I'm not sure this makes any sense for enums with associated values.

Even in the case of a "simple" enum, this is still subject to the availability concerns I have in the case the compiler automagically derives an {code:java}allCases

Comment by Raphael (JIRA)

@belkadan As long as the parameter space is finite (e.g. other enums without associated values), the semantics are clear (even though the list may become long). For infinite parameter spaces, lazy enumeration would still be possible in principle (unless we have floats), but arguably not very useful. So yes, if the compiler can not determine the full list (quickly?), this makes no sense.

Maybe the way to go is a protocol. We'd still have to implement it for ever enum, but at least there's be standard way to provide and access all values, if possible.

This was SE-0194.