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40 lines
816 B
Rust
40 lines
816 B
Rust
//@ check-pass
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//@ revisions: current next
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//@ ignore-compare-mode-next-solver (explicit revisions)
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//@[next] compile-flags: -Znext-solver
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//@ edition: 2024
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// Regression test for <https://github.com/rust-lang/trait-system-refactor-initiative/issues/185>.
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// Avoid unnecessarily computing the RPITIT type of the first impl when checking the WF of the
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// second impl, since the first impl relies on the hidden type of the second impl.
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use std::future::Future;
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trait Handler {}
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struct W<T>(T);
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trait SendTarget {
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fn call(self) -> impl Future<Output = ()> + Send;
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}
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impl<T> SendTarget for W<T>
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where
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T: Handler + Send,
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{
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async fn call(self) {
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todo!()
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}
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}
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impl<T> SendTarget for T
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where
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T: Handler + Send,
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{
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async fn call(self) {
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W(self).call().await
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}
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}
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fn main() {}
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