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author | Martin Odersky <odersky@gmail.com> | 2009-11-09 18:34:49 +0000 |
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committer | Martin Odersky <odersky@gmail.com> | 2009-11-09 18:34:49 +0000 |
commit | 7da30bf2d5195d1e7a156680b50167707f7a3d0a (patch) | |
tree | 083cd78a70a13ac5fab4609a2a2875be48501df0 /src/library | |
parent | 2aeae987765bd5a63954b89ac8428db97b0a369f (diff) | |
download | scala-7da30bf2d5195d1e7a156680b50167707f7a3d0a.tar.gz scala-7da30bf2d5195d1e7a156680b50167707f7a3d0a.tar.bz2 scala-7da30bf2d5195d1e7a156680b50167707f7a3d0a.zip |
added `locally' to Predef.
added overloaded hashes to Predef.
some small changes.
Diffstat (limited to 'src/library')
-rw-r--r-- | src/library/scala/Predef.scala | 12 | ||||
-rw-r--r-- | src/library/scala/collection/mutable/BufferProxy.scala | 4 |
2 files changed, 16 insertions, 0 deletions
diff --git a/src/library/scala/Predef.scala b/src/library/scala/Predef.scala index df6cc61ee6..c3e0548183 100644 --- a/src/library/scala/Predef.scala +++ b/src/library/scala/Predef.scala @@ -91,11 +91,23 @@ object Predef extends LowPriorityImplicits { def currentThread = java.lang.Thread.currentThread() + @inline def locally[T](x: T): T = x + // hashcode ----------------------------------------------------------- @inline def hash(x: Any): Int = if (x.isInstanceOf[Number]) runtime.BoxesRunTime.numHash(x.asInstanceOf[Number]) else x.hashCode + @inline def hash(x: Number): Int = + runtime.BoxesRunTime.numHash(x.asInstanceOf[Number]) + + @inline def hash(x: Long): Int = { + val iv = x.intValue + if (iv == x.longValue) iv else x.hashCode + } + + @inline def hash(x: Int): Int = x + // errors and asserts ------------------------------------------------- def error(message: String): Nothing = throw new RuntimeException(message) diff --git a/src/library/scala/collection/mutable/BufferProxy.scala b/src/library/scala/collection/mutable/BufferProxy.scala index 343233e351..a31beda57b 100644 --- a/src/library/scala/collection/mutable/BufferProxy.scala +++ b/src/library/scala/collection/mutable/BufferProxy.scala @@ -40,6 +40,8 @@ trait BufferProxy[A] extends Buffer[A] with Proxy { * @param elem the element to append. * @return the updated buffer. */ + @deprecated("Use += instead if you intend to add by side effect to an existing collection.\n"+ + "Use `clone() ++=' if you intend to create a new collection.") override def +(elem: A): Buffer[A] = self.+(elem) /** Append a single element to this buffer. @@ -57,6 +59,8 @@ trait BufferProxy[A] extends Buffer[A] with Proxy { * @param iter the iterable object. * @return the updated buffer. */ + @deprecated("Use ++= instead if you intend to add by side effect to an existing collection.\n"+ + "Use `clone() ++=` if you intend to create a new collection.") def ++(iter: scala.collection.Iterable[A]): Buffer[A] = self.++(iter) /** Appends a number of elements provided by an iterable object |