26 lines
771 B
Rust
26 lines
771 B
Rust
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// Double-check we didn't go too far with our resolution to issue
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// #62007: assigning over a field projection (`list.1 = n;` in this
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// case) should kill only borrows of `list.1`; `list.0` can *not*
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// necessarily be borrowed on the next iteration through the 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<'a, T>(mut list: (&'a mut List<T>, &'a mut List<T>)) -> Vec<&'a mut T> {
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let mut result = vec![];
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loop {
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result.push(&mut (list.0).value); //~ ERROR cannot borrow `list.0.value` as mutable
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if let Some(n) = (list.0).next.as_mut() { //~ ERROR cannot borrow `list.0.next` as mutable
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list.1 = 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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