Make PP more extensible #3
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It seems fine. |
So that the `pp` method can work in inherited classes with that class.
The method which prints single pair of a hash, to make extending pretty printing Hash easier, apart from Hash construct itself.
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Since
PP.pphardcodesPPto call its class method,ppmethod in inherited classes also usesPPinstance instead of its owner class.That means such class has to implement its own
pp, or copy fromPP.The first commit in this PR makes this binding loose, and helps to implement such classes.