CheckNSError.m revision 3397e467f5f20fb0c54fc1a30f99c2559661938a 
1// RUN: clang -checker-cfref -verify %s
2// XFAIL
3
4typedef signed char BOOL;
5typedef int NSInteger;
6typedef struct _NSZone NSZone;
7@class NSInvocation, NSMethodSignature, NSCoder, NSString, NSEnumerator;
8@protocol NSObject  - (BOOL)isEqual:(id)object; @end
9@protocol NSCopying  - (id)copyWithZone:(NSZone *)zone; @end
10@protocol NSCoding  - (void)encodeWithCoder:(NSCoder *)aCoder; @end
11@interface NSObject <NSObject> {} @end
12@class NSDictionary;
13@interface NSError : NSObject <NSCopying, NSCoding> {}
14+ (id)errorWithDomain:(NSString *)domain code:(NSInteger)code userInfo:(NSDictionary *)dict;
15@end
16extern NSString * const NSXMLParserErrorDomain ;
17
18@interface A
19- (void)myMethodWhichMayFail:(NSError **)error;
20- (BOOL)myMethodWhichMayFail2:(NSError **)error;
21@end
22
23@implementation A
24- (void)myMethodWhichMayFail:(NSError **)error {   // expected-warning: {{Method accepting NSError** should have a non-void return value to indicate whether or not an error occured.}}
25  *error = [NSError errorWithDomain:@"domain" code:1 userInfo:0]; // expected-warning: {{Potential null dereference.}}
26}
27
28- (BOOL)myMethodWhichMayFail2:(NSError **)error {  // no-warning
29  if (error) *error = [NSError errorWithDomain:@"domain" code:1 userInfo:0]; // no-warning
30  return 0;
31}
32@end
33
34struct __CFError {};
35typedef struct __CFError* CFErrorRef;
36
37void foo(CFErrorRef* error) { // expected-warning{{Function accepting CFErrorRef* should have a non-void return value to indicate whether or not an error occured.}}
38  *error = 0;  // expected-warning{{Potential null dereference.}}
39}
40
41int bar(CFErrorRef* error) {
42  if (error) *error = 0;
43  return 0;
44}
45