dumbledore/archetypes/
mod.rs

1pub mod arche;
2
3use crate::component::Component;
4use std::alloc::Layout;
5use std::any::TypeId;
6use std::cmp::Ordering;
7
8/// The Information about a Component.
9#[derive(Debug, Clone)]
10pub struct ComponentInfo {
11    pub(crate) layout: Layout,
12    pub(crate) id: TypeId,
13    pub(crate) drop: unsafe fn(*mut u8),
14}
15
16impl ComponentInfo {
17    pub fn new<T: Component>() -> Self {
18        unsafe fn drop_ptr<T>(ptr: *mut u8) {
19            ptr.drop_in_place()
20        }
21
22        ComponentInfo {
23            layout: Layout::new::<T>(),
24            id: TypeId::of::<T>(),
25            drop: drop_ptr::<T>,
26        }
27    }
28}
29
30impl PartialEq<Self> for ComponentInfo {
31    fn eq(&self, other: &Self) -> bool {
32        self.id == other.id
33    }
34}
35
36impl Eq for ComponentInfo {}
37
38impl Ord for ComponentInfo {
39    fn cmp(&self, other: &Self) -> Ordering {
40        self.layout
41            .align()
42            .cmp(&other.layout.align())
43            .reverse()
44            .then_with(|| self.id.cmp(&other.id))
45    }
46}
47
48impl PartialOrd for ComponentInfo {
49    fn partial_cmp(&self, other: &Self) -> Option<Ordering> {
50        Some(self.cmp(other))
51    }
52}
dumbledore/archetypes/mod.rs

dumbledore/archetypes/
mod.rs
