swhitty

import Foundation

public struct WeakSet<Element>: Sequence, ExpressibleByArrayLiteral, CustomStringConvertible where Element: AnyObject {

  private var storage = Set<Box>()

  public init(_ members: [Element]) {
    members.forEach { insert($0) }
  }

swhitty

extension CGPath {
    func apply(action: @escaping (CGPathElement)->()) {
        var action = action
        apply(info: &action) {
            let action = $0!.bindMemory(to: ((CGPathElement)->()).self, capacity: 1).pointee
            action($1.pointee)
        }
    }
}

swhitty

struct AnyEquatable: Equatable {
    let base: Any
    let isEqual: (_ other: AnyEquatable) -> Bool
    
    init<T: Equatable>(_ base: T) {
        self.base = base
        self.isEqual = { base == $0.base as? T }
    }
  
    public static func ==(lhs: AnyEquatable, rhs: AnyEquatable) -> Bool {