David Golden wrote:
Steffen Mueller wrote:
John Peacock schrieb:
David Golden wrote:
(Though technically, it really ought to check that the ref equals
"Module::Build::Version").
No, that would be wrong too. Never test a ref() against a specific
object
class, since it paints you into a corner with inheritance. You
really have to
do isa() if you want to test that way...
Since isa() can have a few surprises also, I tend to use
_INSTANCE($obj, 'Class') from Adam's small and useful Params::Util
module. It's guaranteed to work as advertised. isa() might be
overridden if called as a function (bad) or fail if called as a method
on a non-object.
But since this is Module::Build, we don't want to go around adding
dependencies like that, even if they are useful. (Though cut-and-paste
is a possibility.)
Indeed, they are designed to also be relatively easily cut-and-pastable.
Adam K
