Andy Wingo <wi...@pobox.com> writes:
>> I fear that making 'default-prompt-tag' a parameter might slow things
>> down quite a bit on platforms with a slow implementation of thread local
>> storage.
>
> Not the case! It shouldn't depend on thread-local storage at all
> actually since the VM already has a handle on the current thread and
> dynamic state.
Ah yes, indeed that is true.
>> What's the anticipated use case for this?
>
> Parameterizing default prompts? It allows users to re-set the
> user/system process boundary for a dynamic extent.
Okay, makes sense. Sorry for the bother.
Thanks!
Mark
