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Specialized Cause::foldLeft to Boolean as the usage of this method in Cause::isEmpty introduces boxing #7958

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Specialized Cause::foldLeft to Boolean as the usage of this method in Cause::isEmpty introduces boxing #7958

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2 changes: 1 addition & 1 deletion core/shared/src/main/scala/zio/Cause.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -251,7 +251,7 @@ sealed abstract class Cause[+E] extends Product with Serializable { self =>
/**
* Folds over the cause to statefully compute a value.
*/
final def foldLeft[Z](z: Z)(f: PartialFunction[(Z, Cause[E]), Z]): Z = {
final def foldLeft[@specialized(Boolean) Z](z: Z)(f: PartialFunction[(Z, Cause[E]), Z]): Z = {
@tailrec
def loop(z: Z, cause: Cause[E], stack: List[Cause[E]]): Z =
(f.applyOrElse[(Z, Cause[E]), Z](z -> cause, _ => z), cause) match {
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