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use futures::Stream;
use tokio::io::AsyncBufRead;
use crate::{
element::{Element, Name, Namespace},
error::Error,
};
/// streaming reader that tracks depth and available namespaces at current depth
pub struct Reader<R> {
stream: R,
// holds which tags we are in atm over depth
depth: Vec<Name>,
namespaces: Vec<(usize, Namespace)>,
}
impl<R> Reader<R>
where
R: AsyncBufRead,
{
pub async fn read(&self) -> Result<impl From<Element>, Error> {
let buf = self.stream.poll_fill_buf().await?;
todo!()
}
pub async fn read_start(&self) -> Result<impl From<Element>, Error> {}
pub async fn read_end(&self) -> Result<(), Error> {}
}
impl<R: AsyncBufRead> Stream for Reader<R> {
type Item = impl From<Element>;
async fn poll_next(
self: std::pin::Pin<&mut Self>,
cx: &mut std::task::Context<'_>,
) -> std::task::Poll<Option<Self::Item>> {
todo!()
}
}
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