go source for verification 2026-05-22

test/typeparam/issue48602.go

@@ -0,0 +1,25 @@
+// run
+
+// 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 main
+
+type Iterator[T any] interface {
+	Iterate(fn T)
+}
+
+type IteratorFunc[T any] func(fn T)
+
+func (f IteratorFunc[T]) Iterate(fn T) {
+	f(fn)
+}
+
+func Foo[R any]() {
+	var _ Iterator[R] = IteratorFunc[R](nil)
+}
+
+func main() {
+	Foo[int]()
+}