Attribute Macro mz_ore::static_list

#[static_list]

A macro that collects all of the static objects of a specific type in the annotated module into a single list.

use mz_ore_proc::static_list;

#[static_list(ty = "usize", name = "ALL_NUMS", expected_count = 3)]
pub mod my_items {
    pub static FOO: usize = 1;

    // Won't get included in the list, because it's not a usize.
    pub static NON_USIZE: u8 = 10;

    // Nested modules also work.
    pub mod inner {
        pub static BAR: usize = 5;
        pub static BAZ: usize = 11;
    }
}

assert_eq!(ALL_NUMS, &[&1usize, &5, &11]);

Wrong expected count.

You’re required to specify an expected count of items as a smoke test to make sure all of the items you think should get included, are included.

#[static_list(ty = "usize", name = "ALL_NUMS", expected_count = 2)]
pub mod items {
    pub static A: usize = 10;
    pub static B: isize = 20;
}