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use std::pin::Pin; use std::future::Future; use crate::io::{self, Seek, SeekFrom}; use crate::task::{Context, Poll}; #[doc(hidden)] #[allow(missing_debug_implementations)] pub struct SeekFuture<'a, T: Unpin + ?Sized> { pub(crate) seeker: &'a mut T, pub(crate) pos: SeekFrom, } impl<T: Seek + Unpin + ?Sized> Future for SeekFuture<'_, T> { type Output = io::Result<u64>; fn poll(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output> { let pos = self.pos; Pin::new(&mut *self.seeker).poll_seek(cx, pos) } }