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import * as vscode from 'vscode';
import * as commands from './commands';
import { activateInlayHints } from './inlay_hints';
import { activateStatusDisplay } from './status_display';
import { Ctx } from './ctx';
import { activateHighlighting } from './highlighting';
import { ensureServerBinary } from './installation/server';
import { Config } from './config';
import { log } from './util';
import { ensureProperExtensionVersion } from './installation/extension';
import { PersistentState } from './persistent_state';
let ctx: Ctx | undefined;
export async function activate(context: vscode.ExtensionContext) {
// Register a "dumb" onEnter command for the case where server fails to
// start.
//
// FIXME: refactor command registration code such that commands are
// **always** registered, even if the server does not start. Use API like
// this perhaps?
//
// ```TypeScript
// registerCommand(
// factory: (Ctx) => ((Ctx) => any),
// fallback: () => any = () => vscode.window.showErrorMessage(
// "rust-analyzer is not available"
// ),
// )
const defaultOnEnter = vscode.commands.registerCommand(
'rust-analyzer.onEnter',
() => vscode.commands.executeCommand('default:type', { text: '\n' }),
);
context.subscriptions.push(defaultOnEnter);
const config = new Config(context);
const state = new PersistentState(context);
vscode.workspace.onDidChangeConfiguration(() => ensureProperExtensionVersion(config, state).catch(log.error));
// Don't await the user response here, otherwise we will block the lsp server bootstrap
void ensureProperExtensionVersion(config, state).catch(log.error);
const serverPath = await ensureServerBinary(config, state);
if (serverPath == null) {
throw new Error(
"Rust Analyzer Language Server is not available. " +
"Please, ensure its [proper installation](https://rust-analyzer.github.io/manual.html#installation)."
);
}
// Note: we try to start the server before we activate type hints so that it
// registers its `onDidChangeDocument` handler before us.
//
// This a horribly, horribly wrong way to deal with this problem.
ctx = await Ctx.create(config, state, context, serverPath);
// Commands which invokes manually via command palette, shortcut, etc.
ctx.registerCommand('reload', (ctx) => {
return async () => {
vscode.window.showInformationMessage('Reloading rust-analyzer...');
// @DanTup maneuver
// https://github.com/microsoft/vscode/issues/45774#issuecomment-373423895
await deactivate();
for (const sub of ctx.subscriptions) {
try {
sub.dispose();
} catch (e) {
log.error(e);
}
}
await activate(context);
};
});
ctx.registerCommand('analyzerStatus', commands.analyzerStatus);
ctx.registerCommand('collectGarbage', commands.collectGarbage);
ctx.registerCommand('matchingBrace', commands.matchingBrace);
ctx.registerCommand('joinLines', commands.joinLines);
ctx.registerCommand('parentModule', commands.parentModule);
ctx.registerCommand('syntaxTree', commands.syntaxTree);
ctx.registerCommand('expandMacro', commands.expandMacro);
ctx.registerCommand('run', commands.run);
defaultOnEnter.dispose();
ctx.registerCommand('onEnter', commands.onEnter);
ctx.registerCommand('ssr', commands.ssr);
ctx.registerCommand('serverVersion', commands.serverVersion);
// Internal commands which are invoked by the server.
ctx.registerCommand('runSingle', commands.runSingle);
ctx.registerCommand('debugSingle', commands.debugSingle);
ctx.registerCommand('showReferences', commands.showReferences);
ctx.registerCommand('applySourceChange', commands.applySourceChange);
ctx.registerCommand('selectAndApplySourceChange', commands.selectAndApplySourceChange);
activateStatusDisplay(ctx);
if (!ctx.config.highlightingSemanticTokens) {
activateHighlighting(ctx);
}
activateInlayHints(ctx);
}
export async function deactivate() {
await ctx?.client?.stop();
ctx = undefined;
}
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