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// 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
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