TeeworldsEconDiscordModerationBot/userset.go at master · jxsl13/TeeworldsEconDiscordModerationBot · GitHub

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package main

import (
	"sync"
)

type userSet struct {
	mu sync.Mutex
	m  map[string]bool
}

func newUserSet() userSet {
	return userSet{m: make(map[string]bool)}
}

func (u *userSet) Users() (users []string) {
	u.mu.Lock()
	defer u.mu.Unlock()

	users = make([]string, 0, len(u.m))

	for user := range u.m {
		users = append(users, user)
	}
	return
}

func (u *userSet) Contains(s string) bool {
	u.mu.Lock()
	defer u.mu.Unlock()
	val, ok := u.m[s]
	if !ok {
		return false
	}

	return val
}

func (u *userSet) Add(s string) {
	u.mu.Lock()
	defer u.mu.Unlock()

	u.m[s] = true
}

func (u *userSet) Remove(s string) {
	u.mu.Lock()
	defer u.mu.Unlock()
	delete(u.m, s)
}

func (u *userSet) Reset() {
	u.mu.Lock()
	defer u.mu.Unlock()

	u.m = make(map[string]bool)
}