NAME

Tie::Hash::Identity - A hash that always returns the key

VERSION

Version 0.01

SYNOPSIS

    use Tie::Hash::Identity;

    my %hash;
    tie %hash, 'Tie::Hash::Identity';

    $hash{abc} eq 'abc'; # true
    $hash{1+2+3} eq '6'; # true

DESCRIPTION

A hash that always returns the key.

It's useful when interpolating EXPR in a double quoted string.

Maybe you should try Hash::Identity with a better importing interface.

It only support for retrieving data. Never storing data back, nor trying to iterate over it.

SEE ALSO

Hash::Identity - same thing, with a better importing interface.

AUTHOR

Cindy Wang (CindyLinz)

BUGS

Please report any bugs or feature requests to bug-tie-hash-identity at rt.cpan.org, or through the web interface at http://rt.cpan.org/NoAuth/ReportBug.html?Queue=Tie-Hash-Identity. I will be notified, and then you'll automatically be notified of progress on your bug as I make changes.

LICENSE AND COPYRIGHT

Copyright 2010 Cindy Wang (CindyLinz).

This program is free software; you can redistribute it and/or modify it under the terms of either: the GNU General Public License as published by the Free Software Foundation; or the Artistic License.

See http://dev.perl.org/licenses/ for more information.