bjoernager/rust
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Remove crossbeam-channel

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The standard library's std::sync::mpsc basically is a crossbeam channel,
and for the use case here will definitely suffice. This drops this
dependency from librustc_driver.
This commit is contained in:
Mark Rousskov 2024-01-07 19:13:04 -05:00
parent 75c68cfd2b
commit be0293f468
3 changed files with 8 additions and 10 deletions
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16
compiler/rustc_expand/src/proc_macro.rs
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@ -13,16 +13,16 @@ use rustc_session::config::ProcMacroExecutionStrategy;
use rustc_span::profiling::SpannedEventArgRecorder;
use rustc_span::{Span, DUMMY_SP};
struct CrossbeamMessagePipe<T> {
tx: crossbeam_channel::Sender<T>,
rx: crossbeam_channel::Receiver<T>,
struct MessagePipe<T> {
tx: std::sync::mpsc::SyncSender<T>,
rx: std::sync::mpsc::Receiver<T>,
}
impl<T> pm::bridge::server::MessagePipe<T> for CrossbeamMessagePipe<T> {
impl<T> pm::bridge::server::MessagePipe<T> for MessagePipe<T> {
fn new() -> (Self, Self) {
let (tx1, rx1) = crossbeam_channel::bounded(1);
let (tx2, rx2) = crossbeam_channel::bounded(1);
(CrossbeamMessagePipe { tx: tx1, rx: rx2 }, CrossbeamMessagePipe { tx: tx2, rx: rx1 })
let (tx1, rx1) = std::sync::mpsc::sync_channel(1);
let (tx2, rx2) = std::sync::mpsc::sync_channel(1);
(MessagePipe { tx: tx1, rx: rx2 }, MessagePipe { tx: tx2, rx: rx1 })
}
fn send(&mut self, value: T) {
@ -35,7 +35,7 @@ impl<T> pm::bridge::server::MessagePipe<T> for CrossbeamMessagePipe<T> {
}
fn exec_strategy(ecx: &ExtCtxt<'_>) -> impl pm::bridge::server::ExecutionStrategy {
pm::bridge::server::MaybeCrossThread::<CrossbeamMessagePipe<_>>::new(
pm::bridge::server::MaybeCrossThread::<MessagePipe<_>>::new(
ecx.sess.opts.unstable_opts.proc_macro_execution_strategy
== ProcMacroExecutionStrategy::CrossThread,
)