// Copyright 2016 The Rust Project Developers. See the COPYRIGHT // file at the top-level directory of this distribution and at // http://rust-lang.org/COPYRIGHT. // // Licensed under the Apache License, Version 2.0 or the MIT license // , at your // option. This file may not be copied, modified, or distributed // except according to those terms. // no-prefer-dynamic // force-host #![feature(rustc_macro)] #![feature(rustc_macro_lib)] #![crate_type = "rustc-macro"] extern crate rustc_macro; use rustc_macro::TokenStream; #[rustc_macro_derive(A)] pub fn derive_a(_input: TokenStream) -> TokenStream { "struct A { inner }".parse().unwrap() }