llvm/clang/test/FixIt/objc-literals.m

// RUN: %clang_cc1 -fsyntax-only -verify %s
// RUN: cp %s %t
// RUN: not %clang_cc1 -fixit -x objective-c %t
// RUN: %clang_cc1 -fsyntax-only -pedantic -Werror -x objective-c %t

typedef unsigned char BOOL;

@interface NSObject
@end

@interface NSNumber : NSObject
+ (NSNumber *)numberWithChar:(char)value;
+ (NSNumber *)numberWithUnsignedChar:(unsigned char)value;
+ (NSNumber *)numberWithShort:(short)value;
+ (NSNumber *)numberWithUnsignedShort:(unsigned short)value;
+ (NSNumber *)numberWithInt:(int)value;
+ (NSNumber *)numberWithUnsignedInt:(unsigned int)value;
+ (NSNumber *)numberWithLong:(long)value;
+ (NSNumber *)numberWithUnsignedLong:(unsigned long)value;
+ (NSNumber *)numberWithLongLong:(long long)value;
+ (NSNumber *)numberWithUnsignedLongLong:(unsigned long long)value;
+ (NSNumber *)numberWithFloat:(float)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 fixes(void) {
  id arr = @[
    17, // expected-error{{numeric literal must be prefixed by '@' in a collection}}
    'a', // expected-error{{character literal must be prefixed by '@'}}
    "blah" // expected-error{{string literal must be prefixed by '@'}}
  ];
}