Massive redesign so that: scala> "hi" == "hi".r...

Massive redesign so that: scala> "hi" == "hi".reverse.reverse gives: res0: Boolean = true
Preparing to do similar things to arrays.

1 files changed, 50 insertions, 0 deletions

diff --git a/src/library/scala/LowPriorityImplicits.scala b/src/library/scala/LowPriorityImplicits.scala
new file mode 100644
index 0000000000..934c0f27e1
--- /dev/null
+++ b/src/library/scala/LowPriorityImplicits.scala
@@ -0,0 +1,50 @@
+/*                     __                                               *\
+**     ________ ___   / /  ___     Scala API                            **
+**    / __/ __// _ | / /  / _ |    (c) 2002-2009, LAMP/EPFL             **
+**  __\ \/ /__/ __ |/ /__/ __ |    http://scala-lang.org/               **
+** /____/\___/_/ |_/____/_/ | |                                         **
+**                          |/                                          **
+\*                                                                      */
+
+// $Id: Predef.scala 18558 2009-08-24 14:03:30Z moors $
+
+
+package scala
+
+import collection.mutable._
+import collection.immutable.WrappedString
+
+/** The `LowPriorityImplicits` class provides implicit values that are
+ *  valid in all Scala compilation units without explicit qualification, but that
+ *  are partially overridden by higher-priority conmversions in Predef
+ */
+class LowPriorityImplicits {
+
+  implicit def genericArrayWrapper[T](xs: Array[T]): WrappedArray[T] = (xs: AnyRef) match { // !!! drop the AnyRef and get unreachable code errors!
+    case x: Array[AnyRef] => arrayWrapper[AnyRef](x).asInstanceOf[WrappedArray[T]]
+    case x: Array[Int] => arrayWrapper(x).asInstanceOf[WrappedArray[T]]
+    case x: Array[Double] => arrayWrapper(x).asInstanceOf[WrappedArray[T]]
+    case x: Array[Long] => arrayWrapper(x).asInstanceOf[WrappedArray[T]]
+    case x: Array[Float] => arrayWrapper(x).asInstanceOf[WrappedArray[T]]
+    case x: Array[Char] => arrayWrapper(x).asInstanceOf[WrappedArray[T]]
+    case x: Array[Byte] => arrayWrapper(x).asInstanceOf[WrappedArray[T]]
+    case x: Array[Short] => arrayWrapper(x).asInstanceOf[WrappedArray[T]]
+    case x: Array[Boolean] => arrayWrapper(x).asInstanceOf[WrappedArray[T]]
+    case x: Array[Unit] => arrayWrapper(x).asInstanceOf[WrappedArray[T]]
+  }
+
+  implicit def arrayWrapper[T <: AnyRef](xs: Array[T]): WrappedRefArray[T] = new WrappedRefArray[T](xs.asInstanceOf[Array[AnyRef]])
+  implicit def arrayWrapper(xs: Array[Int]): WrappedIntArray = new WrappedIntArray(xs)
+  implicit def arrayWrapper(xs: Array[Double]): WrappedDoubleArray = new WrappedDoubleArray(xs)
+  implicit def arrayWrapper(xs: Array[Long]): WrappedLongArray = new WrappedLongArray(xs)
+  implicit def arrayWrapper(xs: Array[Float]): WrappedFloatArray = new WrappedFloatArray(xs)
+  implicit def arrayWrapper(xs: Array[Char]): WrappedCharArray = new WrappedCharArray(xs)
+  implicit def arrayWrapper(xs: Array[Byte]): WrappedByteArray = new WrappedByteArray(xs)
+  implicit def arrayWrapper(xs: Array[Short]): WrappedShortArray = new WrappedShortArray(xs)
+  implicit def arrayWrapper(xs: Array[Boolean]): WrappedBooleanArray = new WrappedBooleanArray(xs)
+  implicit def arrayWrapper(xs: Array[Unit]): WrappedUnitArray = new WrappedUnitArray(xs)
+
+  implicit def wrapString(s: String): WrappedString = new WrappedString(s)
+  implicit def unwrapString(ws: WrappedString): String = ws.self
+
+}