Is it possible to fix and make the
*validSub.Init*([]string{"aa", "bb", "cc"})
works instead?
Coming from the OO world, this is a form that I feel more comfort with.
Thx.
---------- Forwarded message ----------
From: andrey mirtchovski <mirtchov...@gmail.com>
Date: Thu, Jun 23, 2016 at 6:16 PM
Subject: Re: [go-nuts] How to init a global map
To: Tong Sun <suntong...@gmail.com>
if you just want to fix it:
https://play.golang.org/p/cL0svI8FU4
On Thu, Jun 23, 2016 at 4:12 PM, Tong Sun <suntong...@gmail.com> wrote:
> My mind is not working and I can't find how to fix the following program
> (https://play.golang.org/p/oXxUndUSye):
>
>
> package main
>
>
> import (
> "fmt"
> )
>
>
> type set map[string]struct{}
>
>
> var validSub set
>
>
> func init() {
> validSub.Init([]string{"aa", "bb", "cc"})
> fmt.Printf("%+v\n", validSub)
> }
>
>
> func (s set) Init(slice []string) {
> s = make(map[string]struct{}, len(slice))
> for _, s1 := range slice {
> s[s1] = struct{}{}
> }
> }
>
>
> func (s set) Has(a string) bool { _, ok := s[a]; return ok }
>
>
> func main() {
> fmt.Println(validSub.Has("aa"))
> fmt.Println(validSub.Has("dd"))
> }
>
>
>
> Please help.
>
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