Repo created
This commit is contained in:
parent
81b91f4139
commit
f8c34fa5ee
22732 changed files with 4815320 additions and 2 deletions
484
TMessagesProj/jni/voip/webrtc/absl/log/internal/check_op.h
Normal file
484
TMessagesProj/jni/voip/webrtc/absl/log/internal/check_op.h
Normal file
|
|
@ -0,0 +1,484 @@
|
|||
// Copyright 2022 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.
|
||||
//
|
||||
// -----------------------------------------------------------------------------
|
||||
// File: log/internal/check_op.h
|
||||
// -----------------------------------------------------------------------------
|
||||
//
|
||||
// This file declares helpers routines and macros used to implement `CHECK`
|
||||
// macros.
|
||||
|
||||
#ifndef ABSL_LOG_INTERNAL_CHECK_OP_H_
|
||||
#define ABSL_LOG_INTERNAL_CHECK_OP_H_
|
||||
|
||||
#include <stdint.h>
|
||||
|
||||
#include <cstddef>
|
||||
#include <ostream>
|
||||
#include <sstream>
|
||||
#include <string>
|
||||
#include <type_traits>
|
||||
#include <utility>
|
||||
|
||||
#include "absl/base/attributes.h"
|
||||
#include "absl/base/casts.h"
|
||||
#include "absl/base/config.h"
|
||||
#include "absl/base/nullability.h"
|
||||
#include "absl/base/optimization.h"
|
||||
#include "absl/log/internal/nullguard.h"
|
||||
#include "absl/log/internal/nullstream.h"
|
||||
#include "absl/log/internal/strip.h"
|
||||
#include "absl/strings/has_absl_stringify.h"
|
||||
#include "absl/strings/string_view.h"
|
||||
|
||||
// `ABSL_LOG_INTERNAL_STRIP_STRING_LITERAL` wraps string literals that
|
||||
// should be stripped when `ABSL_MIN_LOG_LEVEL` exceeds `kFatal`.
|
||||
#ifdef ABSL_MIN_LOG_LEVEL
|
||||
#define ABSL_LOG_INTERNAL_STRIP_STRING_LITERAL(literal) \
|
||||
(::absl::LogSeverity::kFatal >= \
|
||||
static_cast<::absl::LogSeverity>(ABSL_MIN_LOG_LEVEL) \
|
||||
? (literal) \
|
||||
: "")
|
||||
#else
|
||||
#define ABSL_LOG_INTERNAL_STRIP_STRING_LITERAL(literal) (literal)
|
||||
#endif
|
||||
|
||||
#ifdef NDEBUG
|
||||
// `NDEBUG` is defined, so `DCHECK_EQ(x, y)` and so on do nothing. However, we
|
||||
// still want the compiler to parse `x` and `y`, because we don't want to lose
|
||||
// potentially useful errors and warnings.
|
||||
#define ABSL_LOG_INTERNAL_DCHECK_NOP(x, y) \
|
||||
while (false && ((void)(x), (void)(y), 0)) \
|
||||
::absl::log_internal::NullStream().InternalStream()
|
||||
#endif
|
||||
|
||||
#define ABSL_LOG_INTERNAL_CHECK_OP(name, op, val1, val1_text, val2, val2_text) \
|
||||
while (absl::Nullable<const char*> absl_log_internal_check_op_result \
|
||||
[[maybe_unused]] = \
|
||||
::absl::log_internal::name##Impl( \
|
||||
::absl::log_internal::GetReferenceableValue(val1), \
|
||||
::absl::log_internal::GetReferenceableValue(val2), \
|
||||
ABSL_LOG_INTERNAL_STRIP_STRING_LITERAL( \
|
||||
val1_text " " #op " " val2_text))) \
|
||||
ABSL_LOG_INTERNAL_CONDITION_FATAL(STATELESS, true) \
|
||||
ABSL_LOG_INTERNAL_CHECK(absl::implicit_cast<absl::Nonnull<const char*>>( \
|
||||
absl_log_internal_check_op_result)) \
|
||||
.InternalStream()
|
||||
#define ABSL_LOG_INTERNAL_QCHECK_OP(name, op, val1, val1_text, val2, \
|
||||
val2_text) \
|
||||
while (absl::Nullable<const char*> absl_log_internal_qcheck_op_result = \
|
||||
::absl::log_internal::name##Impl( \
|
||||
::absl::log_internal::GetReferenceableValue(val1), \
|
||||
::absl::log_internal::GetReferenceableValue(val2), \
|
||||
ABSL_LOG_INTERNAL_STRIP_STRING_LITERAL( \
|
||||
val1_text " " #op " " val2_text))) \
|
||||
ABSL_LOG_INTERNAL_CONDITION_QFATAL(STATELESS, true) \
|
||||
ABSL_LOG_INTERNAL_QCHECK(absl::implicit_cast<absl::Nonnull<const char*>>( \
|
||||
absl_log_internal_qcheck_op_result)) \
|
||||
.InternalStream()
|
||||
#define ABSL_LOG_INTERNAL_CHECK_STROP(func, op, expected, s1, s1_text, s2, \
|
||||
s2_text) \
|
||||
while (absl::Nullable<const char*> absl_log_internal_check_strop_result = \
|
||||
::absl::log_internal::Check##func##expected##Impl( \
|
||||
(s1), (s2), \
|
||||
ABSL_LOG_INTERNAL_STRIP_STRING_LITERAL(s1_text " " #op \
|
||||
" " s2_text))) \
|
||||
ABSL_LOG_INTERNAL_CONDITION_FATAL(STATELESS, true) \
|
||||
ABSL_LOG_INTERNAL_CHECK(absl::implicit_cast<absl::Nonnull<const char*>>( \
|
||||
absl_log_internal_check_strop_result)) \
|
||||
.InternalStream()
|
||||
#define ABSL_LOG_INTERNAL_QCHECK_STROP(func, op, expected, s1, s1_text, s2, \
|
||||
s2_text) \
|
||||
while (absl::Nullable<const char*> absl_log_internal_qcheck_strop_result = \
|
||||
::absl::log_internal::Check##func##expected##Impl( \
|
||||
(s1), (s2), \
|
||||
ABSL_LOG_INTERNAL_STRIP_STRING_LITERAL(s1_text " " #op \
|
||||
" " s2_text))) \
|
||||
ABSL_LOG_INTERNAL_CONDITION_QFATAL(STATELESS, true) \
|
||||
ABSL_LOG_INTERNAL_QCHECK(absl::implicit_cast<absl::Nonnull<const char*>>( \
|
||||
absl_log_internal_qcheck_strop_result)) \
|
||||
.InternalStream()
|
||||
|
||||
// This one is tricky:
|
||||
// * We must evaluate `val` exactly once, yet we need to do two things with it:
|
||||
// evaluate `.ok()` and (sometimes) `.ToString()`.
|
||||
// * `val` might be an `absl::Status` or some `absl::StatusOr<T>`.
|
||||
// * `val` might be e.g. `ATemporary().GetStatus()`, which may return a
|
||||
// reference to a member of `ATemporary` that is only valid until the end of
|
||||
// the full expression.
|
||||
// * We don't want this file to depend on `absl::Status` `#include`s or linkage,
|
||||
// nor do we want to move the definition to status and introduce a dependency
|
||||
// in the other direction. We can be assured that callers must already have a
|
||||
// `Status` and the necessary `#include`s and linkage.
|
||||
// * Callsites should be small and fast (at least when `val.ok()`): one branch,
|
||||
// minimal stack footprint.
|
||||
// * In particular, the string concat stuff should be out-of-line and emitted
|
||||
// in only one TU to save linker input size
|
||||
// * We want the `val.ok()` check inline so static analyzers and optimizers can
|
||||
// see it.
|
||||
// * As usual, no braces so we can stream into the expansion with `operator<<`.
|
||||
// * Also as usual, it must expand to a single (partial) statement with no
|
||||
// ambiguous-else problems.
|
||||
// * When stripped by `ABSL_MIN_LOG_LEVEL`, we must discard the `<expr> is OK`
|
||||
// string literal and abort without doing any streaming. We don't need to
|
||||
// strip the call to stringify the non-ok `Status` as long as we don't log it;
|
||||
// dropping the `Status`'s message text is out of scope.
|
||||
#define ABSL_LOG_INTERNAL_CHECK_OK(val, val_text) \
|
||||
for (::std::pair<absl::Nonnull<const ::absl::Status*>, \
|
||||
absl::Nullable<const char*>> \
|
||||
absl_log_internal_check_ok_goo; \
|
||||
absl_log_internal_check_ok_goo.first = \
|
||||
::absl::log_internal::AsStatus(val), \
|
||||
absl_log_internal_check_ok_goo.second = \
|
||||
ABSL_PREDICT_TRUE(absl_log_internal_check_ok_goo.first->ok()) \
|
||||
? nullptr \
|
||||
: ::absl::status_internal::MakeCheckFailString( \
|
||||
absl_log_internal_check_ok_goo.first, \
|
||||
ABSL_LOG_INTERNAL_STRIP_STRING_LITERAL(val_text \
|
||||
" is OK")), \
|
||||
!ABSL_PREDICT_TRUE(absl_log_internal_check_ok_goo.first->ok());) \
|
||||
ABSL_LOG_INTERNAL_CONDITION_FATAL(STATELESS, true) \
|
||||
ABSL_LOG_INTERNAL_CHECK(absl::implicit_cast<absl::Nonnull<const char*>>( \
|
||||
absl_log_internal_check_ok_goo.second)) \
|
||||
.InternalStream()
|
||||
#define ABSL_LOG_INTERNAL_QCHECK_OK(val, val_text) \
|
||||
for (::std::pair<absl::Nonnull<const ::absl::Status*>, \
|
||||
absl::Nullable<const char*>> \
|
||||
absl_log_internal_qcheck_ok_goo; \
|
||||
absl_log_internal_qcheck_ok_goo.first = \
|
||||
::absl::log_internal::AsStatus(val), \
|
||||
absl_log_internal_qcheck_ok_goo.second = \
|
||||
ABSL_PREDICT_TRUE(absl_log_internal_qcheck_ok_goo.first->ok()) \
|
||||
? nullptr \
|
||||
: ::absl::status_internal::MakeCheckFailString( \
|
||||
absl_log_internal_qcheck_ok_goo.first, \
|
||||
ABSL_LOG_INTERNAL_STRIP_STRING_LITERAL(val_text \
|
||||
" is OK")), \
|
||||
!ABSL_PREDICT_TRUE(absl_log_internal_qcheck_ok_goo.first->ok());) \
|
||||
ABSL_LOG_INTERNAL_CONDITION_QFATAL(STATELESS, true) \
|
||||
ABSL_LOG_INTERNAL_QCHECK(absl::implicit_cast<absl::Nonnull<const char*>>( \
|
||||
absl_log_internal_qcheck_ok_goo.second)) \
|
||||
.InternalStream()
|
||||
|
||||
namespace absl {
|
||||
ABSL_NAMESPACE_BEGIN
|
||||
|
||||
class Status;
|
||||
template <typename T>
|
||||
class StatusOr;
|
||||
|
||||
namespace status_internal {
|
||||
ABSL_ATTRIBUTE_PURE_FUNCTION absl::Nonnull<const char*> MakeCheckFailString(
|
||||
absl::Nonnull<const absl::Status*> status,
|
||||
absl::Nonnull<const char*> prefix);
|
||||
} // namespace status_internal
|
||||
|
||||
namespace log_internal {
|
||||
|
||||
// Convert a Status or a StatusOr to its underlying status value.
|
||||
//
|
||||
// (This implementation does not require a dep on absl::Status to work.)
|
||||
inline absl::Nonnull<const absl::Status*> AsStatus(const absl::Status& s) {
|
||||
return &s;
|
||||
}
|
||||
template <typename T>
|
||||
absl::Nonnull<const absl::Status*> AsStatus(const absl::StatusOr<T>& s) {
|
||||
return &s.status();
|
||||
}
|
||||
|
||||
// A helper class for formatting `expr (V1 vs. V2)` in a `CHECK_XX` statement.
|
||||
// See `MakeCheckOpString` for sample usage.
|
||||
class CheckOpMessageBuilder final {
|
||||
public:
|
||||
// Inserts `exprtext` and ` (` to the stream.
|
||||
explicit CheckOpMessageBuilder(absl::Nonnull<const char*> exprtext);
|
||||
~CheckOpMessageBuilder() = default;
|
||||
// For inserting the first variable.
|
||||
std::ostream& ForVar1() { return stream_; }
|
||||
// For inserting the second variable (adds an intermediate ` vs. `).
|
||||
std::ostream& ForVar2();
|
||||
// Get the result (inserts the closing `)`).
|
||||
absl::Nonnull<const char*> NewString();
|
||||
|
||||
private:
|
||||
std::ostringstream stream_;
|
||||
};
|
||||
|
||||
// This formats a value for a failing `CHECK_XX` statement. Ordinarily, it uses
|
||||
// the definition for `operator<<`, with a few special cases below.
|
||||
template <typename T>
|
||||
inline void MakeCheckOpValueString(std::ostream& os, const T& v) {
|
||||
os << log_internal::NullGuard<T>::Guard(v);
|
||||
}
|
||||
|
||||
// Overloads for char types provide readable values for unprintable characters.
|
||||
void MakeCheckOpValueString(std::ostream& os, char v);
|
||||
void MakeCheckOpValueString(std::ostream& os, signed char v);
|
||||
void MakeCheckOpValueString(std::ostream& os, unsigned char v);
|
||||
void MakeCheckOpValueString(std::ostream& os, const void* p);
|
||||
|
||||
namespace detect_specialization {
|
||||
|
||||
// MakeCheckOpString is being specialized for every T and U pair that is being
|
||||
// passed to the CHECK_op macros. However, there is a lot of redundancy in these
|
||||
// specializations that creates unnecessary library and binary bloat.
|
||||
// The number of instantiations tends to be O(n^2) because we have two
|
||||
// independent inputs. This technique works by reducing `n`.
|
||||
//
|
||||
// Most user-defined types being passed to CHECK_op end up being printed as a
|
||||
// builtin type. For example, enums tend to be implicitly converted to its
|
||||
// underlying type when calling operator<<, and pointers are printed with the
|
||||
// `const void*` overload.
|
||||
// To reduce the number of instantiations we coerce these values before calling
|
||||
// MakeCheckOpString instead of inside it.
|
||||
//
|
||||
// To detect if this coercion is needed, we duplicate all the relevant
|
||||
// operator<< overloads as specified in the standard, just in a different
|
||||
// namespace. If the call to `stream << value` becomes ambiguous, it means that
|
||||
// one of these overloads is the one selected by overload resolution. We then
|
||||
// do overload resolution again just with our overload set to see which one gets
|
||||
// selected. That tells us which type to coerce to.
|
||||
// If the augmented call was not ambiguous, it means that none of these were
|
||||
// selected and we can't coerce the input.
|
||||
//
|
||||
// As a secondary step to reduce code duplication, we promote integral types to
|
||||
// their 64-bit variant. This does not change the printed value, but reduces the
|
||||
// number of instantiations even further. Promoting an integer is very cheap at
|
||||
// the call site.
|
||||
int64_t operator<<(std::ostream&, short value); // NOLINT
|
||||
int64_t operator<<(std::ostream&, unsigned short value); // NOLINT
|
||||
int64_t operator<<(std::ostream&, int value);
|
||||
int64_t operator<<(std::ostream&, unsigned int value);
|
||||
int64_t operator<<(std::ostream&, long value); // NOLINT
|
||||
uint64_t operator<<(std::ostream&, unsigned long value); // NOLINT
|
||||
int64_t operator<<(std::ostream&, long long value); // NOLINT
|
||||
uint64_t operator<<(std::ostream&, unsigned long long value); // NOLINT
|
||||
float operator<<(std::ostream&, float value);
|
||||
double operator<<(std::ostream&, double value);
|
||||
long double operator<<(std::ostream&, long double value);
|
||||
bool operator<<(std::ostream&, bool value);
|
||||
const void* operator<<(std::ostream&, const void* value);
|
||||
const void* operator<<(std::ostream&, std::nullptr_t);
|
||||
|
||||
// These `char` overloads are specified like this in the standard, so we have to
|
||||
// write them exactly the same to ensure the call is ambiguous.
|
||||
// If we wrote it in a different way (eg taking std::ostream instead of the
|
||||
// template) then one call might have a higher rank than the other and it would
|
||||
// not be ambiguous.
|
||||
template <typename Traits>
|
||||
char operator<<(std::basic_ostream<char, Traits>&, char);
|
||||
template <typename Traits>
|
||||
signed char operator<<(std::basic_ostream<char, Traits>&, signed char);
|
||||
template <typename Traits>
|
||||
unsigned char operator<<(std::basic_ostream<char, Traits>&, unsigned char);
|
||||
template <typename Traits>
|
||||
const char* operator<<(std::basic_ostream<char, Traits>&, const char*);
|
||||
template <typename Traits>
|
||||
const signed char* operator<<(std::basic_ostream<char, Traits>&,
|
||||
const signed char*);
|
||||
template <typename Traits>
|
||||
const unsigned char* operator<<(std::basic_ostream<char, Traits>&,
|
||||
const unsigned char*);
|
||||
|
||||
// This overload triggers when the call is not ambiguous.
|
||||
// It means that T is being printed with some overload not on this list.
|
||||
// We keep the value as `const T&`.
|
||||
template <typename T, typename = decltype(std::declval<std::ostream&>()
|
||||
<< std::declval<const T&>())>
|
||||
const T& Detect(int);
|
||||
|
||||
// This overload triggers when the call is ambiguous.
|
||||
// It means that T is either one from this list or printed as one from this
|
||||
// list. Eg an enum that decays to `int` for printing.
|
||||
// We ask the overload set to give us the type we want to convert it to.
|
||||
template <typename T>
|
||||
decltype(detect_specialization::operator<<(std::declval<std::ostream&>(),
|
||||
std::declval<const T&>()))
|
||||
Detect(char);
|
||||
|
||||
// A sink for AbslStringify which redirects everything to a std::ostream.
|
||||
class StringifySink {
|
||||
public:
|
||||
explicit StringifySink(std::ostream& os ABSL_ATTRIBUTE_LIFETIME_BOUND);
|
||||
|
||||
void Append(absl::string_view text);
|
||||
void Append(size_t length, char ch);
|
||||
friend void AbslFormatFlush(StringifySink* sink, absl::string_view text);
|
||||
|
||||
private:
|
||||
std::ostream& os_;
|
||||
};
|
||||
|
||||
// Wraps a type implementing AbslStringify, and implements operator<<.
|
||||
template <typename T>
|
||||
class StringifyToStreamWrapper {
|
||||
public:
|
||||
explicit StringifyToStreamWrapper(const T& v ABSL_ATTRIBUTE_LIFETIME_BOUND)
|
||||
: v_(v) {}
|
||||
|
||||
friend std::ostream& operator<<(std::ostream& os,
|
||||
const StringifyToStreamWrapper& wrapper) {
|
||||
StringifySink sink(os);
|
||||
AbslStringify(sink, wrapper.v_);
|
||||
return os;
|
||||
}
|
||||
|
||||
private:
|
||||
const T& v_;
|
||||
};
|
||||
|
||||
// This overload triggers when T implements AbslStringify.
|
||||
// StringifyToStreamWrapper is used to allow MakeCheckOpString to use
|
||||
// operator<<.
|
||||
template <typename T>
|
||||
std::enable_if_t<HasAbslStringify<T>::value,
|
||||
StringifyToStreamWrapper<T>>
|
||||
Detect(...); // Ellipsis has lowest preference when int passed.
|
||||
} // namespace detect_specialization
|
||||
|
||||
template <typename T>
|
||||
using CheckOpStreamType = decltype(detect_specialization::Detect<T>(0));
|
||||
|
||||
// Build the error message string. Specify no inlining for code size.
|
||||
template <typename T1, typename T2>
|
||||
ABSL_ATTRIBUTE_RETURNS_NONNULL absl::Nonnull<const char*> MakeCheckOpString(
|
||||
T1 v1, T2 v2, absl::Nonnull<const char*> exprtext) ABSL_ATTRIBUTE_NOINLINE;
|
||||
|
||||
template <typename T1, typename T2>
|
||||
absl::Nonnull<const char*> MakeCheckOpString(
|
||||
T1 v1, T2 v2, absl::Nonnull<const char*> exprtext) {
|
||||
CheckOpMessageBuilder comb(exprtext);
|
||||
MakeCheckOpValueString(comb.ForVar1(), v1);
|
||||
MakeCheckOpValueString(comb.ForVar2(), v2);
|
||||
return comb.NewString();
|
||||
}
|
||||
|
||||
// Add a few commonly used instantiations as extern to reduce size of objects
|
||||
// files.
|
||||
#define ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(x) \
|
||||
extern template absl::Nonnull<const char*> MakeCheckOpString( \
|
||||
x, x, absl::Nonnull<const char*>)
|
||||
ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(bool);
|
||||
ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(int64_t);
|
||||
ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(uint64_t);
|
||||
ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(float);
|
||||
ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(double);
|
||||
ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(char);
|
||||
ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(unsigned char);
|
||||
ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const std::string&);
|
||||
ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const absl::string_view&);
|
||||
ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const char*);
|
||||
ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const signed char*);
|
||||
ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const unsigned char*);
|
||||
ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN(const void*);
|
||||
#undef ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING_EXTERN
|
||||
|
||||
// `ABSL_LOG_INTERNAL_CHECK_OP_IMPL_RESULT` skips formatting the Check_OP result
|
||||
// string iff `ABSL_MIN_LOG_LEVEL` exceeds `kFatal`, instead returning an empty
|
||||
// string.
|
||||
#ifdef ABSL_MIN_LOG_LEVEL
|
||||
#define ABSL_LOG_INTERNAL_CHECK_OP_IMPL_RESULT(U1, U2, v1, v2, exprtext) \
|
||||
((::absl::LogSeverity::kFatal >= \
|
||||
static_cast<::absl::LogSeverity>(ABSL_MIN_LOG_LEVEL)) \
|
||||
? MakeCheckOpString<U1, U2>(v1, v2, exprtext) \
|
||||
: "")
|
||||
#else
|
||||
#define ABSL_LOG_INTERNAL_CHECK_OP_IMPL_RESULT(U1, U2, v1, v2, exprtext) \
|
||||
MakeCheckOpString<U1, U2>(v1, v2, exprtext)
|
||||
#endif
|
||||
|
||||
// Helper functions for `ABSL_LOG_INTERNAL_CHECK_OP` macro family. The
|
||||
// `(int, int)` override works around the issue that the compiler will not
|
||||
// instantiate the template version of the function on values of unnamed enum
|
||||
// type.
|
||||
#define ABSL_LOG_INTERNAL_CHECK_OP_IMPL(name, op) \
|
||||
template <typename T1, typename T2> \
|
||||
inline constexpr absl::Nullable<const char*> name##Impl( \
|
||||
const T1& v1, const T2& v2, absl::Nonnull<const char*> exprtext) { \
|
||||
using U1 = CheckOpStreamType<T1>; \
|
||||
using U2 = CheckOpStreamType<T2>; \
|
||||
return ABSL_PREDICT_TRUE(v1 op v2) \
|
||||
? nullptr \
|
||||
: ABSL_LOG_INTERNAL_CHECK_OP_IMPL_RESULT(U1, U2, U1(v1), \
|
||||
U2(v2), exprtext); \
|
||||
} \
|
||||
inline constexpr absl::Nullable<const char*> name##Impl( \
|
||||
int v1, int v2, absl::Nonnull<const char*> exprtext) { \
|
||||
return name##Impl<int, int>(v1, v2, exprtext); \
|
||||
}
|
||||
|
||||
ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_EQ, ==)
|
||||
ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_NE, !=)
|
||||
ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LE, <=)
|
||||
ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_LT, <)
|
||||
ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GE, >=)
|
||||
ABSL_LOG_INTERNAL_CHECK_OP_IMPL(Check_GT, >)
|
||||
#undef ABSL_LOG_INTERNAL_CHECK_OP_IMPL_RESULT
|
||||
#undef ABSL_LOG_INTERNAL_CHECK_OP_IMPL
|
||||
|
||||
absl::Nullable<const char*> CheckstrcmptrueImpl(
|
||||
absl::Nullable<const char*> s1, absl::Nullable<const char*> s2,
|
||||
absl::Nonnull<const char*> exprtext);
|
||||
absl::Nullable<const char*> CheckstrcmpfalseImpl(
|
||||
absl::Nullable<const char*> s1, absl::Nullable<const char*> s2,
|
||||
absl::Nonnull<const char*> exprtext);
|
||||
absl::Nullable<const char*> CheckstrcasecmptrueImpl(
|
||||
absl::Nullable<const char*> s1, absl::Nullable<const char*> s2,
|
||||
absl::Nonnull<const char*> exprtext);
|
||||
absl::Nullable<const char*> CheckstrcasecmpfalseImpl(
|
||||
absl::Nullable<const char*> s1, absl::Nullable<const char*> s2,
|
||||
absl::Nonnull<const char*> exprtext);
|
||||
|
||||
// `CHECK_EQ` and friends want to pass their arguments by reference, however
|
||||
// this winds up exposing lots of cases where people have defined and
|
||||
// initialized static const data members but never declared them (i.e. in a .cc
|
||||
// file), meaning they are not referenceable. This function avoids that problem
|
||||
// for integers (the most common cases) by overloading for every primitive
|
||||
// integer type, even the ones we discourage, and returning them by value.
|
||||
// NOLINTBEGIN(runtime/int)
|
||||
// NOLINTBEGIN(google-runtime-int)
|
||||
template <typename T>
|
||||
inline constexpr const T& GetReferenceableValue(const T& t) {
|
||||
return t;
|
||||
}
|
||||
inline constexpr char GetReferenceableValue(char t) { return t; }
|
||||
inline constexpr unsigned char GetReferenceableValue(unsigned char t) {
|
||||
return t;
|
||||
}
|
||||
inline constexpr signed char GetReferenceableValue(signed char t) { return t; }
|
||||
inline constexpr short GetReferenceableValue(short t) { return t; }
|
||||
inline constexpr unsigned short GetReferenceableValue(unsigned short t) {
|
||||
return t;
|
||||
}
|
||||
inline constexpr int GetReferenceableValue(int t) { return t; }
|
||||
inline constexpr unsigned int GetReferenceableValue(unsigned int t) {
|
||||
return t;
|
||||
}
|
||||
inline constexpr long GetReferenceableValue(long t) { return t; }
|
||||
inline constexpr unsigned long GetReferenceableValue(unsigned long t) {
|
||||
return t;
|
||||
}
|
||||
inline constexpr long long GetReferenceableValue(long long t) { return t; }
|
||||
inline constexpr unsigned long long GetReferenceableValue(
|
||||
unsigned long long t) {
|
||||
return t;
|
||||
}
|
||||
// NOLINTEND(google-runtime-int)
|
||||
// NOLINTEND(runtime/int)
|
||||
|
||||
} // namespace log_internal
|
||||
ABSL_NAMESPACE_END
|
||||
} // namespace absl
|
||||
|
||||
#endif // ABSL_LOG_INTERNAL_CHECK_OP_H_
|
||||
Loading…
Add table
Add a link
Reference in a new issue