src/Pure/Isar/code.ML
author haftmann
Thu, 04 Oct 2007 19:54:44 +0200
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certificates for code generator case expressions
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(*  Title:      Pure/Isar/code.ML
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    ID:         $Id$
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    Author:     Florian Haftmann, TU Muenchen
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Abstract executable content of theory.  Management of data dependent on
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executable content.
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*)
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signature CODE =
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sig
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  val add_func: thm -> theory -> theory
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  val add_liberal_func: thm -> theory -> theory
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  val add_default_func: thm -> theory -> theory
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  val add_default_func_attr: Attrib.src
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  val del_func: thm -> theory -> theory
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  val add_funcl: string * thm list Susp.T -> theory -> theory
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  val add_inline: thm -> theory -> theory
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  val del_inline: thm -> theory -> theory
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  val add_inline_proc: string * (theory -> cterm list -> thm list) -> theory -> theory
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  val del_inline_proc: string -> theory -> theory
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  val add_preproc: string * (theory -> thm list -> thm list) -> theory -> theory
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  val del_preproc: string -> theory -> theory
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  val add_post: thm -> theory -> theory
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  val del_post: thm -> theory -> theory
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  val add_datatype: (string * typ) list -> theory -> theory
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  val add_datatype_cmd: string list -> theory -> theory
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  val add_case: thm -> theory -> theory
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  val add_undefined: string -> theory -> theory
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  val coregular_algebra: theory -> Sorts.algebra
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  val operational_algebra: theory -> (sort -> sort) * Sorts.algebra
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  val these_funcs: theory -> string -> thm list
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  val get_datatype: theory -> string -> ((string * sort) list * (string * typ list) list)
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  val get_datatype_of_constr: theory -> string -> string option
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  val get_case_data: theory -> string -> (int * string list) option
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  val is_undefined: theory -> string -> bool
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  val default_typ: theory -> string -> typ
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  val preprocess_conv: cterm -> thm
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  val preprocess_term: theory -> term -> term
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  val postprocess_conv: cterm -> thm
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  val postprocess_term: theory -> term -> term
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  val add_attribute: string * (Args.T list -> attribute * Args.T list) -> theory -> theory
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  val print_codesetup: theory -> unit
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end;
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signature CODE_DATA_ARGS =
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sig
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  type T
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  val empty: T
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  val merge: Pretty.pp -> T * T -> T
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  val purge: theory option -> string list option -> T -> T
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end;
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signature CODE_DATA =
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  type T
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  val get: theory -> T
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  val change: theory -> (T -> T) -> T
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  val change_yield: theory -> (T -> 'a * T) -> 'a * T
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end;
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signature PRIVATE_CODE =
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  include CODE
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  val declare_data: Object.T -> (Pretty.pp -> Object.T * Object.T -> Object.T)
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    -> (theory option -> string list option -> Object.T -> Object.T) -> serial
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  val get_data: serial * ('a -> Object.T) * (Object.T -> 'a)
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    -> theory -> 'a
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  val change_data: serial * ('a -> Object.T) * (Object.T -> 'a)
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    -> theory -> ('a -> 'a) -> 'a
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  val change_yield_data: serial * ('a -> Object.T) * (Object.T -> 'a)
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    -> theory -> ('a -> 'b * 'a) -> 'b * 'a
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end;
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structure Code : PRIVATE_CODE =
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struct
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(** preliminaries **)
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(* certificate theorems *)
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fun string_of_lthms r = case Susp.peek r
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 of SOME thms => (map string_of_thm o rev) thms
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  | NONE => ["[...]"];
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fun pretty_lthms ctxt r = case Susp.peek r
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 of SOME thms => map (ProofContext.pretty_thm ctxt) thms
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  | NONE => [Pretty.str "[...]"];
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fun certificate thy f r =
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  case Susp.peek r
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   of SOME thms => (Susp.value o f thy) thms
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    | NONE => let
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        val thy_ref = Theory.check_thy thy;
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      in Susp.delay (fn () => (f (Theory.deref thy_ref) o Susp.force) r) end;
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fun merge' _ ([], []) = (false, [])
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  | merge' _ ([], ys) = (true, ys)
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  | merge' eq (xs, ys) = fold_rev
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      (fn y => fn (t, xs) => (t orelse not (member eq xs y), insert eq y xs)) ys (false, xs);
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fun merge_alist eq_key eq (xys as (xs, ys)) =
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  if eq_list (eq_pair eq_key eq) (xs, ys)
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  then (false, xs)
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  else (true, AList.merge eq_key eq xys);
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val merge_thms = merge' Thm.eq_thm_prop;
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fun merge_lthms (r1, r2) =
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  if Susp.same (r1, r2)
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    then (false, r1)
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  else case Susp.peek r1
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   of SOME [] => (true, r2)
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    | _ => case Susp.peek r2
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       of SOME [] => (true, r1)
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        | _ => (apsnd (Susp.delay o K)) (merge_thms (Susp.force r1, Susp.force r2));
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(* pairs of (selected, deleted) defining equations *)
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type sdthms = thm list Susp.T * thm list;
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fun add_drop_redundant thm (sels, dels) =
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  let
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    val thy = Thm.theory_of_thm thm;
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    val args_of = snd o strip_comb o fst o Logic.dest_equals o Thm.plain_prop_of;
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    val args = args_of thm;
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    fun matches [] _ = true
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      | matches (Var _ :: xs) [] = matches xs []
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      | matches (_ :: _) [] = false
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      | matches (x :: xs) (y :: ys) = Pattern.matches thy (x, y) andalso matches xs ys;
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    fun drop thm' = not (matches args (args_of thm'))
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      orelse (warning ("code generator: dropping redundant defining equation\n" ^ string_of_thm thm'); false);
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    val (keeps, drops) = List.partition drop sels;
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  in (thm :: keeps, dels |> remove Thm.eq_thm_prop thm |> fold (insert Thm.eq_thm_prop) drops) end;
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fun add_thm thm (sels, dels) =
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  apfst Susp.value (add_drop_redundant thm (Susp.force sels, dels));
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fun add_lthms lthms (sels, []) =
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      (Susp.delay (fn () => fold add_drop_redundant
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        (Susp.force lthms) (Susp.force sels, []) |> fst), [])
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        (*FIXME*)
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  | add_lthms lthms (sels, dels) =
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      fold add_thm (Susp.force lthms) (sels, dels);
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fun del_thm thm (sels, dels) =
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  (Susp.value (remove Thm.eq_thm_prop thm (Susp.force sels)), thm :: dels);
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fun pretty_sdthms ctxt (sels, _) = pretty_lthms ctxt sels;
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fun merge_sdthms ((sels1, dels1), (sels2, dels2)) =
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  let
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    val (dels_t, dels) = merge_thms (dels1, dels2);
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  in if dels_t
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    then let
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      val (_, sels) = merge_thms
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        (subtract Thm.eq_thm_prop dels2 (Susp.force sels1), Susp.force sels2);
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      val (_, dels) = merge_thms
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        (subtract Thm.eq_thm_prop (Susp.force sels2) dels1, dels2);
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    in (true, ((Susp.delay o K) sels, dels)) end
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    else let
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      val (sels_t, sels) = merge_lthms (sels1, sels2);
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    in (sels_t, (sels, dels)) end
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  end;
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(* code attributes *)
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structure CodeAttr = TheoryDataFun (
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  type T = (string * (Args.T list -> attribute * Args.T list)) list;
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  val empty = [];
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  val copy = I;
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  val extend = I;
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  fun merge _ = AList.merge (op =) (K true);
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);
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fun add_attribute (attr as (name, _)) =
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  let
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    fun add_parser ("", parser) attrs = attrs @ [("", parser)]
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      | add_parser (name, parser) attrs = (name, Args.$$$ name |-- parser) :: attrs;
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    fun error "" = error ("Code attribute already declared")
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      | error name = error ("Code attribute " ^ name ^ " already declared")
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  in CodeAttr.map (fn attrs => if AList.defined (op =) attrs name
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    then error name else add_parser attr attrs)
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  end;
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val _ =
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  let
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    val code_attr = Attrib.syntax (Scan.peek (fn context =>
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      List.foldr op || Scan.fail (map snd (CodeAttr.get (Context.theory_of context)))));
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  in
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    Context.add_setup (Attrib.add_attributes
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      [("code", code_attr, "declare theorems for code generation")])
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  end;
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(** exeuctable content **)
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datatype thmproc = Preproc of {
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  inlines: thm list,
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  inline_procs: (string * (serial * (theory -> cterm list -> thm list))) list,
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  preprocs: (string * (serial * (theory -> thm list -> thm list))) list,
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  posts: thm list
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};
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fun mk_thmproc (((inlines, inline_procs), preprocs), posts) =
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  Preproc { inlines = inlines, inline_procs = inline_procs, preprocs = preprocs,
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    posts = posts };
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fun map_thmproc f (Preproc { inlines, inline_procs, preprocs, posts }) =
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  mk_thmproc (f (((inlines, inline_procs), preprocs), posts));
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fun merge_thmproc (Preproc { inlines = inlines1, inline_procs = inline_procs1,
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    preprocs = preprocs1, posts = posts1 },
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  Preproc { inlines = inlines2, inline_procs = inline_procs2,
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      preprocs = preprocs2, posts= posts2 }) =
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    let
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      val (touched1, inlines) = merge_thms (inlines1, inlines2);
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      val (touched2, inline_procs) = merge_alist (op =) (eq_fst (op =)) (inline_procs1, inline_procs2);
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      val (touched3, preprocs) = merge_alist (op =) (eq_fst (op =)) (preprocs1, preprocs2);
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      val (_, posts) = merge_thms (posts1, posts2);
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    in (touched1 orelse touched2 orelse touched3,
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      mk_thmproc (((inlines, inline_procs), preprocs), posts)) end;
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fun join_func_thms (tabs as (tab1, tab2)) =
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  let
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    val cs1 = Symtab.keys tab1;
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    val cs2 = Symtab.keys tab2;
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    val cs' = filter (member (op =) cs2) cs1;
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    val cs'' = subtract (op =) cs' cs1 @ subtract (op =) cs' cs2;
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    val cs''' = ref [] : string list ref;
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    fun merge c x = let val (touched, thms') = merge_sdthms x in
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      (if touched then cs''' := cons c (!cs''') else (); thms') end;
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  in (cs'' @ !cs''', Symtab.join merge tabs) end;
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val eq_string = op = : string * string -> bool;
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fun eq_dtyp ((vs1, cs1), (vs2, cs2)) = 
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  gen_eq_set (eq_pair eq_string (gen_eq_set eq_string)) (vs1, vs2)
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    andalso gen_eq_set (eq_fst eq_string) (cs1, cs2);
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fun merge_dtyps (tabs as (tab1, tab2)) =
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  let
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    val tycos1 = Symtab.keys tab1;
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    val tycos2 = Symtab.keys tab2;
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    val tycos' = filter (member eq_string tycos2) tycos1;
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    val new_types = not (gen_eq_set (op =) (tycos1, tycos2));
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    val diff_types = not (gen_eq_set (eq_pair (op =) eq_dtyp)
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      (AList.make (the o Symtab.lookup tab1) tycos',
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       AList.make (the o Symtab.lookup tab2) tycos'));
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    fun join _ (cos as (_, cos2)) = if eq_dtyp cos
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      then raise Symtab.SAME else cos2;
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  in ((new_types, diff_types), Symtab.join join tabs) end;
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fun merge_cases ((cases1, undefs1), (cases2, undefs2)) =
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  let
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    val touched1 = subtract (op =) (Symtab.keys cases1) (Symtab.keys cases2)
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      @ subtract (op =) (Symtab.keys cases2) (Symtab.keys cases1);
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    val touched2 = subtract (op =) (Symtab.keys undefs1) (Symtab.keys undefs2)
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      @ subtract (op =) (Symtab.keys undefs2) (Symtab.keys undefs1);
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    val touched = fold (insert (op =)) touched1 touched2;
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  in
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    (touched, (Symtab.merge (K true) (cases1, cases2),
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      Symtab.merge (K true) (undefs1, undefs2)))
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  end;
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datatype spec = Spec of {
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  funcs: sdthms Symtab.table,
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  dtyps: ((string * sort) list * (string * typ list) list) Symtab.table,
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  cases: (int * string list) Symtab.table * unit Symtab.table
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};
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fun mk_spec (funcs, (dtyps, cases)) =
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  Spec { funcs = funcs, dtyps = dtyps, cases = cases };
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fun map_spec f (Spec { funcs = funcs, dtyps = dtyps, cases = cases }) =
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  mk_spec (f (funcs, (dtyps, cases)));
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fun merge_spec (Spec { funcs = funcs1, dtyps = dtyps1, cases = cases1 },
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  Spec { funcs = funcs2, dtyps = dtyps2, cases = cases2 }) =
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  let
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    val (touched_cs, funcs) = join_func_thms (funcs1, funcs2);
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    val ((new_types, diff_types), dtyps) = merge_dtyps (dtyps1, dtyps2);
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    val (touched_cases, cases) = merge_cases (cases1, cases2);
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    val touched = if new_types orelse diff_types then NONE else
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      SOME (fold (insert (op =)) touched_cases touched_cs);
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  in (touched, mk_spec (funcs, (dtyps, cases))) end;
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datatype exec = Exec of {
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  thmproc: thmproc,
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  spec: spec
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};
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fun mk_exec (thmproc, spec) =
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  Exec { thmproc = thmproc, spec = spec };
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fun map_exec f (Exec { thmproc = thmproc, spec = spec }) =
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  mk_exec (f (thmproc, spec));
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fun merge_exec (Exec { thmproc = thmproc1, spec = spec1 },
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  Exec { thmproc = thmproc2, spec = spec2 }) =
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  let
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    val (touched', thmproc) = merge_thmproc (thmproc1, thmproc2);
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    val (touched_cs, spec) = merge_spec (spec1, spec2);
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    val touched = if touched' then NONE else touched_cs;
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  in (touched, mk_exec (thmproc, spec)) end;
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val empty_exec = mk_exec (mk_thmproc ((([], []), []), []),
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  mk_spec (Symtab.empty, (Symtab.empty, (Symtab.empty, Symtab.empty))));
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fun the_thmproc (Exec { thmproc = Preproc x, ...}) = x;
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fun the_spec (Exec { spec = Spec x, ...}) = x;
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val the_funcs = #funcs o the_spec;
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val the_dtyps = #dtyps o the_spec;
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val the_cases = #cases o the_spec;
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val map_thmproc = map_exec o apfst o map_thmproc;
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val map_funcs = map_exec o apsnd o map_spec o apfst;
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val map_dtyps = map_exec o apsnd o map_spec o apsnd o apfst;
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val map_cases = map_exec o apsnd o map_spec o apsnd o apsnd;
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(* data slots dependent on executable content *)
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(*private copy avoids potential conflict of table exceptions*)
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structure Datatab = TableFun(type key = int val ord = int_ord);
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local
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type kind = {
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  empty: Object.T,
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  merge: Pretty.pp -> Object.T * Object.T -> Object.T,
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  purge: theory option -> string list option -> Object.T -> Object.T
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};
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val kinds = ref (Datatab.empty: kind Datatab.table);
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val kind_keys = ref ([]: serial list);
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fun invoke f k = case Datatab.lookup (! kinds) k
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 of SOME kind => f kind
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  | NONE => sys_error "Invalid code data identifier";
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in
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fun declare_data empty merge purge =
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  let
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    val k = serial ();
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    val kind = {empty = empty, merge = merge, purge = purge};
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    val _ = change kinds (Datatab.update (k, kind));
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    val _ = change kind_keys (cons k);
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  in k end;
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fun invoke_empty k = invoke (fn kind => #empty kind) k;
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fun invoke_merge_all pp = Datatab.join
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  (invoke (fn kind => #merge kind pp));
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   352
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   353
fun invoke_purge_all thy_opt cs =
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   354
  fold (fn k => Datatab.map_entry k
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   355
    (invoke (fn kind => #purge kind thy_opt cs) k)) (! kind_keys);
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   356
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   357
end; (*local*)
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   358
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   359
e558fe311376 new structure for code generator modules
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   360
(* theory store *)
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diff changeset
   361
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   362
local
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diff changeset
   363
e558fe311376 new structure for code generator modules
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   364
type data = Object.T Datatab.table;
e558fe311376 new structure for code generator modules
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   365
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   366
structure CodeData = TheoryDataFun
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   367
(
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   368
  type T = exec * data ref;
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  val empty = (empty_exec, ref Datatab.empty : data ref);
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   370
  fun copy (exec, data) = (exec, ref (! data));
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  val extend = copy;
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   372
  fun merge pp ((exec1, data1), (exec2, data2)) =
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   373
    let
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      val (touched, exec) = merge_exec (exec1, exec2);
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   375
      val data1' = invoke_purge_all NONE touched (! data1);
e558fe311376 new structure for code generator modules
haftmann
parents:
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   376
      val data2' = invoke_purge_all NONE touched (! data2);
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haftmann
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   377
      val data = invoke_merge_all pp (data1', data2');
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   378
    in (exec, ref data) end;
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   379
);
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   380
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   381
val _ = Context.add_setup CodeData.init;
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   382
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   383
fun ch r f = let val x = f (! r) in (r := x; x) end;
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haftmann
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   384
fun thy_data f thy = f ((snd o CodeData.get) thy);
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haftmann
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   385
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haftmann
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   386
fun get_ensure_init kind data_ref =
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   387
  case Datatab.lookup (! data_ref) kind
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   388
   of SOME x => x
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   389
    | NONE => let val y = invoke_empty kind
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haftmann
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   390
        in (change data_ref (Datatab.update (kind, y)); y) end;
e558fe311376 new structure for code generator modules
haftmann
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   391
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   392
in
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diff changeset
   393
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haftmann
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diff changeset
   394
(* access to executable content *)
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   395
24844
98c006a30218 certificates for code generator case expressions
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diff changeset
   396
val the_exec = fst o CodeData.get;
24219
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   397
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   398
fun map_exec_purge touched f thy =
e558fe311376 new structure for code generator modules
haftmann
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   399
  CodeData.map (fn (exec, data) => 
e558fe311376 new structure for code generator modules
haftmann
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diff changeset
   400
    (f exec, ref (invoke_purge_all (SOME thy) touched (! data)))) thy;
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   401
e558fe311376 new structure for code generator modules
haftmann
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diff changeset
   402
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   403
(* access to data dependent on abstract executable content *)
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   404
e558fe311376 new structure for code generator modules
haftmann
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diff changeset
   405
fun get_data (kind, _, dest) = thy_data (get_ensure_init kind #> dest);
e558fe311376 new structure for code generator modules
haftmann
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diff changeset
   406
e558fe311376 new structure for code generator modules
haftmann
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diff changeset
   407
fun change_data (kind, mk, dest) =
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   408
  let
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   409
    fun chnge data_ref f =
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   410
      let
e558fe311376 new structure for code generator modules
haftmann
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diff changeset
   411
        val data = get_ensure_init kind data_ref;
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haftmann
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diff changeset
   412
        val data' = f (dest data);
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haftmann
parents:
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   413
      in (change data_ref (Datatab.update (kind, mk data')); data') end;
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haftmann
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diff changeset
   414
  in thy_data chnge end;
e558fe311376 new structure for code generator modules
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parents:
diff changeset
   415
e558fe311376 new structure for code generator modules
haftmann
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   416
fun change_yield_data (kind, mk, dest) =
e558fe311376 new structure for code generator modules
haftmann
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   417
  let
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haftmann
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   418
    fun chnge data_ref f =
e558fe311376 new structure for code generator modules
haftmann
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   419
      let
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haftmann
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diff changeset
   420
        val data = get_ensure_init kind data_ref;
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   421
        val (x, data') = f (dest data);
e558fe311376 new structure for code generator modules
haftmann
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   422
      in (x, (change data_ref (Datatab.update (kind, mk data')); data')) end;
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haftmann
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diff changeset
   423
  in thy_data chnge end;
e558fe311376 new structure for code generator modules
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diff changeset
   424
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diff changeset
   425
end; (*local*)
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   426
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haftmann
parents:
diff changeset
   427
e558fe311376 new structure for code generator modules
haftmann
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   428
(* print executable content *)
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haftmann
parents:
diff changeset
   429
e558fe311376 new structure for code generator modules
haftmann
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diff changeset
   430
fun print_codesetup thy =
e558fe311376 new structure for code generator modules
haftmann
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   431
  let
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haftmann
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diff changeset
   432
    val ctxt = ProofContext.init thy;
24844
98c006a30218 certificates for code generator case expressions
haftmann
parents: 24837
diff changeset
   433
    val exec = the_exec thy;
24219
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haftmann
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diff changeset
   434
    fun pretty_func (s, lthms) =
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   435
      (Pretty.block o Pretty.fbreaks) (
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   436
        Pretty.str s :: pretty_sdthms ctxt lthms
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   437
      );
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   438
    fun pretty_dtyp (s, []) =
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   439
          Pretty.str s
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haftmann
parents:
diff changeset
   440
      | pretty_dtyp (s, cos) =
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   441
          (Pretty.block o Pretty.breaks) (
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   442
            Pretty.str s
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   443
            :: Pretty.str "="
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   444
            :: separate (Pretty.str "|") (map (fn (c, []) => Pretty.str c
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   445
                 | (c, tys) =>
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   446
                     (Pretty.block o Pretty.breaks)
24423
ae9cd0e92423 overloaded definitions accompanied by explicit constants
haftmann
parents: 24283
diff changeset
   447
                        (Pretty.str (CodeUnit.string_of_const thy c)
ae9cd0e92423 overloaded definitions accompanied by explicit constants
haftmann
parents: 24283
diff changeset
   448
                          :: Pretty.str "of" :: map (Pretty.quote o Sign.pretty_typ thy) tys)) cos)
24219
e558fe311376 new structure for code generator modules
haftmann
parents:
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   449
          );
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   450
    val inlines = (#inlines o the_thmproc) exec;
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   451
    val inline_procs = (map fst o #inline_procs o the_thmproc) exec;
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   452
    val preprocs = (map fst o #preprocs o the_thmproc) exec;
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   453
    val funs = the_funcs exec
24423
ae9cd0e92423 overloaded definitions accompanied by explicit constants
haftmann
parents: 24283
diff changeset
   454
      |> Symtab.dest
24219
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   455
      |> (map o apfst) (CodeUnit.string_of_const thy)
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   456
      |> sort (string_ord o pairself fst);
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   457
    val dtyps = the_dtyps exec
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   458
      |> Symtab.dest
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   459
      |> map (fn (dtco, (vs, cos)) => (Sign.string_of_typ thy (Type (dtco, map TFree vs)), cos))
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   460
      |> sort (string_ord o pairself fst)
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   461
  in
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   462
    (Pretty.writeln o Pretty.chunks) [
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   463
      Pretty.block (
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   464
        Pretty.str "defining equations:"
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   465
        :: Pretty.fbrk
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   466
        :: (Pretty.fbreaks o map pretty_func) funs
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   467
      ),
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   468
      Pretty.block (
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   469
        Pretty.str "inlining theorems:"
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   470
        :: Pretty.fbrk
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   471
        :: (Pretty.fbreaks o map (ProofContext.pretty_thm ctxt)) inlines
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   472
      ),
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   473
      Pretty.block (
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   474
        Pretty.str "inlining procedures:"
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   475
        :: Pretty.fbrk
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   476
        :: (Pretty.fbreaks o map Pretty.str) inline_procs
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   477
      ),
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   478
      Pretty.block (
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   479
        Pretty.str "preprocessors:"
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   480
        :: Pretty.fbrk
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   481
        :: (Pretty.fbreaks o map Pretty.str) preprocs
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   482
      ),
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   483
      Pretty.block (
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   484
        Pretty.str "datatypes:"
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   485
        :: Pretty.fbrk
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   486
        :: (Pretty.fbreaks o map pretty_dtyp) dtyps
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   487
      )
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   488
    ]
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   489
  end;
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   490
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   491
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   492
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   493
(** theorem transformation and certification **)
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   494
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   495
fun common_typ_funcs [] = []
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   496
  | common_typ_funcs [thm] = [thm]
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   497
  | common_typ_funcs (thms as thm :: _) =
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   498
      let
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   499
        val thy = Thm.theory_of_thm thm;
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   500
        fun incr_thm thm max =
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   501
          let
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   502
            val thm' = incr_indexes max thm;
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   503
            val max' = Thm.maxidx_of thm' + 1;
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   504
          in (thm', max') end;
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   505
        val (thms', maxidx) = fold_map incr_thm thms 0;
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   506
        val ty1 :: tys = map (snd o CodeUnit.head_func) thms';
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   507
        fun unify ty env = Sign.typ_unify thy (ty1, ty) env
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   508
          handle Type.TUNIFY =>
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   509
            error ("Type unificaton failed, while unifying defining equations\n"
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   510
            ^ (cat_lines o map Display.string_of_thm) thms
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   511
            ^ "\nwith types\n"
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   512
            ^ (cat_lines o map (CodeUnit.string_of_typ thy)) (ty1 :: tys));
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   513
        val (env, _) = fold unify tys (Vartab.empty, maxidx)
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   514
        val instT = Vartab.fold (fn (x_i, (sort, ty)) =>
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   515
          cons (Thm.ctyp_of thy (TVar (x_i, sort)), Thm.ctyp_of thy ty)) env [];
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   516
      in map (Thm.instantiate (instT, [])) thms' end;
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   517
24423
ae9cd0e92423 overloaded definitions accompanied by explicit constants
haftmann
parents: 24283
diff changeset
   518
fun const_of_func thy = Class.unoverload_const thy o CodeUnit.head_func;
ae9cd0e92423 overloaded definitions accompanied by explicit constants
haftmann
parents: 24283
diff changeset
   519
24219
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   520
fun certify_const thy const thms =
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   521
  let
24423
ae9cd0e92423 overloaded definitions accompanied by explicit constants
haftmann
parents: 24283
diff changeset
   522
    fun cert thm = if const = const_of_func thy thm
24219
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   523
      then thm else error ("Wrong head of defining equation,\nexpected constant "
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   524
        ^ CodeUnit.string_of_const thy const ^ "\n" ^ string_of_thm thm)
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   525
  in map cert thms end;
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   526
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   527
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   528
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   529
(** operational sort algebra and class discipline **)
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   530
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   531
local
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   532
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   533
fun aggr_neutr f y [] = y
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   534
  | aggr_neutr f y (x::xs) = aggr_neutr f (f y x) xs;
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   535
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   536
fun aggregate f [] = NONE
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   537
  | aggregate f (x::xs) = SOME (aggr_neutr f x xs);
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   538
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   539
fun inter_sorts thy =
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   540
  let
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   541
    val algebra = Sign.classes_of thy;
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   542
    val inters = curry (Sorts.inter_sort algebra);
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   543
  in aggregate (map2 inters) end;
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   544
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   545
fun specific_constraints thy (class, tyco) =
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   546
  let
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   547
    val vs = Name.invents Name.context "" (Sign.arity_number thy tyco);
24837
cacc5744be75 clarified terminology
haftmann
parents: 24731
diff changeset
   548
    val classparams = (map fst o these o Option.map snd
24423
ae9cd0e92423 overloaded definitions accompanied by explicit constants
haftmann
parents: 24283
diff changeset
   549
      o try (AxClass.params_of_class thy)) class;
24837
cacc5744be75 clarified terminology
haftmann
parents: 24731
diff changeset
   550
    val funcs = classparams
24423
ae9cd0e92423 overloaded definitions accompanied by explicit constants
haftmann
parents: 24283
diff changeset
   551
      |> map (fn c => Class.inst_const thy (c, tyco))
24844
98c006a30218 certificates for code generator case expressions
haftmann
parents: 24837
diff changeset
   552
      |> map (Symtab.lookup ((the_funcs o the_exec) thy))
24219
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   553
      |> (map o Option.map) (Susp.force o fst)
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   554
      |> maps these
24423
ae9cd0e92423 overloaded definitions accompanied by explicit constants
haftmann
parents: 24283
diff changeset
   555
      |> map (Thm.transfer thy)
ae9cd0e92423 overloaded definitions accompanied by explicit constants
haftmann
parents: 24283
diff changeset
   556
    fun sorts_of [Type (_, tys)] = map (snd o dest_TVar) tys
ae9cd0e92423 overloaded definitions accompanied by explicit constants
haftmann
parents: 24283
diff changeset
   557
      | sorts_of tys = map (snd o dest_TVar) tys;
ae9cd0e92423 overloaded definitions accompanied by explicit constants
haftmann
parents: 24283
diff changeset
   558
    val sorts = map (sorts_of o Sign.const_typargs thy o CodeUnit.head_func) funcs;
24219
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   559
  in sorts end;
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   560
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   561
fun weakest_constraints thy (class, tyco) =
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   562
  let
24731
c25aa6ae64ec Sign.minimize/complete_sort;
wenzelm
parents: 24659
diff changeset
   563
    val all_superclasses = Sign.complete_sort thy [class];
24219
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   564
  in case inter_sorts thy (maps (fn class => specific_constraints thy (class, tyco)) all_superclasses)
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   565
   of SOME sorts => sorts
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   566
    | NONE => Sign.arity_sorts thy tyco [class]
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   567
  end;
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   568
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   569
fun strongest_constraints thy (class, tyco) =
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   570
  let
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   571
    val algebra = Sign.classes_of thy;
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   572
    val all_subclasses = class :: Graph.all_preds ((#classes o Sorts.rep_algebra) algebra) [class];
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   573
    val inst_subclasses = filter (can (Sorts.mg_domain algebra tyco) o single) all_subclasses;
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   574
  in case inter_sorts thy (maps (fn class => specific_constraints thy (class, tyco)) inst_subclasses)
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   575
   of SOME sorts => sorts
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   576
    | NONE => replicate
24731
c25aa6ae64ec Sign.minimize/complete_sort;
wenzelm
parents: 24659
diff changeset
   577
        (Sign.arity_number thy tyco) (Sign.minimize_sort thy (Sign.all_classes thy))
24219
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   578
  end;
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   579
24837
cacc5744be75 clarified terminology
haftmann
parents: 24731
diff changeset
   580
fun gen_classparam_typ constr thy class (c, tyco) = 
24219
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   581
  let
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   582
    val (var, cs) = try (AxClass.params_of_class thy) class |> the_default ("'a", [])
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   583
    val ty = (the o AList.lookup (op =) cs) c;
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   584
    val sort_args = Name.names (Name.declare var Name.context) "'a"
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   585
      (constr thy (class, tyco));
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   586
    val ty_inst = Type (tyco, map TFree sort_args);
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   587
  in Logic.varifyT (map_type_tfree (K ty_inst) ty) end;
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   588
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   589
fun retrieve_algebra thy operational =
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   590
  Sorts.subalgebra (Sign.pp thy) operational
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   591
    (weakest_constraints thy)
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   592
    (Sign.classes_of thy);
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   593
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   594
in
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   595
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   596
fun coregular_algebra thy = retrieve_algebra thy (K true) |> snd;
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   597
fun operational_algebra thy =
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   598
  let
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   599
    fun add_iff_operational class =
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   600
      can (AxClass.get_definition thy) class ? cons class;
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   601
    val operational_classes = fold add_iff_operational (Sign.all_classes thy) []
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   602
  in retrieve_algebra thy (member (op =) operational_classes) end;
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   603
24837
cacc5744be75 clarified terminology
haftmann
parents: 24731
diff changeset
   604
val classparam_weakest_typ = gen_classparam_typ weakest_constraints;
cacc5744be75 clarified terminology
haftmann
parents: 24731
diff changeset
   605
val classparam_strongest_typ = gen_classparam_typ strongest_constraints;
24219
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   606
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   607
fun assert_func_typ thm =
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   608
  let
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   609
    val thy = Thm.theory_of_thm thm;
24837
cacc5744be75 clarified terminology
haftmann
parents: 24731
diff changeset
   610
    fun check_typ_classparam tyco (c, thm) =
24219
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   611
          let
24423
ae9cd0e92423 overloaded definitions accompanied by explicit constants
haftmann
parents: 24283
diff changeset
   612
            val SOME class = AxClass.class_of_param thy c;
24219
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   613
            val (_, ty) = CodeUnit.head_func thm;
24837
cacc5744be75 clarified terminology
haftmann
parents: 24731
diff changeset
   614
            val ty_decl = classparam_weakest_typ thy class (c, tyco);
cacc5744be75 clarified terminology
haftmann
parents: 24731
diff changeset
   615
            val ty_strongest = classparam_strongest_typ thy class (c, tyco);
24219
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   616
            fun constrain thm = 
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   617
              let
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   618
                val max = Thm.maxidx_of thm + 1;
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   619
                val ty_decl' = Logic.incr_tvar max ty_decl;
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   620
                val (_, ty') = CodeUnit.head_func thm;
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   621
                val (env, _) = Sign.typ_unify thy (ty_decl', ty') (Vartab.empty, max);
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   622
                val instT = Vartab.fold (fn (x_i, (sort, ty)) =>
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   623
                  cons (Thm.ctyp_of thy (TVar (x_i, sort)), Thm.ctyp_of thy ty)) env [];
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   624
              in Thm.instantiate (instT, []) thm end;
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   625
          in if Sign.typ_instance thy (ty_strongest, ty)
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   626
            then if Sign.typ_instance thy (ty, ty_decl)
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   627
            then thm
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   628
            else (warning ("Constraining type\n" ^ CodeUnit.string_of_typ thy ty
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   629
              ^ "\nof defining equation\n"
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   630
              ^ string_of_thm thm
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   631
              ^ "\nto permitted most general type\n"
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   632
              ^ CodeUnit.string_of_typ thy ty_decl);
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   633
              constrain thm)
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   634
            else CodeUnit.bad_thm ("Type\n" ^ CodeUnit.string_of_typ thy ty
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   635
              ^ "\nof defining equation\n"
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   636
              ^ string_of_thm thm
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   637
              ^ "\nis incompatible with permitted least general type\n"
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   638
              ^ CodeUnit.string_of_typ thy ty_strongest)
24423
ae9cd0e92423 overloaded definitions accompanied by explicit constants
haftmann
parents: 24283
diff changeset
   639
          end;
ae9cd0e92423 overloaded definitions accompanied by explicit constants
haftmann
parents: 24283
diff changeset
   640
    fun check_typ_fun (c, thm) =
24219
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   641
      let
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   642
        val (_, ty) = CodeUnit.head_func thm;
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   643
        val ty_decl = Sign.the_const_type thy c;
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   644
      in if Sign.typ_equiv thy (Type.strip_sorts ty_decl, Type.strip_sorts ty)
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   645
        then thm
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   646
        else CodeUnit.bad_thm ("Type\n" ^ CodeUnit.string_of_typ thy ty
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   647
           ^ "\nof defining equation\n"
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   648
           ^ string_of_thm thm
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   649
           ^ "\nis incompatible with declared function type\n"
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   650
           ^ CodeUnit.string_of_typ thy ty_decl)
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   651
      end;
24423
ae9cd0e92423 overloaded definitions accompanied by explicit constants
haftmann
parents: 24283
diff changeset
   652
    fun check_typ (c, thm) =
ae9cd0e92423 overloaded definitions accompanied by explicit constants
haftmann
parents: 24283
diff changeset
   653
      case Class.param_const thy c
24837
cacc5744be75 clarified terminology
haftmann
parents: 24731
diff changeset
   654
       of SOME (c, tyco) => check_typ_classparam tyco (c, thm)
24423
ae9cd0e92423 overloaded definitions accompanied by explicit constants
haftmann
parents: 24283
diff changeset
   655
        | NONE => check_typ_fun (c, thm);
ae9cd0e92423 overloaded definitions accompanied by explicit constants
haftmann
parents: 24283
diff changeset
   656
  in check_typ (const_of_func thy thm, thm) end;
24219
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   657
24283
haftmann
parents: 24219
diff changeset
   658
val mk_func = CodeUnit.error_thm (assert_func_typ o CodeUnit.mk_func);
24624
b8383b1bbae3 distinction between regular and default code theorems
haftmann
parents: 24585
diff changeset
   659
val mk_liberal_func = CodeUnit.warning_thm (assert_func_typ o CodeUnit.mk_func);
b8383b1bbae3 distinction between regular and default code theorems
haftmann
parents: 24585
diff changeset
   660
val mk_default_func = CodeUnit.try_thm (assert_func_typ o CodeUnit.mk_func);
24219
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   661
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   662
end;
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   663
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   664
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   665
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   666
(** interfaces and attributes **)
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   667
24624
b8383b1bbae3 distinction between regular and default code theorems
haftmann
parents: 24585
diff changeset
   668
fun delete_force msg key xs =
b8383b1bbae3 distinction between regular and default code theorems
haftmann
parents: 24585
diff changeset
   669
  if AList.defined (op =) xs key then AList.delete (op =) key xs
b8383b1bbae3 distinction between regular and default code theorems
haftmann
parents: 24585
diff changeset
   670
  else error ("No such " ^ msg ^ ": " ^ quote key);
b8383b1bbae3 distinction between regular and default code theorems
haftmann
parents: 24585
diff changeset
   671
24423
ae9cd0e92423 overloaded definitions accompanied by explicit constants
haftmann
parents: 24283
diff changeset
   672
fun get_datatype thy tyco =
24844
98c006a30218 certificates for code generator case expressions
haftmann
parents: 24837
diff changeset
   673
  case Symtab.lookup ((the_dtyps o the_exec) thy) tyco
24423
ae9cd0e92423 overloaded definitions accompanied by explicit constants
haftmann
parents: 24283
diff changeset
   674
   of SOME spec => spec
ae9cd0e92423 overloaded definitions accompanied by explicit constants
haftmann
parents: 24283
diff changeset
   675
    | NONE => Sign.arity_number thy tyco
ae9cd0e92423 overloaded definitions accompanied by explicit constants
haftmann
parents: 24283
diff changeset
   676
        |> Name.invents Name.context "'a"
ae9cd0e92423 overloaded definitions accompanied by explicit constants
haftmann
parents: 24283
diff changeset
   677
        |> map (rpair [])
ae9cd0e92423 overloaded definitions accompanied by explicit constants
haftmann
parents: 24283
diff changeset
   678
        |> rpair [];
ae9cd0e92423 overloaded definitions accompanied by explicit constants
haftmann
parents: 24283
diff changeset
   679
ae9cd0e92423 overloaded definitions accompanied by explicit constants
haftmann
parents: 24283
diff changeset
   680
fun get_datatype_of_constr thy c =
ae9cd0e92423 overloaded definitions accompanied by explicit constants
haftmann
parents: 24283
diff changeset
   681
  case (snd o strip_type o Sign.the_const_type thy) c
ae9cd0e92423 overloaded definitions accompanied by explicit constants
haftmann
parents: 24283
diff changeset
   682
   of Type (tyco, _) => if member (op =)
24844
98c006a30218 certificates for code generator case expressions
haftmann
parents: 24837
diff changeset
   683
       ((the_default [] o Option.map (map fst o snd) o Symtab.lookup ((the_dtyps o the_exec) thy)) tyco) c
24423
ae9cd0e92423 overloaded definitions accompanied by explicit constants
haftmann
parents: 24283
diff changeset
   684
       then SOME tyco else NONE
ae9cd0e92423 overloaded definitions accompanied by explicit constants
haftmann
parents: 24283
diff changeset
   685
    | _ => NONE;
ae9cd0e92423 overloaded definitions accompanied by explicit constants
haftmann
parents: 24283
diff changeset
   686
ae9cd0e92423 overloaded definitions accompanied by explicit constants
haftmann
parents: 24283
diff changeset
   687
fun get_constr_typ thy c =
ae9cd0e92423 overloaded definitions accompanied by explicit constants
haftmann
parents: 24283
diff changeset
   688
  case get_datatype_of_constr thy c
ae9cd0e92423 overloaded definitions accompanied by explicit constants
haftmann
parents: 24283
diff changeset
   689
   of SOME tyco => let
ae9cd0e92423 overloaded definitions accompanied by explicit constants
haftmann
parents: 24283
diff changeset
   690
          val (vs, cos) = get_datatype thy tyco;
ae9cd0e92423 overloaded definitions accompanied by explicit constants
haftmann
parents: 24283
diff changeset
   691
          val SOME tys = AList.lookup (op =) cos c;
ae9cd0e92423 overloaded definitions accompanied by explicit constants
haftmann
parents: 24283
diff changeset
   692
          val ty = tys ---> Type (tyco, map TFree vs);
ae9cd0e92423 overloaded definitions accompanied by explicit constants
haftmann
parents: 24283
diff changeset
   693
        in SOME (Logic.varifyT ty) end
ae9cd0e92423 overloaded definitions accompanied by explicit constants
haftmann
parents: 24283
diff changeset
   694
    | NONE => NONE;
ae9cd0e92423 overloaded definitions accompanied by explicit constants
haftmann
parents: 24283
diff changeset
   695
24844
98c006a30218 certificates for code generator case expressions
haftmann
parents: 24837
diff changeset
   696
val get_case_data = Symtab.lookup o fst o the_cases o the_exec;
98c006a30218 certificates for code generator case expressions
haftmann
parents: 24837
diff changeset
   697
98c006a30218 certificates for code generator case expressions
haftmann
parents: 24837
diff changeset
   698
val is_undefined = Symtab.defined o snd o the_cases o the_exec;
98c006a30218 certificates for code generator case expressions
haftmann
parents: 24837
diff changeset
   699
24624
b8383b1bbae3 distinction between regular and default code theorems
haftmann
parents: 24585
diff changeset
   700
fun add_func thm thy =
b8383b1bbae3 distinction between regular and default code theorems
haftmann
parents: 24585
diff changeset
   701
  let
b8383b1bbae3 distinction between regular and default code theorems
haftmann
parents: 24585
diff changeset
   702
    val func = mk_func thm;
b8383b1bbae3 distinction between regular and default code theorems
haftmann
parents: 24585
diff changeset
   703
    val c = const_of_func thy func;
b8383b1bbae3 distinction between regular and default code theorems
haftmann
parents: 24585
diff changeset
   704
    val _ = if (is_some o AxClass.class_of_param thy) c
b8383b1bbae3 distinction between regular and default code theorems
haftmann
parents: 24585
diff changeset
   705
      then error ("Rejected polymorphic equation for overloaded constant:\n"
b8383b1bbae3 distinction between regular and default code theorems
haftmann
parents: 24585
diff changeset
   706
        ^ string_of_thm thm)
b8383b1bbae3 distinction between regular and default code theorems
haftmann
parents: 24585
diff changeset
   707
      else ();
b8383b1bbae3 distinction between regular and default code theorems
haftmann
parents: 24585
diff changeset
   708
    val _ = if (is_some o get_datatype_of_constr thy) c
b8383b1bbae3 distinction between regular and default code theorems
haftmann
parents: 24585
diff changeset
   709
      then error ("Rejected equation for datatype constructor:\n"
b8383b1bbae3 distinction between regular and default code theorems
haftmann
parents: 24585
diff changeset
   710
        ^ string_of_thm func)
b8383b1bbae3 distinction between regular and default code theorems
haftmann
parents: 24585
diff changeset
   711
      else ();
b8383b1bbae3 distinction between regular and default code theorems
haftmann
parents: 24585
diff changeset
   712
  in
b8383b1bbae3 distinction between regular and default code theorems
haftmann
parents: 24585
diff changeset
   713
    (map_exec_purge (SOME [c]) o map_funcs) (Symtab.map_default
b8383b1bbae3 distinction between regular and default code theorems
haftmann
parents: 24585
diff changeset
   714
      (c, (Susp.value [], [])) (add_thm func)) thy
b8383b1bbae3 distinction between regular and default code theorems
haftmann
parents: 24585
diff changeset
   715
  end;
24219
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   716
24624
b8383b1bbae3 distinction between regular and default code theorems
haftmann
parents: 24585
diff changeset
   717
fun add_liberal_func thm thy =
b8383b1bbae3 distinction between regular and default code theorems
haftmann
parents: 24585
diff changeset
   718
  case mk_liberal_func thm
b8383b1bbae3 distinction between regular and default code theorems
haftmann
parents: 24585
diff changeset
   719
   of SOME func => let
b8383b1bbae3 distinction between regular and default code theorems
haftmann
parents: 24585
diff changeset
   720
          val c = const_of_func thy func
b8383b1bbae3 distinction between regular and default code theorems
haftmann
parents: 24585
diff changeset
   721
        in if (is_some o AxClass.class_of_param thy) c
b8383b1bbae3 distinction between regular and default code theorems
haftmann
parents: 24585
diff changeset
   722
          orelse (is_some o get_datatype_of_constr thy) c
b8383b1bbae3 distinction between regular and default code theorems
haftmann
parents: 24585
diff changeset
   723
          then thy
b8383b1bbae3 distinction between regular and default code theorems
haftmann
parents: 24585
diff changeset
   724
          else map_exec_purge (SOME [c]) (map_funcs
b8383b1bbae3 distinction between regular and default code theorems
haftmann
parents: 24585
diff changeset
   725
            (Symtab.map_default
b8383b1bbae3 distinction between regular and default code theorems
haftmann
parents: 24585
diff changeset
   726
              (c, (Susp.value [], [])) (add_thm func))) thy
b8383b1bbae3 distinction between regular and default code theorems
haftmann
parents: 24585
diff changeset
   727
        end
b8383b1bbae3 distinction between regular and default code theorems
haftmann
parents: 24585
diff changeset
   728
    | NONE => thy;
b8383b1bbae3 distinction between regular and default code theorems
haftmann
parents: 24585
diff changeset
   729
b8383b1bbae3 distinction between regular and default code theorems
haftmann
parents: 24585
diff changeset
   730
fun add_default_func thm thy =
b8383b1bbae3 distinction between regular and default code theorems
haftmann
parents: 24585
diff changeset
   731
  case mk_default_func thm
b8383b1bbae3 distinction between regular and default code theorems
haftmann
parents: 24585
diff changeset
   732
   of SOME func => let
b8383b1bbae3 distinction between regular and default code theorems
haftmann
parents: 24585
diff changeset
   733
          val c = const_of_func thy func
b8383b1bbae3 distinction between regular and default code theorems
haftmann
parents: 24585
diff changeset
   734
        in if (is_some o AxClass.class_of_param thy) c
b8383b1bbae3 distinction between regular and default code theorems
haftmann
parents: 24585
diff changeset
   735
          orelse (is_some o get_datatype_of_constr thy) c
b8383b1bbae3 distinction between regular and default code theorems
haftmann
parents: 24585
diff changeset
   736
          then thy
b8383b1bbae3 distinction between regular and default code theorems
haftmann
parents: 24585
diff changeset
   737
          else map_exec_purge (SOME [c]) (map_funcs
b8383b1bbae3 distinction between regular and default code theorems
haftmann
parents: 24585
diff changeset
   738
          (Symtab.map_default
b8383b1bbae3 distinction between regular and default code theorems
haftmann
parents: 24585
diff changeset
   739
            (c, (Susp.value [], [])) (add_thm func))) thy
b8383b1bbae3 distinction between regular and default code theorems
haftmann
parents: 24585
diff changeset
   740
        end
b8383b1bbae3 distinction between regular and default code theorems
haftmann
parents: 24585
diff changeset
   741
    | NONE => thy;
24219
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   742
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   743
fun del_func thm thy =
24659
6b7ac2a43df8 more permissive
haftmann
parents: 24624
diff changeset
   744
  case mk_liberal_func thm
6b7ac2a43df8 more permissive
haftmann
parents: 24624
diff changeset
   745
   of SOME func => let
6b7ac2a43df8 more permissive
haftmann
parents: 24624
diff changeset
   746
          val c = const_of_func thy func;
6b7ac2a43df8 more permissive
haftmann
parents: 24624
diff changeset
   747
        in map_exec_purge (SOME [c]) (map_funcs
6b7ac2a43df8 more permissive
haftmann
parents: 24624
diff changeset
   748
          (Symtab.map_entry c (del_thm func))) thy
6b7ac2a43df8 more permissive
haftmann
parents: 24624
diff changeset
   749
        end
6b7ac2a43df8 more permissive
haftmann
parents: 24624
diff changeset
   750
    | NONE => thy;
24219
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   751
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   752
fun add_funcl (const, lthms) thy =
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   753
  let
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   754
    val lthms' = certificate thy (fn thy => certify_const thy const) lthms;
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   755
      (*FIXME must check compatibility with sort algebra;
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   756
        alas, naive checking results in non-termination!*)
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   757
  in
24423
ae9cd0e92423 overloaded definitions accompanied by explicit constants
haftmann
parents: 24283
diff changeset
   758
    map_exec_purge (SOME [const]) (map_funcs (Symtab.map_default (const, (Susp.value [], []))
24219
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   759
      (add_lthms lthms'))) thy
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   760
  end;
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   761
24624
b8383b1bbae3 distinction between regular and default code theorems
haftmann
parents: 24585
diff changeset
   762
val add_default_func_attr = Attrib.internal (fn _ => Thm.declaration_attribute
b8383b1bbae3 distinction between regular and default code theorems
haftmann
parents: 24585
diff changeset
   763
  (fn thm => Context.mapping (add_default_func thm) I));
24219
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   764
24423
ae9cd0e92423 overloaded definitions accompanied by explicit constants
haftmann
parents: 24283
diff changeset
   765
fun add_datatype raw_cs thy =
24219
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   766
  let
24423
ae9cd0e92423 overloaded definitions accompanied by explicit constants
haftmann
parents: 24283
diff changeset
   767
    val cs = map (fn c_ty as (_, ty) => (Class.unoverload_const thy c_ty, ty)) raw_cs;
ae9cd0e92423 overloaded definitions accompanied by explicit constants
haftmann
parents: 24283
diff changeset
   768
    val (tyco, vs_cos) = CodeUnit.constrset_of_consts thy cs;
ae9cd0e92423 overloaded definitions accompanied by explicit constants
haftmann
parents: 24283
diff changeset
   769
    val purge_cs = map fst (snd vs_cos);
24844
98c006a30218 certificates for code generator case expressions
haftmann
parents: 24837
diff changeset
   770
    val purge_cs' = case Symtab.lookup ((the_dtyps o the_exec) thy) tyco
24423
ae9cd0e92423 overloaded definitions accompanied by explicit constants
haftmann
parents: 24283
diff changeset
   771
     of SOME (vs, cos) => if null cos then NONE else SOME (purge_cs @ map fst cos)
ae9cd0e92423 overloaded definitions accompanied by explicit constants
haftmann
parents: 24283
diff changeset
   772
      | NONE => NONE;
24219
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   773
  in
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   774
    thy
24423
ae9cd0e92423 overloaded definitions accompanied by explicit constants
haftmann
parents: 24283
diff changeset
   775
    |> map_exec_purge purge_cs' (map_dtyps (Symtab.update (tyco, vs_cos))
ae9cd0e92423 overloaded definitions accompanied by explicit constants
haftmann
parents: 24283
diff changeset
   776
        #> map_funcs (fold (Symtab.delete_safe o fst) cs))
24219
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   777
  end;
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   778
24423
ae9cd0e92423 overloaded definitions accompanied by explicit constants
haftmann
parents: 24283
diff changeset
   779
fun add_datatype_cmd raw_cs thy =
ae9cd0e92423 overloaded definitions accompanied by explicit constants
haftmann
parents: 24283
diff changeset
   780
  let
ae9cd0e92423 overloaded definitions accompanied by explicit constants
haftmann
parents: 24283
diff changeset
   781
    val cs = map (CodeUnit.read_bare_const thy) raw_cs;
ae9cd0e92423 overloaded definitions accompanied by explicit constants
haftmann
parents: 24283
diff changeset
   782
  in add_datatype cs thy end;
24219
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   783
24844
98c006a30218 certificates for code generator case expressions
haftmann
parents: 24837
diff changeset
   784
fun add_case thm thy =
98c006a30218 certificates for code generator case expressions
haftmann
parents: 24837
diff changeset
   785
  let
98c006a30218 certificates for code generator case expressions
haftmann
parents: 24837
diff changeset
   786
    val entry as (c, _) = CodeUnit.case_cert thm;
98c006a30218 certificates for code generator case expressions
haftmann
parents: 24837
diff changeset
   787
  in
98c006a30218 certificates for code generator case expressions
haftmann
parents: 24837
diff changeset
   788
    (map_exec_purge (SOME [c]) o map_cases o apfst) (Symtab.update entry) thy
98c006a30218 certificates for code generator case expressions
haftmann
parents: 24837
diff changeset
   789
  end;
98c006a30218 certificates for code generator case expressions
haftmann
parents: 24837
diff changeset
   790
98c006a30218 certificates for code generator case expressions
haftmann
parents: 24837
diff changeset
   791
fun add_undefined c thy =
98c006a30218 certificates for code generator case expressions
haftmann
parents: 24837
diff changeset
   792
  (map_exec_purge (SOME [c]) o map_cases o apsnd) (Symtab.update (c, ())) thy;
98c006a30218 certificates for code generator case expressions
haftmann
parents: 24837
diff changeset
   793
24219
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   794
fun add_inline thm thy =
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   795
  (map_exec_purge NONE o map_thmproc o apfst o apfst o apfst)
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   796
    (insert Thm.eq_thm_prop (CodeUnit.error_thm CodeUnit.mk_rew thm)) thy;
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   797
        (*fully applied in order to get right context for mk_rew!*)
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   798
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   799
fun del_inline thm thy =
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   800
  (map_exec_purge NONE o map_thmproc o apfst o apfst o apfst)
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   801
    (remove Thm.eq_thm_prop (CodeUnit.error_thm CodeUnit.mk_rew thm)) thy;
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   802
        (*fully applied in order to get right context for mk_rew!*)
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   803
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   804
fun add_inline_proc (name, f) =
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   805
  (map_exec_purge NONE o map_thmproc o apfst o apfst o apsnd)
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   806
    (AList.update (op =) (name, (serial (), f)));
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   807
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   808
fun del_inline_proc name =
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   809
  (map_exec_purge NONE o map_thmproc o apfst o apfst o apsnd)
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   810
    (delete_force "inline procedure" name);
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   811
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   812
fun add_preproc (name, f) =
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   813
  (map_exec_purge NONE o map_thmproc o apfst o apsnd)
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   814
    (AList.update (op =) (name, (serial (), f)));
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   815
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   816
fun del_preproc name =
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   817
  (map_exec_purge NONE o map_thmproc o apfst o apsnd)
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   818
    (delete_force "preprocessor" name);
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   819
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   820
fun add_post thm thy =
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   821
  (map_exec_purge NONE o map_thmproc o apsnd)
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   822
    (insert Thm.eq_thm_prop (CodeUnit.error_thm CodeUnit.mk_rew thm)) thy;
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   823
        (*fully applied in order to get right context for mk_rew!*)
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   824
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   825
fun del_post thm thy =
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   826
  (map_exec_purge NONE o map_thmproc o apsnd)
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   827
    (remove Thm.eq_thm_prop (CodeUnit.error_thm CodeUnit.mk_rew thm)) thy;
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   828
        (*fully applied in order to get right context for mk_rew!*)
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   829
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   830
val _ = Context.add_setup
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   831
  (let
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   832
    fun mk_attribute f = Thm.declaration_attribute (fn thm => Context.mapping (f thm) I);
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   833
    fun add_simple_attribute (name, f) =
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   834
      add_attribute (name, Scan.succeed (mk_attribute f));
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   835
    fun add_del_attribute (name, (add, del)) =
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   836
      add_attribute (name, Args.del |-- Scan.succeed (mk_attribute del)
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   837
        || Scan.succeed (mk_attribute add))
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   838
  in
24624
b8383b1bbae3 distinction between regular and default code theorems
haftmann
parents: 24585
diff changeset
   839
    add_del_attribute ("func", (add_func, del_func))
24219
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   840
    #> add_del_attribute ("inline", (add_inline, del_inline))
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   841
    #> add_del_attribute ("post", (add_post, del_post))
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   842
  end);
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   843
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   844
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   845
(** post- and preprocessing **)
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   846
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   847
local
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   848
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   849
fun gen_apply_inline_proc prep post thy f x =
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   850
  let
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   851
    val cts = prep x;
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   852
    val rews = map CodeUnit.assert_rew (f thy cts);
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   853
  in post rews x end;
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   854
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   855
val apply_inline_proc = gen_apply_inline_proc (maps
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   856
  ((fn [args, rhs] => rhs :: (snd o Drule.strip_comb) args) o snd o Drule.strip_comb o Thm.cprop_of))
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   857
  (fn rews => map (CodeUnit.rewrite_func rews));
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   858
val apply_inline_proc_cterm = gen_apply_inline_proc single
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   859
  (MetaSimplifier.rewrite false);
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   860
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   861
fun apply_preproc thy f [] = []
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   862
  | apply_preproc thy f (thms as (thm :: _)) =
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   863
      let
24423
ae9cd0e92423 overloaded definitions accompanied by explicit constants
haftmann
parents: 24283
diff changeset
   864
        val const = const_of_func thy thm;
24219
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   865
        val thms' = f thy thms;
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   866
      in certify_const thy const thms' end;
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   867
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   868
fun rhs_conv conv thm =
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   869
  let
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   870
    val thm' = (conv o Thm.rhs_of) thm;
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   871
  in Thm.transitive thm thm' end
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   872
24837
cacc5744be75 clarified terminology
haftmann
parents: 24731
diff changeset
   873
fun term_of_conv thy f =
cacc5744be75 clarified terminology
haftmann
parents: 24731
diff changeset
   874
  Thm.cterm_of thy
cacc5744be75 clarified terminology
haftmann
parents: 24731
diff changeset
   875
  #> f
cacc5744be75 clarified terminology
haftmann
parents: 24731
diff changeset
   876
  #> Thm.prop_of
cacc5744be75 clarified terminology
haftmann
parents: 24731
diff changeset
   877
  #> Logic.dest_equals
cacc5744be75 clarified terminology
haftmann
parents: 24731
diff changeset
   878
  #> snd;
cacc5744be75 clarified terminology
haftmann
parents: 24731
diff changeset
   879
24219
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   880
in
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   881
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   882
fun preprocess thy thms =
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   883
  thms
24844
98c006a30218 certificates for code generator case expressions
haftmann
parents: 24837
diff changeset
   884
  |> fold (fn (_, (_, f)) => apply_preproc thy f) ((#preprocs o the_thmproc o the_exec) thy)
98c006a30218 certificates for code generator case expressions
haftmann
parents: 24837
diff changeset
   885
  |> map (CodeUnit.rewrite_func ((#inlines o the_thmproc o the_exec) thy))
98c006a30218 certificates for code generator case expressions
haftmann
parents: 24837
diff changeset
   886
  |> fold (fn (_, (_, f)) => apply_inline_proc thy f) ((#inline_procs o the_thmproc o the_exec) thy)
24219
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   887
(*FIXME - must check: rewrite rule, defining equation, proper constant |> map (snd o check_func false thy) *)
24423
ae9cd0e92423 overloaded definitions accompanied by explicit constants
haftmann
parents: 24283
diff changeset
   888
  |> common_typ_funcs
ae9cd0e92423 overloaded definitions accompanied by explicit constants
haftmann
parents: 24283
diff changeset
   889
  |> map (Conv.fconv_rule (Class.unoverload thy));
24219
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   890
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   891
fun preprocess_conv ct =
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   892
  let
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   893
    val thy = Thm.theory_of_cterm ct;
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   894
  in
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   895
    ct
24844
98c006a30218 certificates for code generator case expressions
haftmann
parents: 24837
diff changeset
   896
    |> MetaSimplifier.rewrite false ((#inlines o the_thmproc o the_exec) thy)
24219
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   897
    |> fold (fn (_, (_, f)) => rhs_conv (apply_inline_proc_cterm thy f))
24844
98c006a30218 certificates for code generator case expressions
haftmann
parents: 24837
diff changeset
   898
        ((#inline_procs o the_thmproc o the_exec) thy)
24423
ae9cd0e92423 overloaded definitions accompanied by explicit constants
haftmann
parents: 24283
diff changeset
   899
    |> rhs_conv (Class.unoverload thy)
24219
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   900
  end;
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   901
24837
cacc5744be75 clarified terminology
haftmann
parents: 24731
diff changeset
   902
fun preprocess_term thy = term_of_conv thy preprocess_conv;
cacc5744be75 clarified terminology
haftmann
parents: 24731
diff changeset
   903
24219
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   904
fun postprocess_conv ct =
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   905
  let
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   906
    val thy = Thm.theory_of_cterm ct;
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   907
  in
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   908
    ct
24423
ae9cd0e92423 overloaded definitions accompanied by explicit constants
haftmann
parents: 24283
diff changeset
   909
    |> Class.overload thy
24844
98c006a30218 certificates for code generator case expressions
haftmann
parents: 24837
diff changeset
   910
    |> rhs_conv (MetaSimplifier.rewrite false ((#posts o the_thmproc o the_exec) thy))
24219
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   911
  end;
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   912
24837
cacc5744be75 clarified terminology
haftmann
parents: 24731
diff changeset
   913
fun postprocess_term thy = term_of_conv thy postprocess_conv;
cacc5744be75 clarified terminology
haftmann
parents: 24731
diff changeset
   914
24219
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   915
end; (*local*)
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   916
24423
ae9cd0e92423 overloaded definitions accompanied by explicit constants
haftmann
parents: 24283
diff changeset
   917
fun default_typ_proto thy c = case Class.param_const thy c
24837
cacc5744be75 clarified terminology
haftmann
parents: 24731
diff changeset
   918
 of SOME (c, tyco) => classparam_weakest_typ thy ((the o AxClass.class_of_param thy) c)
24423
ae9cd0e92423 overloaded definitions accompanied by explicit constants
haftmann
parents: 24283
diff changeset
   919
      (c, tyco) |> SOME
ae9cd0e92423 overloaded definitions accompanied by explicit constants
haftmann
parents: 24283
diff changeset
   920
  | NONE => (case AxClass.class_of_param thy c
ae9cd0e92423 overloaded definitions accompanied by explicit constants
haftmann
parents: 24283
diff changeset
   921
     of SOME class => SOME (Term.map_type_tvar
ae9cd0e92423 overloaded definitions accompanied by explicit constants
haftmann
parents: 24283
diff changeset
   922
          (K (TVar (("'a", 0), [class]))) (Sign.the_const_type thy c))
ae9cd0e92423 overloaded definitions accompanied by explicit constants
haftmann
parents: 24283
diff changeset
   923
      | NONE => get_constr_typ thy c);
24219
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   924
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   925
local
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   926
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   927
fun get_funcs thy const =
24844
98c006a30218 certificates for code generator case expressions
haftmann
parents: 24837
diff changeset
   928
  Symtab.lookup ((the_funcs o the_exec) thy) const
24219
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   929
  |> Option.map (Susp.force o fst)
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   930
  |> these
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   931
  |> map (Thm.transfer thy);
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   932
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   933
in
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   934
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   935
fun these_funcs thy const =
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   936
  let
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   937
    fun drop_refl thy = filter_out (is_equal o Term.fast_term_ord o Logic.dest_equals
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   938
      o ObjectLogic.drop_judgment thy o Thm.plain_prop_of);
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   939
  in
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   940
    get_funcs thy const
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   941
    |> preprocess thy
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   942
    |> drop_refl thy
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   943
  end;
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   944
24423
ae9cd0e92423 overloaded definitions accompanied by explicit constants
haftmann
parents: 24283
diff changeset
   945
fun default_typ thy c = case default_typ_proto thy c
24219
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   946
 of SOME ty => ty
24423
ae9cd0e92423 overloaded definitions accompanied by explicit constants
haftmann
parents: 24283
diff changeset
   947
  | NONE => (case get_funcs thy c
ae9cd0e92423 overloaded definitions accompanied by explicit constants
haftmann
parents: 24283
diff changeset
   948
     of thm :: _ => snd (CodeUnit.head_func (Conv.fconv_rule (Class.unoverload thy) thm))
24219
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   949
      | [] => Sign.the_const_type thy c);
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   950
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   951
end; (*local*)
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   952
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   953
end; (*struct*)
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   954
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   955
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   956
(** type-safe interfaces for data depedent on executable content **)
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   957
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   958
functor CodeDataFun(Data: CODE_DATA_ARGS): CODE_DATA =
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   959
struct
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   960
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   961
type T = Data.T;
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   962
exception Data of T;
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   963
fun dest (Data x) = x
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   964
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   965
val kind = Code.declare_data (Data Data.empty)
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   966
  (fn pp => fn (Data x1, Data x2) => Data (Data.merge pp (x1, x2)))
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   967
  (fn thy_opt => fn cs => fn Data x => Data (Data.purge thy_opt cs x));
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   968
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   969
val data_op = (kind, Data, dest);
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   970
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   971
val get = Code.get_data data_op;
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   972
val change = Code.change_data data_op;
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   973
fun change_yield thy = Code.change_yield_data data_op thy;
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   974
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   975
end;
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   976
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   977
structure Code : CODE =
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   978
struct
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   979
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   980
open Code;
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   981
e558fe311376 new structure for code generator modules
haftmann
parents:
diff changeset
   982
end;