sharing

sharing captures the space-time nature of field computation through observation of neighbours' values, starting from an initial value, it reduces to a single local value given a transform function and updating and sharing to neighbours of a local variable.

val result = sharing(0) {
  val maxValue = it.maxBy { v -> v.value }.value
  maxValue.yielding { "Something different" }
}
result // result: kotlin.String

In the example above, the function share wil return the string initialised as in sendButReturn.

Invalid use:

Do not write code after calling the sending or returning values, they must be written at last inside the lambda.

share(0) {
 val maxValue = it.maxBy { v -> v.value }.value
 maxValue.yielding { "Don't do this" }
 maxValue
}