Add roles declarations to allow safe coercions #194
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thomashoneyman
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Sep 12, 2020
kl0tl
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@kl0tl Could you rebase this branch on top of |
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Thank you for rebasing for me Thomas! |
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This allows terms of type
Aff aandParAff ato be coerced to typeAff bandParAff bwhenCoercible a bholds, hence allowing the zero costcoerceinstead ofmap wrapandmap unwrapto introduce and eliminate newtypes under asynchronous computations for instance.