// 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 p

type SliceConstraint[T any] interface {
	[]T
}

func Map[S SliceConstraint[E], E any](s S, f func(E) E) S {
	return s
}

type MySlice []int

func f(s MySlice) {
	Map[MySlice /* ERROR MySlice does not implement SliceConstraint\[int\] */, int](s, nil)
}