1 files changed, 65 insertions, 0 deletions
diff --git a/runtime/handle_wrapper.h b/runtime/handle_wrapper.h
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--- /dev/null
+++ b/runtime/handle_wrapper.h
@@ -0,0 +1,65 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ART_RUNTIME_HANDLE_WRAPPER_H_
+#define ART_RUNTIME_HANDLE_WRAPPER_H_
+
+#include "handle.h"
+#include "obj_ptr.h"
+
+namespace art {
+
+// A wrapper which wraps around Object** and restores the pointer in the destructor.
+// TODO: Delete
+template<class T>
+class HandleWrapper : public MutableHandle<T> {
+ public:
+  HandleWrapper(T** obj, const MutableHandle<T>& handle)
+     : MutableHandle<T>(handle), obj_(obj) {
+  }
+
+  HandleWrapper(const HandleWrapper&) = default;
+
+  ~HandleWrapper() {
+    *obj_ = MutableHandle<T>::Get();
+  }
+
+ private:
+  T** const obj_;
+};
+
+
+// A wrapper which wraps around ObjPtr<Object>* and restores the pointer in the destructor.
+// TODO: Add more functionality.
+template<class T>
+class HandleWrapperObjPtr : public MutableHandle<T> {
+ public:
+  HandleWrapperObjPtr(ObjPtr<T>* obj, const MutableHandle<T>& handle)
+      : MutableHandle<T>(handle), obj_(obj) {}
+
+  HandleWrapperObjPtr(const HandleWrapperObjPtr&) = default;
+
+  ~HandleWrapperObjPtr() {
+    *obj_ = ObjPtr<T>(MutableHandle<T>::Get());
+  }
+
+ private:
+  ObjPtr<T>* const obj_;
+};
+
+}  // namespace art
+
+#endif  // ART_RUNTIME_HANDLE_WRAPPER_H_