Use LanguageServerName in more places (#18167)

This pushes the new LanguageServerName type to more places.

As both languages and language servers were identified by Arc<str>, it
was
sometimes hard to tell which was intended.

Release Notes:

- N/A

Author: ConradIrwin

crates/activity_indicator/src/activity_indicator.rs

@@ -19,7 +19,10 @@ use workspace::{item::ItemHandle, StatusItemView, Workspace};
 actions!(activity_indicator, [ShowErrorMessage]);
 
 pub enum Event {
-    ShowError { lsp_name: Arc<str>, error: String },
+    ShowError {
+        lsp_name: LanguageServerName,
+        error: String,
+    },
 }
 
 pub struct ActivityIndicator {
@@ -123,7 +126,7 @@ impl ActivityIndicator {
         self.statuses.retain(|status| {
             if let LanguageServerBinaryStatus::Failed { error } = &status.status {
                 cx.emit(Event::ShowError {
-                    lsp_name: status.name.0.clone(),
+                    lsp_name: status.name.clone(),
                     error: error.clone(),
                 });
                 false

crates/collab/src/tests/remote_editing_collaboration_tests.rs

@@ -102,7 +102,7 @@ async fn test_sharing_an_ssh_remote_project(
             all_language_settings(file, cx)
                 .language(Some(&("Rust".into())))
                 .language_servers,
-            ["override-rust-analyzer".into()]
+            ["override-rust-analyzer".to_string()]
         )
     });
 

crates/extension/src/wasm_host/wit/since_v0_1_0.rs

@@ -9,10 +9,10 @@ use futures::{io::BufReader, FutureExt as _};
 use futures::{lock::Mutex, AsyncReadExt};
 use indexed_docs::IndexedDocsDatabase;
 use isahc::config::{Configurable, RedirectPolicy};
-use language::LanguageName;
 use language::{
     language_settings::AllLanguageSettings, LanguageServerBinaryStatus, LspAdapterDelegate,
 };
+use language::{LanguageName, LanguageServerName};
 use project::project_settings::ProjectSettings;
 use semantic_version::SemanticVersion;
 use std::{
@@ -366,7 +366,7 @@ impl ExtensionImports for WasmState {
                             .and_then(|key| {
                                 ProjectSettings::get(location, cx)
                                     .lsp
-                                    .get(&Arc::<str>::from(key))
+                                    .get(&LanguageServerName(key.into()))
                             })
                             .cloned()
                             .unwrap_or_default();

crates/extension/src/wasm_host/wit/since_v0_2_0.rs

@@ -9,10 +9,10 @@ use futures::{io::BufReader, FutureExt as _};
 use futures::{lock::Mutex, AsyncReadExt};
 use indexed_docs::IndexedDocsDatabase;
 use isahc::config::{Configurable, RedirectPolicy};
-use language::LanguageName;
 use language::{
     language_settings::AllLanguageSettings, LanguageServerBinaryStatus, LspAdapterDelegate,
 };
+use language::{LanguageName, LanguageServerName};
 use project::project_settings::ProjectSettings;
 use semantic_version::SemanticVersion;
 use std::{
@@ -412,7 +412,7 @@ impl ExtensionImports for WasmState {
                             .and_then(|key| {
                                 ProjectSettings::get(location, cx)
                                     .lsp
-                                    .get(&Arc::<str>::from(key))
+                                    .get(&LanguageServerName::from_proto(key))
                             })
                             .cloned()
                             .unwrap_or_default();

crates/gpui/src/shared_string.rs

@@ -9,6 +9,13 @@ use util::arc_cow::ArcCow;
 #[derive(Deref, DerefMut, Eq, PartialEq, PartialOrd, Ord, Hash, Clone)]
 pub struct SharedString(ArcCow<'static, str>);
 
+impl SharedString {
+    /// creates a static SharedString
+    pub const fn new_static(s: &'static str) -> Self {
+        Self(ArcCow::Borrowed(s))
+    }
+}
+
 impl Default for SharedString {
     fn default() -> Self {
         Self(ArcCow::Owned(Arc::default()))

crates/language/src/language.rs

@@ -139,11 +139,52 @@ pub trait ToLspPosition {
 
 /// A name of a language server.
 #[derive(Clone, Debug, PartialEq, Eq, PartialOrd, Ord, Hash, Deserialize, Serialize)]
-pub struct LanguageServerName(pub Arc<str>);
+pub struct LanguageServerName(pub SharedString);
 
+impl std::fmt::Display for LanguageServerName {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        std::fmt::Display::fmt(&self.0, f)
+    }
+}
+
+impl AsRef<str> for LanguageServerName {
+    fn as_ref(&self) -> &str {
+        self.0.as_ref()
+    }
+}
+
+impl AsRef<OsStr> for LanguageServerName {
+    fn as_ref(&self) -> &OsStr {
+        self.0.as_ref().as_ref()
+    }
+}
+
+impl JsonSchema for LanguageServerName {
+    fn schema_name() -> String {
+        "LanguageServerName".into()
+    }
+
+    fn json_schema(_: &mut SchemaGenerator) -> Schema {
+        SchemaObject {
+            instance_type: Some(InstanceType::String.into()),
+            ..Default::default()
+        }
+        .into()
+    }
+}
 impl LanguageServerName {
+    pub const fn new_static(s: &'static str) -> Self {
+        Self(SharedString::new_static(s))
+    }
+
     pub fn from_proto(s: String) -> Self {
-        Self(Arc::from(s))
+        Self(s.into())
+    }
+}
+
+impl<'a> From<&'a str> for LanguageServerName {
+    fn from(str: &'a str) -> LanguageServerName {
+        LanguageServerName(str.to_string().into())
     }
 }
 
@@ -202,8 +243,8 @@ impl CachedLspAdapter {
         })
     }
 
-    pub fn name(&self) -> Arc<str> {
-        self.adapter.name().0.clone()
+    pub fn name(&self) -> LanguageServerName {
+        self.adapter.name().clone()
     }
 
     pub async fn get_language_server_command(
@@ -594,7 +635,7 @@ pub struct LanguageConfig {
     pub block_comment: Option<(Arc<str>, Arc<str>)>,
     /// A list of language servers that are allowed to run on subranges of a given language.
     #[serde(default)]
-    pub scope_opt_in_language_servers: Vec<String>,
+    pub scope_opt_in_language_servers: Vec<LanguageServerName>,
     #[serde(default)]
     pub overrides: HashMap<String, LanguageConfigOverride>,
     /// A list of characters that Zed should treat as word characters for the
@@ -658,7 +699,7 @@ pub struct LanguageConfigOverride {
     #[serde(default)]
     pub word_characters: Override<HashSet<char>>,
     #[serde(default)]
-    pub opt_into_language_servers: Vec<String>,
+    pub opt_into_language_servers: Vec<LanguageServerName>,
 }
 
 #[derive(Clone, Deserialize, Debug, Serialize, JsonSchema)]
@@ -1479,9 +1520,9 @@ impl LanguageScope {
     pub fn language_allowed(&self, name: &LanguageServerName) -> bool {
         let config = &self.language.config;
         let opt_in_servers = &config.scope_opt_in_language_servers;
-        if opt_in_servers.iter().any(|o| *o == *name.0) {
+        if opt_in_servers.iter().any(|o| *o == *name) {
             if let Some(over) = self.config_override() {
-                over.opt_into_language_servers.iter().any(|o| *o == *name.0)
+                over.opt_into_language_servers.iter().any(|o| *o == *name)
             } else {
                 false
             }

crates/language/src/language_settings.rs

@@ -99,7 +99,7 @@ pub struct LanguageSettings {
     /// special tokens:
     /// - `"!<language_server_id>"` - A language server ID prefixed with a `!` will be disabled.
     /// - `"..."` - A placeholder to refer to the **rest** of the registered language servers for this language.
-    pub language_servers: Vec<Arc<str>>,
+    pub language_servers: Vec<String>,
     /// Controls whether inline completions are shown immediately (true)
     /// or manually by triggering `editor::ShowInlineCompletion` (false).
     pub show_inline_completions: bool,
@@ -137,33 +137,35 @@ impl LanguageSettings {
     }
 
     pub(crate) fn resolve_language_servers(
-        configured_language_servers: &[Arc<str>],
+        configured_language_servers: &[String],
         available_language_servers: &[LanguageServerName],
     ) -> Vec<LanguageServerName> {
-        let (disabled_language_servers, enabled_language_servers): (Vec<Arc<str>>, Vec<Arc<str>>) =
-            configured_language_servers.iter().partition_map(
-                |language_server| match language_server.strip_prefix('!') {
-                    Some(disabled) => Either::Left(disabled.into()),
-                    None => Either::Right(language_server.clone()),
-                },
-            );
+        let (disabled_language_servers, enabled_language_servers): (
+            Vec<LanguageServerName>,
+            Vec<LanguageServerName>,
+        ) = configured_language_servers.iter().partition_map(
+            |language_server| match language_server.strip_prefix('!') {
+                Some(disabled) => Either::Left(LanguageServerName(disabled.to_string().into())),
+                None => Either::Right(LanguageServerName(language_server.clone().into())),
+            },
+        );
 
         let rest = available_language_servers
             .iter()
             .filter(|&available_language_server| {
-                !disabled_language_servers.contains(&available_language_server.0)
-                    && !enabled_language_servers.contains(&available_language_server.0)
+                !disabled_language_servers.contains(&available_language_server)
+                    && !enabled_language_servers.contains(&available_language_server)
             })
             .cloned()
             .collect::<Vec<_>>();
 
         enabled_language_servers
             .into_iter()
             .flat_map(|language_server| {
-                if language_server.as_ref() == Self::REST_OF_LANGUAGE_SERVERS {
+                if language_server.0.as_ref() == Self::REST_OF_LANGUAGE_SERVERS {
                     rest.clone()
                 } else {
-                    vec![LanguageServerName(language_server.clone())]
+                    vec![language_server.clone()]
                 }
             })
             .collect::<Vec<_>>()
@@ -295,7 +297,7 @@ pub struct LanguageSettingsContent {
     ///
     /// Default: ["..."]
     #[serde(default)]
-    pub language_servers: Option<Vec<Arc<str>>>,
+    pub language_servers: Option<Vec<String>>,
     /// Controls whether inline completions are shown immediately (true)
     /// or manually by triggering `editor::ShowInlineCompletion` (false).
     ///
@@ -1165,7 +1167,7 @@ mod tests {
             names
                 .iter()
                 .copied()
-                .map(|name| LanguageServerName(name.into()))
+                .map(|name| LanguageServerName(name.to_string().into()))
                 .collect::<Vec<_>>()
         }
 

crates/language_tools/src/lsp_log.rs

@@ -236,7 +236,7 @@ impl LogStore {
                             ));
                         this.add_language_server(
                             LanguageServerKind::Global {
-                                name: LanguageServerName(Arc::from("copilot")),
+                                name: LanguageServerName::new_static("copilot"),
                             },
                             server.server_id(),
                             Some(server.clone()),

crates/languages/src/c.rs

@@ -13,13 +13,13 @@ use util::{fs::remove_matching, maybe, ResultExt};
 pub struct CLspAdapter;
 
 impl CLspAdapter {
-    const SERVER_NAME: &'static str = "clangd";
+    const SERVER_NAME: LanguageServerName = LanguageServerName::new_static("clangd");
 }
 
 #[async_trait(?Send)]
 impl super::LspAdapter for CLspAdapter {
     fn name(&self) -> LanguageServerName {
-        LanguageServerName(Self::SERVER_NAME.into())
+        Self::SERVER_NAME.clone()
     }
 
     async fn check_if_user_installed(
@@ -28,7 +28,8 @@ impl super::LspAdapter for CLspAdapter {
         cx: &AsyncAppContext,
     ) -> Option<LanguageServerBinary> {
         let configured_binary = cx.update(|cx| {
-            language_server_settings(delegate, Self::SERVER_NAME, cx).and_then(|s| s.binary.clone())
+            language_server_settings(delegate, &Self::SERVER_NAME, cx)
+                .and_then(|s| s.binary.clone())
         });
 
         match configured_binary {

crates/languages/src/go.rs

@@ -33,7 +33,7 @@ fn server_binary_arguments() -> Vec<OsString> {
 pub struct GoLspAdapter;
 
 impl GoLspAdapter {
-    const SERVER_NAME: &'static str = "gopls";
+    const SERVER_NAME: LanguageServerName = LanguageServerName::new_static("gopls");
 }
 
 static GOPLS_VERSION_REGEX: LazyLock<Regex> =
@@ -46,7 +46,7 @@ static GO_ESCAPE_SUBTEST_NAME_REGEX: LazyLock<Regex> = LazyLock::new(|| {
 #[async_trait(?Send)]
 impl super::LspAdapter for GoLspAdapter {
     fn name(&self) -> LanguageServerName {
-        LanguageServerName(Self::SERVER_NAME.into())
+        Self::SERVER_NAME.clone()
     }
 
     async fn fetch_latest_server_version(
@@ -71,7 +71,8 @@ impl super::LspAdapter for GoLspAdapter {
         cx: &AsyncAppContext,
     ) -> Option<LanguageServerBinary> {
         let configured_binary = cx.update(|cx| {
-            language_server_settings(delegate, Self::SERVER_NAME, cx).and_then(|s| s.binary.clone())
+            language_server_settings(delegate, &Self::SERVER_NAME, cx)
+                .and_then(|s| s.binary.clone())
         });
 
         match configured_binary {