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Diffstat (limited to 'gcc/ada/prj-ext.ads')
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diff --git a/gcc/ada/prj-ext.ads b/gcc/ada/prj-ext.ads new file mode 100644 index 000000000..1fb389c4a --- /dev/null +++ b/gcc/ada/prj-ext.ads @@ -0,0 +1,68 @@ +------------------------------------------------------------------------------ +-- -- +-- GNAT COMPILER COMPONENTS -- +-- -- +-- P R J . E X T -- +-- -- +-- S p e c -- +-- -- +-- Copyright (C) 2000-2010, 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. -- +-- -- +------------------------------------------------------------------------------ + +-- Subprograms to set, get and cache external references, to be used as +-- External functions in project files. + +with Prj.Tree; + +package Prj.Ext is + + ------------------------- + -- External References -- + ------------------------- + + -- External references influence the way a project tree is processed (in + -- particular they provide the values for the typed string variables that + -- are then used in case constructions). + + -- External references are project-tree specific, so that when multiple + -- trees are loaded in parallel we can have different scenarios (or even + -- load the same tree twice and see different views of it). + + procedure Add + (Tree : Prj.Tree.Project_Node_Tree_Ref; + External_Name : String; + Value : String); + -- Add an external reference (or modify an existing one) + + function Value_Of + (Tree : Prj.Tree.Project_Node_Tree_Ref; + External_Name : Name_Id; + With_Default : Name_Id := No_Name) + return Name_Id; + -- Get the value of an external reference, and cache it for future uses + + function Check + (Tree : Prj.Tree.Project_Node_Tree_Ref; + Declaration : String) return Boolean; + -- Check that an external declaration <external>=<value> is correct. + -- If it is correct, the external reference is Added. + + procedure Reset (Tree : Prj.Tree.Project_Node_Tree_Ref); + -- Clear the internal data structure that stores the external references + -- and free any allocated memory. + +end Prj.Ext; |