-- --
-- S p e c --
-- --
--- --
--- Copyright (C) 1992-1998 Free Software Foundation, Inc. --
+-- Copyright (C) 1992-2007, 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- --
+-- ware Foundation; either version 3, 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. --
+-- Public License distributed with GNAT; see file COPYING3. If not, go to --
+-- http://www.gnu.org/licenses for a complete copy of the license. --
-- --
-- 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). --
+-- Extensive contributions were provided by Ada Core Technologies Inc. --
-- --
------------------------------------------------------------------------------
-- This package contains utility routines used for the generation of the
-- stubs relevant to the distribution annex.
+with Namet; use Namet;
with Types; use Types;
package Exp_Dist is
- procedure Add_RAST_Features (Vis_Decl : in Node_Id);
+ PCS_Version_Number : constant := 1;
+ -- PCS interface version. This is used to check for consistency between the
+ -- compiler used to generate distribution stubs and the PCS implementation.
+ -- It must be incremented whenever a change is made to the generated code
+ -- for distribution stubs that would result in the compiler being
+ -- incompatible with an older version of the PCS, or vice versa.
+
+ procedure Add_RAST_Features (Vis_Decl : Node_Id);
-- Build and add bodies for dereference and 'Access subprograms for a
-- remote access to subprogram type. Vis_Decl is the declaration node for
-- the RAS type.
- procedure Add_RACW_Features (RACW_Type : in Entity_Id);
+ procedure Add_RACW_Features (RACW_Type : Entity_Id);
-- Add RACW features. If the RACW and the designated type are not in the
-- same scope, then Add_RACW_Primitive_Declarations_And_Bodies is called
-- automatically since we do know the primitive list already.
procedure Add_RACW_Primitive_Declarations_And_Bodies
- (Designated_Type : in Entity_Id;
- Insertion_Node : in Node_Id;
- Decls : in List_Id);
+ (Designated_Type : Entity_Id;
+ Insertion_Node : Node_Id;
+ Body_Decls : List_Id);
-- Add primitive for the stub type, and the RPC receiver. The declarations
- -- are inserted after insertion_Node, while the bodies are appened at the
+ -- are inserted after insertion_Node, while the bodies are appended at the
-- end of Decls.
procedure Remote_Types_Tagged_Full_View_Encountered
- (Full_View : in Entity_Id);
+ (Full_View : Entity_Id);
-- When a full view with a private view is encountered in a Remote_Types
-- package and corresponds to a tagged type, then this procedure is called
-- to generate the needed RACW features if it is needed.
- procedure RACW_Type_Is_Asynchronous (RACW_Type : in Entity_Id);
+ procedure RACW_Type_Is_Asynchronous (RACW_Type : Entity_Id);
-- This subprogram must be called when it is detected that the RACW type
-- is asynchronous.
- procedure Expand_Calling_Stubs_Bodies (Unit_Node : in Node_Id);
+ procedure Expand_Calling_Stubs_Bodies (Unit_Node : Node_Id);
-- Call the expansion phase for the calling stubs. The code will be added
-- at the end of the compilation unit, which is a package spec.
- procedure Expand_Receiving_Stubs_Bodies (Unit_Node : in Node_Id);
+ procedure Expand_Receiving_Stubs_Bodies (Unit_Node : Node_Id);
-- Call the expansion phase for the calling stubs. The code will be added
-- at the end of the compilation unit, which may be either a package spec
-- or a package body.
- procedure Expand_All_Calls_Remote_Subprogram_Call (N : in Node_Id);
+ procedure Expand_All_Calls_Remote_Subprogram_Call (N : Node_Id);
-- Rewrite a call to a subprogram located in a Remote_Call_Interface
-- package on which the pragma All_Calls_Remote applies so that it
-- goes through the PCS. N is either an N_Procedure_Call_Statement
-- Build stub for a shared passive package. U is the analyzed
-- compilation unit for a package declaration.
+ function Build_Subprogram_Id
+ (Loc : Source_Ptr;
+ E : Entity_Id) return Node_Id;
+ -- Build a literal representing the remote subprogram identifier of E
+
+ function Copy_Specification
+ (Loc : Source_Ptr;
+ Spec : Node_Id;
+ Ctrl_Type : Entity_Id := Empty;
+ New_Name : Name_Id := No_Name) return Node_Id;
+ -- Build a subprogram specification from another one, or from an
+ -- access-to-subprogram definition. If Ctrl_Type is not Empty, and any
+ -- controlling formal of an anonymous access type is found, then it is
+ -- replaced by an access to Ctrl_Type. If New_Name is given, then it will
+ -- be used as the name for the newly created spec.
+
+ function Corresponding_Stub_Type (RACW_Type : Entity_Id) return Entity_Id;
+ -- Return the stub type associated with the given RACW type
+
+ function Underlying_RACW_Type (RAS_Typ : Entity_Id) return Entity_Id;
+ -- Given a remote access-to-subprogram type or its equivalent
+ -- record type, return the RACW type generated to implement it.
+
+ procedure Append_RACW_Bodies (Decls : List_Id; Spec_Id : Entity_Id);
+ -- Append the unanalyzed subprogram bodies generated to support RACWs
+ -- declared in the given package spec (RACW stream subprograms, calling
+ -- stubs primitive operations) to the given list (which is expected to be
+ -- the declarations list for the corresponding package body, if there is
+ -- one). In the case where a body is present, the subprogram bodies must
+ -- not be generated in the package spec because this would cause an
+ -- incorrect attempt to freeze Taft amendment types declared in the spec.
+
+ function Make_Transportable_Check
+ (Loc : Source_Ptr;
+ Expr : Node_Id) return Node_Id;
+ -- Generate a check that the given expression (an actual in a remote
+ -- subprogram call, or the return value of a function in the context of
+ -- a remote call) satisfies the requirements for being transportable
+ -- across partitions, raising Program_Error if it does not.
+
end Exp_Dist;
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