Skip to content

Instantly share code, notes, and snippets.

View sidepelican's full-sized avatar

Iceman sidepelican

30 followers · 0 following
View GitHub Profile
@sidepelican
sidepelican / Iconv.swift
Created May 2, 2020 14:13
uses libiconv.2.tbd, swift5.2
import Darwin.POSIX.iconv
class Iconv {
enum Error: Swift.Error {
case illegalByteSequence
case invalidArgument
case invalidResult
case unknownError(errno: Int32)
}
@sidepelican
sidepelican / ObservableType+Paging.swift
Last active June 1, 2020 17:37
extension ObservableType where Element == Void {
func pagenation<
Token,
Source: ObservableConvertibleType,
PagingElement
>(
startWith token: Token,
selector: @escaping (Token) throws -> Source
) -> Observable<(usedToken: Token, PagingElement)>
where
@sidepelican
sidepelican / dynamicSelf.swift
Created July 14, 2020 07:12
class A {
class var className: String { "A" }
init() {}
func setup() {
name = {
return Self.className
}
}
var name: (() -> String)?
}
@sidepelican
sidepelican / CollectionViewConcatDataSource.swift
Created July 17, 2020 13:00
import DiffableDataSources
import UIKit
class CollectionViewConcatDataSource<SectionIdentifierType: Hashable>: NSObject, UICollectionViewDataSource {
typealias ItemIdentifierType = AnyHashable
public typealias SupplementaryViewProvider = (UICollectionView, String, IndexPath) -> UICollectionReusableView?
private var innerDataSource: CollectionViewDiffableDataSource<SectionIdentifierType, AnyHashable>!
private var adapterMap: [SectionIdentifierType: DiffableDataSourceSectionAdapterType] = [:]
var defaultSupplementaryViewProvider: SupplementaryViewProvider? = nil
@sidepelican
sidepelican / CodablePerformance.swift
Created October 9, 2020 16:03
import Foundation
public struct Airport: Codable {
let name: String
let iata: String
let icao: String
let coordinates: [Double]
public struct Runway: Codable {
enum Surface: String, Codable {
@sidepelican
sidepelican / sheet2.csv
Last active March 25, 2021 02:58
BackgroundTasks調査
サーバ日付 id value
2021/03/24 11:03:04 testing4 0
2021/03/24 11:03:04 testing1 0
2021/03/24 11:04:07 testing4 1
2021/03/24 11:04:07 testing1 1
2021/03/24 11:04:08 testing2 1
2021/03/24 11:05:11 testing1 2 私物iPadでスケジュール中。電源に接続されたりされてなかったり、他のアプリを起動してたりしてなかったりする
2021/03/24 11:05:11 testing4 2
2021/03/24 11:05:12 testing2 2
2021/03/24 11:05:13 testing3 2 〜ここでバックグラウンドにした〜
@sidepelican
sidepelican / flatMapBuild.swift
Last active April 14, 2021 09:36
import Combine
@_functionBuilder
struct FlatMapBuilder {
static func buildBlock<C: Publisher>(_ component: C) -> C
{
component
}
static func buildEither<F: Publisher, S: Publisher>(first component: F) -> EitherPublisher<F, S>
@sidepelican
sidepelican / LinuxAsyncSupport.swift
Created November 20, 2021 11:36
#if !canImport(ObjectiveC)
import Foundation
import XCTest
// INFO:
//typealias XCTestCaseClosure = (XCTestCase) throws -> Void
//typealias XCTestCaseEntry = (testCaseClass: XCTestCase.Type, allTests: [(String, XCTestCaseClosure)])
func testCase<T: XCTestCase>(_ allTests: [(String, (T) -> () async throws -> Void)]) -> XCTestCaseEntry {
let tests: [(String, XCTestCaseClosure)] = allTests.map { ($0.0, asyncTest($0.1)) }
return (T.self, tests)
@sidepelican
sidepelican / ContentView.swift
Created January 13, 2022 09:12
.task{}のバックポート検討
import SwiftUI
func longlongAsyncFunction() async {
let id = UUID()
print("\(id): start")
do {
try await withTaskCancellationHandler {
try await Task.sleep(nanoseconds: 1000 * 1000 * 1000 * 10)
print("\(id): end")
} onCancel: {
@sidepelican
sidepelican / app_preview.md
Last active February 1, 2022 14:07

動画の長さに合わせて無音ファイルをカット

$ ffmpeg -ss 0 -i mute30.wav -t 16.45 mute.wav

無音ファイルと動画を結合

$ ffmpeg -i in.mp4 -i mute.wav -vf scale=886:1920,setsar=1:1 out.mp4