fn poll_trailers()

in dubbo/src/triple/encode.rs [174:195]

• 20 lines of code
• 3 McCabe index (conditional complexity)

    fn poll_trailers(
        self: Pin<&mut Self>,
        _cx: &mut std::task::Context<'_>,
    ) -> Poll<Result<Option<http::HeaderMap>, Self::Error>> {
        let self_proj = self.project();
        if *self_proj.is_end_stream {
            return Poll::Ready(Ok(None));
        }

        let status = if let Some(status) = self_proj.error.take() {
            *self_proj.is_end_stream = true;
            status
        } else {
            crate::status::Status::new(
                crate::status::Code::Ok,
                "poll trailer successfully.".to_string(),
            )
        };
        let http = status.to_http();

        Poll::Ready(Ok(Some(http.headers().to_owned())))
    }