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+--  Semantic analysis.
+--  Copyright (C) 2002, 2003, 2004, 2005 Tristan Gingold
+--
+--  GHDL 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 2, or (at your option) any later
+--  version.
+--
+--  GHDL 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 GCC; see the file COPYING.  If not, write to the Free
+--  Software Foundation, 59 Temple Place - Suite 330, Boston, MA
+--  02111-1307, USA.
+with Iirs; use Iirs;
+
+package Sem_Types is
+   --  Semantization of types (LRM chapter 3)
+
+   -- Semantize subtype indication DEF.
+   -- If INCOMPLETE is TRUE, then DEF may designate an incomplete type
+   -- definition.
+   -- This is used by sem_expr for qualified expression and allocators.
+   function Sem_Subtype_Indication (Def: Iir; Incomplete : Boolean := False)
+     return Iir;
+
+   -- Return FALSE if A_TYPE is an unconstrained array type or subtype.
+   function Sem_Is_Constrained (A_Type: Iir) return Boolean;
+
+   procedure Sem_Protected_Type_Body (Bod : Iir);
+
+   function Sem_Type_Definition (Def: Iir; Decl: Iir) return Iir;
+
+   --  Convert a range expression to a subtype definition whose constraint is
+   --  A_RANGE.
+   --  This function extract the type of the range expression.
+   function Range_To_Subtype_Definition (A_Range: Iir) return Iir;
+end Sem_Types;