blob: 119e2438cc9ba48585a5a4078a45ad2eeec56497 [file] [log] [blame]
extern crate proc_macro;
mod ast;
mod attr;
mod expand;
mod fmt;
mod prop;
mod valid;
use proc_macro::TokenStream;
use syn::{parse_macro_input, DeriveInput};
#[proc_macro_derive(Error, attributes(backtrace, error, from, source))]
pub fn derive_error(input: TokenStream) -> TokenStream {
let input = parse_macro_input!(input as DeriveInput);
expand::derive(&input)
.unwrap_or_else(|err| err.to_compile_error())
.into()
}