lazarus/ide/msgquickfixes.pas
2008-11-24 11:29:13 +00:00

463 lines
16 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:
Defines the standard message Quick Fix menu items.
}
unit MsgQuickFixes;
{$mode objfpc}{$H+}
interface
uses
Classes, SysUtils, LCLProc, Controls, Dialogs, FileUtil,
CodeAtom, CodeCache, CodeToolManager,
IDEMsgIntf, TextTools, ProjectIntf, LazIDEIntf,
AbstractsMethodsDlg, LazarusIDEStrConsts;
type
{ TQuickFixUnitNotFoundPosition }
TQuickFixUnitNotFoundPosition = class(TIDEMsgQuickFixItem)
public
constructor Create;
function IsApplicable(Line: TIDEMessageLine): boolean; override;
procedure Execute(const Msg: TIDEMessageLine; Step: TIMQuickFixStep); override;
end;
{ TQuickFixLinkerUndefinedReference }
TQuickFixLinkerUndefinedReference = class(TIDEMsgQuickFixItem)
public
constructor Create;
procedure Execute(const Msg: TIDEMessageLine; Step: TIMQuickFixStep); override;
end;
{ TQuickFixClassWithAbstractMethods
Quick fix for example:
Warning: Constructing a class "TClassA" with abstract methods }
TQuickFixClassWithAbstractMethods = class(TIDEMsgQuickFixItem)
public
constructor Create;
function IsApplicable(Line: TIDEMessageLine): boolean; override;
procedure Execute(const Msg: TIDEMessageLine; Step: TIMQuickFixStep); override;
end;
procedure QuickFixParameterNotUsed(Sender: TObject; Step: TIMQuickFixStep;
Msg: TIDEMessageLine);
procedure QuickFixUnitNotUsed(Sender: TObject; Step: TIMQuickFixStep;
Msg: TIDEMessageLine);
function GetMsgLineFilename(Msg: TIDEMessageLine;
out CodeBuf: TCodeBuffer): boolean;
procedure InitStandardIDEQuickFixItems;
procedure FreeStandardIDEQuickFixItems;
implementation
procedure QuickFixParameterNotUsed(Sender: TObject; Step: TIMQuickFixStep;
Msg: TIDEMessageLine);
begin
DebugLn('QuickFixParameterNotUsed ');
end;
procedure QuickFixUnitNotUsed(Sender: TObject; Step: TIMQuickFixStep;
Msg: TIDEMessageLine);
var
CodeBuf: TCodeBuffer;
UnneededUnitname: String;
OldChange: Boolean;
begin
if Step<>imqfoMenuItem then exit;
if not GetMsgLineFilename(Msg,CodeBuf) then exit;
if not REMatches(Msg.Msg,'Unit "([a-z_0-9]+)" not used','I') then begin
DebugLn('QuickFixUnitNotUsed invalid message ',Msg.Msg);
exit;
end;
UnneededUnitname:=REVar(1);
// remove unit
if not LazarusIDE.BeginCodeTools then exit;
OldChange:=LazarusIDE.OpenEditorsOnCodeToolChange;
LazarusIDE.OpenEditorsOnCodeToolChange:=true;
try
LazarusIDE.SaveSourceEditorChangesToCodeCache(-1);
if not CodeToolBoss.RemoveUnitFromAllUsesSections(CodeBuf,UnneededUnitname)
then begin
LazarusIDE.DoJumpToCodeToolBossError;
exit;
end;
finally
LazarusIDE.OpenEditorsOnCodeToolChange:=OldChange;
end;
// message fixed
Msg.Msg:='';
end;
function GetMsgLineFilename(Msg: TIDEMessageLine; out CodeBuf: TCodeBuffer
): boolean;
var
Filename: String;
TestDir: String;
begin
Result:=false;
CodeBuf:=nil;
if Msg.Parts=nil then begin
DebugLn('GetMsgLineFilename Msg.Parts=nil');
exit;
end;
Filename:=Msg.Parts.Values['Filename'];
TestDir:=LazarusIDE.GetTestBuildDirectory;
if (TestDir<>'') or (FileIsInDirectory(Filename,TestDir)) then
Filename:=ExtractFileName(Filename);
if not FilenameIsAbsolute(Filename) then
Filename:=AppendPathDelim(Msg.Directory)+Filename;
//DebugLn('GetMsgLineFilename Filename=',Filename,' ',Msg.Parts.Text);
CodeBuf:=CodeToolBoss.LoadFile(Filename,false,false);
if CodeBuf=nil then begin
DebugLn('GetMsgLineFilename Filename "',Filename,'" not found.');
exit;
end;
Result:=true;
end;
procedure InitStandardIDEQuickFixItems;
begin
IDEMsgQuickFixes:=TIDEMsgQuickFixItems.Create;
//RegisterIDEMsgQuickFix('Parameter xxx not used','Quick fix: Add dummy line',
// 'Parameter "[a-z_0-9]+" not used',nil,@QuickFixParameterNotUsed);
RegisterIDEMsgQuickFix('Unit xxx not used in yyy','Quick fix: Remove unit',
'Unit "[a-z_0-9]+" not used in [a-z_0-9]+',[imqfoMenuItem],
nil,@QuickFixUnitNotUsed);
RegisterIDEMsgQuickFix(TQuickFixUnitNotFoundPosition.Create);
RegisterIDEMsgQuickFix(TQuickFixLinkerUndefinedReference.Create);
RegisterIDEMsgQuickFix(TQuickFixClassWithAbstractMethods.Create);
end;
procedure FreeStandardIDEQuickFixItems;
begin
FreeThenNil(IDEMsgQuickFixes);
end;
{ TQuickFixUnitNotFoundPosition }
constructor TQuickFixUnitNotFoundPosition.Create;
begin
Name:='Improve error position of: Fatal: Can''t find unit xxx';
Steps:=[imqfoImproveMessage];
end;
function TQuickFixUnitNotFoundPosition.IsApplicable(Line: TIDEMessageLine
): boolean;
begin
Result:=(Line.Parts<>nil)
and (System.Pos(') Fatal: Can''t find unit ',Line.Msg)>0);
end;
procedure TQuickFixUnitNotFoundPosition.Execute(const Msg: TIDEMessageLine;
Step: TIMQuickFixStep);
var
CodeBuf: TCodeBuffer;
MissingUnitname: String;
NamePos, InPos: Integer;
Line, Col: Integer;
UsedByUnit: String;
NewFilename: String;
begin
if Step<>imqfoImproveMessage then exit;
//DebugLn('QuickFixUnitNotFoundPosition ');
if not GetMsgLineFilename(Msg,CodeBuf) then exit;
if not REMatches(Msg.Msg,'Can''t find unit ([a-z_0-9]+)','I') then begin
DebugLn('QuickFixUnitNotFoundPosition invalid message ',Msg.Msg);
exit;
end;
MissingUnitname:=REVar(1);
if REMatches(Msg.Msg,'Can''t find unit ([a-z_0-9]+) used by ([a-z_0-9]+)','I') then begin
UsedByUnit:=REVar(2);
if SysUtils.CompareText(UsedByUnit,ExtractFileNameOnly(CodeBuf.Filename))<>0 then
begin
// the message belongs to another unit
NewFilename:=LazarusIDE.FindUnitFile(UsedByUnit);
if NewFilename='' then begin
DebugLn('QuickFixUnitNotFoundPosition unit not found: ',UsedByUnit);
exit;
end;
CodeBuf:=CodeToolBoss.LoadFile(NewFilename,false,false);
if CodeBuf=nil then begin
DebugLn('QuickFixUnitNotFoundPosition unable to load unit: ',NewFilename);
exit;
end;
end;
end;
LazarusIDE.SaveSourceEditorChangesToCodeCache(-1);
if not CodeToolBoss.FindUnitInAllUsesSections(CodeBuf,MissingUnitname,
NamePos,InPos)
then begin
DebugLn('QuickFixUnitNotFoundPosition failed due to syntax errors or '+MissingUnitname+' is not used in '+CodeBuf.Filename);
exit;
end;
if InPos=0 then ;
CodeBuf.AbsoluteToLineCol(NamePos,Line,Col);
if (Line>0) and (Col>0) then begin
//DebugLn('QuickFixUnitNotFoundPosition Line=',dbgs(Line),' Col=',dbgs(Col));
NewFilename:=CodeBuf.Filename;
if (Msg.Directory<>'') and (FilenameIsAbsolute(Msg.Directory)) then
NewFilename:=CreateRelativePath(NewFilename,Msg.Directory);
Msg.SetSourcePosition(NewFilename,Line,Col);
end;
end;
{ TQuickFixLinkerUndefinedReference }
constructor TQuickFixLinkerUndefinedReference.Create;
begin
Name:='Linker: undefined reference to';
Steps:=[imqfoJump];
RegExpression:='^((.*:[0-9]+)?: .* `(.*)'')|((.*)\(\.text.*?\): .* `([A-Z0-9_$]+)'':)$';
end;
procedure TQuickFixLinkerUndefinedReference.Execute(const Msg: TIDEMessageLine;
Step: TIMQuickFixStep);
{ Examples:
/usr/lib/fpc/2.1.1/units/i386-linux/gtk2/gtk2.o(.text+0xbba1): In function `GTK2_GTK_TYPE_CELL_RENDERER_COMBO$$LONGWORD':
: undefined reference to `gtk_cell_renderer_combo_get_type'
unit1.o(.text+0x1a): In function `SubProc':
unit1.pas:37: undefined reference to `DoesNotExist'
unit1.o(.text+0x3a):unit1.pas:48: undefined reference to `DoesNotExist'
}
procedure Error(const Msg: string);
begin
DebugLn('TQuickFixLinkerUndefinedReference.Execute ',Msg);
MessageDlg('TQuickFixLinkerUndefinedReference.Execute',
Msg,mtError,[mbCancel],0);
end;
procedure JumpTo(Line1, Line2: TIDEMessageLine);
var
Identifier: String;
Filename: String;
MangledFunction: String;
CurProject: TLazProject;
CodeBuf: TCodeBuffer;
NewCode: TCodeBuffer;
NewX, NewY, NewTopLine: integer;
AnUnitName: String;
SourceFilename: String;
SourceLine: Integer;
begin
DebugLn(['TQuickFixLinkerUndefinedReference.JumpTo START ',Line1.Msg]);
Filename:='';
MangledFunction:='';
Identifier:='';
SourceFilename:='';
SourceLine:=0;
if REMatches(Line1.Msg,'^(.*)\(\.text.*?\): .* `([a-zA-Z0-9_$]+)'':$') then
begin
// example: unit1.o(.text+0x1a): In function `SubProc':
Filename:=REVar(1);
MangledFunction:=REVar(2);
if (Line2<>nil) and REMatches(Line2.Msg,'^: .* `(.*)''$') then begin
// example: ": undefined reference to `gtk_cell_renderer_combo_get_type'"
Identifier:=REVar(1);
end else if (Line2<>nil)
and REMatches(Line2.Msg,'^(.*):([0-9]+): .* `(.*)''$') then begin
// example: unit1.pas:37: undefined reference to `DoesNotExist'
SourceFilename:=REVar(1);
SourceLine:=StrToIntDef(REVar(2),0);
Identifier:=REVar(3);
end else begin
DebugLn('TQuickFixLinkerUndefinedReference.JumpTo Line2 does not match: "',Line2.Msg,'"');
exit;
end;
end
else if REMatches(Line1.Msg,'^(.*)\(\.text.*?\):(.*):([0-9]*): .* `([a-zA-Z0-9_$]+)'':$')
then begin
// example: unit1.o(.text+0x3a):unit1.pas:48: undefined reference to `DoesNotExist'
Filename:=REVar(1);
SourceFilename:=REVar(2);
SourceLine:=StrToIntDef(REVar(3),0);
Identifier:=REVar(4);
end
else if REMatches(Line1.Msg,'^(.*):([0-9]+): .* `([a-zA-Z0-9_$]+)''$') then begin
// example: unit1.pas:48: undefined reference to `DoesNotExist'
Filename:=REVar(1);
SourceFilename:=Filename;
SourceLine:=StrToIntDef(REVar(2),0);
Identifier:=REVar(3);
end else begin
DebugLn('JumpTo Line1 does not match: "',Line1.Msg,'"');
exit;
end;
DebugLn(['TQuickFixLinkerUndefinedReference.JumpTo Filename="',Filename,'" MangledFunction="',MangledFunction,'" Identifier="',Identifier,'" SourceFilename="',SourceFilename,'" SourceLine=',SourceLine]);
CurProject:=LazarusIDE.ActiveProject;
if CurProject=nil then begin
Error('no project');
exit;
end;
if (CurProject.MainFile=nil) then begin
Error('no main file in project');
exit;
end;
if (CurProject.MainFile=nil) then begin
Error('no main file in project');
exit;
end;
CodeBuf:=CodeToolBoss.LoadFile(CurProject.MainFile.Filename,true,false);
if (CodeBuf=nil) then begin
Error('project main file has no source');
exit;
end;
AnUnitName:=ExtractFilenameOnly(Filename);
CodeBuf:=CodeToolBoss.FindUnitSource(CodeBuf,AnUnitName,'');
if (CodeBuf=nil) then begin
Error('unit not found: '+AnUnitName);
exit;
end;
if not CodeToolBoss.JumpToLinkerIdentifier(CodeBuf,
SourceFilename,SourceLine,MangledFunction,Identifier,
NewCode,NewX,NewY,NewTopLine)
then begin
if CodeToolBoss.ErrorCode<>nil then
LazarusIDE.DoJumpToCodeToolBossError
else
Error('function not found: '+MangledFunction+' Identifier='+Identifier);
exit;
end;
LazarusIDE.DoOpenFileAndJumpToPos(NewCode.Filename,Point(NewX,NewY),
NewTopLine,-1,[]);
end;
begin
inherited Execute(Msg, Step);
if Step=imqfoJump then begin
//DebugLn(['TQuickFixLinkerUndefinedReference.Execute ',Msg.Msg]);
if REMatches(Msg.Msg,'^(.*)\(\.text.*?\):.*:([0-9]+): .* `([a-zA-Z0-9_$]+)''$') then
// example: unit1.o(.text+0x3a):unit1.pas:48: undefined reference to `DoesNotExist'
JumpTo(Msg,nil)
else if (Msg.Position>0) and REMatches(Msg.Msg,'^(.*:[0-9]+)?: .* `(.*)''$') then
// example: unit1.pas:37: undefined reference to `DoesNotExist'
JumpTo(IDEMessagesWindow[Msg.Position-1],Msg)
else if (Msg.Position<IDEMessagesWindow.LinesCount-1)
and REMatches(Msg.Msg,'^(.*)\(\.text.*?\): .* `([a-zA-Z0-9_$]+)'':$') then
// example: unit1.o(.text+0x1a): In function `SubProc':
JumpTo(Msg,IDEMessagesWindow[Msg.Position+1]);
end;
end;
{ TQuickFixClassWithAbstractMethods }
constructor TQuickFixClassWithAbstractMethods.Create;
begin
Name:='Show abstract methods';
Steps:=[imqfoMenuItem];
end;
function TQuickFixClassWithAbstractMethods.IsApplicable(Line: TIDEMessageLine
): boolean;
begin
Result:=(Line.Parts<>nil)
and (System.Pos(') Warning: Constructing a class "',Line.Msg)>0)
and (System.Pos('" with abstract methods',Line.Msg)>0);
end;
procedure TQuickFixClassWithAbstractMethods.Execute(const Msg: TIDEMessageLine;
Step: TIMQuickFixStep);
var
CodeBuf: TCodeBuffer;
Caret: TPoint;
Filename: string;
NewCode: TCodeBuffer;
NewX,NewY,NewTopLine: Integer;
Tool: TCodeTool;
CurClassName: String;
begin
if Step=imqfoMenuItem then begin
DebugLn(['TQuickFixClassWithAbstractMethods.Execute ']);
// get source position
// (FPC reports position right after the constructor call
// for example right after TStrings.Create)
if not GetMsgLineFilename(Msg,CodeBuf) then exit;
Msg.GetSourcePosition(Filename,Caret.Y,Caret.X);
if not LazarusIDE.BeginCodeTools then begin
DebugLn(['TQuickFixClassWithAbstractMethods.Execute failed because IDE busy']);
exit;
end;
// get class name
if not REMatches(Msg.Msg,'Warning: Constructing a class "([a-z_0-9]+)"','I') then begin
DebugLn('QuickFixClassWithAbstractMethods invalid message ',Msg.Msg);
exit;
end;
CurClassName:=REVar(1);
DebugLn(['TQuickFixClassWithAbstractMethods.Execute Class=',CurClassName]);
// find the class
// build the tree
CodeToolBoss.Explore(CodeBuf,Tool,false,true);
if Tool=nil then begin
DebugLn(['TQuickFixClassWithAbstractMethods.Execute no tool for ',CodeBuf.Filename]);
exit;
end;
if not CodeToolBoss.FindDeclarationOfIdentifier(CodeBuf,Caret.X,Caret.Y,
@CurClassName[1],NewCode,NewX,NewY,NewTopLine)
then begin
if CodeToolBoss.ErrorMessage<>'' then begin
LazarusIDE.DoJumpToCodeToolBossError
end else begin
MessageDlg('Class not found',
'Class '+CurClassName+' not found at '
+CodeBuf.Filename+'('+IntToStr(Caret.Y)+','+IntToStr(Caret.X)+')',
mtError,[mbCancel],0);
end;
exit;
end;
DebugLn(['TQuickFixClassWithAbstractMethods.Execute Declaration at ',NewCode.Filename,' ',NewX,',',NewY]);
if LazarusIDE.DoOpenFileAndJumpToPos(NewCode.Filename,
Point(NewX,NewY),NewTopLine,-1,[])<>mrOk
then begin
DebugLn(['TQuickFixClassWithAbstractMethods.Execute failed opening ',NewCode.Filename]);
exit;
end;
ShowAbstractMethodsDialog;
end;
end;
end.