1 files changed, 32 insertions, 0 deletions
diff --git a/test/typeparam/mdempsky/19.go b/test/typeparam/mdempsky/19.go
new file mode 100644
index 0000000..53d979a
--- /dev/null
+++ b/test/typeparam/mdempsky/19.go
@@ -0,0 +1,32 @@
+// run
+
+// Copyright 2022 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.
+
+// Test that type parameter methods are handled correctly, even when
+// the instantiating type argument has additional methods.
+
+package main
+
+func main() {
+	F(X(0))
+}
+
+type I interface{ B() }
+
+func F[T I](t T) {
+	CallMethod(t)
+	MethodExpr[T]()(t)
+	MethodVal(t)()
+}
+
+func CallMethod[T I](t T)       { t.B() }
+func MethodExpr[T I]() func(T)  { return T.B }
+func MethodVal[T I](t T) func() { return t.B }
+
+type X int
+
+func (X) A() { panic("FAIL") }
+func (X) B() {}
+func (X) C() { panic("FAIL") }