1 files changed, 26 insertions, 0 deletions
diff --git a/third_party/rust/uniffi_bindgen/src/bindings/kotlin/templates/ObjectCleanerHelperAndroid.kt b/third_party/rust/uniffi_bindgen/src/bindings/kotlin/templates/ObjectCleanerHelperAndroid.kt
new file mode 100644
index 0000000000..d025879848
--- /dev/null
+++ b/third_party/rust/uniffi_bindgen/src/bindings/kotlin/templates/ObjectCleanerHelperAndroid.kt
@@ -0,0 +1,26 @@
+{{- self.add_import("android.os.Build") }}
+{{- self.add_import("androidx.annotation.RequiresApi") }}
+
+private fun UniffiCleaner.Companion.create(): UniffiCleaner =
+    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.UPSIDE_DOWN_CAKE) {
+        AndroidSystemCleaner()
+    } else {
+        UniffiJnaCleaner()
+    }
+
+// The SystemCleaner, available from API Level 33.
+// Some API Level 33 OSes do not support using it, so we require API Level 34.
+@RequiresApi(Build.VERSION_CODES.UPSIDE_DOWN_CAKE)
+private class AndroidSystemCleaner : UniffiCleaner {
+    val cleaner = android.system.SystemCleaner.cleaner()
+
+    override fun register(value: Any, cleanUpTask: Runnable): UniffiCleaner.Cleanable =
+        AndroidSystemCleanable(cleaner.register(value, cleanUpTask))
+}
+
+@RequiresApi(Build.VERSION_CODES.UPSIDE_DOWN_CAKE)
+private class AndroidSystemCleanable(
+    private val cleanable: java.lang.ref.Cleaner.Cleanable,
+) : UniffiCleaner.Cleanable {
+    override fun clean() = cleanable.clean()
+}