------------------------------------------------------------------------------ -- -- -- GNAT COMPILER COMPONENTS -- -- -- -- S E M _ P R A G -- -- -- -- S p e c -- -- -- -- Copyright (C) 1992-2004 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. -- -- Extensive contributions were provided by Ada Core Technologies Inc. -- -- -- ------------------------------------------------------------------------------ -- Pragma handling is isolated in a separate package -- (logically this processing belongs in chapter 4) with Types; use Types; package Sem_Prag is procedure Analyze_Pragma (N : Node_Id); -- Analyze procedure for pragma reference node N function Delay_Config_Pragma_Analyze (N : Node_Id) return Boolean; -- N is a pragma appearing in a configuration pragma file. Most -- such pragmas are analyzed when the file is read, before parsing -- and analyzing the main unit. However, the analysis of certain -- pragmas results in adding information to the compiled main unit, -- and this cannot be done till the main unit is processed. Such -- pragmas return True from this function and in Frontend pragmas -- where Delay_Config_Pragma_Analyze is True have their analysis -- delayed until after the main program is parsed and analyzed. function Is_Non_Significant_Pragma_Reference (N : Node_Id) return Boolean; -- The node N is a node for an entity and the issue is whether the -- occurrence is a reference for the purposes of giving warnings -- about unreferenced variables. This function returns True if the -- reference is not a reference from this point of view (e.g. the -- occurrence in a pragma Pack) and False if it is a real reference -- (e.g. the occcurrence in a pragma Export); function Is_Pragma_String_Literal (Par : Node_Id) return Boolean; -- Given an N_Pragma_Argument_Association node, Par, which has the form -- of an operator symbol, determines whether or not it should be treated -- as an string literal. This is called by Sem_Ch6.Analyze_Operator_Symbol. -- If True is returned, the argument is converted to a string literal. If -- False is returned, then the argument is treated as an entity reference -- to the operator. function Is_Config_Static_String (Arg : Node_Id) return Boolean; -- This is called for a configuration pragma that requires either a -- string literal or a concatenation of string literals. We cannot -- use normal static string processing because it is too early in -- the case of the pragma appearing in a configuration pragmas file. -- If Arg is of an appropriate form, then this call obtains the string -- (doing any necessary concatenations) and places it in Name_Buffer, -- setting Name_Len to its length, and then returns True. If it is -- not of the correct form, then an appropriate error message is -- posted, and False is returned. procedure Process_Compilation_Unit_Pragmas (N : Node_Id); -- Called at the start of processing compilation unit N to deal with -- any special issues regarding pragmas. In particular, we have to -- deal with Suppress_All at this stage, since it appears after the -- unit instead of before. procedure Set_Encoded_Interface_Name (E : Entity_Id; S : Node_Id); -- This routine is used to set an encoded interface name. The node -- S is an N_String_Literal node for the external name to be set, and -- E is an entity whose Interface_Name field is to be set. In the -- normal case where S contains a name that is a valid C identifier, -- then S is simply set as the value of the Interface_Name. Otherwise -- it is encoded. See the body for details of the encoding. This -- encoding is only done on VMS systems, since it seems pretty silly, -- but is needed to pass some dubious tests in the test suite. end Sem_Prag;