Re: Issues with named-led and pcase inside iter-defun.

[Max Brieiev <max.brieiev@gmail.com>]

Michael Heerdegen <michael_heerdegen@web.de> writes:

> AFAIU you must avoid yielding from inside a lambda expression in
> the expanded code.

I see. The hard part is to know in advance what macros expand to lambda
expressions.

In pcase, probably some handlers expand to lambda, but some don't. So
iter-yield may work in some cases, but not in others.

In named-let, it probably should work when a recursive call happens in
tail position. In my code, though, it is always a tail call, and yet it
still fails sporadically.