1//! Provides `language`-related settings.
2
3use crate::{File, Language, LanguageServerName};
4use anyhow::Result;
5use collections::{HashMap, HashSet};
6use globset::GlobMatcher;
7use gpui::AppContext;
8use itertools::{Either, Itertools};
9use schemars::{
10 schema::{InstanceType, ObjectValidation, Schema, SchemaObject},
11 JsonSchema,
12};
13use serde::{Deserialize, Serialize};
14use settings::{Settings, SettingsLocation, SettingsSources};
15use std::{num::NonZeroU32, path::Path, sync::Arc};
16use util::serde::default_true;
17
18impl<'a> Into<SettingsLocation<'a>> for &'a dyn File {
19 fn into(self) -> SettingsLocation<'a> {
20 SettingsLocation {
21 worktree_id: self.worktree_id(),
22 path: self.path().as_ref(),
23 }
24 }
25}
26
27/// Initializes the language settings.
28pub fn init(cx: &mut AppContext) {
29 AllLanguageSettings::register(cx);
30}
31
32/// Returns the settings for the specified language from the provided file.
33pub fn language_settings<'a>(
34 language: Option<&Arc<Language>>,
35 file: Option<&Arc<dyn File>>,
36 cx: &'a AppContext,
37) -> &'a LanguageSettings {
38 let language_name = language.map(|l| l.name());
39 all_language_settings(file, cx).language(language_name.as_deref())
40}
41
42/// Returns the settings for all languages from the provided file.
43pub fn all_language_settings<'a>(
44 file: Option<&Arc<dyn File>>,
45 cx: &'a AppContext,
46) -> &'a AllLanguageSettings {
47 let location = file.map(|f| f.as_ref().into());
48 AllLanguageSettings::get(location, cx)
49}
50
51/// The settings for all languages.
52#[derive(Debug, Clone)]
53pub struct AllLanguageSettings {
54 /// The settings for GitHub Copilot.
55 pub copilot: CopilotSettings,
56 defaults: LanguageSettings,
57 languages: HashMap<Arc<str>, LanguageSettings>,
58 pub(crate) file_types: HashMap<Arc<str>, Vec<String>>,
59}
60
61/// The settings for a particular language.
62#[derive(Debug, Clone, Deserialize)]
63pub struct LanguageSettings {
64 /// How many columns a tab should occupy.
65 pub tab_size: NonZeroU32,
66 /// Whether to indent lines using tab characters, as opposed to multiple
67 /// spaces.
68 pub hard_tabs: bool,
69 /// How to soft-wrap long lines of text.
70 pub soft_wrap: SoftWrap,
71 /// The column at which to soft-wrap lines, for buffers where soft-wrap
72 /// is enabled.
73 pub preferred_line_length: u32,
74 /// Whether to show wrap guides in the editor. Setting this to true will
75 /// show a guide at the 'preferred_line_length' value if softwrap is set to
76 /// 'preferred_line_length', and will show any additional guides as specified
77 /// by the 'wrap_guides' setting.
78 pub show_wrap_guides: bool,
79 /// Character counts at which to show wrap guides in the editor.
80 pub wrap_guides: Vec<usize>,
81 /// Whether or not to perform a buffer format before saving.
82 pub format_on_save: FormatOnSave,
83 /// Whether or not to remove any trailing whitespace from lines of a buffer
84 /// before saving it.
85 pub remove_trailing_whitespace_on_save: bool,
86 /// Whether or not to ensure there's a single newline at the end of a buffer
87 /// when saving it.
88 pub ensure_final_newline_on_save: bool,
89 /// How to perform a buffer format.
90 pub formatter: Formatter,
91 /// Zed's Prettier integration settings.
92 /// If Prettier is enabled, Zed will use this for its Prettier instance for any applicable file, if
93 /// the project has no other Prettier installed.
94 pub prettier: HashMap<String, serde_json::Value>,
95 /// Whether to use language servers to provide code intelligence.
96 pub enable_language_server: bool,
97 /// The list of language servers to use (or disable) for this language.
98 ///
99 /// This array should consist of language server IDs, as well as the following
100 /// special tokens:
101 /// - `"!<language_server_id>"` - A language server ID prefixed with a `!` will be disabled.
102 /// - `"..."` - A placeholder to refer to the **rest** of the registered language servers for this language.
103 pub language_servers: Vec<Arc<str>>,
104 /// Controls whether Copilot provides suggestion immediately (true)
105 /// or waits for a `copilot::Toggle` (false).
106 pub show_copilot_suggestions: bool,
107 /// Whether to show tabs and spaces in the editor.
108 pub show_whitespaces: ShowWhitespaceSetting,
109 /// Whether to start a new line with a comment when a previous line is a comment as well.
110 pub extend_comment_on_newline: bool,
111 /// Inlay hint related settings.
112 pub inlay_hints: InlayHintSettings,
113 /// Whether to automatically close brackets.
114 pub use_autoclose: bool,
115 // Controls how the editor handles the autoclosed characters.
116 pub always_treat_brackets_as_autoclosed: bool,
117 /// Which code actions to run on save
118 pub code_actions_on_format: HashMap<String, bool>,
119}
120
121impl LanguageSettings {
122 /// A token representing the rest of the available language servers.
123 const REST_OF_LANGUAGE_SERVERS: &'static str = "...";
124
125 /// Returns the customized list of language servers from the list of
126 /// available language servers.
127 pub fn customized_language_servers(
128 &self,
129 available_language_servers: &[LanguageServerName],
130 ) -> Vec<LanguageServerName> {
131 Self::resolve_language_servers(&self.language_servers, available_language_servers)
132 }
133
134 pub(crate) fn resolve_language_servers(
135 configured_language_servers: &[Arc<str>],
136 available_language_servers: &[LanguageServerName],
137 ) -> Vec<LanguageServerName> {
138 let (disabled_language_servers, enabled_language_servers): (Vec<Arc<str>>, Vec<Arc<str>>) =
139 configured_language_servers.iter().partition_map(
140 |language_server| match language_server.strip_prefix('!') {
141 Some(disabled) => Either::Left(disabled.into()),
142 None => Either::Right(language_server.clone()),
143 },
144 );
145
146 let rest = available_language_servers
147 .into_iter()
148 .filter(|&available_language_server| {
149 !disabled_language_servers.contains(&&available_language_server.0)
150 && !enabled_language_servers.contains(&&available_language_server.0)
151 })
152 .cloned()
153 .collect::<Vec<_>>();
154
155 enabled_language_servers
156 .into_iter()
157 .flat_map(|language_server| {
158 if language_server.as_ref() == Self::REST_OF_LANGUAGE_SERVERS {
159 rest.clone()
160 } else {
161 vec![LanguageServerName(language_server.clone())]
162 }
163 })
164 .collect::<Vec<_>>()
165 }
166}
167
168/// The settings for [GitHub Copilot](https://github.com/features/copilot).
169#[derive(Clone, Debug, Default)]
170pub struct CopilotSettings {
171 /// Whether Copilot is enabled.
172 pub feature_enabled: bool,
173 /// A list of globs representing files that Copilot should be disabled for.
174 pub disabled_globs: Vec<GlobMatcher>,
175}
176
177/// The settings for all languages.
178#[derive(Debug, Clone, Default, PartialEq, Serialize, Deserialize, JsonSchema)]
179pub struct AllLanguageSettingsContent {
180 /// The settings for enabling/disabling features.
181 #[serde(default)]
182 pub features: Option<FeaturesContent>,
183 /// The settings for GitHub Copilot.
184 #[serde(default)]
185 pub copilot: Option<CopilotSettingsContent>,
186 /// The default language settings.
187 #[serde(flatten)]
188 pub defaults: LanguageSettingsContent,
189 /// The settings for individual languages.
190 #[serde(default, alias = "language_overrides")]
191 pub languages: HashMap<Arc<str>, LanguageSettingsContent>,
192 /// Settings for associating file extensions and filenames
193 /// with languages.
194 #[serde(default)]
195 pub file_types: HashMap<Arc<str>, Vec<String>>,
196}
197
198/// The settings for a particular language.
199#[derive(Debug, Clone, Default, PartialEq, Serialize, Deserialize, JsonSchema)]
200pub struct LanguageSettingsContent {
201 /// How many columns a tab should occupy.
202 ///
203 /// Default: 4
204 #[serde(default)]
205 pub tab_size: Option<NonZeroU32>,
206 /// Whether to indent lines using tab characters, as opposed to multiple
207 /// spaces.
208 ///
209 /// Default: false
210 #[serde(default)]
211 pub hard_tabs: Option<bool>,
212 /// How to soft-wrap long lines of text.
213 ///
214 /// Default: none
215 #[serde(default)]
216 pub soft_wrap: Option<SoftWrap>,
217 /// The column at which to soft-wrap lines, for buffers where soft-wrap
218 /// is enabled.
219 ///
220 /// Default: 80
221 #[serde(default)]
222 pub preferred_line_length: Option<u32>,
223 /// Whether to show wrap guides in the editor. Setting this to true will
224 /// show a guide at the 'preferred_line_length' value if softwrap is set to
225 /// 'preferred_line_length', and will show any additional guides as specified
226 /// by the 'wrap_guides' setting.
227 ///
228 /// Default: true
229 #[serde(default)]
230 pub show_wrap_guides: Option<bool>,
231 /// Character counts at which to show wrap guides in the editor.
232 ///
233 /// Default: []
234 #[serde(default)]
235 pub wrap_guides: Option<Vec<usize>>,
236 /// Whether or not to perform a buffer format before saving.
237 ///
238 /// Default: on
239 #[serde(default)]
240 pub format_on_save: Option<FormatOnSave>,
241 /// Whether or not to remove any trailing whitespace from lines of a buffer
242 /// before saving it.
243 ///
244 /// Default: true
245 #[serde(default)]
246 pub remove_trailing_whitespace_on_save: Option<bool>,
247 /// Whether or not to ensure there's a single newline at the end of a buffer
248 /// when saving it.
249 ///
250 /// Default: true
251 #[serde(default)]
252 pub ensure_final_newline_on_save: Option<bool>,
253 /// How to perform a buffer format.
254 ///
255 /// Default: auto
256 #[serde(default)]
257 pub formatter: Option<Formatter>,
258 /// Zed's Prettier integration settings.
259 /// If Prettier is enabled, Zed will use this for its Prettier instance for any applicable file, if
260 /// the project has no other Prettier installed.
261 ///
262 /// Default: {}
263 #[serde(default)]
264 pub prettier: Option<HashMap<String, serde_json::Value>>,
265 /// Whether to use language servers to provide code intelligence.
266 ///
267 /// Default: true
268 #[serde(default)]
269 pub enable_language_server: Option<bool>,
270 /// The list of language servers to use (or disable) for this language.
271 ///
272 /// This array should consist of language server IDs, as well as the following
273 /// special tokens:
274 /// - `"!<language_server_id>"` - A language server ID prefixed with a `!` will be disabled.
275 /// - `"..."` - A placeholder to refer to the **rest** of the registered language servers for this language.
276 ///
277 /// Default: ["..."]
278 #[serde(default)]
279 pub language_servers: Option<Vec<Arc<str>>>,
280 /// Controls whether Copilot provides suggestion immediately (true)
281 /// or waits for a `copilot::Toggle` (false).
282 ///
283 /// Default: true
284 #[serde(default)]
285 pub show_copilot_suggestions: Option<bool>,
286 /// Whether to show tabs and spaces in the editor.
287 #[serde(default)]
288 pub show_whitespaces: Option<ShowWhitespaceSetting>,
289 /// Whether to start a new line with a comment when a previous line is a comment as well.
290 ///
291 /// Default: true
292 #[serde(default)]
293 pub extend_comment_on_newline: Option<bool>,
294 /// Inlay hint related settings.
295 #[serde(default)]
296 pub inlay_hints: Option<InlayHintSettings>,
297 /// Whether to automatically type closing characters for you. For example,
298 /// when you type (, Zed will automatically add a closing ) at the correct position.
299 ///
300 /// Default: true
301 pub use_autoclose: Option<bool>,
302 // Controls how the editor handles the autoclosed characters.
303 // When set to `false`(default), skipping over and auto-removing of the closing characters
304 // happen only for auto-inserted characters.
305 // Otherwise(when `true`), the closing characters are always skipped over and auto-removed
306 // no matter how they were inserted.
307 ///
308 /// Default: false
309 pub always_treat_brackets_as_autoclosed: Option<bool>,
310 /// Which code actions to run on save after the formatter.
311 /// These are not run if formatting is off.
312 ///
313 /// Default: {} (or {"source.organizeImports": true} for Go).
314 pub code_actions_on_format: Option<HashMap<String, bool>>,
315}
316
317/// The contents of the GitHub Copilot settings.
318#[derive(Clone, Debug, PartialEq, Default, Serialize, Deserialize, JsonSchema)]
319pub struct CopilotSettingsContent {
320 /// A list of globs representing files that Copilot should be disabled for.
321 #[serde(default)]
322 pub disabled_globs: Option<Vec<String>>,
323}
324
325/// The settings for enabling/disabling features.
326#[derive(Debug, Clone, PartialEq, Default, Serialize, Deserialize, JsonSchema)]
327#[serde(rename_all = "snake_case")]
328pub struct FeaturesContent {
329 /// Whether the GitHub Copilot feature is enabled.
330 pub copilot: Option<bool>,
331}
332
333/// Controls the soft-wrapping behavior in the editor.
334#[derive(Copy, Clone, Debug, Serialize, Deserialize, PartialEq, Eq, JsonSchema)]
335#[serde(rename_all = "snake_case")]
336pub enum SoftWrap {
337 /// Do not soft wrap.
338 None,
339 /// Prefer a single line generally, unless an overly long line is encountered.
340 PreferLine,
341 /// Soft wrap lines that overflow the editor
342 EditorWidth,
343 /// Soft wrap lines at the preferred line length
344 PreferredLineLength,
345}
346
347/// Controls the behavior of formatting files when they are saved.
348#[derive(Debug, Clone, Serialize, Deserialize, PartialEq, Eq, JsonSchema)]
349#[serde(rename_all = "snake_case")]
350pub enum FormatOnSave {
351 /// Files should be formatted on save.
352 On,
353 /// Files should not be formatted on save.
354 Off,
355 /// Files should be formatted using the current language server.
356 LanguageServer,
357 /// The external program to use to format the files on save.
358 External {
359 /// The external program to run.
360 command: Arc<str>,
361 /// The arguments to pass to the program.
362 arguments: Arc<[String]>,
363 },
364 /// Files should be formatted using code actions executed by language servers.
365 CodeActions(HashMap<String, bool>),
366}
367
368/// Controls how whitespace should be displayedin the editor.
369#[derive(Copy, Clone, Debug, Serialize, Deserialize, PartialEq, Eq, JsonSchema)]
370#[serde(rename_all = "snake_case")]
371pub enum ShowWhitespaceSetting {
372 /// Draw whitespace only for the selected text.
373 Selection,
374 /// Do not draw any tabs or spaces.
375 None,
376 /// Draw all invisible symbols.
377 All,
378}
379
380/// Controls which formatter should be used when formatting code.
381#[derive(Clone, Debug, Default, Serialize, Deserialize, PartialEq, Eq, JsonSchema)]
382#[serde(rename_all = "snake_case")]
383pub enum Formatter {
384 /// Format files using Zed's Prettier integration (if applicable),
385 /// or falling back to formatting via language server.
386 #[default]
387 Auto,
388 /// Format code using the current language server.
389 LanguageServer,
390 /// Format code using Zed's Prettier integration.
391 Prettier,
392 /// Format code using an external command.
393 External {
394 /// The external program to run.
395 command: Arc<str>,
396 /// The arguments to pass to the program.
397 arguments: Arc<[String]>,
398 },
399 /// Files should be formatted using code actions executed by language servers.
400 CodeActions(HashMap<String, bool>),
401}
402
403/// The settings for inlay hints.
404#[derive(Copy, Clone, Debug, Serialize, Deserialize, JsonSchema, PartialEq, Eq)]
405pub struct InlayHintSettings {
406 /// Global switch to toggle hints on and off.
407 ///
408 /// Default: false
409 #[serde(default)]
410 pub enabled: bool,
411 /// Whether type hints should be shown.
412 ///
413 /// Default: true
414 #[serde(default = "default_true")]
415 pub show_type_hints: bool,
416 /// Whether parameter hints should be shown.
417 ///
418 /// Default: true
419 #[serde(default = "default_true")]
420 pub show_parameter_hints: bool,
421 /// Whether other hints should be shown.
422 ///
423 /// Default: true
424 #[serde(default = "default_true")]
425 pub show_other_hints: bool,
426 /// Whether or not to debounce inlay hints updates after buffer edits.
427 ///
428 /// Set to 0 to disable debouncing.
429 ///
430 /// Default: 700
431 #[serde(default = "edit_debounce_ms")]
432 pub edit_debounce_ms: u64,
433 /// Whether or not to debounce inlay hints updates after buffer scrolls.
434 ///
435 /// Set to 0 to disable debouncing.
436 ///
437 /// Default: 50
438 #[serde(default = "scroll_debounce_ms")]
439 pub scroll_debounce_ms: u64,
440}
441
442fn edit_debounce_ms() -> u64 {
443 700
444}
445
446fn scroll_debounce_ms() -> u64 {
447 50
448}
449
450impl InlayHintSettings {
451 /// Returns the kinds of inlay hints that are enabled based on the settings.
452 pub fn enabled_inlay_hint_kinds(&self) -> HashSet<Option<InlayHintKind>> {
453 let mut kinds = HashSet::default();
454 if self.show_type_hints {
455 kinds.insert(Some(InlayHintKind::Type));
456 }
457 if self.show_parameter_hints {
458 kinds.insert(Some(InlayHintKind::Parameter));
459 }
460 if self.show_other_hints {
461 kinds.insert(None);
462 }
463 kinds
464 }
465}
466
467impl AllLanguageSettings {
468 /// Returns the [`LanguageSettings`] for the language with the specified name.
469 pub fn language<'a>(&'a self, language_name: Option<&str>) -> &'a LanguageSettings {
470 if let Some(name) = language_name {
471 if let Some(overrides) = self.languages.get(name) {
472 return overrides;
473 }
474 }
475 &self.defaults
476 }
477
478 /// Returns whether GitHub Copilot is enabled for the given path.
479 pub fn copilot_enabled_for_path(&self, path: &Path) -> bool {
480 !self
481 .copilot
482 .disabled_globs
483 .iter()
484 .any(|glob| glob.is_match(path))
485 }
486
487 /// Returns whether GitHub Copilot is enabled for the given language and path.
488 pub fn copilot_enabled(&self, language: Option<&Arc<Language>>, path: Option<&Path>) -> bool {
489 if !self.copilot.feature_enabled {
490 return false;
491 }
492
493 if let Some(path) = path {
494 if !self.copilot_enabled_for_path(path) {
495 return false;
496 }
497 }
498
499 self.language(language.map(|l| l.name()).as_deref())
500 .show_copilot_suggestions
501 }
502}
503
504/// The kind of an inlay hint.
505#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
506pub enum InlayHintKind {
507 /// An inlay hint for a type.
508 Type,
509 /// An inlay hint for a parameter.
510 Parameter,
511}
512
513impl InlayHintKind {
514 /// Returns the [`InlayHintKind`] from the given name.
515 ///
516 /// Returns `None` if `name` does not match any of the expected
517 /// string representations.
518 pub fn from_name(name: &str) -> Option<Self> {
519 match name {
520 "type" => Some(InlayHintKind::Type),
521 "parameter" => Some(InlayHintKind::Parameter),
522 _ => None,
523 }
524 }
525
526 /// Returns the name of this [`InlayHintKind`].
527 pub fn name(&self) -> &'static str {
528 match self {
529 InlayHintKind::Type => "type",
530 InlayHintKind::Parameter => "parameter",
531 }
532 }
533}
534
535impl settings::Settings for AllLanguageSettings {
536 const KEY: Option<&'static str> = None;
537
538 type FileContent = AllLanguageSettingsContent;
539
540 fn load(sources: SettingsSources<Self::FileContent>, _: &mut AppContext) -> Result<Self> {
541 let default_value = sources.default;
542
543 // A default is provided for all settings.
544 let mut defaults: LanguageSettings =
545 serde_json::from_value(serde_json::to_value(&default_value.defaults)?)?;
546
547 let mut languages = HashMap::default();
548 for (language_name, settings) in &default_value.languages {
549 let mut language_settings = defaults.clone();
550 merge_settings(&mut language_settings, settings);
551 languages.insert(language_name.clone(), language_settings);
552 }
553
554 let mut copilot_enabled = default_value
555 .features
556 .as_ref()
557 .and_then(|f| f.copilot)
558 .ok_or_else(Self::missing_default)?;
559 let mut copilot_globs = default_value
560 .copilot
561 .as_ref()
562 .and_then(|c| c.disabled_globs.as_ref())
563 .ok_or_else(Self::missing_default)?;
564
565 let mut file_types: HashMap<Arc<str>, Vec<String>> = HashMap::default();
566 for user_settings in sources.customizations() {
567 if let Some(copilot) = user_settings.features.as_ref().and_then(|f| f.copilot) {
568 copilot_enabled = copilot;
569 }
570 if let Some(globs) = user_settings
571 .copilot
572 .as_ref()
573 .and_then(|f| f.disabled_globs.as_ref())
574 {
575 copilot_globs = globs;
576 }
577
578 // A user's global settings override the default global settings and
579 // all default language-specific settings.
580 merge_settings(&mut defaults, &user_settings.defaults);
581 for language_settings in languages.values_mut() {
582 merge_settings(language_settings, &user_settings.defaults);
583 }
584
585 // A user's language-specific settings override default language-specific settings.
586 for (language_name, user_language_settings) in &user_settings.languages {
587 merge_settings(
588 languages
589 .entry(language_name.clone())
590 .or_insert_with(|| defaults.clone()),
591 user_language_settings,
592 );
593 }
594
595 for (language, suffixes) in &user_settings.file_types {
596 file_types
597 .entry(language.clone())
598 .or_default()
599 .extend_from_slice(suffixes);
600 }
601 }
602
603 Ok(Self {
604 copilot: CopilotSettings {
605 feature_enabled: copilot_enabled,
606 disabled_globs: copilot_globs
607 .iter()
608 .filter_map(|g| Some(globset::Glob::new(g).ok()?.compile_matcher()))
609 .collect(),
610 },
611 defaults,
612 languages,
613 file_types,
614 })
615 }
616
617 fn json_schema(
618 generator: &mut schemars::gen::SchemaGenerator,
619 params: &settings::SettingsJsonSchemaParams,
620 _: &AppContext,
621 ) -> schemars::schema::RootSchema {
622 let mut root_schema = generator.root_schema_for::<Self::FileContent>();
623
624 // Create a schema for a 'languages overrides' object, associating editor
625 // settings with specific languages.
626 assert!(root_schema
627 .definitions
628 .contains_key("LanguageSettingsContent"));
629
630 let languages_object_schema = SchemaObject {
631 instance_type: Some(InstanceType::Object.into()),
632 object: Some(Box::new(ObjectValidation {
633 properties: params
634 .language_names
635 .iter()
636 .map(|name| {
637 (
638 name.clone(),
639 Schema::new_ref("#/definitions/LanguageSettingsContent".into()),
640 )
641 })
642 .collect(),
643 ..Default::default()
644 })),
645 ..Default::default()
646 };
647
648 root_schema
649 .definitions
650 .extend([("Languages".into(), languages_object_schema.into())]);
651
652 root_schema
653 .schema
654 .object
655 .as_mut()
656 .unwrap()
657 .properties
658 .extend([
659 (
660 "languages".to_owned(),
661 Schema::new_ref("#/definitions/Languages".into()),
662 ),
663 // For backward compatibility
664 (
665 "language_overrides".to_owned(),
666 Schema::new_ref("#/definitions/Languages".into()),
667 ),
668 ]);
669
670 root_schema
671 }
672}
673
674fn merge_settings(settings: &mut LanguageSettings, src: &LanguageSettingsContent) {
675 fn merge<T>(target: &mut T, value: Option<T>) {
676 if let Some(value) = value {
677 *target = value;
678 }
679 }
680
681 merge(&mut settings.tab_size, src.tab_size);
682 merge(&mut settings.hard_tabs, src.hard_tabs);
683 merge(&mut settings.soft_wrap, src.soft_wrap);
684 merge(&mut settings.use_autoclose, src.use_autoclose);
685 merge(
686 &mut settings.always_treat_brackets_as_autoclosed,
687 src.always_treat_brackets_as_autoclosed,
688 );
689 merge(&mut settings.show_wrap_guides, src.show_wrap_guides);
690 merge(&mut settings.wrap_guides, src.wrap_guides.clone());
691 merge(
692 &mut settings.code_actions_on_format,
693 src.code_actions_on_format.clone(),
694 );
695
696 merge(
697 &mut settings.preferred_line_length,
698 src.preferred_line_length,
699 );
700 merge(&mut settings.formatter, src.formatter.clone());
701 merge(&mut settings.prettier, src.prettier.clone());
702 merge(&mut settings.format_on_save, src.format_on_save.clone());
703 merge(
704 &mut settings.remove_trailing_whitespace_on_save,
705 src.remove_trailing_whitespace_on_save,
706 );
707 merge(
708 &mut settings.ensure_final_newline_on_save,
709 src.ensure_final_newline_on_save,
710 );
711 merge(
712 &mut settings.enable_language_server,
713 src.enable_language_server,
714 );
715 merge(&mut settings.language_servers, src.language_servers.clone());
716 merge(
717 &mut settings.show_copilot_suggestions,
718 src.show_copilot_suggestions,
719 );
720 merge(&mut settings.show_whitespaces, src.show_whitespaces);
721 merge(
722 &mut settings.extend_comment_on_newline,
723 src.extend_comment_on_newline,
724 );
725 merge(&mut settings.inlay_hints, src.inlay_hints);
726}
727
728#[cfg(test)]
729mod tests {
730 use super::*;
731
732 #[test]
733 pub fn test_resolve_language_servers() {
734 fn language_server_names(names: &[&str]) -> Vec<LanguageServerName> {
735 names
736 .into_iter()
737 .copied()
738 .map(|name| LanguageServerName(name.into()))
739 .collect::<Vec<_>>()
740 }
741
742 let available_language_servers = language_server_names(&[
743 "typescript-language-server",
744 "biome",
745 "deno",
746 "eslint",
747 "tailwind",
748 ]);
749
750 // A value of just `["..."]` is the same as taking all of the available language servers.
751 assert_eq!(
752 LanguageSettings::resolve_language_servers(
753 &[LanguageSettings::REST_OF_LANGUAGE_SERVERS.into()],
754 &available_language_servers,
755 ),
756 available_language_servers
757 );
758
759 // Referencing one of the available language servers will change its order.
760 assert_eq!(
761 LanguageSettings::resolve_language_servers(
762 &[
763 "biome".into(),
764 LanguageSettings::REST_OF_LANGUAGE_SERVERS.into(),
765 "deno".into()
766 ],
767 &available_language_servers
768 ),
769 language_server_names(&[
770 "biome",
771 "typescript-language-server",
772 "eslint",
773 "tailwind",
774 "deno",
775 ])
776 );
777
778 // Negating an available language server removes it from the list.
779 assert_eq!(
780 LanguageSettings::resolve_language_servers(
781 &[
782 "deno".into(),
783 "!typescript-language-server".into(),
784 "!biome".into(),
785 LanguageSettings::REST_OF_LANGUAGE_SERVERS.into()
786 ],
787 &available_language_servers
788 ),
789 language_server_names(&["deno", "eslint", "tailwind"])
790 );
791
792 // Adding a language server not in the list of available language servers adds it to the list.
793 assert_eq!(
794 LanguageSettings::resolve_language_servers(
795 &[
796 "my-cool-language-server".into(),
797 LanguageSettings::REST_OF_LANGUAGE_SERVERS.into()
798 ],
799 &available_language_servers
800 ),
801 language_server_names(&[
802 "my-cool-language-server",
803 "typescript-language-server",
804 "biome",
805 "deno",
806 "eslint",
807 "tailwind",
808 ])
809 );
810 }
811}