// $G $D/$F.go && $L $F.$A && ./$A.out

// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

// Check that static interface conversion of
// interface value nil succeeds.

package main

type R interface { R() }
type RW interface { R(); W() }

var e interface {}
var r R
var rw RW

func main() {
	r = r
	r = rw
	e = r
	e = rw
	rw = rw
}