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Drop EmptyTuple handling from NamedTupleDecomposition.apply #22340

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Jan 13, 2025
Merged

Drop EmptyTuple handling from NamedTupleDecomposition.apply #22340

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4 changes: 1 addition & 3 deletions library/src/scala/NamedTuple.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -139,9 +139,7 @@ object NamedTupleDecomposition:
extension [N <: Tuple, V <: Tuple](x: NamedTuple[N, V])
/** The value (without the name) at index `n` of this tuple */
inline def apply(n: Int): Elem[NamedTuple[N, V], n.type] =
inline x.toTuple match
case tup: NonEmptyTuple => tup(n).asInstanceOf[Elem[NamedTuple[N, V], n.type]]
case tup => tup.productElement(n).asInstanceOf[Elem[NamedTuple[N, V], n.type]]
x.toTuple.apply(n).asInstanceOf[Elem[NamedTuple[N, V], n.type]]

/** The number of elements in this tuple */
inline def size: Size[NamedTuple[N, V]] = x.toTuple.size
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10 changes: 10 additions & 0 deletions tests/pos/i22324.scala
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@@ -0,0 +1,10 @@
import scala.language.experimental.namedTuples

opaque type System = (wires: Any)

extension (system: System)
inline def foo = system.wires
end extension

val simulation: System = ???
val _ = simulation.foo // was error
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