1 // Copyright 2017 The Abseil 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 // https://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 #include "absl/types/bad_variant_access.h" 16 17 #ifndef ABSL_USES_STD_VARIANT 18 19 #include <cstdlib> 20 #include <stdexcept> 21 22 #include "absl/base/config.h" 23 #include "absl/base/internal/raw_logging.h" 24 25 namespace absl { 26 ABSL_NAMESPACE_BEGIN 27 28 ////////////////////////// 29 // [variant.bad.access] // 30 ////////////////////////// 31 32 bad_variant_access::~bad_variant_access() = default; 33 what() const34const char* bad_variant_access::what() const noexcept { 35 return "Bad variant access"; 36 } 37 38 namespace variant_internal { 39 ThrowBadVariantAccess()40void ThrowBadVariantAccess() { 41 #ifdef ABSL_HAVE_EXCEPTIONS 42 throw bad_variant_access(); 43 #else 44 ABSL_RAW_LOG(FATAL, "Bad variant access"); 45 abort(); // TODO(calabrese) Remove once RAW_LOG FATAL is noreturn. 46 #endif 47 } 48 Rethrow()49void Rethrow() { 50 #ifdef ABSL_HAVE_EXCEPTIONS 51 throw; 52 #else 53 ABSL_RAW_LOG(FATAL, 54 "Internal error in absl::variant implementation. Attempted to " 55 "rethrow an exception when building with exceptions disabled."); 56 abort(); // TODO(calabrese) Remove once RAW_LOG FATAL is noreturn. 57 #endif 58 } 59 60 } // namespace variant_internal 61 ABSL_NAMESPACE_END 62 } // namespace absl 63 64 #endif // ABSL_USES_STD_VARIANT 65