1// RUN: %clang_cc1 -verify -fsyntax-only -fblocks -Wnullable-to-nonnull-conversion %s 2// RUN: %clang_cc1 -xobjective-c++ -verify -fsyntax-only -fblocks -Wnullable-to-nonnull-conversion %s 3 4@class X; 5@class NSError; 6 7_Static_assert(__has_feature(nullability_nullable_result), ""); 8 9@interface SomeClass 10-(void)async_get:(void (^)(X *_Nullable_result rptr, NSError *err))completionHandler; 11@end 12 13void call(SomeClass *sc) { 14 [sc async_get:^(X *_Nullable_result rptr, NSError *err) {}]; 15 [sc async_get:^(X *_Nullable rptr, NSError *err) {}]; 16} 17 18void test_conversion() { 19 X *_Nullable_result nr; 20 X *_Nonnull l = nr; // expected-warning{{implicit conversion from nullable pointer 'X * _Nullable_result' to non-nullable pointer type 'X * _Nonnull'}} 21 22 (void)^(X * _Nullable_result p) { 23 X *_Nonnull l = p; // expected-warning{{implicit conversion from nullable pointer 'X * _Nullable_result' to non-nullable pointer type 'X * _Nonnull'}} 24 }; 25} 26 27void test_dup() { 28 id _Nullable_result _Nullable_result a; // expected-warning {{duplicate nullability specifier _Nullable_result}} 29 id _Nullable _Nullable_result b; // expected-error{{nullability specifier _Nullable_result conflicts with existing specifier '_Nullable'}} 30 id _Nullable_result _Nonnull c; // expected-error{{nullability specifier '_Nonnull' conflicts with existing specifier _Nullable_result}} 31} 32 33@interface NoContextSensitive 34-(nullable_result id)m; // expected-error {{expected a type}} 35@property(assign, nullable_result) id p; // expected-error{{unknown property attribute 'nullable_result'}} 36@end 37