Make dictionary of properties in objective c

DictionaryConvertable.m

#import <Foundation/Foundation.h>
#import <objc/runtime.h>

@interface DictionaryConvertable : NSObject

- (NSDictionary *)toDictionary;

@end

// ----------


@implementation DictionaryConvertable

- (NSDictionary *)toDictionary
{
    NSMutableArray *propertyNames = [NSMutableArray array];
    
    id currentClass = [self class];
    NSString *propertyName;
    unsigned int outCount, i;
    objc_property_t *properties = class_copyPropertyList(currentClass, &outCount);
    for (i = 0; i < outCount; i++) {
    	objc_property_t property = properties[i];
    	propertyName = [NSString stringWithUTF8String:property_getName(property)];
        [propertyNames addObject:propertyName];
    }
    
    NSDictionary *propertyDict = [self dictionaryWithValuesForKeys:propertyNames];
    
    free(properties);
    
    return propertyDict;
}


@end