src/Pure/Tools/class_package.ML
author haftmann
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class package refinements, slight code generation refinements
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(*  Title:      Pure/Tools/class_package.ML
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    ID:         $Id$
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    Author:     Florian Haftmann, TU Muenchen
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Type classes derived from primitive axclasses and locales.
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*)
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signature CLASS_PACKAGE =
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sig
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  val class: bstring -> class list -> Element.context list -> theory
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    -> ProofContext.context * theory
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  val class_i: bstring -> class list -> Element.context_i list -> theory
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    -> ProofContext.context * theory
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  val instance_arity: (xstring * string list) * string
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    -> bstring * Attrib.src list -> ((bstring * Attrib.src list) * string) list
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    -> theory -> Proof.state
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  val instance_arity_i: (string * sort list) * sort
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    -> bstring * attribute list -> ((bstring * attribute list) * term) list
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    -> theory -> Proof.state
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  val prove_instance_arity: tactic -> (string * sort list) * sort
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    -> bstring * attribute list -> ((bstring * attribute list) * term) list
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    -> theory -> theory
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  val instance_sort: string * string -> theory -> Proof.state
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  val instance_sort_i: class * sort -> theory -> Proof.state
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  val prove_instance_sort: tactic -> class * sort -> theory -> theory
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  val use_cp_instance: bool ref;
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  val intern_class: theory -> xstring -> class
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  val intern_sort: theory -> sort -> sort
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  val extern_class: theory -> class -> xstring
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  val extern_sort: theory -> sort -> sort
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  val certify_class: theory -> class -> class
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  val certify_sort: theory -> sort -> sort
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  val read_sort: theory -> string -> sort
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  val operational_sort_of: theory -> sort -> sort
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  val the_superclasses: theory -> class -> class list
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  val the_consts_sign: theory -> class -> string * (string * typ) list
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  val lookup_const_class: theory -> string -> class option
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  val the_instances: theory -> class -> (string * ((sort list) * string)) list
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  val the_inst_sign: theory -> class * string -> (string * sort) list * (string * typ) list
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  val get_classtab: theory -> (string * string) list Symtab.table
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  val print_classes: theory -> unit
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  val intro_classes_tac: thm list -> tactic
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  val default_intro_classes_tac: thm list -> tactic
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  type sortcontext = (string * sort) list
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  datatype classlookup = Instance of (class * string) * classlookup list list
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                       | Lookup of class list * (string * (int * int))
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  val sortcontext_of_typ: theory -> typ -> sortcontext
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  val sortlookup: theory -> sort * typ -> classlookup list
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  val sortlookups_const: theory -> string * typ -> classlookup list list
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end;
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structure ClassPackage: CLASS_PACKAGE =
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struct
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(* theory data *)
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datatype class_data = ClassData of {
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  name_locale: string,
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  name_axclass: string,
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  var: string,
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  consts: (string * (string * typ)) list
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    (*locale parameter ~> toplevel const*)
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};
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fun rep_classdata (ClassData c) = c;
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structure ClassData = TheoryDataFun (
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  struct
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    val name = "Pure/classes";
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    type T = (class_data Graph.T
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      * (string * (sort list * string)) list Symtab.table)
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        (*class ~> tyco ~> (arity, thyname)*)
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      * class Symtab.table;
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    val empty = ((Graph.empty, Symtab.empty), Symtab.empty);
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    val copy = I;
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    val extend = I;
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    fun merge _ (((g1, c1), f1) : T, ((g2, c2), f2)) =
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      ((Graph.merge (K true) (g1, g2), Symtab.join (fn _ => AList.merge (op =) (op =)) (c1, c2)),
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       Symtab.merge (op =) (f1, f2));
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    fun print thy ((gr, _), _) =
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      let
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        fun pretty_class gr (name, ClassData {name_locale, name_axclass, var, consts}) =
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          (Pretty.block o Pretty.fbreaks) [
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            Pretty.str ("class " ^ name ^ ":"),
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            (Pretty.block o Pretty.fbreaks) (
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              Pretty.str "superclasses: "
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              :: (map Pretty.str o Graph.imm_succs gr) name
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            ),
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            Pretty.str ("locale: " ^ name_locale),
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            Pretty.str ("axclass: " ^ name_axclass),
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            Pretty.str ("class variable: " ^ var),
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            (Pretty.block o Pretty.fbreaks) (
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              Pretty.str "constants: "
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              :: map (fn (_, (c, ty)) => Pretty.str (c ^ " :: " ^ Sign.string_of_typ thy ty)) consts
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            )
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          ]
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      in
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        (Pretty.writeln o Pretty.chunks o map (pretty_class gr)
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          o AList.make (Graph.get_node gr) o flat o Graph.strong_conn) gr
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      end;
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  end
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);
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val _ = Context.add_setup ClassData.init;
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val print_classes = ClassData.print;
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(* queries *)
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val lookup_class_data = Option.map rep_classdata oo try o Graph.get_node o fst o fst o ClassData.get;
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val the_instances = these oo Symtab.lookup o snd o fst o ClassData.get;
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val lookup_const_class = Symtab.lookup o snd o ClassData.get;
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fun the_class_data thy class =
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  case lookup_class_data thy class
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    of NONE => error ("undeclared operational class " ^ quote class)
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     | SOME data => data;
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val is_class = is_some oo lookup_class_data;
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fun is_operational_class thy cls =
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  lookup_class_data thy cls
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  |> Option.map (not o null o #consts)
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  |> the_default false;
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fun operational_sort_of thy =
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  let
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    fun get_sort class =
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      if is_operational_class thy class
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      then [class]
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      else operational_sort_of thy (Sign.super_classes thy class);
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  in Sign.certify_sort thy o maps get_sort end;
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fun the_superclasses thy class =
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  if is_class thy class
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  then
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    Sign.super_classes thy class
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    |> operational_sort_of thy
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  else
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    error ("no class: " ^ class);
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fun get_superclass_derivation thy (subclass, superclass) =
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  if subclass = superclass
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    then SOME [subclass]
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    else case Graph.irreducible_paths ((fst o fst o ClassData.get) thy) (subclass, superclass)
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      of [] => NONE
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       | (p::_) => (SOME o filter (is_operational_class thy)) p;
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fun the_ancestry thy classes =
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  let
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    fun ancestry class anc =
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      anc
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      |> cons class
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      |> fold ancestry (the_superclasses thy class);
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  in fold ancestry classes [] end;
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fun subst_clsvar v ty_subst =
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  map_type_tfree (fn u as (w, _) =>
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    if w = v then ty_subst else TFree u);
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fun the_parm_map thy class =
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  let
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    val data = the_class_data thy class
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  in (#consts data) end;
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fun the_consts_sign thy class =
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  let
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    val data = the_class_data thy class
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  in (#var data, (map snd o #consts) data) end;
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fun the_inst_sign thy (class, tyco) =
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  let
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    val _ = if is_operational_class thy class then () else error ("no operational class: " ^ class);
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    val arity = Sign.arity_sorts thy tyco [class];
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    val clsvar = (#var o the_class_data thy) class;
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    val const_sign = (snd o the_consts_sign thy) class;
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    fun add_var sort used =
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      let
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        val v = hd (Term.invent_names used "'a" 1)
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      in ((v, sort), v::used) end;
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    val (vsorts, _) =
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      [clsvar]
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      |> fold (fn (_, ty) => curry (gen_union (op =))
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           ((map (fst o fst) o typ_tvars) ty @ (map fst o typ_tfrees) ty)) const_sign
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      |> fold_map add_var arity;
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    val ty_inst = Type (tyco, map TFree vsorts);
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    val inst_signs = map (apsnd (subst_clsvar clsvar ty_inst)) const_sign;
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  in (vsorts, inst_signs) end;
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fun get_classtab thy =
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  (Symtab.map o map)
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    (fn (tyco, (_, thyname)) => (tyco, thyname)) ((snd o fst o ClassData.get) thy);
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(* updaters *)
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fun add_class_data (class, (superclasses, name_locale, name_axclass, var, consts)) =
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  ClassData.map (fn ((gr, tab), consttab) => ((
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    gr
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    |> Graph.new_node (class, ClassData {
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         name_locale = name_locale,
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         name_axclass = name_axclass,
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         var = var,
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         consts = consts
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       })
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    |> fold (curry Graph.add_edge_acyclic class) superclasses,
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    tab
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    |> Symtab.update (class, [])),
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    consttab
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    |> fold (fn (_, (c, _)) => Symtab.update (c, class)) consts
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  ));
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fun add_inst_data (class, inst) =
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  ClassData.map (fn ((gr, tab), consttab) =>
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    let
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      val undef_supclasses = class :: (filter (Symtab.defined tab) (Graph.all_succs gr [class]));
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    in
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     ((gr, tab |> fold (fn class => Symtab.map_entry class (AList.update (op =) inst)) undef_supclasses), consttab)
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    end);
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(* name handling *)
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fun certify_class thy class =
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  (fn class => (the_class_data thy class; class)) (Sign.certify_class thy class);
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fun certify_sort thy sort =
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  map (fn class => (the_class_data thy class; class)) (Sign.certify_sort thy sort);
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fun intern_class thy =
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certify_class thy o Sign.intern_class thy;
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fun intern_sort thy =
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  certify_sort thy o Sign.intern_sort thy;
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fun extern_class thy =
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  Sign.extern_class thy o certify_class thy;
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fun extern_sort thy =
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  Sign.extern_sort thy o certify_sort thy;
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fun read_sort thy =
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  certify_sort thy o Sign.read_sort thy;
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(* tactics and methods *)
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fun intro_classes_tac facts st =
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  (ALLGOALS (Method.insert_tac facts THEN'
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      REPEAT_ALL_NEW (resolve_tac (AxClass.class_intros (Thm.theory_of_thm st))))
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    THEN Tactic.distinct_subgoals_tac) st;
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fun default_intro_classes_tac [] = intro_classes_tac []
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  | default_intro_classes_tac _ = Tactical.no_tac;    (*no error message!*)
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fun default_tac rules ctxt facts =
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  HEADGOAL (Method.some_rule_tac rules ctxt facts) ORELSE
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    default_intro_classes_tac facts;
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val _ = Context.add_setup (Method.add_methods
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 [("intro_classes", Method.no_args (Method.METHOD intro_classes_tac),
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    "back-chain introduction rules of classes"),
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  ("default", Method.thms_ctxt_args (Method.METHOD oo default_tac),
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    "apply some intro/elim rule")]);
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(* axclass instances *)
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local
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fun gen_instance mk_prop add_thm after_qed inst thy =
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  thy
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  |> ProofContext.init
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  |> Proof.theorem_i PureThy.internalK NONE (after_qed oo (fold o fold) add_thm) NONE ("", [])
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       (map (fn t => (("", []), [(t, [])])) (mk_prop thy inst));
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in
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val axclass_instance_subclass =
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  gen_instance (single oo (Logic.mk_classrel oo AxClass.read_classrel)) AxClass.add_classrel I;
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val axclass_instance_arity =
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  gen_instance (Logic.mk_arities oo Sign.read_arity) AxClass.add_arity;
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val axclass_instance_arity_i =
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  gen_instance (Logic.mk_arities oo Sign.cert_arity) AxClass.add_arity;
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end;
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(* classes and instances *)
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local
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fun add_axclass_i (name, supsort) axs thy =
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  let
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    val (c, thy') = thy
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      |> AxClass.define_class_i (name, supsort) [] axs;
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    val {intro, axioms, ...} = AxClass.get_definition thy' c;
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  in ((c, (intro, axioms)), thy') end;
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fun prove_interpretation_i (prfx, atts) expr insts tac thy =
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  let
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    fun ad_hoc_term NONE = NONE
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      | ad_hoc_term (SOME (Const (c, ty))) =
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          let
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            val p = setmp show_types true (setmp show_sorts true (setmp print_mode [] (Sign.pretty_typ thy))) ty;
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            val s = c ^ "::" ^ Pretty.output p;
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            val _ = writeln s;
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          in SOME s end
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      | ad_hoc_term (SOME t) =
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          let
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            val p = setmp show_types true (setmp show_sorts true (setmp print_mode [] (Sign.pretty_term thy))) t;
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            val s = Pretty.output p;
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            val _ = writeln s;
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   319
          in SOME s end;
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  in
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   321
    thy
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    |> Locale.interpretation (prfx, atts) expr (map ad_hoc_term insts)
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    |> Proof.global_terminal_proof (Method.Basic (fn _ => Method.SIMPLE_METHOD tac), NONE)
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   324
    |-> (fn _ => I)
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   325
  end;
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   326
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   327
fun gen_class add_locale prep_class bname raw_supclasses raw_elems thy =
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   328
  let
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   329
    val supclasses = map (prep_class thy) raw_supclasses;
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    val supsort =
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      supclasses
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   332
      |> map (#name_axclass o the_class_data thy)
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      |> Sign.certify_sort thy
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   334
      |> null ? K (Sign.defaultS thy);
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   335
    val expr = (Locale.Merge o map (Locale.Locale o #name_locale o the_class_data thy)) supclasses;
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   336
    val mapp_sup = AList.make
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      (the o AList.lookup (op =) ((flat o map (the_parm_map thy) o the_ancestry thy) supclasses))
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      ((map (fst o fst) o Locale.parameters_of_expr thy) expr);
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   339
    fun extract_tyvar_consts thy name_locale =
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      let
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   341
        fun extract_tyvar_name thy tys =
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   342
          fold (curry add_typ_tfrees) tys []
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   343
          |> (fn [(v, sort)] =>
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   344
              if Sign.subsort thy (supsort, sort)
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   345
                    then v
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                    else error ("illegal sort constraint on class type variable: " ^ Sign.string_of_sort thy sort)
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               | [] => error ("no class type variable")
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               | vs => error ("more than one type variable: " ^ (commas o map (Sign.string_of_typ thy o TFree)) vs))
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        val consts1 =
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   350
          Locale.parameters_of thy name_locale
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   351
          |> map (apsnd Syntax.unlocalize_mixfix)
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        val v = (extract_tyvar_name thy o map (snd o fst)) consts1;
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   353
        val consts2 = map ((apfst o apsnd) (subst_clsvar v (TFree (v, [])))) consts1;
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   354
      in (v, chop (length mapp_sup) consts2) end;
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   355
    fun add_consts v raw_cs_sup raw_cs_this thy =
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   356
      let
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   357
        fun add_global_const ((c, ty), syn) thy =
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   358
          thy
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   359
          |> Sign.add_consts_i [(c, ty |> subst_clsvar v (TFree (v, Sign.defaultS thy)), syn)]
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   360
          |> `(fn thy => (c, (Sign.intern_const thy c, ty)))
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   361
      in
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   362
        thy
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   363
        |> fold_map add_global_const raw_cs_this
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   364
      end;
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   365
    fun extract_assumes thy name_locale cs_mapp =
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   366
      let
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   367
        val subst_assume =
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   368
          map_aterms (fn Free (c, ty) => Const ((fst o the o AList.lookup (op =) cs_mapp) c, ty)
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   369
                       | t => t)
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   370
        fun prep_asm ((name, atts), ts) =
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   371
          ((NameSpace.base name |> print, map (Attrib.attribute thy) atts), map subst_assume ts)
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   372
      in
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   373
        (map prep_asm o Locale.local_asms_of thy) name_locale
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   374
      end;
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   375
    fun add_global_constraint v class (_, (c, ty)) thy =
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   376
      thy
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   377
      |> Sign.add_const_constraint_i (c, SOME (subst_clsvar v (TFree (v, [class])) ty));
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   378
    fun mk_const thy class v (c, ty) =
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   379
      Const (c, subst_clsvar v (TFree (v, [class])) ty);
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   380
  in
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   381
    thy
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   382
    |> add_locale bname expr raw_elems
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   383
    |-> (fn (name_locale, ctxt) =>
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   384
          `(fn thy => extract_tyvar_consts thy name_locale)
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diff changeset
   385
    #-> (fn (v, (raw_cs_sup, raw_cs_this)) =>
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diff changeset
   386
          add_consts v raw_cs_sup raw_cs_this
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diff changeset
   387
    #-> (fn mapp_this =>
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diff changeset
   388
          `(fn thy => extract_assumes thy name_locale (mapp_sup @ mapp_this))
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diff changeset
   389
    #-> (fn loc_axioms =>
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diff changeset
   390
          add_axclass_i (bname, supsort) loc_axioms
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diff changeset
   391
    #-> (fn (name_axclass, (_, ax_axioms)) =>
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diff changeset
   392
          fold (add_global_constraint v name_axclass) mapp_this
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diff changeset
   393
    #> add_class_data (name_locale, (supclasses, name_locale, name_axclass, v, mapp_this))
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diff changeset
   394
    #> prove_interpretation_i (NameSpace.base name_locale, [])
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diff changeset
   395
          (Locale.Locale name_locale) (map (SOME o mk_const thy name_axclass v) (map snd (mapp_sup @ mapp_this)))
19929
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diff changeset
   396
          ((ALLGOALS o ProofContext.fact_tac) ax_axioms)
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diff changeset
   397
    #> pair ctxt
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diff changeset
   398
    )))))
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diff changeset
   399
  end;
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diff changeset
   400
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diff changeset
   401
in
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diff changeset
   402
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cb8472f4c5fd switched to open locales for classes
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diff changeset
   403
val class = gen_class (Locale.add_locale false) intern_class;
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parents: 19806
diff changeset
   404
val class_i = gen_class (Locale.add_locale_i false) certify_class;
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diff changeset
   405
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diff changeset
   406
end; (* local *)
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diff changeset
   407
19110
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diff changeset
   408
local
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diff changeset
   409
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diff changeset
   410
fun gen_add_defs_overloaded prep_att tap_def add_defs tyco raw_defs thy =
19038
62c5f7591a43 improved handling of iml abstractions
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diff changeset
   411
  let
19110
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diff changeset
   412
    fun invent_name raw_t =
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diff changeset
   413
      let
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diff changeset
   414
        val t = tap_def thy raw_t;
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diff changeset
   415
        val c = (fst o dest_Const o fst o strip_comb o fst o Logic.dest_equals) t;
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diff changeset
   416
      in
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diff changeset
   417
        Thm.def_name (NameSpace.base c ^ "_" ^ NameSpace.base tyco)
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diff changeset
   418
      end;
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diff changeset
   419
    fun prep_def (_, (("", a), t)) =
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diff changeset
   420
          let
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diff changeset
   421
            val n = invent_name t
4bda27adcd2e moved intro_classes from AxClass to ClassPackage
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diff changeset
   422
          in ((n, t), map (prep_att thy) a) end
4bda27adcd2e moved intro_classes from AxClass to ClassPackage
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diff changeset
   423
      | prep_def (_, ((n, a), t)) =
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diff changeset
   424
          ((n, t), map (prep_att thy) a);
4bda27adcd2e moved intro_classes from AxClass to ClassPackage
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diff changeset
   425
  in
4bda27adcd2e moved intro_classes from AxClass to ClassPackage
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diff changeset
   426
    thy
4bda27adcd2e moved intro_classes from AxClass to ClassPackage
haftmann
parents: 19102
diff changeset
   427
    |> add_defs true (map prep_def raw_defs)
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diff changeset
   428
  end;
4bda27adcd2e moved intro_classes from AxClass to ClassPackage
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parents: 19102
diff changeset
   429
4bda27adcd2e moved intro_classes from AxClass to ClassPackage
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diff changeset
   430
val add_defs_overloaded = gen_add_defs_overloaded Attrib.attribute Sign.read_term PureThy.add_defs;
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haftmann
parents: 19102
diff changeset
   431
val add_defs_overloaded_i = gen_add_defs_overloaded (K I) (K I) PureThy.add_defs_i;
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diff changeset
   432
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00ade10f611d some refinements
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diff changeset
   433
fun gen_instance_arity prep_arity prep_att add_defs tap_def do_proof raw_arity (raw_name, raw_atts) raw_defs theory =
19110
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diff changeset
   434
  let
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parents: 19102
diff changeset
   435
    val pp = Sign.pp theory;
4bda27adcd2e moved intro_classes from AxClass to ClassPackage
haftmann
parents: 19102
diff changeset
   436
    val arity as (tyco, asorts, sort) = prep_arity theory ((fn ((x, y), z) => (x, y, z)) raw_arity);
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62c5f7591a43 improved handling of iml abstractions
haftmann
parents: 18963
diff changeset
   437
    val ty_inst = Type (tyco, map2 (curry TVar o rpair 0) (Term.invent_names [] "'a" (length asorts)) asorts)
19136
00ade10f611d some refinements
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parents: 19134
diff changeset
   438
    val name = case raw_name
00ade10f611d some refinements
haftmann
parents: 19134
diff changeset
   439
     of "" => Thm.def_name ((space_implode "_" o map NameSpace.base) sort ^ "_" ^ NameSpace.base tyco)
00ade10f611d some refinements
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diff changeset
   440
      | _ => raw_name;
00ade10f611d some refinements
haftmann
parents: 19134
diff changeset
   441
    val atts = map (prep_att theory) raw_atts;
19110
4bda27adcd2e moved intro_classes from AxClass to ClassPackage
haftmann
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diff changeset
   442
    fun get_classes thy tyco sort =
19038
62c5f7591a43 improved handling of iml abstractions
haftmann
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diff changeset
   443
      let
19110
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haftmann
parents: 19102
diff changeset
   444
        fun get class classes =
19213
ee83040c3c84 first running version of type classes
haftmann
parents: 19150
diff changeset
   445
          if AList.defined (op =) ((the_instances thy) class) tyco
19110
4bda27adcd2e moved intro_classes from AxClass to ClassPackage
haftmann
parents: 19102
diff changeset
   446
            then classes
4bda27adcd2e moved intro_classes from AxClass to ClassPackage
haftmann
parents: 19102
diff changeset
   447
            else classes
4bda27adcd2e moved intro_classes from AxClass to ClassPackage
haftmann
parents: 19102
diff changeset
   448
              |> cons class
4bda27adcd2e moved intro_classes from AxClass to ClassPackage
haftmann
parents: 19102
diff changeset
   449
              |> fold get (the_superclasses thy class)
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haftmann
parents: 19102
diff changeset
   450
      in fold get sort [] end;
4bda27adcd2e moved intro_classes from AxClass to ClassPackage
haftmann
parents: 19102
diff changeset
   451
    val classes = get_classes theory tyco sort;
4bda27adcd2e moved intro_classes from AxClass to ClassPackage
haftmann
parents: 19102
diff changeset
   452
    val _ = if null classes then error ("already instantiated") else ();
4bda27adcd2e moved intro_classes from AxClass to ClassPackage
haftmann
parents: 19102
diff changeset
   453
    fun get_consts class =
4bda27adcd2e moved intro_classes from AxClass to ClassPackage
haftmann
parents: 19102
diff changeset
   454
      let
4bda27adcd2e moved intro_classes from AxClass to ClassPackage
haftmann
parents: 19102
diff changeset
   455
        val data = the_class_data theory class;
19038
62c5f7591a43 improved handling of iml abstractions
haftmann
parents: 18963
diff changeset
   456
        val subst_ty = map_type_tfree (fn (var as (v, _)) =>
62c5f7591a43 improved handling of iml abstractions
haftmann
parents: 18963
diff changeset
   457
          if #var data = v then ty_inst else TFree var)
19280
5091dc43817b slight improvement in serializer, stub for code generator theorems added
haftmann
parents: 19253
diff changeset
   458
      in (map (apsnd subst_ty o snd) o #consts) data end;
19468
0afdd5023bfc Sign.arity_sorts;
wenzelm
parents: 19456
diff changeset
   459
    val cs = (flat o map get_consts) classes;
19110
4bda27adcd2e moved intro_classes from AxClass to ClassPackage
haftmann
parents: 19102
diff changeset
   460
    fun get_remove_contraint c thy =
4bda27adcd2e moved intro_classes from AxClass to ClassPackage
haftmann
parents: 19102
diff changeset
   461
      let
4bda27adcd2e moved intro_classes from AxClass to ClassPackage
haftmann
parents: 19102
diff changeset
   462
        val ty = Sign.the_const_constraint thy c;
4bda27adcd2e moved intro_classes from AxClass to ClassPackage
haftmann
parents: 19102
diff changeset
   463
      in
4bda27adcd2e moved intro_classes from AxClass to ClassPackage
haftmann
parents: 19102
diff changeset
   464
        thy
4bda27adcd2e moved intro_classes from AxClass to ClassPackage
haftmann
parents: 19102
diff changeset
   465
        |> Sign.add_const_constraint_i (c, NONE)
19806
f860b7a98445 renamed Type.(un)varifyT to Logic.(un)varifyT;
wenzelm
parents: 19648
diff changeset
   466
        |> pair (c, Logic.legacy_unvarifyT ty)
19110
4bda27adcd2e moved intro_classes from AxClass to ClassPackage
haftmann
parents: 19102
diff changeset
   467
      end;
19253
f3ce97b5661a refined representation of instance dictionaries
haftmann
parents: 19246
diff changeset
   468
    fun check_defs0 thy raw_defs c_req =
19038
62c5f7591a43 improved handling of iml abstractions
haftmann
parents: 18963
diff changeset
   469
      let
62c5f7591a43 improved handling of iml abstractions
haftmann
parents: 18963
diff changeset
   470
        fun get_c raw_def =
19253
f3ce97b5661a refined representation of instance dictionaries
haftmann
parents: 19246
diff changeset
   471
          (fst o Sign.cert_def pp o tap_def thy o snd) raw_def;
19038
62c5f7591a43 improved handling of iml abstractions
haftmann
parents: 18963
diff changeset
   472
        val c_given = map get_c raw_defs;
19340
a4fe025ecd90 minor changes
haftmann
parents: 19300
diff changeset
   473
        fun eq_c ((c1 : string, ty1), (c2, ty2)) =
19038
62c5f7591a43 improved handling of iml abstractions
haftmann
parents: 18963
diff changeset
   474
          let
19806
f860b7a98445 renamed Type.(un)varifyT to Logic.(un)varifyT;
wenzelm
parents: 19648
diff changeset
   475
            val ty1' = Logic.legacy_varifyT ty1;
f860b7a98445 renamed Type.(un)varifyT to Logic.(un)varifyT;
wenzelm
parents: 19648
diff changeset
   476
            val ty2' = Logic.legacy_varifyT ty2;
19038
62c5f7591a43 improved handling of iml abstractions
haftmann
parents: 18963
diff changeset
   477
          in
62c5f7591a43 improved handling of iml abstractions
haftmann
parents: 18963
diff changeset
   478
            c1 = c2
19253
f3ce97b5661a refined representation of instance dictionaries
haftmann
parents: 19246
diff changeset
   479
            andalso Sign.typ_instance thy (ty1', ty2')
f3ce97b5661a refined representation of instance dictionaries
haftmann
parents: 19246
diff changeset
   480
            andalso Sign.typ_instance thy (ty2', ty1')
19038
62c5f7591a43 improved handling of iml abstractions
haftmann
parents: 18963
diff changeset
   481
          end;
19300
7689f81f8996 subtract (op =);
wenzelm
parents: 19293
diff changeset
   482
        val _ = case subtract eq_c c_req c_given
19038
62c5f7591a43 improved handling of iml abstractions
haftmann
parents: 18963
diff changeset
   483
         of [] => ()
62c5f7591a43 improved handling of iml abstractions
haftmann
parents: 18963
diff changeset
   484
          | cs => error ("superfluous definition(s) given for "
19253
f3ce97b5661a refined representation of instance dictionaries
haftmann
parents: 19246
diff changeset
   485
                    ^ (commas o map (fn (c, ty) => quote (c ^ "::" ^ Sign.string_of_typ thy ty))) cs);
19340
a4fe025ecd90 minor changes
haftmann
parents: 19300
diff changeset
   486
        (*val _ = case subtract eq_c c_given c_req
19110
4bda27adcd2e moved intro_classes from AxClass to ClassPackage
haftmann
parents: 19102
diff changeset
   487
         of [] => ()
19038
62c5f7591a43 improved handling of iml abstractions
haftmann
parents: 18963
diff changeset
   488
          | cs => error ("no definition(s) given for "
19340
a4fe025ecd90 minor changes
haftmann
parents: 19300
diff changeset
   489
                    ^ (commas o map (fn (c, ty) => quote (c ^ "::" ^ Sign.string_of_typ thy ty))) cs);*)
19253
f3ce97b5661a refined representation of instance dictionaries
haftmann
parents: 19246
diff changeset
   490
      in () end;
f3ce97b5661a refined representation of instance dictionaries
haftmann
parents: 19246
diff changeset
   491
    fun check_defs1 raw_defs c_req thy =
f3ce97b5661a refined representation of instance dictionaries
haftmann
parents: 19246
diff changeset
   492
      let
19518
5204c73a4d46 AxClass.define_class_i, AxClass.get_definition;
wenzelm
parents: 19482
diff changeset
   493
        val thy' = (Sign.primitive_arity (tyco, asorts, sort) o Theory.copy) thy
19253
f3ce97b5661a refined representation of instance dictionaries
haftmann
parents: 19246
diff changeset
   494
      in (check_defs0 thy' raw_defs c_req; thy) end;
19110
4bda27adcd2e moved intro_classes from AxClass to ClassPackage
haftmann
parents: 19102
diff changeset
   495
    fun mangle_alldef_name tyco sort =
4bda27adcd2e moved intro_classes from AxClass to ClassPackage
haftmann
parents: 19102
diff changeset
   496
      Thm.def_name ((space_implode "_" o map NameSpace.base) sort ^ "_" ^ NameSpace.base tyco);
4bda27adcd2e moved intro_classes from AxClass to ClassPackage
haftmann
parents: 19102
diff changeset
   497
    fun note_all tyco sort thms thy =
4bda27adcd2e moved intro_classes from AxClass to ClassPackage
haftmann
parents: 19102
diff changeset
   498
      thy
19136
00ade10f611d some refinements
haftmann
parents: 19134
diff changeset
   499
      |> PureThy.note_thmss_i PureThy.internalK [((name, atts), [(thms, [])])]
19110
4bda27adcd2e moved intro_classes from AxClass to ClassPackage
haftmann
parents: 19102
diff changeset
   500
      |> snd;
4bda27adcd2e moved intro_classes from AxClass to ClassPackage
haftmann
parents: 19102
diff changeset
   501
    fun after_qed cs thy =
4bda27adcd2e moved intro_classes from AxClass to ClassPackage
haftmann
parents: 19102
diff changeset
   502
      thy
19253
f3ce97b5661a refined representation of instance dictionaries
haftmann
parents: 19246
diff changeset
   503
      |> fold (fn class =>
f3ce97b5661a refined representation of instance dictionaries
haftmann
parents: 19246
diff changeset
   504
        add_inst_data (class, (tyco,
19412
cc08bcabdcd2 classes: prefer thy operations;
wenzelm
parents: 19395
diff changeset
   505
          (map (operational_sort_of thy) asorts, Context.theory_name thy)))) sort
cc08bcabdcd2 classes: prefer thy operations;
wenzelm
parents: 19395
diff changeset
   506
      |> fold Sign.add_const_constraint_i (map (apsnd SOME) cs);
19038
62c5f7591a43 improved handling of iml abstractions
haftmann
parents: 18963
diff changeset
   507
  in
19110
4bda27adcd2e moved intro_classes from AxClass to ClassPackage
haftmann
parents: 19102
diff changeset
   508
    theory
19253
f3ce97b5661a refined representation of instance dictionaries
haftmann
parents: 19246
diff changeset
   509
    |> check_defs1 raw_defs cs
19110
4bda27adcd2e moved intro_classes from AxClass to ClassPackage
haftmann
parents: 19102
diff changeset
   510
    |> fold_map get_remove_contraint (map fst cs)
4bda27adcd2e moved intro_classes from AxClass to ClassPackage
haftmann
parents: 19102
diff changeset
   511
    ||>> add_defs tyco (map (pair NONE) raw_defs)
4bda27adcd2e moved intro_classes from AxClass to ClassPackage
haftmann
parents: 19102
diff changeset
   512
    |-> (fn (cs, defnames) => note_all tyco sort defnames #> pair cs)
4bda27adcd2e moved intro_classes from AxClass to ClassPackage
haftmann
parents: 19102
diff changeset
   513
    |-> (fn cs => do_proof (after_qed cs) arity)
19038
62c5f7591a43 improved handling of iml abstractions
haftmann
parents: 18963
diff changeset
   514
  end;
62c5f7591a43 improved handling of iml abstractions
haftmann
parents: 18963
diff changeset
   515
19246
aa45f5e456d3 added axclass_instance_XXX (from axclass.ML);
wenzelm
parents: 19233
diff changeset
   516
fun instance_arity' do_proof = gen_instance_arity Sign.read_arity Attrib.attribute add_defs_overloaded
19110
4bda27adcd2e moved intro_classes from AxClass to ClassPackage
haftmann
parents: 19102
diff changeset
   517
  (fn thy => fn t => (snd o read_axm thy) ("", t)) do_proof;
19246
aa45f5e456d3 added axclass_instance_XXX (from axclass.ML);
wenzelm
parents: 19233
diff changeset
   518
fun instance_arity_i' do_proof = gen_instance_arity Sign.cert_arity (K I) add_defs_overloaded_i
19110
4bda27adcd2e moved intro_classes from AxClass to ClassPackage
haftmann
parents: 19102
diff changeset
   519
  (K I) do_proof;
19246
aa45f5e456d3 added axclass_instance_XXX (from axclass.ML);
wenzelm
parents: 19233
diff changeset
   520
val setup_proof = axclass_instance_arity_i;
aa45f5e456d3 added axclass_instance_XXX (from axclass.ML);
wenzelm
parents: 19233
diff changeset
   521
fun tactic_proof tac after_qed arity = AxClass.prove_arity arity tac #> after_qed;
19110
4bda27adcd2e moved intro_classes from AxClass to ClassPackage
haftmann
parents: 19102
diff changeset
   522
4bda27adcd2e moved intro_classes from AxClass to ClassPackage
haftmann
parents: 19102
diff changeset
   523
in
4bda27adcd2e moved intro_classes from AxClass to ClassPackage
haftmann
parents: 19102
diff changeset
   524
19150
1457d810b408 class package and codegen refinements
haftmann
parents: 19136
diff changeset
   525
val instance_arity = instance_arity' setup_proof;
1457d810b408 class package and codegen refinements
haftmann
parents: 19136
diff changeset
   526
val instance_arity_i = instance_arity_i' setup_proof;
1457d810b408 class package and codegen refinements
haftmann
parents: 19136
diff changeset
   527
val prove_instance_arity = instance_arity_i' o tactic_proof;
19110
4bda27adcd2e moved intro_classes from AxClass to ClassPackage
haftmann
parents: 19102
diff changeset
   528
4bda27adcd2e moved intro_classes from AxClass to ClassPackage
haftmann
parents: 19102
diff changeset
   529
end; (* local *)
4bda27adcd2e moved intro_classes from AxClass to ClassPackage
haftmann
parents: 19102
diff changeset
   530
4bda27adcd2e moved intro_classes from AxClass to ClassPackage
haftmann
parents: 19102
diff changeset
   531
local
4bda27adcd2e moved intro_classes from AxClass to ClassPackage
haftmann
parents: 19102
diff changeset
   532
19136
00ade10f611d some refinements
haftmann
parents: 19134
diff changeset
   533
fun fish_thms (name, expr) after_qed thy =
00ade10f611d some refinements
haftmann
parents: 19134
diff changeset
   534
  let
00ade10f611d some refinements
haftmann
parents: 19134
diff changeset
   535
    val _ = writeln ("sub " ^ name)
00ade10f611d some refinements
haftmann
parents: 19134
diff changeset
   536
    val suplocales = (fn Locale.Merge es => map (fn Locale.Locale n => n) es) expr;
00ade10f611d some refinements
haftmann
parents: 19134
diff changeset
   537
    val _ = writeln ("super " ^ commas suplocales)
19280
5091dc43817b slight improvement in serializer, stub for code generator theorems added
haftmann
parents: 19253
diff changeset
   538
    fun get_c name =
19136
00ade10f611d some refinements
haftmann
parents: 19134
diff changeset
   539
      (map (NameSpace.base o fst o fst) o Locale.parameters_of thy) name;
00ade10f611d some refinements
haftmann
parents: 19134
diff changeset
   540
    fun get_a name =
00ade10f611d some refinements
haftmann
parents: 19134
diff changeset
   541
      (map (NameSpace.base o fst o fst) o Locale.local_asms_of thy) name;
00ade10f611d some refinements
haftmann
parents: 19134
diff changeset
   542
    fun get_t supname =
00ade10f611d some refinements
haftmann
parents: 19134
diff changeset
   543
      map (NameSpace.append (NameSpace.append name ((space_implode "_" o get_c) supname)) o NameSpace.base)
00ade10f611d some refinements
haftmann
parents: 19134
diff changeset
   544
        (get_a name);
00ade10f611d some refinements
haftmann
parents: 19134
diff changeset
   545
    val names = map get_t suplocales;
00ade10f611d some refinements
haftmann
parents: 19134
diff changeset
   546
    val _ = writeln ("fishing for " ^ (commas o map commas) names);
00ade10f611d some refinements
haftmann
parents: 19134
diff changeset
   547
  in
00ade10f611d some refinements
haftmann
parents: 19134
diff changeset
   548
    thy
00ade10f611d some refinements
haftmann
parents: 19134
diff changeset
   549
    |> after_qed ((map o map) (Drule.standard o get_thm thy o Name) names)
00ade10f611d some refinements
haftmann
parents: 19134
diff changeset
   550
  end;
00ade10f611d some refinements
haftmann
parents: 19134
diff changeset
   551
00ade10f611d some refinements
haftmann
parents: 19134
diff changeset
   552
fun add_interpretation_in (after_qed : thm list list -> theory -> theory) (name, expr) thy =
00ade10f611d some refinements
haftmann
parents: 19134
diff changeset
   553
  thy
00ade10f611d some refinements
haftmann
parents: 19134
diff changeset
   554
  |> Locale.interpretation_in_locale (name, expr);
00ade10f611d some refinements
haftmann
parents: 19134
diff changeset
   555
00ade10f611d some refinements
haftmann
parents: 19134
diff changeset
   556
fun prove_interpretation_in tac (after_qed : thm list list -> theory -> theory) (name, expr) thy =
00ade10f611d some refinements
haftmann
parents: 19134
diff changeset
   557
  thy
00ade10f611d some refinements
haftmann
parents: 19134
diff changeset
   558
  |> Locale.interpretation_in_locale (name, expr)
00ade10f611d some refinements
haftmann
parents: 19134
diff changeset
   559
  |> Proof.global_terminal_proof (Method.Basic (fn _ => Method.SIMPLE_METHOD tac), NONE)
00ade10f611d some refinements
haftmann
parents: 19134
diff changeset
   560
  |-> (fn _ => I);
19038
62c5f7591a43 improved handling of iml abstractions
haftmann
parents: 18963
diff changeset
   561
19150
1457d810b408 class package and codegen refinements
haftmann
parents: 19136
diff changeset
   562
fun gen_instance_sort prep_class prep_sort do_proof (raw_class, raw_sort) theory =
19110
4bda27adcd2e moved intro_classes from AxClass to ClassPackage
haftmann
parents: 19102
diff changeset
   563
  let
4bda27adcd2e moved intro_classes from AxClass to ClassPackage
haftmann
parents: 19102
diff changeset
   564
    val class = prep_class theory raw_class;
4bda27adcd2e moved intro_classes from AxClass to ClassPackage
haftmann
parents: 19102
diff changeset
   565
    val sort = prep_sort theory raw_sort;
19136
00ade10f611d some refinements
haftmann
parents: 19134
diff changeset
   566
    val loc_name = (#name_locale o the_class_data theory) class;
19468
0afdd5023bfc Sign.arity_sorts;
wenzelm
parents: 19456
diff changeset
   567
    val loc_expr =
0afdd5023bfc Sign.arity_sorts;
wenzelm
parents: 19456
diff changeset
   568
      (Locale.Merge o map (Locale.Locale o #name_locale o the_class_data theory)) sort;
19136
00ade10f611d some refinements
haftmann
parents: 19134
diff changeset
   569
    fun after_qed thmss thy =
19468
0afdd5023bfc Sign.arity_sorts;
wenzelm
parents: 19456
diff changeset
   570
      (writeln "---"; (Pretty.writeln o Display.pretty_thms o flat) thmss; writeln "---"; fold (fn supclass =>
19412
cc08bcabdcd2 classes: prefer thy operations;
wenzelm
parents: 19395
diff changeset
   571
        AxClass.prove_classrel (class, supclass)
19136
00ade10f611d some refinements
haftmann
parents: 19134
diff changeset
   572
          (ALLGOALS (K (intro_classes_tac [])) THEN
19468
0afdd5023bfc Sign.arity_sorts;
wenzelm
parents: 19456
diff changeset
   573
            (ALLGOALS o resolve_tac o flat) thmss)
19136
00ade10f611d some refinements
haftmann
parents: 19134
diff changeset
   574
      ) sort thy)
19110
4bda27adcd2e moved intro_classes from AxClass to ClassPackage
haftmann
parents: 19102
diff changeset
   575
  in
4bda27adcd2e moved intro_classes from AxClass to ClassPackage
haftmann
parents: 19102
diff changeset
   576
    theory
19136
00ade10f611d some refinements
haftmann
parents: 19134
diff changeset
   577
    |> do_proof after_qed (loc_name, loc_expr)
19110
4bda27adcd2e moved intro_classes from AxClass to ClassPackage
haftmann
parents: 19102
diff changeset
   578
  end;
4bda27adcd2e moved intro_classes from AxClass to ClassPackage
haftmann
parents: 19102
diff changeset
   579
19150
1457d810b408 class package and codegen refinements
haftmann
parents: 19136
diff changeset
   580
fun instance_sort' do_proof = gen_instance_sort intern_class read_sort do_proof;
1457d810b408 class package and codegen refinements
haftmann
parents: 19136
diff changeset
   581
fun instance_sort_i' do_proof = gen_instance_sort certify_class certify_sort do_proof;
19136
00ade10f611d some refinements
haftmann
parents: 19134
diff changeset
   582
val setup_proof = add_interpretation_in;
00ade10f611d some refinements
haftmann
parents: 19134
diff changeset
   583
val tactic_proof = prove_interpretation_in;
19110
4bda27adcd2e moved intro_classes from AxClass to ClassPackage
haftmann
parents: 19102
diff changeset
   584
4bda27adcd2e moved intro_classes from AxClass to ClassPackage
haftmann
parents: 19102
diff changeset
   585
in
4bda27adcd2e moved intro_classes from AxClass to ClassPackage
haftmann
parents: 19102
diff changeset
   586
19150
1457d810b408 class package and codegen refinements
haftmann
parents: 19136
diff changeset
   587
val instance_sort = instance_sort' setup_proof;
1457d810b408 class package and codegen refinements
haftmann
parents: 19136
diff changeset
   588
val instance_sort_i = instance_sort_i' setup_proof;
1457d810b408 class package and codegen refinements
haftmann
parents: 19136
diff changeset
   589
val prove_instance_sort = instance_sort_i' o tactic_proof;
19110
4bda27adcd2e moved intro_classes from AxClass to ClassPackage
haftmann
parents: 19102
diff changeset
   590
4bda27adcd2e moved intro_classes from AxClass to ClassPackage
haftmann
parents: 19102
diff changeset
   591
end; (* local *)
19038
62c5f7591a43 improved handling of iml abstractions
haftmann
parents: 18963
diff changeset
   592
18168
d35daf321b8a class_package - operational view on type classes
haftmann
parents:
diff changeset
   593
(* extracting dictionary obligations from types *)
d35daf321b8a class_package - operational view on type classes
haftmann
parents:
diff changeset
   594
d35daf321b8a class_package - operational view on type classes
haftmann
parents:
diff changeset
   595
type sortcontext = (string * sort) list;
d35daf321b8a class_package - operational view on type classes
haftmann
parents:
diff changeset
   596
19953
2f54a51f1801 class package refinements, slight code generation refinements
haftmann
parents: 19929
diff changeset
   597
fun sortcontext_of_typ thy ty =
18702
7dc7dcd63224 substantial improvements in code generator
haftmann
parents: 18670
diff changeset
   598
  (typ_tfrees o fst o Type.freeze_thaw_type) ty
18884
df1e3c93c50a name clarifications
haftmann
parents: 18864
diff changeset
   599
  |> map (apsnd (operational_sort_of thy))
18168
d35daf321b8a class_package - operational view on type classes
haftmann
parents:
diff changeset
   600
  |> filter (not o null o snd);
d35daf321b8a class_package - operational view on type classes
haftmann
parents:
diff changeset
   601
18884
df1e3c93c50a name clarifications
haftmann
parents: 18864
diff changeset
   602
datatype classlookup = Instance of (class * string) * classlookup list list
19253
f3ce97b5661a refined representation of instance dictionaries
haftmann
parents: 19246
diff changeset
   603
                     | Lookup of class list * (string * (int * int))
19213
ee83040c3c84 first running version of type classes
haftmann
parents: 19150
diff changeset
   604
ee83040c3c84 first running version of type classes
haftmann
parents: 19150
diff changeset
   605
fun pretty_lookup' (Instance ((class, tyco), lss)) =
ee83040c3c84 first running version of type classes
haftmann
parents: 19150
diff changeset
   606
      (Pretty.block o Pretty.breaks) (
ee83040c3c84 first running version of type classes
haftmann
parents: 19150
diff changeset
   607
        Pretty.enum "," "{" "}" [Pretty.str class, Pretty.str tyco]
ee83040c3c84 first running version of type classes
haftmann
parents: 19150
diff changeset
   608
        :: map pretty_lookup lss
ee83040c3c84 first running version of type classes
haftmann
parents: 19150
diff changeset
   609
      )
19253
f3ce97b5661a refined representation of instance dictionaries
haftmann
parents: 19246
diff changeset
   610
  | pretty_lookup' (Lookup (classes, (v, (i, j)))) =
19953
2f54a51f1801 class package refinements, slight code generation refinements
haftmann
parents: 19929
diff changeset
   611
      Pretty.enum " <" "[" "]" (map Pretty.str classes @
2f54a51f1801 class package refinements, slight code generation refinements
haftmann
parents: 19929
diff changeset
   612
        [Pretty.str (v ^ "!" ^ string_of_int i ^ "/" ^ string_of_int j)])
19213
ee83040c3c84 first running version of type classes
haftmann
parents: 19150
diff changeset
   613
and pretty_lookup ls = (Pretty.enum "," "(" ")" o map pretty_lookup') ls;
18168
d35daf321b8a class_package - operational view on type classes
haftmann
parents:
diff changeset
   614
19953
2f54a51f1801 class package refinements, slight code generation refinements
haftmann
parents: 19929
diff changeset
   615
fun sortlookup thy (sort_decl, typ_ctxt) =
18168
d35daf321b8a class_package - operational view on type classes
haftmann
parents:
diff changeset
   616
  let
19953
2f54a51f1801 class package refinements, slight code generation refinements
haftmann
parents: 19929
diff changeset
   617
    val pp = Sign.pp thy;
2f54a51f1801 class package refinements, slight code generation refinements
haftmann
parents: 19929
diff changeset
   618
    val algebra = Sorts.project_algebra pp (is_operational_class thy)
2f54a51f1801 class package refinements, slight code generation refinements
haftmann
parents: 19929
diff changeset
   619
      (Sign.classes_of thy);
2f54a51f1801 class package refinements, slight code generation refinements
haftmann
parents: 19929
diff changeset
   620
    fun classrel (l as Lookup (classes, p), _) class  =
2f54a51f1801 class package refinements, slight code generation refinements
haftmann
parents: 19929
diff changeset
   621
          Lookup (class :: classes, p)
2f54a51f1801 class package refinements, slight code generation refinements
haftmann
parents: 19929
diff changeset
   622
      | classrel (Instance ((_, tyco), lss), _) class =
2f54a51f1801 class package refinements, slight code generation refinements
haftmann
parents: 19929
diff changeset
   623
          Instance ((class, tyco), lss);
2f54a51f1801 class package refinements, slight code generation refinements
haftmann
parents: 19929
diff changeset
   624
    fun constructor tyco lss class =
2f54a51f1801 class package refinements, slight code generation refinements
haftmann
parents: 19929
diff changeset
   625
      Instance ((class, tyco), (map o map) fst lss)
2f54a51f1801 class package refinements, slight code generation refinements
haftmann
parents: 19929
diff changeset
   626
    fun variable (TFree (v, sort)) =
2f54a51f1801 class package refinements, slight code generation refinements
haftmann
parents: 19929
diff changeset
   627
          map_index (fn (n, class) => (Lookup ([], (v, (n, length sort))), class))
2f54a51f1801 class package refinements, slight code generation refinements
haftmann
parents: 19929
diff changeset
   628
            (operational_sort_of thy sort)
2f54a51f1801 class package refinements, slight code generation refinements
haftmann
parents: 19929
diff changeset
   629
      | variable (TVar _) = error "TVar encountered while deriving sortlookup";
18864
a87c0aeae92f more coherent lookup extraction functions
haftmann
parents: 18849
diff changeset
   630
  in
19953
2f54a51f1801 class package refinements, slight code generation refinements
haftmann
parents: 19929
diff changeset
   631
    Sorts.of_sort_derivation pp algebra
2f54a51f1801 class package refinements, slight code generation refinements
haftmann
parents: 19929
diff changeset
   632
      {classrel = classrel, constructor = constructor, variable = variable}
2f54a51f1801 class package refinements, slight code generation refinements
haftmann
parents: 19929
diff changeset
   633
      (typ_ctxt, operational_sort_of thy sort_decl)
18864
a87c0aeae92f more coherent lookup extraction functions
haftmann
parents: 18849
diff changeset
   634
  end;
a87c0aeae92f more coherent lookup extraction functions
haftmann
parents: 18849
diff changeset
   635
19953
2f54a51f1801 class package refinements, slight code generation refinements
haftmann
parents: 19929
diff changeset
   636
fun sortlookups_const thy (c, typ_ctxt) =
18864
a87c0aeae92f more coherent lookup extraction functions
haftmann
parents: 18849
diff changeset
   637
  let
19953
2f54a51f1801 class package refinements, slight code generation refinements
haftmann
parents: 19929
diff changeset
   638
    val typ_decl = case lookup_const_class thy c
2f54a51f1801 class package refinements, slight code generation refinements
haftmann
parents: 19929
diff changeset
   639
     of NONE => Sign.the_const_type thy c
2f54a51f1801 class package refinements, slight code generation refinements
haftmann
parents: 19929
diff changeset
   640
      | SOME class => case the_consts_sign thy class of (v, cs) =>
2f54a51f1801 class package refinements, slight code generation refinements
haftmann
parents: 19929
diff changeset
   641
          (Logic.legacy_varifyT o subst_clsvar v (TFree (v, [class])))
2f54a51f1801 class package refinements, slight code generation refinements
haftmann
parents: 19929
diff changeset
   642
          ((the o AList.lookup (op =) cs) c)
2f54a51f1801 class package refinements, slight code generation refinements
haftmann
parents: 19929
diff changeset
   643
    val vartab = typ_tvars typ_decl;
2f54a51f1801 class package refinements, slight code generation refinements
haftmann
parents: 19929
diff changeset
   644
    fun prep_vartab (v, (_, ty)) =
2f54a51f1801 class package refinements, slight code generation refinements
haftmann
parents: 19929
diff changeset
   645
      case (the o AList.lookup (op =) vartab) v
2f54a51f1801 class package refinements, slight code generation refinements
haftmann
parents: 19929
diff changeset
   646
       of [] => NONE
2f54a51f1801 class package refinements, slight code generation refinements
haftmann
parents: 19929
diff changeset
   647
        | sort => SOME (sort, ty);
18168
d35daf321b8a class_package - operational view on type classes
haftmann
parents:
diff changeset
   648
  in
19953
2f54a51f1801 class package refinements, slight code generation refinements
haftmann
parents: 19929
diff changeset
   649
    Vartab.empty
2f54a51f1801 class package refinements, slight code generation refinements
haftmann
parents: 19929
diff changeset
   650
    |> Sign.typ_match thy (typ_decl, typ_ctxt)
2f54a51f1801 class package refinements, slight code generation refinements
haftmann
parents: 19929
diff changeset
   651
    |> Vartab.dest
2f54a51f1801 class package refinements, slight code generation refinements
haftmann
parents: 19929
diff changeset
   652
    |> map_filter prep_vartab
2f54a51f1801 class package refinements, slight code generation refinements
haftmann
parents: 19929
diff changeset
   653
    |> map (sortlookup thy)
2f54a51f1801 class package refinements, slight code generation refinements
haftmann
parents: 19929
diff changeset
   654
    |> filter_out null
18168
d35daf321b8a class_package - operational view on type classes
haftmann
parents:
diff changeset
   655
  end;
d35daf321b8a class_package - operational view on type classes
haftmann
parents:
diff changeset
   656
18884
df1e3c93c50a name clarifications
haftmann
parents: 18864
diff changeset
   657
18515
1cad5c2b2a0b substantial improvements in code generating
haftmann
parents: 18380
diff changeset
   658
(* toplevel interface *)
1cad5c2b2a0b substantial improvements in code generating
haftmann
parents: 18380
diff changeset
   659
1cad5c2b2a0b substantial improvements in code generating
haftmann
parents: 18380
diff changeset
   660
local
1cad5c2b2a0b substantial improvements in code generating
haftmann
parents: 18380
diff changeset
   661
1cad5c2b2a0b substantial improvements in code generating
haftmann
parents: 18380
diff changeset
   662
structure P = OuterParse
1cad5c2b2a0b substantial improvements in code generating
haftmann
parents: 18380
diff changeset
   663
and K = OuterKeyword
1cad5c2b2a0b substantial improvements in code generating
haftmann
parents: 18380
diff changeset
   664
1cad5c2b2a0b substantial improvements in code generating
haftmann
parents: 18380
diff changeset
   665
in
1cad5c2b2a0b substantial improvements in code generating
haftmann
parents: 18380
diff changeset
   666
18849
05a16861d3a5 added three times overloaded Isar instance command
haftmann
parents: 18829
diff changeset
   667
val (classK, instanceK) = ("class", "instance")
18515
1cad5c2b2a0b substantial improvements in code generating
haftmann
parents: 18380
diff changeset
   668
19253
f3ce97b5661a refined representation of instance dictionaries
haftmann
parents: 19246
diff changeset
   669
val use_cp_instance = ref false;
f3ce97b5661a refined representation of instance dictionaries
haftmann
parents: 19246
diff changeset
   670
19136
00ade10f611d some refinements
haftmann
parents: 19134
diff changeset
   671
fun wrap_add_instance_subclass (class, sort) thy =
00ade10f611d some refinements
haftmann
parents: 19134
diff changeset
   672
  case Sign.read_sort thy sort
00ade10f611d some refinements
haftmann
parents: 19134
diff changeset
   673
   of [class'] =>
19253
f3ce97b5661a refined representation of instance dictionaries
haftmann
parents: 19246
diff changeset
   674
      if ! use_cp_instance
f3ce97b5661a refined representation of instance dictionaries
haftmann
parents: 19246
diff changeset
   675
        andalso (is_some o lookup_class_data thy o Sign.intern_class thy) class
19136
00ade10f611d some refinements
haftmann
parents: 19134
diff changeset
   676
        andalso (is_some o lookup_class_data thy o Sign.intern_class thy) class'
00ade10f611d some refinements
haftmann
parents: 19134
diff changeset
   677
      then
19150
1457d810b408 class package and codegen refinements
haftmann
parents: 19136
diff changeset
   678
        instance_sort (class, sort) thy
19136
00ade10f611d some refinements
haftmann
parents: 19134
diff changeset
   679
      else
19246
aa45f5e456d3 added axclass_instance_XXX (from axclass.ML);
wenzelm
parents: 19233
diff changeset
   680
        axclass_instance_subclass (class, sort) thy
19150
1457d810b408 class package and codegen refinements
haftmann
parents: 19136
diff changeset
   681
    | _ => instance_sort (class, sort) thy;
19136
00ade10f611d some refinements
haftmann
parents: 19134
diff changeset
   682
18911
74edab16166f alternative syntax for instances
haftmann
parents: 18884
diff changeset
   683
val parse_inst =
19136
00ade10f611d some refinements
haftmann
parents: 19134
diff changeset
   684
  (Scan.optional (P.$$$ "(" |-- P.!!! (P.list1 P.sort --| P.$$$ ")")) [] -- P.xname --| P.$$$ "::" -- P.sort)
00ade10f611d some refinements
haftmann
parents: 19134
diff changeset
   685
    >> (fn ((asorts, tyco), sort) => ((tyco, asorts), sort))
00ade10f611d some refinements
haftmann
parents: 19134
diff changeset
   686
  || (P.xname --| P.$$$ "::" -- P.!!! P.arity)
00ade10f611d some refinements
haftmann
parents: 19134
diff changeset
   687
    >> (fn (tyco, (asorts, sort)) => ((tyco, asorts), sort));
18911
74edab16166f alternative syntax for instances
haftmann
parents: 18884
diff changeset
   688
19038
62c5f7591a43 improved handling of iml abstractions
haftmann
parents: 18963
diff changeset
   689
val locale_val =
62c5f7591a43 improved handling of iml abstractions
haftmann
parents: 18963
diff changeset
   690
  (P.locale_expr --
62c5f7591a43 improved handling of iml abstractions
haftmann
parents: 18963
diff changeset
   691
    Scan.optional (P.$$$ "+" |-- P.!!! (Scan.repeat1 P.context_element)) [] ||
62c5f7591a43 improved handling of iml abstractions
haftmann
parents: 18963
diff changeset
   692
  Scan.repeat1 P.context_element >> pair Locale.empty);
62c5f7591a43 improved handling of iml abstractions
haftmann
parents: 18963
diff changeset
   693
19280
5091dc43817b slight improvement in serializer, stub for code generator theorems added
haftmann
parents: 19253
diff changeset
   694
val class_subP = P.name -- Scan.repeat (P.$$$ "+" |-- P.name) >> (op ::);
5091dc43817b slight improvement in serializer, stub for code generator theorems added
haftmann
parents: 19253
diff changeset
   695
val class_bodyP = P.!!! (Scan.repeat1 P.context_element);
5091dc43817b slight improvement in serializer, stub for code generator theorems added
haftmann
parents: 19253
diff changeset
   696
18515
1cad5c2b2a0b substantial improvements in code generating
haftmann
parents: 18380
diff changeset
   697
val classP =
18849
05a16861d3a5 added three times overloaded Isar instance command
haftmann
parents: 18829
diff changeset
   698
  OuterSyntax.command classK "operational type classes" K.thy_decl (
05a16861d3a5 added three times overloaded Isar instance command
haftmann
parents: 18829
diff changeset
   699
    P.name --| P.$$$ "="
19280
5091dc43817b slight improvement in serializer, stub for code generator theorems added
haftmann
parents: 19253
diff changeset
   700
    -- (
5091dc43817b slight improvement in serializer, stub for code generator theorems added
haftmann
parents: 19253
diff changeset
   701
      class_subP --| P.$$$ "+" -- class_bodyP
5091dc43817b slight improvement in serializer, stub for code generator theorems added
haftmann
parents: 19253
diff changeset
   702
      || class_subP >> rpair []
5091dc43817b slight improvement in serializer, stub for code generator theorems added
haftmann
parents: 19253
diff changeset
   703
      || class_bodyP >> pair []
5091dc43817b slight improvement in serializer, stub for code generator theorems added
haftmann
parents: 19253
diff changeset
   704
    ) >> (Toplevel.theory_context
5091dc43817b slight improvement in serializer, stub for code generator theorems added
haftmann
parents: 19253
diff changeset
   705
          o (fn (bname, (supclasses, elems)) => class bname supclasses elems)));
18515
1cad5c2b2a0b substantial improvements in code generating
haftmann
parents: 18380
diff changeset
   706
18575
9ccfd1d1e874 substantial additions using locales
haftmann
parents: 18550
diff changeset
   707
val instanceP =
18849
05a16861d3a5 added three times overloaded Isar instance command
haftmann
parents: 18829
diff changeset
   708
  OuterSyntax.command instanceK "prove type arity or subclass relation" K.thy_goal ((
19136
00ade10f611d some refinements
haftmann
parents: 19134
diff changeset
   709
      P.xname -- ((P.$$$ "\\<subseteq>" || P.$$$ "<") |-- P.!!! P.xname) >> wrap_add_instance_subclass
00ade10f611d some refinements
haftmann
parents: 19134
diff changeset
   710
      || P.opt_thm_name ":" -- (parse_inst -- Scan.repeat (P.opt_thm_name ":" -- P.prop))
19246
aa45f5e456d3 added axclass_instance_XXX (from axclass.ML);
wenzelm
parents: 19233
diff changeset
   711
           >> (fn (("", []), (((tyco, asorts), sort), [])) => axclass_instance_arity I (tyco, asorts, sort)
19150
1457d810b408 class package and codegen refinements
haftmann
parents: 19136
diff changeset
   712
                | (natts, (inst, defs)) => instance_arity inst natts defs)
18849
05a16861d3a5 added three times overloaded Isar instance command
haftmann
parents: 18829
diff changeset
   713
    ) >> (Toplevel.print oo Toplevel.theory_to_proof));
18575
9ccfd1d1e874 substantial additions using locales
haftmann
parents: 18550
diff changeset
   714
19110
4bda27adcd2e moved intro_classes from AxClass to ClassPackage
haftmann
parents: 19102
diff changeset
   715
val _ = OuterSyntax.add_parsers [classP, instanceP];
4bda27adcd2e moved intro_classes from AxClass to ClassPackage
haftmann
parents: 19102
diff changeset
   716
18515
1cad5c2b2a0b substantial improvements in code generating
haftmann
parents: 18380
diff changeset
   717
end; (* local *)
1cad5c2b2a0b substantial improvements in code generating
haftmann
parents: 18380
diff changeset
   718
18168
d35daf321b8a class_package - operational view on type classes
haftmann
parents:
diff changeset
   719
end; (* struct *)