go defer 源码
golang defer 代码
文件路径：/test/defer.go
// 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.
// Test defer.
package main
import "fmt"
var result string
func addInt(i int) { result += fmt.Sprint(i) }
func test1helper() {
for i := 0; i < 10; i++ {
defer addInt(i)
}
}
func test1() {
result = ""
test1helper()
if result != "9876543210" {
fmt.Printf("test1: bad defer result (should be 9876543210): %q\n", result)
panic("defer")
}
}
func addDotDotDot(v ...interface{}) { result += fmt.Sprint(v...) }
func test2helper() {
for i := 0; i < 10; i++ {
defer addDotDotDot(i)
}
}
func test2() {
result = ""
test2helper()
if result != "9876543210" {
fmt.Printf("test2: bad defer result (should be 9876543210): %q\n", result)
panic("defer")
}
}
func main() {
test1()
test2()
}
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