import * as vscode from 'vscode'; import * as lc from 'vscode-languageclient/node'; import * as ra from './lsp_ext'; import { Config } from './config'; import { createClient } from './client'; import { isRustEditor, RustEditor } from './util'; import { ServerStatusParams } from './lsp_ext'; export type Workspace = { kind: 'Workspace Folder'; } | { kind: 'Detached Files'; files: vscode.TextDocument[]; }; export class Ctx { private constructor( readonly config: Config, private readonly extCtx: vscode.ExtensionContext, readonly client: lc.LanguageClient, readonly serverPath: string, readonly statusBar: vscode.StatusBarItem, ) { } static async create( config: Config, extCtx: vscode.ExtensionContext, serverPath: string, workspace: Workspace, ): Promise { const client = createClient(serverPath, workspace, config.serverExtraEnv); const statusBar = vscode.window.createStatusBarItem(vscode.StatusBarAlignment.Left); extCtx.subscriptions.push(statusBar); statusBar.text = "rust-analyzer"; statusBar.tooltip = "ready"; statusBar.show(); const res = new Ctx(config, extCtx, client, serverPath, statusBar); res.pushCleanup(client.start()); await client.onReady(); client.onNotification(ra.serverStatus, (params) => res.setServerStatus(params)); return res; } get activeRustEditor(): RustEditor | undefined { const editor = vscode.window.activeTextEditor; return editor && isRustEditor(editor) ? editor : undefined; } get visibleRustEditors(): RustEditor[] { return vscode.window.visibleTextEditors.filter(isRustEditor); } registerCommand(name: string, factory: (ctx: Ctx) => Cmd) { const fullName = `rust-analyzer.${name}`; const cmd = factory(this); const d = vscode.commands.registerCommand(fullName, cmd); this.pushCleanup(d); } get globalState(): vscode.Memento { return this.extCtx.globalState; } get subscriptions(): Disposable[] { return this.extCtx.subscriptions; } setServerStatus(status: ServerStatusParams) { this.statusBar.tooltip = status.message ?? "Ready"; let icon = ""; switch (status.health) { case "ok": this.statusBar.color = undefined; break; case "warning": this.statusBar.tooltip += "\nClick to reload."; this.statusBar.command = "rust-analyzer.reloadWorkspace"; this.statusBar.color = new vscode.ThemeColor("notificationsWarningIcon.foreground"); icon = "$(warning) "; break; case "error": this.statusBar.tooltip += "\nClick to reload."; this.statusBar.command = "rust-analyzer.reloadWorkspace"; this.statusBar.color = new vscode.ThemeColor("notificationsErrorIcon.foreground"); icon = "$(error) "; break; } if (!status.quiescent) icon = "$(sync~spin) "; this.statusBar.text = `${icon} rust-analyzer`; } pushCleanup(d: Disposable) { this.extCtx.subscriptions.push(d); } } export interface Disposable { dispose(): void; } export type Cmd = (...args: any[]) => unknown;