// run

// 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.

package main

type T[A any] struct {
	V A
}

type S1 struct {
	T[int]
	V string
}

type Tint = T[int]
type Tbool = T[bool]

type S2 struct {
	Tint
	Tbool
	V string
}

type S3 struct {
	*T[int]
}

func main() {
	var s1 S1
	if s1.T.V != 0 {
		panic(s1)
	}
	var s2 S2
	if s2.Tint.V != 0 || s2.Tbool.V {
		panic(s2)
	}
	var s3 S3
	if s3.T != nil {
		panic(s3)
	}
}