src/HOL/Tools/record_package.ML
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derive cases/induct rules for ``more'' parts;
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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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    License:    GPL (GNU GENERAL PUBLIC LICENSE)
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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_simproc: simproc
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  val record_split_tac: int -> tactic
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  val record_split_name: string
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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 updateN: string
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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 * {simps: thm list, iffs: thm list}
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  val add_record_i: (string list * bstring) -> (typ list * string) option
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    -> (bstring * typ) list -> theory -> theory * {simps: thm list, iffs: thm list}
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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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(*** theory context references ***)
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val product_typeN = "Record.product_type";
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val product_typeI = thm "product_typeI";
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val product_type_inject = thm "product_type_inject";
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val product_type_conv1 = thm "product_type_conv1";
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val product_type_conv2 = thm "product_type_conv2";
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val product_type_induct = thm "product_type_induct";
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val product_type_cases = thm "product_type_cases";
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val product_type_split_paired_all = thm "product_type_split_paired_all";
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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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(* fundamental syntax *)
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fun prune n xs = Library.drop (n, xs);
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fun prefix_base s = NameSpace.map_base (fn bname => s ^ bname);
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val Trueprop = HOLogic.mk_Trueprop;
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fun All xs t = Term.list_all_free (xs, t);
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infix 9 $$;
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infix 0 :== ===;
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infixr 0 ==>;
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val (op $$) = Term.list_comb;
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val (op :==) = Logic.mk_defpair;
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val (op ===) = Trueprop o HOLogic.mk_eq;
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val (op ==>) = Logic.mk_implies;
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(* proof tools *)
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fun simp_all_tac ss simps = ALLGOALS (Simplifier.asm_full_simp_tac (ss addsimps simps));
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fun try_param_tac x s rule i st =
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  res_inst_tac [(x, (case Tactic.innermost_params i st of [] => s | (p, _) :: _ => p))] rule i st;
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(*** syntax operations ***)
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(** name components **)
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val rN = "r";
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val moreN = "more";
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val schemeN = "_scheme";
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val field_typeN = "_field_type";
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val fieldN = "_field";
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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 extendN = "extend";
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val truncateN = "truncate";
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val fieldsN = "fields";
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(*see typedef_package.ML*)
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val RepN = "Rep_";
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val AbsN = "Abs_";
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(** tuple operations **)
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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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(* morphisms *)
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fun mk_Rep U (c, T) =
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  Const (suffix field_typeN (prefix_base RepN c),
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    mk_fieldT ((c, T), U) --> HOLogic.mk_prodT (T, U));
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fun mk_Abs U (c, T) =
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  Const (suffix field_typeN (prefix_base AbsN c),
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    HOLogic.mk_prodT (T, U) --> mk_fieldT ((c, T), U));
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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 mk_field ((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 fieldN c, [T, U] ---> mk_fieldT ((c, T), U)) $ t $ u end;
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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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fun mk_named_sels names r = names ~~ map (mk_sel r) names;
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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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(** concrete syntax for records **)
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(* parse translations *)
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fun gen_field_tr mark sfx (t as Const (c, _) $ Const (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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fun update_name_tr (Free (x, T) :: ts) = Free (suffix updateN x, T) $$ ts
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  | update_name_tr (Const (x, T) :: ts) = Const (suffix updateN x, T) $$ ts
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  | update_name_tr (((c as Const ("_constrain", _)) $ t $ ty) :: ts) =
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      (c $ update_name_tr [t] $ (Syntax.const "fun" $ ty $ Syntax.const "dummy")) $$ ts
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  | update_name_tr ts = raise TERM ("update_name_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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  ("_update_name", update_name_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
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    (fn Const ("Unity", _) => true | _ => false) "_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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  field_inducts: thm list,
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  field_cases: thm list,
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  simps: thm list};
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fun make_record_info args parent fields field_inducts field_cases simps =
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 {args = args, parent = parent, fields = fields, field_inducts = field_inducts,
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  field_cases = field_cases, simps = simps}: record_info;
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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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  field_inducts: thm list,
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  field_cases: thm list,
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  simps: thm list};
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fun make_parent_info name fields field_inducts field_cases simps =
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 {name = name, fields = fields, field_inducts = field_inducts,
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  field_cases = field_cases, simps = simps}: parent_info;
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(* data kind 'HOL/records' *)
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type record_data =
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 {records: record_info Symtab.table,
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  sel_upd:
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   {selectors: unit Symtab.table,
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    updates: string Symtab.table,
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    simpset: Simplifier.simpset},
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  field_splits:
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   {fields: unit Symtab.table,
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    simpset: Simplifier.simpset}};
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fun make_record_data records sel_upd field_splits =
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 {records = records, sel_upd = sel_upd, field_splits = field_splits}: record_data;
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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 = record_data;
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  val empty =
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    make_record_data Symtab.empty
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      {selectors = Symtab.empty, updates = Symtab.empty, simpset = HOL_basic_ss}
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      {fields = Symtab.empty, simpset = HOL_basic_ss};
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daa00919502b theory data: copy;
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  val copy = I;
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  val finish = I;
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  val prep_ext = I;
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  fun merge
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   ({records = recs1,
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     sel_upd = {selectors = sels1, updates = upds1, simpset = ss1},
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     field_splits = {fields = flds1, simpset = fld_ss1}},
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    {records = recs2,
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     sel_upd = {selectors = sels2, updates = upds2, simpset = ss2},
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   380
     field_splits = {fields = flds2, simpset = fld_ss2}}) =
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   381
    make_record_data
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      (Symtab.merge (K true) (recs1, recs2))
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   383
      {selectors = Symtab.merge (K true) (sels1, sels2),
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diff changeset
   384
        updates = Symtab.merge (K true) (upds1, upds2),
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        simpset = Simplifier.merge_ss (ss1, ss2)}
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diff changeset
   386
      {fields = Symtab.merge (K true) (flds1, flds2),
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   387
        simpset = Simplifier.merge_ss (fld_ss1, fld_ss2)};
4867
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7178
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   389
  fun print sg ({records = recs, ...}: record_data) =
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
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   390
    let
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
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   391
      val prt_typ = Sign.pretty_typ sg;
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   392
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
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   393
      fun pretty_parent None = []
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   394
        | pretty_parent (Some (Ts, name)) =
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   395
            [Pretty.block [prt_typ (Type (name, Ts)), Pretty.str " +"]];
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   396
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
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   397
      fun pretty_field (c, T) = Pretty.block
12129
964f5ffe13d0 fixed print_records;
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diff changeset
   398
        [Pretty.str (Sign.cond_extern sg Sign.constK c), Pretty.str " ::",
964f5ffe13d0 fixed print_records;
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diff changeset
   399
          Pretty.brk 1, Pretty.quote (prt_typ T)];
4867
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   401
      fun pretty_record (name, {args, parent, fields, ...}: record_info) =
11927
96f267adc029 provodes induct/cases for use with corresponding Isar methods;
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diff changeset
   402
        Pretty.block (Pretty.fbreaks (Pretty.block
96f267adc029 provodes induct/cases for use with corresponding Isar methods;
wenzelm
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diff changeset
   403
          [prt_typ (Type (name, map TFree args)), Pretty.str " = "] ::
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
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diff changeset
   404
          pretty_parent parent @ map pretty_field fields));
12129
964f5ffe13d0 fixed print_records;
wenzelm
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diff changeset
   405
    in map pretty_record (Symtab.dest recs) |> Pretty.chunks |> Pretty.writeln end;
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
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   406
end;
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
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diff changeset
   407
5006
cdc86a914e63 adapted to new theory data interface;
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diff changeset
   408
structure RecordsData = TheoryDataFun(RecordsArgs);
cdc86a914e63 adapted to new theory data interface;
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diff changeset
   409
val print_records = RecordsData.print;
cdc86a914e63 adapted to new theory data interface;
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diff changeset
   410
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
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diff changeset
   411
7178
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
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diff changeset
   412
(* access 'records' *)
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
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diff changeset
   413
7178
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
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diff changeset
   414
fun get_record thy name = Symtab.lookup (#records (RecordsData.get thy), name);
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   415
4890
f0a24bad990a concrete syntax for record terms;
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diff changeset
   416
fun put_record name info thy =
7178
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
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diff changeset
   417
  let
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
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diff changeset
   418
    val {records, sel_upd, field_splits} = RecordsData.get thy;
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
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diff changeset
   419
    val data = make_record_data (Symtab.update ((name, info), records)) sel_upd field_splits;
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
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diff changeset
   420
  in RecordsData.put data thy end;
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
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diff changeset
   421
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
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diff changeset
   422
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
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diff changeset
   423
(* access 'sel_upd' *)
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
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diff changeset
   424
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
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diff changeset
   425
fun get_sel_upd sg = #sel_upd (RecordsData.get_sg sg);
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
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diff changeset
   426
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
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diff changeset
   427
fun get_selectors sg name = Symtab.lookup (#selectors (get_sel_upd sg), name);
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
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diff changeset
   428
fun get_updates sg name = Symtab.lookup (#updates (get_sel_upd sg), name);
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
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diff changeset
   429
fun get_simpset sg = #simpset (get_sel_upd sg);
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
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diff changeset
   430
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
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diff changeset
   431
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
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diff changeset
   432
fun put_sel_upd names simps thy =
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
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diff changeset
   433
  let
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
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diff changeset
   434
    val sels = map (rpair ()) names;
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
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diff changeset
   435
    val upds = map (suffix updateN) names ~~ names;
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
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diff changeset
   436
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
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diff changeset
   437
    val {records, sel_upd = {selectors, updates, simpset}, field_splits} = RecordsData.get thy;
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   438
    val data = make_record_data records
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   439
      {selectors = Symtab.extend (selectors, sels),
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
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diff changeset
   440
        updates = Symtab.extend (updates, upds),
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
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diff changeset
   441
        simpset = Simplifier.addsimps (simpset, simps)}
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   442
      field_splits;
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   443
  in RecordsData.put data thy end;
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   444
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
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diff changeset
   445
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   446
(* access 'field_splits' *)
5698
2b5d9bdec5af field types: datatype;
wenzelm
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diff changeset
   447
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   448
fun add_record_splits splits thy =
2b5d9bdec5af field types: datatype;
wenzelm
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diff changeset
   449
  let
7178
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   450
    val {records, sel_upd, field_splits = {fields, simpset}} = RecordsData.get thy;
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   451
    val flds = map (rpair () o fst) splits;
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   452
    val simps = map snd splits;
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   453
    val data = make_record_data records sel_upd
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   454
      {fields = Symtab.extend (fields, flds), simpset = Simplifier.addsimps (simpset, simps)};
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   455
  in RecordsData.put data thy end;
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   456
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   457
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   458
(* parent records *)
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   459
12247
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   460
fun add_parents thy None parents = parents
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   461
  | add_parents thy (Some (types, name)) parents =
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   462
      let
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   463
        val sign = Theory.sign_of thy;
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   464
        fun err msg = error (msg ^ " parent record " ^ quote name);
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   465
    
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   466
        val {args, parent, fields, field_inducts, field_cases, simps} =
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   467
          (case get_record thy name of Some info => info | None => err "Unknown");
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   468
        val _ = if length types <> length args then err "Bad number of arguments for" else ();
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   469
    
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   470
        fun bad_inst ((x, S), T) =
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   471
          if Sign.of_sort sign (T, S) then None else Some x
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   472
        val bads = mapfilter bad_inst (args ~~ types);
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   473
    
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   474
        val inst = map fst args ~~ types;
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   475
        val subst = Term.map_type_tfree (fn (x, _) => the (assoc (inst, x)));
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   476
        val parent' = apsome (apfst (map subst)) parent;
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   477
        val fields' = map (apsnd subst) fields;
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   478
      in
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   479
        if not (null bads) then
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   480
          err ("Ill-sorted instantiation of " ^ commas bads ^ " in")
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   481
        else add_parents thy parent'
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   482
          (make_parent_info name fields' field_inducts field_cases simps :: parents)
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   483
      end;
4867
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
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   486
7178
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   487
(** record simproc **)
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   488
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   489
local
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   490
8100
6186ee807f2e replaced HOLogic.termTVar by HOLogic.termT;
wenzelm
parents: 7178
diff changeset
   491
val sel_upd_pat = [Thm.read_cterm (Theory.sign_of HOL.thy) ("s (u k r)", HOLogic.termT)];
7178
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   492
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   493
fun proc sg _ t =
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   494
  (case t of (sel as Const (s, _)) $ ((upd as Const (u, _)) $ k $ r) =>
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   495
    (case get_selectors sg s of Some () =>
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   496
      (case get_updates sg u of Some u_name =>
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   497
        let
11967
49c7f03cd311 use Tactic.prove;
wenzelm
parents: 11959
diff changeset
   498
          fun mk_free x t = Free (x, fastype_of t);
49c7f03cd311 use Tactic.prove;
wenzelm
parents: 11959
diff changeset
   499
          val k' = mk_free "k" k;
49c7f03cd311 use Tactic.prove;
wenzelm
parents: 11959
diff changeset
   500
          val r' = mk_free "r" r;
7178
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   501
          val t' = sel $ (upd $ k' $ r');
11967
49c7f03cd311 use Tactic.prove;
wenzelm
parents: 11959
diff changeset
   502
          fun prove prop =
49c7f03cd311 use Tactic.prove;
wenzelm
parents: 11959
diff changeset
   503
            Tactic.prove sg ["k", "r"] [] prop (K (simp_all_tac (get_simpset sg) []));
7178
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   504
        in
11967
49c7f03cd311 use Tactic.prove;
wenzelm
parents: 11959
diff changeset
   505
          if u_name = s then Some (prove (Logic.mk_equals (t', k')))
49c7f03cd311 use Tactic.prove;
wenzelm
parents: 11959
diff changeset
   506
          else Some (prove (Logic.mk_equals (t', sel $ r')))
7178
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   507
        end
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   508
      | None => None)
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   509
    | None => None)
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   510
  | _ => None);
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   511
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   512
in
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   513
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   514
val record_simproc = Simplifier.mk_simproc "record_simp" sel_upd_pat proc;
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   515
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   516
end;
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   517
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   518
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   519
5698
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   520
(** record field splitting **)
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   521
6358
92dbe243555f outer syntax for 'record';
wenzelm
parents: 6092
diff changeset
   522
(* tactic *)
92dbe243555f outer syntax for 'record';
wenzelm
parents: 6092
diff changeset
   523
5698
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   524
fun record_split_tac i st =
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   525
  let
7178
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   526
    val {field_splits = {fields, simpset}, ...} = RecordsData.get_sg (Thm.sign_of_thm st);
5698
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   527
7178
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   528
    fun is_fieldT (_, Type (a, [_, _])) = is_some (Symtab.lookup (fields, a))
5698
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   529
      | is_fieldT _ = false;
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   530
    val params = Logic.strip_params (Library.nth_elem (i - 1, Thm.prems_of st));
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   531
  in
7178
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   532
    if exists is_fieldT params then Simplifier.full_simp_tac simpset i st
5698
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   533
    else Seq.empty
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   534
  end handle Library.LIST _ => Seq.empty;
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   535
6358
92dbe243555f outer syntax for 'record';
wenzelm
parents: 6092
diff changeset
   536
92dbe243555f outer syntax for 'record';
wenzelm
parents: 6092
diff changeset
   537
(* wrapper *)
92dbe243555f outer syntax for 'record';
wenzelm
parents: 6092
diff changeset
   538
5707
b0e631634b5a field_injects [iffs];
wenzelm
parents: 5698
diff changeset
   539
val record_split_name = "record_split_tac";
b0e631634b5a field_injects [iffs];
wenzelm
parents: 5698
diff changeset
   540
val record_split_wrapper = (record_split_name, fn tac => record_split_tac ORELSE' tac);
5698
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   541
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   542
6358
92dbe243555f outer syntax for 'record';
wenzelm
parents: 6092
diff changeset
   543
(* method *)
92dbe243555f outer syntax for 'record';
wenzelm
parents: 6092
diff changeset
   544
92dbe243555f outer syntax for 'record';
wenzelm
parents: 6092
diff changeset
   545
val record_split_method =
9705
8eecca293907 Method.SIMPLE_METHOD';
wenzelm
parents: 9626
diff changeset
   546
  ("record_split", Method.no_args (Method.SIMPLE_METHOD' HEADGOAL record_split_tac),
6358
92dbe243555f outer syntax for 'record';
wenzelm
parents: 6092
diff changeset
   547
    "split record fields");
92dbe243555f outer syntax for 'record';
wenzelm
parents: 6092
diff changeset
   548
92dbe243555f outer syntax for 'record';
wenzelm
parents: 6092
diff changeset
   549
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   550
(** internal theory extenders **)
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   551
11832
8fca3665d1ee use abstract product type instead of datatype;
wenzelm
parents: 11739
diff changeset
   552
(* field_typedefs *)
5698
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   553
11832
8fca3665d1ee use abstract product type instead of datatype;
wenzelm
parents: 11739
diff changeset
   554
fun field_typedefs zeta moreT names theory =
5698
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   555
  let
11832
8fca3665d1ee use abstract product type instead of datatype;
wenzelm
parents: 11739
diff changeset
   556
    val alpha = "'a";
8fca3665d1ee use abstract product type instead of datatype;
wenzelm
parents: 11739
diff changeset
   557
    val aT = TFree (alpha, HOLogic.termS);
8fca3665d1ee use abstract product type instead of datatype;
wenzelm
parents: 11739
diff changeset
   558
    val UNIV = HOLogic.mk_UNIV (HOLogic.mk_prodT (aT, moreT));
5698
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   559
11832
8fca3665d1ee use abstract product type instead of datatype;
wenzelm
parents: 11739
diff changeset
   560
    fun type_def (thy, name) =
11940
80365073b8b3 removed "more" sort;
wenzelm
parents: 11934
diff changeset
   561
      let val (thy', {type_definition, set_def = Some def, ...}) =
80365073b8b3 removed "more" sort;
wenzelm
parents: 11934
diff changeset
   562
        thy |> setmp TypedefPackage.quiet_mode true
11832
8fca3665d1ee use abstract product type instead of datatype;
wenzelm
parents: 11739
diff changeset
   563
          (TypedefPackage.add_typedef_i true None
8fca3665d1ee use abstract product type instead of datatype;
wenzelm
parents: 11739
diff changeset
   564
            (suffix field_typeN (Sign.base_name name), [alpha, zeta], Syntax.NoSyn) UNIV None
8fca3665d1ee use abstract product type instead of datatype;
wenzelm
parents: 11739
diff changeset
   565
          (Tactic.rtac UNIV_witness 1))
8fca3665d1ee use abstract product type instead of datatype;
wenzelm
parents: 11739
diff changeset
   566
      in (thy', Tactic.rewrite_rule [def] type_definition) end
8fca3665d1ee use abstract product type instead of datatype;
wenzelm
parents: 11739
diff changeset
   567
  in foldl_map type_def (theory, names) end;
5698
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   568
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   569
4894
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   570
(* field_definitions *)
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   571
11832
8fca3665d1ee use abstract product type instead of datatype;
wenzelm
parents: 11739
diff changeset
   572
fun field_definitions fields names xs alphas zeta moreT more vars named_vars thy =
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   573
  let
5698
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   574
    val sign = Theory.sign_of thy;
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   575
    val base = Sign.base_name;
5698
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   576
    val full_path = Sign.full_name_path sign;
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   577
11832
8fca3665d1ee use abstract product type instead of datatype;
wenzelm
parents: 11739
diff changeset
   578
    val xT = TFree (variant alphas "'x", HOLogic.termS);
8fca3665d1ee use abstract product type instead of datatype;
wenzelm
parents: 11739
diff changeset
   579
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   580
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   581
    (* prepare declarations and definitions *)
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   582
5698
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   583
    (*field constructors*)
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   584
    val field_decls = map (mk_fieldC moreT) fields;
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   585
11832
8fca3665d1ee use abstract product type instead of datatype;
wenzelm
parents: 11739
diff changeset
   586
    fun mk_field_spec ((c, T), v) =
8fca3665d1ee use abstract product type instead of datatype;
wenzelm
parents: 11739
diff changeset
   587
      Term.head_of (mk_field ((c, v), more)) :==
8fca3665d1ee use abstract product type instead of datatype;
wenzelm
parents: 11739
diff changeset
   588
        lambda v (lambda more (mk_Abs moreT (c, T) $ (HOLogic.mk_prod (v, more))));
8fca3665d1ee use abstract product type instead of datatype;
wenzelm
parents: 11739
diff changeset
   589
    val field_specs = map mk_field_spec (fields ~~ vars);
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   590
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   591
    (*field destructors*)
5698
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   592
    val dest_decls = map (mk_fstC moreT) fields @ map (mk_sndC moreT) fields;
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   593
11832
8fca3665d1ee use abstract product type instead of datatype;
wenzelm
parents: 11739
diff changeset
   594
    fun mk_dest_spec dest sel (c, T) =
5698
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   595
      let val p = Free ("p", mk_fieldT ((c, T), moreT));
11832
8fca3665d1ee use abstract product type instead of datatype;
wenzelm
parents: 11739
diff changeset
   596
      in Term.head_of (dest p) :== lambda p (sel (mk_Rep moreT (c, T) $ p)) end;
8fca3665d1ee use abstract product type instead of datatype;
wenzelm
parents: 11739
diff changeset
   597
    val dest_specs1 = map (mk_dest_spec mk_fst HOLogic.mk_fst) fields;
8fca3665d1ee use abstract product type instead of datatype;
wenzelm
parents: 11739
diff changeset
   598
    val dest_specs2 = map (mk_dest_spec mk_snd HOLogic.mk_snd) fields;
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   599
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   600
11832
8fca3665d1ee use abstract product type instead of datatype;
wenzelm
parents: 11739
diff changeset
   601
    (* 1st stage: defs_thy *)
5713
27d4fcf5fe5f fixed field_injects;
wenzelm
parents: 5707
diff changeset
   602
11832
8fca3665d1ee use abstract product type instead of datatype;
wenzelm
parents: 11739
diff changeset
   603
    val (defs_thy, (((typedefs, field_defs), dest_defs1), dest_defs2)) =
8fca3665d1ee use abstract product type instead of datatype;
wenzelm
parents: 11739
diff changeset
   604
      thy
8fca3665d1ee use abstract product type instead of datatype;
wenzelm
parents: 11739
diff changeset
   605
      |> field_typedefs zeta moreT names
8fca3665d1ee use abstract product type instead of datatype;
wenzelm
parents: 11739
diff changeset
   606
      |>> (Theory.add_consts_i o map (Syntax.no_syn o apfst base)) (field_decls @ dest_decls)
8fca3665d1ee use abstract product type instead of datatype;
wenzelm
parents: 11739
diff changeset
   607
      |>>> (PureThy.add_defs_i false o map Thm.no_attributes) field_specs
8fca3665d1ee use abstract product type instead of datatype;
wenzelm
parents: 11739
diff changeset
   608
      |>>> (PureThy.add_defs_i false o map Thm.no_attributes) dest_specs1
8fca3665d1ee use abstract product type instead of datatype;
wenzelm
parents: 11739
diff changeset
   609
      |>>> (PureThy.add_defs_i false o map Thm.no_attributes) dest_specs2;
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   610
11832
8fca3665d1ee use abstract product type instead of datatype;
wenzelm
parents: 11739
diff changeset
   611
    val prod_types = map (fn (((a, b), c), d) => product_typeI OF [a, b, c, d])
8fca3665d1ee use abstract product type instead of datatype;
wenzelm
parents: 11739
diff changeset
   612
      (typedefs ~~ field_defs ~~ dest_defs1 ~~ dest_defs2);
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   613
5698
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   614
11832
8fca3665d1ee use abstract product type instead of datatype;
wenzelm
parents: 11739
diff changeset
   615
    (* 2nd stage: thms_thy *)
5698
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   616
11832
8fca3665d1ee use abstract product type instead of datatype;
wenzelm
parents: 11739
diff changeset
   617
    fun make th = map (fn prod_type => Drule.standard (th OF [prod_type])) prod_types;
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   618
11940
80365073b8b3 removed "more" sort;
wenzelm
parents: 11934
diff changeset
   619
    val dest_convs = make product_type_conv1 @ make product_type_conv2;
11832
8fca3665d1ee use abstract product type instead of datatype;
wenzelm
parents: 11739
diff changeset
   620
    val field_injects = make product_type_inject;
11927
96f267adc029 provodes induct/cases for use with corresponding Isar methods;
wenzelm
parents: 11923
diff changeset
   621
    val field_inducts = make product_type_induct;
96f267adc029 provodes induct/cases for use with corresponding Isar methods;
wenzelm
parents: 11923
diff changeset
   622
    val field_cases = make product_type_cases;
11832
8fca3665d1ee use abstract product type instead of datatype;
wenzelm
parents: 11739
diff changeset
   623
    val field_splits = make product_type_split_paired_all;
4894
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   624
11940
80365073b8b3 removed "more" sort;
wenzelm
parents: 11934
diff changeset
   625
    val (thms_thy, [field_defs', dest_defs', dest_convs', field_injects',
80365073b8b3 removed "more" sort;
wenzelm
parents: 11934
diff changeset
   626
        field_splits', field_inducts', field_cases']) = defs_thy
11927
96f267adc029 provodes induct/cases for use with corresponding Isar methods;
wenzelm
parents: 11923
diff changeset
   627
      |> (PureThy.add_thmss o map Thm.no_attributes)
11940
80365073b8b3 removed "more" sort;
wenzelm
parents: 11934
diff changeset
   628
       [("field_defs", field_defs),
80365073b8b3 removed "more" sort;
wenzelm
parents: 11934
diff changeset
   629
        ("dest_defs", dest_defs1 @ dest_defs2),
80365073b8b3 removed "more" sort;
wenzelm
parents: 11934
diff changeset
   630
        ("dest_convs", dest_convs),
80365073b8b3 removed "more" sort;
wenzelm
parents: 11934
diff changeset
   631
        ("field_injects", field_injects),
80365073b8b3 removed "more" sort;
wenzelm
parents: 11934
diff changeset
   632
        ("field_splits", field_splits),
80365073b8b3 removed "more" sort;
wenzelm
parents: 11934
diff changeset
   633
        ("field_inducts", field_inducts),
80365073b8b3 removed "more" sort;
wenzelm
parents: 11934
diff changeset
   634
        ("field_cases", field_cases)];
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   635
11940
80365073b8b3 removed "more" sort;
wenzelm
parents: 11934
diff changeset
   636
  in (thms_thy, dest_convs', field_injects', field_splits', field_inducts', field_cases') end;
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   637
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   638
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   639
(* record_definition *)
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   640
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   641
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
   642
  let
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   643
    val sign = Theory.sign_of thy;
12247
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   644
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   645
    val alphas = map fst args;
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   646
    val name = Sign.full_name sign bname;
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   647
    val full = Sign.full_name_path sign bname;
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   648
    val base = Sign.base_name;
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   649
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   650
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   651
    (* basic components *)
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   652
12247
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   653
    val ancestry = map (length o flat o map #fields) (Library.prefixes1 parents);
11927
96f267adc029 provodes induct/cases for use with corresponding Isar methods;
wenzelm
parents: 11923
diff changeset
   654
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   655
    val parent_fields = flat (map #fields parents);
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   656
    val parent_names = map fst parent_fields;
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   657
    val parent_types = map snd parent_fields;
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   658
    val parent_len = length parent_fields;
11927
96f267adc029 provodes induct/cases for use with corresponding Isar methods;
wenzelm
parents: 11923
diff changeset
   659
    val parent_xs = variantlist (map (base o fst) parent_fields, [moreN, rN]);
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   660
    val parent_vars = ListPair.map Free (parent_xs, parent_types);
4894
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   661
    val parent_named_vars = parent_names ~~ parent_vars;
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   662
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   663
    val fields = map (apfst full) bfields;
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   664
    val names = map fst fields;
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   665
    val types = map snd fields;
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   666
    val len = length fields;
11927
96f267adc029 provodes induct/cases for use with corresponding Isar methods;
wenzelm
parents: 11923
diff changeset
   667
    val xs = variantlist (map fst bfields, moreN :: rN :: parent_xs);
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   668
    val vars = ListPair.map Free (xs, types);
4894
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   669
    val named_vars = names ~~ vars;
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   670
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   671
    val all_fields = parent_fields @ fields;
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   672
    val all_names = parent_names @ names;
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   673
    val all_types = parent_types @ types;
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   674
    val all_len = parent_len + len;
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   675
    val all_xs = parent_xs @ xs;
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   676
    val all_vars = parent_vars @ vars;
4894
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   677
    val all_named_vars = parent_named_vars @ named_vars;
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   678
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   679
    val zeta = variant alphas "'z";
11940
80365073b8b3 removed "more" sort;
wenzelm
parents: 11934
diff changeset
   680
    val moreT = TFree (zeta, HOLogic.termS);
4895
0fad2acb45fb misc tuning;
wenzelm
parents: 4894
diff changeset
   681
    val more = Free (moreN, moreT);
5197
69c77ed95ba3 added more_update;
wenzelm
parents: 5060
diff changeset
   682
    val full_moreN = full moreN;
69c77ed95ba3 added more_update;
wenzelm
parents: 5060
diff changeset
   683
    fun more_part t = mk_more t full_moreN;
69c77ed95ba3 added more_update;
wenzelm
parents: 5060
diff changeset
   684
    fun more_part_update t x = mk_more_update t (full_moreN, x);
11927
96f267adc029 provodes induct/cases for use with corresponding Isar methods;
wenzelm
parents: 11923
diff changeset
   685
    val all_types_more = all_types @ [moreT];
96f267adc029 provodes induct/cases for use with corresponding Isar methods;
wenzelm
parents: 11923
diff changeset
   686
    val all_xs_more = all_xs @ [moreN];
4894
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   687
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   688
    val parent_more = funpow parent_len mk_snd;
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   689
    val idxs = 0 upto (len - 1);
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   690
11934
6c1bf72430b6 derived operations are now: make, extend, truncate (cf. derived_defs);
wenzelm
parents: 11927
diff changeset
   691
    val parentT = if null parent_fields then [] else [mk_recordT (parent_fields, HOLogic.unitT)];
6c1bf72430b6 derived operations are now: make, extend, truncate (cf. derived_defs);
wenzelm
parents: 11927
diff changeset
   692
    val r_parent = if null parent_fields then [] else [Free (rN, hd parentT)];
6c1bf72430b6 derived operations are now: make, extend, truncate (cf. derived_defs);
wenzelm
parents: 11927
diff changeset
   693
12247
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   694
    fun rec_schemeT n = mk_recordT (prune n all_fields, moreT);
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   695
    fun rec_scheme n = mk_record (prune n all_named_vars, more);
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   696
    fun recT n = mk_recordT (prune n all_fields, HOLogic.unitT);
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   697
    fun rec_ n = mk_record (prune n all_named_vars, HOLogic.unit);    
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   698
    fun r_scheme n = Free (rN, rec_schemeT n);
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   699
    fun r n = Free (rN, recT n);
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   700
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   701
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   702
    (* prepare print translation functions *)
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   703
5698
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   704
    val field_tr's =
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   705
      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
   706
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
    (* prepare declarations *)
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   709
12247
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   710
    val sel_decls = map (mk_selC (rec_schemeT 0)) bfields @
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   711
      [mk_moreC (rec_schemeT 0) (moreN, moreT)];
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   712
    val update_decls = map (mk_updateC (rec_schemeT 0)) bfields @
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   713
      [mk_more_updateC (rec_schemeT 0) (moreN, moreT)];
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   714
    val make_decl = (makeN, parentT ---> types ---> recT 0);
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   715
    val extend_decl = (extendN, recT 0 --> moreT --> rec_schemeT 0);
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   716
    val truncate_decl = (truncateN, rec_schemeT 0 --> recT 0);
4867
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
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   719
    (* prepare definitions *)
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   720
4895
0fad2acb45fb misc tuning;
wenzelm
parents: 4894
diff changeset
   721
    (*record (scheme) type abbreviation*)
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   722
    val recordT_specs =
12247
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   723
      [(suffix schemeN bname, alphas @ [zeta], rec_schemeT 0, Syntax.NoSyn),
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   724
        (bname, alphas, recT 0, Syntax.NoSyn)];
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   725
4894
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   726
    (*selectors*)
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   727
    fun mk_sel_spec (i, c) =
12247
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   728
      mk_sel (r_scheme 0) c :== mk_fst (funpow i mk_snd (parent_more (r_scheme 0)));
4894
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   729
    val sel_specs =
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   730
      ListPair.map mk_sel_spec (idxs, names) @
12247
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   731
        [more_part (r_scheme 0) :== funpow len mk_snd (parent_more (r_scheme 0))];
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   732
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   733
    (*updates*)
12247
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   734
    val all_sels = mk_named_sels all_names (r_scheme 0);
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   735
    fun mk_upd_spec (i, (c, x)) =
12247
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   736
      mk_update (r_scheme 0) (c, x) :==
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   737
        mk_record (nth_update (c, x) (parent_len + i, all_sels), more_part (r_scheme 0))
5197
69c77ed95ba3 added more_update;
wenzelm
parents: 5060
diff changeset
   738
    val update_specs =
69c77ed95ba3 added more_update;
wenzelm
parents: 5060
diff changeset
   739
      ListPair.map mk_upd_spec (idxs, named_vars) @
12247
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   740
        [more_part_update (r_scheme 0) more :== mk_record (all_sels, more)];
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   741
11934
6c1bf72430b6 derived operations are now: make, extend, truncate (cf. derived_defs);
wenzelm
parents: 11927
diff changeset
   742
    (*derived operations*)
12247
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   743
    val make_spec = Const (full makeN, parentT ---> types ---> recT 0) $$ r_parent $$ vars :==
11934
6c1bf72430b6 derived operations are now: make, extend, truncate (cf. derived_defs);
wenzelm
parents: 11927
diff changeset
   744
      mk_record (flat (map (mk_named_sels parent_names) r_parent) @ named_vars, HOLogic.unit);
12247
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   745
    val extend_spec = Const (full extendN, recT 0 --> moreT --> rec_schemeT 0) $ r 0 $ more :==
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   746
      mk_record (mk_named_sels all_names (r 0), more);
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   747
    val truncate_spec = Const (full truncateN, rec_schemeT 0 --> recT 0) $ r_scheme 0 :==
11934
6c1bf72430b6 derived operations are now: make, extend, truncate (cf. derived_defs);
wenzelm
parents: 11927
diff changeset
   748
      mk_record (all_sels, HOLogic.unit);
4894
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   749
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   750
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   751
    (* prepare propositions *)
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   752
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   753
    (*selectors*)
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   754
    val sel_props =
12247
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   755
      map (fn (c, x) => mk_sel (rec_scheme 0) c === x) named_vars @
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   756
        [more_part (rec_scheme 0) === more];
4894
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   757
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   758
    (*updates*)
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   759
    fun mk_upd_prop (i, (c, T)) =
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   760
      let val x' = Free (variant all_xs (base c ^ "'"), T) in
12247
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   761
        mk_update (rec_scheme 0) (c, x') ===
4894
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   762
          mk_record (nth_update (c, x') (parent_len + i, all_named_vars), more)
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   763
      end;
5197
69c77ed95ba3 added more_update;
wenzelm
parents: 5060
diff changeset
   764
    val update_props =
69c77ed95ba3 added more_update;
wenzelm
parents: 5060
diff changeset
   765
      ListPair.map mk_upd_prop (idxs, fields) @
69c77ed95ba3 added more_update;
wenzelm
parents: 5060
diff changeset
   766
        let val more' = Free (variant all_xs (moreN ^ "'"), moreT)
12247
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   767
        in [more_part_update (rec_scheme 0) more' === mk_record (all_named_vars, more')] end;
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   768
9626
c4a45149cc46 sel_upd proc: include 'more' pseudo-field;
wenzelm
parents: 9315
diff changeset
   769
    (*equality*)
c4a45149cc46 sel_upd proc: include 'more' pseudo-field;
wenzelm
parents: 9315
diff changeset
   770
    fun mk_sel_eq (t, T) =
12247
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   771
      let val t' = Term.abstract_over (r_scheme 0, t)
11927
96f267adc029 provodes induct/cases for use with corresponding Isar methods;
wenzelm
parents: 11923
diff changeset
   772
      in Trueprop (HOLogic.eq_const T $ Term.incr_boundvars 1 t' $ t') end;
12247
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   773
    val sel_eqs = map2 mk_sel_eq
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   774
      (map (mk_sel (r_scheme 0)) all_names @ [more_part (r_scheme 0)], all_types @ [moreT]);
9626
c4a45149cc46 sel_upd proc: include 'more' pseudo-field;
wenzelm
parents: 9315
diff changeset
   775
    val equality_prop =
12247
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   776
      Term.all (rec_schemeT 0) $ (Abs ("r", rec_schemeT 0,
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   777
        Term.all (rec_schemeT 0) $ (Abs ("r'", rec_schemeT 0,
9626
c4a45149cc46 sel_upd proc: include 'more' pseudo-field;
wenzelm
parents: 9315
diff changeset
   778
          Logic.list_implies (sel_eqs,
12247
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   779
            Trueprop (HOLogic.eq_const (rec_schemeT 0) $ Bound 1 $ Bound 0))))));
11927
96f267adc029 provodes induct/cases for use with corresponding Isar methods;
wenzelm
parents: 11923
diff changeset
   780
96f267adc029 provodes induct/cases for use with corresponding Isar methods;
wenzelm
parents: 11923
diff changeset
   781
    (*induct*)
12247
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   782
    fun induct_scheme_prop n =
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   783
      let val P = Free ("P", rec_schemeT n --> HOLogic.boolT) in
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   784
        (All (prune n all_xs_more ~~ prune n all_types_more)
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   785
          (Trueprop (P $ rec_scheme n)), Trueprop (P $ r_scheme n))
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   786
      end;
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   787
    fun induct_prop n =
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   788
      let val P = Free ("P", recT n --> HOLogic.boolT) in
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   789
        (All (prune n all_xs ~~ prune n all_types) (Trueprop (P $ rec_ n)), Trueprop (P $ r n))
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   790
      end;
11927
96f267adc029 provodes induct/cases for use with corresponding Isar methods;
wenzelm
parents: 11923
diff changeset
   791
96f267adc029 provodes induct/cases for use with corresponding Isar methods;
wenzelm
parents: 11923
diff changeset
   792
    (*cases*)
96f267adc029 provodes induct/cases for use with corresponding Isar methods;
wenzelm
parents: 11923
diff changeset
   793
    val C = Trueprop (Free (variant all_xs_more "C", HOLogic.boolT));
12247
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   794
    fun cases_scheme_prop n =
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   795
      All (prune n all_xs_more ~~ prune n all_types_more)
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   796
        ((r_scheme n === rec_scheme n) ==> C) ==> C;
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   797
    fun cases_prop n =
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   798
      All (prune n all_xs ~~ prune n all_types) ((r n === rec_ n) ==> C) ==> C;
9626
c4a45149cc46 sel_upd proc: include 'more' pseudo-field;
wenzelm
parents: 9315
diff changeset
   799
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   800
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   801
    (* 1st stage: fields_thy *)
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   802
11927
96f267adc029 provodes induct/cases for use with corresponding Isar methods;
wenzelm
parents: 11923
diff changeset
   803
    val (fields_thy, field_simps, field_injects, field_splits, field_inducts, field_cases) =
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   804
      thy
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   805
      |> Theory.add_path bname
11832
8fca3665d1ee use abstract product type instead of datatype;
wenzelm
parents: 11739
diff changeset
   806
      |> field_definitions fields names xs alphas zeta moreT more vars named_vars;
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   807
12247
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   808
    val all_field_inducts = flat (map #field_inducts parents) @ field_inducts;
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   809
    val all_field_cases = flat (map #field_cases parents) @ field_cases;
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   810
6092
d9db67970c73 eliminated tthm type and Attribute structure;
wenzelm
parents: 5890
diff changeset
   811
    val named_splits = map2 (fn (c, th) => (suffix field_typeN c, th)) (names, field_splits);
5698
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   812
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   813
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   814
    (* 2nd stage: defs_thy *)
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   815
11934
6c1bf72430b6 derived operations are now: make, extend, truncate (cf. derived_defs);
wenzelm
parents: 11927
diff changeset
   816
    val (defs_thy, (((sel_defs, update_defs), derived_defs))) =
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   817
      fields_thy
9626
c4a45149cc46 sel_upd proc: include 'more' pseudo-field;
wenzelm
parents: 9315
diff changeset
   818
      |> add_record_splits named_splits
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   819
      |> Theory.parent_path
5197
69c77ed95ba3 added more_update;
wenzelm
parents: 5060
diff changeset
   820
      |> 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
   821
      |> Theory.add_path bname
5197
69c77ed95ba3 added more_update;
wenzelm
parents: 5060
diff changeset
   822
      |> Theory.add_trfuns ([], [], field_tr's, [])
4894
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   823
      |> (Theory.add_consts_i o map Syntax.no_syn)
11934
6c1bf72430b6 derived operations are now: make, extend, truncate (cf. derived_defs);
wenzelm
parents: 11927
diff changeset
   824
        (sel_decls @ update_decls @ [make_decl, extend_decl, truncate_decl])
11832
8fca3665d1ee use abstract product type instead of datatype;
wenzelm
parents: 11739
diff changeset
   825
      |> (PureThy.add_defs_i false o map Thm.no_attributes) sel_specs
8fca3665d1ee use abstract product type instead of datatype;
wenzelm
parents: 11739
diff changeset
   826
      |>>> (PureThy.add_defs_i false o map Thm.no_attributes) update_specs
11934
6c1bf72430b6 derived operations are now: make, extend, truncate (cf. derived_defs);
wenzelm
parents: 11927
diff changeset
   827
      |>>> (PureThy.add_defs_i false o map Thm.no_attributes)
6c1bf72430b6 derived operations are now: make, extend, truncate (cf. derived_defs);
wenzelm
parents: 11927
diff changeset
   828
        [make_spec, extend_spec, truncate_spec];
11927
96f267adc029 provodes induct/cases for use with corresponding Isar methods;
wenzelm
parents: 11923
diff changeset
   829
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   830
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   831
    (* 3rd stage: thms_thy *)
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   832
12247
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   833
    val prove_standard = Tactic.prove_standard (Theory.sign_of defs_thy);
11967
49c7f03cd311 use Tactic.prove;
wenzelm
parents: 11959
diff changeset
   834
    fun prove_simp simps =
49c7f03cd311 use Tactic.prove;
wenzelm
parents: 11959
diff changeset
   835
      let val tac = simp_all_tac HOL_basic_ss simps
49c7f03cd311 use Tactic.prove;
wenzelm
parents: 11959
diff changeset
   836
      in fn prop => prove_standard [] [] prop (K tac) end;
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   837
11967
49c7f03cd311 use Tactic.prove;
wenzelm
parents: 11959
diff changeset
   838
    val parent_simps = flat (map #simps parents);
49c7f03cd311 use Tactic.prove;
wenzelm
parents: 11959
diff changeset
   839
    val sel_convs = map (prove_simp (parent_simps @ sel_defs @ field_simps)) sel_props;
49c7f03cd311 use Tactic.prove;
wenzelm
parents: 11959
diff changeset
   840
    val update_convs = map (prove_simp (parent_simps @ update_defs @ sel_convs)) update_props;
4894
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   841
12247
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   842
    fun induct_scheme n =
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   843
      let val (assm, concl) = induct_scheme_prop n in
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   844
        prove_standard [] [assm] concl (fn prems =>
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   845
          EVERY (map (fn rule => try_param_tac "p" rN rule 1) (prune n all_field_inducts))
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   846
          THEN resolve_tac prems 1)
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   847
      end;
11927
96f267adc029 provodes induct/cases for use with corresponding Isar methods;
wenzelm
parents: 11923
diff changeset
   848
12247
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   849
    fun cases_scheme n =
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   850
      prove_standard [] [] (cases_scheme_prop n) (fn _ =>
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   851
        EVERY (map (fn rule => try_param_tac "p" rN rule 1) (prune n all_field_cases))
11967
49c7f03cd311 use Tactic.prove;
wenzelm
parents: 11959
diff changeset
   852
        THEN simp_all_tac HOL_basic_ss []);
11927
96f267adc029 provodes induct/cases for use with corresponding Isar methods;
wenzelm
parents: 11923
diff changeset
   853
12247
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   854
    val induct_scheme0 = induct_scheme 0;
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   855
    val cases_scheme0 = cases_scheme 0;
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   856
    val more_induct_scheme = map induct_scheme ancestry;
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   857
    val more_cases_scheme = map cases_scheme ancestry;
11927
96f267adc029 provodes induct/cases for use with corresponding Isar methods;
wenzelm
parents: 11923
diff changeset
   858
12247
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   859
    val case_names = RuleCases.case_names [fieldsN];
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   860
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   861
    val (thms_thy, (([sel_convs', update_convs', sel_defs', update_defs', _],
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   862
        [induct_scheme', cases_scheme']), [more_induct_scheme', more_cases_scheme'])) =
11940
80365073b8b3 removed "more" sort;
wenzelm
parents: 11934
diff changeset
   863
      defs_thy
80365073b8b3 removed "more" sort;
wenzelm
parents: 11934
diff changeset
   864
      |> (PureThy.add_thmss o map Thm.no_attributes)
80365073b8b3 removed "more" sort;
wenzelm
parents: 11934
diff changeset
   865
       [("select_convs", sel_convs),
80365073b8b3 removed "more" sort;
wenzelm
parents: 11934
diff changeset
   866
        ("update_convs", update_convs),
80365073b8b3 removed "more" sort;
wenzelm
parents: 11934
diff changeset
   867
        ("select_defs", sel_defs),
80365073b8b3 removed "more" sort;
wenzelm
parents: 11934
diff changeset
   868
        ("update_defs", update_defs),
80365073b8b3 removed "more" sort;
wenzelm
parents: 11934
diff changeset
   869
        ("derived_defs", derived_defs)]
80365073b8b3 removed "more" sort;
wenzelm
parents: 11934
diff changeset
   870
      |>>> PureThy.add_thms
12247
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   871
       [(("induct_scheme", induct_scheme0),
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   872
         [case_names, InductAttrib.induct_type_global (suffix schemeN name)]),
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   873
        (("cases_scheme", cases_scheme0),
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   874
         [case_names, InductAttrib.cases_type_global (suffix schemeN name)])]
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   875
      |>>> (PureThy.add_thmss o map Thm.no_attributes)
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   876
        [("more_induct_scheme", more_induct_scheme),
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   877
         ("more_cases_scheme", more_cases_scheme)];
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   878
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   879
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   880
    (* 4th stage: more_thms_thy *)
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   881
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   882
    val prove_standard = Tactic.prove_standard (Theory.sign_of thms_thy);
11940
80365073b8b3 removed "more" sort;
wenzelm
parents: 11934
diff changeset
   883
12247
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   884
    fun induct (n, scheme) =
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   885
      let val (assm, concl) = induct_prop n in
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   886
        prove_standard [] [assm] concl (fn prems =>
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   887
          res_inst_tac [(rN, rN)] scheme 1
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   888
          THEN try_param_tac "x" "more" unit_induct 1
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   889
          THEN resolve_tac prems 1)
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   890
      end;
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   891
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   892
    fun cases (n, scheme) =
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   893
      prove_standard [] [] (cases_prop n) (fn _ =>
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   894
        res_inst_tac [(rN, rN)] scheme 1
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   895
        THEN simp_all_tac HOL_basic_ss [unit_all_eq1]);
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   896
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   897
    val induct0 = induct (0, induct_scheme');
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   898
    val cases0 = cases (0, cases_scheme');
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   899
    val more_induct = map induct (ancestry ~~ more_induct_scheme');
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   900
    val more_cases = map cases (ancestry ~~ more_cases_scheme');
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   901
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   902
    val equality = prove_standard [] [] equality_prop (fn _ =>
11967
49c7f03cd311 use Tactic.prove;
wenzelm
parents: 11959
diff changeset
   903
      fn st => let val [r, r'] = map #1 (rev (Tactic.innermost_params 1 st)) in
49c7f03cd311 use Tactic.prove;
wenzelm
parents: 11959
diff changeset
   904
        st |> (res_inst_tac [(rN, r)] cases_scheme' 1
49c7f03cd311 use Tactic.prove;
wenzelm
parents: 11959
diff changeset
   905
        THEN res_inst_tac [(rN, r')] cases_scheme' 1
49c7f03cd311 use Tactic.prove;
wenzelm
parents: 11959
diff changeset
   906
        THEN simp_all_tac HOL_basic_ss (parent_simps @ sel_convs))
49c7f03cd311 use Tactic.prove;
wenzelm
parents: 11959
diff changeset
   907
      end);
49c7f03cd311 use Tactic.prove;
wenzelm
parents: 11959
diff changeset
   908
12247
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   909
    val (more_thms_thy, [_, _, equality']) =
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   910
      thms_thy |> PureThy.add_thms
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   911
       [(("induct", induct0), [case_names, InductAttrib.induct_type_global name]),
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   912
        (("cases", cases0), [case_names, InductAttrib.cases_type_global name]),
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   913
        (("equality", equality), [Classical.xtra_intro_global])]
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   914
      |>> (#1 oo (PureThy.add_thmss o map Thm.no_attributes))
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   915
        [("more_induct", more_induct),
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   916
         ("more_cases", more_cases)];
11967
49c7f03cd311 use Tactic.prove;
wenzelm
parents: 11959
diff changeset
   917
11959
ed914e8a0fd1 exclude field_simps from user-level "simps";
wenzelm
parents: 11940
diff changeset
   918
    val simps = sel_convs' @ update_convs' @ [equality'];
6519
5bd1c469e742 iff_add_global (from simpdata.ML);
wenzelm
parents: 6394
diff changeset
   919
    val iffs = field_injects;
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   920
12247
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   921
    val more_thms_thy' =
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   922
      more_thms_thy |> (#1 oo PureThy.add_thmss)
5707
b0e631634b5a field_injects [iffs];
wenzelm
parents: 5698
diff changeset
   923
        [(("simps", simps), [Simplifier.simp_add_global]),
6519
5bd1c469e742 iff_add_global (from simpdata.ML);
wenzelm
parents: 6394
diff changeset
   924
         (("iffs", iffs), [iff_add_global])];
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   925
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   926
12247
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   927
    (* 5th stage: final_thy *)
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   928
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   929
    val final_thy =
12247
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   930
      more_thms_thy'
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   931
      |> put_record name (make_record_info args parent fields field_inducts field_cases
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   932
        (field_simps @ simps))
11940
80365073b8b3 removed "more" sort;
wenzelm
parents: 11934
diff changeset
   933
      |> put_sel_upd (names @ [full_moreN]) (field_simps @ sel_defs' @ update_defs')
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   934
      |> Theory.parent_path;
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   935
6519
5bd1c469e742 iff_add_global (from simpdata.ML);
wenzelm
parents: 6394
diff changeset
   936
  in (final_thy, {simps = simps, iffs = iffs}) end;
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   937
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   938
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   939
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   940
(** theory extender interface **)
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   941
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   942
(* prepare arguments *)
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   943
4894
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   944
(*note: read_raw_typ avoids expanding type abbreviations*)
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   945
fun read_raw_parent sign s =
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   946
  (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
   947
    Type (name, Ts) => (Ts, name)
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   948
  | _ => error ("Bad parent record specification: " ^ quote s));
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   949
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   950
fun read_typ sign (env, s) =
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   951
  let
5060
7b86df67cc1a def_sort;
wenzelm
parents: 5052
diff changeset
   952
    fun def_sort (x, ~1) = assoc (env, x)
7b86df67cc1a def_sort;
wenzelm
parents: 5052
diff changeset
   953
      | def_sort _ = None;
7b86df67cc1a def_sort;
wenzelm
parents: 5052
diff changeset
   954
    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
   955
  in (Term.add_typ_tfrees (T, env), T) end;
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   956
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   957
fun cert_typ sign (env, raw_T) =
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   958
  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
   959
  in (Term.add_typ_tfrees (T, env), T) end;
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   960
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   961
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   962
(* add_record *)
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   963
4895
0fad2acb45fb misc tuning;
wenzelm
parents: 4894
diff changeset
   964
(*we do all preparations and error checks here, deferring the real
0fad2acb45fb misc tuning;
wenzelm
parents: 4894
diff changeset
   965
  work to record_definition*)
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   966
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   967
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
   968
  let
4970
8b65444edbb0 Changed require to requires for MLWorks
paulson
parents: 4967
diff changeset
   969
    val _ = Theory.requires thy "Record" "record definitions";
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   970
    val sign = Theory.sign_of thy;
5698
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   971
    val _ = message ("Defining record " ^ quote bname ^ " ...");
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   972
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   973
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   974
    (* parents *)
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   975
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   976
    fun prep_inst T = snd (cert_typ sign ([], T));
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   977
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   978
    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
   979
      handle ERROR => error ("The error(s) above in parent record specification");
12247
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   980
    val parents = add_parents thy parent [];
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   981
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   982
    val init_env =
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   983
      (case parent of
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   984
        None => []
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   985
      | Some (types, _) => foldr Term.add_typ_tfrees (types, []));
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   986
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   987
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   988
    (* fields *)
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   989
4967
c9c481bc0216 foldl_map prep_field;
wenzelm
parents: 4895
diff changeset
   990
    fun prep_field (env, (c, raw_T)) =
c9c481bc0216 foldl_map prep_field;
wenzelm
parents: 4895
diff changeset
   991
      let val (env', T) = prep_typ sign (env, raw_T) handle ERROR =>
c9c481bc0216 foldl_map prep_field;
wenzelm
parents: 4895
diff changeset
   992
        error ("The error(s) above occured in field " ^ quote c)
c9c481bc0216 foldl_map prep_field;
wenzelm
parents: 4895
diff changeset
   993
      in (env', (c, T)) end;
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   994
4967
c9c481bc0216 foldl_map prep_field;
wenzelm
parents: 4895
diff changeset
   995
    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
   996
    val envir_names = map fst envir;
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   997
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   998
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   999
    (* args *)
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
  1000
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
  1001
    val defaultS = Sign.defaultS sign;
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
  1002
    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
  1003
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
  1004
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
  1005
    (* errors *)
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
  1006
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
  1007
    val name = Sign.full_name sign bname;
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
  1008
    val err_dup_record =
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
  1009
      if is_none (get_record thy name) then []
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
  1010
      else ["Duplicate definition of record " ^ quote name];
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
  1011
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
  1012
    val err_dup_parms =
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
  1013
      (case duplicates params of
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
  1014
        [] => []
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
  1015
      | dups => ["Duplicate parameter(s) " ^ commas dups]);
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
  1016
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
  1017
    val err_extra_frees =
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
  1018
      (case gen_rems (op =) (envir_names, params) of
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
  1019
        [] => []
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
  1020
      | extras => ["Extra free type variable(s) " ^ commas extras]);
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
  1021
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
  1022
    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
  1023
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
  1024
    val err_dup_fields =
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
  1025
      (case duplicates (map fst bfields) of
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
  1026
        [] => []
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
  1027
      | dups => ["Duplicate field(s) " ^ commas_quote dups]);
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
  1028
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
  1029
    val err_bad_fields =
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
  1030
      if forall (not_equal moreN o fst) bfields then []
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
  1031
      else ["Illegal field name " ^ quote moreN];
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
  1032
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
  1033
    val err_dup_sorts =
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
  1034
      (case duplicates envir_names of
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
  1035
        [] => []
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
  1036
      | dups => ["Inconsistent sort constraints for " ^ commas dups]);
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
  1037
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
  1038
    val errs =
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
  1039
      err_dup_record @ err_dup_parms @ err_extra_frees @ err_no_fields @
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
  1040
      err_dup_fields @ err_bad_fields @ err_dup_sorts;
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
  1041
  in
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
  1042
    if null errs then () else error (cat_lines errs);
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
  1043
    thy |> record_definition (args, bname) parent parents bfields
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
  1044
  end
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
  1045
  handle ERROR => error ("Failed to define record " ^ quote bname);
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
  1046
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
  1047
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
  1048
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
  1049
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
  1050
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
  1051
6358
92dbe243555f outer syntax for 'record';
wenzelm
parents: 6092
diff changeset
  1052
(** package setup **)
92dbe243555f outer syntax for 'record';
wenzelm
parents: 6092
diff changeset
  1053
92dbe243555f outer syntax for 'record';
wenzelm
parents: 6092
diff changeset
  1054
(* setup theory *)
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
  1055
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
  1056
val setup =
5006
cdc86a914e63 adapted to new theory data interface;
wenzelm
parents: 5001
diff changeset
  1057
 [RecordsData.init,
11490
f9ae28f55178 field_name_ast_tr superceded by constify_ast_tr in Pure;
wenzelm
parents: 11473
diff changeset
  1058
  Theory.add_trfuns ([], parse_translation, [], []),
6358
92dbe243555f outer syntax for 'record';
wenzelm
parents: 6092
diff changeset
  1059
  Method.add_methods [record_split_method],
7178
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
  1060
  Simplifier.change_simpset_of Simplifier.addsimprocs [record_simproc]];
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
  1061
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
  1062
6358
92dbe243555f outer syntax for 'record';
wenzelm
parents: 6092
diff changeset
  1063
(* outer syntax *)
92dbe243555f outer syntax for 'record';
wenzelm
parents: 6092
diff changeset
  1064
6723
f342449d73ca outer syntax keyword classification;
wenzelm
parents: 6556
diff changeset
  1065
local structure P = OuterParse and K = OuterSyntax.Keyword in
6358
92dbe243555f outer syntax for 'record';
wenzelm
parents: 6092
diff changeset
  1066
92dbe243555f outer syntax for 'record';
wenzelm
parents: 6092
diff changeset
  1067
val record_decl =
6723
f342449d73ca outer syntax keyword classification;
wenzelm
parents: 6556
diff changeset
  1068
  P.type_args -- P.name -- (P.$$$ "=" |-- Scan.option (P.typ --| P.$$$ "+")
6729
b6e167580a32 formal comments (still dummy);
wenzelm
parents: 6723
diff changeset
  1069
    -- Scan.repeat1 (P.name -- (P.$$$ "::" |-- P.typ) --| P.marg_comment));
6358
92dbe243555f outer syntax for 'record';
wenzelm
parents: 6092
diff changeset
  1070
92dbe243555f outer syntax for 'record';
wenzelm
parents: 6092
diff changeset
  1071
val recordP =
6723
f342449d73ca outer syntax keyword classification;
wenzelm
parents: 6556
diff changeset
  1072
  OuterSyntax.command "record" "define extensible record" K.thy_decl
6519
5bd1c469e742 iff_add_global (from simpdata.ML);
wenzelm
parents: 6394
diff changeset
  1073
    (record_decl >> (fn (x, (y, z)) => Toplevel.theory (#1 o add_record x y z)));
6358
92dbe243555f outer syntax for 'record';
wenzelm
parents: 6092
diff changeset
  1074
92dbe243555f outer syntax for 'record';
wenzelm
parents: 6092
diff changeset
  1075
val _ = OuterSyntax.add_parsers [recordP];
92dbe243555f outer syntax for 'record';
wenzelm
parents: 6092
diff changeset
  1076
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
  1077
end;
5698
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
  1078
6384
eed1273c9146 local open OuterParse;
wenzelm
parents: 6358
diff changeset
  1079
end;
eed1273c9146 local open OuterParse;
wenzelm
parents: 6358
diff changeset
  1080
5698
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
  1081
structure BasicRecordPackage: BASIC_RECORD_PACKAGE = RecordPackage;
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
  1082
open BasicRecordPackage;