Example of a usecase of Ruby 2.7 triple dot notation for writing method wrappers

triple_dots.rb

def original_method(a, b)
  puts "Called with #{a} and #{b}"
  if block_given?
    puts "Calling the block"
    yield
  end
end

def wrapper1(*args) # WRONG: doesn't pass the block
  puts "Hi I'm wrapper1"
  original_method(*args)
end

def wrapper2(*args, &block) # Works as expected, easy to forget
  puts "Hi I'm wrapper2"
  original_method(*args, &block)
end

def wrapper3(...) # Works as expected (Ruby >2.7)
  puts "Hi I'm wrapper3"
  original_method(...)
end