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51 lines
1.0 KiB
Rust
51 lines
1.0 KiB
Rust
// build-pass (FIXME(62277): could be check-pass?)
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#![allow(dead_code, unused)]
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use std::task::Poll;
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struct K;
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struct E;
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fn as_result() -> Result<(), E> {
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// From Result
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let K = Ok::<K, E>(K)?;
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// From Poll<Result>
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let _: Poll<K> = Poll::Ready::<Result<K, E>>(Ok(K))?;
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// From Poll<Option<Result>>
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let _: Poll<Option<K>> = Poll::Ready::<Option<Result<K, E>>>(None)?;
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Ok(())
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}
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fn as_poll_result() -> Poll<Result<(), E>> {
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// From Result
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let K = Ok::<K, E>(K)?;
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// From Poll<Result>
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let _: Poll<K> = Poll::Ready::<Result<K, E>>(Ok(K))?;
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// From Poll<Option<Result>>
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let _: Poll<Option<K>> = Poll::Ready::<Option<Result<K, E>>>(None)?;
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Poll::Ready(Ok(()))
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}
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fn as_poll_option_result() -> Poll<Option<Result<(), E>>> {
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// From Result
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let K = Ok::<K, E>(K)?;
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// From Poll<Result>
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let _: Poll<K> = Poll::Ready::<Result<K, E>>(Ok(K))?;
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// From Poll<Option<Result>>
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let _: Poll<Option<K>> = Poll::Ready::<Option<Result<K, E>>>(None)?;
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Poll::Ready(Some(Ok(())))
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}
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fn main() {
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}
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