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class::whitehole

Class::WhiteHole(3pm)					User Contributed Perl Documentation				     Class::WhiteHole(3pm)

NAME

       Class::WhiteHole - 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 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.  All unhandled methods will produce
       normal Perl error messages.

BUGS &; CAVEATS
       Be sure to have Class::WhiteHole before the class from which you're inheriting AUTOLOAD in the ISA.  Usually you'll want Class::WhiteHole
       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

perl v5.10.0							    2003-05-28						     Class::WhiteHole(3pm)

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