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Scala example source code file (tailrec-3.check)

This example Scala source code file (tailrec-3.check) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - Scala tags/keywords

list, list

The Scala tailrec-3.check source code

tailrec-3.scala:4: error: could not optimize @tailrec annotated method quux: it contains a recursive call not in tail position
  @tailrec private def quux(xs: List[String]): List[String] = quux(quux(xs))
                                                                       ^
tailrec-3.scala:6: error: could not optimize @tailrec annotated method quux2: it contains a recursive call not in tail position
    case x1 :: x2 :: rest => quux2(x1 :: quux2(rest))
                                              ^
tailrec-3.scala:10: error: could not optimize @tailrec annotated method quux3: it contains a recursive call not in tail position
    case x :: xs if quux3(List("abc"))  => quux3(xs)
                         ^
three errors found

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