// Copyright 2012-2014 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 or the MIT license // , at your // option. This file may not be copied, modified, or distributed // except according to those terms. // compile-flags: -C debug-assertions=no // exec-env:RUST_LOG=conditional-debug-macro-off=4 #![feature(rustc_private)] #[macro_use] extern crate log; pub fn main() { // only panics if println! evaluates its argument. debug!("{:?}", { if true { panic!() } }); }