x = begin
  return if true
  "conditional"
end

x = if rand < 0.5
  return
  "else is nil"
end

x = if true
  return if true
  "conditional"
else
  return
end

x = if true
  return if true
else
  return if true
  "conditional"
end

x = case
  when 1
    return if true
    "conditional"
  else
    return
end
