新版本的变更 / Ruby 3.2

# requires Ruby 3.2 or newer

# *** before: ***
def foo_old(*args)
  bar(*args)
end

# *** in version 3.2: ***
def foo(*)
  bar(*)   # an anonymous splat parameter can itself be forwarded further
end

def bar(*args)
  args.inspect
end

puts foo(123)