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.
11 // aux-build:proc-macro-gates.rs
13 #![feature(stmt_expr_attributes)]
15 extern crate proc_macro_gates as foo;
19 // NB. these errors aren't the best errors right now, but they're definitely
20 // intended to be errors. Somehow using a custom attribute in these positions
21 // should either require a feature gate or not be allowed on stable.
23 fn _test6<#[a] T>() {}
24 //~^ ERROR: unknown to the compiler
28 #[a] //~ ERROR: unknown to the compiler