29 lines
1.1 KiB
Rust
29 lines
1.1 KiB
Rust
// Copyright 2014 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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#![feature(trace_macros)]
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fn main() {
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trace_macros!(); //~ ERROR trace_macros! accepts only `true` or `false`
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trace_macros!(1); //~ ERROR trace_macros! accepts only `true` or `false`
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trace_macros!(ident); //~ ERROR trace_macros! accepts only `true` or `false`
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trace_macros!(for); //~ ERROR trace_macros! accepts only `true` or `false`
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trace_macros!(true,); //~ ERROR trace_macros! accepts only `true` or `false`
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trace_macros!(false 1); //~ ERROR trace_macros! accepts only `true` or `false`
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// should be fine:
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macro_rules! expando {
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($x: ident) => { trace_macros!($x) }
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}
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expando!(true);
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}
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