1// errorcheck
2
3// Copyright 2011 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
7// Issue 1606.
8
9package main
10
11func main() {
12	var x interface{}
13	switch t := x.(type) {
14	case 0:		// ERROR "type"
15		t.x = 1
16		x.x = 1 // ERROR "type interface \{\}|reference to undefined field or method|interface with no methods|undefined"
17	}
18}
19