lazarus/components/codetools/examples/findunusedunits.lpr

72 lines
2.5 KiB
ObjectPascal

{
***************************************************************************
* *
* 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. *
* *
***************************************************************************
Author: Mattias Gaertner
Abstract:
Simple demonstrating, how to setup the codetools, FPC and Lazarus Source
directory to find a declaration.
}
program FindUnusedUnits;
{$mode objfpc}{$H+}
uses
Classes, SysUtils, CodeCache, CodeToolManager,
SimpleUnit1;
const
ConfigFilename = 'codetools.config';
var
Code: TCodeBuffer;
Filename: String;
Units: TStringList;
begin
if (ParamCount>=1) and (Paramcount<3) then begin
writeln('Usage:');
writeln(' ',ParamStr(0));
writeln(' ',ParamStr(0),' <filename>');
end;
CodeToolBoss.SimpleInit(ConfigFilename);
Filename:=ExpandFileName('scanexamples/unusedunits1.pas');
if (ParamCount>=1) then begin
Filename:=ExpandFileName(ParamStr(1));
end;
// Step 1: load the file
Code:=CodeToolBoss.LoadFile(Filename,false,false);
if Code=nil then
raise Exception.Create('loading failed '+Filename);
// Step 2: find declaration
writeln('Filename: ',Code.Filename);
Units:=TStringList.Create;
if CodeToolBoss.FindUnusedUnits(Code,Units) then
begin
writeln(Units.Text);
end else begin
writeln('CodeToolBoss.FindUnusedUnits failed: ',CodeToolBoss.ErrorMessage);
end;
Units.Free;
end.