|  | // RUN: %clang_analyze_cc1 -analyzer-checker=core,osx -fblocks -analyzer-output=text -verify %s | 
|  |  | 
|  | #include "../Inputs/system-header-simulator-objc.h" | 
|  |  | 
|  | @interface NSDictionary : NSObject | 
|  | - (NSUInteger)count; | 
|  | - (id)objectForKey:(id)aKey; | 
|  | - (NSEnumerator *)keyEnumerator; | 
|  | @end | 
|  | @interface NSMutableDictionary : NSDictionary | 
|  | - (void)setObject:(id)anObject forKey:(id <NSCopying>)aKey; | 
|  | @end | 
|  |  | 
|  | void testBOOLMacro(BOOL b) { | 
|  | if (b == YES) { // expected-note {{Assuming 'b' is equal to YES}} | 
|  | // expected-note@-1 {{Taking true branch}} | 
|  | char *p = NULL;// expected-note {{'p' initialized to a null pointer value}} | 
|  | *p = 7;  // expected-warning {{Dereference of null pointer (loaded from variable 'p')}} | 
|  | // expected-note@-1 {{Dereference of null pointer (loaded from variable 'p')}} | 
|  | } | 
|  | } | 
|  |  | 
|  | void testNilMacro(NSMutableDictionary *d, NSObject *o) { | 
|  | if (o == nil) // expected-note {{Assuming 'o' is equal to nil}} | 
|  | // expected-note@-1 {{Taking true branch}} | 
|  | [d setObject:o forKey:[o description]]; // expected-warning {{Key argument to 'setObject:forKey:' cannot be nil}} | 
|  | // expected-note@-1 {{'description' not called because the receiver is nil}} | 
|  | // expected-note@-2 {{Key argument to 'setObject:forKey:' cannot be nil}} | 
|  |  | 
|  | return; | 
|  | } |