// errorcheck // 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 T interface{ M() } func F() T var _ = F().(*X) // ERROR "impossible type assertion:( F\(\).\(\*X\))?\n\t\*X does not implement T \(missing method M\)" type X struct{}