# Class::WhiteHole - perldoc - [phpMan]

## NAME
    [Class::WhiteHole](https://www.chedong.com/phpMan.php/perldoc/Class%3A%3AWhiteHole/markdown) - base class to treat unhandled method calls as errors

## SYNOPSIS
      package Bar;

      # DBI inherits from DynaLoader which inherits from AutoLoader
      # Bar wants to avoid this accidental inheritance of AutoLoader.
      use base qw([Class::WhiteHole](https://www.chedong.com/phpMan.php/perldoc/Class%3A%3AWhiteHole/markdown) DBI);

## DESCRIPTION
    Its possible to accidentally inherit an AUTOLOAD method. Often this will happen if a class
    somewhere in the chain uses AutoLoader or defines one of their own. This can lead to confusing
    error messages when method lookups fail.

    Sometimes you want to avoid this accidental inheritance. In that case, inherit from
    [Class::WhiteHole](https://www.chedong.com/phpMan.php/perldoc/Class%3A%3AWhiteHole/markdown). All unhandled methods will produce normal Perl error messages.

BUGS & CAVEATS
    Be sure to have [Class::WhiteHole](https://www.chedong.com/phpMan.php/perldoc/Class%3A%3AWhiteHole/markdown) before the class from which you're inheriting AUTOLOAD in the
    ISA. Usually you'll want [Class::WhiteHole](https://www.chedong.com/phpMan.php/perldoc/Class%3A%3AWhiteHole/markdown) to come first.

    If your class inherits autoloaded routines this class may cause them to stop working. Choose
    wisely before using.

    White holes are only a hypothesis and may not really exist.

## COPYRIGHT
    Copyright 2000 Michael G Schwern <<schwern@pobox.com>> all rights reserved. This program is free
    software; you can redistribute it and/or modify it under the same terms as Perl itself.

## AUTHOR
    Michael G Schwern <<schwern@pobox.com>>

## SEE ALSO
    [Class::BlackHole](https://www.chedong.com/phpMan.php/perldoc/Class%3A%3ABlackHole/markdown)