From c3c19377d6533fbe5ad9621ffde0ae42c60a5be2 Mon Sep 17 00:00:00 2001
From: Arushi Kesarwani <arushikesarwani@meta.com>
Date: Tue, 2 Apr 2024 01:27:00 -0700
Subject: [PATCH] Migrate JSCInstance to Kotlin (#43750)

Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/43750

Changelog: [Internal]

Differential Revision: D55610929
---
 .../ReactAndroid/api/ReactAndroid.api         |  7 +++--
 .../facebook/react/runtime/JSCInstance.java   | 27 -------------------
 .../com/facebook/react/runtime/JSCInstance.kt | 24 +++++++++++++++++
 3 files changed, 29 insertions(+), 29 deletions(-)
 delete mode 100644 packages/react-native/ReactAndroid/src/main/java/com/facebook/react/runtime/JSCInstance.java
 create mode 100644 packages/react-native/ReactAndroid/src/main/java/com/facebook/react/runtime/JSCInstance.kt

diff --git a/packages/react-native/ReactAndroid/api/ReactAndroid.api b/packages/react-native/ReactAndroid/api/ReactAndroid.api
index f82ec0593a43bd..73449433924335 100644
--- a/packages/react-native/ReactAndroid/api/ReactAndroid.api
+++ b/packages/react-native/ReactAndroid/api/ReactAndroid.api
@@ -3645,9 +3645,12 @@ public class com/facebook/react/runtime/CoreReactPackage$$ReactModuleInfoProvide
 	public fun getReactModuleInfos ()Ljava/util/Map;
 }
 
-public class com/facebook/react/runtime/JSCInstance : com/facebook/react/runtime/JSRuntimeFactory {
+public final class com/facebook/react/runtime/JSCInstance : com/facebook/react/runtime/JSRuntimeFactory {
+	public static final field Companion Lcom/facebook/react/runtime/JSCInstance$Companion;
 	public fun <init> ()V
-	protected static fun initHybrid ()Lcom/facebook/jni/HybridData;
+}
+
+public final class com/facebook/react/runtime/JSCInstance$Companion {
 }
 
 public abstract class com/facebook/react/runtime/JSRuntimeFactory {
diff --git a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/runtime/JSCInstance.java b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/runtime/JSCInstance.java
deleted file mode 100644
index 0524c58eac2312..00000000000000
--- a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/runtime/JSCInstance.java
+++ /dev/null
@@ -1,27 +0,0 @@
-/*
- * 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.runtime;
-
-import com.facebook.infer.annotation.Nullsafe;
-import com.facebook.jni.HybridData;
-import com.facebook.jni.annotations.DoNotStrip;
-import com.facebook.soloader.SoLoader;
-
-@Nullsafe(Nullsafe.Mode.LOCAL)
-public class JSCInstance extends JSRuntimeFactory {
-  static {
-    SoLoader.loadLibrary("jscinstance");
-  }
-
-  @DoNotStrip
-  protected static native HybridData initHybrid();
-
-  public JSCInstance() {
-    super(initHybrid());
-  }
-}
diff --git a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/runtime/JSCInstance.kt b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/runtime/JSCInstance.kt
new file mode 100644
index 00000000000000..6f3cfcb21c4417
--- /dev/null
+++ b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/runtime/JSCInstance.kt
@@ -0,0 +1,24 @@
+/*
+ * 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.runtime
+
+import com.facebook.jni.HybridData
+import com.facebook.jni.annotations.DoNotStrip
+import com.facebook.soloader.SoLoader
+import com.facebook.soloader.annotation.SoLoaderLibrary
+
+@SoLoaderLibrary("jscinstance")
+public class JSCInstance constructor() : JSRuntimeFactory(initHybrid()) {
+  public companion object {
+    init {
+      SoLoader.loadLibrary("jscinstance")
+    }
+
+    @DoNotStrip protected external fun initHybrid(): HybridData
+  }
+}