text: /**
   *
   *    Copyright (c) 2020-2021 Project CHIP Authors
   *    Copyright (c) 2018 Google LLC.
   *    Copyright (c) 2016-2017 Nest Labs, Inc.
   *    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
   *
   *        http://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
   *      This file defines message helper functions in CHIP interaction model
   *
   */
  
  #pragma once
  
  #include <algorithm>
  #include <inttypes.h>
  #include <stdarg.h>
  #include <stdio.h>
  
  #include <app/AppBuildConfig.h>
  
  // We need CHIPLogging.h to get the right value for CHIP_DETAIL_LOGGING here.
  #include <lib/support/logging/CHIPLogging.h>
  
  namespace chip {
  namespace app {
  #if CHIP_CONFIG_IM_ENABLE_SCHEMA_CHECK && CHIP_DETAIL_LOGGING
  /**
   * Start a new "blank" line.  This will actually print out whitespace to the
   * current indent level, which can be followed with PRETTY_PRINT_SAMELINE calls.
   */
  void PrettyPrintIMBlankLine();
  void PrettyPrintIM(bool aIsNewLine, const char * aFmt, ...) ENFORCE_FORMAT(2, 3);
  void IncreaseDepth();
  void DecreaseDepth();
  #define PRETTY_PRINT_BLANK_LINE()                                                                                                  \
      do                                                                                                                             \
      {                                                                                                                              \
          PrettyPrintIMBlankLine();                                                                                                  \
      } while (0)
  #define PRETTY_PRINT(fmt, ...)                                                                                                     \
      do                                                                                                                             \
      {                                                                                                                              \
          PrettyPrintIM(true, fmt, ##__VA_ARGS__);                                                                                   \
      } while (0)
  #define PRETTY_PRINT_SAMELINE(fmt, ...)                                                                                            \
      do                                                                                                                             \
      {                                                                                                                              \
          PrettyPrintIM(false, fmt, ##__VA_ARGS__);                                                                                  \
      } while (0)
  #define PRETTY_PRINT_INCDEPTH()                                                                                                    \
      do                                                                                                                             \
      {                                                                                                                              \
          IncreaseDepth();                                                                                                           \
      } while (0)
  #define PRETTY_PRINT_DECDEPTH()                                                                                                    \
      do                                                                                                                             \
      {                                                                                                                              \
          DecreaseDepth();                                                                                                           \
      } while (0)
  #else
  #define PRETTY_PRINT_BLANK_LINE()
  #define PRETTY_PRINT(fmt, ...)
  #define PRETTY_PRINT(fmt, ...)
  #define PRETTY_PRINT_SAMELINE(fmt, ...)
  #define PRETTY_PRINT_INCDEPTH()
  #define PRETTY_PRINT_DECDEPTH()
  #endif
  }; // namespace app
  }; // namespace chip
  