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 R interface { duplicate() } 10 type S interface { duplicate() } 11 type T interface { R; S } // ERROR "duplicate" 12 13 func main() { 14 } 15
