objective c - Runtime checking of Blocks and Queues in NSDictionary -

this question has answer here:

• checking objective-c block type? 5 answers

i have array of dictionaries, stores blocks , queues. after method need execute it.

for (nsdictionary * dict in self.arrayofblocksandqueues) {     if (!dict[@"block"] || !dict[@"queue"]) {         continue;     }     dispatch_block_t block = dict[@"block"];     dispatch_async(dict[@"queue"], ^{         block();     }); } 

so question is, how can check in runtime, dict[@"block"] , dict[@"queue"] type i’m expected? have typedef void(^handler)(); , need sure dict[@"block”] type of handler. know, blocks , queues in fact objective-c objects, don’t conforms <nsobject> protocol. so, there anyway it?

thanks in advance!

you can create class block/queue property easy manipulation. try setting block , queue properies class , add objects in dictionary.

//block class @interface myblock : nsobject  @property (assign) dispatch_block_t block;  @end  //queue class @interface myqueue : nsobject  @property (assign) dispatch_queue_t block;  @end