Re^2: Real life uses for closures.

Oh, and if you want something really closurey, Sort::MultipleFields. There's no clean way of doing what that does without using closures.

The other obvious approach to that problem is to build some code using eval. In fact, I find that you can almost always replace eval with a closure.

Comment on Re^2: Real life uses for closures. Download Code

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Re^3: Real life uses for closures. by tobyink (Canon) on Feb 13, 2013 at 13:14 UTC
Technically none of the examples from Sort::MultipleFields employ closures; they just use anonymous functions. Closures "close over" a variable. `package Cow { use Moo; has name => (is => 'lazy', default => sub { 'Mooington' }) } say Cow->new->name`	[reply]
Re^4: Real life uses for closures. by DrHyde (Prior) on Feb 18, 2013 at 11:54 UTC
Here's a closure from it ... `$sortsub = sub($$) { $spec->($_[0]->{$field}, $_[1]->{$field}) \|\| $oldsortsub->($_[0], $_[1]) }` [download] Lemme guess - did you just grep the code for /`sub {`/? :-)	[reply] [d/l] [select]
Re^5: Real life uses for closures. by tobyink (Canon) on Feb 18, 2013 at 20:20 UTC
I didn't look at the source code at all - I was just referring to the usage examples in the pod. `package Cow { use Moo; has name => (is => 'lazy', default => sub { 'Mooington' }) } say Cow->new->name`	[reply]


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