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Update Tests
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‎tests/ui/c-variadic/variadic-ffi-no-fixed-args.rs‎

Lines changed: 4 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -1,6 +1,9 @@
1+
//@ build-pass
2+
3+
// Supported since C23
4+
// https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2975.pdf
15
extern "C" {
26
fn foo(...);
3-
//~^ ERROR C-variadic function must be declared with at least one named argument
47
}
58

69
fn main() {}

‎tests/ui/c-variadic/variadic-ffi-no-fixed-args.stderr‎

Lines changed: 0 additions & 8 deletions
This file was deleted.

‎tests/ui/parser/variadic-ffi-semantic-restrictions.rs‎

Lines changed: 0 additions & 8 deletions
Original file line numberDiff line numberDiff line change
@@ -8,14 +8,12 @@ fn f1_1(x: isize, ...) {}
88

99
fn f1_2(...) {}
1010
//~^ ERROR only foreign or `unsafe extern "C"` functions may be C-variadic
11-
//~| ERROR C-variadic function must be declared with at least one named argument
1211

1312
extern "C" fn f2_1(x: isize, ...) {}
1413
//~^ ERROR only foreign or `unsafe extern "C"` functions may be C-variadic
1514

1615
extern "C" fn f2_2(...) {}
1716
//~^ ERROR only foreign or `unsafe extern "C"` functions may be C-variadic
18-
//~| ERROR C-variadic function must be declared with at least one named argument
1917

2018
extern "C" fn f2_3(..., x: isize) {}
2119
//~^ ERROR only foreign or `unsafe extern "C"` functions may be C-variadic
@@ -26,7 +24,6 @@ extern "C" fn f3_1(x: isize, ...) {}
2624

2725
extern "C" fn f3_2(...) {}
2826
//~^ ERROR only foreign or `unsafe extern "C"` functions may be C-variadic
29-
//~| ERROR C-variadic function must be declared with at least one named argument
3027

3128
extern "C" fn f3_3(..., x: isize) {}
3229
//~^ ERROR only foreign or `unsafe extern "C"` functions may be C-variadic
@@ -47,8 +44,6 @@ const extern "C" fn f4_3(..., x: isize, ...) {}
4744
//~| ERROR `...` must be the last argument of a C-variadic function
4845

4946
extern "C" {
50-
fn e_f1(...);
51-
//~^ ERROR C-variadic function must be declared with at least one named argument
5247
fn e_f2(..., x: isize);
5348
//~^ ERROR `...` must be the last argument of a C-variadic function
5449
}
@@ -60,7 +55,6 @@ impl X {
6055
//~^ ERROR only foreign or `unsafe extern "C"` functions may be C-variadic
6156
fn i_f2(...) {}
6257
//~^ ERROR only foreign or `unsafe extern "C"` functions may be C-variadic
63-
//~| ERROR C-variadic function must be declared with at least one named argument
6458
fn i_f3(..., x: isize, ...) {}
6559
//~^ ERROR only foreign or `unsafe extern "C"` functions may be C-variadic
6660
//~| ERROR `...` must be the last argument of a C-variadic function
@@ -80,10 +74,8 @@ trait T {
8074
//~^ ERROR only foreign or `unsafe extern "C"` functions may be C-variadic
8175
fn t_f3(...) {}
8276
//~^ ERROR only foreign or `unsafe extern "C"` functions may be C-variadic
83-
//~| ERROR C-variadic function must be declared with at least one named argument
8477
fn t_f4(...);
8578
//~^ ERROR only foreign or `unsafe extern "C"` functions may be C-variadic
86-
//~| ERROR C-variadic function must be declared with at least one named argument
8779
fn t_f5(..., x: isize) {}
8880
//~^ ERROR only foreign or `unsafe extern "C"` functions may be C-variadic
8981
//~| ERROR `...` must be the last argument of a C-variadic function

‎tests/ui/parser/variadic-ffi-semantic-restrictions.stderr‎

Lines changed: 35 additions & 77 deletions
Original file line numberDiff line numberDiff line change
@@ -4,104 +4,86 @@ error: only foreign or `unsafe extern "C"` functions may be C-variadic
44
LL | fn f1_1(x: isize, ...) {}
55
| ^^^
66

7-
error: C-variadic function must be declared with at least one named argument
8-
--> $DIR/variadic-ffi-semantic-restrictions.rs:9:9
9-
|
10-
LL | fn f1_2(...) {}
11-
| ^^^
12-
137
error: only foreign or `unsafe extern "C"` functions may be C-variadic
148
--> $DIR/variadic-ffi-semantic-restrictions.rs:9:9
159
|
1610
LL | fn f1_2(...) {}
1711
| ^^^
1812

1913
error: only foreign or `unsafe extern "C"` functions may be C-variadic
20-
--> $DIR/variadic-ffi-semantic-restrictions.rs:13:30
14+
--> $DIR/variadic-ffi-semantic-restrictions.rs:12:30
2115
|
2216
LL | extern "C" fn f2_1(x: isize, ...) {}
2317
| ^^^
2418

25-
error: C-variadic function must be declared with at least one named argument
26-
--> $DIR/variadic-ffi-semantic-restrictions.rs:16:20
27-
|
28-
LL | extern "C" fn f2_2(...) {}
29-
| ^^^
30-
3119
error: only foreign or `unsafe extern "C"` functions may be C-variadic
32-
--> $DIR/variadic-ffi-semantic-restrictions.rs:16:20
20+
--> $DIR/variadic-ffi-semantic-restrictions.rs:15:20
3321
|
3422
LL | extern "C" fn f2_2(...) {}
3523
| ^^^
3624

3725
error: `...` must be the last argument of a C-variadic function
38-
--> $DIR/variadic-ffi-semantic-restrictions.rs:20:20
26+
--> $DIR/variadic-ffi-semantic-restrictions.rs:18:20
3927
|
4028
LL | extern "C" fn f2_3(..., x: isize) {}
4129
| ^^^
4230

4331
error: only foreign or `unsafe extern "C"` functions may be C-variadic
44-
--> $DIR/variadic-ffi-semantic-restrictions.rs:20:20
32+
--> $DIR/variadic-ffi-semantic-restrictions.rs:18:20
4533
|
4634
LL | extern "C" fn f2_3(..., x: isize) {}
4735
| ^^^
4836

4937
error: only foreign or `unsafe extern "C"` functions may be C-variadic
50-
--> $DIR/variadic-ffi-semantic-restrictions.rs:24:30
38+
--> $DIR/variadic-ffi-semantic-restrictions.rs:22:30
5139
|
5240
LL | extern "C" fn f3_1(x: isize, ...) {}
5341
| ^^^
5442

55-
error: C-variadic function must be declared with at least one named argument
56-
--> $DIR/variadic-ffi-semantic-restrictions.rs:27:20
57-
|
58-
LL | extern "C" fn f3_2(...) {}
59-
| ^^^
60-
6143
error: only foreign or `unsafe extern "C"` functions may be C-variadic
62-
--> $DIR/variadic-ffi-semantic-restrictions.rs:27:20
44+
--> $DIR/variadic-ffi-semantic-restrictions.rs:25:20
6345
|
6446
LL | extern "C" fn f3_2(...) {}
6547
| ^^^
6648

6749
error: `...` must be the last argument of a C-variadic function
68-
--> $DIR/variadic-ffi-semantic-restrictions.rs:31:20
50+
--> $DIR/variadic-ffi-semantic-restrictions.rs:28:20
6951
|
7052
LL | extern "C" fn f3_3(..., x: isize) {}
7153
| ^^^
7254

7355
error: only foreign or `unsafe extern "C"` functions may be C-variadic
74-
--> $DIR/variadic-ffi-semantic-restrictions.rs:31:20
56+
--> $DIR/variadic-ffi-semantic-restrictions.rs:28:20
7557
|
7658
LL | extern "C" fn f3_3(..., x: isize) {}
7759
| ^^^
7860

7961
error: functions cannot be both `const` and C-variadic
80-
--> $DIR/variadic-ffi-semantic-restrictions.rs:35:1
62+
--> $DIR/variadic-ffi-semantic-restrictions.rs:32:1
8163
|
8264
LL | const unsafe extern "C" fn f4_1(x: isize, ...) {}
8365
| ^^^^^ `const` because of this ^^^ C-variadic because of this
8466

8567
error: functions cannot be both `const` and C-variadic
86-
--> $DIR/variadic-ffi-semantic-restrictions.rs:39:1
68+
--> $DIR/variadic-ffi-semantic-restrictions.rs:36:1
8769
|
8870
LL | const extern "C" fn f4_2(x: isize, ...) {}
8971
| ^^^^^ `const` because of this ^^^ C-variadic because of this
9072

9173
error: only foreign or `unsafe extern "C"` functions may be C-variadic
92-
--> $DIR/variadic-ffi-semantic-restrictions.rs:39:36
74+
--> $DIR/variadic-ffi-semantic-restrictions.rs:36:36
9375
|
9476
LL | const extern "C" fn f4_2(x: isize, ...) {}
9577
| ^^^
9678

9779
error: `...` must be the last argument of a C-variadic function
98-
--> $DIR/variadic-ffi-semantic-restrictions.rs:44:26
80+
--> $DIR/variadic-ffi-semantic-restrictions.rs:41:26
9981
|
10082
LL | const extern "C" fn f4_3(..., x: isize, ...) {}
10183
| ^^^
10284

10385
error: functions cannot be both `const` and C-variadic
104-
--> $DIR/variadic-ffi-semantic-restrictions.rs:44:1
86+
--> $DIR/variadic-ffi-semantic-restrictions.rs:41:1
10587
|
10688
LL | const extern "C" fn f4_3(..., x: isize, ...) {}
10789
| ^^^^^ ^^^ ^^^ C-variadic because of this
@@ -110,163 +92,139 @@ LL | const extern "C" fn f4_3(..., x: isize, ...) {}
11092
| `const` because of this
11193

11294
error: only foreign or `unsafe extern "C"` functions may be C-variadic
113-
--> $DIR/variadic-ffi-semantic-restrictions.rs:44:26
95+
--> $DIR/variadic-ffi-semantic-restrictions.rs:41:26
11496
|
11597
LL | const extern "C" fn f4_3(..., x: isize, ...) {}
11698
| ^^^ ^^^
11799

118-
error: C-variadic function must be declared with at least one named argument
119-
--> $DIR/variadic-ffi-semantic-restrictions.rs:50:13
120-
|
121-
LL | fn e_f1(...);
122-
| ^^^
123-
124100
error: `...` must be the last argument of a C-variadic function
125-
--> $DIR/variadic-ffi-semantic-restrictions.rs:52:13
101+
--> $DIR/variadic-ffi-semantic-restrictions.rs:47:13
126102
|
127103
LL | fn e_f2(..., x: isize);
128104
| ^^^
129105

130106
error: only foreign or `unsafe extern "C"` functions may be C-variadic
131-
--> $DIR/variadic-ffi-semantic-restrictions.rs:59:23
107+
--> $DIR/variadic-ffi-semantic-restrictions.rs:54:23
132108
|
133109
LL | fn i_f1(x: isize, ...) {}
134110
| ^^^
135111

136-
error: C-variadic function must be declared with at least one named argument
137-
--> $DIR/variadic-ffi-semantic-restrictions.rs:61:13
138-
|
139-
LL | fn i_f2(...) {}
140-
| ^^^
141-
142112
error: only foreign or `unsafe extern "C"` functions may be C-variadic
143-
--> $DIR/variadic-ffi-semantic-restrictions.rs:61:13
113+
--> $DIR/variadic-ffi-semantic-restrictions.rs:56:13
144114
|
145115
LL | fn i_f2(...) {}
146116
| ^^^
147117

148118
error: `...` must be the last argument of a C-variadic function
149-
--> $DIR/variadic-ffi-semantic-restrictions.rs:64:13
119+
--> $DIR/variadic-ffi-semantic-restrictions.rs:58:13
150120
|
151121
LL | fn i_f3(..., x: isize, ...) {}
152122
| ^^^
153123

154124
error: only foreign or `unsafe extern "C"` functions may be C-variadic
155-
--> $DIR/variadic-ffi-semantic-restrictions.rs:64:13
125+
--> $DIR/variadic-ffi-semantic-restrictions.rs:58:13
156126
|
157127
LL | fn i_f3(..., x: isize, ...) {}
158128
| ^^^ ^^^
159129

160130
error: `...` must be the last argument of a C-variadic function
161-
--> $DIR/variadic-ffi-semantic-restrictions.rs:67:13
131+
--> $DIR/variadic-ffi-semantic-restrictions.rs:61:13
162132
|
163133
LL | fn i_f4(..., x: isize, ...) {}
164134
| ^^^
165135

166136
error: only foreign or `unsafe extern "C"` functions may be C-variadic
167-
--> $DIR/variadic-ffi-semantic-restrictions.rs:67:13
137+
--> $DIR/variadic-ffi-semantic-restrictions.rs:61:13
168138
|
169139
LL | fn i_f4(..., x: isize, ...) {}
170140
| ^^^ ^^^
171141

172142
error: functions cannot be both `const` and C-variadic
173-
--> $DIR/variadic-ffi-semantic-restrictions.rs:70:5
143+
--> $DIR/variadic-ffi-semantic-restrictions.rs:64:5
174144
|
175145
LL | const fn i_f5(x: isize, ...) {}
176146
| ^^^^^ ^^^ C-variadic because of this
177147
| |
178148
| `const` because of this
179149

180150
error: only foreign or `unsafe extern "C"` functions may be C-variadic
181-
--> $DIR/variadic-ffi-semantic-restrictions.rs:70:29
151+
--> $DIR/variadic-ffi-semantic-restrictions.rs:64:29
182152
|
183153
LL | const fn i_f5(x: isize, ...) {}
184154
| ^^^
185155

186156
error: only foreign or `unsafe extern "C"` functions may be C-variadic
187-
--> $DIR/variadic-ffi-semantic-restrictions.rs:77:23
157+
--> $DIR/variadic-ffi-semantic-restrictions.rs:71:23
188158
|
189159
LL | fn t_f1(x: isize, ...) {}
190160
| ^^^
191161

192162
error: only foreign or `unsafe extern "C"` functions may be C-variadic
193-
--> $DIR/variadic-ffi-semantic-restrictions.rs:79:23
163+
--> $DIR/variadic-ffi-semantic-restrictions.rs:73:23
194164
|
195165
LL | fn t_f2(x: isize, ...);
196166
| ^^^
197167

198-
error: C-variadic function must be declared with at least one named argument
199-
--> $DIR/variadic-ffi-semantic-restrictions.rs:81:13
200-
|
201-
LL | fn t_f3(...) {}
202-
| ^^^
203-
204168
error: only foreign or `unsafe extern "C"` functions may be C-variadic
205-
--> $DIR/variadic-ffi-semantic-restrictions.rs:81:13
169+
--> $DIR/variadic-ffi-semantic-restrictions.rs:75:13
206170
|
207171
LL | fn t_f3(...) {}
208172
| ^^^
209173

210-
error: C-variadic function must be declared with at least one named argument
211-
--> $DIR/variadic-ffi-semantic-restrictions.rs:84:13
212-
|
213-
LL | fn t_f4(...);
214-
| ^^^
215-
216174
error: only foreign or `unsafe extern "C"` functions may be C-variadic
217-
--> $DIR/variadic-ffi-semantic-restrictions.rs:84:13
175+
--> $DIR/variadic-ffi-semantic-restrictions.rs:77:13
218176
|
219177
LL | fn t_f4(...);
220178
| ^^^
221179

222180
error: `...` must be the last argument of a C-variadic function
223-
--> $DIR/variadic-ffi-semantic-restrictions.rs:87:13
181+
--> $DIR/variadic-ffi-semantic-restrictions.rs:79:13
224182
|
225183
LL | fn t_f5(..., x: isize) {}
226184
| ^^^
227185

228186
error: only foreign or `unsafe extern "C"` functions may be C-variadic
229-
--> $DIR/variadic-ffi-semantic-restrictions.rs:87:13
187+
--> $DIR/variadic-ffi-semantic-restrictions.rs:79:13
230188
|
231189
LL | fn t_f5(..., x: isize) {}
232190
| ^^^
233191

234192
error: `...` must be the last argument of a C-variadic function
235-
--> $DIR/variadic-ffi-semantic-restrictions.rs:90:13
193+
--> $DIR/variadic-ffi-semantic-restrictions.rs:82:13
236194
|
237195
LL | fn t_f6(..., x: isize);
238196
| ^^^
239197

240198
error: only foreign or `unsafe extern "C"` functions may be C-variadic
241-
--> $DIR/variadic-ffi-semantic-restrictions.rs:90:13
199+
--> $DIR/variadic-ffi-semantic-restrictions.rs:82:13
242200
|
243201
LL | fn t_f6(..., x: isize);
244202
| ^^^
245203

246204
error[E0493]: destructor of `VaListImpl<'_>` cannot be evaluated at compile-time
247-
--> $DIR/variadic-ffi-semantic-restrictions.rs:35:43
205+
--> $DIR/variadic-ffi-semantic-restrictions.rs:32:43
248206
|
249207
LL | const unsafe extern "C" fn f4_1(x: isize, ...) {}
250208
| ^^^ - value is dropped here
251209
| |
252210
| the destructor for this type cannot be evaluated in constant functions
253211

254212
error[E0493]: destructor of `VaListImpl<'_>` cannot be evaluated at compile-time
255-
--> $DIR/variadic-ffi-semantic-restrictions.rs:39:36
213+
--> $DIR/variadic-ffi-semantic-restrictions.rs:36:36
256214
|
257215
LL | const extern "C" fn f4_2(x: isize, ...) {}
258216
| ^^^ - value is dropped here
259217
| |
260218
| the destructor for this type cannot be evaluated in constant functions
261219

262220
error[E0493]: destructor of `VaListImpl<'_>` cannot be evaluated at compile-time
263-
--> $DIR/variadic-ffi-semantic-restrictions.rs:70:29
221+
--> $DIR/variadic-ffi-semantic-restrictions.rs:64:29
264222
|
265223
LL | const fn i_f5(x: isize, ...) {}
266224
| ^^^ - value is dropped here
267225
| |
268226
| the destructor for this type cannot be evaluated in constant functions
269227

270-
error: aborting due to 43 previous errors
228+
error: aborting due to 36 previous errors
271229

272230
For more information about this error, try `rustc --explain E0493`.

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