57 lines
2.2 KiB
Objective-C
57 lines
2.2 KiB
Objective-C
// RUN: %clang_cc1 -analyze -analyzer-checker=core -analyzer-store=region -verify %s
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//===----------------------------------------------------------------------===//
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// The following code is reduced using delta-debugging from
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// Foundation.h (Mac OS X).
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//
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// It includes the basic definitions for the test cases below.
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// Not directly including Foundation.h directly makes this test case
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// both svelte and portable to non-Mac platforms.
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//===----------------------------------------------------------------------===//
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typedef signed char BOOL;
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typedef unsigned int NSUInteger;
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typedef struct _NSZone NSZone;
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@class NSInvocation, NSMethodSignature, NSCoder, NSString, NSEnumerator;
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@protocol NSObject - (BOOL)isEqual:(id)object; @end
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@protocol NSCopying - (id)copyWithZone:(NSZone *)zone; @end
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@protocol NSMutableCopying - (id)mutableCopyWithZone:(NSZone *)zone; @end
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@protocol NSCoding - (void)encodeWithCoder:(NSCoder *)aCoder; @end
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@interface NSObject <NSObject> {} @end
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@class NSString, NSData;
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@class NSString, NSData, NSMutableData, NSMutableDictionary, NSMutableArray;
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typedef struct {} NSFastEnumerationState;
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@protocol NSFastEnumeration
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- (NSUInteger)countByEnumeratingWithState:(NSFastEnumerationState *)state objects:(id *)stackbuf count:(NSUInteger)len;
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@end
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@class NSData, NSIndexSet, NSString, NSURL;
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@interface NSArray : NSObject <NSCopying, NSMutableCopying, NSCoding, NSFastEnumeration>
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- (NSUInteger)count;
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@end
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@interface NSArray (NSArrayCreation)
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+ (id)array;
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- (NSUInteger)length;
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- (void)addObject:(id)object;
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@end
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extern NSString * const NSUndoManagerCheckpointNotification;
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//===----------------------------------------------------------------------===//
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// Test cases.
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//===----------------------------------------------------------------------===//
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unsigned f1() {
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NSString *aString;
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return [aString length]; // expected-warning {{Receiver in message expression is an uninitialized value}}
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}
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unsigned f2() {
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NSString *aString = 0;
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return [aString length]; // no-warning
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}
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void f3() {
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NSMutableArray *aArray = [NSArray array];
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NSString *aString;
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[aArray addObject:aString]; // expected-warning {{Argument in message expression is an uninitialized value}}
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}
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