NAME

Tie::CheckVariables - check/validate variables for their data type

VERSION

version 0.07

SYNOPSIS

            

              
              
use Tie::CheckVariables;
tie my $scalar,'Tie::CheckVariables','integer';
$scalar = 88; # is ok
$scalar = 'test'; # is not ok, throws error
untie $scalar;
            
          

DATA TYPES

You can use these data types by default:

• integer

• float

• string

WHAT TO DO WHEN CHECK FAILS

on_error

You can specify a subroutine that is invoked on error:

            

              
              
use Tie::CheckVariables;
Tie::CheckVariables->on_error(sub{print "ERROR!"});
tie my $scalar,'Tie::CheckVariables','integer';
$scalar = 'a'; # ERROR! is printed
untie $scalar;
            
          

USE YOUR OWN DATA TYPE

register

If the built-in data types aren't enough, you can extend this module with your own data types:

            

              
              
use Tie::CheckVariables;
Tie::CheckVariables->register('url','^http://');
tie my $test_url,'Tie::CheckVariables','url';
$test_url = 'http://www.perl.org';
untie $test_url;
            
          

USING Type::Tiny

Since the very first version of this module, a lot has happened. Moose, Moo and other very nice modules were developed. And sometimes later Type::Tiny was written.

So I added support for Types::Standard now ;-)

            

              
              
use Tie::CheckVariables;
use Types::Standard qw(Int);
tie my $test_int,'Tie::CheckVariables', Int;
$test_int = 112;
$test_int = 'Test'; # throws error
untie $test_url;
            
          

AUTHOR

Renee Baecker <reneeb@cpan.org>

COPYRIGHT AND LICENSE

This software is Copyright (c) 2006 by Renee Baecker.

This is free software, licensed under:

            

              
              
The Artistic License 2.0 (GPL Compatible)