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      1 // RUN: %clang_cc1 -fsyntax-only -verify %s
      2 typedef _Bool BOOL;
      3 
      4 @interface NSNumber @end
      5 
      6 @interface NSNumber (NSNumberCreation)
      7 + (NSNumber *)numberWithChar:(char)value;
      8 + (NSNumber *)numberWithUnsignedChar:(unsigned char)value;
      9 + (NSNumber *)numberWithShort:(short)value;
     10 + (NSNumber *)numberWithUnsignedShort:(unsigned short)value;
     11 + (NSNumber *)numberWithInt:(int)value;
     12 + (NSNumber *)numberWithUnsignedInt:(unsigned int)value;
     13 + (NSNumber *)numberWithLong:(long)value;
     14 + (NSNumber *)numberWithUnsignedLong:(unsigned long)value;
     15 + (NSNumber *)numberWithLongLong:(long long)value;
     16 + (NSNumber *)numberWithUnsignedLongLong:(unsigned long long)value;
     17 + (NSNumber *)numberWithFloat:(float)value;
     18 + (NSNumber *)numberWithDouble:(double)value;
     19 + (int)numberWithBool:(BOOL)value; // expected-note 2 {{method returns unexpected type 'int' (should be an object type)}}
     20 @end
     21 
     22 @interface NSString
     23 + (char)stringWithUTF8String:(const char *)value; // expected-note 2 {{method returns unexpected type 'char' (should be an object type)}}
     24 @end
     25 
     26 @interface NSArray
     27 @end
     28 
     29 @interface NSArray (NSArrayCreation)
     30 + (id)arrayWithObjects:(const int [])objects // expected-note 2 {{first parameter has unexpected type 'const int *' (should be 'const id *')}}
     31                  count:(unsigned long)cnt;
     32 @end
     33 
     34 @interface NSDictionary
     35 + (id)dictionaryWithObjects:(const id [])objects
     36                     forKeys:(const int [])keys // expected-note 2 {{second parameter has unexpected type 'const int *' (should be 'const id *')}}
     37                       count:(unsigned long)cnt;
     38 @end
     39 
     40 // All tests are doubled to make sure that a bad method is not saved
     41 // and then used un-checked.
     42 void test_sig() {
     43   (void)@__objc_yes; // expected-error{{literal construction method 'numberWithBool:' has incompatible signature}}
     44   (void)@__objc_yes; // expected-error{{literal construction method 'numberWithBool:' has incompatible signature}}
     45   id array = @[ @17 ]; // expected-error{{literal construction method 'arrayWithObjects:count:' has incompatible signature}}
     46   id array2 = @[ @17 ]; // expected-error{{literal construction method 'arrayWithObjects:count:' has incompatible signature}}
     47   id dict = @{ @"hello" : @17 }; // expected-error{{literal construction method 'dictionaryWithObjects:forKeys:count:' has incompatible signature}}
     48   id dict2 = @{ @"hello" : @17 }; // expected-error{{literal construction method 'dictionaryWithObjects:forKeys:count:' has incompatible signature}}
     49   id str = @("hello"); // expected-error{{literal construction method 'stringWithUTF8String:' has incompatible signature}}
     50   id str2 = @("hello"); // expected-error{{literal construction method 'stringWithUTF8String:' has incompatible signature}}
     51 }
     52