# New Ticket Created by "Carl Mäsak"
# Please include the string: [perl #68572]
# in the subject line of all future correspondence about this issue.
# <URL: http://rt.perl.org/rt3/Ticket/Display.html?id=68572 >
<masak> rakudo: role Maybe[::T] { role Just[T] {} }; say Maybe[Int].new()
<p6eval> rakudo 0d4fe0: OUTPUT«Potential internal error: bindability
check may have done more than just binding. [...]
<masak> what does that error mean?
<jnthn> First off, nesting roles inside roles is probably wrong unless
they're lexically scoped...
<jnthn> Well, the inner one is...
<jnthn> The error is an internals check that I put in to detect
certain things going awry.
<jnthn> Because it's a lot better than something silently going wrong,
and just causing oddness later on that would take ages to unpick and
debug.
<jnthn> Feel free to file a rakudobug anyway.
<jnthn> Since it's in theory something that should never occur.
<jnthn> rakudo: role Maybe[::T] { }; say Maybe[Int].new()
<p6eval> rakudo 0d4fe0: OUTPUT«()<0xb69cc438>»
<jnthn> rakudo: role Maybe[::T] { role Foo { } }; say Maybe[Int].new()
<p6eval> rakudo 0d4fe0: OUTPUT«()<0xb69a62f8>»
<jnthn> rakudo: role Maybe[::T] { role Foo[T $] { } }; say Maybe[Int].new()
<p6eval> rakudo 0d4fe0: OUTPUT«Potential internal error: bindability
check may have done more than just binding. [...]
<jnthn> heh
<jnthn> Anyway, I suspect Rakudo * may well just forbid nesting other
packages inside roles.
<masak> fair enough.
* masak submits rakudobug
