language_settings.rs

   1//! Provides `language`-related settings.
   2
   3use crate::{File, Language, LanguageName, LanguageServerName};
   4use anyhow::Result;
   5use collections::{FxHashMap, HashMap, HashSet};
   6use ec4rs::{
   7    Properties as EditorconfigProperties,
   8    property::{FinalNewline, IndentSize, IndentStyle, MaxLineLen, TabWidth, TrimTrailingWs},
   9};
  10use globset::{Glob, GlobMatcher, GlobSet, GlobSetBuilder};
  11use gpui::{App, Modifiers};
  12use itertools::{Either, Itertools};
  13use schemars::{JsonSchema, json_schema};
  14use serde::{
  15    Deserialize, Deserializer, Serialize,
  16    de::{self, IntoDeserializer, MapAccess, SeqAccess, Visitor},
  17};
  18
  19use settings::{
  20    ParameterizedJsonSchema, Settings, SettingsKey, SettingsLocation, SettingsSources,
  21    SettingsStore, SettingsUi,
  22};
  23use shellexpand;
  24use std::{borrow::Cow, num::NonZeroU32, path::Path, slice, sync::Arc};
  25use util::schemars::replace_subschema;
  26use util::serde::default_true;
  27
  28/// Initializes the language settings.
  29pub fn init(cx: &mut App) {
  30    AllLanguageSettings::register(cx);
  31}
  32
  33/// Returns the settings for the specified language from the provided file.
  34pub fn language_settings<'a>(
  35    language: Option<LanguageName>,
  36    file: Option<&'a Arc<dyn File>>,
  37    cx: &'a App,
  38) -> Cow<'a, LanguageSettings> {
  39    let location = file.map(|f| SettingsLocation {
  40        worktree_id: f.worktree_id(cx),
  41        path: f.path().as_ref(),
  42    });
  43    AllLanguageSettings::get(location, cx).language(location, language.as_ref(), cx)
  44}
  45
  46/// Returns the settings for all languages from the provided file.
  47pub fn all_language_settings<'a>(
  48    file: Option<&'a Arc<dyn File>>,
  49    cx: &'a App,
  50) -> &'a AllLanguageSettings {
  51    let location = file.map(|f| SettingsLocation {
  52        worktree_id: f.worktree_id(cx),
  53        path: f.path().as_ref(),
  54    });
  55    AllLanguageSettings::get(location, cx)
  56}
  57
  58/// The settings for all languages.
  59#[derive(Debug, Clone)]
  60pub struct AllLanguageSettings {
  61    /// The edit prediction settings.
  62    pub edit_predictions: EditPredictionSettings,
  63    pub defaults: LanguageSettings,
  64    languages: HashMap<LanguageName, LanguageSettings>,
  65    pub(crate) file_types: FxHashMap<Arc<str>, GlobSet>,
  66}
  67
  68/// The settings for a particular language.
  69#[derive(Debug, Clone, Deserialize)]
  70pub struct LanguageSettings {
  71    /// How many columns a tab should occupy.
  72    pub tab_size: NonZeroU32,
  73    /// Whether to indent lines using tab characters, as opposed to multiple
  74    /// spaces.
  75    pub hard_tabs: bool,
  76    /// How to soft-wrap long lines of text.
  77    pub soft_wrap: SoftWrap,
  78    /// The column at which to soft-wrap lines, for buffers where soft-wrap
  79    /// is enabled.
  80    pub preferred_line_length: u32,
  81    /// Whether to show wrap guides (vertical rulers) in the editor.
  82    /// Setting this to true will show a guide at the 'preferred_line_length' value
  83    /// if softwrap is set to 'preferred_line_length', and will show any
  84    /// additional guides as specified by the 'wrap_guides' setting.
  85    pub show_wrap_guides: bool,
  86    /// Character counts at which to show wrap guides (vertical rulers) in the editor.
  87    pub wrap_guides: Vec<usize>,
  88    /// Indent guide related settings.
  89    pub indent_guides: IndentGuideSettings,
  90    /// Whether or not to perform a buffer format before saving.
  91    pub format_on_save: FormatOnSave,
  92    /// Whether or not to remove any trailing whitespace from lines of a buffer
  93    /// before saving it.
  94    pub remove_trailing_whitespace_on_save: bool,
  95    /// Whether or not to ensure there's a single newline at the end of a buffer
  96    /// when saving it.
  97    pub ensure_final_newline_on_save: bool,
  98    /// How to perform a buffer format.
  99    pub formatter: SelectedFormatter,
 100    /// Zed's Prettier integration settings.
 101    pub prettier: PrettierSettings,
 102    /// Whether to automatically close JSX tags.
 103    pub jsx_tag_auto_close: JsxTagAutoCloseSettings,
 104    /// Whether to use language servers to provide code intelligence.
 105    pub enable_language_server: bool,
 106    /// The list of language servers to use (or disable) for this language.
 107    ///
 108    /// This array should consist of language server IDs, as well as the following
 109    /// special tokens:
 110    /// - `"!<language_server_id>"` - A language server ID prefixed with a `!` will be disabled.
 111    /// - `"..."` - A placeholder to refer to the **rest** of the registered language servers for this language.
 112    pub language_servers: Vec<String>,
 113    /// Controls where the `editor::Rewrap` action is allowed for this language.
 114    ///
 115    /// Note: This setting has no effect in Vim mode, as rewrap is already
 116    /// allowed everywhere.
 117    pub allow_rewrap: RewrapBehavior,
 118    /// Controls whether edit predictions are shown immediately (true)
 119    /// or manually by triggering `editor::ShowEditPrediction` (false).
 120    pub show_edit_predictions: bool,
 121    /// Controls whether edit predictions are shown in the given language
 122    /// scopes.
 123    pub edit_predictions_disabled_in: Vec<String>,
 124    /// Whether to show tabs and spaces in the editor.
 125    pub show_whitespaces: ShowWhitespaceSetting,
 126    /// Whether to start a new line with a comment when a previous line is a comment as well.
 127    pub extend_comment_on_newline: bool,
 128    /// Inlay hint related settings.
 129    pub inlay_hints: InlayHintSettings,
 130    /// Whether to automatically close brackets.
 131    pub use_autoclose: bool,
 132    /// Whether to automatically surround text with brackets.
 133    pub use_auto_surround: bool,
 134    /// Whether to use additional LSP queries to format (and amend) the code after
 135    /// every "trigger" symbol input, defined by LSP server capabilities.
 136    pub use_on_type_format: bool,
 137    /// Whether indentation should be adjusted based on the context whilst typing.
 138    pub auto_indent: bool,
 139    /// Whether indentation of pasted content should be adjusted based on the context.
 140    pub auto_indent_on_paste: bool,
 141    /// Controls how the editor handles the autoclosed characters.
 142    pub always_treat_brackets_as_autoclosed: bool,
 143    /// Which code actions to run on save
 144    pub code_actions_on_format: HashMap<String, bool>,
 145    /// Whether to perform linked edits
 146    pub linked_edits: bool,
 147    /// Task configuration for this language.
 148    pub tasks: LanguageTaskConfig,
 149    /// Whether to pop the completions menu while typing in an editor without
 150    /// explicitly requesting it.
 151    pub show_completions_on_input: bool,
 152    /// Whether to display inline and alongside documentation for items in the
 153    /// completions menu.
 154    pub show_completion_documentation: bool,
 155    /// Completion settings for this language.
 156    pub completions: CompletionSettings,
 157    /// Preferred debuggers for this language.
 158    pub debuggers: Vec<String>,
 159}
 160
 161impl LanguageSettings {
 162    /// A token representing the rest of the available language servers.
 163    const REST_OF_LANGUAGE_SERVERS: &'static str = "...";
 164
 165    /// Returns the customized list of language servers from the list of
 166    /// available language servers.
 167    pub fn customized_language_servers(
 168        &self,
 169        available_language_servers: &[LanguageServerName],
 170    ) -> Vec<LanguageServerName> {
 171        Self::resolve_language_servers(&self.language_servers, available_language_servers)
 172    }
 173
 174    pub(crate) fn resolve_language_servers(
 175        configured_language_servers: &[String],
 176        available_language_servers: &[LanguageServerName],
 177    ) -> Vec<LanguageServerName> {
 178        let (disabled_language_servers, enabled_language_servers): (
 179            Vec<LanguageServerName>,
 180            Vec<LanguageServerName>,
 181        ) = configured_language_servers.iter().partition_map(
 182            |language_server| match language_server.strip_prefix('!') {
 183                Some(disabled) => Either::Left(LanguageServerName(disabled.to_string().into())),
 184                None => Either::Right(LanguageServerName(language_server.clone().into())),
 185            },
 186        );
 187
 188        let rest = available_language_servers
 189            .iter()
 190            .filter(|&available_language_server| {
 191                !disabled_language_servers.contains(available_language_server)
 192                    && !enabled_language_servers.contains(available_language_server)
 193            })
 194            .cloned()
 195            .collect::<Vec<_>>();
 196
 197        enabled_language_servers
 198            .into_iter()
 199            .flat_map(|language_server| {
 200                if language_server.0.as_ref() == Self::REST_OF_LANGUAGE_SERVERS {
 201                    rest.clone()
 202                } else {
 203                    vec![language_server]
 204                }
 205            })
 206            .collect::<Vec<_>>()
 207    }
 208}
 209
 210/// The provider that supplies edit predictions.
 211#[derive(
 212    Copy, Clone, Debug, Default, Eq, PartialEq, Serialize, Deserialize, JsonSchema, SettingsUi,
 213)]
 214#[serde(rename_all = "snake_case")]
 215pub enum EditPredictionProvider {
 216    None,
 217    #[default]
 218    Copilot,
 219    Supermaven,
 220    Zed,
 221}
 222
 223impl EditPredictionProvider {
 224    pub fn is_zed(&self) -> bool {
 225        match self {
 226            EditPredictionProvider::Zed => true,
 227            EditPredictionProvider::None
 228            | EditPredictionProvider::Copilot
 229            | EditPredictionProvider::Supermaven => false,
 230        }
 231    }
 232}
 233
 234/// The settings for edit predictions, such as [GitHub Copilot](https://github.com/features/copilot)
 235/// or [Supermaven](https://supermaven.com).
 236#[derive(Clone, Debug, Default, SettingsUi)]
 237pub struct EditPredictionSettings {
 238    /// The provider that supplies edit predictions.
 239    pub provider: EditPredictionProvider,
 240    /// A list of globs representing files that edit predictions should be disabled for.
 241    /// This list adds to a pre-existing, sensible default set of globs.
 242    /// Any additional ones you add are combined with them.
 243    #[settings_ui(skip)]
 244    pub disabled_globs: Vec<DisabledGlob>,
 245    /// Configures how edit predictions are displayed in the buffer.
 246    pub mode: EditPredictionsMode,
 247    /// Settings specific to GitHub Copilot.
 248    pub copilot: CopilotSettings,
 249    /// Whether edit predictions are enabled in the assistant panel.
 250    /// This setting has no effect if globally disabled.
 251    pub enabled_in_text_threads: bool,
 252}
 253
 254impl EditPredictionSettings {
 255    /// Returns whether edit predictions are enabled for the given path.
 256    pub fn enabled_for_file(&self, file: &Arc<dyn File>, cx: &App) -> bool {
 257        !self.disabled_globs.iter().any(|glob| {
 258            if glob.is_absolute {
 259                file.as_local()
 260                    .is_some_and(|local| glob.matcher.is_match(local.abs_path(cx)))
 261            } else {
 262                glob.matcher.is_match(file.path())
 263            }
 264        })
 265    }
 266}
 267
 268#[derive(Clone, Debug)]
 269pub struct DisabledGlob {
 270    matcher: GlobMatcher,
 271    is_absolute: bool,
 272}
 273
 274/// The mode in which edit predictions should be displayed.
 275#[derive(
 276    Copy, Clone, Debug, Default, Eq, PartialEq, Serialize, Deserialize, JsonSchema, SettingsUi,
 277)]
 278#[serde(rename_all = "snake_case")]
 279pub enum EditPredictionsMode {
 280    /// If provider supports it, display inline when holding modifier key (e.g., alt).
 281    /// Otherwise, eager preview is used.
 282    #[serde(alias = "auto")]
 283    Subtle,
 284    /// Display inline when there are no language server completions available.
 285    #[default]
 286    #[serde(alias = "eager_preview")]
 287    Eager,
 288}
 289
 290#[derive(Clone, Debug, Default, SettingsUi)]
 291pub struct CopilotSettings {
 292    /// HTTP/HTTPS proxy to use for Copilot.
 293    #[settings_ui(skip)]
 294    pub proxy: Option<String>,
 295    /// Disable certificate verification for proxy (not recommended).
 296    pub proxy_no_verify: Option<bool>,
 297    /// Enterprise URI for Copilot.
 298    #[settings_ui(skip)]
 299    pub enterprise_uri: Option<String>,
 300}
 301
 302/// The settings for all languages.
 303#[derive(
 304    Debug, Clone, Default, PartialEq, Serialize, Deserialize, JsonSchema, SettingsUi, SettingsKey,
 305)]
 306#[settings_key(None)]
 307#[settings_ui(group = "Default Language Settings")]
 308pub struct AllLanguageSettingsContent {
 309    /// The settings for enabling/disabling features.
 310    #[serde(default)]
 311    pub features: Option<FeaturesContent>,
 312    /// The edit prediction settings.
 313    #[serde(default)]
 314    pub edit_predictions: Option<EditPredictionSettingsContent>,
 315    /// The default language settings.
 316    #[serde(flatten)]
 317    pub defaults: LanguageSettingsContent,
 318    /// The settings for individual languages.
 319    #[serde(default)]
 320    pub languages: LanguageToSettingsMap,
 321    /// Settings for associating file extensions and filenames
 322    /// with languages.
 323    #[serde(default)]
 324    #[settings_ui(skip)]
 325    pub file_types: HashMap<Arc<str>, Vec<String>>,
 326}
 327
 328/// Map from language name to settings. Its `ParameterizedJsonSchema` allows only known language
 329/// names in the keys.
 330#[derive(Debug, Clone, Default, PartialEq, Serialize, Deserialize, JsonSchema)]
 331pub struct LanguageToSettingsMap(pub HashMap<LanguageName, LanguageSettingsContent>);
 332
 333impl SettingsUi for LanguageToSettingsMap {
 334    fn settings_ui_item() -> settings::SettingsUiItem {
 335        settings::SettingsUiItem::DynamicMap(settings::SettingsUiItemDynamicMap {
 336            item: LanguageSettingsContent::settings_ui_item,
 337            defaults_path: &[],
 338            determine_items: |settings_value, cx| {
 339                use settings::SettingsUiEntryMetaData;
 340
 341                // todo(settings_ui): We should be using a global LanguageRegistry, but it's not implemented yet
 342                _ = cx;
 343
 344                let Some(settings_language_map) = settings_value.as_object() else {
 345                    return Vec::new();
 346                };
 347                let mut languages = Vec::with_capacity(settings_language_map.len());
 348
 349                for language_name in settings_language_map.keys().map(gpui::SharedString::from) {
 350                    languages.push(SettingsUiEntryMetaData {
 351                        title: language_name.clone(),
 352                        path: language_name,
 353                        // todo(settings_ui): Implement documentation for each language
 354                        // ideally based on the language's official docs from extension or builtin info
 355                        documentation: None,
 356                    });
 357                }
 358                return languages;
 359            },
 360        })
 361    }
 362}
 363
 364inventory::submit! {
 365    ParameterizedJsonSchema {
 366        add_and_get_ref: |generator, params, _cx| {
 367            let language_settings_content_ref = generator
 368                .subschema_for::<LanguageSettingsContent>()
 369                .to_value();
 370            replace_subschema::<LanguageToSettingsMap>(generator, || json_schema!({
 371                "type": "object",
 372                "properties": params
 373                    .language_names
 374                    .iter()
 375                    .map(|name| {
 376                        (
 377                            name.clone(),
 378                            language_settings_content_ref.clone(),
 379                        )
 380                    })
 381                    .collect::<serde_json::Map<_, _>>()
 382            }))
 383        }
 384    }
 385}
 386
 387/// Controls how completions are processed for this language.
 388#[derive(Copy, Clone, Debug, Serialize, Deserialize, PartialEq, Eq, JsonSchema, SettingsUi)]
 389#[serde(rename_all = "snake_case")]
 390pub struct CompletionSettings {
 391    /// Controls how words are completed.
 392    /// For large documents, not all words may be fetched for completion.
 393    ///
 394    /// Default: `fallback`
 395    #[serde(default = "default_words_completion_mode")]
 396    pub words: WordsCompletionMode,
 397    /// How many characters has to be in the completions query to automatically show the words-based completions.
 398    /// Before that value, it's still possible to trigger the words-based completion manually with the corresponding editor command.
 399    ///
 400    /// Default: 3
 401    #[serde(default = "default_3")]
 402    pub words_min_length: usize,
 403    /// Whether to fetch LSP completions or not.
 404    ///
 405    /// Default: true
 406    #[serde(default = "default_true")]
 407    pub lsp: bool,
 408    /// When fetching LSP completions, determines how long to wait for a response of a particular server.
 409    /// When set to 0, waits indefinitely.
 410    ///
 411    /// Default: 0
 412    #[serde(default)]
 413    pub lsp_fetch_timeout_ms: u64,
 414    /// Controls how LSP completions are inserted.
 415    ///
 416    /// Default: "replace_suffix"
 417    #[serde(default = "default_lsp_insert_mode")]
 418    pub lsp_insert_mode: LspInsertMode,
 419}
 420
 421/// Controls how document's words are completed.
 422#[derive(Copy, Clone, Debug, Serialize, Deserialize, PartialEq, Eq, JsonSchema)]
 423#[serde(rename_all = "snake_case")]
 424pub enum WordsCompletionMode {
 425    /// Always fetch document's words for completions along with LSP completions.
 426    Enabled,
 427    /// Only if LSP response errors or times out,
 428    /// use document's words to show completions.
 429    Fallback,
 430    /// Never fetch or complete document's words for completions.
 431    /// (Word-based completions can still be queried via a separate action)
 432    Disabled,
 433}
 434
 435#[derive(Copy, Clone, Debug, Serialize, Deserialize, PartialEq, Eq, JsonSchema)]
 436#[serde(rename_all = "snake_case")]
 437pub enum LspInsertMode {
 438    /// Replaces text before the cursor, using the `insert` range described in the LSP specification.
 439    Insert,
 440    /// Replaces text before and after the cursor, using the `replace` range described in the LSP specification.
 441    Replace,
 442    /// Behaves like `"replace"` if the text that would be replaced is a subsequence of the completion text,
 443    /// and like `"insert"` otherwise.
 444    ReplaceSubsequence,
 445    /// Behaves like `"replace"` if the text after the cursor is a suffix of the completion, and like
 446    /// `"insert"` otherwise.
 447    ReplaceSuffix,
 448}
 449
 450fn default_words_completion_mode() -> WordsCompletionMode {
 451    WordsCompletionMode::Fallback
 452}
 453
 454fn default_lsp_insert_mode() -> LspInsertMode {
 455    LspInsertMode::ReplaceSuffix
 456}
 457
 458fn default_3() -> usize {
 459    3
 460}
 461
 462/// The settings for a particular language.
 463#[derive(Debug, Clone, Default, PartialEq, Serialize, Deserialize, JsonSchema, SettingsUi)]
 464#[settings_ui(group = "Default")]
 465pub struct LanguageSettingsContent {
 466    /// How many columns a tab should occupy.
 467    ///
 468    /// Default: 4
 469    #[serde(default)]
 470    #[settings_ui(skip)]
 471    pub tab_size: Option<NonZeroU32>,
 472    /// Whether to indent lines using tab characters, as opposed to multiple
 473    /// spaces.
 474    ///
 475    /// Default: false
 476    #[serde(default)]
 477    pub hard_tabs: Option<bool>,
 478    /// How to soft-wrap long lines of text.
 479    ///
 480    /// Default: none
 481    #[serde(default)]
 482    pub soft_wrap: Option<SoftWrap>,
 483    /// The column at which to soft-wrap lines, for buffers where soft-wrap
 484    /// is enabled.
 485    ///
 486    /// Default: 80
 487    #[serde(default)]
 488    pub preferred_line_length: Option<u32>,
 489    /// Whether to show wrap guides in the editor. Setting this to true will
 490    /// show a guide at the 'preferred_line_length' value if softwrap is set to
 491    /// 'preferred_line_length', and will show any additional guides as specified
 492    /// by the 'wrap_guides' setting.
 493    ///
 494    /// Default: true
 495    #[serde(default)]
 496    pub show_wrap_guides: Option<bool>,
 497    /// Character counts at which to show wrap guides in the editor.
 498    ///
 499    /// Default: []
 500    #[serde(default)]
 501    #[settings_ui(skip)]
 502    pub wrap_guides: Option<Vec<usize>>,
 503    /// Indent guide related settings.
 504    #[serde(default)]
 505    pub indent_guides: Option<IndentGuideSettings>,
 506    /// Whether or not to perform a buffer format before saving.
 507    ///
 508    /// Default: on
 509    #[serde(default)]
 510    pub format_on_save: Option<FormatOnSave>,
 511    /// Whether or not to remove any trailing whitespace from lines of a buffer
 512    /// before saving it.
 513    ///
 514    /// Default: true
 515    #[serde(default)]
 516    pub remove_trailing_whitespace_on_save: Option<bool>,
 517    /// Whether or not to ensure there's a single newline at the end of a buffer
 518    /// when saving it.
 519    ///
 520    /// Default: true
 521    #[serde(default)]
 522    pub ensure_final_newline_on_save: Option<bool>,
 523    /// How to perform a buffer format.
 524    ///
 525    /// Default: auto
 526    #[serde(default)]
 527    #[settings_ui(skip)]
 528    pub formatter: Option<SelectedFormatter>,
 529    /// Zed's Prettier integration settings.
 530    /// Allows to enable/disable formatting with Prettier
 531    /// and configure default Prettier, used when no project-level Prettier installation is found.
 532    ///
 533    /// Default: off
 534    #[serde(default)]
 535    pub prettier: Option<PrettierSettings>,
 536    /// Whether to automatically close JSX tags.
 537    #[serde(default)]
 538    pub jsx_tag_auto_close: Option<JsxTagAutoCloseSettings>,
 539    /// Whether to use language servers to provide code intelligence.
 540    ///
 541    /// Default: true
 542    #[serde(default)]
 543    pub enable_language_server: Option<bool>,
 544    /// The list of language servers to use (or disable) for this language.
 545    ///
 546    /// This array should consist of language server IDs, as well as the following
 547    /// special tokens:
 548    /// - `"!<language_server_id>"` - A language server ID prefixed with a `!` will be disabled.
 549    /// - `"..."` - A placeholder to refer to the **rest** of the registered language servers for this language.
 550    ///
 551    /// Default: ["..."]
 552    #[serde(default)]
 553    #[settings_ui(skip)]
 554    pub language_servers: Option<Vec<String>>,
 555    /// Controls where the `editor::Rewrap` action is allowed for this language.
 556    ///
 557    /// Note: This setting has no effect in Vim mode, as rewrap is already
 558    /// allowed everywhere.
 559    ///
 560    /// Default: "in_comments"
 561    #[serde(default)]
 562    pub allow_rewrap: Option<RewrapBehavior>,
 563    /// Controls whether edit predictions are shown immediately (true)
 564    /// or manually by triggering `editor::ShowEditPrediction` (false).
 565    ///
 566    /// Default: true
 567    #[serde(default)]
 568    pub show_edit_predictions: Option<bool>,
 569    /// Controls whether edit predictions are shown in the given language
 570    /// scopes.
 571    ///
 572    /// Example: ["string", "comment"]
 573    ///
 574    /// Default: []
 575    #[serde(default)]
 576    #[settings_ui(skip)]
 577    pub edit_predictions_disabled_in: Option<Vec<String>>,
 578    /// Whether to show tabs and spaces in the editor.
 579    #[serde(default)]
 580    pub show_whitespaces: Option<ShowWhitespaceSetting>,
 581    /// Whether to start a new line with a comment when a previous line is a comment as well.
 582    ///
 583    /// Default: true
 584    #[serde(default)]
 585    pub extend_comment_on_newline: Option<bool>,
 586    /// Inlay hint related settings.
 587    #[serde(default)]
 588    pub inlay_hints: Option<InlayHintSettings>,
 589    /// Whether to automatically type closing characters for you. For example,
 590    /// when you type (, Zed will automatically add a closing ) at the correct position.
 591    ///
 592    /// Default: true
 593    pub use_autoclose: Option<bool>,
 594    /// Whether to automatically surround text with characters for you. For example,
 595    /// when you select text and type (, Zed will automatically surround text with ().
 596    ///
 597    /// Default: true
 598    pub use_auto_surround: Option<bool>,
 599    /// Controls how the editor handles the autoclosed characters.
 600    /// When set to `false`(default), skipping over and auto-removing of the closing characters
 601    /// happen only for auto-inserted characters.
 602    /// Otherwise(when `true`), the closing characters are always skipped over and auto-removed
 603    /// no matter how they were inserted.
 604    ///
 605    /// Default: false
 606    pub always_treat_brackets_as_autoclosed: Option<bool>,
 607    /// Whether to use additional LSP queries to format (and amend) the code after
 608    /// every "trigger" symbol input, defined by LSP server capabilities.
 609    ///
 610    /// Default: true
 611    pub use_on_type_format: Option<bool>,
 612    /// Which code actions to run on save after the formatter.
 613    /// These are not run if formatting is off.
 614    ///
 615    /// Default: {} (or {"source.organizeImports": true} for Go).
 616    #[settings_ui(skip)]
 617    pub code_actions_on_format: Option<HashMap<String, bool>>,
 618    /// Whether to perform linked edits of associated ranges, if the language server supports it.
 619    /// For example, when editing opening <html> tag, the contents of the closing </html> tag will be edited as well.
 620    ///
 621    /// Default: true
 622    pub linked_edits: Option<bool>,
 623    /// Whether indentation should be adjusted based on the context whilst typing.
 624    ///
 625    /// Default: true
 626    pub auto_indent: Option<bool>,
 627    /// Whether indentation of pasted content should be adjusted based on the context.
 628    ///
 629    /// Default: true
 630    pub auto_indent_on_paste: Option<bool>,
 631    /// Task configuration for this language.
 632    ///
 633    /// Default: {}
 634    pub tasks: Option<LanguageTaskConfig>,
 635    /// Whether to pop the completions menu while typing in an editor without
 636    /// explicitly requesting it.
 637    ///
 638    /// Default: true
 639    pub show_completions_on_input: Option<bool>,
 640    /// Whether to display inline and alongside documentation for items in the
 641    /// completions menu.
 642    ///
 643    /// Default: true
 644    pub show_completion_documentation: Option<bool>,
 645    /// Controls how completions are processed for this language.
 646    pub completions: Option<CompletionSettings>,
 647    /// Preferred debuggers for this language.
 648    ///
 649    /// Default: []
 650    #[settings_ui(skip)]
 651    pub debuggers: Option<Vec<String>>,
 652}
 653
 654/// The behavior of `editor::Rewrap`.
 655#[derive(
 656    Debug, PartialEq, Clone, Copy, Default, Serialize, Deserialize, JsonSchema, SettingsUi,
 657)]
 658#[serde(rename_all = "snake_case")]
 659pub enum RewrapBehavior {
 660    /// Only rewrap within comments.
 661    #[default]
 662    InComments,
 663    /// Only rewrap within the current selection(s).
 664    InSelections,
 665    /// Allow rewrapping anywhere.
 666    Anywhere,
 667}
 668
 669/// The contents of the edit prediction settings.
 670#[derive(Clone, Debug, Default, Serialize, Deserialize, JsonSchema, PartialEq, SettingsUi)]
 671pub struct EditPredictionSettingsContent {
 672    /// A list of globs representing files that edit predictions should be disabled for.
 673    /// This list adds to a pre-existing, sensible default set of globs.
 674    /// Any additional ones you add are combined with them.
 675    #[serde(default)]
 676    #[settings_ui(skip)]
 677    pub disabled_globs: Option<Vec<String>>,
 678    /// The mode used to display edit predictions in the buffer.
 679    /// Provider support required.
 680    #[serde(default)]
 681    pub mode: EditPredictionsMode,
 682    /// Settings specific to GitHub Copilot.
 683    #[serde(default)]
 684    pub copilot: CopilotSettingsContent,
 685    /// Whether edit predictions are enabled in the assistant prompt editor.
 686    /// This has no effect if globally disabled.
 687    #[serde(default = "default_true")]
 688    pub enabled_in_text_threads: bool,
 689}
 690
 691#[derive(Clone, Debug, Default, Serialize, Deserialize, JsonSchema, PartialEq, SettingsUi)]
 692pub struct CopilotSettingsContent {
 693    /// HTTP/HTTPS proxy to use for Copilot.
 694    ///
 695    /// Default: none
 696    #[serde(default)]
 697    #[settings_ui(skip)]
 698    pub proxy: Option<String>,
 699    /// Disable certificate verification for the proxy (not recommended).
 700    ///
 701    /// Default: false
 702    #[serde(default)]
 703    pub proxy_no_verify: Option<bool>,
 704    /// Enterprise URI for Copilot.
 705    ///
 706    /// Default: none
 707    #[serde(default)]
 708    #[settings_ui(skip)]
 709    pub enterprise_uri: Option<String>,
 710}
 711
 712/// The settings for enabling/disabling features.
 713#[derive(Debug, Clone, PartialEq, Default, Serialize, Deserialize, JsonSchema, SettingsUi)]
 714#[serde(rename_all = "snake_case")]
 715#[settings_ui(group = "Features")]
 716pub struct FeaturesContent {
 717    /// Determines which edit prediction provider to use.
 718    pub edit_prediction_provider: Option<EditPredictionProvider>,
 719}
 720
 721/// Controls the soft-wrapping behavior in the editor.
 722#[derive(Copy, Clone, Debug, Serialize, Deserialize, PartialEq, Eq, JsonSchema, SettingsUi)]
 723#[serde(rename_all = "snake_case")]
 724pub enum SoftWrap {
 725    /// Prefer a single line generally, unless an overly long line is encountered.
 726    None,
 727    /// Deprecated: use None instead. Left to avoid breaking existing users' configs.
 728    /// Prefer a single line generally, unless an overly long line is encountered.
 729    PreferLine,
 730    /// Soft wrap lines that exceed the editor width.
 731    EditorWidth,
 732    /// Soft wrap lines at the preferred line length.
 733    PreferredLineLength,
 734    /// Soft wrap line at the preferred line length or the editor width (whichever is smaller).
 735    Bounded,
 736}
 737
 738/// Controls the behavior of formatting files when they are saved.
 739#[derive(Debug, Clone, PartialEq, Eq, SettingsUi)]
 740pub enum FormatOnSave {
 741    /// Files should be formatted on save.
 742    On,
 743    /// Files should not be formatted on save.
 744    Off,
 745    List(FormatterList),
 746}
 747
 748impl JsonSchema for FormatOnSave {
 749    fn schema_name() -> Cow<'static, str> {
 750        "OnSaveFormatter".into()
 751    }
 752
 753    fn json_schema(generator: &mut schemars::SchemaGenerator) -> schemars::Schema {
 754        let formatter_schema = Formatter::json_schema(generator);
 755
 756        json_schema!({
 757            "oneOf": [
 758                {
 759                    "type": "array",
 760                    "items": formatter_schema
 761                },
 762                {
 763                    "type": "string",
 764                    "enum": ["on", "off", "language_server"]
 765                },
 766                formatter_schema
 767            ]
 768        })
 769    }
 770}
 771
 772impl Serialize for FormatOnSave {
 773    fn serialize<S>(&self, serializer: S) -> std::result::Result<S::Ok, S::Error>
 774    where
 775        S: serde::Serializer,
 776    {
 777        match self {
 778            Self::On => serializer.serialize_str("on"),
 779            Self::Off => serializer.serialize_str("off"),
 780            Self::List(list) => list.serialize(serializer),
 781        }
 782    }
 783}
 784
 785impl<'de> Deserialize<'de> for FormatOnSave {
 786    fn deserialize<D>(deserializer: D) -> std::result::Result<Self, D::Error>
 787    where
 788        D: Deserializer<'de>,
 789    {
 790        struct FormatDeserializer;
 791
 792        impl<'d> Visitor<'d> for FormatDeserializer {
 793            type Value = FormatOnSave;
 794
 795            fn expecting(&self, formatter: &mut std::fmt::Formatter) -> std::fmt::Result {
 796                formatter.write_str("a valid on-save formatter kind")
 797            }
 798            fn visit_str<E>(self, v: &str) -> std::result::Result<Self::Value, E>
 799            where
 800                E: serde::de::Error,
 801            {
 802                if v == "on" {
 803                    Ok(Self::Value::On)
 804                } else if v == "off" {
 805                    Ok(Self::Value::Off)
 806                } else if v == "language_server" {
 807                    Ok(Self::Value::List(FormatterList::Single(
 808                        Formatter::LanguageServer { name: None },
 809                    )))
 810                } else {
 811                    let ret: Result<FormatterList, _> =
 812                        Deserialize::deserialize(v.into_deserializer());
 813                    ret.map(Self::Value::List)
 814                }
 815            }
 816            fn visit_map<A>(self, map: A) -> Result<Self::Value, A::Error>
 817            where
 818                A: MapAccess<'d>,
 819            {
 820                let ret: Result<FormatterList, _> =
 821                    Deserialize::deserialize(de::value::MapAccessDeserializer::new(map));
 822                ret.map(Self::Value::List)
 823            }
 824            fn visit_seq<A>(self, map: A) -> Result<Self::Value, A::Error>
 825            where
 826                A: SeqAccess<'d>,
 827            {
 828                let ret: Result<FormatterList, _> =
 829                    Deserialize::deserialize(de::value::SeqAccessDeserializer::new(map));
 830                ret.map(Self::Value::List)
 831            }
 832        }
 833        deserializer.deserialize_any(FormatDeserializer)
 834    }
 835}
 836
 837/// Controls how whitespace should be displayedin the editor.
 838#[derive(Copy, Clone, Debug, Serialize, Deserialize, PartialEq, Eq, JsonSchema, SettingsUi)]
 839#[serde(rename_all = "snake_case")]
 840pub enum ShowWhitespaceSetting {
 841    /// Draw whitespace only for the selected text.
 842    Selection,
 843    /// Do not draw any tabs or spaces.
 844    None,
 845    /// Draw all invisible symbols.
 846    All,
 847    /// Draw whitespaces at boundaries only.
 848    ///
 849    /// For a whitespace to be on a boundary, any of the following conditions need to be met:
 850    /// - It is a tab
 851    /// - It is adjacent to an edge (start or end)
 852    /// - It is adjacent to a whitespace (left or right)
 853    Boundary,
 854    /// Draw whitespaces only after non-whitespace characters.
 855    Trailing,
 856}
 857
 858/// Controls which formatter should be used when formatting code.
 859#[derive(Clone, Debug, Default, PartialEq, Eq, SettingsUi)]
 860pub enum SelectedFormatter {
 861    /// Format files using Zed's Prettier integration (if applicable),
 862    /// or falling back to formatting via language server.
 863    #[default]
 864    Auto,
 865    List(FormatterList),
 866}
 867
 868impl JsonSchema for SelectedFormatter {
 869    fn schema_name() -> Cow<'static, str> {
 870        "Formatter".into()
 871    }
 872
 873    fn json_schema(generator: &mut schemars::SchemaGenerator) -> schemars::Schema {
 874        let formatter_schema = Formatter::json_schema(generator);
 875
 876        json_schema!({
 877            "oneOf": [
 878                {
 879                    "type": "array",
 880                    "items": formatter_schema
 881                },
 882                {
 883                    "type": "string",
 884                    "enum": ["auto", "language_server"]
 885                },
 886                formatter_schema
 887            ]
 888        })
 889    }
 890}
 891
 892impl Serialize for SelectedFormatter {
 893    fn serialize<S>(&self, serializer: S) -> std::result::Result<S::Ok, S::Error>
 894    where
 895        S: serde::Serializer,
 896    {
 897        match self {
 898            SelectedFormatter::Auto => serializer.serialize_str("auto"),
 899            SelectedFormatter::List(list) => list.serialize(serializer),
 900        }
 901    }
 902}
 903
 904impl<'de> Deserialize<'de> for SelectedFormatter {
 905    fn deserialize<D>(deserializer: D) -> std::result::Result<Self, D::Error>
 906    where
 907        D: Deserializer<'de>,
 908    {
 909        struct FormatDeserializer;
 910
 911        impl<'d> Visitor<'d> for FormatDeserializer {
 912            type Value = SelectedFormatter;
 913
 914            fn expecting(&self, formatter: &mut std::fmt::Formatter) -> std::fmt::Result {
 915                formatter.write_str("a valid formatter kind")
 916            }
 917            fn visit_str<E>(self, v: &str) -> std::result::Result<Self::Value, E>
 918            where
 919                E: serde::de::Error,
 920            {
 921                if v == "auto" {
 922                    Ok(Self::Value::Auto)
 923                } else if v == "language_server" {
 924                    Ok(Self::Value::List(FormatterList::Single(
 925                        Formatter::LanguageServer { name: None },
 926                    )))
 927                } else {
 928                    let ret: Result<FormatterList, _> =
 929                        Deserialize::deserialize(v.into_deserializer());
 930                    ret.map(SelectedFormatter::List)
 931                }
 932            }
 933            fn visit_map<A>(self, map: A) -> Result<Self::Value, A::Error>
 934            where
 935                A: MapAccess<'d>,
 936            {
 937                let ret: Result<FormatterList, _> =
 938                    Deserialize::deserialize(de::value::MapAccessDeserializer::new(map));
 939                ret.map(SelectedFormatter::List)
 940            }
 941            fn visit_seq<A>(self, map: A) -> Result<Self::Value, A::Error>
 942            where
 943                A: SeqAccess<'d>,
 944            {
 945                let ret: Result<FormatterList, _> =
 946                    Deserialize::deserialize(de::value::SeqAccessDeserializer::new(map));
 947                ret.map(SelectedFormatter::List)
 948            }
 949        }
 950        deserializer.deserialize_any(FormatDeserializer)
 951    }
 952}
 953
 954/// Controls which formatters should be used when formatting code.
 955#[derive(Clone, Debug, Serialize, Deserialize, PartialEq, Eq, JsonSchema)]
 956#[serde(untagged)]
 957pub enum FormatterList {
 958    Single(Formatter),
 959    Vec(Vec<Formatter>),
 960}
 961
 962impl AsRef<[Formatter]> for FormatterList {
 963    fn as_ref(&self) -> &[Formatter] {
 964        match &self {
 965            Self::Single(single) => slice::from_ref(single),
 966            Self::Vec(v) => v,
 967        }
 968    }
 969}
 970
 971/// Controls which formatter should be used when formatting code. If there are multiple formatters, they are executed in the order of declaration.
 972#[derive(Clone, Debug, Serialize, Deserialize, PartialEq, Eq, JsonSchema)]
 973#[serde(rename_all = "snake_case")]
 974pub enum Formatter {
 975    /// Format code using the current language server.
 976    LanguageServer { name: Option<String> },
 977    /// Format code using Zed's Prettier integration.
 978    Prettier,
 979    /// Format code using an external command.
 980    External {
 981        /// The external program to run.
 982        command: Arc<str>,
 983        /// The arguments to pass to the program.
 984        arguments: Option<Arc<[String]>>,
 985    },
 986    /// Files should be formatted using code actions executed by language servers.
 987    CodeActions(HashMap<String, bool>),
 988}
 989
 990/// The settings for indent guides.
 991#[derive(
 992    Default, Debug, Copy, Clone, PartialEq, Eq, Serialize, Deserialize, JsonSchema, SettingsUi,
 993)]
 994pub struct IndentGuideSettings {
 995    /// Whether to display indent guides in the editor.
 996    ///
 997    /// Default: true
 998    #[serde(default = "default_true")]
 999    pub enabled: bool,
1000    /// The width of the indent guides in pixels, between 1 and 10.
1001    ///
1002    /// Default: 1
1003    #[serde(default = "line_width")]
1004    pub line_width: u32,
1005    /// The width of the active indent guide in pixels, between 1 and 10.
1006    ///
1007    /// Default: 1
1008    #[serde(default = "active_line_width")]
1009    pub active_line_width: u32,
1010    /// Determines how indent guides are colored.
1011    ///
1012    /// Default: Fixed
1013    #[serde(default)]
1014    pub coloring: IndentGuideColoring,
1015    /// Determines how indent guide backgrounds are colored.
1016    ///
1017    /// Default: Disabled
1018    #[serde(default)]
1019    pub background_coloring: IndentGuideBackgroundColoring,
1020}
1021
1022fn line_width() -> u32 {
1023    1
1024}
1025
1026fn active_line_width() -> u32 {
1027    line_width()
1028}
1029
1030/// Determines how indent guides are colored.
1031#[derive(Default, Debug, Copy, Clone, PartialEq, Eq, Serialize, Deserialize, JsonSchema)]
1032#[serde(rename_all = "snake_case")]
1033pub enum IndentGuideColoring {
1034    /// Do not render any lines for indent guides.
1035    Disabled,
1036    /// Use the same color for all indentation levels.
1037    #[default]
1038    Fixed,
1039    /// Use a different color for each indentation level.
1040    IndentAware,
1041}
1042
1043/// Determines how indent guide backgrounds are colored.
1044#[derive(Default, Debug, Copy, Clone, PartialEq, Eq, Serialize, Deserialize, JsonSchema)]
1045#[serde(rename_all = "snake_case")]
1046pub enum IndentGuideBackgroundColoring {
1047    /// Do not render any background for indent guides.
1048    #[default]
1049    Disabled,
1050    /// Use a different color for each indentation level.
1051    IndentAware,
1052}
1053
1054/// The settings for inlay hints.
1055#[derive(Copy, Clone, Debug, Serialize, Deserialize, JsonSchema, PartialEq, Eq, SettingsUi)]
1056pub struct InlayHintSettings {
1057    /// Global switch to toggle hints on and off.
1058    ///
1059    /// Default: false
1060    #[serde(default)]
1061    pub enabled: bool,
1062    /// Global switch to toggle inline values on and off when debugging.
1063    ///
1064    /// Default: true
1065    #[serde(default = "default_true")]
1066    pub show_value_hints: bool,
1067    /// Whether type hints should be shown.
1068    ///
1069    /// Default: true
1070    #[serde(default = "default_true")]
1071    pub show_type_hints: bool,
1072    /// Whether parameter hints should be shown.
1073    ///
1074    /// Default: true
1075    #[serde(default = "default_true")]
1076    pub show_parameter_hints: bool,
1077    /// Whether other hints should be shown.
1078    ///
1079    /// Default: true
1080    #[serde(default = "default_true")]
1081    pub show_other_hints: bool,
1082    /// Whether to show a background for inlay hints.
1083    ///
1084    /// If set to `true`, the background will use the `hint.background` color
1085    /// from the current theme.
1086    ///
1087    /// Default: false
1088    #[serde(default)]
1089    pub show_background: bool,
1090    /// Whether or not to debounce inlay hints updates after buffer edits.
1091    ///
1092    /// Set to 0 to disable debouncing.
1093    ///
1094    /// Default: 700
1095    #[serde(default = "edit_debounce_ms")]
1096    pub edit_debounce_ms: u64,
1097    /// Whether or not to debounce inlay hints updates after buffer scrolls.
1098    ///
1099    /// Set to 0 to disable debouncing.
1100    ///
1101    /// Default: 50
1102    #[serde(default = "scroll_debounce_ms")]
1103    pub scroll_debounce_ms: u64,
1104    /// Toggles inlay hints (hides or shows) when the user presses the modifiers specified.
1105    /// If only a subset of the modifiers specified is pressed, hints are not toggled.
1106    /// If no modifiers are specified, this is equivalent to `None`.
1107    ///
1108    /// Default: None
1109    #[serde(default)]
1110    pub toggle_on_modifiers_press: Option<Modifiers>,
1111}
1112
1113fn edit_debounce_ms() -> u64 {
1114    700
1115}
1116
1117fn scroll_debounce_ms() -> u64 {
1118    50
1119}
1120
1121/// The task settings for a particular language.
1122#[derive(Debug, Clone, Deserialize, PartialEq, Serialize, JsonSchema, SettingsUi)]
1123pub struct LanguageTaskConfig {
1124    /// Extra task variables to set for a particular language.
1125    #[serde(default)]
1126    pub variables: HashMap<String, String>,
1127    #[serde(default = "default_true")]
1128    pub enabled: bool,
1129    /// Use LSP tasks over Zed language extension ones.
1130    /// If no LSP tasks are returned due to error/timeout or regular execution,
1131    /// Zed language extension tasks will be used instead.
1132    ///
1133    /// Other Zed tasks will still be shown:
1134    /// * Zed task from either of the task config file
1135    /// * Zed task from history (e.g. one-off task was spawned before)
1136    #[serde(default = "default_true")]
1137    pub prefer_lsp: bool,
1138}
1139
1140impl InlayHintSettings {
1141    /// Returns the kinds of inlay hints that are enabled based on the settings.
1142    pub fn enabled_inlay_hint_kinds(&self) -> HashSet<Option<InlayHintKind>> {
1143        let mut kinds = HashSet::default();
1144        if self.show_type_hints {
1145            kinds.insert(Some(InlayHintKind::Type));
1146        }
1147        if self.show_parameter_hints {
1148            kinds.insert(Some(InlayHintKind::Parameter));
1149        }
1150        if self.show_other_hints {
1151            kinds.insert(None);
1152        }
1153        kinds
1154    }
1155}
1156
1157impl AllLanguageSettings {
1158    /// Returns the [`LanguageSettings`] for the language with the specified name.
1159    pub fn language<'a>(
1160        &'a self,
1161        location: Option<SettingsLocation<'a>>,
1162        language_name: Option<&LanguageName>,
1163        cx: &'a App,
1164    ) -> Cow<'a, LanguageSettings> {
1165        let settings = language_name
1166            .and_then(|name| self.languages.get(name))
1167            .unwrap_or(&self.defaults);
1168
1169        let editorconfig_properties = location.and_then(|location| {
1170            cx.global::<SettingsStore>()
1171                .editorconfig_properties(location.worktree_id, location.path)
1172        });
1173        if let Some(editorconfig_properties) = editorconfig_properties {
1174            let mut settings = settings.clone();
1175            merge_with_editorconfig(&mut settings, &editorconfig_properties);
1176            Cow::Owned(settings)
1177        } else {
1178            Cow::Borrowed(settings)
1179        }
1180    }
1181
1182    /// Returns whether edit predictions are enabled for the given path.
1183    pub fn edit_predictions_enabled_for_file(&self, file: &Arc<dyn File>, cx: &App) -> bool {
1184        self.edit_predictions.enabled_for_file(file, cx)
1185    }
1186
1187    /// Returns whether edit predictions are enabled for the given language and path.
1188    pub fn show_edit_predictions(&self, language: Option<&Arc<Language>>, cx: &App) -> bool {
1189        self.language(None, language.map(|l| l.name()).as_ref(), cx)
1190            .show_edit_predictions
1191    }
1192
1193    /// Returns the edit predictions preview mode for the given language and path.
1194    pub fn edit_predictions_mode(&self) -> EditPredictionsMode {
1195        self.edit_predictions.mode
1196    }
1197}
1198
1199fn merge_with_editorconfig(settings: &mut LanguageSettings, cfg: &EditorconfigProperties) {
1200    let preferred_line_length = cfg.get::<MaxLineLen>().ok().and_then(|v| match v {
1201        MaxLineLen::Value(u) => Some(u as u32),
1202        MaxLineLen::Off => None,
1203    });
1204    let tab_size = cfg.get::<IndentSize>().ok().and_then(|v| match v {
1205        IndentSize::Value(u) => NonZeroU32::new(u as u32),
1206        IndentSize::UseTabWidth => cfg.get::<TabWidth>().ok().and_then(|w| match w {
1207            TabWidth::Value(u) => NonZeroU32::new(u as u32),
1208        }),
1209    });
1210    let hard_tabs = cfg
1211        .get::<IndentStyle>()
1212        .map(|v| v.eq(&IndentStyle::Tabs))
1213        .ok();
1214    let ensure_final_newline_on_save = cfg
1215        .get::<FinalNewline>()
1216        .map(|v| match v {
1217            FinalNewline::Value(b) => b,
1218        })
1219        .ok();
1220    let remove_trailing_whitespace_on_save = cfg
1221        .get::<TrimTrailingWs>()
1222        .map(|v| match v {
1223            TrimTrailingWs::Value(b) => b,
1224        })
1225        .ok();
1226    fn merge<T>(target: &mut T, value: Option<T>) {
1227        if let Some(value) = value {
1228            *target = value;
1229        }
1230    }
1231    merge(&mut settings.preferred_line_length, preferred_line_length);
1232    merge(&mut settings.tab_size, tab_size);
1233    merge(&mut settings.hard_tabs, hard_tabs);
1234    merge(
1235        &mut settings.remove_trailing_whitespace_on_save,
1236        remove_trailing_whitespace_on_save,
1237    );
1238    merge(
1239        &mut settings.ensure_final_newline_on_save,
1240        ensure_final_newline_on_save,
1241    );
1242}
1243
1244/// The kind of an inlay hint.
1245#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
1246pub enum InlayHintKind {
1247    /// An inlay hint for a type.
1248    Type,
1249    /// An inlay hint for a parameter.
1250    Parameter,
1251}
1252
1253impl InlayHintKind {
1254    /// Returns the [`InlayHintKind`] from the given name.
1255    ///
1256    /// Returns `None` if `name` does not match any of the expected
1257    /// string representations.
1258    pub fn from_name(name: &str) -> Option<Self> {
1259        match name {
1260            "type" => Some(InlayHintKind::Type),
1261            "parameter" => Some(InlayHintKind::Parameter),
1262            _ => None,
1263        }
1264    }
1265
1266    /// Returns the name of this [`InlayHintKind`].
1267    pub fn name(&self) -> &'static str {
1268        match self {
1269            InlayHintKind::Type => "type",
1270            InlayHintKind::Parameter => "parameter",
1271        }
1272    }
1273}
1274
1275impl settings::Settings for AllLanguageSettings {
1276    type FileContent = AllLanguageSettingsContent;
1277
1278    fn load(sources: SettingsSources<Self::FileContent>, _: &mut App) -> Result<Self> {
1279        let default_value = sources.default;
1280
1281        // A default is provided for all settings.
1282        let mut defaults: LanguageSettings =
1283            serde_json::from_value(serde_json::to_value(&default_value.defaults)?)?;
1284
1285        let mut languages = HashMap::default();
1286        for (language_name, settings) in &default_value.languages.0 {
1287            let mut language_settings = defaults.clone();
1288            merge_settings(&mut language_settings, settings);
1289            languages.insert(language_name.clone(), language_settings);
1290        }
1291
1292        let mut edit_prediction_provider = default_value
1293            .features
1294            .as_ref()
1295            .and_then(|f| f.edit_prediction_provider);
1296        let mut edit_predictions_mode = default_value
1297            .edit_predictions
1298            .as_ref()
1299            .map(|edit_predictions| edit_predictions.mode)
1300            .ok_or_else(Self::missing_default)?;
1301
1302        let mut completion_globs: HashSet<&String> = default_value
1303            .edit_predictions
1304            .as_ref()
1305            .and_then(|c| c.disabled_globs.as_ref())
1306            .map(|globs| globs.iter().collect())
1307            .ok_or_else(Self::missing_default)?;
1308
1309        let mut copilot_settings = default_value
1310            .edit_predictions
1311            .as_ref()
1312            .map(|settings| CopilotSettings {
1313                proxy: settings.copilot.proxy.clone(),
1314                proxy_no_verify: settings.copilot.proxy_no_verify,
1315                enterprise_uri: settings.copilot.enterprise_uri.clone(),
1316            })
1317            .unwrap_or_default();
1318
1319        let mut enabled_in_text_threads = default_value
1320            .edit_predictions
1321            .as_ref()
1322            .map(|settings| settings.enabled_in_text_threads)
1323            .unwrap_or(true);
1324
1325        let mut file_types: FxHashMap<Arc<str>, GlobSet> = FxHashMap::default();
1326
1327        for (language, patterns) in &default_value.file_types {
1328            let mut builder = GlobSetBuilder::new();
1329
1330            for pattern in patterns {
1331                builder.add(Glob::new(pattern)?);
1332            }
1333
1334            file_types.insert(language.clone(), builder.build()?);
1335        }
1336
1337        for user_settings in sources.customizations() {
1338            if let Some(provider) = user_settings
1339                .features
1340                .as_ref()
1341                .and_then(|f| f.edit_prediction_provider)
1342            {
1343                edit_prediction_provider = Some(provider);
1344            }
1345
1346            if let Some(edit_predictions) = user_settings.edit_predictions.as_ref() {
1347                edit_predictions_mode = edit_predictions.mode;
1348                enabled_in_text_threads = edit_predictions.enabled_in_text_threads;
1349
1350                if let Some(disabled_globs) = edit_predictions.disabled_globs.as_ref() {
1351                    completion_globs.extend(disabled_globs.iter());
1352                }
1353            }
1354
1355            if let Some(proxy) = user_settings
1356                .edit_predictions
1357                .as_ref()
1358                .and_then(|settings| settings.copilot.proxy.clone())
1359            {
1360                copilot_settings.proxy = Some(proxy);
1361            }
1362
1363            if let Some(proxy_no_verify) = user_settings
1364                .edit_predictions
1365                .as_ref()
1366                .and_then(|settings| settings.copilot.proxy_no_verify)
1367            {
1368                copilot_settings.proxy_no_verify = Some(proxy_no_verify);
1369            }
1370
1371            if let Some(enterprise_uri) = user_settings
1372                .edit_predictions
1373                .as_ref()
1374                .and_then(|settings| settings.copilot.enterprise_uri.clone())
1375            {
1376                copilot_settings.enterprise_uri = Some(enterprise_uri);
1377            }
1378
1379            // A user's global settings override the default global settings and
1380            // all default language-specific settings.
1381            merge_settings(&mut defaults, &user_settings.defaults);
1382            for language_settings in languages.values_mut() {
1383                merge_settings(language_settings, &user_settings.defaults);
1384            }
1385
1386            // A user's language-specific settings override default language-specific settings.
1387            for (language_name, user_language_settings) in &user_settings.languages.0 {
1388                merge_settings(
1389                    languages
1390                        .entry(language_name.clone())
1391                        .or_insert_with(|| defaults.clone()),
1392                    user_language_settings,
1393                );
1394            }
1395
1396            for (language, patterns) in &user_settings.file_types {
1397                let mut builder = GlobSetBuilder::new();
1398
1399                let default_value = default_value.file_types.get(&language.clone());
1400
1401                // Merge the default value with the user's value.
1402                if let Some(patterns) = default_value {
1403                    for pattern in patterns {
1404                        builder.add(Glob::new(pattern)?);
1405                    }
1406                }
1407
1408                for pattern in patterns {
1409                    builder.add(Glob::new(pattern)?);
1410                }
1411
1412                file_types.insert(language.clone(), builder.build()?);
1413            }
1414        }
1415
1416        Ok(Self {
1417            edit_predictions: EditPredictionSettings {
1418                provider: if let Some(provider) = edit_prediction_provider {
1419                    provider
1420                } else {
1421                    EditPredictionProvider::None
1422                },
1423                disabled_globs: completion_globs
1424                    .iter()
1425                    .filter_map(|g| {
1426                        let expanded_g = shellexpand::tilde(g).into_owned();
1427                        Some(DisabledGlob {
1428                            matcher: globset::Glob::new(&expanded_g).ok()?.compile_matcher(),
1429                            is_absolute: Path::new(&expanded_g).is_absolute(),
1430                        })
1431                    })
1432                    .collect(),
1433                mode: edit_predictions_mode,
1434                copilot: copilot_settings,
1435                enabled_in_text_threads,
1436            },
1437            defaults,
1438            languages,
1439            file_types,
1440        })
1441    }
1442
1443    fn import_from_vscode(vscode: &settings::VsCodeSettings, current: &mut Self::FileContent) {
1444        let d = &mut current.defaults;
1445        if let Some(size) = vscode
1446            .read_value("editor.tabSize")
1447            .and_then(|v| v.as_u64())
1448            .and_then(|n| NonZeroU32::new(n as u32))
1449        {
1450            d.tab_size = Some(size);
1451        }
1452        if let Some(v) = vscode.read_bool("editor.insertSpaces") {
1453            d.hard_tabs = Some(!v);
1454        }
1455
1456        vscode.enum_setting("editor.wordWrap", &mut d.soft_wrap, |s| match s {
1457            "on" => Some(SoftWrap::EditorWidth),
1458            "wordWrapColumn" => Some(SoftWrap::PreferLine),
1459            "bounded" => Some(SoftWrap::Bounded),
1460            "off" => Some(SoftWrap::None),
1461            _ => None,
1462        });
1463        vscode.u32_setting("editor.wordWrapColumn", &mut d.preferred_line_length);
1464
1465        if let Some(arr) = vscode
1466            .read_value("editor.rulers")
1467            .and_then(|v| v.as_array())
1468            .map(|v| v.iter().map(|n| n.as_u64().map(|n| n as usize)).collect())
1469        {
1470            d.wrap_guides = arr;
1471        }
1472        if let Some(b) = vscode.read_bool("editor.guides.indentation") {
1473            if let Some(guide_settings) = d.indent_guides.as_mut() {
1474                guide_settings.enabled = b;
1475            } else {
1476                d.indent_guides = Some(IndentGuideSettings {
1477                    enabled: b,
1478                    ..Default::default()
1479                });
1480            }
1481        }
1482
1483        if let Some(b) = vscode.read_bool("editor.guides.formatOnSave") {
1484            d.format_on_save = Some(if b {
1485                FormatOnSave::On
1486            } else {
1487                FormatOnSave::Off
1488            });
1489        }
1490        vscode.bool_setting(
1491            "editor.trimAutoWhitespace",
1492            &mut d.remove_trailing_whitespace_on_save,
1493        );
1494        vscode.bool_setting(
1495            "files.insertFinalNewline",
1496            &mut d.ensure_final_newline_on_save,
1497        );
1498        vscode.bool_setting("editor.inlineSuggest.enabled", &mut d.show_edit_predictions);
1499        vscode.enum_setting("editor.renderWhitespace", &mut d.show_whitespaces, |s| {
1500            Some(match s {
1501                "boundary" => ShowWhitespaceSetting::Boundary,
1502                "trailing" => ShowWhitespaceSetting::Trailing,
1503                "selection" => ShowWhitespaceSetting::Selection,
1504                "all" => ShowWhitespaceSetting::All,
1505                _ => ShowWhitespaceSetting::None,
1506            })
1507        });
1508        vscode.enum_setting(
1509            "editor.autoSurround",
1510            &mut d.use_auto_surround,
1511            |s| match s {
1512                "languageDefined" | "quotes" | "brackets" => Some(true),
1513                "never" => Some(false),
1514                _ => None,
1515            },
1516        );
1517        vscode.bool_setting("editor.formatOnType", &mut d.use_on_type_format);
1518        vscode.bool_setting("editor.linkedEditing", &mut d.linked_edits);
1519        vscode.bool_setting("editor.formatOnPaste", &mut d.auto_indent_on_paste);
1520        vscode.bool_setting(
1521            "editor.suggestOnTriggerCharacters",
1522            &mut d.show_completions_on_input,
1523        );
1524        if let Some(b) = vscode.read_bool("editor.suggest.showWords") {
1525            let mode = if b {
1526                WordsCompletionMode::Enabled
1527            } else {
1528                WordsCompletionMode::Disabled
1529            };
1530            if let Some(completion_settings) = d.completions.as_mut() {
1531                completion_settings.words = mode;
1532            } else {
1533                d.completions = Some(CompletionSettings {
1534                    words: mode,
1535                    words_min_length: 3,
1536                    lsp: true,
1537                    lsp_fetch_timeout_ms: 0,
1538                    lsp_insert_mode: LspInsertMode::ReplaceSuffix,
1539                });
1540            }
1541        }
1542        // TODO: pull ^ out into helper and reuse for per-language settings
1543
1544        // vscodes file association map is inverted from ours, so we flip the mapping before merging
1545        let mut associations: HashMap<Arc<str>, Vec<String>> = HashMap::default();
1546        if let Some(map) = vscode
1547            .read_value("files.associations")
1548            .and_then(|v| v.as_object())
1549        {
1550            for (k, v) in map {
1551                let Some(v) = v.as_str() else { continue };
1552                associations.entry(v.into()).or_default().push(k.clone());
1553            }
1554        }
1555
1556        // TODO: do we want to merge imported globs per filetype? for now we'll just replace
1557        current.file_types.extend(associations);
1558
1559        // cursor global ignore list applies to cursor-tab, so transfer it to edit_predictions.disabled_globs
1560        if let Some(disabled_globs) = vscode
1561            .read_value("cursor.general.globalCursorIgnoreList")
1562            .and_then(|v| v.as_array())
1563        {
1564            current
1565                .edit_predictions
1566                .get_or_insert_default()
1567                .disabled_globs
1568                .get_or_insert_default()
1569                .extend(
1570                    disabled_globs
1571                        .iter()
1572                        .filter_map(|glob| glob.as_str())
1573                        .map(|s| s.to_string()),
1574                );
1575        }
1576    }
1577}
1578
1579fn merge_settings(settings: &mut LanguageSettings, src: &LanguageSettingsContent) {
1580    fn merge<T>(target: &mut T, value: Option<T>) {
1581        if let Some(value) = value {
1582            *target = value;
1583        }
1584    }
1585
1586    merge(&mut settings.tab_size, src.tab_size);
1587    settings.tab_size = settings
1588        .tab_size
1589        .clamp(NonZeroU32::new(1).unwrap(), NonZeroU32::new(16).unwrap());
1590
1591    merge(&mut settings.hard_tabs, src.hard_tabs);
1592    merge(&mut settings.soft_wrap, src.soft_wrap);
1593    merge(&mut settings.use_autoclose, src.use_autoclose);
1594    merge(&mut settings.use_auto_surround, src.use_auto_surround);
1595    merge(&mut settings.use_on_type_format, src.use_on_type_format);
1596    merge(&mut settings.auto_indent, src.auto_indent);
1597    merge(&mut settings.auto_indent_on_paste, src.auto_indent_on_paste);
1598    merge(
1599        &mut settings.always_treat_brackets_as_autoclosed,
1600        src.always_treat_brackets_as_autoclosed,
1601    );
1602    merge(&mut settings.show_wrap_guides, src.show_wrap_guides);
1603    merge(&mut settings.wrap_guides, src.wrap_guides.clone());
1604    merge(&mut settings.indent_guides, src.indent_guides);
1605    merge(
1606        &mut settings.code_actions_on_format,
1607        src.code_actions_on_format.clone(),
1608    );
1609    merge(&mut settings.linked_edits, src.linked_edits);
1610    merge(&mut settings.tasks, src.tasks.clone());
1611
1612    merge(
1613        &mut settings.preferred_line_length,
1614        src.preferred_line_length,
1615    );
1616    merge(&mut settings.formatter, src.formatter.clone());
1617    merge(&mut settings.prettier, src.prettier.clone());
1618    merge(
1619        &mut settings.jsx_tag_auto_close,
1620        src.jsx_tag_auto_close.clone(),
1621    );
1622    merge(&mut settings.format_on_save, src.format_on_save.clone());
1623    merge(
1624        &mut settings.remove_trailing_whitespace_on_save,
1625        src.remove_trailing_whitespace_on_save,
1626    );
1627    merge(
1628        &mut settings.ensure_final_newline_on_save,
1629        src.ensure_final_newline_on_save,
1630    );
1631    merge(
1632        &mut settings.enable_language_server,
1633        src.enable_language_server,
1634    );
1635    merge(&mut settings.language_servers, src.language_servers.clone());
1636    merge(&mut settings.allow_rewrap, src.allow_rewrap);
1637    merge(
1638        &mut settings.show_edit_predictions,
1639        src.show_edit_predictions,
1640    );
1641    merge(
1642        &mut settings.edit_predictions_disabled_in,
1643        src.edit_predictions_disabled_in.clone(),
1644    );
1645    merge(&mut settings.show_whitespaces, src.show_whitespaces);
1646    merge(
1647        &mut settings.extend_comment_on_newline,
1648        src.extend_comment_on_newline,
1649    );
1650    merge(&mut settings.inlay_hints, src.inlay_hints);
1651    merge(
1652        &mut settings.show_completions_on_input,
1653        src.show_completions_on_input,
1654    );
1655    merge(
1656        &mut settings.show_completion_documentation,
1657        src.show_completion_documentation,
1658    );
1659    merge(&mut settings.completions, src.completions);
1660}
1661
1662/// Allows to enable/disable formatting with Prettier
1663/// and configure default Prettier, used when no project-level Prettier installation is found.
1664/// Prettier formatting is disabled by default.
1665#[derive(Default, Debug, Clone, PartialEq, Eq, Serialize, Deserialize, JsonSchema, SettingsUi)]
1666pub struct PrettierSettings {
1667    /// Enables or disables formatting with Prettier for a given language.
1668    #[serde(default)]
1669    pub allowed: bool,
1670
1671    /// Forces Prettier integration to use a specific parser name when formatting files with the language.
1672    #[serde(default)]
1673    pub parser: Option<String>,
1674
1675    /// Forces Prettier integration to use specific plugins when formatting files with the language.
1676    /// The default Prettier will be installed with these plugins.
1677    #[serde(default)]
1678    #[settings_ui(skip)]
1679    pub plugins: HashSet<String>,
1680
1681    /// Default Prettier options, in the format as in package.json section for Prettier.
1682    /// If project installs Prettier via its package.json, these options will be ignored.
1683    #[serde(flatten)]
1684    #[settings_ui(skip)]
1685    pub options: HashMap<String, serde_json::Value>,
1686}
1687
1688#[derive(Default, Debug, Clone, PartialEq, Eq, Serialize, Deserialize, JsonSchema, SettingsUi)]
1689pub struct JsxTagAutoCloseSettings {
1690    /// Enables or disables auto-closing of JSX tags.
1691    #[serde(default)]
1692    pub enabled: bool,
1693}
1694
1695#[cfg(test)]
1696mod tests {
1697    use gpui::TestAppContext;
1698
1699    use super::*;
1700
1701    #[test]
1702    fn test_formatter_deserialization() {
1703        let raw_auto = "{\"formatter\": \"auto\"}";
1704        let settings: LanguageSettingsContent = serde_json::from_str(raw_auto).unwrap();
1705        assert_eq!(settings.formatter, Some(SelectedFormatter::Auto));
1706        let raw = "{\"formatter\": \"language_server\"}";
1707        let settings: LanguageSettingsContent = serde_json::from_str(raw).unwrap();
1708        assert_eq!(
1709            settings.formatter,
1710            Some(SelectedFormatter::List(FormatterList::Single(
1711                Formatter::LanguageServer { name: None }
1712            )))
1713        );
1714        let raw = "{\"formatter\": [{\"language_server\": {\"name\": null}}]}";
1715        let settings: LanguageSettingsContent = serde_json::from_str(raw).unwrap();
1716        assert_eq!(
1717            settings.formatter,
1718            Some(SelectedFormatter::List(FormatterList::Vec(vec![
1719                Formatter::LanguageServer { name: None }
1720            ])))
1721        );
1722        let raw = "{\"formatter\": [{\"language_server\": {\"name\": null}}, \"prettier\"]}";
1723        let settings: LanguageSettingsContent = serde_json::from_str(raw).unwrap();
1724        assert_eq!(
1725            settings.formatter,
1726            Some(SelectedFormatter::List(FormatterList::Vec(vec![
1727                Formatter::LanguageServer { name: None },
1728                Formatter::Prettier
1729            ])))
1730        );
1731    }
1732
1733    #[test]
1734    fn test_formatter_deserialization_invalid() {
1735        let raw_auto = "{\"formatter\": {}}";
1736        let result: Result<LanguageSettingsContent, _> = serde_json::from_str(raw_auto);
1737        assert!(result.is_err());
1738    }
1739
1740    #[gpui::test]
1741    fn test_edit_predictions_enabled_for_file(cx: &mut TestAppContext) {
1742        use crate::TestFile;
1743        use std::path::PathBuf;
1744
1745        let cx = cx.app.borrow_mut();
1746
1747        let build_settings = |globs: &[&str]| -> EditPredictionSettings {
1748            EditPredictionSettings {
1749                disabled_globs: globs
1750                    .iter()
1751                    .map(|glob_str| {
1752                        #[cfg(windows)]
1753                        let glob_str = {
1754                            let mut g = String::new();
1755
1756                            if glob_str.starts_with('/') {
1757                                g.push_str("C:");
1758                            }
1759
1760                            g.push_str(&glob_str.replace('/', "\\"));
1761                            g
1762                        };
1763                        #[cfg(windows)]
1764                        let glob_str = glob_str.as_str();
1765                        let expanded_glob_str = shellexpand::tilde(glob_str).into_owned();
1766                        DisabledGlob {
1767                            matcher: globset::Glob::new(&expanded_glob_str)
1768                                .unwrap()
1769                                .compile_matcher(),
1770                            is_absolute: Path::new(&expanded_glob_str).is_absolute(),
1771                        }
1772                    })
1773                    .collect(),
1774                ..Default::default()
1775            }
1776        };
1777
1778        const WORKTREE_NAME: &str = "project";
1779        let make_test_file = |segments: &[&str]| -> Arc<dyn File> {
1780            let mut path_buf = PathBuf::new();
1781            path_buf.extend(segments);
1782
1783            Arc::new(TestFile {
1784                path: path_buf.as_path().into(),
1785                root_name: WORKTREE_NAME.to_string(),
1786                local_root: Some(PathBuf::from(if cfg!(windows) {
1787                    "C:\\absolute\\"
1788                } else {
1789                    "/absolute/"
1790                })),
1791            })
1792        };
1793
1794        let test_file = make_test_file(&["src", "test", "file.rs"]);
1795
1796        // Test relative globs
1797        let settings = build_settings(&["*.rs"]);
1798        assert!(!settings.enabled_for_file(&test_file, &cx));
1799        let settings = build_settings(&["*.txt"]);
1800        assert!(settings.enabled_for_file(&test_file, &cx));
1801
1802        // Test absolute globs
1803        let settings = build_settings(&["/absolute/**/*.rs"]);
1804        assert!(!settings.enabled_for_file(&test_file, &cx));
1805        let settings = build_settings(&["/other/**/*.rs"]);
1806        assert!(settings.enabled_for_file(&test_file, &cx));
1807
1808        // Test exact path match relative
1809        let settings = build_settings(&["src/test/file.rs"]);
1810        assert!(!settings.enabled_for_file(&test_file, &cx));
1811        let settings = build_settings(&["src/test/otherfile.rs"]);
1812        assert!(settings.enabled_for_file(&test_file, &cx));
1813
1814        // Test exact path match absolute
1815        let settings = build_settings(&[&format!("/absolute/{}/src/test/file.rs", WORKTREE_NAME)]);
1816        assert!(!settings.enabled_for_file(&test_file, &cx));
1817        let settings = build_settings(&["/other/test/otherfile.rs"]);
1818        assert!(settings.enabled_for_file(&test_file, &cx));
1819
1820        // Test * glob
1821        let settings = build_settings(&["*"]);
1822        assert!(!settings.enabled_for_file(&test_file, &cx));
1823        let settings = build_settings(&["*.txt"]);
1824        assert!(settings.enabled_for_file(&test_file, &cx));
1825
1826        // Test **/* glob
1827        let settings = build_settings(&["**/*"]);
1828        assert!(!settings.enabled_for_file(&test_file, &cx));
1829        let settings = build_settings(&["other/**/*"]);
1830        assert!(settings.enabled_for_file(&test_file, &cx));
1831
1832        // Test directory/** glob
1833        let settings = build_settings(&["src/**"]);
1834        assert!(!settings.enabled_for_file(&test_file, &cx));
1835
1836        let test_file_root: Arc<dyn File> = Arc::new(TestFile {
1837            path: PathBuf::from("file.rs").as_path().into(),
1838            root_name: WORKTREE_NAME.to_string(),
1839            local_root: Some(PathBuf::from("/absolute/")),
1840        });
1841        assert!(settings.enabled_for_file(&test_file_root, &cx));
1842
1843        let settings = build_settings(&["other/**"]);
1844        assert!(settings.enabled_for_file(&test_file, &cx));
1845
1846        // Test **/directory/* glob
1847        let settings = build_settings(&["**/test/*"]);
1848        assert!(!settings.enabled_for_file(&test_file, &cx));
1849        let settings = build_settings(&["**/other/*"]);
1850        assert!(settings.enabled_for_file(&test_file, &cx));
1851
1852        // Test multiple globs
1853        let settings = build_settings(&["*.rs", "*.txt", "src/**"]);
1854        assert!(!settings.enabled_for_file(&test_file, &cx));
1855        let settings = build_settings(&["*.txt", "*.md", "other/**"]);
1856        assert!(settings.enabled_for_file(&test_file, &cx));
1857
1858        // Test dot files
1859        let dot_file = make_test_file(&[".config", "settings.json"]);
1860        let settings = build_settings(&[".*/**"]);
1861        assert!(!settings.enabled_for_file(&dot_file, &cx));
1862
1863        let dot_env_file = make_test_file(&[".env"]);
1864        let settings = build_settings(&[".env"]);
1865        assert!(!settings.enabled_for_file(&dot_env_file, &cx));
1866
1867        // Test tilde expansion
1868        let home = shellexpand::tilde("~").into_owned();
1869        let home_file = make_test_file(&[&home, "test.rs"]);
1870        let settings = build_settings(&["~/test.rs"]);
1871        assert!(!settings.enabled_for_file(&home_file, &cx));
1872    }
1873
1874    #[test]
1875    fn test_resolve_language_servers() {
1876        fn language_server_names(names: &[&str]) -> Vec<LanguageServerName> {
1877            names
1878                .iter()
1879                .copied()
1880                .map(|name| LanguageServerName(name.to_string().into()))
1881                .collect::<Vec<_>>()
1882        }
1883
1884        let available_language_servers = language_server_names(&[
1885            "typescript-language-server",
1886            "biome",
1887            "deno",
1888            "eslint",
1889            "tailwind",
1890        ]);
1891
1892        // A value of just `["..."]` is the same as taking all of the available language servers.
1893        assert_eq!(
1894            LanguageSettings::resolve_language_servers(
1895                &[LanguageSettings::REST_OF_LANGUAGE_SERVERS.into()],
1896                &available_language_servers,
1897            ),
1898            available_language_servers
1899        );
1900
1901        // Referencing one of the available language servers will change its order.
1902        assert_eq!(
1903            LanguageSettings::resolve_language_servers(
1904                &[
1905                    "biome".into(),
1906                    LanguageSettings::REST_OF_LANGUAGE_SERVERS.into(),
1907                    "deno".into()
1908                ],
1909                &available_language_servers
1910            ),
1911            language_server_names(&[
1912                "biome",
1913                "typescript-language-server",
1914                "eslint",
1915                "tailwind",
1916                "deno",
1917            ])
1918        );
1919
1920        // Negating an available language server removes it from the list.
1921        assert_eq!(
1922            LanguageSettings::resolve_language_servers(
1923                &[
1924                    "deno".into(),
1925                    "!typescript-language-server".into(),
1926                    "!biome".into(),
1927                    LanguageSettings::REST_OF_LANGUAGE_SERVERS.into()
1928                ],
1929                &available_language_servers
1930            ),
1931            language_server_names(&["deno", "eslint", "tailwind"])
1932        );
1933
1934        // Adding a language server not in the list of available language servers adds it to the list.
1935        assert_eq!(
1936            LanguageSettings::resolve_language_servers(
1937                &[
1938                    "my-cool-language-server".into(),
1939                    LanguageSettings::REST_OF_LANGUAGE_SERVERS.into()
1940                ],
1941                &available_language_servers
1942            ),
1943            language_server_names(&[
1944                "my-cool-language-server",
1945                "typescript-language-server",
1946                "biome",
1947                "deno",
1948                "eslint",
1949                "tailwind",
1950            ])
1951        );
1952    }
1953}