o3 0.31.0

shared-nothing primitives
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25

use std::marker;

use crate::base::cell::{
    region::{self, Brand, Identity},
    values,
};

/// Copyable identity proof carried by capabilities derived from a region token.
#[derive(Clone, Copy, Debug)]
#[repr(transparent)]
pub struct Proof<B: Brand> {
    pub(super) proof: marker::PhantomData<B>,
}

impl<B: Brand> Proof<B> {
    /// Binds newly owned state to this exact region identity.
    pub const fn bind<T>(self, value: T) -> region::Value<B, T> {
        values::Value::new(value)
    }
}

const _: () = {
    assert!(size_of::<Proof<Identity<'static>>>() == 0);
    assert!(size_of::<Proof<Identity<'static, 1>>>() == 0);
};