Illustrative use case for transform on scala.util.Try

so-try.scala

def result(i: Int, d: Double, b: Boolean) = {
  if (b) d else i
}

def fA(s: String) = 7
def fB(s: String, i: Int) = 1.0
def fC(s: String, i: Int, d: Double) = true

import scala.util.{Try, Success, Failure}

def test(s: String) = {
  Try(fA(s)).transform(
    ea => Success(result(0, 0.0, false)), a => Try(fB(s, a)).transform(
      eb => Success(result(a, 0.0, false)), b => Try(fC(s, a, b)).transform(
        ec => Success(result(a, b, false)), c => Try(result(a, b, c))
      )
    )
  ).get
}