| // Copyright 2017 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_SCRIPT_SCRIPT_VALUE_FACTORY_H_ |
| #define COBALT_SCRIPT_SCRIPT_VALUE_FACTORY_H_ |
| |
| #include "base/memory/scoped_ptr.h" |
| #include "cobalt/script/array_buffer.h" |
| #include "cobalt/script/promise.h" |
| #include "cobalt/script/script_value.h" |
| namespace cobalt { |
| namespace script { |
| |
| class ScriptValueFactory { |
| public: |
| using WrappablePromise = scoped_refptr<Wrappable>; |
| |
| virtual ~ScriptValueFactory() {} |
| |
| // Create a Promise<T> where T is void or a primitive type. |
| template <typename T> |
| Handle<Promise<T>> CreateBasicPromise() { |
| return CreatePromise<T>(); |
| } |
| |
| // Note that Promise<T> where T is an interface will return a |
| // Promise<scoped_refptr<Wrappable>>. Calling code could supply any Wrappable |
| // when calling Resolve. This is because we need to explicitly instantiate |
| // the template specializations for creating Promises. It is not |
| // realistic to instantiate the template specialization for every interface |
| // defined in Cobalt. |
| // TODO: Figure out how to make it so only a scoped_refptr<T> can be accepted. |
| template <typename T> |
| Handle<Promise<WrappablePromise>> CreateInterfacePromise() { |
| return CreatePromise<WrappablePromise>(); |
| } |
| |
| private: |
| // Non-virtual template function that will be implemented in the |
| // engine-specific implementation for ScriptValueFactory. |
| template <typename T> |
| Handle<Promise<T>> CreatePromise(); |
| }; |
| |
| } // namespace script |
| } // namespace cobalt |
| |
| #endif // COBALT_SCRIPT_SCRIPT_VALUE_FACTORY_H_ |