Re: What is the difference between ‘cl-labels’ and ‘named-let’?

tpeplt <[email protected]> writes:

> The Emacs Lisp reference manual does not describe the
> difference between the new-ish (since Emacs 28) ‘named-let’
> and ‘cl-labels’ (other than the syntax, which allows
> ‘cl-labels’ to define many recursive local functions, while
> ‘named-let’ can only define one function per call).  Are
> these two different in some significant way?

I think Stefan will probably be the one to answer this in depth, so I'll
just skip this part of your question.


> Also, the Emacs Lisp reference manual describes ‘named-let’
> as a special form (like ‘if’), while its docstring describes
> it as a macro.  Is this an error in the reference manual?
>
>   (info "(elisp) Local Variables")

A very good remark (I think it is).

I want to add another one about the docstring:

| (named-let NAME BINDINGS &rest BODY)
| 
| Looping construct taken from Scheme.
| Like `let', bind variables in BINDINGS and then evaluate BODY,
| but with the twist that BODY can evaluate itself recursively by
| calling NAME,

Is it clear here that "calling" means "calling like a named function" - as
opposed to "funcall NAME"?  I had to look it up...


Michael.