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:attr-stmt-expr.rs
14 //! Attributes producing expressions in invalid locations
16 #![feature(use_extern_macros, stmt_expr_attributes, proc_macro_expr)]
18 extern crate attr_stmt_expr;
19 use attr_stmt_expr::{duplicate, no_output};
22 let _ = #[no_output] "Hello, world!";
23 //~^ ERROR expected expression, found `<eof>`
25 let _ = #[duplicate] "Hello, world!";
26 //~^ ERROR macro expansion ignores token `,` and any following
35 //~^ ERROR macro expansion ignores token `,` and any following