NSObject+FancyDescription

gistfile1.m

#import <Foundation/Foundation.h>

@interface NSObject (FancyDescription)

//
// Output the values of all the properties associated with a given class.
// Iterates all the way down the chain until we hit NSObject.
// 
- (NSString *)sg_description;

@end


#import <objc/runtime.h>
#import "NSObject+FancyDescription.h"

@implementation NSObject (FancyDescription)

- (NSString *)fancyDescriptionForClassType:(Class)classType
{
    NSMutableString *description = [NSMutableString string];
    
    Class superClass = class_getSuperclass(classType);
    if ((superClass != nil) && ([superClass isSubclassOfClass:[NSObject class]] == NO))
    {
        [description appendString:[self fancyDescriptionForClassType:superClass]];
    }
    
    NSUInteger numberOfProperties = 0;
    objc_property_t *propertyList = class_copyPropertyList(classType, &numberOfProperties);
    
    NSInteger i;
    for (i = 0 ; i < numberOfProperties ; i++) 
    {
        objc_property_t property = propertyList[i];
        const char *property_name = property_getName(property);
        
        NSString *propertyName = [NSString stringWithCString:property_name encoding:NSASCIIStringEncoding];
		if (propertyName != nil) 
        {
            id value = [self valueForKey:propertyName];
            
            [description appendFormat:@"\n%@ = %@\n", propertyName, value];
        }
    }
    free(propertyList);
    
    return description;
}

#pragma mark -
#pragma mark Instance Methods
// +--------------------------------------------------------------------
// | Instance Methods
// +--------------------------------------------------------------------

- (NSString *)sg_description
{
    return [NSString stringWithFormat:@"%@: {%@}", NSStringFromClass([self class]), [self fancyDescriptionForClassType:[self class]]];
}

@end