Only nullfiy simple kinded types #23911
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It looks like this PR was initiated on top of the wrong branch. Please rebase on top of |
noti0na1
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Sep 12, 2025
| // We don't modify unit types. | ||
| || tp.isRef(defn.UnitClass) | ||
| // We don't modify `Any` because it's already nullable. | ||
| || tp.isRef(defn.AnyClass) => false | ||
| case tp: TypeParamRef if !tp.hasSimpleKind => false |
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!tp.hasSimpleKind can be moved to the first if together with outermostLevelAlreadyNullable.
| @@ -107,10 +107,13 @@ object ImplicitNullInterop { | |||
| case tp: TypeRef if !tp.hasSimpleKind | |||
| // We don't modify value types because they're non-nullable even in Java. | |||
| || tp.symbol.isValueClass | |||
| || tp.isRef(defn.NullClass) | |||
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We may also need to consider the following special classes: SingletonClass, AnyKindClass, FromJavaObjectSymbol, etc...
| val n1: List[Map[String, Int]] = ??? | ||
| val n2 = new N[List]() | ||
| val n3 = n2.accept[Any](n1) | ||
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Let's also test some type lambdas like [X] =>> R
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More tests may be needed
Fixes #23908