diff options
Diffstat (limited to 'lisp/emacs-lisp/byte-opt.el')
-rw-r--r-- | lisp/emacs-lisp/byte-opt.el | 13 |
1 files changed, 6 insertions, 7 deletions
diff --git a/lisp/emacs-lisp/byte-opt.el b/lisp/emacs-lisp/byte-opt.el index 0ae4c452c73..3c7aeb89525 100644 --- a/lisp/emacs-lisp/byte-opt.el +++ b/lisp/emacs-lisp/byte-opt.el @@ -439,13 +439,12 @@ for speeding up processing.") (byte-optimize-body (cdr clause) for-effect)))) clauses))) - ;; `unwind-protect' is a special form which here takes the shape - ;; (unwind-protect EXPR :fun-body UNWIND-FUN). - ;; We can treat it as if it were a plain function at this point, - ;; although there are specific optimizations possible. - ;; In particular, the return value of UNWIND-FUN is never used - ;; so its body should really be compiled for-effect, but we - ;; don't do that right now. + (`(unwind-protect ,protected-expr :fun-body ,unwind-fun) + ;; FIXME: The return value of UNWIND-FUN is never used so we + ;; could potentially optimise it for-effect, but we don't do + ;; that right no. + `(,fn ,(byte-optimize-form protected-expr for-effect) + :fun-body ,(byte-optimize-form unwind-fun))) (`(catch ,tag . ,exps) `(,fn ,(byte-optimize-form tag nil) |