CristalCaveGem » LustreC

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(*                                                                  *)

(*  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.                                                    *)

(*                                                                  *)

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(** Base types and predefined operator types. *)

open Init

let init_zero = new_univar ()

let init_un =

  let univ = new_univar () in

  new_init Isucc(univ)

let rec init_omega =

  { init_desc = Isucc init_omega ; iid = -1 }

let is_omega init =

  let rec search path init =

 match init.init_desc with

 | Isucc init' -> List.mem init path or search (init::path) init'

 | _           -> false

  in search [] init

let init_unary_poly_op =

  let univ = new_univar () in

  new_init (Iarrow (univ, univ))

let init_pre_op =

  let univ = new_univar () in

  new_init (Iarrow (univ, new_init (Isucc univ)))

let init_arrow_op =

  let univ = new_univar () in

  new_init (Iarrow (new_init (Ituple [univ; init_un]), univ))

let init_fby_op_1 =

  let univ = new_univar () in

  new_init (Iarrow (init_zero,init_zero))

let init_fby_op_2 =

  init_pre_op

let init_bin_poly_op =

  let univ = new_univar () in

  new_init (Iarrow (new_init (Ituple [univ;univ]), univ))

let init_ter_poly_op =

  let univ = new_univar () in

  new_init (Iarrow (new_init (Ituple [univ;univ;univ]), univ))

let env =

  let init_env = Env.initial in

  let env' = 

    List.fold_right (fun op env -> Env.add_value env op init_unary_poly_op)

      ["uminus"; "not"] init_env in

  let env' = 

    List.fold_right (fun op env -> Env.add_value env op init_binary_poly_op)

      ["+"; "-"; "*"; "/"; "mod"; "&&"; "||"; "xor"; "impl"; "<"; "<="; ">"; ">="; "!="; "="] env' in

  let env' = 

    List.fold_right (fun op env -> Env.add_value env op init_ternary_poly_op)

      ["ite"] init_env in

  env'

(* Local Variables: *)

(* compile-command:"make -C .." *)

(* End: *)