1 // Copyright 2018 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"]
15 extern crate proc_macro;
20 pub fn single_quote_alone(_: TokenStream) -> TokenStream {
21 // `&'a u8`, but the `'` token is not joint
22 let trees: Vec<TokenTree> = vec![
23 Punct::new('&', Spacing::Alone).into(),
24 Punct::new('\'', Spacing::Alone).into(),
25 Ident::new("a", Span::call_site()).into(),
26 Ident::new("u8", Span::call_site()).into(),
28 trees.into_iter().collect()