Is there a better way to have a first method (`prelude` here) accept an optional block, pass it to another method (`final` here) and have it yielded in the end, without having to yield also in the first method ?

pass_blocks_around.rb

def prelude
  if block_given?
    final { |name|
      yield(name)
    }
  else
    final
  end
end

def final
  if block_given?
    yield("world")
  else
    puts "- no block given to #final"
  end
end

puts "# prelude with no block"
prelude

puts ""

puts "# prelude with a block"
prelude { |name|
  puts "Hello #{name} from prelude block"
}

Thanks to @jjaffeux for the solution :

def prelude(&block)
  final(&block)
end

I'va previously tried that, but forgot to put the & also when calling final(&block) so the block was passed without being converted to a Proc (or something like this).