|  | void g1(int * _Nonnull); | 
|  |  | 
|  | void g2(int (^block)(int, int)); // expected-warning{{block pointer is missing a nullability type specifier}} | 
|  | // expected-note@-1 {{insert '_Nullable' if the block pointer may be null}} | 
|  | // expected-note@-2 {{insert '_Nonnull' if the block pointer should never be null}} | 
|  |  | 
|  | void g3(const | 
|  | id // expected-warning{{missing a nullability type specifier}} | 
|  | volatile | 
|  | // expected-note@-1 {{insert '_Nullable' if the pointer may be null}} | 
|  | // expected-note@-2 {{insert '_Nonnull' if the pointer should never be null}} | 
|  | * // expected-warning{{missing a nullability type specifier}} | 
|  | // expected-note@-1 {{insert '_Nullable' if the pointer may be null}} | 
|  | // expected-note@-2 {{insert '_Nonnull' if the pointer should never be null}} | 
|  | ); | 
|  |  | 
|  | @interface SomeClass | 
|  | @property (retain,nonnull) id property1; | 
|  | @property (retain,nullable) SomeClass *property2; | 
|  | - (nullable SomeClass *)method1; | 
|  | - (void)method2:(nonnull SomeClass *)param; | 
|  | @property (readonly, weak) SomeClass *property3; // expected-warning{{missing a nullability type specifier}} | 
|  | // expected-note@-1 {{insert '_Nullable' if the pointer may be null}} | 
|  | // expected-note@-2 {{insert '_Nonnull' if the pointer should never be null}} | 
|  | @end | 
|  |  | 
|  | @interface SomeClass () | 
|  | @property (readonly, weak) SomeClass *property4; // expected-warning{{missing a nullability type specifier}} | 
|  | // expected-note@-1 {{insert '_Nullable' if the pointer may be null}} | 
|  | // expected-note@-2 {{insert '_Nonnull' if the pointer should never be null}} | 
|  | @end |