Manual resync of moved fbjni files

lib/fb/src/main/cpp/jni/References.cpp

@@ -0,0 +1,41 @@
+/*
+ * Copyright (c) 2015-present, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree. An additional grant
+ * of patent rights can be found in the PATENTS file in the same directory.
+ */
+
+#include <fb/fbjni/References.h>
+
+namespace facebook {
+namespace jni {
+
+JniLocalScope::JniLocalScope(JNIEnv* env, jint capacity)
+    : env_(env) {
+  hasFrame_ = false;
+  auto pushResult = env->PushLocalFrame(capacity);
+  FACEBOOK_JNI_THROW_EXCEPTION_IF(pushResult < 0);
+  hasFrame_ = true;
+}
+
+JniLocalScope::~JniLocalScope() {
+  if (hasFrame_) {
+    env_->PopLocalFrame(nullptr);
+  }
+}
+
+namespace internal {
+
+// Default implementation always returns true.
+// Platform-specific sources can override this.
+bool doesGetObjectRefTypeWork() __attribute__ ((weak));
+bool doesGetObjectRefTypeWork() {
+  return true;
+}
+
+}
+
+}
+}