swiftyfinch

extension Set {
    /// Inserts other collection to current. It works like the `insert` method, but not like the `union`.
    func inserts<S: Sequence>(_ other: S) -> Self where S.Element == Element {
        var new = self
        other.forEach { new.insert($0) }
        return new
    }
}

swiftyfinch

protocol OptionalType {
    associatedtype Wrapped
    var optional: Wrapped? { get }
}

extension Optional: OptionalType {
    var optional: Self { self }
}

extension Optional {

swiftyfinch

final class Storage {
    init() { print(“Storage init.”) }
}
final class Example {
    @LazyOnce var storage = Storage()
}
let example = Example() // Output:
example.storage         // Output: Storage init.

swiftyfinch

@propertyWrapper final class LazyOnce<T> {
    var wrappedValue: T {
        if let existStorage = storage { return existStorage }
        let newStorage = lazyBlock()
        self.storage = newStorage
        return newStorage
    }
    private var storage: T?
    private let lazyBlock: () -> T
    init(wrappedValue: @escaping @autoclosure () -> T) {

swiftyfinch

@propertyWrapper
final class LazyOnce<T> {
    private var storage: T?
    private let lazyBlock: () -> T

    var wrappedValue: T {
        if let existStorage = storage { return existStorage }
        let newStorage = lazyBlock()
        self.storage = newStorage
        return newStorage

swiftyfinch

#!/usr/bin/ruby

require 'set'

# Constants
OUTPUT_BULLET = "•"
OUTPUT_BULLET_COLORS = [9, 3, 2, 75, 99]

# Help information
HELP_COMMANDS = ["-h", "--help", "help"]

swiftyfinch

#-------------------------------------------------------------------------------
# CocoaPods
#-------------------------------------------------------------------------------
function pods_install() {
    red="\001$(tput setaf 1)\002"
    yellow="\001$(tput setaf 3)\002"
    green="\001$(tput setaf 2)\002"
    reset="\001$(tput sgr0)\002"

    if [ "$1" = "-f" ] ; then

swiftyfinch

struct WithoutEscapingSlashesEncoder {

    private enum EncoderError: InternalError {
        case dataToUTF8
        case utf8ToData
    }

    func encode<T: Encodable>(_ object: T) throws -> Data {
        let jsonEncoder = JSONEncoder()
        if #available(iOS 13, *) {