Repo created

TMessagesProj/jni/voip/webrtc/absl/log/internal/check_op.cc

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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 "absl/log/internal/check_op.h"
+
+#include <cstring>
+#include <ostream>
+#include <string>
+#include <utility>
+
+#include "absl/base/config.h"
+#include "absl/base/nullability.h"
+#include "absl/debugging/leak_check.h"
+#include "absl/strings/str_cat.h"
+#include "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 absl {
+ABSL_NAMESPACE_BEGIN
+namespace log_internal {
+
+#define ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING(x) \
+  template absl::Nonnull<const char*> MakeCheckOpString( \
+      x, x, absl::Nonnull<const char*>)
+ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING(bool);
+ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING(int64_t);
+ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING(uint64_t);
+ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING(float);
+ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING(double);
+ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING(char);
+ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING(unsigned char);
+ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING(const std::string&);
+ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING(const absl::string_view&);
+ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING(const char*);
+ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING(const signed char*);
+ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING(const unsigned char*);
+ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING(const void*);
+#undef ABSL_LOG_INTERNAL_DEFINE_MAKE_CHECK_OP_STRING
+
+CheckOpMessageBuilder::CheckOpMessageBuilder(
+    absl::Nonnull<const char*> exprtext) {
+  stream_ << exprtext << " (";
+}
+
+std::ostream& CheckOpMessageBuilder::ForVar2() {
+  stream_ << " vs. ";
+  return stream_;
+}
+
+absl::Nonnull<const char*> CheckOpMessageBuilder::NewString() {
+  stream_ << ")";
+  // There's no need to free this string since the process is crashing.
+  return absl::IgnoreLeak(new std::string(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)                          \
+  absl::Nullable<const char*> Check##func##expected##Impl(                     \
+      absl::Nullable<const char*> s1, absl::Nullable<const char*> s2,          \
+      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 absl::IgnoreLeak(new std::string(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(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, absl::string_view text) {
+  sink->Append(text);
+}
+
+}  // namespace detect_specialization
+
+}  // namespace log_internal
+ABSL_NAMESPACE_END
+}  // namespace absl