diff --git a/src/test/run-pass/invalid_const_promotion.rs b/src/test/run-pass/invalid_const_promotion.rs new file mode 100644 index 000000000000..eb6deb13993b --- /dev/null +++ b/src/test/run-pass/invalid_const_promotion.rs @@ -0,0 +1,35 @@ +// Copyright 2018 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. + +#![feature(const_fn)] +#![allow(const_err)] + +use std::env; +use std::process::{Command, Stdio}; + +const fn bar() -> usize { 0 - 1 } + +fn foo() { + let _: &'static _ = &bar(); +} + +fn main() { + let args: Vec = env::args().collect(); + if args.len() > 1 && args[1] == "test" { + foo(); + return; + } + + let mut p = Command::new(&args[0]) + .stdout(Stdio::piped()) + .stdin(Stdio::piped()) + .arg("test").output().unwrap(); + assert!(!p.status.success()); +} \ No newline at end of file