import * as vscode from 'vscode'; import * as lc from 'vscode-languageclient'; import * as ra from './lsp_ext'; import { Config } from './config'; import { createClient } from './client'; import { isRustEditor, RustEditor } from './util'; import { Status } from './lsp_ext'; 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, cwd: string, ): Promise<Ctx> { const client = createClient(serverPath, cwd); 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.status, (params) => res.setStatus(params.status)); 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.${name}`; const cmd = factory(this); const d = vscode.commands.registerCommand(fullName, cmd); this.pushCleanup(d); } get globalState(): vscode.Memento { return this.extCtx.globalState; } get subscriptions(): Disposable[] { return this.extCtx.subscriptions; } setStatus(status: Status) { switch (status) { case "loading": this.statusBar.text = "$(sync~spin) rust-analyzer"; this.statusBar.tooltip = "Loading the project"; this.statusBar.command = undefined; this.statusBar.color = undefined; break; case "ready": this.statusBar.text = "rust-analyzer"; this.statusBar.tooltip = "Ready"; this.statusBar.command = undefined; this.statusBar.color = undefined; break; case "invalid": this.statusBar.text = "$(error) rust-analyzer"; this.statusBar.tooltip = "Failed to load the project"; this.statusBar.command = undefined; this.statusBar.color = new vscode.ThemeColor("notificationsErrorIcon.foreground"); break; case "needsReload": this.statusBar.text = "$(warning) rust-analyzer"; this.statusBar.tooltip = "Click to reload"; this.statusBar.command = "rust-analyzer.reloadWorkspace"; this.statusBar.color = new vscode.ThemeColor("notificationsWarningIcon.foreground"); break; } } pushCleanup(d: Disposable) { this.extCtx.subscriptions.push(d); } } export interface Disposable { dispose(): void; } export type Cmd = (...args: any[]) => unknown;