wtetsu/gaze

/**
 * Gaze (https://github.com/wtetsu/gaze/)
 * Copyright 2020-present wtetsu
 * Licensed under MIT
 */

package uniq

// Uniq can deal with unique list.
type Uniq struct {
    list []string
    keys map[string]struct{}
}

// New returns a new Uniq.
func New() *Uniq {
    return &Uniq{
        list: []string{},
        keys: map[string]struct{}{},
    }
}

// Add adds a new entry.
func (u *Uniq) Add(newEntry string) {
    _, ok := u.keys[newEntry]
    if ok {
        return
    }
    u.keys[newEntry] = struct{}{}
    u.list = (append(u.list, newEntry))
}

// AddAll adds multiple new entries.
func (u *Uniq) AddAll(newEntries []string) {
    for _, e := range newEntries {
        u.Add(e)
    }
}

// List returns a internal unique list.
func (u *Uniq) List() []string {
    return u.list
}

// Len returns the length
func (u *Uniq) Len() int {
    return len(u.list)
}