1 /* 2 * Copyright (c) 2021 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16 #include "ecmascript/js_dataview.h" 17 18 namespace panda::ecmascript { GetElementSize(DataViewType type)19uint32_t JSDataView::GetElementSize(DataViewType type) 20 { 21 uint32_t size; 22 switch (type) { 23 case DataViewType::INT8: 24 case DataViewType::UINT8: 25 case DataViewType::UINT8_CLAMPED: 26 size = 1; 27 break; 28 case DataViewType::INT16: 29 case DataViewType::UINT16: 30 size = 2; // 2 means the length 31 break; 32 case DataViewType::INT32: 33 case DataViewType::UINT32: 34 case DataViewType::FLOAT32: 35 size = 4; // 4 means the length 36 break; 37 case DataViewType::FLOAT64: 38 case DataViewType::BIGINT64: 39 case DataViewType::BIGUINT64: 40 size = 8; // 8 means the length 41 break; 42 default: 43 LOG_ECMA(FATAL) << "this branch is unreachable"; 44 UNREACHABLE(); 45 } 46 return size; 47 } 48 } // namespace panda::ecmascript