(* M2Pass.def provides setting and testing of the current pass.

Copyright (C) 2001-2023 Free Software Foundation, Inc.
Contributed by Gaius Mulley <gaius.mulley@southwales.ac.uk>.

This file is part of GNU Modula-2.

GNU Modula-2 is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3, or (at your option)
any later version.

GNU Modula-2 is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
General Public License for more details.

You should have received a copy of the GNU General Public License
along with GNU Modula-2; see the file COPYING3.  If not see
<http://www.gnu.org/licenses/>.  *)

DEFINITION MODULE M2Pass ;

(*
   Author     : Gaius Mulley
   Title      : M2Lexical
   Date       : Thu Nov  2 12:58:18 GMT 1989
   Description: Controls the setting and testing of the current pass.
   Last update: Thu Nov  2 12:58:27 GMT 1989
*)

EXPORT QUALIFIED SetPassToNoPass,
                 SetPassToPass0,
                 SetPassToPass1,
                 SetPassToPass2,
                 SetPassToPassC,
                 SetPassToPass3,
                 SetPassToPassHidden,
                 SetPassToCodeGeneration,
                 SetPassToErrorPass,
                 IsNoPass,
                 IsPass0,
                 IsPass1,
                 IsPass2,
                 IsPass3,
                 IsPassC,
                 IsPassHidden,
                 IsPassCodeGeneration,
                 IsErrorPass ;


(*
   SetPassToNoPass - sets the pass state to no Pass.
*)

PROCEDURE SetPassToNoPass ;


(*
   SetPassToPass0 - sets the pass state to Pass 0.
*)

PROCEDURE SetPassToPass0 ;


(*
   SetPassToPass1 - sets the pass state to Pass 1.
*)

PROCEDURE SetPassToPass1 ;


(*
   SetPassToPass2 - sets the pass state to Pass 2.
*)

PROCEDURE SetPassToPass2 ;


(*
   SetPassToPassC - sets the pass state to Pass C.
*)

PROCEDURE SetPassToPassC ;


(*
   SetPassToPass3 - sets the pass state to Pass 3.
*)

PROCEDURE SetPassToPass3 ;


(*
   SetPassToPassHidden - sets the pass state to the hidden type pass.
*)

PROCEDURE SetPassToPassHidden ;


(*
   SetPassToCodeGeneration - sets the pass state to CodeGeneration.
*)

PROCEDURE SetPassToCodeGeneration ;


(*
   SetPassToErrorPass - sets the pass state to no Error Pass.
*)

PROCEDURE SetPassToErrorPass ;


(*
   IsNoPass - returns true if currently in no Pass.
*)

PROCEDURE IsNoPass () : BOOLEAN ;


(*
   IsPass0 - returns true if currently in Pass 0.
*)

PROCEDURE IsPass0 () : BOOLEAN ;


(*
   IsPass1 - returns true if currently in Pass 1.
*)

PROCEDURE IsPass1 () : BOOLEAN ;


(*
   IsPass2 - returns true if currently in Pass 2.
*)

PROCEDURE IsPass2 () : BOOLEAN ;


(*
   IsPassC - returns true if currently in Pass C.
*)

PROCEDURE IsPassC () : BOOLEAN ;


(*
   IsPass3 - returns true if currently in Pass 3.
*)

PROCEDURE IsPass3 () : BOOLEAN ;


(*
   IsPassHidden - returns TRUE if currently parsing for hidden types.
*)

PROCEDURE IsPassHidden () : BOOLEAN ;


(*
   IsPassCodeGeneration - returns true if currently in the CodeGeneration Pass.
*)

PROCEDURE IsPassCodeGeneration () : BOOLEAN ;


(*
   IsErrorPass - returns true if currently in the Error Pass.
*)

PROCEDURE IsErrorPass () : BOOLEAN ;


END M2Pass.