Scala can be weirdly dangerous

name-redefenition.scala

object NameReDef {
  def withWrapper(foo: String => String) = {
    println("Wrapping ...")
    foo("My pretty string")
  }
  
  def bar = {
    withWrapper { str =>
      // Does not compile if we use the str above before the re-definition
      // println("Defined:")
      // println(str)

      // Re-definition compiles if we do not use the str above
      val str = "This is not my pretty string!!!"
      println("Re-Defined:")
      println(str)
      str
    }
  }
}