104 lines
3.0 KiB
C++
104 lines
3.0 KiB
C++
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// Copyright 2020 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/status/statusor.h"
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#include <cstdlib>
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#include <utility>
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#include "absl/base/call_once.h"
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#include "absl/base/internal/raw_logging.h"
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#include "absl/status/status.h"
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#include "absl/strings/str_cat.h"
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namespace absl {
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ABSL_NAMESPACE_BEGIN
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BadStatusOrAccess::BadStatusOrAccess(absl::Status status)
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: status_(std::move(status)) {}
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BadStatusOrAccess::BadStatusOrAccess(const BadStatusOrAccess& other)
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: status_(other.status_) {}
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BadStatusOrAccess& BadStatusOrAccess::operator=(
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const BadStatusOrAccess& other) {
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// Ensure assignment is correct regardless of whether this->InitWhat() has
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// already been called.
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other.InitWhat();
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status_ = other.status_;
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what_ = other.what_;
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return *this;
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}
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BadStatusOrAccess& BadStatusOrAccess::operator=(BadStatusOrAccess&& other) {
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// Ensure assignment is correct regardless of whether this->InitWhat() has
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// already been called.
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other.InitWhat();
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status_ = std::move(other.status_);
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what_ = std::move(other.what_);
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return *this;
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}
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BadStatusOrAccess::BadStatusOrAccess(BadStatusOrAccess&& other)
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: status_(std::move(other.status_)) {}
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const char* BadStatusOrAccess::what() const noexcept {
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InitWhat();
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return what_.c_str();
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}
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const absl::Status& BadStatusOrAccess::status() const { return status_; }
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void BadStatusOrAccess::InitWhat() const {
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absl::call_once(init_what_, [this] {
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what_ = absl::StrCat("Bad StatusOr access: ", status_.ToString());
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});
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}
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namespace internal_statusor {
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void Helper::HandleInvalidStatusCtorArg(absl::Status* status) {
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const char* kMessage =
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"An OK status is not a valid constructor argument to StatusOr<T>";
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#ifdef NDEBUG
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ABSL_INTERNAL_LOG(ERROR, kMessage);
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#else
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ABSL_INTERNAL_LOG(FATAL, kMessage);
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#endif
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// In optimized builds, we will fall back to InternalError.
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*status = absl::InternalError(kMessage);
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}
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void Helper::Crash(const absl::Status& status) {
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ABSL_INTERNAL_LOG(
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FATAL,
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absl::StrCat("Attempting to fetch value instead of handling error ",
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status.ToString()));
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}
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void ThrowBadStatusOrAccess(absl::Status status) {
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#ifdef ABSL_HAVE_EXCEPTIONS
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throw absl::BadStatusOrAccess(std::move(status));
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#else
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ABSL_INTERNAL_LOG(
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FATAL,
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absl::StrCat("Attempting to fetch value instead of handling error ",
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status.ToString()));
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std::abort();
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#endif
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}
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} // namespace internal_statusor
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ABSL_NAMESPACE_END
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} // namespace absl
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