parser.py 文件源码

def parse_match_arms(self):
        arms = []

        while not self.cur_is(token.RBRACE):
            self.next()

            arm = self.parse_match_arm()

            if arm != None:
                arms.append(arm)
            else:
                return None

            if self.peek_is(token.RBRACE):
                self.next()

        return arms