29 lines
1,005 B
Rust
29 lines
1,005 B
Rust
// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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// Regression test for issue #27592.
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fn write<'a, F: ::std::ops::FnOnce()->::std::fmt::Arguments<'a> + 'a>(fcn: F) {
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use std::fmt::Write;
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let _ = match fcn() { a => write!(&mut Stream, "{}", a), };
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}
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struct Stream;
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impl ::std::fmt::Write for Stream {
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fn write_str(&mut self, _s: &str) -> ::std::fmt::Result {
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Ok( () )
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}
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}
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fn main() {
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write(|| format_args!("{}", String::from("Hello world")));
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//~^ ERROR borrowed value does not live long enough
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//~| ERROR borrowed value does not live long enough
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}
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