Add more dubug descriptions

Sources/SwiftDI/DIObject.swift

@@ -7,7 +7,7 @@
 
 import Foundation
 
-class DIObject {
+class DIObject: CustomDebugStringConvertible {
 
     let lazy: Lazy
     let type: Any.Type
@@ -26,4 +26,10 @@ class DIObject {
     }
 
     var lifeCycle: DILifeCycle = SwiftDI.Defaults.lifeCycle
+
+    var debugDescription: String {
+        let address = Unmanaged.passUnretained(self).toOpaque()
+        let type = String(describing: self.type)
+        return String(format: "[DIObject <%@>] %@ - %@", address.debugDescription, type, self.lifeCycle.debugDescription)
+    }
 }

Sources/SwiftDI/Resolver.swift

@@ -24,7 +24,11 @@ class DIResolver {
     }
 
     func resolve<T>(bundle: Bundle? = nil) -> T {
-        return makeObject(for: T.self, bundle: bundle, usingObject: nil) as! T
+        if let object = makeObject(for: T.self, bundle: bundle, usingObject: nil) {
+            return object as! T
+        } else {
+            fatalError("Couldn't found object for type \(T.self)")
+        }
     }
 
     func makeObject(for type: Any.Type, bundle: Bundle?, usingObject: DIObject?) -> Any? {

Sources/SwiftDI/SwiftDI.swift

@@ -31,3 +31,14 @@ public enum DILifeCycle {
     /// Dependency instance is created one per object graph.
     case objectGraph
 }
+
+extension DILifeCycle: CustomDebugStringConvertible {
+    public var debugDescription: String {
+        switch self {
+        case .single: return "single"
+        case .prototype: return "protorype"
+        case .weakSingle: return "weakSingle"
+        case .objectGraph: return "objectGraph"
+        }
+    }
+}

Sources/SwiftDI/Utils/Utils.swift

@@ -7,12 +7,18 @@
 
 import Foundation
 
-class Weak<T: AnyObject> {
+class Weak<T: AnyObject>: CustomDebugStringConvertible {
     weak var value: T?
 
     init(value: T) {
         self.value = value
     }
+
+    var debugDescription: String {
+        let address = Unmanaged.passUnretained(self).toOpaque()
+        let type = String(describing: T.self)
+        return String(format: "<Weak<%@>>: %@, value: %@", type, address.debugDescription, value.debugDescription)
+    }
 }
 
 class Lazy {

SwiftDI.podspec

@@ -9,8 +9,9 @@ Pod::Spec.new do |s|
     s.source           = { :git => 'https://github.com/LiteCode/SwiftDI.git', :tag => s.version.to_s }
 
     s.ios.deployment_target = '13.0'
+    s.macos.deployment_target = '10.15'
     s.swift_version = '5.1'
     s.source_files = 'Sources/SwiftDI/**/*.{swift}'
 
   end
-
+