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203 | ------------------------------------------------------------------------------
-- --
-- ASIS-for-GNAT IMPLEMENTATION COMPONENTS --
-- --
-- A S I S . D A T A _ D E C O M P O S I T I O N . G N A T R --
-- --
-- B o d y --
-- --
-- Copyright (C) 2019, Free Software Foundation, Inc. --
-- --
-- ASIS-for-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 --
-- Software Foundation; either version 2, or (at your option) any later --
-- version. ASIS-for-GNAT is distributed in the hope that it will be use- --
-- ful, but WITHOUT ANY WARRANTY; without even the implied warranty of MER- --
-- CHANTABILITY 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 ASIS-for-GNAT; see file --
-- COPYING. If not, write to the Free Software Foundation, 59 Temple Place --
-- - Suite 330, Boston, MA 02111-1307, USA. --
-- --
-- --
-- --
-- --
-- --
-- --
-- --
-- --
-- ASIS-for-GNAT was originally developed by the ASIS-for-GNAT team at the --
-- Software Engineering Laboratory of the Swiss Federal Institute of --
-- Technology (LGL-EPFL) in Lausanne, Switzerland, in cooperation with the --
-- Scientific Research Computer Center of Moscow State University (SRCC --
-- MSU), Russia, with funding partially provided by grants from the Swiss --
-- National Science Foundation and the Swiss Academy of Engineering --
-- Sciences. ASIS-for-GNAT is now maintained by AdaCore --
-- (http://www.adacore.com). --
-- --
------------------------------------------------------------------------------
with Ada.Characters.Handling; use Ada.Characters.Handling;
with Ada.Directories; use Ada.Directories;
with Ada.Text_IO; use Ada.Text_IO;
with GNAT.OS_Lib; use GNAT.OS_Lib;
with GNAT.Table;
with Asis.Compilation_Units; use Asis.Compilation_Units;
with Asis.Elements; use Asis.Elements;
with Asis.Extensions; use Asis.Extensions;
with Asis.Declarations; use Asis.Declarations;
with Repinfo.Input; use Repinfo.Input;
with A4G.Contt; use A4G.Contt;
package body Asis.Data_Decomposition.gnatRj is
Last_Read_Repinfo_File : String_Access;
package JSON_Buffer_Table is new GNAT.Table (
Table_Component_Type => Character,
Table_Index_Type => Text_Ptr,
Table_Low_Bound => 1,
Table_Initial => 2048,
Table_Increment => 100,
Table_Name => "JSON text buffer");
JSON_Buffer : JSON_Buffer_Table.Table_Ptr renames JSON_Buffer_Table.Table;
-----------------------
-- Local subprograms --
-----------------------
procedure Reset_Repinfo_File
(New_Repinfo_Fname : String;
Success : out Boolean);
-- Checks if the last readed repinfo file is the same as New_Repinfo_Fname.
-- If it is, sets Success ON and exits. Otherwise tries to read by calling
-- Repinfo.Input.Read_JSON_Stream) representation information from
-- New_Repinfo_Fname. (This procedure assumes that New_Repinfo_Fname is the
-- name of some existing file). If the attempt is successful, sets Success
-- ON and stores New_Repinfo_Fname as the name of the last file with
-- representation info that has been read in. Otherwise sets Success OFF
-- and sets the name of the last file with representation info that has
-- been read in to om empty value.
---------------------
-- Get_Entity_Name --
---------------------
function Get_Entity_Name (E : Asis.Element) return String is
Dcl : Asis.Element := E;
begin
while Element_Kind (Dcl) /= A_Declaration loop
Dcl := Enclosing_Element (Dcl);
end loop;
if Is_Nil (Enclosing_Element (Dcl)) then
-- Dcl is top-level declaration in a compilation unit
return To_String (Defining_Name_Image (First_Name (Dcl)));
else
return Get_Entity_Name (Enclosing_Element (Dcl)) & "." &
To_String (Defining_Name_Image (First_Name (Dcl)));
end if;
end Get_Entity_Name;
------------------------
-- Reset_Repinfo_File --
------------------------
procedure Reset_Repinfo_File
(New_Repinfo_Fname : String;
Success : out Boolean)
is
RF : File_Type;
Line_Buf : String (1 .. 2048);
Line_Len : Natural := 0;
-- Buffer to read next line from the file into
begin
Success := False;
if Last_Read_Repinfo_File /= null
and then
Last_Read_Repinfo_File.all = New_Repinfo_Fname
then
Success := True;
return;
end if;
Open (RF, In_File, New_Repinfo_Fname);
JSON_Buffer_Table.Init;
while not End_Of_File (RF) loop
Get_Line (RF, Line_Buf, Line_Len);
JSON_Buffer_Table.Append_All
(JSON_Buffer_Table.Table_Type (Line_Buf (1 .. Line_Len)));
end loop;
Read_JSON_Stream
(Text_Buffer (JSON_Buffer (1 .. JSON_Buffer_Table.Last)),
New_Repinfo_Fname);
Free (Last_Read_Repinfo_File);
Last_Read_Repinfo_File := new String'(New_Repinfo_Fname);
Success := True;
Close (RF);
exception
when others =>
Success := False;
Free (Last_Read_Repinfo_File);
end Reset_Repinfo_File;
----------------------
-- Set_Repinfo_File --
----------------------
procedure Set_Repinfo_File
(E : Asis.Element;
Success : out Boolean)
is
CU : Asis.Compilation_Unit;
CU_Name : String_Access;
Rep_File_Name : String_Access;
JSON_Suffix : constant String := ".json";
function Short_Source_Name
(CU : Asis.Compilation_Unit)
return String
is (Simple_Name (To_String (Text_Name (CU))));
begin
Success := False;
if Is_Nil (E) then
return;
end if;
CU := Enclosing_Compilation_Unit (E);
CU_Name := new String'(Short_Source_Name (CU));
Rep_File_Name := Locate_In_Search_Path
(C => Get_Current_Context,
File_Name => CU_Name.all & JSON_Suffix,
Dir_Kind => Rep);
if Rep_File_Name = null then
Success := False;
return;
end if;
Reset_Repinfo_File (Rep_File_Name.all, Success);
end Set_Repinfo_File;
end Asis.Data_Decomposition.gnatRj;
|