From f7f9171a320e644decf2fe90cb93ebc4f0f4457b Mon Sep 17 00:00:00 2001
From: Lukas Krecan <lukas.krecan@adleritech.net>
Date: Sun, 6 Oct 2019 09:45:52 +0200
Subject: [PATCH] Making the code more readable

---
 .../kotlin/KotlinBeanDeserializerModifier.kt   | 18 +++++++++++-------
 1 file changed, 11 insertions(+), 7 deletions(-)

diff --git a/src/main/kotlin/com/fasterxml/jackson/module/kotlin/KotlinBeanDeserializerModifier.kt b/src/main/kotlin/com/fasterxml/jackson/module/kotlin/KotlinBeanDeserializerModifier.kt
index eaf42716..28c782f2 100644
--- a/src/main/kotlin/com/fasterxml/jackson/module/kotlin/KotlinBeanDeserializerModifier.kt
+++ b/src/main/kotlin/com/fasterxml/jackson/module/kotlin/KotlinBeanDeserializerModifier.kt
@@ -10,17 +10,21 @@ object KotlinBeanDeserializerModifier: BeanDeserializerModifier() {
             config: DeserializationConfig,
             beanDesc: BeanDescription,
             deserializer: JsonDeserializer<*>
-    ) = super.modifyDeserializer(config, beanDesc, deserializer)
-            .maybeSingletonDeserializer(objectSingletonInstance(beanDesc.beanClass))
-}
+    ): JsonDeserializer<out Any> {
+        val modifiedFromParent = super.modifyDeserializer(config, beanDesc, deserializer)
+
+        val objectSingletonInstance = objectSingletonInstance(beanDesc.beanClass)
 
-fun JsonDeserializer<*>.maybeSingletonDeserializer(singleton: Any?) = when (singleton) {
-    null -> this
-    else -> this.asSingletonDeserializer(singleton)
+        return if (objectSingletonInstance != null) {
+            KotlinObjectSingletonDeserializer(objectSingletonInstance, modifiedFromParent)
+        } else {
+            modifiedFromParent
+        }
+    }
 }
 
 private fun objectSingletonInstance(beanClass: Class<*>): Any? = if (!beanClass.isKotlinClass()) {
     null
 } else {
     beanClass.kotlin.objectInstance
-}
\ No newline at end of file
+}