GNU logs - #20457, boring messages

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Subject: bug#20457: compiler does not warn about arglist mismatch with obsolete alias
Resent-From: Glenn Morris <rgm@HIDDEN>
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Resent-Date: Wed, 29 Apr 2015 07:09:01 +0000
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From: Glenn Morris <rgm@HIDDEN>
Date: Wed, 29 Apr 2015 03:08:15 -0400
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Package: emacs
Version: 24.5

Byte-compiling the following:
    
    (defun newfunc ()
      t)
    
    (eval-and-compile
      (define-obsolete-function-alias 'oldfunc 'newfunc "25.1"))
    
    (defun blah ()
      (oldfunc t))

warns about oldfunc being obsolete:
  
  In blah:
  foo.el:6:8:Warning: `oldfunc' is an obsolete function (as of 25.1); use
      `newfunc' instead.

however, it says nothing about blah calling oldfunc with the wrong
number of arguments, which leads to a runtime error.

Message sent to bug-gnu-emacs@HIDDEN:

Subject: bug#20457: compiler does not warn about arglist mismatch with obsolete alias
Resent-From: Marcin Borkowski <mbork@HIDDEN>
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Resent-Date: Fri, 08 Apr 2016 04:57:01 +0000
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To: Glenn Morris <rgm@HIDDEN>
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From: Marcin Borkowski <mbork@HIDDEN>
References: <i48udbxvhc.fsf@HIDDEN>
Date: Fri, 08 Apr 2016 06:56:01 +0200
In-Reply-To: <i48udbxvhc.fsf@HIDDEN> (Glenn Morris's message of
 "Wed, 29 Apr 2015 03:08:15 -0400")
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On 2015-04-29, at 03:08, Glenn Morris <rgm@HIDDEN> wrote:

> Package: emacs
> Version: 24.5
>
> Byte-compiling the following:
>     
>     (defun newfunc ()
>       t)
>     
>     (eval-and-compile
>       (define-obsolete-function-alias 'oldfunc 'newfunc "25.1"))
>     
>     (defun blah ()
>       (oldfunc t))
>
> warns about oldfunc being obsolete:
>   
>   In blah:
>   foo.el:6:8:Warning: `oldfunc' is an obsolete function (as of 25.1); use
>       `newfunc' instead.
>
> however, it says nothing about blah calling oldfunc with the wrong
> number of arguments, which leads to a runtime error.

Confirmed on GNU Emacs 25.1.50.8 (1e8cd05).

Best,

-- 
Marcin

Message sent to bug-gnu-emacs@HIDDEN:

Subject: bug#20457: compiler does not warn about arglist mismatch with obsolete alias
Resent-From: Lars Ingebrigtsen <larsi@HIDDEN>
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Resent-Date: Fri, 28 May 2021 00:31:02 +0000
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To: Glenn Morris <rgm@HIDDEN>
Cc: 20457 <at> debbugs.gnu.org
From: Lars Ingebrigtsen <larsi@HIDDEN>
References: <i48udbxvhc.fsf@HIDDEN>
Date: Fri, 28 May 2021 02:30:38 +0200
In-Reply-To: <i48udbxvhc.fsf@HIDDEN> (Glenn Morris's message of
 "Wed, 29 Apr 2015 03:08:15 -0400")
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Glenn Morris <rgm@HIDDEN> writes:

> warns about oldfunc being obsolete:
>
>   In blah:
>   foo.el:6:8:Warning: `oldfunc' is an obsolete function (as of 25.1); use
>       `newfunc' instead.
>
> however, it says nothing about blah calling oldfunc with the wrong
> number of arguments, which leads to a runtime error.

The problem seems to be more general than that -- it doesn't warn about
the wrong number of arguments, ever, if using aliases?

Test case:

(defun foo ())
(defalias 'bar 'foo)
(defun zot ()
  (bar t))
(defun foobar ()
  (foo t))


----
Compiling file /tmp/warn.el at Fri May 28 02:26:55 2021

In foobar:
warn.el:6:4: Warning: foo called with 1 argument, but accepts only 0
----

Note -- no warning from the zot function.

It seems so odd that nobody has pointed this out before, so I'm
wondering if I'm just doing something obviously wrong in this test
case.  Anybody?

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no

Last modified: Fri, 28 May 2021 00:45:01 UTC

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