1*ec63e07aSXin Li // Copyright 2019 Google LLC 2*ec63e07aSXin Li // 3*ec63e07aSXin Li // Licensed under the Apache License, Version 2.0 (the "License"); 4*ec63e07aSXin Li // you may not use this file except in compliance with the License. 5*ec63e07aSXin Li // You may obtain a copy of the License at 6*ec63e07aSXin Li // 7*ec63e07aSXin Li // https://www.apache.org/licenses/LICENSE-2.0 8*ec63e07aSXin Li // 9*ec63e07aSXin Li // Unless required by applicable law or agreed to in writing, software 10*ec63e07aSXin Li // distributed under the License is distributed on an "AS IS" BASIS, 11*ec63e07aSXin Li // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12*ec63e07aSXin Li // See the License for the specific language governing permissions and 13*ec63e07aSXin Li // limitations under the License. 14*ec63e07aSXin Li 15*ec63e07aSXin Li // This file is a custom fork of util/task/status_macros.h. This will become 16*ec63e07aSXin Li // obsolete and will be replaced once Abseil releases absl::Status. 17*ec63e07aSXin Li 18*ec63e07aSXin Li #ifndef THIRD_PARTY_SAPI_UTIL_STATUS_MACROS_H_ 19*ec63e07aSXin Li #define THIRD_PARTY_SAPI_UTIL_STATUS_MACROS_H_ 20*ec63e07aSXin Li 21*ec63e07aSXin Li #include <utility> 22*ec63e07aSXin Li 23*ec63e07aSXin Li #include "absl/base/optimization.h" 24*ec63e07aSXin Li #include "absl/status/status.h" 25*ec63e07aSXin Li 26*ec63e07aSXin Li // Internal helper for concatenating macro values. 27*ec63e07aSXin Li #define SAPI_MACROS_IMPL_CONCAT_INNER_(x, y) x##y 28*ec63e07aSXin Li #define SAPI_MACROS_IMPL_CONCAT(x, y) SAPI_MACROS_IMPL_CONCAT_INNER_(x, y) 29*ec63e07aSXin Li 30*ec63e07aSXin Li #define SAPI_RETURN_IF_ERROR(expr) \ 31*ec63e07aSXin Li SAPI_RETURN_IF_ERROR_IMPL(SAPI_MACROS_IMPL_CONCAT(_sapi_status, __LINE__), \ 32*ec63e07aSXin Li expr) 33*ec63e07aSXin Li 34*ec63e07aSXin Li #define SAPI_RETURN_IF_ERROR_IMPL(status, expr) \ 35*ec63e07aSXin Li do { \ 36*ec63e07aSXin Li const auto status = (expr); \ 37*ec63e07aSXin Li if (ABSL_PREDICT_FALSE(!status.ok())) { \ 38*ec63e07aSXin Li return status; \ 39*ec63e07aSXin Li } \ 40*ec63e07aSXin Li } while (0) 41*ec63e07aSXin Li 42*ec63e07aSXin Li #define SAPI_ASSIGN_OR_RETURN(lhs, rexpr) \ 43*ec63e07aSXin Li SAPI_ASSIGN_OR_RETURN_IMPL( \ 44*ec63e07aSXin Li SAPI_MACROS_IMPL_CONCAT(_sapi_statusor, __LINE__), lhs, rexpr) 45*ec63e07aSXin Li 46*ec63e07aSXin Li #define SAPI_ASSIGN_OR_RETURN_IMPL(statusor, lhs, rexpr) \ 47*ec63e07aSXin Li auto statusor = (rexpr); \ 48*ec63e07aSXin Li if (ABSL_PREDICT_FALSE(!statusor.ok())) { \ 49*ec63e07aSXin Li return statusor.status(); \ 50*ec63e07aSXin Li } \ 51*ec63e07aSXin Li lhs = std::move(statusor).value() 52*ec63e07aSXin Li 53*ec63e07aSXin Li #endif // THIRD_PARTY_SAPI_UTIL_STATUS_MACROS_H_ 54