rel=“nofollow noreferer”>NSProxy Level Reference:
典型的情况是,向代理人发送的电文被发送到真实物体,或导致代理人装载(或转化为)真实物体。
“向真正的目标转变”工作究竟如何?
使事情更加具体,代谢类别 Foo
有一个方法new FooWithString:
,该方法采用一个新实例:。 Foo
。 如果收到<条码>条码<>条码<>条码>,则有可能形成<条码>。
rel=“nofollow noreferer”>NSProxy Level Reference:
典型的情况是,向代理人发送的电文被发送到真实物体,或导致代理人装载(或转化为)真实物体。
“向真正的目标转变”工作究竟如何?
使事情更加具体,代谢类别 Foo
有一个方法new FooWithString:
,该方法采用一个新实例:。 Foo
。 如果收到<条码>条码<>条码<>条码>,则有可能形成<条码>。
如果你在守则上都有一个同一个国家程序小组的协调人,并且将“修改”守则,那么,它就会改变所有做法。 没有任何办法区别使用物体的方法,因此,你无法选择自动在你的法典中提出使用方法的目标。 共同可变的代理办法将采取以下方式:
MyTrickyProxy.h
#import <Foundation/Foundation.h>
@interface MyTrickyProxy : NSProxy {
NSObject *object;
}
- (id)transformToObject:(NSObject *)anObject;
@end
MyTrickyProxy.m
#import "MyTrickyProxy.h"
@implementation MyTrickyProxy
- (void)dealloc
{
[object release];
object = nil;
[super dealloc];
}
- (NSString *)description
{
return [object description];
}
//Stupid transform implementation just by assigning a passed in object as transformation target. You can write your factory here and use passed in object as id for object that need ot be created.
- (id)transformToObject:(NSObject *)anObject
{
if(object != anObject) {
[object release];
}
object = [anObject retain];
return object;
}
- (void)forwardInvocation:(NSInvocation *)invocation
{
if (object != nil) {
[invocation setTarget:object];
[invocation invoke];
}
}
- (NSMethodSignature *)methodSignatureForSelector:(SEL)sel
{
NSMethodSignature *result;
if (object != nil) {
result = [object methodSignatureForSelector:sel];
} else {
//Will throw an exception as default implementation
result = [super methodSignatureForSelector:sel];
}
return result;
}
@end
因此,你要求的是某种规范,但国家安全局是传递信息的一个简单渠道,根本不存在任何魔鬼,因此,你的目标不能像你所描述的那样实现。
您可以创立一个子级的国家安全局,这一变化反对它,将其方法推向根据你们想要的每一项标准。 因此,您的反对将永远指向国家食品安全局,但请BecomeAFooUsingString:将目标转变为“Foo”。
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