llvm-project/clang/test/SemaObjC/nullable-result.m
Aaron Ballman 7deaeb2a05 Use functions with prototypes when appropriate; NFC
A significant number of our tests in C accidentally use functions
without prototypes. This patch converts the function signatures to have
a prototype for the situations where the test is not specific to K&R C
declarations. e.g.,

  void func();

becomes

  void func(void);

This is the fourth batch of tests being updated (there are a significant
number of other tests left to be updated).
2022-02-07 15:29:36 -05:00

37 lines
1.6 KiB
Objective-C

// RUN: %clang_cc1 -verify -fsyntax-only -fblocks -Wnullable-to-nonnull-conversion %s
// RUN: %clang_cc1 -xobjective-c++ -verify -fsyntax-only -fblocks -Wnullable-to-nonnull-conversion %s
@class X;
@class NSError;
_Static_assert(__has_feature(nullability_nullable_result), "");
@interface SomeClass
-(void)async_get:(void (^)(X *_Nullable_result rptr, NSError *err))completionHandler;
@end
void call(SomeClass *sc) {
[sc async_get:^(X *_Nullable_result rptr, NSError *err) {}];
[sc async_get:^(X *_Nullable rptr, NSError *err) {}];
}
void test_conversion(void) {
X *_Nullable_result nr;
X *_Nonnull l = nr; // expected-warning{{implicit conversion from nullable pointer 'X * _Nullable_result' to non-nullable pointer type 'X * _Nonnull'}}
(void)^(X * _Nullable_result p) {
X *_Nonnull l = p; // expected-warning{{implicit conversion from nullable pointer 'X * _Nullable_result' to non-nullable pointer type 'X * _Nonnull'}}
};
}
void test_dup(void) {
id _Nullable_result _Nullable_result a; // expected-warning {{duplicate nullability specifier _Nullable_result}}
id _Nullable _Nullable_result b; // expected-error{{nullability specifier _Nullable_result conflicts with existing specifier '_Nullable'}}
id _Nullable_result _Nonnull c; // expected-error{{nullability specifier '_Nonnull' conflicts with existing specifier _Nullable_result}}
}
@interface NoContextSensitive
-(nullable_result id)m; // expected-error {{expected a type}}
@property(assign, nullable_result) id p; // expected-error{{unknown property attribute 'nullable_result'}}
@end