| // run |
| |
| // 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. |
| |
| package main |
| |
| type T1 struct { |
| x, y int |
| } |
| type T2 struct { |
| z, w byte |
| } |
| type T3 T1 |
| |
| type MyInt int |
| |
| func (MyInt) m(*T1) {} |
| |
| func main() { |
| { |
| var i interface{} = new(T1) |
| _, ok1 := i.(*T1) |
| _, ok2 := i.(*T2) |
| _, ok3 := i.(*T3) |
| if !ok1 || ok2 || ok3 { |
| println("*T1", ok1, ok2, ok3) |
| panic("fail") |
| } |
| } |
| { |
| var i interface{} = MyInt(0) |
| _, ok1 := i.(interface { |
| m(*T1) |
| }) |
| _, ok2 := i.(interface { |
| m(*T2) |
| }) |
| _, ok3 := i.(interface { |
| m(*T3) |
| }) |
| if !ok1 || ok2 || ok3 { |
| println("T", ok1, ok2, ok3) |
| panic("fail") |
| } |
| } |
| } |