| // Copyright 2018 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. |
| |
| #include "cobalt/script/mozjs-45/mozjs_data_view.h" |
| |
| #include "cobalt/base/polymorphic_downcast.h" |
| |
| namespace cobalt { |
| namespace script { |
| |
| // static |
| Handle<DataView> DataView::New(GlobalEnvironment* global_environment, |
| Handle<ArrayBuffer> array_buffer, |
| size_t byte_offset, size_t byte_length) { |
| auto* mozjs_global_environment = |
| base::polymorphic_downcast<mozjs::MozjsGlobalEnvironment*>( |
| global_environment); |
| JSContext* context = mozjs_global_environment->context(); |
| JS::RootedObject global_object(context, |
| mozjs_global_environment->global_object()); |
| JSAutoRequest auto_request(context); |
| JSAutoCompartment auto_compartment(context, global_object); |
| |
| const auto* mozjs_array_buffer = base::polymorphic_downcast< |
| const mozjs::MozjsUserObjectHolder<mozjs::MozjsArrayBuffer>*>( |
| array_buffer.GetScriptValue()); |
| DCHECK(mozjs_array_buffer->js_value().isObject()); |
| JS::RootedObject rooted_array_buffer(context, |
| mozjs_array_buffer->js_object()); |
| JS::RootedValue data_view(context); |
| data_view.setObjectOrNull( |
| JS_NewDataView(context, rooted_array_buffer, byte_offset, byte_length)); |
| DCHECK(data_view.isObject()); |
| return Handle<DataView>( |
| new mozjs::MozjsUserObjectHolder<mozjs::MozjsDataView>(context, |
| data_view)); |
| } |
| |
| } // namespace script |
| } // namespace cobalt |