| 1 | // RUN: %clang_cc1 -emit-llvm -triple x86_64-apple-darwin %s -o /dev/null |
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| 2 | |
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| 3 | typedef unsigned int size_t; |
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| 4 | @protocol P @end |
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| 5 | |
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| 6 | @interface NSMutableArray |
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| 7 | #if __has_feature(objc_subscripting) |
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| 8 | - (id)objectAtIndexedSubscript:(size_t)index; |
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| 9 | - (void)setObject:(id)object atIndexedSubscript:(size_t)index; |
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| 10 | #endif |
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| 11 | @end |
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| 12 | |
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| 13 | #if __has_feature(objc_subscripting) |
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| 14 | @interface XNSMutableArray |
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| 15 | - (id)objectAtIndexedSubscript:(size_t)index; |
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| 16 | - (void)setObject:(id)object atIndexedSubscript:(size_t)index; |
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| 17 | #endif |
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| 18 | @end |
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| 19 | |
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| 20 | @interface NSMutableDictionary |
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| 21 | - (id)objectForKeyedSubscript:(id)key; |
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| 22 | - (void)setObject:(id)object forKeyedSubscript:(id)key; |
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| 23 | @end |
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| 24 | |
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| 25 | @class NSString; |
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| 26 | |
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| 27 | int main() { |
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| 28 | NSMutableArray<P> * array; |
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| 29 | id oldObject = array[10]; |
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| 30 | |
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| 31 | array[10] = oldObject; |
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| 32 | |
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| 33 | id unknown_array; |
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| 34 | oldObject = unknown_array[1]; |
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| 35 | |
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| 36 | unknown_array[1] = oldObject; |
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| 37 | |
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| 38 | NSMutableDictionary *dictionary; |
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| 39 | NSString *key; |
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| 40 | id newObject; |
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| 41 | oldObject = dictionary[key]; |
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| 42 | dictionary[key] = newObject; // replace oldObject with newObject |
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| 43 | |
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| 44 | } |
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| 45 | |
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| 46 | |
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