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If someone did repplace can(), he must know what he's doing.

Yes, but your code won't let him do it. If I'd written a plugin with a custom can(), to make it work with your program, I'd have to override UNIVERSAL::can()! Putting specific code to make a subclass work in a superclass (let alone the ultimate superclass) is bad design.

I understand that your code tries to ensure that everything in @plugins actually represents a valid invocant. That's well-worth doing, but I think you're forcing behavior of the plugins beyond the minimum you need to do what you're doing.

You've created a plugin system because you don't know what people will need to do to solve problems in the future. Don't enforce too many restrictions on how they'll solve those problems!


In reply to Re^3: Draft - Writng pluggable programs with perl. by chromatic
in thread Draft - Writng plugable programs with perl. by yosefm

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