validation.cc

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// Copyright 2013 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
 
#include "impeller/base/validation.h"
 
#include <atomic>
 
#include "flutter/fml/logging.h"
 
namespace impeller {
 
static std::atomic_int32_t sValidationLogsDisabledCount = 0;
static std::atomic_int32_t sValidationLogsAreFatal = 0;
 
void ImpellerValidationErrorsSetFatal(bool fatal) {
  sValidationLogsAreFatal = fatal;
}
 
ScopedValidationDisable::ScopedValidationDisable() {
  sValidationLogsDisabledCount++;
}
 
ScopedValidationDisable::~ScopedValidationDisable() {
  sValidationLogsDisabledCount--;
}
 
ScopedValidationFatal::ScopedValidationFatal() {
  sValidationLogsAreFatal++;
}
 
ScopedValidationFatal::~ScopedValidationFatal() {
  sValidationLogsAreFatal--;
}
 
ValidationLog::ValidationLog() = default;
 
ValidationLog::~ValidationLog() {
  if (sValidationLogsDisabledCount <= 0) {
    ImpellerValidationBreak(stream_.str().c_str());
  }
}
 
std::ostream& ValidationLog::GetStream() {
  return stream_;
}
 
void ImpellerValidationBreak(const char* message) {
  std::stringstream stream;
#if FLUTTER_RELEASE
  stream << "Impeller validation: " << message;
#else
  stream << "Break on '" << __FUNCTION__
         << "' to inspect point of failure: " << message;
#endif
  if (sValidationLogsAreFatal > 0) {
    FML_LOG(FATAL) << stream.str();
  } else {
    FML_LOG(ERROR) << stream.str();
  }
}
 
bool ImpellerValidationErrorsAreFatal() {
  return sValidationLogsAreFatal;
}
 
}  // namespace impeller