# Copyright 2014-2019, Paul Johnson (paul@pjcj.net)

# This software is free.  It is licensed under the same terms as Perl itself.

# The latest version of this software should be available from my homepage:
# http://www.pjcj.net

package Devel::Cover::DB::IO::Sereal;

use strict;
use warnings;

use base "Devel::Cover::DB::IO::Base";

use Sereal::Decoder;
use Sereal::Encoder;

our $VERSION = '1.36'; # VERSION

my ($Decoder, $Encoder);

sub new {
    my $class = shift;
    my $self = $class->SUPER::new(@_);
    bless $self, $class
}
sub read {
    my $self   = shift;
    my ($file) = @_;
    $self->_read_fh($file, sub {
        my ($fh) = @_;
        local $/;
        my $data = eval {
            ($Decoder ||= Sereal::Decoder->new({}))->decode(<$fh>)
        };
        die "Can't read $file with Sereal: $@" if $@;
        $data
    })
}

sub write {
    my $self = shift;
    my ($data, $file) = @_;
    $self->_write_fh($file, sub {
        my ($fh) = @_;
        print $fh ($Encoder ||= Sereal::Encoder->new({}))->encode($data);
    })
}

1

__END__

=head1 NAME

Devel::Cover::DB::IO::Sereal - Sereal based IO routines for Devel::Cover::DB

=head1 VERSION

version 1.36

=head1 SYNOPSIS

 use Devel::Cover::DB::IO::Sereal;

 my $io = Devel::Cover::DB::IO::Sereal->new;
 my $data = $io->read($file);
 $io->write($data, $file);

=head1 DESCRIPTION

This module provides Sereal based IO routines for Devel::Cover::DB.

=head1 SEE ALSO

 Devel::Cover

=head1 METHODS

=head2 new

 my $io = Devel::Cover::DB::IO::Sereal->new;

Constructs the IO object.

=head2 read

 my $data = $io->read($file);

Returns a perl data structure representing the data read from $file.

=head2 write

 $io->write($data, $file);

Writes $data to $file in the format specified when creating $io.

=head1 BUGS

Huh?

=head1 LICENCE

Copyright 2011-2019, Paul Johnson (paul@pjcj.net)

This software is free.  It is licensed under the same terms as Perl itself.

The latest version of this software should be available from my homepage:
http://www.pjcj.net

=cut
