src/HOL/Tools/datatype_package.ML
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(*  Title:      HOL/Tools/datatype_package.ML
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    ID:         $Id$
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    Author:     Stefan Berghofer, TU Muenchen
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Datatype package for Isabelle/HOL.
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*)
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signature BASIC_DATATYPE_PACKAGE =
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sig
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  val induct_tac : string -> int -> tactic
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  val induct_thm_tac : thm -> string -> int -> tactic
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  val case_tac : string -> int -> tactic
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  val distinct_simproc : simproc
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end;
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signature DATATYPE_PACKAGE =
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sig
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  include BASIC_DATATYPE_PACKAGE
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  val quiet_mode : bool ref
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  val add_datatype : bool -> string list -> (string list * bstring * mixfix *
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    (bstring * string list * mixfix) list) list -> theory ->
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      {distinct : thm list list,
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       inject : thm list list,
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       exhaustion : thm list,
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       rec_thms : thm list,
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       case_thms : thm list list,
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       split_thms : (thm * thm) list,
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       induction : thm,
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       size : thm list,
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       simps : thm list} * theory
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  val add_datatype_i : bool -> bool -> string list -> (string list * bstring * mixfix *
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    (bstring * typ list * mixfix) list) list -> theory ->
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      {distinct : thm list list,
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       inject : thm list list,
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       exhaustion : thm list,
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       rec_thms : thm list,
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       case_thms : thm list list,
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       split_thms : (thm * thm) list,
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       induction : thm,
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       size : thm list,
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       simps : thm list} * theory
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  val rep_datatype_i : string list option -> (thm list * attribute list) list list ->
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    (thm list * attribute list) list list -> (thm list * attribute list) ->
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    theory ->
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      {distinct : thm list list,
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       inject : thm list list,
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       exhaustion : thm list,
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       rec_thms : thm list,
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       case_thms : thm list list,
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       split_thms : (thm * thm) list,
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       induction : thm,
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       size : thm list,
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       simps : thm list} * theory
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  val rep_datatype : string list option -> (thmref * Attrib.src list) list list ->
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    (thmref * Attrib.src list) list list -> thmref * Attrib.src list -> theory ->
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      {distinct : thm list list,
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       inject : thm list list,
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       exhaustion : thm list,
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       rec_thms : thm list,
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       case_thms : thm list list,
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       split_thms : (thm * thm) list,
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       induction : thm,
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       size : thm list,
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       simps : thm list} * theory
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  val get_datatypes : theory -> DatatypeAux.datatype_info Symtab.table
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  val get_datatype : theory -> string -> DatatypeAux.datatype_info option
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  val the_datatype : theory -> string -> DatatypeAux.datatype_info
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  val get_datatype_spec : theory -> string -> ((string * sort) list * (string * typ list) list) option
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  val get_datatype_constrs : theory -> string -> (string * typ) list option
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  val print_datatypes : theory -> unit
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  val setup: theory -> theory
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end;
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structure DatatypePackage : DATATYPE_PACKAGE =
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struct
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open DatatypeAux;
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val quiet_mode = quiet_mode;
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(* data kind 'HOL/datatypes' *)
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structure DatatypesData = TheoryDataFun
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(struct
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  val name = "HOL/datatypes";
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  type T = datatype_info Symtab.table;
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  val empty = Symtab.empty;
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  val copy = I;
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  val extend = I;
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  fun merge _ tabs : T = Symtab.merge (K true) tabs;
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  fun print sg tab =
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    Pretty.writeln (Pretty.strs ("datatypes:" ::
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      map #1 (NameSpace.extern_table (Sign.type_space sg, tab))));
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end);
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val get_datatypes = DatatypesData.get;
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val put_datatypes = DatatypesData.put;
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val print_datatypes = DatatypesData.print;
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(** theory information about datatypes **)
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val get_datatype = Symtab.lookup o get_datatypes;
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fun the_datatype thy name = (case get_datatype thy name of
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      SOME info => info
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    | NONE => error ("Unknown datatype " ^ quote name));
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fun get_datatype_descr thy dtco =
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  get_datatype thy dtco
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  |> Option.map (fn info as { descr, index, ... } => 
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       (info, (((fn SOME (_, dtys, cos) => (dtys, cos)) o AList.lookup (op =) descr) index)));
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fun get_datatype_spec thy dtco =
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  let
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    fun mk_cons typ_of_dtyp (co, tys) =
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      (co, map typ_of_dtyp tys);
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    fun mk_dtyp ({ sorts = raw_sorts, descr, ... } : DatatypeAux.datatype_info, (dtys, cos)) =
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      let
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        val sorts = map ((fn v => (v, (the o AList.lookup (op =) raw_sorts) v))
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          o DatatypeAux.dest_DtTFree) dtys;
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        val typ_of_dtyp = DatatypeAux.typ_of_dtyp descr sorts;
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        val tys = map typ_of_dtyp dtys;
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      in (sorts, map (mk_cons typ_of_dtyp) cos) end;
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  in Option.map mk_dtyp (get_datatype_descr thy dtco) end;
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fun get_datatype_constrs thy dtco =
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  case get_datatype_spec thy dtco
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   of SOME (sorts, cos) =>
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        let
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          fun subst (v, sort) = TVar ((v, 0), sort);
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          fun subst_ty (TFree v) = subst v
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            | subst_ty ty = ty;
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          val dty = Type (dtco, map subst sorts);
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          fun mk_co (co, tys) = (co, map (Term.map_atyps subst_ty) tys ---> dty);
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        in SOME (map mk_co cos) end
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    | NONE => NONE;
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fun find_tname var Bi =
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  let val frees = map dest_Free (term_frees Bi)
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      val params = rename_wrt_term Bi (Logic.strip_params Bi);
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  in case AList.lookup (op =) (frees @ params) var of
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       NONE => error ("No such variable in subgoal: " ^ quote var)
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     | SOME(Type (tn, _)) => tn
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     | _ => error ("Cannot determine type of " ^ quote var)
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  end;
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fun infer_tname state i aterm =
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  let
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    val sign = Thm.sign_of_thm state;
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    val (_, _, Bi, _) = Thm.dest_state (state, i)
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    val params = Logic.strip_params Bi;   (*params of subgoal i*)
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    val params = rev (rename_wrt_term Bi params);   (*as they are printed*)
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    val (types, sorts) = types_sorts state;
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    fun types' (a, ~1) = (case AList.lookup (op =) params a of NONE => types(a, ~1) | sm => sm)
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      | types' ixn = types ixn;
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    val (ct, _) = read_def_cterm (sign, types', sorts) [] false (aterm, TypeInfer.logicT);
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  in case #T (rep_cterm ct) of
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       Type (tn, _) => tn
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     | _ => error ("Cannot determine type of " ^ quote aterm)
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  end;
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(*Warn if the (induction) variable occurs Free among the premises, which
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  usually signals a mistake.  But calls the tactic either way!*)
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fun occs_in_prems tacf vars =
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  SUBGOAL (fn (Bi, i) =>
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           (if exists (fn (a, _) => member (op =) vars a)
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                      (fold Term.add_frees (#2 (strip_context Bi)) [])
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             then warning "Induction variable occurs also among premises!"
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             else ();
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            tacf i));
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(* generic induction tactic for datatypes *)
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local
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fun prep_var (Var (ixn, _), SOME x) = SOME (ixn, x)
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  | prep_var _ = NONE;
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fun prep_inst (concl, xs) = (*exception Library.UnequalLengths*)
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  let val vs = InductAttrib.vars_of concl
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  in map_filter prep_var (Library.drop (length vs - length xs, vs) ~~ xs) end;
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in
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fun gen_induct_tac inst_tac (varss, opt_rule) i state = 
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  SUBGOAL (fn (Bi,_) =>
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  let
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    val (rule, rule_name) =
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      case opt_rule of
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          SOME r => (r, "Induction rule")
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        | NONE =>
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            let val tn = find_tname (hd (map_filter I (flat varss))) Bi
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                val {sign, ...} = Thm.rep_thm state
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            in (#induction (the_datatype sign tn), "Induction rule for type " ^ tn) 
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            end
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    val concls = HOLogic.dest_concls (Thm.concl_of rule);
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    val insts = maps prep_inst (concls ~~ varss) handle Library.UnequalLengths =>
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      error (rule_name ^ " has different numbers of variables");
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  in occs_in_prems (inst_tac insts rule) (map #2 insts) i end)
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  i state;
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fun induct_tac s =
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  gen_induct_tac Tactic.res_inst_tac'
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    (map (single o SOME) (Syntax.read_idents s), NONE);
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fun induct_thm_tac th s =
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  gen_induct_tac Tactic.res_inst_tac'
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    ([map SOME (Syntax.read_idents s)], SOME th);
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end;
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(* generic case tactic for datatypes *)
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fun case_inst_tac inst_tac t rule i state =
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  let
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    val _ $ Var (ixn, _) $ _ = HOLogic.dest_Trueprop
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      (hd (Logic.strip_assums_hyp (hd (Thm.prems_of rule))));
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  in inst_tac [(ixn, t)] rule i state end;
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fun gen_case_tac inst_tac (t, SOME rule) i state =
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      case_inst_tac inst_tac t rule i state
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  | gen_case_tac inst_tac (t, NONE) i state =
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      let val tn = infer_tname state i t in
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        if tn = HOLogic.boolN then inst_tac [(("P", 0), t)] case_split_thm i state
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        else case_inst_tac inst_tac t
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               (#exhaustion (the_datatype (Thm.sign_of_thm state) tn))
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               i state
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      end handle THM _ => Seq.empty;
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fun case_tac t = gen_case_tac Tactic.res_inst_tac' (t, NONE);
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(** Isar tactic emulations **)
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local
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val rule_spec = Scan.lift (Args.$$$ "rule" -- Args.$$$ ":");
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val opt_rule = Scan.option (rule_spec |-- Attrib.thm);
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val varss =
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  Args.and_list (Scan.repeat (Scan.unless rule_spec (Scan.lift (Args.maybe Args.name))));
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val inst_tac = RuleInsts.bires_inst_tac false;
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fun induct_meth ctxt (varss, opt_rule) =
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  gen_induct_tac (inst_tac ctxt) (varss, opt_rule);
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fun case_meth ctxt (varss, opt_rule) =
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  gen_case_tac (inst_tac ctxt) (varss, opt_rule);
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in
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val tactic_emulations =
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 [("induct_tac", Method.goal_args_ctxt' (varss -- opt_rule) induct_meth,
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    "induct_tac emulation (dynamic instantiation)"),
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  ("case_tac", Method.goal_args_ctxt' (Scan.lift Args.name -- opt_rule) case_meth,
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    "case_tac emulation (dynamic instantiation)")];
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end;
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b0d2002f9f04 proof methods: 'case_tac' / 'induct_tac';
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(** induct method setup **)
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(* case names *)
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local
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fun dt_recs (DtTFree _) = []
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  | dt_recs (DtType (_, dts)) = maps dt_recs dts
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  | dt_recs (DtRec i) = [i];
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fun dt_cases (descr: descr) (_, args, constrs) =
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  let
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    fun the_bname i = Sign.base_name (#1 (the (AList.lookup (op =) descr i)));
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    val bnames = map the_bname (distinct (op =) (maps dt_recs args));
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  in map (fn (c, _) => space_implode "_" (Sign.base_name c :: bnames)) constrs end;
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fun induct_cases descr =
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  DatatypeProp.indexify_names (maps (dt_cases descr) (map #2 descr));
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fun exhaust_cases descr i = dt_cases descr (the (AList.lookup (op =) descr i));
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in
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fun mk_case_names_induct descr = RuleCases.case_names (induct_cases descr);
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fun mk_case_names_exhausts descr new =
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  map (RuleCases.case_names o exhaust_cases descr o #1)
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    (filter (fn ((_, (name, _, _))) => member (op =) new name) descr);
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end;
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fun add_rules simps case_thms size_thms rec_thms inject distinct
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                  weak_case_congs cong_att =
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  PureThy.add_thmss [(("simps", simps), []),
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    (("", flat case_thms @ size_thms @ 
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          flat distinct @ rec_thms), [Simplifier.simp_add]),
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    (("", size_thms @ rec_thms), [RecfunCodegen.add NONE]),
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    (("", flat inject), [iff_add]),
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    (("", map (fn th => th RS notE) (flat distinct)), [Classical.safe_elim NONE]),
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    (("", weak_case_congs), [cong_att])]
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  #> snd;
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(* add_cases_induct *)
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fun add_cases_induct infos induction thy =
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parents: 8279
diff changeset
   316
  let
19874
cc4b2b882e4c ProjectRule now context dependent;
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parents: 19841
diff changeset
   317
    val inducts = ProjectRule.projections (ProofContext.init thy) induction;
8405
0255394a05da add_cases_induct: produce proper case names;
wenzelm
parents: 8325
diff changeset
   318
11805
b110a1ea90da declare projected induction rules stemming from nested recursion;
wenzelm
parents: 11725
diff changeset
   319
    fun named_rules (name, {index, exhaustion, ...}: datatype_info) =
19874
cc4b2b882e4c ProjectRule now context dependent;
wenzelm
parents: 19841
diff changeset
   320
      [(("", nth inducts index), [InductAttrib.induct_type name]),
18728
6790126ab5f6 simplified type attribute;
wenzelm
parents: 18708
diff changeset
   321
       (("", exhaustion), [InductAttrib.cases_type name])];
11805
b110a1ea90da declare projected induction rules stemming from nested recursion;
wenzelm
parents: 11725
diff changeset
   322
    fun unnamed_rule i =
19874
cc4b2b882e4c ProjectRule now context dependent;
wenzelm
parents: 19841
diff changeset
   323
      (("", nth inducts i), [PureThy.kind_internal, InductAttrib.induct_type ""]);
18462
b67d423b5234 *.inducts holds all projected rules;
wenzelm
parents: 18455
diff changeset
   324
  in
19874
cc4b2b882e4c ProjectRule now context dependent;
wenzelm
parents: 19841
diff changeset
   325
    thy |> PureThy.add_thms
21045
66d6d1b0ddfa slight cleanup
haftmann
parents: 20820
diff changeset
   326
      (maps named_rules infos @
19874
cc4b2b882e4c ProjectRule now context dependent;
wenzelm
parents: 19841
diff changeset
   327
        map unnamed_rule (length infos upto length inducts - 1)) |> snd
cc4b2b882e4c ProjectRule now context dependent;
wenzelm
parents: 19841
diff changeset
   328
    |> PureThy.add_thmss [(("inducts", inducts), [])] |> snd
18462
b67d423b5234 *.inducts holds all projected rules;
wenzelm
parents: 18455
diff changeset
   329
  end;
8306
9855f1801d2b HOLogic.dest_conj;
wenzelm
parents: 8279
diff changeset
   330
5177
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   331
8405
0255394a05da add_cases_induct: produce proper case names;
wenzelm
parents: 8325
diff changeset
   332
7015
85be09eb136c - Datatype package now also supports arbitrarily branching datatypes
berghofe
parents: 6851
diff changeset
   333
(**** simplification procedure for showing distinctness of constructors ****)
85be09eb136c - Datatype package now also supports arbitrarily branching datatypes
berghofe
parents: 6851
diff changeset
   334
7060
berghofe
parents: 7049
diff changeset
   335
fun stripT (i, Type ("fun", [_, T])) = stripT (i + 1, T)
berghofe
parents: 7049
diff changeset
   336
  | stripT p = p;
berghofe
parents: 7049
diff changeset
   337
berghofe
parents: 7049
diff changeset
   338
fun stripC (i, f $ x) = stripC (i + 1, f)
berghofe
parents: 7049
diff changeset
   339
  | stripC p = p;
berghofe
parents: 7049
diff changeset
   340
7015
85be09eb136c - Datatype package now also supports arbitrarily branching datatypes
berghofe
parents: 6851
diff changeset
   341
val distinctN = "constr_distinct";
85be09eb136c - Datatype package now also supports arbitrarily branching datatypes
berghofe
parents: 6851
diff changeset
   342
85be09eb136c - Datatype package now also supports arbitrarily branching datatypes
berghofe
parents: 6851
diff changeset
   343
exception ConstrDistinct of term;
85be09eb136c - Datatype package now also supports arbitrarily branching datatypes
berghofe
parents: 6851
diff changeset
   344
19539
5b37bb0ad964 ThyInfo.the_theory;
wenzelm
parents: 19346
diff changeset
   345
fun distinct_proc thy ss (t as Const ("op =", _) $ t1 $ t2) =
7060
berghofe
parents: 7049
diff changeset
   346
  (case (stripC (0, t1), stripC (0, t2)) of
berghofe
parents: 7049
diff changeset
   347
     ((i, Const (cname1, T1)), (j, Const (cname2, T2))) =>
berghofe
parents: 7049
diff changeset
   348
         (case (stripT (0, T1), stripT (0, T2)) of
berghofe
parents: 7049
diff changeset
   349
            ((i', Type (tname1, _)), (j', Type (tname2, _))) =>
berghofe
parents: 7049
diff changeset
   350
                if tname1 = tname2 andalso not (cname1 = cname2) andalso i = i' andalso j = j' then
19539
5b37bb0ad964 ThyInfo.the_theory;
wenzelm
parents: 19346
diff changeset
   351
                   (case (get_datatype_descr thy) tname1 of
19346
c4c003abd830 cleanup in datatype package
haftmann
parents: 19046
diff changeset
   352
                      SOME (_, (_, constrs)) => let val cnames = map fst constrs
7015
85be09eb136c - Datatype package now also supports arbitrarily branching datatypes
berghofe
parents: 6851
diff changeset
   353
                        in if cname1 mem cnames andalso cname2 mem cnames then
85be09eb136c - Datatype package now also supports arbitrarily branching datatypes
berghofe
parents: 6851
diff changeset
   354
                             let val eq_t = Logic.mk_equals (t, Const ("False", HOLogic.boolT));
19539
5b37bb0ad964 ThyInfo.the_theory;
wenzelm
parents: 19346
diff changeset
   355
                                 val eq_ct = cterm_of thy eq_t;
5b37bb0ad964 ThyInfo.the_theory;
wenzelm
parents: 19346
diff changeset
   356
                                 val Datatype_thy = ThyInfo.the_theory "Datatype" thy;
7015
85be09eb136c - Datatype package now also supports arbitrarily branching datatypes
berghofe
parents: 6851
diff changeset
   357
                                 val [In0_inject, In1_inject, In0_not_In1, In1_not_In0] =
16486
1a12cdb6ee6b get_thm(s): Name;
wenzelm
parents: 16430
diff changeset
   358
                                   map (get_thm Datatype_thy o Name)
7015
85be09eb136c - Datatype package now also supports arbitrarily branching datatypes
berghofe
parents: 6851
diff changeset
   359
                                     ["In0_inject", "In1_inject", "In0_not_In1", "In1_not_In0"]
19539
5b37bb0ad964 ThyInfo.the_theory;
wenzelm
parents: 19346
diff changeset
   360
                             in (case (#distinct (the_datatype thy tname1)) of
15531
08c8dad8e399 Deleted Library.option type.
skalberg
parents: 15457
diff changeset
   361
                                 QuickAndDirty => SOME (Thm.invoke_oracle
19539
5b37bb0ad964 ThyInfo.the_theory;
wenzelm
parents: 19346
diff changeset
   362
                                   Datatype_thy distinctN (thy, ConstrDistinct eq_t))
20054
24d176b8f240 distinct simproc/simpset: proper context;
wenzelm
parents: 19925
diff changeset
   363
                               | FewConstrs thms =>
24d176b8f240 distinct simproc/simpset: proper context;
wenzelm
parents: 19925
diff changeset
   364
                                   SOME (Goal.prove (Simplifier.the_context ss) [] [] eq_t (K
24d176b8f240 distinct simproc/simpset: proper context;
wenzelm
parents: 19925
diff changeset
   365
                                     (EVERY [rtac eq_reflection 1, rtac iffI 1, rtac notE 1,
24d176b8f240 distinct simproc/simpset: proper context;
wenzelm
parents: 19925
diff changeset
   366
                                       atac 2, resolve_tac thms 1, etac FalseE 1])))
24d176b8f240 distinct simproc/simpset: proper context;
wenzelm
parents: 19925
diff changeset
   367
                               | ManyConstrs (thm, simpset) =>
24d176b8f240 distinct simproc/simpset: proper context;
wenzelm
parents: 19925
diff changeset
   368
                                   SOME (Goal.prove (Simplifier.the_context ss) [] [] eq_t (K
24d176b8f240 distinct simproc/simpset: proper context;
wenzelm
parents: 19925
diff changeset
   369
                                     (EVERY [rtac eq_reflection 1, rtac iffI 1, dtac thm 1,
24d176b8f240 distinct simproc/simpset: proper context;
wenzelm
parents: 19925
diff changeset
   370
                                      full_simp_tac (Simplifier.inherit_context ss simpset) 1,
24d176b8f240 distinct simproc/simpset: proper context;
wenzelm
parents: 19925
diff changeset
   371
                                      REPEAT (dresolve_tac [In0_inject, In1_inject] 1),
24d176b8f240 distinct simproc/simpset: proper context;
wenzelm
parents: 19925
diff changeset
   372
                                      eresolve_tac [In0_not_In1 RS notE, In1_not_In0 RS notE] 1,
24d176b8f240 distinct simproc/simpset: proper context;
wenzelm
parents: 19925
diff changeset
   373
                                      etac FalseE 1]))))
7015
85be09eb136c - Datatype package now also supports arbitrarily branching datatypes
berghofe
parents: 6851
diff changeset
   374
                             end
15531
08c8dad8e399 Deleted Library.option type.
skalberg
parents: 15457
diff changeset
   375
                           else NONE
7015
85be09eb136c - Datatype package now also supports arbitrarily branching datatypes
berghofe
parents: 6851
diff changeset
   376
                        end
15531
08c8dad8e399 Deleted Library.option type.
skalberg
parents: 15457
diff changeset
   377
                    | NONE => NONE)
08c8dad8e399 Deleted Library.option type.
skalberg
parents: 15457
diff changeset
   378
                else NONE
08c8dad8e399 Deleted Library.option type.
skalberg
parents: 15457
diff changeset
   379
          | _ => NONE)
08c8dad8e399 Deleted Library.option type.
skalberg
parents: 15457
diff changeset
   380
   | _ => NONE)
20054
24d176b8f240 distinct simproc/simpset: proper context;
wenzelm
parents: 19925
diff changeset
   381
  | distinct_proc _ _ _ = NONE;
7015
85be09eb136c - Datatype package now also supports arbitrarily branching datatypes
berghofe
parents: 6851
diff changeset
   382
13462
56610e2ba220 sane interface for simprocs;
wenzelm
parents: 13340
diff changeset
   383
val distinct_simproc =
16430
bc07926e4f03 accomodate change of TheoryDataFun;
wenzelm
parents: 16364
diff changeset
   384
  Simplifier.simproc HOL.thy distinctN ["s = t"] distinct_proc;
7015
85be09eb136c - Datatype package now also supports arbitrarily branching datatypes
berghofe
parents: 6851
diff changeset
   385
85be09eb136c - Datatype package now also supports arbitrarily branching datatypes
berghofe
parents: 6851
diff changeset
   386
val dist_ss = HOL_ss addsimprocs [distinct_simproc];
85be09eb136c - Datatype package now also supports arbitrarily branching datatypes
berghofe
parents: 6851
diff changeset
   387
85be09eb136c - Datatype package now also supports arbitrarily branching datatypes
berghofe
parents: 6851
diff changeset
   388
val simproc_setup =
18708
4b3dadb4fe33 setup: theory -> theory;
wenzelm
parents: 18702
diff changeset
   389
  Theory.add_oracle (distinctN, fn (_, ConstrDistinct t) => t) #>
4b3dadb4fe33 setup: theory -> theory;
wenzelm
parents: 18702
diff changeset
   390
  (fn thy => ((change_simpset_of thy) (fn ss => ss addsimprocs [distinct_simproc]); thy));
7015
85be09eb136c - Datatype package now also supports arbitrarily branching datatypes
berghofe
parents: 6851
diff changeset
   391
85be09eb136c - Datatype package now also supports arbitrarily branching datatypes
berghofe
parents: 6851
diff changeset
   392
14799
a405aadff16c Added more flexible parse / print translations for case expressions.
berghofe
parents: 14471
diff changeset
   393
(**** translation rules for case ****)
a405aadff16c Added more flexible parse / print translations for case expressions.
berghofe
parents: 14471
diff changeset
   394
21772
7c7ade4f537b advanced translation functions: Proof.context;
wenzelm
parents: 21689
diff changeset
   395
fun case_tr ctxt [t, u] =
14799
a405aadff16c Added more flexible parse / print translations for case expressions.
berghofe
parents: 14471
diff changeset
   396
    let
21772
7c7ade4f537b advanced translation functions: Proof.context;
wenzelm
parents: 21689
diff changeset
   397
      val thy = ProofContext.theory_of ctxt;
14799
a405aadff16c Added more flexible parse / print translations for case expressions.
berghofe
parents: 14471
diff changeset
   398
      fun case_error s name ts = raise TERM ("Error in case expression" ^
15570
8d8c70b41bab Move towards standard functions.
skalberg
parents: 15531
diff changeset
   399
        getOpt (Option.map (curry op ^ " for datatype ") name, "") ^ ":\n" ^ s, ts);
21187
16fb5afbf228 case_tr: do not intern already internal consts;
wenzelm
parents: 21127
diff changeset
   400
      fun dest_case1 (Const ("_case1", _) $ t $ u) =
16fb5afbf228 case_tr: do not intern already internal consts;
wenzelm
parents: 21127
diff changeset
   401
          (case strip_comb t of
16fb5afbf228 case_tr: do not intern already internal consts;
wenzelm
parents: 21127
diff changeset
   402
            (Const (s, _), ts) =>
16fb5afbf228 case_tr: do not intern already internal consts;
wenzelm
parents: 21127
diff changeset
   403
              (case try (unprefix Syntax.constN) s of
16fb5afbf228 case_tr: do not intern already internal consts;
wenzelm
parents: 21127
diff changeset
   404
                SOME c => (c, ts)
16fb5afbf228 case_tr: do not intern already internal consts;
wenzelm
parents: 21127
diff changeset
   405
              | NONE => (Sign.intern_const thy s, ts))
21253
f1e3967d559a case_tr': proper handling of authentic consts;
wenzelm
parents: 21251
diff changeset
   406
          | (Free (s, _), ts) => (Sign.intern_const thy s, ts)
15531
08c8dad8e399 Deleted Library.option type.
skalberg
parents: 15457
diff changeset
   407
          | _ => case_error "Head is not a constructor" NONE [t, u], u)
14799
a405aadff16c Added more flexible parse / print translations for case expressions.
berghofe
parents: 14471
diff changeset
   408
        | dest_case1 t = raise TERM ("dest_case1", [t]);
a405aadff16c Added more flexible parse / print translations for case expressions.
berghofe
parents: 14471
diff changeset
   409
      fun dest_case2 (Const ("_case2", _) $ t $ u) = t :: dest_case2 u
a405aadff16c Added more flexible parse / print translations for case expressions.
berghofe
parents: 14471
diff changeset
   410
        | dest_case2 t = [t];
a405aadff16c Added more flexible parse / print translations for case expressions.
berghofe
parents: 14471
diff changeset
   411
      val cases as ((cname, _), _) :: _ = map dest_case1 (dest_case2 u);
18857
c4b4fbd74ffb advanced translations: Context.generic;
wenzelm
parents: 18799
diff changeset
   412
      val tab = Symtab.dest (get_datatypes thy);
14799
a405aadff16c Added more flexible parse / print translations for case expressions.
berghofe
parents: 14471
diff changeset
   413
      val (cases', default) = (case split_last cases of
15531
08c8dad8e399 Deleted Library.option type.
skalberg
parents: 15457
diff changeset
   414
          (cases', (("dummy_pattern", []), t)) => (cases', SOME t)
08c8dad8e399 Deleted Library.option type.
skalberg
parents: 15457
diff changeset
   415
        | _ => (cases, NONE))
21045
66d6d1b0ddfa slight cleanup
haftmann
parents: 20820
diff changeset
   416
      fun abstr (Free (x, T)) body = Term.absfree (x, T, body)
66d6d1b0ddfa slight cleanup
haftmann
parents: 20820
diff changeset
   417
        | abstr (Const ("_constrain", _) $ Free (x, T) $ tT) body =
14799
a405aadff16c Added more flexible parse / print translations for case expressions.
berghofe
parents: 14471
diff changeset
   418
            Syntax.const Syntax.constrainAbsC $ Term.absfree (x, T, body) $ tT
21045
66d6d1b0ddfa slight cleanup
haftmann
parents: 20820
diff changeset
   419
        | abstr (Const ("Pair", _) $ x $ y) body =
66d6d1b0ddfa slight cleanup
haftmann
parents: 20820
diff changeset
   420
            Syntax.const "split" $ (abstr x o abstr y) body
66d6d1b0ddfa slight cleanup
haftmann
parents: 20820
diff changeset
   421
        | abstr t _ = case_error "Illegal pattern" NONE [t];
14799
a405aadff16c Added more flexible parse / print translations for case expressions.
berghofe
parents: 14471
diff changeset
   422
    in case find_first (fn (_, {descr, index, ...}) =>
21045
66d6d1b0ddfa slight cleanup
haftmann
parents: 20820
diff changeset
   423
      exists (equal cname o fst) (#3 (snd (nth descr index)))) tab of
15531
08c8dad8e399 Deleted Library.option type.
skalberg
parents: 15457
diff changeset
   424
        NONE => case_error ("Not a datatype constructor: " ^ cname) NONE [u]
18319
c52b139ebde0 Added new component "sorts" to record datatype_info.
berghofe
parents: 18314
diff changeset
   425
      | SOME (tname, {descr, sorts, case_name, index, ...}) =>
14799
a405aadff16c Added more flexible parse / print translations for case expressions.
berghofe
parents: 14471
diff changeset
   426
        let
a405aadff16c Added more flexible parse / print translations for case expressions.
berghofe
parents: 14471
diff changeset
   427
          val _ = if exists (equal "dummy_pattern" o fst o fst) cases' then
15531
08c8dad8e399 Deleted Library.option type.
skalberg
parents: 15457
diff changeset
   428
            case_error "Illegal occurrence of '_' dummy pattern" (SOME tname) [u] else ();
21045
66d6d1b0ddfa slight cleanup
haftmann
parents: 20820
diff changeset
   429
          val (_, (_, dts, constrs)) = nth descr index;
66d6d1b0ddfa slight cleanup
haftmann
parents: 20820
diff changeset
   430
          fun find_case (s, dt) cases =
14799
a405aadff16c Added more flexible parse / print translations for case expressions.
berghofe
parents: 14471
diff changeset
   431
            (case find_first (equal s o fst o fst) cases' of
21045
66d6d1b0ddfa slight cleanup
haftmann
parents: 20820
diff changeset
   432
               NONE => (list_abs (map (rpair dummyT)
20173
c8f791af9a60 Some cases in "case ... of ..." expressions may now
berghofe
parents: 20071
diff changeset
   433
                 (DatatypeProp.make_tnames (map (typ_of_dtyp descr sorts) dt)),
c8f791af9a60 Some cases in "case ... of ..." expressions may now
berghofe
parents: 20071
diff changeset
   434
                 case default of
c8f791af9a60 Some cases in "case ... of ..." expressions may now
berghofe
parents: 20071
diff changeset
   435
                   NONE => (warning ("No clause for constructor " ^ s ^
c8f791af9a60 Some cases in "case ... of ..." expressions may now
berghofe
parents: 20071
diff changeset
   436
                     " in case expression"); Const ("undefined", dummyT))
21045
66d6d1b0ddfa slight cleanup
haftmann
parents: 20820
diff changeset
   437
                 | SOME t => t), cases)
15531
08c8dad8e399 Deleted Library.option type.
skalberg
parents: 15457
diff changeset
   438
             | SOME (c as ((_, vs), t)) =>
14799
a405aadff16c Added more flexible parse / print translations for case expressions.
berghofe
parents: 14471
diff changeset
   439
                 if length dt <> length vs then
a405aadff16c Added more flexible parse / print translations for case expressions.
berghofe
parents: 14471
diff changeset
   440
                    case_error ("Wrong number of arguments for constructor " ^ s)
15531
08c8dad8e399 Deleted Library.option type.
skalberg
parents: 15457
diff changeset
   441
                      (SOME tname) vs
21045
66d6d1b0ddfa slight cleanup
haftmann
parents: 20820
diff changeset
   442
                 else (fold_rev abstr vs t, remove (op =) c cases))
66d6d1b0ddfa slight cleanup
haftmann
parents: 20820
diff changeset
   443
          val (fs, cases'') = fold_map find_case constrs cases'
14799
a405aadff16c Added more flexible parse / print translations for case expressions.
berghofe
parents: 14471
diff changeset
   444
        in case (cases'', length constrs = length cases', default) of
15531
08c8dad8e399 Deleted Library.option type.
skalberg
parents: 15457
diff changeset
   445
            ([], true, SOME _) =>
08c8dad8e399 Deleted Library.option type.
skalberg
parents: 15457
diff changeset
   446
              case_error "Extra '_' dummy pattern" (SOME tname) [u]
14799
a405aadff16c Added more flexible parse / print translations for case expressions.
berghofe
parents: 14471
diff changeset
   447
          | (_ :: _, _, _) =>
19046
bc5c6c9b114e removed distinct, renamed gen_distinct to distinct;
wenzelm
parents: 19008
diff changeset
   448
              let val extra = distinct (op =) (map (fst o fst) cases'')
14799
a405aadff16c Added more flexible parse / print translations for case expressions.
berghofe
parents: 14471
diff changeset
   449
              in case extra \\ map fst constrs of
a405aadff16c Added more flexible parse / print translations for case expressions.
berghofe
parents: 14471
diff changeset
   450
                  [] => case_error ("More than one clause for constructor(s) " ^
15531
08c8dad8e399 Deleted Library.option type.
skalberg
parents: 15457
diff changeset
   451
                    commas extra) (SOME tname) [u]
14799
a405aadff16c Added more flexible parse / print translations for case expressions.
berghofe
parents: 14471
diff changeset
   452
                | extra' => case_error ("Illegal constructor(s): " ^ commas extra')
15531
08c8dad8e399 Deleted Library.option type.
skalberg
parents: 15457
diff changeset
   453
                    (SOME tname) [u]
14799
a405aadff16c Added more flexible parse / print translations for case expressions.
berghofe
parents: 14471
diff changeset
   454
              end
a405aadff16c Added more flexible parse / print translations for case expressions.
berghofe
parents: 14471
diff changeset
   455
          | _ => list_comb (Syntax.const case_name, fs) $ t
a405aadff16c Added more flexible parse / print translations for case expressions.
berghofe
parents: 14471
diff changeset
   456
        end
a405aadff16c Added more flexible parse / print translations for case expressions.
berghofe
parents: 14471
diff changeset
   457
    end
18857
c4b4fbd74ffb advanced translations: Context.generic;
wenzelm
parents: 18799
diff changeset
   458
  | case_tr _ ts = raise TERM ("case_tr", ts);
14799
a405aadff16c Added more flexible parse / print translations for case expressions.
berghofe
parents: 14471
diff changeset
   459
21772
7c7ade4f537b advanced translation functions: Proof.context;
wenzelm
parents: 21689
diff changeset
   460
fun case_tr' constrs ctxt ts =
14799
a405aadff16c Added more flexible parse / print translations for case expressions.
berghofe
parents: 14471
diff changeset
   461
  if length ts <> length constrs + 1 then raise Match else
a405aadff16c Added more flexible parse / print translations for case expressions.
berghofe
parents: 14471
diff changeset
   462
  let
21772
7c7ade4f537b advanced translation functions: Proof.context;
wenzelm
parents: 21689
diff changeset
   463
    val consts = ProofContext.consts_of ctxt;
21253
f1e3967d559a case_tr': proper handling of authentic consts;
wenzelm
parents: 21251
diff changeset
   464
14799
a405aadff16c Added more flexible parse / print translations for case expressions.
berghofe
parents: 14471
diff changeset
   465
    val (fs, x) = split_last ts;
a405aadff16c Added more flexible parse / print translations for case expressions.
berghofe
parents: 14471
diff changeset
   466
    fun strip_abs 0 t = ([], t)
a405aadff16c Added more flexible parse / print translations for case expressions.
berghofe
parents: 14471
diff changeset
   467
      | strip_abs i (Abs p) =
a405aadff16c Added more flexible parse / print translations for case expressions.
berghofe
parents: 14471
diff changeset
   468
        let val (x, u) = Syntax.atomic_abs_tr' p
a405aadff16c Added more flexible parse / print translations for case expressions.
berghofe
parents: 14471
diff changeset
   469
        in apfst (cons x) (strip_abs (i-1) u) end
a405aadff16c Added more flexible parse / print translations for case expressions.
berghofe
parents: 14471
diff changeset
   470
      | strip_abs i (Const ("split", _) $ t) = (case strip_abs (i+1) t of
a405aadff16c Added more flexible parse / print translations for case expressions.
berghofe
parents: 14471
diff changeset
   471
          (v :: v' :: vs, u) => (Syntax.const "Pair" $ v $ v' :: vs, u));
a405aadff16c Added more flexible parse / print translations for case expressions.
berghofe
parents: 14471
diff changeset
   472
    fun is_dependent i t =
a405aadff16c Added more flexible parse / print translations for case expressions.
berghofe
parents: 14471
diff changeset
   473
      let val k = length (strip_abs_vars t) - i
a405aadff16c Added more flexible parse / print translations for case expressions.
berghofe
parents: 14471
diff changeset
   474
      in k < 0 orelse exists (fn j => j >= k)
a405aadff16c Added more flexible parse / print translations for case expressions.
berghofe
parents: 14471
diff changeset
   475
        (loose_bnos (strip_abs_body t))
a405aadff16c Added more flexible parse / print translations for case expressions.
berghofe
parents: 14471
diff changeset
   476
      end;
a405aadff16c Added more flexible parse / print translations for case expressions.
berghofe
parents: 14471
diff changeset
   477
    val cases = map (fn ((cname, dts), t) =>
21253
f1e3967d559a case_tr': proper handling of authentic consts;
wenzelm
parents: 21251
diff changeset
   478
      (Consts.extern_early consts cname,
14799
a405aadff16c Added more flexible parse / print translations for case expressions.
berghofe
parents: 14471
diff changeset
   479
       strip_abs (length dts) t, is_dependent (length dts) t))
a405aadff16c Added more flexible parse / print translations for case expressions.
berghofe
parents: 14471
diff changeset
   480
      (constrs ~~ fs);
21045
66d6d1b0ddfa slight cleanup
haftmann
parents: 20820
diff changeset
   481
    fun count_cases (_, _, true) = I
66d6d1b0ddfa slight cleanup
haftmann
parents: 20820
diff changeset
   482
      | count_cases (cname, (_, body), false) =
66d6d1b0ddfa slight cleanup
haftmann
parents: 20820
diff changeset
   483
          AList.map_default (op = : term * term -> bool)
66d6d1b0ddfa slight cleanup
haftmann
parents: 20820
diff changeset
   484
            (body, []) (cons cname)
66d6d1b0ddfa slight cleanup
haftmann
parents: 20820
diff changeset
   485
    val cases' = sort (int_ord o swap o pairself (length o snd))
66d6d1b0ddfa slight cleanup
haftmann
parents: 20820
diff changeset
   486
      (fold_rev count_cases cases []);
14799
a405aadff16c Added more flexible parse / print translations for case expressions.
berghofe
parents: 14471
diff changeset
   487
    fun mk_case1 (cname, (vs, body), _) = Syntax.const "_case1" $
a405aadff16c Added more flexible parse / print translations for case expressions.
berghofe
parents: 14471
diff changeset
   488
      list_comb (Syntax.const cname, vs) $ body;
20173
c8f791af9a60 Some cases in "case ... of ..." expressions may now
berghofe
parents: 20071
diff changeset
   489
    fun is_undefined (Const ("undefined", _)) = true
c8f791af9a60 Some cases in "case ... of ..." expressions may now
berghofe
parents: 20071
diff changeset
   490
      | is_undefined _ = false;
14799
a405aadff16c Added more flexible parse / print translations for case expressions.
berghofe
parents: 14471
diff changeset
   491
  in
a405aadff16c Added more flexible parse / print translations for case expressions.
berghofe
parents: 14471
diff changeset
   492
    Syntax.const "_case_syntax" $ x $
a405aadff16c Added more flexible parse / print translations for case expressions.
berghofe
parents: 14471
diff changeset
   493
      foldr1 (fn (t, u) => Syntax.const "_case2" $ t $ u) (map mk_case1
20173
c8f791af9a60 Some cases in "case ... of ..." expressions may now
berghofe
parents: 20071
diff changeset
   494
        (case find_first (is_undefined o fst) cases' of
c8f791af9a60 Some cases in "case ... of ..." expressions may now
berghofe
parents: 20071
diff changeset
   495
           SOME (_, cnames) =>
c8f791af9a60 Some cases in "case ... of ..." expressions may now
berghofe
parents: 20071
diff changeset
   496
           if length cnames = length constrs then [hd cases]
c8f791af9a60 Some cases in "case ... of ..." expressions may now
berghofe
parents: 20071
diff changeset
   497
           else filter_out (fn (_, (_, body), _) => is_undefined body) cases
c8f791af9a60 Some cases in "case ... of ..." expressions may now
berghofe
parents: 20071
diff changeset
   498
         | NONE => case cases' of
14799
a405aadff16c Added more flexible parse / print translations for case expressions.
berghofe
parents: 14471
diff changeset
   499
           [] => cases
a405aadff16c Added more flexible parse / print translations for case expressions.
berghofe
parents: 14471
diff changeset
   500
         | (default, cnames) :: _ =>
a405aadff16c Added more flexible parse / print translations for case expressions.
berghofe
parents: 14471
diff changeset
   501
           if length cnames = 1 then cases
a405aadff16c Added more flexible parse / print translations for case expressions.
berghofe
parents: 14471
diff changeset
   502
           else if length cnames = length constrs then
a405aadff16c Added more flexible parse / print translations for case expressions.
berghofe
parents: 14471
diff changeset
   503
             [hd cases, ("dummy_pattern", ([], default), false)]
a405aadff16c Added more flexible parse / print translations for case expressions.
berghofe
parents: 14471
diff changeset
   504
           else
21045
66d6d1b0ddfa slight cleanup
haftmann
parents: 20820
diff changeset
   505
             filter_out (fn (cname, _, _) => member (op =) cnames cname) cases @
14799
a405aadff16c Added more flexible parse / print translations for case expressions.
berghofe
parents: 14471
diff changeset
   506
             [("dummy_pattern", ([], default), false)]))
a405aadff16c Added more flexible parse / print translations for case expressions.
berghofe
parents: 14471
diff changeset
   507
  end;
a405aadff16c Added more flexible parse / print translations for case expressions.
berghofe
parents: 14471
diff changeset
   508
21045
66d6d1b0ddfa slight cleanup
haftmann
parents: 20820
diff changeset
   509
fun make_case_tr' case_names descr = maps
66d6d1b0ddfa slight cleanup
haftmann
parents: 20820
diff changeset
   510
  (fn ((_, (_, _, constrs)), case_name) =>
66d6d1b0ddfa slight cleanup
haftmann
parents: 20820
diff changeset
   511
    map (rpair (case_tr' constrs)) (NameSpace.accesses' case_name))
66d6d1b0ddfa slight cleanup
haftmann
parents: 20820
diff changeset
   512
      (descr ~~ case_names);
14799
a405aadff16c Added more flexible parse / print translations for case expressions.
berghofe
parents: 14471
diff changeset
   513
a405aadff16c Added more flexible parse / print translations for case expressions.
berghofe
parents: 14471
diff changeset
   514
val trfun_setup =
18708
4b3dadb4fe33 setup: theory -> theory;
wenzelm
parents: 18702
diff changeset
   515
  Theory.add_advanced_trfuns ([], [("_case_syntax", case_tr)], [], []);
14799
a405aadff16c Added more flexible parse / print translations for case expressions.
berghofe
parents: 14471
diff changeset
   516
a405aadff16c Added more flexible parse / print translations for case expressions.
berghofe
parents: 14471
diff changeset
   517
5177
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   518
(* prepare types *)
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   519
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   520
fun read_typ sign ((Ts, sorts), str) =
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   521
  let
17521
0f1c48de39f5 introduced AList module in favor of assoc etc.
haftmann
parents: 17412
diff changeset
   522
    val T = Type.no_tvars (Sign.read_typ (sign, AList.lookup (op =)
5177
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   523
      (map (apfst (rpair ~1)) sorts)) str) handle TYPE (msg, _, _) => error msg
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   524
  in (Ts @ [T], add_typ_tfrees (T, sorts)) end;
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   525
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   526
fun cert_typ sign ((Ts, sorts), raw_T) =
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   527
  let
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   528
    val T = Type.no_tvars (Sign.certify_typ sign raw_T) handle
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   529
      TYPE (msg, _, _) => error msg;
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   530
    val sorts' = add_typ_tfrees (T, sorts)
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   531
  in (Ts @ [T],
18964
67f572e03236 renamed gen_duplicates to duplicates;
wenzelm
parents: 18963
diff changeset
   532
      case duplicates (op =) (map fst sorts') of
5177
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   533
         [] => sorts'
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   534
       | dups => error ("Inconsistent sort constraints for " ^ commas dups))
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   535
  end;
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   536
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   537
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   538
(**** make datatype info ****)
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   539
18319
c52b139ebde0 Added new component "sorts" to record datatype_info.
berghofe
parents: 18314
diff changeset
   540
fun make_dt_info descr sorts induct reccomb_names rec_thms
10121
fb9be005cc44 export get_datatypes_sg;
wenzelm
parents: 9747
diff changeset
   541
    (((((((((i, (_, (tname, _, _))), case_name), case_thms),
fb9be005cc44 export get_datatypes_sg;
wenzelm
parents: 9747
diff changeset
   542
      exhaustion_thm), distinct_thm), inject), nchotomy), case_cong), weak_case_cong) =
fb9be005cc44 export get_datatypes_sg;
wenzelm
parents: 9747
diff changeset
   543
  (tname,
fb9be005cc44 export get_datatypes_sg;
wenzelm
parents: 9747
diff changeset
   544
   {index = i,
fb9be005cc44 export get_datatypes_sg;
wenzelm
parents: 9747
diff changeset
   545
    descr = descr,
18319
c52b139ebde0 Added new component "sorts" to record datatype_info.
berghofe
parents: 18314
diff changeset
   546
    sorts = sorts,
10121
fb9be005cc44 export get_datatypes_sg;
wenzelm
parents: 9747
diff changeset
   547
    rec_names = reccomb_names,
fb9be005cc44 export get_datatypes_sg;
wenzelm
parents: 9747
diff changeset
   548
    rec_rewrites = rec_thms,
fb9be005cc44 export get_datatypes_sg;
wenzelm
parents: 9747
diff changeset
   549
    case_name = case_name,
fb9be005cc44 export get_datatypes_sg;
wenzelm
parents: 9747
diff changeset
   550
    case_rewrites = case_thms,
fb9be005cc44 export get_datatypes_sg;
wenzelm
parents: 9747
diff changeset
   551
    induction = induct,
fb9be005cc44 export get_datatypes_sg;
wenzelm
parents: 9747
diff changeset
   552
    exhaustion = exhaustion_thm,
fb9be005cc44 export get_datatypes_sg;
wenzelm
parents: 9747
diff changeset
   553
    distinct = distinct_thm,
fb9be005cc44 export get_datatypes_sg;
wenzelm
parents: 9747
diff changeset
   554
    inject = inject,
fb9be005cc44 export get_datatypes_sg;
wenzelm
parents: 9747
diff changeset
   555
    nchotomy = nchotomy,
fb9be005cc44 export get_datatypes_sg;
wenzelm
parents: 9747
diff changeset
   556
    case_cong = case_cong,
fb9be005cc44 export get_datatypes_sg;
wenzelm
parents: 9747
diff changeset
   557
    weak_case_cong = weak_case_cong});
5177
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   558
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   559
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   560
(********************* axiomatic introduction of datatypes ********************)
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   561
20597
65fe827aa595 code generation 2 adjustments
haftmann
parents: 20328
diff changeset
   562
fun add_axiom label t atts thy =
65fe827aa595 code generation 2 adjustments
haftmann
parents: 20328
diff changeset
   563
  thy
65fe827aa595 code generation 2 adjustments
haftmann
parents: 20328
diff changeset
   564
  |> PureThy.add_axioms_i [((label, t), atts)];
65fe827aa595 code generation 2 adjustments
haftmann
parents: 20328
diff changeset
   565
65fe827aa595 code generation 2 adjustments
haftmann
parents: 20328
diff changeset
   566
fun add_axioms label ts atts thy =
65fe827aa595 code generation 2 adjustments
haftmann
parents: 20328
diff changeset
   567
  thy
65fe827aa595 code generation 2 adjustments
haftmann
parents: 20328
diff changeset
   568
  |> PureThy.add_axiomss_i [((label, ts), atts)];
8437
258281c43dea removed cases_of;
wenzelm
parents: 8405
diff changeset
   569
20597
65fe827aa595 code generation 2 adjustments
haftmann
parents: 20328
diff changeset
   570
fun add_and_get_axioms_atts label tnames ts attss =
65fe827aa595 code generation 2 adjustments
haftmann
parents: 20328
diff changeset
   571
  fold_map (fn (tname, (atts, t)) => fn thy =>
65fe827aa595 code generation 2 adjustments
haftmann
parents: 20328
diff changeset
   572
    thy
65fe827aa595 code generation 2 adjustments
haftmann
parents: 20328
diff changeset
   573
    |> Theory.add_path tname
65fe827aa595 code generation 2 adjustments
haftmann
parents: 20328
diff changeset
   574
    |> add_axiom label t atts
65fe827aa595 code generation 2 adjustments
haftmann
parents: 20328
diff changeset
   575
    ||> Theory.parent_path
65fe827aa595 code generation 2 adjustments
haftmann
parents: 20328
diff changeset
   576
    |-> (fn [ax] => pair ax)) (tnames ~~ (attss ~~ ts));
5177
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   577
20597
65fe827aa595 code generation 2 adjustments
haftmann
parents: 20328
diff changeset
   578
fun add_and_get_axioms label tnames ts =
65fe827aa595 code generation 2 adjustments
haftmann
parents: 20328
diff changeset
   579
  add_and_get_axioms_atts label tnames ts (replicate (length tnames) []);
65fe827aa595 code generation 2 adjustments
haftmann
parents: 20328
diff changeset
   580
65fe827aa595 code generation 2 adjustments
haftmann
parents: 20328
diff changeset
   581
fun add_and_get_axiomss label tnames tss =
65fe827aa595 code generation 2 adjustments
haftmann
parents: 20328
diff changeset
   582
  fold_map (fn (tname, ts) => fn thy =>
65fe827aa595 code generation 2 adjustments
haftmann
parents: 20328
diff changeset
   583
    thy
65fe827aa595 code generation 2 adjustments
haftmann
parents: 20328
diff changeset
   584
    |> Theory.add_path tname
65fe827aa595 code generation 2 adjustments
haftmann
parents: 20328
diff changeset
   585
    |> add_axioms label ts []
65fe827aa595 code generation 2 adjustments
haftmann
parents: 20328
diff changeset
   586
    ||> Theory.parent_path
65fe827aa595 code generation 2 adjustments
haftmann
parents: 20328
diff changeset
   587
    |-> (fn [ax] => pair ax)) (tnames ~~ tss);
5177
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   588
19716
52c22fccdaaf add_datatype_axm: finalize specified consts;
wenzelm
parents: 19599
diff changeset
   589
fun specify_consts args thy =
20597
65fe827aa595 code generation 2 adjustments
haftmann
parents: 20328
diff changeset
   590
  let
65fe827aa595 code generation 2 adjustments
haftmann
parents: 20328
diff changeset
   591
    val specs = map (fn (c, T, mx) =>
65fe827aa595 code generation 2 adjustments
haftmann
parents: 20328
diff changeset
   592
      Const (Sign.full_name thy (Syntax.const_name c mx), T)) args;
65fe827aa595 code generation 2 adjustments
haftmann
parents: 20328
diff changeset
   593
  in
65fe827aa595 code generation 2 adjustments
haftmann
parents: 20328
diff changeset
   594
    thy
65fe827aa595 code generation 2 adjustments
haftmann
parents: 20328
diff changeset
   595
    |> Sign.add_consts_i args
65fe827aa595 code generation 2 adjustments
haftmann
parents: 20328
diff changeset
   596
    |> Theory.add_finals_i false specs
65fe827aa595 code generation 2 adjustments
haftmann
parents: 20328
diff changeset
   597
  end;
19716
52c22fccdaaf add_datatype_axm: finalize specified consts;
wenzelm
parents: 19599
diff changeset
   598
8437
258281c43dea removed cases_of;
wenzelm
parents: 8405
diff changeset
   599
fun add_datatype_axm flat_names new_type_names descr sorts types_syntax constr_syntax dt_info
258281c43dea removed cases_of;
wenzelm
parents: 8405
diff changeset
   600
    case_names_induct case_names_exhausts thy =
5177
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   601
  let
21045
66d6d1b0ddfa slight cleanup
haftmann
parents: 20820
diff changeset
   602
    val descr' = flat descr;
5177
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   603
    val recTs = get_rec_types descr' sorts;
21045
66d6d1b0ddfa slight cleanup
haftmann
parents: 20820
diff changeset
   604
    val used = map fst (fold Term.add_tfreesT recTs []);
15570
8d8c70b41bab Move towards standard functions.
skalberg
parents: 15531
diff changeset
   605
    val newTs = Library.take (length (hd descr), recTs);
5177
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   606
7015
85be09eb136c - Datatype package now also supports arbitrarily branching datatypes
berghofe
parents: 6851
diff changeset
   607
    val no_size = exists (fn (_, (_, _, constrs)) => exists (fn (_, cargs) => exists
13641
63d1790a43ed Reimplemented parts of datatype package dealing with datatypes involving
berghofe
parents: 13480
diff changeset
   608
      (fn dt => is_rec_type dt andalso not (null (fst (strip_dtyp dt))))
63d1790a43ed Reimplemented parts of datatype package dealing with datatypes involving
berghofe
parents: 13480
diff changeset
   609
        cargs) constrs) descr';
7015
85be09eb136c - Datatype package now also supports arbitrarily branching datatypes
berghofe
parents: 6851
diff changeset
   610
5177
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   611
    (**** declare new types and constants ****)
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   612
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   613
    val tyvars = map (fn (_, (_, Ts, _)) => map dest_DtTFree Ts) (hd descr);
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   614
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   615
    val constr_decls = map (fn (((_, (_, _, constrs)), T), constr_syntax') =>
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   616
      map (fn ((_, cargs), (cname, mx)) =>
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   617
        (cname, map (typ_of_dtyp descr' sorts) cargs ---> T, mx))
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   618
          (constrs ~~ constr_syntax')) ((hd descr) ~~ newTs ~~ constr_syntax);
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   619
15457
1fbd4aba46e3 Adapted to modified interface of PureThy.get_thm(s).
berghofe
parents: 15444
diff changeset
   620
    val (rec_result_Ts, reccomb_fn_Ts) = DatatypeProp.make_primrec_Ts descr sorts used;
5177
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   621
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   622
    val big_reccomb_name = (space_implode "_" new_type_names) ^ "_rec";
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   623
    val reccomb_names = if length descr' = 1 then [big_reccomb_name] else
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   624
      (map ((curry (op ^) (big_reccomb_name ^ "_")) o string_of_int)
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   625
        (1 upto (length descr')));
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   626
9739
8470c4662685 Improved names for size function.
berghofe
parents: 9714
diff changeset
   627
    val size_names = DatatypeProp.indexify_names
15570
8d8c70b41bab Move towards standard functions.
skalberg
parents: 15531
diff changeset
   628
      (map (fn T => name_of_typ T ^ "_size") (Library.drop (length (hd descr), recTs)));
5177
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   629
20071
8f3e1ddb50e6 replaced Term.variant(list) by Name.variant(_list);
wenzelm
parents: 20054
diff changeset
   630
    val freeT = TFree (Name.variant used "'t", HOLogic.typeS);
5177
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   631
    val case_fn_Ts = map (fn (i, (_, _, constrs)) =>
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   632
      map (fn (_, cargs) =>
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   633
        let val Ts = map (typ_of_dtyp descr' sorts) cargs
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   634
        in Ts ---> freeT end) constrs) (hd descr);
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   635
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   636
    val case_names = map (fn s => (s ^ "_case")) new_type_names;
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   637
21419
809e7520234a added instance for class size
haftmann
parents: 21350
diff changeset
   638
    fun instance_size_class tyco thy =
809e7520234a added instance for class size
haftmann
parents: 21350
diff changeset
   639
      let
809e7520234a added instance for class size
haftmann
parents: 21350
diff changeset
   640
        val size_sort = ["Nat.size"];
809e7520234a added instance for class size
haftmann
parents: 21350
diff changeset
   641
        val n = Sign.arity_number thy tyco;
809e7520234a added instance for class size
haftmann
parents: 21350
diff changeset
   642
      in
809e7520234a added instance for class size
haftmann
parents: 21350
diff changeset
   643
        thy
809e7520234a added instance for class size
haftmann
parents: 21350
diff changeset
   644
        |> AxClass.prove_arity (tyco, replicate n HOLogic.typeS, size_sort)
809e7520234a added instance for class size
haftmann
parents: 21350
diff changeset
   645
             (ClassPackage.intro_classes_tac [])
809e7520234a added instance for class size
haftmann
parents: 21350
diff changeset
   646
      end
809e7520234a added instance for class size
haftmann
parents: 21350
diff changeset
   647
21045
66d6d1b0ddfa slight cleanup
haftmann
parents: 20820
diff changeset
   648
    val thy2' = thy
5177
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   649
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   650
      (** new types **)
21419
809e7520234a added instance for class size
haftmann
parents: 21350
diff changeset
   651
      |> fold2 (fn (name, mx) => fn tvs => TypedefPackage.add_typedecls [(name, tvs, mx)])
809e7520234a added instance for class size
haftmann
parents: 21350
diff changeset
   652
           types_syntax tyvars
809e7520234a added instance for class size
haftmann
parents: 21350
diff changeset
   653
      |> fold (fn (_, (name, _, _)) => instance_size_class name) descr'
21045
66d6d1b0ddfa slight cleanup
haftmann
parents: 20820
diff changeset
   654
      |> add_path flat_names (space_implode "_" new_type_names)
5177
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   655
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   656
      (** primrec combinators **)
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   657
21045
66d6d1b0ddfa slight cleanup
haftmann
parents: 20820
diff changeset
   658
      |> specify_consts (map (fn ((name, T), T') =>
66d6d1b0ddfa slight cleanup
haftmann
parents: 20820
diff changeset
   659
           (name, reccomb_fn_Ts @ [T] ---> T', NoSyn)) (reccomb_names ~~ recTs ~~ rec_result_Ts))
5177
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   660
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   661
      (** case combinators **)
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   662
21045
66d6d1b0ddfa slight cleanup
haftmann
parents: 20820
diff changeset
   663
      |> specify_consts (map (fn ((name, T), Ts) =>
66d6d1b0ddfa slight cleanup
haftmann
parents: 20820
diff changeset
   664
           (name, Ts @ [T] ---> freeT, NoSyn)) (case_names ~~ newTs ~~ case_fn_Ts));
6305
4cbdb974220c Fixed bug in add_datatype_axm:
berghofe
parents: 6103
diff changeset
   665
19716
52c22fccdaaf add_datatype_axm: finalize specified consts;
wenzelm
parents: 19599
diff changeset
   666
    val reccomb_names' = map (Sign.full_name thy2') reccomb_names;
52c22fccdaaf add_datatype_axm: finalize specified consts;
wenzelm
parents: 19599
diff changeset
   667
    val case_names' = map (Sign.full_name thy2') case_names;
6305
4cbdb974220c Fixed bug in add_datatype_axm:
berghofe
parents: 6103
diff changeset
   668
21045
66d6d1b0ddfa slight cleanup
haftmann
parents: 20820
diff changeset
   669
    val thy2 = thy2'
5177
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   670
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   671
      (** size functions **)
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   672
21045
66d6d1b0ddfa slight cleanup
haftmann
parents: 20820
diff changeset
   673
      |> (if no_size then I else specify_consts (map (fn (s, T) =>
5177
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   674
        (Sign.base_name s, T --> HOLogic.natT, NoSyn))
21045
66d6d1b0ddfa slight cleanup
haftmann
parents: 20820
diff changeset
   675
          (size_names ~~ Library.drop (length (hd descr), recTs))))
5661
6ecb6ea25f19 - Changed structure of name spaces
berghofe
parents: 5578
diff changeset
   676
6ecb6ea25f19 - Changed structure of name spaces
berghofe
parents: 5578
diff changeset
   677
      (** constructors **)
6ecb6ea25f19 - Changed structure of name spaces
berghofe
parents: 5578
diff changeset
   678
21045
66d6d1b0ddfa slight cleanup
haftmann
parents: 20820
diff changeset
   679
      |> parent_path flat_names
66d6d1b0ddfa slight cleanup
haftmann
parents: 20820
diff changeset
   680
      |> fold (fn ((((_, (_, _, constrs)), T), tname),
66d6d1b0ddfa slight cleanup
haftmann
parents: 20820
diff changeset
   681
        constr_syntax') =>
66d6d1b0ddfa slight cleanup
haftmann
parents: 20820
diff changeset
   682
          add_path flat_names tname #>
19716
52c22fccdaaf add_datatype_axm: finalize specified consts;
wenzelm
parents: 19599
diff changeset
   683
            specify_consts (map (fn ((_, cargs), (cname, mx)) =>
5661
6ecb6ea25f19 - Changed structure of name spaces
berghofe
parents: 5578
diff changeset
   684
              (cname, map (typ_of_dtyp descr' sorts) cargs ---> T, mx))
21045
66d6d1b0ddfa slight cleanup
haftmann
parents: 20820
diff changeset
   685
                (constrs ~~ constr_syntax')) #>
66d6d1b0ddfa slight cleanup
haftmann
parents: 20820
diff changeset
   686
          parent_path flat_names)
5661
6ecb6ea25f19 - Changed structure of name spaces
berghofe
parents: 5578
diff changeset
   687
            (hd descr ~~ newTs ~~ new_type_names ~~ constr_syntax);
5177
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   688
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   689
    (**** introduction of axioms ****)
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   690
5661
6ecb6ea25f19 - Changed structure of name spaces
berghofe
parents: 5578
diff changeset
   691
    val rec_axs = DatatypeProp.make_primrecs new_type_names descr sorts thy2;
9739
8470c4662685 Improved names for size function.
berghofe
parents: 9714
diff changeset
   692
    val size_axs = if no_size then [] else DatatypeProp.make_size descr sorts thy2;
5661
6ecb6ea25f19 - Changed structure of name spaces
berghofe
parents: 5578
diff changeset
   693
18377
0e1d025d57b3 oriented result pairs in PureThy
haftmann
parents: 18319
diff changeset
   694
    val ((([induct], [rec_thms]), inject), thy3) =
0e1d025d57b3 oriented result pairs in PureThy
haftmann
parents: 18319
diff changeset
   695
      thy2
0e1d025d57b3 oriented result pairs in PureThy
haftmann
parents: 18319
diff changeset
   696
      |> Theory.add_path (space_implode "_" new_type_names)
20597
65fe827aa595 code generation 2 adjustments
haftmann
parents: 20328
diff changeset
   697
      |> add_axiom "induct" (DatatypeProp.make_ind descr sorts) [case_names_induct]
65fe827aa595 code generation 2 adjustments
haftmann
parents: 20328
diff changeset
   698
      ||>> add_axioms "recs" rec_axs []
65fe827aa595 code generation 2 adjustments
haftmann
parents: 20328
diff changeset
   699
      ||> (if no_size then I else add_axioms "size" size_axs [] #> snd)
18377
0e1d025d57b3 oriented result pairs in PureThy
haftmann
parents: 18319
diff changeset
   700
      ||> Theory.parent_path
0e1d025d57b3 oriented result pairs in PureThy
haftmann
parents: 18319
diff changeset
   701
      ||>> add_and_get_axiomss "inject" new_type_names
0e1d025d57b3 oriented result pairs in PureThy
haftmann
parents: 18319
diff changeset
   702
            (DatatypeProp.make_injs descr sorts);
16486
1a12cdb6ee6b get_thm(s): Name;
wenzelm
parents: 16430
diff changeset
   703
    val size_thms = if no_size then [] else get_thms thy3 (Name "size");
18377
0e1d025d57b3 oriented result pairs in PureThy
haftmann
parents: 18319
diff changeset
   704
    val (distinct, thy4) = add_and_get_axiomss "distinct" new_type_names
5177
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   705
      (DatatypeProp.make_distincts new_type_names descr sorts thy3) thy3;
8437
258281c43dea removed cases_of;
wenzelm
parents: 8405
diff changeset
   706
258281c43dea removed cases_of;
wenzelm
parents: 8405
diff changeset
   707
    val exhaust_ts = DatatypeProp.make_casedists descr sorts;
18377
0e1d025d57b3 oriented result pairs in PureThy
haftmann
parents: 18319
diff changeset
   708
    val (exhaustion, thy5) = add_and_get_axioms_atts "exhaust" new_type_names
20597
65fe827aa595 code generation 2 adjustments
haftmann
parents: 20328
diff changeset
   709
      exhaust_ts (map single case_names_exhausts) thy4;
18377
0e1d025d57b3 oriented result pairs in PureThy
haftmann
parents: 18319
diff changeset
   710
    val (case_thms, thy6) = add_and_get_axiomss "cases" new_type_names
5177
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   711
      (DatatypeProp.make_cases new_type_names descr sorts thy5) thy5;
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   712
    val (split_ts, split_asm_ts) = ListPair.unzip
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   713
      (DatatypeProp.make_splits new_type_names descr sorts thy6);
18377
0e1d025d57b3 oriented result pairs in PureThy
haftmann
parents: 18319
diff changeset
   714
    val (split, thy7) = add_and_get_axioms "split" new_type_names split_ts thy6;
0e1d025d57b3 oriented result pairs in PureThy
haftmann
parents: 18319
diff changeset
   715
    val (split_asm, thy8) = add_and_get_axioms "split_asm" new_type_names
5177
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   716
      split_asm_ts thy7;
18377
0e1d025d57b3 oriented result pairs in PureThy
haftmann
parents: 18319
diff changeset
   717
    val (nchotomys, thy9) = add_and_get_axioms "nchotomy" new_type_names
5177
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   718
      (DatatypeProp.make_nchotomys descr sorts) thy8;
18377
0e1d025d57b3 oriented result pairs in PureThy
haftmann
parents: 18319
diff changeset
   719
    val (case_congs, thy10) = add_and_get_axioms "case_cong" new_type_names
5177
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   720
      (DatatypeProp.make_case_congs new_type_names descr sorts thy9) thy9;
18377
0e1d025d57b3 oriented result pairs in PureThy
haftmann
parents: 18319
diff changeset
   721
    val (weak_case_congs, thy11) = add_and_get_axioms "weak_case_cong" new_type_names
8601
8fb3a81b4ccf added weak_case_cong feature
nipkow
parents: 8541
diff changeset
   722
      (DatatypeProp.make_weak_case_congs new_type_names descr sorts thy10) thy10;
8405
0255394a05da add_cases_induct: produce proper case names;
wenzelm
parents: 8325
diff changeset
   723
18319
c52b139ebde0 Added new component "sorts" to record datatype_info.
berghofe
parents: 18314
diff changeset
   724
    val dt_infos = map (make_dt_info descr' sorts induct reccomb_names' rec_thms)
6305
4cbdb974220c Fixed bug in add_datatype_axm:
berghofe
parents: 6103
diff changeset
   725
      ((0 upto length (hd descr) - 1) ~~ (hd descr) ~~ case_names' ~~ case_thms ~~
7015
85be09eb136c - Datatype package now also supports arbitrarily branching datatypes
berghofe
parents: 6851
diff changeset
   726
        exhaustion ~~ replicate (length (hd descr)) QuickAndDirty ~~ inject ~~
10121
fb9be005cc44 export get_datatypes_sg;
wenzelm
parents: 9747
diff changeset
   727
          nchotomys ~~ case_congs ~~ weak_case_congs);
5177
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   728
21045
66d6d1b0ddfa slight cleanup
haftmann
parents: 20820
diff changeset
   729
    val simps = flat (distinct @ inject @ case_thms) @ size_thms @ rec_thms;
9386
8800603d99f6 theorems foo.splits = foo.split foo.split_asm;
wenzelm
parents: 9149
diff changeset
   730
    val split_thms = split ~~ split_asm;
5177
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   731
18518
3b1dfa53e64f adaptions to changes in code generator
haftmann
parents: 18462
diff changeset
   732
    val thy12 =
3b1dfa53e64f adaptions to changes in code generator
haftmann
parents: 18462
diff changeset
   733
      thy11
3b1dfa53e64f adaptions to changes in code generator
haftmann
parents: 18462
diff changeset
   734
      |> Theory.add_advanced_trfuns ([], [], make_case_tr' case_names' (hd descr), [])
3b1dfa53e64f adaptions to changes in code generator
haftmann
parents: 18462
diff changeset
   735
      |> Theory.add_path (space_implode "_" new_type_names)
3b1dfa53e64f adaptions to changes in code generator
haftmann
parents: 18462
diff changeset
   736
      |> add_rules simps case_thms size_thms rec_thms inject distinct
18728
6790126ab5f6 simplified type attribute;
wenzelm
parents: 18708
diff changeset
   737
          weak_case_congs Simplifier.cong_add
18518
3b1dfa53e64f adaptions to changes in code generator
haftmann
parents: 18462
diff changeset
   738
      |> put_datatypes (fold Symtab.update dt_infos dt_info)
3b1dfa53e64f adaptions to changes in code generator
haftmann
parents: 18462
diff changeset
   739
      |> add_cases_induct dt_infos induct
3b1dfa53e64f adaptions to changes in code generator
haftmann
parents: 18462
diff changeset
   740
      |> Theory.parent_path
19599
a5c7eb37d14f added DatatypeHooks
haftmann
parents: 19539
diff changeset
   741
      |> store_thmss "splits" new_type_names (map (fn (x, y) => [x, y]) split_thms)
a5c7eb37d14f added DatatypeHooks
haftmann
parents: 19539
diff changeset
   742
      |> snd
18518
3b1dfa53e64f adaptions to changes in code generator
haftmann
parents: 18462
diff changeset
   743
      |> DatatypeRealizer.add_dt_realizers sorts (map snd dt_infos)
21251
94e77628a47d renamed DatatypeHooks.invoke to all
haftmann
parents: 21243
diff changeset
   744
      |> DatatypeHooks.all (map fst dt_infos);
5177
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   745
  in
18008
f193815cab2c swapped add_datatype result
haftmann
parents: 17956
diff changeset
   746
    ({distinct = distinct,
5177
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   747
      inject = inject,
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   748
      exhaustion = exhaustion,
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   749
      rec_thms = rec_thms,
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   750
      case_thms = case_thms,
9386
8800603d99f6 theorems foo.splits = foo.split foo.split_asm;
wenzelm
parents: 9149
diff changeset
   751
      split_thms = split_thms,
5177
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   752
      induction = induct,
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   753
      size = size_thms,
18008
f193815cab2c swapped add_datatype result
haftmann
parents: 17956
diff changeset
   754
      simps = simps}, thy12)
5177
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   755
  end;
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   756
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   757
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   758
(******************* definitional introduction of datatypes *******************)
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   759
8437
258281c43dea removed cases_of;
wenzelm
parents: 8405
diff changeset
   760
fun add_datatype_def flat_names new_type_names descr sorts types_syntax constr_syntax dt_info
258281c43dea removed cases_of;
wenzelm
parents: 8405
diff changeset
   761
    case_names_induct case_names_exhausts thy =
5177
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   762
  let
6360
83573ae0f22c outer syntax for 'datatype';
wenzelm
parents: 6305
diff changeset
   763
    val _ = message ("Proofs for datatype(s) " ^ commas_quote new_type_names);
5177
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   764
18314
4595eb4627fa oriented pairs theory * 'a to 'a * theory
haftmann
parents: 18008
diff changeset
   765
    val ((inject, distinct, dist_rewrites, simproc_dists, induct), thy2) = thy |>
5661
6ecb6ea25f19 - Changed structure of name spaces
berghofe
parents: 5578
diff changeset
   766
      DatatypeRepProofs.representation_proofs flat_names dt_info new_type_names descr sorts
8437
258281c43dea removed cases_of;
wenzelm
parents: 8405
diff changeset
   767
        types_syntax constr_syntax case_names_induct;
5177
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   768
18314
4595eb4627fa oriented pairs theory * 'a to 'a * theory
haftmann
parents: 18008
diff changeset
   769
    val (casedist_thms, thy3) = DatatypeAbsProofs.prove_casedist_thms new_type_names descr
8437
258281c43dea removed cases_of;
wenzelm
parents: 8405
diff changeset
   770
      sorts induct case_names_exhausts thy2;
18314
4595eb4627fa oriented pairs theory * 'a to 'a * theory
haftmann
parents: 18008
diff changeset
   771
    val ((reccomb_names, rec_thms), thy4) = DatatypeAbsProofs.prove_primrec_thms
20054
24d176b8f240 distinct simproc/simpset: proper context;
wenzelm
parents: 19925
diff changeset
   772
      flat_names new_type_names descr sorts dt_info inject dist_rewrites
24d176b8f240 distinct simproc/simpset: proper context;
wenzelm
parents: 19925
diff changeset
   773
      (Simplifier.theory_context thy3 dist_ss) induct thy3;
18314
4595eb4627fa oriented pairs theory * 'a to 'a * theory
haftmann
parents: 18008
diff changeset
   774
    val ((case_thms, case_names), thy6) = DatatypeAbsProofs.prove_case_thms
5661
6ecb6ea25f19 - Changed structure of name spaces
berghofe
parents: 5578
diff changeset
   775
      flat_names new_type_names descr sorts reccomb_names rec_thms thy4;
18314
4595eb4627fa oriented pairs theory * 'a to 'a * theory
haftmann
parents: 18008
diff changeset
   776
    val (split_thms, thy7) = DatatypeAbsProofs.prove_split_thms new_type_names
5177
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   777
      descr sorts inject dist_rewrites casedist_thms case_thms thy6;
18314
4595eb4627fa oriented pairs theory * 'a to 'a * theory
haftmann
parents: 18008
diff changeset
   778
    val (nchotomys, thy8) = DatatypeAbsProofs.prove_nchotomys new_type_names
5177
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   779
      descr sorts casedist_thms thy7;
18314
4595eb4627fa oriented pairs theory * 'a to 'a * theory
haftmann
parents: 18008
diff changeset
   780
    val (case_congs, thy9) = DatatypeAbsProofs.prove_case_congs new_type_names
5177
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   781
      descr sorts nchotomys case_thms thy8;
18314
4595eb4627fa oriented pairs theory * 'a to 'a * theory
haftmann
parents: 18008
diff changeset
   782
    val (weak_case_congs, thy10) = DatatypeAbsProofs.prove_weak_case_congs new_type_names
8601
8fb3a81b4ccf added weak_case_cong feature
nipkow
parents: 8541
diff changeset
   783
      descr sorts thy9;
18314
4595eb4627fa oriented pairs theory * 'a to 'a * theory
haftmann
parents: 18008
diff changeset
   784
    val (size_thms, thy11) = DatatypeAbsProofs.prove_size_thms flat_names new_type_names
8601
8fb3a81b4ccf added weak_case_cong feature
nipkow
parents: 8541
diff changeset
   785
      descr sorts reccomb_names rec_thms thy10;
5177
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   786
21045
66d6d1b0ddfa slight cleanup
haftmann
parents: 20820
diff changeset
   787
    val dt_infos = map (make_dt_info (flat descr) sorts induct reccomb_names rec_thms)
5177
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   788
      ((0 upto length (hd descr) - 1) ~~ (hd descr) ~~ case_names ~~ case_thms ~~
10121
fb9be005cc44 export get_datatypes_sg;
wenzelm
parents: 9747
diff changeset
   789
        casedist_thms ~~ simproc_dists ~~ inject ~~ nchotomys ~~ case_congs ~~ weak_case_congs);
5177
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   790
21045
66d6d1b0ddfa slight cleanup
haftmann
parents: 20820
diff changeset
   791
    val simps = flat (distinct @ inject @ case_thms) @ size_thms @ rec_thms;
5177
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   792
18518
3b1dfa53e64f adaptions to changes in code generator
haftmann
parents: 18462
diff changeset
   793
    val thy12 =
3b1dfa53e64f adaptions to changes in code generator
haftmann
parents: 18462
diff changeset
   794
      thy11
3b1dfa53e64f adaptions to changes in code generator
haftmann
parents: 18462
diff changeset
   795
      |> Theory.add_advanced_trfuns ([], [], make_case_tr' case_names (hd descr), [])
3b1dfa53e64f adaptions to changes in code generator
haftmann
parents: 18462
diff changeset
   796
      |> Theory.add_path (space_implode "_" new_type_names)
3b1dfa53e64f adaptions to changes in code generator
haftmann
parents: 18462
diff changeset
   797
      |> add_rules simps case_thms size_thms rec_thms inject distinct
18728
6790126ab5f6 simplified type attribute;
wenzelm
parents: 18708
diff changeset
   798
          weak_case_congs (Simplifier.attrib (op addcongs))
18518
3b1dfa53e64f adaptions to changes in code generator
haftmann
parents: 18462
diff changeset
   799
      |> put_datatypes (fold Symtab.update dt_infos dt_info)
3b1dfa53e64f adaptions to changes in code generator
haftmann
parents: 18462
diff changeset
   800
      |> add_cases_induct dt_infos induct
3b1dfa53e64f adaptions to changes in code generator
haftmann
parents: 18462
diff changeset
   801
      |> Theory.parent_path
3b1dfa53e64f adaptions to changes in code generator
haftmann
parents: 18462
diff changeset
   802
      |> store_thmss "splits" new_type_names (map (fn (x, y) => [x, y]) split_thms) |> snd
3b1dfa53e64f adaptions to changes in code generator
haftmann
parents: 18462
diff changeset
   803
      |> DatatypeRealizer.add_dt_realizers sorts (map snd dt_infos)
21251
94e77628a47d renamed DatatypeHooks.invoke to all
haftmann
parents: 21243
diff changeset
   804
      |> DatatypeHooks.all (map fst dt_infos);
5177
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   805
  in
18008
f193815cab2c swapped add_datatype result
haftmann
parents: 17956
diff changeset
   806
    ({distinct = distinct,
5177
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   807
      inject = inject,
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   808
      exhaustion = casedist_thms,
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   809
      rec_thms = rec_thms,
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   810
      case_thms = case_thms,
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   811
      split_thms = split_thms,
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   812
      induction = induct,
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   813
      size = size_thms,
18008
f193815cab2c swapped add_datatype result
haftmann
parents: 17956
diff changeset
   814
      simps = simps}, thy12)
5177
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   815
  end;
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   816
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   817
6385
5a6570458d9e rep_datatype: '_i' version, attributes, outer syntax;
wenzelm
parents: 6360
diff changeset
   818
(*********************** declare existing type as datatype *********************)
5177
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   819
6385
5a6570458d9e rep_datatype: '_i' version, attributes, outer syntax;
wenzelm
parents: 6360
diff changeset
   820
fun gen_rep_datatype apply_theorems alt_names raw_distinct raw_inject raw_induction thy0 =
5177
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   821
  let
18418
bf448d999b7e re-arranged tuples (theory * 'a) to ('a * theory) in Pure
haftmann
parents: 18377
diff changeset
   822
    val (((distinct, inject), [induction]), thy1) =
bf448d999b7e re-arranged tuples (theory * 'a) to ('a * theory) in Pure
haftmann
parents: 18377
diff changeset
   823
      thy0
bf448d999b7e re-arranged tuples (theory * 'a) to ('a * theory) in Pure
haftmann
parents: 18377
diff changeset
   824
      |> fold_map apply_theorems raw_distinct
bf448d999b7e re-arranged tuples (theory * 'a) to ('a * theory) in Pure
haftmann
parents: 18377
diff changeset
   825
      ||>> fold_map apply_theorems raw_inject
bf448d999b7e re-arranged tuples (theory * 'a) to ('a * theory) in Pure
haftmann
parents: 18377
diff changeset
   826
      ||>> apply_theorems [raw_induction];
5177
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   827
20218
be3bfb0699ba Variable.import(T): result includes fixed types/terms;
wenzelm
parents: 20177
diff changeset
   828
    val ((_, [induction']), _) = Variable.importT [induction] (Variable.thm_context induction);
5177
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   829
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   830
    fun err t = error ("Ill-formed predicate in induction rule: " ^
20715
c1f16b427d86 handling of \<^const> syntax for case; explicit case names for induction rules for rep_datatype
haftmann
parents: 20597
diff changeset
   831
      Sign.string_of_term thy1 t);
5177
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   832
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   833
    fun get_typ (t as _ $ Var (_, Type (tname, Ts))) =
7015
85be09eb136c - Datatype package now also supports arbitrarily branching datatypes
berghofe
parents: 6851
diff changeset
   834
          ((tname, map dest_TFree Ts) handle TERM _ => err t)
5177
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   835
      | get_typ t = err t;
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   836
8437
258281c43dea removed cases_of;
wenzelm
parents: 8405
diff changeset
   837
    val dtnames = map get_typ (HOLogic.dest_conj (HOLogic.dest_Trueprop (Thm.concl_of induction')));
15570
8d8c70b41bab Move towards standard functions.
skalberg
parents: 15531
diff changeset
   838
    val new_type_names = getOpt (alt_names, map fst dtnames);
5177
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   839
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   840
    fun get_constr t = (case Logic.strip_assums_concl t of
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   841
        _ $ (_ $ t') => (case head_of t' of
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   842
            Const (cname, cT) => (case strip_type cT of
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   843
                (Ts, Type (tname, _)) => (tname, (cname, map (dtyp_of_typ dtnames) Ts))
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   844
              | _ => err t)
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   845
          | _ => err t)
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   846
      | _ => err t);
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   847
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   848
    fun make_dt_spec [] _ _ = []
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   849
      | make_dt_spec ((tname, tvs)::dtnames') i constrs =
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   850
          let val (constrs', constrs'') = take_prefix (equal tname o fst) constrs
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   851
          in (i, (tname, map DtTFree tvs, map snd constrs'))::
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   852
            (make_dt_spec dtnames' (i + 1) constrs'')
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   853
          end;
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   854
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   855
    val descr = make_dt_spec dtnames 0 (map get_constr (prems_of induction'));
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   856
    val sorts = add_term_tfrees (concl_of induction', []);
6385
5a6570458d9e rep_datatype: '_i' version, attributes, outer syntax;
wenzelm
parents: 6360
diff changeset
   857
    val dt_info = get_datatypes thy1;
5177
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   858
21419
809e7520234a added instance for class size
haftmann
parents: 21350
diff changeset
   859
    val (case_names_induct, case_names_exhausts) =
809e7520234a added instance for class size
haftmann
parents: 21350
diff changeset
   860
      (mk_case_names_induct descr, mk_case_names_exhausts descr (map #1 dtnames));
8437
258281c43dea removed cases_of;
wenzelm
parents: 8405
diff changeset
   861
6427
fd36b2e7d80e tuned messages;
wenzelm
parents: 6423
diff changeset
   862
    val _ = message ("Proofs for datatype(s) " ^ commas_quote new_type_names);
5177
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   863
18314
4595eb4627fa oriented pairs theory * 'a to 'a * theory
haftmann
parents: 18008
diff changeset
   864
    val (casedist_thms, thy2) = thy1 |>
8437
258281c43dea removed cases_of;
wenzelm
parents: 8405
diff changeset
   865
      DatatypeAbsProofs.prove_casedist_thms new_type_names [descr] sorts induction
258281c43dea removed cases_of;
wenzelm
parents: 8405
diff changeset
   866
        case_names_exhausts;
18314
4595eb4627fa oriented pairs theory * 'a to 'a * theory
haftmann
parents: 18008
diff changeset
   867
    val ((reccomb_names, rec_thms), thy3) = DatatypeAbsProofs.prove_primrec_thms
20054
24d176b8f240 distinct simproc/simpset: proper context;
wenzelm
parents: 19925
diff changeset
   868
      false new_type_names [descr] sorts dt_info inject distinct
24d176b8f240 distinct simproc/simpset: proper context;
wenzelm
parents: 19925
diff changeset
   869
      (Simplifier.theory_context thy2 dist_ss) induction thy2;
18314
4595eb4627fa oriented pairs theory * 'a to 'a * theory
haftmann
parents: 18008
diff changeset
   870
    val ((case_thms, case_names), thy4) = DatatypeAbsProofs.prove_case_thms false
5177
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   871
      new_type_names [descr] sorts reccomb_names rec_thms thy3;
18314
4595eb4627fa oriented pairs theory * 'a to 'a * theory
haftmann
parents: 18008
diff changeset
   872
    val (split_thms, thy5) = DatatypeAbsProofs.prove_split_thms
5177
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   873
      new_type_names [descr] sorts inject distinct casedist_thms case_thms thy4;
18314
4595eb4627fa oriented pairs theory * 'a to 'a * theory
haftmann
parents: 18008
diff changeset
   874
    val (nchotomys, thy6) = DatatypeAbsProofs.prove_nchotomys new_type_names
5177
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   875
      [descr] sorts casedist_thms thy5;
18314
4595eb4627fa oriented pairs theory * 'a to 'a * theory
haftmann
parents: 18008
diff changeset
   876
    val (case_congs, thy7) = DatatypeAbsProofs.prove_case_congs new_type_names
5177
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   877
      [descr] sorts nchotomys case_thms thy6;
18314
4595eb4627fa oriented pairs theory * 'a to 'a * theory
haftmann
parents: 18008
diff changeset
   878
    val (weak_case_congs, thy8) = DatatypeAbsProofs.prove_weak_case_congs new_type_names
8601
8fb3a81b4ccf added weak_case_cong feature
nipkow
parents: 8541
diff changeset
   879
      [descr] sorts thy7;
18314
4595eb4627fa oriented pairs theory * 'a to 'a * theory
haftmann
parents: 18008
diff changeset
   880
    val (size_thms, thy9) =
21459
20c2ddee8bc5 no explicit check for theory Nat
haftmann
parents: 21419
diff changeset
   881
      DatatypeAbsProofs.prove_size_thms false new_type_names
20c2ddee8bc5 no explicit check for theory Nat
haftmann
parents: 21419
diff changeset
   882
        [descr] sorts reccomb_names rec_thms thy8;
5177
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   883
18377
0e1d025d57b3 oriented result pairs in PureThy
haftmann
parents: 18319
diff changeset
   884
    val ((_, [induction']), thy10) =
0e1d025d57b3 oriented result pairs in PureThy
haftmann
parents: 18319
diff changeset
   885
      thy9
0e1d025d57b3 oriented result pairs in PureThy
haftmann
parents: 18319
diff changeset
   886
      |> store_thmss "inject" new_type_names inject
0e1d025d57b3 oriented result pairs in PureThy
haftmann
parents: 18319
diff changeset
   887
      ||>> store_thmss "distinct" new_type_names distinct
0e1d025d57b3 oriented result pairs in PureThy
haftmann
parents: 18319
diff changeset
   888
      ||> Theory.add_path (space_implode "_" new_type_names)
0e1d025d57b3 oriented result pairs in PureThy
haftmann
parents: 18319
diff changeset
   889
      ||>> PureThy.add_thms [(("induct", induction), [case_names_induct])];
9149
a126a40cba76 export proper induction rule;
wenzelm
parents: 8697
diff changeset
   890
18319
c52b139ebde0 Added new component "sorts" to record datatype_info.
berghofe
parents: 18314
diff changeset
   891
    val dt_infos = map (make_dt_info descr sorts induction' reccomb_names rec_thms)
10121
fb9be005cc44 export get_datatypes_sg;
wenzelm
parents: 9747
diff changeset
   892
      ((0 upto length descr - 1) ~~ descr ~~ case_names ~~ case_thms ~~ casedist_thms ~~
fb9be005cc44 export get_datatypes_sg;
wenzelm
parents: 9747
diff changeset
   893
        map FewConstrs distinct ~~ inject ~~ nchotomys ~~ case_congs ~~ weak_case_congs);
5177
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   894
21045
66d6d1b0ddfa slight cleanup
haftmann
parents: 20820
diff changeset
   895
    val simps = flat (distinct @ inject @ case_thms) @ size_thms @ rec_thms;
5177
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   896
19599
a5c7eb37d14f added DatatypeHooks
haftmann
parents: 19539
diff changeset
   897
    val thy11 =
a5c7eb37d14f added DatatypeHooks
haftmann
parents: 19539
diff changeset
   898
      thy10
a5c7eb37d14f added DatatypeHooks
haftmann
parents: 19539
diff changeset
   899
      |> Theory.add_advanced_trfuns ([], [], make_case_tr' case_names descr, [])
a5c7eb37d14f added DatatypeHooks
haftmann
parents: 19539
diff changeset
   900
      |> add_rules simps case_thms size_thms rec_thms inject distinct
a5c7eb37d14f added DatatypeHooks
haftmann
parents: 19539
diff changeset
   901
           weak_case_congs (Simplifier.attrib (op addcongs))
a5c7eb37d14f added DatatypeHooks
haftmann
parents: 19539
diff changeset
   902
      |> put_datatypes (fold Symtab.update dt_infos dt_info)
a5c7eb37d14f added DatatypeHooks
haftmann
parents: 19539
diff changeset
   903
      |> add_cases_induct dt_infos induction'
a5c7eb37d14f added DatatypeHooks
haftmann
parents: 19539
diff changeset
   904
      |> Theory.parent_path
a5c7eb37d14f added DatatypeHooks
haftmann
parents: 19539
diff changeset
   905
      |> store_thmss "splits" new_type_names (map (fn (x, y) => [x, y]) split_thms)
a5c7eb37d14f added DatatypeHooks
haftmann
parents: 19539
diff changeset
   906
      |> snd
a5c7eb37d14f added DatatypeHooks
haftmann
parents: 19539
diff changeset
   907
      |> DatatypeRealizer.add_dt_realizers sorts (map snd dt_infos)
21251
94e77628a47d renamed DatatypeHooks.invoke to all
haftmann
parents: 21243
diff changeset
   908
      |> DatatypeHooks.all (map fst dt_infos);
5177
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   909
  in
18008
f193815cab2c swapped add_datatype result
haftmann
parents: 17956
diff changeset
   910
    ({distinct = distinct,
5177
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   911
      inject = inject,
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   912
      exhaustion = casedist_thms,
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   913
      rec_thms = rec_thms,
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   914
      case_thms = case_thms,
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   915
      split_thms = split_thms,
8437
258281c43dea removed cases_of;
wenzelm
parents: 8405
diff changeset
   916
      induction = induction',
5177
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   917
      size = size_thms,
18008
f193815cab2c swapped add_datatype result
haftmann
parents: 17956
diff changeset
   918
      simps = simps}, thy11)
5177
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   919
  end;
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   920
21350
6e58289b6685 incorporated IsarThy into IsarCmd;
wenzelm
parents: 21253
diff changeset
   921
val rep_datatype = gen_rep_datatype IsarCmd.apply_theorems;
6e58289b6685 incorporated IsarThy into IsarCmd;
wenzelm
parents: 21253
diff changeset
   922
val rep_datatype_i = gen_rep_datatype IsarCmd.apply_theorems_i;
6385
5a6570458d9e rep_datatype: '_i' version, attributes, outer syntax;
wenzelm
parents: 6360
diff changeset
   923
5177
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   924
11958
2ece34b9fd8e Isar: fixed rep_datatype args;
wenzelm
parents: 11805
diff changeset
   925
5177
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   926
(******************************** add datatype ********************************)
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   927
14887
4938ce4ef295 Added exception Datatype_Empty.
berghofe
parents: 14799
diff changeset
   928
fun gen_add_datatype prep_typ err flat_names new_type_names dts thy =
5177
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   929
  let
20820
58693343905f removed obsolete Datatype_Universe.thy (cf. Datatype.thy);
wenzelm
parents: 20715
diff changeset
   930
    val _ = Theory.requires thy "Datatype" "datatype definitions";
5177
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   931
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   932
    (* this theory is used just for parsing *)
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   933
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   934
    val tmp_thy = thy |>
5892
e5e44cc54eb2 Attribute.tthms_of;
wenzelm
parents: 5720
diff changeset
   935
      Theory.copy |>
5177
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   936
      Theory.add_types (map (fn (tvs, tname, mx, _) =>
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   937
        (tname, length tvs, mx)) dts);
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   938
5661
6ecb6ea25f19 - Changed structure of name spaces
berghofe
parents: 5578
diff changeset
   939
    val (tyvars, _, _, _)::_ = dts;
5177
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   940
    val (new_dts, types_syntax) = ListPair.unzip (map (fn (tvs, tname, mx, _) =>
20597
65fe827aa595 code generation 2 adjustments
haftmann
parents: 20328
diff changeset
   941
      let val full_tname = Sign.full_name tmp_thy (Syntax.type_name tname mx)
18964
67f572e03236 renamed gen_duplicates to duplicates;
wenzelm
parents: 18963
diff changeset
   942
      in (case duplicates (op =) tvs of
5661
6ecb6ea25f19 - Changed structure of name spaces
berghofe
parents: 5578
diff changeset
   943
            [] => if eq_set (tyvars, tvs) then ((full_tname, tvs), (tname, mx))
6ecb6ea25f19 - Changed structure of name spaces
berghofe
parents: 5578
diff changeset
   944
                  else error ("Mutually recursive datatypes must have same type parameters")
5177
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   945
          | dups => error ("Duplicate parameter(s) for datatype " ^ full_tname ^
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   946
              " : " ^ commas dups))
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   947
      end) dts);
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   948
18964
67f572e03236 renamed gen_duplicates to duplicates;
wenzelm
parents: 18963
diff changeset
   949
    val _ = (case duplicates (op =) (map fst new_dts) @ duplicates (op =) new_type_names of
5177
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   950
      [] => () | dups => error ("Duplicate datatypes: " ^ commas dups));
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   951
21045
66d6d1b0ddfa slight cleanup
haftmann
parents: 20820
diff changeset
   952
    fun prep_dt_spec (tvs, tname, mx, constrs) (dts', constr_syntax, sorts, i) =
5177
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   953
      let
21045
66d6d1b0ddfa slight cleanup
haftmann
parents: 20820
diff changeset
   954
        fun prep_constr (cname, cargs, mx') (constrs, constr_syntax', sorts') =
5279
cba6a96f5812 Improved well-formedness check.
berghofe
parents: 5177
diff changeset
   955
          let
20597
65fe827aa595 code generation 2 adjustments
haftmann
parents: 20328
diff changeset
   956
            val (cargs', sorts'') = Library.foldl (prep_typ tmp_thy) (([], sorts'), cargs);
21045
66d6d1b0ddfa slight cleanup
haftmann
parents: 20820
diff changeset
   957
            val _ = (case fold (curry add_typ_tfree_names) cargs' [] \\ tvs of
5279
cba6a96f5812 Improved well-formedness check.
berghofe
parents: 5177
diff changeset
   958
                [] => ()
cba6a96f5812 Improved well-formedness check.
berghofe
parents: 5177
diff changeset
   959
              | vs => error ("Extra type variables on rhs: " ^ commas vs))
20597
65fe827aa595 code generation 2 adjustments
haftmann
parents: 20328
diff changeset
   960
          in (constrs @ [((if flat_names then Sign.full_name tmp_thy else
65fe827aa595 code generation 2 adjustments
haftmann
parents: 20328
diff changeset
   961
                Sign.full_name_path tmp_thy tname) (Syntax.const_name cname mx'),
5177
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   962
                   map (dtyp_of_typ new_dts) cargs')],
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   963
              constr_syntax' @ [(cname, mx')], sorts'')
18678
dd0c569fa43d sane ERROR handling;
wenzelm
parents: 18643
diff changeset
   964
          end handle ERROR msg =>
dd0c569fa43d sane ERROR handling;
wenzelm
parents: 18643
diff changeset
   965
            cat_error msg ("The error above occured in constructor " ^ cname ^
5177
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   966
              " of datatype " ^ tname);
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   967
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   968
        val (constrs', constr_syntax', sorts') =
21045
66d6d1b0ddfa slight cleanup
haftmann
parents: 20820
diff changeset
   969
          fold prep_constr constrs ([], [], sorts)
5177
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   970
8405
0255394a05da add_cases_induct: produce proper case names;
wenzelm
parents: 8325
diff changeset
   971
      in
18964
67f572e03236 renamed gen_duplicates to duplicates;
wenzelm
parents: 18963
diff changeset
   972
        case duplicates (op =) (map fst constrs') of
5177
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   973
           [] =>
20597
65fe827aa595 code generation 2 adjustments
haftmann
parents: 20328
diff changeset
   974
             (dts' @ [(i, (Sign.full_name tmp_thy (Syntax.type_name tname mx),
5177
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   975
                map DtTFree tvs, constrs'))],
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   976
              constr_syntax @ [constr_syntax'], sorts', i + 1)
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   977
         | dups => error ("Duplicate constructors " ^ commas dups ^
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   978
             " in datatype " ^ tname)
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   979
      end;
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   980
21045
66d6d1b0ddfa slight cleanup
haftmann
parents: 20820
diff changeset
   981
    val (dts', constr_syntax, sorts', i) = fold prep_dt_spec dts ([], [], [], 0);
20597
65fe827aa595 code generation 2 adjustments
haftmann
parents: 20328
diff changeset
   982
    val sorts = sorts' @ (map (rpair (Sign.defaultS tmp_thy)) (tyvars \\ map fst sorts'));
5177
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   983
    val dt_info = get_datatypes thy;
20597
65fe827aa595 code generation 2 adjustments
haftmann
parents: 20328
diff changeset
   984
    val (descr, _) = unfold_datatypes tmp_thy dts' sorts dt_info dts' i;
14887
4938ce4ef295 Added exception Datatype_Empty.
berghofe
parents: 14799
diff changeset
   985
    val _ = check_nonempty descr handle (exn as Datatype_Empty s) =>
15661
9ef583b08647 reverted renaming of Some/None in comments and strings;
wenzelm
parents: 15574
diff changeset
   986
      if err then error ("Nonemptiness check failed for datatype " ^ s)
14887
4938ce4ef295 Added exception Datatype_Empty.
berghofe
parents: 14799
diff changeset
   987
      else raise exn;
5177
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   988
21045
66d6d1b0ddfa slight cleanup
haftmann
parents: 20820
diff changeset
   989
    val descr' = flat descr;
8437
258281c43dea removed cases_of;
wenzelm
parents: 8405
diff changeset
   990
    val case_names_induct = mk_case_names_induct descr';
258281c43dea removed cases_of;
wenzelm
parents: 8405
diff changeset
   991
    val case_names_exhausts = mk_case_names_exhausts descr' (map #1 new_dts);
5177
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   992
  in
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   993
    (if (!quick_and_dirty) then add_datatype_axm else add_datatype_def)
8437
258281c43dea removed cases_of;
wenzelm
parents: 8405
diff changeset
   994
      flat_names new_type_names descr sorts types_syntax constr_syntax dt_info
258281c43dea removed cases_of;
wenzelm
parents: 8405
diff changeset
   995
      case_names_induct case_names_exhausts thy
5177
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   996
  end;
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   997
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
   998
val add_datatype_i = gen_add_datatype cert_typ;
14887
4938ce4ef295 Added exception Datatype_Empty.
berghofe
parents: 14799
diff changeset
   999
val add_datatype = gen_add_datatype read_typ true;
5177
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
  1000
6360
83573ae0f22c outer syntax for 'datatype';
wenzelm
parents: 6305
diff changeset
  1001
18451
5ff0244e25e8 slight clean ups
haftmann
parents: 18418
diff changeset
  1002
6360
83573ae0f22c outer syntax for 'datatype';
wenzelm
parents: 6305
diff changeset
  1003
(** package setup **)
83573ae0f22c outer syntax for 'datatype';
wenzelm
parents: 6305
diff changeset
  1004
83573ae0f22c outer syntax for 'datatype';
wenzelm
parents: 6305
diff changeset
  1005
(* setup theory *)
83573ae0f22c outer syntax for 'datatype';
wenzelm
parents: 6305
diff changeset
  1006
18708
4b3dadb4fe33 setup: theory -> theory;
wenzelm
parents: 18702
diff changeset
  1007
val setup =
4b3dadb4fe33 setup: theory -> theory;
wenzelm
parents: 18702
diff changeset
  1008
  DatatypesData.init #> Method.add_methods tactic_emulations #> simproc_setup #> trfun_setup;
6360
83573ae0f22c outer syntax for 'datatype';
wenzelm
parents: 6305
diff changeset
  1009
83573ae0f22c outer syntax for 'datatype';
wenzelm
parents: 6305
diff changeset
  1010
83573ae0f22c outer syntax for 'datatype';
wenzelm
parents: 6305
diff changeset
  1011
(* outer syntax *)
83573ae0f22c outer syntax for 'datatype';
wenzelm
parents: 6305
diff changeset
  1012
17057
0934ac31985f OuterKeyword;
wenzelm
parents: 16973
diff changeset
  1013
local structure P = OuterParse and K = OuterKeyword in
6360
83573ae0f22c outer syntax for 'datatype';
wenzelm
parents: 6305
diff changeset
  1014
83573ae0f22c outer syntax for 'datatype';
wenzelm
parents: 6305
diff changeset
  1015
val datatype_decl =
6723
f342449d73ca outer syntax keyword classification;
wenzelm
parents: 6556
diff changeset
  1016
  Scan.option (P.$$$ "(" |-- P.name --| P.$$$ ")") -- P.type_args -- P.name -- P.opt_infix --
12876
a70df1e5bf10 got rid of explicit marginal comments (now stripped earlier from input);
wenzelm
parents: 12708
diff changeset
  1017
    (P.$$$ "=" |-- P.enum1 "|" (P.name -- Scan.repeat P.typ -- P.opt_mixfix));
6360
83573ae0f22c outer syntax for 'datatype';
wenzelm
parents: 6305
diff changeset
  1018
83573ae0f22c outer syntax for 'datatype';
wenzelm
parents: 6305
diff changeset
  1019
fun mk_datatype args =
83573ae0f22c outer syntax for 'datatype';
wenzelm
parents: 6305
diff changeset
  1020
  let
15531
08c8dad8e399 Deleted Library.option type.
skalberg
parents: 15457
diff changeset
  1021
    val names = map (fn ((((NONE, _), t), _), _) => t | ((((SOME t, _), _), _), _) => t) args;
12876
a70df1e5bf10 got rid of explicit marginal comments (now stripped earlier from input);
wenzelm
parents: 12708
diff changeset
  1022
    val specs = map (fn ((((_, vs), t), mx), cons) =>
a70df1e5bf10 got rid of explicit marginal comments (now stripped earlier from input);
wenzelm
parents: 12708
diff changeset
  1023
      (vs, t, mx, map (fn ((x, y), z) => (x, y, z)) cons)) args;
18008
f193815cab2c swapped add_datatype result
haftmann
parents: 17956
diff changeset
  1024
  in snd o add_datatype false names specs end;
6360
83573ae0f22c outer syntax for 'datatype';
wenzelm
parents: 6305
diff changeset
  1025
83573ae0f22c outer syntax for 'datatype';
wenzelm
parents: 6305
diff changeset
  1026
val datatypeP =
6723
f342449d73ca outer syntax keyword classification;
wenzelm
parents: 6556
diff changeset
  1027
  OuterSyntax.command "datatype" "define inductive datatypes" K.thy_decl
f342449d73ca outer syntax keyword classification;
wenzelm
parents: 6556
diff changeset
  1028
    (P.and_list1 datatype_decl >> (Toplevel.theory o mk_datatype));
6360
83573ae0f22c outer syntax for 'datatype';
wenzelm
parents: 6305
diff changeset
  1029
6385
5a6570458d9e rep_datatype: '_i' version, attributes, outer syntax;
wenzelm
parents: 6360
diff changeset
  1030
5a6570458d9e rep_datatype: '_i' version, attributes, outer syntax;
wenzelm
parents: 6360
diff changeset
  1031
val rep_datatype_decl =
6723
f342449d73ca outer syntax keyword classification;
wenzelm
parents: 6556
diff changeset
  1032
  Scan.option (Scan.repeat1 P.name) --
22101
6d13239d5f52 moved parts of OuterParse to SpecParse;
wenzelm
parents: 21772
diff changeset
  1033
    Scan.optional (P.$$$ "distinct" |-- P.!!! (P.and_list1 SpecParse.xthms1)) [[]] --
6d13239d5f52 moved parts of OuterParse to SpecParse;
wenzelm
parents: 21772
diff changeset
  1034
    Scan.optional (P.$$$ "inject" |-- P.!!! (P.and_list1 SpecParse.xthms1)) [[]] --
6d13239d5f52 moved parts of OuterParse to SpecParse;
wenzelm
parents: 21772
diff changeset
  1035
    (P.$$$ "induction" |-- P.!!! SpecParse.xthm);
6385
5a6570458d9e rep_datatype: '_i' version, attributes, outer syntax;
wenzelm
parents: 6360
diff changeset
  1036
18008
f193815cab2c swapped add_datatype result
haftmann
parents: 17956
diff changeset
  1037
fun mk_rep_datatype (((opt_ts, dss), iss), ind) = #2 o rep_datatype opt_ts dss iss ind;
6385
5a6570458d9e rep_datatype: '_i' version, attributes, outer syntax;
wenzelm
parents: 6360
diff changeset
  1038
5a6570458d9e rep_datatype: '_i' version, attributes, outer syntax;
wenzelm
parents: 6360
diff changeset
  1039
val rep_datatypeP =
6723
f342449d73ca outer syntax keyword classification;
wenzelm
parents: 6556
diff changeset
  1040
  OuterSyntax.command "rep_datatype" "represent existing types inductively" K.thy_decl
6385
5a6570458d9e rep_datatype: '_i' version, attributes, outer syntax;
wenzelm
parents: 6360
diff changeset
  1041
    (rep_datatype_decl >> (Toplevel.theory o mk_rep_datatype));
5a6570458d9e rep_datatype: '_i' version, attributes, outer syntax;
wenzelm
parents: 6360
diff changeset
  1042
5a6570458d9e rep_datatype: '_i' version, attributes, outer syntax;
wenzelm
parents: 6360
diff changeset
  1043
6479
b0448cab1b1e rep_datatype syntax: 'induction' instead of 'induct';
wenzelm
parents: 6441
diff changeset
  1044
val _ = OuterSyntax.add_keywords ["distinct", "inject", "induction"];
6385
5a6570458d9e rep_datatype: '_i' version, attributes, outer syntax;
wenzelm
parents: 6360
diff changeset
  1045
val _ = OuterSyntax.add_parsers [datatypeP, rep_datatypeP];
5a6570458d9e rep_datatype: '_i' version, attributes, outer syntax;
wenzelm
parents: 6360
diff changeset
  1046
5a6570458d9e rep_datatype: '_i' version, attributes, outer syntax;
wenzelm
parents: 6360
diff changeset
  1047
end;
5a6570458d9e rep_datatype: '_i' version, attributes, outer syntax;
wenzelm
parents: 6360
diff changeset
  1048
6360
83573ae0f22c outer syntax for 'datatype';
wenzelm
parents: 6305
diff changeset
  1049
5177
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
  1050
end;
0d3a168e4d44 New datatype definition package
berghofe
parents:
diff changeset
  1051
6360
83573ae0f22c outer syntax for 'datatype';
wenzelm
parents: 6305
diff changeset
  1052
structure BasicDatatypePackage: BASIC_DATATYPE_PACKAGE = DatatypePackage;
83573ae0f22c outer syntax for 'datatype';
wenzelm
parents: 6305
diff changeset
  1053
open BasicDatatypePackage;
15704
93163972dbdc *** MESSAGE REFERS TO PREVIOUS VERSION ***
wenzelm
parents: 15703
diff changeset
  1054