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// 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.
#include "y_absl/log/internal/check_op.h"
#include <cstring>
#include <ostream>
#include <util/generic/string.h>
#include <utility>
#include "y_absl/base/config.h"
#include "y_absl/base/nullability.h"
#include "y_absl/debugging/leak_check.h"
#include "y_absl/strings/str_cat.h"
#include "y_absl/strings/string_view.h"
#ifdef _MSC_VER
#define strcasecmp _stricmp
#else
#include <strings.h> // for strcasecmp, but msvc does not have this header
#endif
namespace y_absl {
Y_ABSL_NAMESPACE_BEGIN
namespace log_internal {
#define Y_ABSL_LOGGING_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING(x) \
template y_absl::Nonnull<const char*> MakeCheckOpString( \
x, x, y_absl::Nonnull<const char*>)
Y_ABSL_LOGGING_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING(bool);
Y_ABSL_LOGGING_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING(int64_t);
Y_ABSL_LOGGING_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING(uint64_t);
Y_ABSL_LOGGING_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING(float);
Y_ABSL_LOGGING_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING(double);
Y_ABSL_LOGGING_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING(char);
Y_ABSL_LOGGING_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING(unsigned char);
Y_ABSL_LOGGING_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING(const TString&);
Y_ABSL_LOGGING_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING(const y_absl::string_view&);
Y_ABSL_LOGGING_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING(const char*);
Y_ABSL_LOGGING_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING(const signed char*);
Y_ABSL_LOGGING_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING(const unsigned char*);
Y_ABSL_LOGGING_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING(const void*);
#undef Y_ABSL_LOGGING_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING
CheckOpMessageBuilder::CheckOpMessageBuilder(
y_absl::Nonnull<const char*> exprtext) {
stream_ << exprtext << " (";
}
std::ostream& CheckOpMessageBuilder::ForVar2() {
stream_ << " vs. ";
return stream_;
}
y_absl::Nonnull<const char*> CheckOpMessageBuilder::NewString() {
stream_ << ")";
// There's no need to free this string since the process is crashing.
return y_absl::IgnoreLeak(new TString(std::move(stream_).str()))->c_str();
}
void MakeCheckOpValueString(std::ostream& os, const char v) {
if (v >= 32 && v <= 126) {
os << "'" << v << "'";
} else {
os << "char value " << int{v};
}
}
void MakeCheckOpValueString(std::ostream& os, const signed char v) {
if (v >= 32 && v <= 126) {
os << "'" << v << "'";
} else {
os << "signed char value " << int{v};
}
}
void MakeCheckOpValueString(std::ostream& os, const unsigned char v) {
if (v >= 32 && v <= 126) {
os << "'" << v << "'";
} else {
os << "unsigned char value " << int{v};
}
}
void MakeCheckOpValueString(std::ostream& os, const void* p) {
if (p == nullptr) {
os << "(null)";
} else {
os << p;
}
}
// Helper functions for string comparisons.
#define DEFINE_CHECK_STROP_IMPL(name, func, expected) \
y_absl::Nullable<const char*> Check##func##expected##Impl( \
y_absl::Nullable<const char*> s1, y_absl::Nullable<const char*> s2, \
y_absl::Nonnull<const char*> exprtext) { \
bool equal = s1 == s2 || (s1 && s2 && !func(s1, s2)); \
if (equal == expected) { \
return nullptr; \
} else { \
/* There's no need to free this string since the process is crashing. */ \
return y_absl::IgnoreLeak(new TString(y_absl::StrCat(exprtext, " (", s1, \
" vs. ", s2, ")"))) \
->c_str(); \
} \
}
DEFINE_CHECK_STROP_IMPL(CHECK_STREQ, strcmp, true)
DEFINE_CHECK_STROP_IMPL(CHECK_STRNE, strcmp, false)
DEFINE_CHECK_STROP_IMPL(CHECK_STRCASEEQ, strcasecmp, true)
DEFINE_CHECK_STROP_IMPL(CHECK_STRCASENE, strcasecmp, false)
#undef DEFINE_CHECK_STROP_IMPL
namespace detect_specialization {
StringifySink::StringifySink(std::ostream& os) : os_(os) {}
void StringifySink::Append(y_absl::string_view text) { os_ << text; }
void StringifySink::Append(size_t length, char ch) {
for (size_t i = 0; i < length; ++i) os_.put(ch);
}
void AbslFormatFlush(StringifySink* sink, y_absl::string_view text) {
sink->Append(text);
}
} // namespace detect_specialization
} // namespace log_internal
Y_ABSL_NAMESPACE_END
} // namespace y_absl
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