From: Adam Prescott <adam@...>
Date: 2012-03-29T23:33:59+09:00
Subject: [ruby-core:43865] Re: [ruby-trunk - Feature #5008] Equal rights for Hash (like Array, String, Integer, Float)

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On Thu, Mar 29, 2012 at 14:39, Alex Young <alex@blackkettle.org> wrote:

> Would you argue that this is wrong and should be removed?
>
> 1.9.3p125 :001 > nil.to_a
>  => []
>
> If not, why not?
>

Perhaps I wasn't clear (including to myself).

I think nil.to_h is probably fine, for the same reason nil.to_a is fine,
and it would nice to have it. But, I think adding #each to NilClass is the
wrong way to go to get around being able to call #each on the return value
of some method call. If you really need to_h behaviour, I think you can go
for || before sticking #each on NilClass.

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<div class=3D"gmail_quote">On Thu, Mar 29, 2012 at 14:39, Alex Young <span =
dir=3D"ltr">&lt;<a href=3D"mailto:alex@blackkettle.org">alex@blackkettle.or=
g</a>&gt;</span> wrote:<br><blockquote class=3D"gmail_quote" style=3D"margi=
n:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">

<div id=3D":1j0">Would you argue that this is wrong and should be removed?<=
br>
<br>
1.9.3p125 :001 &gt; nil.to_a<br>
=C2=A0=3D&gt; []<br>
<br>
If not, why not?</div></blockquote></div><br><div>Perhaps I wasn&#39;t clea=
r (including to myself).</div><div><br></div><div>I think nil.to_h is proba=
bly fine, for the same reason nil.to_a is fine, and it would nice to have i=
t. But,=C2=A0I think adding #each to NilClass is the wrong way to go to get=
 around being able to call #each on the return value of some method call. I=
f you really need to_h behaviour, I think you can go for || before sticking=
 #each on NilClass.</div>


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