Add roles declarations to allow safe coercions#20
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hdgarrood merged 1 commit intopurescript:masterfrom Oct 3, 2020
Merged
Add roles declarations to allow safe coercions#20hdgarrood merged 1 commit intopurescript:masterfrom
hdgarrood merged 1 commit intopurescript:masterfrom
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hdgarrood
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Oct 3, 2020
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This allows terms of type
Effect ato be coerced to typeEffect bwhenCoercible a bholds, hence allowing the zero costcoerceinstead ofmap wrapandmap unwrapto introduce and eliminate newtypes under effects for instance. Ditto for all the uncurried effectful functions types.