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

Please don't be afraid to extract functions. This is key to controlling complex logic.

let rec partA () =
  // do some work
  let aValue = makeA ()
  if conditionA 
  then partB aValue 
  else false
and partB aValue =
  // do some work
  let bValue = makeB aValue
  if conditionB 
  then partC bValue
  else false
and partC bValue =
  // do some work
  conditionC