1 // Copyright 2021 The Dawn Authors 2 // 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 #ifndef DAWNWIRE_WIRERESULT_H_ 16 #define DAWNWIRE_WIRERESULT_H_ 17 18 #include "common/Compiler.h" 19 20 namespace dawn_wire { 21 22 enum class DAWN_NO_DISCARD WireResult { 23 Success, 24 FatalError, 25 }; 26 27 // Macro to simplify error handling, similar to DAWN_TRY but for WireResult. 28 #define WIRE_TRY(EXPR) \ 29 do { \ 30 WireResult exprResult = EXPR; \ 31 if (DAWN_UNLIKELY(exprResult != WireResult::Success)) { \ 32 return exprResult; \ 33 } \ 34 } while (0) 35 36 } // namespace dawn_wire 37 38 #endif // DAWNWIRE_WIRERESULT_H_ 39