diff options
Diffstat (limited to 'src/library/scala/collection/mutable/WrappedArrayBuilder.scala')
-rw-r--r-- | src/library/scala/collection/mutable/WrappedArrayBuilder.scala | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/src/library/scala/collection/mutable/WrappedArrayBuilder.scala b/src/library/scala/collection/mutable/WrappedArrayBuilder.scala index bfe95a11ab..5bc5811450 100644 --- a/src/library/scala/collection/mutable/WrappedArrayBuilder.scala +++ b/src/library/scala/collection/mutable/WrappedArrayBuilder.scala @@ -13,16 +13,17 @@ package collection package mutable import scala.reflect.ClassTag -import scala.runtime.ScalaRunTime._ /** A builder class for arrays. * + * This builder can be reused. + * * @tparam A type of elements that can be added to this builder. * @param tag class tag for objects of type `A`. * * @since 2.8 */ -class WrappedArrayBuilder[A](tag: ClassTag[A]) extends Builder[A, WrappedArray[A]] { +class WrappedArrayBuilder[A](tag: ClassTag[A]) extends ReusableBuilder[A, WrappedArray[A]] { @deprecated("use tag instead", "2.10.0") val manifest: ClassTag[A] = tag @@ -32,7 +33,7 @@ class WrappedArrayBuilder[A](tag: ClassTag[A]) extends Builder[A, WrappedArray[A private var size: Int = 0 private def mkArray(size: Int): WrappedArray[A] = { - val runtimeClass = arrayElementClass(tag) + val runtimeClass = tag.runtimeClass val newelems = runtimeClass match { case java.lang.Byte.TYPE => new WrappedArray.ofByte(new Array[Byte](size)).asInstanceOf[WrappedArray[A]] case java.lang.Short.TYPE => new WrappedArray.ofShort(new Array[Short](size)).asInstanceOf[WrappedArray[A]] @@ -73,12 +74,13 @@ class WrappedArrayBuilder[A](tag: ClassTag[A]) extends Builder[A, WrappedArray[A this } - def clear() { - size = 0 - } + def clear() { size = 0 } def result() = { - if (capacity != 0 && capacity == size) elems + if (capacity != 0 && capacity == size) { + capacity = 0 + elems + } else mkArray(size) } |