| // 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; |
| } |
| |
| |