{ the extended type is searched first for a inherited method even if it's defined as "override" } program tchlp42; {$ifdef fpc} {$mode delphi} {$endif} {$apptype console} type TTest = class function Test(aRecurse: Boolean): Integer; virtual; end; TObjectHelper = class helper for TObject function Test(aRecurse: Boolean): Integer; virtual; end; TTestHelper = class helper(TObjectHelper) for TTest function Test(aRecurse: Boolean): Integer; override; end; function TTest.Test(aRecurse: Boolean): Integer; begin Result := 1; end; function TObjectHelper.Test(aRecurse: Boolean): Integer; begin Result := 2; end; function TTestHelper.Test(aRecurse: Boolean): Integer; begin if aRecurse then Result := inherited Test(False) else Result := 3; end; var t: TTest; res: Integer; begin t := TTest.Create; res := t.Test(True); Writeln('t.Test: ', res); if res <> 1 then Halt(1); Writeln('ok'); end.