------------------------------------------------------------------------------ -- -- -- GNAT COMPILER COMPONENTS -- -- -- -- S E M _ P R A G -- -- -- -- S p e c -- -- -- -- Copyright (C) 1992-2005, 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, 51 Franklin Street, Fifth Floor, -- -- Boston, MA 02110-1301, 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 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;