Documentation for method
bool-only assembled from the following types:
By default is not implemented, but expected implementation for types that do this role is: Defined as:
method bool-only(--> Bool)
If implemented, it is expected to return
True if the iterator can still produce values without actually producing them. The returned number must adjust itself for items already pulled, so that the method can be called on a partially consumed
It will be used in situations where the encompassing
Seq is evaluated in a
Important: it's expected the
Iterators that implement this method can produce that answer without producing any values. In other words, it's expected that the iterator can produce as many values as it could even if this method was not called.
The Iterator role does not implement this method.