A couple of the features that we're working towards are subclassibility and multiple engines. Which means DBM::Deep::Array could be subclassed by something that masquerades as an array using Contextual::Return or some other class that overloads @{}. Why should I prevent that when I prefer to use code that ducktypes $_[0] vs. explicit-types it?
My criteria for good software:
  1. Does it work?
  2. Can someone else come in, make a change, and be reasonably certain no bugs were introduced?

In reply to Re^4: eval-blocks and Test::Builder by dragonchild
in thread eval-blocks and Test::Builder by dragonchild

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