594 lines
19 KiB
JavaScript
594 lines
19 KiB
JavaScript
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// Copied from several files in node's source code.
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// https://github.com/nodejs/node/blob/2d5d77306f6dff9110c1f77fefab25f973415770/lib/internal/modules/cjs/loader.js
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// Each function and variable below must have a comment linking to the source in node's github repo.
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'use strict';
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const {
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ArrayIsArray,
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ArrayPrototypeIncludes,
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ArrayPrototypeJoin,
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ArrayPrototypePush,
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JSONParse,
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ObjectKeys,
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RegExpPrototypeTest,
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SafeMap,
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SafeWeakMap,
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StringPrototypeCharCodeAt,
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StringPrototypeEndsWith,
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StringPrototypeLastIndexOf,
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StringPrototypeIndexOf,
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StringPrototypeMatch,
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StringPrototypeSlice,
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StringPrototypeStartsWith,
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} = require('./node-primordials');
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const { NativeModule } = require('./node-nativemodule');
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const { pathToFileURL, fileURLToPath } = require('url');
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const fs = require('fs');
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const path = require('path');
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const { sep } = path;
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const { internalModuleStat } = require('./node-internalBinding-fs');
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const packageJsonReader = require('./node-internal-modules-package_json_reader');
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const {
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cjsConditions,
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} = require('./node-internal-modules-cjs-helpers');
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const { getOptionValue } = require('./node-options');
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const preserveSymlinks = getOptionValue('--preserve-symlinks');
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const preserveSymlinksMain = getOptionValue('--preserve-symlinks-main');
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const {normalizeSlashes} = require('../dist/util');
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const {createErrRequireEsm} = require('./node-internal-errors');
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const {
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codes: {
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ERR_INVALID_MODULE_SPECIFIER,
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},
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} = require('./node-internal-errors');
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const {
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CHAR_FORWARD_SLASH,
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} = require('./node-internal-constants');
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const Module = require('module');
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const isWindows = process.platform === 'win32';
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let statCache = null;
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function stat(filename) {
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filename = path.toNamespacedPath(filename);
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if (statCache !== null) {
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const result = statCache.get(filename);
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if (result !== undefined) return result;
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}
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const result = internalModuleStat(filename);
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if (statCache !== null && result >= 0) {
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// Only set cache when `internalModuleStat(filename)` succeeds.
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statCache.set(filename, result);
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}
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return result;
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}
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// Note:
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// we cannot get access to node's internal cache, which is populated from
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// within node's Module constructor. So the cache here will always be empty.
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// It's possible we could approximate our own cache by building it up with
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// hacky workarounds, but it's not worth the complexity and flakiness.
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const moduleParentCache = new SafeWeakMap();
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// Given a module name, and a list of paths to test, returns the first
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// matching file in the following precedence.
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//
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// require("a.<ext>")
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// -> a.<ext>
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//
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// require("a")
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// -> a
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// -> a.<ext>
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// -> a/index.<ext>
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const packageJsonCache = new SafeMap();
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function readPackage(requestPath) {
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const jsonPath = path.resolve(requestPath, 'package.json');
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const existing = packageJsonCache.get(jsonPath);
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if (existing !== undefined) return existing;
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const result = packageJsonReader.read(jsonPath);
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const json = result.containsKeys === false ? '{}' : result.string;
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if (json === undefined) {
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packageJsonCache.set(jsonPath, false);
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return false;
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}
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try {
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const parsed = JSONParse(json);
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const filtered = {
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name: parsed.name,
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main: parsed.main,
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exports: parsed.exports,
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imports: parsed.imports,
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type: parsed.type
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};
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packageJsonCache.set(jsonPath, filtered);
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return filtered;
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} catch (e) {
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e.path = jsonPath;
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e.message = 'Error parsing ' + jsonPath + ': ' + e.message;
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throw e;
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}
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}
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function readPackageScope(checkPath) {
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const rootSeparatorIndex = StringPrototypeIndexOf(checkPath, sep);
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let separatorIndex;
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do {
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separatorIndex = StringPrototypeLastIndexOf(checkPath, sep);
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checkPath = StringPrototypeSlice(checkPath, 0, separatorIndex);
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if (StringPrototypeEndsWith(checkPath, sep + 'node_modules'))
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return false;
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const pjson = readPackage(checkPath + sep);
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if (pjson) return {
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data: pjson,
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path: checkPath,
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};
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} while (separatorIndex > rootSeparatorIndex);
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return false;
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}
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/**
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* @param {{
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* nodeEsmResolver: ReturnType<typeof import('./node-internal-modules-esm-resolve').createResolve>,
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* extensions: import('../src/file-extensions').Extensions,
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* preferTsExts
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* }} opts
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*/
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function createCjsLoader(opts) {
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const {nodeEsmResolver, preferTsExts} = opts;
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const {replacementsForCjs, replacementsForJs, replacementsForMjs, replacementsForJsx} = opts.extensions;
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const {
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encodedSepRegEx,
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packageExportsResolve,
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packageImportsResolve
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} = nodeEsmResolver;
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function tryPackage(requestPath, exts, isMain, originalPath) {
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// const pkg = readPackage(requestPath)?.main;
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const tmp = readPackage(requestPath)
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const pkg = tmp != null ? tmp.main : undefined;
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if (!pkg) {
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return tryExtensions(path.resolve(requestPath, 'index'), exts, isMain);
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}
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const filename = path.resolve(requestPath, pkg);
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let actual = tryReplacementExtensions(filename, isMain) ||
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tryFile(filename, isMain) ||
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tryExtensions(filename, exts, isMain) ||
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tryExtensions(path.resolve(filename, 'index'), exts, isMain);
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if (actual === false) {
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actual = tryExtensions(path.resolve(requestPath, 'index'), exts, isMain);
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if (!actual) {
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// eslint-disable-next-line no-restricted-syntax
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const err = new Error(
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`Cannot find module '${filename}'. ` +
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'Please verify that the package.json has a valid "main" entry'
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);
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err.code = 'MODULE_NOT_FOUND';
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err.path = path.resolve(requestPath, 'package.json');
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err.requestPath = originalPath;
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// TODO(BridgeAR): Add the requireStack as well.
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throw err;
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} else {
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const jsonPath = path.resolve(requestPath, 'package.json');
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process.emitWarning(
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`Invalid 'main' field in '${jsonPath}' of '${pkg}'. ` +
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'Please either fix that or report it to the module author',
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'DeprecationWarning',
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'DEP0128'
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);
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}
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}
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return actual;
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}
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// In order to minimize unnecessary lstat() calls,
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// this cache is a list of known-real paths.
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// Set to an empty Map to reset.
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const realpathCache = new SafeMap();
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// Check if the file exists and is not a directory
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// if using --preserve-symlinks and isMain is false,
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// keep symlinks intact, otherwise resolve to the
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// absolute realpath.
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function tryFile(requestPath, isMain) {
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const rc = stat(requestPath);
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if (rc !== 0) return;
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if (preserveSymlinks && !isMain) {
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return path.resolve(requestPath);
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}
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return toRealPath(requestPath);
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}
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function toRealPath(requestPath) {
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return fs.realpathSync(requestPath, {
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// [internalFS.realpathCacheKey]: realpathCache
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});
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}
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function statReplacementExtensions(p) {
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const lastDotIndex = p.lastIndexOf('.');
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if(lastDotIndex >= 0) {
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const ext = p.slice(lastDotIndex);
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if (ext === '.js' || ext === '.jsx' || ext === '.mjs' || ext === '.cjs') {
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const pathnameWithoutExtension = p.slice(0, lastDotIndex);
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const replacementExts =
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ext === '.js' ? replacementsForJs
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: ext === '.jsx' ? replacementsForJsx
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: ext === '.mjs' ? replacementsForMjs
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: replacementsForCjs;
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for (let i = 0; i < replacementExts.length; i++) {
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const filename = pathnameWithoutExtension + replacementExts[i];
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const rc = stat(filename);
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if (rc === 0) {
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return [rc, filename];
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}
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}
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}
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}
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return [stat(p), p];
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}
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function tryReplacementExtensions(p, isMain) {
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const lastDotIndex = p.lastIndexOf('.');
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if(lastDotIndex >= 0) {
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const ext = p.slice(lastDotIndex);
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if (ext === '.js' || ext === '.jsx' || ext === '.mjs' || ext === '.cjs') {
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const pathnameWithoutExtension = p.slice(0, lastDotIndex);
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const replacementExts =
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ext === '.js' ? replacementsForJs
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: ext === '.jsx' ? replacementsForJsx
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: ext === '.mjs' ? replacementsForMjs
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: replacementsForCjs;
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for (let i = 0; i < replacementExts.length; i++) {
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const filename = tryFile(pathnameWithoutExtension + replacementExts[i], isMain);
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if (filename) {
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return filename;
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}
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}
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}
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}
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return false;
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}
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// Given a path, check if the file exists with any of the set extensions
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function tryExtensions(p, exts, isMain) {
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for (let i = 0; i < exts.length; i++) {
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const filename = tryFile(p + exts[i], isMain);
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if (filename) {
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return filename;
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}
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}
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return false;
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}
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function trySelfParentPath(parent) {
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if (!parent) return false;
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if (parent.filename) {
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return parent.filename;
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} else if (parent.id === '<repl>' || parent.id === 'internal/preload') {
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try {
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return process.cwd() + path.sep;
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} catch {
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return false;
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}
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}
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}
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function trySelf(parentPath, request) {
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if (!parentPath) return false;
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const { data: pkg, path: pkgPath } = readPackageScope(parentPath) || {};
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if (!pkg || pkg.exports === undefined) return false;
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if (typeof pkg.name !== 'string') return false;
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let expansion;
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if (request === pkg.name) {
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expansion = '.';
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} else if (StringPrototypeStartsWith(request, `${pkg.name}/`)) {
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expansion = '.' + StringPrototypeSlice(request, pkg.name.length);
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} else {
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return false;
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}
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try {
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return finalizeEsmResolution(packageExportsResolve(
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pathToFileURL(pkgPath + '/package.json'), expansion, pkg,
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pathToFileURL(parentPath), cjsConditions).resolved, parentPath, pkgPath);
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} catch (e) {
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if (e.code === 'ERR_MODULE_NOT_FOUND')
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throw createEsmNotFoundErr(request, pkgPath + '/package.json');
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throw e;
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}
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}
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// This only applies to requests of a specific form:
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// 1. name/.*
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// 2. @scope/name/.*
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const EXPORTS_PATTERN = /^((?:@[^/\\%]+\/)?[^./\\%][^/\\%]*)(\/.*)?$/;
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function resolveExports(nmPath, request) {
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// The implementation's behavior is meant to mirror resolution in ESM.
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const { 1: name, 2: expansion = '' } =
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StringPrototypeMatch(request, EXPORTS_PATTERN) || [];
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if (!name)
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return;
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const pkgPath = path.resolve(nmPath, name);
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const pkg = readPackage(pkgPath);
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// if (pkg?.exports != null) {
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if (pkg != null && pkg.exports != null) {
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try {
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return finalizeEsmResolution(packageExportsResolve(
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pathToFileURL(pkgPath + '/package.json'), '.' + expansion, pkg, null,
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cjsConditions).resolved, null, pkgPath);
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} catch (e) {
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if (e.code === 'ERR_MODULE_NOT_FOUND')
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throw createEsmNotFoundErr(request, pkgPath + '/package.json');
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throw e;
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}
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}
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}
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// Backwards compat for old node versions
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const hasModulePathCache = !!require('module')._pathCache;
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const Module_pathCache = Object.create(null);
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const Module_pathCache_get = hasModulePathCache ? (cacheKey) => Module._pathCache[cacheKey] : (cacheKey) => Module_pathCache[cacheKey];
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const Module_pathCache_set = hasModulePathCache ? (cacheKey, value) => (Module._pathCache[cacheKey] = value) : (cacheKey) => (Module_pathCache[cacheKey] = value);
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const trailingSlashRegex = /(?:^|\/)\.?\.$/;
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const Module_findPath = function _findPath(request, paths, isMain) {
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const absoluteRequest = path.isAbsolute(request);
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if (absoluteRequest) {
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paths = [''];
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} else if (!paths || paths.length === 0) {
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return false;
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}
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const cacheKey = request + '\x00' + ArrayPrototypeJoin(paths, '\x00');
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const entry = Module_pathCache_get(cacheKey);
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if (entry)
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return entry;
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let exts;
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let trailingSlash = request.length > 0 &&
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StringPrototypeCharCodeAt(request, request.length - 1) ===
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CHAR_FORWARD_SLASH;
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if (!trailingSlash) {
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trailingSlash = RegExpPrototypeTest(trailingSlashRegex, request);
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}
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// For each path
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for (let i = 0; i < paths.length; i++) {
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// Don't search further if path doesn't exist
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|
const curPath = paths[i];
|
||
|
|
if (curPath && stat(curPath) < 1) continue;
|
||
|
|
|
||
|
|
if (!absoluteRequest) {
|
||
|
|
const exportsResolved = resolveExports(curPath, request);
|
||
|
|
if (exportsResolved)
|
||
|
|
return exportsResolved;
|
||
|
|
}
|
||
|
|
|
||
|
|
const _basePath = path.resolve(curPath, request);
|
||
|
|
let filename;
|
||
|
|
|
||
|
|
const [rc, basePath] = statReplacementExtensions(_basePath);
|
||
|
|
if (!trailingSlash) {
|
||
|
|
if (rc === 0) { // File.
|
||
|
|
if (!isMain) {
|
||
|
|
if (preserveSymlinks) {
|
||
|
|
filename = path.resolve(basePath);
|
||
|
|
} else {
|
||
|
|
filename = toRealPath(basePath);
|
||
|
|
}
|
||
|
|
} else if (preserveSymlinksMain) {
|
||
|
|
// For the main module, we use the preserveSymlinksMain flag instead
|
||
|
|
// mainly for backward compatibility, as the preserveSymlinks flag
|
||
|
|
// historically has not applied to the main module. Most likely this
|
||
|
|
// was intended to keep .bin/ binaries working, as following those
|
||
|
|
// symlinks is usually required for the imports in the corresponding
|
||
|
|
// files to resolve; that said, in some use cases following symlinks
|
||
|
|
// causes bigger problems which is why the preserveSymlinksMain option
|
||
|
|
// is needed.
|
||
|
|
filename = path.resolve(basePath);
|
||
|
|
} else {
|
||
|
|
filename = toRealPath(basePath);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!filename) {
|
||
|
|
// Try it with each of the extensions
|
||
|
|
if (exts === undefined)
|
||
|
|
exts = ObjectKeys(Module._extensions);
|
||
|
|
filename = tryExtensions(basePath, exts, isMain);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!filename && rc === 1) { // Directory.
|
||
|
|
// try it with each of the extensions at "index"
|
||
|
|
if (exts === undefined)
|
||
|
|
exts = ObjectKeys(Module._extensions);
|
||
|
|
filename = tryPackage(basePath, exts, isMain, request);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (filename) {
|
||
|
|
Module_pathCache_set(cacheKey, filename);
|
||
|
|
return filename;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return false;
|
||
|
|
};
|
||
|
|
|
||
|
|
const Module_resolveFilename = function _resolveFilename(request, parent, isMain, options) {
|
||
|
|
if (StringPrototypeStartsWith(request, 'node:') ||
|
||
|
|
NativeModule.canBeRequiredByUsers(request)) {
|
||
|
|
return request;
|
||
|
|
}
|
||
|
|
|
||
|
|
let paths;
|
||
|
|
|
||
|
|
if (typeof options === 'object' && options !== null) {
|
||
|
|
if (ArrayIsArray(options.paths)) {
|
||
|
|
const isRelative = StringPrototypeStartsWith(request, './') ||
|
||
|
|
StringPrototypeStartsWith(request, '../') ||
|
||
|
|
((isWindows && StringPrototypeStartsWith(request, '.\\')) ||
|
||
|
|
StringPrototypeStartsWith(request, '..\\'));
|
||
|
|
|
||
|
|
if (isRelative) {
|
||
|
|
paths = options.paths;
|
||
|
|
} else {
|
||
|
|
const fakeParent = new Module('', null);
|
||
|
|
|
||
|
|
paths = [];
|
||
|
|
|
||
|
|
for (let i = 0; i < options.paths.length; i++) {
|
||
|
|
const path = options.paths[i];
|
||
|
|
fakeParent.paths = Module._nodeModulePaths(path);
|
||
|
|
const lookupPaths = Module._resolveLookupPaths(request, fakeParent);
|
||
|
|
|
||
|
|
for (let j = 0; j < lookupPaths.length; j++) {
|
||
|
|
if (!ArrayPrototypeIncludes(paths, lookupPaths[j]))
|
||
|
|
ArrayPrototypePush(paths, lookupPaths[j]);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
} else if (options.paths === undefined) {
|
||
|
|
paths = Module._resolveLookupPaths(request, parent);
|
||
|
|
} else {
|
||
|
|
throw new ERR_INVALID_ARG_VALUE('options.paths', options.paths);
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
paths = Module._resolveLookupPaths(request, parent);
|
||
|
|
}
|
||
|
|
|
||
|
|
// if (parent?.filename) {
|
||
|
|
// node 12 hack
|
||
|
|
if (parent != null && parent.filename) {
|
||
|
|
if (request[0] === '#') {
|
||
|
|
const pkg = readPackageScope(parent.filename) || {};
|
||
|
|
|
||
|
|
// if (pkg.data?.imports != null) {
|
||
|
|
// node 12 hack
|
||
|
|
if (pkg.data != null && pkg.data.imports != null) {
|
||
|
|
try {
|
||
|
|
return finalizeEsmResolution(
|
||
|
|
packageImportsResolve(request, pathToFileURL(parent.filename),
|
||
|
|
cjsConditions), parent.filename,
|
||
|
|
pkg.path);
|
||
|
|
} catch (e) {
|
||
|
|
if (e.code === 'ERR_MODULE_NOT_FOUND')
|
||
|
|
throw createEsmNotFoundErr(request);
|
||
|
|
throw e;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Try module self resolution first
|
||
|
|
const parentPath = trySelfParentPath(parent);
|
||
|
|
const selfResolved = trySelf(parentPath, request);
|
||
|
|
if (selfResolved) {
|
||
|
|
const cacheKey = request + '\x00' +
|
||
|
|
(paths.length === 1 ? paths[0] : ArrayPrototypeJoin(paths, '\x00'));
|
||
|
|
Module._pathCache[cacheKey] = selfResolved;
|
||
|
|
return selfResolved;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Look up the filename first, since that's the cache key.
|
||
|
|
const filename = Module._findPath(request, paths, isMain, false);
|
||
|
|
if (filename) return filename;
|
||
|
|
const requireStack = [];
|
||
|
|
for (let cursor = parent;
|
||
|
|
cursor;
|
||
|
|
cursor = moduleParentCache.get(cursor)) {
|
||
|
|
ArrayPrototypePush(requireStack, cursor.filename || cursor.id);
|
||
|
|
}
|
||
|
|
let message = `Cannot find module '${request}'`;
|
||
|
|
if (requireStack.length > 0) {
|
||
|
|
message = message + '\nRequire stack:\n- ' +
|
||
|
|
ArrayPrototypeJoin(requireStack, '\n- ');
|
||
|
|
}
|
||
|
|
// eslint-disable-next-line no-restricted-syntax
|
||
|
|
const err = new Error(message);
|
||
|
|
err.code = 'MODULE_NOT_FOUND';
|
||
|
|
err.requireStack = requireStack;
|
||
|
|
throw err;
|
||
|
|
};
|
||
|
|
|
||
|
|
function finalizeEsmResolution(resolved, parentPath, pkgPath) {
|
||
|
|
if (RegExpPrototypeTest(encodedSepRegEx, resolved))
|
||
|
|
throw new ERR_INVALID_MODULE_SPECIFIER(
|
||
|
|
resolved, 'must not include encoded "/" or "\\" characters', parentPath);
|
||
|
|
const filename = fileURLToPath(resolved);
|
||
|
|
const actual = tryReplacementExtensions(filename) || tryFile(filename);
|
||
|
|
if (actual)
|
||
|
|
return actual;
|
||
|
|
const err = createEsmNotFoundErr(filename,
|
||
|
|
path.resolve(pkgPath, 'package.json'));
|
||
|
|
throw err;
|
||
|
|
}
|
||
|
|
|
||
|
|
function createEsmNotFoundErr(request, path) {
|
||
|
|
// eslint-disable-next-line no-restricted-syntax
|
||
|
|
const err = new Error(`Cannot find module '${request}'`);
|
||
|
|
err.code = 'MODULE_NOT_FOUND';
|
||
|
|
if (path)
|
||
|
|
err.path = path;
|
||
|
|
// TODO(BridgeAR): Add the requireStack as well.
|
||
|
|
return err;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
return {
|
||
|
|
Module_findPath,
|
||
|
|
Module_resolveFilename
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* copied from Module._extensions['.js']
|
||
|
|
* https://github.com/nodejs/node/blob/v15.3.0/lib/internal/modules/cjs/loader.js#L1113-L1120
|
||
|
|
* @param {import('../src/index').Service} service
|
||
|
|
* @param {NodeJS.Module} module
|
||
|
|
* @param {string} filename
|
||
|
|
*/
|
||
|
|
function assertScriptCanLoadAsCJSImpl(service, module, filename) {
|
||
|
|
const pkg = readPackageScope(filename);
|
||
|
|
|
||
|
|
// ts-node modification: allow our configuration to override
|
||
|
|
const tsNodeClassification = service.moduleTypeClassifier.classifyModuleByModuleTypeOverrides(normalizeSlashes(filename));
|
||
|
|
if(tsNodeClassification.moduleType === 'cjs') return;
|
||
|
|
|
||
|
|
// ignore package.json when file extension is ESM-only or CJS-only
|
||
|
|
// [MUST_UPDATE_FOR_NEW_FILE_EXTENSIONS]
|
||
|
|
const lastDotIndex = filename.lastIndexOf('.');
|
||
|
|
const ext = lastDotIndex >= 0 ? filename.slice(lastDotIndex) : '';
|
||
|
|
|
||
|
|
if((ext === '.cts' || ext === '.cjs') && tsNodeClassification.moduleType === 'auto') return;
|
||
|
|
|
||
|
|
// Function require shouldn't be used in ES modules.
|
||
|
|
if (ext === '.mts' || ext === '.mjs' || tsNodeClassification.moduleType === 'esm' || (pkg && pkg.data && pkg.data.type === 'module')) {
|
||
|
|
const parentPath = module.parent && module.parent.filename;
|
||
|
|
const packageJsonPath = pkg ? path.resolve(pkg.path, 'package.json') : null;
|
||
|
|
throw createErrRequireEsm(filename, parentPath, packageJsonPath);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
module.exports = {
|
||
|
|
createCjsLoader,
|
||
|
|
assertScriptCanLoadAsCJSImpl,
|
||
|
|
readPackageScope
|
||
|
|
};
|