remove Mirror

Author: swhitty

Sources/KeyValueEncoder.swift

@@ -122,8 +122,7 @@ extension KeyValueEncoder.NilEncodingStrategy {
     }
 
     static func isOptionalNone(_ value: Any) -> Bool {
-        if Mirror(reflecting: value).displayStyle == .optional,
-           case Optional<Any>.none = value {
+        if case nil as Any? = value {
             return true
         } else {
             return false

Tests/KeyValueEncoderTests.swift

@@ -665,6 +665,12 @@ struct KeyValueEncodedTests {
             ]
         )
     }
+
+    @Test
+    func aa() {
+        #expect(KeyValueEncoder.NilEncodingStrategy.isOptionalNone(Int?.none))
+        #expect(KeyValueEncoder.NilEncodingStrategy.isOptionalNone(Int??.none))
+    }
 }
 
 private extension KeyValueEncoder {