Can't work in Xcode 10.3

[RayJiang16]

public protocol MemsCompatible {}
public extension MemsCompatible {
    static var mems: MemsWrapper<Self>.Type {
        get { MemsWrapper<Self>.self }
        set {}
    }
    var mems: MemsWrapper<Self> {
        get { MemsWrapper(self) }
        set {}
    }
}

get 里面省略 return 是 Swift 5.1 的特性，在 Swift 5 里面会报错

[CoderMJLee]

更新了