INTERFACE M3AST_FE_priv;

(***************************************************************************)
(*                      Copyright (C) Olivetti 1989                        *)
(*                          All Rights reserved                            *)
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(* upon this software are permitted to any person, provided this same      *)
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(* warranties with respect to this software, whether expressed or implied  *)
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(* of this software.                                                       *)
(***************************************************************************)

(* Private types for the FE view. *)

(* Each AST contains a handle on errors generated during compilation. 
   See "M3AST_FE_priv_F" for representation details. *)

(* M3AST_AS.Compilation_Unit =>
     fe_priv_errors: Unit_errors *)

TYPE
  Unit_errors <: REFANY;  (* an opaque type to denote errors in a unit *)

END M3AST_FE_priv.