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author | Martin Odersky <odersky@gmail.com> | 2013-11-25 11:31:46 +0100 |
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committer | Martin Odersky <odersky@gmail.com> | 2013-11-25 11:34:04 +0100 |
commit | 45ea511ec8ef12e0a192e4f4925923e75ef9ae3a (patch) | |
tree | f498f664b8a2b7133c86bc37c481aafccfef99b3 /src/dotty/tools/dotc/core/Decorators.scala | |
parent | 92ed954f361ed08ef4821afd530357379956904a (diff) | |
download | dotty-45ea511ec8ef12e0a192e4f4925923e75ef9ae3a.tar.gz dotty-45ea511ec8ef12e0a192e4f4925923e75ef9ae3a.tar.bz2 dotty-45ea511ec8ef12e0a192e4f4925923e75ef9ae3a.zip |
Types refactorings
- moving out type applicaton related operations to a decorator: TypeApplications
- converting some set operations to list operations to make them replayable.
- moving unused operations to Types.overflow
Diffstat (limited to 'src/dotty/tools/dotc/core/Decorators.scala')
-rw-r--r-- | src/dotty/tools/dotc/core/Decorators.scala | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/src/dotty/tools/dotc/core/Decorators.scala b/src/dotty/tools/dotc/core/Decorators.scala index eb287f411..ca601cddf 100644 --- a/src/dotty/tools/dotc/core/Decorators.scala +++ b/src/dotty/tools/dotc/core/Decorators.scala @@ -105,6 +105,12 @@ object Decorators { else ys.nonEmpty && loop(xs.tail, ys.tail) loop(xs, ys) } + + /** Union on lists seen as sets */ + def | (ys: List[T]): List[T] = xs ++ (ys filterNot (xs contains _)) + + /** Intersection on lists seen as sets */ + def & (ys: List[T]): List[T] = xs filter (ys contains _) } implicit class ListOfListDecorator[T](val xss: List[List[T]]) extends AnyVal { |