Sparkle.framework/Versions/A/Headers/SUVersionComparisonProtocol.h

   1 //
   2 //  SUVersionComparisonProtocol.h
   3 //  Sparkle
   4 //
   5 //  Created by Andy Matuschak on 12/21/07.
   6 //  Copyright 2007 Andy Matuschak. All rights reserved.
   7 //
   8
   9 #ifndef SUVERSIONCOMPARISONPROTOCOL_H
  10 #define SUVERSIONCOMPARISONPROTOCOL_H
  11
  12 #if __has_feature(modules)
  13 @import Foundation;
  14 #else
  15 #import <Foundation/Foundation.h>
  16 #endif
  17 #import "SUExport.h"
  18
  19 NS_ASSUME_NONNULL_BEGIN
  20
  21 /*!
  22     Provides version comparison facilities for Sparkle.
  23 */
  24 @protocol SUVersionComparison
  25
  26 /*!
  27     An abstract method to compare two version strings.
  28
  29     Should return NSOrderedAscending if b > a, NSOrderedDescending if b < a,
  30     and NSOrderedSame if they are equivalent.
  31 */
  32 - (NSComparisonResult)compareVersion:(NSString *)versionA toVersion:(NSString *)versionB; // *** MAY BE CALLED ON NON-MAIN THREAD!
  33
  34 @end
  35
  36 NS_ASSUME_NONNULL_END
  37 #endif