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use crate::transport::{Transport, TransportError, ListenerEvent};
use crate::Multiaddr;
use futures::{prelude::*, task::Context, task::Poll};
use std::{fmt, io, marker::PhantomData, pin::Pin};
pub struct DummyTransport<TOut = DummyStream>(PhantomData<TOut>);
impl<TOut> DummyTransport<TOut> {
pub fn new() -> Self {
DummyTransport(PhantomData)
}
}
impl<TOut> Default for DummyTransport<TOut> {
fn default() -> Self {
DummyTransport::new()
}
}
impl<TOut> fmt::Debug for DummyTransport<TOut> {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
write!(f, "DummyTransport")
}
}
impl<TOut> Clone for DummyTransport<TOut> {
fn clone(&self) -> Self {
DummyTransport(PhantomData)
}
}
impl<TOut> Transport for DummyTransport<TOut> {
type Output = TOut;
type Error = io::Error;
type Listener = futures::stream::Pending<Result<ListenerEvent<Self::ListenerUpgrade, Self::Error>, Self::Error>>;
type ListenerUpgrade = futures::future::Pending<Result<Self::Output, io::Error>>;
type Dial = futures::future::Pending<Result<Self::Output, io::Error>>;
fn listen_on(self, addr: Multiaddr) -> Result<Self::Listener, TransportError<Self::Error>> {
Err(TransportError::MultiaddrNotSupported(addr))
}
fn dial(self, addr: Multiaddr) -> Result<Self::Dial, TransportError<Self::Error>> {
Err(TransportError::MultiaddrNotSupported(addr))
}
fn address_translation(&self, _server: &Multiaddr, _observed: &Multiaddr) -> Option<Multiaddr> {
None
}
}
pub struct DummyStream(());
impl fmt::Debug for DummyStream {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
write!(f, "DummyStream")
}
}
impl AsyncRead for DummyStream {
fn poll_read(self: Pin<&mut Self>, _: &mut Context<'_>, _: &mut [u8])
-> Poll<Result<usize, io::Error>>
{
Poll::Ready(Err(io::ErrorKind::Other.into()))
}
}
impl AsyncWrite for DummyStream {
fn poll_write(self: Pin<&mut Self>, _: &mut Context<'_>, _: &[u8])
-> Poll<Result<usize, io::Error>>
{
Poll::Ready(Err(io::ErrorKind::Other.into()))
}
fn poll_flush(self: Pin<&mut Self>, _: &mut Context<'_>)
-> Poll<Result<(), io::Error>>
{
Poll::Ready(Err(io::ErrorKind::Other.into()))
}
fn poll_close(self: Pin<&mut Self>, _: &mut Context<'_>)
-> Poll<Result<(), io::Error>>
{
Poll::Ready(Err(io::ErrorKind::Other.into()))
}
}