// Copyright 2017 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. // `ty` matcher accepts trait object types macro_rules! m { ($t: ty) => ( let _: $t; ) } fn main() { m!(Copy + Send + 'static); //~ ERROR the trait `std::marker::Copy` cannot be made into an object m!('static + Send); m!('static +); //~ ERROR at least one non-builtin trait is required for an object type }