spellcast 0.1.2

Casting of dynamic objects
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
26
27
28
29

moddef::moddef!(
    flat(pub) mod {
        dyncast_obj,
        dyncast_ref,
        dyncast_,
        try_dyncast_ref,
        try_dyncast
    }
);

use super::*;

#[macro_export]
macro_rules! impl_dyncast {
    ($sub:path : $super:path) => {
        impl<Medium> DyncastObj<dyn $sub, dyn $super> for Medium
        where
            Medium: $sub + $super + spellcast::Is<dyn $sub> + spellcast::Is<dyn $super> + ?Sized,
        {
            type Obj = dyn $sub;
        }
        impl<Medium> DyncastObj<dyn $super, dyn $sub> for Medium
        where
            Medium: $sub + $super + spellcast::Is<dyn $sub> + spellcast::Is<dyn $super> + ?Sized,
        {
            type Obj = dyn $sub;
        }
    };
}