From: Robert Dober <robert.dober@...>
Date: 2006-08-28T20:19:14+09:00
Subject: Re: (again) Rescue clauses on do/end blocks?

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On 8/28/06, Austin Ziegler <halostatue@gmail.com> wrote:
>
> On 8/27/06, Mat Schaffer <schapht@gmail.com> wrote:
> > > >> Would this be unreasonable?
> > > >>
> > > >> foo {
> > > >>    blah
> > > >>    rescue ExceptionA
> > > >>      handle A
> > > >>    rescue ExceptionB
> > > >>      handle B
> > > >>    ensure
> > > >>      finish things
> > > >> }
> > > >>
> > Well re-proposing it anyway.  I'm mostly curious if there's some
> > fundamental problem with it that I'm not seeing.  Since this
> > particular syntax wasn't proposed the last time the discussion went
> > around.
>
> IIRC, Matz thinks it's ugly (I can't say I disagree, even though I
> desire the functionality). I think it's one of the few cases where
> it's worth the ugliness to be orthogonal here.


Unless we try to be orthogonal in a different way like e.g.
do,begin => {
end => }
rescue => who am I to propose something here, but a short "symbol rather
than keyword"
is in my mind, maybe let us look at some
enusre => see above

{
   stupid
   ?   # too overloaded cannot be used in the same line with stupid
   intelligent
}

{
   stupid
   ||| # just kidding
   intelligent
   <<< # see above
   necessary
}

{
   stupid
   ?? StupidError => se
   intelligent
   !!
   necessary
}

Hmm I think it was worth spelling it out => UGLY :(

Robert

> Most people won't like how {} with rescue looks and probably switch to
> do/end if the need rescue. The *only* think I can think of is maybe:
>
> foo { bar rescue nil }
>
> Is that still the post version?
>
> -austin
> --
> Austin Ziegler * halostatue@gmail.com * http://www.halostatue.ca/
>                * austin@halostatue.ca * http://www.halostatue.ca/feed/
>                * austin@zieglers.ca
>
>

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