lyra-engine/lyra-ecs/lyra-ecs-derive/src/lib.rs

19 lines
No EOL
647 B
Rust

use quote::quote;
use syn::{parse_macro_input, DeriveInput};
#[proc_macro_derive(Component)]
pub fn derive_component(input: proc_macro::TokenStream) -> proc_macro::TokenStream {
let input = parse_macro_input!(input as DeriveInput);
let (impl_generics, ty_generics, where_clause) = input.generics.split_for_impl();
let type_ident = &input.ident;
let type_name = type_ident.to_string();
proc_macro::TokenStream::from(quote! {
impl #impl_generics lyra_engine::ecs::Component for #type_ident #ty_generics #where_clause {
fn name() -> &'static str {
#type_name
}
}
})
}