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Warn about wrong number of args for subrs (Bug#35767)

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* lisp/emacs-lisp/bytecomp.el (byte-compile-callargs-warn): Don't
assume byte-compile-fdefinition will return non-nil.
* test/lisp/emacs-lisp/bytecomp-tests.el (bytecomp-warn-wrong-args)
(bytecomp-warn-wrong-args-subr): New tests.
This commit is contained in:
Noam Postavsky 2019-05-27 20:36:41 -04:00
parent 5f01af6c8e
commit 134edc1036
2 changed files with 15 additions and 1 deletions
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2
lisp/emacs-lisp/bytecomp.el
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@ -1379,7 +1379,7 @@ when printing the error message."
(defun byte-compile-callargs-warn (form)
(let* ((def (or (byte-compile-fdefinition (car form) nil)
(byte-compile-fdefinition (car form) t)))
(sig (byte-compile--function-signature def))
(sig (byte-compile--function-signature (or def (car form))))
(ncall (length (cdr form))))
;; Check many or unevalled from subr-arity.
(if (and (cdr-safe sig)