diff options
Diffstat (limited to 'src/dotty/tools/dotc/core/Decorators.scala')
| -rw-r--r-- | src/dotty/tools/dotc/core/Decorators.scala | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/dotty/tools/dotc/core/Decorators.scala b/src/dotty/tools/dotc/core/Decorators.scala index 99af4d0cb..e0d7fae33 100644 --- a/src/dotty/tools/dotc/core/Decorators.scala +++ b/src/dotty/tools/dotc/core/Decorators.scala @@ -100,6 +100,11 @@ object Decorators { else x1 :: xs1 } + def foldRightBN[U](z: => U)(op: (T, => U) => U): U = xs match { + case Nil => z + case x :: xs1 => op(x, xs1.foldRightBN(z)(op)) + } + final def hasSameLengthAs[U](ys: List[U]): Boolean = { @tailrec def loop(xs: List[T], ys: List[U]): Boolean = if (xs.isEmpty) ys.isEmpty |