File Coverage

blib/lib/MCE/Shared/Scalar.pm

Criterion	Covered	Total	%
statement	20	48	41.6
branch	0	2	0.0
condition	0	10	0.0
subroutine	7	19	36.8
pod	9	9	100.0
total	36	88	40.9

###############################################################################
## ----------------------------------------------------------------------------
## Scalar helper class.
##
###############################################################################

package MCE::Shared::Scalar;

use strict;
use warnings;

use 5.010001;

no warnings qw( threads recursion uninitialized numeric );

our $VERSION = '1.881';

## no critic (TestingAndDebugging::ProhibitNoStrict)

use MCE::Shared::Base ();

use overload (
   q("")    => \&MCE::Shared::Base::_stringify,
   q(0+)    => \&MCE::Shared::Base::_numify,
   fallback => 1
);

# Based on Tie::StdScalar from Tie::Scalar.

sub TIESCALAR {
   my $class = shift;
   bless \do{ my $o = defined $_[0] ? shift : undef }, $class;
}

sub STORE { ${ $_[0] } = $_[1] }
sub FETCH { ${ $_[0] } }

###############################################################################
## ----------------------------------------------------------------------------
## Sugar API, mostly resembles https://redis.io/commands#string primitives.
##
###############################################################################

# append ( string )

sub append {
   length( ${ $_[0] } .= $_[1] // '' );
}

# decr
# decrby ( number )
# incr
# incrby ( number )
# getdecr
# getincr

sub decr    { --${ $_[0] }               }
sub decrby  {   ${ $_[0] } -= $_[1] || 0 }
sub incr    { ++${ $_[0] }               }
sub incrby  {   ${ $_[0] } += $_[1] || 0 }
sub getdecr {   ${ $_[0] }--        // 0 }
sub getincr {   ${ $_[0] }++        // 0 }

# getset ( value )

sub getset {
   my $old = ${ $_[0] };
   ${ $_[0] } = $_[1];

   $old;
}

# len ( )

sub len {
   length ${ $_[0] };
}

{
   no strict 'refs';

   *{ __PACKAGE__.'::new' } = \&TIESCALAR;
   *{ __PACKAGE__.'::set' } = \&STORE;
   *{ __PACKAGE__.'::get' } = \&FETCH;
}

1;

__END__