From e63315b8f189396cf556f21d4ca27ae4281d17d7 Mon Sep 17 00:00:00 2001
From: Josh Mcguigan <joshmcg88@gmail.com>
Date: Wed, 8 Apr 2020 20:23:51 -0700
Subject: add record pat missing field diagnostic

---
 crates/ra_hir_ty/src/diagnostics.rs | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

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

diff --git a/crates/ra_hir_ty/src/diagnostics.rs b/crates/ra_hir_ty/src/diagnostics.rs
index 8cbce1168..3f18acf1d 100644
--- a/crates/ra_hir_ty/src/diagnostics.rs
+++ b/crates/ra_hir_ty/src/diagnostics.rs
@@ -62,6 +62,29 @@ impl AstDiagnostic for MissingFields {
     }
 }
 
+#[derive(Debug)]
+pub struct MissingPatFields {
+    pub file: HirFileId,
+    pub field_list: AstPtr<ast::RecordFieldPatList>,
+    pub missed_fields: Vec<Name>,
+}
+
+impl Diagnostic for MissingPatFields {
+    fn message(&self) -> String {
+        let mut buf = String::from("Missing structure fields:\n");
+        for field in &self.missed_fields {
+            format_to!(buf, "- {}", field);
+        }
+        buf
+    }
+    fn source(&self) -> InFile<SyntaxNodePtr> {
+        InFile { file_id: self.file, value: self.field_list.into() }
+    }
+    fn as_any(&self) -> &(dyn Any + Send + 'static) {
+        self
+    }
+}
+
 #[derive(Debug)]
 pub struct MissingMatchArms {
     pub file: HirFileId,
-- 
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