Idle Musings of a Delphi Junkie

I just discovered today that it's possible to declare a method with parameters in the interface section of a class without needing to declare the parameters in the implementation section. For example, the following code compiles just fine in Delphi 5 :-

program Yuck;
{$APPTYPE CONSOLE}
type
  TSomeClass = class(TObject)
  public
    procedure SomeProc(ASomeParam: string);
  end;

procedure TSomeClass.SomeProc;
begin
  WriteLn(ASomeParam);
end;

var
  lSomeClass: TSomeClass;
begin
  lSomeClass := TSomeClass.Create;
  try
    lSomeClass.SomeProc('This is just wrong');
  finally
    lSomeClass.Free;
  end;
end.

I would hate to maintain code that uses this technique!