DO NOT MERGE: repeat evaluation with Streaming.memoize #662
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This is a potential bug report and is not meant to be merged in its current form. This test fails. It attempts to check that if a `Streaming` instance is created via `.memoize`, then its elements won't be evaluated multiple times (such as when `.toList` is called). One could argue that this is a bogus test case, since side effects should be tracked in a type other than `Unit`. However, I believe that this means that we might be evaluating arguments overly-eagerly, which is a problem in itself. I made a naive attempt at fixing this by making `Streaming.map` a little lazier in the `Cons` case, but that didn't seem to do the trick. @non do you have any thoughts?
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Fixed by #665. |
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This is a potential bug report and is not meant to be merged in its
current form.
This test fails. It attempts to check that if a
Streaminginstance iscreated via
.memoize, then its elements won't be evaluated multipletimes (such as when
.toListis called).One could argue that this is a bogus test case, since side effects
should be tracked in a type other than
Unit. However, I believe thatthis means that we might be evaluating arguments overly-eagerly, which
is a problem in itself.
I made a naive attempt at fixing this by making
Streaming.mapa littlelazier in the
Conscase, but that didn't seem to do the trick.@non do you have any thoughts?