From e9fbd47ef01adfeb43cbee97f27a102c14f5297a Mon Sep 17 00:00:00 2001
From: Liu Dingming <liudingming@bytedance.com>
Date: Sat, 8 Jul 2023 00:48:12 +0800
Subject: [PATCH] feat(subscriber): Add cfg `console_without_tokio_unstable`

Add cfg `console_without_tokio_unstable` for developers to turn off the
assertion on `tokio_unstable`. This is useful for non-tokio runtimes which has
`tokio-console` support.
---
 console-subscriber/src/lib.rs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/console-subscriber/src/lib.rs b/console-subscriber/src/lib.rs
index 6b0c1a75e..18db72b84 100644
--- a/console-subscriber/src/lib.rs
+++ b/console-subscriber/src/lib.rs
@@ -263,6 +263,7 @@ impl ConsoleLayer {
         // The `cfg` value *appears* to be a constant to clippy, but it changes
         // depending on the build-time configuration...
         #![allow(clippy::assertions_on_constants)]
+        #[cfg(not(console_without_tokio_unstable))]
         assert!(
             cfg!(tokio_unstable),
             "task tracing requires Tokio to be built with RUSTFLAGS=\"--cfg tokio_unstable\"!"