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1 // Copyright 2016 The Rust Project Developers. See the COPYRIGHT
2 // file at the top-level directory of this distribution and at
3 // http://rust-lang.org/COPYRIGHT.
5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
8 // option. This file may not be copied, modified, or distributed
9 // except according to those terms.
13 #![crate_type = "proc-macro"]
14 #![feature(proc_macro)]
15 #![feature(proc_macro_lib)]
17 extern crate proc_macro
;
19 use proc_macro
::TokenStream
;
21 #[proc_macro_derive(AddImpl)]
23 pub fn derive(input
: TokenStream
) -> TokenStream
{
24 (input
.to_string() + "
31 mod bar { pub fn foo() {} }