From 1d9e1ab49a01c412515e93b36f92a41590d8ab56 Mon Sep 17 00:00:00 2001
From: Wolfram Schneider <wosch@indexdata.dk>
Date: Wed, 14 Apr 2010 09:35:38 +0000
Subject: [PATCH] import Scalar::Util to test weaken references of perl
 objects

---
 lib/ZOOM/IRSpy/Node.pm   |    5 ++++-
 lib/ZOOM/IRSpy/Record.pm |    8 +++++++-
 lib/ZOOM/IRSpy/Stats.pm  |    2 ++
 lib/ZOOM/IRSpy/Task.pm   |    9 ++++++++-
 lib/ZOOM/IRSpy/Test.pm   |    2 ++
 lib/ZOOM/IRSpy/Utils.pm  |    2 ++
 6 files changed, 25 insertions(+), 3 deletions(-)

diff --git a/lib/ZOOM/IRSpy/Node.pm b/lib/ZOOM/IRSpy/Node.pm
index f912b94..9d2f5c7 100644
--- a/lib/ZOOM/IRSpy/Node.pm
+++ b/lib/ZOOM/IRSpy/Node.pm
@@ -6,6 +6,7 @@ use 5.008;
 use strict;
 use warnings;
 
+use Scalar::Util;
 
 =head1 NAME
 
@@ -57,13 +58,15 @@ changed.
 sub new {
     my $class = shift();
     my($name, @subnodes) = @_;
-    return bless {
+    my $this = bless {
 	name => $name,
 	subnodes => \@subnodes,
 	address => undef,	# filled in by resolve()
 	previous => undef,	# filled in by resolve()
 	next => undef,		# filled in by resolve()
     }, $class;
+
+    return $this;
 }
 
 =head2 name()
diff --git a/lib/ZOOM/IRSpy/Record.pm b/lib/ZOOM/IRSpy/Record.pm
index 7444d70..e80fe12 100644
--- a/lib/ZOOM/IRSpy/Record.pm
+++ b/lib/ZOOM/IRSpy/Record.pm
@@ -8,6 +8,7 @@ use 5.008;
 use strict;
 use warnings;
 
+use Scalar::Util;
 use XML::LibXML;
 use XML::LibXML::XPathContext;
 use ZOOM::IRSpy::Utils qw(xml_encode isodate irspy_xpath_context);
@@ -36,12 +37,17 @@ sub new {
 
     ### Parser should be in the IRSpy object
     my $parser = new XML::LibXML();
-    return bless {
+    my $this = bless {
 	irspy => $irspy,
 	target => $target,
 	parser => $parser,
 	zeerex => $parser->parse_string($zeerex)->documentElement(),
     }, $class;
+
+    #Scalar::Util::weaken($this->{irspy});
+    #Scalar::Util::weaken($this->{parser});
+
+    return $this;
 }
 
 
diff --git a/lib/ZOOM/IRSpy/Stats.pm b/lib/ZOOM/IRSpy/Stats.pm
index af667dc..f701740 100644
--- a/lib/ZOOM/IRSpy/Stats.pm
+++ b/lib/ZOOM/IRSpy/Stats.pm
@@ -5,6 +5,8 @@ package ZOOM::IRSpy::Stats;
 use 5.008;
 use strict;
 use warnings;
+
+use Scalar::Util;
 use ZOOM::IRSpy::Utils qw(irspy_xpath_context);
 
 =head1 NAME
diff --git a/lib/ZOOM/IRSpy/Task.pm b/lib/ZOOM/IRSpy/Task.pm
index 8e3f251..4340198 100644
--- a/lib/ZOOM/IRSpy/Task.pm
+++ b/lib/ZOOM/IRSpy/Task.pm
@@ -6,6 +6,8 @@ use 5.008;
 use strict;
 use warnings;
 
+use Scalar::Util;
+
 =head1 NAME
 
 ZOOM::IRSpy::Task - base class for tasks in IRSpy
@@ -34,7 +36,7 @@ sub new {
     my $class = shift();
     my($conn, $udata, $options, %cb) = @_;
 
-    return bless {
+    my $this = bless {
 	irspy => $conn->{irspy},
 	conn => $conn,
 	udata => $udata,
@@ -42,6 +44,11 @@ sub new {
 	cb => \%cb,
 	timeRegistered => time(),
     }, $class;
+
+    #Scalar::Util::weaken($this->{irspy});
+    #Scalar::Util::weaken($this->{udata});
+
+    return $this;
 }
 
 
diff --git a/lib/ZOOM/IRSpy/Test.pm b/lib/ZOOM/IRSpy/Test.pm
index e73061a..765cd4f 100644
--- a/lib/ZOOM/IRSpy/Test.pm
+++ b/lib/ZOOM/IRSpy/Test.pm
@@ -6,6 +6,8 @@ use 5.008;
 use strict;
 use warnings;
 
+use Scalar::Util;
+
 =head1 NAME
 
 ZOOM::IRSpy::Test - base class for tests in IRSpy
diff --git a/lib/ZOOM/IRSpy/Utils.pm b/lib/ZOOM/IRSpy/Utils.pm
index 0b1f646..b1d2331 100644
--- a/lib/ZOOM/IRSpy/Utils.pm
+++ b/lib/ZOOM/IRSpy/Utils.pm
@@ -6,6 +6,8 @@ use 5.008;
 use strict;
 use warnings;
 
+use Scalar::Util;
+
 use Exporter 'import';
 our @EXPORT_OK = qw(utf8param
 		    isodate
-- 
1.7.10.4