wip

Demo/Demo/Swing.swift

@@ -9,19 +9,19 @@ extension AnyNavigationTransition {
 
 struct Swing: NavigationTransition {
     var body: some NavigationTransition {
-        let angle = Angle(degrees: 70)
-        let offset: CGFloat = 150
+        let angle = 70.0
+        let offset = 150.0
 
         Slide(axis: .horizontal)
         MirrorPush {
             OnInsertion {
-                Rotate(-angle)
+                Rotate(.degrees(-angle))
                 Offset(x: offset)
                 Opacity()
                 Scale(0.5)
             }
             OnRemoval {
-                Rotate(angle)
+                Rotate(.degrees(angle))
                 Offset(x: -offset)
             }
         }
@@ -32,9 +32,3 @@ struct Swing: NavigationTransition {
         }
     }
 }
-
-extension Angle {
-    static prefix func - (_ rhs: Self) -> Self {
-        .init(degrees: -rhs.degrees)
-    }
-}

Sources/AtomicTransition/AtomicTransition.swift

@@ -31,8 +31,20 @@ public enum AtomicTransitionOperation {
     case removal
 }
 
+/// Defines an `AtomicTransition` that can be mirrored. It is a specialized building block of `NavigationTransition`.
+///
+/// A transition that conform to these protocol expose a `Mirrored` associated type expressing the type resulting
+/// from mirroring the transition.
 public protocol MirrorableAtomicTransition: AtomicTransition {
     associatedtype Mirrored: AtomicTransition
 
+    /// The mirrored transition.
+    ///
+    /// > Note: A good indicator of a proper implementation for this function is that it should round-trip
+    /// > to its original value when called twice:
+    /// >
+    /// > ```swift
+    /// > Offset(x: 10).mirrored().mirrored() == Offset(x: 10)
+    /// > ```
     func mirrored() -> Mirrored
 }