16 lines
463 B
Rust
16 lines
463 B
Rust
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//@ revisions: edition2021 edition2024
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//@ [edition2024] compile-flags: -Zunstable-options
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//@ [edition2024] edition: 2024
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//@ [edition2021] check-pass
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fn why_would_you_do_this() -> bool {
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let mut x = None;
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// Make a temporary `RefCell` and put a `Ref` that borrows it in `x`.
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x.replace(std::cell::RefCell::new(123).borrow()).is_some()
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//[edition2024]~^ ERROR: temporary value dropped while borrowed
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}
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fn main() {
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why_would_you_do_this();
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}
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