extend 1.2.0

Create extensions for types you don't own with extension traits but without the boilerplate.
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
30
31
32
33
34
35
36

use extend::ext_sized;

#[ext_sized(name = One)]
impl i32 {
    fn requires_sized(self) -> Option<Self> {
        Some(self)
    }
}

#[ext_sized(name = Two, supertraits = Default)]
impl i32 {
    fn with_another_supertrait(self) -> Option<Self> {
        Some(self)
    }
}

#[ext_sized(name = Three, supertraits = Default + Clone + Copy)]
impl i32 {
    fn multiple_supertraits(self) -> Option<Self> {
        Some(self)
    }
}

#[ext_sized(name = Four, supertraits = Sized)]
impl i32 {
    fn already_sized(self) -> Option<Self> {
        Some(self)
    }
}

fn main() {
    1.requires_sized();
    1.with_another_supertrait();
    1.multiple_supertraits();
    1.already_sized();
}