|  | // 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 | 
|  |  | 
|  | import "fmt" | 
|  |  | 
|  | func f1() (x int) { | 
|  | for { | 
|  | defer func() { | 
|  | recover() | 
|  | x = 1 | 
|  | }() | 
|  | panic(nil) | 
|  | } | 
|  | } | 
|  |  | 
|  | var sink *int | 
|  |  | 
|  | func f2() (x int) { | 
|  | sink = &x | 
|  | defer func() { | 
|  | recover() | 
|  | x = 1 | 
|  | }() | 
|  | panic(nil) | 
|  | } | 
|  |  | 
|  | func f3(b bool) (x int) { | 
|  | sink = &x | 
|  | defer func() { | 
|  | recover() | 
|  | x = 1 | 
|  | }() | 
|  | if b { | 
|  | panic(nil) | 
|  | } | 
|  | return | 
|  | } | 
|  |  | 
|  | func main() { | 
|  | if x := f1(); x != 1 { | 
|  | panic(fmt.Sprintf("f1 returned %d, wanted 1", x)) | 
|  | } | 
|  | if x := f2(); x != 1 { | 
|  | panic(fmt.Sprintf("f2 returned %d, wanted 1", x)) | 
|  | } | 
|  | if x := f3(true); x != 1 { | 
|  | panic(fmt.Sprintf("f3(true) returned %d, wanted 1", x)) | 
|  | } | 
|  | if x := f3(false); x != 1 { | 
|  | panic(fmt.Sprintf("f3(false) returned %d, wanted 1", x)) | 
|  | } | 
|  | } |