劉康民 > Sub-Alias-0.03 > Sub::Alias

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Module Version: 0.03   Source  

NAME ^

Sub::Alias - Simple subroutine alias.

VERSION ^

This document describes Sub::Alias version 0.01

SYNOPSIS ^

    use Sub::Alias;

    sub name { "David" }
    alias get_name => 'name';

    print get_name; # "David"

DESCRIPTION ^

This module does a compile-time code injection to let you define subroute aliases with their names, but not code refs.

The not-so-scarily-described way to alias a sub looks like this:

    sub name { "..." }
    *get_name = \&name;

As you can see, it's a bit of trouble to type the whole line without without making your finger jammed unless you're using some smart text editors.

INTERFACE ^

alias $new_name => $old_name

This function is exported by default.

The alias subroutine can be referenced by its name:

    alias get_name => 'name';

Or by its reference:

    alias get_name => \&name;

Also notice that doing this will actually call the name function:

    alias get_name => name;

However, get_name will still be an alias to name funciton after this statement.

It is recommended that you just pass function names as strings.

NOTICE: If your new name depends on runtime data:

    alias $new_foo => \&foo;

You need to put them in a single line alone.

DEPENDENCIES ^

Devel::BeginLift, Devel::Declare, Sub::Exporter

INCOMPATIBILITIES ^

None reported.

BUGS AND LIMITATIONS ^

No bugs have been reported.

Please report any bugs or feature requests to bug-sub-alias@rt.cpan.org, or through the web interface at http://rt.cpan.org.

AUTHOR ^

Kang-min Liu <gugod@gugod.org>

LICENCE AND COPYRIGHT ^

Copyright (c) 2008, 2009, Kang-min Liu <gugod@gugod.org>.

This is free software, licensed under:

    The MIT (X11) License

DISCLAIMER OF WARRANTY ^

BECAUSE THIS SOFTWARE IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY FOR THE SOFTWARE, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE SOFTWARE "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE SOFTWARE IS WITH YOU. SHOULD THE SOFTWARE PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR, OR CORRECTION.

IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR REDISTRIBUTE THE SOFTWARE AS PERMITTED BY THE ABOVE LICENCE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE SOFTWARE (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE SOFTWARE TO OPERATE WITH ANY OTHER SOFTWARE), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.

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