Remove Lazy and Provider wrapper types

Author: skorulis-ap

Sources/Swinject/InstanceWrapper.swift

@@ -7,61 +7,6 @@ protocol InstanceWrapper {
     init?(inContainer container: Container, withInstanceFactory factory: ((GraphIdentifier?) -> Any?)?)
 }
 
-/// Wrapper to enable delayed dependency instantiation.
-/// `Lazy<Type>` does not need to be explicitly registered into the ``Container`` - resolution will work
-/// as long as there is a registration for the `Type`.
-public final class Lazy<Service>: InstanceWrapper {
-    static var wrappedType: Any.Type { return Service.self }
-
-    private let factory: (GraphIdentifier?) -> Any?
-    private let graphIdentifier: GraphIdentifier?
-    private weak var container: Container?
-
-    init?(inContainer container: Container, withInstanceFactory factory: ((GraphIdentifier?) -> Any?)?) {
-        guard let factory = factory else { return nil }
-        self.factory = factory
-        graphIdentifier = container.currentObjectGraph
-        self.container = container
-    }
-
-    private var _instance: Service?
-
-    /// Getter for the wrapped object.
-    /// It will be resolved from the ``Container`` when first accessed, all other calls will return the same instance.
-    public var instance: Service {
-        if let instance = _instance {
-            return instance
-        } else {
-            _instance = makeInstance()
-            return _instance!
-        }
-    }
-
-    private func makeInstance() -> Service? {
-        factory(graphIdentifier) as? Service
-    }
-}
-
-/// Wrapper to enable delayed dependency instantiation.
-/// `Provider<Type>` does not need to be explicitly registered into the ``Container`` - resolution will work
-/// as long as there is a registration for the `Type`.
-public final class Provider<Service>: InstanceWrapper {
-    static var wrappedType: Any.Type { return Service.self }
-
-    private let factory: (GraphIdentifier?) -> Any?
-
-    init?(inContainer _: Container, withInstanceFactory factory: ((GraphIdentifier?) -> Any?)?) {
-        guard let factory = factory else { return nil }
-        self.factory = factory
-    }
-
-    /// Getter for the wrapped object.
-    /// New instance will be resolved from the ``Container`` every time it is accessed.
-    public var instance: Service {
-        return factory(.none) as! Service
-    }
-}
-
 extension Optional: InstanceWrapper {
     static var wrappedType: Any.Type { return Wrapped.self }
 

Tests/SwinjectTests/Circularity.swift

@@ -70,35 +70,3 @@ internal class DDependingOnBC: D {
 internal class CDependingOnWeakB: C {
     weak var b: B?
 }
-
-internal protocol LazyParentProtocol {
-    var child1: LazyChildProtocol { get }
-    var child2: LazyChildProtocol { get }
-}
-internal protocol LazyChildProtocol: AnyObject {
-    var lazy: Lazy<LazilyResolvedProtocol> { get }
-}
-internal protocol LazySingletonProtocol {
-    var lazy: Lazy<LazilyResolvedProtocol> { get }
-}
-internal protocol LazilyResolvedProtocol: AnyObject { }
-
-internal class LazyParent: LazyParentProtocol {
-    let child1: LazyChildProtocol
-    let child2: LazyChildProtocol
-
-    init(child1: LazyChildProtocol, child2: LazyChildProtocol) {
-        self.child1 = child1
-        self.child2 = child2
-    }
-}
-
-internal class LazyChild: LazyChildProtocol, LazySingletonProtocol {
-    let lazy: Lazy<LazilyResolvedProtocol>
-
-    init(lazy: Lazy<LazilyResolvedProtocol>) {
-        self.lazy = lazy
-    }
-}
-
-internal class LazilyResolved: LazilyResolvedProtocol { }

Tests/SwinjectTests/ContainerTests.Speed.swift

@@ -45,8 +45,6 @@ fileprivate extension Container {
         for _ in 0..<500_000 {
             _ = resolve(Animal.self) as? Cat
             _ = resolve(Animal.self, argument: "Mimi") as? Cat
-            let lazy = resolve(Lazy<Animal>.self, arguments: "Mew", true)
-            _ = lazy?.instance as? Cat
         }
     }
 }