Object::Deadly(3) User Contributed Perl Documentation Object::Deadly(3)
NAME
Object::Deadly - An object that dies whenever examined
SYNOPSIS
use Object::Deadly;
use Test::Exception 'lives_ok';
# Test that a few functions inspect their parameters safely
lives_ok { some_function( Object::Deadly->new ) } 'some_function';
lives_ok { Dumper( Object::Deadly->new ) } 'Data::Dumper';
DESCRIPTION
This object is meant to be used in testing. All possible overloading and method calls die. You can pass this object into methods which are
not supposed to accidentally trigger any potentially overloading.
This problem arose when testing Data::Dump::Streamer and Carp. The former was triggering overloaded object methods instead of just dumping
their data. Data::Dump::Streamer is now safe for overloaded objects but it wouldn't have been unless it hadn't have been tested with a
deadly, overloaded object.
DEALING WITH DEATH
TODO
METHODS
"Object::Deadly->new()"
"Object::Deadly->new( MESSAGE )"
The class method "Object::Deadly->new" returns an "Object::Deadly" object. Dies with a stack trace and a message when evaluated in any
context. The default message contains a stack trace from where the object is created.
"Object::Deadly->new_with( REFERENCE )"
The class method "Object::Deadly->new_with" returns an "Object::Deadly" object. Dies with a stack trace and a message when evaluated in
any context. The default message contains a stack trace from where the object is created.
"Object::Deadly->kill_function( FUNCTION NAME )"
"Object::Deadly->kill_function( FUNCTION NAME, DEATH CODE REF )"
The class method kill_function accepts a function name like "isa", "can", or similar and creates a function in the
"Object::Deadly::_unsafe" class of the same name.
An optional second argument is a code reference to die with. This defaults to "Object::Deadly->can( '_death' )".
"Object::Deadly->kill_UNIVERSAL"
This class method kills all currently known UNIVERSAL functions so they can't be called on a "Object::Deadly" object. This includes a
list of methods known to the author and then an inspection of UNIVERSAL::.
"Object::Deadly->get_death"
Returns the function "Object::Deadly::_death".
PRIVATE FUNCTIONS
The following functions are all private and not meant for public consumption.
"_death( $obj )"
This function temporarilly reblesses the object into "Object::Deadly::_safe", extracts the message from inside of it, and "confess"'s
with it.
AUTHOR
Joshua ben Jore, "<jjore at cpan.org>"
BUGS
Please report any bugs or feature requests to "bug-object-deadly at rt.cpan.org", or through the web interface at
<http://rt.cpan.org/NoAuth/ReportBug.html?Queue=Object-Deadly>. I will be notified, and then you'll automatically be notified of progress
on your bug as I make changes.
SUPPORT
You can find documentation for this module with the perldoc command.
perldoc Object::Deadly
You can also look for information at:
o AnnoCPAN: Annotated CPAN documentation
<http://annocpan.org/dist/Object-Deadly>
o CPAN Ratings
<http://cpanratings.perl.org/d/Object-Deadly>
o RT: CPAN's request tracker
<http://rt.cpan.org/NoAuth/Bugs.html?Dist=Object-Deadly>
o Search CPAN
<http://search.cpan.org/dist/Object-Deadly>
ACKNOWLEDGEMENTS
Yves Orton and Yitzchak Scott-Thoennes.
COPYRIGHT &; LICENSE
Copyright 2006 Joshua ben Jore, all rights reserved.
This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
perl v5.16.3 2006-09-25 Object::Deadly(3)