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Avoid nested IgnoredProtos #7756

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Merged
merged 1 commit into from
Dec 16, 2019
+7 −3
Merged

Avoid nested IgnoredProtos #7756

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10 changes: 7 additions & 3 deletions compiler/src/dotty/tools/dotc/typer/ProtoTypes.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -113,10 +113,14 @@ object ProtoTypes {
}

/** A class marking ignored prototypes that can be revealed by `deepenProto` */
case class IgnoredProto(ignored: Type) extends UncachedGroundType with MatchAlways {
override def revealIgnored = ignored.revealIgnored
case class IgnoredProto(ignored: Type) extends UncachedGroundType with MatchAlways with
override def revealIgnored = ignored
override def deepenProto(implicit ctx: Context): Type = ignored
}

object IgnoredProto with
def apply(ignored: Type): IgnoredProto = ignored match
case ignored: IgnoredProto => ignored
case _ => new IgnoredProto(ignored)

/** A prototype for expressions [] that are part of a selection operation:
*
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