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Mar 10, 2005, 3:00:21 AM3/10/05

to Perl 6 Internals

- Array, PerlArray, Hash, PerlHash clone is a deep copy
- {Fixed,Resizable}PMCArray is a shallow copy

The deep copy of Array and Hash breaks (infinite recursion) with
self-referential structures.

I think the deep copy should be a shallow copy.
Deep copy can always be done in a safe way by freeze/thaw.

leo

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