paweld/lazarus
1
0
Fork 0
mirror of https://gitlab.com/freepascal.org/lazarus/lazarus.git synced 2025-08-10 18:17:18 +02:00
Code Issues Packages Projects Releases Wiki Activity

codetools: added example how to insert a class behind a uses section

Browse Source 
git-svn-id: trunk@11085 -
This commit is contained in:
mattias 2007-05-05 16:28:59 +00:00
parent 0d2a3b970c
commit 0684e89b83
3 changed files with 157 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
.gitattributes vendored
View File

@ -72,6 +72,8 @@ components/codetools/customcodetool.pas svneol=native#text/pascal
components/codetools/definetemplates.pas svneol=native#text/pascal
components/codetools/directorycacher.pas svneol=native#text/plain
components/codetools/eventcodetool.pas svneol=native#text/pascal
components/codetools/examples/addclass.lpi svneol=native#text/plain
components/codetools/examples/addclass.lpr svneol=native#text/plain
components/codetools/examples/addeventmethod.lpi svneol=native#text/plain
components/codetools/examples/addeventmethod.lpr svneol=native#text/plain
components/codetools/examples/addmethod.lpi svneol=native#text/plain

66
components/codetools/examples/addclass.lpi Normal file
View File

@ -0,0 +1,66 @@
<?xml version="1.0"?>
<CONFIG>
<ProjectOptions>
<PathDelim Value="/"/>
<Version Value="5"/>
<General>
<Flags>
<MainUnitHasCreateFormStatements Value="False"/>
<MainUnitHasTitleStatement Value="False"/>
</Flags>
<SessionStorage Value="InProjectDir"/>
<MainUnit Value="0"/>
<IconPath Value="./"/>
<TargetFileExt Value=""/>
<Title Value="AddClass"/>
</General>
<PublishOptions>
<Version Value="2"/>
<IncludeFileFilter Value="*.(pas|pp|inc|lfm|lpr|lrs|lpi|lpk|sh|xml)"/>
<ExcludeFileFilter Value="*.(bak|ppu|ppw|o|so);*~;backup"/>
</PublishOptions>
<RunParams>
<local>
<FormatVersion Value="1"/>
<LaunchingApplication PathPlusParams="/usr/X11R6/bin/xterm -T 'Lazarus Run Output' -e $(LazarusDir)/tools/runwait.sh $(TargetCmdLine)"/>
</local>
</RunParams>
<RequiredPackages Count="2">
<Item1>
<PackageName Value="LCL"/>
</Item1>
<Item2>
<PackageName Value="CodeTools"/>
</Item2>
</RequiredPackages>
<Units Count="3">
<Unit0>
<Filename Value="addclass.lpr"/>
<IsPartOfProject Value="True"/>
<UnitName Value="AddClass"/>
</Unit0>
<Unit1>
<Filename Value="scanexamples/simpleunit1.pas"/>
<IsPartOfProject Value="True"/>
<UnitName Value="SimpleUnit1"/>
</Unit1>
<Unit2>
<Filename Value="scanexamples/addeventexample.pas"/>
<IsPartOfProject Value="True"/>
<UnitName Value="AddEventExample"/>
</Unit2>
</Units>
</ProjectOptions>
<CompilerOptions>
<Version Value="5"/>
<SearchPaths>
<OtherUnitFiles Value="scanexamples/"/>
</SearchPaths>
<CodeGeneration>
<Generate Value="Faster"/>
</CodeGeneration>
<Other>
<CompilerPath Value="$(CompPath)"/>
</Other>
</CompilerOptions>
</CONFIG>

89
components/codetools/examples/addclass.lpr Normal file
View File

@ -0,0 +1,89 @@
{
***************************************************************************
* *
* 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:
Demonstrating, how to add a method to a class and extending the uses section.
}
program AddClass;
{$mode objfpc}{$H+}
uses
Classes, SysUtils, CodeCache, CodeToolManager, SimpleUnit1, FileProcs,
BasicCodeTools, SourceChanger, CodeToolsConfig, CodeCompletionTool, CodeTree;
var
Filename: string;
Code: TCodeBuffer;
Tool: TCodeTool;
UsesSection: TCodeTreeNode;
InsertPos: LongInt;
Indent: LongInt;
ClassSrc: String;
SourceChangeCache: TSourceChangeCache;
i: Integer;
begin
// load the file
Filename:=ExpandFileName(SetDirSeparators('scanexamples/simpleunit1.pas'));
Code:=CodeToolBoss.LoadFile(Filename,false,false);
if Code=nil then
raise Exception.Create('loading failed '+Filename);
// Example: add a new class right after the uses section.
ClassSrc:='type'+LineEnding
+' TNewClass = class'+LineEnding
+' end;';
// parse the unit
if not CodeToolBoss.Explore(Code,Tool,false,true) then begin
raise Exception.Create('parser error');
end;
SourceChangeCache:=CodeToolBoss.SourceChangeCache;
// find a nice insert position (behind the uses section)
UsesSection:=Tool.FindMainUsesSection(false);
InsertPos:=UsesSection.EndPos;
// use the same indentation as the start of the uses section
Indent:=GetLineIndent(Tool.Src,UsesSection.StartPos);
ClassSrc:=SourceChangeCache.BeautifyCodeOptions.BeautifyStatement(
ClassSrc,Indent);
// init the SourceChangeCache
SourceChangeCache.MainScanner:=Tool.Scanner;
if not SourceChangeCache.Replace(gtEmptyLine,gtEmptyLine,InsertPos,InsertPos,
ClassSrc)
then
raise Exception.Create('unable to insert there (maybe the InsertPos does not exist?)');
// write the changed files
writeln('The following files will be modified:');
for i:=0 to SourceChangeCache.BuffersToModifyCount-1 do
writeln(SourceChangeCache.BuffersToModify[i].Filename);
// modify the files
if not SourceChangeCache.Apply then
raise Exception.Create('unable to apply changes (maybe a file is readonly?)');
// write the new source:
writeln('-----------------------------------');
writeln('New source:');
writeln(Code.Source);
writeln('-----------------------------------');
end.