Good summary of what can be done with it. First I wondered why they do not work on an AST but a token list. But since Rust is not Lisp and allows new macros to

Good summary of what can be done with it. First I wondered why they do not work on an AST but a token list. But since Rust is not Lisp and allows new macros to define new syntax it makes sense to decouple this and rely on parsing libraries for AST construction. Overall very powerful and indeed I'm super curious what use cases people will come up with.