| ------------------------------------------------------------------------------ |
| -- -- |
| -- 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; |
