NSContainers.m revision b095782ec09329b474a4e0d0ccdad4c15d515b39 
1// RUN: %clang_cc1 -analyze -analyzer-checker=core,osx.cocoa.NilArg -verify -Wno-objc-root-class %s
2typedef unsigned long NSUInteger;
3typedef signed char BOOL;
4typedef struct _NSZone NSZone;
5@class NSInvocation, NSMethodSignature, NSCoder, NSString, NSEnumerator;
6@protocol NSObject
7@end
8@protocol NSCopying
9- (id)copyWithZone:(NSZone *)zone;
10@end
11@protocol NSMutableCopying
12- (id)mutableCopyWithZone:(NSZone *)zone;
13@end
14@protocol NSCoding
15- (void)encodeWithCoder:(NSCoder *)aCoder;
16@end
17@protocol NSFastEnumeration
18@end
19@protocol NSSecureCoding <NSCoding>
20@required
21+ (BOOL)supportsSecureCoding;
22@end
23@interface NSObject <NSObject> {}
24- (id)init;
25+ (id)alloc;
26@end
27@interface NSArray : NSObject <NSCopying, NSMutableCopying, NSSecureCoding, NSFastEnumeration>
28
29- (NSUInteger)count;
30- (id)objectAtIndex:(NSUInteger)index;
31
32@end
33
34@interface NSArray (NSExtendedArray)
35- (NSArray *)arrayByAddingObject:(id)anObject;
36- (void)setObject:(id)obj atIndexedSubscript:(NSUInteger)idx __attribute__((availability(macosx,introduced=10.8)));
37@end
38
39@interface NSMutableArray : NSArray
40
41- (void)addObject:(id)anObject;
42- (void)insertObject:(id)anObject atIndex:(NSUInteger)index;
43- (void)removeLastObject;
44- (void)removeObjectAtIndex:(NSUInteger)index;
45- (void)replaceObjectAtIndex:(NSUInteger)index withObject:(id)anObject;
46
47@end
48
49@interface NSDictionary : NSObject <NSCopying, NSMutableCopying, NSSecureCoding, NSFastEnumeration>
50
51- (NSUInteger)count;
52- (id)objectForKey:(id)aKey;
53- (NSEnumerator *)keyEnumerator;
54
55@end
56
57@interface NSDictionary (NSDictionaryCreation)
58
59+ (id)dictionary;
60+ (id)dictionaryWithObject:(id)object forKey:(id <NSCopying>)key;
61@end
62
63@interface NSMutableDictionary : NSDictionary
64
65- (void)removeObjectForKey:(id)aKey;
66- (void)setObject:(id)anObject forKey:(id <NSCopying>)aKey;
67
68@end
69
70@interface NSMutableDictionary (NSExtendedMutableDictionary)
71
72- (void)addEntriesFromDictionary:(NSDictionary *)otherDictionary;
73- (void)removeAllObjects;
74- (void)removeObjectsForKeys:(NSArray *)keyArray;
75- (void)setDictionary:(NSDictionary *)otherDictionary;
76- (void)setObject:(id)obj forKeyedSubscript:(id <NSCopying>)key __attribute__((availability(macosx,introduced=10.8)));
77
78@end
79
80@interface NSString : NSObject <NSCopying, NSMutableCopying, NSSecureCoding>
81
82@end
83
84// NSMutableArray API
85void testNilArgNSMutableArray1() {
86  NSMutableArray *marray = [[NSMutableArray alloc] init];
87  [marray addObject:0]; // expected-warning {{Argument to 'NSMutableArray' method 'addObject:' cannot be nil}}
88}
89
90void testNilArgNSMutableArray2() {
91  NSMutableArray *marray = [[NSMutableArray alloc] init];
92  [marray insertObject:0 atIndex:1]; // expected-warning {{Argument to 'NSMutableArray' method 'insertObject:atIndex:' cannot be nil}}
93}
94
95void testNilArgNSMutableArray3() {
96  NSMutableArray *marray = [[NSMutableArray alloc] init];
97  [marray replaceObjectAtIndex:1 withObject:0]; // expected-warning {{Argument to 'NSMutableArray' method 'replaceObjectAtIndex:withObject:' cannot be nil}}
98}
99
100void testNilArgNSMutableArray4() {
101  NSMutableArray *marray = [[NSMutableArray alloc] init];
102  [marray setObject:0 atIndexedSubscript:1]; // expected-warning {{Argument to 'NSMutableArray' method 'setObject:atIndexedSubscript:' cannot be nil}}
103}
104
105void testNilArgNSMutableArray5() {
106  NSMutableArray *marray = [[NSMutableArray alloc] init];
107  marray[1] = 0; // expected-warning {{Array element cannot be nil}}
108}
109
110// NSArray API
111void testNilArgNSArray1() {
112  NSArray *array = [[NSArray alloc] init];
113  NSArray *copyArray = [array arrayByAddingObject:0]; // expected-warning {{Argument to 'NSArray' method 'arrayByAddingObject:' cannot be nil}}
114}
115
116// NSMutableDictionary and NSDictionary APIs.
117void testNilArgNSMutableDictionary1(NSMutableDictionary *d, NSString* key) {
118  [d setObject:0 forKey:key]; // expected-warning {{Argument to 'NSMutableDictionary' method 'setObject:forKey:' cannot be nil}}
119}
120
121void testNilArgNSMutableDictionary2(NSMutableDictionary *d, NSObject *obj) {
122  [d setObject:obj forKey:0]; // expected-warning {{Argument to 'NSMutableDictionary' method 'setObject:forKey:' cannot be nil}}
123}
124
125void testNilArgNSMutableDictionary3(NSMutableDictionary *d) {
126  [d removeObjectForKey:0]; // expected-warning {{Argument to 'NSMutableDictionary' method 'removeObjectForKey:' cannot be nil}}
127}
128
129void testNilArgNSMutableDictionary5(NSMutableDictionary *d, NSString* key) {
130  d[key] = 0; // expected-warning {{Dictionary object cannot be nil}}
131}
132void testNilArgNSMutableDictionary6(NSMutableDictionary *d, NSString *key) {
133  if (key)
134    ;
135  d[key] = 0; // expected-warning {{Dictionary key cannot be nil}}
136  // expected-warning@-1 {{Dictionary object cannot be nil}}
137}
138
139NSDictionary *testNilArgNSDictionary1(NSString* key) {
140  return [NSDictionary dictionaryWithObject:0 forKey:key]; // expected-warning {{Argument to 'NSDictionary' method 'dictionaryWithObject:forKey:' cannot be nil}}
141}
142NSDictionary *testNilArgNSDictionary2(NSObject *obj) {
143  return [NSDictionary dictionaryWithObject:obj forKey:0]; // expected-warning {{Argument to 'NSDictionary' method 'dictionaryWithObject:forKey:' cannot be nil}}
144}
145