[ANN] match_deref. I made a proc-macro lib for long-awaited deref patterns

I made a proc-macro lib for long-awaited deref patterns! https://crates.io/crates/match_deref . Example:

use std::rc::Rc;

enum Value {
    Nil,
    Cons(Rc<Value>, Rc<Value>),
    Symbol(String),
}

use Value::*;

let v: &Value = todo!();
match_deref::match_deref!{
    match v {
        Nil => todo!(),
        Cons(Deref @ Symbol(Deref @ "quote"), Deref @ Cons(x, Deref @ Nil)) => todo!(),
        _ => todo!(),
    }
}

I think my library is invaluable in writing interpreters, compilers, provers etc.

There exists ongoing work to add deref patterns to rustc. But with my lib you can use them right now, in stable Rust.

This is my very first lib in crates.io