Pitch: Introduce #module to get the current module name

[johannesweiss]

@johannesweiss

Yes, there are various hacks like the one you propose but I don't think we should rely on the String description of a type (or the file path). Said that, the hack you suggest is better than SwiftLog's hack tbh, so I think I'll make a PR to switch (until we get #module )!

Actually, I misspoke. You can't unfortunately get the desired behaviour that you can evaluate that in the caller's module like you can with the #magicIDs. I think your suggestion suffers from the same problem as the ThisModule suggestion: you can't forward the caller's module as you could with public func printCallerModule(_ module: String = #module).