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Relax parOneOf and parOneOfMap constraints #23

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natefaubion opened this issue Oct 30, 2017 · 4 comments
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Relax parOneOf and parOneOfMap constraints #23

natefaubion opened this issue Oct 30, 2017 · 4 comments

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@natefaubion
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They require Alternative, which Aff does not satisfy. And since Aff is one of the only interesting things that implements Parallel, I feel like we should relax them to Applicative + Plus.
@paf31
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paf31 commented Oct 30, 2017

Didn't we discuss this before? I thought we decided there were useful things you could prove only with Alternative? Anyway, what does it gain us to change to Applicative and Plus? Isn't Aff an Alternative?

@natefaubion
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No, it does not satisfy the Alternative laws

@natefaubion
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natefaubion commented Oct 30, 2017 •
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Or at least, it doesn't have an instance. Maybe I was too aggressive when removing bad instances in Aff 4? I thought I remember it failing to be an Alternative for some reason.

@natefaubion
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ParAff is the one with the Alternative instance, duh.

@natefaubion natefaubion mentioned this issue Oct 16, 2020
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@natefaubion @paf31