clang/test/CodeGenObjC/objc-container-subscripting.m

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