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Useless type parameter for IterableLike.sliding #4778

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scabug opened this issue Jul 7, 2011 · 2 comments
Closed

Useless type parameter for IterableLike.sliding #4778

scabug opened this issue Jul 7, 2011 · 2 comments
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scabug commented Jul 7, 2011

Why is IterableLike.sliding defined with a type parameter B? It is never used:

def sliding[B >: A](size: Int, step: Int): Iterator[Repr] =
for (xs <- iterator.sliding(size, step)) yield {
val b = newBuilder
b ++= xs
b.result
}
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scabug commented Jul 7, 2011

Imported From: https://issues.scala-lang.org/browse/SI-4778?orig=1
Reporter: @hseeberger
Affected Versions: 2.9.0

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scabug commented Sep 4, 2011

@paulp said:
Yeah, if you guys are wondering where the type parameter came from, know that sliding originated in Iterator and you can't remove the type parameter from that one because of how it's used over there.

@scabug scabug closed this as completed Sep 4, 2011
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