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{
***************************************************************************
* *
* 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 what unit A uses of unit B.
Usage:
findusedunitreferences filename line column
Filename is a unit.
Line, column is a unit within a uses section.
}
program FindUsedUnitReferences;
{$mode objfpc}{$H+}
uses
Classes, SysUtils,
// LazUtils
LazFileUtils,
// CodeTools
CodeCache, CodeToolManager,
usedunitrefs1;
const
ConfigFilename = 'codetools.config';
var
Code: TCodeBuffer;
Filename: String;
ListOfPCodeXYPosition: TFPList;
X: Integer;
Y: Integer;
UsedUnitFilename: string;
begin
if (ParamCount>=1) and (Paramcount<3) then begin
writeln('Usage:');
writeln(' ',ParamStr(0));
writeln(' ',ParamStr(0),' <filename> <X> <Y>');
Halt(1);
end;
CodeToolBoss.SimpleInit(ConfigFilename);
// Example: find all references to unit Math
Filename:=ExpandFileName('scanexamples/usedunitrefs1.pas');
X:=23;
Y:=8;
if (ParamCount>=3) then begin
Filename:=CleanAndExpandFilename(ParamStr(1));
X:=StrToInt(ParamStr(2));
Y:=StrToInt(ParamStr(3));
writeln('File: ',Filename,' Line=',Y,' Column=',X);
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 references
writeln('Filename: ',Code.Filename);
ListOfPCodeXYPosition:=nil;
try
if CodeToolBoss.FindUsedUnitReferences(Code,X,Y,false,UsedUnitFilename,
ListOfPCodeXYPosition) then
begin
writeln('List of ',UsedUnitFilename,':');
writeln(ListOfPCodeXYPositionToStr(ListOfPCodeXYPosition));
end else begin
writeln('CodeToolBoss.FindUsedUnitReferences failed: ',CodeToolBoss.ErrorMessage);
end;
finally
FreeListOfPCodeXYPosition(ListOfPCodeXYPosition);
end;
end.
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