mirror of
https://gitlab.com/freepascal.org/lazarus/lazarus.git
synced 2025-05-02 23:43:40 +02:00
124 lines
4.3 KiB
ObjectPascal
124 lines
4.3 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 FindDeclaration;
|
|
|
|
{$mode objfpc}{$H+}
|
|
|
|
uses
|
|
SysUtils, CodeCache, CodeToolManager, CodeToolsConfig, LazFileUtils,
|
|
SimpleUnit1;
|
|
|
|
const
|
|
ConfigFilename = 'codetools.config';
|
|
var
|
|
Options: TCodeToolsOptions;
|
|
NewCode: TCodeBuffer;
|
|
NewX, NewY, NewTopLine: integer;
|
|
Code: TCodeBuffer;
|
|
X: Integer;
|
|
Y, BlockTopLine, BlockBottomLine: Integer;
|
|
Filename: String;
|
|
Line: String;
|
|
begin
|
|
if (ParamCount>=1) and (Paramcount<3) then begin
|
|
writeln('Usage:');
|
|
writeln(' ',ParamStr(0));
|
|
writeln(' ',ParamStr(0),' <filename> <X> <Y>');
|
|
Halt(1);
|
|
end;
|
|
|
|
// setup the Options
|
|
Options:=TCodeToolsOptions.Create;
|
|
try
|
|
// setup your paths
|
|
writeln('Config=',ConfigFilename);
|
|
if FileExists(ConfigFilename) then begin
|
|
// To not parse the FPC sources every time, the options are saved to a file.
|
|
Options.LoadFromFile(ConfigFilename);
|
|
end;
|
|
Options.InitWithEnvironmentVariables;
|
|
if Options.FPCSrcDir='' then
|
|
Options.FPCSrcDir:=ExpandFileName('~/freepascal/fpc');
|
|
if Options.LazarusSrcDir='' then
|
|
Options.LazarusSrcDir:=ExpandFileName('~/pascal/lazarus');
|
|
|
|
// optional: ProjectDir and TestPascalFile exists only to easily test some
|
|
// things.
|
|
Options.ProjectDir:=SetDirSeparators(GetCurrentDir+'/scanexamples/');
|
|
Filename:=Options.ProjectDir+'simpleunit1.pas';
|
|
|
|
// init the codetools
|
|
writeln('Scanning FPC sources may take a while ...');
|
|
CodeToolBoss.Init(Options);
|
|
|
|
// save the options and the FPC unit links results.
|
|
Options.SaveToFile(ConfigFilename);
|
|
|
|
// Example: find declaration of 'TObject'
|
|
X:=5;
|
|
Y:=43;
|
|
|
|
writeln('FPCDIR=',Options.FPCSrcDir);
|
|
writeln('PP=',Options.FPCPath);
|
|
writeln('LAZARUSDIR=',Options.LazarusSrcDir);
|
|
writeln('FPCTARGET=',Options.TargetOS);
|
|
writeln('FPCTARGETCPU=',Options.TargetProcessor);
|
|
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);
|
|
|
|
Line:=Code.GetLine(Y-1);
|
|
writeln('Line ',Y,': ',copy(Line,1,X-1),'|',copy(Line,X,length(Line)));
|
|
|
|
// Step 2: find declaration
|
|
if CodeToolBoss.FindDeclaration(Code,X,Y,NewCode,NewX,NewY,NewTopLine,
|
|
BlockTopLine,BlockBottomLine) then
|
|
begin
|
|
writeln('Declaration found: ',NewCode.Filename,' Line=',NewY,' Column=',NewX);
|
|
end else begin
|
|
if CodeToolBoss.ErrorMessage<>'' then
|
|
writeln('Parse error: ',CodeToolBoss.ErrorMessage)
|
|
else
|
|
writeln('Declaration not found');
|
|
end;
|
|
except
|
|
on E: Exception do begin
|
|
writeln('Error: ',E.Message);
|
|
end;
|
|
end;
|
|
Options.Free;
|
|
end.
|
|
|