Provide a asSeq facade for Chunk
BalmungSan opened this issue · 1 comments
Sometimes when interoperating all you want is to be able to pass a Chunk to a method that expects a Seq without having to actually copy data. The main argument is that such a method will iterate the sequence once to produce something else.
On top of this, it may also be good to provide an asJava facade as well, returning ju.List.
Technically speaking, asSeq would allow us to also call the asJava the stdlib already provides, but that would be a facade over a facade; not the end of the world but it may be a good tiny optimization.
It would be really nice to have such a method. However, my concern is that the Seq interface is supposed to be backed by some concrete collection. For example, it provides iterableFactory, which defaults to one from the object Seq. Also, there are a bunch of methods in Seq that use that factory for internal purposes (e.g. append, prependAll, etc). Therefore I doubt it is really feasible to be always non-copy with Seq.
The better bet could be SeqView (or even better IndexedSeqView), which is nothing but Seq without a factory per se.
But IIRC it only shows up in Scala 2.13, unfortunately.