From 6bcc1b8b9e9ff90a5c5442dce230dba5995ca5b5 Mon Sep 17 00:00:00 2001
From: Aleksey Kladov <aleksey.kladov@gmail.com>
Date: Wed, 29 May 2019 22:13:03 +0300
Subject: add cacellation checks to expensive queries

---
 crates/ra_hir/src/ty/traits.rs | 1 +
 1 file changed, 1 insertion(+)

(limited to 'crates/ra_hir/src/ty/traits.rs')

diff --git a/crates/ra_hir/src/ty/traits.rs b/crates/ra_hir/src/ty/traits.rs
index e6c78c0d4..fc90f56d5 100644
--- a/crates/ra_hir/src/ty/traits.rs
+++ b/crates/ra_hir/src/ty/traits.rs
@@ -82,6 +82,7 @@ pub(crate) fn implements_query(
     krate: Crate,
     trait_ref: Canonical<TraitRef>,
 ) -> Option<Solution> {
+    db.check_canceled();
     let _p = profile("implements_query");
     let goal: chalk_ir::Goal = trait_ref.value.to_chalk(db).cast();
     debug!("goal: {:?}", goal);
-- 
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