logger.h

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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.
 
#ifndef FLUTTER_IMPELLER_COMPILER_LOGGER_H_
#define FLUTTER_IMPELLER_COMPILER_LOGGER_H_
 
#include <sstream>
#include <string>
 
#include "flutter/fml/logging.h"
 
namespace impeller {
namespace compiler {
 
class AutoLogger {
 public:
  explicit AutoLogger(std::stringstream& logger) : logger_(logger) {}
 
  ~AutoLogger() {
    logger_ << std::endl;
    logger_.flush();
  }
 
  template <class T>
  AutoLogger& operator<<(const T& object) {
    logger_ << object;
    return *this;
  }
 
 private:
  std::stringstream& logger_;
 
  AutoLogger(const AutoLogger&) = delete;
 
  AutoLogger& operator=(const AutoLogger&) = delete;
};
 
#define COMPILER_ERROR(stream) \
  ::impeller::compiler::AutoLogger(stream) << GetSourcePrefix()
 
#define COMPILER_ERROR_NO_PREFIX(stream) \
  ::impeller::compiler::AutoLogger(stream)
 
}  // namespace compiler
}  // namespace impeller
 
#endif  // FLUTTER_IMPELLER_COMPILER_LOGGER_H_