src/HOL/Tools/record_package.ML
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field types: datatype; record_split_tac; quiet_mode; renamed fst/snd to val/more; structure BasicRecordPackage;
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(*  Title:      HOL/Tools/record_package.ML
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    ID:         $Id$
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    Author:     Wolfgang Naraschewski and Markus Wenzel, TU Muenchen
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Extensible records with structural subtyping in HOL.
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*)
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signature BASIC_RECORD_PACKAGE =
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sig
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  val record_split_tac: int -> tactic
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  val record_split_wrapper: string * wrapper
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end;
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signature RECORD_PACKAGE =
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sig
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  include BASIC_RECORD_PACKAGE
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  val quiet_mode: bool ref
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  val moreS: sort
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  val mk_fieldT: (string * typ) * typ -> typ
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  val dest_fieldT: typ -> (string * typ) * typ
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  val mk_field: (string * term) * term -> term
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  val mk_fst: term -> term
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  val mk_snd: term -> term
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  val mk_recordT: (string * typ) list * typ -> typ
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  val dest_recordT: typ -> (string * typ) list * typ
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  val mk_record: (string * term) list * term -> term
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  val mk_sel: term -> string -> term
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  val mk_update: term -> string * term -> term
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  val print_records: theory -> unit
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  val add_record: (string list * bstring) -> string option
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    -> (bstring * string) list -> theory -> theory
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  val add_record_i: (string list * bstring) -> (typ list * string) option
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    -> (bstring * typ) list -> theory -> theory
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  val setup: (theory -> theory) list
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end;
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structure RecordPackage: RECORD_PACKAGE =
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struct
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(*** utilities ***)
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(* messages *)
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val quiet_mode = ref false;
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fun message s = if ! quiet_mode then () else writeln s;
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(* definitions and equations *)
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infix 0 :== ===;
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val (op :==) = Logic.mk_defpair;
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val (op ===) = HOLogic.mk_Trueprop o HOLogic.mk_eq;
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fun get_defs thy specs = map (PureThy.get_tthm thy o fst) specs;
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(* proof by simplification *)
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fun prove_simp thy tacs simps =
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  let
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    val sign = Theory.sign_of thy;
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    val ss = Simplifier.addsimps (HOL_basic_ss, map Attribute.thm_of simps);
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    fun prove goal =
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      Attribute.tthm_of
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        (Goals.prove_goalw_cterm [] (Thm.cterm_of sign goal)
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          (K (tacs @ [ALLGOALS (Simplifier.simp_tac ss)]))
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        handle ERROR => error ("The error(s) above occurred while trying to prove "
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          ^ quote (Sign.string_of_term sign goal)));
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  in prove end;
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(*** syntax operations ***)
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(** name components **)
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val moreN = "more";
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val schemeN = "_scheme";
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val fieldN = "_field";
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val raw_fieldN = "_raw_field";
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val field_typeN = "_field_type";
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val fstN = "_val";
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val sndN = "_more";
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val updateN = "_update";
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val makeN = "make";
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val make_schemeN = "make_scheme";
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(*see datatype package*)
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val caseN = "_case";
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(** generic operations **)
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fun fst_fn T U = Abs ("x", T, Abs ("y", U, Bound 1));
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fun snd_fn T U = Abs ("x", T, Abs ("y", U, Bound 0));
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fun mk_prod_case name f p =
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  let
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    val fT as Type ("fun", [A, Type ("fun", [B, C])]) = fastype_of f;
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    val pT = fastype_of p;
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  in Const (suffix caseN name, fT --> pT --> C) $ f $ p end;
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(** tuple operations **)
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(* more type class *)
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val moreS = ["Record.more"];
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(* types *)
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fun mk_fieldT ((c, T), U) = Type (suffix field_typeN c, [T, U]);
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fun dest_fieldT (typ as Type (c_field_type, [T, U])) =
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      (case try (unsuffix field_typeN) c_field_type of
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        None => raise TYPE ("dest_fieldT", [typ], [])
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      | Some c => ((c, T), U))
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  | dest_fieldT typ = raise TYPE ("dest_fieldT", [typ], []);
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(* constructors *)
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fun mk_fieldC U (c, T) = (suffix fieldN c, T --> U --> mk_fieldT ((c, T), U));
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fun gen_mk_field sfx ((c, t), u) =
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  let val T = fastype_of t and U = fastype_of u
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  in Const (suffix sfx c, [T, U] ---> mk_fieldT ((c, T), U)) $ t $ u end;
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val mk_field = gen_mk_field fieldN;
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val mk_raw_field = gen_mk_field raw_fieldN;
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(* destructors *)
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fun mk_fstC U (c, T) = (suffix fstN c, mk_fieldT ((c, T), U) --> T);
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fun mk_sndC U (c, T) = (suffix sndN c, mk_fieldT ((c, T), U) --> U);
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fun dest_field fst_or_snd p =
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  let
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    val pT = fastype_of p;
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    val ((c, T), U) = dest_fieldT pT;
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    val (destN, destT) = if fst_or_snd then (fstN, T) else (sndN, U);
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  in Const (suffix destN c, pT --> destT) $ p end;
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val mk_fst = dest_field true;
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val mk_snd = dest_field false;
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(** record operations **)
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(* types *)
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val mk_recordT = foldr mk_fieldT;
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fun dest_recordT T =
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  (case try dest_fieldT T of
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    None => ([], T)
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  | Some (c_T, U) => apfst (cons c_T) (dest_recordT U));
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fun find_fieldT c rT =
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  (case assoc (fst (dest_recordT rT), c) of
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    None => raise TYPE ("find_field: " ^ c, [rT], [])
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  | Some T => T);
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(* constructors *)
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val mk_record = foldr mk_field;
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(* selectors *)
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fun mk_selC rT (c, T) = (c, rT --> T);
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fun mk_sel r c =
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  let val rT = fastype_of r
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  in Const (mk_selC rT (c, find_fieldT c rT)) $ r end;
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val mk_moreC = mk_selC;
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fun mk_more r c =
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  let val rT = fastype_of r
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  in Const (mk_moreC rT (c, snd (dest_recordT rT))) $ r end;
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(* updates *)
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fun mk_updateC rT (c, T) = (suffix updateN c, T --> rT --> rT);
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fun mk_update r (c, x) =
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  let val rT = fastype_of r
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  in Const (mk_updateC rT (c, find_fieldT c rT)) $ x $ r end;
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val mk_more_updateC = mk_updateC;
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fun mk_more_update r (c, x) =
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  let val rT = fastype_of r
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  in Const (mk_more_updateC rT (c, snd (dest_recordT rT))) $ x $ r end;
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(* make *)
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fun mk_makeC rT (c, Ts) = (c, Ts ---> rT);
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(** concrete syntax for records **)
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(* parse translations *)
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fun gen_field_tr mark sfx (t as Const (c, _) $ Free (name, _) $ arg) =
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      if c = mark then Syntax.const (suffix sfx name) $ arg
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      else raise TERM ("gen_field_tr: " ^ mark, [t])
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  | gen_field_tr mark _ t = raise TERM ("gen_field_tr: " ^ mark, [t]);
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fun gen_fields_tr sep mark sfx (tm as Const (c, _) $ t $ u) =
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      if c = sep then gen_field_tr mark sfx t :: gen_fields_tr sep mark sfx u
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      else [gen_field_tr mark sfx tm]
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  | gen_fields_tr _ mark sfx tm = [gen_field_tr mark sfx tm];
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fun gen_record_tr sep mark sfx unit [t] = foldr (op $) (gen_fields_tr sep mark sfx t, unit)
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  | gen_record_tr _ _ _ _ ts = raise TERM ("gen_record_tr", ts);
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fun gen_record_scheme_tr sep mark sfx [t, more] = foldr (op $) (gen_fields_tr sep mark sfx t, more)
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  | gen_record_scheme_tr _ _ _ ts = raise TERM ("gen_record_scheme_tr", ts);
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val record_type_tr = gen_record_tr "_field_types" "_field_type" field_typeN (Syntax.const "unit");
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val record_type_scheme_tr = gen_record_scheme_tr "_field_types" "_field_type" field_typeN;
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val record_tr = gen_record_tr "_fields" "_field" fieldN HOLogic.unit;
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val record_scheme_tr = gen_record_scheme_tr "_fields" "_field" fieldN;
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fun record_update_tr [t, u] =
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      foldr (op $) (rev (gen_fields_tr "_updates" "_update" updateN u), t)
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  | record_update_tr ts = raise TERM ("record_update_tr", ts);
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val parse_translation =
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 [("_record_type", record_type_tr),
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  ("_record_type_scheme", record_type_scheme_tr),
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  ("_record", record_tr),
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  ("_record_scheme", record_scheme_tr),
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  ("_record_update", record_update_tr)];
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(* print translations *)
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fun gen_fields_tr' mark sfx (tm as Const (name_field, _) $ t $ u) =
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      (case try (unsuffix sfx) name_field of
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        Some name =>
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          apfst (cons (Syntax.const mark $ Syntax.free name $ t)) (gen_fields_tr' mark sfx u)
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      | None => ([], tm))
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  | gen_fields_tr' _ _ tm = ([], tm);
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fun gen_record_tr' sep mark sfx is_unit record record_scheme tm =
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  let
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    val (ts, u) = gen_fields_tr' mark sfx tm;
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    val t' = foldr1 (fn (v, w) => Syntax.const sep $ v $ w) ts;
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  in
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    if is_unit u then Syntax.const record $ t'
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    else Syntax.const record_scheme $ t' $ u
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  end;
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val record_type_tr' =
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  gen_record_tr' "_field_types" "_field_type" field_typeN
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    (fn Const ("unit", _) => true | _ => false) "_record_type" "_record_type_scheme";
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val record_tr' =
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  gen_record_tr' "_fields" "_field" fieldN HOLogic.is_unit "_record" "_record_scheme";
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fun record_update_tr' tm =
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  let val (ts, u) = gen_fields_tr' "_update" updateN tm in
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    Syntax.const "_record_update" $ u $
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      foldr1 (fn (v, w) => Syntax.const "_updates" $ v $ w) (rev ts)
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  end;
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fun gen_field_tr' sfx tr' name =
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  let val name_sfx = suffix sfx name
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  in (name_sfx, fn [t, u] => tr' (Syntax.const name_sfx $ t $ u) | _ => raise Match) end;
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fun print_translation names =
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  map (gen_field_tr' field_typeN record_type_tr') names @
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  map (gen_field_tr' fieldN record_tr') names @
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  map (gen_field_tr' updateN record_update_tr') names;
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(*** extend theory by record definition ***)
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(** record info **)
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(* type record_info and parent_info *)
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type record_info =
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 {args: (string * sort) list,
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  parent: (typ list * string) option,
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  fields: (string * typ) list,
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  simps: tthm list};
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type parent_info =
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 {name: string,
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  fields: (string * typ) list,
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  simps: tthm list};
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(* data kind 'HOL/records' *)
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structure RecordsArgs =
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struct
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  val name = "HOL/records";
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  type T =
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    record_info Symtab.table *				(*records*)
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      (thm Symtab.table * Simplifier.simpset);		(*field split rules*)
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  val empty = (Symtab.empty, (Symtab.empty, HOL_basic_ss));
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  val prep_ext = I;
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  fun merge ((recs1, (sps1, ss1)), (recs2, (sps2, ss2))) =
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    (Symtab.merge (K true) (recs1, recs2),
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      (Symtab.merge (K true) (sps1, sps2), Simplifier.merge_ss (ss1, ss2)));
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  fun print sg (recs, _) =
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    let
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      val prt_typ = Sign.pretty_typ sg;
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      val ext_const = Sign.cond_extern sg Sign.constK;
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      fun pretty_parent None = []
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        | pretty_parent (Some (Ts, name)) =
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            [Pretty.block [prt_typ (Type (name, Ts)), Pretty.str " +"]];
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      fun pretty_field (c, T) = Pretty.block
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        [Pretty.str (ext_const c), Pretty.str " ::", Pretty.brk 1, Pretty.quote (prt_typ T)];
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      fun pretty_record (name, {args, parent, fields, simps = _}) = Pretty.block (Pretty.fbreaks
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        (Pretty.block [prt_typ (Type (name, map TFree args)), Pretty.str " = "] ::
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          pretty_parent parent @ map pretty_field fields));
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    in
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      seq (Pretty.writeln o pretty_record) (Symtab.dest recs)
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    end;
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end;
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5006
cdc86a914e63 adapted to new theory data interface;
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structure RecordsData = TheoryDataFun(RecordsArgs);
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val print_records = RecordsData.print;
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(* get and put data *)
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fun get_record thy name = Symtab.lookup (#1 (RecordsData.get thy), name);
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   359
fun put_record name info thy =
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   360
  let val (tab, sp) = RecordsData.get thy
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   361
  in RecordsData.put (Symtab.update ((name, info), tab), sp) thy end;
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   362
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   363
fun add_record_splits splits thy =
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   364
  let
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   365
    val (tab, (sps, ss)) = RecordsData.get thy;
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   366
    val simps = map #2 splits;
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  in RecordsData.put (tab, (Symtab.extend (sps, splits), Simplifier.addsimps (ss, simps))) thy end;
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   369
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   370
(* parent records *)
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   371
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   372
fun inst_record thy (types, name) =
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   373
  let
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   374
    val sign = Theory.sign_of thy;
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   375
    fun err msg = error (msg ^ " parent record " ^ quote name);
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   376
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   377
    val {args, parent, fields, simps} =
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   378
      (case get_record thy name of Some info => info | None => err "Unknown");
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   379
    val _ = if length types <> length args then err "Bad number of arguments for" else ();
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   380
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
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   381
    fun bad_inst ((x, S), T) =
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   382
      if Sign.of_sort sign (T, S) then None else Some x
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parents:
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   383
    val bads = mapfilter bad_inst (args ~~ types);
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parents:
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   384
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
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parents:
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   385
    val inst = map fst args ~~ types;
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parents:
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   386
    val subst = Term.map_type_tfree (fn (x, _) => the (assoc (inst, x)));
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   387
  in
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   388
    if not (null bads) then
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   389
      err ("Ill-sorted instantiation of " ^ commas bads ^ " in")
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diff changeset
   390
    else (apsome (apfst (map subst)) parent, map (apsnd subst) fields, simps)
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   391
  end;
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parents:
diff changeset
   392
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
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parents:
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   393
fun add_parents thy (None, parents) = parents
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
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   394
  | add_parents thy (Some (types, name), parents) =
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   395
      let val (pparent, pfields, psimps) = inst_record thy (types, name)
0fad2acb45fb misc tuning;
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parents: 4894
diff changeset
   396
      in add_parents thy (pparent, {name = name, fields = pfields, simps = psimps} :: parents) end;
4867
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parents:
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   397
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
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parents:
diff changeset
   398
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
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parents:
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   399
5698
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   400
(** record field splitting **)
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diff changeset
   401
2b5d9bdec5af field types: datatype;
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diff changeset
   402
fun record_split_tac i st =
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parents: 5290
diff changeset
   403
  let
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   404
    val (_, (sps, ss)) = RecordsData.get_sg (Thm.sign_of_thm st);
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   405
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   406
    fun is_fieldT (_, Type (a, [_, _])) = is_some (Symtab.lookup (sps, a))
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   407
      | is_fieldT _ = false;
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   408
    val params = Logic.strip_params (Library.nth_elem (i - 1, Thm.prems_of st));
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   409
  in
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   410
    if exists is_fieldT params then Simplifier.full_simp_tac ss i st
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   411
    else Seq.empty
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   412
  end handle Library.LIST _ => Seq.empty;
2b5d9bdec5af field types: datatype;
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parents: 5290
diff changeset
   413
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
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   414
val record_split_wrapper = ("record_split_tac", fn tac => record_split_tac ORELSE' tac);
2b5d9bdec5af field types: datatype;
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parents: 5290
diff changeset
   415
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   416
2b5d9bdec5af field types: datatype;
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parents: 5290
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   417
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   418
(** internal theory extenders **)
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   419
5698
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   420
(* field_type_defs *)
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parents: 5290
diff changeset
   421
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
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   422
fun field_type_def ((thy, simps), (name, tname, vs, T, U)) =
2b5d9bdec5af field types: datatype;
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   423
  let
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parents: 5290
diff changeset
   424
    val full = Sign.full_name (sign_of thy);
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   425
    val (thy', {simps = simps', ...}) =
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   426
      thy
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   427
      |> setmp DatatypePackage.quiet_mode true
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   428
        (DatatypePackage.add_datatype_i true [tname]
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   429
          [(vs, tname, Syntax.NoSyn, [(name, [T, U], Syntax.NoSyn)])]);
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   430
    val thy'' =
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   431
      thy'
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   432
      |> setmp AxClass.quiet_mode true
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   433
        (AxClass.add_inst_arity_i (full tname, [HOLogic.termS, moreS], moreS) [] [] None);
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   434
  in (thy'', simps' @ simps) end;
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   435
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   436
fun field_type_defs args thy = foldl field_type_def ((thy, []), args);
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   437
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   438
4894
32187e0b8b48 'more' selector;
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parents: 4890
diff changeset
   439
(* field_definitions *)
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
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parents:
diff changeset
   440
4894
32187e0b8b48 'more' selector;
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parents: 4890
diff changeset
   441
fun field_definitions fields names zeta moreT more vars named_vars thy =
4890
f0a24bad990a concrete syntax for record terms;
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parents: 4867
diff changeset
   442
  let
5698
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   443
    val sign = Theory.sign_of thy;
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   444
    val base = Sign.base_name;
5698
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   445
    val full_path = Sign.full_name_path sign;
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   446
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   447
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   448
    (* prepare declarations and definitions *)
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   449
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   450
    (*field types*)
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   451
    fun mk_fieldT_spec c =
5698
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   452
      (suffix raw_fieldN c, suffix field_typeN c,
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   453
        ["'a", zeta], TFree ("'a", HOLogic.termS), moreT);
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   454
    val fieldT_specs = map (mk_fieldT_spec o base) names;
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   455
5698
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   456
    (*field constructors*)
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   457
    val field_decls = map (mk_fieldC moreT) fields;
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   458
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   459
    fun mk_field_spec (c, v) =
5698
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   460
      mk_field ((c, v), more) :== mk_raw_field ((c, v), more);
4894
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   461
    val field_specs = map mk_field_spec named_vars;
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   462
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   463
    (*field destructors*)
5698
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   464
    val dest_decls = map (mk_fstC moreT) fields @ map (mk_sndC moreT) fields;
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   465
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   466
    fun mk_dest_spec dest f (c, T) =
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   467
      let val p = Free ("p", mk_fieldT ((c, T), moreT));
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   468
      in dest p :== mk_prod_case (suffix field_typeN c) (f T moreT) p end;
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   469
    val dest_specs =
5698
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   470
      map (mk_dest_spec mk_fst fst_fn) fields @
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   471
      map (mk_dest_spec mk_snd snd_fn) fields;
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   472
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   473
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   474
    (* prepare theorems *)
4894
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   475
5698
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   476
    (*destructor conversions*)
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   477
    fun mk_dest_prop dest dest' (c, v) =
4894
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   478
      dest (mk_field ((c, v), more)) === dest' (v, more);
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   479
    val dest_props =
4895
0fad2acb45fb misc tuning;
wenzelm
parents: 4894
diff changeset
   480
      map (mk_dest_prop mk_fst fst) named_vars @
0fad2acb45fb misc tuning;
wenzelm
parents: 4894
diff changeset
   481
      map (mk_dest_prop mk_snd snd) named_vars;
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   482
5698
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   483
    (*surjective pairing*)
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   484
    fun mk_surj_prop (c, T) =
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   485
      let val p = Free ("p", mk_fieldT ((c, T), moreT));
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   486
      in p === mk_field ((c, mk_fst p), mk_snd p) end;
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   487
    val surj_props = map mk_surj_prop fields;
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   488
5698
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   489
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   490
    (* 1st stage: types_thy *)
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   491
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   492
    val (types_thy, simps) =
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   493
      thy
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   494
      |> field_type_defs fieldT_specs;
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   495
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   496
    val datatype_simps = map Attribute.tthm_of simps;
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   497
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   498
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   499
    (* 2nd stage: defs_thy *)
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   500
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   501
    val defs_thy =
5698
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   502
      types_thy
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   503
       |> (Theory.add_consts_i o map (Syntax.no_syn o apfst base))
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   504
         (field_decls @ dest_decls)
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   505
       |> (PureThy.add_defs_i o map (fn x => (x, [Attribute.tag_internal])))
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   506
         (field_specs @ dest_specs);
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
    val field_defs = get_defs defs_thy field_specs;
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   509
    val dest_defs = get_defs defs_thy dest_specs;
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   510
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   511
5698
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   512
    (* 3rd stage: thms_thy *)
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   513
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   514
    val prove = prove_simp defs_thy;
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   515
5698
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   516
    val dest_convs = map (prove [] (field_defs @ dest_defs @ datatype_simps)) dest_props;
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   517
    val surj_pairs = map (prove [DatatypePackage.induct_tac "p" 1]
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   518
      (map (apfst Thm.symmetric) field_defs @ dest_convs)) surj_props;
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   519
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   520
    fun mk_split th = SplitPairedAll.rule (standard (th RS eq_reflection));
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   521
    val splits = map (fn (th, _) => Attribute.tthm_of (mk_split th)) surj_pairs;
4894
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   522
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   523
    val thms_thy =
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   524
      defs_thy
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   525
      |> (PureThy.add_tthmss o map Attribute.none)
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   526
        [("field_defs", field_defs),
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   527
          ("dest_defs", dest_defs),
5698
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   528
          ("dest_convs", dest_convs),
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   529
          ("surj_pairs", surj_pairs),
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   530
          ("splits", splits)];
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   531
5698
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   532
  in (thms_thy, dest_convs, splits) end;
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   533
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   534
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   535
(* record_definition *)
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   536
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   537
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
   538
  let
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   539
    val sign = Theory.sign_of thy;
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   540
    val full = Sign.full_name_path sign bname;
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   541
    val base = Sign.base_name;
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   542
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   543
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   544
    (* basic components *)
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
    val alphas = map fst args;
5197
69c77ed95ba3 added more_update;
wenzelm
parents: 5060
diff changeset
   547
    val name = Sign.full_name sign bname;       (*not made part of record name space!*)
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   548
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   549
    val parent_fields = flat (map #fields parents);
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   550
    val parent_names = map fst parent_fields;
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   551
    val parent_types = map snd parent_fields;
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   552
    val parent_len = length parent_fields;
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   553
    val parent_xs = variantlist (map (base o fst) parent_fields, [moreN]);
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   554
    val parent_vars = ListPair.map Free (parent_xs, parent_types);
4894
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   555
    val parent_named_vars = parent_names ~~ parent_vars;
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   556
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   557
    val fields = map (apfst full) bfields;
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   558
    val names = map fst fields;
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   559
    val types = map snd fields;
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   560
    val len = length fields;
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   561
    val xs = variantlist (map fst bfields, moreN :: parent_xs);
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   562
    val vars = ListPair.map Free (xs, types);
4894
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   563
    val named_vars = names ~~ vars;
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   564
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   565
    val all_fields = parent_fields @ fields;
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   566
    val all_names = parent_names @ names;
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   567
    val all_types = parent_types @ types;
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   568
    val all_len = parent_len + len;
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   569
    val all_xs = parent_xs @ xs;
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   570
    val all_vars = parent_vars @ vars;
4894
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   571
    val all_named_vars = parent_named_vars @ named_vars;
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   572
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   573
    val zeta = variant alphas "'z";
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   574
    val moreT = TFree (zeta, moreS);
4895
0fad2acb45fb misc tuning;
wenzelm
parents: 4894
diff changeset
   575
    val more = Free (moreN, moreT);
5197
69c77ed95ba3 added more_update;
wenzelm
parents: 5060
diff changeset
   576
    val full_moreN = full moreN;
69c77ed95ba3 added more_update;
wenzelm
parents: 5060
diff changeset
   577
    fun more_part t = mk_more t full_moreN;
69c77ed95ba3 added more_update;
wenzelm
parents: 5060
diff changeset
   578
    fun more_part_update t x = mk_more_update t (full_moreN, x);
4894
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   579
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   580
    val parent_more = funpow parent_len mk_snd;
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   581
    val idxs = 0 upto (len - 1);
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   582
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   583
    val rec_schemeT = mk_recordT (all_fields, moreT);
4894
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   584
    val rec_scheme = mk_record (all_named_vars, more);
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   585
    val r = Free ("r", rec_schemeT);
4894
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   586
    val recT = mk_recordT (all_fields, HOLogic.unitT);
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
    (* prepare print translation functions *)
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   590
5698
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   591
    val field_tr's =
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   592
      print_translation (distinct (flat (map NameSpace.accesses (full_moreN :: names))));
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   593
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   594
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   595
    (* prepare declarations *)
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   596
5197
69c77ed95ba3 added more_update;
wenzelm
parents: 5060
diff changeset
   597
    val sel_decls = map (mk_selC rec_schemeT) bfields @
69c77ed95ba3 added more_update;
wenzelm
parents: 5060
diff changeset
   598
      [mk_moreC rec_schemeT (moreN, moreT)];
69c77ed95ba3 added more_update;
wenzelm
parents: 5060
diff changeset
   599
    val update_decls = map (mk_updateC rec_schemeT) bfields @
69c77ed95ba3 added more_update;
wenzelm
parents: 5060
diff changeset
   600
      [mk_more_updateC rec_schemeT (moreN, moreT)];
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   601
    val make_decls =
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   602
      [(mk_makeC rec_schemeT (make_schemeN, all_types @ [moreT])),
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   603
       (mk_makeC recT (makeN, all_types))];
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   604
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   605
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   606
    (* prepare definitions *)
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   607
4895
0fad2acb45fb misc tuning;
wenzelm
parents: 4894
diff changeset
   608
    (*record (scheme) type abbreviation*)
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   609
    val recordT_specs =
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   610
      [(suffix schemeN bname, alphas @ [zeta], rec_schemeT, Syntax.NoSyn),
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   611
        (bname, alphas, recT, Syntax.NoSyn)];
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   612
4894
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   613
    (*selectors*)
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   614
    fun mk_sel_spec (i, c) =
4894
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   615
      mk_sel r c :== mk_fst (funpow i mk_snd (parent_more r));
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   616
    val sel_specs =
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   617
      ListPair.map mk_sel_spec (idxs, names) @
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   618
        [more_part r :== funpow len mk_snd (parent_more r)];
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   619
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   620
    (*updates*)
4894
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   621
    val all_sels = all_names ~~ map (mk_sel r) all_names;
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   622
    fun mk_upd_spec (i, (c, x)) =
4894
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   623
      mk_update r (c, x) :==
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   624
        mk_record (nth_update (c, x) (parent_len + i, all_sels), more_part r)
5197
69c77ed95ba3 added more_update;
wenzelm
parents: 5060
diff changeset
   625
    val update_specs =
69c77ed95ba3 added more_update;
wenzelm
parents: 5060
diff changeset
   626
      ListPair.map mk_upd_spec (idxs, named_vars) @
69c77ed95ba3 added more_update;
wenzelm
parents: 5060
diff changeset
   627
        [more_part_update r more :== mk_record (all_sels, more)];
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   628
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   629
    (*makes*)
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   630
    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
   631
    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
   632
    val make_specs =
4894
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   633
      [list_comb (make_scheme, all_vars) $ more :== rec_scheme,
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   634
        list_comb (make, all_vars) :== mk_record (all_named_vars, HOLogic.unit)];
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   635
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   636
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   637
    (* prepare propositions *)
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   638
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   639
    (*selectors*)
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   640
    val sel_props =
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   641
      map (fn (c, x) => mk_sel rec_scheme c === x) named_vars @
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   642
        [more_part rec_scheme === more];
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   643
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   644
    (*updates*)
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   645
    fun mk_upd_prop (i, (c, T)) =
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   646
      let val x' = Free (variant all_xs (base c ^ "'"), T) in
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   647
        mk_update rec_scheme (c, x') ===
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   648
          mk_record (nth_update (c, x') (parent_len + i, all_named_vars), more)
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   649
      end;
5197
69c77ed95ba3 added more_update;
wenzelm
parents: 5060
diff changeset
   650
    val update_props =
69c77ed95ba3 added more_update;
wenzelm
parents: 5060
diff changeset
   651
      ListPair.map mk_upd_prop (idxs, fields) @
69c77ed95ba3 added more_update;
wenzelm
parents: 5060
diff changeset
   652
        let val more' = Free (variant all_xs (moreN ^ "'"), moreT)
69c77ed95ba3 added more_update;
wenzelm
parents: 5060
diff changeset
   653
        in [more_part_update rec_scheme more' === mk_record (all_named_vars, more')] end;
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   654
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   655
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   656
    (* 1st stage: fields_thy *)
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   657
5698
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   658
    val (fields_thy, field_simps, splits) =
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   659
      thy
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   660
      |> Theory.add_path bname
4894
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   661
      |> 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
   662
5698
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   663
    val field_splits = map2 (fn (c, (th, _)) => (suffix field_typeN c, th)) (names, splits);
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   664
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   665
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   666
    (* 2nd stage: defs_thy *)
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   667
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   668
    val defs_thy =
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   669
      fields_thy
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   670
      |> Theory.parent_path
5197
69c77ed95ba3 added more_update;
wenzelm
parents: 5060
diff changeset
   671
      |> Theory.add_tyabbrs_i recordT_specs     (*not made part of record name space!*)
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   672
      |> Theory.add_path bname
5197
69c77ed95ba3 added more_update;
wenzelm
parents: 5060
diff changeset
   673
      |> Theory.add_trfuns ([], [], field_tr's, [])
4894
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   674
      |> (Theory.add_consts_i o map Syntax.no_syn)
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   675
        (sel_decls @ update_decls @ make_decls)
5197
69c77ed95ba3 added more_update;
wenzelm
parents: 5060
diff changeset
   676
      |> (PureThy.add_defs_i o map (fn x => (x, [Attribute.tag_internal])))
5212
2bc5b5cf0516 make_defs not marked as internal;
wenzelm
parents: 5210
diff changeset
   677
        (sel_specs @ update_specs)
2bc5b5cf0516 make_defs not marked as internal;
wenzelm
parents: 5210
diff changeset
   678
      |> (PureThy.add_defs_i o map Attribute.none) make_specs;
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   679
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   680
    val sel_defs = get_defs defs_thy sel_specs;
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   681
    val update_defs = get_defs defs_thy update_specs;
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   682
    val make_defs = get_defs defs_thy make_specs;
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   683
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   684
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   685
    (* 3rd stage: thms_thy *)
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   686
4895
0fad2acb45fb misc tuning;
wenzelm
parents: 4894
diff changeset
   687
    val parent_simps = flat (map #simps parents);
5698
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   688
    val prove = prove_simp defs_thy [];
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   689
4895
0fad2acb45fb misc tuning;
wenzelm
parents: 4894
diff changeset
   690
    val sel_convs = map (prove (parent_simps @ sel_defs @ field_simps)) sel_props;
0fad2acb45fb misc tuning;
wenzelm
parents: 4894
diff changeset
   691
    val update_convs = map (prove (parent_simps @ update_defs @ sel_convs)) update_props;
4894
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   692
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   693
    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
   694
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   695
    val thms_thy =
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   696
      defs_thy
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   697
      |> (PureThy.add_tthmss o map Attribute.none)
4895
0fad2acb45fb misc tuning;
wenzelm
parents: 4894
diff changeset
   698
        [("select_defs", sel_defs),
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   699
          ("update_defs", update_defs),
4894
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   700
          ("make_defs", make_defs),
4895
0fad2acb45fb misc tuning;
wenzelm
parents: 4894
diff changeset
   701
          ("select_convs", sel_convs),
4894
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   702
          ("update_convs", update_convs)]
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   703
      |> PureThy.add_tthmss [(("simps", simps), [Simplifier.simp_add_global])];
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   704
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   705
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   706
    (* 4th stage: final_thy *)
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   707
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   708
    val final_thy =
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   709
      thms_thy
4895
0fad2acb45fb misc tuning;
wenzelm
parents: 4894
diff changeset
   710
      |> put_record name {args = args, parent = parent, fields = fields, simps = simps}
5698
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   711
      |> add_record_splits field_splits
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   712
      |> Theory.parent_path;
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   713
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   714
  in final_thy end;
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
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   718
(** theory extender interface **)
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   719
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   720
(* prepare arguments *)
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   721
4894
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   722
(*note: read_raw_typ avoids expanding type abbreviations*)
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   723
fun read_raw_parent sign s =
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   724
  (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
   725
    Type (name, Ts) => (Ts, name)
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   726
  | _ => error ("Bad parent record specification: " ^ quote s));
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   727
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   728
fun read_typ sign (env, s) =
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   729
  let
5060
7b86df67cc1a def_sort;
wenzelm
parents: 5052
diff changeset
   730
    fun def_sort (x, ~1) = assoc (env, x)
7b86df67cc1a def_sort;
wenzelm
parents: 5052
diff changeset
   731
      | def_sort _ = None;
7b86df67cc1a def_sort;
wenzelm
parents: 5052
diff changeset
   732
    val T = Type.no_tvars (Sign.read_typ (sign, def_sort) s) handle TYPE (msg, _, _) => error msg;
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   733
  in (Term.add_typ_tfrees (T, env), T) end;
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   734
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   735
fun cert_typ sign (env, raw_T) =
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   736
  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
   737
  in (Term.add_typ_tfrees (T, env), T) end;
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   738
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   739
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   740
(* add_record *)
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   741
4895
0fad2acb45fb misc tuning;
wenzelm
parents: 4894
diff changeset
   742
(*we do all preparations and error checks here, deferring the real
0fad2acb45fb misc tuning;
wenzelm
parents: 4894
diff changeset
   743
  work to record_definition*)
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   744
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   745
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
   746
  let
4970
8b65444edbb0 Changed require to requires for MLWorks
paulson
parents: 4967
diff changeset
   747
    val _ = Theory.requires thy "Record" "record definitions";
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   748
    val sign = Theory.sign_of thy;
5698
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   749
    val _ = message ("Defining record " ^ quote bname ^ " ...");
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   750
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   751
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   752
    (* parents *)
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   753
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   754
    fun prep_inst T = snd (cert_typ sign ([], T));
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   755
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   756
    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
   757
      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
   758
    val parents = add_parents thy (parent, []);
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   759
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   760
    val init_env =
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   761
      (case parent of
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   762
        None => []
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   763
      | Some (types, _) => foldr Term.add_typ_tfrees (types, []));
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   764
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   765
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   766
    (* fields *)
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   767
4967
c9c481bc0216 foldl_map prep_field;
wenzelm
parents: 4895
diff changeset
   768
    fun prep_field (env, (c, raw_T)) =
c9c481bc0216 foldl_map prep_field;
wenzelm
parents: 4895
diff changeset
   769
      let val (env', T) = prep_typ sign (env, raw_T) handle ERROR =>
c9c481bc0216 foldl_map prep_field;
wenzelm
parents: 4895
diff changeset
   770
        error ("The error(s) above occured in field " ^ quote c)
c9c481bc0216 foldl_map prep_field;
wenzelm
parents: 4895
diff changeset
   771
      in (env', (c, T)) end;
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   772
4967
c9c481bc0216 foldl_map prep_field;
wenzelm
parents: 4895
diff changeset
   773
    val (envir, bfields) = foldl_map prep_field (init_env, raw_fields);
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   774
    val envir_names = map fst envir;
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   775
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   776
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   777
    (* args *)
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   778
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   779
    val defaultS = Sign.defaultS sign;
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   780
    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
   781
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   782
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   783
    (* errors *)
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   784
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   785
    val name = Sign.full_name sign bname;
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   786
    val err_dup_record =
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   787
      if is_none (get_record thy name) then []
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   788
      else ["Duplicate definition of record " ^ quote name];
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   789
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   790
    val err_dup_parms =
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   791
      (case duplicates params of
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   792
        [] => []
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   793
      | dups => ["Duplicate parameter(s) " ^ commas dups]);
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   794
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   795
    val err_extra_frees =
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   796
      (case gen_rems (op =) (envir_names, params) of
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   797
        [] => []
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   798
      | extras => ["Extra free type variable(s) " ^ commas extras]);
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   799
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   800
    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
   801
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   802
    val err_dup_fields =
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   803
      (case duplicates (map fst bfields) of
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   804
        [] => []
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   805
      | dups => ["Duplicate field(s) " ^ commas_quote dups]);
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   806
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   807
    val err_bad_fields =
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   808
      if forall (not_equal moreN o fst) bfields then []
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   809
      else ["Illegal field name " ^ quote moreN];
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   810
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   811
    val err_dup_sorts =
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   812
      (case duplicates envir_names of
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   813
        [] => []
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   814
      | dups => ["Inconsistent sort constraints for " ^ commas dups]);
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   815
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   816
    val errs =
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   817
      err_dup_record @ err_dup_parms @ err_extra_frees @ err_no_fields @
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   818
      err_dup_fields @ err_bad_fields @ err_dup_sorts;
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   819
  in
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   820
    if null errs then () else error (cat_lines errs);
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   821
    thy |> record_definition (args, bname) parent parents bfields
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   822
  end
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   823
  handle ERROR => error ("Failed to define record " ^ quote bname);
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   824
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   825
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
   826
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
   827
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   828
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   829
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   830
(** setup theory **)
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   831
5698
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   832
fun add_wrapper wrapper thy =
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   833
  let val r = claset_ref_of thy
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   834
  in r := ! r addSWrapper wrapper; thy end;
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   835
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   836
val setup =
5006
cdc86a914e63 adapted to new theory data interface;
wenzelm
parents: 5001
diff changeset
   837
 [RecordsData.init,
5698
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   838
  Theory.add_trfuns ([], parse_translation, [], []),
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   839
  add_wrapper record_split_wrapper];
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   840
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   841
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   842
end;
5698
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   843
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   844
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   845
structure BasicRecordPackage: BASIC_RECORD_PACKAGE = RecordPackage;
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   846
open BasicRecordPackage;