fields = flat (map #fields parents);
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   440
    val parent_names = map fst parent_fields;
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   441
    val parent_types = map snd parent_fields;
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   442
    val parent_len = length parent_fields;
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   443
    val parent_xs = variantlist (map (base o fst) parent_fields, [moreN]);
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   444
    val parent_vars = ListPair.map Free (parent_xs, parent_types);
4894
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   445
    val parent_named_vars = parent_names ~~ parent_vars;
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   446
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   447
    val fields = map (apfst full) bfields;
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   448
    val names = map fst fields;
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   449
    val types = map snd fields;
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   450
    val len = length fields;
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   451
    val xs = variantlist (map fst bfields, moreN :: parent_xs);
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   452
    val vars = ListPair.map Free (xs, types);
4894
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   453
    val named_vars = names ~~ vars;
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   454
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   455
    val all_fields = parent_fields @ fields;
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   456
    val all_names = parent_names @ names;
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   457
    val all_types = parent_types @ types;
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   458
    val all_len = parent_len + len;
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   459
    val all_xs = parent_xs @ xs;
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   460
    val all_vars = parent_vars @ vars;
4894
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   461
    val all_named_vars = parent_named_vars @ named_vars;
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   462
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   463
    val zeta = variant alphas "'z";
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   464
    val moreT = TFree (zeta, moreS);
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   465
    val more = Free (variant xs moreN, moreT);
4894
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   466
    fun more_part t = mk_more t (full moreN);
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   467
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   468
    val parent_more = funpow parent_len mk_snd;
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   469
    val idxs = 0 upto (len - 1);
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   470
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   471
    val rec_schemeT = mk_recordT (all_fields, moreT);
4894
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   472
    val rec_scheme = mk_record (all_named_vars, more);
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   473
    val r = Free ("r", rec_schemeT);
4894
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   474
    val recT = mk_recordT (all_fields, HOLogic.unitT);
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   475
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   476
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   477
    (* prepare print translation functions *)
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   478
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   479
    val field_tr'_names =
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   480
      distinct (flat (map (NameSpace.accesses o suffix fieldN) names)) \\
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   481
        #3 (Syntax.trfun_names (Theory.syn_of thy));
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   482
    val field_trfuns = ([], [], field_tr'_names ~~ map field_tr' field_tr'_names, []);
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   483
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   484
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   485
    (* prepare declarations *)
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   486
4894
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   487
    val sel_decls = map (mk_selC rec_schemeT) bfields @ [mk_moreC rec_schemeT (moreN, moreT)];
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   488
    val update_decls = map (mk_updateC rec_schemeT) bfields;
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   489
    val make_decls =
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   490
      [(mk_makeC rec_schemeT (make_schemeN, all_types @ [moreT])),
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   491
       (mk_makeC recT (makeN, all_types))];
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   492
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   493
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   494
    (* prepare definitions *)
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   495
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   496
    (* record (scheme) type abbreviation *)
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   497
    val recordT_specs =
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   498
      [(suffix schemeN bname, alphas @ [zeta], rec_schemeT, Syntax.NoSyn),
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   499
        (bname, alphas, recT, Syntax.NoSyn)];
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   500
4894
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   501
    (*selectors*)
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   502
    fun mk_sel_spec (i, c) =
4894
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   503
      mk_sel r c :== mk_fst (funpow i mk_snd (parent_more r));
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   504
    val sel_specs =
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   505
      ListPair.map mk_sel_spec (idxs, names) @
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   506
        [more_part r :== funpow len mk_snd (parent_more r)];
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   507
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   508
    (*updates*)
4894
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   509
    val all_sels = all_names ~~ map (mk_sel r) all_names;
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   510
    fun mk_upd_spec (i, (c, x)) =
4894
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   511
      mk_update r (c, x) :==
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   512
        mk_record (nth_update (c, x) (parent_len + i, all_sels), more_part r)
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   513
    val update_specs = ListPair.map mk_upd_spec (idxs, named_vars);
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   514
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   515
    (*makes*)
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   516
    val make_scheme = Const (mk_makeC rec_schemeT (full make_schemeN, all_types @ [moreT]));
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   517
    val make = Const (mk_makeC recT (full makeN, all_types));
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   518
    val make_specs =
4894
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   519
      [list_comb (make_scheme, all_vars) $ more :== rec_scheme,
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   520
        list_comb (make, all_vars) :== mk_record (all_named_vars, HOLogic.unit)];
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   521
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   522
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   523
    (* prepare propositions *)
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   524
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   525
    (*selectors*)
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   526
    val sel_props =
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   527
      map (fn (c, x) => mk_sel rec_scheme c === x) named_vars @
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   528
        [more_part rec_scheme === more];
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   529
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   530
    (*updates*)
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   531
    fun mk_upd_prop (i, (c, T)) =
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   532
      let val x' = Free (variant all_xs (base c ^ "'"), T) in
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   533
        mk_update rec_scheme (c, x') ===
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   534
          mk_record (nth_update (c, x') (parent_len + i, all_named_vars), more)
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   535
      end;
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   536
    val update_props = ListPair.map mk_upd_prop (idxs, fields);
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   537
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   538
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   539
    (* 1st stage: fields_thy *)
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   540
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   541
    val (fields_thy, field_simps) =
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   542
      thy
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   543
      |> Theory.add_path bname
4894
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   544
      |> field_definitions fields names zeta moreT more vars named_vars;
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   545
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   546
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   547
    (* 2nd stage: defs_thy *)
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   548
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   549
    val defs_thy =
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   550
      fields_thy
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   551
      |> Theory.parent_path
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   552
      |> Theory.add_tyabbrs_i recordT_specs	(*not made part of record name space!*)
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   553
      |> Theory.add_path bname
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   554
      |> Theory.add_trfuns field_trfuns
4894
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   555
      |> (Theory.add_consts_i o map Syntax.no_syn)
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   556
        (sel_decls @ update_decls @ make_decls)
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   557
      |> (PureThy.add_defs_i o map Attribute.none)
4894
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   558
        (sel_specs @ update_specs @ make_specs);
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   559
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   560
    val sel_defs = get_defs defs_thy sel_specs;
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   561
    val update_defs = get_defs defs_thy update_specs;
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   562
    val make_defs = get_defs defs_thy make_specs;
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   563
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   564
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   565
    (* 3rd stage: thms_thy *)
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   566
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   567
    val parent_simpset =
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   568
      (case parent of
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   569
        None => HOL_basic_ss
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   570
      | Some (_, pname) => #simpset (the (get_record thy pname)));
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   571
4894
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   572
    val pss = Some parent_simpset;
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   573
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   574
    val sel_convs = map (prove_simp pss (sel_defs @ field_simps) defs_thy) sel_props;
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   575
    val update_convs = map (prove_simp pss (update_defs @ sel_convs) defs_thy) update_props;
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   576
    val simps = field_simps @ sel_convs @ update_convs @ make_defs;
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   577
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   578
    val thms_thy =
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   579
      defs_thy
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   580
      |> (PureThy.add_tthmss o map Attribute.none)
4894
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   581
        [("selector_defs", sel_defs),
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   582
          ("update_defs", update_defs),
4894
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   583
          ("make_defs", make_defs),
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   584
          ("selector_convs", sel_convs),
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   585
          ("update_convs", update_convs)]
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   586
      |> PureThy.add_tthmss [(("simps", simps), [Simplifier.simp_add_global])];
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   587
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   588
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   589
    (* 4th stage: final_thy *)
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   590
4894
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   591
    val simpset = add_simps parent_simpset simps;
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   592
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   593
    val final_thy =
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   594
      thms_thy
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   595
      |> put_record name {args = args, parent = parent, fields = fields, simpset = simpset}
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   596
      |> Theory.parent_path;
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   597
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   598
  in final_thy end;
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   599
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   600
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   601
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   602
(** theory extender interface **)
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   603
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   604
(* prepare arguments *)
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   605
4894
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   606
(*note: read_raw_typ avoids expanding type abbreviations*)
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   607
fun read_raw_parent sign s =
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   608
  (case Sign.read_raw_typ (sign, K None) s handle TYPE (msg, _, _) => error msg of
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   609
    Type (name, Ts) => (Ts, name)
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   610
  | _ => error ("Bad parent record specification: " ^ quote s));
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   611
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   612
fun read_typ sign (env, s) =
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   613
  let
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   614
    fun def_type (x, ~1) = assoc (env, x)
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   615
      | def_type _ = None;
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   616
    val T = Type.no_tvars (Sign.read_typ (sign, def_type) s) handle TYPE (msg, _, _) => error msg;
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   617
  in (Term.add_typ_tfrees (T, env), T) end;
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   618
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   619
fun cert_typ sign (env, raw_T) =
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   620
  let val T = Type.no_tvars (Sign.certify_typ sign raw_T) handle TYPE (msg, _, _) => error msg
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   621
  in (Term.add_typ_tfrees (T, env), T) end;
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   622
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   623
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   624
(* add_record *)
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   625
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   626
(*do all preparations and error checks here, deferring the real work
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   627
  to record_definition above*)
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   628
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   629
fun gen_add_record prep_typ prep_raw_parent (params, bname) raw_parent raw_fields thy =
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   630
  let
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   631
    val _ = Theory.require thy "Record" "record definitions";
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   632
    val sign = Theory.sign_of thy;
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   633
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   634
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   635
    (* parents *)
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   636
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   637
    fun prep_inst T = snd (cert_typ sign ([], T));
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   638
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   639
    val parent = apsome (apfst (map prep_inst) o prep_raw_parent sign) raw_parent
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   640
      handle ERROR => error ("The error(s) above in parent record specification");
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   641
    val parents = add_parents thy (parent, []);
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   642
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   643
    val init_env =
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   644
      (case parent of
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   645
        None => []
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   646
      | Some (types, _) => foldr Term.add_typ_tfrees (types, []));
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   647
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   648
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   649
    (* fields *)
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   650
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   651
    fun prep_fields (env, []) = (env, [])
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   652
      | prep_fields (env, (c, raw_T) :: fs) =
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   653
          let
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   654
            val (env', T) = prep_typ sign (env, raw_T) handle ERROR =>
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   655
              error ("The error(s) above occured in field " ^ quote c);
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   656
            val (env'', fs') = prep_fields (env', fs);
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   657
      in (env'', (c, T) :: fs') end;
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   658
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   659
    val (envir, bfields) = prep_fields (init_env, raw_fields);
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   660
    val envir_names = map fst envir;
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   661
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   662
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   663
    (* args *)
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   664
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   665
    val defaultS = Sign.defaultS sign;
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   666
    val args = map (fn x => (x, if_none (assoc (envir, x)) defaultS)) params;
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   667
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   668
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   669
    (* errors *)
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   670
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   671
    val name = Sign.full_name sign bname;
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   672
    val err_dup_record =
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   673
      if is_none (get_record thy name) then []
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   674
      else ["Duplicate definition of record " ^ quote name];
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   675
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   676
    val err_dup_parms =
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   677
      (case duplicates params of
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   678
        [] => []
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   679
      | dups => ["Duplicate parameter(s) " ^ commas dups]);
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   680
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   681
    val err_extra_frees =
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   682
      (case gen_rems (op =) (envir_names, params) of
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   683
        [] => []
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   684
      | extras => ["Extra free type variable(s) " ^ commas extras]);
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   685
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   686
    val err_no_fields = if null bfields then ["No fields present"] else [];
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   687
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   688
    val err_dup_fields =
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   689
      (case duplicates (map fst bfields) of
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   690
        [] => []
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   691
      | dups => ["Duplicate field(s) " ^ commas_quote dups]);
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   692
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   693
    val err_bad_fields =
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   694
      if forall (not_equal moreN o fst) bfields then []
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   695
      else ["Illegal field name " ^ quote moreN];
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   696
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   697
    val err_dup_sorts =
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   698
      (case duplicates envir_names of
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   699
        [] => []
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   700
      | dups => ["Inconsistent sort constraints for " ^ commas dups]);
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   701
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   702
    val errs =
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   703
      err_dup_record @ err_dup_parms @ err_extra_frees @ err_no_fields @
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   704
      err_dup_fields @ err_bad_fields @ err_dup_sorts;
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   705
  in
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   706
    writeln ("Defining record " ^ quote bname ^ " ...");
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   707
    if null errs then () else error (cat_lines errs);
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   708
    thy |> record_definition (args, bname) parent parents bfields
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   709
  end
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   710
  handle ERROR => error ("Failed to define record " ^ quote bname);
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   711
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   712
val add_record = gen_add_record read_typ read_raw_parent;
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   713
val add_record_i = gen_add_record cert_typ (K I);
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   714
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   715
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   716
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   717
(** setup theory **)
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   718
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   719
val setup =
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   720
 [Theory.init_data [record_thy_data],
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   721
  Theory.add_trfuns
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   722
    ([], [("_record", record_tr), ("_record_scheme", record_scheme_tr)], [], [])];
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   723
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   724
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   725
end;