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// RUN: %clang_cc1 -emit-llvm -triple x86_64-apple-darwin %s -o /dev/null
typedef unsigned int size_t;
@protocol P @end
@interface NSMutableArray
#if __has_feature(objc_subscripting)
- (id)objectAtIndexedSubscript:(size_t)index;
- (void)setObject:(id)object atIndexedSubscript:(size_t)index;
#endif
@end
#if __has_feature(objc_subscripting)
@interface XNSMutableArray
- (id)objectAtIndexedSubscript:(size_t)index;
- (void)setObject:(id)object atIndexedSubscript:(size_t)index;
#endif
@end
@interface NSMutableDictionary
- (id)objectForKeyedSubscript:(id)key;
- (void)setObject:(id)object forKeyedSubscript:(id)key;
@end
@class NSString;
int main() {
NSMutableArray<P> * array;
id oldObject = array[10];
array[10] = oldObject;
id unknown_array;
oldObject = unknown_array[1];
unknown_array[1] = oldObject;
NSMutableDictionary *dictionary;
NSString *key;
id newObject;
oldObject = dictionary[key];
dictionary[key] = newObject; // replace oldObject with newObject
}
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