ha1f

import Foundation

struct YearMonthDay {
    var year: Int
    var month: Int
    var day: Int
    
    /// Extracts yearMonthDay from Date, using calendar.
    static func from(_ date: Date, calendar: Calendar = Calendar(identifier: .gregorian)) -> YearMonthDay {
        let components = calendar.dateComponents([.year, .month, .day], from: date)

ha1f

//
//  WithPrevious.swift
//
//  Created by ha1f on 2018/06/25.
//  Copyright © 2018年 ha1f. All rights reserved.
//

import Foundation
import RxCocoa
import RxSwift

ha1f

//
//  CircleView.swift
//
//  Created by ha1f on 2019/02/27.
//  Copyright © 2019年 ha1f. All rights reserved.
//

import UIKit

/// I guess this is faster than using cornerRadius.

ha1f

//
//  KeyboardSizeObserver.swift
//  KeyboardFrameObserver
//
//  Created by ha1f on 2019/02/08.
//  Copyright © ha1f 2019年 ha1f. All rights reserved.
//

import UIKit

ha1f

//
//  UserDefaultsStoreItem.swift
//
//  Created by ha1f on 2019/02/26.
//  Copyright © 2019年 ha1f. All rights reserved.
//

import Foundation

struct UserDefaultsStoreItem<T> {

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final class DeallocNotifier {
    private var _observers: [() -> Void] = []

    func observe(_ observer: @escaping () -> Void) {
        _observers.append(observer)
    }

    deinit {
        _observers.forEach { observer in
            observer()

ha1f

import Foundation

final class ThreadSafeCollection<T> {
    private let _lock = NSRecursiveLock()
    private var _observers: [Int: T] = [:]
    private var _nextKey = 0

    func insert(_ observer: T) -> Int {
        _lock.lock()
        defer {

ha1f

protocol Drinkable {
}

struct 🍶: Drinkable {}
struct 🍺: Drinkable {}
struct 🍸: Drinkable {}

struct Person {
}

ha1f

//
//  PhotoLibraryChangeObserver.swift
//  ha1fAlbum
//
//  Created by はるふ on 2018/10/29.
//  Copyright © 2018年 はるふ. All rights reserved.
//

import Photos
import RxSwift

ha1f

class OperationGroup<T1, T2> {
    private var item1: T1?
    private var item2: T2?
    private var observers: [(T1, T2) -> Void] = []
    
    func notify1(_ item: T1) {
        item1 = item
        _notifyIfNeeded()
    }