Removed WithScopedValue

Examples/DerivedBehavior/ContentView.swift

@@ -18,6 +18,14 @@ class AppViewModel: ObservableObject {
  }
 }
 
+struct CounterTabItem: View {
+ @ScopedValue(\AppViewModel.counter.count) var count
+ var body: some View {
+ Self._printChanges()
+ return Text("Counter \(self.count)")
+ }
+}
+
 struct ProfileTabItem: View {
  @ScopedValue(\AppViewModel.profile.favorites.count) var favoritesCount
  var body: some View {
@@ -32,9 +40,7 @@ struct ContentView: View {
  return TabView {
  CounterView()
  .tabItem {
- WithScopedValue(\AppViewModel.counter.count) { count in
- Text("Counter \(count)")
- }
+ CounterTabItem()
  }
 
  ProfileView()

README.md

@@ -4,7 +4,6 @@ A collection of tools for working with observable objects in SwiftUI.
 
 * [Motivation](#motivation)
 * [Tools](#tools)
-* [Examples](#examples)
 * [Installation](#installation)
 
 
@@ -192,7 +191,52 @@ struct CounterView: View {
 }
 ```
 
-## Examples
+### Dependency
+
+Similar to SwiftUI's `@Environment` attribute but for observable objects instead of views. 
+
+```swift
+class TwentySideDie: ObservableObject {
+ @Dependency(\.numberGenerator) var numberGenerator
+ @Published var value: Int = 20
+
+ func roll() {
+ self.value = self.numberGenerator.random(in: 1...20)
+ }
+}
+```
+
+### Dependencies
+
+Dependencies can be defined by defining a type that conforst to the `DependencyKey` protocol, and then extending the dependencies structure with a new property:
+
+```swift
+struct NumberGenerator {
+ var random: (ClosedRange<Int>) -> Int
+
+ func random(in range: ClosedRange<Int>) -> Int {
+ self.random(range)
+ }
+
+ static let `default` = Self { Int.random(in: $0) }
+}
+
+enum NumberGeneratorKey: DependencyKey {
+ static let defaultValue: NumberGenerator = .default
+}
+
+extension Dependencies {
+ var numberGenerator: NumberGenerator {
+ get { self[NumberGeneratorKey.self] }
+ set { self[NumberGeneratorKey.self] = newValue }
+ }
+}
+```
+
+
+### WithDependencies 
+
+### withDependencies(\_:\_:)
 
 ## Installation