| // RUN: %clang_cc1 -fsyntax-only -verify %s |
| // rdar://9584012 |
| |
| typedef struct { |
| char *str; |
| } Class; |
| |
| typedef union { |
| Class *object; |
| } Instance __attribute__((transparent_union)); |
| |
| __attribute__((nonnull(1))) void Class_init(Instance this, char *str) { |
| this.object->str = str; |
| } |
| |
| int main(void) { |
| Class *obj; |
| Class_init(0, "Hello World"); // expected-warning {{null passed to a callee which requires a non-null argument}} |
| Class_init(obj, "Hello World"); |
| } |
| |
| void foo(const char *str) __attribute__((nonnull("foo"))); // expected-error{{'nonnull' attribute requires parameter 1 to be an integer constant}} |
| void bar(int i) __attribute__((nonnull(1))); // expected-warning {{'nonnull' attribute only applies to pointer arguments}} expected-warning {{'nonnull' attribute applied to function with no pointer arguments}} |
| |
| void baz(__attribute__((nonnull)) const char *str); |
| void baz2(__attribute__((nonnull(1))) const char *str); // expected-warning {{'nonnull' attribute when used on parameters takes no arguments}} |
| void baz3(__attribute__((nonnull)) int x); // expected-warning {{'nonnull' attribute only applies to pointer arguments}} |
| |
| void test_baz() { |
| baz(0); // expected-warning {{null passed to a callee which requires a non-null argument}} |
| baz2(0); // no-warning |
| baz3(0); // no-warning |
| } |
| |
| void test_void_returns_nonnull(void) __attribute__((returns_nonnull)); // expected-warning {{'returns_nonnull' attribute only applies to return values that are pointers}} |
| int test_int_returns_nonnull(void) __attribute__((returns_nonnull)); // expected-warning {{'returns_nonnull' attribute only applies to return values that are pointers}} |
| void *test_ptr_returns_nonnull(void) __attribute__((returns_nonnull)); // no-warning |
| |
| int i __attribute__((nonnull)); // expected-warning {{'nonnull' attribute only applies to functions, methods, and parameters}} |
| int j __attribute__((returns_nonnull)); // expected-warning {{'returns_nonnull' attribute only applies to functions and methods}} |
| void *test_no_fn_proto() __attribute__((returns_nonnull)); // no-warning |
| void *test_with_fn_proto(void) __attribute__((returns_nonnull)); // no-warning |
| |
| __attribute__((returns_nonnull)) |
| void *test_bad_returns_null(void) { |
| return 0; // expected-warning {{null returned from function that requires a non-null return value}} |
| } |
| |
| void PR18795(int (*g)(const char *h, ...) __attribute__((nonnull(1))) __attribute__((nonnull))) { |
| g(0); // expected-warning{{null passed to a callee which requires a non-null argument}} |
| } |
| void PR18795_helper() { |
| PR18795(0); // expected-warning{{null passed to a callee which requires a non-null argument}} |
| } |
| |
| |