From 8c378af72117e92bc894fd4a79e978ef0d1c0cc7 Mon Sep 17 00:00:00 2001
From: Josh Mcguigan <joshmcg88@gmail.com>
Date: Tue, 24 Mar 2020 04:40:58 -0700
Subject: missing match arms diagnostic

---
 crates/ra_ide/src/diagnostics.rs | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

(limited to 'crates/ra_ide/src/diagnostics.rs')

diff --git a/crates/ra_ide/src/diagnostics.rs b/crates/ra_ide/src/diagnostics.rs
index c1d7ddaf2..901ad104c 100644
--- a/crates/ra_ide/src/diagnostics.rs
+++ b/crates/ra_ide/src/diagnostics.rs
@@ -101,6 +101,14 @@ pub(crate) fn diagnostics(db: &RootDatabase, file_id: FileId) -> Vec<Diagnostic>
             fix,
         })
     })
+    .on::<hir::diagnostics::MissingMatchArms, _>(|d| {
+        res.borrow_mut().push(Diagnostic {
+            range: d.highlight_range(),
+            message: d.message(),
+            severity: Severity::Error,
+            fix: None,
+        })
+    })
     .on::<hir::diagnostics::MissingOkInTailExpr, _>(|d| {
         let node = d.ast(db);
         let replacement = format!("Ok({})", node.syntax());
@@ -291,7 +299,7 @@ mod tests {
     fn check_no_diagnostic(content: &str) {
         let (analysis, file_id) = single_file(content);
         let diagnostics = analysis.diagnostics(file_id).unwrap();
-        assert_eq!(diagnostics.len(), 0);
+        assert_eq!(diagnostics.len(), 0, "expected no diagnostic, found one");
     }
 
     #[test]
-- 
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