alt Hacker NewsAFAICT, actually manipulating the AST, which then in turn allows you to implement your own language features, inserting additional debugging info, memoizing a function by just wrapping it in a macro, or optimizations based on domain knowledge.
AFAICT, actually manipulating the AST, which then in turn allows you to implement your own language features, inserting additional debugging info, memoizing a function by just wrapping it in a macro, or optimizations based on domain knowledge.