From: Fuad Saud <fuadksd@...>
Date: 2013-10-15T23:39:58-03:00
Subject: [ruby-core:57895] Re: [ruby-trunk - Feature #9025] Clarify the error message when calling a method with the wrong number of arguments

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I like the =22expected=22 wording. Also, wouldn't help a little to print =
the method name=3F May help to identify what's wrong faster.

-- =20
=46uad Saud
Sent with Sparrow (http://www.sparrowmailapp.com/=3Fsig)


On Tuesday, October 15, 2013 at 11:34 PM, sawa (Tsuyoshi Sawada) wrote:

> =20
> Issue =239025 has been updated by sawa (Tsuyoshi Sawada).
> =20
> =20
> =22instead of=22 is even worse than =22for=22. It is ambiguous: =221 ar=
gument was given instead of the expected 0=22 or =221 argument should be =
given instead of 0 that was given=22. =22for=22 at least does not have th=
at ambiguity.
> ----------------------------------------
> =46eature =239025: Clarify the error message when calling a method with=
 the wrong number of arguments
> https://bugs.ruby-lang.org/issues/9025=23change-42489
> =20
> Author: Nerian (Gonzalo Rodr=C3=ADguez)
> Status: Open
> Priority: Normal
> Assignee: =20
> Category: =20
> Target version: =20
> =20
> =20
> Currently when calling a method with the wrong number of arguments we g=
et a confusing error message:
> =20
> ArgumentError: wrong number of arguments (1 for 0)
> =20
> That means that the method was meant to accept 0 arguments, but 1 was p=
rovided instead. This error message is confusing, and a large number of p=
eople had to search for its meaning. =46or example =5B1=5D has 11000 view=
s.
> =20
> I propose that we change the error message to something whose meaning i=
s obvious. Examples:
> =20
> * ArgumentError: wrong number of arguments (expected: 1, provided: 0)
> * ArgumentError: wrong number of arguments (1 instead of 0)
> =20
> This ticket originated from this pull request: https://github.com/ruby/=
ruby/pull/367
> =20
> =5B1=5D http://stackoverflow.com/questions/7537450/what-does-wrong-numb=
er-of-arguments-1-for-0-mean-in-ruby
> =20
> =20
> -- =20
> http://bugs.ruby-lang.org/
> =20
> =20



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                <div style=3D=22font-family: Helvetica; font-size: 13px; =
=22>I like the =22expected=22 wording. Also, wouldn't help a little to pr=
int the method name=3F May help to identify what's wrong faster.<br></div=
>
                <div><div><br></div><div>--&nbsp;</div><div>=46uad Saud</=
div><div>Sent with <a href=3D=22http://www.sparrowmailapp.com/=3Fsig=22>S=
parrow</a></div><div><br></div></div>
                =20
                <p style=3D=22color: =23A0A0A8;=22>On Tuesday, October 15=
, 2013 at 11:34 PM, sawa (Tsuyoshi Sawada) wrote:</p>
                <blockquote type=3D=22cite=22 style=3D=22border-left-styl=
e:solid;border-width:1px;margin-left:0px;padding-left:10px;=22>
                    <span><div><div><div><br></div><div>Issue =239025 has=
 been updated by sawa (Tsuyoshi Sawada).</div><div><br></div><div><br></d=
iv><div>=22instead of=22 is even worse than =22for=22. It is ambiguous: =22=
1 argument was given instead of the expected 0=22 or =221 argument should=
 be given instead of 0 that was given=22. =22for=22 at least does not hav=
e that ambiguity.</div><div>----------------------------------------</div=
><div>=46eature =239025: Clarify the error message when calling a method =
with the wrong number of arguments</div><div><a href=3D=22https://bugs.ru=
by-lang.org/issues/9025=23change-42489=22>https://bugs.ruby-lang.org/issu=
es/9025=23change-42489</a></div><div><br></div><div>Author: Nerian (Gonza=
lo Rodr=C3=ADguez)</div><div>Status: Open</div><div>Priority: Normal</div=
><div>Assignee: </div><div>Category: </div><div>Target version: </div><di=
v><br></div><div><br></div><div>Currently when calling a method with the =
wrong number of arguments we get a confusing error message:</div><div><br=
></div><div>    ArgumentError: wrong number of arguments (1 for 0)</div><=
div><br></div><div>That means that the method was meant to accept 0 argum=
ents, but 1 was provided instead. This error message is confusing, and a =
large number of people had to search for its meaning. =46or example =5B1=5D=
 has 11000 views.</div><div><br></div><div>I propose that we change the e=
rror message to something whose meaning is obvious. Examples:</div><div><=
br></div><div>*  ArgumentError: wrong number of arguments (expected: 1,  =
provided: 0)</div><div>*  ArgumentError: wrong number of arguments (1 ins=
tead of 0)</div><div><br></div><div>This ticket originated from this pull=
 request: <a href=3D=22https://github.com/ruby/ruby/pull/367=22>https://g=
ithub.com/ruby/ruby/pull/367</a></div><div><br></div><div>=5B1=5D <a href=
=3D=22http://stackoverflow.com/questions/7537450/what-does-wrong-number-o=
f-arguments-1-for-0-mean-in-ruby=22>http://stackoverflow.com/questions/75=
37450/what-does-wrong-number-of-arguments-1-for-0-mean-in-ruby</a></div><=
div><br></div><div><br></div><div>-- </div><div><a href=3D=22http://bugs.=
ruby-lang.org=22>http://bugs.ruby-lang.org</a>/</div></div></div></span>
                =20
                =20
                =20
                =20
                </blockquote>
                =20
                <div>
                    <br>
                </div>
            
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