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 ..Default::default()
522 },
523 },
524 DiagnosticEntry {
525 range: PointUtf16::new(1, 9)..PointUtf16::new(1, 11),
526 diagnostic: Diagnostic {
527 severity: DiagnosticSeverity::ERROR,
528 message: "undefined variable 'BB'".to_string(),
529 ..Default::default()
530 },
531 },
532 DiagnosticEntry {
533 range: PointUtf16::new(2, 9)..PointUtf16::new(2, 12),
534 diagnostic: Diagnostic {
535 severity: DiagnosticSeverity::ERROR,
536 message: "undefined variable 'CCC'".to_string(),
537 ..Default::default()
538 },
539 },
540 ],
541 cx,
542 )
543 .unwrap();
544
545 // The diagnostics have moved down since they were created.
546 assert_eq!(
547 buffer
548 .snapshot()
549 .diagnostics_in_range::<_, Point>(Point::new(3, 0)..Point::new(5, 0))
550 .collect::<Vec<_>>(),
551 &[
552 DiagnosticEntry {
553 range: Point::new(3, 9)..Point::new(3, 11),
554 diagnostic: Diagnostic {
555 severity: DiagnosticSeverity::ERROR,
556 message: "undefined variable 'BB'".to_string(),
557 group_id: 1,
558 is_primary: true,
559 ..Default::default()
560 },
561 },
562 DiagnosticEntry {
563 range: Point::new(4, 9)..Point::new(4, 12),
564 diagnostic: Diagnostic {
565 severity: DiagnosticSeverity::ERROR,
566 message: "undefined variable 'CCC'".to_string(),
567 group_id: 2,
568 is_primary: true,
569 ..Default::default()
570 }
571 }
572 ]
573 );
574 assert_eq!(
575 chunks_with_diagnostics(buffer, 0..buffer.len()),
576 [
577 ("\n\nfn a() { ".to_string(), None),
578 ("A".to_string(), Some(DiagnosticSeverity::ERROR)),
579 (" }\nfn b() { ".to_string(), None),
580 ("BB".to_string(), Some(DiagnosticSeverity::ERROR)),
581 (" }\nfn c() { ".to_string(), None),
582 ("CCC".to_string(), Some(DiagnosticSeverity::ERROR)),
583 (" }\n".to_string(), None),
584 ]
585 );
586 assert_eq!(
587 chunks_with_diagnostics(buffer, Point::new(3, 10)..Point::new(4, 11)),
588 [
589 ("B".to_string(), Some(DiagnosticSeverity::ERROR)),
590 (" }\nfn c() { ".to_string(), None),
591 ("CC".to_string(), Some(DiagnosticSeverity::ERROR)),
592 ]
593 );
594
595 // Ensure overlapping diagnostics are highlighted correctly.
596 buffer
597 .update_diagnostics(
598 Some(open_notification.text_document.version),
599 vec![
600 DiagnosticEntry {
601 range: PointUtf16::new(0, 9)..PointUtf16::new(0, 10),
602 diagnostic: Diagnostic {
603 severity: DiagnosticSeverity::ERROR,
604 message: "undefined variable 'A'".to_string(),
605 ..Default::default()
606 },
607 },
608 DiagnosticEntry {
609 range: PointUtf16::new(0, 9)..PointUtf16::new(0, 12),
610 diagnostic: Diagnostic {
611 severity: DiagnosticSeverity::WARNING,
612 message: "unreachable statement".to_string(),
613 ..Default::default()
614 },
615 },
616 ],
617 cx,
618 )
619 .unwrap();
620 assert_eq!(
621 buffer
622 .snapshot()
623 .diagnostics_in_range::<_, Point>(Point::new(2, 0)..Point::new(3, 0))
624 .collect::<Vec<_>>(),
625 &[
626 DiagnosticEntry {
627 range: Point::new(2, 9)..Point::new(2, 12),
628 diagnostic: Diagnostic {
629 severity: DiagnosticSeverity::WARNING,
630 message: "unreachable statement".to_string(),
631 group_id: 1,
632 is_primary: true,
633 ..Default::default()
634 }
635 },
636 DiagnosticEntry {
637 range: Point::new(2, 9)..Point::new(2, 10),
638 diagnostic: Diagnostic {
639 severity: DiagnosticSeverity::ERROR,
640 message: "undefined variable 'A'".to_string(),
641 group_id: 0,
642 is_primary: true,
643 ..Default::default()
644 },
645 }
646 ]
647 );
648 assert_eq!(
649 chunks_with_diagnostics(buffer, Point::new(2, 0)..Point::new(3, 0)),
650 [
651 ("fn a() { ".to_string(), None),
652 ("A".to_string(), Some(DiagnosticSeverity::ERROR)),
653 (" }".to_string(), Some(DiagnosticSeverity::WARNING)),
654 ("\n".to_string(), None),
655 ]
656 );
657 assert_eq!(
658 chunks_with_diagnostics(buffer, Point::new(2, 10)..Point::new(3, 0)),
659 [
660 (" }".to_string(), Some(DiagnosticSeverity::WARNING)),
661 ("\n".to_string(), None),
662 ]
663 );
664 });
665
666 // Keep editing the buffer and ensure disk-based diagnostics get translated according to the
667 // changes since the last save.
668 buffer.update(&mut cx, |buffer, cx| {
669 buffer.edit(Some(Point::new(2, 0)..Point::new(2, 0)), " ", cx);
670 buffer.edit(Some(Point::new(2, 8)..Point::new(2, 10)), "(x: usize)", cx);
671 });
672 let change_notification_2 = fake
673 .receive_notification::<lsp::notification::DidChangeTextDocument>()
674 .await;
675 assert!(
676 change_notification_2.text_document.version > change_notification_1.text_document.version
677 );
678
679 buffer.update(&mut cx, |buffer, cx| {
680 buffer
681 .update_diagnostics(
682 Some(change_notification_2.text_document.version),
683 vec![
684 DiagnosticEntry {
685 range: PointUtf16::new(1, 9)..PointUtf16::new(1, 11),
686 diagnostic: Diagnostic {
687 severity: DiagnosticSeverity::ERROR,
688 message: "undefined variable 'BB'".to_string(),
689 source: Some("disk".to_string()),
690 ..Default::default()
691 },
692 },
693 DiagnosticEntry {
694 range: PointUtf16::new(0, 9)..PointUtf16::new(0, 10),
695 diagnostic: Diagnostic {
696 severity: DiagnosticSeverity::ERROR,
697 message: "undefined variable 'A'".to_string(),
698 source: Some("disk".to_string()),
699 ..Default::default()
700 },
701 },
702 ],
703 cx,
704 )
705 .unwrap();
706 assert_eq!(
707 buffer
708 .snapshot()
709 .diagnostics_in_range::<_, Point>(0..buffer.len())
710 .collect::<Vec<_>>(),
711 &[
712 DiagnosticEntry {
713 range: Point::new(2, 21)..Point::new(2, 22),
714 diagnostic: Diagnostic {
715 severity: DiagnosticSeverity::ERROR,
716 message: "undefined variable 'A'".to_string(),
717 group_id: 0,
718 is_primary: true,
719 ..Default::default()
720 }
721 },
722 DiagnosticEntry {
723 range: Point::new(3, 9)..Point::new(3, 11),
724 diagnostic: Diagnostic {
725 severity: DiagnosticSeverity::ERROR,
726 message: "undefined variable 'BB'".to_string(),
727 group_id: 1,
728 is_primary: true,
729 ..Default::default()
730 },
731 }
732 ]
733 );
734 });
735}
736
737#[gpui::test]
738async fn test_empty_diagnostic_ranges(mut cx: gpui::TestAppContext) {
739 cx.add_model(|cx| {
740 let text = concat!(
741 "let one = ;\n", //
742 "let two = \n",
743 "let three = 3;\n",
744 );
745
746 let mut buffer = Buffer::new(0, text, cx);
747 buffer.set_language(Some(Arc::new(rust_lang())), None, cx);
748 buffer
749 .update_diagnostics(
750 None,
751 vec![
752 DiagnosticEntry {
753 range: PointUtf16::new(0, 10)..PointUtf16::new(0, 10),
754 diagnostic: Diagnostic {
755 severity: DiagnosticSeverity::ERROR,
756 message: "syntax error 1".to_string(),
757 ..Default::default()
758 },
759 },
760 DiagnosticEntry {
761 range: PointUtf16::new(1, 10)..PointUtf16::new(1, 10),
762 diagnostic: Diagnostic {
763 severity: DiagnosticSeverity::ERROR,
764 message: "syntax error 2".to_string(),
765 ..Default::default()
766 },
767 },
768 ],
769 cx,
770 )
771 .unwrap();
772
773 // An empty range is extended forward to include the following character.
774 // At the end of a line, an empty range is extended backward to include
775 // the preceding character.
776 let chunks = chunks_with_diagnostics(&buffer, 0..buffer.len());
777 assert_eq!(
778 chunks
779 .iter()
780 .map(|(s, d)| (s.as_str(), *d))
781 .collect::<Vec<_>>(),
782 &[
783 ("let one = ", None),
784 (";", Some(DiagnosticSeverity::ERROR)),
785 ("\nlet two =", None),
786 (" ", Some(DiagnosticSeverity::ERROR)),
787 ("\nlet three = 3;\n", None)
788 ]
789 );
790 buffer
791 });
792}
793
794fn chunks_with_diagnostics<T: ToOffset + ToPoint>(
795 buffer: &Buffer,
796 range: Range<T>,
797) -> Vec<(String, Option<DiagnosticSeverity>)> {
798 let mut chunks: Vec<(String, Option<DiagnosticSeverity>)> = Vec::new();
799 for chunk in buffer.snapshot().chunks(range, Some(&Default::default())) {
800 if chunks
801 .last()
802 .map_or(false, |prev_chunk| prev_chunk.1 == chunk.diagnostic)
803 {
804 chunks.last_mut().unwrap().0.push_str(chunk.text);
805 } else {
806 chunks.push((chunk.text.to_string(), chunk.diagnostic));
807 }
808 }
809 chunks
810}
811
812#[test]
813fn test_contiguous_ranges() {
814 assert_eq!(
815 contiguous_ranges([1, 2, 3, 5, 6, 9, 10, 11, 12].into_iter(), 100).collect::<Vec<_>>(),
816 &[1..4, 5..7, 9..13]
817 );
818
819 // Respects the `max_len` parameter
820 assert_eq!(
821 contiguous_ranges(
822 [2, 3, 4, 5, 6, 7, 8, 9, 23, 24, 25, 26, 30, 31].into_iter(),
823 3
824 )
825 .collect::<Vec<_>>(),
826 &[2..5, 5..8, 8..10, 23..26, 26..27, 30..32],
827 );
828}
829
830impl Buffer {
831 pub fn enclosing_bracket_point_ranges<T: ToOffset>(
832 &self,
833 range: Range<T>,
834 ) -> Option<(Range<Point>, Range<Point>)> {
835 self.snapshot()
836 .enclosing_bracket_ranges(range)
837 .map(|(start, end)| {
838 let point_start = start.start.to_point(self)..start.end.to_point(self);
839 let point_end = end.start.to_point(self)..end.end.to_point(self);
840 (point_start, point_end)
841 })
842 }
843}
844
845fn rust_lang() -> Language {
846 Language::new(
847 LanguageConfig {
848 name: "Rust".to_string(),
849 path_suffixes: vec!["rs".to_string()],
850 language_server: None,
851 ..Default::default()
852 },
853 Some(tree_sitter_rust::language()),
854 )
855 .with_indents_query(
856 r#"
857 (call_expression) @indent
858 (field_expression) @indent
859 (_ "(" ")" @end) @indent
860 (_ "{" "}" @end) @indent
861 "#,
862 )
863 .unwrap()
864 .with_brackets_query(r#" ("{" @open "}" @close) "#)
865 .unwrap()
866}
867
868fn empty(point: Point) -> Range<Point> {
869 point..point
870}