From 0dca7acf0fb65545f0c46f0c604bb15400aa6d91 Mon Sep 17 00:00:00 2001
From: Jonas Schievink <jonas.schievink@ferrous-systems.com>
Date: Thu, 17 Sep 2020 14:48:17 +0200
Subject: Don't diagnose imports whose base crate is missing

---
 crates/hir_def/src/nameres/tests/diagnostics.rs | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

(limited to 'crates/hir_def/src/nameres/tests')

diff --git a/crates/hir_def/src/nameres/tests/diagnostics.rs b/crates/hir_def/src/nameres/tests/diagnostics.rs
index cd0eb1a4b..576b813d2 100644
--- a/crates/hir_def/src/nameres/tests/diagnostics.rs
+++ b/crates/hir_def/src/nameres/tests/diagnostics.rs
@@ -92,6 +92,30 @@ fn unresolved_extern_crate() {
     );
 }
 
+#[test]
+fn dedup_unresolved_import_from_unresolved_crate() {
+    check_diagnostics(
+        r"
+        //- /main.rs crate:main
+        mod a {
+            extern crate doesnotexist;
+          //^^^^^^^^^^^^^^^^^^^^^^^^^^ unresolved extern crate
+
+            // Should not error, since we already errored for the missing crate.
+            use doesnotexist::{self, bla, *};
+
+            use crate::doesnotexist;
+              //^^^^^^^^^^^^^^^^^^^ unresolved import
+        }
+
+        mod m {
+            use super::doesnotexist;
+              //^^^^^^^^^^^^^^^^^^^ unresolved import
+        }
+        ",
+    );
+}
+
 #[test]
 fn unresolved_module() {
     check_diagnostics(
-- 
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