add all api to sort by month

Sources/App/Libraries/SwiftDate/Supports/AssociatedValues.swift

@@ -0,0 +1,74 @@
+//
+//  SwiftDate
+//  Parse, validate, manipulate, and display dates, time and timezones in Swift
+//
+//  Created by Daniele Margutti
+//   - Web: https://www.danielemargutti.com
+//   - Twitter: https://twitter.com/danielemargutti
+//   - Mail: hello@danielemargutti.com
+//
+//  Copyright © 2019 Daniele Margutti. Licensed under MIT License.
+//
+
+#if os(Linux)
+
+#else
+import Foundation
+import ObjectiveC.runtime
+
+internal func getAssociatedValue<T>(key: String, object: AnyObject) -> T? {
+	return (objc_getAssociatedObject(object, key.address) as? AssociatedValue)?.value as? T
+}
+
+internal func getAssociatedValue<T>(key: String, object: AnyObject, initialValue: @autoclosure () -> T) -> T {
+	return getAssociatedValue(key: key, object: object) ?? setAndReturn(initialValue: initialValue(), key: key, object: object)
+}
+
+internal func getAssociatedValue<T>(key: String, object: AnyObject, initialValue: () -> T) -> T {
+	return getAssociatedValue(key: key, object: object) ?? setAndReturn(initialValue: initialValue(), key: key, object: object)
+}
+
+private func setAndReturn<T>(initialValue: T, key: String, object: AnyObject) -> T {
+	set(associatedValue: initialValue, key: key, object: object)
+	return initialValue
+}
+
+internal func set<T>(associatedValue: T?, key: String, object: AnyObject) {
+	set(associatedValue: AssociatedValue(associatedValue), key: key, object: object)
+}
+
+internal func set<T: AnyObject>(weakAssociatedValue: T?, key: String, object: AnyObject) {
+	set(associatedValue: AssociatedValue(weak: weakAssociatedValue), key: key, object: object)
+}
+
+extension String {
+
+	fileprivate var address: UnsafeRawPointer {
+		return UnsafeRawPointer(bitPattern: abs(hashValue))!
+	}
+
+}
+
+private func set(associatedValue: AssociatedValue, key: String, object: AnyObject) {
+	objc_setAssociatedObject(object, key.address, associatedValue, .OBJC_ASSOCIATION_RETAIN_NONATOMIC)
+}
+
+private class AssociatedValue {
+
+	weak var _weakValue: AnyObject?
+	var _value: Any?
+
+	var value: Any? {
+		return _weakValue ?? _value
+	}
+
+	init(_ value: Any?) {
+		_value = value
+	}
+
+	init(weak: AnyObject?) {
+		_weakValue = weak
+	}
+
+}
+#endif