mirror of https://github.com/rust-lang/rust
32 lines
770 B
Rust
32 lines
770 B
Rust
// This tests passes in Polonius mode, so is skipped in the automated compare-mode.
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// We will manually check it passes in Polonius tests, as we can't have a test here
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// which conditionally passes depending on a test revision/compile-flags.
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//@ ignore-compare-mode-polonius
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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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//~^ ERROR cannot borrow `**other` as mutable more than once at a time [E0499]
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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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