mirror of
https://github.com/llvm/llvm-project.git
synced 2025-04-29 08:26:07 +00:00
49370ac7e2
Objective-C NSString has a class method stringWithUTF8String that creates a new NSString from a C string. Objective-C box expression @(...) can be used to create an NSString instead of invoking the stringWithUTF8String method directly (The compiler lowers it down to the invocation though). This commit ensures that the type of @(string-value) gets the same nullability attributes as the return type of stringWithUTF8String to ensure that the diagnostics are consistent between the two. rdar://33847186 Differential Revision: https://reviews.llvm.org/D39762 llvm-svn: 317727
29 lines
900 B
Objective-C
29 lines
900 B
Objective-C
// RUN: %clang_cc1 -fblocks -fobjc-arc -Wnullable-to-nonnull-conversion -fsyntax-only -verify -Wno-objc-root-class %s
|
|
// RUN: %clang_cc1 -fblocks -fobjc-arc -Wnullable-to-nonnull-conversion -fsyntax-only -verify -Wno-objc-root-class -DNOWARN %s
|
|
|
|
@interface NSString
|
|
|
|
+ (NSString*
|
|
#ifndef NOWARN
|
|
_Nullable
|
|
#else
|
|
_Nonnull
|
|
#endif
|
|
) stringWithUTF8String:(const char*)x;
|
|
|
|
@end
|
|
|
|
void takesNonNull(NSString * _Nonnull ptr);
|
|
|
|
void testBoxedString() {
|
|
const char *str = "hey";
|
|
takesNonNull([NSString stringWithUTF8String:str]);
|
|
takesNonNull(@(str));
|
|
#ifndef NOWARN
|
|
// expected-warning@-3 {{implicit conversion from nullable pointer 'NSString * _Nullable' to non-nullable pointer type 'NSString * _Nonnull'}}
|
|
// expected-warning@-3 {{implicit conversion from nullable pointer 'NSString * _Nullable' to non-nullable pointer type 'NSString * _Nonnull'}}
|
|
#else
|
|
// expected-no-diagnostics
|
|
#endif
|
|
}
|