Manual Reference Pages - CLASS::WHITEHOLE (3)
Class::WhiteHole - base class to treat unhandled method calls as errors
# DBI inherits from DynaLoader which inherits from AutoLoader
# Bar wants to avoid this accidental inheritance of AutoLoader.
use base qw(Class::WhiteHole DBI);
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 youre
inheriting AUTOLOAD in the ISA. Usually youll 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 2000 Michael G Schwern <email@example.com> all rights
reserved. This program is free software; you can redistribute it
and/or modify it under the same terms as Perl itself.
Michael G Schwern <firstname.lastname@example.org>
|perl v5.20.3 ||CLASS::WHITEHOLE (3) ||2003-05-28 |
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