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* lisp/emacs-lisp/cl-macs.el (cl--loop-let): Avoid `nil' as var name.

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This commit is contained in:
Stefan Monnier 2014-04-21 17:18:12 -04:00
parent 505fa2ab43
commit 622eef687c
3 changed files with 13 additions and 4 deletions
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6
lisp/emacs-lisp/cl-macs.el
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@ -1542,12 +1542,14 @@ If BODY is `setq', then use SPECS for assignments rather than for bindings."
(if (and (cl--unused-var-p temp) (null expr))
nil ;; Don't bother declaring/setting `temp' since it won't
;; be used when `expr' is nil, anyway.
(when (and (eq body 'setq) (cl--unused-var-p temp))
(when (or (null temp)
(and (eq body 'setq) (cl--unused-var-p temp)))
;; Prefer a fresh uninterned symbol over "_to", to avoid
;; warnings that we set an unused variable.
(setq temp (make-symbol "--cl-var--"))
;; Make sure this temp variable is locally declared.
(push (list (list temp)) cl--loop-bindings))
(when (eq body 'setq)
(push (list (list temp)) cl--loop-bindings)))
(push (list temp expr) new))
(while (consp spec)
(push (list (pop spec)