// run // Copyright 2022 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 func main() { f[int]() } func f[T any]() { switch []T(nil) { case nil: default: panic("FAIL") } switch (func() T)(nil) { case nil: default: panic("FAIL") } switch (map[int]T)(nil) { case nil: default: panic("FAIL") } }