| // Regression test for issue #27592. | |
| fn write<'a, F: ::std::ops::FnOnce()->::std::fmt::Arguments<'a> + 'a>(fcn: F) { | |
| use std::fmt::Write; | |
| let _ = match fcn() { a => write!(&mut Stream, "{}", a), }; | |
| } | |
| struct Stream; | |
| impl ::std::fmt::Write for Stream { | |
| fn write_str(&mut self, _s: &str) -> ::std::fmt::Result { | |
| Ok( () ) | |
| } | |
| } | |
| fn main() { | |
| write(|| format_args!("{}", String::from("Hello world"))); | |
| //~^ ERROR borrowed value does not live long enough | |
| //~| ERROR borrowed value does not live long enough | |
| } |