bug#64391: buffer narrowing slowdown regression in emacs 29

[Mattias Engdegård]

7 juli 2023 kl. 12.00 skrev Gregory Heytings <gregory@heytings.org>:

> Yes.  In fact now that we have a separate function for the labeled case, we 
> can remove the funcall in both cases.  Patch attached.

Thank you, but are we sure that save-restriction would be used for labelled 
restrictions in the future? Maybe we should just start with the unlabelled case.

>> The documentation should also make it clear that `nil` is not a valid label.
> 
> Is that not already clear in the docstring, which says "in which LABEL is a 
> symbol"?

Well, nil is a symbol.