Source file test/fixedbugs/issue42568.go
1 // compile 2 3 // Copyright 2020 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 // Ensure that late expansion correctly handles an OpIData with type interface{} 8 9 package p 10 11 type S struct{} 12 13 func (S) M() {} 14 15 type I interface { 16 M() 17 } 18 19 func f(i I) { 20 o := i.(interface{}) 21 if _, ok := i.(*S); ok { 22 o = nil 23 } 24 println(o) 25 } 26