Be more careful avoiding warnings when the init_arg is undef.

diff --git a/lib/MooseX/UndefTolerant/Attribute.pm b/lib/MooseX/UndefTolerant/Attribute.pm
index c5c3579..970b70b 100644 (file)
--- a/lib/MooseX/UndefTolerant/Attribute.pm
+++ b/lib/MooseX/UndefTolerant/Attribute.pm
@@ -9,7 +9,7 @@ around('initialize_instance_slot', sub {
 
     # $_[2] is the hashref of options passed to the constructor. If our
     # parameter passed in was undef, pop it off the args...
-    pop unless (exists($_[2]->{$ia}) && defined($_[2]->{$ia}));
+    pop unless (defined $ia && exists($_[2]->{$ia}) && defined($_[2]->{$ia}));
 
     # Invoke the real init, as the above line cleared the unef
     $self->$orig(@_)

diff --git a/lib/MooseX/UndefTolerant/Constructor.pm b/lib/MooseX/UndefTolerant/Constructor.pm
index e89b609..47d8128 100644 (file)
--- a/lib/MooseX/UndefTolerant/Constructor.pm
+++ b/lib/MooseX/UndefTolerant/Constructor.pm
@@ -6,11 +6,19 @@ around('_generate_slot_initializer', sub {
         my $self = shift;
         my $attr = $self->_attributes->[$_[0]]->init_arg;
 
-        my $tolerant_code = 
-             qq# delete \$params->{'$attr'} unless # . 
-             qq# exists \$params->{'$attr'} && defined \$params->{'$attr'};\n#;
+        # insert a line of code at the start of the initializer,
+        # clearing the param if it's undefined.
 
-        return $tolerant_code . $self->$orig(@_);
+        if (defined $attr) {
+                my $tolerant_code = 
+                     qq# delete \$params->{'$attr'} unless # . 
+                     qq# exists \$params->{'$attr'} && defined \$params->{'$attr'};\n#;
+
+                return $tolerant_code . $self->$orig(@_);
+        }
+        else {
+                return $self->$orig(@_);
+        }
 });
 
 no Moose::Role;