| // RUN: %clang_cc1 -fsyntax-only -verify %s |
| |
| typedef unsigned char BOOL; |
| |
| @interface BaseObject |
| + (instancetype)new; |
| @end |
| |
| @interface NSObject : BaseObject |
| - (BOOL)isEqual:(id)other; |
| @end |
| |
| @interface NSNumber : NSObject |
| + (NSNumber *)numberWithInt:(int)value; |
| + (NSNumber *)numberWithDouble:(double)value; |
| + (NSNumber *)numberWithBool:(BOOL)value; |
| @end |
| |
| @interface NSArray : NSObject |
| + (id)arrayWithObjects:(const id [])objects count:(unsigned long)cnt; |
| @end |
| |
| @interface NSDictionary : NSObject |
| + (id)dictionaryWithObjects:(const id [])objects forKeys:(const id [])keys count:(unsigned long)cnt; |
| @end |
| |
| @interface NSString : NSObject |
| @end |
| |
| void testComparisonsWithFixits(id obj) { |
| if (obj == @"") return; // expected-error{{direct comparison of a string literal is not allowed; use -isEqual: instead}} |
| if (obj != @"") return; // expected-error{{direct comparison of a string literal is not allowed; use -isEqual: instead}} |
| if (@"" == obj) return; // expected-error{{direct comparison of a string literal is not allowed; use -isEqual: instead}} |
| if (@"" == @"") return; // expected-error{{direct comparison of a string literal is not allowed; use -isEqual: instead}} |
| |
| if (@[] == obj) return; // expected-error{{direct comparison of an array literal is not allowed; use -isEqual: instead}} |
| if (@{} == obj) return; // expected-error{{direct comparison of a dictionary literal is not allowed; use -isEqual: instead}} |
| if (@12 == obj) return; // expected-error{{direct comparison of a numeric literal is not allowed; use -isEqual: instead}} |
| if (@1.0 == obj) return; // expected-error{{direct comparison of a numeric literal is not allowed; use -isEqual: instead}} |
| if (@__objc_yes == obj) return; // expected-error{{direct comparison of a numeric literal is not allowed; use -isEqual: instead}} |
| if (@(1+1) == obj) return; // expected-error{{direct comparison of a boxed expression is not allowed; use -isEqual: instead}} |
| } |
| |
| |
| @interface BadEqualReturnString : NSString |
| - (void)isEqual:(id)other; |
| @end |
| |
| @interface BadEqualArgString : NSString |
| - (BOOL)isEqual:(int)other; |
| @end |
| |
| |
| void testComparisonsWithoutFixits() { |
| // All of these verifications use regex form to ensure we /don't/ append |
| // "use -isEqual: instead" to any of these. |
| |
| if ([BaseObject new] == @"") return; // expected-error-re{{direct comparison of a string literal is not allowed$}} |
| |
| if ([BadEqualReturnString new] == @"") return; // expected-error-re{{direct comparison of a string literal is not allowed$}} |
| if ([BadEqualArgString new] == @"") return; // expected-error-re{{direct comparison of a string literal is not allowed$}} |
| |
| if (@"" < @"") return; // expected-error-re{{direct comparison of a string literal is not allowed$}} |
| if (@"" > @"") return; // expected-error-re{{direct comparison of a string literal is not allowed$}} |
| if (@"" <= @"") return; // expected-error-re{{direct comparison of a string literal is not allowed$}} |
| if (@"" >= @"") return; // expected-error-re{{direct comparison of a string literal is not allowed$}} |
| } |
| |