From cff9efde748b6027fe9f135ddd5aaf8a3276601d Mon Sep 17 00:00:00 2001
From: John Kåre Alsaker <john.kare.alsaker@gmail.com>
Date: Tue, 22 Apr 2025 07:02:27 +0200
Subject: Add a jobserver proxy to ensure at least one token is always held

---
 compiler/rustc_query_impl/src/plumbing.rs | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'compiler/rustc_query_impl/src')

diff --git a/compiler/rustc_query_impl/src/plumbing.rs b/compiler/rustc_query_impl/src/plumbing.rs
index 19ccc5587d6..ea37dc5489b 100644
--- a/compiler/rustc_query_impl/src/plumbing.rs
+++ b/compiler/rustc_query_impl/src/plumbing.rs
@@ -4,6 +4,7 @@
 
 use std::num::NonZero;
 
+use rustc_data_structures::jobserver::Proxy;
 use rustc_data_structures::stable_hasher::{HashStable, StableHasher};
 use rustc_data_structures::sync::{DynSend, DynSync};
 use rustc_data_structures::unord::UnordMap;
@@ -69,6 +70,11 @@ impl<'tcx> HasDepContext for QueryCtxt<'tcx> {
 impl<'tcx> QueryContext for QueryCtxt<'tcx> {
     type QueryInfo = QueryStackDeferred<'tcx>;
 
+    #[inline]
+    fn jobserver_proxy(&self) -> &Proxy {
+        &*self.jobserver_proxy
+    }
+
     #[inline]
     fn next_job_id(self) -> QueryJobId {
         QueryJobId(
-- 
cgit 1.4.1-3-g733a5