In CallFrame§
See primary documentation in context for sub callframe.
sub callframe(Int:D $level = 0)
Returns a CallFrame
object for the given level. If no level is given, the default level is 0. Positive levels move up the frame stack and negative levels move down (into the call to callframe
and deeper).
Returns Mu
if there is no call information for the given level. Negative levels may result in an exception.