I'd argue the macros are quite bad:

• Declarative macros are hard to read, same level as regex
• Procedural macros require to write a new crate with a ton of boilerplate, sometimes for stuff conceptually really simple (like hash is: apply the same function to every field, then compose the results)

I agree, though, that it's better there're here than nothing. It's just that there is to be a better solution.