src/Tools/Code/code_preproc.ML
author wenzelm
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permissive AList.merge -- most likely setup for theory data (beware of spurious AList.DUP);
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(*  Title:      Tools/code/code_preproc.ML
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    Author:     Florian Haftmann, TU Muenchen
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Preprocessing code equations into a well-sorted system
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in a graph with explicit dependencies.
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*)
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signature CODE_PREPROC =
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sig
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  val map_pre: (simpset -> simpset) -> theory -> theory
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  val map_post: (simpset -> simpset) -> theory -> theory
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  val add_unfold: thm -> theory -> theory
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  val add_functrans: string * (theory -> (thm * bool) list -> (thm * bool) list option) -> theory -> theory
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  val del_functrans: string -> theory -> theory
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  val simple_functrans: (theory -> thm list -> thm list option)
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    -> theory -> (thm * bool) list -> (thm * bool) list option
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  val print_codeproc: theory -> unit
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  type code_algebra
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  type code_graph
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  val eqns: code_graph -> string -> (thm * bool) list
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  val sortargs: code_graph -> string -> sort list
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  val all: code_graph -> string list
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  val pretty: theory -> code_graph -> Pretty.T
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  val obtain: theory -> string list -> term list -> code_algebra * code_graph
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  val eval_conv: theory
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    -> (code_algebra -> code_graph -> (string * sort) list -> term -> cterm -> thm) -> cterm -> thm
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  val eval: theory -> ((term -> term) -> 'a -> 'a)
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    -> (code_algebra -> code_graph -> (string * sort) list -> term -> 'a) -> term -> 'a
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  val setup: theory -> theory
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end
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structure Code_Preproc : CODE_PREPROC =
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struct
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(** preprocessor administration **)
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(* theory data *)
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datatype thmproc = Thmproc of {
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  pre: simpset,
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  post: simpset,
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  functrans: (string * (serial * (theory -> (thm * bool) list -> (thm * bool) list option))) list
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};
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fun make_thmproc ((pre, post), functrans) =
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  Thmproc { pre = pre, post = post, functrans = functrans };
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fun map_thmproc f (Thmproc { pre, post, functrans }) =
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  make_thmproc (f ((pre, post), functrans));
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fun merge_thmproc (Thmproc { pre = pre1, post = post1, functrans = functrans1 },
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  Thmproc { pre = pre2, post = post2, functrans = functrans2 }) =
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    let
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      val pre = Simplifier.merge_ss (pre1, pre2);
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      val post = Simplifier.merge_ss (post1, post2);
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      val functrans = AList.merge (op =) (eq_fst (op =)) (functrans1, functrans2);
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        (* FIXME handle AList.DUP (!?) *)
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    in make_thmproc ((pre, post), functrans) end;
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structure Code_Preproc_Data = Theory_Data
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(
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  type T = thmproc;
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  val empty = make_thmproc ((Simplifier.empty_ss, Simplifier.empty_ss), []);
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  val extend = I;
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  val merge = merge_thmproc;
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);
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fun the_thmproc thy = case Code_Preproc_Data.get thy
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 of Thmproc x => x;
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fun delete_force msg key xs =
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  if AList.defined (op =) xs key then AList.delete (op =) key xs
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  else error ("No such " ^ msg ^ ": " ^ quote key);
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fun map_data f = Code.purge_data
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  #> (Code_Preproc_Data.map o map_thmproc) f;
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val map_pre_post = map_data o apfst;
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val map_pre = map_pre_post o apfst;
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val map_post = map_pre_post o apsnd;
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val add_unfold = map_pre o MetaSimplifier.add_simp;
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val del_unfold = map_pre o MetaSimplifier.del_simp;
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val add_post = map_post o MetaSimplifier.add_simp;
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val del_post = map_post o MetaSimplifier.del_simp;
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fun add_unfold_post raw_thm thy =
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  let
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    val thm = LocalDefs.meta_rewrite_rule (ProofContext.init thy) raw_thm;
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    val thm_sym = Thm.symmetric thm;
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  in
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    thy |> map_pre_post (fn (pre, post) =>
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      (pre |> MetaSimplifier.add_simp thm, post |> MetaSimplifier.del_simp thm_sym))
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  end;
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fun add_functrans (name, f) = (map_data o apsnd)
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  (AList.update (op =) (name, (serial (), f)));
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fun del_functrans name = (map_data o apsnd)
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  (delete_force "function transformer" name);
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(* post- and preprocessing *)
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fun apply_functrans thy c _ [] = []
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  | apply_functrans thy c [] eqns = eqns
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  | apply_functrans thy c functrans eqns = eqns
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      |> perhaps (perhaps_loop (perhaps_apply functrans))
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      |> Code.assert_eqns_const thy c
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      (*FIXME in future, the check here should be more accurate wrt. type schemes
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      -- perhaps by means of upcoming code certificates with a corresponding
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         preprocessor protocol*);
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fun rhs_conv conv thm = Thm.transitive thm ((conv o Thm.rhs_of) thm);
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fun eqn_conv conv =
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  let
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    fun lhs_conv ct = if can Thm.dest_comb ct
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      then Conv.combination_conv lhs_conv conv ct
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      else Conv.all_conv ct;
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  in Conv.combination_conv (Conv.arg_conv lhs_conv) conv end;
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val rewrite_eqn = Conv.fconv_rule o eqn_conv o Simplifier.rewrite;
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fun term_of_conv thy f =
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  Thm.cterm_of thy
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  #> f
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  #> Thm.prop_of
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  #> Logic.dest_equals
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  #> snd;
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fun preprocess thy c eqns =
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  let
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    val pre = (Simplifier.theory_context thy o #pre o the_thmproc) thy;
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    val functrans = (map (fn (_, (_, f)) => f thy) o #functrans
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      o the_thmproc) thy;
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  in
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    eqns
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    |> apply_functrans thy c functrans
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    |> (map o apfst) (rewrite_eqn pre)
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    |> (map o apfst) (AxClass.unoverload thy)
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    |> map (Code.assert_eqn thy)
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  end;
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fun preprocess_conv thy ct =
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  let
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    val pre = (Simplifier.theory_context thy o #pre o the_thmproc) thy;
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  in
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    ct
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    |> Simplifier.rewrite pre
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    |> rhs_conv (AxClass.unoverload_conv thy)
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  end;
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fun postprocess_conv thy ct =
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  let
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    val post = (Simplifier.theory_context thy o #post o the_thmproc) thy;
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  in
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    ct
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    |> AxClass.overload_conv thy
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    |> rhs_conv (Simplifier.rewrite post)
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  end;
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fun postprocess_term thy = term_of_conv thy (postprocess_conv thy);
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fun print_codeproc thy =
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  let
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    val ctxt = ProofContext.init thy;
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    val pre = (#pre o the_thmproc) thy;
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    val post = (#post o the_thmproc) thy;
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    val functrans = (map fst o #functrans o the_thmproc) thy;
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  in
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    (Pretty.writeln o Pretty.chunks) [
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      Pretty.block [
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        Pretty.str "preprocessing simpset:",
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        Pretty.fbrk,
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        Simplifier.pretty_ss ctxt pre
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      ],
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      Pretty.block [
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        Pretty.str "postprocessing simpset:",
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        Pretty.fbrk,
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        Simplifier.pretty_ss ctxt post
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      ],
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      Pretty.block (
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        Pretty.str "function transformers:"
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        :: Pretty.fbrk
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        :: (Pretty.fbreaks o map Pretty.str) functrans
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      )
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    ]
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  end;
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fun simple_functrans f thy eqns = case f thy (map fst eqns)
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 of SOME thms' => SOME (map (rpair (forall snd eqns)) thms')
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  | NONE => NONE;
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(** sort algebra and code equation graph types **)
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type code_algebra = (sort -> sort) * Sorts.algebra;
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type code_graph = ((string * sort) list * (thm * bool) list) Graph.T;
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fun eqns eqngr = these o Option.map snd o try (Graph.get_node eqngr);
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fun sortargs eqngr = map snd o fst o Graph.get_node eqngr
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fun all eqngr = Graph.keys eqngr;
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fun pretty thy eqngr =
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  AList.make (snd o Graph.get_node eqngr) (Graph.keys eqngr)
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  |> (map o apfst) (Code.string_of_const thy)
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  |> sort (string_ord o pairself fst)
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  |> map (fn (s, thms) =>
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       (Pretty.block o Pretty.fbreaks) (
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         Pretty.str s
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         :: map (Display.pretty_thm_global thy o fst) thms
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       ))
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  |> Pretty.chunks;
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(** the Waisenhaus algorithm **)
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(* auxiliary *)
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fun is_proper_class thy = can (AxClass.get_info thy);
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fun complete_proper_sort thy =
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  Sign.complete_sort thy #> filter (is_proper_class thy);
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fun inst_params thy tyco =
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  map (fn (c, _) => AxClass.param_of_inst thy (c, tyco))
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    o maps (#params o AxClass.get_info thy);
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fun typscheme_rhss thy c eqns =
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  let
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    val tyscm = Code.typscheme_eqns thy c (map fst eqns);
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    val rhss = [] |> (fold o fold o fold_aterms)
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      (fn Const (c, ty) => insert (op =) (c, Sign.const_typargs thy (c, Logic.unvarifyT ty)) | _ => I)
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        (map (op :: o swap o apfst (snd o strip_comb) o Logic.dest_equals o Thm.plain_prop_of o fst) eqns);
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  in (tyscm, rhss) end;
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(* data structures *)
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datatype const = Fun of string | Inst of class * string;
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fun const_ord (Fun c1, Fun c2) = fast_string_ord (c1, c2)
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  | const_ord (Inst class_tyco1, Inst class_tyco2) =
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      prod_ord fast_string_ord fast_string_ord (class_tyco1, class_tyco2)
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  | const_ord (Fun _, Inst _) = LESS
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  | const_ord (Inst _, Fun _) = GREATER;
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type var = const * int;
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structure Vargraph =
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  Graph(type key = var val ord = prod_ord const_ord int_ord);
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datatype styp = Tyco of string * styp list | Var of var | Free;
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fun styp_of c_lhs (Type (tyco, tys)) = Tyco (tyco, map (styp_of c_lhs) tys)
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  | styp_of c_lhs (TFree (v, _)) = case c_lhs
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     of SOME (c, lhs) => Var (Fun c, find_index (fn (v', _) => v = v') lhs)
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      | NONE => Free;
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type vardeps_data = ((string * styp list) list * class list) Vargraph.T
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  * (((string * sort) list * (thm * bool) list) Symtab.table
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    * (class * string) list);
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val empty_vardeps_data : vardeps_data =
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  (Vargraph.empty, (Symtab.empty, []));
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(* retrieving equations and instances from the background context *)
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fun obtain_eqns thy eqngr c =
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  case try (Graph.get_node eqngr) c
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   of SOME (lhs, eqns) => ((lhs, []), [])
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    | NONE => let
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        val eqns = Code.these_eqns thy c
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          |> preprocess thy c;
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        val ((lhs, _), rhss) = typscheme_rhss thy c eqns;
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      in ((lhs, rhss), eqns) end;
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fun obtain_instance thy arities (inst as (class, tyco)) =
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  case AList.lookup (op =) arities inst
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   of SOME classess => (classess, ([], []))
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    | NONE => let
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        val all_classes = complete_proper_sort thy [class];
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        val superclasses = remove (op =) class all_classes
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        val classess = map (complete_proper_sort thy)
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          (Sign.arity_sorts thy tyco [class]);
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        val inst_params = inst_params thy tyco all_classes;
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      in (classess, (superclasses, inst_params)) end;
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(* computing instantiations *)
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fun add_classes thy arities eqngr c_k new_classes vardeps_data =
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  let
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    val (styps, old_classes) = Vargraph.get_node (fst vardeps_data) c_k;
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    val diff_classes = new_classes |> subtract (op =) old_classes;
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  in if null diff_classes then vardeps_data
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  else let
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    val c_ks = Vargraph.imm_succs (fst vardeps_data) c_k |> insert (op =) c_k;
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  in
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    vardeps_data
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    |> (apfst o Vargraph.map_node c_k o apsnd) (append diff_classes)
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    |> fold (fn styp => fold (ensure_typmatch_inst thy arities eqngr styp) new_classes) styps
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    |> fold (fn c_k => add_classes thy arities eqngr c_k diff_classes) c_ks
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  end end
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and add_styp thy arities eqngr c_k tyco_styps vardeps_data =
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  let
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    val (old_styps, classes) = Vargraph.get_node (fst vardeps_data) c_k;
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  in if member (op =) old_styps tyco_styps then vardeps_data
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  else
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    vardeps_data
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    |> (apfst o Vargraph.map_node c_k o apfst) (cons tyco_styps)
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    |> fold (ensure_typmatch_inst thy arities eqngr tyco_styps) classes
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  end
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and add_dep thy arities eqngr c_k c_k' vardeps_data =
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  let
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    val (_, classes) = Vargraph.get_node (fst vardeps_data) c_k;
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  in
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    vardeps_data
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    |> add_classes thy arities eqngr c_k' classes
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    |> apfst (Vargraph.add_edge (c_k, c_k'))
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  end
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and ensure_typmatch_inst thy arities eqngr (tyco, styps) class vardeps_data =
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  if can (Sign.arity_sorts thy tyco) [class]
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  then vardeps_data
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    |> ensure_inst thy arities eqngr (class, tyco)
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    |> fold_index (fn (k, styp) =>
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         ensure_typmatch thy arities eqngr styp (Inst (class, tyco), k)) styps
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  else vardeps_data (*permissive!*)
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and ensure_inst thy arities eqngr (inst as (class, tyco)) (vardeps_data as (_, (_, insts))) =
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  if member (op =) insts inst then vardeps_data
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  else let
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    val (classess, (superclasses, inst_params)) =
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      obtain_instance thy arities inst;
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  in
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    vardeps_data
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    |> (apsnd o apsnd) (insert (op =) inst)
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    |> fold_index (fn (k, _) =>
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         apfst (Vargraph.new_node ((Inst (class, tyco), k), ([] ,[])))) classess
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    |> fold (fn superclass => ensure_inst thy arities eqngr (superclass, tyco)) superclasses
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    |> fold (ensure_fun thy arities eqngr) inst_params
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    |> fold_index (fn (k, classes) =>
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         add_classes thy arities eqngr (Inst (class, tyco), k) classes
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         #> fold (fn superclass =>
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             add_dep thy arities eqngr (Inst (superclass, tyco), k)
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             (Inst (class, tyco), k)) superclasses
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         #> fold (fn inst_param =>
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             add_dep thy arities eqngr (Fun inst_param, k)
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             (Inst (class, tyco), k)
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             ) inst_params
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         ) classess
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  end
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and ensure_typmatch thy arities eqngr (Tyco tyco_styps) c_k vardeps_data =
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      vardeps_data
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      |> add_styp thy arities eqngr c_k tyco_styps
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  | ensure_typmatch thy arities eqngr (Var c_k') c_k vardeps_data =
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      vardeps_data
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      |> add_dep thy arities eqngr c_k c_k'
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  | ensure_typmatch thy arities eqngr Free c_k vardeps_data =
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      vardeps_data
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and ensure_rhs thy arities eqngr (c', styps) vardeps_data =
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  vardeps_data
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  |> ensure_fun thy arities eqngr c'
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  |> fold_index (fn (k, styp) =>
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       ensure_typmatch thy arities eqngr styp (Fun c', k)) styps
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and ensure_fun thy arities eqngr c (vardeps_data as (_, (eqntab, _))) =
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  if Symtab.defined eqntab c then vardeps_data
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  else let
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    val ((lhs, rhss), eqns) = obtain_eqns thy eqngr c;
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    val rhss' = (map o apsnd o map) (styp_of (SOME (c, lhs))) rhss;
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  in
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    vardeps_data
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    |> (apsnd o apfst) (Symtab.update_new (c, (lhs, eqns)))
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    |> fold_index (fn (k, _) =>
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         apfst (Vargraph.new_node ((Fun c, k), ([] ,[])))) lhs
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    |> fold_index (fn (k, (_, sort)) =>
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         add_classes thy arities eqngr (Fun c, k) (complete_proper_sort thy sort)) lhs
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    |> fold (ensure_rhs thy arities eqngr) rhss'
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  end;
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(* applying instantiations *)
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fun dicts_of thy (proj_sort, algebra) (T, sort) =
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  let
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    fun class_relation (x, _) _ = x;
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    fun type_constructor tyco xs class =
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      inst_params thy tyco (Sorts.complete_sort algebra [class])
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        @ (maps o maps) fst xs;
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    fun type_variable (TFree (_, sort)) = map (pair []) (proj_sort sort);
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  in
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a0f38d8d633a Sorts.of_sort_derivation: no pp here;
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    flat (Sorts.of_sort_derivation algebra
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      { class_relation = class_relation, type_constructor = type_constructor,
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        type_variable = type_variable } (T, proj_sort sort)
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       handle Sorts.CLASS_ERROR _ => [] (*permissive!*))
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  end;
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   398
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   399
fun inst_thm thy tvars' thm =
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  let
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   401
    val tvars = (Term.add_tvars o Thm.prop_of) thm [];
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   402
    val inter_sort = Sorts.inter_sort (Sign.classes_of thy);
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   403
    fun mk_inst (tvar as (v, sort)) = case Vartab.lookup tvars' v
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   404
     of SOME sort' => SOME (pairself (Thm.ctyp_of thy o TVar)
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   405
          (tvar, (v, inter_sort (sort, sort'))))
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   406
      | NONE => NONE;
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   407
    val insts = map_filter mk_inst tvars;
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   408
  in Thm.instantiate (insts, []) thm end;
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diff changeset
   409
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   410
fun add_arity thy vardeps (class, tyco) =
33063
4d462963a7db map_range (and map_index) combinator
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   411
  AList.default (op =) ((class, tyco),
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   412
    map_range (fn k => (snd o Vargraph.get_node vardeps) (Inst (class, tyco), k)) (Sign.arity_number thy tyco));
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   413
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   414
fun add_eqs thy vardeps (c, (proto_lhs, proto_eqns)) (rhss, eqngr) =
30058
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   415
  if can (Graph.get_node eqngr) c then (rhss, eqngr)
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   416
  else let
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   417
    val lhs = map_index (fn (k, (v, _)) =>
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   418
      (v, snd (Vargraph.get_node vardeps (Fun c, k)))) proto_lhs;
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parents:
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   419
    val inst_tab = Vartab.empty |> fold (fn (v, sort) =>
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   420
      Vartab.update ((v, 0), sort)) lhs;
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   421
    val eqns = proto_eqns
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   422
      |> (map o apfst) (inst_thm thy inst_tab);
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   423
    val ((vs, _), rhss') = typscheme_rhss thy c eqns;
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   424
    val eqngr' = Graph.new_node (c, (vs, eqns)) eqngr;
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   425
  in (map (pair c) rhss' @ rhss, eqngr') end;
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parents:
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   426
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haftmann
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   427
fun extend_arities_eqngr thy cs ts (arities, (eqngr : code_graph)) =
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   428
  let
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   429
    val cs_rhss = (fold o fold_aterms) (fn Const (c_ty as (c, _)) =>
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   430
      insert (op =) (c, (map (styp_of NONE) o Sign.const_typargs thy) c_ty) | _ => I) ts [];
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   431
    val (vardeps, (eqntab, insts)) = empty_vardeps_data
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   432
      |> fold (ensure_fun thy arities eqngr) cs
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   433
      |> fold (ensure_rhs thy arities eqngr) cs_rhss;
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   434
    val arities' = fold (add_arity thy vardeps) insts arities;
30064
3cd19b113854 use canonical subalgebra projection
haftmann
parents: 30061
diff changeset
   435
    val pp = Syntax.pp_global thy;
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haftmann
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   436
    val algebra = Sorts.subalgebra pp (is_proper_class thy)
30064
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parents: 30061
diff changeset
   437
      (AList.lookup (op =) arities') (Sign.classes_of thy);
30942
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parents: 30876
diff changeset
   438
    val (rhss, eqngr') = Symtab.fold (add_eqs thy vardeps) eqntab ([], eqngr);
1e246776f876 diagnostic commands now in code_thingol; tuned code of funny continuations
haftmann
parents: 30876
diff changeset
   439
    fun deps_of (c, rhs) = c :: maps (dicts_of thy algebra)
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haftmann
parents: 32872
diff changeset
   440
      (rhs ~~ sortargs eqngr' c);
30054
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haftmann
parents: 30050
diff changeset
   441
    val eqngr'' = fold (fn (c, rhs) => fold
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   442
      (curry Graph.add_edge c) (deps_of rhs)) rhss eqngr';
30942
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haftmann
parents: 30876
diff changeset
   443
  in (algebra, (arities', eqngr'')) end;
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haftmann
parents:
diff changeset
   444
862fc7751a15 tuned and incremental version of wellsorting algorithm
haftmann
parents:
diff changeset
   445
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   446
(** store for preprocessed arities and code equations **)
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haftmann
parents:
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   447
31962
baa8dce5bc45 tuned structure Code internally
haftmann
parents: 31957
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   448
structure Wellsorted = Code_Data_Fun
30010
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haftmann
parents:
diff changeset
   449
(
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parents: 30942
diff changeset
   450
  type T = ((string * class) * sort list) list * code_graph;
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   451
  val empty = ([], Graph.empty);
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diff changeset
   452
  fun purge thy cs (arities, eqngr) =
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diff changeset
   453
    let
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haftmann
parents:
diff changeset
   454
      val del_cs = ((Graph.all_preds eqngr
862fc7751a15 tuned and incremental version of wellsorting algorithm
haftmann
parents:
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   455
        o filter (can (Graph.get_node eqngr))) cs);
30050
916a8427f65a first attempt to solve evaluation bootstrap problem
haftmann
parents: 30029
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   456
      val del_arities = del_cs
916a8427f65a first attempt to solve evaluation bootstrap problem
haftmann
parents: 30029
diff changeset
   457
        |> map_filter (AxClass.inst_of_param thy)
916a8427f65a first attempt to solve evaluation bootstrap problem
haftmann
parents: 30029
diff changeset
   458
        |> maps (fn (c, tyco) =>
916a8427f65a first attempt to solve evaluation bootstrap problem
haftmann
parents: 30029
diff changeset
   459
             (map (rpair tyco) o Sign.complete_sort thy o the_list
916a8427f65a first attempt to solve evaluation bootstrap problem
haftmann
parents: 30029
diff changeset
   460
               o AxClass.class_of_param thy) c);
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haftmann
parents:
diff changeset
   461
      val arities' = fold (AList.delete (op =)) del_arities arities;
862fc7751a15 tuned and incremental version of wellsorting algorithm
haftmann
parents:
diff changeset
   462
      val eqngr' = Graph.del_nodes del_cs eqngr;
862fc7751a15 tuned and incremental version of wellsorting algorithm
haftmann
parents:
diff changeset
   463
    in (arities', eqngr') end;
862fc7751a15 tuned and incremental version of wellsorting algorithm
haftmann
parents:
diff changeset
   464
);
862fc7751a15 tuned and incremental version of wellsorting algorithm
haftmann
parents:
diff changeset
   465
862fc7751a15 tuned and incremental version of wellsorting algorithm
haftmann
parents:
diff changeset
   466
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haftmann
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diff changeset
   467
(** retrieval and evaluation interfaces **)
30010
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haftmann
parents:
diff changeset
   468
30942
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haftmann
parents: 30876
diff changeset
   469
fun obtain thy cs ts = apsnd snd
1e246776f876 diagnostic commands now in code_thingol; tuned code of funny continuations
haftmann
parents: 30876
diff changeset
   470
  (Wellsorted.change_yield thy (extend_arities_eqngr thy cs ts));
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haftmann
parents:
diff changeset
   471
32123
8bac9ee4b28d integrated add_triv_classes into evaluation stack
haftmann
parents: 32072
diff changeset
   472
fun gen_eval thy cterm_of conclude_evaluation evaluator proto_ct =
30942
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haftmann
parents: 30876
diff changeset
   473
  let
31063
88aaab83b6fc dropped explicit suppport for frees in evaluation conversion stack
haftmann
parents: 31036
diff changeset
   474
    val pp = Syntax.pp_global thy;
30942
1e246776f876 diagnostic commands now in code_thingol; tuned code of funny continuations
haftmann
parents: 30876
diff changeset
   475
    val ct = cterm_of proto_ct;
31063
88aaab83b6fc dropped explicit suppport for frees in evaluation conversion stack
haftmann
parents: 31036
diff changeset
   476
    val _ = (Sign.no_frees pp o map_types (K dummyT) o Sign.no_vars pp)
30947
dd551284a300 re-engineering of evaluation conversions
haftmann
parents: 30942
diff changeset
   477
      (Thm.term_of ct);
31125
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haftmann
parents: 31089
diff changeset
   478
    val thm = preprocess_conv thy ct;
30942
1e246776f876 diagnostic commands now in code_thingol; tuned code of funny continuations
haftmann
parents: 30876
diff changeset
   479
    val ct' = Thm.rhs_of thm;
1e246776f876 diagnostic commands now in code_thingol; tuned code of funny continuations
haftmann
parents: 30876
diff changeset
   480
    val t' = Thm.term_of ct';
30947
dd551284a300 re-engineering of evaluation conversions
haftmann
parents: 30942
diff changeset
   481
    val vs = Term.add_tfrees t' [];
dd551284a300 re-engineering of evaluation conversions
haftmann
parents: 30942
diff changeset
   482
    val consts = fold_aterms
dd551284a300 re-engineering of evaluation conversions
haftmann
parents: 30942
diff changeset
   483
      (fn Const (c, _) => insert (op =) c | _ => I) t' [];
32544
e129333b9df0 moved eq handling in nbe into separate oracle
haftmann
parents: 32353
diff changeset
   484
    val (algebra', eqngr') = obtain thy consts [t'];
e129333b9df0 moved eq handling in nbe into separate oracle
haftmann
parents: 32353
diff changeset
   485
  in conclude_evaluation (evaluator algebra' eqngr' vs t' ct') thm end;
30947
dd551284a300 re-engineering of evaluation conversions
haftmann
parents: 30942
diff changeset
   486
dd551284a300 re-engineering of evaluation conversions
haftmann
parents: 30942
diff changeset
   487
fun simple_evaluator evaluator algebra eqngr vs t ct =
dd551284a300 re-engineering of evaluation conversions
haftmann
parents: 30942
diff changeset
   488
  evaluator algebra eqngr vs t;
30010
862fc7751a15 tuned and incremental version of wellsorting algorithm
haftmann
parents:
diff changeset
   489
30942
1e246776f876 diagnostic commands now in code_thingol; tuned code of funny continuations
haftmann
parents: 30876
diff changeset
   490
fun eval_conv thy =
1e246776f876 diagnostic commands now in code_thingol; tuned code of funny continuations
haftmann
parents: 30876
diff changeset
   491
  let
30947
dd551284a300 re-engineering of evaluation conversions
haftmann
parents: 30942
diff changeset
   492
    fun conclude_evaluation thm2 thm1 =
30942
1e246776f876 diagnostic commands now in code_thingol; tuned code of funny continuations
haftmann
parents: 30876
diff changeset
   493
      let
31125
80218ee73167 transferred code generator preprocessor into separate module
haftmann
parents: 31089
diff changeset
   494
        val thm3 = postprocess_conv thy (Thm.rhs_of thm2);
30942
1e246776f876 diagnostic commands now in code_thingol; tuned code of funny continuations
haftmann
parents: 30876
diff changeset
   495
      in
1e246776f876 diagnostic commands now in code_thingol; tuned code of funny continuations
haftmann
parents: 30876
diff changeset
   496
        Thm.transitive thm1 (Thm.transitive thm2 thm3) handle THM _ =>
1e246776f876 diagnostic commands now in code_thingol; tuned code of funny continuations
haftmann
parents: 30876
diff changeset
   497
          error ("could not construct evaluation proof:\n"
32091
30e2ffbba718 proper context for Display.pretty_thm etc. or old-style versions Display.pretty_thm_global, Display.pretty_thm_without_context etc.;
wenzelm
parents: 32072
diff changeset
   498
          ^ (cat_lines o map (Display.string_of_thm_global thy)) [thm1, thm2, thm3])
30942
1e246776f876 diagnostic commands now in code_thingol; tuned code of funny continuations
haftmann
parents: 30876
diff changeset
   499
      end;
30947
dd551284a300 re-engineering of evaluation conversions
haftmann
parents: 30942
diff changeset
   500
  in gen_eval thy I conclude_evaluation end;
30010
862fc7751a15 tuned and incremental version of wellsorting algorithm
haftmann
parents:
diff changeset
   501
32123
8bac9ee4b28d integrated add_triv_classes into evaluation stack
haftmann
parents: 32072
diff changeset
   502
fun eval thy postproc evaluator = gen_eval thy (Thm.cterm_of thy)
8bac9ee4b28d integrated add_triv_classes into evaluation stack
haftmann
parents: 32072
diff changeset
   503
  (K o postproc (postprocess_term thy)) (simple_evaluator evaluator);
31125
80218ee73167 transferred code generator preprocessor into separate module
haftmann
parents: 31089
diff changeset
   504
80218ee73167 transferred code generator preprocessor into separate module
haftmann
parents: 31089
diff changeset
   505
80218ee73167 transferred code generator preprocessor into separate module
haftmann
parents: 31089
diff changeset
   506
(** setup **)
80218ee73167 transferred code generator preprocessor into separate module
haftmann
parents: 31089
diff changeset
   507
80218ee73167 transferred code generator preprocessor into separate module
haftmann
parents: 31089
diff changeset
   508
val setup = 
80218ee73167 transferred code generator preprocessor into separate module
haftmann
parents: 31089
diff changeset
   509
  let
80218ee73167 transferred code generator preprocessor into separate module
haftmann
parents: 31089
diff changeset
   510
    fun mk_attribute f = Thm.declaration_attribute (fn thm => Context.mapping (f thm) I);
32072
d4bff63bcbf1 added code_unfold_post attribute
haftmann
parents: 31998
diff changeset
   511
    fun add_del_attribute_parser add del =
31998
2c7a24f74db9 code attributes use common underscore convention
haftmann
parents: 31977
diff changeset
   512
      Attrib.add_del (mk_attribute add) (mk_attribute del);
32072
d4bff63bcbf1 added code_unfold_post attribute
haftmann
parents: 31998
diff changeset
   513
    fun both f g thm = f thm #> g thm;
31125
80218ee73167 transferred code generator preprocessor into separate module
haftmann
parents: 31089
diff changeset
   514
  in
32072
d4bff63bcbf1 added code_unfold_post attribute
haftmann
parents: 31998
diff changeset
   515
    Attrib.setup @{binding code_unfold} (add_del_attribute_parser 
d4bff63bcbf1 added code_unfold_post attribute
haftmann
parents: 31998
diff changeset
   516
       (both Codegen.add_unfold add_unfold) (both Codegen.del_unfold del_unfold))
d4bff63bcbf1 added code_unfold_post attribute
haftmann
parents: 31998
diff changeset
   517
        "preprocessing equations for code generators"
d4bff63bcbf1 added code_unfold_post attribute
haftmann
parents: 31998
diff changeset
   518
    #> Attrib.setup @{binding code_inline} (add_del_attribute_parser add_unfold del_unfold)
31998
2c7a24f74db9 code attributes use common underscore convention
haftmann
parents: 31977
diff changeset
   519
        "preprocessing equations for code generator"
32072
d4bff63bcbf1 added code_unfold_post attribute
haftmann
parents: 31998
diff changeset
   520
    #> Attrib.setup @{binding code_post} (add_del_attribute_parser add_post del_post)
31998
2c7a24f74db9 code attributes use common underscore convention
haftmann
parents: 31977
diff changeset
   521
        "postprocessing equations for code generator"
32072
d4bff63bcbf1 added code_unfold_post attribute
haftmann
parents: 31998
diff changeset
   522
    #> Attrib.setup @{binding code_unfold_post} (Scan.succeed (mk_attribute add_unfold_post))
d4bff63bcbf1 added code_unfold_post attribute
haftmann
parents: 31998
diff changeset
   523
        "pre- and postprocessing equations for code generator"
31125
80218ee73167 transferred code generator preprocessor into separate module
haftmann
parents: 31089
diff changeset
   524
  end;
80218ee73167 transferred code generator preprocessor into separate module
haftmann
parents: 31089
diff changeset
   525
80218ee73167 transferred code generator preprocessor into separate module
haftmann
parents: 31089
diff changeset
   526
val _ =
80218ee73167 transferred code generator preprocessor into separate module
haftmann
parents: 31089
diff changeset
   527
  OuterSyntax.improper_command "print_codeproc" "print code preprocessor setup"
80218ee73167 transferred code generator preprocessor into separate module
haftmann
parents: 31089
diff changeset
   528
  OuterKeyword.diag (Scan.succeed
80218ee73167 transferred code generator preprocessor into separate module
haftmann
parents: 31089
diff changeset
   529
      (Toplevel.no_timing o Toplevel.unknown_theory o Toplevel.keep
80218ee73167 transferred code generator preprocessor into separate module
haftmann
parents: 31089
diff changeset
   530
        (print_codeproc o Toplevel.theory_of)));
30010
862fc7751a15 tuned and incremental version of wellsorting algorithm
haftmann
parents:
diff changeset
   531
862fc7751a15 tuned and incremental version of wellsorting algorithm
haftmann
parents:
diff changeset
   532
end; (*struct*)