init.swift

class Bar {}

class Baz {
  init(str: String!) {
    println(str)
  }
}

class Foo: Bar {
  let bar: String!

  init() {
    println(self.bar)
    Baz(str: self.bar)
    super.init()
    println(self.bar)
    //println(self.bar.uppercaseString) // :boom:
    println("Look, Ma! No boom!")
    bar = "thing"
  }
}

println(Foo().bar)