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Close test: GADT constraint drives picking the right implicit #16807

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Merged
merged 1 commit into from
Feb 7, 2023
Merged

Close test: GADT constraint drives picking the right implicit #16807

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1 change: 1 addition & 0 deletions tests/run/i16785.check
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Original file line number Diff line number Diff line change
@@ -0,0 +1 @@
specific: 1
14 changes: 14 additions & 0 deletions tests/run/i16785.scala
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object Test {
sealed trait Box[T] { def value: T }
final case class IntBox(value: Int) extends Box[Int]

implicit def s1[T](implicit box: Box[T]): String = "generic: " + box.value
implicit def s2(implicit box: Box[Int]): String = "specific: " + box.value

def test[T](implicit box: Box[T]): String = box match {
case IntBox(_) => implicitly[String]
}

def main(args: Array[String]): Unit =
println(test(IntBox(1)))
}