extern crate proc_macro;
extern crate syn;
#[macro_use]
extern crate quote;
use proc_macro::TokenStream;
#[proc_macro_derive(Derive)]
pub fn derive(input: TokenStream) -> TokenStream {
let s = input.to_string();
let ast = syn::parse_derive_input(&s).unwrap();
impl_derive(&ast).parse().unwrap()
}
fn impl_derive(ast: &syn::DeriveInput) -> quote::Tokens {
let name = &ast.ident;
quote! {
impl ::derive::Derive for #name {}
}
}