Added new Mirror+IterateProperties

BXSwiftUtils/Collections/Mirror+IterateProperties.swift

@@ -0,0 +1,59 @@
+//
+//  Mirror+IterateProperties.swift
+//  BXSwiftUtils
+//
+//  Created by Peter Baumgartner on 19.02.19.
+//  Copyright ©2019 Imagine GbR. All rights reserved.
+//
+
+
+// Based on blog post https://www.swiftbysundell.com/posts/reflection-in-swift
+
+
+//----------------------------------------------------------------------------------------------------------------------
+
+
+public extension Mirror
+{
+
+	/// Iterates over properties with the specified type of a target object and perform a closure for each of them.
+	///
+	/// Assuming you have properties conforming to the Cleanable protocol, to call the cleanup() function on all
+	/// properties use the following code:
+	///
+	///		Mirror.iterateProperties(of:self, recursive:true)
+	///		{
+    ///         childProperty:Cleanable in
+    ///         childProperty.cleanup()
+    ///		}
+	///
+	/// - parameter target: The object that holds the properties
+	/// - parameter type: The type of properties to iterate
+	/// - parameter recursive: If true descend recursively into the object graph
+	/// - parameter closure: The closure to be called for each property that qualifies
+
+    public static func iterateProperties<T>(
+    	of target: Any,
+        with type: T.Type = T.self,
+        recursive: Bool = false,
+        perform closure: (T)->Void)
+    {
+        let mirror = Mirror(reflecting: target)
+
+        for child in mirror.children
+        {
+        	if let property = child.value as? T
+        	{
+				closure(property)
+        	}
+
+            if recursive
+            {
+                Mirror.iterateProperties(of:child.value, recursive:true, perform:closure)
+            }
+        }
+    }
+}
+
+
+//----------------------------------------------------------------------------------------------------------------------