| /* |
| * Copyright 2015 Google Inc. All Rights Reserved. |
| * |
| * 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 COBALT_BINDINGS_TESTING_SCRIPT_OBJECT_OWNER_H_ |
| #define COBALT_BINDINGS_TESTING_SCRIPT_OBJECT_OWNER_H_ |
| |
| #include "base/optional.h" |
| #include "cobalt/script/wrappable.h" |
| |
| namespace cobalt { |
| namespace bindings { |
| namespace testing { |
| |
| template <typename T> |
| class ScriptObjectOwner { |
| public: |
| explicit ScriptObjectOwner(script::Wrappable* owner) : owner_(owner) {} |
| void TakeOwnership(const T& object) { |
| if (!object.IsNull()) { |
| reference_.emplace(owner_, object); |
| } else { |
| reference_ = base::nullopt; |
| } |
| } |
| typename T::Reference& reference() { return reference_.value(); } |
| bool IsSet() { return static_cast<bool>(reference_); } |
| |
| private: |
| script::Wrappable* owner_; |
| base::optional<typename T::Reference> reference_; |
| }; |
| |
| } // namespace testing |
| } // namespace bindings |
| } // namespace cobalt |
| |
| #endif // COBALT_BINDINGS_TESTING_SCRIPT_OBJECT_OWNER_H_ |