// compile

// Copyright 2020 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.

// Issue 39653.
package p

type E struct{}

type N[T any] struct {
	i int
	n T
}

func F1[T any](i int, n T) N[T] {
	return N[T]{i: i, n: n}
}

func F2() {
	F1(1, F1(2, F1(3, E{})))
}