Re: SBCL Fibers proposal

Ah.. I gotcha.  This is tricky.  I'm looking into it.

AG


On Sun, Mar 1, 2026 at 1:37 PM Michał "phoe" Herda <[email protected]> wrote:

> W dniu 2026-03-01 19:27, Anthony Green napisał(a):
>
> THROW to a tag not established within the fiber signals "tag does not
> exist", caught by the handler-case. RETURN-FROM and GO can't cross fiber
> boundaries.  They're lexically scoped (same constraint as threads).
>
>
> THROW is fully dynamically scoped, I see you're taking that into account.
>
> I'm talking about a case where - for whatever reason - the host thread
> closes over a TAGBODY tag or a BLOCK name, then winds itself further, and
> then executes the matching RETURN-FROM or GO closure within the context of
> a fiber running on the same thread. How does unwinding work in this case?
>

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