extern crate proc_macro;
use proc_macro::TokenStream;
use quote::quote;
use syn::{parse_macro_input, DeriveInput};

#[proc_macro_derive(LD)]
pub fn derive_ld(input: TokenStream) -> TokenStream {
    let DeriveInput { ident, .. } = parse_macro_input!(input);
    quote! {
        impl crate::astreams::serde_ext::LDObject for #ident {
            fn from_iri(s: &str) -> Self {
                let mut ident = #ident::default();
                ident.id = s.into();
                ident
            }
            fn get_iri(&self) -> String {
                self.id.clone()
            }
        }
    }
    .into()
}