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Danila Volkov
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copy all from vscode-func
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‎.vscode/launch.json

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{
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// Use IntelliSense to learn about possible attributes.
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// Hover to view descriptions of existing attributes.
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// For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
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"version": "0.2.0",
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"configurations": [
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{
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"name": "Attach",
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"port": 6009,
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"request": "attach",
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"skipFiles": [
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"<node_internals>/**"
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],
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"type": "pwa-node"
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},
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{
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"args": [
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"--extensionDevelopmentPath=${workspaceFolder}"
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],
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"name": "Launch Extension",
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"outFiles": [
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"${workspaceFolder}/out/**/*.js"
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],
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"request": "launch",
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"type": "pwa-extensionHost"
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}
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]
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}

‎.vscodeignore

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**/*
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# Include only this files
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!dist/
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!LICENSE
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!CHANGELOG.md
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!package.json
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!README.md
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!language-configuration.json
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!syntaxes/
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!snippets/
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!logo.png

‎client/package.json

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{
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"name": "client",
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"description": "VSCode client part of the extension",
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"private": true,
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"engines": {
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"vscode": "^1.63.0"
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},
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"dependencies": {
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"vscode-languageclient": "^8.0.2",
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"vscode-uri": "^3.0.7"
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},
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"devDependencies": {
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"@types/node": "^17.0.23",
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"@types/vscode": "^1.63.0"
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}
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}

‎client/src/extension.ts

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import * as vscode from 'vscode';
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import { Utils } from 'vscode-uri';
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import * as path from 'path';
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import { workspace } from 'vscode';
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import {
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LanguageClient,
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LanguageClientOptions,
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RevealOutputChannelOn,
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ServerOptions,
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TransportKind
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} from 'vscode-languageclient/node';
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import { TextEncoder } from 'util';
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let client: LanguageClient;
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export function activate(context: vscode.ExtensionContext) {
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vscode.commands.registerCommand('func.copyToClipboard', (str: string) => {
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vscode.env.clipboard.writeText(str);
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vscode.window.showInformationMessage(`Copied ${str} to clipboard`);
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})
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startServer(context)
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}
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export function deactivate(): Thenable<void> | undefined {
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if (!client) {
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return undefined;
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}
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return client.stop();
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}
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async function startServer(context: vscode.ExtensionContext): Promise<vscode.Disposable> {
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const disposables: vscode.Disposable[] = [];
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const databaseName = context.workspaceState.get('dbName', `func_${Math.random().toString(32).slice(2)}`);
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context.workspaceState.update('dbName', databaseName);
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const clientOptions: LanguageClientOptions = {
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outputChannelName: 'FunC',
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revealOutputChannelOn: RevealOutputChannelOn.Never,
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documentSelector: [{ scheme: 'file', language: 'func' }],
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synchronize: {
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fileEvents: workspace.createFileSystemWatcher('**/.func.yml')
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},
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initializationOptions: {
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treeSitterWasmUri: Utils.joinPath(context.extensionUri, './dist/tree-sitter.wasm').fsPath,
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langUri: Utils.joinPath(context.extensionUri, './dist/tree-sitter-func.wasm').fsPath,
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databaseName
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}
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};
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const serverModule = context.asAbsolutePath(
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path.join('dist', 'server.js')
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);
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// pass initial configuration to env
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const extConfig = vscode.workspace.getConfiguration('func');
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const options = {
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env: {
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FUNC_SYMBOL_DISCOVERY: extConfig.get('symbolDiscovery'),
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FUNC_AUTOCOMPLETE_ADD_PARENTHESES: extConfig.get('autocompleteAddParentheses'),
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FUNC_EXPRERIMENTAL_DIAGNOSTICS: extConfig.get('experimentalDiagnostics'),
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}
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}
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const debugOptions = { ...options, execArgv: ['--nolazy', '--inspect=6009'] };
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const serverOptions: ServerOptions = {
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run: {
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module: serverModule,
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transport: TransportKind.ipc,
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options: options
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},
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debug: {
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module: serverModule,
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transport: TransportKind.ipc,
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options: debugOptions
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}
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};
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client = new LanguageClient(
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'funcServer',
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'FunC Language Server',
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serverOptions,
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clientOptions
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);
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await client.start();
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// serve fileRead request
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client.onRequest('file/read', async raw => {
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const uri = vscode.Uri.parse(raw);
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if (uri.scheme === 'vscode-notebook-cell') {
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// we are dealing with a notebook
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try {
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const doc = await vscode.workspace.openTextDocument(uri);
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return new TextEncoder().encode(doc.getText());
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} catch (err) {
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console.warn(err);
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return { type: 'not-found' };
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}
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}
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if (vscode.workspace.fs.isWritableFileSystem(uri.scheme) === undefined) {
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// undefined means we don't know anything about these uris
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return { type: 'not-found' };
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}
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let data: Uint8Array;
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try {
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const stat = await vscode.workspace.fs.stat(uri);
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if (stat.size > 1024 ** 2) {
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console.warn(`IGNORING "${uri.toString()}" because it is too large (${stat.size}bytes)`);
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data = Buffer.from(new Uint8Array());
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} else {
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data = await vscode.workspace.fs.readFile(uri);
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}
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return data;
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} catch (err) {
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if (err instanceof vscode.FileSystemError) {
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return { type: 'not-found' };
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}
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// graceful
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console.warn(err);
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return { type: 'not-found' };
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}
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});
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client.onRequest('completion/matching-files', async (raw: { pathPrefix: string, uri: string }) => {
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const uri = vscode.Uri.parse(raw.uri);
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let searchDirName = Utils.joinPath(uri, '..', raw.pathPrefix, (raw.pathPrefix.trim().length === 0 || raw.pathPrefix.endsWith(path.sep)) ? '' : '..');
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let toSearch = raw.pathPrefix.split(path.sep).pop() ?? '';
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try {
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let files = await vscode.workspace.fs.readDirectory(searchDirName);
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return files
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.filter(([path, type]) => {
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if (path === toSearch) return false;
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return path.startsWith(toSearch) && (type !== vscode.FileType.File || path.endsWith('.fc'));
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})
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.map(([segment, type]) => {
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if (type === vscode.FileType.Directory) {
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return segment + path.sep;
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}
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return segment;
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});
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} catch {
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return [];
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}
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});
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// notify at configuration change
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vscode.workspace.onDidChangeConfiguration((change) => {
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if (change.affectsConfiguration('func')) {
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client.sendNotification('configuration/change', {
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symbolDiscovery: vscode.workspace.getConfiguration('func').get('symbolDiscovery'),
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autocompleteAddParentheses: vscode.workspace.getConfiguration('func').get('autocompleteAddParentheses'),
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experimentalDiagnostics: vscode.workspace.getConfiguration('func').get('experimentalDiagnostics'),
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});
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}
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})
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const langPattern = `**/*.fc`;
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const watcher = vscode.workspace.createFileSystemWatcher(langPattern);
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disposables.push(watcher);
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// file discover and watching. in addition to text documents we annouce and provide
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// all matching files
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// workaround for https://github.com/microsoft/vscode/issues/48674
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const exclude = `{${[
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...Object.keys(vscode.workspace.getConfiguration('search', null).get('exclude') ?? {}),
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...Object.keys(vscode.workspace.getConfiguration('files', null).get('exclude') ?? {})
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].join(',')}}`;
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let size: number = Math.max(0, vscode.workspace.getConfiguration('func').get<number>('symbolIndexSize', 500));
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const init = async () => {
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let all = await vscode.workspace.findFiles(langPattern, exclude);
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const uris = all.slice(0, size);
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console.info(`USING ${uris.length} of ${all.length} files for ${langPattern}`);
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await client.sendRequest('queue/init', uris.map(String));
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};
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const initCancel = new Promise<void>(resolve => disposables.push(new vscode.Disposable(resolve)));
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vscode.window.withProgress({ location: vscode.ProgressLocation.Window, title: '[FunC] Building Index...' }, () => Promise.race([init(), initCancel]));
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disposables.push(watcher.onDidCreate(uri => {
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client.sendNotification('queue/add', uri.toString());
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}));
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disposables.push(watcher.onDidDelete(uri => {
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client.sendNotification('queue/remove', uri.toString());
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client.sendNotification('file-cache/remove', uri.toString());
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}));
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disposables.push(watcher.onDidChange(uri => {
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client.sendNotification('queue/add', uri.toString());
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client.sendNotification('file-cache/remove', uri.toString());
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}));
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return new vscode.Disposable(() => disposables.forEach(d => d.dispose()));
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}

‎client/tsconfig.json

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{
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"compilerOptions": {
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"module": "commonjs",
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"target": "es2020",
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"lib": ["es2020"],
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"sourceMap": true
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},
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"include": ["src"],
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"exclude": ["node_modules", ".vscode-test"]
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}

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