src/Tools/Code/code_target.ML
author haftmann
Fri Sep 17 09:21:49 2010 +0200 (2010-09-17)
changeset 39484 505f95975a5a
parent 39480 a2ed61449dcc
child 39646 64fdbee67135
permissions -rw-r--r--
closures separate serializer initialization from serializer invocation as far as appropriate
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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 shell_command: string (*theory name*) -> string (*export_code expr*) -> unit
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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,
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      make_command: string -> string -> string } } -> 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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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) = (output width some_path content; NONE)
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  | serialization _ string content width Produce = SOME (string [] width content)
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  | serialization _ string content width (Present stmt_names) = SOME (string stmt_names width content);
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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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    program: 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 -> 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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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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    fun collapse_hierarchy 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_hierarchy 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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    val (modify, data) = collapse_hierarchy 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 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 _ = if null empty_funs then () else error ("No code equations for "
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      ^ commas (map (Sign.extern_const thy) empty_funs));
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    val program4 = Graph.subgraph (member (op =) names4) program3;
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  in (names4, program4) end;
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fun invoke_serializer thy abortable serializer literals reserved all_includes
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    module_alias proto_class_syntax proto_instance_syntax proto_tyco_syntax proto_const_syntax
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    module_name args naming proto_program names =
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  let
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    val (names_hidden, (class_syntax, tyco_syntax, const_syntax)) =
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      activate_symbol_syntax thy literals naming
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        proto_class_syntax proto_instance_syntax proto_tyco_syntax proto_const_syntax;
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    val (names_all, program) = project_program thy abortable names_hidden names proto_program;
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    fun select_include (name, (content, cs)) =
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   315
      if null cs orelse exists (fn c => case Code_Thingol.lookup_const naming c
haftmann@39484
   316
       of SOME name => member (op =) names_all name
haftmann@39484
   317
        | NONE => false) cs
haftmann@39484
   318
      then SOME (name, content) else NONE;
haftmann@39484
   319
    val includes = map_filter select_include (Symtab.dest all_includes);
haftmann@34021
   320
  in
haftmann@38926
   321
    serializer args {
haftmann@38927
   322
      labelled_name = Code_Thingol.labelled_name thy proto_program,
haftmann@38926
   323
      reserved_syms = reserved,
haftmann@38926
   324
      includes = includes,
haftmann@38933
   325
      module_alias = if module_name = "" then Symtab.lookup module_alias else K (SOME module_name),
haftmann@38927
   326
      class_syntax = Symtab.lookup class_syntax,
haftmann@38927
   327
      tyco_syntax = Symtab.lookup tyco_syntax,
haftmann@38927
   328
      const_syntax = Symtab.lookup const_syntax,
haftmann@39142
   329
      program = program }
haftmann@34021
   330
  end;
haftmann@34021
   331
haftmann@39484
   332
fun mount_serializer thy target some_width module_name args =
haftmann@34021
   333
  let
haftmann@39484
   334
    val (default_width, abortable, data, modify) = activate_target thy target;
haftmann@38921
   335
    val serializer = case the_description data
haftmann@38927
   336
     of Fundamental seri => #serializer seri;
haftmann@34021
   337
    val reserved = the_reserved data;
haftmann@38779
   338
    val module_alias = the_module_alias data 
haftmann@38925
   339
    val { class, instance, tyco, const } = the_symbol_syntax data;
haftmann@34021
   340
    val literals = the_literals thy target;
haftmann@34071
   341
    val width = the_default default_width some_width;
haftmann@39484
   342
  in fn naming => fn program => fn names =>
haftmann@34021
   343
    invoke_serializer thy abortable serializer literals reserved
haftmann@39484
   344
      (the_includes data) module_alias class instance tyco const module_name args
haftmann@39484
   345
        naming (modify naming program) names width
haftmann@34021
   346
  end;
haftmann@34021
   347
haftmann@38933
   348
fun assert_module_name "" = error ("Empty module name not allowed.")
haftmann@38933
   349
  | assert_module_name module_name = module_name;
haftmann@38933
   350
haftmann@34021
   351
in
haftmann@34021
   352
haftmann@39484
   353
fun export_code_for thy some_path target some_width module_name args =
haftmann@39484
   354
  export some_path ooo mount_serializer thy target some_width module_name args;
haftmann@38918
   355
haftmann@39484
   356
fun produce_code_for thy target some_width module_name args =
haftmann@39102
   357
  let
haftmann@39484
   358
    val serializer = mount_serializer thy target some_width (assert_module_name module_name) args;
haftmann@39484
   359
  in fn naming => fn program => fn names =>
haftmann@39484
   360
    produce (serializer naming program names) |> apsnd (fn deresolve => map deresolve names)
haftmann@39484
   361
  end;
haftmann@38929
   362
haftmann@39484
   363
fun present_code_for thy target some_width module_name args =
haftmann@39484
   364
  let
haftmann@39484
   365
    val serializer = mount_serializer thy target some_width (assert_module_name module_name) args;
haftmann@39484
   366
  in fn naming => fn program => fn (names, selects) =>
haftmann@39484
   367
    present selects (serializer naming program names)
haftmann@39484
   368
  end;
haftmann@38918
   369
haftmann@38918
   370
fun check_code_for thy target strict args naming program names_cs =
haftmann@37824
   371
  let
haftmann@38933
   372
    val module_name = "Code";
haftmann@37824
   373
    val { env_var, make_destination, make_command } =
haftmann@37824
   374
      (#check o the_fundamental thy) target;
haftmann@37824
   375
    val env_param = getenv env_var;
haftmann@37824
   376
    fun ext_check env_param p =
haftmann@37824
   377
      let 
haftmann@37824
   378
        val destination = make_destination p;
haftmann@38929
   379
        val _ = export (SOME destination) (mount_serializer thy target (SOME 80)
haftmann@38933
   380
          module_name args naming program names_cs);
haftmann@38863
   381
        val cmd = make_command env_param module_name;
haftmann@37824
   382
      in if bash ("cd " ^ File.shell_path p ^ " && " ^ cmd ^ " 2>&1") <> 0
haftmann@37824
   383
        then error ("Code check failed for " ^ target ^ ": " ^ cmd)
haftmann@37824
   384
        else ()
haftmann@37824
   385
      end;
haftmann@37824
   386
  in if env_param = ""
haftmann@37825
   387
    then if strict
haftmann@37825
   388
      then error (env_var ^ " not set; cannot check code for " ^ target)
haftmann@37825
   389
      else warning (env_var ^ " not set; skipped checking code for " ^ target)
haftmann@37824
   390
    else Cache_IO.with_tmp_dir "Code_Test" (ext_check env_param)
haftmann@37824
   391
  end;
haftmann@37824
   392
haftmann@34021
   393
end; (* local *)
haftmann@34021
   394
haftmann@34021
   395
haftmann@34021
   396
(* code generation *)
haftmann@34021
   397
haftmann@34021
   398
fun transitivly_non_empty_funs thy naming program =
haftmann@34021
   399
  let
haftmann@34021
   400
    val cs = subtract (op =) (abort_allowed thy) (Code_Thingol.empty_funs program);
haftmann@34021
   401
    val names = map_filter (Code_Thingol.lookup_const naming) cs;
haftmann@34021
   402
  in subtract (op =) (Graph.all_preds program names) (Graph.keys program) end;
haftmann@34021
   403
haftmann@34021
   404
fun read_const_exprs thy cs =
haftmann@34021
   405
  let
haftmann@34021
   406
    val (cs1, cs2) = Code_Thingol.read_const_exprs thy cs;
haftmann@36271
   407
    val (names2, (naming, program)) = Code_Thingol.consts_program thy true cs2;
haftmann@36271
   408
    val names3 = transitivly_non_empty_funs thy naming program;
haftmann@36271
   409
    val cs3 = map_filter (fn (c, name) =>
haftmann@36271
   410
      if member (op =) names3 name then SOME c else NONE) (cs2 ~~ names2);
haftmann@36271
   411
  in union (op =) cs3 cs1 end;
haftmann@34021
   412
haftmann@38918
   413
fun prep_destination "" = NONE
haftmann@38918
   414
  | prep_destination "-" = NONE
haftmann@38918
   415
  | prep_destination s = SOME (Path.explode s);
haftmann@38918
   416
haftmann@34021
   417
fun export_code thy cs seris =
haftmann@34021
   418
  let
haftmann@37824
   419
    val (names_cs, (naming, program)) = Code_Thingol.consts_program thy false cs;
haftmann@38918
   420
    val _ = map (fn (((target, module_name), some_path), args) =>
haftmann@38918
   421
      export_code_for thy some_path target NONE module_name args naming program names_cs) seris;
haftmann@34021
   422
  in () end;
haftmann@34021
   423
haftmann@38918
   424
fun export_code_cmd raw_cs seris thy = export_code thy (read_const_exprs thy raw_cs)
haftmann@38918
   425
  ((map o apfst o apsnd) prep_destination seris);
haftmann@38918
   426
haftmann@38929
   427
fun produce_code thy cs target some_width some_module_name args =
haftmann@38918
   428
  let
haftmann@38918
   429
    val (names_cs, (naming, program)) = Code_Thingol.consts_program thy false cs;
haftmann@38929
   430
  in produce_code_for thy target some_width some_module_name args naming program names_cs end;
haftmann@38929
   431
haftmann@38929
   432
fun present_code thy cs names_stmt target some_width some_module_name args =
haftmann@38929
   433
  let
haftmann@38929
   434
    val (names_cs, (naming, program)) = Code_Thingol.consts_program thy false cs;
haftmann@38929
   435
  in present_code_for thy target some_width some_module_name args naming program (names_cs, names_stmt naming) end;
haftmann@34021
   436
haftmann@37824
   437
fun check_code thy cs seris =
haftmann@37824
   438
  let
haftmann@37824
   439
    val (names_cs, (naming, program)) = Code_Thingol.consts_program thy false cs;
haftmann@38918
   440
    val _ = map (fn ((target, strict), args) =>
haftmann@38918
   441
      check_code_for thy target strict args naming program names_cs) seris;
haftmann@37824
   442
  in () end;
haftmann@37824
   443
haftmann@37824
   444
fun check_code_cmd raw_cs seris thy = check_code thy (read_const_exprs thy raw_cs) seris;
haftmann@37824
   445
haftmann@39480
   446
local
haftmann@39480
   447
haftmann@39480
   448
val parse_const_terms = Scan.repeat1 Args.term
haftmann@39480
   449
  >> (fn ts => fn thy => map (Code.check_const thy) ts);
haftmann@39480
   450
haftmann@39480
   451
fun parse_names category parse internalize lookup =
haftmann@39480
   452
  Scan.lift (Args.parens (Args.$$$ category)) |-- Scan.repeat1 parse
haftmann@39480
   453
  >> (fn xs => fn thy => fn naming => map_filter (lookup naming o internalize thy) xs);
haftmann@39480
   454
  
haftmann@39480
   455
val parse_consts = parse_names "consts" Args.term
haftmann@39480
   456
  Code.check_const Code_Thingol.lookup_const ;
haftmann@39480
   457
haftmann@39480
   458
val parse_types = parse_names "types" (Scan.lift Args.name)
haftmann@39480
   459
  Sign.intern_type Code_Thingol.lookup_tyco;
haftmann@39480
   460
haftmann@39480
   461
val parse_classes = parse_names "classes" (Scan.lift Args.name)
haftmann@39480
   462
  Sign.intern_class Code_Thingol.lookup_class;
haftmann@39480
   463
haftmann@39480
   464
val parse_instances = parse_names "instances" (Scan.lift (Args.name --| Args.$$$ "::" -- Args.name))
haftmann@39480
   465
  (fn thy => fn (raw_tyco, raw_class) => (Sign.intern_class thy raw_class, Sign.intern_type thy raw_tyco))
haftmann@39480
   466
    Code_Thingol.lookup_instance;
haftmann@39480
   467
haftmann@39480
   468
in
haftmann@39480
   469
haftmann@39480
   470
val _ = Thy_Output.antiquotation "code_stmts"
haftmann@39480
   471
  (parse_const_terms -- Scan.repeat (parse_consts || parse_types || parse_classes || parse_instances)
haftmann@39480
   472
    -- Scan.lift (Args.parens (Args.name -- Scan.option Parse.int)))
haftmann@39480
   473
  (fn {context = ctxt, ...} => fn ((mk_cs, mk_stmtss), (target, some_width)) =>
haftmann@39480
   474
    let val thy = ProofContext.theory_of ctxt in
haftmann@39480
   475
      present_code thy (mk_cs thy)
haftmann@39480
   476
        (fn naming => maps (fn f => f thy naming) mk_stmtss)
haftmann@39480
   477
        target some_width "Example" []
haftmann@39480
   478
      |> Latex.output_typewriter
haftmann@39480
   479
    end);
haftmann@39480
   480
haftmann@39480
   481
end;
haftmann@39480
   482
haftmann@34021
   483
haftmann@28054
   484
(** serializer configuration **)
haftmann@27000
   485
haftmann@27000
   486
(* data access *)
haftmann@24219
   487
haftmann@24992
   488
fun cert_class thy class =
haftmann@24992
   489
  let
haftmann@24992
   490
    val _ = AxClass.get_info thy class;
haftmann@24992
   491
  in class end;
haftmann@24992
   492
haftmann@27103
   493
fun read_class thy = cert_class thy o Sign.intern_class thy;
haftmann@24992
   494
haftmann@24992
   495
fun cert_tyco thy tyco =
haftmann@24992
   496
  let
haftmann@24992
   497
    val _ = if Sign.declared_tyname thy tyco then ()
haftmann@24992
   498
      else error ("No such type constructor: " ^ quote tyco);
haftmann@24992
   499
  in tyco end;
haftmann@24992
   500
haftmann@27103
   501
fun read_tyco thy = cert_tyco thy o Sign.intern_type thy;
haftmann@24219
   502
haftmann@34071
   503
fun cert_inst thy (class, tyco) =
haftmann@34071
   504
  (cert_class thy class, cert_tyco thy tyco);
haftmann@34071
   505
haftmann@34071
   506
fun read_inst thy (raw_tyco, raw_class) =
haftmann@34071
   507
  (read_class thy raw_class, read_tyco thy raw_tyco);
haftmann@34071
   508
haftmann@37844
   509
fun gen_add_syntax (mapp, upd, del) prep_x prep_syn target raw_x some_raw_syn thy =
haftmann@24219
   510
  let
haftmann@37840
   511
    val x = prep_x thy raw_x;
haftmann@37844
   512
    val change = case some_raw_syn
haftmann@37844
   513
     of SOME raw_syn => upd (x, prep_syn thy x raw_syn)
haftmann@37844
   514
      | NONE => del x;
haftmann@38925
   515
  in (map_symbol_syntax target o mapp) change thy end;
haftmann@24219
   516
haftmann@38923
   517
fun gen_add_class_syntax prep_class =
haftmann@37844
   518
  gen_add_syntax (apfst o apfst, Symtab.update, Symtab.delete_safe) prep_class ((K o K) I);
haftmann@34071
   519
haftmann@38923
   520
fun gen_add_instance_syntax prep_inst =
haftmann@37844
   521
  gen_add_syntax (apfst o apsnd, Symreltab.update, Symreltab.delete_safe) prep_inst ((K o K) I);
haftmann@24219
   522
haftmann@38923
   523
fun gen_add_tyco_syntax prep_tyco =
haftmann@37844
   524
  gen_add_syntax (apsnd o apfst, Symtab.update, Symtab.delete_safe) prep_tyco
haftmann@37844
   525
    (fn thy => fn tyco => fn syn => if fst syn <> Sign.arity_number thy tyco
haftmann@34071
   526
      then error ("Number of arguments mismatch in syntax for type constructor " ^ quote tyco)
haftmann@37844
   527
      else syn);
haftmann@34071
   528
haftmann@38923
   529
fun gen_add_const_syntax prep_const =
haftmann@37844
   530
  gen_add_syntax (apsnd o apsnd, Symtab.update, Symtab.delete_safe) prep_const
haftmann@37881
   531
    (fn thy => fn c => fn syn =>
haftmann@37881
   532
      if Code_Printer.requires_args syn > Code.args_number thy c
haftmann@24423
   533
      then error ("Too many arguments in syntax for constant " ^ quote c)
haftmann@37881
   534
      else syn);
haftmann@24219
   535
haftmann@24219
   536
fun add_reserved target =
haftmann@24219
   537
  let
haftmann@24219
   538
    fun add sym syms = if member (op =) syms sym
haftmann@24219
   539
      then error ("Reserved symbol " ^ quote sym ^ " already declared")
haftmann@24219
   540
      else insert (op =) sym syms
haftmann@27103
   541
  in map_reserved target o add end;
haftmann@24992
   542
haftmann@28926
   543
fun gen_add_include read_const target args thy =
haftmann@24992
   544
  let
haftmann@28926
   545
    fun add (name, SOME (content, raw_cs)) incls =
haftmann@24992
   546
          let
haftmann@24992
   547
            val _ = if Symtab.defined incls name
haftmann@24992
   548
              then warning ("Overwriting existing include " ^ name)
haftmann@24992
   549
              else ();
haftmann@28926
   550
            val cs = map (read_const thy) raw_cs;
haftmann@34152
   551
          in Symtab.update (name, (Code_Printer.str content, cs)) incls end
haftmann@28926
   552
      | add (name, NONE) incls = Symtab.delete name incls;
haftmann@28926
   553
  in map_includes target (add args) thy end;
haftmann@28926
   554
haftmann@33969
   555
val add_include = gen_add_include (K I);
haftmann@31156
   556
val add_include_cmd = gen_add_include Code.read_const;
haftmann@24219
   557
haftmann@38933
   558
fun add_module_alias target (thyname, "") =
haftmann@38933
   559
      map_module_alias target (Symtab.delete thyname)
haftmann@38933
   560
  | add_module_alias target (thyname, modlname) =
haftmann@38933
   561
      let
haftmann@38933
   562
        val xs = Long_Name.explode modlname;
haftmann@38933
   563
        val xs' = map (Name.desymbolize true) xs;
haftmann@38933
   564
      in if xs' = xs
haftmann@38933
   565
        then map_module_alias target (Symtab.update (thyname, modlname))
haftmann@38933
   566
        else error ("Invalid module name: " ^ quote modlname ^ "\n"
haftmann@38933
   567
          ^ "perhaps try " ^ quote (Long_Name.implode xs'))
haftmann@38933
   568
      end;
haftmann@24219
   569
haftmann@28663
   570
fun gen_allow_abort prep_const raw_c thy =
haftmann@24841
   571
  let
haftmann@28663
   572
    val c = prep_const thy raw_c;
haftmann@34248
   573
  in thy |> (Targets.map o apfst o apsnd) (insert (op =) c) end;
haftmann@24841
   574
haftmann@27000
   575
haftmann@27103
   576
(* concrete syntax *)
haftmann@27000
   577
haftmann@34021
   578
local
haftmann@34021
   579
haftmann@34152
   580
fun zip_list (x::xs) f g =
haftmann@34152
   581
  f
haftmann@37881
   582
  :|-- (fn y =>
haftmann@34152
   583
    fold_map (fn x => g |-- f >> pair x) xs
haftmann@37881
   584
    :|-- (fn xys => pair ((x, y) :: xys)));
haftmann@34152
   585
haftmann@37881
   586
fun process_multi_syntax parse_thing parse_syntax change =
haftmann@37881
   587
  (Parse.and_list1 parse_thing
haftmann@37881
   588
  :|-- (fn things => Scan.repeat1 (Parse.$$$ "(" |-- Parse.name --
haftmann@37881
   589
        (zip_list things parse_syntax (Parse.$$$ "and")) --| Parse.$$$ ")")))
haftmann@37881
   590
  >> (Toplevel.theory oo fold)
haftmann@37881
   591
    (fn (target, syns) => fold (fn (raw_x, syn) => change target raw_x syn) syns);
haftmann@24219
   592
haftmann@24219
   593
in
haftmann@24219
   594
haftmann@38923
   595
val add_class_syntax = gen_add_class_syntax cert_class;
haftmann@38923
   596
val add_instance_syntax = gen_add_instance_syntax cert_inst;
haftmann@38923
   597
val add_tyco_syntax = gen_add_tyco_syntax cert_tyco;
haftmann@38923
   598
val add_const_syntax = gen_add_const_syntax (K I);
haftmann@27103
   599
val allow_abort = gen_allow_abort (K I);
haftmann@28054
   600
val add_reserved = add_reserved;
haftmann@33969
   601
val add_include = add_include;
haftmann@24219
   602
haftmann@38923
   603
val add_class_syntax_cmd = gen_add_class_syntax read_class;
haftmann@38923
   604
val add_instance_syntax_cmd = gen_add_instance_syntax read_inst;
haftmann@38923
   605
val add_tyco_syntax_cmd = gen_add_tyco_syntax read_tyco;
haftmann@38923
   606
val add_const_syntax_cmd = gen_add_const_syntax Code.read_const;
haftmann@31156
   607
val allow_abort_cmd = gen_allow_abort Code.read_const;
haftmann@24219
   608
haftmann@28054
   609
fun parse_args f args =
wenzelm@36959
   610
  case Scan.read Token.stopper f args
haftmann@28054
   611
   of SOME x => x
haftmann@28054
   612
    | NONE => error "Bad serializer arguments";
haftmann@28054
   613
haftmann@28054
   614
haftmann@27304
   615
(** Isar setup **)
haftmann@27103
   616
haftmann@37824
   617
val (inK, module_nameK, fileK, checkingK) = ("in", "module_name", "file", "checking");
haftmann@37824
   618
haftmann@37824
   619
val code_expr_argsP = Scan.optional (Parse.$$$ "(" |-- Args.parse --| Parse.$$$ ")") [];
haftmann@27103
   620
haftmann@30494
   621
val code_exprP =
haftmann@37824
   622
  Scan.repeat1 Parse.term_group :|-- (fn raw_cs =>
haftmann@37825
   623
    ((Parse.$$$ checkingK |-- Scan.repeat (Parse.name
haftmann@37825
   624
      -- ((Parse.$$$ "?" |-- Scan.succeed false) || Scan.succeed true) -- code_expr_argsP))
haftmann@37824
   625
      >> (fn seris => check_code_cmd raw_cs seris)
haftmann@37824
   626
    || Scan.repeat (Parse.$$$ inK |-- Parse.name
haftmann@38933
   627
       -- Scan.optional (Parse.$$$ module_nameK |-- Parse.name) ""
haftmann@37824
   628
       -- Scan.optional (Parse.$$$ fileK |-- Parse.name) ""
haftmann@37824
   629
       -- code_expr_argsP) >> (fn seris => export_code_cmd raw_cs seris)));
haftmann@27103
   630
haftmann@37824
   631
val _ = List.app Keyword.keyword [inK, module_nameK, fileK, checkingK];
wenzelm@24867
   632
wenzelm@24867
   633
val _ =
wenzelm@36960
   634
  Outer_Syntax.command "code_class" "define code syntax for class" Keyword.thy_decl (
haftmann@37881
   635
    process_multi_syntax Parse.xname (Scan.option Parse.string)
haftmann@38923
   636
    add_class_syntax_cmd);
haftmann@24219
   637
wenzelm@24867
   638
val _ =
wenzelm@36960
   639
  Outer_Syntax.command "code_instance" "define code syntax for instance" Keyword.thy_decl (
haftmann@37881
   640
    process_multi_syntax (Parse.xname --| Parse.$$$ "::" -- Parse.xname)
wenzelm@36960
   641
      (Scan.option (Parse.minus >> K ()))
haftmann@38923
   642
    add_instance_syntax_cmd);
haftmann@24219
   643
wenzelm@24867
   644
val _ =
wenzelm@36960
   645
  Outer_Syntax.command "code_type" "define code syntax for type constructor" Keyword.thy_decl (
haftmann@37881
   646
    process_multi_syntax Parse.xname Code_Printer.parse_tyco_syntax
haftmann@38923
   647
    add_tyco_syntax_cmd);
haftmann@24219
   648
wenzelm@24867
   649
val _ =
wenzelm@36960
   650
  Outer_Syntax.command "code_const" "define code syntax for constant" Keyword.thy_decl (
haftmann@37881
   651
    process_multi_syntax Parse.term_group Code_Printer.parse_const_syntax
haftmann@38923
   652
    add_const_syntax_cmd);
haftmann@24219
   653
wenzelm@24867
   654
val _ =
wenzelm@36960
   655
  Outer_Syntax.command "code_reserved" "declare words as reserved for target language"
wenzelm@36960
   656
    Keyword.thy_decl (
wenzelm@36960
   657
    Parse.name -- Scan.repeat1 Parse.name
haftmann@24219
   658
    >> (fn (target, reserveds) => (Toplevel.theory o fold (add_reserved target)) reserveds)
haftmann@24841
   659
  );
haftmann@24219
   660
wenzelm@24867
   661
val _ =
wenzelm@36960
   662
  Outer_Syntax.command "code_include" "declare piece of code to be included in generated code"
wenzelm@36960
   663
    Keyword.thy_decl (
wenzelm@36960
   664
    Parse.name -- Parse.name -- (Parse.text :|-- (fn "-" => Scan.succeed NONE
wenzelm@36960
   665
      | s => Scan.optional (Parse.$$$ "attach" |-- Scan.repeat1 Parse.term) [] >> pair s >> SOME))
haftmann@28926
   666
    >> (fn ((target, name), content_consts) =>
haftmann@28926
   667
        (Toplevel.theory o add_include_cmd target) (name, content_consts))
haftmann@24992
   668
  );
haftmann@24992
   669
haftmann@24992
   670
val _ =
wenzelm@36960
   671
  Outer_Syntax.command "code_modulename" "alias module to other name" Keyword.thy_decl (
wenzelm@36960
   672
    Parse.name -- Scan.repeat1 (Parse.name -- Parse.name)
haftmann@27103
   673
    >> (fn (target, modlnames) => (Toplevel.theory o fold (add_module_alias target)) modlnames)
haftmann@27103
   674
  );
haftmann@27103
   675
haftmann@27103
   676
val _ =
wenzelm@36960
   677
  Outer_Syntax.command "code_abort" "permit constant to be implemented as program abort"
wenzelm@36960
   678
    Keyword.thy_decl (
wenzelm@36960
   679
    Scan.repeat1 Parse.term_group >> (Toplevel.theory o fold allow_abort_cmd)
haftmann@24841
   680
  );
haftmann@24219
   681
wenzelm@24867
   682
val _ =
wenzelm@36960
   683
  Outer_Syntax.command "export_code" "generate executable code for constants"
wenzelm@36960
   684
    Keyword.diag (Parse.!!! code_exprP >> (fn f => Toplevel.keep (f o Toplevel.theory_of)));
haftmann@30494
   685
haftmann@30494
   686
fun shell_command thyname cmd = Toplevel.program (fn _ =>
wenzelm@36960
   687
  (use_thy thyname; case Scan.read Token.stopper (Parse.!!! code_exprP)
wenzelm@36960
   688
    ((filter Token.is_proper o Outer_Syntax.scan Position.none) cmd)
wenzelm@37863
   689
   of SOME f => (writeln "Now generating code..."; f (Thy_Info.get_theory thyname))
haftmann@30494
   690
    | NONE => error ("Bad directive " ^ quote cmd)))
haftmann@33969
   691
  handle Runtime.TOPLEVEL_ERROR => OS.Process.exit OS.Process.failure;
haftmann@27103
   692
haftmann@24219
   693
end; (*local*)
haftmann@24219
   694
haftmann@24219
   695
end; (*struct*)