| // 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 p | |
| func _() { | |
| var x interface{} | |
| switch t := x.(type) { | |
| case S /* ERROR cannot use generic type */ : | |
| t.m() | |
| } | |
| } | |
| type S[T any] struct {} | |
| func (_ S[T]) m() |