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Date: Tue, 25 Jun 2013 13:18:50 +0200
To: Christian Stoller <stoller@leonex.de>
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Subject: =?UTF-8?Q?RE=3A_Announcing_RFC_'Anonymous_Catches'?=
From: joost.koehoorn@gmail.com (Joost Koehoorn)

> Hi all,=C2=A0
>=C2=A0
> I just published an R=46C that proposes to add catch-statement without =
needing to specify a variable, and support for fully > anonymous catches.=
=C2=A0
>=C2=A0
> Details can be found at:=C2=A0
>=C2=A0
> https://wiki.php.net/rfc/anonymous=5Fcatch=C2=A0
>=C2=A0
> Regards,=C2=A0
>=C2=A0
> Joost Koehoorn=C2=A0
>=C2=A0

Hi.=C2=A0
I am not sure about complete anonymous catch statement (like try =7B =7D =
catch =7B =7D), but I really like the proposal for omitting the exception=
 variable.=C2=A0

Because in frameworks like Symfony there are defined and used a lot of sp=
ecial exception types for each cases.=C2=A0
Here's an example that shows what I mean:=C2=A0

try =7B=C2=A0
=24foo->authenticate(=24user);=C2=A0
=7D catch (BadCredentialsException) =7B=C2=A0
echo =22Bad credentials=22;=C2=A0
=7D catch (InactiveAccount) =7B=C2=A0
echo =22Sorry, your account is not active anymore.=22;=C2=A0
=7D catch (CurlErrorOnAuthService) =7B=C2=A0
echo =22Please try again later, the login service is currently unavailabl=
e.=22;=C2=A0
=7D catch (Exception) =7B=C2=A0
echo =22bla blubb=22;=C2=A0
=7D=C2=A0

In such a case you do not need any =60=24e=60variable. Netbeans for examp=
le always highlight's these variables because it is not used anywhere. Bu=
t I think it looks a bit cleaner if the variable could be omitted, if it'=
s not needed ;-)=C2=A0

Best regards=C2=A0
Christian
This is exactly the reason, yes=21

As stated in the R=46C, I think it's best that we consider the two ways s=
eparately. Omitting the variable is a much smaller change (and requires v=
ery little code changes) than having a fully anonymous catch.

I originally dived into this because of a question of Phil Sturgeon on tw=
itter, requesting for making the variable optional. I took it one step fu=
rther and made the whole thing optional, but surely we can decide to only=
 make the variable optional, I can see how it's bad programming practice =
to have fully anonymous blocks (even though sometimes they may be used). =
Just throwing this out here to see what you think about it.



Regards,

Joost