src/Tools/Code/code_runtime.ML
author haftmann
Sun, 23 Feb 2014 10:33:43 +0100
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(*  Title:      Tools/Code/code_runtime.ML
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    Author:     Florian Haftmann, TU Muenchen
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Runtime services building on code generation into implementation language SML.
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*)
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signature CODE_RUNTIME =
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sig
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  val target: string
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  val value: Proof.context ->
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    (Proof.context -> unit -> 'a) * ((unit -> 'a) -> Proof.context -> Proof.context) * string ->
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    string * string -> 'a
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  type 'a cookie = (Proof.context -> unit -> 'a) * ((unit -> 'a) -> Proof.context -> Proof.context) * string
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  val dynamic_value: 'a cookie -> theory -> string option
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    -> ((term -> term) -> 'a -> 'a) -> term -> string list -> 'a option
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  val dynamic_value_strict: 'a cookie -> theory -> string option
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    -> ((term -> term) -> 'a -> 'a) -> term -> string list -> 'a
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  val dynamic_value_exn: 'a cookie -> theory -> string option
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    -> ((term -> term) -> 'a -> 'a) -> term -> string list -> 'a Exn.result
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  val static_value: 'a cookie -> theory -> string option
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    -> ((term -> term) -> 'a -> 'a) -> string list -> term -> 'a option
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  val static_value_strict: 'a cookie -> theory -> string option
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    -> ((term -> term) -> 'a -> 'a) -> string list -> term -> 'a
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  val static_value_exn: 'a cookie -> theory -> string option
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    -> ((term -> term) -> 'a -> 'a) -> string list -> term -> 'a Exn.result
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  val dynamic_holds_conv: theory -> conv
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  val static_holds_conv: theory -> string list -> conv
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  val code_reflect: (string * string list option) list -> string list -> string
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    -> string option -> theory -> theory
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  datatype truth = Holds
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  val put_truth: (unit -> truth) -> Proof.context -> Proof.context
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  val trace: bool Unsynchronized.ref
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  val polyml_as_definition: (binding * typ) list -> Path.T list -> theory -> theory
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end;
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structure Code_Runtime : CODE_RUNTIME =
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struct
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open Basic_Code_Symbol;
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open Basic_Code_Thingol;
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(** evaluation **)
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(* technical prerequisites *)
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val this = "Code_Runtime";
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val s_truth = Long_Name.append this "truth";
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val s_Holds = Long_Name.append this "Holds";
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val target = "Eval";
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val structure_generated = "Generated_Code";
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datatype truth = Holds;
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val _ = Theory.setup
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  (Code_Target.extend_target (target, (Code_ML.target_SML, I))
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  #> Code_Target.set_printings (Type_Constructor (@{type_name prop},
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    [(target, SOME (0, (K o K o K) (Code_Printer.str s_truth)))]))
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  #> Code_Target.set_printings (Constant (@{const_name Code_Generator.holds},
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    [(target, SOME (Code_Printer.plain_const_syntax s_Holds))]))
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  #> Code_Target.add_reserved target this
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  #> fold (Code_Target.add_reserved target) ["oo", "ooo", "oooo", "upto", "downto", "orf", "andf"]);
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       (*avoid further pervasive infix names*)
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val trace = Unsynchronized.ref false;
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fun exec verbose code =
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  (if ! trace then tracing code else ();
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  ML_Context.exec (fn () => Secure.use_text ML_Env.local_context (0, "generated code") verbose code));
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fun value ctxt (get, put, put_ml) (prelude, value) =
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  let
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    val code = (prelude
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      ^ "\nval _ = Context.set_thread_data (SOME (Context.map_proof (" ^ put_ml
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      ^ " (fn () => " ^ value ^ ")) (ML_Context.the_generic_context ())))");
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    val ctxt' = ctxt
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      |> put (fn () => error ("Bad evaluation for " ^ quote put_ml))
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      |> Context.proof_map (exec false code);
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  in get ctxt' () end;
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(* evaluation into target language values *)
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type 'a cookie = (Proof.context -> unit -> 'a) * ((unit -> 'a) -> Proof.context -> Proof.context) * string;
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fun reject_vars thy t =
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  let
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    val ctxt = Proof_Context.init_global thy;
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  in ((Sign.no_frees ctxt o Sign.no_vars ctxt o map_types (K dummyT)) t; t) end;
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fun obtain_evaluator thy some_target program consts expr =
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  Code_Target.evaluator thy (the_default target some_target) program consts false expr
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  |> apfst (fn ml_modules => space_implode "\n\n" (map snd ml_modules));
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fun obtain_evaluator' thy some_target program =
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  obtain_evaluator thy some_target program o map Constant;
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fun evaluation cookie thy evaluator vs_t args =
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  let
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    val ctxt = Proof_Context.init_global thy;
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    val (program_code, value_name) = evaluator vs_t;
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    val value_code = space_implode " "
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      (value_name :: "()" :: map (enclose "(" ")") args);
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  in Exn.interruptible_capture (value ctxt cookie) (program_code, value_code) end;
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fun partiality_as_none e = SOME (Exn.release e)
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  handle General.Match => NONE
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    | General.Bind => NONE
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    | General.Fail _ => NONE;
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fun dynamic_value_exn cookie thy some_target postproc t args =
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  let
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    val _ = reject_vars thy t;
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    val _ = if ! trace
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      then tracing ("Evaluation of term " ^ quote (Syntax.string_of_term_global thy t))
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      else ()
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    fun evaluator program ((_, vs_ty), t) deps =
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      evaluation cookie thy (obtain_evaluator thy some_target program deps) (vs_ty, t) args;
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  in Code_Thingol.dynamic_value thy (Exn.map_result o postproc) evaluator t end;
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fun dynamic_value_strict cookie thy some_target postproc t args =
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  Exn.release (dynamic_value_exn cookie thy some_target postproc t args);
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fun dynamic_value cookie thy some_target postproc t args =
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  partiality_as_none (dynamic_value_exn cookie thy some_target postproc t args);
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fun static_evaluator cookie thy some_target program consts' =
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  let
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    val evaluator = obtain_evaluator' thy some_target program consts'
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  in fn ((_, vs_ty), t) => fn _ => evaluation cookie thy evaluator (vs_ty, t) [] end;
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fun static_value_exn cookie thy some_target postproc consts =
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  Code_Thingol.static_value thy (Exn.map_result o postproc) consts
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    (static_evaluator cookie thy some_target) o reject_vars thy;
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fun static_value_strict cookie thy some_target postproc consts =
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  Exn.release o static_value_exn cookie thy some_target postproc consts;
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fun static_value cookie thy some_target postproc consts =
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  partiality_as_none o static_value_exn cookie thy some_target postproc consts;
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(* evaluation for truth or nothing *)
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structure Truth_Result = Proof_Data
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(
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  type T = unit -> truth
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  (* FIXME avoid user error with non-user text *)
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  fun init _ () = error "Truth_Result"
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);
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val put_truth = Truth_Result.put;
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val truth_cookie = (Truth_Result.get, put_truth, Long_Name.append this "put_truth");
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val reject_vars = fn thy => tap (reject_vars thy o Thm.term_of);
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local
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fun check_holds thy evaluator vs_t ct =
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  let
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    val t = Thm.term_of ct;
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    val _ = if fastype_of t <> propT
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      then error ("Not a proposition: " ^ Syntax.string_of_term_global thy t)
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      else ();
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    val iff = Thm.cterm_of thy (Term.Const ("==", propT --> propT --> propT));
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    val result = case partiality_as_none (evaluation truth_cookie thy evaluator vs_t [])
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     of SOME Holds => true
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      | _ => false;
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  in
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    Thm.mk_binop iff ct (if result then @{cprop "PROP Code_Generator.holds"} else ct)
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  end;
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val (_, raw_check_holds_oracle) = Context.>>> (Context.map_theory_result
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  (Thm.add_oracle (@{binding holds_by_evaluation},
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  fn (thy, evaluator, vs_t, ct) => check_holds thy evaluator vs_t ct)));
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fun check_holds_oracle thy evaluator ((_, vs_ty), t) deps ct =
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  raw_check_holds_oracle (thy, evaluator, (vs_ty, t), ct);
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in
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fun dynamic_holds_conv thy = Code_Thingol.dynamic_conv thy
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  (fn program => fn vs_t => fn deps =>
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    check_holds_oracle thy (obtain_evaluator thy NONE program deps) vs_t deps)
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      o reject_vars thy;
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fun static_holds_conv thy consts = Code_Thingol.static_conv thy consts
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  (fn program => fn consts' =>
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    check_holds_oracle thy (obtain_evaluator' thy NONE program consts'))
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      o reject_vars thy;
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end; (*local*)
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(** instrumentalization **)
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fun evaluation_code thy module_name tycos consts =
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  let
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    val ctxt = Proof_Context.init_global thy;
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    val program = Code_Thingol.consts_program thy consts;
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    val (ml_modules, target_names) =
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      Code_Target.produce_code_for thy
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        target NONE module_name [] program false (map Constant consts @ map Type_Constructor tycos);
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    val ml_code = space_implode "\n\n" (map snd ml_modules);
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    val (consts', tycos') = chop (length consts) target_names;
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    val consts_map = map2 (fn const =>
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      fn NONE =>
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          error ("Constant " ^ (quote o Code.string_of_const thy) const ^
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            "\nhas a user-defined serialization")
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       | SOME const' => (const, const')) consts consts'
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    val tycos_map = map2 (fn tyco =>
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      fn NONE =>
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          error ("Type " ^ quote (Proof_Context.markup_type ctxt tyco) ^
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            "\nhas a user-defined serialization")
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        | SOME tyco' => (tyco, tyco')) tycos tycos';
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  in (ml_code, (tycos_map, consts_map)) end;
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(* by antiquotation *)
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local
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structure Code_Antiq_Data = Proof_Data
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(
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  type T = (string list * string list) * (bool
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    * (string * (string * string) list) lazy);
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  fun init _ = (([], []), (true, (Lazy.value ("", []))));
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);
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val is_first_occ = fst o snd o Code_Antiq_Data.get;
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fun register_code new_tycos new_consts ctxt =
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  let
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    val ((tycos, consts), _) = Code_Antiq_Data.get ctxt;
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    val tycos' = fold (insert (op =)) new_tycos tycos;
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    val consts' = fold (insert (op =)) new_consts consts;
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    val acc_code = Lazy.lazy (fn () =>
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      evaluation_code (Proof_Context.theory_of ctxt) structure_generated tycos' consts'
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      |> apsnd snd);
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  in Code_Antiq_Data.put ((tycos', consts'), (false, acc_code)) ctxt end;
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fun register_const const = register_code [] [const];
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fun print_code is_first const ctxt =
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  let
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    val (_, (_, acc_code)) = Code_Antiq_Data.get ctxt;
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    val (ml_code, consts_map) = Lazy.force acc_code;
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    val ml_code = if is_first then ml_code else "";
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    val body = "Isabelle." ^ the (AList.lookup (op =) consts_map const);
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  in (ml_code, body) end;
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in
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fun ml_code_antiq context raw_const =
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  let
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    val ctxt = Context.the_proof context;
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    val thy = Proof_Context.theory_of ctxt;
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    val const = Code.check_const thy raw_const;
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    val is_first = is_first_occ ctxt;
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    val ctxt' = register_const const ctxt;
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  in (Context.Proof ctxt', print_code is_first const) end;
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end; (*local*)
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(* reflection support *)
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fun check_datatype thy tyco some_consts =
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  let
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    val constrs = (map fst o snd o fst o Code.get_type thy) tyco;
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    val _ = case some_consts
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     of SOME consts =>
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          let
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            val missing_constrs = subtract (op =) consts constrs;
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            val _ = if null missing_constrs then []
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              else error ("Missing constructor(s) " ^ commas_quote missing_constrs
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                ^ " for datatype " ^ quote tyco);
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            val false_constrs = subtract (op =) constrs consts;
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            val _ = if null false_constrs then []
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              else error ("Non-constructor(s) " ^ commas_quote false_constrs
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                ^ " for datatype " ^ quote tyco)
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          in () end
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      | NONE => ();
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  in (tyco, constrs) end;
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fun add_eval_tyco (tyco, tyco') thy =
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  let
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    val k = Sign.arity_number thy tyco;
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    fun pr pr' _ [] = tyco'
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      | pr pr' _ [ty] =
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          Code_Printer.concat [pr' Code_Printer.BR ty, tyco']
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      | pr pr' _ tys =
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          Code_Printer.concat [Code_Printer.enum "," "(" ")" (map (pr' Code_Printer.BR) tys), tyco']
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  in
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    thy
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    |> Code_Target.set_printings (Type_Constructor (tyco, [(target, SOME (k, pr))]))
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  end;
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fun add_eval_constr (const, const') thy =
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  let
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    val k = Code.args_number thy const;
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    fun pr pr' fxy ts = Code_Printer.brackify fxy
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      (const' :: the_list (Code_Printer.tuplify pr' Code_Printer.BR (map fst ts)));
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  in
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    thy
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    |> Code_Target.set_printings (Constant (const,
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      [(target, SOME (Code_Printer.simple_const_syntax (k, pr)))]))
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  end;
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fun add_eval_const (const, const') = Code_Target.set_printings (Constant
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  (const, [(target, SOME (Code_Printer.simple_const_syntax (0, (K o K o K) const')))]));
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fun process_reflection (code, (tyco_map, (constr_map, const_map))) module_name NONE thy =
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      thy
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      |> Code_Target.add_reserved target module_name
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      |> Context.theory_map (exec true code)
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      |> fold (add_eval_tyco o apsnd Code_Printer.str) tyco_map
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      |> fold (add_eval_constr o apsnd Code_Printer.str) constr_map
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      |> fold (add_eval_const o apsnd Code_Printer.str) const_map
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  | process_reflection (code, _) _ (SOME file_name) thy =
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      let
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        val preamble =
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          "(* Generated from " ^
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            Path.implode (Thy_Load.thy_path (Path.basic (Context.theory_name thy))) ^
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          "; DO NOT EDIT! *)";
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        val _ = File.write (Path.explode file_name) (preamble ^ "\n\n" ^ code);
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      in
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        thy
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      end;
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fun gen_code_reflect prep_type prep_const raw_datatypes raw_functions module_name some_file thy  =
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  let
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    val datatypes = map (fn (raw_tyco, raw_cos) =>
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      (prep_type thy raw_tyco, (Option.map o map) (prep_const thy) raw_cos)) raw_datatypes;
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    val (tycos, constrs) = map_split (uncurry (check_datatype thy)) datatypes
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      |> apsnd flat;
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    val functions = map (prep_const thy) raw_functions;
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    val result = evaluation_code thy module_name tycos (constrs @ functions)
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      |> (apsnd o apsnd) (chop (length constrs));
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  in
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    thy
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    |> process_reflection result module_name some_file
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  end;
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val code_reflect = gen_code_reflect Code_Target.cert_tyco (K I);
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val code_reflect_cmd = gen_code_reflect Code_Target.read_tyco Code.read_const;
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(** Isar setup **)
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val _ = Theory.setup
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  (ML_Context.add_antiq @{binding code}
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    (Scan.depend (fn context => Scan.pass context Args.term >> ml_code_antiq context)));
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local
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   356
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01594f816e3a prefer structure Keyword, Parse, Parse_Spec, Outer_Syntax;
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val parse_datatype =
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  Parse.name --| @{keyword "="} --
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    (((Parse.sym_ident || Parse.string) >> (fn "_" => NONE | _ => Scan.fail ()))
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    || ((Parse.term ::: (Scan.repeat (@{keyword "|"} |-- Parse.term))) >> SOME));
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in
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   363
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val _ =
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  Outer_Syntax.command @{command_spec "code_reflect"}
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    "enrich runtime environment with generated code"
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    (Parse.name -- Scan.optional (@{keyword "datatypes"} |-- Parse.!!!  (parse_datatype
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      ::: Scan.repeat (@{keyword "and"} |-- parse_datatype))) []
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    -- Scan.optional (@{keyword "functions"} |-- Parse.!!!  (Scan.repeat1 Parse.name)) []
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    -- Scan.option (@{keyword "file"} |-- Parse.!!! Parse.name)
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    >> (fn (((module_name, raw_datatypes), raw_functions), some_file) => Toplevel.theory
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      (code_reflect_cmd raw_datatypes raw_functions module_name some_file)));
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end; (*local*)
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(** using external SML files as substitute for proper definitions -- only for polyml!  **)
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local
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structure Loaded_Values = Theory_Data
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(
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  type T = string list
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  val empty = []
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  val extend = I
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   386
  fun merge data : T = Library.merge (op =) data
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);
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   388
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   389
fun notify_val (string, value) = 
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   390
  let
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   391
    val _ = #enterVal ML_Env.name_space (string, value);
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   392
    val _ = Theory.setup (Loaded_Values.map (insert (op =) string));
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   393
  in () end;
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   394
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   395
fun abort _ = error "Only value bindings allowed.";
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   396
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   397
val notifying_context : use_context =
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   398
 {tune_source = #tune_source ML_Env.local_context,
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   399
  name_space =
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   400
   {lookupVal    = #lookupVal ML_Env.name_space,
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diff changeset
   401
    lookupType   = #lookupType ML_Env.name_space,
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   402
    lookupFix    = #lookupFix ML_Env.name_space,
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diff changeset
   403
    lookupStruct = #lookupStruct ML_Env.name_space,
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diff changeset
   404
    lookupSig    = #lookupSig ML_Env.name_space,
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diff changeset
   405
    lookupFunct  = #lookupFunct ML_Env.name_space,
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   406
    enterVal     = notify_val,
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diff changeset
   407
    enterType    = abort,
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diff changeset
   408
    enterFix     = abort,
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diff changeset
   409
    enterStruct  = abort,
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diff changeset
   410
    enterSig     = abort,
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   411
    enterFunct   = abort,
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diff changeset
   412
    allVal       = #allVal ML_Env.name_space,
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haftmann
parents: 39605
diff changeset
   413
    allType      = #allType ML_Env.name_space,
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haftmann
parents: 39605
diff changeset
   414
    allFix       = #allFix ML_Env.name_space,
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haftmann
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diff changeset
   415
    allStruct    = #allStruct ML_Env.name_space,
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haftmann
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diff changeset
   416
    allSig       = #allSig ML_Env.name_space,
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haftmann
parents: 39605
diff changeset
   417
    allFunct     = #allFunct ML_Env.name_space},
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diff changeset
   418
  str_of_pos = #str_of_pos ML_Env.local_context,
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parents: 39605
diff changeset
   419
  print = #print ML_Env.local_context,
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diff changeset
   420
  error = #error ML_Env.local_context};
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   421
c7cec137c48a added polyml_as_definition -- using external SML files as substitute for proper definitions -- only for polyml!
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diff changeset
   422
in
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diff changeset
   423
c7cec137c48a added polyml_as_definition -- using external SML files as substitute for proper definitions -- only for polyml!
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   424
fun use_file filepath thy =
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   425
  let
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diff changeset
   426
    val thy' = Loaded_Values.put [] thy;
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haftmann
parents: 39605
diff changeset
   427
    val _ = Context.set_thread_data ((SOME o Context.Theory) thy');
c7cec137c48a added polyml_as_definition -- using external SML files as substitute for proper definitions -- only for polyml!
haftmann
parents: 39605
diff changeset
   428
    val _ = Secure.use_text notifying_context
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haftmann
parents: 39605
diff changeset
   429
      (0, Path.implode filepath) false (File.read filepath);
45268
wenzelm
parents: 44663
diff changeset
   430
    val thy'' = Context.the_theory (Context.the_thread_data ());
39912
2ffe7060ca75 avoid antiquotation processing for code_reflect; moved ML_Context.value to Code_Runtime
haftmann
parents: 39816
diff changeset
   431
    val names = Loaded_Values.get thy'';
40320
abc52faa7761 polyml_as_definition does not require explicit dependencies on external ML files
haftmann
parents: 40257
diff changeset
   432
  in (names, thy'') end;
39816
c7cec137c48a added polyml_as_definition -- using external SML files as substitute for proper definitions -- only for polyml!
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diff changeset
   433
c7cec137c48a added polyml_as_definition -- using external SML files as substitute for proper definitions -- only for polyml!
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diff changeset
   434
end;
c7cec137c48a added polyml_as_definition -- using external SML files as substitute for proper definitions -- only for polyml!
haftmann
parents: 39605
diff changeset
   435
c7cec137c48a added polyml_as_definition -- using external SML files as substitute for proper definitions -- only for polyml!
haftmann
parents: 39605
diff changeset
   436
fun add_definiendum (ml_name, (b, T)) thy =
c7cec137c48a added polyml_as_definition -- using external SML files as substitute for proper definitions -- only for polyml!
haftmann
parents: 39605
diff changeset
   437
  thy
c7cec137c48a added polyml_as_definition -- using external SML files as substitute for proper definitions -- only for polyml!
haftmann
parents: 39605
diff changeset
   438
  |> Code_Target.add_reserved target ml_name
c7cec137c48a added polyml_as_definition -- using external SML files as substitute for proper definitions -- only for polyml!
haftmann
parents: 39605
diff changeset
   439
  |> Specification.axiomatization [(b, SOME T, NoSyn)] []
c7cec137c48a added polyml_as_definition -- using external SML files as substitute for proper definitions -- only for polyml!
haftmann
parents: 39605
diff changeset
   440
  |-> (fn ([Const (const, _)], _) =>
55150
0940309ed8f1 less clumsy namespace
haftmann
parents: 55147
diff changeset
   441
    Code_Target.set_printings (Constant (const,
52435
6646bb548c6b migration from code_(const|type|class|instance) to code_printing and from code_module to code_identifier
haftmann
parents: 52434
diff changeset
   442
      [(target, SOME (Code_Printer.simple_const_syntax (0, (K o K o K o Code_Printer.str) ml_name)))]))
55683
5732a55b9232 explicit option for "open" code generation
haftmann
parents: 55304
diff changeset
   443
  #> tap (fn thy => Code_Target.produce_code thy false [const] target NONE structure_generated []));
39816
c7cec137c48a added polyml_as_definition -- using external SML files as substitute for proper definitions -- only for polyml!
haftmann
parents: 39605
diff changeset
   444
c7cec137c48a added polyml_as_definition -- using external SML files as substitute for proper definitions -- only for polyml!
haftmann
parents: 39605
diff changeset
   445
fun process_file filepath (definienda, thy) =
c7cec137c48a added polyml_as_definition -- using external SML files as substitute for proper definitions -- only for polyml!
haftmann
parents: 39605
diff changeset
   446
  let
c7cec137c48a added polyml_as_definition -- using external SML files as substitute for proper definitions -- only for polyml!
haftmann
parents: 39605
diff changeset
   447
    val (ml_names, thy') = use_file filepath thy;
c7cec137c48a added polyml_as_definition -- using external SML files as substitute for proper definitions -- only for polyml!
haftmann
parents: 39605
diff changeset
   448
    val superfluous = subtract (fn ((name1, _), name2) => name1 = name2) definienda ml_names;
c7cec137c48a added polyml_as_definition -- using external SML files as substitute for proper definitions -- only for polyml!
haftmann
parents: 39605
diff changeset
   449
    val _ = if null superfluous then ()
c7cec137c48a added polyml_as_definition -- using external SML files as substitute for proper definitions -- only for polyml!
haftmann
parents: 39605
diff changeset
   450
      else error ("Value binding(s) " ^ commas_quote superfluous
41944
b97091ae583a Path.print is the official way to show file-system paths to users -- note that Path.implode often indicates violation of the abstract datatype;
wenzelm
parents: 41486
diff changeset
   451
        ^ " found in external file " ^ Path.print filepath
39816
c7cec137c48a added polyml_as_definition -- using external SML files as substitute for proper definitions -- only for polyml!
haftmann
parents: 39605
diff changeset
   452
        ^ " not present among the given contants binding(s).");
c7cec137c48a added polyml_as_definition -- using external SML files as substitute for proper definitions -- only for polyml!
haftmann
parents: 39605
diff changeset
   453
    val these_definienda = AList.make (the o AList.lookup (op =) definienda) ml_names;
c7cec137c48a added polyml_as_definition -- using external SML files as substitute for proper definitions -- only for polyml!
haftmann
parents: 39605
diff changeset
   454
    val thy'' = fold add_definiendum these_definienda thy';
c7cec137c48a added polyml_as_definition -- using external SML files as substitute for proper definitions -- only for polyml!
haftmann
parents: 39605
diff changeset
   455
    val definienda' = fold (AList.delete (op =)) ml_names definienda;
c7cec137c48a added polyml_as_definition -- using external SML files as substitute for proper definitions -- only for polyml!
haftmann
parents: 39605
diff changeset
   456
  in (definienda', thy'') end;
c7cec137c48a added polyml_as_definition -- using external SML files as substitute for proper definitions -- only for polyml!
haftmann
parents: 39605
diff changeset
   457
c7cec137c48a added polyml_as_definition -- using external SML files as substitute for proper definitions -- only for polyml!
haftmann
parents: 39605
diff changeset
   458
fun polyml_as_definition bTs filepaths thy =
c7cec137c48a added polyml_as_definition -- using external SML files as substitute for proper definitions -- only for polyml!
haftmann
parents: 39605
diff changeset
   459
  let
c7cec137c48a added polyml_as_definition -- using external SML files as substitute for proper definitions -- only for polyml!
haftmann
parents: 39605
diff changeset
   460
    val definienda = map (fn bT => ((Binding.name_of o fst) bT, bT)) bTs;
c7cec137c48a added polyml_as_definition -- using external SML files as substitute for proper definitions -- only for polyml!
haftmann
parents: 39605
diff changeset
   461
    val (remaining, thy') = fold process_file filepaths (definienda, thy);
c7cec137c48a added polyml_as_definition -- using external SML files as substitute for proper definitions -- only for polyml!
haftmann
parents: 39605
diff changeset
   462
    val _ = if null remaining then ()
c7cec137c48a added polyml_as_definition -- using external SML files as substitute for proper definitions -- only for polyml!
haftmann
parents: 39605
diff changeset
   463
      else error ("Constant binding(s) " ^ commas_quote (map fst remaining)
c7cec137c48a added polyml_as_definition -- using external SML files as substitute for proper definitions -- only for polyml!
haftmann
parents: 39605
diff changeset
   464
        ^ " not present in external file(s).");
c7cec137c48a added polyml_as_definition -- using external SML files as substitute for proper definitions -- only for polyml!
haftmann
parents: 39605
diff changeset
   465
  in thy' end;
c7cec137c48a added polyml_as_definition -- using external SML files as substitute for proper definitions -- only for polyml!
haftmann
parents: 39605
diff changeset
   466
28054
2b84d34c5d02 restructured and split code serializer module
haftmann
parents:
diff changeset
   467
end; (*struct*)