{ Copyright (C) 2005 Mattias Gaertner

 ***************************************************************************
 *                                                                         *
 *   This source is free software; you can redistribute it and/or modify   *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 *   This code is distributed in the hope that it will be useful, but      *
 *   WITHOUT ANY WARRANTY; without even the implied warranty of            *
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU     *
 *   General Public License for more details.                              *
 *                                                                         *
 *   A copy of the GNU General Public License is available on the World    *
 *   Wide Web at <http://www.gnu.org/copyleft/gpl.html>. You can also      *
 *   obtain it by writing to the Free Software Foundation,                 *
 *   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.        *
 *                                                                         *
 ***************************************************************************

  Abstract:
    Example, how to setup the codetools, load a pascal unit and list of classes
    defined in the interface.
}
program ListInterfaceClasses;

{$mode objfpc}{$H+}

uses
  Classes, SysUtils, CodeToolManager, CodeCache, CustomCodeTool, CodeTree,
  FileProcs;
  
var
  ExpandedFilename: String;
  CodeBuf: TCodeBuffer;
  Tool: TCodeTool;
  CurClassName: String;
  Node: TCodeTreeNode;
begin
  ExpandedFilename:=ExpandFileNameUTF8('scanexamples/simpleunit1.pas');
  CodeBuf:=CodeToolBoss.LoadFile(ExpandedFilename,true,false);
  if CodeBuf=nil then
    raise Exception.Create('failed loading '+ExpandedFilename);
  if not CodeToolBoss.Explore(CodeBuf,Tool,false,true) then begin
    writeln('error in code');
    exit;
  end;
  Node:=Tool.Tree.Root;
  while (Node<>nil) do begin
    if (Node.Desc in AllClassObjects)
    and ((Node.SubDesc and ctnsForwardDeclaration)=0) then begin
      CurClassName:=Tool.ExtractClassName(Node,false);
      writeln(CurClassName);
    end
    else if Node.Desc=ctnImplementation then
      break;
    Node:=Node.Next;
  end
end.