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Also compute base classes of wildcardTypes #19465

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Jan 17, 2024
Merged

Also compute base classes of wildcardTypes #19465

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2 changes: 2 additions & 0 deletions compiler/src/dotty/tools/dotc/core/Types.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -657,6 +657,8 @@ object Types extends TypeUtils {
tp.superType.baseClasses
case tp: ClassInfo =>
tp.cls.classDenot.baseClasses
case tp: WildcardType =>
tp.effectiveBounds.hi.baseClasses
case _ => Nil
catch case ex: Throwable =>
handleRecursive("base classes of", this.show, ex)
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5 changes: 5 additions & 0 deletions tests/pos/i19460.scala
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@@ -0,0 +1,5 @@
type T[A] = A | Any

def perform[A](using T[A]): A = perform2

def perform2[A](using T[A]): A = ???
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