| // 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 Recv <-chan int | |
| type sliceOf[E any] interface { | |
| type []E | |
| } | |
| func Append[S sliceOf[T], T any](s S, t ...T) S { | |
| return append(s, t...) | |
| } | |
| func main() { | |
| a := Append([]Recv{nil}, Recv(nil)) | |
| if len(a) != 2 || a[0] != nil || a[1] != nil { | |
| panic(a) | |
| } | |
| } |