text: /*
   * Copyright 2018 Google
   *
   * 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.
   */
  
  #import <Foundation/Foundation.h>
  
  /** A list of message codes to print in the logger that help to correspond printed messages with
   * code locations.
   *
   * Prefixes:
   * - MCW => MessageCodeWarning
   * - MCE => MessageCodeError
   */
  typedef NS_ENUM(NSInteger, GDTCORMessageCode) {
  
    /** For warning messages concerning transportBytes: not being implemented by a data object. */
    GDTCORMCWDataObjectMissingBytesImpl = 1,
  
    /** For warning messages concerning a failed event upload. */
    GDTCORMCWUploadFailed = 2,
  
    /** For warning messages concerning a forced event upload. */
    GDTCORMCWForcedUpload = 3,
  
    /** For warning messages concerning a failed reachability call. */
    GDTCORMCWReachabilityFailed = 4,
  
    /** For error messages concerning transform: not being implemented by an event transformer. */
    GDTCORMCETransformerDoesntImplementTransform = 1000,
  
    /** For error messages concerning the creation of a directory failing. */
    GDTCORMCEDirectoryCreationError = 1001,
  
    /** For error messages concerning the writing of a event file. */
    GDTCORMCEFileWriteError = 1002,
  
    /** For error messages concerning the lack of a prioritizer for a given backend. */
    GDTCORMCEPrioritizerError = 1003,
  
    /** For error messages concerning a package delivery API violation. */
    GDTCORMCEDeliverTwice = 1004,
  
    /** For error messages concerning an error in an implementation of -transportBytes. */
    GDTCORMCETransportBytesError = 1005,
  
    /** For general purpose error messages in a dependency. */
    GDTCORMCEGeneralError = 1006,
  
    /** For fatal errors. Please go to https://github.com/firebase/firebase-ios-sdk/issues and open
     * an issue if you encounter an error with this code.
     */
    GDTCORMCEFatalAssertion = 1007
  };
  
  /** */
  FOUNDATION_EXPORT
  void GDTCORLog(GDTCORMessageCode code, NSString *_Nonnull format, ...);
  
  /** Returns the string that represents some message code.
   *
   * @param code The code to convert to a string.
   * @return The string representing the message code.
   */
  FOUNDATION_EXPORT NSString *_Nonnull GDTCORMessageCodeEnumToString(GDTCORMessageCode code);
  
  // A define to wrap GULLogWarning with slightly more convenient usage.
  #define GDTCORLogWarning(MESSAGE_CODE, MESSAGE_FORMAT, ...) \
    GDTCORLog(MESSAGE_CODE, MESSAGE_FORMAT, __VA_ARGS__);
  
  // A define to wrap GULLogError with slightly more convenient usage and a failing assert.
  #define GDTCORLogError(MESSAGE_CODE, MESSAGE_FORMAT, ...) \
    GDTCORLog(MESSAGE_CODE, MESSAGE_FORMAT, __VA_ARGS__);
  