typeslot 0.2.1

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

use typeslot::prelude::*;

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() {
    init_slot::<ElementGroup>();
    init_slot::<ResourceGroup>();

    let elements = SlotGroup::<ElementGroup>::new();
    let resources = SlotGroup::<ResourceGroup>::new();

    println!("Elements:");
    println!("  Horizontal: {}", elements.get::<Horizontal>());
    println!("  Vertical:   {}", elements.get::<Vertical>());
    println!("  Label:      {}", elements.get::<Label>());

    println!("Resources:");
    println!("  Health: {}", resources.get::<Health>());
    println!("  Mana:   {}", resources.get::<Mana>());
    println!("  Label:  {}", resources.get::<Label>());
}