1// errorcheck
2
3// Copyright 2009 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 main
8
9type I interface {
10	m(map[I] bool);	// ok
11}
12
13type S struct {
14	m map[S] bool;	// ERROR "map key type"
15}
16