Merge pull request #16 from Jeff-Meadows/remove_mirror

Remove use of Mirror in Optional nil check.

Author: GottaGetSwifty

README.md

@@ -421,7 +421,7 @@ struct MyType: Codable {
     var createdAt: Date
 
     @OptionalCoding<SecondsSince1970DateCoding>
-    var updatedAt: Date
+    var updatedAt: Date?
 }
 ```
 

Sources/CodableWrappers/Core/OptionalWrappers.swift

@@ -31,9 +31,7 @@ extension KeyedEncodingContainer {
     // Used to make make sure OptionalCodingWrappers encode no value when it's wrappedValue is nil.
     public mutating func encode<T>(_ value: T, forKey key: KeyedEncodingContainer<K>.Key) throws where T: Encodable, T: OptionalEncodingWrapper {
 
-        // Currently uses Mirror...this should really be avoided, but I'm not sure there's another way to do it cleanly/safely.
-        let mirror = Mirror(reflecting: value.wrappedValue)
-        guard mirror.displayStyle != .optional || !mirror.children.isEmpty else {
+        if case Optional<Any>.none = value.wrappedValue as Any {
             return
         }