| Name : perl-WeakRef
| |
| Version : 0.01
| Vendor : obs://build_opensuse_org/devel:languages:perl
|
| Release : lp154.1.1
| Date : 2023-01-27 17:23:47
|
| Group : Development/Libraries/Perl
| Source RPM : perl-WeakRef-0.01-lp154.1.1.src.rpm
|
| Size : 0.01 MB
| |
| Packager : https://www_suse_com/
| |
| Summary : An API to the Perl weak references
|
Description :
A patch to Perl 5.005_55 by the author implements a core API for weak
references. This module is a Perl-level interface to that API, allowing
weak references to be created in Perl.
A weak reference is just like an ordinary Perl reference except that it
isn\'t included in the reference count of the thing referred to. This means
that once all references to a particular piece of data are weak, the piece
of data is freed and all the weak references are set to undef. This is
particularly useful for implementing circular data structures without
memory leaks or caches of objects.
The command
use WeakRef;
exports two symbols to the user\'s namespace by default: \'weaken\' and
\'isweak\'. \'weaken\' takes a single argument, the reference to be weakened,
and returns the same value. The idiom
weaken($this->{Thing}->{Parent} = $this);
is useful.
The \'isweak\' command takes a single parameter and returns true if the
parameter is a weak reference, undef otherwise.
|
RPM found in directory: /packages/linux-pbone/ftp5.gwdg.de/pub/opensuse/repositories/devel:/languages:/perl:/CPAN-W/15.4/x86_64 |
