/* * Copyright 2021 Google LLC * * 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. */ #ifndef DISTRIBUTED_POINT_FUNCTIONS_DPF_UTIL_STATUS_MACROS_H_ #define DISTRIBUTED_POINT_FUNCTIONS_DPF_UTIL_STATUS_MACROS_H_ // Helper macro that checks if the right hand side (rexpression) evaluates to a // StatusOr with Status OK, and if so assigns the value to the value on the left // hand side (lhs), otherwise returns the error status. Example: // DPF_ASSIGN_OR_RETURN(lhs, rexpression); #define DPF_ASSIGN_OR_RETURN(lhs, rexpr) … // Internal helper. #define DPF_ASSIGN_OR_RETURN_IMPL_(statusor, lhs, rexpr) … // Internal helper for concatenating macro values. #define DPF_STATUS_MACROS_IMPL_CONCAT_INNER_(x, y) … #define DPF_STATUS_MACROS_IMPL_CONCAT_(x, y) … #define DPF_RETURN_IF_ERROR(expr) … #define DPF_RETURN_IF_ERROR_IMPL_(status, expr) … #endif // DISTRIBUTED_POINT_FUNCTIONS_DPF_UTIL_STATUS_MACROS_H_
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