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Diffstat (limited to 'src/library/scalax/collection/generic/LazyBuilder.scala')
-rwxr-xr-x | src/library/scalax/collection/generic/LazyBuilder.scala | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/src/library/scalax/collection/generic/LazyBuilder.scala b/src/library/scalax/collection/generic/LazyBuilder.scala new file mode 100755 index 0000000000..74764351b6 --- /dev/null +++ b/src/library/scalax/collection/generic/LazyBuilder.scala @@ -0,0 +1,24 @@ +/* __ *\ +** ________ ___ / / ___ Scala API ** +** / __/ __// _ | / / / _ | (c) 2003-2009, LAMP/EPFL ** +** __\ \/ /__/ __ |/ /__/ __ | http://scala-lang.org/ ** +** /____/\___/_/ |_/____/_/ | | ** +** |/ ** +\* */ + +// $Id: ListBuffer.scala 14378 2008-03-13 11:39:05Z dragos $ + +package scalax.collection.generic + +import collection.mutable.ListBuffer +import collection.immutable.{List, Nil, ::} + +abstract class LazyBuilder[+CC[B], A] extends Builder[CC, A] { + protected var parts = new ListBuffer[Iterator[A]] + def +=(x: A) = { parts += Iterator.single(x) } + override def ++=(xs: Iterator[A]) { parts += xs } + override def ++=(xs: Iterable[A]) { parts += xs.elements } + def elements: Iterator[A] = Iterator.iteratorIteratorWrapper(parts.elements).flatten // !!! can remove the wrapper once new compiler is in starr + def result: CC[A] + def clear() { parts.clear() } +} |