From a60168e674e04d308a92ff77a6430dbe2ac3a6a1 Mon Sep 17 00:00:00 2001
From: Aleksey Kladov <aleksey.kladov@gmail.com>
Date: Mon, 18 Jan 2021 15:58:10 +0300
Subject: Use assert_never properly

---
 crates/completion/src/item.rs | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/crates/completion/src/item.rs b/crates/completion/src/item.rs
index 0134ff219..5d91d3a5c 100644
--- a/crates/completion/src/item.rs
+++ b/crates/completion/src/item.rs
@@ -398,7 +398,9 @@ impl Builder {
     pub(crate) fn set_detail(mut self, detail: Option<impl Into<String>>) -> Builder {
         self.detail = detail.map(Into::into);
         if let Some(detail) = &self.detail {
-            assert_never!(detail.contains('\n'), "multiline detail: {}", detail);
+            if assert_never!(detail.contains('\n'), "multiline detail: {}", detail) {
+                self.detail = Some(detail.splitn(2, '\n').next().unwrap().to_string());
+            }
         }
         self
     }
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