New Language: Ada

From-SVN: r45959

1 files changed, 87 insertions, 0 deletions

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+------------------------------------------------------------------------------
+--                                                                          --
+--                         GNAT COMPILER COMPONENTS                         --
+--                                                                          --
+--                              S E M _ C H 7                               --
+--                                                                          --
+--                                 S p e c                                  --
+--                                                                          --
+--                            $Revision: 1.19 $                             --
+--                                                                          --
+--        Copyright (C) 1992,1993,1994 Free Software Foundation, Inc.       --
+--                                                                          --
+-- GNAT is free software;  you can  redistribute it  and/or modify it under --
+-- terms of the  GNU General Public License as published  by the Free Soft- --
+-- ware  Foundation;  either version 2,  or (at your option) any later ver- --
+-- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --
+-- OUT 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  distributed with GNAT;  see file COPYING.  If not, write --
+-- to  the Free Software Foundation,  59 Temple Place - Suite 330,  Boston, --
+-- MA 02111-1307, USA.                                                      --
+--                                                                          --
+-- GNAT was originally developed  by the GNAT team at  New York University. --
+-- It is now maintained by Ada Core Technologies Inc (http://www.gnat.com). --
+--                                                                          --
+------------------------------------------------------------------------------
+
+with Types; use Types;
+package Sem_Ch7  is
+
+   procedure Analyze_Package_Body                       (N : Node_Id);
+   procedure Analyze_Package_Declaration                (N : Node_Id);
+   procedure Analyze_Package_Specification              (N : Node_Id);
+   procedure Analyze_Private_Type_Declaration           (N : Node_Id);
+
+   procedure End_Package_Scope (P : Entity_Id);
+   --  Calls Uninstall_Declarations, and then pops the scope stack.
+
+   procedure Exchange_Declarations (Id : Entity_Id);
+   --  Exchange private and full declaration on entry/exit from a package
+   --  declaration or body. The semantic links of the respective nodes
+   --  are preserved in the exchange.
+
+   procedure Install_Visible_Declarations (P : Entity_Id);
+   procedure Install_Private_Declarations (P : Entity_Id);
+
+   --  On entrance to a package body, make declarations in package spec
+   --  immediately visible.
+
+   --  When compiling the body of a package,  both routines are called in
+   --  succession. When compiling the body of a child package, the call
+   --  to Install_Private_Declaration is immediate for private children,
+   --  but is deffered until the compilation of the  private part of the
+   --  child for public child packages.
+
+   procedure Install_Package_Entity (Id : Entity_Id);
+   --  Basic procedure for the previous two. Places one entity on its
+   --  visibility chain, and recurses on the visible part if the entity
+   --  is an inner package.
+
+   function Unit_Requires_Body (P : Entity_Id) return Boolean;
+   --  Check if a unit requires a body. A specification requires a body
+   --  if it contains declarations that require completion in a body.
+
+   procedure May_Need_Implicit_Body (E : Entity_Id);
+   --  If a package declaration contains tasks and does not require a
+   --  body, create an implicit body at the end of the current declarative
+   --  part to activate those tasks.
+
+   function Is_Fully_Visible (Type_Id : Entity_Id) return Boolean;
+   --  Indicates whether the Full Declaration of a private type is visible.
+
+   procedure New_Private_Type (N : Node_Id; Id : Entity_Id; Def : Node_Id);
+   --  Common processing for private type declarations and for formal
+   --  private type declarations. For private types, N and Def are the type
+   --  declaration node; for formal private types, Def is the formal type
+   --  definition.
+
+   procedure Uninstall_Declarations (P : Entity_Id);
+   --  At the end of a package declaration or body, declarations in the
+   --  visible part are no longer immediately visible, and declarations in
+   --  the private part are not visible at all. For inner packages, place
+   --  visible entities at the end of their homonym chains. For compilation
+   --  units, make all entities invisible. In both cases, exchange private
+   --  and visible declarations to restore order of elaboration.
+end Sem_Ch7;