diff options
Diffstat (limited to 'src/library/scala/collection/convert/WrapAsJava.scala')
| -rw-r--r-- | src/library/scala/collection/convert/WrapAsJava.scala | 56 |
1 files changed, 33 insertions, 23 deletions
diff --git a/src/library/scala/collection/convert/WrapAsJava.scala b/src/library/scala/collection/convert/WrapAsJava.scala index 9916fe9843..e97a2ff1fc 100644 --- a/src/library/scala/collection/convert/WrapAsJava.scala +++ b/src/library/scala/collection/convert/WrapAsJava.scala @@ -30,8 +30,9 @@ trait WrapAsJava { * @return A Java Iterator view of the argument. */ implicit def asJavaIterator[A](it: Iterator[A]): ju.Iterator[A] = it match { - case JIteratorWrapper(wrapped) => wrapped.asInstanceOf[ju.Iterator[A]] - case _ => IteratorWrapper(it) + case null => null + case JIteratorWrapper(wrapped) => wrapped.asInstanceOf[ju.Iterator[A]] + case _ => IteratorWrapper(it) } /** @@ -48,8 +49,9 @@ trait WrapAsJava { * @return A Java Enumeration view of the argument. */ implicit def asJavaEnumeration[A](it: Iterator[A]): ju.Enumeration[A] = it match { + case null => null case JEnumerationWrapper(wrapped) => wrapped.asInstanceOf[ju.Enumeration[A]] - case _ => IteratorWrapper(it) + case _ => IteratorWrapper(it) } /** @@ -66,8 +68,9 @@ trait WrapAsJava { * @return A Java Iterable view of the argument. */ implicit def asJavaIterable[A](i: Iterable[A]): jl.Iterable[A] = i match { - case JIterableWrapper(wrapped) => wrapped.asInstanceOf[jl.Iterable[A]] - case _ => IterableWrapper(i) + case null => null + case JIterableWrapper(wrapped) => wrapped.asInstanceOf[jl.Iterable[A]] + case _ => IterableWrapper(i) } /** @@ -82,8 +85,9 @@ trait WrapAsJava { * @return A Java Collection view of the argument. */ implicit def asJavaCollection[A](it: Iterable[A]): ju.Collection[A] = it match { - case JCollectionWrapper(wrapped) => wrapped.asInstanceOf[ju.Collection[A]] - case _ => new IterableWrapper(it) + case null => null + case JCollectionWrapper(wrapped) => wrapped.asInstanceOf[ju.Collection[A]] + case _ => new IterableWrapper(it) } /** @@ -100,8 +104,9 @@ trait WrapAsJava { * @return A Java List view of the argument. */ implicit def bufferAsJavaList[A](b: mutable.Buffer[A]): ju.List[A] = b match { - case JListWrapper(wrapped) => wrapped - case _ => new MutableBufferWrapper(b) + case null => null + case JListWrapper(wrapped) => wrapped + case _ => new MutableBufferWrapper(b) } /** @@ -118,8 +123,9 @@ trait WrapAsJava { * @return A Java List view of the argument. */ implicit def mutableSeqAsJavaList[A](seq: mutable.Seq[A]): ju.List[A] = seq match { - case JListWrapper(wrapped) => wrapped - case _ => new MutableSeqWrapper(seq) + case null => null + case JListWrapper(wrapped) => wrapped + case _ => new MutableSeqWrapper(seq) } /** @@ -136,8 +142,9 @@ trait WrapAsJava { * @return A Java List view of the argument. */ implicit def seqAsJavaList[A](seq: Seq[A]): ju.List[A] = seq match { - case JListWrapper(wrapped) => wrapped.asInstanceOf[ju.List[A]] - case _ => new SeqWrapper(seq) + case null => null + case JListWrapper(wrapped) => wrapped.asInstanceOf[ju.List[A]] + case _ => new SeqWrapper(seq) } /** @@ -154,8 +161,9 @@ trait WrapAsJava { * @return A Java Set view of the argument. */ implicit def mutableSetAsJavaSet[A](s: mutable.Set[A]): ju.Set[A] = s match { + case null => null case JSetWrapper(wrapped) => wrapped - case _ => new MutableSetWrapper(s) + case _ => new MutableSetWrapper(s) } /** @@ -172,8 +180,9 @@ trait WrapAsJava { * @return A Java Set view of the argument. */ implicit def setAsJavaSet[A](s: Set[A]): ju.Set[A] = s match { + case null => null case JSetWrapper(wrapped) => wrapped - case _ => new SetWrapper(s) + case _ => new SetWrapper(s) } /** @@ -190,9 +199,9 @@ trait WrapAsJava { * @return A Java Map view of the argument. */ implicit def mutableMapAsJavaMap[A, B](m: mutable.Map[A, B]): ju.Map[A, B] = m match { - //case JConcurrentMapWrapper(wrapped) => wrapped + case null => null case JMapWrapper(wrapped) => wrapped - case _ => new MutableMapWrapper(m) + case _ => new MutableMapWrapper(m) } /** @@ -210,9 +219,9 @@ trait WrapAsJava { * @return A Java `Dictionary` view of the argument. */ implicit def asJavaDictionary[A, B](m: mutable.Map[A, B]): ju.Dictionary[A, B] = m match { - //case JConcurrentMapWrapper(wrapped) => wrapped - case JDictionaryWrapper(wrapped) => wrapped - case _ => new DictionaryWrapper(m) + case null => null + case JDictionaryWrapper(wrapped) => wrapped + case _ => new DictionaryWrapper(m) } /** @@ -230,9 +239,9 @@ trait WrapAsJava { * @return A Java `Map` view of the argument. */ implicit def mapAsJavaMap[A, B](m: Map[A, B]): ju.Map[A, B] = m match { - //case JConcurrentMapWrapper(wrapped) => wrapped + case null => null case JMapWrapper(wrapped) => wrapped.asInstanceOf[ju.Map[A, B]] - case _ => new MapWrapper(m) + case _ => new MapWrapper(m) } /** @@ -251,8 +260,9 @@ trait WrapAsJava { * @return A Java `ConcurrentMap` view of the argument. */ implicit def mapAsJavaConcurrentMap[A, B](m: concurrent.Map[A, B]): juc.ConcurrentMap[A, B] = m match { + case null => null case JConcurrentMapWrapper(wrapped) => wrapped - case _ => new ConcurrentMapWrapper(m) + case _ => new ConcurrentMapWrapper(m) } } |