This file is indexed.

/usr/share/ada/adainclude/gnatprj/prj-env.ads is in libgnatprj4.9-dev 4.9.3-3ubuntu5.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
------------------------------------------------------------------------------
--                                                                          --
--                         GNAT COMPILER COMPONENTS                         --
--                                                                          --
--                              P R J . E N V                               --
--                                                                          --
--                                 S p e c                                  --
--                                                                          --
--          Copyright (C) 2001-2013, 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.      --
--                                                                          --
------------------------------------------------------------------------------

--  This package implements services for Project-aware tools, mostly related
--  to the environment (configuration pragma files, path files, mapping files).

with GNAT.Dynamic_HTables;
with GNAT.OS_Lib;

package Prj.Env is

   procedure Initialize (In_Tree : Project_Tree_Ref);
   --  Initialize global components relative to environment variables

   procedure Print_Sources (In_Tree : Project_Tree_Ref);
   --  Output the list of sources after Project files have been scanned

   procedure Create_Mapping (In_Tree : Project_Tree_Ref);
   --  Create in memory mapping from the sources of all the projects (in body
   --  of package Fmap), so that Osint.Find_File will find the correct path
   --  corresponding to a source.

   procedure Create_Temp_File
     (Shared    : Shared_Project_Tree_Data_Access;
      Path_FD   : out File_Descriptor;
      Path_Name : out Path_Name_Type;
      File_Use  : String);
   --  Create temporary file, fail with an error if it could not be created

   procedure Create_Mapping_File
     (Project  : Project_Id;
      Language : Name_Id;
      In_Tree  : Project_Tree_Ref;
      Name     : out Path_Name_Type);
   --  Create a temporary mapping file for project Project. For each source or
   --  template of Language in the Project, put the mapping of its file name
   --  and path name in this file. See fmap for a description of the format
   --  of the mapping file.
   --
   --  Implementation note: we pass a language name, not a language_index here,
   --  since the latter would have to match exactly the index of that language
   --  for the specified project, and that is not information available in
   --  buildgpr.adb.

   procedure Create_Config_Pragmas_File
     (For_Project : Project_Id;
      In_Tree     : Project_Tree_Ref);
   --  If we need SFN pragmas, either for non standard naming schemes or for
   --  individual units.

   procedure Create_New_Path_File
     (Shared    : Shared_Project_Tree_Data_Access;
      Path_FD   : out File_Descriptor;
      Path_Name : out Path_Name_Type);
   --  Create a new temporary path file, placing file name in Path_Name

   function Ada_Include_Path
     (Project   : Project_Id;
      In_Tree   : Project_Tree_Ref;
      Recursive : Boolean := False) return String;
   --  Get the source search path of a Project file. If Recursive it True, get
   --  all the source directories of the imported and modified project files
   --  (recursively). If Recursive is False, just get the path for the source
   --  directories of Project. Note: the resulting String may be empty if there
   --  is no source directory in the project file.

   function Ada_Objects_Path
     (Project             : Project_Id;
      In_Tree             : Project_Tree_Ref;
      Including_Libraries : Boolean := True) return String_Access;
   --  Get the ADA_OBJECTS_PATH of a Project file. For the first call with the
   --  exact same parameters, compute it and cache it. When Including_Libraries
   --  is True, the object directory of a library project is replaced with the
   --  library ALI directory of this project (usually the library directory of
   --  the project, except when attribute Library_ALI_Dir is declared) except
   --  when the library ALI directory does not contain any ALI file.

   procedure Set_Ada_Paths
     (Project             : Project_Id;
      In_Tree             : Project_Tree_Ref;
      Including_Libraries : Boolean;
      Include_Path        : Boolean := True;
      Objects_Path        : Boolean := True);
   --  Set the environment variables for additional project path files, after
   --  creating the path files if necessary.

   function File_Name_Of_Library_Unit_Body
     (Name              : String;
      Project           : Project_Id;
      In_Tree           : Project_Tree_Ref;
      Main_Project_Only : Boolean := True;
      Full_Path         : Boolean := False) return String;
   --  Returns the file name of a library unit, in canonical case. Name may or
   --  may not have an extension (corresponding to the naming scheme of the
   --  project). If there is no body with this name, but there is a spec, the
   --  name of the spec is returned.
   --
   --  If Full_Path is False (the default), the simple file name is returned.
   --  If Full_Path is True, the absolute path name is returned.
   --
   --  If neither a body nor a spec can be found, an empty string is returned.
   --  If Main_Project_Only is True, the unit must be an immediate source of
   --  Project. If it is False, it may be a source of one of its imported
   --  projects.

   function Project_Of
     (Name         : String;
      Main_Project : Project_Id;
      In_Tree      : Project_Tree_Ref) return Project_Id;
   --  Get the project of a source. The source file name may be truncated
   --  (".adb" or ".ads" may be missing). If the source is in a project being
   --  extended, return the ultimate extending project. If it is not a source
   --  of any project, return No_Project.

   procedure Get_Reference
     (Source_File_Name : String;
      In_Tree          : Project_Tree_Ref;
      Project          : out Project_Id;
      Path             : out Path_Name_Type);
   --  Returns the project of a source and its path in displayable form

   generic
      with procedure Action (Path : String);
   procedure For_All_Source_Dirs
     (Project : Project_Id;
      In_Tree : Project_Tree_Ref);
   --  Iterate through all the source directories of a project, including those
   --  of imported or modified projects. Only returns those directories that
   --  potentially contain Ada sources (ie ignore projects that have no Ada
   --  sources

   generic
      with procedure Action (Path : String);
   procedure For_All_Object_Dirs
     (Project : Project_Id;
      Tree    : Project_Tree_Ref);
   --  Iterate through all the object directories of a project, including those
   --  of imported or modified projects.

   ------------------
   -- Project Path --
   ------------------

   type Project_Search_Path is private;
   --  An abstraction of the project path. This object provides subprograms
   --  to search for projects on the path (and caches the results to improve
   --  efficiency).

   No_Project_Search_Path : constant Project_Search_Path;

   procedure Initialize_Default_Project_Path
     (Self        : in out Project_Search_Path;
      Target_Name : String);
   --  Initialize Self. It will then contain the default project path on the
   --  given target (including directories specified by the environment
   --  variables ADA_PROJECT_PATH and GPR_PROJECT_PATH). This does nothing if
   --  Self has already been initialized.

   procedure Copy (From : Project_Search_Path; To : out Project_Search_Path);
   --  Copy From into To

   procedure Initialize_Empty (Self : in out Project_Search_Path);
   --  Initialize self with an empty list of directories. If Self had already
   --  been set, it is reset.

   function Is_Initialized (Self : Project_Search_Path) return Boolean;
   --  Whether Self has been initialized

   procedure Free (Self : in out Project_Search_Path);
   --  Free the memory used by Self

   procedure Add_Directories
     (Self    : in out Project_Search_Path;
      Path    : String;
      Prepend : Boolean := False);
   --  Add one or more directories to the path. Directories added with this
   --  procedure are added in order after the current directory and before the
   --  path given by the environment variable GPR_PROJECT_PATH. A value of "-"
   --  will remove the default project directory from the project path.
   --
   --  Calls to this subprogram must be performed before the first call to
   --  Find_Project below, or PATH will be added at the end of the search path.

   procedure Get_Path (Self : Project_Search_Path; Path : out String_Access);
   --  Return the current value of the project path, either the value set
   --  during elaboration of the package or, if procedure Set_Project_Path has
   --  been called, the value set by the last call to Set_Project_Path. The
   --  returned value must not be modified.
   --  Self must have been initialized first.

   procedure Set_Path (Self : in out Project_Search_Path; Path : String);
   --  Override the value of the project path. This also removes the implicit
   --  default search directories.

   generic
      with function Check_Filename (Name : String) return Boolean;
   function Find_Name_In_Path
     (Self : Project_Search_Path;
      Path : String) return String_Access;
   --  Find a name in the project search path of Self. Check_Filename is
   --  the predicate to valid the search.  If Path is an absolute filename,
   --  simply calls the predicate with Path. Otherwise, calls the predicate
   --  for each component of the path. Stops as soon as the predicate
   --  returns True and returns the name, or returns null in case of failure.

   procedure Find_Project
     (Self               : in out Project_Search_Path;
      Project_File_Name  : String;
      Directory          : String;
      Path               : out Namet.Path_Name_Type);
   --  Search for a project with the given name either in Directory (which
   --  often will be the directory contain the project we are currently parsing
   --  and which we found a reference to another project), or in the project
   --  path Self. Self must have been initialized first.
   --
   --  Project_File_Name can optionally contain directories, and the extension
   --  (.gpr) for the file name is optional.
   --
   --  Returns No_Name if no such project was found

   function Get_Runtime_Path
     (Self : Project_Search_Path;
      Name : String) return String_Access;
   --  Compute the full path for the project-based runtime name.  It first
   --  checks that name is not a simple name (must has a path separator in it),
   --  and returns null in case of failure.  This check might be removed in the
   --  future.  The name is simply searched on the project path.

private
   package Projects_Paths is new GNAT.Dynamic_HTables.Simple_HTable
     (Header_Num => Header_Num,
      Element    => Path_Name_Type,
      No_Element => No_Path,
      Key        => Name_Id,
      Hash       => Hash,
      Equal      => "=");

   type Project_Search_Path is record
      Path : GNAT.OS_Lib.String_Access;
      --  As a special case, if the first character is '#:" or this variable
      --  is unset, this means that the PATH has not been fully initialized
      --  yet (although subprograms above will properly take care of that).

      Cache : Projects_Paths.Instance;
   end record;

   No_Project_Search_Path : constant Project_Search_Path :=
                              (Path  => null,
                               Cache => Projects_Paths.Nil);

end Prj.Env;