File
Blob: src/node/module.ts
| 1 | // Copyright (c) 2017-2022 Cloudflare, Inc. |
| 2 | // Licensed under the Apache 2.0 license found in the LICENSE file or at: |
| 3 | // https://opensource.org/licenses/Apache-2.0 |
| 4 | |
| 5 | import { default as moduleUtil } from 'node-internal:module'; |
| 6 | import { |
| 7 | ERR_INVALID_ARG_VALUE, |
| 8 | ERR_METHOD_NOT_IMPLEMENTED, |
| 9 | } from 'node-internal:internal_errors'; |
| 10 | import { builtinModules } from 'node-internal:internal_module'; |
| 11 | |
| 12 | export function enableCompileCache(): void { |
| 13 | // We don't plan to support this in the future. |
| 14 | // Since, this method shouldn't throw an error, we just act like a no-op. |
| 15 | } |
| 16 | |
| 17 | export function getCompileCacheDir(): undefined { |
| 18 | // We don't plan to support this in the future. |
| 19 | // Since, compile cache acts as a no-op, we just return undefined. |
| 20 | return undefined; |
| 21 | } |
| 22 | |
| 23 | // We are unlikely to implement this in the future. |
| 24 | export const _extensions = { |
| 25 | '.js': (): void => { |
| 26 | throw new ERR_METHOD_NOT_IMPLEMENTED('module._extensions.js'); |
| 27 | }, |
| 28 | '.json': (): void => { |
| 29 | throw new ERR_METHOD_NOT_IMPLEMENTED('module._extensions.json'); |
| 30 | }, |
| 31 | '.node': (): void => { |
| 32 | throw new ERR_METHOD_NOT_IMPLEMENTED('module._extensions.node'); |
| 33 | }, |
| 34 | }; |
| 35 | |
| 36 | export function createRequire( |
| 37 | path: string | URL |
| 38 | ): (specifier: string) => unknown { |
| 39 | // Note that per Node.js' requirements, path must be one of either |
| 40 | // an absolute file path or a file URL. We do not currently handle |
| 41 | // module specifiers as URLs yet, but we'll try to get close. |
| 42 | |
| 43 | const normalizedPath = `${path}`; |
| 44 | if (!normalizedPath.startsWith('/') && !normalizedPath.startsWith('file:')) { |
| 45 | throw new ERR_INVALID_ARG_VALUE( |
| 46 | 'path', |
| 47 | normalizedPath, |
| 48 | 'The argument must be a file URL object, a file URL string, or an absolute path string.' |
| 49 | ); |
| 50 | } |
| 51 | |
| 52 | return moduleUtil.createRequire(normalizedPath); |
| 53 | } |
| 54 | |
| 55 | Object.defineProperties(createRequire, { |
| 56 | resolve: { |
| 57 | value: (): void => { |
| 58 | // TODO(soon): We could support this in the future. |
| 59 | throw new ERR_METHOD_NOT_IMPLEMENTED('module.createRequire.resolve'); |
| 60 | }, |
| 61 | enumerable: true, |
| 62 | writable: true, |
| 63 | }, |
| 64 | paths: { |
| 65 | value: (): void => { |
| 66 | throw new ERR_METHOD_NOT_IMPLEMENTED( |
| 67 | 'module.createRequire.resolve.paths' |
| 68 | ); |
| 69 | }, |
| 70 | enumerable: true, |
| 71 | writable: true, |
| 72 | }, |
| 73 | cache: { |
| 74 | value: { __proto__: null }, |
| 75 | enumerable: true, |
| 76 | writable: true, |
| 77 | }, |
| 78 | extensions: { |
| 79 | value: _extensions, |
| 80 | enumerable: true, |
| 81 | writable: true, |
| 82 | }, |
| 83 | main: { |
| 84 | value: undefined, |
| 85 | enumerable: true, |
| 86 | writable: true, |
| 87 | }, |
| 88 | }); |
| 89 | |
| 90 | // Indicates only that the given specifier is known to be a |
| 91 | // Node.js built-in module specifier with or with the the |
| 92 | // 'node:' prefix. A true return value does not guarantee that |
| 93 | // the module is actually implemented in the runtime. |
| 94 | export function isBuiltin(specifier: string): boolean { |
| 95 | return moduleUtil.isBuiltin(specifier); |
| 96 | } |
| 97 | |
| 98 | export { builtinModules }; |
| 99 | |
| 100 | export function register(): void { |
| 101 | // TODO(soon): We might support this in the future. |
| 102 | throw new ERR_METHOD_NOT_IMPLEMENTED('module.register'); |
| 103 | } |
| 104 | |
| 105 | export function runMain(): void { |
| 106 | // We don't plan to support this in the future. |
| 107 | throw new ERR_METHOD_NOT_IMPLEMENTED('module.runMain'); |
| 108 | } |
| 109 | |
| 110 | export function syncBuiltinESMExports(): void { |
| 111 | // We are unlikely to ever support this. |
| 112 | throw new ERR_METHOD_NOT_IMPLEMENTED('module.syncBuiltinESMExports'); |
| 113 | } |
| 114 | |
| 115 | export function wrap(): void { |
| 116 | // TODO(soon): Implement this feature. |
| 117 | throw new ERR_METHOD_NOT_IMPLEMENTED('module.wrap'); |
| 118 | } |
| 119 | |
| 120 | export const globalPaths: string[] = []; |
| 121 | |
| 122 | const compileCacheStatus = Object.freeze({ |
| 123 | __proto__: null, |
| 124 | FAILED: 0, |
| 125 | ENABLED: 1, |
| 126 | ALREADY_ENABLED: 2, |
| 127 | DISABLED: 3, |
| 128 | }); |
| 129 | |
| 130 | export const constants = Object.freeze({ |
| 131 | __proto__: null, |
| 132 | compileCacheStatus, |
| 133 | }); |
| 134 | |
| 135 | export const _cache = { __proto__: null }; |
| 136 | export const _pathCache = { __proto__: null }; |
| 137 | |
| 138 | export function _debug(): void { |
| 139 | // This is deprecated and will be removed in the future. |
| 140 | throw new ERR_METHOD_NOT_IMPLEMENTED('module._debug'); |
| 141 | } |
| 142 | |
| 143 | export function _findPath(): void { |
| 144 | // It doesn't make sense to support this. |
| 145 | throw new ERR_METHOD_NOT_IMPLEMENTED('module._findPath'); |
| 146 | } |
| 147 | |
| 148 | export function _initPaths(): void { |
| 149 | // It doesn't make sense to support this. |
| 150 | throw new ERR_METHOD_NOT_IMPLEMENTED('module._initPaths'); |
| 151 | } |
| 152 | |
| 153 | export function _load(): void { |
| 154 | // TODO(soon): Investigate the possibility of supporting this in the future. |
| 155 | throw new ERR_METHOD_NOT_IMPLEMENTED('module._load'); |
| 156 | } |
| 157 | |
| 158 | export function _preloadModules(): void { |
| 159 | // It doesn't make sense to support this. |
| 160 | throw new ERR_METHOD_NOT_IMPLEMENTED('module._preloadModules'); |
| 161 | } |
| 162 | |
| 163 | export function _resolveFilename(): void { |
| 164 | // TODO(soon): Investigate the possibility of supporting this in the future. |
| 165 | throw new ERR_METHOD_NOT_IMPLEMENTED('module._resolveFilename'); |
| 166 | } |
| 167 | |
| 168 | export function _resolveLookupPaths(): void { |
| 169 | // TODO(soon): Investigate the possibility of supporting this in the future. |
| 170 | throw new ERR_METHOD_NOT_IMPLEMENTED('module._resolveLookupPaths'); |
| 171 | } |
| 172 | |
| 173 | export function _nodeModulePaths(): void { |
| 174 | // It doesn't make sense to support this. |
| 175 | throw new ERR_METHOD_NOT_IMPLEMENTED('module._nodeModulePaths'); |
| 176 | } |
| 177 | |
| 178 | export function findSourceMap(): void { |
| 179 | // TODO(soon): Investigate the possibility of supporting this in the future. |
| 180 | throw new ERR_METHOD_NOT_IMPLEMENTED('module.findSourceMap'); |
| 181 | } |
| 182 | |
| 183 | export function findPackageJSON(): void { |
| 184 | // It doesn't make sense to support this. |
| 185 | throw new ERR_METHOD_NOT_IMPLEMENTED('module.findPackageJSON'); |
| 186 | } |
| 187 | |
| 188 | export function flushCompileCache(): void { |
| 189 | // We don't implement compile cache. This acts as a no-op. |
| 190 | } |
| 191 | |
| 192 | export function getSourceMapsSupport(): Record<string, boolean | null> { |
| 193 | return Object.freeze({ |
| 194 | __proto__: null, |
| 195 | enabled: false, |
| 196 | nodeModules: false, |
| 197 | generatedCode: false, |
| 198 | }); |
| 199 | } |
| 200 | |
| 201 | export function setSourceMapsSupport(): void { |
| 202 | // We don't implement source maps support. |
| 203 | throw new ERR_METHOD_NOT_IMPLEMENTED('module.setSourceMapsSupport'); |
| 204 | } |
| 205 | |
| 206 | export function stripTypeScriptTypes(): void { |
| 207 | // We don't implement stripping TypeScript types. |
| 208 | throw new ERR_METHOD_NOT_IMPLEMENTED('module.stripTypeScriptTypes'); |
| 209 | } |
| 210 | |
| 211 | export function registerHooks(): void { |
| 212 | // We don't implement hooks registration. |
| 213 | throw new ERR_METHOD_NOT_IMPLEMENTED('module.registerHooks'); |
| 214 | } |
| 215 | |
| 216 | export function SourceMap(): void { |
| 217 | // We don't support source maps. |
| 218 | throw new ERR_METHOD_NOT_IMPLEMENTED('module.SourceMap'); |
| 219 | } |
| 220 | |
| 221 | export function Module(): void { |
| 222 | // TODO(soon): Investigate implementing Module class fully. |
| 223 | throw new ERR_METHOD_NOT_IMPLEMENTED('module.Module'); |
| 224 | } |
| 225 | |
| 226 | // eslint-disable-next-line @typescript-eslint/no-unsafe-member-access |
| 227 | Module.prototype.load = function load(): void { |
| 228 | // Acts as a no-op. |
| 229 | }; |
| 230 | |
| 231 | // eslint-disable-next-line @typescript-eslint/no-unsafe-member-access |
| 232 | Module.prototype.require = function require(): void { |
| 233 | // Acts as a no-op. |
| 234 | }; |
| 235 | |
| 236 | // eslint-disable-next-line @typescript-eslint/no-unsafe-member-access |
| 237 | Module.prototype._compile = function _compile(): void { |
| 238 | // Acts as a no-op. |
| 239 | }; |
| 240 | |
| 241 | Object.defineProperty(Module.prototype, 'isPreloading', { |
| 242 | get() { |
| 243 | return false; |
| 244 | }, |
| 245 | }); |
| 246 | |
| 247 | Object.defineProperties(Module, { |
| 248 | register: { |
| 249 | value: register, |
| 250 | writable: true, |
| 251 | enumerable: true, |
| 252 | }, |
| 253 | constants: { |
| 254 | value: constants, |
| 255 | writable: true, |
| 256 | enumerable: true, |
| 257 | }, |
| 258 | enableCompileCache: { |
| 259 | value: enableCompileCache, |
| 260 | writable: true, |
| 261 | enumerable: true, |
| 262 | }, |
| 263 | findPackageJSON: { |
| 264 | value: findPackageJSON, |
| 265 | writable: true, |
| 266 | enumerable: true, |
| 267 | }, |
| 268 | flushCompileCache: { |
| 269 | value: flushCompileCache, |
| 270 | writable: true, |
| 271 | enumerable: true, |
| 272 | }, |
| 273 | getCompileCacheDir: { |
| 274 | value: getCompileCacheDir, |
| 275 | writable: true, |
| 276 | enumerable: true, |
| 277 | }, |
| 278 | stripTypeScriptTypes: { |
| 279 | value: stripTypeScriptTypes, |
| 280 | writable: true, |
| 281 | enumerable: true, |
| 282 | }, |
| 283 | findSourceMap: { |
| 284 | value: findSourceMap, |
| 285 | writable: true, |
| 286 | enumerable: true, |
| 287 | }, |
| 288 | SourceMap: { |
| 289 | value: SourceMap, |
| 290 | writable: true, |
| 291 | enumerable: true, |
| 292 | }, |
| 293 | getSourceMapsSupport: { |
| 294 | value: getSourceMapsSupport, |
| 295 | writable: true, |
| 296 | enumerable: true, |
| 297 | }, |
| 298 | setSourceMapsSupport: { |
| 299 | value: setSourceMapsSupport, |
| 300 | writable: true, |
| 301 | enumerable: true, |
| 302 | }, |
| 303 | createRequire: { |
| 304 | value: createRequire, |
| 305 | writable: true, |
| 306 | enumerable: true, |
| 307 | }, |
| 308 | builtinModules: { |
| 309 | value: builtinModules, |
| 310 | writable: true, |
| 311 | enumerable: true, |
| 312 | }, |
| 313 | globalPaths: { |
| 314 | value: globalPaths, |
| 315 | writable: true, |
| 316 | enumerable: true, |
| 317 | }, |
| 318 | isBuiltin: { |
| 319 | value: isBuiltin, |
| 320 | writable: true, |
| 321 | enumerable: true, |
| 322 | }, |
| 323 | runMain: { |
| 324 | value: runMain, |
| 325 | writable: true, |
| 326 | enumerable: true, |
| 327 | }, |
| 328 | syncBuiltinESMExports: { |
| 329 | value: syncBuiltinESMExports, |
| 330 | writable: true, |
| 331 | enumerable: true, |
| 332 | }, |
| 333 | wrap: { |
| 334 | value: wrap, |
| 335 | writable: true, |
| 336 | enumerable: true, |
| 337 | }, |
| 338 | _cache: { |
| 339 | value: _cache, |
| 340 | writable: true, |
| 341 | enumerable: true, |
| 342 | }, |
| 343 | _debug: { |
| 344 | value: _debug, |
| 345 | writable: true, |
| 346 | enumerable: true, |
| 347 | }, |
| 348 | _extensions: { |
| 349 | value: _extensions, |
| 350 | writable: true, |
| 351 | enumerable: true, |
| 352 | }, |
| 353 | _findPath: { |
| 354 | value: _findPath, |
| 355 | writable: true, |
| 356 | enumerable: true, |
| 357 | }, |
| 358 | _initPaths: { |
| 359 | value: _initPaths, |
| 360 | writable: true, |
| 361 | enumerable: true, |
| 362 | }, |
| 363 | _load: { |
| 364 | value: _load, |
| 365 | writable: true, |
| 366 | enumerable: true, |
| 367 | }, |
| 368 | _pathCache: { |
| 369 | value: _pathCache, |
| 370 | writable: true, |
| 371 | enumerable: true, |
| 372 | }, |
| 373 | _preloadModules: { |
| 374 | value: _preloadModules, |
| 375 | writable: true, |
| 376 | enumerable: true, |
| 377 | }, |
| 378 | _resolveFilename: { |
| 379 | value: _resolveFilename, |
| 380 | writable: true, |
| 381 | enumerable: true, |
| 382 | }, |
| 383 | _resolveLookupPaths: { |
| 384 | value: _resolveLookupPaths, |
| 385 | writable: true, |
| 386 | enumerable: true, |
| 387 | }, |
| 388 | _nodeModulePaths: { |
| 389 | value: _nodeModulePaths, |
| 390 | writable: true, |
| 391 | enumerable: true, |
| 392 | }, |
| 393 | Module: { |
| 394 | value: Module, |
| 395 | writable: true, |
| 396 | enumerable: true, |
| 397 | }, |
| 398 | registerHooks: { |
| 399 | value: registerHooks, |
| 400 | writable: true, |
| 401 | enumerable: true, |
| 402 | }, |
| 403 | }); |
| 404 | |
| 405 | export default Module; |