sugar for bindings from actions

Author: square-tomb

Samples/TicTacToe/Sources/Authentication/LoginScreen.swift

@@ -32,7 +32,7 @@ struct LoginScreen: SwiftUIScreen {
                 "[email protected]",
                 text: model.binding(
                     get: \.email,
-                    set: { screen in { screen.actionSink.send(.emailUpdated($0)) } }
+                    set: Action.emailUpdated
                 )
             )
             .autocapitalization(.none)
@@ -43,7 +43,7 @@ struct LoginScreen: SwiftUIScreen {
                 "password",
                 text: model.binding(
                     get: \.password,
-                    set: { screen in { screen.actionSink.send(.passwordUpdated($0)) } }
+                    set: Action.passwordUpdated
                 ),
                 onCommit: { model.value.actionSink.send(.login) }
             )

WorkflowSwiftUI/Sources/ObservableValue+Binding.swift

@@ -45,4 +45,16 @@ public extension ObservableValue {
     }
 }
 
+public extension ObservableValue where Value: SwiftUIScreen {
+    func binding<T>(
+        get: @escaping (Value) -> T,
+        set: @escaping (T) -> (Value.Action)
+    ) -> Binding<T> {
+        binding(
+            get: get,
+            set: { screen in { screen.actionSink.send(set($0)) } }
+        )
+    }
+}
+
 #endif