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Scala example source code file (bug608.scala)

This example Scala source code file (bug608.scala) 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

bifunctor, bifunctor, bifunctor,ha,hb,hc, bifunctor,ha,hb,hc, crashduetotypeerror, crashduetotypeerror

The Scala bug608.scala source code

trait CrashDueToTypeError {
  def id[a](x :a) :a = x

  trait Bifunctor {
    type a; //   content 
    type s <: Bifunctor

    // uncomment        this-vvvvvvvvvvvvvvvvvvvvvvvvvvvv, and it compiles
    def bimap[c](f :a=>c) :s{/*type s=Bifunctor.this.s;*/type a=c; }
  }

  def hylo[hs <: Bifunctor,ha,hb,hc]
      (f :hb=>hs{type s=hs; type a=ha},
       g :hs{type s=hs; type a=ha}=>hc)(x :hb)
       :hc
       = g(f(x).bimap(id))
}

Other Scala examples (source code examples)

Here is a short list of links related to this Scala bug608.scala source code file:

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