| 1 | // RUN: %clang_cc1 -triple %itanium_abi_triple -fsyntax-only -fblocks -verify %s |
| 2 | // RUN: %clang_cc1 -triple %itanium_abi_triple -fdiagnostics-parseable-fixits -fblocks %s 2>&1 | FileCheck %s |
| 3 | |
| 4 | @class NSString; |
| 5 | extern void NSLog(NSString *, ...); |
| 6 | int printf(const char * restrict, ...) ; |
| 7 | |
| 8 | void test_integer_correction (int x) { |
| 9 | printf("%d", x); // no-warning |
| 10 | printf("%s", x); // expected-warning{{format specifies type 'char *' but the argument has type 'int'}} |
| 11 | printf("%lf", x); // expected-warning{{format specifies type 'double' but the argument has type 'int'}} |
| 12 | // CHECK: fix-it:"{{.*}}":{10:11-10:13}:"%d" |
| 13 | // CHECK: fix-it:"{{.*}}":{11:11-11:14}:"%d" |
| 14 | |
| 15 | NSLog(@"%d", x); // no-warning |
| 16 | NSLog(@"%s", x); // expected-warning{{format specifies type 'char *' but the argument has type 'int'}} |
| 17 | NSLog(@"%lf", x); // expected-warning{{format specifies type 'double' but the argument has type 'int'}} |
| 18 | NSLog(@"%@", x); // expected-warning{{format specifies type 'id' but the argument has type 'int'}} |
| 19 | // CHECK: fix-it:"{{.*}}":{16:11-16:13}:"%d" |
| 20 | // CHECK: fix-it:"{{.*}}":{17:11-17:14}:"%d" |
| 21 | // CHECK: fix-it:"{{.*}}":{18:11-18:13}:"%d" |
| 22 | } |
| 23 | |
| 24 | void test_string_correction (char *x) { |
| 25 | printf("%d", x); // expected-warning{{format specifies type 'int' but the argument has type 'char *'}} |
| 26 | printf("%s", x); // no-warning |
| 27 | printf("%lf", x); // expected-warning{{format specifies type 'double' but the argument has type 'char *'}} |
| 28 | // CHECK: fix-it:"{{.*}}":{25:11-25:13}:"%s" |
| 29 | // CHECK: fix-it:"{{.*}}":{27:11-27:14}:"%s" |
| 30 | |
| 31 | NSLog(@"%d", x); // expected-warning{{format specifies type 'int' but the argument has type 'char *'}} |
| 32 | NSLog(@"%s", x); // no-warning |
| 33 | NSLog(@"%lf", x); // expected-warning{{format specifies type 'double' but the argument has type 'char *'}} |
| 34 | NSLog(@"%@", x); // expected-warning{{format specifies type 'id' but the argument has type 'char *'}} |
| 35 | // CHECK: fix-it:"{{.*}}":{31:11-31:13}:"%s" |
| 36 | // CHECK: fix-it:"{{.*}}":{33:11-33:14}:"%s" |
| 37 | // CHECK: fix-it:"{{.*}}":{34:11-34:13}:"%s" |
| 38 | } |
| 39 | |
| 40 | void test_object_correction (id x) { |
| 41 | NSLog(@"%d", x); // expected-warning{{format specifies type 'int' but the argument has type 'id'}} |
| 42 | NSLog(@"%s", x); // expected-warning{{format specifies type 'char *' but the argument has type 'id'}} |
| 43 | NSLog(@"%lf", x); // expected-warning{{format specifies type 'double' but the argument has type 'id'}} |
| 44 | NSLog(@"%@", x); // no-warning |
| 45 | // CHECK: fix-it:"{{.*}}":{41:11-41:13}:"%@" |
| 46 | // CHECK: fix-it:"{{.*}}":{42:11-42:13}:"%@" |
| 47 | // CHECK: fix-it:"{{.*}}":{43:11-43:14}:"%@" |
| 48 | } |
| 49 | |
| 50 | typedef const struct __CFString * __attribute__((NSObject)) CFStringRef; |
| 51 | void test_cf_object_correction (CFStringRef x) { |
| 52 | NSLog(@"%d", x); // expected-warning{{format specifies type 'int' but the argument has type 'CFStringRef'}} |
| 53 | NSLog(@"%s", x); // expected-warning{{format specifies type 'char *' but the argument has type 'CFStringRef'}} |
| 54 | NSLog(@"%lf", x); // expected-warning{{format specifies type 'double' but the argument has type 'CFStringRef'}} |
| 55 | NSLog(@"%@", x); // no-warning |
| 56 | // CHECK: fix-it:"{{.*}}":{52:11-52:13}:"%@" |
| 57 | // CHECK: fix-it:"{{.*}}":{53:11-53:13}:"%@" |
| 58 | // CHECK: fix-it:"{{.*}}":{54:11-54:14}:"%@" |
| 59 | } |
| 60 | |
| 61 | typedef void (^block_t)(void); |
| 62 | void test_block_correction (block_t x) { |
| 63 | NSLog(@"%d", x); // expected-warning{{format specifies type 'int' but the argument has type 'block_t'}} |
| 64 | NSLog(@"%s", x); // expected-warning{{format specifies type 'char *' but the argument has type 'block_t'}} |
| 65 | NSLog(@"%lf", x); // expected-warning{{format specifies type 'double' but the argument has type 'block_t'}} |
| 66 | NSLog(@"%@", x); // no-warning |
| 67 | // CHECK: fix-it:"{{.*}}":{63:11-63:13}:"%@" |
| 68 | // CHECK: fix-it:"{{.*}}":{64:11-64:13}:"%@" |
| 69 | // CHECK: fix-it:"{{.*}}":{65:11-65:14}:"%@" |
| 70 | } |
| 71 | |
| 72 | void test_class_correction (Class x) { |
| 73 | NSLog(@"%d", x); // expected-warning{{format specifies type 'int' but the argument has type 'Class'}} |
| 74 | NSLog(@"%s", x); // expected-warning{{format specifies type 'char *' but the argument has type 'Class'}} |
| 75 | NSLog(@"%lf", x); // expected-warning{{format specifies type 'double' but the argument has type 'Class'}} |
| 76 | NSLog(@"%@", x); // no-warning |
| 77 | // CHECK: fix-it:"{{.*}}":{73:11-73:13}:"%@" |
| 78 | // CHECK: fix-it:"{{.*}}":{74:11-74:13}:"%@" |
| 79 | // CHECK: fix-it:"{{.*}}":{75:11-75:14}:"%@" |
| 80 | } |
| 81 | |
| 82 | |
| 83 | typedef enum : int { NSUTF8StringEncoding = 8 } NSStringEncoding; |
| 84 | void test_fixed_enum_correction(NSStringEncoding x) { |
| 85 | NSLog(@"%@", x); // expected-warning{{format specifies type 'id' but the argument has underlying type 'int'}} |
| 86 | // CHECK: fix-it:"{{.*}}":{85:11-85:13}:"%d" |
| 87 | } |
| 88 | |
| 89 | typedef __SIZE_TYPE__ size_t; |
| 90 | enum SomeSize : size_t { IntegerSize = sizeof(int) }; |
| 91 | void test_named_fixed_enum_correction(enum SomeSize x) { |
| 92 | NSLog(@"%@", x); // expected-warning{{format specifies type 'id' but the argument has underlying type 'size_t' (aka}} |
| 93 | // CHECK: fix-it:"{{.*}}":{92:11-92:13}:"%zu" |
| 94 | } |
| 95 | |
| 96 | |
| 97 | typedef unsigned char uint8_t; |
| 98 | void test_char(char c, signed char s, unsigned char u, uint8_t n) { |
| 99 | NSLog(@"%s", c); // expected-warning{{format specifies type 'char *' but the argument has type 'char'}} |
| 100 | // CHECK: fix-it:"{{.*}}":{[[@LINE-1]]:11-[[@LINE-1]]:13}:"%c" |
| 101 | |
| 102 | NSLog(@"%lf", c); // expected-warning{{format specifies type 'double' but the argument has type 'char'}} |
| 103 | // CHECK: fix-it:"{{.*}}":{[[@LINE-1]]:11-[[@LINE-1]]:14}:"%c" |
| 104 | |
| 105 | NSLog(@"%@", c); // expected-warning{{format specifies type 'id' but the argument has type 'char'}} |
| 106 | // CHECK: fix-it:"{{.*}}":{[[@LINE-1]]:11-[[@LINE-1]]:13}:"%c" |
| 107 | |
| 108 | NSLog(@"%c", c); // no-warning |
| 109 | // CHECK-NOT: fix-it:"{{.*}}":{[[@LINE-1]]:11-[[@LINE-1]]:13}:"%c" |
| 110 | |
| 111 | |
| 112 | NSLog(@"%s", s); // expected-warning{{format specifies type 'char *' but the argument has type 'signed char'}} |
| 113 | // CHECK: fix-it:"{{.*}}":{[[@LINE-1]]:11-[[@LINE-1]]:13}:"%c" |
| 114 | |
| 115 | NSLog(@"%lf", s); // expected-warning{{format specifies type 'double' but the argument has type 'signed char'}} |
| 116 | // CHECK: fix-it:"{{.*}}":{[[@LINE-1]]:11-[[@LINE-1]]:14}:"%c" |
| 117 | |
| 118 | NSLog(@"%@", s); // expected-warning{{format specifies type 'id' but the argument has type 'signed char'}} |
| 119 | // CHECK: fix-it:"{{.*}}":{[[@LINE-1]]:11-[[@LINE-1]]:13}:"%c" |
| 120 | |
| 121 | NSLog(@"%c", s); // no-warning |
| 122 | // CHECK-NOT: fix-it:"{{.*}}":{[[@LINE-1]]:11-[[@LINE-1]]:13}:"%c" |
| 123 | |
| 124 | |
| 125 | NSLog(@"%s", u); // expected-warning{{format specifies type 'char *' but the argument has type 'unsigned char'}} |
| 126 | // CHECK: fix-it:"{{.*}}":{[[@LINE-1]]:11-[[@LINE-1]]:13}:"%c" |
| 127 | |
| 128 | NSLog(@"%lf", u); // expected-warning{{format specifies type 'double' but the argument has type 'unsigned char'}} |
| 129 | // CHECK: fix-it:"{{.*}}":{[[@LINE-1]]:11-[[@LINE-1]]:14}:"%c" |
| 130 | |
| 131 | NSLog(@"%@", u); // expected-warning{{format specifies type 'id' but the argument has type 'unsigned char'}} |
| 132 | // CHECK: fix-it:"{{.*}}":{[[@LINE-1]]:11-[[@LINE-1]]:13}:"%c" |
| 133 | |
| 134 | NSLog(@"%c", u); // no-warning |
| 135 | // CHECK-NOT: fix-it:"{{.*}}":{[[@LINE-1]]:11-[[@LINE-1]]:13}:"%c" |
| 136 | |
| 137 | |
| 138 | NSLog(@"%s", n); // expected-warning{{format specifies type 'char *' but the argument has type 'uint8_t' (aka 'unsigned char')}} |
| 139 | // CHECK: fix-it:"{{.*}}":{[[@LINE-1]]:11-[[@LINE-1]]:13}:"%hhu" |
| 140 | |
| 141 | NSLog(@"%lf", n); // expected-warning{{format specifies type 'double' but the argument has type 'uint8_t' (aka 'unsigned char')}} |
| 142 | // CHECK: fix-it:"{{.*}}":{[[@LINE-1]]:11-[[@LINE-1]]:14}:"%hhu" |
| 143 | |
| 144 | NSLog(@"%@", n); // expected-warning{{format specifies type 'id' but the argument has type 'uint8_t' (aka 'unsigned char')}} |
| 145 | // CHECK: fix-it:"{{.*}}":{[[@LINE-1]]:11-[[@LINE-1]]:13}:"%hhu" |
| 146 | |
| 147 | NSLog(@"%c", n); // no-warning |
| 148 | // CHECK-NOT: fix-it:"{{.*}}":{[[@LINE-1]]:11-[[@LINE-1]]:13}:"%hhu" |
| 149 | |
| 150 | |
| 151 | NSLog(@"%s", 'a'); // expected-warning{{format specifies type 'char *' but the argument has type 'char'}} |
| 152 | // CHECK: fix-it:"{{.*}}":{[[@LINE-1]]:11-[[@LINE-1]]:13}:"%c" |
| 153 | |
| 154 | NSLog(@"%lf", 'a'); // expected-warning{{format specifies type 'double' but the argument has type 'char'}} |
| 155 | // CHECK: fix-it:"{{.*}}":{[[@LINE-1]]:11-[[@LINE-1]]:14}:"%c" |
| 156 | |
| 157 | NSLog(@"%@", 'a'); // expected-warning{{format specifies type 'id' but the argument has type 'char'}} |
| 158 | // CHECK: fix-it:"{{.*}}":{[[@LINE-1]]:11-[[@LINE-1]]:13}:"%c" |
| 159 | |
| 160 | NSLog(@"%c", 'a'); // no-warning |
| 161 | // CHECK-NOT: fix-it:"{{.*}}":{[[@LINE-1]]:11-[[@LINE-1]]:13}:"%c" |
| 162 | |
| 163 | |
| 164 | NSLog(@"%s", 'abcd'); // expected-warning{{format specifies type 'char *' but the argument has type 'int'}} |
| 165 | // CHECK: fix-it:"{{.*}}":{[[@LINE-1]]:11-[[@LINE-1]]:13}:"%d" |
| 166 | |
| 167 | NSLog(@"%lf", 'abcd'); // expected-warning{{format specifies type 'double' but the argument has type 'int'}} |
| 168 | // CHECK: fix-it:"{{.*}}":{[[@LINE-1]]:11-[[@LINE-1]]:14}:"%d" |
| 169 | |
| 170 | NSLog(@"%@", 'abcd'); // expected-warning{{format specifies type 'id' but the argument has type 'int'}} |
| 171 | // CHECK: fix-it:"{{.*}}":{[[@LINE-1]]:11-[[@LINE-1]]:13}:"%d" |
| 172 | } |
| 173 | |
| 174 | void multichar_constants_false_negative() { |
| 175 | // The value of a multi-character constant is implementation-defined, but |
| 176 | // almost certainly shouldn't be printed with %c. However, the current |
| 177 | // type-checker expects %c to correspond to an integer argument, because |
| 178 | // many C library functions like fgetc() actually return an int (using -1 |
| 179 | // as a sentinel). |
| 180 | NSLog(@"%c", 'abcd'); // missing-warning{{format specifies type 'char' but the argument has type 'int'}} |
| 181 | // CHECK-NOT: fix-it:"{{.*}}":{[[@LINE-1]]:11-[[@LINE-1]]:13}:"%d" |
| 182 | } |
| 183 | |
| 184 | |
| 185 | void test_percent_C() { |
| 186 | const unsigned short data = 'a'; |
| 187 | NSLog(@"%C", data); // no-warning |
| 188 | |
| 189 | NSLog(@"%C", 0x260300); // expected-warning{{format specifies type 'unichar' (aka 'unsigned short') but the argument has type 'int'}} |
| 190 | // CHECK-NOT: fix-it:"{{.*}}":{[[@LINE-1]]:11-[[@LINE-1]]:13}:"%d" |
| 191 | // CHECK: fix-it:"{{.*}}":{[[@LINE-2]]:16-[[@LINE-2]]:16}:"(unsigned short)" |
| 192 | |
| 193 | typedef unsigned short unichar; |
| 194 | |
| 195 | NSLog(@"%C", 0x260300); // expected-warning{{format specifies type 'unichar' (aka 'unsigned short') but the argument has type 'int'}} |
| 196 | // CHECK-NOT: fix-it:"{{.*}}":{[[@LINE-1]]:11-[[@LINE-1]]:13}:"%d" |
| 197 | // CHECK: fix-it:"{{.*}}":{[[@LINE-2]]:16-[[@LINE-2]]:16}:"(unichar)" |
| 198 | |
| 199 | NSLog(@"%C", data ? 0x2F0000 : 0x260300); // expected-warning{{format specifies type 'unichar' (aka 'unsigned short') but the argument has type 'int'}} |
| 200 | // CHECK-NOT: fix-it:"{{.*}}":{[[@LINE-1]]:11-[[@LINE-1]]:13}:"%d" |
| 201 | // CHECK: fix-it:"{{.*}}":{[[@LINE-2]]:16-[[@LINE-2]]:16}:"(unichar)(" |
| 202 | // CHECK: fix-it:"{{.*}}":{[[@LINE-3]]:42-[[@LINE-3]]:42}:")" |
| 203 | |
| 204 | NSLog(@"%C", 0.0); // expected-warning{{format specifies type 'unichar' (aka 'unsigned short') but the argument has type 'double'}} |
| 205 | // CHECK: fix-it:"{{.*}}":{[[@LINE-1]]:11-[[@LINE-1]]:13}:"%f" |
| 206 | // CHECK-NOT: fix-it:"{{.*}}":{[[@LINE-2]]:16-[[@LINE-2]]:16}:"(unichar)" |
| 207 | |
| 208 | NSLog(@"%C", (char)0x260300); // expected-warning{{format specifies type 'unichar' (aka 'unsigned short') but the argument has type 'char'}} |
| 209 | // CHECK: fix-it:"{{.*}}":{[[@LINE-1]]:11-[[@LINE-1]]:13}:"%c" |
| 210 | // CHECK-NOT: fix-it:"{{.*}}":{[[@LINE-2]]:16-[[@LINE-2]]:22}:"(unichar)" |
| 211 | |
| 212 | NSLog(@"%C", 'a'); // expected-warning{{format specifies type 'unichar' (aka 'unsigned short') but the argument has type 'char'}} |
| 213 | // CHECK: fix-it:"{{.*}}":{[[@LINE-1]]:11-[[@LINE-1]]:13}:"%c" |
| 214 | // CHECK-NOT: fix-it:"{{.*}}":{[[@LINE-2]]:16-[[@LINE-2]]:22}:"(unichar)" |
| 215 | } |
| 216 | |
| 217 | |
| 218 | void testSignedness(long i, unsigned long u) { |
| 219 | printf("%d", u); // expected-warning{{format specifies type 'int' but the argument has type 'unsigned long'}} |
| 220 | printf("%i", u); // expected-warning{{format specifies type 'int' but the argument has type 'unsigned long'}} |
| 221 | printf("%u", i); // expected-warning{{format specifies type 'unsigned int' but the argument has type 'long'}} |
| 222 | |
| 223 | // CHECK: fix-it:"{{.*}}":{[[@LINE-4]]:11-[[@LINE-4]]:13}:"%lu" |
| 224 | // CHECK: fix-it:"{{.*}}":{[[@LINE-4]]:11-[[@LINE-4]]:13}:"%lu" |
| 225 | // CHECK: fix-it:"{{.*}}":{[[@LINE-4]]:11-[[@LINE-4]]:13}:"%ld" |
| 226 | |
| 227 | printf("%+d", u); // expected-warning{{format specifies type 'int' but the argument has type 'unsigned long'}} |
| 228 | |
| 229 | // CHECK: fix-it:"{{.*}}":{[[@LINE-2]]:11-[[@LINE-2]]:14}:"%+ld" |
| 230 | } |
| 231 | |
| 232 | void testSizeTypes() { |
| 233 | printf("%zu", 0.f); // expected-warning-re{{format specifies type 'size_t' (aka '{{.+}}') but the argument has type 'float'}} |
| 234 | // CHECK: fix-it:"{{.*}}":{[[@LINE-1]]:11-[[@LINE-1]]:14}:"%f" |
| 235 | |
| 236 | printf("%zd", 0.f); // expected-warning-re{{format specifies type 'ssize_t' (aka '{{.+}}') but the argument has type 'float'}} |
| 237 | // CHECK: fix-it:"{{.*}}":{[[@LINE-1]]:11-[[@LINE-1]]:14}:"%f" |
| 238 | |
| 239 | short x; |
| 240 | printf("%zn", &x); // expected-warning-re{{format specifies type 'ssize_t *' (aka '{{.+}}') but the argument has type 'short *'}} |
| 241 | // PrintfSpecifier::fixType doesn't handle %n, so a fix-it is not emitted, |
| 242 | // see the comment in PrintfSpecifier::fixType in PrintfFormatString.cpp. |
| 243 | } |
| 244 | |
| 245 | typedef __PTRDIFF_TYPE__ ptrdiff_t; |
| 246 | #define __UNSIGNED_PTRDIFF_TYPE__ \ |
| 247 | __typeof__(_Generic((__PTRDIFF_TYPE__)0, \ |
| 248 | long long int : (unsigned long long int)0, \ |
| 249 | long int : (unsigned long int)0, \ |
| 250 | int : (unsigned int)0, \ |
| 251 | short : (unsigned short)0, \ |
| 252 | signed char : (unsigned char)0)) |
| 253 | |
| 254 | void testPtrDiffTypes() { |
| 255 | __UNSIGNED_PTRDIFF_TYPE__ p1 = 0; |
| 256 | printf("%tu", p1); // No warning. |
| 257 | |
| 258 | printf("%tu", 0.f); // expected-warning-re{{format specifies type 'unsigned ptrdiff_t' (aka '{{.+}}') but the argument has type 'float'}} |
| 259 | // CHECK: fix-it:"{{.*}}":{[[@LINE-1]]:11-[[@LINE-1]]:14}:"%f" |
| 260 | |
| 261 | ptrdiff_t p2 = 0; |
| 262 | printf("%td", p2); // No warning. |
| 263 | |
| 264 | printf("%td", 0.f); // expected-warning-re{{format specifies type 'ptrdiff_t' (aka '{{.+}}') but the argument has type 'float'}} |
| 265 | // CHECK: fix-it:"{{.*}}":{[[@LINE-1]]:11-[[@LINE-1]]:14}:"%f" |
| 266 | |
| 267 | ptrdiff_t p3 = 0; |
| 268 | printf("%tn", &p3); // No warning. |
| 269 | |
| 270 | short x; |
| 271 | printf("%tn", &x); // expected-warning-re{{format specifies type 'ptrdiff_t *' (aka '{{.+}}') but the argument has type 'short *'}} |
| 272 | // PrintfSpecifier::fixType doesn't handle %n, so a fix-it is not emitted, |
| 273 | // see the comment in PrintfSpecifier::fixType in PrintfFormatString.cpp. |
| 274 | } |
| 275 | |
| 276 | void testEnum() { |
| 277 | typedef enum { |
| 278 | ImplicitA = 1, |
| 279 | ImplicitB = 2 |
| 280 | } Implicit; |
| 281 | |
| 282 | typedef enum { |
| 283 | ImplicitLLA = 0, |
| 284 | ImplicitLLB = ~0ULL |
| 285 | } ImplicitLongLong; |
| 286 | |
| 287 | typedef enum : short { |
| 288 | ExplicitA = 0, |
| 289 | ExplicitB |
| 290 | } ExplicitShort; |
| 291 | |
| 292 | printf("%f", (Implicit)0); // expected-warning{{format specifies type 'double' but the argument has underlying type}} |
| 293 | // CHECK: fix-it:"{{.*}}":{[[@LINE-1]]:11-[[@LINE-1]]:13}:"%{{[du]}}" |
| 294 | |
| 295 | printf("%f", (ImplicitLongLong)0); // expected-warning{{format specifies type 'double' but the argument has underlying type}} |
| 296 | // CHECK: fix-it:"{{.*}}":{[[@LINE-1]]:11-[[@LINE-1]]:13}:"%{{l*[du]}}" |
| 297 | |
| 298 | printf("%f", (ExplicitShort)0); // expected-warning{{format specifies type 'double' but the argument has underlying type 'short'}} |
| 299 | // CHECK: fix-it:"{{.*}}":{[[@LINE-1]]:11-[[@LINE-1]]:13}:"%hd" |
| 300 | } |
| 301 | |