typeslot 0.1.0

Statically assigned slot indices for types, grouped by a marker type.
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
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58

use typeslot::TypeSlot;

struct ElementGroup;
struct ResourceGroup;

#[derive(TypeSlot)]
#[slot(ElementGroup)]
struct Horizontal;

#[derive(TypeSlot)]
#[slot(ElementGroup)]
struct Vertical;

#[derive(TypeSlot)]
#[slot(ResourceGroup)]
struct Health;

#[derive(TypeSlot)]
#[slot(ResourceGroup)]
struct Mana;

// A type can belong to multiple groups.
#[derive(TypeSlot)]
#[slot(ElementGroup, ResourceGroup)]
struct Label;

fn main() {
    typeslot::init::<ElementGroup>();
    typeslot::init::<ResourceGroup>();

    println!("Elements:");
    println!(
        "  Horizontal: {:?}",
        <Horizontal as TypeSlot<ElementGroup>>::slot()
    );
    println!(
        "  Vertical:   {:?}",
        <Vertical as TypeSlot<ElementGroup>>::slot()
    );
    println!(
        "  Label:      {:?}",
        <Label as TypeSlot<ElementGroup>>::slot()
    );

    println!("Resources:");
    println!(
        "  Health: {:?}",
        <Health as TypeSlot<ResourceGroup>>::slot()
    );
    println!(
        "  Mana:   {:?}",
        <Mana as TypeSlot<ResourceGroup>>::slot()
    );
    println!(
        "  Label:  {:?}",
        <Label as TypeSlot<ResourceGroup>>::slot()
    );
}