If you use attributes with multiple arguments like so:
sub foo : myattr(one, two) { }
then it's important to realize that the attribute arguments are parsed differently under Perl 5.8 vs. Perl 5.10. In 5.8, you get a string like "one, two" passed to your :ATTR sub. Under 5.10, you instead get an arrayref like ['one', 'two'].
I had some 5.8 code that parsed the attribute args like so:
my @args = split /\s*,\s*/, $args
which resulted in @args containing 'ARRAY[0x123456]' under 5.10! My new workaround that is compatible with 5.8 and 5.10 is:
my @args = ref $args ? @{$args} : split /\s*,\s*/, $args;
If anyone sees flaws in this workaround, or has a better explanation, please comment.
