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Re^2: What operator should perl5porters use for safe dereferencing? (Specification?)

by ambrus (Abbot)
on Jun 03, 2012 at 09:06 UTC ( #974098=note: print w/ replies, xml ) Need Help??


in reply to Re: What operator should perl5porters use for safe dereferencing? (Specification?)
in thread What operator should perl5porters use for safe dereferencing?

Both of those!

$r&->f would behave something like $r && $r->f so it would call method f on the object $r if it's set, or do nothing and return undef if $r is undefined.

$h{$w}&->() would look the word $w up in the hooks table %h, and if there's an entry, call it as a subref, but if there's no entry, it would just nop silently.

Finally, $t{$x}&->{$y} would be like $t{$x}{$y} only it doesn't autovivify $t{$x} as a hashref if it doesn't exist.


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