tarunon’s gists

tarunon / checkasync.swift

Created May 24, 2024 12:38

	import Foundation

	// MARK: without cancel implementation
	print("check without cancel implementation")

	do {
	print("#1 function")

	func function() async -> Int {
	return await withTaskCancellationHandler {

tarunon / notes.md

Created January 11, 2022 09:59

Carthage経由でXCFrameworkを生成し、SPM未対応のライブラリを利用する

    carthage bootstrap --no-use-binaries --use-xcframeworks --use-submodules --platform iOS
mkdir Release
cd Carthage/Build
zip -r -X ../../Release/XXX.xcframework.zip XXX.xcframework
shasum -a 256 "XXX.xcframework.zip" >> checksum

cat checksum

  

tarunon / TaskContext.swift

Last active September 25, 2021 09:30

Swift Task Extension for slim AsyncSequence access.

	import UIKit

	class Base: UIViewController {
	func mySomeAsyncSequence() -> AsyncStream<String> {
	fatalError()
	}

	func use(_ value: String) {
	print(value)
	}

tarunon / Expressive.swift

Last active April 6, 2021 15:21

Introducing `if statement` `for statement` into swift. Required swift 5.4.

	public enum Either<L, R> {
	case left(L)
	case right(R)
	}

	@resultBuilder
	public struct Expressive<T> {
	public static func buildBlock<C>() -> C? { nil }
	public static func buildBlock<C>(_ component: C) -> C { component }
	public static func buildEither(first component: T) -> T { component }

tarunon / DelegateForwarder.swift

Created January 28, 2021 07:38

	import Foundation

	private class Weakbox {
	weak var object: NSObjectProtocol?
	init(_ object: NSObjectProtocol) {
	self.object = object
	}
	}

	class DelegateForwarder: NSObject {

tarunon / >>=.swift

Last active August 26, 2020 10:04

>>=.swift

	// tryがResult.flatMapのdo記法であることの確認。
	// 逆になるが、Result.flatMapから考えていったほうが理解しやすいのでその順番で。

	func foo() -> Result<Int, Error> {
	.success(1)
	}

	func bar(_ arg: Int) -> Result<Int, Error> {
	.success(arg + 1)
	}

tarunon / fbsample.swift

Created July 22, 2020 05:57

Traits flatMap with FB

	struct Single<T> {}
	struct Maybe<T> {}

	protocol MaybeCov {
	associatedtype T
	func asMaybe() -> Maybe<T>
	}

	extension Single: MaybeCov {
	func asMaybe() -> Maybe<T> { fatalError() }

tarunon / MaybeEquatable.swift

Last active January 7, 2020 04:59

	public typealias PartialApplySelfToIsEqual = (Any?) -> Bool
	public protocol MaybeEquatable {
	func partialApplySelftoIsEqual() -> PartialApplySelfToIsEqual
	}

	extension MaybeEquatable {
	public func partialApplySelftoIsEqual() -> PartialApplySelfToIsEqual {
	{ _ in false }
	}
	}

tarunon / SwiftFunction.swift

Last active August 17, 2019 05:17

	private struct SwiftFuncWrapper {
	var trampolinePtr: UnsafeMutablePointer<UInt64>
	var functionObject: UnsafeMutablePointer<SwiftFuncObject>

	var functionPtr: UnsafeMutableRawPointer {
	let pointer = UnsafeMutablePointer<UInt64>(bitPattern: UInt(functionObject.pointee.address))!
	// Getting actual function ptr from instruction.
	// 0: 55 push rbp
	// 1: 48 89 e5 mov rbp,rsp
	// 4: 5d pop rbp

tarunon / Image.swift

Created October 4, 2018 06:48

How to solve Bundle things in microframeworks


	public struct BundleReference<T: NSObjectProtocol> {
	static var _bundle: Bundle {
	return Bundle(for: T.self)
	}
	}

	public protocol BundleReferencable {
	associatedtype Referenced: NSObjectProtocol
	static var bundle: BundleReference<Referenced>.Type { get }

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