test_peepholer.py 文件源码

def test_elim_jump_to_return(self):
        # JUMP_FORWARD to RETURN -->  RETURN
        def f(cond, true_value, false_value):
            return true_value if cond else false_value
        self.assertNotInBytecode(f, 'JUMP_FORWARD')
        self.assertNotInBytecode(f, 'JUMP_ABSOLUTE')
        returns = [instr for instr in dis.get_instructions(f)
                          if instr.opname == 'RETURN_VALUE']
        self.assertEqual(len(returns), 2)