src/test/compile-fail/trace_macros-gate2.rs


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20

// Copyright 2015 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 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.

// Test that the trace_macros feature gate is on.

fn main() {
    // (Infrastructure does not attempt to detect uses in macro definitions.)
    macro_rules! expando {
        ($x: ident) => { trace_macros!($x) }
    }

    expando!(true); //~ ERROR `trace_macros` is not stable
}