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extern crate proc_macro; use proc_macro::TokenStream; use quote::quote; use syn; #[proc_macro_derive(Name)] pub fn name_derive(input: TokenStream) -> TokenStream { let ast = syn::parse(input).unwrap(); impl_name(&ast) } fn impl_name(ast: &syn::DeriveInput) -> TokenStream { let name = &ast.ident; let gen = quote! { impl Name for #name { fn name(&self) -> &'static str { stringify!(#name) } } }; gen.into() }