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108 lines
3.6 KiB
ObjectPascal
108 lines
3.6 KiB
ObjectPascal
{
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***************************************************************************
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* *
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* This source is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This code is distributed in the hope that it will be useful, but *
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* WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
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* General Public License for more details. *
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* *
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* A copy of the GNU General Public License is available on the World *
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* Wide Web at <http://www.gnu.org/copyleft/gpl.html>. You can also *
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* obtain it by writing to the Free Software Foundation, *
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* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
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* *
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***************************************************************************
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Author: Mattias Gaertner
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Abstract:
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Demonstrating how to find all units using a unit.
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}
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program UsedByUnits;
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{$mode objfpc}{$H+}
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uses
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Classes, SysUtils, AVL_Tree, FileProcs, CodeGraph, CTUnitGraph,
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CodeToolManager;
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const
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ConfigFilename = 'codetools.config';
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var
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Filename: String;
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i: Integer;
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ExpFilename: String;
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UsesGraph: TUsesGraph;
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Complete: boolean;
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UsingUnits: TAVLTree;
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AVLNode: TAVLTreeNode;
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CurUnit: TUGUnit;
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procedure WriteUsage;
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begin
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writeln('Usage:');
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writeln(' ',ParamStr(0),' startunit1 <startunit2> ... targetunit');
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writeln;
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writeln('The startunit1 is the file name of a pasal source (e.g. a program)');
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writeln('There can be multiple start units.');
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writeln('The targetunit is the file name of a pascal unit which is used by');
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writeln('the result.');
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writeln('This tool parses recursively all uses sections. It ignores units,');
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writeln('which unit search path can not reach targetunit.');
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writeln('The result is a list of units that uses directly or indirectly');
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writeln('the targetunit.');
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writeln;
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writeln('Example:');
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writeln('./usedbyunits ../stdcodetools.pas ../fileprocs.pas');
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Halt;
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end;
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begin
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if (Paramcount<2) then
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WriteUsage;
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CodeToolBoss.SimpleInit(ConfigFilename);
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UsesGraph:=CodeToolBoss.CreateUsesGraph;
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UsingUnits:=nil;
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try
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for i:=1 to Paramcount do begin
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Filename:=ParamStr(i);
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if Filename='' then
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WriteUsage;
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ExpFilename:=TrimAndExpandFilename(Filename);
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if not FileExistsCached(ExpFilename) then begin
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writeln('file not found: ',Filename);
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Halt;
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end;
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if i<Paramcount then
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UsesGraph.AddStartUnit(ExpFilename)
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else
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UsesGraph.AddTargetUnit(ExpFilename);
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end;
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if not UsesGraph.Parse(true,Complete) then begin
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debugln('UsesGraph.Parse failed');
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end;
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UsingUnits:=UsesGraph.GetUnitsTreeUsingTargets;
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debugln(['Using units: ',UsingUnits.Count]);
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AVLNode:=UsingUnits.FindLowest;
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while AVLNode<>nil do begin
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CurUnit:=TUGUnit(AVLNode.Data);
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debugln('using unit: ',CurUnit.Filename);
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AVLNode:=UsingUnits.FindSuccessor(AVLNode);
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end;
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finally
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UsingUnits.Free;
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UsesGraph.Free;
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end;
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end.
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