NAME
   Scalar::Accessors::LikeHash - access a JSON/Sereal/etc scalar string in a
   hash-like manner

SYNOPSIS
      {
         package Acme::Storable::Accessors;

         use Storable qw/ freeze thaw /;

         use Role::Tiny::With;
         with 'Scalar::Accessors::LikeHash';

         sub _to_hash {
            my ($ref) = @_;
            thaw($$ref);
         }

         sub _from_hash {
            my ($ref, $hash) = @_;
            $$ref = freeze($hash);
         }
      }

      my $string = File::Slurp::slurp("some-data.storable");
      my $object = Acme::Storable::Accessors->new(\$string);

      $object->store(some_key => 42) unless $object->exists('some_key');
      $object->fetch('some_key');
      $object->delete('some_key');

DESCRIPTION
   The idea of this is to treat a reference to a string as if it were a hash.
   You can store key-values pairs; fetch values using keys; delete keys; etc.
   This is slow and quite silly.

   This module is a role. Concrete implementations of the role need to
   provide `_from_hash` and `_to_hash` methods to serialize and deserialize a
   hashref to/from a scalarref.

   This role provides the following methods:

   `new(\$scalar)`
       Yes, this role provides a constructor. Consumers can overide it.

   `fetch($key)`
   `store($key, $value)`
   `exists($key)`
   `delete($key)`
   `clear()`
       Delete for each key.

   `keys()`
   `values()`

   These can be called as methods on a blessed scalar reference:

           my $string = "{}";
           bless \$string, "Scalar::Accessors::LikeHash::JSON";
           $string->store(foo => 42);

   Or as class methods passing the scalar reference as an extra first
   argument:

           my $string = "{}";
           Scalar::Accessors::LikeHash::JSON->store(\$string, foo => 42);

BUGS
   Please report any bugs to
   <http://rt.cpan.org/Dist/Display.html?Queue=Scalar-Accessors-LikeHash>.

SEE ALSO
   For a more usable interface, see Tie::Hash::SerializedString.

   For concrete implementations, see Scalar::Accessors::LikeHash::JSON and
   Scalar::Accessors::LikeHash::Sereal.

   For an insane usage of this concept, see Acme::MooseX::JSON.

AUTHOR
   Toby Inkster <[email protected]>.

COPYRIGHT AND LICENCE
   This software is copyright (c) 2013 by Toby Inkster.

   This is free software; you can redistribute it and/or modify it under the
   same terms as the Perl 5 programming language system itself.

DISCLAIMER OF WARRANTIES
   THIS PACKAGE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED
   WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
   MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.