1------------------------------------------------------------------------------ 2-- -- 3-- GNAT COMPILER COMPONENTS -- 4-- -- 5-- S E M _ D I S T -- 6-- -- 7-- S p e c -- 8-- -- 9-- Copyright (C) 1992-2000 Free Software Foundation, Inc. -- 10-- -- 11-- GNAT is free software; you can redistribute it and/or modify it under -- 12-- terms of the GNU General Public License as published by the Free Soft- -- 13-- ware Foundation; either version 2, or (at your option) any later ver- -- 14-- sion. GNAT is distributed in the hope that it will be useful, but WITH- -- 15-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY -- 16-- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License -- 17-- for more details. You should have received a copy of the GNU General -- 18-- Public License distributed with GNAT; see file COPYING. If not, write -- 19-- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, -- 20-- MA 02111-1307, USA. -- 21-- -- 22-- GNAT was originally developed by the GNAT team at New York University. -- 23-- Extensive contributions were provided by Ada Core Technologies Inc. -- 24-- -- 25------------------------------------------------------------------------------ 26 27-- Semantic processing for distribution annex facilities 28 29with Types; use Types; 30 31package Sem_Dist is 32 33 procedure Add_Stub_Constructs (N : Node_Id); 34 -- Create the stubs constructs for a remote call interface package 35 -- specification or body or for a shared passive specification. For 36 -- caller stubs, expansion takes place directly in the specification and 37 -- no additional compilation unit is created. 38 39 function Is_All_Remote_Call (N : Node_Id) return Boolean; 40 -- Check whether a function or procedure call should be expanded into 41 -- a remote call, because the entity is declared in a package decl that 42 -- is not currently in scope, and the proper pragmas apply. 43 44 procedure Process_Partition_Id (N : Node_Id); 45 -- Replace attribute reference with call to runtime function. The result 46 -- is converted to the context type, because the attribute yields a 47 -- universal integer value. 48 49 procedure Process_Remote_AST_Attribute (N : Node_Id; New_Type : Entity_Id); 50 -- Given N, an access attribute reference node whose prefix is a 51 -- remote subprogram, rewrite N with a call to a conversion function 52 -- whose return type is New_Type. 53 54 procedure Process_Remote_AST_Declaration (N : Node_Id); 55 -- Given N, an access to subprogram type declaration node in RCI or 56 -- remote types unit, build a new record (fat pointer) type declaration 57 -- using the old Defining_Identifier of N and a link to the old 58 -- declaration node N whose Defining_Identifier is changed. 59 -- We also construct declarations of two subprograms in the unit 60 -- specification which handle remote access to subprogram type 61 -- (fat pointer) dereference and the unit receiver that handles 62 -- remote calls (from remote access to subprogram type values.) 63 64 function Remote_AST_E_Dereference (P : Node_Id) return Boolean; 65 -- If the prefix of an explicit dereference is a record type that 66 -- represent the fat pointer for an Remote access to subprogram, in 67 -- the context of a call, rewrite the enclosing call node into a 68 -- remote call, the first actual of which is the fat pointer. Return 69 -- true if the context is correct and the transformation took place. 70 71 function Remote_AST_I_Dereference (P : Node_Id) return Boolean; 72 -- If P is a record type that represents the fat pointer for a remote 73 -- access to subprogram, and P is the prefix of a call, insert an 74 -- explicit dereference and perform the transformation described for 75 -- the previous function. 76 77 function Remote_AST_Null_Value 78 (N : Node_Id; 79 Typ : Entity_Id) 80 return Boolean; 81 -- If N is a null value and Typ a remote access to subprogram type, 82 -- this function will check if null needs to be replaced with an 83 -- aggregate and will return True in this case. Otherwise, it will 84 -- return False. 85 86 function Get_Subprogram_Id (E : Entity_Id) return Int; 87 -- Given a subprogram defined in a RCI package, get its subprogram id 88 -- which will be used for remote calls. 89 90 function Package_Specification_Of_Scope (E : Entity_Id) return Node_Id; 91 -- Return the N_Package_Specification corresponding to a scope E 92 93end Sem_Dist; 94