CristalCaveGem » LustreC

(********************************************************************)

(*                                                                  *)

(*  The LustreC compiler toolset   /  The LustreC Development Team  *)

(*  Copyright 2012 -    --   ONERA - CNRS - INPT                    *)

(*                                                                  *)

(*  LustreC is free software, distributed WITHOUT ANY WARRANTY      *)

(*  under the terms of the GNU Lesser General Public License        *)

(*  version 2.1.                                                    *)

(*                                                                  *)

(********************************************************************)

open Format 

open LustreSpec

open Corelang

(********************************************************************************************)

(*                      Lusic to/from Header Printing functions                             *)

(********************************************************************************************)

type lusic =

{ from_lusi : bool;

  contents  : top_decl list;

}

module HeaderMod = C_backend_header.EmptyMod

module Header = C_backend_header.Main (HeaderMod)

(* extracts a header from a program representing module own *)

let extract_header own prog =

 List.fold_right

   (fun decl header ->

     if decl.top_decl_itf || decl.top_decl_owner <> own then header else

    match decl.top_decl_desc with

    | Node nd        -> { decl with top_decl_desc = ImportedNode (Corelang.get_node_interface nd) } :: header 

    | ImportedNode _ -> header

    | Const _

    | TypeDef _

    | Open _         -> decl :: header)

   prog []

(* encode and write a header in a file *)

let write_lusic lusi (header : top_decl list) basename extension =

  let basename' = !Options.dest_dir ^ "/" ^ basename in

  let target_name = basename' ^ extension in

  let outchan = open_out_bin target_name in

  begin

    Marshal.to_channel outchan {from_lusi = lusi; contents = header} [];

    close_out outchan

  end

(* read and decode a header from a file *)

let read_lusic basename extension =

  let basename' = !Options.dest_dir ^ "/" ^ basename in

  let source_name = basename' ^ extension in

  let inchan = open_in_bin source_name in

  let lusic = (Marshal.from_channel inchan : lusic) in

  begin

    close_in inchan;

    lusic

  end

let print_lusic_to_h basename extension =

  let basename' = !Options.dest_dir ^ "/" ^ basename in

  let lusic = read_lusic basename extension in

  let header_name = basename' ^ ".h" in

  let h_out = open_out header_name in

  let h_fmt = formatter_of_out_channel h_out in

  begin

    Typing.uneval_prog_generics lusic.contents;

    Clock_calculus.uneval_prog_generics lusic.contents;

    Header.print_header_from_header h_fmt basename lusic.contents;

    close_out h_out

  end