block_property_bug.m

#import <Foundation/Foundation.h>

@protocol PropertyProtocol
@property(readonly) NSString *example;
@end

int main (int argc, char *argv[]) {
    id<PropertyProtocol> prop = nil;

    /* Property access works fine here. */
    NSLog(@"%@", prop.example);

    /* ... but not here:
     * "error: request for member ‘example’ in something not a structure or union" */
    void (^Block)() = ^{
        NSLog(@"%@", prop.example);
    };

    Block();
}

This may be a stupid question, but what if you use
__block id prop = nil;
I can't imagine how that would help, but perhaps it would work.