Revert "Moved ancillary methods off specialized traits."

This reverts commit 1d0372f84f9a7325a47beb55169cc454895ef74b.

I forgot about polymorphic dispatch.  Have to seek another way.

1 files changed, 14 insertions, 0 deletions

diff --git a/src/library/scala/Function2.scala b/src/library/scala/Function2.scala
index 5ea2b411bb..cacb96ef5d 100644
--- a/src/library/scala/Function2.scala
+++ b/src/library/scala/Function2.scala
@@ -37,6 +37,20 @@ trait Function2[@specialized(scala.Int, scala.Long, scala.Double) -T1, @speciali
    *  @return   the result of function application.
    */
   def apply(v1: T1, v2: T2): R
+  /** Creates a curried version of this function.
+   *
+   *  @return   a function `f` such that `f(x1)(x2) == apply(x1, x2)`
+   */  def curried: T1 => T2 => R = {
+    (x1: T1) => (x2: T2) => apply(x1, x2)
+  }
 
+  /** Creates a tupled version of this function: instead of 2 arguments,
+   *  it accepts a single [[scala.Tuple2]] argument.
+   *
+   *  @return   a function `f` such that `f((x1, x2)) == f(Tuple2(x1, x2)) == apply(x1, x2)`
+   */
+  def tupled: Tuple2[T1, T2] => R = {
+    case Tuple2(x1, x2) => apply(x1, x2)
+  }
   override def toString() = "<function2>"
 }