1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
|
// Copyright 2020 The Abseil Authors.
//
// 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
//
// https://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.
#include "absl/status/statusor.h"
#include <cstdlib>
#include <utility>
#include "absl/base/call_once.h"
#include "absl/base/config.h"
#include "absl/base/internal/raw_logging.h"
#include "absl/base/nullability.h"
#include "absl/status/internal/statusor_internal.h"
#include "absl/status/status.h"
#include "absl/strings/str_cat.h"
namespace absl {
ABSL_NAMESPACE_BEGIN
BadStatusOrAccess::BadStatusOrAccess(absl::Status status)
: status_(std::move(status)) {}
BadStatusOrAccess::BadStatusOrAccess(const BadStatusOrAccess& other)
: status_(other.status_) {}
BadStatusOrAccess& BadStatusOrAccess::operator=(
const BadStatusOrAccess& other) {
// Ensure assignment is correct regardless of whether this->InitWhat() has
// already been called.
other.InitWhat();
status_ = other.status_;
what_ = other.what_;
return *this;
}
BadStatusOrAccess& BadStatusOrAccess::operator=(BadStatusOrAccess&& other) {
// Ensure assignment is correct regardless of whether this->InitWhat() has
// already been called.
other.InitWhat();
status_ = std::move(other.status_);
what_ = std::move(other.what_);
return *this;
}
BadStatusOrAccess::BadStatusOrAccess(BadStatusOrAccess&& other)
: status_(std::move(other.status_)) {}
absl::Nonnull<const char*> BadStatusOrAccess::what() const noexcept {
InitWhat();
return what_.c_str();
}
const absl::Status& BadStatusOrAccess::status() const { return status_; }
void BadStatusOrAccess::InitWhat() const {
absl::call_once(init_what_, [this] {
what_ = absl::StrCat("Bad StatusOr access: ", status_.ToString());
});
}
namespace internal_statusor {
void Helper::HandleInvalidStatusCtorArg(absl::Nonnull<absl::Status*> status) {
const char* kMessage =
"An OK status is not a valid constructor argument to StatusOr<T>";
#ifdef NDEBUG
ABSL_INTERNAL_LOG(ERROR, kMessage);
#else
ABSL_INTERNAL_LOG(FATAL, kMessage);
#endif
// In optimized builds, we will fall back to InternalError.
*status = absl::InternalError(kMessage);
}
void Helper::Crash(const absl::Status& status) {
ABSL_INTERNAL_LOG(
FATAL,
absl::StrCat("Attempting to fetch value instead of handling error ",
status.ToString()));
}
void ThrowBadStatusOrAccess(absl::Status status) {
#ifdef ABSL_HAVE_EXCEPTIONS
throw absl::BadStatusOrAccess(std::move(status));
#else
ABSL_INTERNAL_LOG(
FATAL,
absl::StrCat("Attempting to fetch value instead of handling error ",
status.ToString()));
std::abort();
#endif
}
} // namespace internal_statusor
ABSL_NAMESPACE_END
} // namespace absl
|
