block.rb

def callblock (&block)
  block.call
  puts "block.call returned normally"
end

def yieldblock (&block)
  yield
  puts "yield returned normally"
end

def test_call_block
  callblock do
    puts "test_call_block"
    return
  end
end

def test_yield_block
  yieldblock do
    puts "test_yield_block"
    return
  end
end

def test_call_lambda
  callblock &(lambda do
                puts "test_call_lambda"
                return
              end)
end


def test_yield_lambda
  yieldblock &(lambda do
                 puts "test_yield_lambda"
                 return
               end)
end

test_call_block
test_yield_block
test_call_lambda
test_yield_lambda


# Output:
#
# test_call_block
# test_yield_block
# test_call_lambda
# block.call returned normally
# test_yield_lambda