From 1a832b72c5101f02564b6813359f6b96e43a8553 Mon Sep 17 00:00:00 2001
From: Hossein Yousefi <yousefi@google.com>
Date: Fri, 11 Oct 2024 09:58:04 +0200
Subject: [PATCH] [jnigen] Add a helper for sending jobjects through method
 channels (#1648)

---
 pkgs/jni/CHANGELOG.md                               |  6 ++++++
 .../java/com/github/dart_lang/jni/JniUtils.java     | 13 +++++++++++++
 pkgs/jni/pubspec.yaml                               |  2 +-
 3 files changed, 20 insertions(+), 1 deletion(-)
 create mode 100644 pkgs/jni/java/src/main/java/com/github/dart_lang/jni/JniUtils.java

diff --git a/pkgs/jni/CHANGELOG.md b/pkgs/jni/CHANGELOG.md
index ab49de1ea..29c7fb34f 100644
--- a/pkgs/jni/CHANGELOG.md
+++ b/pkgs/jni/CHANGELOG.md
@@ -1,3 +1,9 @@
+## 0.12.1-wip
+
+- Add `JniUtils.fromReferenceAddress` which helps with sending `JObject`s
+  through method channels. You can send the address of the pointer as `long` and
+  reconstruct the class using the helper method.
+
 ## 0.12.0
 
 - **Breaking Change**: Renamed `castTo` to `as`.
diff --git a/pkgs/jni/java/src/main/java/com/github/dart_lang/jni/JniUtils.java b/pkgs/jni/java/src/main/java/com/github/dart_lang/jni/JniUtils.java
new file mode 100644
index 000000000..0758f5a18
--- /dev/null
+++ b/pkgs/jni/java/src/main/java/com/github/dart_lang/jni/JniUtils.java
@@ -0,0 +1,13 @@
+// Copyright (c) 2024, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+package com.github.dart_lang.jni;
+
+public class JniUtils {
+  static {
+    System.loadLibrary("dartjni");
+  }
+
+  public static native Object fromReferenceAddress(long address);
+}
diff --git a/pkgs/jni/pubspec.yaml b/pkgs/jni/pubspec.yaml
index 4dea4acfe..e75140057 100644
--- a/pkgs/jni/pubspec.yaml
+++ b/pkgs/jni/pubspec.yaml
@@ -4,7 +4,7 @@
 
 name: jni
 description: A library to access JNI from Dart and Flutter that acts as a support library for package:jnigen.
-version: 0.12.0
+version: 0.12.1-wip
 repository: https://github.com/dart-lang/native/tree/main/pkgs/jni
 
 topics: