initial commit of actions

github/codeql-action-v2/node_modules/ava/lib/worker/base.js

@@ -0,0 +1,239 @@
+import {createRequire} from 'node:module';
+import process from 'node:process';
+import {pathToFileURL} from 'node:url';
+import {workerData} from 'node:worker_threads';
+
+import setUpCurrentlyUnhandled from 'currently-unhandled';
+
+import {set as setChalk} from '../chalk.js';
+import nowAndTimers from '../now-and-timers.cjs';
+import providerManager from '../provider-manager.js';
+import Runner from '../runner.js';
+import serializeError from '../serialize-error.js';
+
+import channel from './channel.cjs';
+import dependencyTracking from './dependency-tracker.js';
+import lineNumberSelection from './line-numbers.js';
+import {set as setOptions} from './options.cjs';
+import {flags, refs, sharedWorkerTeardowns} from './state.cjs';
+import {isRunningInThread, isRunningInChildProcess} from './utils.cjs';
+
+const currentlyUnhandled = setUpCurrentlyUnhandled();
+let runner;
+
+// Override process.exit with an undetectable replacement
+// to report when it is called from a test (which it should never be).
+const {apply} = Reflect;
+const realExit = process.exit;
+
+async function exit(code, forceSync = false) {
+	dependencyTracking.flush();
+	const flushing = channel.flush();
+	if (!forceSync) {
+		await flushing;
+	}
+
+	apply(realExit, process, [code]);
+}
+
+const handleProcessExit = (fn, receiver, args) => {
+	const error = new Error('Unexpected process.exit()');
+	Error.captureStackTrace(error, handleProcessExit);
+	const {stack} = serializeError('', true, error);
+	channel.send({type: 'process-exit', stack});
+
+	// Make sure to extract the code only from `args` rather than e.g. `Array.prototype`.
+	// This level of paranoia is usually unwarranted, but we're dealing with test code
+	// that has already colored outside the lines.
+	const code = args.length > 0 ? args[0] : undefined;
+
+	// Force a synchronous exit as guaranteed by the real process.exit().
+	exit(code, true);
+};
+
+process.exit = new Proxy(realExit, {
+	apply: handleProcessExit,
+});
+
+const run = async options => {
+	setOptions(options);
+	setChalk(options.chalkOptions);
+
+	if (options.chalkOptions.level > 0) {
+		const {stdout, stderr} = process;
+		global.console = Object.assign(global.console, new console.Console({stdout, stderr, colorMode: true}));
+	}
+
+	let checkSelectedByLineNumbers;
+	try {
+		checkSelectedByLineNumbers = lineNumberSelection({
+			file: options.file,
+			lineNumbers: options.lineNumbers,
+		});
+	} catch (error) {
+		channel.send({type: 'line-number-selection-error', err: serializeError('Line number selection error', false, error, options.file)});
+		checkSelectedByLineNumbers = () => false;
+	}
+
+	runner = new Runner({
+		checkSelectedByLineNumbers,
+		experiments: options.experiments,
+		failFast: options.failFast,
+		failWithoutAssertions: options.failWithoutAssertions,
+		file: options.file,
+		match: options.match,
+		projectDir: options.projectDir,
+		recordNewSnapshots: options.recordNewSnapshots,
+		runOnlyExclusive: options.runOnlyExclusive,
+		serial: options.serial,
+		snapshotDir: options.snapshotDir,
+		updateSnapshots: options.updateSnapshots,
+	});
+
+	refs.runnerChain = runner.chain;
+
+	channel.peerFailed.then(() => {
+		runner.interrupt();
+	});
+
+	runner.on('dependency', dependencyTracking.track);
+	runner.on('stateChange', state => channel.send(state));
+
+	runner.on('error', error => {
+		channel.send({type: 'internal-error', err: serializeError('Internal runner error', false, error, runner.file)});
+		exit(1);
+	});
+
+	runner.on('finish', async () => {
+		try {
+			const {touchedFiles} = await runner.saveSnapshotState();
+			if (touchedFiles) {
+				channel.send({type: 'touched-files', files: touchedFiles});
+			}
+		} catch (error) {
+			channel.send({type: 'internal-error', err: serializeError('Internal runner error', false, error, runner.file)});
+			exit(1);
+			return;
+		}
+
+		try {
+			await Promise.all(sharedWorkerTeardowns.map(fn => fn()));
+		} catch (error) {
+			channel.send({type: 'uncaught-exception', err: serializeError('Shared worker teardown error', false, error, runner.file)});
+			exit(1);
+			return;
+		}
+
+		nowAndTimers.setImmediate(() => {
+			for (const rejection of currentlyUnhandled()) {
+				channel.send({type: 'unhandled-rejection', err: serializeError('Unhandled rejection', true, rejection.reason, runner.file)});
+			}
+
+			exit(0);
+		});
+	});
+
+	process.on('uncaughtException', error => {
+		channel.send({type: 'uncaught-exception', err: serializeError('Uncaught exception', true, error, runner.file)});
+		exit(1);
+	});
+
+	// Store value to prevent required modules from modifying it.
+	const testPath = options.file;
+
+	const extensionsToLoadAsModules = Object.entries(options.moduleTypes)
+		.filter(([, type]) => type === 'module')
+		.map(([extension]) => extension);
+
+	// Install before processing options.require, so if helpers are added to the
+	// require configuration the *compiled* helper will be loaded.
+	const {projectDir, providerStates = []} = options;
+	const providers = [];
+	await Promise.all(providerStates.map(async ({type, state}) => {
+		if (type === 'typescript') {
+			const provider = await providerManager.typescript(projectDir);
+			providers.push(provider.worker({extensionsToLoadAsModules, state}));
+		}
+	}));
+
+	const require = createRequire(import.meta.url);
+	const load = async ref => {
+		for (const provider of providers) {
+			if (provider.canLoad(ref)) {
+				return provider.load(ref, {requireFn: require});
+			}
+		}
+
+		for (const extension of extensionsToLoadAsModules) {
+			if (ref.endsWith(`.${extension}`)) {
+				return import(pathToFileURL(ref));
+			}
+		}
+
+		// We still support require() since it's more easily monkey-patched.
+		return require(ref);
+	};
+
+	try {
+		for await (const ref of (options.require || [])) {
+			await load(ref);
+		}
+
+		// Install dependency tracker after the require configuration has been evaluated
+		// to make sure we also track dependencies with custom require hooks
+		dependencyTracking.install(require.extensions, testPath);
+
+		if (options.debug && options.debug.port !== undefined && options.debug.host !== undefined) {
+			// If an inspector was active when the main process started, and is
+			// already active for the worker process, do not open a new one.
+			const {default: inspector} = await import('node:inspector');
+			if (!options.debug.active || inspector.url() === undefined) {
+				inspector.open(options.debug.port, options.debug.host, true);
+			}
+
+			if (options.debug.break) {
+				debugger; // eslint-disable-line no-debugger
+			}
+		}
+
+		await load(testPath);
+
+		if (flags.loadedMain) {
+			// Unreference the channel if the test file required AVA. This stops it
+			// from keeping the event loop busy, which means the `beforeExit` event can be
+			// used to detect when tests stall.
+			channel.unref();
+		} else {
+			channel.send({type: 'missing-ava-import'});
+			exit(1);
+		}
+	} catch (error) {
+		channel.send({type: 'uncaught-exception', err: serializeError('Uncaught exception', true, error, runner.file)});
+		exit(1);
+	}
+};
+
+const onError = error => {
+	// There shouldn't be any errors, but if there are we may not have managed
+	// to bootstrap enough code to serialize them. Re-throw and let the process
+	// crash.
+	setImmediate(() => {
+		throw error;
+	});
+};
+
+let options;
+if (isRunningInThread) {
+	channel.send({type: 'starting'}); // AVA won't terminate the worker thread until it's seen this message.
+	({options} = workerData);
+	delete workerData.options; // Don't allow user code access.
+} else if (isRunningInChildProcess) {
+	channel.send({type: 'ready-for-options'});
+	options = await channel.options;
+}
+
+try {
+	await run(options);
+} catch (error) {
+	onError(error);
+}

github/codeql-action-v2/node_modules/ava/lib/worker/channel.cjs

@@ -0,0 +1,290 @@
+'use strict';
+const events = require('node:events');
+const process = require('node:process');
+const {MessageChannel, threadId} = require('node:worker_threads');
+
+const timers = require('../now-and-timers.cjs');
+
+const {isRunningInChildProcess, isRunningInThread} = require('./utils.cjs');
+
+let pEvent = async (emitter, event, options) => {
+	// We need to import p-event, but import() is asynchronous. Buffer any events
+	// emitted in the meantime. Don't handle errors.
+	const buffer = [];
+	const addToBuffer = (...args) => buffer.push(args);
+	emitter.on(event, addToBuffer);
+
+	try {
+		({pEvent} = await import('p-event'));
+	} finally {
+		emitter.off(event, addToBuffer);
+	}
+
+	if (buffer.length === 0) {
+		return pEvent(emitter, event, options);
+	}
+
+	// Now replay buffered events.
+	const replayEmitter = new events.EventEmitter();
+	const promise = pEvent(replayEmitter, event, options);
+	for (const args of buffer) {
+		replayEmitter.emit(event, ...args);
+	}
+
+	const replay = (...args) => replayEmitter.emit(event, ...args);
+	emitter.on(event, replay);
+
+	try {
+		return await promise;
+	} finally {
+		emitter.off(event, replay);
+	}
+};
+
+const selectAvaMessage = type => message => message.ava && message.ava.type === type;
+
+class RefCounter {
+	constructor() {
+		this.count = 0;
+	}
+
+	refAndTest() {
+		return ++this.count === 1;
+	}
+
+	testAndUnref() {
+		return this.count > 0 && --this.count === 0;
+	}
+}
+
+class MessagePortHandle {
+	constructor(port) {
+		this.counter = new RefCounter();
+		this.unreferenceable = false;
+		this.channel = port;
+		// Referencing the port does not immediately prevent the thread from
+		// exiting. Use a timer to keep a reference for at least a second.
+		this.workaroundTimer = timers.setTimeout(() => {}, 1000).unref();
+	}
+
+	forceUnref() {
+		if (this.unreferenceable) {
+			return;
+		}
+
+		this.unreferenceable = true;
+		this.workaroundTimer.unref();
+		this.channel.unref();
+	}
+
+	ref() {
+		if (!this.unreferenceable && this.counter.refAndTest()) {
+			this.workaroundTimer.refresh().ref();
+			this.channel.ref();
+		}
+	}
+
+	unref() {
+		if (!this.unreferenceable && this.counter.testAndUnref()) {
+			this.workaroundTimer.unref();
+			this.channel.unref();
+		}
+	}
+
+	send(evt, transferList) {
+		this.channel.postMessage({ava: evt}, transferList);
+	}
+}
+
+class IpcHandle {
+	constructor(bufferedSend) {
+		this.counter = new RefCounter();
+		this.channel = process;
+		this.sendRaw = bufferedSend;
+	}
+
+	ref() {
+		if (this.counter.refAndTest()) {
+			process.channel.ref();
+		}
+	}
+
+	unref() {
+		if (this.counter.testAndUnref()) {
+			process.channel.unref();
+		}
+	}
+
+	send(evt) {
+		this.sendRaw({ava: evt});
+	}
+}
+
+let handle;
+if (isRunningInChildProcess) {
+	const {controlFlow} = require('../ipc-flow-control.cjs');
+	handle = new IpcHandle(controlFlow(process));
+} else if (isRunningInThread) {
+	const {parentPort} = require('node:worker_threads');
+	handle = new MessagePortHandle(parentPort);
+}
+
+// The attaching of message listeners will cause the port to be referenced by
+// Node.js. In order to keep track, explicitly reference before attaching.
+handle.ref();
+
+exports.options = pEvent(handle.channel, 'message', selectAvaMessage('options')).then(message => message.ava.options); // eslint-disable-line unicorn/prefer-top-level-await
+exports.peerFailed = pEvent(handle.channel, 'message', selectAvaMessage('peer-failed'));
+exports.send = handle.send.bind(handle);
+exports.unref = handle.unref.bind(handle);
+
+let pendingPings = Promise.resolve();
+async function flush() {
+	handle.ref();
+	const promise = pendingPings.then(async () => {
+		handle.send({type: 'ping'});
+		await pEvent(handle.channel, 'message', selectAvaMessage('pong'));
+		if (promise === pendingPings) {
+			handle.unref();
+		}
+	});
+	pendingPings = promise;
+	await promise;
+}
+
+exports.flush = flush;
+
+let channelCounter = 0;
+let messageCounter = 0;
+
+const channelEmitters = new Map();
+function createChannelEmitter(channelId) {
+	if (channelEmitters.size === 0) {
+		handle.channel.on('message', message => {
+			if (!message.ava) {
+				return;
+			}
+
+			const {channelId, type, ...payload} = message.ava;
+			if (type === 'shared-worker-error') {
+				const emitter = channelEmitters.get(channelId);
+				if (emitter !== undefined) {
+					emitter.emit(type, payload);
+				}
+			}
+		});
+	}
+
+	const emitter = new events.EventEmitter();
+	channelEmitters.set(channelId, emitter);
+	return [emitter, () => channelEmitters.delete(channelId)];
+}
+
+function registerSharedWorker(filename, initialData) {
+	const channelId = `${threadId}/channel/${++channelCounter}`;
+
+	const {port1: ourPort, port2: theirPort} = new MessageChannel();
+	const sharedWorkerHandle = new MessagePortHandle(ourPort);
+
+	const [channelEmitter, unsubscribe] = createChannelEmitter(channelId);
+
+	handle.send({
+		type: 'shared-worker-connect',
+		channelId,
+		filename,
+		initialData,
+		port: theirPort,
+	}, [theirPort]);
+
+	let currentlyAvailable = false;
+	let error = null;
+
+	// The attaching of message listeners will cause the port to be referenced by
+	// Node.js. In order to keep track, explicitly reference before attaching.
+	sharedWorkerHandle.ref();
+	const ready = pEvent(ourPort, 'message', ({type}) => type === 'ready').then(() => {
+		currentlyAvailable = error === null;
+	}).finally(() => {
+		// Once ready, it's up to user code to subscribe to messages, which (see
+		// below) causes us to reference the port.
+		sharedWorkerHandle.unref();
+	});
+
+	const messageEmitters = new Set();
+
+	// Errors are received over the test worker channel, not the message port
+	// dedicated to the shared worker.
+	pEvent(channelEmitter, 'shared-worker-error').then(() => {
+		unsubscribe();
+		sharedWorkerHandle.forceUnref();
+		error = new Error('The shared worker is no longer available');
+		currentlyAvailable = false;
+		for (const emitter of messageEmitters) {
+			emitter.emit('error', error);
+		}
+	});
+
+	ourPort.on('message', message => {
+		if (message.type === 'message') {
+			// Wait for a turn of the event loop, to allow new subscriptions to be set
+			// up in response to the previous message.
+			setImmediate(() => {
+				for (const emitter of messageEmitters) {
+					emitter.emit('message', message);
+				}
+			});
+		}
+	});
+
+	return {
+		forceUnref: () => sharedWorkerHandle.forceUnref(),
+		ready,
+		channel: {
+			available: ready,
+
+			get currentlyAvailable() {
+				return currentlyAvailable;
+			},
+
+			async * receive() {
+				if (error !== null) {
+					throw error;
+				}
+
+				const emitter = new events.EventEmitter();
+				messageEmitters.add(emitter);
+				try {
+					sharedWorkerHandle.ref();
+					for await (const [message] of events.on(emitter, 'message')) {
+						yield message;
+					}
+				} finally {
+					sharedWorkerHandle.unref();
+					messageEmitters.delete(emitter);
+				}
+			},
+
+			post(data, replyTo) {
+				if (error !== null) {
+					throw error;
+				}
+
+				if (!currentlyAvailable) {
+					throw new Error('Shared worker is not yet available');
+				}
+
+				const messageId = `${channelId}/message/${++messageCounter}`;
+				ourPort.postMessage({
+					type: 'message',
+					messageId,
+					replyTo,
+					data,
+				});
+
+				return messageId;
+			},
+		},
+	};
+}
+
+exports.registerSharedWorker = registerSharedWorker;

github/codeql-action-v2/node_modules/ava/lib/worker/dependency-tracker.js

@@ -0,0 +1,48 @@
+import process from 'node:process';
+
+import channel from './channel.cjs';
+
+const seenDependencies = new Set();
+let newDependencies = [];
+
+function flush() {
+	if (newDependencies.length === 0) {
+		return;
+	}
+
+	channel.send({type: 'dependencies', dependencies: newDependencies});
+	newDependencies = [];
+}
+
+function track(filename) {
+	if (seenDependencies.has(filename)) {
+		return;
+	}
+
+	if (newDependencies.length === 0) {
+		process.nextTick(flush);
+	}
+
+	seenDependencies.add(filename);
+	newDependencies.push(filename);
+}
+
+const tracker = {
+	flush,
+	track,
+	install(extensions, testPath) {
+		for (const ext of Object.keys(extensions)) {
+			const wrappedHandler = extensions[ext];
+
+			extensions[ext] = (module, filename) => {
+				if (filename !== testPath) {
+					track(filename);
+				}
+
+				wrappedHandler(module, filename);
+			};
+		}
+	},
+};
+
+export default tracker;

github/codeql-action-v2/node_modules/ava/lib/worker/guard-environment.cjs

@@ -0,0 +1,19 @@
+'use strict';
+const path = require('node:path');
+const process = require('node:process');
+
+const {isRunningInThread, isRunningInChildProcess} = require('./utils.cjs');
+
+// Check if the test is being run without AVA cli
+if (!isRunningInChildProcess && !isRunningInThread) {
+	if (process.argv[1]) {
+		const fp = path.relative('.', process.argv[1]);
+
+		console.log();
+		console.error(`Test files must be run with the AVA CLI:\n\n    $ ava ${fp}\n`);
+
+		process.exit(1); // eslint-disable-line unicorn/no-process-exit
+	} else {
+		throw new Error('The ’ava’ module can only be imported in test files');
+	}
+}

github/codeql-action-v2/node_modules/ava/lib/worker/line-numbers.js

@@ -0,0 +1,141 @@
+import * as fs from 'node:fs';
+import {createRequire, findSourceMap} from 'node:module';
+import {pathToFileURL} from 'node:url';
+
+import callsites from 'callsites';
+
+const require = createRequire(import.meta.url);
+
+function parse(file) {
+	// Avoid loading these until we actually need to select tests by line number.
+	const acorn = require('acorn');
+	const walk = require('acorn-walk');
+
+	const ast = acorn.parse(fs.readFileSync(file, 'utf8'), {
+		ecmaVersion: 'latest',
+		locations: true,
+		sourceType: 'module',
+	});
+
+	const locations = [];
+	walk.simple(ast, {
+		CallExpression(node) {
+			locations.push(node.loc);
+		},
+	});
+
+	// Walking is depth-first, but we want to sort these breadth-first.
+	locations.sort((a, b) => {
+		if (a.start.line === b.start.line) {
+			return a.start.column - b.start.column;
+		}
+
+		return a.start.line - b.start.line;
+	});
+
+	return locations;
+}
+
+function findTest(locations, declaration) {
+	// Find all calls that span the test declaration.
+	const spans = locations.filter(loc => {
+		if (loc.start.line > declaration.line || loc.end.line < declaration.line) {
+			return false;
+		}
+
+		if (loc.start.line === declaration.line && loc.start.column > declaration.column) {
+			return false;
+		}
+
+		if (loc.end.line === declaration.line && loc.end.column < declaration.column) {
+			return false;
+		}
+
+		return true;
+	});
+
+	// Locations should be sorted by source order, so the last span must be the test.
+	return spans.pop();
+}
+
+const range = (start, end) => Array.from({length: end - start + 1}).fill(start).map((element, index) => element + index);
+
+const translate = (sourceMap, pos) => {
+	if (sourceMap === null) {
+		return pos;
+	}
+
+	const entry = sourceMap.findEntry(pos.line - 1, pos.column); // Source maps are 0-based
+
+	// When used with ts-node/register, we've seen entries without original values. Return the
+	// original position.
+	if (entry.originalLine === undefined || entry.originalColumn === undefined) {
+		return pos;
+	}
+
+	return {
+		line: entry.originalLine + 1, // Readjust for Acorn.
+		column: entry.originalColumn,
+	};
+};
+
+export default function lineNumberSelection({file, lineNumbers = []}) {
+	if (lineNumbers.length === 0) {
+		return undefined;
+	}
+
+	const selected = new Set(lineNumbers);
+
+	let locations = parse(file);
+	let lookedForSourceMap = false;
+	let sourceMap = null;
+
+	return () => {
+		if (!lookedForSourceMap) {
+			lookedForSourceMap = true;
+
+			// The returned function is called *after* the file has been loaded.
+			// Source maps are not available before then.
+			sourceMap = findSourceMap(file);
+
+			if (sourceMap === undefined) {
+				// Prior to Node.js 18.8.0, the value when a source map could not be found was `undefined`.
+				// This changed to `null` in <https://github.com/nodejs/node/pull/43875>.
+				sourceMap = null;
+			}
+
+			if (sourceMap !== null) {
+				locations = locations.map(({start, end}) => ({
+					start: translate(sourceMap, start),
+					end: translate(sourceMap, end),
+				}));
+			}
+		}
+
+		// Assume this is called from a test declaration, which is located in the file.
+		// If not… don't select the test!
+		const callSite = callsites().find(callSite => {
+			const current = callSite.getFileName();
+			if (file.startsWith('file://')) {
+				return current.startsWith('file://') ? file === current : file === pathToFileURL(current).toString();
+			}
+
+			return current.startsWith('file://') ? pathToFileURL(file).toString() === current : file === current;
+		});
+		if (!callSite) {
+			return false;
+		}
+
+		const start = translate(sourceMap, {
+			line: callSite.getLineNumber(), // 1-based
+			column: callSite.getColumnNumber() - 1, // Comes out as 1-based, Acorn wants 0-based
+		});
+
+		const test = findTest(locations, start);
+		if (!test) {
+			return false;
+		}
+
+		return range(test.start.line, test.end.line).some(line => selected.has(line));
+	};
+}

github/codeql-action-v2/node_modules/ava/lib/worker/main.cjs

@@ -0,0 +1,12 @@
+'use strict';
+require('./guard-environment.cjs'); // eslint-disable-line import/no-unassigned-import
+
+const assert = require('node:assert');
+
+const {flags, refs} = require('./state.cjs');
+
+assert(refs.runnerChain);
+
+flags.loadedMain = true;
+
+module.exports = refs.runnerChain;

github/codeql-action-v2/node_modules/ava/lib/worker/options.cjs

@@ -0,0 +1,17 @@
+'use strict';
+let options = null;
+exports.get = () => {
+	if (!options) {
+		throw new Error('Options have not yet been set');
+	}
+
+	return options;
+};
+
+exports.set = newOptions => {
+	if (options) {
+		throw new Error('Options have already been set');
+	}
+
+	options = newOptions;
+};

github/codeql-action-v2/node_modules/ava/lib/worker/plugin.cjs

@@ -0,0 +1,130 @@
+const pkg = require('../../package.json');
+
+const {registerSharedWorker: register} = require('./channel.cjs');
+const options = require('./options.cjs');
+const {sharedWorkerTeardowns, waitForReady} = require('./state.cjs');
+
+require('./guard-environment.cjs'); // eslint-disable-line import/no-unassigned-import
+
+const workers = new Map();
+const workerTeardownFns = new WeakMap();
+
+function createSharedWorker(filename, initialData, teardown) {
+	const {channel, forceUnref, ready} = register(filename, initialData, teardown);
+	waitForReady.push(ready);
+	sharedWorkerTeardowns.push(async () => {
+		try {
+			await teardown();
+		} finally {
+			forceUnref();
+		}
+	});
+
+	class ReceivedMessage {
+		constructor(id, data) {
+			this.id = id;
+			this.data = data;
+		}
+
+		reply(data) {
+			return publishMessage(data, this.id);
+		}
+	}
+
+	// Ensure that, no matter how often it's received, we have a stable message
+	// object.
+	const messageCache = new WeakMap();
+	async function * receiveMessages(replyTo) {
+		for await (const evt of channel.receive()) {
+			if (replyTo === undefined && evt.replyTo !== undefined) {
+				continue;
+			}
+
+			if (replyTo !== undefined && evt.replyTo !== replyTo) {
+				continue;
+			}
+
+			let message = messageCache.get(evt);
+			if (message === undefined) {
+				message = new ReceivedMessage(evt.messageId, evt.data);
+				messageCache.set(evt, message);
+			}
+
+			yield message;
+		}
+	}
+
+	function publishMessage(data, replyTo) {
+		const id = channel.post(data, replyTo);
+
+		return {
+			id,
+			async * replies() {
+				yield * receiveMessages(id);
+			},
+		};
+	}
+
+	return {
+		available: channel.available,
+		protocol: 'ava-4',
+
+		get currentlyAvailable() {
+			return channel.currentlyAvailable;
+		},
+
+		publish(data) {
+			return publishMessage(data);
+		},
+
+		async * subscribe() {
+			yield * receiveMessages();
+		},
+	};
+}
+
+function registerSharedWorker({
+	filename,
+	initialData,
+	supportedProtocols,
+	teardown,
+}) {
+	const options_ = options.get();
+
+	if (!options_.workerThreads) {
+		throw new Error('Shared workers can be used only when worker threads are enabled');
+	}
+
+	if (!supportedProtocols.includes('ava-4')) {
+		throw new Error(`This version of AVA (${pkg.version}) does not support any of the desired shared worker protocols: ${supportedProtocols.join(',')}`);
+	}
+
+	filename = String(filename); // Allow URL instances.
+
+	let worker = workers.get(filename);
+	if (worker === undefined) {
+		worker = createSharedWorker(filename, initialData, async () => {
+			// Run possibly asynchronous teardown functions serially, in reverse
+			// order. Any error will crash the worker.
+			const teardownFns = workerTeardownFns.get(worker);
+			if (teardownFns !== undefined) {
+				for await (const fn of [...teardownFns].reverse()) {
+					await fn();
+				}
+			}
+		});
+		workers.set(filename, worker);
+	}
+
+	if (teardown !== undefined) {
+		if (workerTeardownFns.has(worker)) {
+			workerTeardownFns.get(worker).push(teardown);
+		} else {
+			workerTeardownFns.set(worker, [teardown]);
+		}
+	}
+
+	return worker;
+}
+
+exports.registerSharedWorker = registerSharedWorker;

github/codeql-action-v2/node_modules/ava/lib/worker/state.cjs

@@ -0,0 +1,5 @@
+'use strict';
+exports.flags = {loadedMain: false};
+exports.refs = {runnerChain: null};
+exports.sharedWorkerTeardowns = [];
+exports.waitForReady = [];

github/codeql-action-v2/node_modules/ava/lib/worker/utils.cjs

@@ -0,0 +1,6 @@
+'use strict';
+const process = require('node:process');
+const {isMainThread} = require('node:worker_threads');
+
+exports.isRunningInThread = isMainThread === false;
+exports.isRunningInChildProcess = typeof process.send === 'function';