Allowing pattern bindings in `for` loop `where` clauses

[DevAndArtist (Adrian Meister)]

I had a slightly different pitch some time ago where I wanted a single where clause to combine multiple cases. Now the example from @ole makes me thinking if it would also make some sense in a for loop, although they already can have where causes at the end.

Here is the idea I mentioned before:

Ability to match a condition to multiple associated values from merged switch cases

I just had a small issue with a switch statement where I for some reason assumed that the where clause was already applied to every associated value of a merged switch case. enum Permission { case notSupported(UInt8) case readOnly(UInt8) case readWrite } let permission = Permission.notSupported(0) switch permission { case .notSupported(let code), .readOnly(let code) where code > 0: /* create the right error value */ default: /* create the default error value */ } The above exa…

Could be nonsense though.