forked from mirror/async-std
29 lines
709 B
Rust
29 lines
709 B
Rust
use std::collections::HashSet;
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use std::hash::{BuildHasher, Hash};
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use std::pin::Pin;
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use crate::stream::{Extend, FromStream, IntoStream};
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impl<T, H> FromStream<T> for HashSet<T, H>
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where
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T: Eq + Hash,
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H: BuildHasher + Default,
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{
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#[inline]
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fn from_stream<'a, S: IntoStream<Item = T>>(
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stream: S,
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) -> Pin<Box<dyn core::future::Future<Output = Self> + 'a>>
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where
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<S as IntoStream>::IntoStream: 'a,
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{
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let stream = stream.into_stream();
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Box::pin(async move {
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pin_utils::pin_mut!(stream);
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let mut out = HashSet::with_hasher(Default::default());
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out.stream_extend(stream).await;
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out
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})
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}
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}
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