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 #include "libpandabase/macros.h" 19 20 namespace panda::ecmascript { GetElementSize(DataViewType type)21uint32_t JSDataView::GetElementSize(DataViewType type) 22 { 23 uint32_t size; 24 switch (type) { 25 case DataViewType::INT8: 26 case DataViewType::UINT8: 27 case DataViewType::UINT8_CLAMPED: 28 size = 1; 29 break; 30 case DataViewType::INT16: 31 case DataViewType::UINT16: 32 size = 2; // 2 means the length 33 break; 34 case DataViewType::INT32: 35 case DataViewType::UINT32: 36 case DataViewType::FLOAT32: 37 size = 4; // 4 means the length 38 break; 39 case DataViewType::FLOAT64: 40 case DataViewType::BIGINT64: 41 case DataViewType::BIGUINT64: 42 size = 8; // 8 means the length 43 break; 44 default: 45 LOG_ECMA(FATAL) << "this branch is unreachable"; 46 UNREACHABLE(); 47 } 48 return size; 49 } 50 } // namespace panda::ecmascript