Macro global_static::ctor_static

macro_rules! ctor_static {
    () => { ... };
    ($($body:tt)*) => { ... };
}

Available on crate feature ctor only.

Generate a static with a ctor procedure.

fn spit_a_number() -> i32 { 42 }

ctor_static! {
    pub MY_NUM: i32 = { 5 };
    MY_OTHER_NUM: i32 = spit_a_number;
    pub default DEFAULT_NUM: i32;
};

This code will expand to the following:

pub static MY_NUM: Global<i32> = Global::new(|| { 5 });
static MY_OTHER_NUM: Global<i32> = Global::new(spit_a_number);
pub static DEFAULT_NUM: Global<i32> = Global::default();

#[global_static::ctor::ctor]
fn _global_init() {
    MY_NUM.init();
    MY_OTHER_NUM.init();
    DEFAULT_NUM.init();
}