//
|
// SGWeakProxy.m
|
// SGQRCodeExample
|
//
|
// Created by kingsic on 2022/7/2.
|
//
|
|
#import "SGWeakProxy.h"
|
|
@interface SGWeakProxy ()
|
@property (nonatomic, weak) id target;
|
@end
|
|
@implementation SGWeakProxy
|
|
+ (instancetype)weakProxyWithTarget:(id)aTarget {
|
SGWeakProxy *weakProxy = [SGWeakProxy alloc];
|
weakProxy.target = aTarget;
|
return weakProxy;
|
}
|
|
|
- (id)forwardingTargetForSelector:(SEL)selector {
|
return _target;
|
}
|
|
- (void)forwardInvocation:(NSInvocation *)invocation {
|
void *nullPointer = NULL;
|
[invocation setReturnValue:&nullPointer];
|
}
|
|
- (NSMethodSignature *)methodSignatureForSelector:(SEL)selector {
|
return [NSObject instanceMethodSignatureForSelector:@selector(init)];
|
}
|
|
@end
|
