How to use inline block to better organize a block of code

TheEleganceOfBlock.mm

    __weak typeof(self) weakSelf = self;
    
    self.collectionView = (UICollectionView *)^{
        UICollectionViewFlowLayout *flowLayout = [[UICollectionViewFlowLayout alloc] init];
        UICollectionView *collectionView       = [[UICollectionView alloc] initWithFrame:weakSelf.view.bounds
                                                                    collectionViewLayout:flowLayout];
        collectionView.delegate   = weakSelf;
        collectionView.dataSource = weakSelf;
        
        return collectionView;
    }();

This is totally overkill, you can do the following:

self.collectionView = ({
    UICollectionViewFlowLayout *flowLayout = [[UICollectionViewFlowLayout alloc] init];
    UICollectionView *collectionView = [[UICollectionView alloc] initWithFrame:self.view.bounds collectionViewLayout:flowLayout];
    collectionView.delegate = self;
    collectionView.dataSource = self;
    collectionView;
});

@kylef I'm not doing this anymore and indeed I'm doing the same you were suggesting, even though is still see the problem that someone that is not familiar with this trick might take sometimes to understand the code.