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[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.5.1/] [gcc/] [ada/] [impunit.ads] - Blame information for rev 281

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1 281 jeremybenn
------------------------------------------------------------------------------
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--                                                                          --
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--                         GNAT COMPILER COMPONENTS                         --
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--                                                                          --
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--                              I M P U N I T                               --
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--                                                                          --
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--                                 S p e c                                  --
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--                                                                          --
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--          Copyright (C) 2000-2009, Free Software Foundation, Inc.         --
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--                                                                          --
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-- GNAT is free software;  you can  redistribute it  and/or modify it under --
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-- terms of the  GNU General Public License as published  by the Free Soft- --
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-- ware  Foundation;  either version 3,  or (at your option) any later ver- --
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-- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --
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-- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --
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-- or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License --
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-- for  more details.  You should have  received  a copy of the GNU General --
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-- Public License  distributed with GNAT; see file COPYING3.  If not, go to --
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-- http://www.gnu.org/licenses for a complete copy of the license.          --
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--                                                                          --
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-- GNAT was originally developed  by the GNAT team at  New York University. --
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-- Extensive contributions were provided by Ada Core Technologies Inc.      --
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--                                                                          --
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------------------------------------------------------------------------------
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--  This package contains data and functions used to determine if a given
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--  unit is an internal unit intended only for use by the implementation
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--  and which should not be directly WITH'ed by user code. It also checks
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--  for Ada 05 units that should only be WITH'ed in Ada 05 mode.
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with Types; use Types;
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package Impunit is
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   type Kind_Of_Unit is
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     (Implementation_Unit,
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      --  Unit from predefined library intended to be used only by the
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      --  compiler generated code, or from the implementation of the run time.
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      --  Use of such a unit generates a warning unless the client is compiled
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      --  with the -gnatg switch. If we are being super strict, this should be
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      --  an error for the case of Ada units, but that seems over strenuous.
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      Not_Predefined_Unit,
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      --  This is not a predefined unit, so no checks are needed
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      Ada_95_Unit,
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      --  This unit is defined in the Ada 95 RM, and can be freely with'ed
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      --  in both Ada 95 mode and Ada 05 mode. Note that in Ada 83 mode, no
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      --  child units are allowed, so you can't even name such a unit.
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      Ada_05_Unit);
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   --  This unit is defined in the Ada 05 RM. Withing this unit from a
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   --  Ada 95 mode program will generate a warning (again, strictly speaking
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   --  this should be an error, but that seems over-strenuous).
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   function Get_Kind_Of_Unit (U : Unit_Number_Type) return Kind_Of_Unit;
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   --  Given the unit number of a unit, this function determines the type
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   --  of the unit, as defined above. If the result is Implementation_Unit,
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   --  then the name of a possible atlernative equivalent unit is placed in
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   --  Error_Msg_String/Slen on return. If there is no alternative name, or
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   --  if the result is not Implementation_Unit, then Error_Msg_Slen is zero
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   --  on return, indicating that no alternative name was found.
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   function Is_Known_Unit (Nam : Node_Id) return Boolean;
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   --  Nam is the possible name of a child unit, represented as a selected
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   --  component node. This function determines whether the name matches
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   --  one of the known library units, and if so, returns True. If the name
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   --  does not match any known library unit, False is returned.
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end Impunit;

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