mirror of
https://github.com/abseil/abseil-cpp.git
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62 lines
1.6 KiB
C++
62 lines
1.6 KiB
C++
// Copyright 2025 The Abseil Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// https://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "absl/base/casts.h"
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#include <cstdlib>
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#include <string>
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#include "absl/base/config.h"
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#include "absl/base/internal/raw_logging.h"
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#ifdef ABSL_INTERNAL_HAS_CXA_DEMANGLE
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#include <cxxabi.h>
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#endif
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namespace absl {
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ABSL_NAMESPACE_BEGIN
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namespace base_internal {
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namespace {
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std::string DemangleCppString(const char* mangled) {
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std::string out;
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int status = 0;
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char* demangled = nullptr;
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#ifdef ABSL_INTERNAL_HAS_CXA_DEMANGLE
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demangled = abi::__cxa_demangle(mangled, nullptr, nullptr, &status);
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#endif
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if (status == 0 && demangled != nullptr) {
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out.append(demangled);
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free(demangled);
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} else {
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out.append(mangled);
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}
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return out;
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}
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} // namespace
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void BadDownCastCrash(const char* source_type, const char* target_type) {
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ABSL_RAW_LOG(FATAL, "down cast from %s to %s failed",
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DemangleCppString(source_type).c_str(),
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DemangleCppString(target_type).c_str());
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}
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} // namespace base_internal
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ABSL_NAMESPACE_END
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} // namespace absl
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