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 | |