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// RUN: %clang_analyze_cc1 -analyzer-checker=core,osx.cocoa.NSError,osx.coreFoundation.CFError -analyzer-store=region -verify -Wno-objc-root-class %s
typedef signed char BOOL;
typedef int NSInteger;
typedef struct _NSZone NSZone;
@class NSInvocation, NSMethodSignature, NSCoder, NSString, NSEnumerator;
@protocol NSObject - (BOOL)isEqual:(id)object; @end
@protocol NSCopying - (id)copyWithZone:(NSZone *)zone; @end
@protocol NSCoding - (void)encodeWithCoder:(NSCoder *)aCoder; @end
@interface NSObject <NSObject> {} @end
@class NSDictionary;
@interface NSError : NSObject <NSCopying, NSCoding> {}
+ (id)errorWithDomain:(NSString *)domain code:(NSInteger)code userInfo:(NSDictionary *)dict;
@end
extern NSString * const NSXMLParserErrorDomain ;
@interface A
- (void)myMethodWhichMayFail:(NSError **)error;
- (BOOL)myMethodWhichMayFail2:(NSError **)error;
@end
@implementation A
- (void)myMethodWhichMayFail:(NSError **)error { // expected-warning {{Method accepting NSError** should have a non-void return value to indicate whether or not an error occurred}}
*error = [NSError errorWithDomain:@"domain" code:1 userInfo:0]; // expected-warning {{Potential null dereference}}
}
- (BOOL)myMethodWhichMayFail2:(NSError **)error { // no-warning
if (error) *error = [NSError errorWithDomain:@"domain" code:1 userInfo:0]; // no-warning
return 0;
}
@end
struct __CFError {};
typedef struct __CFError* CFErrorRef;
void foo(CFErrorRef* error) { // expected-warning {{Function accepting CFErrorRef* should have a non-void return value to indicate whether or not an error occurred}}
*error = 0; // expected-warning {{Potential null dereference}}
}
int f1(CFErrorRef* error) {
if (error) *error = 0; // no-warning
return 0;
}
int f2(CFErrorRef* error) {
if (0 != error) *error = 0; // no-warning
return 0;
}
int f3(CFErrorRef* error) {
if (error != 0) *error = 0; // no-warning
return 0;
}
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