From af7a1fd20c0a2915e0dae1b5bea7cb6bde6c2746 Mon Sep 17 00:00:00 2001
From: Lennard Hofmann <lennard.hofmann@web.de>
Date: Sun, 25 Aug 2024 21:27:10 +0200
Subject: [PATCH] lsp: Gracefully ignore invalid diagnostic severity (#11569)

---
 helix-view/src/document.rs | 15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

diff --git a/helix-view/src/document.rs b/helix-view/src/document.rs
index 15aa81daee35..91ec27874853 100644
--- a/helix-view/src/document.rs
+++ b/helix-view/src/document.rs
@@ -1920,12 +1920,15 @@ impl Document {
             return None;
         };
 
-        let severity = diagnostic.severity.map(|severity| match severity {
-            lsp::DiagnosticSeverity::ERROR => Error,
-            lsp::DiagnosticSeverity::WARNING => Warning,
-            lsp::DiagnosticSeverity::INFORMATION => Info,
-            lsp::DiagnosticSeverity::HINT => Hint,
-            severity => unreachable!("unrecognized diagnostic severity: {:?}", severity),
+        let severity = diagnostic.severity.and_then(|severity| match severity {
+            lsp::DiagnosticSeverity::ERROR => Some(Error),
+            lsp::DiagnosticSeverity::WARNING => Some(Warning),
+            lsp::DiagnosticSeverity::INFORMATION => Some(Info),
+            lsp::DiagnosticSeverity::HINT => Some(Hint),
+            severity => {
+                log::error!("unrecognized diagnostic severity: {:?}", severity);
+                None
+            }
         });
 
         if let Some(lang_conf) = language_config {