use zed_extension_api::{self as zed, Result, settings::LspSettings}; const PROTOBUF_LANGUAGE_SERVER_NAME: &str = "protobuf-language-server"; struct ProtobufLanguageServerBinary {    path: String,    args: Option<Vec<String>>,} struct ProtobufExtension; impl ProtobufExtension {    fn language_server_binary(        &self,        _language_server_id: &zed::LanguageServerId,        worktree: &zed::Worktree,    ) -> Result<ProtobufLanguageServerBinary> {        let binary_settings = LspSettings::for_worktree("protobuf-language-server", worktree)            .ok()            .and_then(|lsp_settings| lsp_settings.binary);        let binary_args = binary_settings            .as_ref()            .and_then(|binary_settings| binary_settings.arguments.clone());         if let Some(path) = binary_settings.and_then(|binary_settings| binary_settings.path) {            return Ok(ProtobufLanguageServerBinary {                path,                args: binary_args,            });        }         if let Some(path) = worktree.which(PROTOBUF_LANGUAGE_SERVER_NAME) {            return Ok(ProtobufLanguageServerBinary {                path,                args: binary_args,            });        }         Err(format!("{PROTOBUF_LANGUAGE_SERVER_NAME} not found in PATH",))    }} impl zed::Extension for ProtobufExtension {    fn new() -> Self {        Self    }     fn language_server_command(        &mut self,        language_server_id: &zed_extension_api::LanguageServerId,        worktree: &zed_extension_api::Worktree,    ) -> zed_extension_api::Result<zed_extension_api::Command> {        let binary = self.language_server_binary(language_server_id, worktree)?;        Ok(zed::Command {            command: binary.path,            args: binary                .args                .unwrap_or_else(|| vec!["-logs".into(), "".into()]),            env: Default::default(),        })    }} zed::register_extension!(ProtobufExtension);