Russ Cox | 0b477ef | 2012-02-16 23:48:57 -0500 | [diff] [blame] | 1 | // run |
Rob Pike | c847647 | 2009-01-27 15:08:08 -0800 | [diff] [blame] | 2 | |
| 3 | // Copyright 2009 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 | |
Rob Pike | 83976e3 | 2012-02-19 14:28:53 +1100 | [diff] [blame] | 7 | // Test defer. |
| 8 | |
Rob Pike | c847647 | 2009-01-27 15:08:08 -0800 | [diff] [blame] | 9 | package main |
| 10 | |
| 11 | import "fmt" |
| 12 | |
| 13 | var result string |
| 14 | |
Rob Pike | d2fc5d6 | 2010-02-02 10:53:37 +1100 | [diff] [blame] | 15 | func addInt(i int) { result += fmt.Sprint(i) } |
Rob Pike | c847647 | 2009-01-27 15:08:08 -0800 | [diff] [blame] | 16 | |
| 17 | func test1helper() { |
| 18 | for i := 0; i < 10; i++ { |
| 19 | defer addInt(i) |
| 20 | } |
| 21 | } |
| 22 | |
| 23 | func test1() { |
Rob Pike | d2fc5d6 | 2010-02-02 10:53:37 +1100 | [diff] [blame] | 24 | result = "" |
| 25 | test1helper() |
Rob Pike | c847647 | 2009-01-27 15:08:08 -0800 | [diff] [blame] | 26 | if result != "9876543210" { |
Rob Pike | d2fc5d6 | 2010-02-02 10:53:37 +1100 | [diff] [blame] | 27 | fmt.Printf("test1: bad defer result (should be 9876543210): %q\n", result) |
Alan Donovan | 052c942 | 2013-02-12 13:17:49 -0500 | [diff] [blame] | 28 | panic("defer") |
Rob Pike | c847647 | 2009-01-27 15:08:08 -0800 | [diff] [blame] | 29 | } |
| 30 | } |
| 31 | |
Russ Cox | 2ee420f | 2010-09-24 11:55:48 -0400 | [diff] [blame] | 32 | func addDotDotDot(v ...interface{}) { result += fmt.Sprint(v...) } |
Rob Pike | c847647 | 2009-01-27 15:08:08 -0800 | [diff] [blame] | 33 | |
| 34 | func test2helper() { |
| 35 | for i := 0; i < 10; i++ { |
| 36 | defer addDotDotDot(i) |
| 37 | } |
| 38 | } |
| 39 | |
| 40 | func test2() { |
Rob Pike | d2fc5d6 | 2010-02-02 10:53:37 +1100 | [diff] [blame] | 41 | result = "" |
| 42 | test2helper() |
Rob Pike | c847647 | 2009-01-27 15:08:08 -0800 | [diff] [blame] | 43 | if result != "9876543210" { |
Rob Pike | d2fc5d6 | 2010-02-02 10:53:37 +1100 | [diff] [blame] | 44 | fmt.Printf("test2: bad defer result (should be 9876543210): %q\n", result) |
Alan Donovan | 052c942 | 2013-02-12 13:17:49 -0500 | [diff] [blame] | 45 | panic("defer") |
Rob Pike | c847647 | 2009-01-27 15:08:08 -0800 | [diff] [blame] | 46 | } |
| 47 | } |
| 48 | |
| 49 | func main() { |
Rob Pike | d2fc5d6 | 2010-02-02 10:53:37 +1100 | [diff] [blame] | 50 | test1() |
| 51 | test2() |
Rob Pike | c847647 | 2009-01-27 15:08:08 -0800 | [diff] [blame] | 52 | } |