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- linked-list cursor-like patterns - issue-46589 These are known-bugs for the polonius alpha, where they show the same imprecision as NLLs, but are supported by the old datalog implementation.
33 lines
669 B
Rust
33 lines
669 B
Rust
//@ ignore-compare-mode-polonius (explicit revisions)
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//@ revisions: nll polonius legacy
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//@ [nll] known-bug: #46589
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//@ [polonius] known-bug: #46589
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//@ [polonius] compile-flags: -Zpolonius=next
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//@ [legacy] check-pass
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//@ [legacy] compile-flags: -Zpolonius=legacy
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struct Foo;
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impl Foo {
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fn get_self(&mut self) -> Option<&mut Self> {
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Some(self)
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}
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fn new_self(&mut self) -> &mut Self {
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self
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}
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fn trigger_bug(&mut self) {
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let other = &mut (&mut *self);
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*other = match (*other).get_self() {
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Some(s) => s,
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None => (*other).new_self()
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};
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let c = other;
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}
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}
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fn main() {}
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