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by masklinn
904 days ago
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> The point is that in most languages something doesn't implement an interface unless it declares that it does But that's not a requirement. Haskell did nominative "interfaces" (typeclasses) and post-creation conformance 20 years before Go happened. |
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Not the same thing, yes you can have orphan instances (with a flag) but you still need an explicit typeclass instance somewhere. Whereas Go interfaces are structural rather than nominal. (And much as I might wish otherwise, Haskell barely qualifies as a mainstream language)