Aspects don't intercept the methods of NSMutableString

[ChrislosChen]

NSMutableString *test1 = [[NSMutableString alloc] initWithString:@"abc"];
NSError *hookError = nil;
[NSMutableString aspect_hookSelector:@selector(appendString:) withOptions:AspectPositionInstead usingBlock:^(id aspectInfo, NSString *aString){
if (aString.length) {
NSLog(@"....%@", aString);
}

} error:&hookError];

if (hookError) {
    NSLog(@"........%@", hookError);
}

[test1 appendString:@"123123"];

NSLog(@"......%@", test1);

The code above does't work , the log like this as below:

AOCTest[35714:10671370] ......abc123123

for why, can you help me have a look?

[Peter Steinberger]

You can't hook a class cluster - there are multiple internal hidden classes representing this. It's a bad idea and Aspects is not made for that.

[ChrislosChen]

ok, great job, thank u