1use super::*;
2use gpui::{ModelHandle, MutableAppContext};
3use std::{
4 cell::RefCell,
5 iter::FromIterator,
6 ops::Range,
7 rc::Rc,
8 time::{Duration, Instant},
9};
10use unindent::Unindent as _;
11
12#[cfg(test)]
13#[ctor::ctor]
14fn init_logger() {
15 // std::env::set_var("RUST_LOG", "info");
16 env_logger::init();
17}
18
19#[test]
20fn test_select_language() {
21 let registry = LanguageRegistry {
22 languages: vec![
23 Arc::new(Language::new(
24 LanguageConfig {
25 name: "Rust".to_string(),
26 path_suffixes: vec!["rs".to_string()],
27 ..Default::default()
28 },
29 Some(tree_sitter_rust::language()),
30 )),
31 Arc::new(Language::new(
32 LanguageConfig {
33 name: "Make".to_string(),
34 path_suffixes: vec!["Makefile".to_string(), "mk".to_string()],
35 ..Default::default()
36 },
37 Some(tree_sitter_rust::language()),
38 )),
39 ],
40 };
41
42 // matching file extension
43 assert_eq!(
44 registry.select_language("zed/lib.rs").map(|l| l.name()),
45 Some("Rust")
46 );
47 assert_eq!(
48 registry.select_language("zed/lib.mk").map(|l| l.name()),
49 Some("Make")
50 );
51
52 // matching filename
53 assert_eq!(
54 registry.select_language("zed/Makefile").map(|l| l.name()),
55 Some("Make")
56 );
57
58 // matching suffix that is not the full file extension or filename
59 assert_eq!(registry.select_language("zed/cars").map(|l| l.name()), None);
60 assert_eq!(
61 registry.select_language("zed/a.cars").map(|l| l.name()),
62 None
63 );
64 assert_eq!(registry.select_language("zed/sumk").map(|l| l.name()), None);
65}
66
67#[gpui::test]
68fn test_edit_events(cx: &mut gpui::MutableAppContext) {
69 let mut now = Instant::now();
70 let buffer_1_events = Rc::new(RefCell::new(Vec::new()));
71 let buffer_2_events = Rc::new(RefCell::new(Vec::new()));
72
73 let buffer1 = cx.add_model(|cx| Buffer::new(0, "abcdef", cx));
74 let buffer2 = cx.add_model(|cx| Buffer::new(1, "abcdef", cx));
75 let buffer_ops = buffer1.update(cx, |buffer, cx| {
76 let buffer_1_events = buffer_1_events.clone();
77 cx.subscribe(&buffer1, move |_, _, event, _| {
78 buffer_1_events.borrow_mut().push(event.clone())
79 })
80 .detach();
81 let buffer_2_events = buffer_2_events.clone();
82 cx.subscribe(&buffer2, move |_, _, event, _| {
83 buffer_2_events.borrow_mut().push(event.clone())
84 })
85 .detach();
86
87 // An edit emits an edited event, followed by a dirtied event,
88 // since the buffer was previously in a clean state.
89 buffer.edit(Some(2..4), "XYZ", cx);
90
91 // An empty transaction does not emit any events.
92 buffer.start_transaction();
93 buffer.end_transaction(cx);
94
95 // A transaction containing two edits emits one edited event.
96 now += Duration::from_secs(1);
97 buffer.start_transaction_at(now);
98 buffer.edit(Some(5..5), "u", cx);
99 buffer.edit(Some(6..6), "w", cx);
100 buffer.end_transaction_at(now, cx);
101
102 // Undoing a transaction emits one edited event.
103 buffer.undo(cx);
104
105 buffer.operations.clone()
106 });
107
108 // Incorporating a set of remote ops emits a single edited event,
109 // followed by a dirtied event.
110 buffer2.update(cx, |buffer, cx| {
111 buffer.apply_ops(buffer_ops, cx).unwrap();
112 });
113
114 let buffer_1_events = buffer_1_events.borrow();
115 assert_eq!(
116 *buffer_1_events,
117 vec![Event::Edited, Event::Dirtied, Event::Edited, Event::Edited]
118 );
119
120 let buffer_2_events = buffer_2_events.borrow();
121 assert_eq!(*buffer_2_events, vec![Event::Edited, Event::Dirtied]);
122}
123
124#[gpui::test]
125async fn test_apply_diff(mut cx: gpui::TestAppContext) {
126 let text = "a\nbb\nccc\ndddd\neeeee\nffffff\n";
127 let buffer = cx.add_model(|cx| Buffer::new(0, text, cx));
128
129 let text = "a\nccc\ndddd\nffffff\n";
130 let diff = buffer.read_with(&cx, |b, cx| b.diff(text.into(), cx)).await;
131 buffer.update(&mut cx, |b, cx| b.apply_diff(diff, cx));
132 cx.read(|cx| assert_eq!(buffer.read(cx).text(), text));
133
134 let text = "a\n1\n\nccc\ndd2dd\nffffff\n";
135 let diff = buffer.read_with(&cx, |b, cx| b.diff(text.into(), cx)).await;
136 buffer.update(&mut cx, |b, cx| b.apply_diff(diff, cx));
137 cx.read(|cx| assert_eq!(buffer.read(cx).text(), text));
138}
139
140#[gpui::test]
141async fn test_reparse(mut cx: gpui::TestAppContext) {
142 let text = "fn a() {}";
143 let buffer = cx.add_model(|cx| {
144 Buffer::new(0, text, cx).with_language(Some(Arc::new(rust_lang())), None, cx)
145 });
146
147 // Wait for the initial text to parse
148 buffer
149 .condition(&cx, |buffer, _| !buffer.is_parsing())
150 .await;
151 assert_eq!(
152 get_tree_sexp(&buffer, &cx),
153 concat!(
154 "(source_file (function_item name: (identifier) ",
155 "parameters: (parameters) ",
156 "body: (block)))"
157 )
158 );
159
160 buffer.update(&mut cx, |buffer, _| {
161 buffer.set_sync_parse_timeout(Duration::ZERO)
162 });
163
164 // Perform some edits (add parameter and variable reference)
165 // Parsing doesn't begin until the transaction is complete
166 buffer.update(&mut cx, |buf, cx| {
167 buf.start_transaction();
168
169 let offset = buf.text().find(")").unwrap();
170 buf.edit(vec![offset..offset], "b: C", cx);
171 assert!(!buf.is_parsing());
172
173 let offset = buf.text().find("}").unwrap();
174 buf.edit(vec![offset..offset], " d; ", cx);
175 assert!(!buf.is_parsing());
176
177 buf.end_transaction(cx);
178 assert_eq!(buf.text(), "fn a(b: C) { d; }");
179 assert!(buf.is_parsing());
180 });
181 buffer
182 .condition(&cx, |buffer, _| !buffer.is_parsing())
183 .await;
184 assert_eq!(
185 get_tree_sexp(&buffer, &cx),
186 concat!(
187 "(source_file (function_item name: (identifier) ",
188 "parameters: (parameters (parameter pattern: (identifier) type: (type_identifier))) ",
189 "body: (block (identifier))))"
190 )
191 );
192
193 // Perform a series of edits without waiting for the current parse to complete:
194 // * turn identifier into a field expression
195 // * turn field expression into a method call
196 // * add a turbofish to the method call
197 buffer.update(&mut cx, |buf, cx| {
198 let offset = buf.text().find(";").unwrap();
199 buf.edit(vec![offset..offset], ".e", cx);
200 assert_eq!(buf.text(), "fn a(b: C) { d.e; }");
201 assert!(buf.is_parsing());
202 });
203 buffer.update(&mut cx, |buf, cx| {
204 let offset = buf.text().find(";").unwrap();
205 buf.edit(vec![offset..offset], "(f)", cx);
206 assert_eq!(buf.text(), "fn a(b: C) { d.e(f); }");
207 assert!(buf.is_parsing());
208 });
209 buffer.update(&mut cx, |buf, cx| {
210 let offset = buf.text().find("(f)").unwrap();
211 buf.edit(vec![offset..offset], "::<G>", cx);
212 assert_eq!(buf.text(), "fn a(b: C) { d.e::<G>(f); }");
213 assert!(buf.is_parsing());
214 });
215 buffer
216 .condition(&cx, |buffer, _| !buffer.is_parsing())
217 .await;
218 assert_eq!(
219 get_tree_sexp(&buffer, &cx),
220 concat!(
221 "(source_file (function_item name: (identifier) ",
222 "parameters: (parameters (parameter pattern: (identifier) type: (type_identifier))) ",
223 "body: (block (call_expression ",
224 "function: (generic_function ",
225 "function: (field_expression value: (identifier) field: (field_identifier)) ",
226 "type_arguments: (type_arguments (type_identifier))) ",
227 "arguments: (arguments (identifier))))))",
228 )
229 );
230
231 buffer.update(&mut cx, |buf, cx| {
232 buf.undo(cx);
233 assert_eq!(buf.text(), "fn a() {}");
234 assert!(buf.is_parsing());
235 });
236 buffer
237 .condition(&cx, |buffer, _| !buffer.is_parsing())
238 .await;
239 assert_eq!(
240 get_tree_sexp(&buffer, &cx),
241 concat!(
242 "(source_file (function_item name: (identifier) ",
243 "parameters: (parameters) ",
244 "body: (block)))"
245 )
246 );
247
248 buffer.update(&mut cx, |buf, cx| {
249 buf.redo(cx);
250 assert_eq!(buf.text(), "fn a(b: C) { d.e::<G>(f); }");
251 assert!(buf.is_parsing());
252 });
253 buffer
254 .condition(&cx, |buffer, _| !buffer.is_parsing())
255 .await;
256 assert_eq!(
257 get_tree_sexp(&buffer, &cx),
258 concat!(
259 "(source_file (function_item name: (identifier) ",
260 "parameters: (parameters (parameter pattern: (identifier) type: (type_identifier))) ",
261 "body: (block (call_expression ",
262 "function: (generic_function ",
263 "function: (field_expression value: (identifier) field: (field_identifier)) ",
264 "type_arguments: (type_arguments (type_identifier))) ",
265 "arguments: (arguments (identifier))))))",
266 )
267 );
268
269 fn get_tree_sexp(buffer: &ModelHandle<Buffer>, cx: &gpui::TestAppContext) -> String {
270 buffer.read_with(cx, |buffer, _| {
271 buffer.syntax_tree().unwrap().root_node().to_sexp()
272 })
273 }
274}
275
276#[gpui::test]
277fn test_enclosing_bracket_ranges(cx: &mut MutableAppContext) {
278 let buffer = cx.add_model(|cx| {
279 let text = "
280 mod x {
281 mod y {
282
283 }
284 }
285 "
286 .unindent();
287 Buffer::new(0, text, cx).with_language(Some(Arc::new(rust_lang())), None, cx)
288 });
289 let buffer = buffer.read(cx);
290 assert_eq!(
291 buffer.enclosing_bracket_point_ranges(Point::new(1, 6)..Point::new(1, 6)),
292 Some((
293 Point::new(0, 6)..Point::new(0, 7),
294 Point::new(4, 0)..Point::new(4, 1)
295 ))
296 );
297 assert_eq!(
298 buffer.enclosing_bracket_point_ranges(Point::new(1, 10)..Point::new(1, 10)),
299 Some((
300 Point::new(1, 10)..Point::new(1, 11),
301 Point::new(3, 4)..Point::new(3, 5)
302 ))
303 );
304 assert_eq!(
305 buffer.enclosing_bracket_point_ranges(Point::new(3, 5)..Point::new(3, 5)),
306 Some((
307 Point::new(1, 10)..Point::new(1, 11),
308 Point::new(3, 4)..Point::new(3, 5)
309 ))
310 );
311}
312
313#[gpui::test]
314fn test_edit_with_autoindent(cx: &mut MutableAppContext) {
315 cx.add_model(|cx| {
316 let text = "fn a() {}";
317 let mut buffer =
318 Buffer::new(0, text, cx).with_language(Some(Arc::new(rust_lang())), None, cx);
319
320 buffer.edit_with_autoindent([8..8], "\n\n", cx);
321 assert_eq!(buffer.text(), "fn a() {\n \n}");
322
323 buffer.edit_with_autoindent([Point::new(1, 4)..Point::new(1, 4)], "b()\n", cx);
324 assert_eq!(buffer.text(), "fn a() {\n b()\n \n}");
325
326 buffer.edit_with_autoindent([Point::new(2, 4)..Point::new(2, 4)], ".c", cx);
327 assert_eq!(buffer.text(), "fn a() {\n b()\n .c\n}");
328
329 buffer
330 });
331}
332
333// We need another approach to managing selections with auto-indent
334
335// #[gpui::test]
336// fn test_autoindent_moves_selections(cx: &mut MutableAppContext) {
337// cx.add_model(|cx| {
338// let text = "fn a() {}";
339
340// let mut buffer =
341// Buffer::new(0, text, cx).with_language(Some(Arc::new(rust_lang())), None, cx);
342
343// let selection_set_id = buffer.add_selection_set::<usize>(&[], cx);
344// buffer.start_transaction();
345// buffer.edit_with_autoindent([5..5, 9..9], "\n\n", cx);
346// buffer
347// .update_selection_set(
348// selection_set_id,
349// &[
350// Selection {
351// id: 0,
352// start: Point::new(1, 0),
353// end: Point::new(1, 0),
354// reversed: false,
355// goal: SelectionGoal::None,
356// },
357// Selection {
358// id: 1,
359// start: Point::new(4, 0),
360// end: Point::new(4, 0),
361// reversed: false,
362// goal: SelectionGoal::None,
363// },
364// ],
365// cx,
366// )
367// .unwrap();
368// assert_eq!(buffer.text(), "fn a(\n\n) {}\n\n");
369
370// // TODO! Come up with a different approach to moving selections now that we don't manage selection sets in the buffer
371
372// // Ending the transaction runs the auto-indent. The selection
373// // at the start of the auto-indented row is pushed to the right.
374// buffer.end_transaction(cx);
375// assert_eq!(buffer.text(), "fn a(\n \n) {}\n\n");
376// let selection_ranges = buffer
377// .selection_set(selection_set_id)
378// .unwrap()
379// .selections::<Point>(&buffer)
380// .map(|selection| selection.start.to_point(&buffer)..selection.end.to_point(&buffer))
381// .collect::<Vec<_>>();
382
383// assert_eq!(selection_ranges[0], empty(Point::new(1, 4)));
384// assert_eq!(selection_ranges[1], empty(Point::new(4, 0)));
385
386// buffer
387// });
388// }
389#[gpui::test]
390fn test_autoindent_does_not_adjust_lines_with_unchanged_suggestion(cx: &mut MutableAppContext) {
391 cx.add_model(|cx| {
392 let text = "
393 fn a() {
394 c;
395 d;
396 }
397 "
398 .unindent();
399
400 let mut buffer =
401 Buffer::new(0, text, cx).with_language(Some(Arc::new(rust_lang())), None, cx);
402
403 // Lines 2 and 3 don't match the indentation suggestion. When editing these lines,
404 // their indentation is not adjusted.
405 buffer.edit_with_autoindent([empty(Point::new(1, 1)), empty(Point::new(2, 1))], "()", cx);
406 assert_eq!(
407 buffer.text(),
408 "
409 fn a() {
410 c();
411 d();
412 }
413 "
414 .unindent()
415 );
416
417 // When appending new content after these lines, the indentation is based on the
418 // preceding lines' actual indentation.
419 buffer.edit_with_autoindent(
420 [empty(Point::new(1, 1)), empty(Point::new(2, 1))],
421 "\n.f\n.g",
422 cx,
423 );
424 assert_eq!(
425 buffer.text(),
426 "
427 fn a() {
428 c
429 .f
430 .g();
431 d
432 .f
433 .g();
434 }
435 "
436 .unindent()
437 );
438 buffer
439 });
440}
441
442#[gpui::test]
443fn test_autoindent_adjusts_lines_when_only_text_changes(cx: &mut MutableAppContext) {
444 cx.add_model(|cx| {
445 let text = "
446 fn a() {}
447 "
448 .unindent();
449
450 let mut buffer =
451 Buffer::new(0, text, cx).with_language(Some(Arc::new(rust_lang())), None, cx);
452
453 buffer.edit_with_autoindent([5..5], "\nb", cx);
454 assert_eq!(
455 buffer.text(),
456 "
457 fn a(
458 b) {}
459 "
460 .unindent()
461 );
462
463 // The indentation suggestion changed because `@end` node (a close paren)
464 // is now at the beginning of the line.
465 buffer.edit_with_autoindent([Point::new(1, 4)..Point::new(1, 5)], "", cx);
466 assert_eq!(
467 buffer.text(),
468 "
469 fn a(
470 ) {}
471 "
472 .unindent()
473 );
474
475 buffer
476 });
477}
478
479#[gpui::test]
480async fn test_diagnostics(mut cx: gpui::TestAppContext) {
481 let (language_server, mut fake) = lsp::LanguageServer::fake(cx.background()).await;
482 let mut rust_lang = rust_lang();
483 rust_lang.config.language_server = Some(LanguageServerConfig {
484 disk_based_diagnostic_sources: HashSet::from_iter(["disk".to_string()]),
485 ..Default::default()
486 });
487
488 let text = "
489 fn a() { A }
490 fn b() { BB }
491 fn c() { CCC }
492 "
493 .unindent();
494
495 let buffer = cx.add_model(|cx| {
496 Buffer::new(0, text, cx).with_language(Some(Arc::new(rust_lang)), Some(language_server), cx)
497 });
498
499 let open_notification = fake
500 .receive_notification::<lsp::notification::DidOpenTextDocument>()
501 .await;
502
503 // Edit the buffer, moving the content down
504 buffer.update(&mut cx, |buffer, cx| buffer.edit([0..0], "\n\n", cx));
505 let change_notification_1 = fake
506 .receive_notification::<lsp::notification::DidChangeTextDocument>()
507 .await;
508 assert!(change_notification_1.text_document.version > open_notification.text_document.version);
509
510 buffer.update(&mut cx, |buffer, cx| {
511 // Receive diagnostics for an earlier version of the buffer.
512 buffer
513 .update_diagnostics(
514 Some(open_notification.text_document.version),
515 vec![
516 DiagnosticEntry {
517 range: PointUtf16::new(0, 9)..PointUtf16::new(0, 10),
518 diagnostic: Diagnostic {
519 severity: DiagnosticSeverity::ERROR,
520 message: "undefined variable 'A'".to_string(),
521 group_id: 0,
522 is_primary: true,
523 ..Default::default()
524 },
525 },
526 DiagnosticEntry {
527 range: PointUtf16::new(1, 9)..PointUtf16::new(1, 11),
528 diagnostic: Diagnostic {
529 severity: DiagnosticSeverity::ERROR,
530 message: "undefined variable 'BB'".to_string(),
531 group_id: 1,
532 is_primary: true,
533 ..Default::default()
534 },
535 },
536 DiagnosticEntry {
537 range: PointUtf16::new(2, 9)..PointUtf16::new(2, 12),
538 diagnostic: Diagnostic {
539 severity: DiagnosticSeverity::ERROR,
540 message: "undefined variable 'CCC'".to_string(),
541 group_id: 2,
542 is_primary: true,
543 ..Default::default()
544 },
545 },
546 ],
547 cx,
548 )
549 .unwrap();
550
551 // The diagnostics have moved down since they were created.
552 assert_eq!(
553 buffer
554 .snapshot()
555 .diagnostics_in_range::<_, Point>(Point::new(3, 0)..Point::new(5, 0))
556 .collect::<Vec<_>>(),
557 &[
558 DiagnosticEntry {
559 range: Point::new(3, 9)..Point::new(3, 11),
560 diagnostic: Diagnostic {
561 severity: DiagnosticSeverity::ERROR,
562 message: "undefined variable 'BB'".to_string(),
563 group_id: 1,
564 is_primary: true,
565 ..Default::default()
566 },
567 },
568 DiagnosticEntry {
569 range: Point::new(4, 9)..Point::new(4, 12),
570 diagnostic: Diagnostic {
571 severity: DiagnosticSeverity::ERROR,
572 message: "undefined variable 'CCC'".to_string(),
573 group_id: 2,
574 is_primary: true,
575 ..Default::default()
576 }
577 }
578 ]
579 );
580 assert_eq!(
581 chunks_with_diagnostics(buffer, 0..buffer.len()),
582 [
583 ("\n\nfn a() { ".to_string(), None),
584 ("A".to_string(), Some(DiagnosticSeverity::ERROR)),
585 (" }\nfn b() { ".to_string(), None),
586 ("BB".to_string(), Some(DiagnosticSeverity::ERROR)),
587 (" }\nfn c() { ".to_string(), None),
588 ("CCC".to_string(), Some(DiagnosticSeverity::ERROR)),
589 (" }\n".to_string(), None),
590 ]
591 );
592 assert_eq!(
593 chunks_with_diagnostics(buffer, Point::new(3, 10)..Point::new(4, 11)),
594 [
595 ("B".to_string(), Some(DiagnosticSeverity::ERROR)),
596 (" }\nfn c() { ".to_string(), None),
597 ("CC".to_string(), Some(DiagnosticSeverity::ERROR)),
598 ]
599 );
600
601 // Ensure overlapping diagnostics are highlighted correctly.
602 buffer
603 .update_diagnostics(
604 Some(open_notification.text_document.version),
605 vec![
606 DiagnosticEntry {
607 range: PointUtf16::new(0, 9)..PointUtf16::new(0, 10),
608 diagnostic: Diagnostic {
609 severity: DiagnosticSeverity::ERROR,
610 message: "undefined variable 'A'".to_string(),
611 group_id: 0,
612 is_primary: true,
613 ..Default::default()
614 },
615 },
616 DiagnosticEntry {
617 range: PointUtf16::new(0, 9)..PointUtf16::new(0, 12),
618 diagnostic: Diagnostic {
619 severity: DiagnosticSeverity::WARNING,
620 message: "unreachable statement".to_string(),
621 group_id: 1,
622 is_primary: true,
623 ..Default::default()
624 },
625 },
626 ],
627 cx,
628 )
629 .unwrap();
630 assert_eq!(
631 buffer
632 .snapshot()
633 .diagnostics_in_range::<_, Point>(Point::new(2, 0)..Point::new(3, 0))
634 .collect::<Vec<_>>(),
635 &[
636 DiagnosticEntry {
637 range: Point::new(2, 9)..Point::new(2, 12),
638 diagnostic: Diagnostic {
639 severity: DiagnosticSeverity::WARNING,
640 message: "unreachable statement".to_string(),
641 group_id: 1,
642 is_primary: true,
643 ..Default::default()
644 }
645 },
646 DiagnosticEntry {
647 range: Point::new(2, 9)..Point::new(2, 10),
648 diagnostic: Diagnostic {
649 severity: DiagnosticSeverity::ERROR,
650 message: "undefined variable 'A'".to_string(),
651 group_id: 0,
652 is_primary: true,
653 ..Default::default()
654 },
655 }
656 ]
657 );
658 assert_eq!(
659 chunks_with_diagnostics(buffer, Point::new(2, 0)..Point::new(3, 0)),
660 [
661 ("fn a() { ".to_string(), None),
662 ("A".to_string(), Some(DiagnosticSeverity::ERROR)),
663 (" }".to_string(), Some(DiagnosticSeverity::WARNING)),
664 ("\n".to_string(), None),
665 ]
666 );
667 assert_eq!(
668 chunks_with_diagnostics(buffer, Point::new(2, 10)..Point::new(3, 0)),
669 [
670 (" }".to_string(), Some(DiagnosticSeverity::WARNING)),
671 ("\n".to_string(), None),
672 ]
673 );
674 });
675
676 // Keep editing the buffer and ensure disk-based diagnostics get translated according to the
677 // changes since the last save.
678 buffer.update(&mut cx, |buffer, cx| {
679 buffer.edit(Some(Point::new(2, 0)..Point::new(2, 0)), " ", cx);
680 buffer.edit(Some(Point::new(2, 8)..Point::new(2, 10)), "(x: usize)", cx);
681 });
682 let change_notification_2 = fake
683 .receive_notification::<lsp::notification::DidChangeTextDocument>()
684 .await;
685 assert!(
686 change_notification_2.text_document.version > change_notification_1.text_document.version
687 );
688
689 buffer.update(&mut cx, |buffer, cx| {
690 buffer
691 .update_diagnostics(
692 Some(change_notification_2.text_document.version),
693 vec![
694 DiagnosticEntry {
695 range: PointUtf16::new(1, 9)..PointUtf16::new(1, 11),
696 diagnostic: Diagnostic {
697 severity: DiagnosticSeverity::ERROR,
698 message: "undefined variable 'BB'".to_string(),
699 source: Some("disk".to_string()),
700 group_id: 1,
701 is_primary: true,
702 ..Default::default()
703 },
704 },
705 DiagnosticEntry {
706 range: PointUtf16::new(0, 9)..PointUtf16::new(0, 10),
707 diagnostic: Diagnostic {
708 severity: DiagnosticSeverity::ERROR,
709 message: "undefined variable 'A'".to_string(),
710 source: Some("disk".to_string()),
711 group_id: 0,
712 is_primary: true,
713 ..Default::default()
714 },
715 },
716 ],
717 cx,
718 )
719 .unwrap();
720 assert_eq!(
721 buffer
722 .snapshot()
723 .diagnostics_in_range::<_, Point>(0..buffer.len())
724 .collect::<Vec<_>>(),
725 &[
726 DiagnosticEntry {
727 range: Point::new(2, 21)..Point::new(2, 22),
728 diagnostic: Diagnostic {
729 severity: DiagnosticSeverity::ERROR,
730 message: "undefined variable 'A'".to_string(),
731 source: Some("disk".to_string()),
732 group_id: 0,
733 is_primary: true,
734 ..Default::default()
735 }
736 },
737 DiagnosticEntry {
738 range: Point::new(3, 9)..Point::new(3, 11),
739 diagnostic: Diagnostic {
740 severity: DiagnosticSeverity::ERROR,
741 message: "undefined variable 'BB'".to_string(),
742 source: Some("disk".to_string()),
743 group_id: 1,
744 is_primary: true,
745 ..Default::default()
746 },
747 }
748 ]
749 );
750 });
751}
752
753#[gpui::test]
754async fn test_empty_diagnostic_ranges(mut cx: gpui::TestAppContext) {
755 cx.add_model(|cx| {
756 let text = concat!(
757 "let one = ;\n", //
758 "let two = \n",
759 "let three = 3;\n",
760 );
761
762 let mut buffer = Buffer::new(0, text, cx);
763 buffer.set_language(Some(Arc::new(rust_lang())), None, cx);
764 buffer
765 .update_diagnostics(
766 None,
767 vec![
768 DiagnosticEntry {
769 range: PointUtf16::new(0, 10)..PointUtf16::new(0, 10),
770 diagnostic: Diagnostic {
771 severity: DiagnosticSeverity::ERROR,
772 message: "syntax error 1".to_string(),
773 ..Default::default()
774 },
775 },
776 DiagnosticEntry {
777 range: PointUtf16::new(1, 10)..PointUtf16::new(1, 10),
778 diagnostic: Diagnostic {
779 severity: DiagnosticSeverity::ERROR,
780 message: "syntax error 2".to_string(),
781 ..Default::default()
782 },
783 },
784 ],
785 cx,
786 )
787 .unwrap();
788
789 // An empty range is extended forward to include the following character.
790 // At the end of a line, an empty range is extended backward to include
791 // the preceding character.
792 let chunks = chunks_with_diagnostics(&buffer, 0..buffer.len());
793 assert_eq!(
794 chunks
795 .iter()
796 .map(|(s, d)| (s.as_str(), *d))
797 .collect::<Vec<_>>(),
798 &[
799 ("let one = ", None),
800 (";", Some(DiagnosticSeverity::ERROR)),
801 ("\nlet two =", None),
802 (" ", Some(DiagnosticSeverity::ERROR)),
803 ("\nlet three = 3;\n", None)
804 ]
805 );
806 buffer
807 });
808}
809
810fn chunks_with_diagnostics<T: ToOffset + ToPoint>(
811 buffer: &Buffer,
812 range: Range<T>,
813) -> Vec<(String, Option<DiagnosticSeverity>)> {
814 let mut chunks: Vec<(String, Option<DiagnosticSeverity>)> = Vec::new();
815 for chunk in buffer.snapshot().chunks(range, Some(&Default::default())) {
816 if chunks
817 .last()
818 .map_or(false, |prev_chunk| prev_chunk.1 == chunk.diagnostic)
819 {
820 chunks.last_mut().unwrap().0.push_str(chunk.text);
821 } else {
822 chunks.push((chunk.text.to_string(), chunk.diagnostic));
823 }
824 }
825 chunks
826}
827
828#[test]
829fn test_contiguous_ranges() {
830 assert_eq!(
831 contiguous_ranges([1, 2, 3, 5, 6, 9, 10, 11, 12].into_iter(), 100).collect::<Vec<_>>(),
832 &[1..4, 5..7, 9..13]
833 );
834
835 // Respects the `max_len` parameter
836 assert_eq!(
837 contiguous_ranges(
838 [2, 3, 4, 5, 6, 7, 8, 9, 23, 24, 25, 26, 30, 31].into_iter(),
839 3
840 )
841 .collect::<Vec<_>>(),
842 &[2..5, 5..8, 8..10, 23..26, 26..27, 30..32],
843 );
844}
845
846impl Buffer {
847 pub fn enclosing_bracket_point_ranges<T: ToOffset>(
848 &self,
849 range: Range<T>,
850 ) -> Option<(Range<Point>, Range<Point>)> {
851 self.snapshot()
852 .enclosing_bracket_ranges(range)
853 .map(|(start, end)| {
854 let point_start = start.start.to_point(self)..start.end.to_point(self);
855 let point_end = end.start.to_point(self)..end.end.to_point(self);
856 (point_start, point_end)
857 })
858 }
859}
860
861fn rust_lang() -> Language {
862 Language::new(
863 LanguageConfig {
864 name: "Rust".to_string(),
865 path_suffixes: vec!["rs".to_string()],
866 language_server: None,
867 ..Default::default()
868 },
869 Some(tree_sitter_rust::language()),
870 )
871 .with_indents_query(
872 r#"
873 (call_expression) @indent
874 (field_expression) @indent
875 (_ "(" ")" @end) @indent
876 (_ "{" "}" @end) @indent
877 "#,
878 )
879 .unwrap()
880 .with_brackets_query(r#" ("{" @open "}" @close) "#)
881 .unwrap()
882}
883
884fn empty(point: Point) -> Range<Point> {
885 point..point
886}