Perl 6 More laziness and lists #30

Range is interesting

Early implementations had a separate RangeIter class

✗ Lots of attribute coupling between Range and RangeIter

But Range objects are immutable

Will always return the same sequence of values

Thus Range.reify($n) can easily compute and return values and the Range needed to continue the sequence

> (0..10).reify(5).perl
(0, 1, 2, 3, 4, 5..10)
continued...
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