Error when loading smartparens

[joca-bt]

Getting this error when loading smartparens after pulling the latest code: Eager macro-expansion failure: (wrong-type-argument listp [(first-item . rest-items) (sp-get-list-items)]).

[manuel-uberti]

I am seeing this too. From emacs -Q, installing and enabling smartparens-global-mode triggers the above mentioned error.

[bymoz089]

I have the same issue, but this seems to be a simple typo.

To fix it replace [ with ( and
] with )
on line 8386 in file smartparens.el

Line 8386 should then look like:

(-when-let ((first-item . rest-items) (sp-get-list-items))

[manuel-uberti]

@bymoz089 isn't when-let already available in subr-x.el? On my Emacs I get this:

when-let is an autoloaded Lisp macro in ‘subr-x.el’.

(when-let SPEC &rest BODY)

  Probably introduced at or before Emacs version 25.1.

[bymoz089]

@manuel-uberti IMO when-let is no drop in replacement for -when-let. -when-let can destructure the argument list. Here is a video which explains some aspect of this topic.

Try to eval following two code fragments in your Emacs scratch buffer.

(when-let ((first-item . rest-items) '(foo bar baz))
  (message (format "%s | %s" first-item rest-items)))

(-when-let ((first-item . rest-items) '(foo bar baz))
  (message (format "%s | %s" first-item rest-items)))

But I think this goes out of topic of this issue.

[manuel-uberti]

Thanks for the clarification.

[mkaschenko]

The message disappears when I comment (require 'smartparens-config) line within my init.el file. Replacing [] via () also helps https://github.com/Fuco1/smartparens/issues/1077#issuecomment-779349052.

[duianto]

There's a PR pending with a fix: Fix #1077 #1079

[mambolevis]

The melpa version still has this problem: Loading package smartparens... Eager macro-expansion failure: (wrong-type-argument listp [(first-item . rest-items) (sp-get-list-items)])