This lab comes from SE3355 *Compilers* lab5, which requires me to implement a complete runnable tiger compiler.

This lab comes from SE3355 *Compilers* lab4, which requires me to implement a type-checking module when scanning the AST.

​ This lab comes from SE3355 *Compilers* lab3, which requires me to use Bisonc++ to implement a parser for the Tiger language.

总而言之前前后后好几天时间都在搞这个lab，不过主要花的时间可能是大半天时间。为了留下点东西，姑且总结一下这个lab。