NAME

Perl::Clone -

SYNOPSIS

EXPORTS

Nothing exported by default

Exported upon request

clone, overlay

:all

clone, overlay

DEPENDENCIES

This module requires these other modules and libraries:

    Try::Tiny
    Exporter
    Carp
    Data::OrderedHash

DESCRIPTION

PUBLIC INTERFACE

clone

Recursively clone the reference, returning a new reference.

where:

  $create               Specifies the constructor to use for creating new
                        objects.  Default is: -copy_ref
    
        -keep_order     Use Data::OrderedHash for creating hashes
        -copy_ref       Call C<new> on the source structure reference
        -pure_perl      Use {}, [], \'' for creating new objects
        \%hash          Provide your own constructors

Implemented because the Clone module found on CPAN crashes under my mod_perl and FastCGI test servers.

The constructor-hash looks like:

  our %PerlStructs = (
    'HASH' => sub {return {};},
    'ARRAY' => sub {return [];},
    'SCALAR' => sub {my $s = ''; return \$s},
  );

The ref() of the source structure is passed as the first argument to the constructor-hash subroutine.

overlay

Overlay one structre on top of another

@see "clone" for $create option. -no_clone Do not clone values

AUTHORS

    Ryan Gies <ryangies@cpan.org>

COPYRIGHT

    Copyright (C) 2014-2016 by Ryan Gies. All rights reserved.
    Copyright (C) 2006-2013 by Livesite Networks, LLC. All rights reserved.
    Copyright (C) 2000-2005 by Ryan Gies. All rights reserved.
    Redistribution and use in source and binary forms, with or without 
    modification, are permitted provided that the following conditions are met:
    * Redistributions of source code must retain the above copyright notice, 
    this list of conditions and the following disclaimer.
    * The origin of this software must not be misrepresented; you must not 
    claim that you wrote the original software. If you use this software in a 
    product, an acknowledgment in the product documentation would be 
    appreciated but is not required.
    * Altered source versions must be plainly marked as such, and must not be 
    misrepresented as being the original software.
    * The name of the author may not be used to endorse or promote products 
    derived from this software without specific prior written permission.

    THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR IMPLIED 
    WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
    MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO 
    EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 
    EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 
    OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
    INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
    CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 
    IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 
    OF SUCH DAMAGE.
    To the best of our knowledge, no patented algorithms have been used. However, we
    do not have the resources to carry out a patent search, and therefore cannot 
    give any guarantee of the above statement.