22 lines
784 B
Rust
22 lines
784 B
Rust
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//@ revisions: e2021 e2024
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//@[e2021] edition: 2021
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//@[e2021] run-rustfix
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//@[e2024] edition: 2024
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//@[e2024] compile-flags: -Zunstable-options
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//@[e2024] check-pass
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#![deny(rust_2024_prelude_collisions)]
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trait Meow {
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fn poll(&self) {}
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}
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impl<T> Meow for T {}
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fn main() {
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// This is a deliberate false positive.
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// While `()` does not implement `Future` and can therefore not be ambiguous, we
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// do not check that in the lint, as that introduces additional complexities.
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// Just checking whether the self type is `Pin<&mut _>` is enough.
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Meow::poll(&core::pin::pin!(()));
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//[e2021]~^ ERROR trait method `poll` will become ambiguous in Rust 2024
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//[e2021]~| WARN this is accepted in the current edition (Rust 2021) but is a hard error in Rust 2024!
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}
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