derive_system/lib.rs
1use proc_macro::TokenStream;
2use syn::{parse_macro_input, DeriveInput};
3
4mod structs;
5mod system;
6
7#[proc_macro_derive(System)]
8pub fn derive_system(input: TokenStream) -> TokenStream {
9 let input = parse_macro_input!(input as DeriveInput);
10
11 let type_name = &input.ident;
12
13 system::expand(&type_name, &input.data)
14 .unwrap_or_else(|e| e.to_compile_error())
15 .into()
16}