Merge #8137

8137: Fix box pattern inference panic r=flodiebold a=Veykril

Fixes #6560

Co-authored-by: Lukas Wirth <[email protected]>

1 files changed, 22 insertions, 0 deletions

diff --git a/crates/hir_ty/src/tests/patterns.rs b/crates/hir_ty/src/tests/patterns.rs
index 5da19ba5f..85a28e76b 100644
--- a/crates/hir_ty/src/tests/patterns.rs
+++ b/crates/hir_ty/src/tests/patterns.rs
@@ -658,6 +658,28 @@ fn slice_tail_pattern() {
 fn box_pattern() {
     check_infer(
         r#"
+        pub struct Global;
+        #[lang = "owned_box"]
+        pub struct Box<T, A = Global>(T);
+
+        fn foo(params: Box<i32>) {
+            match params {
+                box integer => {}
+            }
+        }
+        "#,
+        expect![[r#"
+            83..89 'params': Box<i32, Global>
+            101..155 '{     ...   } }': ()
+            107..153 'match ...     }': ()
+            113..119 'params': Box<i32, Global>
+            130..141 'box integer': Box<i32, Global>
+            134..141 'integer': i32
+            145..147 '{}': ()
+        "#]],
+    );
+    check_infer(
+        r#"
         #[lang = "owned_box"]
         pub struct Box<T>(T);