./devel/p5-constant-defer, constant subs with deferred value calculation

[ CVSweb ] [ Homepage ] [ RSS ] [ Required by ] [ Add to tracker ]

Branch: pkgsrc-2022Q4, Version: 6nb1, Package name: p5-constant-defer-6nb1, Maintainer: pkgsrc-users

constant::defer creates a subroutine which on the first call runs given
code to calculate its value, and on any subsequent calls just returns that
value, like a constant. The value code is discarded once run, allowing it
to be garbage collected.

Deferring a calculation is good if it might take a lot of work or produce
a big result but is only needed sometimes or only well into a program run.
If it's never needed then the value code never runs.

Master sites: (Expand)

Filesize: 42.409 KB

Version history: (Expand)