In your IO::File wrapper you should override isa. Why not? It completes the wrap properly. This is a good argument for isa.
But you can't. Sorry for not spelling it out earlier, but there's nothing I can do in my wrapper class to make: 
UNIVERSAL::isa($object_of_my_class, "IO::File")

[download]
return true. Yes, I could make: 
$object_of_my_class->isa("IO::File")

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return true, but nobody does that any more because it breaks if the item in question is not a blessed reference. Everyone uses the subroutine form now.

So, we lose. We all lose. Some place, we've got to push it so it works. I'm saying to do that with either eval wrappers or capability testing with can, not isa.

-- Randal L. Schwartz, Perl hacker
Be sure to read my standard disclaimer if this is a reply.

In reply to •Re: Re: •Re: Re: •Re: Re: Say no to ref $thing eq "Expected::Type" by merlyn
in thread Putting file contents into a scalar by ByteOrNybble

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