1 files changed, 6 insertions, 0 deletions

diff --git a/crates/ra_db/src/cancellation.rs b/crates/ra_db/src/cancellation.rs
index 8d38eebfb..32a268553 100644
--- a/crates/ra_db/src/cancellation.rs
+++ b/crates/ra_db/src/cancellation.rs
@@ -27,6 +27,12 @@ impl Canceled {
     pub(crate) fn new() -> Canceled {
         Canceled { _private: () }
     }
+
+    pub fn throw() -> ! {
+        // We use resume and not panic here to avoid running the panic
+        // hook (that is, to avoid collecting and printing backtrace).
+        std::panic::resume_unwind(Box::new(Canceled::new()))
+    }
 }
 
 impl std::fmt::Display for Canceled {