ryotapoi

import Foundation
import zlib

struct CRC32: Equatable, ExpressibleByIntegerLiteral, CustomStringConvertible {
    typealias IntegerLiteralType = UInt32
    
    let value: UInt32
    var description: String { String(format: "%08X", value) }

    init(data: Data) {

ryotapoi

import Foundation
import Combine

extension Combine.Publishers {
    struct Sequencial<Sequence, Output, Failure>: Publisher
    where
        Sequence: Swift.Sequence,
        Sequence.Element: Publisher,
        Sequence.Element.Output == Output,
        Sequence.Element.Failure == Failure

ryotapoi

import Foundation
import Combine

extension FileManager {
    struct RemoveItemPublisher: Publisher {
        typealias Output = Void
        typealias Failure = Error
        
        var url: URL
        var fileManager: FileManager

ryotapoi

import Foundation

let formatter = DateComponentsFormatter()
formatter.unitsStyle = .positional
formatter.allowedUnits = [.minute, .second]
formatter.zeroFormattingBehavior = .pad

formatter.string(from: 61)

ryotapoi

zip -0 -r archive.zip source…

ryotapoi

#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wunused-value"
c.view; 
#pragma clang diagnostic pop

ryotapoi

import Foundation

// URLQueryValue

public enum URLQueryValueCompatibleError: Error {
    case none // nil
    case empty // isEmpty
    case format // 期待した書式ではない
}

ryotapoi

import UIKit
import Combine

// MARK: - UserDefaults

public protocol UserDefaultsProtocol: NSObject {
    func value<Value: UserDefaultCompatible>(type: Value.Type, forKey key: String, default defaultValue: Value) -> Value
    func setValue<Value: UserDefaultCompatible>(_ value: Value, forKey key: String)
}

ryotapoi

import UIKit
import Combine

// これだけでは使いにくい。
// * 色々な型への対応
// * Property WrapperのprojectedValueとしてCurrentValueSubjectを返す
// とすれば使いやすくなるはず。

class Box {
    var cancelable: AnyCancellable?

ryotapoi

import Combine

class MySubject<Output, Failure : Error> : Combine.Subject {
    var value: Output {
        didSet {
            // 完了していなければ値を通知する
            guard completion == nil else { return }
            subscriptions.forEach { $0.receive(value) }
        }
    }