| // run |
| |
| // Copyright 2016 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 |
| |
| var fail bool |
| |
| type Closer interface { |
| Close() |
| } |
| |
| func nilInterfaceDeferCall() { |
| var x Closer |
| defer x.Close() |
| // if it panics when evaluating x.Close, it should not reach here |
| fail = true |
| } |
| |
| func shouldPanic(f func()) { |
| defer func() { |
| if recover() == nil { |
| panic("did not panic") |
| } |
| }() |
| f() |
| } |
| |
| func main() { |
| shouldPanic(nilInterfaceDeferCall) |
| if fail { |
| panic("fail") |
| } |
| } |
