haftmann@39401: (*  Title:      Tools/Code/code_runtime.ML
haftmann@28054:     Author:     Florian Haftmann, TU Muenchen
haftmann@28054: 
haftmann@34028: Runtime services building on code generation into implementation language SML.
haftmann@28054: *)
haftmann@28054: 
haftmann@39401: signature CODE_RUNTIME =
haftmann@28054: sig
haftmann@34028:   val target: string
haftmann@39912:   val value: Proof.context ->
haftmann@39912:     (Proof.context -> unit -> 'a) * ((unit -> 'a) -> Proof.context -> Proof.context) * string ->
haftmann@39912:     string * string -> 'a
haftmann@39473:   type 'a cookie = (Proof.context -> unit -> 'a) * ((unit -> 'a) -> Proof.context -> Proof.context) * string
haftmann@55757:   val dynamic_value: 'a cookie -> Proof.context -> string option
haftmann@39473:     -> ((term -> term) -> 'a -> 'a) -> term -> string list -> 'a option
haftmann@55757:   val dynamic_value_strict: 'a cookie -> Proof.context -> string option
haftmann@39473:     -> ((term -> term) -> 'a -> 'a) -> term -> string list -> 'a
haftmann@55757:   val dynamic_value_exn: 'a cookie -> Proof.context -> string option
haftmann@39473:     -> ((term -> term) -> 'a -> 'a) -> term -> string list -> 'a Exn.result
haftmann@55757:   val static_value: 'a cookie -> Proof.context -> string option
haftmann@55757:     -> ((term -> term) -> 'a -> 'a) -> string list -> Proof.context -> term -> 'a option
haftmann@55757:   val static_value_strict: 'a cookie -> Proof.context -> string option
haftmann@55757:     -> ((term -> term) -> 'a -> 'a) -> string list -> Proof.context -> term -> 'a
haftmann@55757:   val static_value_exn: 'a cookie -> Proof.context -> string option
haftmann@55757:     -> ((term -> term) -> 'a -> 'a) -> string list -> Proof.context -> term -> 'a Exn.result
haftmann@55757:   val dynamic_holds_conv: Proof.context -> conv
haftmann@55757:   val static_holds_conv: Proof.context -> string list -> Proof.context -> conv
haftmann@40421:   val code_reflect: (string * string list option) list -> string list -> string
haftmann@40421:     -> string option -> theory -> theory
haftmann@39473:   datatype truth = Holds
haftmann@39473:   val put_truth: (unit -> truth) -> Proof.context -> Proof.context
haftmann@40150:   val trace: bool Unsynchronized.ref
haftmann@39816:   val polyml_as_definition: (binding * typ) list -> Path.T list -> theory -> theory
haftmann@28054: end;
haftmann@28054: 
haftmann@39401: structure Code_Runtime : CODE_RUNTIME =
haftmann@28054: struct
haftmann@28054: 
haftmann@55150: open Basic_Code_Symbol;
haftmann@39473: open Basic_Code_Thingol;
haftmann@39473: 
haftmann@39404: (** evaluation **)
haftmann@33992: 
haftmann@39473: (* technical prerequisites *)
haftmann@39473: 
haftmann@39473: val this = "Code_Runtime";
haftmann@39473: val s_truth = Long_Name.append this "truth";
haftmann@39473: val s_Holds = Long_Name.append this "Holds";
haftmann@39473: 
haftmann@34028: val target = "Eval";
haftmann@44663: val structure_generated = "Generated_Code";
haftmann@28054: 
haftmann@39473: datatype truth = Holds;
haftmann@39422: 
wenzelm@53171: val _ = Theory.setup
haftmann@55147:   (Code_Target.extend_target (target, (Code_ML.target_SML, I))
haftmann@55150:   #> Code_Target.set_printings (Type_Constructor (@{type_name prop},
haftmann@52435:     [(target, SOME (0, (K o K o K) (Code_Printer.str s_truth)))]))
haftmann@55150:   #> Code_Target.set_printings (Constant (@{const_name Code_Generator.holds},
haftmann@52435:     [(target, SOME (Code_Printer.plain_const_syntax s_Holds))]))
haftmann@39473:   #> Code_Target.add_reserved target this
wenzelm@53171:   #> fold (Code_Target.add_reserved target) ["oo", "ooo", "oooo", "upto", "downto", "orf", "andf"]);
haftmann@39485:        (*avoid further pervasive infix names*)
haftmann@39473: 
haftmann@40150: val trace = Unsynchronized.ref false;
haftmann@40150: 
haftmann@39912: fun exec verbose code =
haftmann@40150:   (if ! trace then tracing code else ();
haftmann@40257:   ML_Context.exec (fn () => Secure.use_text ML_Env.local_context (0, "generated code") verbose code));
haftmann@39912: 
haftmann@39912: fun value ctxt (get, put, put_ml) (prelude, value) =
haftmann@39912:   let
haftmann@39912:     val code = (prelude
haftmann@39912:       ^ "\nval _ = Context.set_thread_data (SOME (Context.map_proof (" ^ put_ml
haftmann@39912:       ^ " (fn () => " ^ value ^ ")) (ML_Context.the_generic_context ())))");
haftmann@39912:     val ctxt' = ctxt
haftmann@39912:       |> put (fn () => error ("Bad evaluation for " ^ quote put_ml))
haftmann@39912:       |> Context.proof_map (exec false code);
haftmann@39912:   in get ctxt' () end;
haftmann@39912: 
haftmann@39473: 
haftmann@39473: (* evaluation into target language values *)
haftmann@39473: 
haftmann@39473: type 'a cookie = (Proof.context -> unit -> 'a) * ((unit -> 'a) -> Proof.context -> Proof.context) * string;
haftmann@39473: 
haftmann@55757: fun reject_vars ctxt t =
haftmann@55757:   ((Sign.no_frees ctxt o Sign.no_vars ctxt o map_types (K dummyT)) t; t);
haftmann@39605: 
haftmann@55757: fun obtain_evaluator ctxt some_target program consts =
haftmann@55757:   let
haftmann@55757:     val evaluator' = Code_Target.evaluator ctxt (the_default target some_target) program consts false;
haftmann@55757:   in
haftmann@55757:     evaluator'
haftmann@55757:     #> apfst (fn ml_modules => space_implode "\n\n" (map snd ml_modules))
haftmann@55757:   end;
haftmann@39485: 
haftmann@55757: fun evaluation cookie ctxt evaluator vs_t args =
haftmann@39404:   let
haftmann@41347:     val (program_code, value_name) = evaluator vs_t;
haftmann@39473:     val value_code = space_implode " "
haftmann@41347:       (value_name :: "()" :: map (enclose "(" ")") args);
wenzelm@40235:   in Exn.interruptible_capture (value ctxt cookie) (program_code, value_code) end;
haftmann@39473: 
haftmann@39473: fun partiality_as_none e = SOME (Exn.release e)
haftmann@39473:   handle General.Match => NONE
haftmann@39473:     | General.Bind => NONE
haftmann@39473:     | General.Fail _ => NONE;
haftmann@39473: 
haftmann@55757: fun dynamic_value_exn cookie ctxt some_target postproc t args =
haftmann@39473:   let
haftmann@55757:     val _ = reject_vars ctxt t;
haftmann@41099:     val _ = if ! trace
haftmann@55757:       then tracing ("Evaluation of term " ^ quote (Syntax.string_of_term ctxt t))
haftmann@41099:       else ()
haftmann@55147:     fun evaluator program ((_, vs_ty), t) deps =
haftmann@55757:       evaluation cookie ctxt (obtain_evaluator ctxt some_target program deps) (vs_ty, t) args;
haftmann@55757:   in Code_Thingol.dynamic_value ctxt (Exn.map_result o postproc) evaluator t end;
haftmann@39473: 
haftmann@55757: fun dynamic_value_strict cookie ctxt some_target postproc t args =
haftmann@55757:   Exn.release (dynamic_value_exn cookie ctxt some_target postproc t args);
haftmann@39473: 
haftmann@55757: fun dynamic_value cookie ctxt some_target postproc t args =
haftmann@55757:   partiality_as_none (dynamic_value_exn cookie ctxt some_target postproc t args);
haftmann@39473: 
haftmann@55757: fun static_evaluator cookie ctxt some_target program consts' =
haftmann@39473:   let
haftmann@55757:     val evaluator = obtain_evaluator ctxt some_target program (map Constant consts');
haftmann@55757:     val evaluation' = evaluation cookie ctxt evaluator;
haftmann@55757:   in fn _ => fn ((_, vs_ty), t) => fn _ => evaluation' (vs_ty, t) [] end;
haftmann@39473: 
haftmann@55757: fun static_value_exn cookie ctxt some_target postproc consts =
haftmann@55757:   let
haftmann@55757:     val evaluator = Code_Thingol.static_value ctxt (Exn.map_result o postproc) consts
haftmann@55757:       (static_evaluator cookie ctxt some_target);
haftmann@55757:   in fn ctxt' => evaluator ctxt' o reject_vars ctxt' end;
haftmann@39473: 
haftmann@55757: fun static_value_strict cookie ctxt some_target postproc consts =
haftmann@55757:   Exn.release oo static_value_exn cookie ctxt some_target postproc consts;
haftmann@41347: 
haftmann@41347: fun static_value cookie thy some_target postproc consts =
haftmann@55757:   partiality_as_none oo static_value_exn cookie thy some_target postproc consts;
haftmann@39473: 
haftmann@39473: 
haftmann@39473: (* evaluation for truth or nothing *)
haftmann@39473: 
wenzelm@39820: structure Truth_Result = Proof_Data
wenzelm@39820: (
haftmann@39473:   type T = unit -> truth
wenzelm@41472:   (* FIXME avoid user error with non-user text *)
haftmann@39473:   fun init _ () = error "Truth_Result"
haftmann@39473: );
haftmann@39473: val put_truth = Truth_Result.put;
haftmann@39473: val truth_cookie = (Truth_Result.get, put_truth, Long_Name.append this "put_truth");
haftmann@39473: 
haftmann@55757: val reject_vars = fn ctxt => tap (reject_vars ctxt o Thm.term_of);
haftmann@39605: 
haftmann@41349: local
haftmann@41349: 
haftmann@55757: fun check_holds ctxt evaluator vs_t ct =
haftmann@39473:   let
haftmann@55757:     val thy = Proof_Context.theory_of ctxt;
haftmann@39473:     val t = Thm.term_of ct;
haftmann@39473:     val _ = if fastype_of t <> propT
haftmann@39473:       then error ("Not a proposition: " ^ Syntax.string_of_term_global thy t)
haftmann@39473:       else ();
haftmann@39473:     val iff = Thm.cterm_of thy (Term.Const ("==", propT --> propT --> propT));
haftmann@55757:     val result = case partiality_as_none (evaluation truth_cookie ctxt evaluator vs_t [])
haftmann@39473:      of SOME Holds => true
haftmann@39473:       | _ => false;
haftmann@39473:   in
haftmann@39473:     Thm.mk_binop iff ct (if result then @{cprop "PROP Code_Generator.holds"} else ct)
haftmann@39473:   end;
haftmann@39473: 
haftmann@39473: val (_, raw_check_holds_oracle) = Context.>>> (Context.map_theory_result
wenzelm@43619:   (Thm.add_oracle (@{binding holds_by_evaluation},
haftmann@55757:   fn (ctxt, evaluator, vs_t, ct) => check_holds ctxt evaluator vs_t ct)));
haftmann@39473: 
haftmann@55757: fun check_holds_oracle ctxt evaluator ((_, vs_ty), t) deps ct =
haftmann@55757:   raw_check_holds_oracle (ctxt, evaluator, (vs_ty, t), ct);
haftmann@41349: 
haftmann@41349: in
haftmann@39485: 
haftmann@55757: fun dynamic_holds_conv ctxt = Code_Thingol.dynamic_conv ctxt
haftmann@55147:   (fn program => fn vs_t => fn deps =>
haftmann@55757:     check_holds_oracle ctxt (obtain_evaluator ctxt NONE program deps) vs_t deps)
haftmann@55757:       o reject_vars ctxt;
haftmann@39473: 
haftmann@55757: fun static_holds_conv ctxt consts =
haftmann@55757:   Code_Thingol.static_conv ctxt consts (fn program => fn consts' =>
haftmann@55757:     let
haftmann@55757:       val evaluator' = obtain_evaluator ctxt NONE program (map Constant consts')
haftmann@55757:     in
haftmann@55757:       fn ctxt' => fn vs_t => fn deps => check_holds_oracle ctxt' evaluator' vs_t deps o reject_vars ctxt'
haftmann@55757:     end);
haftmann@55757: 
haftmann@55757: (* o reject_vars ctxt'*)
haftmann@41349: 
haftmann@41349: end; (*local*)
haftmann@39404: 
haftmann@39404: 
haftmann@39404: (** instrumentalization **)
haftmann@39404: 
haftmann@55757: fun evaluation_code ctxt module_name tycos consts =
haftmann@33992:   let
haftmann@55757:     val thy = Proof_Context.theory_of ctxt;
haftmann@55188:     val program = Code_Thingol.consts_program thy consts;
haftmann@48568:     val (ml_modules, target_names) =
haftmann@55757:       Code_Target.produce_code_for ctxt
haftmann@55683:         target NONE module_name [] program false (map Constant consts @ map Type_Constructor tycos);
haftmann@48568:     val ml_code = space_implode "\n\n" (map snd ml_modules);
haftmann@55147:     val (consts', tycos') = chop (length consts) target_names;
wenzelm@42359:     val consts_map = map2 (fn const =>
wenzelm@42359:       fn NONE =>
wenzelm@42359:           error ("Constant " ^ (quote o Code.string_of_const thy) const ^
wenzelm@42359:             "\nhas a user-defined serialization")
haftmann@55147:        | SOME const' => (const, const')) consts consts'
wenzelm@42359:     val tycos_map = map2 (fn tyco =>
wenzelm@42359:       fn NONE =>
wenzelm@55304:           error ("Type " ^ quote (Proof_Context.markup_type ctxt tyco) ^
wenzelm@42359:             "\nhas a user-defined serialization")
haftmann@55147:         | SOME tyco' => (tyco, tyco')) tycos tycos';
haftmann@34028:   in (ml_code, (tycos_map, consts_map)) end;
haftmann@28054: 
haftmann@28054: 
haftmann@39404: (* by antiquotation *)
haftmann@28054: 
haftmann@28054: local
haftmann@28054: 
haftmann@38930: structure Code_Antiq_Data = Proof_Data
haftmann@28054: (
haftmann@38930:   type T = (string list * string list) * (bool
haftmann@40421:     * (string * (string * string) list) lazy);
haftmann@40421:   fun init _ = (([], []), (true, (Lazy.value ("", []))));
haftmann@28054: );
haftmann@28054: 
haftmann@38930: val is_first_occ = fst o snd o Code_Antiq_Data.get;
haftmann@28054: 
haftmann@30962: fun register_code new_tycos new_consts ctxt =
haftmann@28054:   let
haftmann@38930:     val ((tycos, consts), _) = Code_Antiq_Data.get ctxt;
haftmann@30962:     val tycos' = fold (insert (op =)) new_tycos tycos;
haftmann@30962:     val consts' = fold (insert (op =)) new_consts consts;
haftmann@38930:     val acc_code = Lazy.lazy (fn () =>
haftmann@55757:       evaluation_code ctxt structure_generated tycos' consts'
haftmann@40422:       |> apsnd snd);
haftmann@38930:   in Code_Antiq_Data.put ((tycos', consts'), (false, acc_code)) ctxt end;
haftmann@30962: 
haftmann@30962: fun register_const const = register_code [] [const];
haftmann@28054: 
haftmann@40421: fun print_code is_first const ctxt =
haftmann@30962:   let
haftmann@38930:     val (_, (_, acc_code)) = Code_Antiq_Data.get ctxt;
haftmann@40421:     val (ml_code, consts_map) = Lazy.force acc_code;
haftmann@40422:     val ml_code = if is_first then ml_code else "";
wenzelm@41486:     val body = "Isabelle." ^ the (AList.lookup (op =) consts_map const);
wenzelm@41376:   in (ml_code, body) end;
haftmann@28054: 
haftmann@28054: in
haftmann@28054: 
wenzelm@56069: fun ml_code_antiq raw_const ctxt =
haftmann@28054:   let
wenzelm@53169:     val thy = Proof_Context.theory_of ctxt;
wenzelm@53169:     val const = Code.check_const thy raw_const;
wenzelm@53169:     val is_first = is_first_occ ctxt;
wenzelm@56069:   in (print_code is_first const, register_const const ctxt) end;
haftmann@30962: 
haftmann@28054: end; (*local*)
haftmann@28054: 
haftmann@28054: 
haftmann@39404: (* reflection support *)
haftmann@36470: 
haftmann@40421: fun check_datatype thy tyco some_consts =
haftmann@36470:   let
haftmann@40726:     val constrs = (map fst o snd o fst o Code.get_type thy) tyco;
haftmann@40421:     val _ = case some_consts
haftmann@40421:      of SOME consts =>
haftmann@40421:           let
haftmann@40421:             val missing_constrs = subtract (op =) consts constrs;
haftmann@40421:             val _ = if null missing_constrs then []
wenzelm@45430:               else error ("Missing constructor(s) " ^ commas_quote missing_constrs
haftmann@40421:                 ^ " for datatype " ^ quote tyco);
haftmann@40421:             val false_constrs = subtract (op =) constrs consts;
haftmann@40421:             val _ = if null false_constrs then []
wenzelm@45430:               else error ("Non-constructor(s) " ^ commas_quote false_constrs
haftmann@40421:                 ^ " for datatype " ^ quote tyco)
haftmann@40421:           in () end
haftmann@40421:       | NONE => ();
haftmann@40421:   in (tyco, constrs) end;
haftmann@36470: 
haftmann@36470: fun add_eval_tyco (tyco, tyco') thy =
haftmann@36470:   let
haftmann@36470:     val k = Sign.arity_number thy tyco;
haftmann@40421:     fun pr pr' _ [] = tyco'
haftmann@40421:       | pr pr' _ [ty] =
haftmann@36470:           Code_Printer.concat [pr' Code_Printer.BR ty, tyco']
haftmann@40421:       | pr pr' _ tys =
haftmann@36470:           Code_Printer.concat [Code_Printer.enum "," "(" ")" (map (pr' Code_Printer.BR) tys), tyco']
haftmann@36470:   in
haftmann@36470:     thy
haftmann@55150:     |> Code_Target.set_printings (Type_Constructor (tyco, [(target, SOME (k, pr))]))
haftmann@36470:   end;
haftmann@36470: 
haftmann@36514: fun add_eval_constr (const, const') thy =
haftmann@36514:   let
haftmann@36514:     val k = Code.args_number thy const;
haftmann@36514:     fun pr pr' fxy ts = Code_Printer.brackify fxy
haftmann@38922:       (const' :: the_list (Code_Printer.tuplify pr' Code_Printer.BR (map fst ts)));
haftmann@36514:   in
haftmann@36514:     thy
haftmann@55150:     |> Code_Target.set_printings (Constant (const,
haftmann@52435:       [(target, SOME (Code_Printer.simple_const_syntax (k, pr)))]))
haftmann@36514:   end;
haftmann@36514: 
haftmann@55150: fun add_eval_const (const, const') = Code_Target.set_printings (Constant
haftmann@52435:   (const, [(target, SOME (Code_Printer.simple_const_syntax (0, (K o K o K) const')))]));
haftmann@36470: 
haftmann@39912: fun process_reflection (code, (tyco_map, (constr_map, const_map))) module_name NONE thy =
haftmann@38935:       thy
haftmann@38935:       |> Code_Target.add_reserved target module_name
haftmann@39912:       |> Context.theory_map (exec true code)
haftmann@38935:       |> fold (add_eval_tyco o apsnd Code_Printer.str) tyco_map
haftmann@38935:       |> fold (add_eval_constr o apsnd Code_Printer.str) constr_map
haftmann@38935:       |> fold (add_eval_const o apsnd Code_Printer.str) const_map
haftmann@39912:   | process_reflection (code, _) _ (SOME file_name) thy =
haftmann@36470:       let
wenzelm@37950:         val preamble =
wenzelm@46737:           "(* Generated from " ^
wenzelm@56208:             Path.implode (Resources.thy_path (Path.basic (Context.theory_name thy))) ^
wenzelm@46737:           "; DO NOT EDIT! *)";
haftmann@39912:         val _ = File.write (Path.explode file_name) (preamble ^ "\n\n" ^ code);
haftmann@36470:       in
haftmann@36470:         thy
haftmann@36470:       end;
haftmann@36470: 
haftmann@36470: fun gen_code_reflect prep_type prep_const raw_datatypes raw_functions module_name some_file thy  =
haftmann@36470:   let
haftmann@55757:     val ctxt = Proof_Context.init_global thy;
haftmann@36470:     val datatypes = map (fn (raw_tyco, raw_cos) =>
haftmann@55757:       (prep_type ctxt raw_tyco, (Option.map o map) (prep_const thy) raw_cos)) raw_datatypes;
haftmann@40421:     val (tycos, constrs) = map_split (uncurry (check_datatype thy)) datatypes
haftmann@40421:       |> apsnd flat;
haftmann@36470:     val functions = map (prep_const thy) raw_functions;
haftmann@55757:     val result = evaluation_code ctxt module_name tycos (constrs @ functions)
haftmann@36514:       |> (apsnd o apsnd) (chop (length constrs));
haftmann@36470:   in
haftmann@36470:     thy
haftmann@39485:     |> process_reflection result module_name some_file
haftmann@36470:   end;
haftmann@36470: 
haftmann@39422: val code_reflect = gen_code_reflect Code_Target.cert_tyco (K I);
haftmann@36470: val code_reflect_cmd = gen_code_reflect Code_Target.read_tyco Code.read_const;
haftmann@36470: 
haftmann@36470: 
haftmann@28054: (** Isar setup **)
haftmann@28054: 
wenzelm@56069: val _ =
wenzelm@56205:   Theory.setup (ML_Antiquotation.declaration @{binding code} Args.term (fn _ => ml_code_antiq));
haftmann@28054: 
haftmann@36470: local
haftmann@36470: 
wenzelm@36960: val parse_datatype =
wenzelm@46949:   Parse.name --| @{keyword "="} --
haftmann@40711:     (((Parse.sym_ident || Parse.string) >> (fn "_" => NONE | _ => Scan.fail ()))
wenzelm@46949:     || ((Parse.term ::: (Scan.repeat (@{keyword "|"} |-- Parse.term))) >> SOME));
haftmann@36470: 
haftmann@36470: in
haftmann@36470: 
haftmann@36470: val _ =
wenzelm@46961:   Outer_Syntax.command @{command_spec "code_reflect"}
wenzelm@46961:     "enrich runtime environment with generated code"
haftmann@52434:     (Parse.name -- Scan.optional (@{keyword "datatypes"} |-- Parse.!!!  (parse_datatype
wenzelm@46949:       ::: Scan.repeat (@{keyword "and"} |-- parse_datatype))) []
haftmann@52434:     -- Scan.optional (@{keyword "functions"} |-- Parse.!!!  (Scan.repeat1 Parse.name)) []
haftmann@52434:     -- Scan.option (@{keyword "file"} |-- Parse.!!! Parse.name)
wenzelm@46961:     >> (fn (((module_name, raw_datatypes), raw_functions), some_file) => Toplevel.theory
wenzelm@46961:       (code_reflect_cmd raw_datatypes raw_functions module_name some_file)));
haftmann@36470: 
haftmann@36470: end; (*local*)
haftmann@36470: 
haftmann@39816: 
haftmann@39816: (** using external SML files as substitute for proper definitions -- only for polyml!  **)
haftmann@39816: 
haftmann@39816: local
haftmann@39816: 
wenzelm@39820: structure Loaded_Values = Theory_Data
wenzelm@39820: (
haftmann@39816:   type T = string list
haftmann@39816:   val empty = []
wenzelm@41472:   val extend = I
wenzelm@39820:   fun merge data : T = Library.merge (op =) data
haftmann@39816: );
haftmann@39816: 
haftmann@39816: fun notify_val (string, value) = 
haftmann@39816:   let
haftmann@39816:     val _ = #enterVal ML_Env.name_space (string, value);
wenzelm@53171:     val _ = Theory.setup (Loaded_Values.map (insert (op =) string));
haftmann@39816:   in () end;
haftmann@39816: 
haftmann@39816: fun abort _ = error "Only value bindings allowed.";
haftmann@39816: 
haftmann@39816: val notifying_context : use_context =
haftmann@39816:  {tune_source = #tune_source ML_Env.local_context,
haftmann@39816:   name_space =
haftmann@39816:    {lookupVal    = #lookupVal ML_Env.name_space,
haftmann@39816:     lookupType   = #lookupType ML_Env.name_space,
haftmann@39816:     lookupFix    = #lookupFix ML_Env.name_space,
haftmann@39816:     lookupStruct = #lookupStruct ML_Env.name_space,
haftmann@39816:     lookupSig    = #lookupSig ML_Env.name_space,
haftmann@39816:     lookupFunct  = #lookupFunct ML_Env.name_space,
haftmann@39816:     enterVal     = notify_val,
haftmann@39816:     enterType    = abort,
haftmann@39816:     enterFix     = abort,
haftmann@39816:     enterStruct  = abort,
haftmann@39816:     enterSig     = abort,
haftmann@39816:     enterFunct   = abort,
haftmann@39816:     allVal       = #allVal ML_Env.name_space,
haftmann@39816:     allType      = #allType ML_Env.name_space,
haftmann@39816:     allFix       = #allFix ML_Env.name_space,
haftmann@39816:     allStruct    = #allStruct ML_Env.name_space,
haftmann@39816:     allSig       = #allSig ML_Env.name_space,
haftmann@39816:     allFunct     = #allFunct ML_Env.name_space},
haftmann@39816:   str_of_pos = #str_of_pos ML_Env.local_context,
haftmann@39816:   print = #print ML_Env.local_context,
haftmann@39816:   error = #error ML_Env.local_context};
haftmann@39816: 
haftmann@39816: in
haftmann@39816: 
haftmann@39816: fun use_file filepath thy =
haftmann@39816:   let
haftmann@39816:     val thy' = Loaded_Values.put [] thy;
haftmann@39816:     val _ = Context.set_thread_data ((SOME o Context.Theory) thy');
haftmann@39816:     val _ = Secure.use_text notifying_context
haftmann@39816:       (0, Path.implode filepath) false (File.read filepath);
wenzelm@45268:     val thy'' = Context.the_theory (Context.the_thread_data ());
haftmann@39912:     val names = Loaded_Values.get thy'';
haftmann@40320:   in (names, thy'') end;
haftmann@39816: 
haftmann@39816: end;
haftmann@39816: 
haftmann@39816: fun add_definiendum (ml_name, (b, T)) thy =
haftmann@39816:   thy
haftmann@39816:   |> Code_Target.add_reserved target ml_name
haftmann@39816:   |> Specification.axiomatization [(b, SOME T, NoSyn)] []
haftmann@39816:   |-> (fn ([Const (const, _)], _) =>
haftmann@55150:     Code_Target.set_printings (Constant (const,
haftmann@52435:       [(target, SOME (Code_Printer.simple_const_syntax (0, (K o K o K o Code_Printer.str) ml_name)))]))
haftmann@55757:   #> tap (fn thy => Code_Target.produce_code (Proof_Context.init_global thy) false [const] target NONE structure_generated []));
haftmann@39816: 
haftmann@39816: fun process_file filepath (definienda, thy) =
haftmann@39816:   let
haftmann@39816:     val (ml_names, thy') = use_file filepath thy;
haftmann@39816:     val superfluous = subtract (fn ((name1, _), name2) => name1 = name2) definienda ml_names;
haftmann@39816:     val _ = if null superfluous then ()
haftmann@39816:       else error ("Value binding(s) " ^ commas_quote superfluous
wenzelm@41944:         ^ " found in external file " ^ Path.print filepath
haftmann@39816:         ^ " not present among the given contants binding(s).");
haftmann@39816:     val these_definienda = AList.make (the o AList.lookup (op =) definienda) ml_names;
haftmann@39816:     val thy'' = fold add_definiendum these_definienda thy';
haftmann@39816:     val definienda' = fold (AList.delete (op =)) ml_names definienda;
haftmann@39816:   in (definienda', thy'') end;
haftmann@39816: 
haftmann@39816: fun polyml_as_definition bTs filepaths thy =
haftmann@39816:   let
haftmann@39816:     val definienda = map (fn bT => ((Binding.name_of o fst) bT, bT)) bTs;
haftmann@39816:     val (remaining, thy') = fold process_file filepaths (definienda, thy);
haftmann@39816:     val _ = if null remaining then ()
haftmann@39816:       else error ("Constant binding(s) " ^ commas_quote (map fst remaining)
haftmann@39816:         ^ " not present in external file(s).");
haftmann@39816:   in thy' end;
haftmann@39816: 
haftmann@28054: end; (*struct*)