From c955ea11b42dc7c0ac91fe1a12427171b86be4b7 Mon Sep 17 00:00:00 2001
From: Jeroen Vannevel <jer_vannevel@outlook.com>
Date: Fri, 14 Jan 2022 00:35:21 +0000
Subject: [PATCH] support TuplePat

---
 .../src/handlers/merge_match_arms.rs          | 20 +++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/crates/ide_assists/src/handlers/merge_match_arms.rs b/crates/ide_assists/src/handlers/merge_match_arms.rs
index 0ef4678d11..ff1804fe95 100644
--- a/crates/ide_assists/src/handlers/merge_match_arms.rs
+++ b/crates/ide_assists/src/handlers/merge_match_arms.rs
@@ -131,6 +131,11 @@ fn get_arm_types(context: &AssistContext, arm: &MatchArm) -> HashMap<String, Opt
                         recurse(&Some(field), map, ctx);
                     }
                 }
+                Some(ast::Pat::TuplePat(tuple)) => {
+                    for field in tuple.fields() {
+                        recurse(&Some(field), map, ctx);
+                    }
+                }
                 Some(ast::Pat::RecordPat(record)) => {
                     if let Some(field_list) = record.record_pat_field_list() {
                         for field in field_list.fields() {
@@ -707,6 +712,21 @@ fn main(msg: Message) {
         Message::ChangeColor(y, Color::Hsv(x, b, c)) => "",
         _ => "other"
     };
+}
+        "#,
+        )
+    }
+
+    #[test]
+    fn merge_match_arms_tuple() {
+        check_assist_not_applicable(
+            merge_match_arms,
+            r#"
+fn func() {
+    match (0, "boo") {
+        (x, y) => $0"",
+        (y, x) => "",
+    };
 }
         "#,
         )