Re: When numeric conversion overloading goes awry.

[dragonchild]

in reply to When numeric conversion overloading goes awry.

Submit the following patch to the maintainer of Error.pm:

-exists $self->{'-value'} ? $self->{'-value'} : undef;
+exists $self->{'-value'} ? $self->{'-value'} : 0;

The bug is that 0+ should always return something that is a number. Undef, as you've discovered, isn't a number.

[dmitri]

That will technically work. Semantically, however, this may lead to problems -- I think SOAP::Serializer relies on this technique to generate unique IDs for objects. If there are two such Error objects, SOAP::Serializer may get confused. I will file a bug in Error.pm's CPAN page, however, as yours is a valid point.

[dragonchild]

Then that's a bug in Soap::Serializer. UIDs are a well-studied space with UUID and Data::UUID simply being two modules I've personally used. That should be filed, as well.