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fix: restrict the IteratorLoop instance on DropWhile, which was accidentally more general (#8703)

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This PR corrects the `IteratorLoop` instance in `DropWhile`, which
previously triggered for arbitrary iterator types.
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Paul Reichert 2025-06-11 09:35:46 +02:00 • committed by GitHub
parent 44e36dec6f
commit cf8315ed96
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src/Std/Data/Iterators/Combinators/Monadic/DropWhile.lean
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@ -278,7 +278,7 @@ instance DropWhile.instIteratorCollectPartial [Monad m] [Monad n] [Iterator α m
.defaultImplementation
instance DropWhile.instIteratorLoop [Monad m] [Monad n] [Iterator α m β] :
IteratorLoop α m n :=
IteratorLoop (DropWhile α m β P) m n :=
.defaultImplementation
instance DropWhile.instIteratorForPartial [Monad m] [Monad n] [Iterator α m β]