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Go back to explicit @retains instead of uses_init in stdlib #25719

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Go back to explicit @retains instead of uses_init in stdlib #25719

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2 changes: 1 addition & 1 deletion library/src/scala/collection/Map.scala
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Expand Up @@ -217,7 +217,7 @@ transparent trait MapOps[K, +V, +CC[_, _] <: IterableOps[?, AnyConstr, ?], +C]
* See [[MapOps.LazyKeySet]] for a version that lazily captures the map.
*/
@deprecated("GenKeySet is not capture-safe, and so is deprecated and no longer used in .keySet implementations.", since = "3.8.0")
protected trait GenKeySet uses_init MapOps.this {
protected trait GenKeySet @retains[MapOps.this.type]() {
this: Set[K] =>
import caps.unsafe.{unsafeDiscardUses, unsafeAssumePure}
def iterator: Iterator[K] = unsafeDiscardUses(MapOps.this).keysIterator.unsafeAssumePure
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