# New Ticket Created by Zefram
# Please include the string: [perl #126097]
# in the subject line of all future correspondence about this issue.
# <URL: https://rt.perl.org/Ticket/Display.html?id=126097 >
If .perl is used to serialise a value of 0 but True, it doesn't represent
the but-True aspect. Evaling the result produces a mundane false zero.
.WHICH and eqv recognise the difference.
$ ./perl6 -e 'my $a = 0 but True; say $a.perl; my $b = $a.perl.EVAL; say ?$a, "
", ?$b; say $a.WHICH, " ", $b.WHICH; say $b eqv $a'
0
True False
Int+{<anon>}|0 Int|0
False
The same goes for many other values modified by "but".
-zefram
