forked from OSchip/llvm-project
70 lines
2.3 KiB
Objective-C
70 lines
2.3 KiB
Objective-C
#include "nonnull.h"
|
|
|
|
// RUN: %clang_cc1 -fblocks -fsyntax-only -verify %s
|
|
|
|
@class NSObject;
|
|
|
|
NONNULL_ATTR
|
|
int f1(int x); // no warning
|
|
int f2(int *x) __attribute__ ((nonnull (1)));
|
|
int f3(int *x) __attribute__ ((nonnull (0))); // expected-error {{'nonnull' attribute parameter 1 is out of bounds}}
|
|
int f4(int *x, int *y) __attribute__ ((nonnull (1,2)));
|
|
int f5(int *x, int *y) __attribute__ ((nonnull (2,1)));
|
|
int f6(NSObject *x) __attribute__ ((nonnull (1))); // no-warning
|
|
int f7(NSObject *x) __attribute__ ((nonnull)); // no-warning
|
|
|
|
|
|
extern void func1 (void (^block1)(), void (^block2)(), int) __attribute__((nonnull));
|
|
|
|
extern void func3 (void (^block1)(), int, void (^block2)(), int)
|
|
__attribute__((nonnull(1,3)));
|
|
|
|
extern void func4 (void (^block1)(), void (^block2)()) __attribute__((nonnull(1)))
|
|
__attribute__((nonnull(2)));
|
|
|
|
void func6();
|
|
void func7();
|
|
|
|
void
|
|
foo (int i1, int i2, int i3, void (^cp1)(), void (^cp2)(), void (^cp3)())
|
|
{
|
|
func1(cp1, cp2, i1);
|
|
|
|
func1(0, cp2, i1); // expected-warning {{null passed to a callee which requires a non-null argument}}
|
|
func1(cp1, 0, i1); // expected-warning {{null passed to a callee which requires a non-null argument}}
|
|
func1(cp1, cp2, 0);
|
|
|
|
|
|
func3(0, i2, cp3, i3); // expected-warning {{null passed to a callee which requires a non-null argument}}
|
|
func3(cp3, i2, 0, i3); // expected-warning {{null passed to a callee which requires a non-null argument}}
|
|
|
|
func4(0, cp1); // expected-warning {{null passed to a callee which requires a non-null argument}}
|
|
func4(cp1, 0); // expected-warning {{null passed to a callee which requires a non-null argument}}
|
|
|
|
// Shouldn't these emit warnings? Clang doesn't, and neither does GCC. It
|
|
// seems that the checking should handle Objective-C pointers.
|
|
func6((NSObject*) 0); // no-warning
|
|
func7((NSObject*) 0); // no-warning
|
|
}
|
|
|
|
void func5(int) NONNULL_ATTR; // no warning
|
|
|
|
// rdar://6857843
|
|
struct dispatch_object_s {
|
|
int x;
|
|
};
|
|
|
|
typedef union {
|
|
long first;
|
|
struct dispatch_object_s *_do;
|
|
} dispatch_object_t __attribute__((transparent_union));
|
|
|
|
__attribute__((nonnull))
|
|
void _dispatch_queue_push_list(dispatch_object_t _head); // no warning
|
|
|
|
void func6(dispatch_object_t _head) {
|
|
_dispatch_queue_push_list(0); // expected-warning {{null passed to a callee which requires a non-null argument}}
|
|
_dispatch_queue_push_list(_head._do); // no warning
|
|
}
|
|
|