So if it wasn't such a severe error, I could just bail out with an error code?

如果不是一个严重的错误，我就可以使用一个错误编码作为返回值吗？

youdao

"Failed to parse the output of 'adb version'", "the connection to adb is down, and a severe error has occurred".

“未能解析输出的“亚洲版“，”亚行的连接，和一个严重的错误”。”

youdao

If a severe error is detected (for example, insufficient disk space), the entire transaction automatically rolls back.

如果检测到严重错误(例如，磁盘空间不足)，整个事务将自动回滚。

youdao

Last Monday evening I made a severe error of judgment, failing to protect my personal safety, and became the victim of what was for me a frightening and shocking crime.

BBC: News | UK Politics | Ron Davies's speech in full