DOKK / manpages / debian 11 / libaspect-perl / Aspect::Guard.3pm.en
Aspect::Guard(3pm) User Contributed Perl Documentation Aspect::Guard(3pm)

Aspect::Guard - General purpose guard object for destroy-time actions

  SCOPE: {
  
      my $guard = Aspect::Guard->new( sub {
          print "Goodbye World!\n";
      } );
  
  }
  # Prints here as it exits the scope

The Aspect::Guard class shipping with Aspect is a convenience module for creating "CODE" based objects that execute when they fall out of scope.

It's usage is effectively summarised by the synopsis.

  my $guard = Aspect::Guard->new( sub { do_something(); } );

The "new" method creates a new guard object. It takes a single "CODE" references as a parameter, which it will bless into the guard class, which will execute the code reference when it's "DESTROY" hook is called.

Adam Kennedy <adamk@cpan.org>

Copyright 2011 - 2013 Adam Kennedy.

This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

2021-01-07 perl v5.32.0