Devel::GlobalDestruction(3) User Contributed Perl Documentation Devel::GlobalDestruction(3)NAME
Devel::GlobalDestruction - Provides function returning the equivalent of "${^GLOBAL_PHASE} eq 'DESTRUCT'" for older perls.
SYNOPSIS
package Foo;
use Devel::GlobalDestruction;
use namespace::clean; # to avoid having an "in_global_destruction" method
sub DESTROY {
return if in_global_destruction;
do_something_a_little_tricky();
}
DESCRIPTION
Perl's global destruction is a little tricky to deal with WRT finalizers because it's not ordered and objects can sometimes disappear.
Writing defensive destructors is hard and annoying, and usually if global destruction is happening you only need the destructors that free
up non process local resources to actually execute.
For these constructors you can avoid the mess by simply bailing out if global destruction is in effect.
EXPORTS
This module uses Sub::Exporter::Progressive so the exports may be renamed, aliased, etc. if Sub::Exporter is present.
in_global_destruction
Returns true if the interpreter is in global destruction. In perl 5.14+, this returns "${^GLOBAL_PHASE} eq 'DESTRUCT'", and on earlier
perls, detects it using the value of "PL_main_cv" or "PL_dirty".
AUTHORS
Yuval Kogman <nothingmuch@woobling.org>
Florian Ragwitz <rafl@debian.org>
Jesse Luehrs <doy@tozt.net>
Peter Rabbitson <ribasushi@cpan.org>
Arthur Axel 'fREW' Schmidt <frioux@gmail.com>
Elizabeth Mattijsen <liz@dijkmat.nl>
Greham Knop <haarg@haarg.org>
COPYRIGHT
Copyright (c) 2008 Yuval Kogman. All rights reserved
This program is free software; you can redistribute
it and/or modify it under the same terms as Perl itself.
perl v5.18.2 2013-11-01 Devel::GlobalDestruction(3)
Check Out this Related Man Page
Devel::StackTrace::WithLexicals(3pm) User Contributed Perl Documentation Devel::StackTrace::WithLexicals(3pm)NAME
Devel::StackTrace::WithLexicals - Devel::StackTrace + PadWalker
SYNOPSIS
use Devel::StackTrace::WithLexicals;
my $trace = Devel::StackTrace::WithLexicals->new;
${ $trace->frame(1)->lexical('$self') }->oh_god_why();
DESCRIPTION
Devel::StackTrace is pretty good at generating stack traces.
PadWalker is pretty good at the inspection and modification of your callers' lexical variables.
Devel::StackTrace::WithLexicals is pretty good at generating stack traces with all your callers' lexical variables.
METHODS
All the same as Devel::StackTrace, except that frames (in class Devel::StackTrace::WithLexicals::Frame) also have a "lexicals" method. This
returns the same hashref as returned by PadWalker.
If the "no_refs" option to Devel::StackTrace is used, then each reference is stringified. This can be useful to avoid leaking memory.
Simple, really.
AUTHOR
Shawn M Moore, "sartak@gmail.com"
BUGS
I had to copy and paste some code from Devel::StackTrace to achieve this (it's hard to subclass). There may be bugs lingering here.
COPYRIGHT AND LICENSE
Copyright 2008-2009 Shawn M Moore.
Some portions written by Dave Rolsky, they belong to him.
This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
perl v5.14.2 2011-04-22 Devel::StackTrace::WithLexicals(3pm)
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