ghost 0.1.22

Define your own PhantomData
Documentation 
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#![allow(clippy::no_effect_underscore_binding)]

use ghost::phantom;

pub trait Trait<T> {}

#[phantom]
pub struct Independent<W: ?Sized, const I: u32>;

#[phantom]
pub struct Dependent<const I: usize, T: Trait<[u8; I]>>;

#[test]
fn test_const() {
    let _phantom_v = Independent::<i8, 0>;
    let _phantom_t: Independent<i8, 0> = Independent;
}

// https://github.com/dtolnay/ghost/issues/41
#[repr(transparent)]
pub struct Transparent<T>(T, Independent<T, 0>);