Struct Empty

pub struct Empty<D> { /* private fields */ }

A body that is always empty.

Implementations

impl<D> Empty<D>

pub fn new() -> Self

Create a new Empty.

Trait Implementations

impl<D: Buf> Body for Empty<D>

type Data = D

Values yielded by the Body.

type Error = Infallible

The error type this Body might generate.

fn poll_data( self: Pin<&mut Self>, _cx: &mut Context<'_>, ) -> Poll<Option<Result<Self::Data, Self::Error>>>

Attempt to pull out the next data buffer of this stream.

fn poll_trailers( self: Pin<&mut Self>, _cx: &mut Context<'_>, ) -> Poll<Result<Option<HeaderMap>, Self::Error>>

Poll for an optional single HeaderMap of trailers.

fn is_end_stream(&self) -> bool

Returns true when the end of stream has been reached.

fn size_hint(&self) -> SizeHint

Returns the bounds on the remaining length of the stream.

fn data(&mut self) -> Data<'_, Self>

where Self: Unpin + Sized,

Returns future that resolves to next data chunk, if any.

fn trailers(&mut self) -> Trailers<'_, Self>

where Self: Unpin + Sized,

Returns future that resolves to trailers, if any.

fn map_data<F, B>(self, f: F) -> MapData<Self, F>

where Self: Sized, F: FnMut(Self::Data) -> B, B: Buf,

Maps this body’s data value to a different value.

fn map_err<F, E>(self, f: F) -> MapErr<Self, F>

where Self: Sized, F: FnMut(Self::Error) -> E,

Maps this body’s error value to a different value.

fn collect(self) -> Collect<Self>

where Self: Sized,

Turn this body into Collected body which will collect all the DATA frames and trailers.

fn boxed(self) -> BoxBody<Self::Data, Self::Error>

where Self: Sized + Send + Sync + 'static,

Turn this body into a boxed trait object.

fn boxed_unsync(self) -> UnsyncBoxBody<Self::Data, Self::Error>

where Self: Sized + Send + 'static,

Turn this body into a boxed trait object that is !Sync.

impl<D> Clone for Empty<D>

fn clone(&self) -> Self

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<D> Debug for Empty<D>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<D> Default for Empty<D>

fn default() -> Self

Returns the “default value” for a type.

impl<D> Copy for Empty<D>