Objective-c FOR-IN construction decompiled .

decompiled

NSFastEnumerationState traitsListEnumerationState;
    id traitsListObjectsPtr;
    NSUInteger traitStorageListsCount = [traitStorageLists countByEnumeratingWithState:&traitsListEnumerationState objects:&traitsListObjectsPtr count:16LL];
    int* v77 = 0LL;
    long v28 = 0LL;
    if (traitStorageListsCount){
        v28 = *v77;
        do {
            for(size_t i = 0; i< traitStorageListsCount; ++i){
                /* if (*v77 != v28){
                 // There are compiler-only logic to handle mutation though the enumeration.
                 // objc_enumerationMutation(traitStorageLists);
                 }*/
                NSObject* enumeratedObject = traitsListEnumerationState.itemsPtr[i];
                NSObject* topLevelObject = [(id)enumeratedObject topLevelObject];
                [topLevelObject _setTraitStorageList:enumeratedObject];
            }
            traitStorageListsCount = [traitStorageLists countByEnumeratingWithState:&traitsListEnumerationState objects:&traitsListObjectsPtr count:16LL];
        }while (traitStorageListsCount > 0);
    }

source code

for(NSObject* obj in traitStorageLists){
    obj.topLevelObject.traitStorageList = obj;
}