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100x 100x 35102x 35102x 35108x 28x 28x 28x 28x 35108x 181x 181x 181x 181x 181x 181x 35086x 35086x 35086x 30x 30x 30x 30x 35082x 35082x 35082x 35082x 35082x 35086x 9x 5x 5x 5x 5x 5x 5x 5x 9x 9x 9x 5x 5x 5x 9x 35064x 35064x 35064x 35064x 35064x 35064x 35069x 35071x 5x 5x 35071x 35059x 35059x 35059x 34795x 35068x 34795x 181x 181x 181x 181x 34431x 34431x 34431x 34431x 85x 85x 34420x 34346x 34346x 34431x 34282x 34282x 34282x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 34282x 34428x 181x 181x 181x 181x 181x 4778x 4778x 4778x 4778x 4778x 4778x 4778x 7x 7x 7x 181x 181x 181x 181x 181x 176x 2x 2x 2x 2x 175x 175x 181x 181x 154x 154x 154x 154x 154x 154x 154x 154x 154x 154x 154x 154x 154x 154x 154x 154x 181x 181x 181x 181x 157x 157x 157x 157x 157x 136x 136x 136x 2x 2x 2x 157x 1x 21x 20x 20x 154x 157x 181x 181x 181x 181x 6492x 6492x 6492x 6492x 6492x 6492x 6492x 6492x 6492x 6492x 6492x 6492x 6491x 6491x 6491x 6492x 6492x 4x 4x 4x 4x 4x 6492x 6492x 6492x 6492x 6492x 181x 181x 181x 54x 54x 54x 54x 54x 54x 54x 54x 54x 54x 54x 54x 1x 1x 54x 54x 51x 181x 181x 181x 14x 4186x 4186x 924x 924x 4186x 181x 181x 181x 8x 181x 181x 181x 181x | // Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.
'use strict';
const {
ArrayIsArray,
ArrayPrototypeConcat,
ArrayPrototypeFilter,
ArrayPrototypeIncludes,
ArrayPrototypeIndexOf,
ArrayPrototypeJoin,
ArrayPrototypePush,
ArrayPrototypeSlice,
ArrayPrototypeSplice,
ArrayPrototypeUnshift,
ArrayPrototypeUnshiftApply,
ArrayPrototypeFlatMap,
Boolean,
Error,
JSONParse,
ObjectCreate,
ObjectDefineProperty,
ObjectFreeze,
ObjectGetOwnPropertyDescriptor,
ObjectGetPrototypeOf,
ObjectKeys,
ObjectPrototype,
ObjectPrototypeHasOwnProperty,
ObjectSetPrototypeOf,
Proxy,
ReflectApply,
ReflectSet,
RegExpPrototypeExec,
SafeMap,
SafeSet,
SafeWeakMap,
String,
StringPrototypeCharAt,
StringPrototypeCharCodeAt,
StringPrototypeEndsWith,
StringPrototypeLastIndexOf,
StringPrototypeIndexOf,
StringPrototypeRepeat,
StringPrototypeSlice,
StringPrototypeSplit,
StringPrototypeStartsWith,
} = primordials;
// Map used to store CJS parsing data.
const cjsParseCache = new SafeWeakMap();
// Set first due to cycle with ESM loader functions.
module.exports = {
wrapSafe, Module, toRealPath, readPackageScope, cjsParseCache,
get hasLoadedAnyUserCJSModule() { return hasLoadedAnyUserCJSModule; }
};
const { NativeModule } = require('internal/bootstrap/loaders');
const {
maybeCacheSourceMap,
} = require('internal/source_map/source_map_cache');
const { pathToFileURL, fileURLToPath, isURLInstance } = require('internal/url');
const { deprecate, kEmptyObject } = require('internal/util');
const vm = require('vm');
const assert = require('internal/assert');
const fs = require('fs');
const internalFS = require('internal/fs/utils');
const path = require('path');
const { sep } = path;
const { internalModuleStat } = internalBinding('fs');
const packageJsonReader = require('internal/modules/package_json_reader');
const { safeGetenv } = internalBinding('credentials');
const {
cjsConditions,
hasEsmSyntax,
loadNativeModule,
makeRequireFunction,
normalizeReferrerURL,
stripBOM,
} = require('internal/modules/cjs/helpers');
const { getOptionValue } = require('internal/options');
const preserveSymlinks = getOptionValue('--preserve-symlinks');
const preserveSymlinksMain = getOptionValue('--preserve-symlinks-main');
// Do not eagerly grab .manifest, it may be in TDZ
const policy = getOptionValue('--experimental-policy') ?
require('internal/process/policy') :
null;
// Whether any user-provided CJS modules had been loaded (executed).
// Used for internal assertions.
let hasLoadedAnyUserCJSModule = false;
const {
codes: {
ERR_INVALID_ARG_VALUE,
ERR_INVALID_MODULE_SPECIFIER,
ERR_REQUIRE_ESM,
ERR_UNKNOWN_BUILTIN_MODULE,
},
setArrowMessage,
} = require('internal/errors');
const { validateString } = require('internal/validators');
const pendingDeprecation = getOptionValue('--pending-deprecation');
const {
CHAR_FORWARD_SLASH,
CHAR_BACKWARD_SLASH,
CHAR_COLON
} = require('internal/constants');
const {
isProxy
} = require('internal/util/types');
const asyncESM = require('internal/process/esm_loader');
const { enrichCJSError } = require('internal/modules/esm/translators');
const { kEvaluated } = internalBinding('module_wrap');
const {
encodedSepRegEx,
packageExportsResolve,
packageImportsResolve
} = require('internal/modules/esm/resolve');
const isWindows = process.platform === 'win32';
const relativeResolveCache = ObjectCreate(null);
let requireDepth = 0;
let statCache = null;
let isPreloading = false;
function stat(filename) {
filename = path.toNamespacedPath(filename);
if (statCache !== null) {
const result = statCache.get(filename);
if (result !== undefined) return result;
}
const result = internalModuleStat(filename);
if (statCache !== null && result >= 0) {
// Only set cache when `internalModuleStat(filename)` succeeds.
statCache.set(filename, result);
}
return result;
}
function updateChildren(parent, child, scan) {
const children = parent?.children;
if (children && !(scan && ArrayPrototypeIncludes(children, child)))
ArrayPrototypePush(children, child);
}
const moduleParentCache = new SafeWeakMap();
function Module(id = '', parent) {
this.id = id;
this.path = path.dirname(id);
this.exports = {};
moduleParentCache.set(this, parent);
updateChildren(parent, this, false);
this.filename = null;
this.loaded = false;
this.children = [];
}
const builtinModules = [];
for (const { 0: id, 1: mod } of NativeModule.map) {
if (mod.canBeRequiredByUsers &&
NativeModule.canBeRequiredWithoutScheme(id)) {
ArrayPrototypePush(builtinModules, id);
}
}
const allBuiltins = new SafeSet(
ArrayPrototypeFlatMap(builtinModules, (bm) => [bm, `node:${bm}`])
);
NativeModule.getSchemeOnlyModuleNames().forEach((builtin) => allBuiltins.add(`node:${builtin}`));
ObjectFreeze(builtinModules);
Module.builtinModules = builtinModules;
Module._cache = ObjectCreate(null);
Module._pathCache = ObjectCreate(null);
Module._extensions = ObjectCreate(null);
let modulePaths = [];
Module.globalPaths = [];
let patched = false;
// eslint-disable-next-line func-style
let wrap = function(script) {
return Module.wrapper[0] + script + Module.wrapper[1];
};
const wrapper = [
'(function (exports, require, module, __filename, __dirname) { ',
'\n});',
];
let wrapperProxy = new Proxy(wrapper, {
__proto__: null,
set(target, property, value, receiver) {
patched = true;
return ReflectSet(target, property, value, receiver);
},
defineProperty(target, property, descriptor) {
patched = true;
return ObjectDefineProperty(target, property, descriptor);
}
});
ObjectDefineProperty(Module, 'wrap', {
__proto__: null,
get() {
return wrap;
},
set(value) {
patched = true;
wrap = value;
}
});
ObjectDefineProperty(Module, 'wrapper', {
__proto__: null,
get() {
return wrapperProxy;
},
set(value) {
patched = true;
wrapperProxy = value;
}
});
const isPreloadingDesc = { get() { return isPreloading; } };
ObjectDefineProperty(Module.prototype, 'isPreloading', isPreloadingDesc);
ObjectDefineProperty(NativeModule.prototype, 'isPreloading', isPreloadingDesc);
function getModuleParent() {
return moduleParentCache.get(this);
}
function setModuleParent(value) {
moduleParentCache.set(this, value);
}
ObjectDefineProperty(Module.prototype, 'parent', {
__proto__: null,
get: pendingDeprecation ? deprecate(
getModuleParent,
'module.parent is deprecated due to accuracy issues. Please use ' +
'require.main to find program entry point instead.',
'DEP0144'
) : getModuleParent,
set: pendingDeprecation ? deprecate(
setModuleParent,
'module.parent is deprecated due to accuracy issues. Please use ' +
'require.main to find program entry point instead.',
'DEP0144'
) : setModuleParent,
});
let debug = require('internal/util/debuglog').debuglog('module', (fn) => {
debug = fn;
});
Module._debug = deprecate(debug, 'Module._debug is deprecated.', 'DEP0077');
// Given a module name, and a list of paths to test, returns the first
// matching file in the following precedence.
//
// require("a.<ext>")
// -> a.<ext>
//
// require("a")
// -> a
// -> a.<ext>
// -> a/index.<ext>
const packageJsonCache = new SafeMap();
function readPackage(requestPath) {
const jsonPath = path.resolve(requestPath, 'package.json');
const existing = packageJsonCache.get(jsonPath);
if (existing !== undefined) return existing;
const result = packageJsonReader.read(jsonPath);
const json = result.containsKeys === false ? '{}' : result.string;
if (json === undefined) {
packageJsonCache.set(jsonPath, false);
return false;
}
try {
const parsed = JSONParse(json);
const filtered = {
name: parsed.name,
main: parsed.main,
exports: parsed.exports,
imports: parsed.imports,
type: parsed.type
};
packageJsonCache.set(jsonPath, filtered);
return filtered;
} catch (e) {
e.path = jsonPath;
e.message = 'Error parsing ' + jsonPath + ': ' + e.message;
throw e;
}
}
function readPackageScope(checkPath) {
const rootSeparatorIndex = StringPrototypeIndexOf(checkPath, sep);
let separatorIndex;
do {
separatorIndex = StringPrototypeLastIndexOf(checkPath, sep);
checkPath = StringPrototypeSlice(checkPath, 0, separatorIndex);
if (StringPrototypeEndsWith(checkPath, sep + 'node_modules'))
return false;
const pjson = readPackage(checkPath + sep);
if (pjson) return {
data: pjson,
path: checkPath,
};
} while (separatorIndex > rootSeparatorIndex);
return false;
}
function tryPackage(requestPath, exts, isMain, originalPath) {
const pkg = readPackage(requestPath)?.main;
if (!pkg) {
return tryExtensions(path.resolve(requestPath, 'index'), exts, isMain);
}
const filename = path.resolve(requestPath, pkg);
let actual = tryFile(filename, isMain) ||
tryExtensions(filename, exts, isMain) ||
tryExtensions(path.resolve(filename, 'index'), exts, isMain);
if (actual === false) {
actual = tryExtensions(path.resolve(requestPath, 'index'), exts, isMain);
if (!actual) {
// eslint-disable-next-line no-restricted-syntax
const err = new Error(
`Cannot find module '${filename}'. ` +
'Please verify that the package.json has a valid "main" entry'
);
err.code = 'MODULE_NOT_FOUND';
err.path = path.resolve(requestPath, 'package.json');
err.requestPath = originalPath;
// TODO(BridgeAR): Add the requireStack as well.
throw err;
} else {
const jsonPath = path.resolve(requestPath, 'package.json');
process.emitWarning(
`Invalid 'main' field in '${jsonPath}' of '${pkg}'. ` +
'Please either fix that or report it to the module author',
'DeprecationWarning',
'DEP0128'
);
}
}
return actual;
}
// In order to minimize unnecessary lstat() calls,
// this cache is a list of known-real paths.
// Set to an empty Map to reset.
const realpathCache = new SafeMap();
// Check if the file exists and is not a directory
// if using --preserve-symlinks and isMain is false,
// keep symlinks intact, otherwise resolve to the
// absolute realpath.
function tryFile(requestPath, isMain) {
const rc = stat(requestPath);
if (rc !== 0) return;
if (preserveSymlinks && !isMain) {
return path.resolve(requestPath);
}
return toRealPath(requestPath);
}
function toRealPath(requestPath) {
return fs.realpathSync(requestPath, {
[internalFS.realpathCacheKey]: realpathCache
});
}
// Given a path, check if the file exists with any of the set extensions
function tryExtensions(p, exts, isMain) {
for (let i = 0; i < exts.length; i++) {
const filename = tryFile(p + exts[i], isMain);
if (filename) {
return filename;
}
}
return false;
}
// Find the longest (possibly multi-dot) extension registered in
// Module._extensions
function findLongestRegisteredExtension(filename) {
const name = path.basename(filename);
let currentExtension;
let index;
let startIndex = 0;
while ((index = StringPrototypeIndexOf(name, '.', startIndex)) !== -1) {
startIndex = index + 1;
if (index === 0) continue; // Skip dotfiles like .gitignore
currentExtension = StringPrototypeSlice(name, index);
if (Module._extensions[currentExtension]) return currentExtension;
}
return '.js';
}
function trySelfParentPath(parent) {
if (!parent) return false;
if (parent.filename) {
return parent.filename;
} else if (parent.id === '<repl>' || parent.id === 'internal/preload') {
try {
return process.cwd() + path.sep;
} catch {
return false;
}
}
}
function trySelf(parentPath, request) {
if (!parentPath) return false;
const { data: pkg, path: pkgPath } = readPackageScope(parentPath) || {};
if (!pkg || pkg.exports === undefined) return false;
if (typeof pkg.name !== 'string') return false;
let expansion;
if (request === pkg.name) {
expansion = '.';
} else if (StringPrototypeStartsWith(request, `${pkg.name}/`)) {
expansion = '.' + StringPrototypeSlice(request, pkg.name.length);
} else {
return false;
}
try {
return finalizeEsmResolution(packageExportsResolve(
pathToFileURL(pkgPath + '/package.json'), expansion, pkg,
pathToFileURL(parentPath), cjsConditions), parentPath, pkgPath);
} catch (e) {
if (e.code === 'ERR_MODULE_NOT_FOUND')
throw createEsmNotFoundErr(request, pkgPath + '/package.json');
throw e;
}
}
// This only applies to requests of a specific form:
// 1. name/.*
// 2. @scope/name/.*
const EXPORTS_PATTERN = /^((?:@[^/\\%]+\/)?[^./\\%][^/\\%]*)(\/.*)?$/;
function resolveExports(nmPath, request) {
// The implementation's behavior is meant to mirror resolution in ESM.
const { 1: name, 2: expansion = '' } =
RegExpPrototypeExec(EXPORTS_PATTERN, request) || kEmptyObject;
if (!name)
return;
const pkgPath = path.resolve(nmPath, name);
const pkg = readPackage(pkgPath);
if (pkg?.exports != null) {
try {
return finalizeEsmResolution(packageExportsResolve(
pathToFileURL(pkgPath + '/package.json'), '.' + expansion, pkg, null,
cjsConditions), null, pkgPath);
} catch (e) {
if (e.code === 'ERR_MODULE_NOT_FOUND')
throw createEsmNotFoundErr(request, pkgPath + '/package.json');
throw e;
}
}
}
const trailingSlashRegex = /(?:^|\/)\.?\.$/;
Module._findPath = function(request, paths, isMain) {
const absoluteRequest = path.isAbsolute(request);
if (absoluteRequest) {
paths = [''];
} else if (!paths || paths.length === 0) {
return false;
}
const cacheKey = request + '\x00' + ArrayPrototypeJoin(paths, '\x00');
const entry = Module._pathCache[cacheKey];
if (entry)
return entry;
let exts;
let trailingSlash = request.length > 0 &&
StringPrototypeCharCodeAt(request, request.length - 1) ===
CHAR_FORWARD_SLASH;
if (!trailingSlash) {
trailingSlash = RegExpPrototypeExec(trailingSlashRegex, request) !== null;
}
// For each path
for (let i = 0; i < paths.length; i++) {
// Don't search further if path doesn't exist
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 = stat(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[cacheKey] = filename;
return filename;
}
}
return false;
};
// 'node_modules' character codes reversed
const nmChars = [ 115, 101, 108, 117, 100, 111, 109, 95, 101, 100, 111, 110 ];
const nmLen = nmChars.length;
if (isWindows) {
// 'from' is the __dirname of the module.
Module._nodeModulePaths = function(from) {
// Guarantee that 'from' is absolute.
from = path.resolve(from);
// note: this approach *only* works when the path is guaranteed
// to be absolute. Doing a fully-edge-case-correct path.split
// that works on both Windows and Posix is non-trivial.
// return root node_modules when path is 'D:\\'.
// path.resolve will make sure from.length >=3 in Windows.
if (StringPrototypeCharCodeAt(from, from.length - 1) ===
CHAR_BACKWARD_SLASH &&
StringPrototypeCharCodeAt(from, from.length - 2) === CHAR_COLON)
return [from + 'node_modules'];
const paths = [];
for (let i = from.length - 1, p = 0, last = from.length; i >= 0; --i) {
const code = StringPrototypeCharCodeAt(from, i);
// The path segment separator check ('\' and '/') was used to get
// node_modules path for every path segment.
// Use colon as an extra condition since we can get node_modules
// path for drive root like 'C:\node_modules' and don't need to
// parse drive name.
if (code === CHAR_BACKWARD_SLASH ||
code === CHAR_FORWARD_SLASH ||
code === CHAR_COLON) {
if (p !== nmLen)
ArrayPrototypePush(
paths,
StringPrototypeSlice(from, 0, last) + '\\node_modules'
);
last = i;
p = 0;
} else if (p !== -1) {
if (nmChars[p] === code) {
++p;
} else {
p = -1;
}
}
}
return paths;
};
} else { // posix
// 'from' is the __dirname of the module.
Module._nodeModulePaths = function(from) {
// Guarantee that 'from' is absolute.
from = path.resolve(from);
// Return early not only to avoid unnecessary work, but to *avoid* returning
// an array of two items for a root: [ '//node_modules', '/node_modules' ]
if (from === '/')
return ['/node_modules'];
// note: this approach *only* works when the path is guaranteed
// to be absolute. Doing a fully-edge-case-correct path.split
// that works on both Windows and Posix is non-trivial.
const paths = [];
for (let i = from.length - 1, p = 0, last = from.length; i >= 0; --i) {
const code = StringPrototypeCharCodeAt(from, i);
if (code === CHAR_FORWARD_SLASH) {
if (p !== nmLen)
ArrayPrototypePush(
paths,
StringPrototypeSlice(from, 0, last) + '/node_modules'
);
last = i;
p = 0;
} else if (p !== -1) {
if (nmChars[p] === code) {
++p;
} else {
p = -1;
}
}
}
// Append /node_modules to handle root paths.
ArrayPrototypePush(paths, '/node_modules');
return paths;
};
}
Module._resolveLookupPaths = function(request, parent) {
if (NativeModule.canBeRequiredByUsers(request) &&
NativeModule.canBeRequiredWithoutScheme(request)) {
debug('looking for %j in []', request);
return null;
}
// Check for node modules paths.
if (StringPrototypeCharAt(request, 0) !== '.' ||
(request.length > 1 &&
StringPrototypeCharAt(request, 1) !== '.' &&
StringPrototypeCharAt(request, 1) !== '/' &&
(!isWindows || StringPrototypeCharAt(request, 1) !== '\\'))) {
let paths = modulePaths;
if (parent?.paths?.length) {
paths = ArrayPrototypeConcat(parent.paths, paths);
}
debug('looking for %j in %j', request, paths);
return paths.length > 0 ? paths : null;
}
// In REPL, parent.filename is null.
if (!parent || !parent.id || !parent.filename) {
// Make require('./path/to/foo') work - normally the path is taken
// from realpath(__filename) but in REPL there is no filename
const mainPaths = ['.'];
debug('looking for %j in %j', request, mainPaths);
return mainPaths;
}
debug('RELATIVE: requested: %s from parent.id %s', request, parent.id);
const parentDir = [path.dirname(parent.filename)];
debug('looking for %j', parentDir);
return parentDir;
};
function emitCircularRequireWarning(prop) {
process.emitWarning(
`Accessing non-existent property '${String(prop)}' of module exports ` +
'inside circular dependency'
);
}
// A Proxy that can be used as the prototype of a module.exports object and
// warns when non-existent properties are accessed.
const CircularRequirePrototypeWarningProxy = new Proxy({}, {
__proto__: null,
get(target, prop) {
// Allow __esModule access in any case because it is used in the output
// of transpiled code to determine whether something comes from an
// ES module, and is not used as a regular key of `module.exports`.
if (prop in target || prop === '__esModule') return target[prop];
emitCircularRequireWarning(prop);
return undefined;
},
getOwnPropertyDescriptor(target, prop) {
if (ObjectPrototypeHasOwnProperty(target, prop) || prop === '__esModule')
return ObjectGetOwnPropertyDescriptor(target, prop);
emitCircularRequireWarning(prop);
return undefined;
}
});
function getExportsForCircularRequire(module) {
if (module.exports &&
!isProxy(module.exports) &&
ObjectGetPrototypeOf(module.exports) === ObjectPrototype &&
// Exclude transpiled ES6 modules / TypeScript code because those may
// employ unusual patterns for accessing 'module.exports'. That should
// be okay because ES6 modules have a different approach to circular
// dependencies anyway.
!module.exports.__esModule) {
// This is later unset once the module is done loading.
ObjectSetPrototypeOf(
module.exports, CircularRequirePrototypeWarningProxy);
}
return module.exports;
}
// Check the cache for the requested file.
// 1. If a module already exists in the cache: return its exports object.
// 2. If the module is native: call
// `NativeModule.prototype.compileForPublicLoader()` and return the exports.
// 3. Otherwise, create a new module for the file and save it to the cache.
// Then have it load the file contents before returning its exports
// object.
Module._load = function(request, parent, isMain) {
let relResolveCacheIdentifier;
if (parent) {
debug('Module._load REQUEST %s parent: %s', request, parent.id);
// Fast path for (lazy loaded) modules in the same directory. The indirect
// caching is required to allow cache invalidation without changing the old
// cache key names.
relResolveCacheIdentifier = `${parent.path}\x00${request}`;
const filename = relativeResolveCache[relResolveCacheIdentifier];
if (filename !== undefined) {
const cachedModule = Module._cache[filename];
if (cachedModule !== undefined) {
updateChildren(parent, cachedModule, true);
if (!cachedModule.loaded)
return getExportsForCircularRequire(cachedModule);
return cachedModule.exports;
}
delete relativeResolveCache[relResolveCacheIdentifier];
}
}
if (StringPrototypeStartsWith(request, 'node:')) {
// Slice 'node:' prefix
const id = StringPrototypeSlice(request, 5);
const module = loadNativeModule(id, request);
if (!module?.canBeRequiredByUsers) {
throw new ERR_UNKNOWN_BUILTIN_MODULE(request);
}
return module.exports;
}
const filename = Module._resolveFilename(request, parent, isMain);
const cachedModule = Module._cache[filename];
if (cachedModule !== undefined) {
updateChildren(parent, cachedModule, true);
if (!cachedModule.loaded) {
const parseCachedModule = cjsParseCache.get(cachedModule);
if (!parseCachedModule || parseCachedModule.loaded)
return getExportsForCircularRequire(cachedModule);
parseCachedModule.loaded = true;
} else {
return cachedModule.exports;
}
}
const mod = loadNativeModule(filename, request);
if (mod?.canBeRequiredByUsers &&
NativeModule.canBeRequiredWithoutScheme(filename)) {
return mod.exports;
}
// Don't call updateChildren(), Module constructor already does.
const module = cachedModule || new Module(filename, parent);
if (isMain) {
process.mainModule = module;
module.id = '.';
}
Module._cache[filename] = module;
if (parent !== undefined) {
relativeResolveCache[relResolveCacheIdentifier] = filename;
}
let threw = true;
try {
module.load(filename);
threw = false;
} finally {
if (threw) {
delete Module._cache[filename];
if (parent !== undefined) {
delete relativeResolveCache[relResolveCacheIdentifier];
const children = parent?.children;
if (ArrayIsArray(children)) {
const index = ArrayPrototypeIndexOf(children, module);
if (index !== -1) {
ArrayPrototypeSplice(children, index, 1);
}
}
}
} else if (module.exports &&
!isProxy(module.exports) &&
ObjectGetPrototypeOf(module.exports) ===
CircularRequirePrototypeWarningProxy) {
ObjectSetPrototypeOf(module.exports, ObjectPrototype);
}
}
return module.exports;
};
Module._resolveFilename = function(request, parent, isMain, options) {
if (
(
StringPrototypeStartsWith(request, 'node:') &&
NativeModule.canBeRequiredByUsers(StringPrototypeSlice(request, 5))
) || (
NativeModule.canBeRequiredByUsers(request) &&
NativeModule.canBeRequiredWithoutScheme(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 (request[0] === '#' && (parent?.filename || parent?.id === '<repl>')) {
const parentPath = parent?.filename ?? process.cwd() + path.sep;
const pkg = readPackageScope(parentPath) || {};
if (pkg.data?.imports != null) {
try {
return finalizeEsmResolution(
packageImportsResolve(request, pathToFileURL(parentPath),
cjsConditions), parentPath,
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 (RegExpPrototypeExec(encodedSepRegEx, resolved) !== null)
throw new ERR_INVALID_MODULE_SPECIFIER(
resolved, 'must not include encoded "/" or "\\" characters', parentPath);
const filename = fileURLToPath(resolved);
const actual = 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;
}
// Given a file name, pass it to the proper extension handler.
Module.prototype.load = function(filename) {
debug('load %j for module %j', filename, this.id);
assert(!this.loaded);
this.filename = filename;
this.paths = Module._nodeModulePaths(path.dirname(filename));
const extension = findLongestRegisteredExtension(filename);
// allow .mjs to be overridden
if (StringPrototypeEndsWith(filename, '.mjs') && !Module._extensions['.mjs'])
throw new ERR_REQUIRE_ESM(filename, true);
Module._extensions[extension](this, filename);
this.loaded = true;
const esmLoader = asyncESM.esmLoader;
// Create module entry at load time to snapshot exports correctly
const exports = this.exports;
// Preemptively cache
if ((module?.module === undefined ||
module.module.getStatus() < kEvaluated) &&
!esmLoader.cjsCache.has(this))
esmLoader.cjsCache.set(this, exports);
};
// Loads a module at the given file path. Returns that module's
// `exports` property.
Module.prototype.require = function(id) {
validateString(id, 'id');
if (id === '') {
throw new ERR_INVALID_ARG_VALUE('id', id,
'must be a non-empty string');
}
requireDepth++;
try {
return Module._load(id, this, /* isMain */ false);
} finally {
requireDepth--;
}
};
// Resolved path to process.argv[1] will be lazily placed here
// (needed for setting breakpoint when called with --inspect-brk)
let resolvedArgv;
let hasPausedEntry = false;
function wrapSafe(filename, content, cjsModuleInstance) {
if (patched) {
const wrapper = Module.wrap(content);
return vm.runInThisContext(wrapper, {
filename,
lineOffset: 0,
displayErrors: true,
importModuleDynamically: async (specifier, _, importAssertions) => {
const loader = asyncESM.esmLoader;
return loader.import(specifier, normalizeReferrerURL(filename),
importAssertions);
},
});
}
try {
return vm.compileFunction(content, [
'exports',
'require',
'module',
'__filename',
'__dirname',
], {
filename,
importModuleDynamically(specifier, _, importAssertions) {
const loader = asyncESM.esmLoader;
return loader.import(specifier, normalizeReferrerURL(filename),
importAssertions);
},
});
} catch (err) {
if (process.mainModule === cjsModuleInstance)
enrichCJSError(err, content);
throw err;
}
}
// Run the file contents in the correct scope or sandbox. Expose
// the correct helper variables (require, module, exports) to
// the file.
// Returns exception, if any.
Module.prototype._compile = function(content, filename) {
let moduleURL;
let redirects;
if (policy?.manifest) {
moduleURL = pathToFileURL(filename);
redirects = policy.manifest.getDependencyMapper(moduleURL);
policy.manifest.assertIntegrity(moduleURL, content);
}
maybeCacheSourceMap(filename, content, this);
const compiledWrapper = wrapSafe(filename, content, this);
let inspectorWrapper = null;
if (getOptionValue('--inspect-brk') && process._eval == null) {
if (!resolvedArgv) {
// We enter the repl if we're not given a filename argument.
if (process.argv[1]) {
try {
resolvedArgv = Module._resolveFilename(process.argv[1], null, false);
} catch {
// We only expect this codepath to be reached in the case of a
// preloaded module (it will fail earlier with the main entry)
assert(ArrayIsArray(getOptionValue('--require')));
}
} else {
resolvedArgv = 'repl';
}
}
// Set breakpoint on module start
if (resolvedArgv && !hasPausedEntry && filename === resolvedArgv) {
hasPausedEntry = true;
inspectorWrapper = internalBinding('inspector').callAndPauseOnStart;
}
}
const dirname = path.dirname(filename);
const require = makeRequireFunction(this, redirects);
let result;
const exports = this.exports;
const thisValue = exports;
const module = this;
if (requireDepth === 0) statCache = new SafeMap();
if (inspectorWrapper) {
result = inspectorWrapper(compiledWrapper, thisValue, exports,
require, module, filename, dirname);
} else {
result = ReflectApply(compiledWrapper, thisValue,
[exports, require, module, filename, dirname]);
}
hasLoadedAnyUserCJSModule = true;
if (requireDepth === 0) statCache = null;
return result;
};
// Native extension for .js
Module._extensions['.js'] = function(module, filename) {
// If already analyzed the source, then it will be cached.
const cached = cjsParseCache.get(module);
let content;
if (cached?.source) {
content = cached.source;
cached.source = undefined;
} else {
content = fs.readFileSync(filename, 'utf8');
}
if (StringPrototypeEndsWith(filename, '.js')) {
const pkg = readPackageScope(filename);
// Function require shouldn't be used in ES modules.
if (pkg?.data?.type === 'module') {
const parent = moduleParentCache.get(module);
const parentPath = parent?.filename;
const packageJsonPath = path.resolve(pkg.path, 'package.json');
const usesEsm = hasEsmSyntax(content);
const err = new ERR_REQUIRE_ESM(filename, usesEsm, parentPath,
packageJsonPath);
// Attempt to reconstruct the parent require frame.
if (Module._cache[parentPath]) {
let parentSource;
try {
parentSource = fs.readFileSync(parentPath, 'utf8');
} catch {
// Continue regardless of error.
}
if (parentSource) {
const errLine = StringPrototypeSplit(
StringPrototypeSlice(err.stack, StringPrototypeIndexOf(
err.stack, ' at ')), '\n', 1)[0];
const { 1: line, 2: col } =
RegExpPrototypeExec(/(\d+):(\d+)\)/, errLine) || [];
if (line && col) {
const srcLine = StringPrototypeSplit(parentSource, '\n')[line - 1];
const frame = `${parentPath}:${line}\n${srcLine}\n${
StringPrototypeRepeat(' ', col - 1)}^\n`;
setArrowMessage(err, frame);
}
}
}
throw err;
}
}
module._compile(content, filename);
};
// Native extension for .json
Module._extensions['.json'] = function(module, filename) {
const content = fs.readFileSync(filename, 'utf8');
if (policy?.manifest) {
const moduleURL = pathToFileURL(filename);
policy.manifest.assertIntegrity(moduleURL, content);
}
try {
module.exports = JSONParse(stripBOM(content));
} catch (err) {
err.message = filename + ': ' + err.message;
throw err;
}
};
// Native extension for .node
Module._extensions['.node'] = function(module, filename) {
if (policy?.manifest) {
const content = fs.readFileSync(filename);
const moduleURL = pathToFileURL(filename);
policy.manifest.assertIntegrity(moduleURL, content);
}
// Be aware this doesn't use `content`
return process.dlopen(module, path.toNamespacedPath(filename));
};
function createRequireFromPath(filename) {
// Allow a directory to be passed as the filename
const trailingSlash =
StringPrototypeEndsWith(filename, '/') ||
(isWindows && StringPrototypeEndsWith(filename, '\\'));
const proxyPath = trailingSlash ?
path.join(filename, 'noop.js') :
filename;
const m = new Module(proxyPath);
m.filename = proxyPath;
m.paths = Module._nodeModulePaths(m.path);
return makeRequireFunction(m, null);
}
const createRequireError = 'must be a file URL object, file URL string, or ' +
'absolute path string';
function createRequire(filename) {
let filepath;
if (isURLInstance(filename) ||
(typeof filename === 'string' && !path.isAbsolute(filename))) {
try {
filepath = fileURLToPath(filename);
} catch {
throw new ERR_INVALID_ARG_VALUE('filename', filename,
createRequireError);
}
} else if (typeof filename !== 'string') {
throw new ERR_INVALID_ARG_VALUE('filename', filename, createRequireError);
} else {
filepath = filename;
}
return createRequireFromPath(filepath);
}
Module.createRequire = createRequire;
Module._initPaths = function() {
const homeDir = isWindows ? process.env.USERPROFILE : safeGetenv('HOME');
const nodePath = isWindows ? process.env.NODE_PATH : safeGetenv('NODE_PATH');
// process.execPath is $PREFIX/bin/node except on Windows where it is
// $PREFIX\node.exe where $PREFIX is the root of the Node.js installation.
const prefixDir = isWindows ?
path.resolve(process.execPath, '..') :
path.resolve(process.execPath, '..', '..');
const paths = [path.resolve(prefixDir, 'lib', 'node')];
if (homeDir) {
ArrayPrototypeUnshift(paths, path.resolve(homeDir, '.node_libraries'));
ArrayPrototypeUnshift(paths, path.resolve(homeDir, '.node_modules'));
}
if (nodePath) {
ArrayPrototypeUnshiftApply(paths, ArrayPrototypeFilter(
StringPrototypeSplit(nodePath, path.delimiter),
Boolean
));
}
modulePaths = paths;
// Clone as a shallow copy, for introspection.
Module.globalPaths = ArrayPrototypeSlice(modulePaths);
};
Module._preloadModules = function(requests) {
if (!ArrayIsArray(requests))
return;
isPreloading = true;
// Preloaded modules have a dummy parent module which is deemed to exist
// in the current working directory. This seeds the search path for
// preloaded modules.
const parent = new Module('internal/preload', null);
try {
parent.paths = Module._nodeModulePaths(process.cwd());
} catch (e) {
if (e.code !== 'ENOENT') {
isPreloading = false;
throw e;
}
}
for (let n = 0; n < requests.length; n++)
parent.require(requests[n]);
isPreloading = false;
};
Module.syncBuiltinESMExports = function syncBuiltinESMExports() {
for (const mod of NativeModule.map.values()) {
if (mod.canBeRequiredByUsers &&
NativeModule.canBeRequiredWithoutScheme(mod.id)) {
mod.syncExports();
}
}
};
Module.isBuiltin = function isBuiltin(moduleName) {
return allBuiltins.has(moduleName);
};
// Backwards compatibility
Module.Module = Module;
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