PREV Limitations: What can't you do? NEXT

 

  • You can do quite a lot, but you can't do everything.

  • (If you heard my Scalar::Approx talk, you'll know about the difficulties I encountered trying to make that work with lexical variables)

  • You're restricted by the mechanisms that Perl provides. You can't make utterly arbitrary changes to code behaviour.

  • Now we'll look at a way that you could make utterly arbitrary changes, without restriction.
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