klundberg

041f94dcd6f7e66679da2ead9c76e5aaa24f0d17ec559ab354806133340f877095226f2d4bc36a07c4cf1f1e9269bb3bb55970234a0af292c869446ce0f6e8e886;nsirlconnection

klundberg

extension Optional: Collection where Wrapped: Collection {
    public typealias Element = Wrapped.Element
    public typealias Index = Wrapped.Index

    public func index(after i: Wrapped.Index) -> Wrapped.Index {
        switch self {
        case let value?:
            return value.index(after: i)
        case nil:
            fatalError() // TODO: ???

klundberg

public struct OptionalIndex<InnerIndex: Comparable> {
    let inner: InnerIndex?

    init(_ base: InnerIndex) {
        inner = base
    }

    init() {
        inner = nil
    }

klundberg

  // Available variables:
  // - Machine
  // - interpret
  // - assign
  // - send
  // - sendParent
  // - spawn
  // - raise
  // - actions

klundberg

extension Binding {
  /// like Binding.constant but lets you update the value and stores that updated value via a captured enclosing reference.
  public static func initially(_ value: Value) -> Binding<Value> {
    let box = Box(value)
    return .init(
      get: { box.value },
      set: { box.value = $0 }
    )
  }