Fix self reference occuring when performing an internalizing config move (#1447)

1 files changed, 23 insertions, 0 deletions

diff --git a/src/main/java/at/hannibal2/skyhanni/utils/JsonUtils.kt b/src/main/java/at/hannibal2/skyhanni/utils/JsonUtils.kt
index f9a279c46..cc3dda044 100644
--- a/src/main/java/at/hannibal2/skyhanni/utils/JsonUtils.kt
+++ b/src/main/java/at/hannibal2/skyhanni/utils/JsonUtils.kt
@@ -1,7 +1,9 @@
 package at.hannibal2.skyhanni.utils
 
 import com.google.gson.Gson
+import com.google.gson.JsonArray
 import com.google.gson.JsonElement
+import com.google.gson.JsonObject
 import java.io.Reader
 import kotlin.reflect.jvm.javaType
 import kotlin.reflect.typeOf
@@ -12,3 +14,24 @@ inline fun <reified T : Any> Gson.fromJson(jsonElement: JsonElement): T =
     this.fromJson(jsonElement, typeOf<T>().javaType)
 
 inline fun <reified T : Any> Gson.fromJson(reader: Reader): T = this.fromJson(reader, typeOf<T>().javaType)
+
+/**
+ * Straight forward deep copy. This is included in gson as well, but different versions have it exposed privately instead of publicly,
+ * so this reimplementation is here as an always public alternative.
+ */
+fun JsonElement.shDeepCopy(): JsonElement {
+    return when (this) {
+        is JsonObject -> JsonObject().also {
+            for (entry in this.entrySet())
+                it.add(entry.key, entry.value.shDeepCopy())
+        }
+
+        is JsonArray -> JsonArray().also {
+            for (entry in this) {
+                it.add(entry.shDeepCopy())
+            }
+        }
+
+        else -> this
+    }
+}