src/HOL/Tools/datatype_codegen.ML
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use long names for old-style fold combinators;
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(*  Title:      HOL/Tools/datatype_codegen.ML
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    Author:     Stefan Berghofer and Florian Haftmann, TU Muenchen
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Code generator facilities for inductive datatypes.
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*)
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signature DATATYPE_CODEGEN =
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sig
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  val mk_eq: theory -> string -> thm list
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  val mk_case_cert: theory -> string -> thm
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  val setup: theory -> theory
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end;
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structure DatatypeCodegen : DATATYPE_CODEGEN =
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struct
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(** SML code generator **)
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open Codegen;
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(**** datatype definition ****)
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(* find shortest path to constructor with no recursive arguments *)
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fun find_nonempty (descr: DatatypeAux.descr) is i =
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  let
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    val (_, _, constrs) = valOf (AList.lookup (op =) descr i);
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    fun arg_nonempty (_, DatatypeAux.DtRec i) = if i mem is then NONE
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          else Option.map (curry op + 1 o snd) (find_nonempty descr (i::is) i)
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      | arg_nonempty _ = SOME 0;
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    fun max xs = Library.foldl
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      (fn (NONE, _) => NONE
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        | (SOME i, SOME j) => SOME (Int.max (i, j))
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        | (_, NONE) => NONE) (SOME 0, xs);
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    val xs = sort (int_ord o pairself snd)
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      (List.mapPartial (fn (s, dts) => Option.map (pair s)
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        (max (map (arg_nonempty o DatatypeAux.strip_dtyp) dts))) constrs)
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  in case xs of [] => NONE | x :: _ => SOME x end;
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fun add_dt_defs thy defs dep module (descr: DatatypeAux.descr) sorts gr =
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  let
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    val descr' = List.filter (can (map DatatypeAux.dest_DtTFree o #2 o snd)) descr;
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    val rtnames = map (#1 o snd) (List.filter (fn (_, (_, _, cs)) =>
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      exists (exists DatatypeAux.is_rec_type o snd) cs) descr');
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    val (_, (tname, _, _)) :: _ = descr';
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    val node_id = tname ^ " (type)";
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    val module' = if_library (thyname_of_type thy tname) module;
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    fun mk_dtdef prfx [] gr = ([], gr)
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      | mk_dtdef prfx ((_, (tname, dts, cs))::xs) gr =
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          let
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            val tvs = map DatatypeAux.dest_DtTFree dts;
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            val cs' = map (apsnd (map (DatatypeAux.typ_of_dtyp descr sorts))) cs;
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            val ((_, type_id), gr') = mk_type_id module' tname gr;
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            val (ps, gr'') = gr' |>
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              fold_map (fn (cname, cargs) =>
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                fold_map (invoke_tycodegen thy defs node_id module' false)
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                  cargs ##>>
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                mk_const_id module' cname) cs';
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            val (rest, gr''') = mk_dtdef "and " xs gr''
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          in
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            (Pretty.block (str prfx ::
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               (if null tvs then [] else
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                  [mk_tuple (map str tvs), str " "]) @
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               [str (type_id ^ " ="), Pretty.brk 1] @
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               List.concat (separate [Pretty.brk 1, str "| "]
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                 (map (fn (ps', (_, cname)) => [Pretty.block
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                   (str cname ::
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                    (if null ps' then [] else
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                     List.concat ([str " of", Pretty.brk 1] ::
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                       separate [str " *", Pretty.brk 1]
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                         (map single ps'))))]) ps))) :: rest, gr''')
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          end;
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    fun mk_constr_term cname Ts T ps =
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      List.concat (separate [str " $", Pretty.brk 1]
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        ([str ("Const (\"" ^ cname ^ "\","), Pretty.brk 1,
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          mk_type false (Ts ---> T), str ")"] :: ps));
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    fun mk_term_of_def gr prfx [] = []
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      | mk_term_of_def gr prfx ((_, (tname, dts, cs)) :: xs) =
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          let
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            val cs' = map (apsnd (map (DatatypeAux.typ_of_dtyp descr sorts))) cs;
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            val dts' = map (DatatypeAux.typ_of_dtyp descr sorts) dts;
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            val T = Type (tname, dts');
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            val rest = mk_term_of_def gr "and " xs;
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            val (_, eqs) = Library.foldl_map (fn (prfx, (cname, Ts)) =>
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              let val args = map (fn i =>
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                str ("x" ^ string_of_int i)) (1 upto length Ts)
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              in ("  | ", Pretty.blk (4,
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                [str prfx, mk_term_of gr module' false T, Pretty.brk 1,
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                 if null Ts then str (snd (get_const_id gr cname))
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                 else parens (Pretty.block
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                   [str (snd (get_const_id gr cname)),
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                    Pretty.brk 1, mk_tuple args]),
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                 str " =", Pretty.brk 1] @
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                 mk_constr_term cname Ts T
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                   (map (fn (x, U) => [Pretty.block [mk_term_of gr module' false U,
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                      Pretty.brk 1, x]]) (args ~~ Ts))))
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              end) (prfx, cs')
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          in eqs @ rest end;
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    fun mk_gen_of_def gr prfx [] = []
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      | mk_gen_of_def gr prfx ((i, (tname, dts, cs)) :: xs) =
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          let
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            val tvs = map DatatypeAux.dest_DtTFree dts;
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            val Us = map (DatatypeAux.typ_of_dtyp descr sorts) dts;
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            val T = Type (tname, Us);
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            val (cs1, cs2) =
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              List.partition (exists DatatypeAux.is_rec_type o snd) cs;
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            val SOME (cname, _) = find_nonempty descr [i] i;
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            fun mk_delay p = Pretty.block
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              [str "fn () =>", Pretty.brk 1, p];
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            fun mk_force p = Pretty.block [p, Pretty.brk 1, str "()"];
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            fun mk_constr s b (cname, dts) =
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              let
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                val gs = map (fn dt => mk_app false (mk_gen gr module' false rtnames s
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                    (DatatypeAux.typ_of_dtyp descr sorts dt))
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                  [str (if b andalso DatatypeAux.is_rec_type dt then "0"
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                     else "j")]) dts;
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                val Ts = map (DatatypeAux.typ_of_dtyp descr sorts) dts;
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                val xs = map str
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                  (DatatypeProp.indexify_names (replicate (length dts) "x"));
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                val ts = map str
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                  (DatatypeProp.indexify_names (replicate (length dts) "t"));
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                val (_, id) = get_const_id gr cname
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              in
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                mk_let
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                  (map2 (fn p => fn q => mk_tuple [p, q]) xs ts ~~ gs)
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                  (mk_tuple
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                    [case xs of
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                       _ :: _ :: _ => Pretty.block
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                         [str id, Pretty.brk 1, mk_tuple xs]
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                     | _ => mk_app false (str id) xs,
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                     mk_delay (Pretty.block (mk_constr_term cname Ts T
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                       (map (single o mk_force) ts)))])
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              end;
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            fun mk_choice [c] = mk_constr "(i-1)" false c
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              | mk_choice cs = Pretty.block [str "one_of",
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                  Pretty.brk 1, Pretty.blk (1, str "[" ::
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                  List.concat (separate [str ",", Pretty.fbrk]
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                    (map (single o mk_delay o mk_constr "(i-1)" false) cs)) @
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                  [str "]"]), Pretty.brk 1, str "()"];
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c93803252748 Test data generation and conversion to terms is now more closely
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            val gs = maps (fn s =>
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              let val s' = strip_tname s
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              in [str (s' ^ "G"), str (s' ^ "T")] end) tvs;
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            val gen_name = "gen_" ^ snd (get_type_id gr tname)
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29f726e36e5c Added generator for test case generators.
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          in
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            Pretty.blk (4, separate (Pretty.brk 1) 
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                (str (prfx ^ gen_name ^
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                   (if null cs1 then "" else "'")) :: gs @
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                 (if null cs1 then [] else [str "i"]) @
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                 [str "j"]) @
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              [str " =", Pretty.brk 1] @
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              (if not (null cs1) andalso not (null cs2)
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               then [str "frequency", Pretty.brk 1,
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                 Pretty.blk (1, [str "[",
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                   mk_tuple [str "i", mk_delay (mk_choice cs1)],
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                   str ",", Pretty.fbrk,
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                   mk_tuple [str "1", mk_delay (mk_choice cs2)],
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                   str "]"]), Pretty.brk 1, str "()"]
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               else if null cs2 then
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                 [Pretty.block [str "(case", Pretty.brk 1,
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                   str "i", Pretty.brk 1, str "of",
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                   Pretty.brk 1, str "0 =>", Pretty.brk 1,
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                   mk_constr "0" true (cname, valOf (AList.lookup (op =) cs cname)),
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                   Pretty.brk 1, str "| _ =>", Pretty.brk 1,
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                   mk_choice cs1, str ")"]]
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               else [mk_choice cs2])) ::
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            (if null cs1 then []
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             else [Pretty.blk (4, separate (Pretty.brk 1) 
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                 (str ("and " ^ gen_name) :: gs @ [str "i"]) @
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               [str " =", Pretty.brk 1] @
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               separate (Pretty.brk 1) (str (gen_name ^ "'") :: gs @
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                 [str "i", str "i"]))]) @
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            mk_gen_of_def gr "and " xs
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          end
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  in
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    (module', (add_edge_acyclic (node_id, dep) gr
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        handle Graph.CYCLES _ => gr) handle Graph.UNDEF _ =>
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         let
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           val gr1 = add_edge (node_id, dep)
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             (new_node (node_id, (NONE, "", "")) gr);
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           val (dtdef, gr2) = mk_dtdef "datatype " descr' gr1 ;
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         in
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           map_node node_id (K (NONE, module',
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             string_of (Pretty.blk (0, separate Pretty.fbrk dtdef @
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               [str ";"])) ^ "\n\n" ^
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             (if "term_of" mem !mode then
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                string_of (Pretty.blk (0, separate Pretty.fbrk
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                  (mk_term_of_def gr2 "fun " descr') @ [str ";"])) ^ "\n\n"
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              else "") ^
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             (if "test" mem !mode then
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                string_of (Pretty.blk (0, separate Pretty.fbrk
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                  (mk_gen_of_def gr2 "fun " descr') @ [str ";"])) ^ "\n\n"
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              else ""))) gr2
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         end)
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  end;
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(**** case expressions ****)
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fun pretty_case thy defs dep module brack constrs (c as Const (_, T)) ts gr =
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  let val i = length constrs
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  in if length ts <= i then
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       invoke_codegen thy defs dep module brack (eta_expand c ts (i+1)) gr
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    else
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      let
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        val ts1 = Library.take (i, ts);
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        val t :: ts2 = Library.drop (i, ts);
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        val names = List.foldr OldTerm.add_term_names
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          (map (fst o fst o dest_Var) (List.foldr OldTerm.add_term_vars [] ts1)) ts1;
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        val (Ts, dT) = split_last (Library.take (i+1, fst (strip_type T)));
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        fun pcase [] [] [] gr = ([], gr)
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          | pcase ((cname, cargs)::cs) (t::ts) (U::Us) gr =
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              let
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                val j = length cargs;
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                val xs = Name.variant_list names (replicate j "x");
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                val Us' = Library.take (j, fst (strip_type U));
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                val frees = map Free (xs ~~ Us');
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                val (cp, gr0) = invoke_codegen thy defs dep module false
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                  (list_comb (Const (cname, Us' ---> dT), frees)) gr;
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                val t' = Envir.beta_norm (list_comb (t, frees));
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                val (p, gr1) = invoke_codegen thy defs dep module false t' gr0;
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                val (ps, gr2) = pcase cs ts Us gr1;
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              in
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                ([Pretty.block [cp, str " =>", Pretty.brk 1, p]] :: ps, gr2)
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              end;
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        val (ps1, gr1) = pcase constrs ts1 Ts gr ;
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        val ps = List.concat (separate [Pretty.brk 1, str "| "] ps1);
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        val (p, gr2) = invoke_codegen thy defs dep module false t gr1;
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        val (ps2, gr3) = fold_map (invoke_codegen thy defs dep module true) ts2 gr2;
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      in ((if not (null ts2) andalso brack then parens else I)
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        (Pretty.block (separate (Pretty.brk 1)
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          (Pretty.block ([str "(case ", p, str " of",
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             Pretty.brk 1] @ ps @ [str ")"]) :: ps2))), gr3)
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      end
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  end;
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f17eb90bfd16 Code generator for datatypes.
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(**** constructors ****)
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fun pretty_constr thy defs dep module brack args (c as Const (s, T)) ts gr =
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  let val i = length args
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  in if i > 1 andalso length ts < i then
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      invoke_codegen thy defs dep module brack (eta_expand c ts i) gr
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     else
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       let
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         val id = mk_qual_id module (get_const_id gr s);
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         val (ps, gr') = fold_map
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           (invoke_codegen thy defs dep module (i = 1)) ts gr;
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       in (case args of
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          _ :: _ :: _ => (if brack then parens else I)
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            (Pretty.block [str id, Pretty.brk 1, mk_tuple ps])
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        | _ => (mk_app brack (str id) ps), gr')
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       end
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  end;
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f17eb90bfd16 Code generator for datatypes.
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(**** code generators for terms and types ****)
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fun datatype_codegen thy defs dep module brack t gr = (case strip_comb t of
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   (c as Const (s, T), ts) =>
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     (case DatatypePackage.datatype_of_case thy s of
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        SOME {index, descr, ...} =>
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          if is_some (get_assoc_code thy (s, T)) then NONE else
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          SOME (pretty_case thy defs dep module brack
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            (#3 (the (AList.lookup op = descr index))) c ts gr )
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      | NONE => case (DatatypePackage.datatype_of_constr thy s, strip_type T) of
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        (SOME {index, descr, ...}, (_, U as Type (tyname, _))) =>
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          if is_some (get_assoc_code thy (s, T)) then NONE else
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          let
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            val SOME (tyname', _, constrs) = AList.lookup op = descr index;
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            val SOME args = AList.lookup op = constrs s
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          in
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            if tyname <> tyname' then NONE
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            else SOME (pretty_constr thy defs
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              dep module brack args c ts (snd (invoke_tycodegen thy defs dep module false U gr)))
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          end
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      | _ => NONE)
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 | _ => NONE);
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fun datatype_tycodegen thy defs dep module brack (Type (s, Ts)) gr =
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      (case DatatypePackage.get_datatype thy s of
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         NONE => NONE
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       | SOME {descr, sorts, ...} =>
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           if is_some (get_assoc_type thy s) then NONE else
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           let
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             val (ps, gr') = fold_map
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               (invoke_tycodegen thy defs dep module false) Ts gr;
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             val (module', gr'') = add_dt_defs thy defs dep module descr sorts gr' ;
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             val (tyid, gr''') = mk_type_id module' s gr''
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           in SOME (Pretty.block ((if null Ts then [] else
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               [mk_tuple ps, str " "]) @
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               [str (mk_qual_id module tyid)]), gr''')
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           end)
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  | datatype_tycodegen _ _ _ _ _ _ _ = NONE;
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(** generic code generator **)
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(* specification *)
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fun add_datatype_spec vs dtco cos thy =
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  let
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    val cs = map (fn (c, tys) => (c, tys ---> Type (dtco, map TFree vs))) cos;
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  in
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    thy
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    |> try (Code.add_datatype cs)
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    |> the_default thy
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  end;
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c2a116a2c4fd ProofContext.init;
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(* case certificates *)
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fun mk_case_cert thy tyco =
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  let
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    val raw_thms =
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      (#case_rewrites o DatatypePackage.the_datatype thy) tyco;
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    val thms as hd_thm :: _ = raw_thms
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      |> Conjunction.intr_balanced
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      |> Thm.unvarify
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      |> Conjunction.elim_balanced (length raw_thms)
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      |> map Simpdata.mk_meta_eq
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      |> map Drule.zero_var_indexes
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    val params = fold_aterms (fn (Free (v, _)) => insert (op =) v
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      | _ => I) (Thm.prop_of hd_thm) [];
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    val rhs = hd_thm
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      |> Thm.prop_of
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      |> Logic.dest_equals
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      |> fst
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      |> Term.strip_comb
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      |> apsnd (fst o split_last)
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      |> list_comb;
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    val lhs = Free (Name.variant params "case", Term.fastype_of rhs);
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    val asm = (Thm.cterm_of thy o Logic.mk_equals) (lhs, rhs);
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  in
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    thms
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    |> Conjunction.intr_balanced
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    |> MetaSimplifier.rewrite_rule [(Thm.symmetric o Thm.assume) asm]
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    |> Thm.implies_intr asm
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    |> Thm.generalize ([], params) 0
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    |> AxClass.unoverload thy
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    |> Thm.varifyT
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  end;
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   356
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fun add_datatype_cases dtco thy =
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  let
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    val {case_rewrites, ...} = DatatypePackage.the_datatype thy dtco;
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    val cert = mk_case_cert thy dtco;
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    fun add_case_liberal thy = thy
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      |> try (Code.add_case cert)
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      |> the_default thy;
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  in
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    thy
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    |> add_case_liberal
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    |> fold_rev Code.add_default_eqn case_rewrites
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  end;
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(* equality *)
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local
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val not_sym = @{thm HOL.not_sym};
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val not_false_true = iffD2 OF [nth @{thms HOL.simp_thms} 7, TrueI];
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val refl = @{thm refl};
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val eqTrueI = @{thm eqTrueI};
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fun mk_distinct cos =
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  let
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    fun sym_product [] = []
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      | sym_product (x::xs) = map (pair x) xs @ sym_product xs;
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   384
    fun mk_co_args (co, tys) ctxt =
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      let
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   386
        val names = Name.invents ctxt "a" (length tys);
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   387
        val ctxt' = fold Name.declare names ctxt;
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   388
        val vs = map2 (curry Free) names tys;
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   389
      in (vs, ctxt') end;
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   390
    fun mk_dist ((co1, tys1), (co2, tys2)) =
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   391
      let
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   392
        val ((xs1, xs2), _) = Name.context
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   393
          |> mk_co_args (co1, tys1)
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   394
          ||>> mk_co_args (co2, tys2);
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   395
        val prem = HOLogic.mk_eq
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   396
          (list_comb (co1, xs1), list_comb (co2, xs2));
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   397
        val t = HOLogic.mk_not prem;
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   398
      in HOLogic.mk_Trueprop t end;
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   399
  in map mk_dist (sym_product cos) end;
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   400
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   401
in
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   402
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   403
fun mk_eq thy dtco =
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   404
  let
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   405
    val (vs, cs) = DatatypePackage.the_datatype_spec thy dtco;
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   406
    fun mk_triv_inject co =
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   407
      let
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   408
        val ct' = Thm.cterm_of thy
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   409
          (Const (co, Type (dtco, map (fn (v, sort) => TVar ((v, 0), sort)) vs)))
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   410
        val cty' = Thm.ctyp_of_term ct';
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   411
        val SOME (ct, cty) = fold_aterms (fn Var (v, ty) =>
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   412
          (K o SOME) (Thm.cterm_of thy (Var (v, Thm.typ_of cty')), Thm.ctyp_of thy ty) | _ => I)
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   413
          (Thm.prop_of refl) NONE;
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   414
      in eqTrueI OF [Thm.instantiate ([(cty, cty')], [(ct, ct')]) refl] end;
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   415
    val inject1 = map_filter (fn (co, []) => SOME (mk_triv_inject co) | _ => NONE) cs
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   416
    val inject2 = (#inject o DatatypePackage.the_datatype thy) dtco;
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   417
    val ctxt = ProofContext.init thy;
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   418
    val simpset = Simplifier.context ctxt
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   419
      (Simplifier.empty_ss addsimprocs [DatatypePackage.distinct_simproc]);
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   420
    val cos = map (fn (co, tys) =>
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   421
        (Const (co, tys ---> Type (dtco, map TFree vs)), tys)) cs;
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   422
    val tac = ALLGOALS (simp_tac simpset)
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   423
      THEN ALLGOALS (ProofContext.fact_tac [not_false_true, TrueI]);
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   424
    val distinct =
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   425
      mk_distinct cos
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   426
      |> map (fn t => Goal.prove_global thy [] [] t (K tac))
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   427
      |> (fn thms => thms @ map (fn thm => not_sym OF [thm]) thms)
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   428
  in inject1 @ inject2 @ distinct end;
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   429
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   430
end;
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   431
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   432
fun add_datatypes_equality vs dtcos thy =
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   433
  let
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   434
    val vs' = (map o apsnd)
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diff changeset
   435
      (curry (Sorts.inter_sort (Sign.classes_of thy)) [HOLogic.class_eq]) vs;
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   436
    fun add_def dtco lthy =
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   437
      let
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   438
        val ty = Type (dtco, map TFree vs');
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   439
        fun mk_side const_name = Const (const_name, ty --> ty --> HOLogic.boolT)
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   440
          $ Free ("x", ty) $ Free ("y", ty);
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   441
        val def = HOLogic.mk_Trueprop (HOLogic.mk_eq
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diff changeset
   442
          (mk_side @{const_name eq_class.eq}, mk_side @{const_name "op ="}));
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6f306c8c2c54 explicit class "eq" for operational equality
haftmann
parents: 25889
diff changeset
   443
        val def' = Syntax.check_term lthy def;
6f306c8c2c54 explicit class "eq" for operational equality
haftmann
parents: 25889
diff changeset
   444
        val ((_, (_, thm)), lthy') = Specification.definition
28965
1de908189869 cleaned up binding module and related code
haftmann
parents: 28673
diff changeset
   445
          (NONE, (Attrib.empty_binding, def')) lthy;
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6f306c8c2c54 explicit class "eq" for operational equality
haftmann
parents: 25889
diff changeset
   446
        val ctxt_thy = ProofContext.init (ProofContext.theory_of lthy);
6f306c8c2c54 explicit class "eq" for operational equality
haftmann
parents: 25889
diff changeset
   447
        val thm' = singleton (ProofContext.export lthy' ctxt_thy) thm;
6f306c8c2c54 explicit class "eq" for operational equality
haftmann
parents: 25889
diff changeset
   448
      in (thm', lthy') end;
6f306c8c2c54 explicit class "eq" for operational equality
haftmann
parents: 25889
diff changeset
   449
    fun tac thms = Class.intro_classes_tac []
6f306c8c2c54 explicit class "eq" for operational equality
haftmann
parents: 25889
diff changeset
   450
      THEN ALLGOALS (ProofContext.fact_tac thms);
30076
f3043dafef5f improved treatment of case certificates
haftmann
parents: 29302
diff changeset
   451
    fun mk_eq' thy dtco = mk_eq thy dtco
28423
9fc3befd8191 clarified codegen interfaces
haftmann
parents: 28394
diff changeset
   452
      |> map (Code_Unit.constrain_thm thy [HOLogic.class_eq])
26513
6f306c8c2c54 explicit class "eq" for operational equality
haftmann
parents: 25889
diff changeset
   453
      |> map Simpdata.mk_eq
28423
9fc3befd8191 clarified codegen interfaces
haftmann
parents: 28394
diff changeset
   454
      |> map (MetaSimplifier.rewrite_rule [Thm.transfer thy @{thm equals_eq}])
9fc3befd8191 clarified codegen interfaces
haftmann
parents: 28394
diff changeset
   455
      |> map (AxClass.unoverload thy);
25534
d0b74fdd6067 simplified infrastructure for code generator operational equality
haftmann
parents: 25505
diff changeset
   456
    fun add_eq_thms dtco thy =
20597
65fe827aa595 code generation 2 adjustments
haftmann
parents: 20439
diff changeset
   457
      let
28350
715163ec93c0 non left-linear equations for nbe
haftmann
parents: 28084
diff changeset
   458
        val ty = Type (dtco, map TFree vs');
24137
8d7896398147 replaced Theory.self_ref by Theory.check_thy, which now produces a checked ref;
wenzelm
parents: 23811
diff changeset
   459
        val thy_ref = Theory.check_thy thy;
26732
6ea9de67e576 constant HOL.eq now qualified
haftmann
parents: 26513
diff changeset
   460
        val const = AxClass.param_of_inst thy (@{const_name eq_class.eq}, dtco);
28350
715163ec93c0 non left-linear equations for nbe
haftmann
parents: 28084
diff changeset
   461
        val eq_refl = @{thm HOL.eq_refl}
715163ec93c0 non left-linear equations for nbe
haftmann
parents: 28084
diff changeset
   462
          |> Thm.instantiate
715163ec93c0 non left-linear equations for nbe
haftmann
parents: 28084
diff changeset
   463
              ([pairself (Thm.ctyp_of thy) (TVar (("'a", 0), @{sort eq}), Logic.varifyT ty)], [])
28423
9fc3befd8191 clarified codegen interfaces
haftmann
parents: 28394
diff changeset
   464
          |> Simpdata.mk_eq
9fc3befd8191 clarified codegen interfaces
haftmann
parents: 28394
diff changeset
   465
          |> AxClass.unoverload thy;
30076
f3043dafef5f improved treatment of case certificates
haftmann
parents: 29302
diff changeset
   466
        fun mk_thms () = (eq_refl, false)
f3043dafef5f improved treatment of case certificates
haftmann
parents: 29302
diff changeset
   467
          :: rev (map (rpair true) (mk_eq' (Theory.deref thy_ref) dtco));
20597
65fe827aa595 code generation 2 adjustments
haftmann
parents: 20439
diff changeset
   468
      in
30076
f3043dafef5f improved treatment of case certificates
haftmann
parents: 29302
diff changeset
   469
        Code.add_eqnl (const, Lazy.lazy mk_thms) thy
20597
65fe827aa595 code generation 2 adjustments
haftmann
parents: 20439
diff changeset
   470
      end;
65fe827aa595 code generation 2 adjustments
haftmann
parents: 20439
diff changeset
   471
  in
25534
d0b74fdd6067 simplified infrastructure for code generator operational equality
haftmann
parents: 25505
diff changeset
   472
    thy
25864
11f531354852 explicit type variables for instantiation
haftmann
parents: 25597
diff changeset
   473
    |> TheoryTarget.instantiation (dtcos, vs', [HOLogic.class_eq])
26513
6f306c8c2c54 explicit class "eq" for operational equality
haftmann
parents: 25889
diff changeset
   474
    |> fold_map add_def dtcos
6f306c8c2c54 explicit class "eq" for operational equality
haftmann
parents: 25889
diff changeset
   475
    |-> (fn thms => Class.prove_instantiation_instance (K (tac thms))
28394
b9c8e3a12a98 LocalTheory.exit_global;
wenzelm
parents: 28370
diff changeset
   476
    #> LocalTheory.exit_global
28370
37f56e6e702d removed obsolete name convention "func"
haftmann
parents: 28350
diff changeset
   477
    #> fold Code.del_eqn thms
26513
6f306c8c2c54 explicit class "eq" for operational equality
haftmann
parents: 25889
diff changeset
   478
    #> fold add_eq_thms dtcos)
20597
65fe827aa595 code generation 2 adjustments
haftmann
parents: 20439
diff changeset
   479
  end;
65fe827aa595 code generation 2 adjustments
haftmann
parents: 20439
diff changeset
   480
20426
9ffea7a8b31c added typecopy_package
haftmann
parents: 20389
diff changeset
   481
9ffea7a8b31c added typecopy_package
haftmann
parents: 20389
diff changeset
   482
(** theory setup **)
9ffea7a8b31c added typecopy_package
haftmann
parents: 20389
diff changeset
   483
25534
d0b74fdd6067 simplified infrastructure for code generator operational equality
haftmann
parents: 25505
diff changeset
   484
fun add_datatype_code dtcos thy =
23513
haftmann
parents: 22921
diff changeset
   485
  let
25534
d0b74fdd6067 simplified infrastructure for code generator operational equality
haftmann
parents: 25505
diff changeset
   486
    val (vs :: _, coss) = (split_list o map (DatatypePackage.the_datatype_spec thy)) dtcos;
25489
5b0625f6e324 simplified interpretations
haftmann
parents: 25485
diff changeset
   487
  in
25505
4d531475129a stripped down
haftmann
parents: 25502
diff changeset
   488
    thy
25534
d0b74fdd6067 simplified infrastructure for code generator operational equality
haftmann
parents: 25505
diff changeset
   489
    |> fold2 (add_datatype_spec vs) dtcos coss
d0b74fdd6067 simplified infrastructure for code generator operational equality
haftmann
parents: 25505
diff changeset
   490
    |> fold add_datatype_cases dtcos
d0b74fdd6067 simplified infrastructure for code generator operational equality
haftmann
parents: 25505
diff changeset
   491
    |> add_datatypes_equality vs dtcos
25489
5b0625f6e324 simplified interpretations
haftmann
parents: 25485
diff changeset
   492
  end;
5b0625f6e324 simplified interpretations
haftmann
parents: 25485
diff changeset
   493
19008
14c1b2f5dda4 improved code generator devarification
haftmann
parents: 18963
diff changeset
   494
val setup = 
20597
65fe827aa595 code generation 2 adjustments
haftmann
parents: 20439
diff changeset
   495
  add_codegen "datatype" datatype_codegen
24626
85eceef2edc7 introduced generic concepts for theory interpretators
haftmann
parents: 24624
diff changeset
   496
  #> add_tycodegen "datatype" datatype_tycodegen
25534
d0b74fdd6067 simplified infrastructure for code generator operational equality
haftmann
parents: 25505
diff changeset
   497
  #> DatatypePackage.interpretation add_datatype_code
20597
65fe827aa595 code generation 2 adjustments
haftmann
parents: 20439
diff changeset
   498
12445
f17eb90bfd16 Code generator for datatypes.
berghofe
parents:
diff changeset
   499
end;