Provided by: libsystem-sub-perl_0.162800-2_all
System::Sub::AutoLoad - Auto-wrap external commands as DWIM subs
Basic usage Any unknown sub will become a "System::Sub". use System::Sub::AutoLoad; my $hostname = hostname(); Usage with forward declaration Allows to avoid using parentheses. "System::Sub" import stays lazy. use System::Sub::AutoLoad qw(hostname); my $hostname = hostname; Usage with forward declaration command options Options definitions will be checked lazily at the first call to the AUTOLOAD for that sub. use System::Sub::AutoLoad hostname => [ 0 => '/bin/hostname' ]; my $hostname = hostname;
Any unknown sub in your code will be transformed into a "System::Sub" at its first call. This is lazy <http://en.wikipedia.org/wiki/Lazy_evaluation> import for "System::Sub". To avoid using parentheses after the sub name, you usually have to predeclare the sub with either a forward declaration (a sub without body such as "sub foo;") or with the "subs" module. With "Sytem::Sub::AutoLoad" you can simply list the subs names on the "use" line and that will be done for you. You can also pass "System::Sub" options to the sub, but they will be lazily analysed: this is the full "System::Sub" power, but with lazy import. Implementation details This module exports an AUTOLOAD sub that will import the sub with "System::Sub" at its first call.
Olivier Mengué, "email@example.com".
COPYRIGHT & LICENSE
Copyright © 2012 Olivier Mengué. This library is free software; you can redistribute it and/or modify it under the same terms as Perl 5 itself.