bevy/crates/bevy_app/src/plugin.rs
2020-07-16 18:47:51 -07:00

22 lines
579 B
Rust

use libloading::{Library, Symbol};
use std::any::Any;
use crate::AppBuilder;
pub trait AppPlugin: Any + Send + Sync {
fn build(&self, app: &mut AppBuilder);
fn name(&self) -> &str {
std::any::type_name::<Self>()
}
}
pub type CreateAppPlugin = unsafe fn() -> *mut dyn AppPlugin;
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)
}
}