1// errorcheck 2 3// Copyright 2021 The Go Authors. All rights reserved. 4// Use of this source code is governed by a BSD-style 5// license that can be found in the LICENSE file. 6 7package p 8 9type T interface{ M() } 10 11func F() T 12 13var _ = F().(*X) // ERROR "impossible type assertion:( F\(\).\(\*X\))?\n\t\*X does not implement T \(missing method M\)" 14 15type X struct{} 16