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23 Apr 2020 21:03:20 UTC
- Distribution: Clone
- Module version: 0.45
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Bus factor: 2- 78.45% Coverage
- License: perl_5
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NAME
Clone - recursively copy Perl datatypes
SYNOPSIS
use Clone 'clone'; my $data = { set => [ 1 .. 50 ], foo => { answer => 42, object => SomeObject->new, }, }; my $cloned_data = clone($data); $cloned_data->{foo}{answer} = 1; print $cloned_data->{foo}{answer}; # '1' print $data->{foo}{answer}; # '42'
You can also add it to your class:
package Foo; use parent 'Clone'; sub new { bless {}, shift } package main; my $obj = Foo->new; my $copy = $obj->clone;
DESCRIPTION
This module provides a
clone()
method which makes recursive copies of nested hash, array, scalar and reference types, including tied variables and objects.clone()
takes a scalar argument and duplicates it. To duplicate lists, arrays or hashes, pass them in by reference, e.g.my $copy = clone (\@array); # or my %copy = %{ clone (\%hash) };
SEE ALSO
Storable's
dclone()
is a flexible solution for cloning variables, albeit slower for average-sized data structures. Simple and naive benchmarks show that Clone is faster for data structures with 3 or fewer levels, whiledclone()
can be faster for structures 4 or more levels deep.COPYRIGHT
Copyright 2001-2019 Ray Finch. All Rights Reserved.
This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
AUTHOR
Ray Finch
<rdf@cpan.org>
Breno G. de Oliveira
<garu@cpan.org>
and Florian Ragwitz<rafl@debian.org>
perform routine maintenance releases since 2012.Module Install Instructions
To install Clone, copy and paste the appropriate command in to your terminal.
cpanm Clone
perl -MCPAN -e shell install Clone
For more information on module installation, please visit the detailed CPAN module installation guide.