bevy/crates/bevy_app/src/plugin.rs

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Rust
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use crate::AppBuilder;
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use libloading::{Library, Symbol};
use std::any::Any;
pub trait AppPlugin: Any + Send + Sync {
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fn build(&self, app: &mut AppBuilder);
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fn name(&self) -> &str {
std::any::type_name::<Self>()
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}
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}
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pub type CreateAppPlugin = unsafe fn() -> *mut dyn AppPlugin;
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pub fn load_plugin(path: &str) -> (Library, Box<dyn AppPlugin>) {
let lib = Library::new(path).unwrap();
unsafe {
let func: Symbol<CreateAppPlugin> = lib.get(b"_create_plugin").unwrap();
let plugin = Box::from_raw(func());
(lib, plugin)
}
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}