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Objective-C collection literals produce unspecialized NSArray/NSDictionary objects that can then be implicitly converted to specialized versions of these types. In such cases, check that the elements in the collection are suitable for the specialized collection. Part of rdar://problem/6294649. llvm-svn: 241546
53 lines
2.0 KiB
Objective-C
53 lines
2.0 KiB
Objective-C
// RUN: %clang_cc1 -fsyntax-only -verify %s
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// RUN: %clang_cc1 -x objective-c++ -fsyntax-only -verify %s
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#if __LP64__ || (TARGET_OS_EMBEDDED && !TARGET_OS_IPHONE) || TARGET_OS_WIN32 || NS_BUILD_32_LIKE_64
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typedef unsigned long NSUInteger;
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#else
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typedef unsigned int NSUInteger;
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#endif
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@protocol NSObject
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@end
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@protocol NSCopying
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@end
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__attribute__((objc_root_class))
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@interface NSObject <NSObject>
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@end
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@interface NSString : NSObject <NSCopying>
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@end
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@interface NSNumber : NSObject <NSCopying>
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+ (NSNumber *)numberWithInt:(int)value;
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@end
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@interface NSArray<T> : NSObject <NSCopying>
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+ (instancetype)arrayWithObjects:(const T [])objects count:(NSUInteger)cnt;
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@end
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@interface NSDictionary<K, V> : NSObject <NSCopying>
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+ (instancetype)dictionaryWithObjects:(const V [])objects forKeys:(const K [])keys count:(NSUInteger)cnt;
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@end
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void testArrayLiteral(void) {
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NSArray<NSString *> *array1 = @[@"hello",
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@1, // expected-warning{{of type 'NSNumber *' is not compatible with array element type 'NSString *'}}
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@"world",
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@[@1, @2]]; // expected-warning{{of type 'NSArray *' is not compatible with array element type 'NSString *'}}
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NSArray<NSArray<NSString *> *> *array2 = @[@[@"hello", @"world"],
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@"blah", // expected-warning{{object of type 'NSString *' is not compatible with array element type 'NSArray<NSString *> *'}}
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@[@1]]; // expected-warning{{object of type 'NSNumber *' is not compatible with array element type 'NSString *'}}
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}
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void testDictionaryLiteral(void) {
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NSDictionary<NSString *, NSNumber *> *dict1 = @{
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@"hello" : @17,
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@18 : @18, // expected-warning{{object of type 'NSNumber *' is not compatible with dictionary key type 'NSString *'}}
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@"world" : @"blah" // expected-warning{{object of type 'NSString *' is not compatible with dictionary value type 'NSNumber *'}}
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};
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}
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