| use crate::sink::{SinkExt, SinkMapErr}; |
| use core::pin::Pin; |
| use futures_core::stream::Stream; |
| use futures_core::task::{Context, Poll}; |
| use futures_sink::{Sink}; |
| use pin_utils::unsafe_pinned; |
| |
| /// Sink for the [`sink_err_into`](super::SinkExt::sink_err_into) method. |
| #[derive(Debug)] |
| #[must_use = "futures do nothing unless polled"] |
| pub struct SinkErrInto<Si: Sink<Item>, Item, E> { |
| sink: SinkMapErr<Si, fn(Si::SinkError) -> E>, |
| } |
| |
| impl<Si, E, Item> SinkErrInto<Si, Item, E> |
| where Si: Sink<Item>, |
| Si::SinkError: Into<E>, |
| { |
| unsafe_pinned!(sink: SinkMapErr<Si, fn(Si::SinkError) -> E>); |
| |
| pub(super) fn new(sink: Si) -> Self { |
| SinkErrInto { |
| sink: SinkExt::sink_map_err(sink, Into::into), |
| } |
| } |
| |
| /// Get a shared reference to the inner sink. |
| pub fn get_ref(&self) -> &Si { |
| self.sink.get_ref() |
| } |
| |
| /// Get a mutable reference to the inner sink. |
| pub fn get_mut(&mut self) -> &mut Si { |
| self.sink.get_mut() |
| } |
| |
| /// Get a pinned mutable reference to the inner sink. |
| pub fn get_pin_mut<'a>(self: Pin<&'a mut Self>) -> Pin<&'a mut Si> { |
| self.sink().get_pin_mut() |
| } |
| |
| /// Consumes this combinator, returning the underlying sink. |
| /// |
| /// Note that this may discard intermediate state of this combinator, so |
| /// care should be taken to avoid losing resources when this is called. |
| pub fn into_inner(self) -> Si { |
| self.sink.into_inner() |
| } |
| } |
| |
| impl<Si, Item, E> Sink<Item> for SinkErrInto<Si, Item, E> |
| where Si: Sink<Item>, |
| Si::SinkError: Into<E>, |
| { |
| type SinkError = E; |
| |
| delegate_sink!(sink, Item); |
| } |
| |
| impl<S, Item, E> Stream for SinkErrInto<S, Item, E> |
| where S: Sink<Item> + Stream, |
| S::SinkError: Into<E> |
| { |
| type Item = S::Item; |
| |
| fn poll_next( |
| self: Pin<&mut Self>, |
| cx: &mut Context<'_>, |
| ) -> Poll<Option<S::Item>> { |
| self.sink().poll_next(cx) |
| } |
| } |