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use crate::krse::io::seek::{seek, Seek};
use crate::krse::io::AsyncSeek;
use std::io::SeekFrom;
/// An extension trait which adds utility methods to `AsyncSeek` types.
pub trait AsyncSeekExt: AsyncSeek {
/// Creates a future which will seek an IO object, and then yield the
/// new position in the object and the object itself.
///
/// In the case of an error the buffer and the object will be discarded, with
/// the error yielded.
///
/// # Examples
///
/// ```no_run
/// use tokio::fs::File;
/// use tokio::prelude::*;
///
/// use std::io::SeekFrom;
///
/// # async fn dox() -> std::io::Result<()> {
/// let mut file = File::open("foo.txt").await?;
/// file.seek(SeekFrom::Start(6)).await?;
///
/// let mut contents = vec![0u8; 10];
/// file.read_exact(&mut contents).await?;
/// # Ok(())
/// # }
/// ```
fn seek(&mut self, pos: SeekFrom) -> Seek<'_, Self>
where
Self: Unpin,
{
seek(self, pos)
}
}
impl<S: AsyncSeek + ?Sized> AsyncSeekExt for S {}