#import <objc/runtime.h>

@implementation NSURL (URLWithStringEncode)

+ (void)load {
static dispatch_once_t onceToken;
dispatch_once(&onceToken, ^ {
    const char* class_name = class_getName([self class]);
    Class metaClass = objc_getMetaClass(class_name);
    
    SEL originalSelector = @selector(URLWithString:);
    SEL newSelector = @selector(p_URLWithString:);

    Method originalMethod = class_getInstanceMethod(metaClass, originalSelector);
    Method newMethod = class_getInstanceMethod(metaClass, newSelector);
    
    BOOL methodAdded = class_addMethod([metaClass class],
                                       originalSelector,
                                       method_getImplementation(newMethod),
                                       method_getTypeEncoding(newMethod));
    
    if (methodAdded) {
        class_replaceMethod([metaClass class],
                            newSelector,
                            method_getImplementation(originalMethod),
                            method_getTypeEncoding(originalMethod));
    }
    else {
        method_exchangeImplementations(originalMethod, newMethod);
    }
  });
}


+ (instancetype)p_URLWithString:(NSString *)URLString {
	//TODO:...
    return [NSURL p_URLWithString:URLString];
}

@end