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tokio: remove wildcard in match pattern #5970

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merged 9 commits into from
Sep 23, 2023
Merged

tokio: remove wildcard in match pattern #5970

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20344f1
fix: no use * in match handle
wathenjiang Sep 1, 2023
ebbeb14
fix: ci
wathenjiang Sep 1, 2023
1346570
more clear enum use and reduce noise
wathenjiang Sep 1, 2023
d860399
fix: rm /test_ci.rs
wathenjiang Sep 1, 2023
f9a93cc
add Poll:: enum name
wathenjiang Sep 2, 2023
168e684
add enum prefix
wathenjiang Sep 2, 2023
58fb956
rm alias of enum
wathenjiang Sep 3, 2023
2bdcfbb
Merge branch 'master' into misuse-asterisk
wathenjiang Sep 8, 2023
eafd019
Merge branch 'master' into misuse-asterisk
Darksonn Sep 23, 2023
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16 changes: 8 additions & 8 deletions tokio-macros/src/entry.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -126,22 +126,22 @@ impl Configuration {
}

fn build(&self) -> Result<FinalConfig, syn::Error> {
let flavor = self.flavor.unwrap_or(self.default_flavor);
use RuntimeFlavor::*;
use RuntimeFlavor as F;

let flavor = self.flavor.unwrap_or(self.default_flavor);
let worker_threads = match (flavor, self.worker_threads) {
(CurrentThread, Some((_, worker_threads_span))) => {
(F::CurrentThread, Some((_, worker_threads_span))) => {
let msg = format!(
"The `worker_threads` option requires the `multi_thread` runtime flavor. Use `#[{}(flavor = \"multi_thread\")]`",
self.macro_name(),
);
return Err(syn::Error::new(worker_threads_span, msg));
}
(CurrentThread, None) => None,
(Threaded, worker_threads) if self.rt_multi_thread_available => {
(F::CurrentThread, None) => None,
(F::Threaded, worker_threads) if self.rt_multi_thread_available => {
worker_threads.map(|(val, _span)| val)
}
(Threaded, _) => {
(F::Threaded, _) => {
let msg = if self.flavor.is_none() {
"The default runtime flavor is `multi_thread`, but the `rt-multi-thread` feature is disabled."
} else {
Expand All @@ -152,14 +152,14 @@ impl Configuration {
};

let start_paused = match (flavor, self.start_paused) {
(Threaded, Some((_, start_paused_span))) => {
(F::Threaded, Some((_, start_paused_span))) => {
let msg = format!(
"The `start_paused` option requires the `current_thread` runtime flavor. Use `#[{}(flavor = \"current_thread\")]`",
self.macro_name(),
);
return Err(syn::Error::new(start_paused_span, msg));
}
(CurrentThread, Some((start_paused, _))) => Some(start_paused),
(F::CurrentThread, Some((start_paused, _))) => Some(start_paused),
(_, None) => None,
};

Expand Down
18 changes: 8 additions & 10 deletions tokio-stream/src/stream_ext/merge.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -66,25 +66,23 @@ where
T: Stream,
U: Stream<Item = T::Item>,
{
use Poll::*;

let mut done = true;

match first.poll_next(cx) {
Ready(Some(val)) => return Ready(Some(val)),
Ready(None) => {}
Pending => done = false,
Poll::Ready(Some(val)) => return Poll::Ready(Some(val)),
Poll::Ready(None) => {}
Poll::Pending => done = false,
}

match second.poll_next(cx) {
Ready(Some(val)) => return Ready(Some(val)),
Ready(None) => {}
Pending => done = false,
Poll::Ready(Some(val)) => return Poll::Ready(Some(val)),
Poll::Ready(None) => {}
Poll::Pending => done = false,
}

if done {
Ready(None)
Poll::Ready(None)
} else {
Pending
Poll::Pending
}
}
12 changes: 5 additions & 7 deletions tokio-stream/src/stream_map.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -518,17 +518,15 @@ where
{
/// Polls the next value, includes the vec entry index
fn poll_next_entry(&mut self, cx: &mut Context<'_>) -> Poll<Option<(usize, V::Item)>> {
use Poll::*;

let start = self::rand::thread_rng_n(self.entries.len() as u32) as usize;
let mut idx = start;

for _ in 0..self.entries.len() {
let (_, stream) = &mut self.entries[idx];

match Pin::new(stream).poll_next(cx) {
Ready(Some(val)) => return Ready(Some((idx, val))),
Ready(None) => {
Poll::Ready(Some(val)) => return Poll::Ready(Some((idx, val))),
Poll::Ready(None) => {
// Remove the entry
self.entries.swap_remove(idx);

Expand All @@ -542,17 +540,17 @@ where
idx = idx.wrapping_add(1) % self.entries.len();
}
}
Pending => {
Poll::Pending => {
idx = idx.wrapping_add(1) % self.entries.len();
}
}
}

// If the map is empty, then the stream is complete.
if self.entries.is_empty() {
Ready(None)
Poll::Ready(None)
} else {
Pending
Poll::Pending
}
}
}
Expand Down
24 changes: 12 additions & 12 deletions tokio-test/src/macros.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -22,17 +22,17 @@
#[macro_export]
macro_rules! assert_ready {
($e:expr) => {{
use core::task::Poll::*;
use core::task::Poll;
match $e {
Ready(v) => v,
Pending => panic!("pending"),
Poll::Ready(v) => v,
Poll::Pending => panic!("pending"),
}
}};
($e:expr, $($msg:tt)+) => {{
use core::task::Poll::*;
use core::task::Poll;
match $e {
Ready(v) => v,
Pending => {
Poll::Ready(v) => v,
Poll::Pending => {
panic!("pending; {}", format_args!($($msg)+))
}
}
Expand Down Expand Up @@ -127,17 +127,17 @@ macro_rules! assert_ready_err {
#[macro_export]
macro_rules! assert_pending {
($e:expr) => {{
use core::task::Poll::*;
use core::task::Poll;
match $e {
Pending => {}
Ready(v) => panic!("ready; value = {:?}", v),
Poll::Pending => {}
Poll::Ready(v) => panic!("ready; value = {:?}", v),
}
}};
($e:expr, $($msg:tt)+) => {{
use core::task::Poll::*;
use core::task::Poll;
match $e {
Pending => {}
Ready(v) => {
Poll::Pending => {}
Poll::Ready(v) => {
panic!("ready; value = {:?}; {}", v, format_args!($($msg)+))
}
}
Expand Down
91 changes: 44 additions & 47 deletions tokio-util/tests/length_delimited.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -12,7 +12,6 @@ use futures::{pin_mut, Sink, Stream};
use std::collections::VecDeque;
use std::io;
use std::pin::Pin;
use std::task::Poll::*;
use std::task::{Context, Poll};

macro_rules! mock {
Expand All @@ -39,21 +38,21 @@ macro_rules! assert_next_eq {
macro_rules! assert_next_pending {
($io:ident) => {{
task::spawn(()).enter(|cx, _| match $io.as_mut().poll_next(cx) {
Ready(Some(Ok(v))) => panic!("value = {:?}", v),
Ready(Some(Err(e))) => panic!("error = {:?}", e),
Ready(None) => panic!("done"),
Pending => {}
Poll::Ready(Some(Ok(v))) => panic!("value = {:?}", v),
Poll::Ready(Some(Err(e))) => panic!("error = {:?}", e),
Poll::Ready(None) => panic!("done"),
Poll::Pending => {}
});
}};
}

macro_rules! assert_next_err {
($io:ident) => {{
task::spawn(()).enter(|cx, _| match $io.as_mut().poll_next(cx) {
Ready(Some(Ok(v))) => panic!("value = {:?}", v),
Ready(Some(Err(_))) => {}
Ready(None) => panic!("done"),
Pending => panic!("pending"),
Poll::Ready(Some(Ok(v))) => panic!("value = {:?}", v),
Poll::Ready(Some(Err(_))) => {}
Poll::Ready(None) => panic!("done"),
Poll::Pending => panic!("pending"),
});
}};
}
Expand Down Expand Up @@ -186,11 +185,11 @@ fn read_single_frame_multi_packet_wait() {
let io = FramedRead::new(
mock! {
data(b"\x00\x00"),
Pending,
Poll::Pending,
data(b"\x00\x09abc"),
Pending,
Poll::Pending,
data(b"defghi"),
Pending,
Poll::Pending,
},
LengthDelimitedCodec::new(),
);
Expand All @@ -208,15 +207,15 @@ fn read_multi_frame_multi_packet_wait() {
let io = FramedRead::new(
mock! {
data(b"\x00\x00"),
Pending,
Poll::Pending,
data(b"\x00\x09abc"),
Pending,
Poll::Pending,
data(b"defghi"),
Pending,
Poll::Pending,
data(b"\x00\x00\x00\x0312"),
Pending,
Poll::Pending,
data(b"3\x00\x00\x00\x0bhello world"),
Pending,
Poll::Pending,
},
LengthDelimitedCodec::new(),
);
Expand Down Expand Up @@ -250,9 +249,9 @@ fn read_incomplete_head() {
fn read_incomplete_head_multi() {
let io = FramedRead::new(
mock! {
Pending,
Poll::Pending,
data(b"\x00"),
Pending,
Poll::Pending,
},
LengthDelimitedCodec::new(),
);
Expand All @@ -268,9 +267,9 @@ fn read_incomplete_payload() {
let io = FramedRead::new(
mock! {
data(b"\x00\x00\x00\x09ab"),
Pending,
Poll::Pending,
data(b"cd"),
Pending,
Poll::Pending,
},
LengthDelimitedCodec::new(),
);
Expand Down Expand Up @@ -310,7 +309,7 @@ fn read_update_max_frame_len_at_rest() {
fn read_update_max_frame_len_in_flight() {
let io = length_delimited::Builder::new().new_read(mock! {
data(b"\x00\x00\x00\x09abcd"),
Pending,
Poll::Pending,
data(b"efghi"),
data(b"\x00\x00\x00\x09abcdefghi"),
});
Expand Down Expand Up @@ -533,9 +532,9 @@ fn write_single_multi_frame_multi_packet() {
fn write_single_frame_would_block() {
let io = FramedWrite::new(
mock! {
Pending,
Poll::Pending,
data(b"\x00\x00"),
Pending,
Poll::Pending,
data(b"\x00\x09"),
data(b"abcdefghi"),
flush(),
Expand Down Expand Up @@ -640,7 +639,7 @@ fn write_update_max_frame_len_in_flight() {
let io = length_delimited::Builder::new().new_write(mock! {
data(b"\x00\x00\x00\x06"),
data(b"ab"),
Pending,
Poll::Pending,
data(b"cdef"),
flush(),
});
Expand Down Expand Up @@ -701,24 +700,22 @@ enum Op {
Flush,
}

use self::Op::*;

impl AsyncRead for Mock {
fn poll_read(
mut self: Pin<&mut Self>,
_cx: &mut Context<'_>,
dst: &mut ReadBuf<'_>,
) -> Poll<io::Result<()>> {
match self.calls.pop_front() {
Some(Ready(Ok(Op::Data(data)))) => {
Some(Poll::Ready(Ok(Op::Data(data)))) => {
debug_assert!(dst.remaining() >= data.len());
dst.put_slice(&data);
Ready(Ok(()))
Poll::Ready(Ok(()))
}
Some(Ready(Ok(_))) => panic!(),
Some(Ready(Err(e))) => Ready(Err(e)),
Some(Pending) => Pending,
None => Ready(Ok(())),
Some(Poll::Ready(Ok(_))) => panic!(),
Some(Poll::Ready(Err(e))) => Poll::Ready(Err(e)),
Some(Poll::Pending) => Poll::Pending,
None => Poll::Ready(Ok(())),
}
}
}
Expand All @@ -730,31 +727,31 @@ impl AsyncWrite for Mock {
src: &[u8],
) -> Poll<Result<usize, io::Error>> {
match self.calls.pop_front() {
Some(Ready(Ok(Op::Data(data)))) => {
Some(Poll::Ready(Ok(Op::Data(data)))) => {
let len = data.len();
assert!(src.len() >= len, "expect={:?}; actual={:?}", data, src);
assert_eq!(&data[..], &src[..len]);
Ready(Ok(len))
Poll::Ready(Ok(len))
}
Some(Ready(Ok(_))) => panic!(),
Some(Ready(Err(e))) => Ready(Err(e)),
Some(Pending) => Pending,
None => Ready(Ok(0)),
Some(Poll::Ready(Ok(_))) => panic!(),
Some(Poll::Ready(Err(e))) => Poll::Ready(Err(e)),
Some(Poll::Pending) => Poll::Pending,
None => Poll::Ready(Ok(0)),
}
}

fn poll_flush(mut self: Pin<&mut Self>, _cx: &mut Context<'_>) -> Poll<Result<(), io::Error>> {
match self.calls.pop_front() {
Some(Ready(Ok(Op::Flush))) => Ready(Ok(())),
Some(Ready(Ok(_))) => panic!(),
Some(Ready(Err(e))) => Ready(Err(e)),
Some(Pending) => Pending,
None => Ready(Ok(())),
Some(Poll::Ready(Ok(Op::Flush))) => Poll::Ready(Ok(())),
Some(Poll::Ready(Ok(_))) => panic!(),
Some(Poll::Ready(Err(e))) => Poll::Ready(Err(e)),
Some(Poll::Pending) => Poll::Pending,
None => Poll::Ready(Ok(())),
}
}

fn poll_shutdown(self: Pin<&mut Self>, _cx: &mut Context<'_>) -> Poll<Result<(), io::Error>> {
Ready(Ok(()))
Poll::Ready(Ok(()))
}
}

Expand All @@ -771,9 +768,9 @@ impl From<Vec<u8>> for Op {
}

fn data(bytes: &[u8]) -> Poll<io::Result<Op>> {
Ready(Ok(bytes.into()))
Poll::Ready(Ok(bytes.into()))
}

fn flush() -> Poll<io::Result<Op>> {
Ready(Ok(Flush))
Poll::Ready(Ok(Op::Flush))
}
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