971 lines
32 KiB
JavaScript
971 lines
32 KiB
JavaScript
// Copied from https://raw.githubusercontent.com/nodejs/node/v15.3.0/lib/internal/modules/esm/resolve.js
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// Then modified to suite our needs.
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// Formatting is intentionally bad to keep the diff as small as possible, to make it easier to merge
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// upstream changes and understand our modifications.
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'use strict';
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const [nodeMajor, nodeMinor, nodePatch] = process.versions.node.split('.').map(s => parseInt(s, 10))
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// Test for 14.13.1 or higher
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const builtinModuleProtocol = nodeMajor > 14 || (
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nodeMajor === 14 && (
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nodeMinor > 13 || (
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nodeMinor === 13 && nodePatch > 0
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)
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)
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)
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? 'node:'
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: 'nodejs:';
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const {
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ArrayIsArray,
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ArrayPrototypeJoin,
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ArrayPrototypeShift,
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JSONParse,
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JSONStringify,
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ObjectFreeze,
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ObjectGetOwnPropertyNames,
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ObjectPrototypeHasOwnProperty,
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// RegExp,
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RegExpPrototypeTest,
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SafeMap,
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SafeSet,
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// String,
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StringPrototypeEndsWith,
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StringPrototypeIndexOf,
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StringPrototypeLastIndexOf,
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StringPrototypeReplace,
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StringPrototypeSlice,
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StringPrototypeSplit,
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StringPrototypeStartsWith,
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StringPrototypeSubstr,
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} = require('./node-primordials');
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// const internalFS = require('internal/fs/utils');
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// const { NativeModule } = require('internal/bootstrap/loaders');
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const Module = require('module')
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const NativeModule = {
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canBeRequiredByUsers(specifier) {
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return Module.builtinModules.includes(specifier)
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}
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}
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const {
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realpathSync,
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statSync,
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Stats,
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} = require('fs');
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// const { getOptionValue } = require('internal/options');
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const { getOptionValue } = require('./node-options');
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// // Do not eagerly grab .manifest, it may be in TDZ
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// const policy = getOptionValue('--experimental-policy') ?
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// require('internal/process/policy') :
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// null;
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// disabled for now. I am not sure if/how we should support this
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const policy = null;
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const { sep, relative } = require('path');
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const preserveSymlinks = getOptionValue('--preserve-symlinks');
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const preserveSymlinksMain = getOptionValue('--preserve-symlinks-main');
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const typeFlag = getOptionValue('--input-type');
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// const { URL, pathToFileURL, fileURLToPath } = require('internal/url');
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const { URL, pathToFileURL, fileURLToPath } = require('url');
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const {
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ERR_INPUT_TYPE_NOT_ALLOWED,
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ERR_INVALID_ARG_VALUE,
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ERR_INVALID_MODULE_SPECIFIER,
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ERR_INVALID_PACKAGE_CONFIG,
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ERR_INVALID_PACKAGE_TARGET,
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ERR_MANIFEST_DEPENDENCY_MISSING,
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ERR_MODULE_NOT_FOUND,
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ERR_PACKAGE_IMPORT_NOT_DEFINED,
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ERR_PACKAGE_PATH_NOT_EXPORTED,
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ERR_UNSUPPORTED_DIR_IMPORT,
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ERR_UNSUPPORTED_ESM_URL_SCHEME,
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// } = require('internal/errors').codes;
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} = require('./node-errors').codes;
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// const { Module: CJSModule } = require('internal/modules/cjs/loader');
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const CJSModule = Module;
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// const packageJsonReader = require('internal/modules/package_json_reader');
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const packageJsonReader = require('./node-package-json-reader');
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const userConditions = getOptionValue('--conditions');
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const DEFAULT_CONDITIONS = ObjectFreeze(['node', 'import', ...userConditions]);
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const DEFAULT_CONDITIONS_SET = new SafeSet(DEFAULT_CONDITIONS);
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const pendingDeprecation = getOptionValue('--pending-deprecation');
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function createResolve(opts) {
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// TODO receive cached fs implementations here
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const {tsExtensions, jsExtensions, preferTsExts} = opts;
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const emittedPackageWarnings = new SafeSet();
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function emitFolderMapDeprecation(match, pjsonUrl, isExports, base) {
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const pjsonPath = fileURLToPath(pjsonUrl);
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if (!pendingDeprecation) {
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const nodeModulesIndex = StringPrototypeLastIndexOf(pjsonPath,
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'/node_modules/');
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if (nodeModulesIndex !== -1) {
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const afterNodeModulesPath = StringPrototypeSlice(pjsonPath,
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nodeModulesIndex + 14,
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-13);
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try {
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const { packageSubpath } = parsePackageName(afterNodeModulesPath);
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if (packageSubpath === '.')
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return;
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} catch {}
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}
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}
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if (emittedPackageWarnings.has(pjsonPath + '|' + match))
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return;
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emittedPackageWarnings.add(pjsonPath + '|' + match);
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process.emitWarning(
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`Use of deprecated folder mapping "${match}" in the ${isExports ?
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'"exports"' : '"imports"'} field module resolution of the package at ${
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pjsonPath}${base ? ` imported from ${fileURLToPath(base)}` : ''}.\n` +
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`Update this package.json to use a subpath pattern like "${match}*".`,
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'DeprecationWarning',
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'DEP0148'
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);
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}
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function getConditionsSet(conditions) {
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if (conditions !== undefined && conditions !== DEFAULT_CONDITIONS) {
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if (!ArrayIsArray(conditions)) {
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throw new ERR_INVALID_ARG_VALUE('conditions', conditions,
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'expected an array');
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}
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return new SafeSet(conditions);
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}
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return DEFAULT_CONDITIONS_SET;
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}
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const realpathCache = new SafeMap();
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const packageJSONCache = new SafeMap(); /* string -> PackageConfig */
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function tryStatSync(path) {
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try {
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return statSync(path);
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} catch {
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return new Stats();
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}
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}
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function getPackageConfig(path, specifier, base) {
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const existing = packageJSONCache.get(path);
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if (existing !== undefined) {
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return existing;
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}
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const source = packageJsonReader.read(path).string;
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if (source === undefined) {
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const packageConfig = {
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pjsonPath: path,
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exists: false,
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main: undefined,
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name: undefined,
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type: 'none',
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exports: undefined,
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imports: undefined,
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};
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packageJSONCache.set(path, packageConfig);
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return packageConfig;
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}
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let packageJSON;
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try {
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packageJSON = JSONParse(source);
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} catch (error) {
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throw new ERR_INVALID_PACKAGE_CONFIG(
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path,
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(base ? `"${specifier}" from ` : '') + fileURLToPath(base || specifier),
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error.message
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);
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}
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let { imports, main, name, type } = packageJSON;
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const { exports } = packageJSON;
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if (typeof imports !== 'object' || imports === null) imports = undefined;
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if (typeof main !== 'string') main = undefined;
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if (typeof name !== 'string') name = undefined;
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// Ignore unknown types for forwards compatibility
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if (type !== 'module' && type !== 'commonjs') type = 'none';
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const packageConfig = {
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pjsonPath: path,
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exists: true,
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main,
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name,
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type,
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exports,
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imports,
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};
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packageJSONCache.set(path, packageConfig);
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return packageConfig;
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}
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function getPackageScopeConfig(resolved) {
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let packageJSONUrl = new URL('./package.json', resolved);
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while (true) {
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const packageJSONPath = packageJSONUrl.pathname;
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if (StringPrototypeEndsWith(packageJSONPath, 'node_modules/package.json'))
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break;
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const packageConfig = getPackageConfig(fileURLToPath(packageJSONUrl),
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resolved);
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if (packageConfig.exists) return packageConfig;
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const lastPackageJSONUrl = packageJSONUrl;
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packageJSONUrl = new URL('../package.json', packageJSONUrl);
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// Terminates at root where ../package.json equals ../../package.json
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// (can't just check "/package.json" for Windows support).
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if (packageJSONUrl.pathname === lastPackageJSONUrl.pathname) break;
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}
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const packageJSONPath = fileURLToPath(packageJSONUrl);
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const packageConfig = {
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pjsonPath: packageJSONPath,
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exists: false,
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main: undefined,
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name: undefined,
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type: 'none',
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exports: undefined,
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imports: undefined,
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};
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packageJSONCache.set(packageJSONPath, packageConfig);
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return packageConfig;
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}
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/*
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* Legacy CommonJS main resolution:
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* 1. let M = pkg_url + (json main field)
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* 2. TRY(M, M.js, M.json, M.node)
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* 3. TRY(M/index.js, M/index.json, M/index.node)
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* 4. TRY(pkg_url/index.js, pkg_url/index.json, pkg_url/index.node)
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* 5. NOT_FOUND
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*/
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function fileExists(url) {
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return tryStatSync(fileURLToPath(url)).isFile();
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}
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function legacyMainResolve(packageJSONUrl, packageConfig, base) {
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let guess;
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if (packageConfig.main !== undefined) {
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// Note: fs check redundances will be handled by Descriptor cache here.
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if (fileExists(guess = new URL(`./${packageConfig.main}`,
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packageJSONUrl))) {
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return guess;
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}
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if (fileExists(guess = new URL(`./${packageConfig.main}.js`,
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packageJSONUrl))) {
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return guess;
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}
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if (fileExists(guess = new URL(`./${packageConfig.main}.json`,
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packageJSONUrl))) {
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return guess;
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}
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if (fileExists(guess = new URL(`./${packageConfig.main}.node`,
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packageJSONUrl))) {
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return guess;
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}
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if (fileExists(guess = new URL(`./${packageConfig.main}/index.js`,
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packageJSONUrl))) {
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return guess;
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}
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if (fileExists(guess = new URL(`./${packageConfig.main}/index.json`,
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packageJSONUrl))) {
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return guess;
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}
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if (fileExists(guess = new URL(`./${packageConfig.main}/index.node`,
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packageJSONUrl))) {
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return guess;
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}
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// Fallthrough.
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}
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if (fileExists(guess = new URL('./index.js', packageJSONUrl))) {
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return guess;
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}
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// So fs.
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if (fileExists(guess = new URL('./index.json', packageJSONUrl))) {
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return guess;
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}
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if (fileExists(guess = new URL('./index.node', packageJSONUrl))) {
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return guess;
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}
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// Not found.
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throw new ERR_MODULE_NOT_FOUND(
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fileURLToPath(new URL('.', packageJSONUrl)), fileURLToPath(base));
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}
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function resolveExtensionsWithTryExactName(search) {
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if (fileExists(search)) return search;
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const resolvedReplacementExtension = resolveReplacementExtensions(search);
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if(resolvedReplacementExtension) return resolvedReplacementExtension;
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return resolveExtensions(search);
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}
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const extensions = Array.from(new Set([
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...(preferTsExts ? tsExtensions : []),
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'.js',
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...jsExtensions,
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'.json', '.node', '.mjs',
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...tsExtensions
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]));
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function resolveExtensions(search) {
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for (let i = 0; i < extensions.length; i++) {
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const extension = extensions[i];
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const guess = new URL(`${search.pathname}${extension}`, search);
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if (fileExists(guess)) return guess;
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}
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return undefined;
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}
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/**
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* TS's resolver can resolve foo.js to foo.ts, by replacing .js extension with several source extensions.
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* IMPORTANT: preserve ordering according to preferTsExts; this affects resolution behavior!
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*/
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const replacementExtensions = extensions.filter(ext => ['.js', '.jsx', '.ts', '.tsx'].includes(ext));
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function resolveReplacementExtensions(search) {
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if (search.pathname.match(/\.js$/)) {
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const pathnameWithoutExtension = search.pathname.slice(0, search.pathname.length - 3);
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for (let i = 0; i < replacementExtensions.length; i++) {
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const extension = replacementExtensions[i];
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const guess = new URL(search.toString());
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guess.pathname = `${pathnameWithoutExtension}${extension}`;
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if (fileExists(guess)) return guess;
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}
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}
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return undefined;
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}
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function resolveIndex(search) {
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return resolveExtensions(new URL('index', search));
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}
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const encodedSepRegEx = /%2F|%2C/i;
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function finalizeResolution(resolved, base) {
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if (RegExpPrototypeTest(encodedSepRegEx, resolved.pathname))
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throw new ERR_INVALID_MODULE_SPECIFIER(
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resolved.pathname, 'must not include encoded "/" or "\\" characters',
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fileURLToPath(base));
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if (getOptionValue('--experimental-specifier-resolution') === 'node') {
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const path = fileURLToPath(resolved);
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let file = resolveExtensionsWithTryExactName(resolved);
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if (file !== undefined) return file;
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if (!StringPrototypeEndsWith(path, '/')) {
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file = resolveIndex(new URL(`${resolved}/`));
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if (file !== undefined) return file;
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} else {
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return resolveIndex(resolved) || resolved;
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}
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throw new ERR_MODULE_NOT_FOUND(
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resolved.pathname, fileURLToPath(base), 'module');
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}
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const file = resolveReplacementExtensions(resolved) || resolved;
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const path = fileURLToPath(file);
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const stats = tryStatSync(StringPrototypeEndsWith(path, '/') ?
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StringPrototypeSlice(path, -1) : path);
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if (stats.isDirectory()) {
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const err = new ERR_UNSUPPORTED_DIR_IMPORT(path, fileURLToPath(base));
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err.url = String(resolved);
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throw err;
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} else if (!stats.isFile()) {
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throw new ERR_MODULE_NOT_FOUND(
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path || resolved.pathname, fileURLToPath(base), 'module');
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}
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return file;
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}
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function throwImportNotDefined(specifier, packageJSONUrl, base) {
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throw new ERR_PACKAGE_IMPORT_NOT_DEFINED(
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specifier, packageJSONUrl && fileURLToPath(new URL('.', packageJSONUrl)),
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fileURLToPath(base));
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}
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function throwExportsNotFound(subpath, packageJSONUrl, base) {
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throw new ERR_PACKAGE_PATH_NOT_EXPORTED(
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fileURLToPath(new URL('.', packageJSONUrl)), subpath,
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base && fileURLToPath(base));
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}
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function throwInvalidSubpath(subpath, packageJSONUrl, internal, base) {
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const reason = `request is not a valid subpath for the "${internal ?
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'imports' : 'exports'}" resolution of ${fileURLToPath(packageJSONUrl)}`;
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throw new ERR_INVALID_MODULE_SPECIFIER(subpath, reason,
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base && fileURLToPath(base));
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}
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|
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function throwInvalidPackageTarget(
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subpath, target, packageJSONUrl, internal, base) {
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if (typeof target === 'object' && target !== null) {
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target = JSONStringify(target, null, '');
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} else {
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target = `${target}`;
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}
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throw new ERR_INVALID_PACKAGE_TARGET(
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fileURLToPath(new URL('.', packageJSONUrl)), subpath, target,
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internal, base && fileURLToPath(base));
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}
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|
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const invalidSegmentRegEx = /(^|\\|\/)(\.\.?|node_modules)(\\|\/|$)/;
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const patternRegEx = /\*/g;
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|
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function resolvePackageTargetString(
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target, subpath, match, packageJSONUrl, base, pattern, internal, conditions) {
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if (subpath !== '' && !pattern && target[target.length - 1] !== '/')
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throwInvalidPackageTarget(match, target, packageJSONUrl, internal, base);
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|
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if (!StringPrototypeStartsWith(target, './')) {
|
|
if (internal && !StringPrototypeStartsWith(target, '../') &&
|
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!StringPrototypeStartsWith(target, '/')) {
|
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let isURL = false;
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try {
|
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new URL(target);
|
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isURL = true;
|
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} catch {}
|
|
if (!isURL) {
|
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const exportTarget = pattern ?
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StringPrototypeReplace(target, patternRegEx, subpath) :
|
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target + subpath;
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return packageResolve(exportTarget, packageJSONUrl, conditions);
|
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}
|
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}
|
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throwInvalidPackageTarget(match, target, packageJSONUrl, internal, base);
|
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}
|
|
|
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if (RegExpPrototypeTest(invalidSegmentRegEx, StringPrototypeSlice(target, 2)))
|
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throwInvalidPackageTarget(match, target, packageJSONUrl, internal, base);
|
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|
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const resolved = new URL(target, packageJSONUrl);
|
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const resolvedPath = resolved.pathname;
|
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const packagePath = new URL('.', packageJSONUrl).pathname;
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|
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if (!StringPrototypeStartsWith(resolvedPath, packagePath))
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throwInvalidPackageTarget(match, target, packageJSONUrl, internal, base);
|
|
|
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if (subpath === '') return resolved;
|
|
|
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if (RegExpPrototypeTest(invalidSegmentRegEx, subpath))
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throwInvalidSubpath(match + subpath, packageJSONUrl, internal, base);
|
|
|
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if (pattern)
|
|
return new URL(StringPrototypeReplace(resolved.href, patternRegEx,
|
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subpath));
|
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return new URL(subpath, resolved);
|
|
}
|
|
|
|
/**
|
|
* @param {string} key
|
|
* @returns {boolean}
|
|
*/
|
|
function isArrayIndex(key) {
|
|
const keyNum = +key;
|
|
if (`${keyNum}` !== key) return false;
|
|
return keyNum >= 0 && keyNum < 0xFFFF_FFFF;
|
|
}
|
|
|
|
function resolvePackageTarget(packageJSONUrl, target, subpath, packageSubpath,
|
|
base, pattern, internal, conditions) {
|
|
if (typeof target === 'string') {
|
|
return resolvePackageTargetString(
|
|
target, subpath, packageSubpath, packageJSONUrl, base, pattern, internal,
|
|
conditions);
|
|
} else if (ArrayIsArray(target)) {
|
|
if (target.length === 0)
|
|
return null;
|
|
|
|
let lastException;
|
|
for (let i = 0; i < target.length; i++) {
|
|
const targetItem = target[i];
|
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let resolved;
|
|
try {
|
|
resolved = resolvePackageTarget(
|
|
packageJSONUrl, targetItem, subpath, packageSubpath, base, pattern,
|
|
internal, conditions);
|
|
} catch (e) {
|
|
lastException = e;
|
|
if (e.code === 'ERR_INVALID_PACKAGE_TARGET')
|
|
continue;
|
|
throw e;
|
|
}
|
|
if (resolved === undefined)
|
|
continue;
|
|
if (resolved === null) {
|
|
lastException = null;
|
|
continue;
|
|
}
|
|
return resolved;
|
|
}
|
|
if (lastException === undefined || lastException === null)
|
|
return lastException;
|
|
throw lastException;
|
|
} else if (typeof target === 'object' && target !== null) {
|
|
const keys = ObjectGetOwnPropertyNames(target);
|
|
for (let i = 0; i < keys.length; i++) {
|
|
const key = keys[i];
|
|
if (isArrayIndex(key)) {
|
|
throw new ERR_INVALID_PACKAGE_CONFIG(
|
|
fileURLToPath(packageJSONUrl), base,
|
|
'"exports" cannot contain numeric property keys.');
|
|
}
|
|
}
|
|
for (let i = 0; i < keys.length; i++) {
|
|
const key = keys[i];
|
|
if (key === 'default' || conditions.has(key)) {
|
|
const conditionalTarget = target[key];
|
|
const resolved = resolvePackageTarget(
|
|
packageJSONUrl, conditionalTarget, subpath, packageSubpath, base,
|
|
pattern, internal, conditions);
|
|
if (resolved === undefined)
|
|
continue;
|
|
return resolved;
|
|
}
|
|
}
|
|
return undefined;
|
|
} else if (target === null) {
|
|
return null;
|
|
}
|
|
throwInvalidPackageTarget(packageSubpath, target, packageJSONUrl, internal,
|
|
base);
|
|
}
|
|
|
|
function isConditionalExportsMainSugar(exports, packageJSONUrl, base) {
|
|
if (typeof exports === 'string' || ArrayIsArray(exports)) return true;
|
|
if (typeof exports !== 'object' || exports === null) return false;
|
|
|
|
const keys = ObjectGetOwnPropertyNames(exports);
|
|
let isConditionalSugar = false;
|
|
let i = 0;
|
|
for (let j = 0; j < keys.length; j++) {
|
|
const key = keys[j];
|
|
const curIsConditionalSugar = key === '' || key[0] !== '.';
|
|
if (i++ === 0) {
|
|
isConditionalSugar = curIsConditionalSugar;
|
|
} else if (isConditionalSugar !== curIsConditionalSugar) {
|
|
throw new ERR_INVALID_PACKAGE_CONFIG(
|
|
fileURLToPath(packageJSONUrl), base,
|
|
'"exports" cannot contain some keys starting with \'.\' and some not.' +
|
|
' The exports object must either be an object of package subpath keys' +
|
|
' or an object of main entry condition name keys only.');
|
|
}
|
|
}
|
|
return isConditionalSugar;
|
|
}
|
|
|
|
/**
|
|
* @param {URL} packageJSONUrl
|
|
* @param {string} packageSubpath
|
|
* @param {object} packageConfig
|
|
* @param {string} base
|
|
* @param {Set<string>} conditions
|
|
* @returns {URL}
|
|
*/
|
|
function packageExportsResolve(
|
|
packageJSONUrl, packageSubpath, packageConfig, base, conditions) {
|
|
let exports = packageConfig.exports;
|
|
if (isConditionalExportsMainSugar(exports, packageJSONUrl, base))
|
|
exports = { '.': exports };
|
|
|
|
if (ObjectPrototypeHasOwnProperty(exports, packageSubpath)) {
|
|
const target = exports[packageSubpath];
|
|
const resolved = resolvePackageTarget(
|
|
packageJSONUrl, target, '', packageSubpath, base, false, false, conditions
|
|
);
|
|
if (resolved === null || resolved === undefined)
|
|
throwExportsNotFound(packageSubpath, packageJSONUrl, base);
|
|
return { resolved, exact: true };
|
|
}
|
|
|
|
let bestMatch = '';
|
|
const keys = ObjectGetOwnPropertyNames(exports);
|
|
for (let i = 0; i < keys.length; i++) {
|
|
const key = keys[i];
|
|
if (key[key.length - 1] === '*' &&
|
|
StringPrototypeStartsWith(packageSubpath,
|
|
StringPrototypeSlice(key, 0, -1)) &&
|
|
packageSubpath.length >= key.length &&
|
|
key.length > bestMatch.length) {
|
|
bestMatch = key;
|
|
} else if (key[key.length - 1] === '/' &&
|
|
StringPrototypeStartsWith(packageSubpath, key) &&
|
|
key.length > bestMatch.length) {
|
|
bestMatch = key;
|
|
}
|
|
}
|
|
|
|
if (bestMatch) {
|
|
const target = exports[bestMatch];
|
|
const pattern = bestMatch[bestMatch.length - 1] === '*';
|
|
const subpath = StringPrototypeSubstr(packageSubpath, bestMatch.length -
|
|
(pattern ? 1 : 0));
|
|
const resolved = resolvePackageTarget(packageJSONUrl, target, subpath,
|
|
bestMatch, base, pattern, false,
|
|
conditions);
|
|
if (resolved === null || resolved === undefined)
|
|
throwExportsNotFound(packageSubpath, packageJSONUrl, base);
|
|
if (!pattern)
|
|
emitFolderMapDeprecation(bestMatch, packageJSONUrl, true, base);
|
|
return { resolved, exact: pattern };
|
|
}
|
|
|
|
throwExportsNotFound(packageSubpath, packageJSONUrl, base);
|
|
}
|
|
|
|
function packageImportsResolve(name, base, conditions) {
|
|
if (name === '#' || StringPrototypeStartsWith(name, '#/')) {
|
|
const reason = 'is not a valid internal imports specifier name';
|
|
throw new ERR_INVALID_MODULE_SPECIFIER(name, reason, fileURLToPath(base));
|
|
}
|
|
let packageJSONUrl;
|
|
const packageConfig = getPackageScopeConfig(base);
|
|
if (packageConfig.exists) {
|
|
packageJSONUrl = pathToFileURL(packageConfig.pjsonPath);
|
|
const imports = packageConfig.imports;
|
|
if (imports) {
|
|
if (ObjectPrototypeHasOwnProperty(imports, name)) {
|
|
const resolved = resolvePackageTarget(
|
|
packageJSONUrl, imports[name], '', name, base, false, true, conditions
|
|
);
|
|
if (resolved !== null)
|
|
return { resolved, exact: true };
|
|
} else {
|
|
let bestMatch = '';
|
|
const keys = ObjectGetOwnPropertyNames(imports);
|
|
for (let i = 0; i < keys.length; i++) {
|
|
const key = keys[i];
|
|
if (key[key.length - 1] === '*' &&
|
|
StringPrototypeStartsWith(name,
|
|
StringPrototypeSlice(key, 0, -1)) &&
|
|
name.length >= key.length &&
|
|
key.length > bestMatch.length) {
|
|
bestMatch = key;
|
|
} else if (key[key.length - 1] === '/' &&
|
|
StringPrototypeStartsWith(name, key) &&
|
|
key.length > bestMatch.length) {
|
|
bestMatch = key;
|
|
}
|
|
}
|
|
|
|
if (bestMatch) {
|
|
const target = imports[bestMatch];
|
|
const pattern = bestMatch[bestMatch.length - 1] === '*';
|
|
const subpath = StringPrototypeSubstr(name, bestMatch.length -
|
|
(pattern ? 1 : 0));
|
|
const resolved = resolvePackageTarget(
|
|
packageJSONUrl, target, subpath, bestMatch, base, pattern, true,
|
|
conditions);
|
|
if (resolved !== null) {
|
|
if (!pattern)
|
|
emitFolderMapDeprecation(bestMatch, packageJSONUrl, false, base);
|
|
return { resolved, exact: pattern };
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
throwImportNotDefined(name, packageJSONUrl, base);
|
|
}
|
|
|
|
function getPackageType(url) {
|
|
const packageConfig = getPackageScopeConfig(url);
|
|
return packageConfig.type;
|
|
}
|
|
|
|
function parsePackageName(specifier, base) {
|
|
let separatorIndex = StringPrototypeIndexOf(specifier, '/');
|
|
let validPackageName = true;
|
|
let isScoped = false;
|
|
if (specifier[0] === '@') {
|
|
isScoped = true;
|
|
if (separatorIndex === -1 || specifier.length === 0) {
|
|
validPackageName = false;
|
|
} else {
|
|
separatorIndex = StringPrototypeIndexOf(
|
|
specifier, '/', separatorIndex + 1);
|
|
}
|
|
}
|
|
|
|
const packageName = separatorIndex === -1 ?
|
|
specifier : StringPrototypeSlice(specifier, 0, separatorIndex);
|
|
|
|
// Package name cannot have leading . and cannot have percent-encoding or
|
|
// separators.
|
|
for (let i = 0; i < packageName.length; i++) {
|
|
if (packageName[i] === '%' || packageName[i] === '\\') {
|
|
validPackageName = false;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!validPackageName) {
|
|
throw new ERR_INVALID_MODULE_SPECIFIER(
|
|
specifier, 'is not a valid package name', fileURLToPath(base));
|
|
}
|
|
|
|
const packageSubpath = '.' + (separatorIndex === -1 ? '' :
|
|
StringPrototypeSlice(specifier, separatorIndex));
|
|
|
|
return { packageName, packageSubpath, isScoped };
|
|
}
|
|
|
|
/**
|
|
* @param {string} specifier
|
|
* @param {URL} base
|
|
* @param {Set<string>} conditions
|
|
* @returns {URL}
|
|
*/
|
|
function packageResolve(specifier, base, conditions) {
|
|
const { packageName, packageSubpath, isScoped } =
|
|
parsePackageName(specifier, base);
|
|
|
|
// ResolveSelf
|
|
const packageConfig = getPackageScopeConfig(base);
|
|
if (packageConfig.exists) {
|
|
const packageJSONUrl = pathToFileURL(packageConfig.pjsonPath);
|
|
if (packageConfig.name === packageName &&
|
|
packageConfig.exports !== undefined && packageConfig.exports !== null) {
|
|
return packageExportsResolve(
|
|
packageJSONUrl, packageSubpath, packageConfig, base, conditions
|
|
).resolved;
|
|
}
|
|
}
|
|
|
|
let packageJSONUrl =
|
|
new URL('./node_modules/' + packageName + '/package.json', base);
|
|
let packageJSONPath = fileURLToPath(packageJSONUrl);
|
|
let lastPath;
|
|
do {
|
|
const stat = tryStatSync(StringPrototypeSlice(packageJSONPath, 0,
|
|
packageJSONPath.length - 13));
|
|
if (!stat.isDirectory()) {
|
|
lastPath = packageJSONPath;
|
|
packageJSONUrl = new URL((isScoped ?
|
|
'../../../../node_modules/' : '../../../node_modules/') +
|
|
packageName + '/package.json', packageJSONUrl);
|
|
packageJSONPath = fileURLToPath(packageJSONUrl);
|
|
continue;
|
|
}
|
|
|
|
// Package match.
|
|
const packageConfig = getPackageConfig(packageJSONPath, specifier, base);
|
|
if (packageConfig.exports !== undefined && packageConfig.exports !== null)
|
|
return packageExportsResolve(
|
|
packageJSONUrl, packageSubpath, packageConfig, base, conditions
|
|
).resolved;
|
|
if (packageSubpath === '.')
|
|
return legacyMainResolve(packageJSONUrl, packageConfig, base);
|
|
return new URL(packageSubpath, packageJSONUrl);
|
|
// Cross-platform root check.
|
|
} while (packageJSONPath.length !== lastPath.length);
|
|
|
|
// eslint can't handle the above code.
|
|
// eslint-disable-next-line no-unreachable
|
|
throw new ERR_MODULE_NOT_FOUND(packageName, fileURLToPath(base));
|
|
}
|
|
|
|
function isBareSpecifier(specifier) {
|
|
return specifier[0] && specifier[0] !== '/' && specifier[0] !== '.';
|
|
}
|
|
|
|
function isRelativeSpecifier(specifier) {
|
|
if (specifier[0] === '.') {
|
|
if (specifier.length === 1 || specifier[1] === '/') return true;
|
|
if (specifier[1] === '.') {
|
|
if (specifier.length === 2 || specifier[2] === '/') return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
function shouldBeTreatedAsRelativeOrAbsolutePath(specifier) {
|
|
if (specifier === '') return false;
|
|
if (specifier[0] === '/') return true;
|
|
return isRelativeSpecifier(specifier);
|
|
}
|
|
|
|
/**
|
|
* @param {string} specifier
|
|
* @param {URL} base
|
|
* @param {Set<string>} conditions
|
|
* @returns {URL}
|
|
*/
|
|
function moduleResolve(specifier, base, conditions) {
|
|
// Order swapped from spec for minor perf gain.
|
|
// Ok since relative URLs cannot parse as URLs.
|
|
let resolved;
|
|
if (shouldBeTreatedAsRelativeOrAbsolutePath(specifier)) {
|
|
resolved = new URL(specifier, base);
|
|
} else if (specifier[0] === '#') {
|
|
({ resolved } = packageImportsResolve(specifier, base, conditions));
|
|
} else {
|
|
try {
|
|
resolved = new URL(specifier);
|
|
} catch {
|
|
resolved = packageResolve(specifier, base, conditions);
|
|
}
|
|
}
|
|
return finalizeResolution(resolved, base);
|
|
}
|
|
|
|
/**
|
|
* Try to resolve an import as a CommonJS module
|
|
* @param {string} specifier
|
|
* @param {string} parentURL
|
|
* @returns {boolean|string}
|
|
*/
|
|
function resolveAsCommonJS(specifier, parentURL) {
|
|
try {
|
|
const parent = fileURLToPath(parentURL);
|
|
const tmpModule = new CJSModule(parent, null);
|
|
tmpModule.paths = CJSModule._nodeModulePaths(parent);
|
|
|
|
let found = CJSModule._resolveFilename(specifier, tmpModule, false);
|
|
|
|
// If it is a relative specifier return the relative path
|
|
// to the parent
|
|
if (isRelativeSpecifier(specifier)) {
|
|
found = relative(parent, found);
|
|
// Add '.separator if the path does not start with '..separator'
|
|
// This should be a safe assumption because when loading
|
|
// esm modules there should be always a file specified so
|
|
// there should not be a specifier like '..' or '.'
|
|
if (!StringPrototypeStartsWith(found, `..${sep}`)) {
|
|
found = `.${sep}${found}`;
|
|
}
|
|
} else if (isBareSpecifier(specifier)) {
|
|
// If it is a bare specifier return the relative path within the
|
|
// module
|
|
const pkg = StringPrototypeSplit(specifier, '/')[0];
|
|
const index = StringPrototypeIndexOf(found, pkg);
|
|
if (index !== -1) {
|
|
found = StringPrototypeSlice(found, index);
|
|
}
|
|
}
|
|
// Normalize the path separator to give a valid suggestion
|
|
// on Windows
|
|
if (process.platform === 'win32') {
|
|
found = StringPrototypeReplace(found, new RegExp(`\\${sep}`, 'g'), '/');
|
|
}
|
|
return found;
|
|
} catch {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
function defaultResolve(specifier, context = {}, defaultResolveUnused) {
|
|
let { parentURL, conditions } = context;
|
|
if (parentURL && policy != null && policy.manifest) {
|
|
const redirects = policy.manifest.getDependencyMapper(parentURL);
|
|
if (redirects) {
|
|
const { resolve, reaction } = redirects;
|
|
const destination = resolve(specifier, new SafeSet(conditions));
|
|
let missing = true;
|
|
if (destination === true) {
|
|
missing = false;
|
|
} else if (destination) {
|
|
const href = destination.href;
|
|
return { url: href };
|
|
}
|
|
if (missing) {
|
|
reaction(new ERR_MANIFEST_DEPENDENCY_MISSING(
|
|
parentURL,
|
|
specifier,
|
|
ArrayPrototypeJoin([...conditions], ', '))
|
|
);
|
|
}
|
|
}
|
|
}
|
|
let parsed;
|
|
try {
|
|
parsed = new URL(specifier);
|
|
if (parsed.protocol === 'data:') {
|
|
return {
|
|
url: specifier
|
|
};
|
|
}
|
|
} catch {}
|
|
if (parsed && parsed.protocol === builtinModuleProtocol)
|
|
return { url: specifier };
|
|
if (parsed && parsed.protocol !== 'file:' && parsed.protocol !== 'data:')
|
|
throw new ERR_UNSUPPORTED_ESM_URL_SCHEME(parsed);
|
|
if (NativeModule.canBeRequiredByUsers(specifier)) {
|
|
return {
|
|
url: builtinModuleProtocol + specifier
|
|
};
|
|
}
|
|
if (parentURL && StringPrototypeStartsWith(parentURL, 'data:')) {
|
|
// This is gonna blow up, we want the error
|
|
new URL(specifier, parentURL);
|
|
}
|
|
|
|
const isMain = parentURL === undefined;
|
|
if (isMain) {
|
|
parentURL = pathToFileURL(`${process.cwd()}/`).href;
|
|
|
|
// This is the initial entry point to the program, and --input-type has
|
|
// been passed as an option; but --input-type can only be used with
|
|
// --eval, --print or STDIN string input. It is not allowed with file
|
|
// input, to avoid user confusion over how expansive the effect of the
|
|
// flag should be (i.e. entry point only, package scope surrounding the
|
|
// entry point, etc.).
|
|
if (typeFlag)
|
|
throw new ERR_INPUT_TYPE_NOT_ALLOWED();
|
|
}
|
|
|
|
conditions = getConditionsSet(conditions);
|
|
let url;
|
|
try {
|
|
url = moduleResolve(specifier, parentURL, conditions);
|
|
} catch (error) {
|
|
// Try to give the user a hint of what would have been the
|
|
// resolved CommonJS module
|
|
if (error.code === 'ERR_MODULE_NOT_FOUND' ||
|
|
error.code === 'ERR_UNSUPPORTED_DIR_IMPORT') {
|
|
if (StringPrototypeStartsWith(specifier, 'file://')) {
|
|
specifier = fileURLToPath(specifier);
|
|
}
|
|
const found = resolveAsCommonJS(specifier, parentURL);
|
|
if (found) {
|
|
// Modify the stack and message string to include the hint
|
|
const lines = StringPrototypeSplit(error.stack, '\n');
|
|
const hint = `Did you mean to import ${found}?`;
|
|
error.stack =
|
|
ArrayPrototypeShift(lines) + '\n' +
|
|
hint + '\n' +
|
|
ArrayPrototypeJoin(lines, '\n');
|
|
error.message += `\n${hint}`;
|
|
}
|
|
}
|
|
throw error;
|
|
}
|
|
|
|
if (isMain ? !preserveSymlinksMain : !preserveSymlinks) {
|
|
const urlPath = fileURLToPath(url);
|
|
const real = realpathSync(urlPath, {
|
|
// [internalFS.realpathCacheKey]: realpathCache
|
|
});
|
|
const old = url;
|
|
url = pathToFileURL(
|
|
real + (StringPrototypeEndsWith(urlPath, sep) ? '/' : ''));
|
|
url.search = old.search;
|
|
url.hash = old.hash;
|
|
}
|
|
|
|
return { url: `${url}` };
|
|
}
|
|
|
|
return {
|
|
DEFAULT_CONDITIONS,
|
|
defaultResolve,
|
|
encodedSepRegEx,
|
|
getPackageType,
|
|
packageExportsResolve,
|
|
packageImportsResolve
|
|
};
|
|
}
|
|
module.exports = {
|
|
createResolve
|
|
};
|