Scalar::Dynamizer enables the creation of dynamic scalars that automatically
recompute their values whenever they are accessed. This module simplifies
working with dynamically evaluated scalars using Perl's tie mechanism and
operator overloading, making it intuitive and transparent to implement scalars
that depend on the program's state at the time of access.
Dynamic scalars are particularly useful for counters, timestamps, or real-time data from external sources such as databases or APIs.
To install this module, run the following commands:
perl Makefile.PL
make
make test
make install
Here’s a quick example:
use Scalar::Dynamizer qw(dynamize);
my $count = 0;
# Create a dynamic scalar
my $counter = dynamize { ++$count };
print $counter; # 1
print $counter * 100; # 200
print "Count is $counter"; # "Count is 3"
See the examples/ directory for additional examples.
After installing, you can find documentation for this module with the perldoc
command:
perldoc Scalar::Dynamizer
You can also look for additional information at:
- RT (CPAN's request tracker): https://rt.cpan.org/NoAuth/Bugs.html?Dist=Scalar-Dynamizer
- CPAN Ratings: https://cpanratings.perl.org/d/Scalar-Dynamizer
- MetaCPAN: https://metacpan.org/release/Scalar-Dynamizer
This software is copyright (c) 2025 by Jeremi Gosney < epixoip at cpan.org >
This is free software, licensed under: The Artistic License 2.0 (GPL Compatible)