From 907fd78c9bda27b429aaf7d555731c027d6d1cbb Mon Sep 17 00:00:00 2001
From: Adriaan Moors <adriaan.moors@epfl.ch>
Date: Thu, 22 Oct 2009 09:43:14 +0000
Subject: removed some of the code duplication that Marti...

removed some of the code duplication that Martin pointed out in my addition of def apply() to GenericCanBuildFrom
---
 src/library/scala/collection/IndexedSeq.scala                 | 5 +----
 src/library/scala/collection/Iterable.scala                   | 5 +----
 src/library/scala/collection/LinearSeq.scala                  | 5 +----
 src/library/scala/collection/Seq.scala                        | 5 +----
 src/library/scala/collection/Traversable.scala                | 5 +----
 src/library/scala/collection/generic/TraversableFactory.scala | 3 ++-
 src/library/scala/collection/immutable/IndexedSeq.scala       | 7 ++-----
 src/library/scala/collection/immutable/Iterable.scala         | 5 +----
 src/library/scala/collection/immutable/LinearSeq.scala        | 5 +----
 src/library/scala/collection/immutable/List.scala             | 6 +-----
 src/library/scala/collection/immutable/Seq.scala              | 6 +-----
 src/library/scala/collection/immutable/Stream.scala           | 5 +----
 src/library/scala/collection/immutable/Traversable.scala      | 5 +----
 src/library/scala/collection/mutable/ArrayBuffer.scala        | 5 +----
 src/library/scala/collection/mutable/Buffer.scala             | 5 +----
 src/library/scala/collection/mutable/DoubleLinkedList.scala   | 5 +----
 src/library/scala/collection/mutable/GenericArray.scala       | 5 +----
 src/library/scala/collection/mutable/IndexedSeq.scala         | 5 +----
 src/library/scala/collection/mutable/Iterable.scala           | 5 +----
 src/library/scala/collection/mutable/LinearSeq.scala          | 5 +----
 src/library/scala/collection/mutable/LinkedList.scala         | 5 +----
 src/library/scala/collection/mutable/ListBuffer.scala         | 8 ++------
 src/library/scala/collection/mutable/ResizableArray.scala     | 5 +----
 src/library/scala/collection/mutable/Seq.scala                | 5 +----
 src/library/scala/collection/mutable/Traversable.scala        | 5 +----
 25 files changed, 28 insertions(+), 102 deletions(-)

(limited to 'src')

diff --git a/src/library/scala/collection/IndexedSeq.scala b/src/library/scala/collection/IndexedSeq.scala
index d7945402bb..279651f31d 100644
--- a/src/library/scala/collection/IndexedSeq.scala
+++ b/src/library/scala/collection/IndexedSeq.scala
@@ -35,10 +35,7 @@ trait IndexedSeq[+A] extends Seq[A]
 
 object IndexedSeq extends SeqFactory[IndexedSeq] {
   override def empty[A]: IndexedSeq[A] = immutable.IndexedSeq.empty[A]
-  implicit def canBuildFrom[A]: CanBuildFrom[Coll, A, IndexedSeq[A]] =
-    new GenericCanBuildFrom[A] {
-      def apply() = newBuilder[A]
-    }
+  implicit def canBuildFrom[A]: CanBuildFrom[Coll, A, IndexedSeq[A]] = new GenericCanBuildFrom[A]
   def newBuilder[A]: Builder[A, IndexedSeq[A]] = immutable.IndexedSeq.newBuilder[A]
 
   @deprecated("use collection.mutable.IndexedSeq instead") type Mutable[A] = scala.collection.mutable.IndexedSeq[A]
diff --git a/src/library/scala/collection/Iterable.scala b/src/library/scala/collection/Iterable.scala
index 7ebfdd09e7..1e80fafbfc 100644
--- a/src/library/scala/collection/Iterable.scala
+++ b/src/library/scala/collection/Iterable.scala
@@ -66,10 +66,7 @@ trait Iterable[+A] extends Traversable[A]
  */
 object Iterable extends TraversableFactory[Iterable] {
 
-  implicit def canBuildFrom[A]: CanBuildFrom[Coll, A, Iterable[A]] =
-    new GenericCanBuildFrom[A] {
-      def apply() = newBuilder[A]
-    }
+  implicit def canBuildFrom[A]: CanBuildFrom[Coll, A, Iterable[A]] = new GenericCanBuildFrom[A]
   def newBuilder[A]: Builder[A, Iterable[A]] = immutable.Iterable.newBuilder[A]
 
   /** The minimum element of a non-empty sequence of ordered elements */
diff --git a/src/library/scala/collection/LinearSeq.scala b/src/library/scala/collection/LinearSeq.scala
index 3de68a1c2c..e81f2dba28 100644
--- a/src/library/scala/collection/LinearSeq.scala
+++ b/src/library/scala/collection/LinearSeq.scala
@@ -38,9 +38,6 @@ trait LinearSeq[+A] extends Seq[A]
  *  @since 2.8
  */
 object LinearSeq extends SeqFactory[LinearSeq] {
-  implicit def canBuildFrom[A]: CanBuildFrom[Coll, A, LinearSeq[A]] =
-    new GenericCanBuildFrom[A] {
-      def apply() = newBuilder[A]
-    }
+  implicit def canBuildFrom[A]: CanBuildFrom[Coll, A, LinearSeq[A]] = new GenericCanBuildFrom[A]
   def newBuilder[A]: Builder[A, LinearSeq[A]] = immutable.LinearSeq.newBuilder[A]
 }
diff --git a/src/library/scala/collection/Seq.scala b/src/library/scala/collection/Seq.scala
index dd939b408f..8ae857af32 100644
--- a/src/library/scala/collection/Seq.scala
+++ b/src/library/scala/collection/Seq.scala
@@ -46,10 +46,7 @@ object Seq extends SeqFactory[Seq] {
 
   private[collection] val hashSeed = "Seq".hashCode
 
-  implicit def canBuildFrom[A]: CanBuildFrom[Coll, A, Seq[A]] =
-    new GenericCanBuildFrom[A] {
-      def apply() = newBuilder[A]
-    }
+  implicit def canBuildFrom[A]: CanBuildFrom[Coll, A, Seq[A]] = new GenericCanBuildFrom[A]
   def newBuilder[A]: Builder[A, Seq[A]] = immutable.Seq.newBuilder[A]
 
   @deprecated("use View instead")
diff --git a/src/library/scala/collection/Traversable.scala b/src/library/scala/collection/Traversable.scala
index 6abdc67a70..2cf66e80a2 100644
--- a/src/library/scala/collection/Traversable.scala
+++ b/src/library/scala/collection/Traversable.scala
@@ -105,10 +105,7 @@ object Traversable extends TraversableFactory[Traversable] { self =>
   /** provide break functionality separate from client code */
   private[collection] val breaks: Breaks = new Breaks
 
-  implicit def canBuildFrom[A]: CanBuildFrom[Coll, A, Traversable[A]] =
-    new GenericCanBuildFrom[A] {
-      def apply() = newBuilder[A]
-    }
+  implicit def canBuildFrom[A]: CanBuildFrom[Coll, A, Traversable[A]] = new GenericCanBuildFrom[A]
   def newBuilder[A]: Builder[A, Traversable[A]] = immutable.Traversable.newBuilder[A]
 }
 
diff --git a/src/library/scala/collection/generic/TraversableFactory.scala b/src/library/scala/collection/generic/TraversableFactory.scala
index f5d548efa3..3e34f9097c 100644
--- a/src/library/scala/collection/generic/TraversableFactory.scala
+++ b/src/library/scala/collection/generic/TraversableFactory.scala
@@ -18,8 +18,9 @@ package generic
 abstract class TraversableFactory[CC[X] <: Traversable[X] with GenericTraversableTemplate[X, CC]]
   extends GenericCompanion[CC] {
 
-  abstract class GenericCanBuildFrom[A] extends CanBuildFrom[CC[_], A, CC[A]] {
+  class GenericCanBuildFrom[A] extends CanBuildFrom[CC[_], A, CC[A]] {
     def apply(from: Coll) = from.genericBuilder[A]
+    def apply() = newBuilder[A]
   }
 
   /** Concatenate all the argument collections into a single collection.
diff --git a/src/library/scala/collection/immutable/IndexedSeq.scala b/src/library/scala/collection/immutable/IndexedSeq.scala
index e3a29dce9c..f6a3fd81f4 100644
--- a/src/library/scala/collection/immutable/IndexedSeq.scala
+++ b/src/library/scala/collection/immutable/IndexedSeq.scala
@@ -36,10 +36,7 @@ trait IndexedSeq[+A] extends Seq[A]
  * @since 2.8
  */
 object IndexedSeq extends SeqFactory[IndexedSeq] {
-  implicit def canBuildFrom[A]: CanBuildFrom[Coll, A, IndexedSeq[A]] =
-    new GenericCanBuildFrom[A] {
-      def apply() = newBuilder[A]
-    }
+  implicit def canBuildFrom[A]: CanBuildFrom[Coll, A, IndexedSeq[A]] = new GenericCanBuildFrom[A]
   override def empty[A] = NewIndexedSeq.empty[A]
   def newBuilder[A]: Builder[A, IndexedSeq[A]] = NewIndexedSeq.newBuilder[A]
 }
@@ -58,7 +55,7 @@ trait NewIndexedSeq[+A]  extends IndexedSeq[A]
 
 object NewIndexedSeq extends SeqFactory[NewIndexedSeq] {
   private[immutable] val bf = new GenericCanBuildFrom[Nothing] {
-    def apply() = newBuilder[Nothing]
+    override def apply() = newBuilder[Nothing]
   }
   implicit def canBuildFrom[A]: CanBuildFrom[Coll, A, NewIndexedSeq[A]] =
     bf.asInstanceOf[CanBuildFrom[Coll, A, NewIndexedSeq[A]]]
diff --git a/src/library/scala/collection/immutable/Iterable.scala b/src/library/scala/collection/immutable/Iterable.scala
index c3c67f5953..e18fc29be8 100644
--- a/src/library/scala/collection/immutable/Iterable.scala
+++ b/src/library/scala/collection/immutable/Iterable.scala
@@ -37,10 +37,7 @@ trait Iterable[+A] extends Traversable[A]
  *  @since   2.8
  */
 object Iterable extends TraversableFactory[Iterable] {
-  implicit def canBuildFrom[A]: CanBuildFrom[Coll, A, Iterable[A]] =
-    new GenericCanBuildFrom[A] {
-      def apply() = newBuilder[A]
-    }
+  implicit def canBuildFrom[A]: CanBuildFrom[Coll, A, Iterable[A]] = new GenericCanBuildFrom[A]
   def newBuilder[A]: Builder[A, Iterable[A]] = new mutable.ListBuffer
 }
 
diff --git a/src/library/scala/collection/immutable/LinearSeq.scala b/src/library/scala/collection/immutable/LinearSeq.scala
index af5b26b38b..cb0029dd78 100644
--- a/src/library/scala/collection/immutable/LinearSeq.scala
+++ b/src/library/scala/collection/immutable/LinearSeq.scala
@@ -31,9 +31,6 @@ trait LinearSeq[+A] extends Seq[A]
  * @since 2.8
  */
 object LinearSeq extends SeqFactory[LinearSeq] {
-  implicit def canBuildFrom[A]: CanBuildFrom[Coll, A, LinearSeq[A]] =
-    new GenericCanBuildFrom[A] {
-      def apply() = newBuilder[A]
-    }
+  implicit def canBuildFrom[A]: CanBuildFrom[Coll, A, LinearSeq[A]] = new GenericCanBuildFrom[A]
   def newBuilder[A]: Builder[A, LinearSeq[A]] = new mutable.ListBuffer
 }
diff --git a/src/library/scala/collection/immutable/List.scala b/src/library/scala/collection/immutable/List.scala
index de6da65f81..59a5bfdf3a 100644
--- a/src/library/scala/collection/immutable/List.scala
+++ b/src/library/scala/collection/immutable/List.scala
@@ -502,11 +502,7 @@ object List extends SeqFactory[List] {
 
   import scala.collection.{Iterable, Seq, IndexedSeq}
 
-  implicit def canBuildFrom[A]: CanBuildFrom[Coll, A, List[A]] =
-    new GenericCanBuildFrom[A] {
-      def apply() = newBuilder[A]
-    }
-
+  implicit def canBuildFrom[A]: CanBuildFrom[Coll, A, List[A]] = new GenericCanBuildFrom[A]
   def newBuilder[A]: Builder[A, List[A]] = new ListBuffer[A]
 
   override def empty[A]: List[A] = Nil
diff --git a/src/library/scala/collection/immutable/Seq.scala b/src/library/scala/collection/immutable/Seq.scala
index 3b8bb07ba0..91c38eeaf8 100644
--- a/src/library/scala/collection/immutable/Seq.scala
+++ b/src/library/scala/collection/immutable/Seq.scala
@@ -31,10 +31,6 @@ trait Seq[+A] extends Iterable[A]
  * @since 2.8
  */
 object Seq extends SeqFactory[Seq] {
-  implicit def canBuildFrom[A]: CanBuildFrom[Coll, A, Seq[A]] =
-    new GenericCanBuildFrom[A] {
-      def apply() = newBuilder[A]
-    }
-
+  implicit def canBuildFrom[A]: CanBuildFrom[Coll, A, Seq[A]] = new GenericCanBuildFrom[A]
   def newBuilder[A]: Builder[A, Seq[A]] = new mutable.ListBuffer
 }
diff --git a/src/library/scala/collection/immutable/Stream.scala b/src/library/scala/collection/immutable/Stream.scala
index 903ec8446f..9855ce8a41 100644
--- a/src/library/scala/collection/immutable/Stream.scala
+++ b/src/library/scala/collection/immutable/Stream.scala
@@ -404,10 +404,7 @@ object Stream extends SeqFactory[Stream] {
    *        Stream as its From type parameter must yield a stream as its result parameter.
    *        If that assumption is broken, cast errors might result.
    */
-  class StreamCanBuildFrom[A] extends GenericCanBuildFrom[A] {
-    def apply() = newBuilder[A]
-  }
-
+  class StreamCanBuildFrom[A] extends GenericCanBuildFrom[A]
 
   implicit def canBuildFrom[A]: CanBuildFrom[Coll, A, Stream[A]] = new StreamCanBuildFrom[A]
 
diff --git a/src/library/scala/collection/immutable/Traversable.scala b/src/library/scala/collection/immutable/Traversable.scala
index 3d337c1992..239706ba71 100644
--- a/src/library/scala/collection/immutable/Traversable.scala
+++ b/src/library/scala/collection/immutable/Traversable.scala
@@ -37,9 +37,6 @@ trait Traversable[+A] extends scala.collection.Traversable[A]
  *  @since   2.8
  */
 object Traversable extends TraversableFactory[Traversable] {
-  implicit def canBuildFrom[A]: CanBuildFrom[Coll, A, Traversable[A]] =
-    new GenericCanBuildFrom[A] {
-      def apply() = newBuilder[A]
-    }
+  implicit def canBuildFrom[A]: CanBuildFrom[Coll, A, Traversable[A]] = new GenericCanBuildFrom[A]
   def newBuilder[A]: Builder[A, Traversable[A]] = new mutable.ListBuffer
 }
diff --git a/src/library/scala/collection/mutable/ArrayBuffer.scala b/src/library/scala/collection/mutable/ArrayBuffer.scala
index aabc696085..4e5f97f35c 100644
--- a/src/library/scala/collection/mutable/ArrayBuffer.scala
+++ b/src/library/scala/collection/mutable/ArrayBuffer.scala
@@ -168,10 +168,7 @@ class ArrayBuffer[A](override protected val initialSize: Int)
  *  @since   2.8
  */
 object ArrayBuffer extends SeqFactory[ArrayBuffer] {
-  implicit def canBuildFrom[A]: CanBuildFrom[Coll, A, ArrayBuffer[A]] =
-    new GenericCanBuildFrom[A] {
-      def apply() = newBuilder[A]
-    }
+  implicit def canBuildFrom[A]: CanBuildFrom[Coll, A, ArrayBuffer[A]] = new GenericCanBuildFrom[A]
   def newBuilder[A]: Builder[A, ArrayBuffer[A]] = new ArrayBuffer[A]
 }
 
diff --git a/src/library/scala/collection/mutable/Buffer.scala b/src/library/scala/collection/mutable/Buffer.scala
index 213a93aa5b..8f9bebce7c 100644
--- a/src/library/scala/collection/mutable/Buffer.scala
+++ b/src/library/scala/collection/mutable/Buffer.scala
@@ -34,10 +34,7 @@ trait Buffer[A] extends Seq[A]
 /** Factory object for <code>Buffer</code> trait.
  */
 object Buffer extends SeqFactory[Buffer] {
-  implicit def canBuildFrom[A]: CanBuildFrom[Coll, A, Buffer[A]] =
-    new GenericCanBuildFrom[A] {
-      def apply() = newBuilder[A]
-    }
+  implicit def canBuildFrom[A]: CanBuildFrom[Coll, A, Buffer[A]] = new GenericCanBuildFrom[A]
   def newBuilder[A]: Builder[A, Buffer[A]] = new ArrayBuffer
 }
 
diff --git a/src/library/scala/collection/mutable/DoubleLinkedList.scala b/src/library/scala/collection/mutable/DoubleLinkedList.scala
index a47ed40c54..6a4476d743 100644
--- a/src/library/scala/collection/mutable/DoubleLinkedList.scala
+++ b/src/library/scala/collection/mutable/DoubleLinkedList.scala
@@ -32,10 +32,7 @@ class DoubleLinkedList[A](_elem: A, _next: DoubleLinkedList[A]) extends LinearSe
 }
 
 object DoubleLinkedList extends SeqFactory[DoubleLinkedList] {
-  implicit def canBuildFrom[A]: CanBuildFrom[Coll, A, DoubleLinkedList[A]] = //new CanBuildFrom[Coll, A, DoubleLinkedList[A]] { : Coll) = from.traversableBuilder[A] }
-    new GenericCanBuildFrom[A] {
-      def apply() = newBuilder[A]
-    }
+  implicit def canBuildFrom[A]: CanBuildFrom[Coll, A, DoubleLinkedList[A]] = new GenericCanBuildFrom[A] //new CanBuildFrom[Coll, A, DoubleLinkedList[A]] { : Coll) = from.traversableBuilder[A] }
   def newBuilder[A]: Builder[A, DoubleLinkedList[A]] =
     new Builder[A, DoubleLinkedList[A]] {
       var current: DoubleLinkedList[A] = _
diff --git a/src/library/scala/collection/mutable/GenericArray.scala b/src/library/scala/collection/mutable/GenericArray.scala
index 290309e664..3af0ba8118 100644
--- a/src/library/scala/collection/mutable/GenericArray.scala
+++ b/src/library/scala/collection/mutable/GenericArray.scala
@@ -68,10 +68,7 @@ extends IndexedSeq[A]
 }
 
 object GenericArray extends SeqFactory[GenericArray] {
-  implicit def canBuildFrom[A]: CanBuildFrom[Coll, A, GenericArray[A]] =
-    new GenericCanBuildFrom[A] {
-      def apply() = newBuilder[A]
-    }
+  implicit def canBuildFrom[A]: CanBuildFrom[Coll, A, GenericArray[A]] = new GenericCanBuildFrom[A]
   def newBuilder[A]: Builder[A, GenericArray[A]] =
     new ArrayBuffer[A] mapResult { buf =>
       val result = new GenericArray[A](buf.length)
diff --git a/src/library/scala/collection/mutable/IndexedSeq.scala b/src/library/scala/collection/mutable/IndexedSeq.scala
index 25382d4d5f..540e57fca3 100644
--- a/src/library/scala/collection/mutable/IndexedSeq.scala
+++ b/src/library/scala/collection/mutable/IndexedSeq.scala
@@ -25,9 +25,6 @@ trait IndexedSeq[A] extends Seq[A]
 }
 
 object IndexedSeq extends SeqFactory[IndexedSeq] {
-  implicit def canBuildFrom[A]: CanBuildFrom[Coll, A, IndexedSeq[A]] =
-    new GenericCanBuildFrom[A] {
-      def apply() = newBuilder[A]
-    }
+  implicit def canBuildFrom[A]: CanBuildFrom[Coll, A, IndexedSeq[A]] = new GenericCanBuildFrom[A]
   def newBuilder[A]: Builder[A, IndexedSeq[A]] = new ArrayBuffer[A]
 }
diff --git a/src/library/scala/collection/mutable/Iterable.scala b/src/library/scala/collection/mutable/Iterable.scala
index 40195623b8..5d20664730 100644
--- a/src/library/scala/collection/mutable/Iterable.scala
+++ b/src/library/scala/collection/mutable/Iterable.scala
@@ -36,10 +36,7 @@ trait Iterable[A] extends Traversable[A]
  *  @version 2.8
  */
 object Iterable extends TraversableFactory[Iterable] {
-  implicit def canBuildFrom[A]: CanBuildFrom[Coll, A, Iterable[A]] =
-    new GenericCanBuildFrom[A] {
-      def apply() = newBuilder[A]
-    }
+  implicit def canBuildFrom[A]: CanBuildFrom[Coll, A, Iterable[A]] = new GenericCanBuildFrom[A]
   def newBuilder[A]: Builder[A, Iterable[A]] = new ArrayBuffer
 }
 
diff --git a/src/library/scala/collection/mutable/LinearSeq.scala b/src/library/scala/collection/mutable/LinearSeq.scala
index 649d6bdd11..f23b68c3c4 100644
--- a/src/library/scala/collection/mutable/LinearSeq.scala
+++ b/src/library/scala/collection/mutable/LinearSeq.scala
@@ -27,9 +27,6 @@ trait LinearSeq[A] extends Seq[A]
 }
 
 object LinearSeq extends SeqFactory[LinearSeq] {
-  implicit def canBuildFrom[A]: CanBuildFrom[Coll, A, LinearSeq[A]] =
-    new GenericCanBuildFrom[A] {
-      def apply() = newBuilder[A]
-    }
+  implicit def canBuildFrom[A]: CanBuildFrom[Coll, A, LinearSeq[A]] = new GenericCanBuildFrom[A]
   def newBuilder[A]: Builder[A, LinearSeq[A]] = new MutableList[A]
 }
diff --git a/src/library/scala/collection/mutable/LinkedList.scala b/src/library/scala/collection/mutable/LinkedList.scala
index 9d7adb1ebc..74fe104a27 100644
--- a/src/library/scala/collection/mutable/LinkedList.scala
+++ b/src/library/scala/collection/mutable/LinkedList.scala
@@ -32,10 +32,7 @@ class LinkedList[A](_elem: A, _next: LinkedList[A]) extends LinearSeq[A]
 }
 
 object LinkedList extends SeqFactory[LinkedList] {
-  implicit def canBuildFrom[A]: CanBuildFrom[Coll, A, LinkedList[A]] =
-    new GenericCanBuildFrom[A] {
-      def apply() = newBuilder[A]
-    }
+  implicit def canBuildFrom[A]: CanBuildFrom[Coll, A, LinkedList[A]] = new GenericCanBuildFrom[A]
   def newBuilder[A]: Builder[A, LinkedList[A]] =
     (new MutableList) mapResult ((l: MutableList[A]) => l.toLinkedList)
 }
diff --git a/src/library/scala/collection/mutable/ListBuffer.scala b/src/library/scala/collection/mutable/ListBuffer.scala
index 422c23f9ea..3891357b78 100644
--- a/src/library/scala/collection/mutable/ListBuffer.scala
+++ b/src/library/scala/collection/mutable/ListBuffer.scala
@@ -329,10 +329,6 @@ final class ListBuffer[A]
  *  @version 2.8
  */
 object ListBuffer extends SeqFactory[ListBuffer] {
-  implicit def canBuildFrom[A]: CanBuildFrom[Coll, A, ListBuffer[A]] =
-    new GenericCanBuildFrom[A] {
-      def apply() = newBuilder[A]
-    }
-  def newBuilder[A]: Builder[A, ListBuffer[A]] =
-    new AddingBuilder(new ListBuffer[A])
+  implicit def canBuildFrom[A]: CanBuildFrom[Coll, A, ListBuffer[A]] = new GenericCanBuildFrom[A]
+  def newBuilder[A]: Builder[A, ListBuffer[A]] = new AddingBuilder(new ListBuffer[A])
 }
diff --git a/src/library/scala/collection/mutable/ResizableArray.scala b/src/library/scala/collection/mutable/ResizableArray.scala
index 32485d36c6..a433d4f7f0 100644
--- a/src/library/scala/collection/mutable/ResizableArray.scala
+++ b/src/library/scala/collection/mutable/ResizableArray.scala
@@ -115,9 +115,6 @@ trait ResizableArray[A] extends IndexedSeq[A]
 }
 
 object ResizableArray extends SeqFactory[ResizableArray] {
-  implicit def canBuildFrom[A]: CanBuildFrom[Coll, A, ResizableArray[A]] =
-    new GenericCanBuildFrom[A] {
-      def apply() = newBuilder[A]
-    }
+  implicit def canBuildFrom[A]: CanBuildFrom[Coll, A, ResizableArray[A]] = new GenericCanBuildFrom[A]
   def newBuilder[A]: Builder[A, ResizableArray[A]] = new ArrayBuffer[A]
 }
diff --git a/src/library/scala/collection/mutable/Seq.scala b/src/library/scala/collection/mutable/Seq.scala
index 12786de749..e028d09923 100644
--- a/src/library/scala/collection/mutable/Seq.scala
+++ b/src/library/scala/collection/mutable/Seq.scala
@@ -36,9 +36,6 @@ trait Seq[A] extends Iterable[A]
  *  @since   2.8
  */
 object Seq extends SeqFactory[Seq] {
-  implicit def canBuildFrom[A]: CanBuildFrom[Coll, A, Seq[A]] =
-    new GenericCanBuildFrom[A] {
-      def apply() = newBuilder[A]
-    }
+  implicit def canBuildFrom[A]: CanBuildFrom[Coll, A, Seq[A]] = new GenericCanBuildFrom[A]
   def newBuilder[A]: Builder[A, Seq[A]] = new ArrayBuffer
 }
diff --git a/src/library/scala/collection/mutable/Traversable.scala b/src/library/scala/collection/mutable/Traversable.scala
index 947d8d3edd..9e18368111 100644
--- a/src/library/scala/collection/mutable/Traversable.scala
+++ b/src/library/scala/collection/mutable/Traversable.scala
@@ -34,10 +34,7 @@ trait Traversable[A] extends scala.collection.Traversable[A]
  *  @version 2.8
  */
 object Traversable extends TraversableFactory[Traversable] {
-  implicit def canBuildFrom[A]: CanBuildFrom[Coll, A, Traversable[A]] =
-    new GenericCanBuildFrom[A] {
-      def apply() = newBuilder[A]
-    }
+  implicit def canBuildFrom[A]: CanBuildFrom[Coll, A, Traversable[A]] = new GenericCanBuildFrom[A]
   def newBuilder[A]: Builder[A, Traversable[A]] = new ArrayBuffer
 }
 
-- 
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