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Added apply, unapplySeq and newBuilder to ArraySeq companion #227

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Jun 25, 2019
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Added apply, unapplySeq and newBuilder to ArraySeq companion #227

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13 changes: 12 additions & 1 deletion compat/src/main/scala-2.11_2.12/scala/collection/compat/immutable/ArraySeq.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -58,7 +58,7 @@ abstract class ArraySeq[+T] extends AbstractSeq[T] with IndexedSeq[T] {
/** Creates new builder for this collection ==> move to subclasses
*/
override protected[this] def newBuilder: Builder[T, ArraySeq[T]] =
new WrappedArrayBuilder[T](elemTag).mapResult(w => ArraySeq.unsafeWrapArray(w.array))
ArraySeq.newBuilder[T](elemTag)

}

Expand All @@ -69,6 +69,17 @@ object ArraySeq {
private val EmptyArraySeq = new ofRef[AnyRef](new Array[AnyRef](0))
def empty[T <: AnyRef]: ArraySeq[T] = EmptyArraySeq.asInstanceOf[ArraySeq[T]]

def newBuilder[T](implicit elemTag: ClassTag[T]): Builder[T, ArraySeq[T]] =
new WrappedArrayBuilder[T](elemTag).mapResult(w => unsafeWrapArray(w.array))

def apply[T](elems: T*)(implicit elemTag: ClassTag[T]): ArraySeq[T] = {
val b = newBuilder[T]
b ++= elems
b.result()
}

def unapplySeq[T](seq: ArraySeq[T]): Some[ArraySeq[T]] = Some(seq)

/**
* Wrap an existing `Array` into an `ArraySeq` of the proper primitive specialization type
* without copying.
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