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------------------------------------------------------------------------------
-- --
-- GNAT COMPILER COMPONENTS --
-- --
-- S E M _ D I S T --
-- --
-- S p e c --
-- --
-- Copyright (C) 1992-2018, 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 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 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. --
-- Extensive contributions were provided by Ada Core Technologies Inc. --
-- --
------------------------------------------------------------------------------
-- Semantic processing for distribution annex facilities
with Snames; use Snames;
with Types; use Types;
package Sem_Dist is
function Get_PCS_Name return PCS_Names;
-- Return the name of a literal of type DSA_Implementation_Name in package
-- System.Partition_Interface indicating what PCS is currently in use.
function Get_PCS_Version return Int;
-- Return the version number of the PCS API implemented by the PCS.
-- The consistency of this version with the one expected by Exp_Dist
-- (Exp_Dist.PCS_Version_Number) in Rtsfind.RTE.Check_RPC.
-- If no PCS version information is available, 0 is returned.
function Is_Valid_Remote_Object_Type (E : Entity_Id) return Boolean;
-- True if tagged type E is a valid candidate as the root type of the
-- designated type for a RACW, i.e. a tagged limited private type, or a
-- limited interface type, or a private extension of such a type.
procedure Add_Stub_Constructs (N : Node_Id);
-- Create the stubs constructs for a remote call interface package
-- specification or body or for a shared passive specification. For caller
-- stubs, expansion takes place directly in the specification and no
-- additional compilation unit is created.
function Build_RAS_Primitive_Specification
(Subp_Spec : Node_Id;
Remote_Object_Type : Node_Id) return Node_Id;
-- Build a subprogram specification for the primitive operation of the
-- Remote_Object_Type used to implement a remote access-to-subprogram
-- type whose parameter profile is given by specification Subp_Spec.
function Is_All_Remote_Call (N : Node_Id) return Boolean;
-- Check whether a function or procedure call should be expanded into
-- a remote call, because the entity is declared in a package decl that
-- is not currently in scope, and the proper pragmas apply.
procedure Process_Partition_Id (N : Node_Id);
-- Replace attribute reference with call to runtime function. The result
-- is converted to the context type, because the attribute yields a
-- universal integer value.
procedure Process_Remote_AST_Attribute (N : Node_Id; New_Type : Entity_Id);
-- Given N, an access attribute reference node whose prefix is a
-- remote subprogram, rewrite N with a call to a conversion function
-- whose return type is New_Type.
procedure Process_Remote_AST_Declaration (N : Node_Id);
-- Given N, an access to subprogram type declaration node in RCI or remote
-- types unit, build a new record (fat pointer) type declaration using the
-- old Defining_Identifier of N and a link to the old declaration node N
-- whose Defining_Identifier is changed. We also construct declarations of
-- two subprograms in the unit specification which handle remote access to
-- subprogram type (fat pointer) dereference and the unit receiver that
-- handles remote calls (from remote access to subprogram type values.)
function Remote_AST_E_Dereference (P : Node_Id) return Boolean;
-- If the prefix of an explicit dereference is a record type that
-- represent the fat pointer for an Remote access to subprogram, in the
-- context of a call, rewrite the enclosing call node into remote call,
-- the first actual of which is the fat pointer. Return true if the
-- context is correct and the transformation took place.
function Remote_AST_I_Dereference (P : Node_Id) return Boolean;
-- If P is a record type that represents the fat pointer for a remote
-- access to subprogram, and P is the prefix of a call, insert an explicit
-- dereference and perform the transformation described for the previous
-- function.
function Remote_AST_Null_Value
(N : Node_Id;
Typ : Entity_Id) return Boolean;
-- If N is a null value and Typ a remote access to subprogram type, this
-- function will check if null needs to be replaced with an aggregate and
-- will return True in this case. Otherwise, it will return False.
function Package_Specification_Of_Scope (E : Entity_Id) return Node_Id;
-- Return the N_Package_Specification corresponding to a scope E
function Is_RACW_Stub_Type_Operation (Op : Entity_Id) return Boolean;
-- True when Op is a primitive operation of an RACW stub type
end Sem_Dist;
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