Generating unique IDs for types at compile time

Question

I want to generate a unique id for every type at compile time. Is this possible in Rust?

So far, I have the following code

//Pseudo code
struct Class         


        

Answer 1

If you want to manage type ids manually, you can use my unique-type-id crate. It allows you to specify what ids a type has in a special file. It will generate them at compile time. Currently it can be used in this way:

use unique_type_id::UniqueTypeId;
#[derive(UniqueTypeId)]
struct Test1;
#[derive(UniqueTypeId)]
struct Test2;

assert_eq!(Test1::id().0, 1u64);
assert_eq!(Test2::id().0, 2u64);

It can both generate types using incremental number and use the id from a file.