Golang在另一个struct的方法中更改struct的值(Golang changing values of a struct inside a method of another struct)

I have an issue with structs and maybe an issue with pointers, if my guess is correct.

This struct has some fields and a field that holds a slice:

type Bot struct {
    // ...
    connlist []Connection
}

Connection

type Connection struct {
    conn       net.Conn
    messages   int32
    channels   []string
    joins      int32
    connactive bool
}

connactivetrue

Bot

func (bot *Bot) ListenToConnection(connection Connection) {
    reader := bufio.NewReader(connection.conn)
    tp := textproto.NewReader(reader)
    for {
        line, err := tp.ReadLine()
        if err != nil {
            log.Printf("Error reading from chat connection: %s", err)
            break // break loop on errors
        }
        if strings.Contains(line, "tmi.twitch.tv 001") {
            connection.activateConn()
        }
        if strings.Contains(line, "PING ") {
            fmt.Fprintf(connection.conn, "PONG tmi.twitch.tv\r\n")
        }
        fmt.Fprintf(bot.inconn, line+"\r\n")
    }
}

connection.activeConn()

func (connection *Connection) activateConn() {
    connection.connactive = true
}

This actually gets executed so it's not an issue of the connection not getting a response or something.

Botconnactivefalse

for i := 0; i < len(bot.connlist); i++ {
        log.Println(bot.connlist[i].connactive)
}

connactive = true

Any ideas? Thanks for the help.