43 lines
987 B
Rust
43 lines
987 B
Rust
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// Copyright 2016 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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// compile-flags:-Znll -Zborrowck=mir -Zverbose
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// must-compile-successfully
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// Test that we assume that universal types like `T` outlive the
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// function body.
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#![allow(warnings)]
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#![feature(rustc_attrs)]
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use std::cell::Cell;
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fn twice<F, T>(value: T, mut f: F)
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where
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F: FnMut(Cell<&T>),
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{
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f(Cell::new(&value));
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f(Cell::new(&value));
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}
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#[rustc_errors]
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fn generic<T>(value: T) {
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// No error here:
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twice(value, |r| invoke(r));
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}
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fn invoke<'a, T>(x: Cell<&'a T>)
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where
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T: 'a,
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{
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}
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fn main() {}
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