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 7 package main 8 9 type I interface { 10 m(map[I] bool); // ok 11 } 12 13 type S struct { 14 m map[S] bool; // ERROR "map key type" 15 } 16