koto_derive 0.14.1

Macros for working with the Koto programming language
Documentation 
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use crate::{attributes::koto_derive_attributes, PREFIX_STATIC};
use proc_macro::TokenStream;
use quote::{format_ident, quote};
use syn::{parse_macro_input, DeriveInput};

pub fn derive_koto_type(input: TokenStream) -> TokenStream {
    let input = parse_macro_input!(input as DeriveInput);
    let attributes = koto_derive_attributes(&input.attrs);

    let name = input.ident;
    let type_name = attributes
        .type_name
        .unwrap_or_else(|| quote!(#name).to_string());
    let type_string_name = format_ident!("{PREFIX_STATIC}TYPE_STRING_{}", type_name.to_uppercase());

    let result = quote! {
        #[automatically_derived]
        impl KotoType for #name {
            fn type_static() -> &'static str {
                #type_name
            }

            fn type_string(&self) -> KString {
                #type_string_name.with(|s| s.clone())
            }
        }

        #[automatically_derived]
        thread_local! {
            static #type_string_name: KString = #type_name.into();
        }
    };

    result.into()
}