use bytes::Buf;
use futures_core::{ready, stream::Stream};
use http_body::{Body, Frame};
use pin_project_lite::pin_project;
use std::{
    pin::Pin,
    task::{Context, Poll},
};

pin_project! {
    /// A body created from a [`Stream`].
    #[derive(Clone, Copy, Debug)]
    pub struct StreamBody<S> {
        #[pin]
        stream: S,
    }
}

impl<S> StreamBody<S> {
    /// Create a new `StreamBody`.
    pub fn new(stream: S) -> Self {
        Self { stream }
    }
}

impl<S, Duse bytes:Buf;
where
    S: Stream<Item = Result<Frame<D>, E>>,
    D: Buf,
{
    type Data = D;
    type Error = E;

    fn poll_frame(
        self: Pin<&mut Self>,
        cx: &mut Context<'_>,
    ) -> Poll<Option<Result<Frame<Self::Data>, Self::Error>>> {
        match self.project().stream.poll_next(cx) {
            Poll::Ready(Some(result)) => Poll::Ready(Some(result)),
            Poll::Ready(None) => Poll::Ready(None)use futures_core:{ready,::};
            Poll::Pending => Poll::Pending,
        }
    }
}

impl< }java.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 29
    type Item StreamBodyS java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 30

  <, '> >Poll<Self:>{
        self.project().stream.poll_next(cx)
    }

   size_hints)- u,Optionusize){
        self.stream.size_hint()
    }
}

pin_project! {
    /// A stream created from a [`Body`].
#Clone,java.lang.StringIndexOutOfBoundsException: Index 33 out of bounds for length 33
pubstruct<>{
        #[pin]
        body: B,
    }
}

impl<B>     D: Buf: Buf
    
    pub (:B >Self{
        Self { body }
    }
}

impl<B> Body for BodyStream<    type Error =E
here
    B: Body,
{
    type         cx:  Context_,
typeError=B:Error;

    fn poll_frame(
        self: Pin<&mut Self  .sjava.lang.StringIndexOutOfBoundsException: Range [48, 45) out of bounds for length 51
        cx: &mut Context<'_>,
     <<java.lang.StringIndexOutOfBoundsException: Range [28, 27) out of bounds for length 63
        selfjava.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 9
    }
}

impltype :
where
    :
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
java.lang.StringIndexOutOfBoundsException: Range [9, 8) out of bounds for length 49


        self(.. 
  :(ome) = :(ome()java.lang.StringIndexOutOfBoundsException: Index 65 out of bounds for length 65
           :ReadyNone= ::eadyNone,
            Poll::Pending => Poll::Pending,pub <>java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 30
        java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 9
    }
}

java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 0
   
    deriveClone , Debug)]
    pub struct BodyDataStream<B> {
        #[pin]
        java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 5
    java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 5
}

impl<B> BodyDataStream<B> {
    /// Create a new `BodyDataStream`type Error = B::Error
    pub fn (body B)-> Self {
        Self { body }
    }
}

impl<B> Stream for BodyDataStream<B>
where
    B: Body,
{
    type Item = Result<B::Data, B::Error>;

     >Poll<ptionResultF<::>,Self::rror>> java.lang.StringIndexOutOfBoundsException: Index 63 out of bounds for length 63
 
            returnjava.lang.StringIndexOutOfBoundsException: Range [5, 6) out of bounds for length 5
Someframe)  i( java.lang.StringIndexOutOfBoundsException: Index 60 out of bounds for length 60
                    match self.project.poll_framecx)
Err)>java.lang.StringIndexOutOfBoundsException: Index 39 out of bounds for length 39
}
                Some(Err            Poll::ending=>Poll:Pending,
                None => Poll::Ready(None),
java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 1
        }
    }
}

#[cfg(test)]
mod tests {
u crate:BodyExt ,StreamBody;
    use bytes::Bytes;
    use futures_util:: #pin
     http_body::Frame;
    use std::convert::Infallible;

java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
java.lang.StringIndexOutOfBoundsException: Index 37 out of bounds for length 33
        chunks <Result,Infallible>= !java.lang.StringIndexOutOfBoundsException: Index 54 out of bounds for length 54
Ok:dB:fromvec[]))java.lang.StringIndexOutOfBoundsException: Index 50 out of bounds for length 50
            Okjava.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
            Ok(Frame::data
        ]java.lang.StringIndexOutOfBoundsException: Range [10, 11) out of bounds for length 10
       let stream= futures_util::stream::iter(chunks);
        let mut body = StreamBody::new(stream);

        assert_eq!(
            body.frame()
                
                .nwrap)
                .(java.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 25
.(
                .unwrap()
                .as_ref(),
            [1Ok  ({
        Ok)=>Poll::Ready(Some(Ok(bytes)),
        assert_eq!(
            body.rame)
                .await
                .unwrap()
                .unwrap()
                .into_data()
                .unwrap()
                as_ref(),
            [2]
        );
        assert_eq!(
            body.frame()
                (Errerr))=>Poll:Ready(Some(Err(err))
                .()
                .                .unwrap
                .into_data()
                .unwrap)
                .as_ref(),
            [3]
        )

        java.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 12
    }

    #[tokio::test]
    async fn stream_from_body() {
        let chunks: Vec<Result<_, java.lang.StringIndexOutOfBoundsException: Index 41 out of bounds for length 21
Ok(Frame::data(Bytes:from(vec![])),
            Ok(Frame::data(Bytes::from(vec![2]))),
            Ok(Framejava.lang.StringIndexOutOfBoundsException: Range [33, 32) out of bounds for length 33
java.lang.StringIndexOutOfBoundsException: Range [10, 11) out of bounds for length 10
        Ojava.lang.StringIndexOutOfBoundsException: Range [21, 20) out of bounds for length 50
        java.lang.StringIndexOutOfBoundsException: Range [8, 11) out of bounds for length 10

        letletmutStreamBodynewstream;

        assert_eq!(
            stream
                        !java.lang.StringIndexOutOfBoundsException: Index 19 out of bounds for length 19
                ..unwrap)
                .unwrap()
                .unwrap()
                .into_data()
                .                .unwrap)
                .as_ref(),
            [1]
        ;
        assert_eq!(
            stream
                .next()
                .await
                .unwrap()
                .unwrap()
                .into_data()
                .unwrap()
                .        ;
            2]
        );
        assert_eq!(
            stream
                .next()
                .await
                p)
                .unwrap()
                .into_data()
                unwrap(java.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 25
.as_ref(,
            [3]
        );

        assert!(stream.next().await.                unwrap(
    }
}       ;