entity_id_derive 0.0.4

Production-grade entity IDs for your web application
Documentation 
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use entity_id_core::expand_derive_entity_id;
use proc_macro::TokenStream;
use quote::quote;
use syn::{self, parse_macro_input, DeriveInput};

#[proc_macro_derive(EntityId, attributes(entity_id))]
pub fn entity_id(input: TokenStream) -> TokenStream {
    let mut input = parse_macro_input!(input as DeriveInput);

    expand_derive_entity_id(&mut input)
        .unwrap_or_else(to_compile_errors)
        .into()
}

fn to_compile_errors(errors: Vec<syn::Error>) -> proc_macro2::TokenStream {
    let compile_errors = errors.iter().map(syn::Error::to_compile_error);
    quote!(#(#compile_errors)*)
}