src/Tools/code/code_target.ML
author haftmann
Wed Oct 22 14:15:45 2008 +0200 (2008-10-22)
changeset 28663 bd8438543bf2
parent 28090 29af3c712d2b
child 28690 fc51fa5efea1
permissions -rw-r--r--
code identifier namings are no longer imperative
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(*  Title:      Tools/code/code_target.ML
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    ID:         $Id$
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    Author:     Florian Haftmann, TU Muenchen
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Serializer from intermediate language ("Thin-gol") to target languages.
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*)
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signature CODE_TARGET =
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sig
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  include CODE_PRINTER
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  type serializer
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  val add_target: string * (serializer * literals) -> theory -> theory
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  val extend_target: string *
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      (string * (Code_Thingol.naming -> Code_Thingol.program -> Code_Thingol.program))
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    -> theory -> theory
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  val assert_target: theory -> string -> string
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  type destination
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  type serialization
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  val parse_args: (OuterLex.token list -> 'a * OuterLex.token list)
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    -> OuterLex.token list -> 'a
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  val stmt_names_of_destination: destination -> string list
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  val code_of_pretty: Pretty.T -> string
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  val code_writeln: Pretty.T -> unit
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  val mk_serialization: string -> ('a -> unit) option
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    -> (Path.T option -> 'a -> unit)
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    -> ('a -> string * string option list)
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    -> 'a -> serialization
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  val serialize: theory -> string -> string option -> Args.T list
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    -> Code_Thingol.naming -> Code_Thingol.program -> string list -> serialization
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  val serialize_custom: theory -> string * (serializer * literals)
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    -> Code_Thingol.naming -> Code_Thingol.program -> string list -> string * string option list
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  val the_literals: theory -> string -> literals
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  val compile: serialization -> unit
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  val export: serialization -> unit
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  val file: Path.T -> serialization -> unit
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  val string: string list -> serialization -> string
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  val code_of: theory -> string -> string -> string list -> string list -> string
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  val code_width: int ref
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  val allow_abort: string -> theory -> theory
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  val add_syntax_class: string -> class
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    -> (string * (string * string) list) option -> theory -> theory
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  val add_syntax_inst: string -> string * class -> bool -> theory -> theory
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  val add_syntax_tyco: string -> string -> tyco_syntax option -> theory -> theory
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  val add_syntax_const: string -> string -> const_syntax option -> theory -> theory
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  val add_reserved: string -> string -> theory -> theory
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end;
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structure Code_Target : CODE_TARGET =
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struct
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open Basic_Code_Thingol;
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open Code_Printer;
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(** basics **)
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datatype destination = Compile | Export | File of Path.T | String of string list;
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type serialization = destination -> (string * string option list) option;
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val code_width = ref 80; (*FIXME after Pretty module no longer depends on print mode*)
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fun code_setmp f = PrintMode.setmp [] (Pretty.setmp_margin (!code_width) f);
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fun code_of_pretty p = code_setmp Pretty.string_of p ^ "\n";
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fun code_writeln p = Pretty.setmp_margin (!code_width) Pretty.writeln p;
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(*FIXME why another code_setmp?*)
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fun compile f = (code_setmp f Compile; ());
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fun export f = (code_setmp f Export; ());
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fun file p f = (code_setmp f (File p); ());
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fun string cs f = fst (the (code_setmp f (String cs)));
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fun stmt_names_of_destination (String stmts) = stmts
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  | stmt_names_of_destination _ = [];
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fun mk_serialization target (SOME comp) _ _ code Compile = (comp code; NONE)
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  | mk_serialization target NONE _ _ _ Compile = error (target ^ ": no internal compilation")
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  | mk_serialization target _ output _ code Export = (output NONE code ; NONE)
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  | mk_serialization target _ output _ code (File file) = (output (SOME file) code; NONE)
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  | mk_serialization target _ _ string code (String _) = SOME (string code);
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(** theory data **)
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structure StringPairTab = Code_Name.StringPairTab;
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datatype name_syntax_table = NameSyntaxTable of {
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  class: class_syntax Symtab.table,
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  instance: unit StringPairTab.table,
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  tyco: tyco_syntax Symtab.table,
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  const: const_syntax Symtab.table
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};
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fun mk_name_syntax_table ((class, instance), (tyco, const)) =
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  NameSyntaxTable { class = class, instance = instance, tyco = tyco, const = const };
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fun map_name_syntax_table f (NameSyntaxTable { class, instance, tyco, const }) =
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  mk_name_syntax_table (f ((class, instance), (tyco, const)));
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fun merge_name_syntax_table (NameSyntaxTable { class = class1, instance = instance1, tyco = tyco1, const = const1 },
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    NameSyntaxTable { class = class2, instance = instance2, tyco = tyco2, const = const2 }) =
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  mk_name_syntax_table (
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    (Symtab.join (K snd) (class1, class2),
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       StringPairTab.join (K snd) (instance1, instance2)),
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    (Symtab.join (K snd) (tyco1, tyco2),
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       Symtab.join (K snd) (const1, const2))
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  );
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type serializer =
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  string option                         (*module name*)
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  -> Args.T list                        (*arguments*)
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  -> (string -> string)                 (*labelled_name*)
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  -> string list                        (*reserved symbols*)
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  -> (string * Pretty.T) list           (*includes*)
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  -> (string -> string option)          (*module aliasses*)
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  -> (string -> class_syntax option)
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  -> (string -> tyco_syntax option)
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  -> (string -> const_syntax option)
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  -> Code_Thingol.naming
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  -> Code_Thingol.program
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  -> string list                        (*selected statements*)
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  -> serialization;
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datatype serializer_entry = Serializer of serializer * literals
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  | Extends of string * (Code_Thingol.naming -> Code_Thingol.program -> Code_Thingol.program);
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datatype target = Target of {
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  serial: serial,
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  serializer: serializer_entry,
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  reserved: string list,
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  includes: Pretty.T Symtab.table,
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  name_syntax_table: name_syntax_table,
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  module_alias: string Symtab.table
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};
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fun mk_target ((serial, serializer), ((reserved, includes), (name_syntax_table, module_alias))) =
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  Target { serial = serial, serializer = serializer, reserved = reserved, 
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    includes = includes, name_syntax_table = name_syntax_table, module_alias = module_alias };
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fun map_target f ( Target { serial, serializer, reserved, includes, name_syntax_table, module_alias } ) =
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  mk_target (f ((serial, serializer), ((reserved, includes), (name_syntax_table, module_alias))));
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fun merge_target strict target (Target { serial = serial1, serializer = serializer,
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  reserved = reserved1, includes = includes1,
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  name_syntax_table = name_syntax_table1, module_alias = module_alias1 },
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    Target { serial = serial2, serializer = _,
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      reserved = reserved2, includes = includes2,
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      name_syntax_table = name_syntax_table2, module_alias = module_alias2 }) =
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  if serial1 = serial2 orelse not strict then
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    mk_target ((serial1, serializer),
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      ((merge (op =) (reserved1, reserved2), Symtab.merge (op =) (includes1, includes2)),
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        (merge_name_syntax_table (name_syntax_table1, name_syntax_table2),
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          Symtab.join (K snd) (module_alias1, module_alias2))
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    ))
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  else
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    error ("Incompatible serializers: " ^ quote target);
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structure CodeTargetData = TheoryDataFun
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(
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  type T = target Symtab.table * string list;
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  val empty = (Symtab.empty, []);
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  val copy = I;
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  val extend = I;
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  fun merge _ ((target1, exc1) : T, (target2, exc2)) =
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    (Symtab.join (merge_target true) (target1, target2), Library.merge (op =) (exc1, exc2));
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);
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fun the_serializer (Target { serializer, ... }) = serializer;
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fun the_reserved (Target { reserved, ... }) = reserved;
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fun the_includes (Target { includes, ... }) = includes;
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fun the_name_syntax (Target { name_syntax_table = NameSyntaxTable x, ... }) = x;
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fun the_module_alias (Target { module_alias , ... }) = module_alias;
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val abort_allowed = snd o CodeTargetData.get;
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fun assert_target thy target =
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  case Symtab.lookup (fst (CodeTargetData.get thy)) target
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   of SOME data => target
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    | NONE => error ("Unknown code target language: " ^ quote target);
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fun put_target (target, seri) thy =
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  let
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    val lookup_target = Symtab.lookup (fst (CodeTargetData.get thy));
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    val _ = case seri
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     of Extends (super, _) => if is_some (lookup_target super) then ()
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          else error ("Unknown code target language: " ^ quote super)
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      | _ => ();
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    val overwriting = case (Option.map the_serializer o lookup_target) target
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     of NONE => false
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      | SOME (Extends _) => true
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      | SOME (Serializer _) => (case seri
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         of Extends _ => error ("Will not overwrite existing target " ^ quote target)
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          | _ => true);
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    val _ = if overwriting
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      then warning ("Overwriting existing target " ^ quote target)
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      else (); 
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  in
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    thy
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    |> (CodeTargetData.map o apfst oo Symtab.map_default)
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          (target, mk_target ((serial (), seri), (([], Symtab.empty),
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            (mk_name_syntax_table ((Symtab.empty, StringPairTab.empty), (Symtab.empty, Symtab.empty)),
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              Symtab.empty))))
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          ((map_target o apfst o apsnd o K) seri)
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  end;
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fun add_target (target, seri) = put_target (target, Serializer seri);
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fun extend_target (target, (super, modify)) =
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  put_target (target, Extends (super, modify));
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fun map_target_data target f thy =
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  let
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    val _ = assert_target thy target;
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  in
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    thy
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    |> (CodeTargetData.map o apfst o Symtab.map_entry target o map_target) f
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  end;
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fun map_reserved target =
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  map_target_data target o apsnd o apfst o apfst;
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fun map_includes target =
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  map_target_data target o apsnd o apfst o apsnd;
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fun map_name_syntax target =
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  map_target_data target o apsnd o apsnd o apfst o map_name_syntax_table;
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fun map_module_alias target =
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  map_target_data target o apsnd o apsnd o apsnd;
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(** serializer configuration **)
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(* data access *)
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local
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fun cert_class thy class =
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  let
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    val _ = AxClass.get_info thy class;
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  in class end;
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fun read_class thy = cert_class thy o Sign.intern_class thy;
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fun cert_tyco thy tyco =
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  let
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    val _ = if Sign.declared_tyname thy tyco then ()
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      else error ("No such type constructor: " ^ quote tyco);
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  in tyco end;
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fun read_tyco thy = cert_tyco thy o Sign.intern_type thy;
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fun gen_add_syntax_class prep_class prep_const target raw_class raw_syn thy =
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  let
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    val class = prep_class thy raw_class;
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    fun mk_classparam c = case AxClass.class_of_param thy c
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     of SOME class' => if class = class' then c
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          else error ("Not a class operation for class " ^ quote class ^ ": " ^ quote c)
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      | NONE => error ("Not a class operation: " ^ quote c);
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    fun mk_syntax_params raw_params = AList.lookup (op =)
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      ((map o apfst) (mk_classparam o prep_const thy) raw_params);
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  in case raw_syn
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   of SOME (syntax, raw_params) =>
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      thy
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      |> (map_name_syntax target o apfst o apfst)
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           (Symtab.update (class, (syntax, mk_syntax_params raw_params)))
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    | NONE =>
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      thy
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      |> (map_name_syntax target o apfst o apfst)
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           (Symtab.delete_safe class)
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  end;
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fun gen_add_syntax_inst prep_class prep_tyco target (raw_tyco, raw_class) add_del thy =
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  let
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    val inst = (prep_class thy raw_class, prep_tyco thy raw_tyco);
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  in if add_del then
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    thy
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    |> (map_name_syntax target o apfst o apsnd)
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        (StringPairTab.update (inst, ()))
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  else
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    thy
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    |> (map_name_syntax target o apfst o apsnd)
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        (StringPairTab.delete_safe inst)
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  end;
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fun gen_add_syntax_tyco prep_tyco target raw_tyco raw_syn thy =
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  let
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    val tyco = prep_tyco thy raw_tyco;
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    fun check_args (syntax as (n, _)) = if n <> Sign.arity_number thy tyco
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      then error ("Number of arguments mismatch in syntax for type constructor " ^ quote tyco)
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      else syntax
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  in case raw_syn
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   of SOME syntax =>
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      thy
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      |> (map_name_syntax target o apsnd o apfst)
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           (Symtab.update (tyco, check_args syntax))
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   | NONE =>
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      thy
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      |> (map_name_syntax target o apsnd o apfst)
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           (Symtab.delete_safe tyco)
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  end;
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fun gen_add_syntax_const prep_const target raw_c raw_syn thy =
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  let
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    val c = prep_const thy raw_c;
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    fun check_args (syntax as (n, _)) = if n > Code_Unit.no_args thy c
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      then error ("Too many arguments in syntax for constant " ^ quote c)
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      else syntax;
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  in case raw_syn
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   of SOME syntax =>
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      thy
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      |> (map_name_syntax target o apsnd o apsnd)
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           (Symtab.update (c, check_args syntax))
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   | NONE =>
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      thy
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      |> (map_name_syntax target o apsnd o apsnd)
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           (Symtab.delete_safe c)
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  end;
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fun add_reserved target =
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  let
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    fun add sym syms = if member (op =) syms sym
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      then error ("Reserved symbol " ^ quote sym ^ " already declared")
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      else insert (op =) sym syms
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  in map_reserved target o add end;
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fun add_include target =
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  let
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    fun add (name, SOME content) incls =
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          let
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            val _ = if Symtab.defined incls name
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              then warning ("Overwriting existing include " ^ name)
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              else ();
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          in Symtab.update (name, str content) incls end
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      | add (name, NONE) incls =
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          Symtab.delete name incls;
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  in map_includes target o add end;
haftmann@24219
   330
haftmann@27103
   331
fun add_module_alias target =
haftmann@28054
   332
  map_module_alias target o Symtab.update o apsnd Code_Name.check_modulename;
haftmann@24219
   333
haftmann@28663
   334
fun gen_allow_abort prep_const raw_c thy =
haftmann@24841
   335
  let
haftmann@28663
   336
    val c = prep_const thy raw_c;
haftmann@28663
   337
  in thy |> (CodeTargetData.map o apsnd) (insert (op =) c) end;
haftmann@24841
   338
haftmann@24219
   339
fun zip_list (x::xs) f g =
haftmann@24219
   340
  f
haftmann@24219
   341
  #-> (fn y =>
haftmann@24219
   342
    fold_map (fn x => g |-- f >> pair x) xs
haftmann@24219
   343
    #-> (fn xys => pair ((x, y) :: xys)));
haftmann@24219
   344
haftmann@27000
   345
haftmann@27103
   346
(* concrete syntax *)
haftmann@27000
   347
haftmann@24219
   348
structure P = OuterParse
haftmann@24219
   349
and K = OuterKeyword
haftmann@24219
   350
haftmann@24219
   351
fun parse_multi_syntax parse_thing parse_syntax =
haftmann@24219
   352
  P.and_list1 parse_thing
haftmann@24219
   353
  #-> (fn things => Scan.repeat1 (P.$$$ "(" |-- P.name --
haftmann@24219
   354
        (zip_list things parse_syntax (P.$$$ "and")) --| P.$$$ ")"));
haftmann@24219
   355
haftmann@24219
   356
in
haftmann@24219
   357
haftmann@24219
   358
val add_syntax_class = gen_add_syntax_class cert_class (K I);
haftmann@24219
   359
val add_syntax_inst = gen_add_syntax_inst cert_class cert_tyco;
haftmann@24219
   360
val add_syntax_tyco = gen_add_syntax_tyco cert_tyco;
haftmann@24219
   361
val add_syntax_const = gen_add_syntax_const (K I);
haftmann@27103
   362
val allow_abort = gen_allow_abort (K I);
haftmann@28054
   363
val add_reserved = add_reserved;
haftmann@24219
   364
haftmann@28054
   365
val add_syntax_class_cmd = gen_add_syntax_class read_class Code_Unit.read_const;
haftmann@24219
   366
val add_syntax_inst_cmd = gen_add_syntax_inst read_class read_tyco;
haftmann@24219
   367
val add_syntax_tyco_cmd = gen_add_syntax_tyco read_tyco;
haftmann@28054
   368
val add_syntax_const_cmd = gen_add_syntax_const Code_Unit.read_const;
haftmann@28054
   369
val allow_abort_cmd = gen_allow_abort Code_Unit.read_const;
haftmann@24219
   370
haftmann@28064
   371
fun the_literals thy =
haftmann@28064
   372
  let
haftmann@28064
   373
    val (targets, _) = CodeTargetData.get thy;
haftmann@28064
   374
    fun literals target = case Symtab.lookup targets target
haftmann@28064
   375
     of SOME data => (case the_serializer data
haftmann@28064
   376
         of Serializer (_, literals) => literals
haftmann@28064
   377
          | Extends (super, _) => literals super)
haftmann@28064
   378
      | NONE => error ("Unknown code target language: " ^ quote target);
haftmann@28064
   379
  in literals end;
haftmann@28064
   380
wenzelm@24867
   381
haftmann@28054
   382
(** serializer usage **)
haftmann@28054
   383
haftmann@28054
   384
(* montage *)
haftmann@28054
   385
haftmann@28663
   386
local
haftmann@28663
   387
haftmann@28663
   388
fun labelled_name thy program name = case Graph.get_node program name
haftmann@28663
   389
 of Code_Thingol.Fun (c, _) => quote (Code_Unit.string_of_const thy c)
haftmann@28663
   390
  | Code_Thingol.Datatype (tyco, _) => "type " ^ quote (Sign.extern_type thy tyco)
haftmann@28663
   391
  | Code_Thingol.Datatypecons (c, _) => quote (Code_Unit.string_of_const thy c)
haftmann@28663
   392
  | Code_Thingol.Class (class, _) => "class " ^ quote (Sign.extern_class thy class)
haftmann@28663
   393
  | Code_Thingol.Classrel (sub, super) => let
haftmann@28663
   394
        val Code_Thingol.Class (sub, _) = Graph.get_node program sub
haftmann@28663
   395
        val Code_Thingol.Class (super, _) = Graph.get_node program super
haftmann@28663
   396
      in quote (Sign.extern_class thy sub ^ " < " ^ Sign.extern_class thy super) end
haftmann@28663
   397
  | Code_Thingol.Classparam (c, _) => quote (Code_Unit.string_of_const thy c)
haftmann@28663
   398
  | Code_Thingol.Classinst ((class, (tyco, _)), _) => let
haftmann@28663
   399
        val Code_Thingol.Class (class, _) = Graph.get_node program class
haftmann@28663
   400
        val Code_Thingol.Datatype (tyco, _) = Graph.get_node program tyco
haftmann@28663
   401
      in quote (Sign.extern_type thy tyco ^ " :: " ^ Sign.extern_class thy class) end
haftmann@28663
   402
haftmann@28663
   403
fun invoke_serializer thy abortable serializer reserved includes 
haftmann@28663
   404
    module_alias class instance tyco const module args naming program2 names1 =
haftmann@28054
   405
  let
haftmann@28663
   406
    fun distill_names lookup_name src_tab = Symtab.empty
haftmann@28663
   407
      |> fold_map (fn thing_identifier => fn tab => case lookup_name naming thing_identifier
haftmann@28663
   408
           of SOME name => (SOME name, Symtab.update_new (name, the (Symtab.lookup src_tab thing_identifier)) tab)
haftmann@28663
   409
            | NONE => (NONE, tab)) (Symtab.keys src_tab)
haftmann@28663
   410
      |>> map_filter I;
haftmann@28663
   411
    fun lookup_classparam_rev c' = case try (Graph.get_node program2) c'
haftmann@28663
   412
     of SOME (Code_Thingol.Classparam (c, _)) => SOME c
haftmann@28663
   413
      | NONE => NONE;
haftmann@28663
   414
    fun lookup_tyco_fun naming "fun" = SOME "fun"
haftmann@28663
   415
      | lookup_tyco_fun naming tyco = Code_Thingol.lookup_tyco naming tyco;
haftmann@28663
   416
    val (names_class, class') = distill_names Code_Thingol.lookup_class class;
haftmann@28663
   417
    val class'' = class'
haftmann@28663
   418
      |> (Symtab.map o apsnd) (fn class_params => fn c' =>
haftmann@28663
   419
          case lookup_classparam_rev c'
haftmann@28663
   420
           of SOME c => class_params c
haftmann@28663
   421
            | NONE => NONE)
haftmann@28663
   422
    val names_inst = map_filter (Code_Thingol.lookup_instance naming)
haftmann@28663
   423
      (StringPairTab.keys instance);
haftmann@28663
   424
    val (names_tyco, tyco') = distill_names lookup_tyco_fun tyco;
haftmann@28663
   425
    val (names_const, const') = distill_names Code_Thingol.lookup_const const;
haftmann@28663
   426
    val names_hidden = names_class @ names_inst @ names_tyco @ names_const;
haftmann@28663
   427
    val names2 = subtract (op =) names_hidden names1;
haftmann@28663
   428
    val program3 = Graph.subgraph (not o member (op =) names_hidden) program2;
haftmann@28663
   429
    val names_all = Graph.all_succs program2 names2;
haftmann@28663
   430
    val program4 = Graph.subgraph (member (op =) names_all) program3;
haftmann@28054
   431
    val empty_funs = filter_out (member (op =) abortable)
haftmann@28054
   432
      (Code_Thingol.empty_funs program3);
haftmann@28054
   433
    val _ = if null empty_funs then () else error ("No defining equations for "
haftmann@28663
   434
      ^ commas (map (Sign.extern_const thy) empty_funs));
haftmann@28054
   435
  in
haftmann@28663
   436
    serializer module args (labelled_name thy program2) reserved includes
haftmann@28663
   437
      (Symtab.lookup module_alias) (Symtab.lookup class'')
haftmann@28663
   438
      (Symtab.lookup tyco') (Symtab.lookup const')
haftmann@28663
   439
      naming program4 names2
haftmann@28054
   440
  end;
haftmann@28054
   441
haftmann@28663
   442
fun mount_serializer thy alt_serializer target module args naming program =
haftmann@28054
   443
  let
haftmann@28054
   444
    val (targets, abortable) = CodeTargetData.get thy;
haftmann@28054
   445
    fun collapse_hierarchy target =
haftmann@28054
   446
      let
haftmann@28054
   447
        val data = case Symtab.lookup targets target
haftmann@28054
   448
         of SOME data => data
haftmann@28054
   449
          | NONE => error ("Unknown code target language: " ^ quote target);
haftmann@28054
   450
      in case the_serializer data
haftmann@28054
   451
       of Serializer _ => (I, data)
haftmann@28054
   452
        | Extends (super, modify) => let
haftmann@28054
   453
            val (modify', data') = collapse_hierarchy super
haftmann@28663
   454
          in (modify' #> modify naming, merge_target false target (data', data)) end
haftmann@28054
   455
      end;
haftmann@28054
   456
    val (modify, data) = collapse_hierarchy target;
haftmann@28064
   457
    val (serializer, _) = the_default (case the_serializer data
haftmann@28054
   458
     of Serializer seri => seri) alt_serializer;
haftmann@28054
   459
    val reserved = the_reserved data;
haftmann@28054
   460
    val includes = Symtab.dest (the_includes data);
haftmann@28054
   461
    val module_alias = the_module_alias data;
haftmann@28663
   462
    val { class, instance, tyco, const } = the_name_syntax data;
haftmann@28054
   463
  in
haftmann@28663
   464
    invoke_serializer thy abortable serializer reserved
haftmann@28663
   465
      includes module_alias class instance tyco const module args naming (modify program)
haftmann@28054
   466
  end;
haftmann@28054
   467
haftmann@28663
   468
in
haftmann@28663
   469
haftmann@28054
   470
fun serialize thy = mount_serializer thy NONE;
haftmann@28054
   471
haftmann@28663
   472
fun serialize_custom thy (target_name, seri) naming program cs =
haftmann@28663
   473
  mount_serializer thy (SOME seri) target_name NONE [] naming program cs (String [])
haftmann@28054
   474
  |> the;
haftmann@28054
   475
haftmann@28663
   476
end; (* local *)
haftmann@28663
   477
haftmann@28054
   478
fun parse_args f args =
haftmann@28054
   479
  case Scan.read OuterLex.stopper f args
haftmann@28054
   480
   of SOME x => x
haftmann@28054
   481
    | NONE => error "Bad serializer arguments";
haftmann@28054
   482
haftmann@28054
   483
haftmann@28054
   484
(* code presentation *)
haftmann@28054
   485
haftmann@28663
   486
fun code_of thy target module_name cs names_stmt =
haftmann@28054
   487
  let
haftmann@28663
   488
    val (names_cs, (naming, program)) = Code_Thingol.consts_program thy cs;
haftmann@28054
   489
  in
haftmann@28663
   490
    string names_stmt (serialize thy target (SOME module_name) []
haftmann@28663
   491
      naming program names_cs)
haftmann@28054
   492
  end;
haftmann@28054
   493
haftmann@28054
   494
haftmann@28054
   495
(* code generation *)
haftmann@28054
   496
haftmann@28663
   497
fun transitivly_non_empty_funs thy naming program =
haftmann@28663
   498
  let
haftmann@28663
   499
    val cs = subtract (op =) (abort_allowed thy) (Code_Thingol.empty_funs program);
haftmann@28663
   500
    val names = map_filter (Code_Thingol.lookup_const naming) cs;
haftmann@28663
   501
  in subtract (op =) (Graph.all_preds program names) (Graph.keys program) end;
haftmann@28663
   502
haftmann@28054
   503
fun read_const_exprs thy cs =
haftmann@28054
   504
  let
haftmann@28054
   505
    val (cs1, cs2) = Code_Name.read_const_exprs thy cs;
haftmann@28663
   506
    val (names3, (naming, program)) = Code_Thingol.consts_program thy cs2;
haftmann@28663
   507
    val names4 = transitivly_non_empty_funs thy naming program;
haftmann@28054
   508
    val cs5 = map_filter
haftmann@28663
   509
      (fn (c, name) => if member (op =) names4 name then SOME c else NONE) (cs2 ~~ names3);
haftmann@28054
   510
  in fold (insert (op =)) cs5 cs1 end;
haftmann@28054
   511
haftmann@28054
   512
fun cached_program thy = 
haftmann@28054
   513
  let
haftmann@28663
   514
    val (naming, program) = Code_Thingol.cached_program thy;
haftmann@28663
   515
  in (transitivly_non_empty_funs thy naming program, (naming, program)) end
haftmann@28054
   516
haftmann@28054
   517
fun export_code thy cs seris =
haftmann@28054
   518
  let
haftmann@28663
   519
    val (cs', (naming, program)) = if null cs then cached_program thy
haftmann@28054
   520
      else Code_Thingol.consts_program thy cs;
haftmann@28054
   521
    fun mk_seri_dest dest = case dest
haftmann@28054
   522
     of NONE => compile
haftmann@28054
   523
      | SOME "-" => export
haftmann@28054
   524
      | SOME f => file (Path.explode f)
haftmann@28054
   525
    val _ = map (fn (((target, module), dest), args) =>
haftmann@28663
   526
      (mk_seri_dest dest (serialize thy target module args naming program cs'))) seris;
haftmann@28054
   527
  in () end;
haftmann@28054
   528
haftmann@28054
   529
fun export_code_cmd raw_cs seris thy = export_code thy (read_const_exprs thy raw_cs) seris;
haftmann@28054
   530
haftmann@27103
   531
haftmann@27304
   532
(** Isar setup **)
haftmann@27103
   533
haftmann@27103
   534
val (inK, module_nameK, fileK) = ("in", "module_name", "file");
haftmann@27103
   535
haftmann@27103
   536
fun code_exprP cmd =
wenzelm@27757
   537
  (Scan.repeat P.term_group
haftmann@27103
   538
  -- Scan.repeat (P.$$$ inK |-- P.name
haftmann@27103
   539
     -- Scan.option (P.$$$ module_nameK |-- P.name)
haftmann@27103
   540
     -- Scan.option (P.$$$ fileK |-- P.name)
wenzelm@27809
   541
     -- Scan.optional (P.$$$ "(" |-- Args.parse --| P.$$$ ")") []
haftmann@27103
   542
  ) >> (fn (raw_cs, seris) => cmd raw_cs seris));
haftmann@27103
   543
haftmann@28054
   544
val _ = List.app OuterKeyword.keyword [inK, module_nameK, fileK];
wenzelm@24867
   545
wenzelm@24867
   546
val _ =
haftmann@24992
   547
  OuterSyntax.command "code_class" "define code syntax for class" K.thy_decl (
haftmann@24219
   548
    parse_multi_syntax P.xname
haftmann@24219
   549
      (Scan.option (P.string -- Scan.optional (P.$$$ "where" |-- Scan.repeat1
wenzelm@27757
   550
        (P.term_group --| (P.$$$ "\<equiv>" || P.$$$ "==") -- P.string)) []))
haftmann@24219
   551
    >> (Toplevel.theory oo fold) (fn (target, syns) =>
haftmann@24219
   552
          fold (fn (raw_class, syn) => add_syntax_class_cmd target raw_class syn) syns)
haftmann@24219
   553
  );
haftmann@24219
   554
wenzelm@24867
   555
val _ =
haftmann@24992
   556
  OuterSyntax.command "code_instance" "define code syntax for instance" K.thy_decl (
haftmann@24219
   557
    parse_multi_syntax (P.xname --| P.$$$ "::" -- P.xname)
haftmann@24219
   558
      ((P.minus >> K true) || Scan.succeed false)
haftmann@24219
   559
    >> (Toplevel.theory oo fold) (fn (target, syns) =>
haftmann@24219
   560
          fold (fn (raw_inst, add_del) => add_syntax_inst_cmd target raw_inst add_del) syns)
haftmann@24219
   561
  );
haftmann@24219
   562
wenzelm@24867
   563
val _ =
haftmann@24992
   564
  OuterSyntax.command "code_type" "define code syntax for type constructor" K.thy_decl (
haftmann@24219
   565
    parse_multi_syntax P.xname (parse_syntax I)
haftmann@24219
   566
    >> (Toplevel.theory oo fold) (fn (target, syns) =>
haftmann@24219
   567
          fold (fn (raw_tyco, syn) => add_syntax_tyco_cmd target raw_tyco syn) syns)
haftmann@24219
   568
  );
haftmann@24219
   569
wenzelm@24867
   570
val _ =
haftmann@24992
   571
  OuterSyntax.command "code_const" "define code syntax for constant" K.thy_decl (
wenzelm@27757
   572
    parse_multi_syntax P.term_group (parse_syntax fst)
haftmann@24219
   573
    >> (Toplevel.theory oo fold) (fn (target, syns) =>
haftmann@28054
   574
      fold (fn (raw_const, syn) => add_syntax_const_cmd target raw_const
haftmann@28054
   575
        (Code_Printer.simple_const_syntax syn)) syns)
haftmann@24219
   576
  );
haftmann@24219
   577
wenzelm@24867
   578
val _ =
haftmann@24992
   579
  OuterSyntax.command "code_reserved" "declare words as reserved for target language" K.thy_decl (
haftmann@24219
   580
    P.name -- Scan.repeat1 P.name
haftmann@24219
   581
    >> (fn (target, reserveds) => (Toplevel.theory o fold (add_reserved target)) reserveds)
haftmann@24841
   582
  );
haftmann@24219
   583
wenzelm@24867
   584
val _ =
haftmann@24992
   585
  OuterSyntax.command "code_include" "declare piece of code to be included in generated code" K.thy_decl (
haftmann@24992
   586
    P.name -- P.name -- (P.text >> (fn "-" => NONE | s => SOME s))
haftmann@24992
   587
    >> (fn ((target, name), content) => (Toplevel.theory o add_include target)
haftmann@24992
   588
      (name, content))
haftmann@24992
   589
  );
haftmann@24992
   590
haftmann@24992
   591
val _ =
haftmann@24992
   592
  OuterSyntax.command "code_modulename" "alias module to other name" K.thy_decl (
haftmann@24219
   593
    P.name -- Scan.repeat1 (P.name -- P.name)
haftmann@27103
   594
    >> (fn (target, modlnames) => (Toplevel.theory o fold (add_module_alias target)) modlnames)
haftmann@27103
   595
  );
haftmann@27103
   596
haftmann@27103
   597
val _ =
haftmann@27103
   598
  OuterSyntax.command "code_abort" "permit constant to be implemented as program abort" K.thy_decl (
wenzelm@27757
   599
    Scan.repeat1 P.term_group >> (Toplevel.theory o fold allow_abort_cmd)
haftmann@24841
   600
  );
haftmann@24219
   601
wenzelm@24867
   602
val _ =
haftmann@27103
   603
  OuterSyntax.command "export_code" "generate executable code for constants"
haftmann@27103
   604
    K.diag (P.!!! (code_exprP export_code_cmd) >> (fn f => Toplevel.keep (f o Toplevel.theory_of)));
haftmann@27103
   605
haftmann@24219
   606
end; (*local*)
haftmann@24219
   607
haftmann@24219
   608
end; (*struct*)