Tiago Peczenyj > Lazy-Bool-0.05 > Lazy::Bool::Cached

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Module Version: 0.05   Source   Latest Release: Lazy-Bool-0.06

NAME ^

Lazy::Bool::Cached - Boolean wrapper lazy with memoize

SYNOPSIS ^

  use Lazy::Bool::Cached;

  my $result = Lazy::Bool::Cached->new(sub{  
        # complex boolean expression
  });

  #...
  if($result) { # now we evaluate the expression
        
  }

  if($result) { # do not evaluate again. it is cached.

  }
  
 # Using this module you can play with lazy booleans. 

 # With expressions '&', '|' and '!' you can delay the expression evaluation until necessary.

DESCRIPTION ^

This class extends Lazy::Bool

Functions

lzbc

Helper to create an instance

  use Lazy::Bool::Cached qw(lzbc);

  my $a = 6;
  my $b = 4;
  my $condition = lzbc { $a > $b };

EXPORT ^

This package can export the helper lzbc to easily create a new instance of Lazy::Bool::Cached

SEE ALSO ^

Lazy::Bool, Scalar::Lazy and Scalar::Defer

AUTHOR ^

Tiago Peczenyj, <tiago.peczenyj@gmail.com>

COPYRIGHT AND LICENSE ^

Copyright (C) 2013 by Tiago Peczenyj

This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself, either Perl version 5.10.0 or, at your option, any later version of Perl 5 you may have available.

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