21 lines
792 B
Rust
21 lines
792 B
Rust
// Copyright 2017 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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// `ty` matcher accepts trait object types
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macro_rules! m {
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($t: ty) => ( let _: $t; )
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}
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fn main() {
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m!(Copy + Send + 'static); //~ ERROR the trait `std::marker::Copy` cannot be made into an object
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m!('static + Send);
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m!('static +); //~ ERROR at least one non-builtin trait is required for an object type
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}
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