22 lines
689 B
Rust
22 lines
689 B
Rust
#![allow(clippy::wrong_self_convention)]
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use futures::{future::OptionFuture, Future, FutureExt};
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pub trait OptionExt<T> {
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fn is_none_or(self, f: impl FnOnce(&T) -> bool + Send) -> impl Future<Output = bool> + Send;
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fn is_some_and(self, f: impl FnOnce(&T) -> bool + Send) -> impl Future<Output = bool> + Send;
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}
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impl<T, Fut> OptionExt<T> for OptionFuture<Fut>
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where
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Fut: Future<Output = T> + Send,
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{
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fn is_none_or(self, f: impl FnOnce(&T) -> bool + Send) -> impl Future<Output = bool> + Send {
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self.map(|o| o.as_ref().is_none_or(f))
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}
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fn is_some_and(self, f: impl FnOnce(&T) -> bool + Send) -> impl Future<Output = bool> + Send {
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self.map(|o| o.as_ref().is_some_and(f))
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}
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}
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