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28 lines
602 B
Rust
28 lines
602 B
Rust
// run-pass
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// Issue #62007: assigning over a deref projection of a box (in this
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// case, `*list = n;`) should be able to kill all borrows of `*list`,
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// so that `*list` can be borrowed on the next iteration through the
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// loop.
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#![allow(dead_code)]
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struct List<T> {
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value: T,
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next: Option<Box<List<T>>>,
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}
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fn to_refs<T>(mut list: Box<&mut List<T>>) -> Vec<&mut T> {
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let mut result = vec![];
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loop {
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result.push(&mut list.value);
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if let Some(n) = list.next.as_mut() {
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*list = n;
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} else {
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return result;
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}
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}
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}
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fn main() {}
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