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| author | Paul Phillips <paulp@improving.org> | 2011-07-04 04:55:04 +0000 |
|---|---|---|
| committer | Paul Phillips <paulp@improving.org> | 2011-07-04 04:55:04 +0000 |
| commit | 54b26beb2c9a82fc5a1b3a66f11ed763bfad39be (patch) | |
| tree | 111a2081507c084b81918216cdfdaf185605961a /src/library/scala/collection/immutable/List.scala | |
| parent | 69b9d9858e6127d021e083d336e9629c12173698 (diff) | |
| download | scala-54b26beb2c9a82fc5a1b3a66f11ed763bfad39be.tar.gz scala-54b26beb2c9a82fc5a1b3a66f11ed763bfad39be.tar.bz2 scala-54b26beb2c9a82fc5a1b3a66f11ed763bfad39be.zip | |
Discovered another impressive source of unneces...
Discovered another impressive source of unnecessary garbage is every
collection creating a new GenericCanBuildFrom for every map ever
performed. They can all use the same one: they all have the same
implementation. It looks like tiark had already figured this out and
done it for Vector: I followed with the other fifty. I really haven't
the least idea who to have review most things. No review.
Diffstat (limited to 'src/library/scala/collection/immutable/List.scala')
| -rw-r--r-- | src/library/scala/collection/immutable/List.scala | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/library/scala/collection/immutable/List.scala b/src/library/scala/collection/immutable/List.scala index 563f14eac6..1781e7ba36 100644 --- a/src/library/scala/collection/immutable/List.scala +++ b/src/library/scala/collection/immutable/List.scala @@ -426,7 +426,8 @@ object List extends SeqFactory[List] { import scala.collection.{Iterable, Seq, IndexedSeq} /** $genericCanBuildFromInfo */ - implicit def canBuildFrom[A]: CanBuildFrom[Coll, A, List[A]] = new GenericCanBuildFrom[A] + implicit def canBuildFrom[A]: CanBuildFrom[Coll, A, List[A]] = + ReusableCBF.asInstanceOf[GenericCanBuildFrom[A]] def newBuilder[A]: Builder[A, List[A]] = new ListBuffer[A] |