On 2014-03-22 22:34, hinsta...@yandex.ru wrote:
What you do this for? Using override directive makes no sense in this case, so
I suggest you just don't use it. If you don't use it, the descendant enumerator
will still work like intended
I Think override makes perfect sense in this case.
I get to only implement the GetCurrent procedure once, the example is
simplified but in my real-world application it does some additional
structure checking, and in all derived classes i get to call the
ancestor method but return an object of the type i need.
If I could not override the code for GetCurrent the following
forBar inBarList do
Bar.Val2:=1;
would not be able to know the Bar is a TBar, but would rather see Bar as
a pointer (since in this case it inherits from TList). And all
subsequent code would have to do some sort of typecasting.
I hope that makes a little bit of sense...
Regards,
Torsten.
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