1 error: expected identifier, found reserved identifier `_`
2 --> $DIR/typeck_type_placeholder_item.rs:154:18
4 LL | struct BadStruct<_>(_);
5 | ^ expected identifier, found reserved identifier
7 error: expected identifier, found reserved identifier `_`
8 --> $DIR/typeck_type_placeholder_item.rs:157:16
10 LL | trait BadTrait<_> {}
11 | ^ expected identifier, found reserved identifier
13 error: expected identifier, found reserved identifier `_`
14 --> $DIR/typeck_type_placeholder_item.rs:167:19
16 LL | struct BadStruct1<_, _>(_);
17 | ^ expected identifier, found reserved identifier
19 error: expected identifier, found reserved identifier `_`
20 --> $DIR/typeck_type_placeholder_item.rs:167:22
22 LL | struct BadStruct1<_, _>(_);
23 | ^ expected identifier, found reserved identifier
25 error: expected identifier, found reserved identifier `_`
26 --> $DIR/typeck_type_placeholder_item.rs:172:19
28 LL | struct BadStruct2<_, T>(_, T);
29 | ^ expected identifier, found reserved identifier
31 error: associated constant in `impl` without body
32 --> $DIR/typeck_type_placeholder_item.rs:205:5
37 | help: provide a definition for the constant: `= <expr>;`
39 error[E0403]: the name `_` is already used for a generic parameter in this item's generic parameters
40 --> $DIR/typeck_type_placeholder_item.rs:167:22
42 LL | struct BadStruct1<_, _>(_);
47 error[E0121]: the type placeholder `_` is not allowed within types on item signatures
48 --> $DIR/typeck_type_placeholder_item.rs:6:14
50 LL | fn test() -> _ { 5 }
53 | not allowed in type signatures
54 | help: replace with the correct return type: `i32`
56 error[E0121]: the type placeholder `_` is not allowed within types on item signatures
57 --> $DIR/typeck_type_placeholder_item.rs:9:16
59 LL | fn test2() -> (_, _) { (5, 5) }
62 | || not allowed in type signatures
63 | |not allowed in type signatures
64 | help: replace with the correct return type: `(i32, i32)`
66 error[E0121]: the type placeholder `_` is not allowed within types on item signatures
67 --> $DIR/typeck_type_placeholder_item.rs:12:15
69 LL | static TEST3: _ = "test";
72 | not allowed in type signatures
73 | help: replace `_` with the correct type: `&str`
75 error[E0121]: the type placeholder `_` is not allowed within types on item signatures
76 --> $DIR/typeck_type_placeholder_item.rs:15:15
78 LL | static TEST4: _ = 145;
81 | not allowed in type signatures
82 | help: replace `_` with the correct type: `i32`
84 error[E0121]: the type placeholder `_` is not allowed within types on item signatures
85 --> $DIR/typeck_type_placeholder_item.rs:18:15
87 LL | static TEST5: (_, _) = (1, 2);
88 | ^^^^^^ not allowed in type signatures
90 error[E0121]: the type placeholder `_` is not allowed within types on item signatures
91 --> $DIR/typeck_type_placeholder_item.rs:21:13
93 LL | fn test6(_: _) { }
94 | ^ not allowed in type signatures
96 help: use type parameters instead
98 LL | fn test6<T>(_: T) { }
101 error[E0121]: the type placeholder `_` is not allowed within types on item signatures
102 --> $DIR/typeck_type_placeholder_item.rs:24:18
104 LL | fn test6_b<T>(_: _, _: T) { }
105 | ^ not allowed in type signatures
107 help: use type parameters instead
109 LL | fn test6_b<T, U>(_: U, _: T) { }
112 error[E0121]: the type placeholder `_` is not allowed within types on item signatures
113 --> $DIR/typeck_type_placeholder_item.rs:27:30
115 LL | fn test6_c<T, K, L, A, B>(_: _, _: (T, K, L, A, B)) { }
116 | ^ not allowed in type signatures
118 help: use type parameters instead
120 LL | fn test6_c<T, K, L, A, B, U>(_: U, _: (T, K, L, A, B)) { }
123 error[E0121]: the type placeholder `_` is not allowed within types on item signatures
124 --> $DIR/typeck_type_placeholder_item.rs:30:13
126 LL | fn test7(x: _) { let _x: usize = x; }
127 | ^ not allowed in type signatures
129 help: use type parameters instead
131 LL | fn test7<T>(x: T) { let _x: usize = x; }
134 error[E0121]: the type placeholder `_` is not allowed within types on item signatures
135 --> $DIR/typeck_type_placeholder_item.rs:33:22
137 LL | fn test8(_f: fn() -> _) { }
140 | not allowed in type signatures
141 | help: use type parameters instead: `T`
143 error[E0121]: the type placeholder `_` is not allowed within types on item signatures
144 --> $DIR/typeck_type_placeholder_item.rs:33:22
146 LL | fn test8(_f: fn() -> _) { }
147 | ^ not allowed in type signatures
149 help: use type parameters instead
151 LL | fn test8<T>(_f: fn() -> T) { }
154 error[E0121]: the type placeholder `_` is not allowed within types on item signatures
155 --> $DIR/typeck_type_placeholder_item.rs:47:26
157 LL | fn test11(x: &usize) -> &_ {
160 | |not allowed in type signatures
161 | help: replace with the correct return type: `&&usize`
163 error[E0121]: the type placeholder `_` is not allowed within types on item signatures
164 --> $DIR/typeck_type_placeholder_item.rs:52:52
166 LL | unsafe fn test12(x: *const usize) -> *const *const _ {
169 | | not allowed in type signatures
170 | help: replace with the correct return type: `*const *const usize`
172 error[E0121]: the type placeholder `_` is not allowed within types on item signatures
173 --> $DIR/typeck_type_placeholder_item.rs:66:8
176 | ^ not allowed in type signatures
179 | ^ ^ not allowed in type signatures
181 | not allowed in type signatures
183 help: use type parameters instead
185 LL | struct Test10<T> {
191 error: missing type for `static` item
192 --> $DIR/typeck_type_placeholder_item.rs:72:12
195 | ^ help: provide a type for the item: `A: i32`
197 error[E0121]: the type placeholder `_` is not allowed within types on item signatures
198 --> $DIR/typeck_type_placeholder_item.rs:74:15
200 LL | static B: _ = 42;
203 | not allowed in type signatures
204 | help: replace `_` with the correct type: `i32`
206 error[E0121]: the type placeholder `_` is not allowed within types on item signatures
207 --> $DIR/typeck_type_placeholder_item.rs:76:15
209 LL | static C: Option<_> = Some(42);
210 | ^^^^^^^^^ not allowed in type signatures
212 error[E0121]: the type placeholder `_` is not allowed within types on item signatures
213 --> $DIR/typeck_type_placeholder_item.rs:79:21
215 LL | fn fn_test() -> _ { 5 }
218 | not allowed in type signatures
219 | help: replace with the correct return type: `i32`
221 error[E0121]: the type placeholder `_` is not allowed within types on item signatures
222 --> $DIR/typeck_type_placeholder_item.rs:82:23
224 LL | fn fn_test2() -> (_, _) { (5, 5) }
227 | || not allowed in type signatures
228 | |not allowed in type signatures
229 | help: replace with the correct return type: `(i32, i32)`
231 error[E0121]: the type placeholder `_` is not allowed within types on item signatures
232 --> $DIR/typeck_type_placeholder_item.rs:85:22
234 LL | static FN_TEST3: _ = "test";
237 | not allowed in type signatures
238 | help: replace `_` with the correct type: `&str`
240 error[E0121]: the type placeholder `_` is not allowed within types on item signatures
241 --> $DIR/typeck_type_placeholder_item.rs:88:22
243 LL | static FN_TEST4: _ = 145;
246 | not allowed in type signatures
247 | help: replace `_` with the correct type: `i32`
249 error[E0121]: the type placeholder `_` is not allowed within types on item signatures
250 --> $DIR/typeck_type_placeholder_item.rs:91:22
252 LL | static FN_TEST5: (_, _) = (1, 2);
253 | ^^^^^^ not allowed in type signatures
255 error[E0121]: the type placeholder `_` is not allowed within types on item signatures
256 --> $DIR/typeck_type_placeholder_item.rs:94:20
258 LL | fn fn_test6(_: _) { }
259 | ^ not allowed in type signatures
261 help: use type parameters instead
263 LL | fn fn_test6<T>(_: T) { }
266 error[E0121]: the type placeholder `_` is not allowed within types on item signatures
267 --> $DIR/typeck_type_placeholder_item.rs:97:20
269 LL | fn fn_test7(x: _) { let _x: usize = x; }
270 | ^ not allowed in type signatures
272 help: use type parameters instead
274 LL | fn fn_test7<T>(x: T) { let _x: usize = x; }
277 error[E0121]: the type placeholder `_` is not allowed within types on item signatures
278 --> $DIR/typeck_type_placeholder_item.rs:100:29
280 LL | fn fn_test8(_f: fn() -> _) { }
283 | not allowed in type signatures
284 | help: use type parameters instead: `T`
286 error[E0121]: the type placeholder `_` is not allowed within types on item signatures
287 --> $DIR/typeck_type_placeholder_item.rs:100:29
289 LL | fn fn_test8(_f: fn() -> _) { }
290 | ^ not allowed in type signatures
292 help: use type parameters instead
294 LL | fn fn_test8<T>(_f: fn() -> T) { }
297 error[E0121]: the type placeholder `_` is not allowed within types on item signatures
298 --> $DIR/typeck_type_placeholder_item.rs:123:12
301 | ^ not allowed in type signatures
304 | ^ ^ not allowed in type signatures
306 | not allowed in type signatures
308 help: use type parameters instead
310 LL | struct FnTest10<T> {
316 error[E0282]: type annotations needed
317 --> $DIR/typeck_type_placeholder_item.rs:128:18
319 LL | fn fn_test11(_: _) -> (_, _) { panic!() }
320 | ^ cannot infer type
322 error[E0121]: the type placeholder `_` is not allowed within types on item signatures
323 --> $DIR/typeck_type_placeholder_item.rs:128:28
325 LL | fn fn_test11(_: _) -> (_, _) { panic!() }
326 | ^ ^ not allowed in type signatures
328 | not allowed in type signatures
330 error[E0121]: the type placeholder `_` is not allowed within types on item signatures
331 --> $DIR/typeck_type_placeholder_item.rs:132:30
333 LL | fn fn_test12(x: i32) -> (_, _) { (x, x) }
336 | || not allowed in type signatures
337 | |not allowed in type signatures
338 | help: replace with the correct return type: `(i32, i32)`
340 error[E0121]: the type placeholder `_` is not allowed within types on item signatures
341 --> $DIR/typeck_type_placeholder_item.rs:135:33
343 LL | fn fn_test13(x: _) -> (i32, _) { (x, x) }
346 | | not allowed in type signatures
347 | help: replace with the correct return type: `(i32, i32)`
349 error[E0121]: the type placeholder `_` is not allowed within types on item signatures
350 --> $DIR/typeck_type_placeholder_item.rs:154:21
352 LL | struct BadStruct<_>(_);
353 | ^ not allowed in type signatures
355 help: use type parameters instead
357 LL | struct BadStruct<T>(T);
360 error[E0121]: the type placeholder `_` is not allowed within types on item signatures
361 --> $DIR/typeck_type_placeholder_item.rs:159:15
363 LL | impl BadTrait<_> for BadStruct<_> {}
364 | ^ ^ not allowed in type signatures
366 | not allowed in type signatures
368 help: use type parameters instead
370 LL | impl<T> BadTrait<T> for BadStruct<T> {}
373 error[E0121]: the type placeholder `_` is not allowed within types on item signatures
374 --> $DIR/typeck_type_placeholder_item.rs:162:34
376 LL | fn impl_trait() -> impl BadTrait<_> {
377 | ^ not allowed in type signatures
379 error[E0121]: the type placeholder `_` is not allowed within types on item signatures
380 --> $DIR/typeck_type_placeholder_item.rs:167:25
382 LL | struct BadStruct1<_, _>(_);
383 | ^ not allowed in type signatures
385 help: use type parameters instead
387 LL | struct BadStruct1<T, _>(T);
390 error[E0121]: the type placeholder `_` is not allowed within types on item signatures
391 --> $DIR/typeck_type_placeholder_item.rs:172:25
393 LL | struct BadStruct2<_, T>(_, T);
394 | ^ not allowed in type signatures
396 help: use type parameters instead
398 LL | struct BadStruct2<U, T>(U, T);
401 error[E0121]: the type placeholder `_` is not allowed within types on item signatures
402 --> $DIR/typeck_type_placeholder_item.rs:176:14
404 LL | type X = Box<_>;
405 | ^ not allowed in type signatures
407 error[E0121]: the type placeholder `_` is not allowed within types on item signatures
408 --> $DIR/typeck_type_placeholder_item.rs:43:27
410 LL | fn test10(&self, _x : _) { }
411 | ^ not allowed in type signatures
413 help: use type parameters instead
415 LL | fn test10<T>(&self, _x : T) { }
418 error[E0121]: the type placeholder `_` is not allowed within types on item signatures
419 --> $DIR/typeck_type_placeholder_item.rs:140:31
421 LL | fn method_test1(&self, x: _);
422 | ^ not allowed in type signatures
424 help: use type parameters instead
426 LL | fn method_test1<T>(&self, x: T);
429 error[E0121]: the type placeholder `_` is not allowed within types on item signatures
430 --> $DIR/typeck_type_placeholder_item.rs:142:31
432 LL | fn method_test2(&self, x: _) -> _;
433 | ^ ^ not allowed in type signatures
435 | not allowed in type signatures
437 help: use type parameters instead
439 LL | fn method_test2<T>(&self, x: T) -> T;
442 error[E0121]: the type placeholder `_` is not allowed within types on item signatures
443 --> $DIR/typeck_type_placeholder_item.rs:144:31
445 LL | fn method_test3(&self) -> _;
446 | ^ not allowed in type signatures
448 help: use type parameters instead
450 LL | fn method_test3<T>(&self) -> T;
453 error[E0121]: the type placeholder `_` is not allowed within types on item signatures
454 --> $DIR/typeck_type_placeholder_item.rs:146:26
456 LL | fn assoc_fn_test1(x: _);
457 | ^ not allowed in type signatures
459 help: use type parameters instead
461 LL | fn assoc_fn_test1<T>(x: T);
464 error[E0121]: the type placeholder `_` is not allowed within types on item signatures
465 --> $DIR/typeck_type_placeholder_item.rs:148:26
467 LL | fn assoc_fn_test2(x: _) -> _;
468 | ^ ^ not allowed in type signatures
470 | not allowed in type signatures
472 help: use type parameters instead
474 LL | fn assoc_fn_test2<T>(x: T) -> T;
477 error[E0121]: the type placeholder `_` is not allowed within types on item signatures
478 --> $DIR/typeck_type_placeholder_item.rs:150:28
480 LL | fn assoc_fn_test3() -> _;
481 | ^ not allowed in type signatures
483 help: use type parameters instead
485 LL | fn assoc_fn_test3<T>() -> T;
488 error[E0121]: the type placeholder `_` is not allowed within types on item signatures
489 --> $DIR/typeck_type_placeholder_item.rs:61:37
491 LL | fn clone_from(&mut self, other: _) { *self = Test9; }
492 | ^ not allowed in type signatures
494 help: use type parameters instead
496 LL | fn clone_from<T>(&mut self, other: T) { *self = Test9; }
499 error[E0121]: the type placeholder `_` is not allowed within types on item signatures
500 --> $DIR/typeck_type_placeholder_item.rs:110:34
502 LL | fn fn_test10(&self, _x : _) { }
503 | ^ not allowed in type signatures
505 help: use type parameters instead
507 LL | fn fn_test10<T>(&self, _x : T) { }
510 error[E0121]: the type placeholder `_` is not allowed within types on item signatures
511 --> $DIR/typeck_type_placeholder_item.rs:118:41
513 LL | fn clone_from(&mut self, other: _) { *self = FnTest9; }
514 | ^ not allowed in type signatures
516 help: use type parameters instead
518 LL | fn clone_from<T>(&mut self, other: T) { *self = FnTest9; }
521 error[E0121]: the type placeholder `_` is not allowed within types on item signatures
522 --> $DIR/typeck_type_placeholder_item.rs:182:21
524 LL | type Y = impl Trait<_>;
525 | ^ not allowed in type signatures
527 error[E0121]: the type placeholder `_` is not allowed within types on item signatures
528 --> $DIR/typeck_type_placeholder_item.rs:190:14
531 | ^ not allowed in type signatures
533 error[E0121]: the type placeholder `_` is not allowed within types on item signatures
534 --> $DIR/typeck_type_placeholder_item.rs:192:14
537 | ^ not allowed in type signatures
539 error[E0121]: the type placeholder `_` is not allowed within types on item signatures
540 --> $DIR/typeck_type_placeholder_item.rs:194:14
542 LL | const D: _ = 42;
545 | not allowed in type signatures
546 | help: replace `_` with the correct type: `i32`
548 error[E0121]: the type placeholder `_` is not allowed within types on item signatures
549 --> $DIR/typeck_type_placeholder_item.rs:197:26
551 LL | type F: std::ops::Fn(_);
552 | ^ not allowed in type signatures
554 error[E0121]: the type placeholder `_` is not allowed within types on item signatures
555 --> $DIR/typeck_type_placeholder_item.rs:40:24
557 LL | fn test9(&self) -> _ { () }
560 | not allowed in type signatures
561 | help: replace with the correct return type: `()`
563 error[E0121]: the type placeholder `_` is not allowed within types on item signatures
564 --> $DIR/typeck_type_placeholder_item.rs:58:24
566 LL | fn clone(&self) -> _ { Test9 }
569 | not allowed in type signatures
570 | help: replace with the correct return type: `Test9`
572 error[E0121]: the type placeholder `_` is not allowed within types on item signatures
573 --> $DIR/typeck_type_placeholder_item.rs:107:31
575 LL | fn fn_test9(&self) -> _ { () }
578 | not allowed in type signatures
579 | help: replace with the correct return type: `()`
581 error[E0121]: the type placeholder `_` is not allowed within types on item signatures
582 --> $DIR/typeck_type_placeholder_item.rs:115:28
584 LL | fn clone(&self) -> _ { FnTest9 }
587 | not allowed in type signatures
588 | help: replace with the correct return type: `main::FnTest9`
590 error[E0121]: the type placeholder `_` is not allowed within types on item signatures
591 --> $DIR/typeck_type_placeholder_item.rs:201:14
594 | ^ not allowed in type signatures
596 error[E0121]: the type placeholder `_` is not allowed within types on item signatures
597 --> $DIR/typeck_type_placeholder_item.rs:203:14
600 | ^ not allowed in type signatures
602 error[E0121]: the type placeholder `_` is not allowed within types on item signatures
603 --> $DIR/typeck_type_placeholder_item.rs:205:14
606 | ^ not allowed in type signatures
608 error[E0121]: the type placeholder `_` is not allowed within types on item signatures
609 --> $DIR/typeck_type_placeholder_item.rs:208:14
611 LL | const D: _ = 42;
614 | not allowed in type signatures
615 | help: replace `_` with the correct type: `i32`
617 error: aborting due to 67 previous errors
619 Some errors have detailed explanations: E0121, E0282, E0403.
620 For more information about an error, try `rustc --explain E0121`.