------------------------------------------------------------------------------ -- -- -- 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;