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Postings from April 2013
On Wed, Apr 10, 2013 at 7:04 AM, Nicholas Clark <nick@ccl4.org> wrote:
> On Wed, Apr 10, 2013 at 06:48:23AM -0300, Brian Fraser wrote:
> > Another objection, I don't think either of these should fail:
> >
> > $ ./perl -e '%:: = %::'
> > Attempt to clear the %main:: symbol table at -e line 1.
> >
> > $ ./perl -e '%:: = map { $_ => $::{$_} } grep !/foo|bar/, keys %::;'
> > Attempt to clear the %main:: symbol table at -e line 1.
>
> Given how hash list assignment is implemented, it's hard to see how to
> permit those to keep working whilst also adding a way to prevent
> clearing %::
>
> I can see that they are reduced test cases, but what's the real world
> use case that they represent?
>
Ah. Good question; None productive from me. I've only used them in joke
modules and when trying to make Perl crash. So that's a strike against that
objection.
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