How can I refactor out the required else clause?

Question

I have a C# method that looks a bit like this:

bool Eval() {
  // do some work
  if (conditionA) {
     // do some work
     if (conditionB) {
       // do s         


        

Answer 1

module Condition =
  type ConditionBuilder() =
    member x.Bind(v, f) = if v then f() else false
    member x.Return(v) = v
  let condition = ConditionBuilder()

open Condition

let eval() =
  condition {
    // do some work
    do! conditionA
    // do some work
    do! conditionB
    // do some work
    do! conditionC
    return true
  }