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------------------------------------------------------------------------------
-- --
-- GNAT COMPILER COMPONENTS --
-- --
-- P R J . U T I L --
-- --
-- S p e c --
-- --
-- Copyright (C) 2001-2010, 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. --
-- --
------------------------------------------------------------------------------
-- Utilities for use in processing project files
package Prj.Util is
function Executable_Of
(Project : Project_Id;
In_Tree : Project_Tree_Ref;
Main : File_Name_Type;
Index : Int;
Ada_Main : Boolean := True;
Language : String := "";
Include_Suffix : Boolean := True) return File_Name_Type;
-- Return the value of the attribute Builder'Executable for file Main in
-- the project Project, if it exists. If there is no attribute Executable
-- for Main, remove the suffix from Main; then, if the attribute
-- Executable_Suffix is specified, add this suffix, otherwise add the
-- standard executable suffix for the platform.
--
-- If Include_Suffix is true, then the ".exe" suffix (or any suffix defined
-- in the config) will be added. The suffix defined by the user in his own
-- project file is always taken into account. Otherwise, such a suffix is
-- not added. In particular, the prefix should not be added if you are
-- potentially testing for cross-platforms, since the suffix might not be
-- known (its default value comes from the ...-gnatmake prefix).
--
-- What is Ada_Main???
-- What is Language???
procedure Put
(Into_List : in out Name_List_Index;
From_List : String_List_Id;
In_Tree : Project_Tree_Ref;
Lower_Case : Boolean := False);
-- Append a name list to a string list
-- Describe parameters???
procedure Duplicate
(This : in out Name_List_Index;
In_Tree : Project_Tree_Ref);
-- Duplicate a name list
function Value_Of
(Variable : Variable_Value;
Default : String) return String;
-- Get the value of a single string variable. If Variable is a string list,
-- is Nil_Variable_Value,or is defaulted, return Default.
function Value_Of
(Index : Name_Id;
In_Array : Array_Element_Id;
In_Tree : Project_Tree_Ref) return Name_Id;
-- Get a single string array component. Returns No_Name if there is no
-- component Index, if In_Array is null, or if the component is a String
-- list. Depending on the attribute (only attributes may be associative
-- arrays) the index may or may not be case sensitive. If the index is not
-- case sensitive, it is first set to lower case before the search in the
-- associative array.
function Value_Of
(Index : Name_Id;
Src_Index : Int := 0;
In_Array : Array_Element_Id;
In_Tree : Project_Tree_Ref;
Force_Lower_Case_Index : Boolean := False;
Allow_Wildcards : Boolean := False) return Variable_Value;
-- Get a string array component (single String or String list). Returns
-- Nil_Variable_Value if no component Index or if In_Array is null.
--
-- Depending on the attribute (only attributes may be associative arrays)
-- the index may or may not be case sensitive. If the index is not case
-- sensitive, it is first set to lower case before the search in the
-- associative array.
function Value_Of
(Name : Name_Id;
Index : Int := 0;
Attribute_Or_Array_Name : Name_Id;
In_Package : Package_Id;
In_Tree : Project_Tree_Ref;
Force_Lower_Case_Index : Boolean := False;
Allow_Wildcards : Boolean := False) return Variable_Value;
-- In a specific package:
-- - if there exists an array Attribute_Or_Array_Name with an index Name,
-- returns the corresponding component (depending on the attribute, the
-- index may or may not be case sensitive, see previous function),
-- - otherwise if there is a single attribute Attribute_Or_Array_Name,
-- returns this attribute,
-- - otherwise, returns Nil_Variable_Value.
-- If In_Package is null, returns Nil_Variable_Value.
function Value_Of
(Index : Name_Id;
In_Array : Name_Id;
In_Arrays : Array_Id;
In_Tree : Project_Tree_Ref) return Name_Id;
-- Get a string array component in an array of an array list. Returns
-- No_Name if there is no component Index, if In_Arrays is null, if
-- In_Array is not found in In_Arrays or if the component is a String list.
function Value_Of
(Name : Name_Id;
In_Arrays : Array_Id;
In_Tree : Project_Tree_Ref) return Array_Element_Id;
-- Returns a specified array in an array list. Returns No_Array_Element
-- if In_Arrays is null or if Name is not the name of an array in
-- In_Arrays. The caller must ensure that Name is in lower case.
function Value_Of
(Name : Name_Id;
In_Packages : Package_Id;
In_Tree : Project_Tree_Ref) return Package_Id;
-- Returns a specified package in a package list. Returns No_Package
-- if In_Packages is null or if Name is not the name of a package in
-- Package_List. The caller must ensure that Name is in lower case.
function Value_Of
(Variable_Name : Name_Id;
In_Variables : Variable_Id;
In_Tree : Project_Tree_Ref) return Variable_Value;
-- Returns a specified variable in a variable list. Returns null if
-- In_Variables is null or if Variable_Name is not the name of a
-- variable in In_Variables. Caller must ensure that Name is lower case.
procedure Write_Str
(S : String;
Max_Length : Positive;
Separator : Character);
-- Output string S using Output.Write_Str. If S is too long to fit in one
-- line of Max_Length, cut it in several lines, using Separator as the last
-- character of each line, if possible.
type Text_File is limited private;
-- Represents a text file (default is invalid text file)
function Is_Valid (File : Text_File) return Boolean;
-- Returns True if File designates an open text file that has not yet been
-- closed.
procedure Open (File : out Text_File; Name : String);
-- Open a text file to read (File is invalid if text file cannot be opened)
procedure Create (File : out Text_File; Name : String);
-- Create a text file to write (File is invaid if text file cannot be
-- created).
function End_Of_File (File : Text_File) return Boolean;
-- Returns True if the end of the text file File has been reached. Fails if
-- File is invalid. Return True if File is an out file.
procedure Get_Line
(File : Text_File;
Line : out String;
Last : out Natural);
-- Reads a line from an open text file (fails if File is invalid or in an
-- out file).
procedure Put (File : Text_File; S : String);
procedure Put_Line (File : Text_File; Line : String);
-- Output a string or a line to an out text file (fails if File is invalid
-- or in an in file).
procedure Close (File : in out Text_File);
-- Close an open text file. File becomes invalid. Fails if File is already
-- invalid or if an out file cannot be closed successfully.
-----------------------
-- Source info files --
-----------------------
procedure Write_Source_Info_File (Tree : Project_Tree_Ref);
-- Create a new source info file, with the path name specified in the
-- project tree data. Issue a warning if it is not possible to create
-- the new file.
procedure Read_Source_Info_File (Tree : Project_Tree_Ref);
-- Check if there is a source info file specified for the project Tree. If
-- so, attempt to read it. If the file exists and is successfully read, set
-- the flag Source_Info_File_Exists to True for the tree.
type Source_Info_Data is record
Project : Name_Id;
Language : Name_Id;
Kind : Source_Kind;
Display_Path_Name : Name_Id;
Path_Name : Name_Id;
Unit_Name : Name_Id := No_Name;
Index : Int := 0;
Naming_Exception : Boolean := False;
end record;
-- Data read from a source info file for a single source
type Source_Info is access all Source_Info_Data;
No_Source_Info : constant Source_Info := null;
type Source_Info_Iterator is private;
-- Iterator to get the sources for a single project
procedure Initialize
(Iter : out Source_Info_Iterator;
For_Project : Name_Id);
-- Initiaize Iter for the project
function Source_Info_Of (Iter : Source_Info_Iterator) return Source_Info;
-- Get the source info for the source corresponding to the current value of
-- the iterator. Returns No_Source_Info if there is no source corresponding
-- to the iterator.
procedure Next (Iter : in out Source_Info_Iterator);
-- Advance the iterator to the next source in the project
private
type Text_File_Data is record
FD : File_Descriptor := Invalid_FD;
Out_File : Boolean := False;
Buffer : String (1 .. 1_000);
Buffer_Len : Natural := 0;
Cursor : Natural := 0;
End_Of_File_Reached : Boolean := False;
end record;
type Text_File is access Text_File_Data;
type Source_Info_Iterator is record
Info : Source_Info;
Next : Natural;
end record;
end Prj.Util;
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