38 lines
1.1 KiB
Rust
38 lines
1.1 KiB
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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// This is just checking that we still reject code where temp values
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// are borrowing values for longer than they will be around.
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//
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// Compare to run-pass/issue-23338-params-outlive-temps-of-body.rs
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use std::cell::RefCell;
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fn foo(x: RefCell<String>) -> String {
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let y = x;
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y.borrow().clone()
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}
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//~^ ERROR `y` does not live long enough
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fn foo2(x: RefCell<String>) -> String {
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let ret = {
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let y = x;
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y.borrow().clone() //~ ERROR `y` does not live long enough
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};
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ret
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}
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fn main() {
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let r = RefCell::new(format!("data"));
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assert_eq!(foo(r), "data");
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let r = RefCell::new(format!("data"));
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assert_eq!(foo2(r), "data");
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}
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