interpreter.py 文件源码

def parse_byte_and_args(self):
        code = self.f_code
        opcode = code.co_code[self.f_lasti]
        self.f_lasti = self.f_lasti + 1
        if opcode >= dis.HAVE_ARGUMENT:
            int_arg = (   code.co_code[self.f_lasti]
                       + (code.co_code[self.f_lasti+1] << 8))
            self.f_lasti = self.f_lasti + 2
            if opcode in dis.hasconst:
                arg = code.co_consts[int_arg]
            elif opcode in dis.hasfree:
                if int_arg < len(code.co_cellvars):
                    arg = code.co_cellvars[int_arg]
                else:
                    arg = code.co_freevars[int_arg - len(code.co_cellvars)]
            elif opcode in dis.hasname:
                arg = code.co_names[int_arg]
            elif opcode in dis.haslocal:
                arg = code.co_varnames[int_arg]
            elif opcode in dis.hasjrel:
                arg = self.f_lasti + int_arg
            else:
                arg = int_arg
            return dis.opname[opcode], (arg,)
        return dis.opname[opcode], ()