text: /* Copyright (c) 2014-present, Facebook, Inc.
   * All rights reserved.
   *
   * This source code is licensed under the BSD-style license found in the
   * LICENSE file in the root directory of this source tree. An additional grant
   * of patent rights can be found in the PATENTS file in the same directory.
   */
  
  #pragma once
  
  #import <Foundation/NSException.h>
  #import <pthread.h>
  
  #define ASDisplayNodeAssertWithSignalAndLogFunction(condition, description, logFunction, ...) NSAssert(condition, description, ##__VA_ARGS__);
  #define ASDisplayNodeCAssertWithSignalAndLogFunction(condition, description, logFunction, ...) NSCAssert(condition, description, ##__VA_ARGS__);
  #define ASDisplayNodeAssertWithSignal(condition, description, ...) NSAssert(condition, description, ##__VA_ARGS__)
  #define ASDisplayNodeCAssertWithSignal(condition, description, ...) NSCAssert(condition, description, ##__VA_ARGS__)
  
  #define ASDISPLAYNODE_ASSERTIONS_ENABLED (!defined(NS_BLOCK_ASSERTIONS))
  
  #define ASDisplayNodeAssert(...) NSAssert(__VA_ARGS__)
  #define ASDisplayNodeCAssert(...) NSCAssert(__VA_ARGS__)
  
  #define ASDisplayNodeAssertNil(condition, description, ...) ASDisplayNodeAssertWithSignal(!(condition), nil, (description), ##__VA_ARGS__)
  #define ASDisplayNodeCAssertNil(condition, description, ...) ASDisplayNodeCAssertWithSignal(!(condition), nil, (description), ##__VA_ARGS__)
  
  #define ASDisplayNodeAssertNotNil(condition, description, ...) ASDisplayNodeAssertWithSignal((condition), nil, (description), ##__VA_ARGS__)
  #define ASDisplayNodeCAssertNotNil(condition, description, ...) ASDisplayNodeCAssertWithSignal((condition), nil, (description), ##__VA_ARGS__)
  
  #define ASDisplayNodeAssertImplementedBySubclass() ASDisplayNodeAssertWithSignal(NO, nil, @"This method must be implemented by subclass %@", [self class]);
  #define ASDisplayNodeAssertNotInstantiable() ASDisplayNodeAssertWithSignal(NO, nil, @"This class is not instantiable.");
  #define ASDisplayNodeAssertNotSupported() ASDisplayNodeAssertWithSignal(NO, nil, @"This method is not supported by class %@", [self class]);
  
  #define ASDisplayNodeAssertMainThread() ASDisplayNodeAssertWithSignal(0 != pthread_main_np(), nil, @"This method must be called on the main thread")
  #define ASDisplayNodeCAssertMainThread() ASDisplayNodeCAssertWithSignal(0 != pthread_main_np(), nil, @"This function must be called on the main thread")
  
  #define ASDisplayNodeAssertNotMainThread() ASDisplayNodeAssertWithSignal(0 == pthread_main_np(), nil, @"This method must be called off the main thread")
  #define ASDisplayNodeCAssertNotMainThread() ASDisplayNodeCAssertWithSignal(0 == pthread_main_np(), nil, @"This function must be called off the main thread")
  
  #define ASDisplayNodeAssertFlag(X) ASDisplayNodeAssertWithSignal((1 == __builtin_popcount(X)), nil, nil)
  #define ASDisplayNodeCAssertFlag(X) ASDisplayNodeCAssertWithSignal((1 == __builtin_popcount(X)), nil, nil)
  
  #define ASDisplayNodeAssertTrue(condition) ASDisplayNodeAssertWithSignal((condition), nil, nil)
  #define ASDisplayNodeCAssertTrue(condition) ASDisplayNodeCAssertWithSignal((condition), nil, nil)
  
  #define ASDisplayNodeAssertFalse(condition) ASDisplayNodeAssertWithSignal(!(condition), nil, nil)
  #define ASDisplayNodeCAssertFalse(condition) ASDisplayNodeCAssertWithSignal(!(condition), nil, nil)
  
  #define ASDisplayNodeFailAssert(description, ...) ASDisplayNodeAssertWithSignal(NO, nil, (description), ##__VA_ARGS__)
  #define ASDisplayNodeCFailAssert(description, ...) ASDisplayNodeCAssertWithSignal(NO, nil, (description), ##__VA_ARGS__)
  
  #define ASDisplayNodeConditionalAssert(shouldTestCondition, condition, description, ...) ASDisplayNodeAssert((!(shouldTestCondition) || (condition)), nil, (description), ##__VA_ARGS__)
  #define ASDisplayNodeConditionalCAssert(shouldTestCondition, condition, description, ...) ASDisplayNodeCAssert((!(shouldTestCondition) || (condition)), nil, (description), ##__VA_ARGS__)
  
  #define ASDisplayNodeCAssertPositiveReal(description, num) ASDisplayNodeCAssert(num >= 0 && num <= CGFLOAT_MAX, @"%@ must be a real positive integer.", description)
  #define ASDisplayNodeCAssertInfOrPositiveReal(description, num) ASDisplayNodeCAssert(isinf(num) || (num >= 0 && num <= CGFLOAT_MAX), @"%@ must be infinite or a real positive integer.", description)
  
  