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What worries me is that, while strict is perfectly happy with it, the code below has a run-time error that may not be triggered for hours/days/weeks/months/...

Okay... So does the equivalent static dispatch table.

use strict; use warnings; ;; sub hiya { print 'hi from ', (caller(1))[3]; } ;; sub _x_foo { hiya; }; sub _x_bar { hiya; }; ;; my %disp = ( foo => \&_x_foo, bar => \&_x_bar, zot => \&_x_zot, ); dd \%disp; ;; $disp{foo}->(); $disp{zot}->(); $disp{bar}->();

You have to write code for each piece in order for the whole thing to work reliably, but you may not discover that it doesn't until a very inopportune moment. If everything could be thoroughly tested prior to deployment, the queasy feeling in my stomach might be eased a bit, but even so...

This is true for all Perl code though. There's a gajillion ways to write a script that "compiles" with strictures enabled but fails at runtime. This is why we write tests (unit, functional, etc).

In reply to Re^6: Creating dispatch table with variable in function name by Mr. Muskrat
in thread Creating dispatch table with variable in function name by nysus

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