src/Tools/Code/code_target.ML
author wenzelm
Sat Apr 16 15:25:25 2011 +0200 (2011-04-16)
changeset 42359 6ca5407863ed
parent 41940 a3b68a7a0e15
child 42361 23f352990944
permissions -rw-r--r--
prefer local name spaces;
tuned signatures;
tuned;
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(*  Title:      Tools/Code/code_target.ML
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    Author:     Florian Haftmann, TU Muenchen
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Generic infrastructure for target language data.
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*)
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signature CODE_TARGET =
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sig
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  val cert_tyco: theory -> string -> string
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  val read_tyco: theory -> string -> string
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  val read_const_exprs: theory -> string list -> string list
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  val export_code_for: theory -> Path.T option -> string -> int option -> string -> Token.T list
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    -> Code_Thingol.naming -> Code_Thingol.program -> string list -> unit
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  val produce_code_for: theory -> string -> int option -> string -> Token.T list
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    -> Code_Thingol.naming -> Code_Thingol.program -> string list -> string * string option list
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  val present_code_for: theory -> string -> int option -> string -> Token.T list
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    -> Code_Thingol.naming -> Code_Thingol.program -> string list * string list -> string
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  val check_code_for: theory -> string -> bool -> Token.T list
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    -> Code_Thingol.naming -> Code_Thingol.program -> string list -> unit
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  val export_code: theory -> string list
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    -> (((string * string) * Path.T option) * Token.T list) list -> unit
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  val produce_code: theory -> string list
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    -> string -> int option -> string -> Token.T list -> string * string option list
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  val present_code: theory -> string list -> (Code_Thingol.naming -> string list)
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    -> string -> int option -> string -> Token.T list -> string
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  val check_code: theory -> string list
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    -> ((string * bool) * Token.T list) list -> unit
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  val evaluator: theory -> string -> Code_Thingol.naming -> Code_Thingol.program
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    -> string list -> ((string * class list) list * Code_Thingol.itype) * Code_Thingol.iterm
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    -> string * string
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  type serializer
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  type literals = Code_Printer.literals
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  val add_target: string * { serializer: serializer, literals: literals,
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    check: { env_var: string, make_destination: Path.T -> Path.T, make_command: string -> string } }
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    -> 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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  val the_literals: theory -> string -> literals
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  type serialization
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  val parse_args: 'a parser -> Token.T list -> 'a
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  val serialization: (int -> Path.T option -> 'a -> unit)
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    -> (string list -> int -> 'a -> string * (string -> string option))
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    -> 'a -> serialization
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  val set_default_code_width: int -> theory -> theory
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  val allow_abort: string -> theory -> theory
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  type tyco_syntax = Code_Printer.tyco_syntax
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  type const_syntax = Code_Printer.const_syntax
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  val add_class_syntax: string -> class -> string option -> theory -> theory
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  val add_instance_syntax: string -> class * string -> unit option -> theory -> theory
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  val add_tyco_syntax: string -> string -> tyco_syntax option -> theory -> theory
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  val add_const_syntax: string -> string -> const_syntax option -> theory -> theory
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  val add_reserved: string -> string -> theory -> theory
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  val add_include: string -> string * (string * string list) option -> theory -> theory
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  val codegen_tool: string (*theory name*) -> string (*export_code expr*) -> unit
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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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type literals = Code_Printer.literals;
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type tyco_syntax = Code_Printer.tyco_syntax;
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type const_syntax = Code_Printer.const_syntax;
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(** abstract nonsense **)
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datatype destination = Export of Path.T option | Produce | Present of string list;
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type serialization = int -> destination -> (string * (string -> string option)) option;
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fun serialization output _ content width (Export some_path) =
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      (output width some_path content; NONE)
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  | serialization _ string content width Produce =
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      string [] width content |> SOME
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  | serialization _ string content width (Present stmt_names) =
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     string stmt_names width content
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     |> apfst (Pretty.output (SOME width) o Pretty.str)
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     |> SOME;
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fun export some_path f = (f (Export some_path); ());
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fun produce f = the (f Produce);
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fun present stmt_names f = fst (the (f (Present stmt_names)));
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(** theory data **)
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datatype symbol_syntax_data = Symbol_Syntax_Data of {
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  class: string Symtab.table,
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  instance: unit Symreltab.table,
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  tyco: Code_Printer.tyco_syntax Symtab.table,
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  const: Code_Printer.const_syntax Symtab.table
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};
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fun make_symbol_syntax_data ((class, instance), (tyco, const)) =
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  Symbol_Syntax_Data { class = class, instance = instance, tyco = tyco, const = const };
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fun map_symbol_syntax_data f (Symbol_Syntax_Data { class, instance, tyco, const }) =
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  make_symbol_syntax_data (f ((class, instance), (tyco, const)));
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fun merge_symbol_syntax_data
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  (Symbol_Syntax_Data { class = class1, instance = instance1, tyco = tyco1, const = const1 },
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    Symbol_Syntax_Data { class = class2, instance = instance2, tyco = tyco2, const = const2 }) =
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  make_symbol_syntax_data (
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    (Symtab.join (K snd) (class1, class2),
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       Symreltab.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 = Token.T list
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  -> {
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    labelled_name: string -> string,
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    reserved_syms: string list,
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    includes: (string * Pretty.T) list,
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    module_alias: string -> string option,
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    class_syntax: string -> string option,
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    tyco_syntax: string -> Code_Printer.tyco_syntax option,
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    const_syntax: string -> Code_Printer.activated_const_syntax option }
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  -> Code_Thingol.program
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  -> serialization;
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datatype description = Fundamental of { serializer: serializer,
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      literals: literals,
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      check: { env_var: string, make_destination: Path.T -> Path.T,
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        make_command: string -> string } }
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  | Extension of string *
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      (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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  description: description,
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  reserved: string list,
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  includes: (Pretty.T * string list) Symtab.table,
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  module_alias: string Symtab.table,
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  symbol_syntax: symbol_syntax_data
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};
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fun make_target ((serial, description), ((reserved, includes), (module_alias, symbol_syntax))) =
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  Target { serial = serial, description = description, reserved = reserved, 
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    includes = includes, module_alias = module_alias, symbol_syntax = symbol_syntax };
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fun map_target f ( Target { serial, description, reserved, includes, module_alias, symbol_syntax } ) =
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  make_target (f ((serial, description), ((reserved, includes), (module_alias, symbol_syntax))));
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fun merge_target strict target (Target { serial = serial1, description = description,
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  reserved = reserved1, includes = includes1,
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  module_alias = module_alias1, symbol_syntax = symbol_syntax1 },
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    Target { serial = serial2, description = _,
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      reserved = reserved2, includes = includes2,
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      module_alias = module_alias2, symbol_syntax = symbol_syntax2 }) =
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  if serial1 = serial2 orelse not strict then
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    make_target ((serial1, description),
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      ((merge (op =) (reserved1, reserved2), Symtab.join (K snd) (includes1, includes2)),
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        (Symtab.join (K snd) (module_alias1, module_alias2),
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          merge_symbol_syntax_data (symbol_syntax1, symbol_syntax2))
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    ))
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  else
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    error ("Incompatible targets: " ^ quote target);
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fun the_description (Target { description, ... }) = description;
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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_module_alias (Target { module_alias , ... }) = module_alias;
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fun the_symbol_syntax (Target { symbol_syntax = Symbol_Syntax_Data x, ... }) = x;
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structure Targets = Theory_Data
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(
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  type T = (target Symtab.table * string list) * int;
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  val empty = ((Symtab.empty, []), 80);
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  val extend = I;
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  fun merge (((target1, exc1), width1), ((target2, exc2), width2)) : T =
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    ((Symtab.join (merge_target true) (target1, target2),
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      Library.merge (op =) (exc1, exc2)), Int.max (width1, width2));
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);
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val abort_allowed = snd o fst o Targets.get;
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fun assert_target thy target = if Symtab.defined ((fst o fst) (Targets.get thy)) target
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  then target
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  else 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 o fst) (Targets.get thy));
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    val _ = case seri
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     of Extension (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_description o lookup_target) target
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     of NONE => false
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      | SOME (Extension _) => true
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      | SOME (Fundamental _) => (case seri
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         of Extension _ => 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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    |> (Targets.map o apfst o apfst o Symtab.update)
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          (target, make_target ((serial (), seri), (([], Symtab.empty),
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            (Symtab.empty, make_symbol_syntax_data ((Symtab.empty, Symreltab.empty),
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              (Symtab.empty, Symtab.empty))))))
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  end;
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fun add_target (target, seri) = put_target (target, Fundamental seri);
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fun extend_target (target, (super, modify)) =
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  put_target (target, Extension (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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    |> (Targets.map o apfst 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_module_alias target =
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  map_target_data target o apsnd o apsnd o apfst;
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fun map_symbol_syntax target =
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  map_target_data target o apsnd o apsnd o apsnd o map_symbol_syntax_data;
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fun set_default_code_width k = (Targets.map o apsnd) (K k);
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(** serializer usage **)
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(* montage *)
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fun the_fundamental thy =
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  let
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    val ((targets, _), _) = Targets.get thy;
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    fun fundamental target = case Symtab.lookup targets target
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     of SOME data => (case the_description data
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         of Fundamental data => data
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          | Extension (super, _) => fundamental super)
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      | NONE => error ("Unknown code target language: " ^ quote target);
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  in fundamental end;
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fun the_literals thy = #literals o the_fundamental thy;
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fun collapse_hierarchy thy =
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  let
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    val ((targets, _), _) = Targets.get thy;
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    fun collapse target = 
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      let
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        val data = case Symtab.lookup targets target
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         of SOME data => data
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          | NONE => error ("Unknown code target language: " ^ quote target);
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      in case the_description data
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       of Fundamental _ => (K I, data)
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        | Extension (super, modify) => let
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            val (modify', data') = collapse super
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          in (fn naming => modify' naming #> modify naming, merge_target false target (data', data)) end
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      end;
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  in collapse end;
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local
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fun activate_target thy target =
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  let
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    val ((targets, abortable), default_width) = Targets.get thy;
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    val (modify, data) = collapse_hierarchy thy target;
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  in (default_width, abortable, data, modify) end;
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fun activate_syntax lookup_name src_tab = Symtab.empty
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  |> fold_map (fn thing_identifier => fn tab => case lookup_name thing_identifier
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       of SOME name => (SOME name,
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            Symtab.update_new (name, the (Symtab.lookup src_tab thing_identifier)) tab)
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        | NONE => (NONE, tab)) (Symtab.keys src_tab)
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  |>> map_filter I;
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fun activate_const_syntax thy literals src_tab naming = (Symtab.empty, naming)
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  |> fold_map (fn c => fn (tab, naming) =>
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      case Code_Thingol.lookup_const naming c
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       of SOME name => let
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              val (syn, naming') = Code_Printer.activate_const_syntax thy
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                literals c (the (Symtab.lookup src_tab c)) naming
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            in (SOME name, (Symtab.update_new (name, syn) tab, naming')) end
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        | NONE => (NONE, (tab, naming))) (Symtab.keys src_tab)
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  |>> map_filter I;
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fun activate_symbol_syntax thy literals naming
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    class_syntax instance_syntax tyco_syntax const_syntax =
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  let
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    val (names_class, class_syntax') =
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      activate_syntax (Code_Thingol.lookup_class naming) class_syntax;
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    val names_inst = map_filter (Code_Thingol.lookup_instance naming)
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      (Symreltab.keys instance_syntax);
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    val (names_tyco, tyco_syntax') =
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      activate_syntax (Code_Thingol.lookup_tyco naming) tyco_syntax;
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    val (names_const, (const_syntax', _)) =
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      activate_const_syntax thy literals const_syntax naming;
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  in
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    (names_class @ names_inst @ names_tyco @ names_const,
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      (class_syntax', tyco_syntax', const_syntax'))
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  end;
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fun project_program thy abortable names_hidden names1 program2 =
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  let
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    val ctxt = ProofContext.init_global thy;
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    val names2 = subtract (op =) names_hidden names1;
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    val program3 = Graph.subgraph (not o member (op =) names_hidden) program2;
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    val names4 = Graph.all_succs program3 names2;
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    val empty_funs = filter_out (member (op =) abortable)
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      (Code_Thingol.empty_funs program3);
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    val _ =
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      if null empty_funs then ()
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      else error ("No code equations for " ^
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        commas (map (ProofContext.extern_const ctxt) empty_funs));
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   320
    val program4 = Graph.subgraph (member (op =) names4) program3;
haftmann@38936
   321
  in (names4, program4) end;
haftmann@38927
   322
haftmann@41342
   323
fun prepare_serializer thy abortable serializer literals reserved all_includes
haftmann@38927
   324
    module_alias proto_class_syntax proto_instance_syntax proto_tyco_syntax proto_const_syntax
haftmann@39058
   325
    module_name args naming proto_program names =
haftmann@38927
   326
  let
haftmann@38927
   327
    val (names_hidden, (class_syntax, tyco_syntax, const_syntax)) =
haftmann@38927
   328
      activate_symbol_syntax thy literals naming
haftmann@38927
   329
        proto_class_syntax proto_instance_syntax proto_tyco_syntax proto_const_syntax;
haftmann@38927
   330
    val (names_all, program) = project_program thy abortable names_hidden names proto_program;
haftmann@39484
   331
    fun select_include (name, (content, cs)) =
haftmann@39484
   332
      if null cs orelse exists (fn c => case Code_Thingol.lookup_const naming c
haftmann@39484
   333
       of SOME name => member (op =) names_all name
haftmann@39484
   334
        | NONE => false) cs
haftmann@39484
   335
      then SOME (name, content) else NONE;
haftmann@39484
   336
    val includes = map_filter select_include (Symtab.dest all_includes);
haftmann@34021
   337
  in
haftmann@41342
   338
    (serializer args {
haftmann@38927
   339
      labelled_name = Code_Thingol.labelled_name thy proto_program,
haftmann@38926
   340
      reserved_syms = reserved,
haftmann@38926
   341
      includes = includes,
haftmann@38933
   342
      module_alias = if module_name = "" then Symtab.lookup module_alias else K (SOME module_name),
haftmann@38927
   343
      class_syntax = Symtab.lookup class_syntax,
haftmann@38927
   344
      tyco_syntax = Symtab.lookup tyco_syntax,
haftmann@41342
   345
      const_syntax = Symtab.lookup const_syntax },
haftmann@41342
   346
      program)
haftmann@34021
   347
  end;
haftmann@34021
   348
haftmann@41342
   349
fun mount_serializer thy target some_width module_name args naming program names =
haftmann@34021
   350
  let
haftmann@39484
   351
    val (default_width, abortable, data, modify) = activate_target thy target;
haftmann@38921
   352
    val serializer = case the_description data
haftmann@38927
   353
     of Fundamental seri => #serializer seri;
haftmann@34021
   354
    val reserved = the_reserved data;
haftmann@38779
   355
    val module_alias = the_module_alias data 
haftmann@38925
   356
    val { class, instance, tyco, const } = the_symbol_syntax data;
haftmann@34021
   357
    val literals = the_literals thy target;
haftmann@41342
   358
    val (prepared_serializer, prepared_program) = prepare_serializer thy
haftmann@41342
   359
      abortable serializer literals reserved (the_includes data) module_alias
haftmann@41342
   360
        class instance tyco const module_name args
haftmann@41342
   361
          naming (modify naming program) names
haftmann@34071
   362
    val width = the_default default_width some_width;
haftmann@41344
   363
  in (fn program => prepared_serializer program width, prepared_program) end;
haftmann@41344
   364
haftmann@41344
   365
fun invoke_serializer thy target some_width module_name args naming program names =
haftmann@41344
   366
  let
haftmann@41344
   367
    val (mounted_serializer, prepared_program) = mount_serializer thy
haftmann@41344
   368
      target some_width module_name args naming program names;
haftmann@41344
   369
  in mounted_serializer prepared_program end;
haftmann@34021
   370
haftmann@38933
   371
fun assert_module_name "" = error ("Empty module name not allowed.")
haftmann@38933
   372
  | assert_module_name module_name = module_name;
haftmann@38933
   373
haftmann@34021
   374
in
haftmann@34021
   375
haftmann@39484
   376
fun export_code_for thy some_path target some_width module_name args =
haftmann@41344
   377
  export some_path ooo invoke_serializer thy target some_width module_name args;
haftmann@38918
   378
haftmann@39484
   379
fun produce_code_for thy target some_width module_name args =
haftmann@39102
   380
  let
haftmann@41344
   381
    val serializer = invoke_serializer thy target some_width (assert_module_name module_name) args;
haftmann@39484
   382
  in fn naming => fn program => fn names =>
haftmann@39661
   383
    produce (serializer naming program names) |> apsnd (fn deresolve => map deresolve names)
haftmann@39484
   384
  end;
haftmann@38929
   385
haftmann@39484
   386
fun present_code_for thy target some_width module_name args =
haftmann@39484
   387
  let
haftmann@41344
   388
    val serializer = invoke_serializer thy target some_width (assert_module_name module_name) args;
haftmann@39484
   389
  in fn naming => fn program => fn (names, selects) =>
haftmann@39661
   390
    present selects (serializer naming program names)
haftmann@39484
   391
  end;
haftmann@38918
   392
haftmann@38918
   393
fun check_code_for thy target strict args naming program names_cs =
haftmann@37824
   394
  let
haftmann@38933
   395
    val module_name = "Code";
haftmann@37824
   396
    val { env_var, make_destination, make_command } =
haftmann@37824
   397
      (#check o the_fundamental thy) target;
wenzelm@41939
   398
    fun ext_check p =
haftmann@37824
   399
      let 
haftmann@37824
   400
        val destination = make_destination p;
haftmann@41344
   401
        val _ = export (SOME destination) (invoke_serializer thy target (SOME 80)
haftmann@39661
   402
          module_name args naming program names_cs);
wenzelm@41940
   403
        val cmd = make_command module_name;
haftmann@37824
   404
      in if bash ("cd " ^ File.shell_path p ^ " && " ^ cmd ^ " 2>&1") <> 0
haftmann@37824
   405
        then error ("Code check failed for " ^ target ^ ": " ^ cmd)
haftmann@37824
   406
        else ()
haftmann@37824
   407
      end;
wenzelm@41940
   408
  in if getenv env_var = ""
haftmann@37825
   409
    then if strict
haftmann@37825
   410
      then error (env_var ^ " not set; cannot check code for " ^ target)
haftmann@37825
   411
      else warning (env_var ^ " not set; skipped checking code for " ^ target)
wenzelm@41939
   412
    else Isabelle_System.with_tmp_dir "Code_Test" ext_check
haftmann@37824
   413
  end;
haftmann@37824
   414
haftmann@41364
   415
fun evaluation mounted_serializer prepared_program consts ((vs, ty), t) =
haftmann@41344
   416
  let
haftmann@41344
   417
    val _ = if Code_Thingol.contains_dict_var t then
haftmann@41344
   418
      error "Term to be evaluated contains free dictionaries" else ();
haftmann@41344
   419
    val v' = Name.variant (map fst vs) "a";
haftmann@41344
   420
    val vs' = (v', []) :: vs;
haftmann@41344
   421
    val ty' = Code_Thingol.fun_tyco `%% [ITyVar v', ty];
haftmann@41344
   422
    val value_name = "Value.value.value"
haftmann@41344
   423
    val program = prepared_program
haftmann@41344
   424
      |> Graph.new_node (value_name,
haftmann@41344
   425
          Code_Thingol.Fun (Term.dummy_patternN, (((vs', ty'), [(([IVar NONE], t), (NONE, true))]), NONE)))
haftmann@41364
   426
      |> fold (curry (perhaps o try o Graph.add_edge) value_name) consts;
haftmann@41344
   427
    val (program_code, deresolve) = produce (mounted_serializer program);
haftmann@41344
   428
    val value_name' = the (deresolve value_name);
haftmann@41344
   429
  in (program_code, value_name') end;
haftmann@41344
   430
haftmann@41364
   431
fun evaluator thy target naming program consts =
haftmann@41344
   432
  let
haftmann@41344
   433
    val (mounted_serializer, prepared_program) = mount_serializer thy
haftmann@41364
   434
      target NONE "Code" [] naming program consts;
haftmann@41364
   435
  in evaluation mounted_serializer prepared_program consts end;
haftmann@41344
   436
haftmann@34021
   437
end; (* local *)
haftmann@34021
   438
haftmann@34021
   439
haftmann@34021
   440
(* code generation *)
haftmann@34021
   441
haftmann@34021
   442
fun transitivly_non_empty_funs thy naming program =
haftmann@34021
   443
  let
haftmann@34021
   444
    val cs = subtract (op =) (abort_allowed thy) (Code_Thingol.empty_funs program);
haftmann@34021
   445
    val names = map_filter (Code_Thingol.lookup_const naming) cs;
haftmann@34021
   446
  in subtract (op =) (Graph.all_preds program names) (Graph.keys program) end;
haftmann@34021
   447
haftmann@34021
   448
fun read_const_exprs thy cs =
haftmann@34021
   449
  let
haftmann@34021
   450
    val (cs1, cs2) = Code_Thingol.read_const_exprs thy cs;
haftmann@36271
   451
    val (names2, (naming, program)) = Code_Thingol.consts_program thy true cs2;
haftmann@36271
   452
    val names3 = transitivly_non_empty_funs thy naming program;
haftmann@36271
   453
    val cs3 = map_filter (fn (c, name) =>
haftmann@36271
   454
      if member (op =) names3 name then SOME c else NONE) (cs2 ~~ names2);
haftmann@36271
   455
  in union (op =) cs3 cs1 end;
haftmann@34021
   456
haftmann@38918
   457
fun prep_destination "" = NONE
haftmann@38918
   458
  | prep_destination "-" = NONE
haftmann@38918
   459
  | prep_destination s = SOME (Path.explode s);
haftmann@38918
   460
haftmann@34021
   461
fun export_code thy cs seris =
haftmann@34021
   462
  let
haftmann@37824
   463
    val (names_cs, (naming, program)) = Code_Thingol.consts_program thy false cs;
haftmann@38918
   464
    val _ = map (fn (((target, module_name), some_path), args) =>
haftmann@38918
   465
      export_code_for thy some_path target NONE module_name args naming program names_cs) seris;
haftmann@34021
   466
  in () end;
haftmann@34021
   467
haftmann@38918
   468
fun export_code_cmd raw_cs seris thy = export_code thy (read_const_exprs thy raw_cs)
haftmann@38918
   469
  ((map o apfst o apsnd) prep_destination seris);
haftmann@38918
   470
haftmann@38929
   471
fun produce_code thy cs target some_width some_module_name args =
haftmann@38918
   472
  let
haftmann@38918
   473
    val (names_cs, (naming, program)) = Code_Thingol.consts_program thy false cs;
haftmann@38929
   474
  in produce_code_for thy target some_width some_module_name args naming program names_cs end;
haftmann@38929
   475
haftmann@38929
   476
fun present_code thy cs names_stmt target some_width some_module_name args =
haftmann@38929
   477
  let
haftmann@38929
   478
    val (names_cs, (naming, program)) = Code_Thingol.consts_program thy false cs;
haftmann@38929
   479
  in present_code_for thy target some_width some_module_name args naming program (names_cs, names_stmt naming) end;
haftmann@34021
   480
haftmann@37824
   481
fun check_code thy cs seris =
haftmann@37824
   482
  let
haftmann@37824
   483
    val (names_cs, (naming, program)) = Code_Thingol.consts_program thy false cs;
haftmann@38918
   484
    val _ = map (fn ((target, strict), args) =>
haftmann@38918
   485
      check_code_for thy target strict args naming program names_cs) seris;
haftmann@37824
   486
  in () end;
haftmann@37824
   487
haftmann@37824
   488
fun check_code_cmd raw_cs seris thy = check_code thy (read_const_exprs thy raw_cs) seris;
haftmann@37824
   489
haftmann@39480
   490
local
haftmann@39480
   491
haftmann@39480
   492
val parse_const_terms = Scan.repeat1 Args.term
haftmann@39480
   493
  >> (fn ts => fn thy => map (Code.check_const thy) ts);
haftmann@39480
   494
haftmann@39480
   495
fun parse_names category parse internalize lookup =
haftmann@39480
   496
  Scan.lift (Args.parens (Args.$$$ category)) |-- Scan.repeat1 parse
haftmann@39480
   497
  >> (fn xs => fn thy => fn naming => map_filter (lookup naming o internalize thy) xs);
haftmann@39480
   498
  
haftmann@39480
   499
val parse_consts = parse_names "consts" Args.term
haftmann@39480
   500
  Code.check_const Code_Thingol.lookup_const ;
haftmann@39480
   501
haftmann@39480
   502
val parse_types = parse_names "types" (Scan.lift Args.name)
haftmann@39480
   503
  Sign.intern_type Code_Thingol.lookup_tyco;
haftmann@39480
   504
haftmann@39480
   505
val parse_classes = parse_names "classes" (Scan.lift Args.name)
haftmann@39480
   506
  Sign.intern_class Code_Thingol.lookup_class;
haftmann@39480
   507
haftmann@39480
   508
val parse_instances = parse_names "instances" (Scan.lift (Args.name --| Args.$$$ "::" -- Args.name))
haftmann@39480
   509
  (fn thy => fn (raw_tyco, raw_class) => (Sign.intern_class thy raw_class, Sign.intern_type thy raw_tyco))
haftmann@39480
   510
    Code_Thingol.lookup_instance;
haftmann@39480
   511
haftmann@39480
   512
in
haftmann@39480
   513
haftmann@39480
   514
val _ = Thy_Output.antiquotation "code_stmts"
haftmann@39480
   515
  (parse_const_terms -- Scan.repeat (parse_consts || parse_types || parse_classes || parse_instances)
haftmann@39480
   516
    -- Scan.lift (Args.parens (Args.name -- Scan.option Parse.int)))
haftmann@39480
   517
  (fn {context = ctxt, ...} => fn ((mk_cs, mk_stmtss), (target, some_width)) =>
haftmann@39480
   518
    let val thy = ProofContext.theory_of ctxt in
haftmann@39480
   519
      present_code thy (mk_cs thy)
haftmann@39480
   520
        (fn naming => maps (fn f => f thy naming) mk_stmtss)
haftmann@39480
   521
        target some_width "Example" []
haftmann@39480
   522
    end);
haftmann@39480
   523
haftmann@39480
   524
end;
haftmann@39480
   525
haftmann@34021
   526
haftmann@28054
   527
(** serializer configuration **)
haftmann@27000
   528
haftmann@27000
   529
(* data access *)
haftmann@24219
   530
haftmann@24992
   531
fun cert_class thy class =
haftmann@24992
   532
  let
haftmann@24992
   533
    val _ = AxClass.get_info thy class;
haftmann@24992
   534
  in class end;
haftmann@24992
   535
haftmann@27103
   536
fun read_class thy = cert_class thy o Sign.intern_class thy;
haftmann@24992
   537
haftmann@24992
   538
fun cert_tyco thy tyco =
haftmann@24992
   539
  let
haftmann@24992
   540
    val _ = if Sign.declared_tyname thy tyco then ()
haftmann@24992
   541
      else error ("No such type constructor: " ^ quote tyco);
haftmann@24992
   542
  in tyco end;
haftmann@24992
   543
haftmann@27103
   544
fun read_tyco thy = cert_tyco thy o Sign.intern_type thy;
haftmann@24219
   545
haftmann@34071
   546
fun cert_inst thy (class, tyco) =
haftmann@34071
   547
  (cert_class thy class, cert_tyco thy tyco);
haftmann@34071
   548
haftmann@34071
   549
fun read_inst thy (raw_tyco, raw_class) =
haftmann@34071
   550
  (read_class thy raw_class, read_tyco thy raw_tyco);
haftmann@34071
   551
haftmann@37844
   552
fun gen_add_syntax (mapp, upd, del) prep_x prep_syn target raw_x some_raw_syn thy =
haftmann@24219
   553
  let
haftmann@37840
   554
    val x = prep_x thy raw_x;
haftmann@37844
   555
    val change = case some_raw_syn
haftmann@37844
   556
     of SOME raw_syn => upd (x, prep_syn thy x raw_syn)
haftmann@37844
   557
      | NONE => del x;
haftmann@38925
   558
  in (map_symbol_syntax target o mapp) change thy end;
haftmann@24219
   559
haftmann@38923
   560
fun gen_add_class_syntax prep_class =
haftmann@37844
   561
  gen_add_syntax (apfst o apfst, Symtab.update, Symtab.delete_safe) prep_class ((K o K) I);
haftmann@34071
   562
haftmann@38923
   563
fun gen_add_instance_syntax prep_inst =
haftmann@37844
   564
  gen_add_syntax (apfst o apsnd, Symreltab.update, Symreltab.delete_safe) prep_inst ((K o K) I);
haftmann@24219
   565
haftmann@38923
   566
fun gen_add_tyco_syntax prep_tyco =
haftmann@37844
   567
  gen_add_syntax (apsnd o apfst, Symtab.update, Symtab.delete_safe) prep_tyco
haftmann@37844
   568
    (fn thy => fn tyco => fn syn => if fst syn <> Sign.arity_number thy tyco
haftmann@34071
   569
      then error ("Number of arguments mismatch in syntax for type constructor " ^ quote tyco)
haftmann@37844
   570
      else syn);
haftmann@34071
   571
haftmann@38923
   572
fun gen_add_const_syntax prep_const =
haftmann@37844
   573
  gen_add_syntax (apsnd o apsnd, Symtab.update, Symtab.delete_safe) prep_const
haftmann@37881
   574
    (fn thy => fn c => fn syn =>
haftmann@37881
   575
      if Code_Printer.requires_args syn > Code.args_number thy c
haftmann@24423
   576
      then error ("Too many arguments in syntax for constant " ^ quote c)
haftmann@37881
   577
      else syn);
haftmann@24219
   578
haftmann@39817
   579
fun add_reserved target sym thy =
haftmann@24219
   580
  let
haftmann@39817
   581
    val (_, data) = collapse_hierarchy thy target;
haftmann@39817
   582
    val _ = if member (op =) (the_reserved data) sym
haftmann@24219
   583
      then error ("Reserved symbol " ^ quote sym ^ " already declared")
haftmann@39817
   584
      else ();
haftmann@39817
   585
  in
haftmann@39817
   586
    thy
haftmann@39817
   587
    |> map_reserved target (insert (op =) sym)
haftmann@39817
   588
  end;
haftmann@24992
   589
haftmann@28926
   590
fun gen_add_include read_const target args thy =
haftmann@24992
   591
  let
haftmann@28926
   592
    fun add (name, SOME (content, raw_cs)) incls =
haftmann@24992
   593
          let
haftmann@24992
   594
            val _ = if Symtab.defined incls name
haftmann@24992
   595
              then warning ("Overwriting existing include " ^ name)
haftmann@24992
   596
              else ();
haftmann@28926
   597
            val cs = map (read_const thy) raw_cs;
haftmann@34152
   598
          in Symtab.update (name, (Code_Printer.str content, cs)) incls end
haftmann@28926
   599
      | add (name, NONE) incls = Symtab.delete name incls;
haftmann@28926
   600
  in map_includes target (add args) thy end;
haftmann@28926
   601
haftmann@33969
   602
val add_include = gen_add_include (K I);
haftmann@31156
   603
val add_include_cmd = gen_add_include Code.read_const;
haftmann@24219
   604
haftmann@38933
   605
fun add_module_alias target (thyname, "") =
haftmann@38933
   606
      map_module_alias target (Symtab.delete thyname)
haftmann@38933
   607
  | add_module_alias target (thyname, modlname) =
haftmann@38933
   608
      let
haftmann@38933
   609
        val xs = Long_Name.explode modlname;
haftmann@38933
   610
        val xs' = map (Name.desymbolize true) xs;
haftmann@38933
   611
      in if xs' = xs
haftmann@38933
   612
        then map_module_alias target (Symtab.update (thyname, modlname))
haftmann@38933
   613
        else error ("Invalid module name: " ^ quote modlname ^ "\n"
haftmann@38933
   614
          ^ "perhaps try " ^ quote (Long_Name.implode xs'))
haftmann@38933
   615
      end;
haftmann@24219
   616
haftmann@28663
   617
fun gen_allow_abort prep_const raw_c thy =
haftmann@24841
   618
  let
haftmann@28663
   619
    val c = prep_const thy raw_c;
haftmann@34248
   620
  in thy |> (Targets.map o apfst o apsnd) (insert (op =) c) end;
haftmann@24841
   621
haftmann@27000
   622
haftmann@27103
   623
(* concrete syntax *)
haftmann@27000
   624
haftmann@34021
   625
local
haftmann@34021
   626
haftmann@34152
   627
fun zip_list (x::xs) f g =
haftmann@34152
   628
  f
haftmann@37881
   629
  :|-- (fn y =>
haftmann@34152
   630
    fold_map (fn x => g |-- f >> pair x) xs
haftmann@37881
   631
    :|-- (fn xys => pair ((x, y) :: xys)));
haftmann@34152
   632
haftmann@37881
   633
fun process_multi_syntax parse_thing parse_syntax change =
haftmann@37881
   634
  (Parse.and_list1 parse_thing
haftmann@37881
   635
  :|-- (fn things => Scan.repeat1 (Parse.$$$ "(" |-- Parse.name --
haftmann@37881
   636
        (zip_list things parse_syntax (Parse.$$$ "and")) --| Parse.$$$ ")")))
haftmann@37881
   637
  >> (Toplevel.theory oo fold)
haftmann@37881
   638
    (fn (target, syns) => fold (fn (raw_x, syn) => change target raw_x syn) syns);
haftmann@24219
   639
haftmann@24219
   640
in
haftmann@24219
   641
haftmann@38923
   642
val add_class_syntax = gen_add_class_syntax cert_class;
haftmann@38923
   643
val add_instance_syntax = gen_add_instance_syntax cert_inst;
haftmann@38923
   644
val add_tyco_syntax = gen_add_tyco_syntax cert_tyco;
haftmann@38923
   645
val add_const_syntax = gen_add_const_syntax (K I);
haftmann@27103
   646
val allow_abort = gen_allow_abort (K I);
haftmann@28054
   647
val add_reserved = add_reserved;
haftmann@33969
   648
val add_include = add_include;
haftmann@24219
   649
haftmann@38923
   650
val add_class_syntax_cmd = gen_add_class_syntax read_class;
haftmann@38923
   651
val add_instance_syntax_cmd = gen_add_instance_syntax read_inst;
haftmann@38923
   652
val add_tyco_syntax_cmd = gen_add_tyco_syntax read_tyco;
haftmann@38923
   653
val add_const_syntax_cmd = gen_add_const_syntax Code.read_const;
haftmann@31156
   654
val allow_abort_cmd = gen_allow_abort Code.read_const;
haftmann@24219
   655
haftmann@28054
   656
fun parse_args f args =
wenzelm@36959
   657
  case Scan.read Token.stopper f args
haftmann@28054
   658
   of SOME x => x
haftmann@28054
   659
    | NONE => error "Bad serializer arguments";
haftmann@28054
   660
haftmann@28054
   661
haftmann@27304
   662
(** Isar setup **)
haftmann@27103
   663
haftmann@37824
   664
val (inK, module_nameK, fileK, checkingK) = ("in", "module_name", "file", "checking");
haftmann@37824
   665
haftmann@37824
   666
val code_expr_argsP = Scan.optional (Parse.$$$ "(" |-- Args.parse --| Parse.$$$ ")") [];
haftmann@27103
   667
haftmann@30494
   668
val code_exprP =
haftmann@37824
   669
  Scan.repeat1 Parse.term_group :|-- (fn raw_cs =>
haftmann@37825
   670
    ((Parse.$$$ checkingK |-- Scan.repeat (Parse.name
haftmann@37825
   671
      -- ((Parse.$$$ "?" |-- Scan.succeed false) || Scan.succeed true) -- code_expr_argsP))
haftmann@37824
   672
      >> (fn seris => check_code_cmd raw_cs seris)
haftmann@37824
   673
    || Scan.repeat (Parse.$$$ inK |-- Parse.name
haftmann@38933
   674
       -- Scan.optional (Parse.$$$ module_nameK |-- Parse.name) ""
haftmann@37824
   675
       -- Scan.optional (Parse.$$$ fileK |-- Parse.name) ""
haftmann@37824
   676
       -- code_expr_argsP) >> (fn seris => export_code_cmd raw_cs seris)));
haftmann@27103
   677
haftmann@37824
   678
val _ = List.app Keyword.keyword [inK, module_nameK, fileK, checkingK];
wenzelm@24867
   679
wenzelm@24867
   680
val _ =
wenzelm@36960
   681
  Outer_Syntax.command "code_class" "define code syntax for class" Keyword.thy_decl (
haftmann@37881
   682
    process_multi_syntax Parse.xname (Scan.option Parse.string)
haftmann@38923
   683
    add_class_syntax_cmd);
haftmann@24219
   684
wenzelm@24867
   685
val _ =
wenzelm@36960
   686
  Outer_Syntax.command "code_instance" "define code syntax for instance" Keyword.thy_decl (
haftmann@37881
   687
    process_multi_syntax (Parse.xname --| Parse.$$$ "::" -- Parse.xname)
wenzelm@36960
   688
      (Scan.option (Parse.minus >> K ()))
haftmann@38923
   689
    add_instance_syntax_cmd);
haftmann@24219
   690
wenzelm@24867
   691
val _ =
wenzelm@36960
   692
  Outer_Syntax.command "code_type" "define code syntax for type constructor" Keyword.thy_decl (
haftmann@37881
   693
    process_multi_syntax Parse.xname Code_Printer.parse_tyco_syntax
haftmann@38923
   694
    add_tyco_syntax_cmd);
haftmann@24219
   695
wenzelm@24867
   696
val _ =
wenzelm@36960
   697
  Outer_Syntax.command "code_const" "define code syntax for constant" Keyword.thy_decl (
haftmann@37881
   698
    process_multi_syntax Parse.term_group Code_Printer.parse_const_syntax
haftmann@38923
   699
    add_const_syntax_cmd);
haftmann@24219
   700
wenzelm@24867
   701
val _ =
wenzelm@36960
   702
  Outer_Syntax.command "code_reserved" "declare words as reserved for target language"
wenzelm@36960
   703
    Keyword.thy_decl (
wenzelm@36960
   704
    Parse.name -- Scan.repeat1 Parse.name
haftmann@24219
   705
    >> (fn (target, reserveds) => (Toplevel.theory o fold (add_reserved target)) reserveds)
haftmann@24841
   706
  );
haftmann@24219
   707
wenzelm@24867
   708
val _ =
wenzelm@36960
   709
  Outer_Syntax.command "code_include" "declare piece of code to be included in generated code"
wenzelm@36960
   710
    Keyword.thy_decl (
wenzelm@36960
   711
    Parse.name -- Parse.name -- (Parse.text :|-- (fn "-" => Scan.succeed NONE
wenzelm@36960
   712
      | s => Scan.optional (Parse.$$$ "attach" |-- Scan.repeat1 Parse.term) [] >> pair s >> SOME))
haftmann@28926
   713
    >> (fn ((target, name), content_consts) =>
haftmann@28926
   714
        (Toplevel.theory o add_include_cmd target) (name, content_consts))
haftmann@24992
   715
  );
haftmann@24992
   716
haftmann@24992
   717
val _ =
wenzelm@36960
   718
  Outer_Syntax.command "code_modulename" "alias module to other name" Keyword.thy_decl (
wenzelm@36960
   719
    Parse.name -- Scan.repeat1 (Parse.name -- Parse.name)
haftmann@27103
   720
    >> (fn (target, modlnames) => (Toplevel.theory o fold (add_module_alias target)) modlnames)
haftmann@27103
   721
  );
haftmann@27103
   722
haftmann@27103
   723
val _ =
wenzelm@36960
   724
  Outer_Syntax.command "code_abort" "permit constant to be implemented as program abort"
wenzelm@36960
   725
    Keyword.thy_decl (
wenzelm@36960
   726
    Scan.repeat1 Parse.term_group >> (Toplevel.theory o fold allow_abort_cmd)
haftmann@24841
   727
  );
haftmann@24219
   728
wenzelm@24867
   729
val _ =
wenzelm@36960
   730
  Outer_Syntax.command "export_code" "generate executable code for constants"
wenzelm@36960
   731
    Keyword.diag (Parse.!!! code_exprP >> (fn f => Toplevel.keep (f o Toplevel.theory_of)));
haftmann@30494
   732
haftmann@24219
   733
end; (*local*)
haftmann@24219
   734
haftmann@39646
   735
haftmann@39646
   736
(** external entrance point -- for codegen tool **)
haftmann@39646
   737
haftmann@39750
   738
fun codegen_tool thyname cmd_expr =
haftmann@39646
   739
  let
haftmann@39646
   740
    val thy = Thy_Info.get_theory thyname;
haftmann@39646
   741
    val parse = Scan.read Token.stopper (Parse.!!! code_exprP) o
haftmann@39646
   742
      (filter Token.is_proper o Outer_Syntax.scan Position.none);
haftmann@39646
   743
  in case parse cmd_expr
haftmann@39646
   744
   of SOME f => (writeln "Now generating code..."; f thy)
haftmann@39646
   745
    | NONE => error ("Bad directive " ^ quote cmd_expr)
haftmann@39646
   746
  end;
haftmann@39646
   747
haftmann@24219
   748
end; (*struct*)