1package main
2
3import (
4	"fmt"
5)
6
7type Config struct {
8	A string
9}
10
11var conf *Config = &Config{}
12
13func SetConfig() func(*Config) {
14	return func(cf *Config) {
15		conf = cf
16	}
17}
18
19func main() {
20	conf := &Config{
21		A: "foo",
22	}
23
24	fmt.Println(conf.A)
25}
26
27// Output:
28// foo
29