Swift 2.2 cygwin port available!
(all features are not ported)
Download tar ball from GitHub - tinysun212/swift-windows-bin: Swift Windows Port Binaries
You can compile and run swift source like this.
swiftc Hello.swift
./Hello
OR
swift Hello.swift
*REPL feature is not working yet.
You will need newest version of cygwin-64 and some package set.
Thanks,
Han Sangjin