I hope you're happy

oh_god_why.swift

/// Please don't do this

func iff(condition: Bool, block: () -> ()) -> Bool {
  if(condition) {
    block()
  }
  return condition
}

func iff<T>(optional: Optional<T>, block: (val: T) -> ()) -> Bool {
  if let value = optional {
    block(val: value)
    return true
  }
  return false
}

extension Bool {
  func eelsif(condition: Bool, block: () -> ()) -> Bool {
    if(!self && condition) {
      block()
    }
    return !self && condition
  }
  
  func eelsif<T>(optional: Optional<T>, block: (val: T) -> ()) -> Bool {
    guard !self else { return true }
    if let value = optional {
      block(val: value)
      return true
    }
    return false
  }
  
  func eels(block: () -> ()) {
    if(!self) {
      block()
    }
  }
}

iff(5 > 10) {
  print("YES")
}.eelsif(1 % 2 == 3) {
  print("Yay")
}.eels {
  print("Nope")
}

iff(Int("4")) { num in
  print(num * 4)
}.eelsif(Int("6")) { num in
  print(num + 3)
}.eels {
  print("Hmmm")
}

false.eels {
  print("Oh god")
}