refactor: migrate DynamicFromObject to Kotlin

packages/react-native/ReactAndroid/src/main/java/com/facebook/react/bridge/DynamicFromObject.kt

@@ -0,0 +1,83 @@
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+package com.facebook.react.bridge
+
+import com.facebook.common.logging.FLog
+import com.facebook.react.common.ReactConstants
+
+/** Implementation of Dynamic wrapping a ReadableArray. */
+public class DynamicFromObject(private val value: Any?) : Dynamic {
+  override fun recycle() {
+    // Noop - nothing to recycle since there is no pooling
+  }
+
+  override val isNull: Boolean
+    get() = value == null
+
+  override fun asBoolean(): Boolean {
+    if (value is Boolean) {
+      return value
+    }
+    throw ClassCastException("Dynamic value from Object is not a boolean")
+  }
+
+  override fun asDouble(): Double {
+    if (value is Number) {
+      return value as Double
+    }
+    throw ClassCastException("Dynamic value from Object is not a number")
+  }
+
+  override fun asInt(): Int {
+    if (value is Number) {
+      // Numbers from JS are always Doubles
+      return (value as Double).toInt()
+    }
+    throw ClassCastException("Dynamic value from Object is not a number")
+  }
+
+  override fun asString(): String {
+    if (value is String) {
+      return value
+    }
+    throw ClassCastException("Dynamic value from Object is not a string")
+  }
+
+  override fun asArray(): ReadableArray {
+    if (value is ReadableArray) {
+      return value
+    }
+    throw ClassCastException("Dynamic value from Object is not a ReadableArray")
+  }
+
+  override fun asMap(): ReadableMap {
+    if (value is ReadableMap) {
+      return value
+    }
+    throw ClassCastException("Dynamic value from Object is not a ReadableMap")
+  }
+
+  override val type: ReadableType
+    get() {
+      return when (value) {
+        null -> ReadableType.Null
+        is Boolean -> ReadableType.Boolean
+        is Number -> ReadableType.Number
+        is String -> ReadableType.String
+        is ReadableMap -> ReadableType.Map
+        is ReadableArray -> ReadableType.Array
+        else -> {
+          FLog.e(
+            ReactConstants.TAG,
+            "Unmapped object type " + (value.javaClass.name)
+          )
+          ReadableType.Null
+        }
+      }
+    }
+}