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Fix #15183: Add regression test #15333

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Merged
merged 1 commit into from
May 30, 2022
Merged

Fix #15183: Add regression test #15333

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14 changes: 14 additions & 0 deletions tests/pos/i15183/decoder_1.scala
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import scala.deriving._

sealed trait Decoder[T]
object Decoder {
given Decoder[Double] = ???

inline given summonEmptyTuple[H]: Tuple.Map[EmptyTuple.type, Decoder] =
EmptyTuple

inline given summonTuple[H, T <: Tuple](using hd: Decoder[H], td: Tuple.Map[T, Decoder]): Tuple.Map[H *: T, Decoder] =
hd *: td

inline given derived[T](using m: Mirror.Of[T], d: Tuple.Map[m.MirroredElemTypes, Decoder]): Decoder[T] = ???
}
12 changes: 12 additions & 0 deletions tests/pos/i15183/test_2.scala
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// Fails in each cases below
enum Env derives Decoder:
case Local,Sit,Prod

enum Env2 derives Decoder:
case Local()
case Sit()
case Prod()

enum Shape derives Decoder:
case Rectangle(width: Double, height: Double)
case Circle(radius: Double)