1//! Provides `language`-related settings.
2
3use crate::{File, Language, LanguageName, LanguageServerName};
4use anyhow::Result;
5use collections::{HashMap, HashSet};
6use core::slice;
7use ec4rs::{
8 property::{FinalNewline, IndentSize, IndentStyle, TabWidth, TrimTrailingWs},
9 Properties as EditorconfigProperties,
10};
11use globset::{Glob, GlobMatcher, GlobSet, GlobSetBuilder};
12use gpui::App;
13use itertools::{Either, Itertools};
14use schemars::{
15 schema::{InstanceType, ObjectValidation, Schema, SchemaObject, SingleOrVec},
16 JsonSchema,
17};
18use serde::{
19 de::{self, IntoDeserializer, MapAccess, SeqAccess, Visitor},
20 Deserialize, Deserializer, Serialize,
21};
22use serde_json::Value;
23use settings::{
24 add_references_to_properties, Settings, SettingsLocation, SettingsSources, SettingsStore,
25};
26use std::{borrow::Cow, num::NonZeroU32, path::Path, sync::Arc};
27use util::serde::default_true;
28
29/// Initializes the language settings.
30pub fn init(cx: &mut App) {
31 AllLanguageSettings::register(cx);
32}
33
34/// Returns the settings for the specified language from the provided file.
35pub fn language_settings<'a>(
36 language: Option<LanguageName>,
37 file: Option<&'a Arc<dyn File>>,
38 cx: &'a App,
39) -> Cow<'a, LanguageSettings> {
40 let location = file.map(|f| SettingsLocation {
41 worktree_id: f.worktree_id(cx),
42 path: f.path().as_ref(),
43 });
44 AllLanguageSettings::get(location, cx).language(location, language.as_ref(), cx)
45}
46
47/// Returns the settings for all languages from the provided file.
48pub fn all_language_settings<'a>(
49 file: Option<&'a Arc<dyn File>>,
50 cx: &'a App,
51) -> &'a AllLanguageSettings {
52 let location = file.map(|f| SettingsLocation {
53 worktree_id: f.worktree_id(cx),
54 path: f.path().as_ref(),
55 });
56 AllLanguageSettings::get(location, cx)
57}
58
59/// The settings for all languages.
60#[derive(Debug, Clone)]
61pub struct AllLanguageSettings {
62 /// The edit prediction settings.
63 pub edit_predictions: EditPredictionSettings,
64 defaults: LanguageSettings,
65 languages: HashMap<LanguageName, LanguageSettings>,
66 pub(crate) file_types: HashMap<Arc<str>, GlobSet>,
67}
68
69/// The settings for a particular language.
70#[derive(Debug, Clone, Deserialize)]
71pub struct LanguageSettings {
72 /// How many columns a tab should occupy.
73 pub tab_size: NonZeroU32,
74 /// Whether to indent lines using tab characters, as opposed to multiple
75 /// spaces.
76 pub hard_tabs: bool,
77 /// How to soft-wrap long lines of text.
78 pub soft_wrap: SoftWrap,
79 /// The column at which to soft-wrap lines, for buffers where soft-wrap
80 /// is enabled.
81 pub preferred_line_length: u32,
82 // Whether to show wrap guides (vertical rulers) in the editor.
83 // Setting this to true will show a guide at the 'preferred_line_length' value
84 // if softwrap is set to 'preferred_line_length', and will show any
85 // additional guides as specified by the 'wrap_guides' setting.
86 pub show_wrap_guides: bool,
87 /// Character counts at which to show wrap guides (vertical rulers) in the editor.
88 pub wrap_guides: Vec<usize>,
89 /// Indent guide related settings.
90 pub indent_guides: IndentGuideSettings,
91 /// Whether or not to perform a buffer format before saving.
92 pub format_on_save: FormatOnSave,
93 /// Whether or not to remove any trailing whitespace from lines of a buffer
94 /// before saving it.
95 pub remove_trailing_whitespace_on_save: bool,
96 /// Whether or not to ensure there's a single newline at the end of a buffer
97 /// when saving it.
98 pub ensure_final_newline_on_save: bool,
99 /// How to perform a buffer format.
100 pub formatter: SelectedFormatter,
101 /// Zed's Prettier integration settings.
102 pub prettier: PrettierSettings,
103 /// Whether to use language servers to provide code intelligence.
104 pub enable_language_server: bool,
105 /// The list of language servers to use (or disable) for this language.
106 ///
107 /// This array should consist of language server IDs, as well as the following
108 /// special tokens:
109 /// - `"!<language_server_id>"` - A language server ID prefixed with a `!` will be disabled.
110 /// - `"..."` - A placeholder to refer to the **rest** of the registered language servers for this language.
111 pub language_servers: Vec<String>,
112 /// Controls whether edit predictions are shown immediately (true)
113 /// or manually by triggering `editor::ShowEditPrediction` (false).
114 pub show_edit_predictions: bool,
115 /// Controls whether edit predictions are shown in the given language
116 /// scopes.
117 pub edit_predictions_disabled_in: Vec<String>,
118 /// Whether to show tabs and spaces in the editor.
119 pub show_whitespaces: ShowWhitespaceSetting,
120 /// Whether to start a new line with a comment when a previous line is a comment as well.
121 pub extend_comment_on_newline: bool,
122 /// Inlay hint related settings.
123 pub inlay_hints: InlayHintSettings,
124 /// Whether to automatically close brackets.
125 pub use_autoclose: bool,
126 /// Whether to automatically surround text with brackets.
127 pub use_auto_surround: bool,
128 /// Whether to use additional LSP queries to format (and amend) the code after
129 /// every "trigger" symbol input, defined by LSP server capabilities.
130 pub use_on_type_format: bool,
131 /// Whether indentation of pasted content should be adjusted based on the context.
132 pub auto_indent_on_paste: bool,
133 // Controls how the editor handles the autoclosed characters.
134 pub always_treat_brackets_as_autoclosed: bool,
135 /// Which code actions to run on save
136 pub code_actions_on_format: HashMap<String, bool>,
137 /// Whether to perform linked edits
138 pub linked_edits: bool,
139 /// Task configuration for this language.
140 pub tasks: LanguageTaskConfig,
141 /// Whether to pop the completions menu while typing in an editor without
142 /// explicitly requesting it.
143 pub show_completions_on_input: bool,
144 /// Whether to display inline and alongside documentation for items in the
145 /// completions menu.
146 pub show_completion_documentation: bool,
147}
148
149impl LanguageSettings {
150 /// A token representing the rest of the available language servers.
151 const REST_OF_LANGUAGE_SERVERS: &'static str = "...";
152
153 /// Returns the customized list of language servers from the list of
154 /// available language servers.
155 pub fn customized_language_servers(
156 &self,
157 available_language_servers: &[LanguageServerName],
158 ) -> Vec<LanguageServerName> {
159 Self::resolve_language_servers(&self.language_servers, available_language_servers)
160 }
161
162 pub(crate) fn resolve_language_servers(
163 configured_language_servers: &[String],
164 available_language_servers: &[LanguageServerName],
165 ) -> Vec<LanguageServerName> {
166 let (disabled_language_servers, enabled_language_servers): (
167 Vec<LanguageServerName>,
168 Vec<LanguageServerName>,
169 ) = configured_language_servers.iter().partition_map(
170 |language_server| match language_server.strip_prefix('!') {
171 Some(disabled) => Either::Left(LanguageServerName(disabled.to_string().into())),
172 None => Either::Right(LanguageServerName(language_server.clone().into())),
173 },
174 );
175
176 let rest = available_language_servers
177 .iter()
178 .filter(|&available_language_server| {
179 !disabled_language_servers.contains(&available_language_server)
180 && !enabled_language_servers.contains(&available_language_server)
181 })
182 .cloned()
183 .collect::<Vec<_>>();
184
185 enabled_language_servers
186 .into_iter()
187 .flat_map(|language_server| {
188 if language_server.0.as_ref() == Self::REST_OF_LANGUAGE_SERVERS {
189 rest.clone()
190 } else {
191 vec![language_server.clone()]
192 }
193 })
194 .collect::<Vec<_>>()
195 }
196}
197
198/// The provider that supplies edit predictions.
199#[derive(Copy, Clone, Debug, Default, Eq, PartialEq, Serialize, Deserialize, JsonSchema)]
200#[serde(rename_all = "snake_case")]
201pub enum EditPredictionProvider {
202 None,
203 #[default]
204 Copilot,
205 Supermaven,
206 Zed,
207}
208
209impl EditPredictionProvider {
210 pub fn is_zed(&self) -> bool {
211 match self {
212 EditPredictionProvider::Zed => true,
213 EditPredictionProvider::None
214 | EditPredictionProvider::Copilot
215 | EditPredictionProvider::Supermaven => false,
216 }
217 }
218}
219
220/// The settings for edit predictions, such as [GitHub Copilot](https://github.com/features/copilot)
221/// or [Supermaven](https://supermaven.com).
222#[derive(Clone, Debug, Default)]
223pub struct EditPredictionSettings {
224 /// The provider that supplies edit predictions.
225 pub provider: EditPredictionProvider,
226 /// A list of globs representing files that edit predictions should be disabled for.
227 /// This list adds to a pre-existing, sensible default set of globs.
228 /// Any additional ones you add are combined with them.
229 pub disabled_globs: Vec<GlobMatcher>,
230 /// When to show edit predictions previews in buffer.
231 pub inline_preview: InlineCompletionPreviewMode,
232}
233
234/// The mode in which edit predictions should be displayed.
235#[derive(Copy, Clone, Debug, Default, Eq, PartialEq, Serialize, Deserialize, JsonSchema)]
236#[serde(rename_all = "snake_case")]
237pub enum InlineCompletionPreviewMode {
238 /// Display inline when there are no language server completions available.
239 #[default]
240 Auto,
241 /// Display inline when holding modifier key (alt by default).
242 WhenHoldingModifier,
243}
244
245/// The settings for all languages.
246#[derive(Debug, Clone, Default, PartialEq, Serialize, Deserialize, JsonSchema)]
247pub struct AllLanguageSettingsContent {
248 /// The settings for enabling/disabling features.
249 #[serde(default)]
250 pub features: Option<FeaturesContent>,
251 /// The edit prediction settings.
252 #[serde(default)]
253 pub edit_predictions: Option<InlineCompletionSettingsContent>,
254 /// The default language settings.
255 #[serde(flatten)]
256 pub defaults: LanguageSettingsContent,
257 /// The settings for individual languages.
258 #[serde(default)]
259 pub languages: HashMap<LanguageName, LanguageSettingsContent>,
260 /// Settings for associating file extensions and filenames
261 /// with languages.
262 #[serde(default)]
263 pub file_types: HashMap<Arc<str>, Vec<String>>,
264}
265
266/// The settings for a particular language.
267#[derive(Debug, Clone, Default, PartialEq, Serialize, Deserialize, JsonSchema)]
268pub struct LanguageSettingsContent {
269 /// How many columns a tab should occupy.
270 ///
271 /// Default: 4
272 #[serde(default)]
273 pub tab_size: Option<NonZeroU32>,
274 /// Whether to indent lines using tab characters, as opposed to multiple
275 /// spaces.
276 ///
277 /// Default: false
278 #[serde(default)]
279 pub hard_tabs: Option<bool>,
280 /// How to soft-wrap long lines of text.
281 ///
282 /// Default: none
283 #[serde(default)]
284 pub soft_wrap: Option<SoftWrap>,
285 /// The column at which to soft-wrap lines, for buffers where soft-wrap
286 /// is enabled.
287 ///
288 /// Default: 80
289 #[serde(default)]
290 pub preferred_line_length: Option<u32>,
291 /// Whether to show wrap guides in the editor. Setting this to true will
292 /// show a guide at the 'preferred_line_length' value if softwrap is set to
293 /// 'preferred_line_length', and will show any additional guides as specified
294 /// by the 'wrap_guides' setting.
295 ///
296 /// Default: true
297 #[serde(default)]
298 pub show_wrap_guides: Option<bool>,
299 /// Character counts at which to show wrap guides in the editor.
300 ///
301 /// Default: []
302 #[serde(default)]
303 pub wrap_guides: Option<Vec<usize>>,
304 /// Indent guide related settings.
305 #[serde(default)]
306 pub indent_guides: Option<IndentGuideSettings>,
307 /// Whether or not to perform a buffer format before saving.
308 ///
309 /// Default: on
310 #[serde(default)]
311 pub format_on_save: Option<FormatOnSave>,
312 /// Whether or not to remove any trailing whitespace from lines of a buffer
313 /// before saving it.
314 ///
315 /// Default: true
316 #[serde(default)]
317 pub remove_trailing_whitespace_on_save: Option<bool>,
318 /// Whether or not to ensure there's a single newline at the end of a buffer
319 /// when saving it.
320 ///
321 /// Default: true
322 #[serde(default)]
323 pub ensure_final_newline_on_save: Option<bool>,
324 /// How to perform a buffer format.
325 ///
326 /// Default: auto
327 #[serde(default)]
328 pub formatter: Option<SelectedFormatter>,
329 /// Zed's Prettier integration settings.
330 /// Allows to enable/disable formatting with Prettier
331 /// and configure default Prettier, used when no project-level Prettier installation is found.
332 ///
333 /// Default: off
334 #[serde(default)]
335 pub prettier: Option<PrettierSettings>,
336 /// Whether to use language servers to provide code intelligence.
337 ///
338 /// Default: true
339 #[serde(default)]
340 pub enable_language_server: Option<bool>,
341 /// The list of language servers to use (or disable) for this language.
342 ///
343 /// This array should consist of language server IDs, as well as the following
344 /// special tokens:
345 /// - `"!<language_server_id>"` - A language server ID prefixed with a `!` will be disabled.
346 /// - `"..."` - A placeholder to refer to the **rest** of the registered language servers for this language.
347 ///
348 /// Default: ["..."]
349 #[serde(default)]
350 pub language_servers: Option<Vec<String>>,
351 /// Controls whether edit predictions are shown immediately (true)
352 /// or manually by triggering `editor::ShowEditPrediction` (false).
353 ///
354 /// Default: true
355 #[serde(default)]
356 pub show_edit_predictions: Option<bool>,
357 /// Controls whether edit predictions are shown in the given language
358 /// scopes.
359 ///
360 /// Example: ["string", "comment"]
361 ///
362 /// Default: []
363 #[serde(default)]
364 pub edit_predictions_disabled_in: Option<Vec<String>>,
365 /// Whether to show tabs and spaces in the editor.
366 #[serde(default)]
367 pub show_whitespaces: Option<ShowWhitespaceSetting>,
368 /// Whether to start a new line with a comment when a previous line is a comment as well.
369 ///
370 /// Default: true
371 #[serde(default)]
372 pub extend_comment_on_newline: Option<bool>,
373 /// Inlay hint related settings.
374 #[serde(default)]
375 pub inlay_hints: Option<InlayHintSettings>,
376 /// Whether to automatically type closing characters for you. For example,
377 /// when you type (, Zed will automatically add a closing ) at the correct position.
378 ///
379 /// Default: true
380 pub use_autoclose: Option<bool>,
381 /// Whether to automatically surround text with characters for you. For example,
382 /// when you select text and type (, Zed will automatically surround text with ().
383 ///
384 /// Default: true
385 pub use_auto_surround: Option<bool>,
386 /// Controls how the editor handles the autoclosed characters.
387 /// When set to `false`(default), skipping over and auto-removing of the closing characters
388 /// happen only for auto-inserted characters.
389 /// Otherwise(when `true`), the closing characters are always skipped over and auto-removed
390 /// no matter how they were inserted.
391 ///
392 /// Default: false
393 pub always_treat_brackets_as_autoclosed: Option<bool>,
394 /// Whether to use additional LSP queries to format (and amend) the code after
395 /// every "trigger" symbol input, defined by LSP server capabilities.
396 ///
397 /// Default: true
398 pub use_on_type_format: Option<bool>,
399 /// Which code actions to run on save after the formatter.
400 /// These are not run if formatting is off.
401 ///
402 /// Default: {} (or {"source.organizeImports": true} for Go).
403 pub code_actions_on_format: Option<HashMap<String, bool>>,
404 /// Whether to perform linked edits of associated ranges, if the language server supports it.
405 /// For example, when editing opening <html> tag, the contents of the closing </html> tag will be edited as well.
406 ///
407 /// Default: true
408 pub linked_edits: Option<bool>,
409 /// Whether indentation of pasted content should be adjusted based on the context.
410 ///
411 /// Default: true
412 pub auto_indent_on_paste: Option<bool>,
413 /// Task configuration for this language.
414 ///
415 /// Default: {}
416 pub tasks: Option<LanguageTaskConfig>,
417 /// Whether to pop the completions menu while typing in an editor without
418 /// explicitly requesting it.
419 ///
420 /// Default: true
421 pub show_completions_on_input: Option<bool>,
422 /// Whether to display inline and alongside documentation for items in the
423 /// completions menu.
424 ///
425 /// Default: true
426 pub show_completion_documentation: Option<bool>,
427}
428
429/// The contents of the edit prediction settings.
430#[derive(Clone, Debug, Default, Serialize, Deserialize, JsonSchema, PartialEq)]
431pub struct InlineCompletionSettingsContent {
432 /// A list of globs representing files that edit predictions should be disabled for.
433 /// This list adds to a pre-existing, sensible default set of globs.
434 /// Any additional ones you add are combined with them.
435 #[serde(default)]
436 pub disabled_globs: Option<Vec<String>>,
437 /// When to show edit predictions previews in buffer.
438 #[serde(default)]
439 pub inline_preview: InlineCompletionPreviewMode,
440}
441
442/// The settings for enabling/disabling features.
443#[derive(Debug, Clone, PartialEq, Default, Serialize, Deserialize, JsonSchema)]
444#[serde(rename_all = "snake_case")]
445pub struct FeaturesContent {
446 /// Whether the GitHub Copilot feature is enabled.
447 pub copilot: Option<bool>,
448 /// Determines which edit prediction provider to use.
449 pub edit_prediction_provider: Option<EditPredictionProvider>,
450}
451
452/// Controls the soft-wrapping behavior in the editor.
453#[derive(Copy, Clone, Debug, Serialize, Deserialize, PartialEq, Eq, JsonSchema)]
454#[serde(rename_all = "snake_case")]
455pub enum SoftWrap {
456 /// Prefer a single line generally, unless an overly long line is encountered.
457 None,
458 /// Deprecated: use None instead. Left to avoid breaking existing users' configs.
459 /// Prefer a single line generally, unless an overly long line is encountered.
460 PreferLine,
461 /// Soft wrap lines that exceed the editor width.
462 EditorWidth,
463 /// Soft wrap lines at the preferred line length.
464 PreferredLineLength,
465 /// Soft wrap line at the preferred line length or the editor width (whichever is smaller).
466 Bounded,
467}
468
469/// Controls the behavior of formatting files when they are saved.
470#[derive(Debug, Clone, PartialEq, Eq)]
471pub enum FormatOnSave {
472 /// Files should be formatted on save.
473 On,
474 /// Files should not be formatted on save.
475 Off,
476 List(FormatterList),
477}
478
479impl JsonSchema for FormatOnSave {
480 fn schema_name() -> String {
481 "OnSaveFormatter".into()
482 }
483
484 fn json_schema(generator: &mut schemars::r#gen::SchemaGenerator) -> Schema {
485 let mut schema = SchemaObject::default();
486 let formatter_schema = Formatter::json_schema(generator);
487 schema.instance_type = Some(
488 vec![
489 InstanceType::Object,
490 InstanceType::String,
491 InstanceType::Array,
492 ]
493 .into(),
494 );
495
496 let valid_raw_values = SchemaObject {
497 enum_values: Some(vec![
498 Value::String("on".into()),
499 Value::String("off".into()),
500 Value::String("prettier".into()),
501 Value::String("language_server".into()),
502 ]),
503 ..Default::default()
504 };
505 let mut nested_values = SchemaObject::default();
506
507 nested_values.array().items = Some(formatter_schema.clone().into());
508
509 schema.subschemas().any_of = Some(vec![
510 nested_values.into(),
511 valid_raw_values.into(),
512 formatter_schema,
513 ]);
514 schema.into()
515 }
516}
517
518impl Serialize for FormatOnSave {
519 fn serialize<S>(&self, serializer: S) -> std::result::Result<S::Ok, S::Error>
520 where
521 S: serde::Serializer,
522 {
523 match self {
524 Self::On => serializer.serialize_str("on"),
525 Self::Off => serializer.serialize_str("off"),
526 Self::List(list) => list.serialize(serializer),
527 }
528 }
529}
530
531impl<'de> Deserialize<'de> for FormatOnSave {
532 fn deserialize<D>(deserializer: D) -> std::result::Result<Self, D::Error>
533 where
534 D: Deserializer<'de>,
535 {
536 struct FormatDeserializer;
537
538 impl<'d> Visitor<'d> for FormatDeserializer {
539 type Value = FormatOnSave;
540
541 fn expecting(&self, formatter: &mut std::fmt::Formatter) -> std::fmt::Result {
542 formatter.write_str("a valid on-save formatter kind")
543 }
544 fn visit_str<E>(self, v: &str) -> std::result::Result<Self::Value, E>
545 where
546 E: serde::de::Error,
547 {
548 if v == "on" {
549 Ok(Self::Value::On)
550 } else if v == "off" {
551 Ok(Self::Value::Off)
552 } else if v == "language_server" {
553 Ok(Self::Value::List(FormatterList(
554 Formatter::LanguageServer { name: None }.into(),
555 )))
556 } else {
557 let ret: Result<FormatterList, _> =
558 Deserialize::deserialize(v.into_deserializer());
559 ret.map(Self::Value::List)
560 }
561 }
562 fn visit_map<A>(self, map: A) -> Result<Self::Value, A::Error>
563 where
564 A: MapAccess<'d>,
565 {
566 let ret: Result<FormatterList, _> =
567 Deserialize::deserialize(de::value::MapAccessDeserializer::new(map));
568 ret.map(Self::Value::List)
569 }
570 fn visit_seq<A>(self, map: A) -> Result<Self::Value, A::Error>
571 where
572 A: SeqAccess<'d>,
573 {
574 let ret: Result<FormatterList, _> =
575 Deserialize::deserialize(de::value::SeqAccessDeserializer::new(map));
576 ret.map(Self::Value::List)
577 }
578 }
579 deserializer.deserialize_any(FormatDeserializer)
580 }
581}
582
583/// Controls how whitespace should be displayedin the editor.
584#[derive(Copy, Clone, Debug, Serialize, Deserialize, PartialEq, Eq, JsonSchema)]
585#[serde(rename_all = "snake_case")]
586pub enum ShowWhitespaceSetting {
587 /// Draw whitespace only for the selected text.
588 Selection,
589 /// Do not draw any tabs or spaces.
590 None,
591 /// Draw all invisible symbols.
592 All,
593 /// Draw whitespaces at boundaries only.
594 ///
595 /// For a whitespace to be on a boundary, any of the following conditions need to be met:
596 /// - It is a tab
597 /// - It is adjacent to an edge (start or end)
598 /// - It is adjacent to a whitespace (left or right)
599 Boundary,
600}
601
602/// Controls which formatter should be used when formatting code.
603#[derive(Clone, Debug, Default, PartialEq, Eq)]
604pub enum SelectedFormatter {
605 /// Format files using Zed's Prettier integration (if applicable),
606 /// or falling back to formatting via language server.
607 #[default]
608 Auto,
609 List(FormatterList),
610}
611
612impl JsonSchema for SelectedFormatter {
613 fn schema_name() -> String {
614 "Formatter".into()
615 }
616
617 fn json_schema(generator: &mut schemars::r#gen::SchemaGenerator) -> Schema {
618 let mut schema = SchemaObject::default();
619 let formatter_schema = Formatter::json_schema(generator);
620 schema.instance_type = Some(
621 vec![
622 InstanceType::Object,
623 InstanceType::String,
624 InstanceType::Array,
625 ]
626 .into(),
627 );
628
629 let valid_raw_values = SchemaObject {
630 enum_values: Some(vec![
631 Value::String("auto".into()),
632 Value::String("prettier".into()),
633 Value::String("language_server".into()),
634 ]),
635 ..Default::default()
636 };
637
638 let mut nested_values = SchemaObject::default();
639
640 nested_values.array().items = Some(formatter_schema.clone().into());
641
642 schema.subschemas().any_of = Some(vec![
643 nested_values.into(),
644 valid_raw_values.into(),
645 formatter_schema,
646 ]);
647 schema.into()
648 }
649}
650
651impl Serialize for SelectedFormatter {
652 fn serialize<S>(&self, serializer: S) -> std::result::Result<S::Ok, S::Error>
653 where
654 S: serde::Serializer,
655 {
656 match self {
657 SelectedFormatter::Auto => serializer.serialize_str("auto"),
658 SelectedFormatter::List(list) => list.serialize(serializer),
659 }
660 }
661}
662impl<'de> Deserialize<'de> for SelectedFormatter {
663 fn deserialize<D>(deserializer: D) -> std::result::Result<Self, D::Error>
664 where
665 D: Deserializer<'de>,
666 {
667 struct FormatDeserializer;
668
669 impl<'d> Visitor<'d> for FormatDeserializer {
670 type Value = SelectedFormatter;
671
672 fn expecting(&self, formatter: &mut std::fmt::Formatter) -> std::fmt::Result {
673 formatter.write_str("a valid formatter kind")
674 }
675 fn visit_str<E>(self, v: &str) -> std::result::Result<Self::Value, E>
676 where
677 E: serde::de::Error,
678 {
679 if v == "auto" {
680 Ok(Self::Value::Auto)
681 } else if v == "language_server" {
682 Ok(Self::Value::List(FormatterList(
683 Formatter::LanguageServer { name: None }.into(),
684 )))
685 } else {
686 let ret: Result<FormatterList, _> =
687 Deserialize::deserialize(v.into_deserializer());
688 ret.map(SelectedFormatter::List)
689 }
690 }
691 fn visit_map<A>(self, map: A) -> Result<Self::Value, A::Error>
692 where
693 A: MapAccess<'d>,
694 {
695 let ret: Result<FormatterList, _> =
696 Deserialize::deserialize(de::value::MapAccessDeserializer::new(map));
697 ret.map(SelectedFormatter::List)
698 }
699 fn visit_seq<A>(self, map: A) -> Result<Self::Value, A::Error>
700 where
701 A: SeqAccess<'d>,
702 {
703 let ret: Result<FormatterList, _> =
704 Deserialize::deserialize(de::value::SeqAccessDeserializer::new(map));
705 ret.map(SelectedFormatter::List)
706 }
707 }
708 deserializer.deserialize_any(FormatDeserializer)
709 }
710}
711/// Controls which formatter should be used when formatting code.
712#[derive(Clone, Debug, Serialize, Deserialize, PartialEq, Eq, JsonSchema)]
713#[serde(rename_all = "snake_case", transparent)]
714pub struct FormatterList(pub SingleOrVec<Formatter>);
715
716impl AsRef<[Formatter]> for FormatterList {
717 fn as_ref(&self) -> &[Formatter] {
718 match &self.0 {
719 SingleOrVec::Single(single) => slice::from_ref(single),
720 SingleOrVec::Vec(v) => v,
721 }
722 }
723}
724
725/// Controls which formatter should be used when formatting code. If there are multiple formatters, they are executed in the order of declaration.
726#[derive(Clone, Debug, Serialize, Deserialize, PartialEq, Eq, JsonSchema)]
727#[serde(rename_all = "snake_case")]
728pub enum Formatter {
729 /// Format code using the current language server.
730 LanguageServer { name: Option<String> },
731 /// Format code using Zed's Prettier integration.
732 Prettier,
733 /// Format code using an external command.
734 External {
735 /// The external program to run.
736 command: Arc<str>,
737 /// The arguments to pass to the program.
738 arguments: Option<Arc<[String]>>,
739 },
740 /// Files should be formatted using code actions executed by language servers.
741 CodeActions(HashMap<String, bool>),
742}
743
744/// The settings for indent guides.
745#[derive(Default, Debug, Copy, Clone, PartialEq, Eq, Serialize, Deserialize, JsonSchema)]
746pub struct IndentGuideSettings {
747 /// Whether to display indent guides in the editor.
748 ///
749 /// Default: true
750 #[serde(default = "default_true")]
751 pub enabled: bool,
752 /// The width of the indent guides in pixels, between 1 and 10.
753 ///
754 /// Default: 1
755 #[serde(default = "line_width")]
756 pub line_width: u32,
757 /// The width of the active indent guide in pixels, between 1 and 10.
758 ///
759 /// Default: 1
760 #[serde(default = "active_line_width")]
761 pub active_line_width: u32,
762 /// Determines how indent guides are colored.
763 ///
764 /// Default: Fixed
765 #[serde(default)]
766 pub coloring: IndentGuideColoring,
767 /// Determines how indent guide backgrounds are colored.
768 ///
769 /// Default: Disabled
770 #[serde(default)]
771 pub background_coloring: IndentGuideBackgroundColoring,
772}
773
774fn line_width() -> u32 {
775 1
776}
777
778fn active_line_width() -> u32 {
779 line_width()
780}
781
782/// Determines how indent guides are colored.
783#[derive(Default, Debug, Copy, Clone, PartialEq, Eq, Serialize, Deserialize, JsonSchema)]
784#[serde(rename_all = "snake_case")]
785pub enum IndentGuideColoring {
786 /// Do not render any lines for indent guides.
787 Disabled,
788 /// Use the same color for all indentation levels.
789 #[default]
790 Fixed,
791 /// Use a different color for each indentation level.
792 IndentAware,
793}
794
795/// Determines how indent guide backgrounds are colored.
796#[derive(Default, Debug, Copy, Clone, PartialEq, Eq, Serialize, Deserialize, JsonSchema)]
797#[serde(rename_all = "snake_case")]
798pub enum IndentGuideBackgroundColoring {
799 /// Do not render any background for indent guides.
800 #[default]
801 Disabled,
802 /// Use a different color for each indentation level.
803 IndentAware,
804}
805
806/// The settings for inlay hints.
807#[derive(Copy, Clone, Debug, Serialize, Deserialize, JsonSchema, PartialEq, Eq)]
808pub struct InlayHintSettings {
809 /// Global switch to toggle hints on and off.
810 ///
811 /// Default: false
812 #[serde(default)]
813 pub enabled: bool,
814 /// Whether type hints should be shown.
815 ///
816 /// Default: true
817 #[serde(default = "default_true")]
818 pub show_type_hints: bool,
819 /// Whether parameter hints should be shown.
820 ///
821 /// Default: true
822 #[serde(default = "default_true")]
823 pub show_parameter_hints: bool,
824 /// Whether other hints should be shown.
825 ///
826 /// Default: true
827 #[serde(default = "default_true")]
828 pub show_other_hints: bool,
829 /// Whether to show a background for inlay hints.
830 ///
831 /// If set to `true`, the background will use the `hint.background` color
832 /// from the current theme.
833 ///
834 /// Default: false
835 #[serde(default)]
836 pub show_background: bool,
837 /// Whether or not to debounce inlay hints updates after buffer edits.
838 ///
839 /// Set to 0 to disable debouncing.
840 ///
841 /// Default: 700
842 #[serde(default = "edit_debounce_ms")]
843 pub edit_debounce_ms: u64,
844 /// Whether or not to debounce inlay hints updates after buffer scrolls.
845 ///
846 /// Set to 0 to disable debouncing.
847 ///
848 /// Default: 50
849 #[serde(default = "scroll_debounce_ms")]
850 pub scroll_debounce_ms: u64,
851}
852
853fn edit_debounce_ms() -> u64 {
854 700
855}
856
857fn scroll_debounce_ms() -> u64 {
858 50
859}
860
861/// The task settings for a particular language.
862#[derive(Debug, Clone, Deserialize, PartialEq, Serialize, JsonSchema)]
863pub struct LanguageTaskConfig {
864 /// Extra task variables to set for a particular language.
865 pub variables: HashMap<String, String>,
866}
867
868impl InlayHintSettings {
869 /// Returns the kinds of inlay hints that are enabled based on the settings.
870 pub fn enabled_inlay_hint_kinds(&self) -> HashSet<Option<InlayHintKind>> {
871 let mut kinds = HashSet::default();
872 if self.show_type_hints {
873 kinds.insert(Some(InlayHintKind::Type));
874 }
875 if self.show_parameter_hints {
876 kinds.insert(Some(InlayHintKind::Parameter));
877 }
878 if self.show_other_hints {
879 kinds.insert(None);
880 }
881 kinds
882 }
883}
884
885impl AllLanguageSettings {
886 /// Returns the [`LanguageSettings`] for the language with the specified name.
887 pub fn language<'a>(
888 &'a self,
889 location: Option<SettingsLocation<'a>>,
890 language_name: Option<&LanguageName>,
891 cx: &'a App,
892 ) -> Cow<'a, LanguageSettings> {
893 let settings = language_name
894 .and_then(|name| self.languages.get(name))
895 .unwrap_or(&self.defaults);
896
897 let editorconfig_properties = location.and_then(|location| {
898 cx.global::<SettingsStore>()
899 .editorconfig_properties(location.worktree_id, location.path)
900 });
901 if let Some(editorconfig_properties) = editorconfig_properties {
902 let mut settings = settings.clone();
903 merge_with_editorconfig(&mut settings, &editorconfig_properties);
904 Cow::Owned(settings)
905 } else {
906 Cow::Borrowed(settings)
907 }
908 }
909
910 /// Returns whether edit predictions are enabled for the given path.
911 pub fn inline_completions_enabled_for_path(&self, path: &Path) -> bool {
912 !self
913 .edit_predictions
914 .disabled_globs
915 .iter()
916 .any(|glob| glob.is_match(path))
917 }
918
919 /// Returns whether edit predictions are enabled for the given language and path.
920 pub fn show_inline_completions(&self, language: Option<&Arc<Language>>, cx: &App) -> bool {
921 self.language(None, language.map(|l| l.name()).as_ref(), cx)
922 .show_edit_predictions
923 }
924
925 /// Returns the edit predictions preview mode for the given language and path.
926 pub fn inline_completions_preview_mode(&self) -> InlineCompletionPreviewMode {
927 self.edit_predictions.inline_preview
928 }
929}
930
931fn merge_with_editorconfig(settings: &mut LanguageSettings, cfg: &EditorconfigProperties) {
932 let tab_size = cfg.get::<IndentSize>().ok().and_then(|v| match v {
933 IndentSize::Value(u) => NonZeroU32::new(u as u32),
934 IndentSize::UseTabWidth => cfg.get::<TabWidth>().ok().and_then(|w| match w {
935 TabWidth::Value(u) => NonZeroU32::new(u as u32),
936 }),
937 });
938 let hard_tabs = cfg
939 .get::<IndentStyle>()
940 .map(|v| v.eq(&IndentStyle::Tabs))
941 .ok();
942 let ensure_final_newline_on_save = cfg
943 .get::<FinalNewline>()
944 .map(|v| match v {
945 FinalNewline::Value(b) => b,
946 })
947 .ok();
948 let remove_trailing_whitespace_on_save = cfg
949 .get::<TrimTrailingWs>()
950 .map(|v| match v {
951 TrimTrailingWs::Value(b) => b,
952 })
953 .ok();
954 fn merge<T>(target: &mut T, value: Option<T>) {
955 if let Some(value) = value {
956 *target = value;
957 }
958 }
959 merge(&mut settings.tab_size, tab_size);
960 merge(&mut settings.hard_tabs, hard_tabs);
961 merge(
962 &mut settings.remove_trailing_whitespace_on_save,
963 remove_trailing_whitespace_on_save,
964 );
965 merge(
966 &mut settings.ensure_final_newline_on_save,
967 ensure_final_newline_on_save,
968 );
969}
970
971/// The kind of an inlay hint.
972#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
973pub enum InlayHintKind {
974 /// An inlay hint for a type.
975 Type,
976 /// An inlay hint for a parameter.
977 Parameter,
978}
979
980impl InlayHintKind {
981 /// Returns the [`InlayHintKind`] from the given name.
982 ///
983 /// Returns `None` if `name` does not match any of the expected
984 /// string representations.
985 pub fn from_name(name: &str) -> Option<Self> {
986 match name {
987 "type" => Some(InlayHintKind::Type),
988 "parameter" => Some(InlayHintKind::Parameter),
989 _ => None,
990 }
991 }
992
993 /// Returns the name of this [`InlayHintKind`].
994 pub fn name(&self) -> &'static str {
995 match self {
996 InlayHintKind::Type => "type",
997 InlayHintKind::Parameter => "parameter",
998 }
999 }
1000}
1001
1002impl settings::Settings for AllLanguageSettings {
1003 const KEY: Option<&'static str> = None;
1004
1005 type FileContent = AllLanguageSettingsContent;
1006
1007 fn load(sources: SettingsSources<Self::FileContent>, _: &mut App) -> Result<Self> {
1008 let default_value = sources.default;
1009
1010 // A default is provided for all settings.
1011 let mut defaults: LanguageSettings =
1012 serde_json::from_value(serde_json::to_value(&default_value.defaults)?)?;
1013
1014 let mut languages = HashMap::default();
1015 for (language_name, settings) in &default_value.languages {
1016 let mut language_settings = defaults.clone();
1017 merge_settings(&mut language_settings, settings);
1018 languages.insert(language_name.clone(), language_settings);
1019 }
1020
1021 let mut copilot_enabled = default_value.features.as_ref().and_then(|f| f.copilot);
1022 let mut edit_prediction_provider = default_value
1023 .features
1024 .as_ref()
1025 .and_then(|f| f.edit_prediction_provider);
1026 let mut inline_completions_preview = default_value
1027 .edit_predictions
1028 .as_ref()
1029 .map(|inline_completions| inline_completions.inline_preview)
1030 .ok_or_else(Self::missing_default)?;
1031
1032 let mut completion_globs: HashSet<&String> = default_value
1033 .edit_predictions
1034 .as_ref()
1035 .and_then(|c| c.disabled_globs.as_ref())
1036 .map(|globs| globs.iter().collect())
1037 .ok_or_else(Self::missing_default)?;
1038
1039 let mut file_types: HashMap<Arc<str>, GlobSet> = HashMap::default();
1040
1041 for (language, suffixes) in &default_value.file_types {
1042 let mut builder = GlobSetBuilder::new();
1043
1044 for suffix in suffixes {
1045 builder.add(Glob::new(suffix)?);
1046 }
1047
1048 file_types.insert(language.clone(), builder.build()?);
1049 }
1050
1051 for user_settings in sources.customizations() {
1052 if let Some(copilot) = user_settings.features.as_ref().and_then(|f| f.copilot) {
1053 copilot_enabled = Some(copilot);
1054 }
1055 if let Some(provider) = user_settings
1056 .features
1057 .as_ref()
1058 .and_then(|f| f.edit_prediction_provider)
1059 {
1060 edit_prediction_provider = Some(provider);
1061 }
1062
1063 if let Some(inline_completions) = user_settings.edit_predictions.as_ref() {
1064 inline_completions_preview = inline_completions.inline_preview;
1065
1066 if let Some(disabled_globs) = inline_completions.disabled_globs.as_ref() {
1067 completion_globs.extend(disabled_globs.iter());
1068 }
1069 }
1070
1071 // A user's global settings override the default global settings and
1072 // all default language-specific settings.
1073 merge_settings(&mut defaults, &user_settings.defaults);
1074 for language_settings in languages.values_mut() {
1075 merge_settings(language_settings, &user_settings.defaults);
1076 }
1077
1078 // A user's language-specific settings override default language-specific settings.
1079 for (language_name, user_language_settings) in &user_settings.languages {
1080 merge_settings(
1081 languages
1082 .entry(language_name.clone())
1083 .or_insert_with(|| defaults.clone()),
1084 user_language_settings,
1085 );
1086 }
1087
1088 for (language, suffixes) in &user_settings.file_types {
1089 let mut builder = GlobSetBuilder::new();
1090
1091 let default_value = default_value.file_types.get(&language.clone());
1092
1093 // Merge the default value with the user's value.
1094 if let Some(suffixes) = default_value {
1095 for suffix in suffixes {
1096 builder.add(Glob::new(suffix)?);
1097 }
1098 }
1099
1100 for suffix in suffixes {
1101 builder.add(Glob::new(suffix)?);
1102 }
1103
1104 file_types.insert(language.clone(), builder.build()?);
1105 }
1106 }
1107
1108 Ok(Self {
1109 edit_predictions: EditPredictionSettings {
1110 provider: if let Some(provider) = edit_prediction_provider {
1111 provider
1112 } else if copilot_enabled.unwrap_or(true) {
1113 EditPredictionProvider::Copilot
1114 } else {
1115 EditPredictionProvider::None
1116 },
1117 disabled_globs: completion_globs
1118 .iter()
1119 .filter_map(|g| Some(globset::Glob::new(g).ok()?.compile_matcher()))
1120 .collect(),
1121 inline_preview: inline_completions_preview,
1122 },
1123 defaults,
1124 languages,
1125 file_types,
1126 })
1127 }
1128
1129 fn json_schema(
1130 generator: &mut schemars::gen::SchemaGenerator,
1131 params: &settings::SettingsJsonSchemaParams,
1132 _: &App,
1133 ) -> schemars::schema::RootSchema {
1134 let mut root_schema = generator.root_schema_for::<Self::FileContent>();
1135
1136 // Create a schema for a 'languages overrides' object, associating editor
1137 // settings with specific languages.
1138 assert!(root_schema
1139 .definitions
1140 .contains_key("LanguageSettingsContent"));
1141
1142 let languages_object_schema = SchemaObject {
1143 instance_type: Some(InstanceType::Object.into()),
1144 object: Some(Box::new(ObjectValidation {
1145 properties: params
1146 .language_names
1147 .iter()
1148 .map(|name| {
1149 (
1150 name.clone(),
1151 Schema::new_ref("#/definitions/LanguageSettingsContent".into()),
1152 )
1153 })
1154 .collect(),
1155 ..Default::default()
1156 })),
1157 ..Default::default()
1158 };
1159
1160 root_schema
1161 .definitions
1162 .extend([("Languages".into(), languages_object_schema.into())]);
1163
1164 add_references_to_properties(
1165 &mut root_schema,
1166 &[("languages", "#/definitions/Languages")],
1167 );
1168
1169 root_schema
1170 }
1171}
1172
1173fn merge_settings(settings: &mut LanguageSettings, src: &LanguageSettingsContent) {
1174 fn merge<T>(target: &mut T, value: Option<T>) {
1175 if let Some(value) = value {
1176 *target = value;
1177 }
1178 }
1179
1180 merge(&mut settings.tab_size, src.tab_size);
1181 settings.tab_size = settings
1182 .tab_size
1183 .clamp(NonZeroU32::new(1).unwrap(), NonZeroU32::new(16).unwrap());
1184
1185 merge(&mut settings.hard_tabs, src.hard_tabs);
1186 merge(&mut settings.soft_wrap, src.soft_wrap);
1187 merge(&mut settings.use_autoclose, src.use_autoclose);
1188 merge(&mut settings.use_auto_surround, src.use_auto_surround);
1189 merge(&mut settings.use_on_type_format, src.use_on_type_format);
1190 merge(&mut settings.auto_indent_on_paste, src.auto_indent_on_paste);
1191 merge(
1192 &mut settings.always_treat_brackets_as_autoclosed,
1193 src.always_treat_brackets_as_autoclosed,
1194 );
1195 merge(&mut settings.show_wrap_guides, src.show_wrap_guides);
1196 merge(&mut settings.wrap_guides, src.wrap_guides.clone());
1197 merge(&mut settings.indent_guides, src.indent_guides);
1198 merge(
1199 &mut settings.code_actions_on_format,
1200 src.code_actions_on_format.clone(),
1201 );
1202 merge(&mut settings.linked_edits, src.linked_edits);
1203 merge(&mut settings.tasks, src.tasks.clone());
1204
1205 merge(
1206 &mut settings.preferred_line_length,
1207 src.preferred_line_length,
1208 );
1209 merge(&mut settings.formatter, src.formatter.clone());
1210 merge(&mut settings.prettier, src.prettier.clone());
1211 merge(&mut settings.format_on_save, src.format_on_save.clone());
1212 merge(
1213 &mut settings.remove_trailing_whitespace_on_save,
1214 src.remove_trailing_whitespace_on_save,
1215 );
1216 merge(
1217 &mut settings.ensure_final_newline_on_save,
1218 src.ensure_final_newline_on_save,
1219 );
1220 merge(
1221 &mut settings.enable_language_server,
1222 src.enable_language_server,
1223 );
1224 merge(&mut settings.language_servers, src.language_servers.clone());
1225 merge(
1226 &mut settings.show_edit_predictions,
1227 src.show_edit_predictions,
1228 );
1229 merge(
1230 &mut settings.edit_predictions_disabled_in,
1231 src.edit_predictions_disabled_in.clone(),
1232 );
1233 merge(&mut settings.show_whitespaces, src.show_whitespaces);
1234 merge(
1235 &mut settings.extend_comment_on_newline,
1236 src.extend_comment_on_newline,
1237 );
1238 merge(&mut settings.inlay_hints, src.inlay_hints);
1239 merge(
1240 &mut settings.show_completions_on_input,
1241 src.show_completions_on_input,
1242 );
1243 merge(
1244 &mut settings.show_completion_documentation,
1245 src.show_completion_documentation,
1246 );
1247}
1248
1249/// Allows to enable/disable formatting with Prettier
1250/// and configure default Prettier, used when no project-level Prettier installation is found.
1251/// Prettier formatting is disabled by default.
1252#[derive(Default, Debug, Clone, PartialEq, Eq, Serialize, Deserialize, JsonSchema)]
1253pub struct PrettierSettings {
1254 /// Enables or disables formatting with Prettier for a given language.
1255 #[serde(default)]
1256 pub allowed: bool,
1257
1258 /// Forces Prettier integration to use a specific parser name when formatting files with the language.
1259 #[serde(default)]
1260 pub parser: Option<String>,
1261
1262 /// Forces Prettier integration to use specific plugins when formatting files with the language.
1263 /// The default Prettier will be installed with these plugins.
1264 #[serde(default)]
1265 pub plugins: HashSet<String>,
1266
1267 /// Default Prettier options, in the format as in package.json section for Prettier.
1268 /// If project installs Prettier via its package.json, these options will be ignored.
1269 #[serde(flatten)]
1270 pub options: HashMap<String, serde_json::Value>,
1271}
1272
1273#[cfg(test)]
1274mod tests {
1275 use super::*;
1276
1277 #[test]
1278 fn test_formatter_deserialization() {
1279 let raw_auto = "{\"formatter\": \"auto\"}";
1280 let settings: LanguageSettingsContent = serde_json::from_str(raw_auto).unwrap();
1281 assert_eq!(settings.formatter, Some(SelectedFormatter::Auto));
1282 let raw = "{\"formatter\": \"language_server\"}";
1283 let settings: LanguageSettingsContent = serde_json::from_str(raw).unwrap();
1284 assert_eq!(
1285 settings.formatter,
1286 Some(SelectedFormatter::List(FormatterList(
1287 Formatter::LanguageServer { name: None }.into()
1288 )))
1289 );
1290 let raw = "{\"formatter\": [{\"language_server\": {\"name\": null}}]}";
1291 let settings: LanguageSettingsContent = serde_json::from_str(raw).unwrap();
1292 assert_eq!(
1293 settings.formatter,
1294 Some(SelectedFormatter::List(FormatterList(
1295 vec![Formatter::LanguageServer { name: None }].into()
1296 )))
1297 );
1298 let raw = "{\"formatter\": [{\"language_server\": {\"name\": null}}, \"prettier\"]}";
1299 let settings: LanguageSettingsContent = serde_json::from_str(raw).unwrap();
1300 assert_eq!(
1301 settings.formatter,
1302 Some(SelectedFormatter::List(FormatterList(
1303 vec![
1304 Formatter::LanguageServer { name: None },
1305 Formatter::Prettier
1306 ]
1307 .into()
1308 )))
1309 );
1310 }
1311
1312 #[test]
1313 fn test_formatter_deserialization_invalid() {
1314 let raw_auto = "{\"formatter\": {}}";
1315 let result: Result<LanguageSettingsContent, _> = serde_json::from_str(raw_auto);
1316 assert!(result.is_err());
1317 }
1318
1319 #[test]
1320 pub fn test_resolve_language_servers() {
1321 fn language_server_names(names: &[&str]) -> Vec<LanguageServerName> {
1322 names
1323 .iter()
1324 .copied()
1325 .map(|name| LanguageServerName(name.to_string().into()))
1326 .collect::<Vec<_>>()
1327 }
1328
1329 let available_language_servers = language_server_names(&[
1330 "typescript-language-server",
1331 "biome",
1332 "deno",
1333 "eslint",
1334 "tailwind",
1335 ]);
1336
1337 // A value of just `["..."]` is the same as taking all of the available language servers.
1338 assert_eq!(
1339 LanguageSettings::resolve_language_servers(
1340 &[LanguageSettings::REST_OF_LANGUAGE_SERVERS.into()],
1341 &available_language_servers,
1342 ),
1343 available_language_servers
1344 );
1345
1346 // Referencing one of the available language servers will change its order.
1347 assert_eq!(
1348 LanguageSettings::resolve_language_servers(
1349 &[
1350 "biome".into(),
1351 LanguageSettings::REST_OF_LANGUAGE_SERVERS.into(),
1352 "deno".into()
1353 ],
1354 &available_language_servers
1355 ),
1356 language_server_names(&[
1357 "biome",
1358 "typescript-language-server",
1359 "eslint",
1360 "tailwind",
1361 "deno",
1362 ])
1363 );
1364
1365 // Negating an available language server removes it from the list.
1366 assert_eq!(
1367 LanguageSettings::resolve_language_servers(
1368 &[
1369 "deno".into(),
1370 "!typescript-language-server".into(),
1371 "!biome".into(),
1372 LanguageSettings::REST_OF_LANGUAGE_SERVERS.into()
1373 ],
1374 &available_language_servers
1375 ),
1376 language_server_names(&["deno", "eslint", "tailwind"])
1377 );
1378
1379 // Adding a language server not in the list of available language servers adds it to the list.
1380 assert_eq!(
1381 LanguageSettings::resolve_language_servers(
1382 &[
1383 "my-cool-language-server".into(),
1384 LanguageSettings::REST_OF_LANGUAGE_SERVERS.into()
1385 ],
1386 &available_language_servers
1387 ),
1388 language_server_names(&[
1389 "my-cool-language-server",
1390 "typescript-language-server",
1391 "biome",
1392 "deno",
1393 "eslint",
1394 "tailwind",
1395 ])
1396 );
1397 }
1398}