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saswata-dutta/MyIo.scala

Created June 19, 2023 05:23
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MyIo.scala
case class MyIo[A](unsafeRun : () => A) {
def map[B](f: A => B): MyIo[B] = MyIo(() => f(unsafeRun()))
def flatMap[B](f: A => MyIo[B]): MyIo[B] = MyIo(() => f(unsafeRun()).unsafeRun())
}
val printer = MyIo(() => println("how"))
val doit = printer.flatMap( _ => printer)
val other = printer.map( _ => println("w"))
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