|Perl Monk, Perl Meditation|
Re^4: question regarding "Tie" in Perlby BrowserUk (Pope)
|on Nov 05, 2013 at 01:49 UTC||Need Help??|
Cool'n'all as that is, by deferring the construction of constants to runtime, you disavail yourself of various compile-time optimisations that Perl has.
Even the very act of interpolating a read-only variable is an active pessimisation, as whilst perl will enforce the read-onliness, Perl does not (cannot) know that it need not re-interpolate the variable every time it is used:
A small a difference as that may be; it is all those avoidable small bits that add up.
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