On Mon, Jun 28, 2010 at 12:42 PM, Sven Van Caekenberghe <sven at beta9.be> wrote:
> I think on: Error do: [ ] and on: Error do: [ nil ] are the same.

I believe that is not necessarily the case if you're writing portably.
I can't quite recall where the issue comes up, but I remember learning
that you cannot count on the value of an empty block.

Also, in reference to your comment about niladic on:do: blocks, some
platforms do not support that. If you are writing portable code, you
must use a monadic block.

on: Error do: [ :error | nil ]

Julian