llvm-project/clang/test/SemaObjCXX/nullability-pragmas.mm

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// RUN: %clang_cc1 -fsyntax-only -fblocks -I %S/Inputs %s -verify
#include "nullability-pragmas-1.h"
#include "nullability-pragmas-2.h"
#include "nullability-pragmas-generics-1.h"
#if !__has_feature(assume_nonnull)
# error assume_nonnull feature is not set
#endif
#if !__has_extension(assume_nonnull)
# error assume_nonnull extension is not set
#endif
void test_pragmas_1(A * _Nonnull a, AA * _Nonnull aa) {
f1(0); // okay: no nullability annotations
f2(0); // expected-warning{{null passed to a callee that requires a non-null argument}}
f3(0); // expected-warning{{null passed to a callee that requires a non-null argument}}
f4(0); // expected-warning{{null passed to a callee that requires a non-null argument}}
f5(0); // expected-warning{{null passed to a callee that requires a non-null argument}}
f6(0); // expected-warning{{null passed to a callee that requires a non-null argument}}
f7(0); // okay
f8(0); // okay
f9(0); // expected-warning{{null passed to a callee that requires a non-null argument}}
f10(0); // expected-warning{{null passed to a callee that requires a non-null argument}}
f11(0); // okay
f12(0); // okay
[a method1:0]; // expected-warning{{null passed to a callee that requires a non-null argument}}
f17(a); // expected-error{{no matching function for call to 'f17'}}
[a method3: a]; // expected-error{{cannot initialize a parameter of type 'NSError * _Nullable * _Nullable' with an lvalue of type 'A * _Nonnull'}}
[a method4: a]; // expected-error{{cannot initialize a parameter of type 'NSErrorPtr _Nullable * _Nullable' (aka 'NSError **') with an lvalue of type 'A * _Nonnull'}}
float *ptr;
ptr = f13(); // expected-error{{assigning to 'float *' from incompatible type 'int_ptr _Nonnull' (aka 'int *')}}
ptr = f14(); // expected-error{{assigning to 'float *' from incompatible type 'A * _Nonnull'}}
ptr = [a method1:a]; // expected-error{{assigning to 'float *' from incompatible type 'A * _Nonnull'}}
ptr = a.aProp; // expected-error{{assigning to 'float *' from incompatible type 'A * _Nonnull'}}
ptr = global_int_ptr; // expected-error{{assigning to 'float *' from incompatible type 'int * _Nonnull'}}
ptr = f15(); // expected-error{{assigning to 'float *' from incompatible type 'int * _Null_unspecified'}}
ptr = f16(); // expected-error{{assigning to 'float *' from incompatible type 'A * _Null_unspecified'}}
ptr = [a method2]; // expected-error{{assigning to 'float *' from incompatible type 'A * _Null_unspecified'}}
ptr = aa->ivar1; // expected-error{{from incompatible type 'id'}}
ptr = aa->ivar2; // expected-error{{from incompatible type 'id _Nonnull'}}
}
void test_pragmas_generics(void) {
float *fp;
NSGeneric<C *> *genC;
fp = [genC tee]; // expected-error{{from incompatible type 'C *'}}
fp = [genC maybeTee]; // expected-error{{from incompatible type 'C * _Nullable'}}
Generic_with_C genC2;
fp = genC2; // expected-error{{from incompatible type 'Generic_with_C' (aka 'NSGeneric<C *> *')}}
}