1 files changed, 16 insertions, 0 deletions
diff --git a/test/typeparam/issue48454.dir/a.go b/test/typeparam/issue48454.dir/a.go
new file mode 100644
index 0000000..9613916
--- /dev/null
+++ b/test/typeparam/issue48454.dir/a.go
@@ -0,0 +1,16 @@
+// Copyright 2021 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package a
+
+import "sync"
+
+type Val[T any] struct {
+	mu  sync.RWMutex
+	val T
+}
+
+func (v *Val[T]) Has() {
+	v.mu.RLock()
+}