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import { __rest } from "tslib";
import { createHash } from 'node:crypto';
import fs from 'node:fs';
import path from 'node:path';
import { fileURLToPath, pathToFileURL } from 'node:url';
import { MessageChannel, Worker, receiveMessageOnPort, } from 'node:worker_threads';
import { tryExtensions, findUp, cjsRequire, isPkgAvailable } from '@pkgr/core';
import { compareNodeVersion } from './common.js';
import { DEFAULT_EXEC_ARGV, DEFAULT_GLOBAL_SHIMS, DEFAULT_GLOBAL_SHIMS_PRESET, DEFAULT_TIMEOUT, DEFAULT_TS_RUNNER, DEFAULT_TYPES_NODE_VERSION, IMPORT_FLAG, IMPORT_FLAG_SUPPORTED, INT32_BYTES, LOADER_FLAG, LOADER_FLAGS, MODULE_REGISTER_SUPPORTED, MTS_SUPPORTED, NO_STRIP_TYPES, NO_STRIP_TYPES_FLAG, NODE_OPTIONS, REQUIRE_ABBR_FLAG, REQUIRE_FLAGS, STRIP_TYPES_FLAG, STRIP_TYPES_NODE_VERSION, TRANSFORM_TYPES_FLAG, TRANSFORM_TYPES_NODE_VERSION, TS_ESM_PARTIAL_SUPPORTED, TsRunner, } from './constants.js';
export const isFile = (path) => {
var _a;
try {
return !!((_a = fs.statSync(path, { throwIfNoEntry: false })) === null || _a === void 0 ? void 0 : _a.isFile());
}
catch (_b) {
return false;
}
};
export const dataUrl = (code) => new URL(`data:text/javascript,${encodeURIComponent(code)}`);
export const hasRequireFlag = (execArgv) => execArgv.some(execArg => REQUIRE_FLAGS.has(execArg));
export const hasImportFlag = (execArgv) => execArgv.includes(IMPORT_FLAG);
export const hasLoaderFlag = (execArgv) => execArgv.some(execArg => LOADER_FLAGS.has(execArg));
export const setupTsRunner = (workerPath, { execArgv = DEFAULT_EXEC_ARGV, tsRunner, } = {}) => {
let ext = path.extname(workerPath);
if (!/([/\\])node_modules\1/.test(workerPath) &&
(!ext || /^\.[cm]?js$/.test(ext))) {
const workPathWithoutExt = ext
? workerPath.slice(0, -ext.length)
: workerPath;
let extensions;
switch (ext) {
case '.cjs': {
extensions = ['.cts', '.cjs'];
break;
}
case '.mjs': {
extensions = ['.mts', '.mjs'];
break;
}
default: {
extensions = ['.ts', '.js'];
break;
}
}
const found = tryExtensions(workPathWithoutExt, extensions);
let differentExt;
if (found && (!ext || (differentExt = found !== workPathWithoutExt))) {
workerPath = found;
if (differentExt) {
ext = path.extname(workerPath);
}
}
}
const isTs = /\.[cm]?ts$/.test(workerPath);
let jsUseEsm = ext === '.mjs';
let tsUseEsm = ext === '.mts';
if (isTs) {
if (!tsUseEsm && ext !== '.cts') {
const pkg = findUp(workerPath);
if (pkg) {
tsUseEsm = cjsRequire(pkg).type === 'module';
}
}
const stripTypesIndex = execArgv.indexOf(STRIP_TYPES_FLAG);
const transformTypesIndex = execArgv.indexOf(TRANSFORM_TYPES_FLAG);
const noStripTypesIndex = execArgv.indexOf(NO_STRIP_TYPES_FLAG);
const execArgvNoStripTypes = noStripTypesIndex > stripTypesIndex ||
noStripTypesIndex > transformTypesIndex;
const noStripTypes = execArgvNoStripTypes ||
(stripTypesIndex === -1 && transformTypesIndex === -1 && NO_STRIP_TYPES);
if (tsRunner == null) {
if (process.versions.bun) {
tsRunner = TsRunner.Bun;
}
else if (!noStripTypes &&
compareNodeVersion(STRIP_TYPES_NODE_VERSION) >= 0) {
tsRunner = TsRunner.Node;
}
else if (isPkgAvailable(TsRunner.TsNode)) {
tsRunner = TsRunner.TsNode;
}
}
switch (tsRunner) {
case TsRunner.Bun: {
break;
}
case TsRunner.Node: {
if (compareNodeVersion(STRIP_TYPES_NODE_VERSION) < 0) {
throw new Error('type stripping is not supported in this node version');
}
if (noStripTypes) {
throw new Error('type stripping is disabled explicitly');
}
if (compareNodeVersion(DEFAULT_TYPES_NODE_VERSION) >= 0) {
break;
}
if (compareNodeVersion(TRANSFORM_TYPES_NODE_VERSION) >= 0 &&
!execArgv.includes(TRANSFORM_TYPES_FLAG)) {
execArgv = [TRANSFORM_TYPES_FLAG, ...execArgv];
}
else if (compareNodeVersion(STRIP_TYPES_NODE_VERSION) >= 0 &&
!execArgv.includes(STRIP_TYPES_FLAG)) {
execArgv = [STRIP_TYPES_FLAG, ...execArgv];
}
break;
}
case TsRunner.TsNode: {
if (tsUseEsm) {
if (!execArgv.includes(LOADER_FLAG)) {
execArgv = [LOADER_FLAG, `${TsRunner.TsNode}/esm`, ...execArgv];
}
}
else if (!hasRequireFlag(execArgv)) {
execArgv = [
REQUIRE_ABBR_FLAG,
`${TsRunner.TsNode}/register`,
...execArgv,
];
}
break;
}
case TsRunner.EsbuildRegister: {
if (tsUseEsm) {
if (!hasLoaderFlag(execArgv)) {
execArgv = [
LOADER_FLAG,
`${TsRunner.EsbuildRegister}/loader`,
...execArgv,
];
}
}
else if (!hasRequireFlag(execArgv)) {
execArgv = [REQUIRE_ABBR_FLAG, TsRunner.EsbuildRegister, ...execArgv];
}
break;
}
case TsRunner.EsbuildRunner: {
if (!hasRequireFlag(execArgv)) {
execArgv = [
REQUIRE_ABBR_FLAG,
`${TsRunner.EsbuildRunner}/register`,
...execArgv,
];
}
break;
}
case TsRunner.OXC: {
if (!execArgv.includes(IMPORT_FLAG)) {
execArgv = [
IMPORT_FLAG,
`@${TsRunner.OXC}-node/core/register`,
...execArgv,
];
}
break;
}
case TsRunner.SWC: {
if (tsUseEsm) {
if (IMPORT_FLAG_SUPPORTED) {
if (!hasImportFlag(execArgv)) {
execArgv = [
IMPORT_FLAG,
`@${TsRunner.SWC}-node/register/esm-register`,
...execArgv,
];
}
}
else if (!hasLoaderFlag(execArgv)) {
execArgv = [
LOADER_FLAG,
`@${TsRunner.SWC}-node/register/esm`,
...execArgv,
];
}
}
else if (!hasRequireFlag(execArgv)) {
execArgv = [
REQUIRE_ABBR_FLAG,
`@${TsRunner.SWC}-node/register`,
...execArgv,
];
}
break;
}
case TsRunner.TSX: {
if (IMPORT_FLAG_SUPPORTED) {
if (!execArgv.includes(IMPORT_FLAG)) {
execArgv = [IMPORT_FLAG, TsRunner.TSX, ...execArgv];
}
}
else if (!execArgv.includes(LOADER_FLAG)) {
execArgv = [LOADER_FLAG, TsRunner.TSX, ...execArgv];
}
break;
}
default: {
throw new Error(`Unknown ts runner: ${String(tsRunner)}`);
}
}
}
else if (!jsUseEsm && ext !== '.cjs') {
const pkg = findUp(workerPath);
if (pkg) {
jsUseEsm = cjsRequire(pkg).type === 'module';
}
}
let resolvedPnpLoaderPath;
if (process.versions.pnp) {
let pnpApiPath;
try {
pnpApiPath = cjsRequire.resolve('pnpapi');
}
catch (_a) { }
if (pnpApiPath &&
!NODE_OPTIONS.some((option, index) => REQUIRE_FLAGS.has(option) &&
pnpApiPath === cjsRequire.resolve(NODE_OPTIONS[index + 1])) &&
!execArgv.includes(pnpApiPath)) {
execArgv = [REQUIRE_ABBR_FLAG, pnpApiPath, ...execArgv];
const pnpLoaderPath = path.resolve(pnpApiPath, '../.pnp.loader.mjs');
if (isFile(pnpLoaderPath)) {
resolvedPnpLoaderPath = pathToFileURL(pnpLoaderPath).href;
if (!MODULE_REGISTER_SUPPORTED) {
execArgv = [LOADER_FLAG, resolvedPnpLoaderPath, ...execArgv];
}
}
}
}
return {
ext,
isTs,
jsUseEsm,
tsRunner,
tsUseEsm,
workerPath,
pnpLoaderPath: resolvedPnpLoaderPath,
execArgv,
};
};
export const md5Hash = (text) => createHash('md5').update(text).digest('hex');
export const encodeImportModule = (moduleNameOrGlobalShim, type = 'import') => {
const { moduleName, globalName, named, conditional } = typeof moduleNameOrGlobalShim === 'string'
? { moduleName: moduleNameOrGlobalShim }
: moduleNameOrGlobalShim;
const importStatement = type === 'import'
? `import${globalName
? ' ' +
(named === null
? '* as ' + globalName
: (named === null || named === void 0 ? void 0 : named.trim())
? `{${named}}`
: globalName) +
' from'
: ''} '${path.isAbsolute(moduleName)
? String(pathToFileURL(moduleName))
: moduleName}'`
: `${globalName
? 'const ' + ((named === null || named === void 0 ? void 0 : named.trim()) ? `{${named}}` : globalName) + '='
: ''}require('${moduleName
.replace(/\\/g, '\\\\')}')`;
if (!globalName) {
return importStatement;
}
const overrideStatement = `globalThis.${globalName}=${(named === null || named === void 0 ? void 0 : named.trim()) ? named : globalName}`;
return (importStatement +
(conditional === false
? `;${overrideStatement}`
: `;if(!globalThis.${globalName})${overrideStatement}`));
};
export const _generateGlobals = (globalShims, type) => globalShims.reduce((acc, shim) => `${acc}${acc ? ';' : ''}${encodeImportModule(shim, type)}`, '');
let globalsCache;
let tmpdir;
const _dirname = typeof __dirname === 'undefined'
? path.dirname(fileURLToPath(import.meta.url))
: __dirname;
export const generateGlobals = (workerPath, globalShims, type = 'import') => {
if (globalShims.length === 0) {
return '';
}
globalsCache !== null && globalsCache !== void 0 ? globalsCache : (globalsCache = new Map());
const cached = globalsCache.get(workerPath);
if (cached) {
const [content, filepath] = cached;
if ((type === 'require' && !filepath) ||
(type === 'import' && filepath && isFile(filepath))) {
return content;
}
}
const globals = _generateGlobals(globalShims, type);
let content = globals;
let filepath;
if (type === 'import') {
if (!tmpdir) {
tmpdir = path.resolve(findUp(_dirname), '../node_modules/.synckit');
}
fs.mkdirSync(tmpdir, { recursive: true });
filepath = path.resolve(tmpdir, md5Hash(workerPath) + '.mjs');
content = encodeImportModule(filepath);
fs.writeFileSync(filepath, globals);
}
globalsCache.set(workerPath, [content, filepath]);
return content;
};
export function extractProperties(object) {
if (object && typeof object === 'object') {
const properties = {};
for (const key in object) {
properties[key] = object[key];
}
return properties;
}
}
let sharedBuffer;
let sharedBufferView;
export function startWorkerThread(workerPath, { timeout = DEFAULT_TIMEOUT, execArgv = DEFAULT_EXEC_ARGV, tsRunner = DEFAULT_TS_RUNNER, transferList = [], globalShims = DEFAULT_GLOBAL_SHIMS, } = {}) {
const { port1: mainPort, port2: workerPort } = new MessageChannel();
const { isTs, ext, jsUseEsm, tsUseEsm, tsRunner: finalTsRunner, workerPath: finalWorkerPath, pnpLoaderPath, execArgv: finalExecArgv, } = setupTsRunner(workerPath, { execArgv, tsRunner });
const workerPathUrl = pathToFileURL(finalWorkerPath);
if (/\.[cm]ts$/.test(finalWorkerPath)) {
const isTsxSupported = !tsUseEsm || TS_ESM_PARTIAL_SUPPORTED;
if (!finalTsRunner) {
throw new Error('No ts runner specified, ts worker path is not supported');
}
else if ([
TsRunner.EsbuildRegister,
TsRunner.EsbuildRunner,
...(TS_ESM_PARTIAL_SUPPORTED
? [
TsRunner.OXC,
TsRunner.SWC,
]
: []),
...(isTsxSupported ? [] : [TsRunner.TSX]),
].includes(finalTsRunner)) {
throw new Error(`${finalTsRunner} is not supported for ${ext} files yet` +
(isTsxSupported
? ', you can try [tsx](https://github.com/esbuild-kit/tsx) instead'
: MTS_SUPPORTED
? ', you can try [oxc](https://github.com/oxc-project/oxc-node) or [swc](https://github.com/swc-project/swc-node/tree/master/packages/register) instead'
: ''));
}
}
const finalGlobalShims = (globalShims === true
? DEFAULT_GLOBAL_SHIMS_PRESET
: Array.isArray(globalShims)
? globalShims
: []).filter(({ moduleName }) => isPkgAvailable(moduleName));
sharedBufferView !== null && sharedBufferView !== void 0 ? sharedBufferView : (sharedBufferView = new Int32Array((sharedBuffer !== null && sharedBuffer !== void 0 ? sharedBuffer : (sharedBuffer = new SharedArrayBuffer(INT32_BYTES))), 0, 1));
const useGlobals = finalGlobalShims.length > 0;
const useEval = isTs ? !tsUseEsm : !jsUseEsm && useGlobals;
const worker = new Worker((jsUseEsm && useGlobals) || (tsUseEsm && finalTsRunner === TsRunner.TsNode)
? dataUrl(`${generateGlobals(finalWorkerPath, finalGlobalShims)};import '${String(workerPathUrl)}'`)
: useEval
? `${generateGlobals(finalWorkerPath, finalGlobalShims, 'require')};${encodeImportModule(finalWorkerPath, 'require')}`
: workerPathUrl, {
eval: useEval,
workerData: { sharedBufferView, workerPort, pnpLoaderPath },
transferList: [workerPort, ...transferList],
execArgv: finalExecArgv,
});
let nextID = 0;
const receiveMessageWithId = (port, expectedId, waitingTimeout) => {
const start = Date.now();
const status = Atomics.wait(sharedBufferView, 0, 0, waitingTimeout);
Atomics.store(sharedBufferView, 0, 0);
if (!['ok', 'not-equal'].includes(status)) {
const abortMsg = {
id: expectedId,
cmd: 'abort',
};
port.postMessage(abortMsg);
throw new Error('Internal error: Atomics.wait() failed: ' + status);
}
const _a = receiveMessageOnPort(mainPort).message, { id } = _a, message = __rest(_a, ["id"]);
if (id < expectedId) {
const waitingTime = Date.now() - start;
return receiveMessageWithId(port, expectedId, waitingTimeout ? waitingTimeout - waitingTime : undefined);
}
if (expectedId !== id) {
throw new Error(`Internal error: Expected id ${expectedId} but got id ${id}`);
}
return Object.assign({ id }, message);
};
const syncFn = (...args) => {
const id = nextID++;
const msg = { id, args };
worker.postMessage(msg);
const { result, error, properties, stdio } = receiveMessageWithId(mainPort, id, timeout);
for (const { type, chunk, encoding } of stdio) {
process[type].write(chunk, encoding);
}
if (error) {
throw Object.assign(error, properties);
}
return result;
};
worker.unref();
return syncFn;
}
export const overrideStdio = (stdio) => {
for (const type of ['stdout', 'stderr']) {
process[type]._writev = (chunks, callback) => {
for (const { chunk, encoding, } of chunks) {
stdio.push({
type,
chunk,
encoding,
});
}
callback();
};
}
};
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