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test: add in regression test for #7653 #17474

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Merged
merged 1 commit into from
May 12, 2023
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test: add in regression test for #7653 #17474

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22 changes: 22 additions & 0 deletions tests/pos/i7653.scala
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Original file line number Diff line number Diff line change
@@ -0,0 +1,22 @@
// https://github.com/lampepfl/dotty/issues/7653

object options2 {
type Option[T] = {
def isEmpty: Boolean
}
type None[T] = Option[T]
val none: () => Option[Nothing] = () =>
new {
def isEmpty = true
}
val mkNone0: [T] => () => Option[Nothing] = [T] =>
() =>
new {
def isEmpty = true
}
val mkNone: [T] => () => Option[T] = [T] =>
() =>
new {
def isEmpty = true
}
}