From 1f028403cdbb35cf1dc23350819e6f4e1ebd057e Mon Sep 17 00:00:00 2001
From: Lukas Wirth <lukastw97@gmail.com>
Date: Mon, 20 Jun 2022 18:02:13 +0200
Subject: [PATCH] fix: Don't trigger pattern completions when typing a wildcard
 pattern

---
 crates/ide-completion/src/completions.rs   |  6 +++++-
 crates/ide-completion/src/tests/pattern.rs | 12 ++++++++++++
 2 files changed, 17 insertions(+), 1 deletion(-)

diff --git a/crates/ide-completion/src/completions.rs b/crates/ide-completion/src/completions.rs
index a0725198f73..4f522ee7613 100644
--- a/crates/ide-completion/src/completions.rs
+++ b/crates/ide-completion/src/completions.rs
@@ -489,7 +489,11 @@ pub(super) fn complete_name(
         NameKind::Function => {
             item_list::trait_impl::complete_trait_impl_fn(acc, ctx, name);
         }
-        NameKind::IdentPat(pattern_ctx) => complete_patterns(acc, ctx, pattern_ctx),
+        NameKind::IdentPat(pattern_ctx) => {
+            if ctx.token.kind() != syntax::T![_] {
+                complete_patterns(acc, ctx, pattern_ctx)
+            }
+        }
         NameKind::Module(mod_under_caret) => {
             mod_::complete_mod(acc, ctx, mod_under_caret);
         }
diff --git a/crates/ide-completion/src/tests/pattern.rs b/crates/ide-completion/src/tests/pattern.rs
index d21f62f4adb..da9e5e20288 100644
--- a/crates/ide-completion/src/tests/pattern.rs
+++ b/crates/ide-completion/src/tests/pattern.rs
@@ -13,6 +13,18 @@ fn check(ra_fixture: &str, expect: Expect) {
     expect.assert_eq(&actual)
 }
 
+#[test]
+fn wildcard() {
+    check(
+        r#"
+fn quux() {
+    let _$0
+}
+"#,
+        expect![""],
+    );
+}
+
 #[test]
 fn ident_rebind_pat() {
     check_empty(