Complete swift package manager support

Author: Luc Dion

Sources/Coordinates.swift

@@ -27,6 +27,9 @@
 
 import Foundation
 
+#if os(iOS)
+import UIKit
+
 class Coordinates {
     static func hCenter(_ view: UIView) -> CGFloat {
         return view.frame.minX + (view.frame.width / 2)
@@ -93,3 +96,5 @@ class Coordinates {
 public func setUnitTest(displayScale: CGFloat) {
     Coordinates.displayScale = displayScale
 }
+
+#endif

Sources/PinLayout.swift

@@ -27,6 +27,9 @@
 
 import Foundation
 
+#if os(iOS)
+import UIKit
+
 // MARK: - PinLayout UIView's extension
 public extension UIView {
     public var pin: PinLayout {
@@ -306,3 +309,5 @@ prefix operator -
 public prefix func - (p: Percent) -> Percent {
     return Percent(value: -p.value)
 }
+
+#endif

Sources/PinLayoutImpl.swift

@@ -27,6 +27,8 @@
 
 import Foundation
 
+#if os(iOS)
+    
 public var unitTestLastWarning: String?
 
 #if DEBUG
@@ -1196,3 +1198,4 @@ extension PinLayoutImpl {
     }
 }
 
+#endif

Sources/TypesImpl.swift

@@ -27,6 +27,9 @@
 
 import Foundation
 
+#if os(iOS)
+import UIKit
+
 typealias Context = () -> String
 typealias Size = (width: CGFloat?, height: CGFloat?)
 
@@ -151,3 +154,4 @@ extension Percent: CustomStringConvertible {
     }
 }
 
+#endif