[ViewVC] Diff of: cvs/Guard/Guard.pm

Comparing Guard/Guard.pm (file contents):
Revision 1.14 by root, Sat Dec 13 22:05:20 2008 UTC vs.
Revision 1.20 by root, Mon Jun 1 10:33:16 2009 UTC

    # to go back to "/" no matter how myfun exits:
    sub myfun {
       scope_guard { chdir "/" };
       chdir "/etc";
-      call_function_that_might_die_or_other_fun_stuff;
+      code_that_might_die_or_does_other_fun_stuff;
    }
+   # create an object that, when the last reference to it is gone,
+   # invokes the given codeblock:
+   my $guard = guard { print "destroyed!\n" };
+   undef $guard; # probably destroyed here
 =head1 DESCRIPTION
 This module implements so-called "guards". A guard is something (usually
 an object) that "guards" a resource, ensuring that it is cleaned up when
 package Guard;
 no warnings;
 BEGIN {
-   $VERSION = '0.5';
+   $VERSION = '1.02';
    @ISA = qw(Exporter);
    @EXPORT = qw(guard scope_guard);
    require Exporter;
 =head1 THANKS
 Thanks to Marco Maisenhelder, who reminded me of the C<$Guard::DIED>
 solution to the problem of exceptions.
+=head1 SEE ALSO
+L<Scope::Guard> and L<Sub::ScopeFinalizer>, which actually implement
+dynamic, not scoped guards, and have a lot higher CPU, memory and typing
+overhead.
+L<Hook::Scope>, which has apparently never been finished and corrupts
+memory when used.
 =cut

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