| Jordan Rose | e359d01 | 2014-02-26 01:20:19 +0000 | [diff] [blame] | 1 | // RUN: %clang_cc1 -analyze -analyzer-checker=core -w -verify %s |
| Jordan Rose | 682b316 | 2012-07-02 19:28:21 +0000 | [diff] [blame] | 2 | |
| 3 | @interface MyObject |
| 4 | - (void)takePointer:(void *)ptr __attribute__((nonnull(1))); |
| Ted Kremenek | f0ae7d0 | 2014-01-17 07:15:35 +0000 | [diff] [blame] | 5 | - (void)takePointerArg:(void *)__attribute__((nonnull)) ptr; |
| 6 | |
| Jordan Rose | 682b316 | 2012-07-02 19:28:21 +0000 | [diff] [blame] | 7 | @end |
| 8 | |
| 9 | void testNonNullMethod(int *p, MyObject *obj) { |
| 10 | if (p) |
| 11 | return; |
| 12 | [obj takePointer:p]; // expected-warning{{nonnull}} |
| 13 | } |
| 14 | |
| 15 | |
| 16 | @interface Subclass : MyObject |
| 17 | // [[nonnull]] is an inherited attribute. |
| 18 | - (void)takePointer:(void *)ptr; |
| 19 | @end |
| 20 | |
| 21 | void testSubclass(int *p, Subclass *obj) { |
| 22 | if (p) |
| 23 | return; |
| 24 | [obj takePointer:p]; // expected-warning{{nonnull}} |
| 25 | } |
| Ted Kremenek | f0ae7d0 | 2014-01-17 07:15:35 +0000 | [diff] [blame] | 26 | |
| 27 | void testSubclassArg(int *p, Subclass *obj) { |
| 28 | if (p) |
| 29 | return; |
| 30 | [obj takePointerArg:p]; // expected-warning{{nonnull}} |
| 31 | } |
| 32 | |
| Jordan Rose | e359d01 | 2014-02-26 01:20:19 +0000 | [diff] [blame] | 33 | |
| 34 | union rdar16153464_const_cp_t { |
| 35 | const struct rdar16153464_cczp *zp; |
| 36 | const struct rdar16153464_cczp_prime *prime; |
| 37 | } __attribute__((transparent_union)); |
| 38 | |
| 39 | struct rdar16153464_header { |
| 40 | union rdar16153464_const_cp_t cp; |
| 41 | unsigned char pad[16 - sizeof(union rdar16153464_const_cp_t *)]; |
| 42 | } __attribute__((aligned(16))); |
| 43 | |
| 44 | |
| 45 | struct rdar16153464_full_ctx { |
| 46 | struct rdar16153464_header hdr; |
| 47 | } __attribute__((aligned(16))); |
| 48 | |
| 49 | |
| 50 | struct rdar16153464_pub_ctx { |
| 51 | struct rdar16153464_header hdr; |
| 52 | } __attribute__((aligned(16))); |
| 53 | |
| 54 | |
| 55 | union rdar16153464_full_ctx_t { |
| 56 | struct rdar16153464_full_ctx *_full; |
| 57 | struct rdar16153464_header *hdr; |
| 58 | struct rdar16153464_body *body; |
| 59 | struct rdar16153464_public *pub; |
| 60 | } __attribute__((transparent_union)); |
| 61 | |
| 62 | union rdar16153464_pub_ctx_t { |
| 63 | struct rdar16153464_pub_ctx *_pub; |
| 64 | struct rdar16153464_full_ctx *_full; |
| 65 | struct rdar16153464_header *hdr; |
| 66 | struct rdar16153464_body *body; |
| 67 | struct rdar16153464_public *pub; |
| 68 | union rdar16153464_full_ctx_t innert; |
| 69 | } __attribute__((transparent_union)); |
| 70 | |
| 71 | int rdar16153464(union rdar16153464_full_ctx_t inner) |
| 72 | { |
| 73 | extern void rdar16153464_check(union rdar16153464_pub_ctx_t outer) __attribute((nonnull(1))); |
| 74 | rdar16153464_check((union rdar16153464_pub_ctx_t){ .innert = inner }); // no-warning |
| 75 | rdar16153464_check(inner); // no-warning |
| 76 | rdar16153464_check(0); // expected-warning{{nonnull}} |
| 77 | } |
| Richard Smith | 9257215 | 2014-08-27 19:05:47 +0000 | [diff] [blame] | 78 | |
| 79 | void testVararg(int k, void *p) { |
| 80 | extern void testVararg_check(int, ...) __attribute__((nonnull)); |
| 81 | void *n = 0; |
| 82 | testVararg_check(0); |
| 83 | testVararg_check(1, p); |
| 84 | if (k == 1) |
| 85 | testVararg_check(1, n); // expected-warning{{nonnull}} |
| 86 | testVararg_check(2, p, p); |
| 87 | if (k == 2) |
| 88 | testVararg_check(2, n, p); // expected-warning{{nonnull}} |
| 89 | if (k == 3) |
| 90 | testVararg_check(2, p, n); // expected-warning{{nonnull}} |
| 91 | } |
| 92 | |
| 93 | void testNotPtr() { |
| 94 | struct S { int a; int b; int c; } s = {}; |
| 95 | extern void testNotPtr_check(struct S, int) __attribute__((nonnull(1, 2))); |
| 96 | testNotPtr_check(s, 0); |
| 97 | } |