src/HOL/Tools/record_package.ML
author schirmer
Thu, 06 Nov 2003 20:45:02 +0100
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child 14358 233c5bd5b539
permissions -rw-r--r--
Records: - Record types are now by default printed with their type abbreviation instead of the list of all field types. This can be configured via the reference "print_record_type_abbr". - Simproc "record_upd_simproc" for simplification of multiple updates added (not enabled by default). - Tactic "record_split_simp_tac" to split and simplify records added. - Bug-fix and optimisation of "record_simproc". - "record_simproc" and "record_upd_simproc" are now sensitive to quick_and_dirty flag.
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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_eq_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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  val print_record_type_abbr: bool ref 
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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 dest_fieldTs: typ -> (string * typ) list
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  val last_fieldT: typ -> (string * typ) option
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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 * mixfix) 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 * mixfix) list -> theory -> theory * {simps: thm list, iffs: thm list}
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  val setup: (theory -> theory) list
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  val record_upd_simproc: simproc
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  val record_split_simproc: (term -> bool) -> simproc
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  val record_split_simp_tac: (term -> bool) -> int -> tactic
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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_type_intro = thm "product_type.intro";
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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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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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(* 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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(* attributes *)
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fun case_names_fields x = RuleCases.case_names ["fields"] x;
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fun induct_type_global name = [case_names_fields, InductAttrib.induct_type_global name];
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fun cases_type_global name = [case_names_fields, InductAttrib.cases_type_global name];
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(* tactics *)
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fun simp_all_tac ss simps = ALLGOALS (Simplifier.asm_full_simp_tac (ss addsimps simps));
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(* do case analysis / induction on last parameter of ith subgoal (or s) *)
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fun try_param_tac s rule i st =
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  let
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    val cert = cterm_of (#sign (rep_thm st));
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    val g = nth_elem (i - 1, prems_of st);
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    val params = Logic.strip_params g;
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    val concl = HOLogic.dest_Trueprop (Logic.strip_assums_concl g);
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    val rule' = Thm.lift_rule (st, i) rule;
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    val (P, ys) = strip_comb (HOLogic.dest_Trueprop
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      (Logic.strip_assums_concl (prop_of rule')));
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    val (x, ca) = (case rev (drop (length params, ys)) of
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        [] => (head_of (fst (HOLogic.dest_eq (HOLogic.dest_Trueprop
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          (hd (rev (Logic.strip_assums_hyp (hd (prems_of rule')))))))), true)
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      | [x] => (head_of x, false));
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    val rule'' = cterm_instantiate (map (pairself cert) (case (rev params) of
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        [] => (case assoc (map dest_Free (term_frees (prop_of st)), s) of
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          None => sys_error "try_param_tac: no such variable"
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        | Some T => [(P, if ca then concl else lambda (Free (s, T)) concl),
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            (x, Free (s, T))])
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      | (_, T) :: _ => [(P, list_abs (params, if ca then concl
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          else incr_boundvars 1 (Abs (s, T, concl)))),
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        (x, list_abs (params, Bound 0))])) rule'
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  in compose_tac (false, rule'', nprems_of rule) i st end;
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(*** code generator data ***)
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val [prod_code, fst_code, snd_code] =
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  map (Codegen.parse_mixfix (K (Bound 0))) ["(_,/ _)", "fst", "snd"];
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val prodT_code = Codegen.parse_mixfix (K dummyT) "(_ */ _)";
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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 fieldsN = "fields";
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val extendN = "extend";
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val truncateN = "truncate";
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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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fun dest_fieldTs T =
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  let val ((c, T), U) = dest_fieldT T
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  in (c, T) :: dest_fieldTs U
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  end handle TYPE _ => [];
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fun last_fieldT T =
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  let val ((c, T), U) = dest_fieldT T
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  in (case last_fieldT U of
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        None => Some (c,T)
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      | Some l => Some l)
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  end handle TYPE _ => None
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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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val print_record_type_abbr = ref true;
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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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(* record_type_abbr_tr' tries to reconstruct the record name type abbreviation from *)
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(* the (nested) field types.                                                        *)
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fun record_type_abbr_tr' sg abbr alphas zeta lastF recT rec_schemeT tm =
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  let
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      (* tm is term representation of a (nested) field type. We first reconstruct the      *)
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      (* type from tm so that we can continue on the type level rather then the term level.*)
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      fun get_sort xs n = (case assoc (xs,n) of 
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                             Some s => s 
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                           | None => Sign.defaultS sg);
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      val T = Sign.intern_typ sg (Syntax.typ_of_term (get_sort (Syntax.raw_term_sorts tm)) I tm) 
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      val {tsig,...} = Sign.rep_sg sg
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      fun mk_type_abbr subst name alphas = 
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          let val abbrT = Type (name, map (fn a => TVar ((a,0),logicS)) alphas);
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          in Syntax.term_of_typ (! Syntax.show_sorts) (Envir.norm_type subst abbrT) end;    
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      fun unify rT T = fst (Type.unify tsig (Vartab.empty,0) (Type.varifyT rT,T))
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   in if !print_record_type_abbr
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      then (case last_fieldT T of
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             Some (name,_) 
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              => if name = lastF 
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                 then
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		   let val subst = unify rec_schemeT T 
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                   in 
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                    if HOLogic.is_unitT (Envir.norm_type subst (TVar((zeta,0),Sign.defaultS sg)))
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                    then mk_type_abbr subst abbr alphas
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                    else mk_type_abbr subst (suffix schemeN abbr) (alphas@[zeta])
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		   end handle TUNIFY => record_type_tr' tm
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                 else raise Match (* give print translation of specialised record a chance *)
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            | _ => record_type_tr' tm)
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       else record_type_tr' tm
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   387
  end
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fun gen_record_type_abbr_tr' sg abbr alphas zeta lastF recT rec_schemeT name =
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  let val name_sfx = suffix field_typeN name
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      val tr' = record_type_abbr_tr' sg abbr alphas zeta lastF recT rec_schemeT 
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  in (name_sfx, fn [t,u] => tr' (Syntax.const name_sfx $ t $ u) | _ => raise Match) end;
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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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69c77ed95ba3 added more_update;
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   399
fun record_update_tr' tm =
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   400
  let val (ts, u) = gen_fields_tr' "_update" updateN tm in
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   401
    Syntax.const "_record_update" $ u $
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   402
      foldr1 (fn (v, w) => Syntax.const "_updates" $ v $ w) (rev ts)
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   403
  end;
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   404
5201
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   405
fun gen_field_tr' sfx tr' name =
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   406
  let val name_sfx = suffix sfx name
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   407
  in (name_sfx, fn [t, u] => tr' (Syntax.const name_sfx $ t $ u) | _ => raise Match) end;
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   408
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   409
fun print_translation names =
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   410
  map (gen_field_tr' fieldN record_tr') names @
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   411
  map (gen_field_tr' updateN record_update_tr') names;
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   413
fun print_translation_field_types names =
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   414
  map (gen_field_tr' field_typeN record_type_tr') names
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   417
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
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   418
(*** extend theory by record definition ***)
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   419
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   420
(** record info **)
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   422
(* type record_info and parent_info  *)
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9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
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   424
type record_info =
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   425
 {args: (string * sort) list,
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   426
  parent: (typ list * string) option,
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wenzelm
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diff changeset
   427
  fields: (string * typ) list,
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  field_inducts: thm list,
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   429
  field_cases: thm list,
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   430
  field_splits: thm list,
12247
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diff changeset
   431
  simps: thm list};
11927
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diff changeset
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diff changeset
   433
fun make_record_info args parent fields field_inducts field_cases field_splits simps =
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9b029789aff6 derive cases/induct rules for ``more'' parts;
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diff changeset
   434
 {args = args, parent = parent, fields = fields, field_inducts = field_inducts,
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diff changeset
   435
  field_cases = field_cases, field_splits = field_splits, simps = simps}: record_info;
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
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diff changeset
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9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
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diff changeset
   437
type parent_info =
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
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diff changeset
   438
 {name: string,
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   439
  fields: (string * typ) list,
12247
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
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diff changeset
   440
  field_inducts: thm list,
9b029789aff6 derive cases/induct rules for ``more'' parts;
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diff changeset
   441
  field_cases: thm list,
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   442
  field_splits: thm list,
12247
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
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diff changeset
   443
  simps: thm list};
11927
96f267adc029 provodes induct/cases for use with corresponding Isar methods;
wenzelm
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diff changeset
   444
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   445
fun make_parent_info name fields field_inducts field_cases field_splits simps =
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9b029789aff6 derive cases/induct rules for ``more'' parts;
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   446
 {name = name, fields = fields, field_inducts = field_inducts,
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   447
  field_cases = field_cases, field_splits = field_splits, simps = simps}: parent_info;
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9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
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diff changeset
   449
5052
bbe3584b515b fixed comment;
wenzelm
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diff changeset
   450
(* data kind 'HOL/records' *)
5001
9de7fda0a6df accomodate tuned version of theory data;
wenzelm
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diff changeset
   451
7178
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
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diff changeset
   452
type record_data =
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
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diff changeset
   453
 {records: record_info Symtab.table,
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   454
  sel_upd:
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
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diff changeset
   455
   {selectors: unit Symtab.table,
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
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diff changeset
   456
    updates: string Symtab.table,
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
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diff changeset
   457
    simpset: Simplifier.simpset},
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
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diff changeset
   458
  field_splits:
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
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diff changeset
   459
   {fields: unit Symtab.table,
14079
1c22e5499eeb - record_split_tac now also works for object-level universal quantifier
berghofe
parents: 13904
diff changeset
   460
    simpset: Simplifier.simpset},
14255
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diff changeset
   461
  equalities: thm Symtab.table,
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diff changeset
   462
  splits: (thm*thm*thm*thm) Symtab.table (* !!,!,EX - split-equalities,induct rule *) 
e6e3e3f0deed Records:
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diff changeset
   463
};
7178
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   464
14255
e6e3e3f0deed Records:
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diff changeset
   465
fun make_record_data records sel_upd field_splits equalities splits =
14079
1c22e5499eeb - record_split_tac now also works for object-level universal quantifier
berghofe
parents: 13904
diff changeset
   466
 {records = records, sel_upd = sel_upd, field_splits = field_splits,
14255
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   467
  equalities = equalities, splits = splits}: record_data;
7178
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   468
5006
cdc86a914e63 adapted to new theory data interface;
wenzelm
parents: 5001
diff changeset
   469
structure RecordsArgs =
cdc86a914e63 adapted to new theory data interface;
wenzelm
parents: 5001
diff changeset
   470
struct
cdc86a914e63 adapted to new theory data interface;
wenzelm
parents: 5001
diff changeset
   471
  val name = "HOL/records";
7178
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
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diff changeset
   472
  type T = record_data;
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   473
7178
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   474
  val empty =
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   475
    make_record_data Symtab.empty
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   476
      {selectors = Symtab.empty, updates = Symtab.empty, simpset = HOL_basic_ss}
14255
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   477
      {fields = Symtab.empty, simpset = HOL_basic_ss} Symtab.empty Symtab.empty;
7178
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   478
6556
daa00919502b theory data: copy;
wenzelm
parents: 6519
diff changeset
   479
  val copy = I;
5006
cdc86a914e63 adapted to new theory data interface;
wenzelm
parents: 5001
diff changeset
   480
  val prep_ext = I;
7178
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   481
  fun merge
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   482
   ({records = recs1,
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   483
     sel_upd = {selectors = sels1, updates = upds1, simpset = ss1},
14079
1c22e5499eeb - record_split_tac now also works for object-level universal quantifier
berghofe
parents: 13904
diff changeset
   484
     field_splits = {fields = flds1, simpset = fld_ss1},
14255
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   485
     equalities = equalities1,
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   486
     splits = splits1},
7178
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   487
    {records = recs2,
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   488
     sel_upd = {selectors = sels2, updates = upds2, simpset = ss2},
14079
1c22e5499eeb - record_split_tac now also works for object-level universal quantifier
berghofe
parents: 13904
diff changeset
   489
     field_splits = {fields = flds2, simpset = fld_ss2},
14255
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   490
     equalities = equalities2, 
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   491
     splits = splits2}) =
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   492
    make_record_data  
7178
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   493
      (Symtab.merge (K true) (recs1, recs2))
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   494
      {selectors = Symtab.merge (K true) (sels1, sels2),
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   495
        updates = Symtab.merge (K true) (upds1, upds2),
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   496
        simpset = Simplifier.merge_ss (ss1, ss2)}
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   497
      {fields = Symtab.merge (K true) (flds1, flds2),
14079
1c22e5499eeb - record_split_tac now also works for object-level universal quantifier
berghofe
parents: 13904
diff changeset
   498
        simpset = Simplifier.merge_ss (fld_ss1, fld_ss2)}
14255
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   499
      (Symtab.merge Thm.eq_thm (equalities1, equalities2))
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   500
      (Symtab.merge (fn ((a,b,c,d),(w,x,y,z)) 
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   501
                     => Thm.eq_thm (a,w) andalso Thm.eq_thm (b,x) andalso 
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   502
                        Thm.eq_thm (c,y) andalso Thm.eq_thm (d,z)) 
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   503
                    (splits1, splits2));
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   504
7178
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   505
  fun print sg ({records = recs, ...}: record_data) =
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   506
    let
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   507
      val prt_typ = Sign.pretty_typ sg;
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   508
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   509
      fun pretty_parent None = []
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   510
        | pretty_parent (Some (Ts, name)) =
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   511
            [Pretty.block [prt_typ (Type (name, Ts)), Pretty.str " +"]];
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   512
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   513
      fun pretty_field (c, T) = Pretty.block
12129
964f5ffe13d0 fixed print_records;
wenzelm
parents: 12109
diff changeset
   514
        [Pretty.str (Sign.cond_extern sg Sign.constK c), Pretty.str " ::",
964f5ffe13d0 fixed print_records;
wenzelm
parents: 12109
diff changeset
   515
          Pretty.brk 1, Pretty.quote (prt_typ T)];
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   516
12247
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   517
      fun pretty_record (name, {args, parent, fields, ...}: record_info) =
11927
96f267adc029 provodes induct/cases for use with corresponding Isar methods;
wenzelm
parents: 11923
diff changeset
   518
        Pretty.block (Pretty.fbreaks (Pretty.block
96f267adc029 provodes induct/cases for use with corresponding Isar methods;
wenzelm
parents: 11923
diff changeset
   519
          [prt_typ (Type (name, map TFree args)), Pretty.str " = "] ::
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   520
          pretty_parent parent @ map pretty_field fields));
12129
964f5ffe13d0 fixed print_records;
wenzelm
parents: 12109
diff changeset
   521
    in map pretty_record (Symtab.dest recs) |> Pretty.chunks |> Pretty.writeln end;
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   522
end;
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   523
5006
cdc86a914e63 adapted to new theory data interface;
wenzelm
parents: 5001
diff changeset
   524
structure RecordsData = TheoryDataFun(RecordsArgs);
cdc86a914e63 adapted to new theory data interface;
wenzelm
parents: 5001
diff changeset
   525
val print_records = RecordsData.print;
cdc86a914e63 adapted to new theory data interface;
wenzelm
parents: 5001
diff changeset
   526
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   527
7178
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   528
(* access 'records' *)
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   529
7178
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   530
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
   531
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   532
fun put_record name info thy =
7178
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   533
  let
14255
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   534
    val {records, sel_upd, field_splits, equalities, splits} = RecordsData.get thy;
14079
1c22e5499eeb - record_split_tac now also works for object-level universal quantifier
berghofe
parents: 13904
diff changeset
   535
    val data = make_record_data (Symtab.update ((name, info), records))
14255
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   536
      sel_upd field_splits equalities splits;
7178
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   537
  in RecordsData.put data thy end;
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   538
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   539
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   540
(* access 'sel_upd' *)
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   541
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   542
fun get_sel_upd sg = #sel_upd (RecordsData.get_sg sg);
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   543
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   544
fun get_selectors sg name = Symtab.lookup (#selectors (get_sel_upd sg), name);
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   545
fun get_updates sg name = Symtab.lookup (#updates (get_sel_upd sg), name);
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   546
fun get_simpset sg = #simpset (get_sel_upd sg);
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   547
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   548
fun put_sel_upd names simps thy =
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   549
  let
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   550
    val sels = map (rpair ()) names;
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   551
    val upds = map (suffix updateN) names ~~ names;
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   552
14079
1c22e5499eeb - record_split_tac now also works for object-level universal quantifier
berghofe
parents: 13904
diff changeset
   553
    val {records, sel_upd = {selectors, updates, simpset}, field_splits,
14255
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   554
      equalities, splits} = RecordsData.get thy;
7178
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   555
    val data = make_record_data records
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   556
      {selectors = Symtab.extend (selectors, sels),
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   557
        updates = Symtab.extend (updates, upds),
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   558
        simpset = Simplifier.addsimps (simpset, simps)}
14255
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   559
      field_splits equalities splits;
7178
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   560
  in RecordsData.put data thy end;
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   561
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   562
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   563
(* access 'field_splits' *)
5698
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   564
14255
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   565
fun add_field_splits names simps thy =
5698
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   566
  let
14079
1c22e5499eeb - record_split_tac now also works for object-level universal quantifier
berghofe
parents: 13904
diff changeset
   567
    val {records, sel_upd, field_splits = {fields, simpset},
14255
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   568
      equalities, splits} = RecordsData.get thy;
14079
1c22e5499eeb - record_split_tac now also works for object-level universal quantifier
berghofe
parents: 13904
diff changeset
   569
    val flds = map (rpair ()) names;
7178
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   570
    val data = make_record_data records sel_upd
14079
1c22e5499eeb - record_split_tac now also works for object-level universal quantifier
berghofe
parents: 13904
diff changeset
   571
      {fields = Symtab.extend (fields, flds),
14255
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   572
       simpset = Simplifier.addsimps (simpset, simps)} equalities splits;
7178
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   573
  in RecordsData.put data thy end;
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   574
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   575
14079
1c22e5499eeb - record_split_tac now also works for object-level universal quantifier
berghofe
parents: 13904
diff changeset
   576
(* access 'equalities' *)
1c22e5499eeb - record_split_tac now also works for object-level universal quantifier
berghofe
parents: 13904
diff changeset
   577
1c22e5499eeb - record_split_tac now also works for object-level universal quantifier
berghofe
parents: 13904
diff changeset
   578
fun add_record_equalities name thm thy =
1c22e5499eeb - record_split_tac now also works for object-level universal quantifier
berghofe
parents: 13904
diff changeset
   579
  let
14255
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   580
    val {records, sel_upd, field_splits, equalities, splits} = RecordsData.get thy;
14079
1c22e5499eeb - record_split_tac now also works for object-level universal quantifier
berghofe
parents: 13904
diff changeset
   581
    val data = make_record_data records sel_upd field_splits
14255
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   582
      (Symtab.update_new ((name, thm), equalities)) splits;
14079
1c22e5499eeb - record_split_tac now also works for object-level universal quantifier
berghofe
parents: 13904
diff changeset
   583
  in RecordsData.put data thy end;
1c22e5499eeb - record_split_tac now also works for object-level universal quantifier
berghofe
parents: 13904
diff changeset
   584
1c22e5499eeb - record_split_tac now also works for object-level universal quantifier
berghofe
parents: 13904
diff changeset
   585
fun get_equalities sg name =
1c22e5499eeb - record_split_tac now also works for object-level universal quantifier
berghofe
parents: 13904
diff changeset
   586
  Symtab.lookup (#equalities (RecordsData.get_sg sg), name);
1c22e5499eeb - record_split_tac now also works for object-level universal quantifier
berghofe
parents: 13904
diff changeset
   587
14255
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   588
(* access 'splits' *)
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   589
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   590
fun add_record_splits name thmP thy =
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   591
  let
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   592
    val {records, sel_upd, field_splits, equalities, splits} = RecordsData.get thy;
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   593
    val data = make_record_data records sel_upd field_splits
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   594
      equalities (Symtab.update_new ((name, thmP), splits));
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   595
  in RecordsData.put data thy end;
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   596
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   597
fun get_splits sg name =
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   598
  Symtab.lookup (#splits (RecordsData.get_sg sg), name);
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   599
14079
1c22e5499eeb - record_split_tac now also works for object-level universal quantifier
berghofe
parents: 13904
diff changeset
   600
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   601
(* parent records *)
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   602
12247
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   603
fun add_parents thy None parents = parents
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   604
  | add_parents thy (Some (types, name)) parents =
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   605
      let
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   606
        val sign = Theory.sign_of thy;
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   607
        fun err msg = error (msg ^ " parent record " ^ quote name);
12255
wenzelm
parents: 12247
diff changeset
   608
14255
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   609
        val {args, parent, fields, field_inducts, field_cases, field_splits, simps} =
12247
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   610
          (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
   611
        val _ = if length types <> length args then err "Bad number of arguments for" else ();
12255
wenzelm
parents: 12247
diff changeset
   612
12247
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   613
        fun bad_inst ((x, S), T) =
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   614
          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
   615
        val bads = mapfilter bad_inst (args ~~ types);
12255
wenzelm
parents: 12247
diff changeset
   616
12247
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   617
        val inst = map fst args ~~ types;
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   618
        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
   619
        val parent' = apsome (apfst (map subst)) parent;
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   620
        val fields' = map (apsnd subst) fields;
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   621
      in
12255
wenzelm
parents: 12247
diff changeset
   622
        conditional (not (null bads)) (fn () =>
wenzelm
parents: 12247
diff changeset
   623
          err ("Ill-sorted instantiation of " ^ commas bads ^ " in"));
wenzelm
parents: 12247
diff changeset
   624
        add_parents thy parent'
14255
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   625
          (make_parent_info name fields' field_inducts field_cases field_splits simps::parents)
12247
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   626
      end;
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   627
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   628
14255
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   629
(** record simprocs **)
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   630
 
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   631
fun quick_and_dirty_prove sg xs asms prop tac =
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   632
Tactic.prove sg xs asms prop
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   633
    (if ! quick_and_dirty then (K (SkipProof.cheat_tac HOL.thy)) else tac);
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   634
14255
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   635
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   636
fun prove_split_simp sg T prop =
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   637
    (case last_fieldT T of
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   638
      Some (name,_) => (case get_splits sg name of
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   639
                         Some (all_thm,_,_,_) 
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   640
                          => let val {sel_upd={simpset,...},...} = RecordsData.get_sg sg;
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   641
                             in (quick_and_dirty_prove sg [] [] prop 
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   642
                                  (K (simp_tac (simpset addsimps [all_thm]) 1)))
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   643
                             end
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   644
                      | _ => error "RecordPackage.prove_split_simp: code should never been reached")
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   645
     | _ => error "RecordPackage.prove_split_simp: code should never been reached")
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   646
7178
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   647
14255
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   648
(* record_simproc *)
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   649
(* Simplifies selections of an record update:
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   650
 *  (1)  S (r(|S:=k|)) = k respectively
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   651
 *  (2)  S (r(|X:=k|)) = S r
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   652
 * The simproc skips multiple updates at once, eg:
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   653
 *  S (r (|S:=k,X:=2,Y:=3|)) = k
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   654
 * But be careful in (2) because of the extendibility of records.
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   655
 * - If S is a more-selector we have to make sure that the update on component
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   656
 *   X does not affect the selected subrecord.
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   657
 * - If X is a more-selector we have to make sure that S is not in the updated
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   658
 *   subrecord. 
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   659
 *)
13462
56610e2ba220 sane interface for simprocs;
wenzelm
parents: 13419
diff changeset
   660
val record_simproc =
56610e2ba220 sane interface for simprocs;
wenzelm
parents: 13419
diff changeset
   661
  Simplifier.simproc (Theory.sign_of HOL.thy) "record_simp" ["s (u k r)"]
56610e2ba220 sane interface for simprocs;
wenzelm
parents: 13419
diff changeset
   662
    (fn sg => fn _ => fn t =>
14255
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   663
      (case t of (sel as Const (s, Type (_,[domS,rangeS]))) $ ((upd as Const (u, _)) $ k $ r) =>
13462
56610e2ba220 sane interface for simprocs;
wenzelm
parents: 13419
diff changeset
   664
        (case get_selectors sg s of Some () =>
56610e2ba220 sane interface for simprocs;
wenzelm
parents: 13419
diff changeset
   665
          (case get_updates sg u of Some u_name =>
56610e2ba220 sane interface for simprocs;
wenzelm
parents: 13419
diff changeset
   666
            let
14255
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   667
              fun mk_abs_var x t = (x, fastype_of t);
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   668
              val {sel_upd={updates,...},...} = RecordsData.get_sg sg;
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   669
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   670
              fun mk_eq_terms ((upd as Const (u,Type(_,[updT,_]))) $ k $ r) =
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   671
		  (case (Symtab.lookup (updates,u)) of
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   672
                     None => None
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   673
                   | Some u_name 
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   674
                     => if u_name = s
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   675
                        then let 
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   676
                               val rv = mk_abs_var "r" r
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   677
                               val rb = Bound 0
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   678
                               val kv = mk_abs_var "k" k
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   679
                               val kb = Bound 1 
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   680
                             in Some (upd$kb$rb,kb,[kv,rv],true) end
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   681
                        else if u_name mem (map fst (dest_fieldTs rangeS))
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   682
                             orelse s mem (map fst (dest_fieldTs updT))
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   683
                             then None
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   684
			     else (case mk_eq_terms r of 
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   685
                                     Some (trm,trm',vars,update_s) 
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   686
                                     => let   
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   687
					  val kv = mk_abs_var "k" k
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   688
                                          val kb = Bound (length vars)
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   689
		                        in Some (upd$kb$trm,trm',kv::vars,update_s) end
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   690
                                   | None
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   691
                                     => let 
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   692
					  val rv = mk_abs_var "r" r
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   693
                                          val rb = Bound 0
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   694
                                          val kv = mk_abs_var "k" k
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   695
                                          val kb = Bound 1 
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   696
                                        in Some (upd$kb$rb,rb,[kv,rv],false) end))
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   697
                | mk_eq_terms r = None     
13462
56610e2ba220 sane interface for simprocs;
wenzelm
parents: 13419
diff changeset
   698
            in
14255
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   699
	      (case mk_eq_terms (upd$k$r) of
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   700
                 Some (trm,trm',vars,update_s) 
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   701
                 => if update_s 
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   702
		    then Some (prove_split_simp sg domS 
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   703
                                 (list_all(vars,(Logic.mk_equals (sel$trm,trm')))))
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   704
                    else Some (prove_split_simp sg domS 
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   705
                                 (list_all(vars,(Logic.mk_equals (sel$trm,sel$trm')))))
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   706
               | None => None)
13462
56610e2ba220 sane interface for simprocs;
wenzelm
parents: 13419
diff changeset
   707
            end
56610e2ba220 sane interface for simprocs;
wenzelm
parents: 13419
diff changeset
   708
          | None => None)
56610e2ba220 sane interface for simprocs;
wenzelm
parents: 13419
diff changeset
   709
        | None => None)
56610e2ba220 sane interface for simprocs;
wenzelm
parents: 13419
diff changeset
   710
      | _ => None));
7178
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   711
14255
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   712
(* record_eq_simproc *)
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   713
(* looks up the most specific record-equality.
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   714
 * Note on efficiency:
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   715
 * Testing equality of records boils down to the test of equality of all components.
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   716
 * Therefore the complexity is: #components * complexity for single component.
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   717
 * Especially if a record has a lot of components it may be better to split up
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   718
 * the record first and do simplification on that (record_split_simp_tac).
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   719
 * e.g. r(|lots of updates|) = x
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   720
 *
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   721
 *               record_eq_simproc           record_split_simp_tac
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   722
 * Complexity: #components * #updates     #updates   
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   723
 *           
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   724
 *)
14079
1c22e5499eeb - record_split_tac now also works for object-level universal quantifier
berghofe
parents: 13904
diff changeset
   725
val record_eq_simproc =
1c22e5499eeb - record_split_tac now also works for object-level universal quantifier
berghofe
parents: 13904
diff changeset
   726
  Simplifier.simproc (Theory.sign_of HOL.thy) "record_eq_simp" ["r = s"]
1c22e5499eeb - record_split_tac now also works for object-level universal quantifier
berghofe
parents: 13904
diff changeset
   727
    (fn sg => fn _ => fn t =>
1c22e5499eeb - record_split_tac now also works for object-level universal quantifier
berghofe
parents: 13904
diff changeset
   728
      (case t of Const ("op =", Type (_, [T, _])) $ _ $ _ =>
14255
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   729
        (case last_fieldT T of
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   730
           None => None
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   731
         | Some (name, _) => (case get_equalities sg name of
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   732
                                None => None
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   733
                              | Some thm => Some (thm RS Eq_TrueI)))
14079
1c22e5499eeb - record_split_tac now also works for object-level universal quantifier
berghofe
parents: 13904
diff changeset
   734
       | _ => None));
1c22e5499eeb - record_split_tac now also works for object-level universal quantifier
berghofe
parents: 13904
diff changeset
   735
7178
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   736
14255
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   737
(* record_upd_simproc *)
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   738
(* simplify multiple updates; for example: "r(|M:=3,N:=1,M:=2,N:=4|) == r(|M:=2,N:=4|)" *)
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   739
val record_upd_simproc =
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   740
  Simplifier.simproc (Theory.sign_of HOL.thy) "record_upd_simp" ["(u1 k1 (u2 k2 r))"]
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   741
    (fn sg => fn _ => fn t =>
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   742
      (case t of ((upd as Const (u, Type(_,[_,Type(_,[T,_])]))) $ k $ r) =>
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   743
 	 let val {sel_upd={updates,...},...} = RecordsData.get_sg sg;
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   744
	     fun mk_abs_var x t = (x, fastype_of t);
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   745
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   746
             fun mk_updterm upds already ((upd as Const (u,_)) $ k $ r) =
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   747
		 if is_some (Symtab.lookup (upds,u))
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   748
		 then let 
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   749
			 fun rest already = mk_updterm upds already
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   750
		      in if is_some (Symtab.lookup (already,u)) 
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   751
			 then (case (rest already r) of
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   752
				 None => let 
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   753
				           val rv = mk_abs_var "r" r
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   754
                                           val rb = Bound 0
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   755
					   val kv = mk_abs_var "k" k
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   756
                                           val kb = Bound 1	      
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   757
                                         in Some (upd$kb$rb,rb,[kv,rv]) end
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   758
                               | Some (trm,trm',vars) 
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   759
				 => let 
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   760
				     val kv = mk_abs_var "k" k
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   761
                                     val kb = Bound (length vars)
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   762
                                    in Some (upd$kb$trm,trm',kv::vars) end)
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   763
	                 else (case rest (Symtab.update ((u,()),already)) r of 
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   764
				 None => None
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   765
		               | Some (trm,trm',vars) 
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   766
                                  => let
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   767
				      val kv = mk_abs_var "k" k
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   768
                                      val kb = Bound (length vars)
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   769
                                     in Some (upd$kb$trm,upd$kb$trm',kv::vars) end)
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   770
		     end
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   771
		 else None
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   772
	       | mk_updterm _ _ _ = None;
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   773
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   774
	 in (case mk_updterm updates Symtab.empty t of
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   775
	       Some (trm,trm',vars)
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   776
                => Some (prove_split_simp sg T (list_all(vars,(Logic.mk_equals (trm,trm')))))
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   777
             | None => None)
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   778
	 end
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   779
       | _ => None));
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   780
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   781
(* record_split_simproc *)
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   782
(* splits quantified occurrences of records, for which P holds. P can peek on the 
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   783
 * subterm starting at the quantified occurrence of the record (including the quantifier)
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   784
 *)
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   785
fun record_split_simproc P =
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   786
  Simplifier.simproc (Theory.sign_of HOL.thy) "record_split_simp" ["(a t)"]
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   787
    (fn sg => fn _ => fn t =>
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   788
      (case t of (Const (quantifier, Type (_, [Type (_, [T, _]), _])))$trm =>
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   789
         if quantifier = "All" orelse quantifier = "all" orelse quantifier = "Ex"
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   790
         then (case last_fieldT T of
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   791
                 None => None
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   792
               | Some (name, _)
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   793
                  => if P t 
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   794
                     then (case get_splits sg name of
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   795
                             None => None
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   796
                           | Some (all_thm, All_thm, Ex_thm,_) 
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   797
                              => Some (case quantifier of
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   798
                                         "all" => all_thm
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   799
                                       | "All" => All_thm RS HOL.eq_reflection
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   800
                                       | "Ex"  => Ex_thm RS HOL.eq_reflection
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   801
                                       | _     => error "record_split_simproc"))
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   802
                     else None)
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   803
         else None
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   804
       | _ => None))
7178
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   805
5698
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   806
(** record field splitting **)
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   807
6358
92dbe243555f outer syntax for 'record';
wenzelm
parents: 6092
diff changeset
   808
(* tactic *)
92dbe243555f outer syntax for 'record';
wenzelm
parents: 6092
diff changeset
   809
14255
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   810
fun is_fieldT fields (Type (a, [_, _])) = is_some (Symtab.lookup (fields, a))
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   811
  | is_fieldT _ _ = false;
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   812
5698
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   813
fun record_split_tac i st =
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   814
  let
7178
50b9849cf6ad record_simproc for sel-upd (by Sebastian Nanz);
wenzelm
parents: 6851
diff changeset
   815
    val {field_splits = {fields, simpset}, ...} = RecordsData.get_sg (Thm.sign_of_thm st);
5698
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   816
14079
1c22e5499eeb - record_split_tac now also works for object-level universal quantifier
berghofe
parents: 13904
diff changeset
   817
    val has_field = exists_Const
1c22e5499eeb - record_split_tac now also works for object-level universal quantifier
berghofe
parents: 13904
diff changeset
   818
      (fn (s, Type (_, [Type (_, [T, _]), _])) =>
14255
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   819
          (s = "all" orelse s = "All") andalso is_fieldT fields T
14079
1c22e5499eeb - record_split_tac now also works for object-level universal quantifier
berghofe
parents: 13904
diff changeset
   820
        | _ => false);
1c22e5499eeb - record_split_tac now also works for object-level universal quantifier
berghofe
parents: 13904
diff changeset
   821
1c22e5499eeb - record_split_tac now also works for object-level universal quantifier
berghofe
parents: 13904
diff changeset
   822
    val goal = Library.nth_elem (i - 1, Thm.prems_of st);
5698
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   823
  in
14079
1c22e5499eeb - record_split_tac now also works for object-level universal quantifier
berghofe
parents: 13904
diff changeset
   824
    if has_field goal then Simplifier.full_simp_tac simpset i st
5698
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   825
    else Seq.empty
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   826
  end handle Library.LIST _ => Seq.empty;
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   827
6358
92dbe243555f outer syntax for 'record';
wenzelm
parents: 6092
diff changeset
   828
14255
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   829
local
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   830
val inductive_atomize = thms "induct_atomize";
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   831
val inductive_rulify1 = thms "induct_rulify1";
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   832
in
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   833
(* record_split_simp_tac *)
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   834
(* splits (and simplifies) all records in the goal for which P holds. 
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   835
 * For quantified occurrences of a record
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   836
 * P can peek on the whole subterm (including the quantifier); for free variables P
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   837
 * can only peek on the variable itself. 
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   838
 *)
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   839
fun record_split_simp_tac P i st =
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   840
  let
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   841
    val sg = Thm.sign_of_thm st;
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   842
    val {sel_upd={simpset,...},field_splits={fields,...},...} 
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   843
            = RecordsData.get_sg sg;
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   844
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   845
    val has_field = exists_Const
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   846
      (fn (s, Type (_, [Type (_, [T, _]), _])) =>
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   847
          (s = "all" orelse s = "All" orelse s = "Ex") andalso is_fieldT fields T
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   848
        | _ => false);
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   849
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   850
    val goal = Library.nth_elem (i - 1, Thm.prems_of st);
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   851
    val frees = filter (is_fieldT fields o type_of) (term_frees goal);
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   852
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   853
    fun mk_split_free_tac free induct_thm i = 
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   854
	let val cfree = cterm_of sg free;
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   855
            val (_$(_$r)) = concl_of induct_thm;
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   856
            val crec = cterm_of sg r;
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   857
            val thm  = cterm_instantiate [(crec,cfree)] induct_thm;
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   858
        in EVERY [simp_tac (HOL_basic_ss addsimps inductive_atomize) i,
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   859
                  rtac thm i,
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   860
                  simp_tac (HOL_basic_ss addsimps inductive_rulify1) i]
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   861
	end;
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   862
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   863
    fun split_free_tac P i (free as Free (n,T)) = 
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   864
	(case last_fieldT T of
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   865
           None => None
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   866
         | Some(name,_)=> if P free 
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   867
                          then (case get_splits sg name of
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   868
                                  None => None
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   869
                                | Some (_,_,_,induct_thm)
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   870
                                   => Some (mk_split_free_tac free induct_thm i))
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   871
                          else None)
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   872
     | split_free_tac _ _ _ = None;
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   873
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   874
    val split_frees_tacs = mapfilter (split_free_tac P i) frees;
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   875
   
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   876
    val simprocs = if has_field goal then [record_split_simproc P] else [];
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   877
   
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   878
  in st |> (EVERY split_frees_tacs) 
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   879
           THEN (Simplifier.full_simp_tac (simpset addsimprocs simprocs) i)
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   880
  end handle Library.LIST _ => Seq.empty;
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   881
end;
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
   882
6358
92dbe243555f outer syntax for 'record';
wenzelm
parents: 6092
diff changeset
   883
(* wrapper *)
92dbe243555f outer syntax for 'record';
wenzelm
parents: 6092
diff changeset
   884
5707
b0e631634b5a field_injects [iffs];
wenzelm
parents: 5698
diff changeset
   885
val record_split_name = "record_split_tac";
b0e631634b5a field_injects [iffs];
wenzelm
parents: 5698
diff changeset
   886
val record_split_wrapper = (record_split_name, fn tac => record_split_tac ORELSE' tac);
5698
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   887
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   888
6358
92dbe243555f outer syntax for 'record';
wenzelm
parents: 6092
diff changeset
   889
(* method *)
92dbe243555f outer syntax for 'record';
wenzelm
parents: 6092
diff changeset
   890
92dbe243555f outer syntax for 'record';
wenzelm
parents: 6092
diff changeset
   891
val record_split_method =
9705
8eecca293907 Method.SIMPLE_METHOD';
wenzelm
parents: 9626
diff changeset
   892
  ("record_split", Method.no_args (Method.SIMPLE_METHOD' HEADGOAL record_split_tac),
6358
92dbe243555f outer syntax for 'record';
wenzelm
parents: 6092
diff changeset
   893
    "split record fields");
92dbe243555f outer syntax for 'record';
wenzelm
parents: 6092
diff changeset
   894
92dbe243555f outer syntax for 'record';
wenzelm
parents: 6092
diff changeset
   895
12255
wenzelm
parents: 12247
diff changeset
   896
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   897
(** internal theory extenders **)
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   898
11832
8fca3665d1ee use abstract product type instead of datatype;
wenzelm
parents: 11739
diff changeset
   899
(* field_typedefs *)
5698
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   900
11832
8fca3665d1ee use abstract product type instead of datatype;
wenzelm
parents: 11739
diff changeset
   901
fun field_typedefs zeta moreT names theory =
5698
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   902
  let
11832
8fca3665d1ee use abstract product type instead of datatype;
wenzelm
parents: 11739
diff changeset
   903
    val alpha = "'a";
12338
de0f4a63baa5 renamed class "term" to "type" (actually "HOL.type");
wenzelm
parents: 12311
diff changeset
   904
    val aT = TFree (alpha, HOLogic.typeS);
11832
8fca3665d1ee use abstract product type instead of datatype;
wenzelm
parents: 11739
diff changeset
   905
    val UNIV = HOLogic.mk_UNIV (HOLogic.mk_prodT (aT, moreT));
5698
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   906
11832
8fca3665d1ee use abstract product type instead of datatype;
wenzelm
parents: 11739
diff changeset
   907
    fun type_def (thy, name) =
11940
80365073b8b3 removed "more" sort;
wenzelm
parents: 11934
diff changeset
   908
      let val (thy', {type_definition, set_def = Some def, ...}) =
80365073b8b3 removed "more" sort;
wenzelm
parents: 11934
diff changeset
   909
        thy |> setmp TypedefPackage.quiet_mode true
11832
8fca3665d1ee use abstract product type instead of datatype;
wenzelm
parents: 11739
diff changeset
   910
          (TypedefPackage.add_typedef_i true None
8fca3665d1ee use abstract product type instead of datatype;
wenzelm
parents: 11739
diff changeset
   911
            (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
   912
          (Tactic.rtac UNIV_witness 1))
8fca3665d1ee use abstract product type instead of datatype;
wenzelm
parents: 11739
diff changeset
   913
      in (thy', Tactic.rewrite_rule [def] type_definition) end
8fca3665d1ee use abstract product type instead of datatype;
wenzelm
parents: 11739
diff changeset
   914
  in foldl_map type_def (theory, names) end;
5698
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   915
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   916
4894
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   917
(* field_definitions *)
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   918
11832
8fca3665d1ee use abstract product type instead of datatype;
wenzelm
parents: 11739
diff changeset
   919
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
   920
  let
5698
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   921
    val sign = Theory.sign_of thy;
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   922
    val base = Sign.base_name;
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   923
12338
de0f4a63baa5 renamed class "term" to "type" (actually "HOL.type");
wenzelm
parents: 12311
diff changeset
   924
    val xT = TFree (variant alphas "'x", HOLogic.typeS);
11832
8fca3665d1ee use abstract product type instead of datatype;
wenzelm
parents: 11739
diff changeset
   925
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   926
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   927
    (* prepare declarations and definitions *)
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   928
5698
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   929
    (*field constructors*)
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   930
    val field_decls = map (mk_fieldC moreT) fields;
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   931
11832
8fca3665d1ee use abstract product type instead of datatype;
wenzelm
parents: 11739
diff changeset
   932
    fun mk_field_spec ((c, T), v) =
8fca3665d1ee use abstract product type instead of datatype;
wenzelm
parents: 11739
diff changeset
   933
      Term.head_of (mk_field ((c, v), more)) :==
8fca3665d1ee use abstract product type instead of datatype;
wenzelm
parents: 11739
diff changeset
   934
        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
   935
    val field_specs = map mk_field_spec (fields ~~ vars);
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   936
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   937
    (*field destructors*)
5698
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   938
    val dest_decls = map (mk_fstC moreT) fields @ map (mk_sndC moreT) fields;
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   939
11832
8fca3665d1ee use abstract product type instead of datatype;
wenzelm
parents: 11739
diff changeset
   940
    fun mk_dest_spec dest sel (c, T) =
5698
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   941
      let val p = Free ("p", mk_fieldT ((c, T), moreT));
11832
8fca3665d1ee use abstract product type instead of datatype;
wenzelm
parents: 11739
diff changeset
   942
      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
   943
    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
   944
    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
   945
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   946
11832
8fca3665d1ee use abstract product type instead of datatype;
wenzelm
parents: 11739
diff changeset
   947
    (* 1st stage: defs_thy *)
5713
27d4fcf5fe5f fixed field_injects;
wenzelm
parents: 5707
diff changeset
   948
11832
8fca3665d1ee use abstract product type instead of datatype;
wenzelm
parents: 11739
diff changeset
   949
    val (defs_thy, (((typedefs, field_defs), dest_defs1), dest_defs2)) =
8fca3665d1ee use abstract product type instead of datatype;
wenzelm
parents: 11739
diff changeset
   950
      thy
8fca3665d1ee use abstract product type instead of datatype;
wenzelm
parents: 11739
diff changeset
   951
      |> field_typedefs zeta moreT names
8fca3665d1ee use abstract product type instead of datatype;
wenzelm
parents: 11739
diff changeset
   952
      |>> (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
   953
      |>>> (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
   954
      |>>> (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
   955
      |>>> (PureThy.add_defs_i false o map Thm.no_attributes) dest_specs2;
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   956
13419
wenzelm
parents: 13413
diff changeset
   957
    val prod_types = map (fn (((a, b), c), d) => product_type_intro OF [a, b, c, d])
11832
8fca3665d1ee use abstract product type instead of datatype;
wenzelm
parents: 11739
diff changeset
   958
      (typedefs ~~ field_defs ~~ dest_defs1 ~~ dest_defs2);
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   959
5698
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   960
11832
8fca3665d1ee use abstract product type instead of datatype;
wenzelm
parents: 11739
diff changeset
   961
    (* 2nd stage: thms_thy *)
5698
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
   962
14079
1c22e5499eeb - record_split_tac now also works for object-level universal quantifier
berghofe
parents: 13904
diff changeset
   963
    fun make ren th = map (fn (prod_type, field) => Drule.standard
1c22e5499eeb - record_split_tac now also works for object-level universal quantifier
berghofe
parents: 13904
diff changeset
   964
      (Drule.rename_bvars (ren ~~ [base (fst field), moreN] handle LIST _ => [])
1c22e5499eeb - record_split_tac now also works for object-level universal quantifier
berghofe
parents: 13904
diff changeset
   965
        (th OF [prod_type]))) (prod_types ~~ fields);
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   966
14079
1c22e5499eeb - record_split_tac now also works for object-level universal quantifier
berghofe
parents: 13904
diff changeset
   967
    val dest_convs = make [] product_type_conv1 @ make [] product_type_conv2;
1c22e5499eeb - record_split_tac now also works for object-level universal quantifier
berghofe
parents: 13904
diff changeset
   968
    val field_injects = make [] product_type_inject;
1c22e5499eeb - record_split_tac now also works for object-level universal quantifier
berghofe
parents: 13904
diff changeset
   969
    val field_inducts = make ["x", "y"] product_type_induct;
1c22e5499eeb - record_split_tac now also works for object-level universal quantifier
berghofe
parents: 13904
diff changeset
   970
    val field_cases = make ["x", "y"] product_type_cases;
1c22e5499eeb - record_split_tac now also works for object-level universal quantifier
berghofe
parents: 13904
diff changeset
   971
    val field_splits = make ["a", "b"] product_type_split_paired_all @
1c22e5499eeb - record_split_tac now also works for object-level universal quantifier
berghofe
parents: 13904
diff changeset
   972
      make ["a", "b"] product_type_split_paired_All;
4894
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
   973
11940
80365073b8b3 removed "more" sort;
wenzelm
parents: 11934
diff changeset
   974
    val (thms_thy, [field_defs', dest_defs', dest_convs', field_injects',
80365073b8b3 removed "more" sort;
wenzelm
parents: 11934
diff changeset
   975
        field_splits', field_inducts', field_cases']) = defs_thy
12449
95fb2e206dc7 Added support for code generation.
berghofe
parents: 12374
diff changeset
   976
      |> Codegen.assoc_consts_i (flat (map (fn (s, _) =>
95fb2e206dc7 Added support for code generation.
berghofe
parents: 12374
diff changeset
   977
           [(suffix fieldN s, None, prod_code),
95fb2e206dc7 Added support for code generation.
berghofe
parents: 12374
diff changeset
   978
            (suffix fstN s, None, fst_code),
95fb2e206dc7 Added support for code generation.
berghofe
parents: 12374
diff changeset
   979
            (suffix sndN s, None, snd_code)]) fields))
95fb2e206dc7 Added support for code generation.
berghofe
parents: 12374
diff changeset
   980
      |> Codegen.assoc_types (map (fn (s, _) =>
95fb2e206dc7 Added support for code generation.
berghofe
parents: 12374
diff changeset
   981
           (suffix field_typeN s, prodT_code)) fields)
11927
96f267adc029 provodes induct/cases for use with corresponding Isar methods;
wenzelm
parents: 11923
diff changeset
   982
      |> (PureThy.add_thmss o map Thm.no_attributes)
11940
80365073b8b3 removed "more" sort;
wenzelm
parents: 11934
diff changeset
   983
       [("field_defs", field_defs),
80365073b8b3 removed "more" sort;
wenzelm
parents: 11934
diff changeset
   984
        ("dest_defs", dest_defs1 @ dest_defs2),
80365073b8b3 removed "more" sort;
wenzelm
parents: 11934
diff changeset
   985
        ("dest_convs", dest_convs),
80365073b8b3 removed "more" sort;
wenzelm
parents: 11934
diff changeset
   986
        ("field_injects", field_injects),
80365073b8b3 removed "more" sort;
wenzelm
parents: 11934
diff changeset
   987
        ("field_splits", field_splits),
80365073b8b3 removed "more" sort;
wenzelm
parents: 11934
diff changeset
   988
        ("field_inducts", field_inducts),
80365073b8b3 removed "more" sort;
wenzelm
parents: 11934
diff changeset
   989
        ("field_cases", field_cases)];
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   990
11940
80365073b8b3 removed "more" sort;
wenzelm
parents: 11934
diff changeset
   991
  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
   992
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   993
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
   994
(* record_definition *)
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   995
12506
154b14fbc1d6 mixfix syntax for selectors;
wenzelm
parents: 12449
diff changeset
   996
fun record_definition (args, bname) parent (parents: parent_info list) raw_fields thy =
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   997
  let
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
   998
    val sign = Theory.sign_of thy;
12247
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
   999
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
  1000
    val alphas = map fst args;
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
  1001
    val name = Sign.full_name sign bname;
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
  1002
    val full = Sign.full_name_path sign bname;
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
  1003
    val base = Sign.base_name;
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
  1004
12506
154b14fbc1d6 mixfix syntax for selectors;
wenzelm
parents: 12449
diff changeset
  1005
    val (bfields, field_syntax) = split_list (map (fn (x, T, mx) => ((x, T), mx)) raw_fields);
154b14fbc1d6 mixfix syntax for selectors;
wenzelm
parents: 12449
diff changeset
  1006
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
  1007
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
  1008
    (* basic components *)
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
  1009
12247
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
  1010
    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
  1011
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
  1012
    val parent_fields = flat (map #fields parents);
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
  1013
    val parent_names = map fst parent_fields;
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
  1014
    val parent_types = map snd parent_fields;
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
  1015
    val parent_len = length parent_fields;
11927
96f267adc029 provodes induct/cases for use with corresponding Isar methods;
wenzelm
parents: 11923
diff changeset
  1016
    val parent_xs = variantlist (map (base o fst) parent_fields, [moreN, rN]);
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
  1017
    val parent_vars = ListPair.map Free (parent_xs, parent_types);
4894
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
  1018
    val parent_named_vars = parent_names ~~ parent_vars;
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
  1019
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
  1020
    val fields = map (apfst full) bfields;
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
  1021
    val names = map fst fields;
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
  1022
    val types = map snd fields;
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
  1023
    val len = length fields;
11927
96f267adc029 provodes induct/cases for use with corresponding Isar methods;
wenzelm
parents: 11923
diff changeset
  1024
    val xs = variantlist (map fst bfields, moreN :: rN :: parent_xs);
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
  1025
    val vars = ListPair.map Free (xs, types);
4894
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
  1026
    val named_vars = names ~~ vars;
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
  1027
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
  1028
    val all_fields = parent_fields @ fields;
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
  1029
    val all_names = parent_names @ names;
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
  1030
    val all_types = parent_types @ types;
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
  1031
    val all_len = parent_len + len;
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
  1032
    val all_xs = parent_xs @ xs;
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
  1033
    val all_vars = parent_vars @ vars;
4894
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
  1034
    val all_named_vars = parent_named_vars @ named_vars;
4867
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
    val zeta = variant alphas "'z";
12338
de0f4a63baa5 renamed class "term" to "type" (actually "HOL.type");
wenzelm
parents: 12311
diff changeset
  1037
    val moreT = TFree (zeta, HOLogic.typeS);
4895
0fad2acb45fb misc tuning;
wenzelm
parents: 4894
diff changeset
  1038
    val more = Free (moreN, moreT);
5197
69c77ed95ba3 added more_update;
wenzelm
parents: 5060
diff changeset
  1039
    val full_moreN = full moreN;
69c77ed95ba3 added more_update;
wenzelm
parents: 5060
diff changeset
  1040
    fun more_part t = mk_more t full_moreN;
69c77ed95ba3 added more_update;
wenzelm
parents: 5060
diff changeset
  1041
    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
  1042
    val all_types_more = all_types @ [moreT];
96f267adc029 provodes induct/cases for use with corresponding Isar methods;
wenzelm
parents: 11923
diff changeset
  1043
    val all_xs_more = all_xs @ [moreN];
4894
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
  1044
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
  1045
    val parent_more = funpow parent_len mk_snd;
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
  1046
    val idxs = 0 upto (len - 1);
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
  1047
12265
6df58e87ec91 recovered original "make";
wenzelm
parents: 12255
diff changeset
  1048
    val fieldsT = mk_recordT (fields, HOLogic.unitT);
12247
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
  1049
    fun rec_schemeT n = mk_recordT (prune n all_fields, moreT);
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
  1050
    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
  1051
    fun recT n = mk_recordT (prune n all_fields, HOLogic.unitT);
12255
wenzelm
parents: 12247
diff changeset
  1052
    fun rec_ n = mk_record (prune n all_named_vars, HOLogic.unit);
12247
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
  1053
    fun r_scheme n = Free (rN, rec_schemeT n);
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
  1054
    fun r n = Free (rN, recT n);
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
  1055
14255
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
  1056
    
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
  1057
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
  1058
    (* prepare print translation functions *)
5698
2b5d9bdec5af field types: datatype;
wenzelm
parents: 5290
diff changeset
  1059
    val field_tr's =
13333
1f5745b76fb8 NameSpace.accesses';
wenzelm
parents: 12876
diff changeset
  1060
      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
  1061
14255
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
  1062
    val field_type_tr's = 
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
  1063
	let val fldnames = if parent_len = 0 then (tl names) else names;
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
  1064
        in print_translation_field_types (distinct (flat (map NameSpace.accesses' fldnames))) 
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
  1065
        end;
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
  1066
                          
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
  1067
    fun record_type_abbr_tr's thy =
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
  1068
	let val trnames = (distinct (flat (map NameSpace.accesses' [hd all_names])))
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
  1069
            val sg = Theory.sign_of thy
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
  1070
	in map (gen_record_type_abbr_tr' 
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
  1071
                 sg bname alphas zeta (hd (rev names)) (recT 0) (rec_schemeT 0)) trnames end;   
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
  1072
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
  1073
    (* prepare declarations *)
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
  1074
12247
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
  1075
    val sel_decls = map (mk_selC (rec_schemeT 0)) bfields @
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
  1076
      [mk_moreC (rec_schemeT 0) (moreN, moreT)];
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
  1077
    val update_decls = map (mk_updateC (rec_schemeT 0)) bfields @
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
  1078
      [mk_more_updateC (rec_schemeT 0) (moreN, moreT)];
12265
6df58e87ec91 recovered original "make";
wenzelm
parents: 12255
diff changeset
  1079
    val make_decl = (makeN, all_types ---> recT 0);
6df58e87ec91 recovered original "make";
wenzelm
parents: 12255
diff changeset
  1080
    val fields_decl = (fieldsN, types ---> fieldsT);
12247
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
  1081
    val extend_decl = (extendN, recT 0 --> moreT --> rec_schemeT 0);
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
  1082
    val truncate_decl = (truncateN, rec_schemeT 0 --> recT 0);
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
  1083
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
  1084
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
  1085
    (* prepare definitions *)
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
  1086
4895
0fad2acb45fb misc tuning;
wenzelm
parents: 4894
diff changeset
  1087
    (*record (scheme) type abbreviation*)
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
  1088
    val recordT_specs =
12247
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
  1089
      [(suffix schemeN bname, alphas @ [zeta], rec_schemeT 0, Syntax.NoSyn),
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
  1090
        (bname, alphas, recT 0, Syntax.NoSyn)];
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
  1091
4894
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
  1092
    (*selectors*)
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
  1093
    fun mk_sel_spec (i, c) =
12247
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
  1094
      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
  1095
    val sel_specs =
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
  1096
      ListPair.map mk_sel_spec (idxs, names) @
12247
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
  1097
        [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
  1098
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
  1099
    (*updates*)
12247
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
  1100
    val all_sels = mk_named_sels all_names (r_scheme 0);
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
  1101
    fun mk_upd_spec (i, (c, x)) =
12247
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
  1102
      mk_update (r_scheme 0) (c, x) :==
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
  1103
        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
  1104
    val update_specs =
69c77ed95ba3 added more_update;
wenzelm
parents: 5060
diff changeset
  1105
      ListPair.map mk_upd_spec (idxs, named_vars) @
12247
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
  1106
        [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
  1107
11934
6c1bf72430b6 derived operations are now: make, extend, truncate (cf. derived_defs);
wenzelm
parents: 11927
diff changeset
  1108
    (*derived operations*)
12265
6df58e87ec91 recovered original "make";
wenzelm
parents: 12255
diff changeset
  1109
    val make_spec = Const (full makeN, all_types ---> recT 0) $$ all_vars :==
6df58e87ec91 recovered original "make";
wenzelm
parents: 12255
diff changeset
  1110
      mk_record (all_named_vars, HOLogic.unit);
6df58e87ec91 recovered original "make";
wenzelm
parents: 12255
diff changeset
  1111
    val fields_spec = Const (full fieldsN, types ---> fieldsT) $$ vars :==
6df58e87ec91 recovered original "make";
wenzelm
parents: 12255
diff changeset
  1112
      mk_record (named_vars, HOLogic.unit);
12247
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
  1113
    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
  1114
      mk_record (mk_named_sels all_names (r 0), more);
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
  1115
    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
  1116
      mk_record (all_sels, HOLogic.unit);
4894
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
  1117
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
  1118
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
  1119
    (* prepare propositions *)
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
  1120
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
  1121
    (*selectors*)
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
  1122
    val sel_props =
12247
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
  1123
      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
  1124
        [more_part (rec_scheme 0) === more];
4894
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
  1125
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
  1126
    (*updates*)
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
  1127
    fun mk_upd_prop (i, (c, T)) =
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
  1128
      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
  1129
        mk_update (rec_scheme 0) (c, x') ===
4894
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
  1130
          mk_record (nth_update (c, x') (parent_len + i, all_named_vars), more)
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
  1131
      end;
5197
69c77ed95ba3 added more_update;
wenzelm
parents: 5060
diff changeset
  1132
    val update_props =
69c77ed95ba3 added more_update;
wenzelm
parents: 5060
diff changeset
  1133
      ListPair.map mk_upd_prop (idxs, fields) @
69c77ed95ba3 added more_update;
wenzelm
parents: 5060
diff changeset
  1134
        let val more' = Free (variant all_xs (moreN ^ "'"), moreT)
12247
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
  1135
        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
  1136
9626
c4a45149cc46 sel_upd proc: include 'more' pseudo-field;
wenzelm
parents: 9315
diff changeset
  1137
    (*equality*)
c4a45149cc46 sel_upd proc: include 'more' pseudo-field;
wenzelm
parents: 9315
diff changeset
  1138
    fun mk_sel_eq (t, T) =
12247
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
  1139
      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
  1140
      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
  1141
    val sel_eqs = map2 mk_sel_eq
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
  1142
      (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
  1143
    val equality_prop =
12247
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
  1144
      Term.all (rec_schemeT 0) $ (Abs ("r", rec_schemeT 0,
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
  1145
        Term.all (rec_schemeT 0) $ (Abs ("r'", rec_schemeT 0,
9626
c4a45149cc46 sel_upd proc: include 'more' pseudo-field;
wenzelm
parents: 9315
diff changeset
  1146
          Logic.list_implies (sel_eqs,
12247
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
  1147
            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
  1148
96f267adc029 provodes induct/cases for use with corresponding Isar methods;
wenzelm
parents: 11923
diff changeset
  1149
    (*induct*)
12247
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
  1150
    fun induct_scheme_prop n =
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
  1151
      let val P = Free ("P", rec_schemeT n --> HOLogic.boolT) in
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
  1152
        (All (prune n all_xs_more ~~ prune n all_types_more)
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
  1153
          (Trueprop (P $ rec_scheme n)), Trueprop (P $ r_scheme n))
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
  1154
      end;
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
  1155
    fun induct_prop n =
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
  1156
      let val P = Free ("P", recT n --> HOLogic.boolT) in
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
  1157
        (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
  1158
      end;
11927
96f267adc029 provodes induct/cases for use with corresponding Isar methods;
wenzelm
parents: 11923
diff changeset
  1159
96f267adc029 provodes induct/cases for use with corresponding Isar methods;
wenzelm
parents: 11923
diff changeset
  1160
    (*cases*)
96f267adc029 provodes induct/cases for use with corresponding Isar methods;
wenzelm
parents: 11923
diff changeset
  1161
    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
  1162
    fun cases_scheme_prop n =
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
  1163
      All (prune n all_xs_more ~~ prune n all_types_more)
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
  1164
        ((r_scheme n === rec_scheme n) ==> C) ==> C;
12255
wenzelm
parents: 12247
diff changeset
  1165
    fun cases_prop n = 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
  1166
14255
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
  1167
    (*split*)
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
  1168
    fun split_scheme_meta_prop n =
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
  1169
      let val P = Free ("P", rec_schemeT n --> Term.propT) in
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
  1170
       equals (Term.propT) $
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
  1171
        (Term.list_all_free ([(rN,rec_schemeT n)],(P $ r_scheme n)))$
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
  1172
        (All (prune n all_xs_more ~~ prune n all_types_more) (P $ rec_scheme n))
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
  1173
      end;
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
  1174
14255
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
  1175
    fun split_scheme_object_prop n =
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
  1176
      let val P = Free ("P", rec_schemeT n --> HOLogic.boolT) 
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
  1177
          val ALL = foldr (fn ((v,T),t) => HOLogic.mk_all (v,T,t)) 
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
  1178
      in
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
  1179
	Trueprop (
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
  1180
           HOLogic.eq_const (HOLogic.boolT) $
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
  1181
            (HOLogic.mk_all ((rN,rec_schemeT n,P $ r_scheme n)))$
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
  1182
            (ALL (prune n all_xs_more ~~ prune n all_types_more,P $ rec_scheme n)))
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
  1183
      end;
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
  1184
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
  1185
      fun split_scheme_object_ex_prop n =
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
  1186
      let val P = Free ("P", rec_schemeT n --> HOLogic.boolT) 
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
  1187
          val EX = foldr (fn ((v,T),t) => HOLogic.mk_exists (v,T,t)) 
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
  1188
      in
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
  1189
	Trueprop (
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
  1190
           HOLogic.eq_const (HOLogic.boolT) $
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
  1191
            (HOLogic.mk_exists ((rN,rec_schemeT n,P $ r_scheme n)))$
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
  1192
            (EX (prune n all_xs_more ~~ prune n all_types_more,P $ rec_scheme n)))
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
  1193
      end;
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
  1194
    (* 1st stage: fields_thy *)
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
  1195
11927
96f267adc029 provodes induct/cases for use with corresponding Isar methods;
wenzelm
parents: 11923
diff changeset
  1196
    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
  1197
      thy
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
  1198
      |> Theory.add_path bname
11832
8fca3665d1ee use abstract product type instead of datatype;
wenzelm
parents: 11739
diff changeset
  1199
      |> 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
  1200
12247
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
  1201
    val all_field_inducts = flat (map #field_inducts parents) @ field_inducts;
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
  1202
    val all_field_cases = flat (map #field_cases parents) @ field_cases;
14255
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
  1203
    val all_field_splits = flat (map #field_splits parents) @ field_splits
4867
9be2bf0ce909 package extensible records with structural subtyping in HOL -- still
wenzelm
parents:
diff changeset
  1204
14255
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
  1205
    
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
  1206
    (* 2nd stage: defs_thy *)
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
  1207
14255
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
  1208
        
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
  1209
   
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
  1210
11934
6c1bf72430b6 derived operations are now: make, extend, truncate (cf. derived_defs);
wenzelm
parents: 11927
diff changeset
  1211
    val (defs_thy, (((sel_defs, update_defs), derived_defs))) =
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
  1212
      fields_thy
14255
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
  1213
      |> Theory.add_trfuns 
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
  1214
           ([],[],record_type_abbr_tr's fields_thy @ field_type_tr's @ field_tr's, [])
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
  1215
      |> add_field_splits (map (suffix field_typeN) names) field_splits
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
  1216
      |> Theory.parent_path
12255
wenzelm
parents: 12247
diff changeset
  1217
      |> Theory.add_tyabbrs_i recordT_specs
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
  1218
      |> Theory.add_path bname
12506
154b14fbc1d6 mixfix syntax for selectors;
wenzelm
parents: 12449
diff changeset
  1219
      |> Theory.add_consts_i
154b14fbc1d6 mixfix syntax for selectors;
wenzelm
parents: 12449
diff changeset
  1220
        (map2 (fn ((x, T), mx) => (x, T, mx)) (sel_decls, field_syntax @ [Syntax.NoSyn]))
4894
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
  1221
      |> (Theory.add_consts_i o map Syntax.no_syn)
12506
154b14fbc1d6 mixfix syntax for selectors;
wenzelm
parents: 12449
diff changeset
  1222
        (update_decls @ [make_decl, fields_decl, extend_decl, truncate_decl])
11832
8fca3665d1ee use abstract product type instead of datatype;
wenzelm
parents: 11739
diff changeset
  1223
      |> (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
  1224
      |>>> (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
  1225
      |>>> (PureThy.add_defs_i false o map Thm.no_attributes)
12590
3573830e9b91 hide base name of "make", "fields", "extend", "truncate", "more",
wenzelm
parents: 12506
diff changeset
  1226
        [make_spec, fields_spec, extend_spec, truncate_spec]
3573830e9b91 hide base name of "make", "fields", "extend", "truncate", "more",
wenzelm
parents: 12506
diff changeset
  1227
      |>> Theory.hide_consts false [full makeN, full fieldsN, full extendN, full truncateN,
3573830e9b91 hide base name of "make", "fields", "extend", "truncate", "more",
wenzelm
parents: 12506
diff changeset
  1228
        full moreN, full (suffix updateN moreN)];
11927
96f267adc029 provodes induct/cases for use with corresponding Isar methods;
wenzelm
parents: 11923
diff changeset
  1229
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
  1230
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
  1231
    (* 3rd stage: thms_thy *)
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
  1232
12247
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
  1233
    val prove_standard = Tactic.prove_standard (Theory.sign_of defs_thy);
11967
49c7f03cd311 use Tactic.prove;
wenzelm
parents: 11959
diff changeset
  1234
    fun prove_simp simps =
49c7f03cd311 use Tactic.prove;
wenzelm
parents: 11959
diff changeset
  1235
      let val tac = simp_all_tac HOL_basic_ss simps
49c7f03cd311 use Tactic.prove;
wenzelm
parents: 11959
diff changeset
  1236
      in fn prop => prove_standard [] [] prop (K tac) end;
4890
f0a24bad990a concrete syntax for record terms;
wenzelm
parents: 4867
diff changeset
  1237
11967
49c7f03cd311 use Tactic.prove;
wenzelm
parents: 11959
diff changeset
  1238
    val parent_simps = flat (map #simps parents);
49c7f03cd311 use Tactic.prove;
wenzelm
parents: 11959
diff changeset
  1239
    val sel_convs = map (prove_simp (parent_simps @ sel_defs @ field_simps)) sel_props;
49c7f03cd311 use Tactic.prove;
wenzelm
parents: 11959
diff changeset
  1240
    val update_convs = map (prove_simp (parent_simps @ update_defs @ sel_convs)) update_props;
4894
32187e0b8b48 'more' selector;
wenzelm
parents: 4890
diff changeset
  1241
12247
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
  1242
    fun induct_scheme n =
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
  1243
      let val (assm, concl) = induct_scheme_prop n in
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
  1244
        prove_standard [] [assm] concl (fn prems =>
13904
c13e6e218a69 try_param_tac now precomputes substitution for rule, in order to avoid
berghofe
parents: 13462
diff changeset
  1245
          EVERY (map (fn rule => try_param_tac rN rule 1) (prune n all_field_inducts))
12247
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
  1246
          THEN resolve_tac prems 1)
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
  1247
      end;
11927
96f267adc029 provodes induct/cases for use with corresponding Isar methods;
wenzelm
parents: 11923
diff changeset
  1248
12247
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
  1249
    fun cases_scheme n =
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
  1250
      prove_standard [] [] (cases_scheme_prop n) (fn _ =>
13904
c13e6e218a69 try_param_tac now precomputes substitution for rule, in order to avoid
berghofe
parents: 13462
diff changeset
  1251
        EVERY (map (fn rule => try_param_tac rN rule 1) (prune n all_field_cases))
11967
49c7f03cd311 use Tactic.prove;
wenzelm
parents: 11959
diff changeset
  1252
        THEN simp_all_tac HOL_basic_ss []);
11927
96f267adc029 provodes induct/cases for use with corresponding Isar methods;
wenzelm
parents: 11923
diff changeset
  1253
14255
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
  1254
    fun split_scheme_meta n =
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
  1255
      prove_standard [] [] (split_scheme_meta_prop n) (fn _ =>
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
  1256
        Simplifier.full_simp_tac (HOL_basic_ss addsimps all_field_splits) 1);
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
  1257
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
  1258
    fun split_scheme_object induct_scheme n =
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
  1259
      prove_standard [] [] (split_scheme_object_prop n) (fn _ =>
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
  1260
         EVERY [rtac iffI 1, 
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
  1261
                REPEAT (rtac allI 1), etac allE 1, atac 1,
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
  1262
                rtac allI 1, rtac induct_scheme 1,REPEAT (etac allE 1),atac 1]);
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
  1263
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
  1264
    fun split_scheme_object_ex split_scheme_meta n =
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
  1265
      prove_standard [] [] (split_scheme_object_ex_prop n) (fn _ =>
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
  1266
        fast_simp_tac (claset_of HOL.thy,
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
  1267
                       HOL_basic_ss addsimps [split_scheme_meta]) 1);
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
  1268
       
12247
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
  1269
    val induct_scheme0 = induct_scheme 0;
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
  1270
    val cases_scheme0 = cases_scheme 0;
14255
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
  1271
    val split_scheme_meta0 = split_scheme_meta 0;
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
  1272
    val split_scheme_object0 = split_scheme_object induct_scheme0 0;
e6e3e3f0deed Records:
schirmer
parents: 14079
diff changeset
  1273
    val split_scheme_object_ex0 = split_scheme_object_ex split_scheme_meta0 0;
12247
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
  1274
    val more_induct_scheme = map induct_scheme ancestry;
9b029789aff6 derive cases/induct rules for ``more'' parts;
wenzelm
parents: 12129
diff changeset
  1275
    val more_cases_scheme = map cases_scheme ancestry;
11927
96f267adc029 provodes induct/cases for use with corresponding Isar methods;
wenzelm
parents: 11923
diff changeset