21 lines
777 B
Rust
21 lines
777 B
Rust
// Copyright 2015 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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macro_rules! foo {
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($a:expr) => $a; //~ ERROR macro rhs must be delimited
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}
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fn main() {
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foo!(0); // Check that we report errors at macro definition, not expansion.
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let _: cfg!(foo) = (); //~ ERROR non-type macro in type position
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derive!(); //~ ERROR `derive` can only be used in attributes
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}
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