diff options
Diffstat (limited to 'crates/ide_completion/src/completions/qualified_path.rs')
-rw-r--r-- | crates/ide_completion/src/completions/qualified_path.rs | 815 |
1 files changed, 815 insertions, 0 deletions
diff --git a/crates/ide_completion/src/completions/qualified_path.rs b/crates/ide_completion/src/completions/qualified_path.rs new file mode 100644 index 000000000..2afa6979e --- /dev/null +++ b/crates/ide_completion/src/completions/qualified_path.rs | |||
@@ -0,0 +1,815 @@ | |||
1 | //! Completion of paths, i.e. `some::prefix::$0`. | ||
2 | |||
3 | use hir::{Adt, HasVisibility, PathResolution, ScopeDef}; | ||
4 | use rustc_hash::FxHashSet; | ||
5 | use syntax::AstNode; | ||
6 | use test_utils::mark; | ||
7 | |||
8 | use crate::{CompletionContext, Completions}; | ||
9 | |||
10 | pub(crate) fn complete_qualified_path(acc: &mut Completions, ctx: &CompletionContext) { | ||
11 | let path = match &ctx.path_qual { | ||
12 | Some(path) => path.clone(), | ||
13 | None => return, | ||
14 | }; | ||
15 | |||
16 | if ctx.attribute_under_caret.is_some() || ctx.mod_declaration_under_caret.is_some() { | ||
17 | return; | ||
18 | } | ||
19 | |||
20 | let context_module = ctx.scope.module(); | ||
21 | |||
22 | let resolution = match ctx.sema.resolve_path(&path) { | ||
23 | Some(res) => res, | ||
24 | None => return, | ||
25 | }; | ||
26 | |||
27 | // Add associated types on type parameters and `Self`. | ||
28 | resolution.assoc_type_shorthand_candidates(ctx.db, |alias| { | ||
29 | acc.add_type_alias(ctx, alias); | ||
30 | None::<()> | ||
31 | }); | ||
32 | |||
33 | match resolution { | ||
34 | PathResolution::Def(hir::ModuleDef::Module(module)) => { | ||
35 | let module_scope = module.scope(ctx.db, context_module); | ||
36 | for (name, def) in module_scope { | ||
37 | if ctx.use_item_syntax.is_some() { | ||
38 | if let ScopeDef::Unknown = def { | ||
39 | if let Some(name_ref) = ctx.name_ref_syntax.as_ref() { | ||
40 | if name_ref.syntax().text() == name.to_string().as_str() { | ||
41 | // for `use self::foo$0`, don't suggest `foo` as a completion | ||
42 | mark::hit!(dont_complete_current_use); | ||
43 | continue; | ||
44 | } | ||
45 | } | ||
46 | } | ||
47 | } | ||
48 | |||
49 | acc.add_resolution(ctx, name.to_string(), &def); | ||
50 | } | ||
51 | } | ||
52 | PathResolution::Def(def @ hir::ModuleDef::Adt(_)) | ||
53 | | PathResolution::Def(def @ hir::ModuleDef::TypeAlias(_)) | ||
54 | | PathResolution::Def(def @ hir::ModuleDef::BuiltinType(_)) => { | ||
55 | if let hir::ModuleDef::Adt(Adt::Enum(e)) = def { | ||
56 | for variant in e.variants(ctx.db) { | ||
57 | acc.add_enum_variant(ctx, variant, None); | ||
58 | } | ||
59 | } | ||
60 | let ty = match def { | ||
61 | hir::ModuleDef::Adt(adt) => adt.ty(ctx.db), | ||
62 | hir::ModuleDef::TypeAlias(a) => a.ty(ctx.db), | ||
63 | hir::ModuleDef::BuiltinType(builtin) => { | ||
64 | let module = match ctx.scope.module() { | ||
65 | Some(it) => it, | ||
66 | None => return, | ||
67 | }; | ||
68 | builtin.ty(ctx.db, module) | ||
69 | } | ||
70 | _ => unreachable!(), | ||
71 | }; | ||
72 | |||
73 | // XXX: For parity with Rust bug #22519, this does not complete Ty::AssocType. | ||
74 | // (where AssocType is defined on a trait, not an inherent impl) | ||
75 | |||
76 | let krate = ctx.krate; | ||
77 | if let Some(krate) = krate { | ||
78 | let traits_in_scope = ctx.scope.traits_in_scope(); | ||
79 | ty.iterate_path_candidates(ctx.db, krate, &traits_in_scope, None, |_ty, item| { | ||
80 | if context_module.map_or(false, |m| !item.is_visible_from(ctx.db, m)) { | ||
81 | return None; | ||
82 | } | ||
83 | match item { | ||
84 | hir::AssocItem::Function(func) => { | ||
85 | acc.add_function(ctx, func, None); | ||
86 | } | ||
87 | hir::AssocItem::Const(ct) => acc.add_const(ctx, ct), | ||
88 | hir::AssocItem::TypeAlias(ty) => acc.add_type_alias(ctx, ty), | ||
89 | } | ||
90 | None::<()> | ||
91 | }); | ||
92 | |||
93 | // Iterate assoc types separately | ||
94 | ty.iterate_assoc_items(ctx.db, krate, |item| { | ||
95 | if context_module.map_or(false, |m| !item.is_visible_from(ctx.db, m)) { | ||
96 | return None; | ||
97 | } | ||
98 | match item { | ||
99 | hir::AssocItem::Function(_) | hir::AssocItem::Const(_) => {} | ||
100 | hir::AssocItem::TypeAlias(ty) => acc.add_type_alias(ctx, ty), | ||
101 | } | ||
102 | None::<()> | ||
103 | }); | ||
104 | } | ||
105 | } | ||
106 | PathResolution::Def(hir::ModuleDef::Trait(t)) => { | ||
107 | // Handles `Trait::assoc` as well as `<Ty as Trait>::assoc`. | ||
108 | for item in t.items(ctx.db) { | ||
109 | if context_module.map_or(false, |m| !item.is_visible_from(ctx.db, m)) { | ||
110 | continue; | ||
111 | } | ||
112 | match item { | ||
113 | hir::AssocItem::Function(func) => { | ||
114 | acc.add_function(ctx, func, None); | ||
115 | } | ||
116 | hir::AssocItem::Const(ct) => acc.add_const(ctx, ct), | ||
117 | hir::AssocItem::TypeAlias(ty) => acc.add_type_alias(ctx, ty), | ||
118 | } | ||
119 | } | ||
120 | } | ||
121 | PathResolution::TypeParam(_) | PathResolution::SelfType(_) => { | ||
122 | if let Some(krate) = ctx.krate { | ||
123 | let ty = match resolution { | ||
124 | PathResolution::TypeParam(param) => param.ty(ctx.db), | ||
125 | PathResolution::SelfType(impl_def) => impl_def.target_ty(ctx.db), | ||
126 | _ => return, | ||
127 | }; | ||
128 | |||
129 | if let Some(Adt::Enum(e)) = ty.as_adt() { | ||
130 | for variant in e.variants(ctx.db) { | ||
131 | acc.add_enum_variant(ctx, variant, None); | ||
132 | } | ||
133 | } | ||
134 | |||
135 | let traits_in_scope = ctx.scope.traits_in_scope(); | ||
136 | let mut seen = FxHashSet::default(); | ||
137 | ty.iterate_path_candidates(ctx.db, krate, &traits_in_scope, None, |_ty, item| { | ||
138 | if context_module.map_or(false, |m| !item.is_visible_from(ctx.db, m)) { | ||
139 | return None; | ||
140 | } | ||
141 | |||
142 | // We might iterate candidates of a trait multiple times here, so deduplicate | ||
143 | // them. | ||
144 | if seen.insert(item) { | ||
145 | match item { | ||
146 | hir::AssocItem::Function(func) => { | ||
147 | acc.add_function(ctx, func, None); | ||
148 | } | ||
149 | hir::AssocItem::Const(ct) => acc.add_const(ctx, ct), | ||
150 | hir::AssocItem::TypeAlias(ty) => acc.add_type_alias(ctx, ty), | ||
151 | } | ||
152 | } | ||
153 | None::<()> | ||
154 | }); | ||
155 | } | ||
156 | } | ||
157 | _ => {} | ||
158 | } | ||
159 | } | ||
160 | |||
161 | #[cfg(test)] | ||
162 | mod tests { | ||
163 | use expect_test::{expect, Expect}; | ||
164 | use test_utils::mark; | ||
165 | |||
166 | use crate::{ | ||
167 | test_utils::{check_edit, completion_list}, | ||
168 | CompletionKind, | ||
169 | }; | ||
170 | |||
171 | fn check(ra_fixture: &str, expect: Expect) { | ||
172 | let actual = completion_list(ra_fixture, CompletionKind::Reference); | ||
173 | expect.assert_eq(&actual); | ||
174 | } | ||
175 | |||
176 | fn check_builtin(ra_fixture: &str, expect: Expect) { | ||
177 | let actual = completion_list(ra_fixture, CompletionKind::BuiltinType); | ||
178 | expect.assert_eq(&actual); | ||
179 | } | ||
180 | |||
181 | #[test] | ||
182 | fn dont_complete_current_use() { | ||
183 | mark::check!(dont_complete_current_use); | ||
184 | check(r#"use self::foo$0;"#, expect![[""]]); | ||
185 | } | ||
186 | |||
187 | #[test] | ||
188 | fn dont_complete_current_use_in_braces_with_glob() { | ||
189 | check( | ||
190 | r#" | ||
191 | mod foo { pub struct S; } | ||
192 | use self::{foo::*, bar$0}; | ||
193 | "#, | ||
194 | expect![[r#" | ||
195 | st S | ||
196 | md foo | ||
197 | "#]], | ||
198 | ); | ||
199 | } | ||
200 | |||
201 | #[test] | ||
202 | fn dont_complete_primitive_in_use() { | ||
203 | check_builtin(r#"use self::$0;"#, expect![[""]]); | ||
204 | } | ||
205 | |||
206 | #[test] | ||
207 | fn dont_complete_primitive_in_module_scope() { | ||
208 | check_builtin(r#"fn foo() { self::$0 }"#, expect![[""]]); | ||
209 | } | ||
210 | |||
211 | #[test] | ||
212 | fn completes_primitives() { | ||
213 | check_builtin( | ||
214 | r#"fn main() { let _: $0 = 92; }"#, | ||
215 | expect![[r#" | ||
216 | bt u32 | ||
217 | bt bool | ||
218 | bt u8 | ||
219 | bt isize | ||
220 | bt u16 | ||
221 | bt u64 | ||
222 | bt u128 | ||
223 | bt f32 | ||
224 | bt i128 | ||
225 | bt i16 | ||
226 | bt str | ||
227 | bt i64 | ||
228 | bt char | ||
229 | bt f64 | ||
230 | bt i32 | ||
231 | bt i8 | ||
232 | bt usize | ||
233 | "#]], | ||
234 | ); | ||
235 | } | ||
236 | |||
237 | #[test] | ||
238 | fn completes_mod_with_same_name_as_function() { | ||
239 | check( | ||
240 | r#" | ||
241 | use self::my::$0; | ||
242 | |||
243 | mod my { pub struct Bar; } | ||
244 | fn my() {} | ||
245 | "#, | ||
246 | expect![[r#" | ||
247 | st Bar | ||
248 | "#]], | ||
249 | ); | ||
250 | } | ||
251 | |||
252 | #[test] | ||
253 | fn filters_visibility() { | ||
254 | check( | ||
255 | r#" | ||
256 | use self::my::$0; | ||
257 | |||
258 | mod my { | ||
259 | struct Bar; | ||
260 | pub struct Foo; | ||
261 | pub use Bar as PublicBar; | ||
262 | } | ||
263 | "#, | ||
264 | expect![[r#" | ||
265 | st Foo | ||
266 | st PublicBar | ||
267 | "#]], | ||
268 | ); | ||
269 | } | ||
270 | |||
271 | #[test] | ||
272 | fn completes_use_item_starting_with_self() { | ||
273 | check( | ||
274 | r#" | ||
275 | use self::m::$0; | ||
276 | |||
277 | mod m { pub struct Bar; } | ||
278 | "#, | ||
279 | expect![[r#" | ||
280 | st Bar | ||
281 | "#]], | ||
282 | ); | ||
283 | } | ||
284 | |||
285 | #[test] | ||
286 | fn completes_use_item_starting_with_crate() { | ||
287 | check( | ||
288 | r#" | ||
289 | //- /lib.rs | ||
290 | mod foo; | ||
291 | struct Spam; | ||
292 | //- /foo.rs | ||
293 | use crate::Sp$0 | ||
294 | "#, | ||
295 | expect![[r#" | ||
296 | md foo | ||
297 | st Spam | ||
298 | "#]], | ||
299 | ); | ||
300 | } | ||
301 | |||
302 | #[test] | ||
303 | fn completes_nested_use_tree() { | ||
304 | check( | ||
305 | r#" | ||
306 | //- /lib.rs | ||
307 | mod foo; | ||
308 | struct Spam; | ||
309 | //- /foo.rs | ||
310 | use crate::{Sp$0}; | ||
311 | "#, | ||
312 | expect![[r#" | ||
313 | md foo | ||
314 | st Spam | ||
315 | "#]], | ||
316 | ); | ||
317 | } | ||
318 | |||
319 | #[test] | ||
320 | fn completes_deeply_nested_use_tree() { | ||
321 | check( | ||
322 | r#" | ||
323 | //- /lib.rs | ||
324 | mod foo; | ||
325 | pub mod bar { | ||
326 | pub mod baz { | ||
327 | pub struct Spam; | ||
328 | } | ||
329 | } | ||
330 | //- /foo.rs | ||
331 | use crate::{bar::{baz::Sp$0}}; | ||
332 | "#, | ||
333 | expect![[r#" | ||
334 | st Spam | ||
335 | "#]], | ||
336 | ); | ||
337 | } | ||
338 | |||
339 | #[test] | ||
340 | fn completes_enum_variant() { | ||
341 | check( | ||
342 | r#" | ||
343 | enum E { Foo, Bar(i32) } | ||
344 | fn foo() { let _ = E::$0 } | ||
345 | "#, | ||
346 | expect![[r#" | ||
347 | ev Foo () | ||
348 | ev Bar(…) (i32) | ||
349 | "#]], | ||
350 | ); | ||
351 | } | ||
352 | |||
353 | #[test] | ||
354 | fn completes_struct_associated_items() { | ||
355 | check( | ||
356 | r#" | ||
357 | //- /lib.rs | ||
358 | struct S; | ||
359 | |||
360 | impl S { | ||
361 | fn a() {} | ||
362 | fn b(&self) {} | ||
363 | const C: i32 = 42; | ||
364 | type T = i32; | ||
365 | } | ||
366 | |||
367 | fn foo() { let _ = S::$0 } | ||
368 | "#, | ||
369 | expect![[r#" | ||
370 | fn a() -> () | ||
371 | me b(…) -> () | ||
372 | ct C const C: i32 = 42; | ||
373 | ta T type T = i32; | ||
374 | "#]], | ||
375 | ); | ||
376 | } | ||
377 | |||
378 | #[test] | ||
379 | fn associated_item_visibility() { | ||
380 | check( | ||
381 | r#" | ||
382 | struct S; | ||
383 | |||
384 | mod m { | ||
385 | impl super::S { | ||
386 | pub(crate) fn public_method() { } | ||
387 | fn private_method() { } | ||
388 | pub(crate) type PublicType = u32; | ||
389 | type PrivateType = u32; | ||
390 | pub(crate) const PUBLIC_CONST: u32 = 1; | ||
391 | const PRIVATE_CONST: u32 = 1; | ||
392 | } | ||
393 | } | ||
394 | |||
395 | fn foo() { let _ = S::$0 } | ||
396 | "#, | ||
397 | expect![[r#" | ||
398 | fn public_method() -> () | ||
399 | ct PUBLIC_CONST pub(crate) const PUBLIC_CONST: u32 = 1; | ||
400 | ta PublicType pub(crate) type PublicType = u32; | ||
401 | "#]], | ||
402 | ); | ||
403 | } | ||
404 | |||
405 | #[test] | ||
406 | fn completes_enum_associated_method() { | ||
407 | check( | ||
408 | r#" | ||
409 | enum E {}; | ||
410 | impl E { fn m() { } } | ||
411 | |||
412 | fn foo() { let _ = E::$0 } | ||
413 | "#, | ||
414 | expect![[r#" | ||
415 | fn m() -> () | ||
416 | "#]], | ||
417 | ); | ||
418 | } | ||
419 | |||
420 | #[test] | ||
421 | fn completes_union_associated_method() { | ||
422 | check( | ||
423 | r#" | ||
424 | union U {}; | ||
425 | impl U { fn m() { } } | ||
426 | |||
427 | fn foo() { let _ = U::$0 } | ||
428 | "#, | ||
429 | expect![[r#" | ||
430 | fn m() -> () | ||
431 | "#]], | ||
432 | ); | ||
433 | } | ||
434 | |||
435 | #[test] | ||
436 | fn completes_use_paths_across_crates() { | ||
437 | check( | ||
438 | r#" | ||
439 | //- /main.rs crate:main deps:foo | ||
440 | use foo::$0; | ||
441 | |||
442 | //- /foo/lib.rs crate:foo | ||
443 | pub mod bar { pub struct S; } | ||
444 | "#, | ||
445 | expect![[r#" | ||
446 | md bar | ||
447 | "#]], | ||
448 | ); | ||
449 | } | ||
450 | |||
451 | #[test] | ||
452 | fn completes_trait_associated_method_1() { | ||
453 | check( | ||
454 | r#" | ||
455 | trait Trait { fn m(); } | ||
456 | |||
457 | fn foo() { let _ = Trait::$0 } | ||
458 | "#, | ||
459 | expect![[r#" | ||
460 | fn m() -> () | ||
461 | "#]], | ||
462 | ); | ||
463 | } | ||
464 | |||
465 | #[test] | ||
466 | fn completes_trait_associated_method_2() { | ||
467 | check( | ||
468 | r#" | ||
469 | trait Trait { fn m(); } | ||
470 | |||
471 | struct S; | ||
472 | impl Trait for S {} | ||
473 | |||
474 | fn foo() { let _ = S::$0 } | ||
475 | "#, | ||
476 | expect![[r#" | ||
477 | fn m() -> () | ||
478 | "#]], | ||
479 | ); | ||
480 | } | ||
481 | |||
482 | #[test] | ||
483 | fn completes_trait_associated_method_3() { | ||
484 | check( | ||
485 | r#" | ||
486 | trait Trait { fn m(); } | ||
487 | |||
488 | struct S; | ||
489 | impl Trait for S {} | ||
490 | |||
491 | fn foo() { let _ = <S as Trait>::$0 } | ||
492 | "#, | ||
493 | expect![[r#" | ||
494 | fn m() -> () | ||
495 | "#]], | ||
496 | ); | ||
497 | } | ||
498 | |||
499 | #[test] | ||
500 | fn completes_ty_param_assoc_ty() { | ||
501 | check( | ||
502 | r#" | ||
503 | trait Super { | ||
504 | type Ty; | ||
505 | const CONST: u8; | ||
506 | fn func() {} | ||
507 | fn method(&self) {} | ||
508 | } | ||
509 | |||
510 | trait Sub: Super { | ||
511 | type SubTy; | ||
512 | const C2: (); | ||
513 | fn subfunc() {} | ||
514 | fn submethod(&self) {} | ||
515 | } | ||
516 | |||
517 | fn foo<T: Sub>() { T::$0 } | ||
518 | "#, | ||
519 | expect![[r#" | ||
520 | ta SubTy type SubTy; | ||
521 | ta Ty type Ty; | ||
522 | ct C2 const C2: (); | ||
523 | fn subfunc() -> () | ||
524 | me submethod(…) -> () | ||
525 | ct CONST const CONST: u8; | ||
526 | fn func() -> () | ||
527 | me method(…) -> () | ||
528 | "#]], | ||
529 | ); | ||
530 | } | ||
531 | |||
532 | #[test] | ||
533 | fn completes_self_param_assoc_ty() { | ||
534 | check( | ||
535 | r#" | ||
536 | trait Super { | ||
537 | type Ty; | ||
538 | const CONST: u8 = 0; | ||
539 | fn func() {} | ||
540 | fn method(&self) {} | ||
541 | } | ||
542 | |||
543 | trait Sub: Super { | ||
544 | type SubTy; | ||
545 | const C2: () = (); | ||
546 | fn subfunc() {} | ||
547 | fn submethod(&self) {} | ||
548 | } | ||
549 | |||
550 | struct Wrap<T>(T); | ||
551 | impl<T> Super for Wrap<T> {} | ||
552 | impl<T> Sub for Wrap<T> { | ||
553 | fn subfunc() { | ||
554 | // Should be able to assume `Self: Sub + Super` | ||
555 | Self::$0 | ||
556 | } | ||
557 | } | ||
558 | "#, | ||
559 | expect![[r#" | ||
560 | ta SubTy type SubTy; | ||
561 | ta Ty type Ty; | ||
562 | ct CONST const CONST: u8 = 0; | ||
563 | fn func() -> () | ||
564 | me method(…) -> () | ||
565 | ct C2 const C2: () = (); | ||
566 | fn subfunc() -> () | ||
567 | me submethod(…) -> () | ||
568 | "#]], | ||
569 | ); | ||
570 | } | ||
571 | |||
572 | #[test] | ||
573 | fn completes_type_alias() { | ||
574 | check( | ||
575 | r#" | ||
576 | struct S; | ||
577 | impl S { fn foo() {} } | ||
578 | type T = S; | ||
579 | impl T { fn bar() {} } | ||
580 | |||
581 | fn main() { T::$0; } | ||
582 | "#, | ||
583 | expect![[r#" | ||
584 | fn foo() -> () | ||
585 | fn bar() -> () | ||
586 | "#]], | ||
587 | ); | ||
588 | } | ||
589 | |||
590 | #[test] | ||
591 | fn completes_qualified_macros() { | ||
592 | check( | ||
593 | r#" | ||
594 | #[macro_export] | ||
595 | macro_rules! foo { () => {} } | ||
596 | |||
597 | fn main() { let _ = crate::$0 } | ||
598 | "#, | ||
599 | expect![[r##" | ||
600 | fn main() -> () | ||
601 | ma foo!(…) #[macro_export] macro_rules! foo | ||
602 | "##]], | ||
603 | ); | ||
604 | } | ||
605 | |||
606 | #[test] | ||
607 | fn test_super_super_completion() { | ||
608 | check( | ||
609 | r#" | ||
610 | mod a { | ||
611 | const A: usize = 0; | ||
612 | mod b { | ||
613 | const B: usize = 0; | ||
614 | mod c { use super::super::$0 } | ||
615 | } | ||
616 | } | ||
617 | "#, | ||
618 | expect![[r#" | ||
619 | md b | ||
620 | ct A | ||
621 | "#]], | ||
622 | ); | ||
623 | } | ||
624 | |||
625 | #[test] | ||
626 | fn completes_reexported_items_under_correct_name() { | ||
627 | check( | ||
628 | r#" | ||
629 | fn foo() { self::m::$0 } | ||
630 | |||
631 | mod m { | ||
632 | pub use super::p::wrong_fn as right_fn; | ||
633 | pub use super::p::WRONG_CONST as RIGHT_CONST; | ||
634 | pub use super::p::WrongType as RightType; | ||
635 | } | ||
636 | mod p { | ||
637 | fn wrong_fn() {} | ||
638 | const WRONG_CONST: u32 = 1; | ||
639 | struct WrongType {}; | ||
640 | } | ||
641 | "#, | ||
642 | expect![[r#" | ||
643 | ct RIGHT_CONST | ||
644 | fn right_fn() -> () | ||
645 | st RightType | ||
646 | "#]], | ||
647 | ); | ||
648 | |||
649 | check_edit( | ||
650 | "RightType", | ||
651 | r#" | ||
652 | fn foo() { self::m::$0 } | ||
653 | |||
654 | mod m { | ||
655 | pub use super::p::wrong_fn as right_fn; | ||
656 | pub use super::p::WRONG_CONST as RIGHT_CONST; | ||
657 | pub use super::p::WrongType as RightType; | ||
658 | } | ||
659 | mod p { | ||
660 | fn wrong_fn() {} | ||
661 | const WRONG_CONST: u32 = 1; | ||
662 | struct WrongType {}; | ||
663 | } | ||
664 | "#, | ||
665 | r#" | ||
666 | fn foo() { self::m::RightType } | ||
667 | |||
668 | mod m { | ||
669 | pub use super::p::wrong_fn as right_fn; | ||
670 | pub use super::p::WRONG_CONST as RIGHT_CONST; | ||
671 | pub use super::p::WrongType as RightType; | ||
672 | } | ||
673 | mod p { | ||
674 | fn wrong_fn() {} | ||
675 | const WRONG_CONST: u32 = 1; | ||
676 | struct WrongType {}; | ||
677 | } | ||
678 | "#, | ||
679 | ); | ||
680 | } | ||
681 | |||
682 | #[test] | ||
683 | fn completes_in_simple_macro_call() { | ||
684 | check( | ||
685 | r#" | ||
686 | macro_rules! m { ($e:expr) => { $e } } | ||
687 | fn main() { m!(self::f$0); } | ||
688 | fn foo() {} | ||
689 | "#, | ||
690 | expect![[r#" | ||
691 | fn main() -> () | ||
692 | fn foo() -> () | ||
693 | "#]], | ||
694 | ); | ||
695 | } | ||
696 | |||
697 | #[test] | ||
698 | fn function_mod_share_name() { | ||
699 | check( | ||
700 | r#" | ||
701 | fn foo() { self::m::$0 } | ||
702 | |||
703 | mod m { | ||
704 | pub mod z {} | ||
705 | pub fn z() {} | ||
706 | } | ||
707 | "#, | ||
708 | expect![[r#" | ||
709 | md z | ||
710 | fn z() -> () | ||
711 | "#]], | ||
712 | ); | ||
713 | } | ||
714 | |||
715 | #[test] | ||
716 | fn completes_hashmap_new() { | ||
717 | check( | ||
718 | r#" | ||
719 | struct RandomState; | ||
720 | struct HashMap<K, V, S = RandomState> {} | ||
721 | |||
722 | impl<K, V> HashMap<K, V, RandomState> { | ||
723 | pub fn new() -> HashMap<K, V, RandomState> { } | ||
724 | } | ||
725 | fn foo() { | ||
726 | HashMap::$0 | ||
727 | } | ||
728 | "#, | ||
729 | expect![[r#" | ||
730 | fn new() -> HashMap<K, V, RandomState> | ||
731 | "#]], | ||
732 | ); | ||
733 | } | ||
734 | |||
735 | #[test] | ||
736 | fn dont_complete_attr() { | ||
737 | check( | ||
738 | r#" | ||
739 | mod foo { pub struct Foo; } | ||
740 | #[foo::$0] | ||
741 | fn f() {} | ||
742 | "#, | ||
743 | expect![[""]], | ||
744 | ); | ||
745 | } | ||
746 | |||
747 | #[test] | ||
748 | fn completes_function() { | ||
749 | check( | ||
750 | r#" | ||
751 | fn foo( | ||
752 | a: i32, | ||
753 | b: i32 | ||
754 | ) { | ||
755 | |||
756 | } | ||
757 | |||
758 | fn main() { | ||
759 | fo$0 | ||
760 | } | ||
761 | "#, | ||
762 | expect![[r#" | ||
763 | fn main() -> () | ||
764 | fn foo(…) -> () | ||
765 | "#]], | ||
766 | ); | ||
767 | } | ||
768 | |||
769 | #[test] | ||
770 | fn completes_self_enum() { | ||
771 | check( | ||
772 | r#" | ||
773 | enum Foo { | ||
774 | Bar, | ||
775 | Baz, | ||
776 | } | ||
777 | |||
778 | impl Foo { | ||
779 | fn foo(self) { | ||
780 | Self::$0 | ||
781 | } | ||
782 | } | ||
783 | "#, | ||
784 | expect![[r#" | ||
785 | ev Bar () | ||
786 | ev Baz () | ||
787 | me foo(…) -> () | ||
788 | "#]], | ||
789 | ); | ||
790 | } | ||
791 | |||
792 | #[test] | ||
793 | fn completes_primitive_assoc_const() { | ||
794 | check( | ||
795 | r#" | ||
796 | //- /lib.rs crate:lib deps:core | ||
797 | fn f() { | ||
798 | u8::$0 | ||
799 | } | ||
800 | |||
801 | //- /core.rs crate:core | ||
802 | #[lang = "u8"] | ||
803 | impl u8 { | ||
804 | pub const MAX: Self = 255; | ||
805 | |||
806 | pub fn func(self) {} | ||
807 | } | ||
808 | "#, | ||
809 | expect![[r#" | ||
810 | ct MAX pub const MAX: Self = 255; | ||
811 | me func(…) -> () | ||
812 | "#]], | ||
813 | ); | ||
814 | } | ||
815 | } | ||