diff options
Diffstat (limited to 'src/coord/ranged1d/combinators/nested.rs')
| -rw-r--r-- | src/coord/ranged1d/combinators/nested.rs | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/src/coord/ranged1d/combinators/nested.rs b/src/coord/ranged1d/combinators/nested.rs index d23f34e..e4a493e 100644 --- a/src/coord/ranged1d/combinators/nested.rs +++ b/src/coord/ranged1d/combinators/nested.rs @@ -113,7 +113,7 @@ impl<P: DiscreteRanged, S: Ranged> Ranged for NestedRange<P, S> { self.primary .values() .enumerate() - .map(|(idx, val)| { + .flat_map(|(idx, val)| { std::iter::once(NestedValue::Category(val)).chain( self.secondary[idx] .key_points(secondary_size) @@ -123,7 +123,6 @@ impl<P: DiscreteRanged, S: Ranged> Ranged for NestedRange<P, S> { }), ) }) - .flatten() .collect() } } @@ -160,10 +159,12 @@ impl<P: DiscreteRanged, S: DiscreteRanged> DiscreteRanged for NestedRange<P, S> } } +/// Used to build a nested coordinate system. pub trait BuildNestedCoord: AsRangedCoord where Self::CoordDescType: DiscreteRanged, { + /// Builds a nested coordinate system. fn nested_coord<S: AsRangedCoord>( self, builder: impl Fn(<Self::CoordDescType as Ranged>::ValueType) -> S, |