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Do not use cfg_if for embedded-hal-async feature gates.

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Old code used `cfg_if!` because rustc still parses code inside disabled cfg's, and Rust stable at that time couldn't parse the new GAT where-clause location. This is not the case anymore.
This commit is contained in:
Dario Nieuwenhuis 2022-08-31 02:46:52 +02:00
parent fe08bdf0d8
commit 8ba421f324
10 changed files with 380 additions and 378 deletions
embassy-stm32/src/usart
mod.rs

97
embassy-stm32/src/usart/mod.rs
View file

@ -361,64 +361,69 @@ mod eh1 {
}
}
cfg_if::cfg_if! {
if #[cfg(all(feature = "unstable-traits", feature = "nightly", feature = "_todo_embedded_hal_serial"))] {
use core::future::Future;
#[cfg(all(
feature = "unstable-traits",
feature = "nightly",
feature = "_todo_embedded_hal_serial"
))]
mod eha {
use core::future::Future;
impl<'d, T: BasicInstance, TxDma> embedded_hal_async::serial::Write for UartTx<'d, T, TxDma>
where
TxDma: crate::usart::TxDma<T>,
{
type WriteFuture<'a> = impl Future<Output = Result<(), Self::Error>> + 'a where Self: 'a;
use super::*;
fn write<'a>(&'a mut self, buf: &'a [u8]) -> Self::WriteFuture<'a> {
self.write(buf)
}
impl<'d, T: BasicInstance, TxDma> embedded_hal_async::serial::Write for UartTx<'d, T, TxDma>
where
TxDma: crate::usart::TxDma<T>,
{
type WriteFuture<'a> = impl Future<Output = Result<(), Self::Error>> + 'a where Self: 'a;
type FlushFuture<'a> = impl Future<Output = Result<(), Self::Error>> + 'a where Self: 'a;
fn flush<'a>(&'a mut self) -> Self::FlushFuture<'a> {
async move { Ok(()) }
}
fn write<'a>(&'a mut self, buf: &'a [u8]) -> Self::WriteFuture<'a> {
self.write(buf)
}
impl<'d, T: BasicInstance, RxDma> embedded_hal_async::serial::Read for UartRx<'d, T, RxDma>
where
RxDma: crate::usart::RxDma<T>,
{
type ReadFuture<'a> = impl Future<Output = Result<(), Self::Error>> + 'a where Self: 'a;
type FlushFuture<'a> = impl Future<Output = Result<(), Self::Error>> + 'a where Self: 'a;
fn read<'a>(&'a mut self, buf: &'a mut [u8]) -> Self::ReadFuture<'a> {
self.read(buf)
}
fn flush<'a>(&'a mut self) -> Self::FlushFuture<'a> {
async move { Ok(()) }
}
}
impl<'d, T: BasicInstance, RxDma> embedded_hal_async::serial::Read for UartRx<'d, T, RxDma>
where
RxDma: crate::usart::RxDma<T>,
{
type ReadFuture<'a> = impl Future<Output = Result<(), Self::Error>> + 'a where Self: 'a;
fn read<'a>(&'a mut self, buf: &'a mut [u8]) -> Self::ReadFuture<'a> {
self.read(buf)
}
}
impl<'d, T: BasicInstance, TxDma, RxDma> embedded_hal_async::serial::Write for Uart<'d, T, TxDma, RxDma>
where
TxDma: crate::usart::TxDma<T>,
{
type WriteFuture<'a> = impl Future<Output = Result<(), Self::Error>> + 'a where Self: 'a;
fn write<'a>(&'a mut self, buf: &'a [u8]) -> Self::WriteFuture<'a> {
self.write(buf)
}
impl<'d, T: BasicInstance, TxDma, RxDma> embedded_hal_async::serial::Write for Uart<'d, T, TxDma, RxDma>
where
TxDma: crate::usart::TxDma<T>,
{
type WriteFuture<'a> = impl Future<Output = Result<(), Self::Error>> + 'a where Self: 'a;
type FlushFuture<'a> = impl Future<Output = Result<(), Self::Error>> + 'a where Self: 'a;
fn write<'a>(&'a mut self, buf: &'a [u8]) -> Self::WriteFuture<'a> {
self.write(buf)
}
type FlushFuture<'a> = impl Future<Output = Result<(), Self::Error>> + 'a where Self: 'a;
fn flush<'a>(&'a mut self) -> Self::FlushFuture<'a> {
async move { Ok(()) }
}
fn flush<'a>(&'a mut self) -> Self::FlushFuture<'a> {
async move { Ok(()) }
}
}
impl<'d, T: BasicInstance, TxDma, RxDma> embedded_hal_async::serial::Read for Uart<'d, T, TxDma, RxDma>
where
RxDma: crate::usart::RxDma<T>,
{
type ReadFuture<'a> = impl Future<Output = Result<(), Self::Error>> + 'a where Self: 'a;
impl<'d, T: BasicInstance, TxDma, RxDma> embedded_hal_async::serial::Read for Uart<'d, T, TxDma, RxDma>
where
RxDma: crate::usart::RxDma<T>,
{
type ReadFuture<'a> = impl Future<Output = Result<(), Self::Error>> + 'a where Self: 'a;
fn read<'a>(&'a mut self, buf: &'a mut [u8]) -> Self::ReadFuture<'a> {
self.read(buf)
}
fn read<'a>(&'a mut self, buf: &'a mut [u8]) -> Self::ReadFuture<'a> {
self.read(buf)
}
}
}