src/test/ui/macro_backtrace/main.rs

// 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 <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 macro backtrace facility works
// aux-build:ping.rs
// compile-flags: -Z external-macro-backtrace

#[macro_use] extern crate ping;

// a local macro
macro_rules! pong {
    () => { syntax error };
}
//~^^ ERROR expected one of
//~| ERROR expected one of
//~| ERROR expected one of

fn main() {
    pong!();
    ping!();
    deep!();
}