int_enum_impl/
lib.rs

1#![allow(clippy::module_name_repetitions, clippy::single_match_else)]
2
3extern crate proc_macro;
4
5mod ast;
6mod expand;
7mod serde;
8mod util;
9
10use proc_macro::TokenStream;
11use syn::{parse_macro_input, DeriveInput};
12
13#[proc_macro_derive(IntEnum)]
14pub fn int_enum_derive(input: proc_macro::TokenStream) -> TokenStream {
15    let input = parse_macro_input!(input as DeriveInput);
16    expand::derive(&input).unwrap_or_else(|err| err.to_compile_error()).into()
17}