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node_modules/enhanced-resolve/lib/AliasFieldPlugin.js

@@ -0,0 +1,101 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+
+"use strict";
+
+const DescriptionFileUtils = require("./DescriptionFileUtils");
+const getInnerRequest = require("./getInnerRequest");
+
+/** @typedef {import("./Resolver")} Resolver */
+/** @typedef {import("./Resolver").ResolveRequest} ResolveRequest */
+/** @typedef {import("./Resolver").ResolveStepHook} ResolveStepHook */
+
+module.exports = class AliasFieldPlugin {
+	/**
+	 * @param {string | ResolveStepHook} source source
+	 * @param {string | Array<string>} field field
+	 * @param {string | ResolveStepHook} target target
+	 */
+	constructor(source, field, target) {
+		this.source = source;
+		this.field = field;
+		this.target = target;
+	}
+
+	/**
+	 * @param {Resolver} resolver the resolver
+	 * @returns {void}
+	 */
+	apply(resolver) {
+		const target = resolver.ensureHook(this.target);
+		resolver
+			.getHook(this.source)
+			.tapAsync("AliasFieldPlugin", (request, resolveContext, callback) => {
+				if (!request.descriptionFileData) return callback();
+				const innerRequest = getInnerRequest(resolver, request);
+				if (!innerRequest) return callback();
+				const fieldData = DescriptionFileUtils.getField(
+					request.descriptionFileData,
+					this.field
+				);
+				if (fieldData === null || typeof fieldData !== "object") {
+					if (resolveContext.log)
+						resolveContext.log(
+							"Field '" +
+								this.field +
+								"' doesn't contain a valid alias configuration"
+						);
+					return callback();
+				}
+				const data = Object.prototype.hasOwnProperty.call(
+					fieldData,
+					innerRequest
+				)
+					? fieldData[innerRequest]
+					: innerRequest.startsWith("./")
+					? fieldData[innerRequest.slice(2)]
+					: undefined;
+				if (data === innerRequest) return callback();
+				if (data === undefined) return callback();
+				if (data === false) {
+					/** @type {ResolveRequest} */
+					const ignoreObj = {
+						...request,
+						path: false
+					};
+					if (typeof resolveContext.yield === "function") {
+						resolveContext.yield(ignoreObj);
+						return callback(null, null);
+					}
+					return callback(null, ignoreObj);
+				}
+				const obj = {
+					...request,
+					path: request.descriptionFileRoot,
+					request: data,
+					fullySpecified: false
+				};
+				resolver.doResolve(
+					target,
+					obj,
+					"aliased from description file " +
+						request.descriptionFilePath +
+						" with mapping '" +
+						innerRequest +
+						"' to '" +
+						data +
+						"'",
+					resolveContext,
+					(err, result) => {
+						if (err) return callback(err);
+
+						// Don't allow other aliasing or raw request
+						if (result === undefined) return callback(null, null);
+						callback(null, result);
+					}
+				);
+			});
+	}
+};

node_modules/enhanced-resolve/lib/AliasPlugin.js

@@ -0,0 +1,131 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+
+"use strict";
+
+const forEachBail = require("./forEachBail");
+const { PathType, getType } = require("./util/path");
+
+/** @typedef {import("./Resolver")} Resolver */
+/** @typedef {import("./Resolver").ResolveRequest} ResolveRequest */
+/** @typedef {import("./Resolver").ResolveStepHook} ResolveStepHook */
+/** @typedef {{alias: string|Array<string>|false, name: string, onlyModule?: boolean}} AliasOption */
+
+module.exports = class AliasPlugin {
+	/**
+	 * @param {string | ResolveStepHook} source source
+	 * @param {AliasOption | Array<AliasOption>} options options
+	 * @param {string | ResolveStepHook} target target
+	 */
+	constructor(source, options, target) {
+		this.source = source;
+		this.options = Array.isArray(options) ? options : [options];
+		this.target = target;
+	}
+
+	/**
+	 * @param {Resolver} resolver the resolver
+	 * @returns {void}
+	 */
+	apply(resolver) {
+		const target = resolver.ensureHook(this.target);
+		const getAbsolutePathWithSlashEnding = maybeAbsolutePath => {
+			const type = getType(maybeAbsolutePath);
+			if (type === PathType.AbsolutePosix || type === PathType.AbsoluteWin) {
+				return resolver.join(maybeAbsolutePath, "_").slice(0, -1);
+			}
+			return null;
+		};
+		const isSubPath = (path, maybeSubPath) => {
+			const absolutePath = getAbsolutePathWithSlashEnding(maybeSubPath);
+			if (!absolutePath) return false;
+			return path.startsWith(absolutePath);
+		};
+		resolver
+			.getHook(this.source)
+			.tapAsync("AliasPlugin", (request, resolveContext, callback) => {
+				const innerRequest = request.request || request.path;
+				if (!innerRequest) return callback();
+				forEachBail(
+					this.options,
+					(item, callback) => {
+						let shouldStop = false;
+						if (
+							innerRequest === item.name ||
+							(!item.onlyModule &&
+								(request.request
+									? innerRequest.startsWith(`${item.name}/`)
+									: isSubPath(innerRequest, item.name)))
+						) {
+							const remainingRequest = innerRequest.substr(item.name.length);
+							const resolveWithAlias = (alias, callback) => {
+								if (alias === false) {
+									/** @type {ResolveRequest} */
+									const ignoreObj = {
+										...request,
+										path: false
+									};
+									if (typeof resolveContext.yield === "function") {
+										resolveContext.yield(ignoreObj);
+										return callback(null, null);
+									}
+									return callback(null, ignoreObj);
+								}
+								if (
+									innerRequest !== alias &&
+									!innerRequest.startsWith(alias + "/")
+								) {
+									shouldStop = true;
+									const newRequestStr = alias + remainingRequest;
+									const obj = {
+										...request,
+										request: newRequestStr,
+										fullySpecified: false
+									};
+									return resolver.doResolve(
+										target,
+										obj,
+										"aliased with mapping '" +
+											item.name +
+											"': '" +
+											alias +
+											"' to '" +
+											newRequestStr +
+											"'",
+										resolveContext,
+										(err, result) => {
+											if (err) return callback(err);
+											if (result) return callback(null, result);
+											return callback();
+										}
+									);
+								}
+								return callback();
+							};
+							const stoppingCallback = (err, result) => {
+								if (err) return callback(err);
+
+								if (result) return callback(null, result);
+								// Don't allow other aliasing or raw request
+								if (shouldStop) return callback(null, null);
+								return callback();
+							};
+							if (Array.isArray(item.alias)) {
+								return forEachBail(
+									item.alias,
+									resolveWithAlias,
+									stoppingCallback
+								);
+							} else {
+								return resolveWithAlias(item.alias, stoppingCallback);
+							}
+						}
+						return callback();
+					},
+					callback
+				);
+			});
+	}
+};

node_modules/enhanced-resolve/lib/AppendPlugin.js

@@ -0,0 +1,47 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+
+"use strict";
+
+/** @typedef {import("./Resolver")} Resolver */
+/** @typedef {import("./Resolver").ResolveStepHook} ResolveStepHook */
+
+module.exports = class AppendPlugin {
+	/**
+	 * @param {string | ResolveStepHook} source source
+	 * @param {string} appending appending
+	 * @param {string | ResolveStepHook} target target
+	 */
+	constructor(source, appending, target) {
+		this.source = source;
+		this.appending = appending;
+		this.target = target;
+	}
+
+	/**
+	 * @param {Resolver} resolver the resolver
+	 * @returns {void}
+	 */
+	apply(resolver) {
+		const target = resolver.ensureHook(this.target);
+		resolver
+			.getHook(this.source)
+			.tapAsync("AppendPlugin", (request, resolveContext, callback) => {
+				const obj = {
+					...request,
+					path: request.path + this.appending,
+					relativePath:
+						request.relativePath && request.relativePath + this.appending
+				};
+				resolver.doResolve(
+					target,
+					obj,
+					this.appending,
+					resolveContext,
+					callback
+				);
+			});
+	}
+};

node_modules/enhanced-resolve/lib/CachedInputFileSystem.js

@@ -0,0 +1,477 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+
+"use strict";
+
+const nextTick = require("process").nextTick;
+
+/** @typedef {import("./Resolver").FileSystem} FileSystem */
+/** @typedef {import("./Resolver").SyncFileSystem} SyncFileSystem */
+
+const dirname = path => {
+	let idx = path.length - 1;
+	while (idx >= 0) {
+		const c = path.charCodeAt(idx);
+		// slash or backslash
+		if (c === 47 || c === 92) break;
+		idx--;
+	}
+	if (idx < 0) return "";
+	return path.slice(0, idx);
+};
+
+const runCallbacks = (callbacks, err, result) => {
+	if (callbacks.length === 1) {
+		callbacks[0](err, result);
+		callbacks.length = 0;
+		return;
+	}
+	let error;
+	for (const callback of callbacks) {
+		try {
+			callback(err, result);
+		} catch (e) {
+			if (!error) error = e;
+		}
+	}
+	callbacks.length = 0;
+	if (error) throw error;
+};
+
+class OperationMergerBackend {
+	/**
+	 * @param {any} provider async method
+	 * @param {any} syncProvider sync method
+	 * @param {any} providerContext call context for the provider methods
+	 */
+	constructor(provider, syncProvider, providerContext) {
+		this._provider = provider;
+		this._syncProvider = syncProvider;
+		this._providerContext = providerContext;
+		this._activeAsyncOperations = new Map();
+
+		this.provide = this._provider
+			? (path, options, callback) => {
+					if (typeof options === "function") {
+						callback = options;
+						options = undefined;
+					}
+					if (options) {
+						return this._provider.call(
+							this._providerContext,
+							path,
+							options,
+							callback
+						);
+					}
+					if (typeof path !== "string") {
+						callback(new TypeError("path must be a string"));
+						return;
+					}
+					let callbacks = this._activeAsyncOperations.get(path);
+					if (callbacks) {
+						callbacks.push(callback);
+						return;
+					}
+					this._activeAsyncOperations.set(path, (callbacks = [callback]));
+					provider(path, (err, result) => {
+						this._activeAsyncOperations.delete(path);
+						runCallbacks(callbacks, err, result);
+					});
+			  }
+			: null;
+		this.provideSync = this._syncProvider
+			? (path, options) => {
+					return this._syncProvider.call(this._providerContext, path, options);
+			  }
+			: null;
+	}
+
+	purge() {}
+	purgeParent() {}
+}
+
+/*
+
+IDLE:
+	insert data: goto SYNC
+
+SYNC:
+	before provide: run ticks
+	event loop tick: goto ASYNC_ACTIVE
+
+ASYNC:
+	timeout: run tick, goto ASYNC_PASSIVE
+
+ASYNC_PASSIVE:
+	before provide: run ticks
+
+IDLE --[insert data]--> SYNC --[event loop tick]--> ASYNC_ACTIVE --[interval tick]-> ASYNC_PASSIVE
+                                                          ^                             |
+                                                          +---------[insert data]-------+
+*/
+
+const STORAGE_MODE_IDLE = 0;
+const STORAGE_MODE_SYNC = 1;
+const STORAGE_MODE_ASYNC = 2;
+
+class CacheBackend {
+	/**
+	 * @param {number} duration max cache duration of items
+	 * @param {any} provider async method
+	 * @param {any} syncProvider sync method
+	 * @param {any} providerContext call context for the provider methods
+	 */
+	constructor(duration, provider, syncProvider, providerContext) {
+		this._duration = duration;
+		this._provider = provider;
+		this._syncProvider = syncProvider;
+		this._providerContext = providerContext;
+		/** @type {Map<string, (function(Error, any): void)[]>} */
+		this._activeAsyncOperations = new Map();
+		/** @type {Map<string, { err: Error, result: any, level: Set<string> }>} */
+		this._data = new Map();
+		/** @type {Set<string>[]} */
+		this._levels = [];
+		for (let i = 0; i < 10; i++) this._levels.push(new Set());
+		for (let i = 5000; i < duration; i += 500) this._levels.push(new Set());
+		this._currentLevel = 0;
+		this._tickInterval = Math.floor(duration / this._levels.length);
+		/** @type {STORAGE_MODE_IDLE | STORAGE_MODE_SYNC | STORAGE_MODE_ASYNC} */
+		this._mode = STORAGE_MODE_IDLE;
+
+		/** @type {NodeJS.Timeout | undefined} */
+		this._timeout = undefined;
+		/** @type {number | undefined} */
+		this._nextDecay = undefined;
+
+		this.provide = provider ? this.provide.bind(this) : null;
+		this.provideSync = syncProvider ? this.provideSync.bind(this) : null;
+	}
+
+	provide(path, options, callback) {
+		if (typeof options === "function") {
+			callback = options;
+			options = undefined;
+		}
+		if (typeof path !== "string") {
+			callback(new TypeError("path must be a string"));
+			return;
+		}
+		if (options) {
+			return this._provider.call(
+				this._providerContext,
+				path,
+				options,
+				callback
+			);
+		}
+
+		// When in sync mode we can move to async mode
+		if (this._mode === STORAGE_MODE_SYNC) {
+			this._enterAsyncMode();
+		}
+
+		// Check in cache
+		let cacheEntry = this._data.get(path);
+		if (cacheEntry !== undefined) {
+			if (cacheEntry.err) return nextTick(callback, cacheEntry.err);
+			return nextTick(callback, null, cacheEntry.result);
+		}
+
+		// Check if there is already the same operation running
+		let callbacks = this._activeAsyncOperations.get(path);
+		if (callbacks !== undefined) {
+			callbacks.push(callback);
+			return;
+		}
+		this._activeAsyncOperations.set(path, (callbacks = [callback]));
+
+		// Run the operation
+		this._provider.call(this._providerContext, path, (err, result) => {
+			this._activeAsyncOperations.delete(path);
+			this._storeResult(path, err, result);
+
+			// Enter async mode if not yet done
+			this._enterAsyncMode();
+
+			runCallbacks(callbacks, err, result);
+		});
+	}
+
+	provideSync(path, options) {
+		if (typeof path !== "string") {
+			throw new TypeError("path must be a string");
+		}
+		if (options) {
+			return this._syncProvider.call(this._providerContext, path, options);
+		}
+
+		// In sync mode we may have to decay some cache items
+		if (this._mode === STORAGE_MODE_SYNC) {
+			this._runDecays();
+		}
+
+		// Check in cache
+		let cacheEntry = this._data.get(path);
+		if (cacheEntry !== undefined) {
+			if (cacheEntry.err) throw cacheEntry.err;
+			return cacheEntry.result;
+		}
+
+		// Get all active async operations
+		// This sync operation will also complete them
+		const callbacks = this._activeAsyncOperations.get(path);
+		this._activeAsyncOperations.delete(path);
+
+		// Run the operation
+		// When in idle mode, we will enter sync mode
+		let result;
+		try {
+			result = this._syncProvider.call(this._providerContext, path);
+		} catch (err) {
+			this._storeResult(path, err, undefined);
+			this._enterSyncModeWhenIdle();
+			if (callbacks) runCallbacks(callbacks, err, undefined);
+			throw err;
+		}
+		this._storeResult(path, undefined, result);
+		this._enterSyncModeWhenIdle();
+		if (callbacks) runCallbacks(callbacks, undefined, result);
+		return result;
+	}
+
+	purge(what) {
+		if (!what) {
+			if (this._mode !== STORAGE_MODE_IDLE) {
+				this._data.clear();
+				for (const level of this._levels) {
+					level.clear();
+				}
+				this._enterIdleMode();
+			}
+		} else if (typeof what === "string") {
+			for (let [key, data] of this._data) {
+				if (key.startsWith(what)) {
+					this._data.delete(key);
+					data.level.delete(key);
+				}
+			}
+			if (this._data.size === 0) {
+				this._enterIdleMode();
+			}
+		} else {
+			for (let [key, data] of this._data) {
+				for (const item of what) {
+					if (key.startsWith(item)) {
+						this._data.delete(key);
+						data.level.delete(key);
+						break;
+					}
+				}
+			}
+			if (this._data.size === 0) {
+				this._enterIdleMode();
+			}
+		}
+	}
+
+	purgeParent(what) {
+		if (!what) {
+			this.purge();
+		} else if (typeof what === "string") {
+			this.purge(dirname(what));
+		} else {
+			const set = new Set();
+			for (const item of what) {
+				set.add(dirname(item));
+			}
+			this.purge(set);
+		}
+	}
+
+	_storeResult(path, err, result) {
+		if (this._data.has(path)) return;
+		const level = this._levels[this._currentLevel];
+		this._data.set(path, { err, result, level });
+		level.add(path);
+	}
+
+	_decayLevel() {
+		const nextLevel = (this._currentLevel + 1) % this._levels.length;
+		const decay = this._levels[nextLevel];
+		this._currentLevel = nextLevel;
+		for (let item of decay) {
+			this._data.delete(item);
+		}
+		decay.clear();
+		if (this._data.size === 0) {
+			this._enterIdleMode();
+		} else {
+			// @ts-ignore _nextDecay is always a number in sync mode
+			this._nextDecay += this._tickInterval;
+		}
+	}
+
+	_runDecays() {
+		while (
+			/** @type {number} */ (this._nextDecay) <= Date.now() &&
+			this._mode !== STORAGE_MODE_IDLE
+		) {
+			this._decayLevel();
+		}
+	}
+
+	_enterAsyncMode() {
+		let timeout = 0;
+		switch (this._mode) {
+			case STORAGE_MODE_ASYNC:
+				return;
+			case STORAGE_MODE_IDLE:
+				this._nextDecay = Date.now() + this._tickInterval;
+				timeout = this._tickInterval;
+				break;
+			case STORAGE_MODE_SYNC:
+				this._runDecays();
+				// @ts-ignore _runDecays may change the mode
+				if (this._mode === STORAGE_MODE_IDLE) return;
+				timeout = Math.max(
+					0,
+					/** @type {number} */ (this._nextDecay) - Date.now()
+				);
+				break;
+		}
+		this._mode = STORAGE_MODE_ASYNC;
+		const ref = setTimeout(() => {
+			this._mode = STORAGE_MODE_SYNC;
+			this._runDecays();
+		}, timeout);
+		if (ref.unref) ref.unref();
+		this._timeout = ref;
+	}
+
+	_enterSyncModeWhenIdle() {
+		if (this._mode === STORAGE_MODE_IDLE) {
+			this._mode = STORAGE_MODE_SYNC;
+			this._nextDecay = Date.now() + this._tickInterval;
+		}
+	}
+
+	_enterIdleMode() {
+		this._mode = STORAGE_MODE_IDLE;
+		this._nextDecay = undefined;
+		if (this._timeout) clearTimeout(this._timeout);
+	}
+}
+
+const createBackend = (duration, provider, syncProvider, providerContext) => {
+	if (duration > 0) {
+		return new CacheBackend(duration, provider, syncProvider, providerContext);
+	}
+	return new OperationMergerBackend(provider, syncProvider, providerContext);
+};
+
+module.exports = class CachedInputFileSystem {
+	constructor(fileSystem, duration) {
+		this.fileSystem = fileSystem;
+
+		this._lstatBackend = createBackend(
+			duration,
+			this.fileSystem.lstat,
+			this.fileSystem.lstatSync,
+			this.fileSystem
+		);
+		const lstat = this._lstatBackend.provide;
+		this.lstat = /** @type {FileSystem["lstat"]} */ (lstat);
+		const lstatSync = this._lstatBackend.provideSync;
+		this.lstatSync = /** @type {SyncFileSystem["lstatSync"]} */ (lstatSync);
+
+		this._statBackend = createBackend(
+			duration,
+			this.fileSystem.stat,
+			this.fileSystem.statSync,
+			this.fileSystem
+		);
+		const stat = this._statBackend.provide;
+		this.stat = /** @type {FileSystem["stat"]} */ (stat);
+		const statSync = this._statBackend.provideSync;
+		this.statSync = /** @type {SyncFileSystem["statSync"]} */ (statSync);
+
+		this._readdirBackend = createBackend(
+			duration,
+			this.fileSystem.readdir,
+			this.fileSystem.readdirSync,
+			this.fileSystem
+		);
+		const readdir = this._readdirBackend.provide;
+		this.readdir = /** @type {FileSystem["readdir"]} */ (readdir);
+		const readdirSync = this._readdirBackend.provideSync;
+		this.readdirSync = /** @type {SyncFileSystem["readdirSync"]} */ (readdirSync);
+
+		this._readFileBackend = createBackend(
+			duration,
+			this.fileSystem.readFile,
+			this.fileSystem.readFileSync,
+			this.fileSystem
+		);
+		const readFile = this._readFileBackend.provide;
+		this.readFile = /** @type {FileSystem["readFile"]} */ (readFile);
+		const readFileSync = this._readFileBackend.provideSync;
+		this.readFileSync = /** @type {SyncFileSystem["readFileSync"]} */ (readFileSync);
+
+		this._readJsonBackend = createBackend(
+			duration,
+			this.fileSystem.readJson ||
+				(this.readFile &&
+					((path, callback) => {
+						// @ts-ignore
+						this.readFile(path, (err, buffer) => {
+							if (err) return callback(err);
+							if (!buffer || buffer.length === 0)
+								return callback(new Error("No file content"));
+							let data;
+							try {
+								data = JSON.parse(buffer.toString("utf-8"));
+							} catch (e) {
+								return callback(e);
+							}
+							callback(null, data);
+						});
+					})),
+			this.fileSystem.readJsonSync ||
+				(this.readFileSync &&
+					(path => {
+						const buffer = this.readFileSync(path);
+						const data = JSON.parse(buffer.toString("utf-8"));
+						return data;
+					})),
+			this.fileSystem
+		);
+		const readJson = this._readJsonBackend.provide;
+		this.readJson = /** @type {FileSystem["readJson"]} */ (readJson);
+		const readJsonSync = this._readJsonBackend.provideSync;
+		this.readJsonSync = /** @type {SyncFileSystem["readJsonSync"]} */ (readJsonSync);
+
+		this._readlinkBackend = createBackend(
+			duration,
+			this.fileSystem.readlink,
+			this.fileSystem.readlinkSync,
+			this.fileSystem
+		);
+		const readlink = this._readlinkBackend.provide;
+		this.readlink = /** @type {FileSystem["readlink"]} */ (readlink);
+		const readlinkSync = this._readlinkBackend.provideSync;
+		this.readlinkSync = /** @type {SyncFileSystem["readlinkSync"]} */ (readlinkSync);
+	}
+
+	purge(what) {
+		this._statBackend.purge(what);
+		this._lstatBackend.purge(what);
+		this._readdirBackend.purgeParent(what);
+		this._readFileBackend.purge(what);
+		this._readlinkBackend.purge(what);
+		this._readJsonBackend.purge(what);
+	}
+};

node_modules/enhanced-resolve/lib/CloneBasenamePlugin.js

@@ -0,0 +1,45 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+
+"use strict";
+
+const basename = require("./getPaths").basename;
+
+/** @typedef {import("./Resolver")} Resolver */
+
+module.exports = class CloneBasenamePlugin {
+	constructor(source, target) {
+		this.source = source;
+		this.target = target;
+	}
+
+	/**
+	 * @param {Resolver} resolver the resolver
+	 * @returns {void}
+	 */
+	apply(resolver) {
+		const target = resolver.ensureHook(this.target);
+		resolver
+			.getHook(this.source)
+			.tapAsync("CloneBasenamePlugin", (request, resolveContext, callback) => {
+				const filename = basename(request.path);
+				const filePath = resolver.join(request.path, filename);
+				const obj = {
+					...request,
+					path: filePath,
+					relativePath:
+						request.relativePath &&
+						resolver.join(request.relativePath, filename)
+				};
+				resolver.doResolve(
+					target,
+					obj,
+					"using path: " + filePath,
+					resolveContext,
+					callback
+				);
+			});
+	}
+};

node_modules/enhanced-resolve/lib/ConditionalPlugin.js

@@ -0,0 +1,59 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+
+"use strict";
+
+/** @typedef {import("./Resolver")} Resolver */
+/** @typedef {import("./Resolver").ResolveRequest} ResolveRequest */
+/** @typedef {import("./Resolver").ResolveStepHook} ResolveStepHook */
+
+module.exports = class ConditionalPlugin {
+	/**
+	 * @param {string | ResolveStepHook} source source
+	 * @param {Partial<ResolveRequest>} test compare object
+	 * @param {string | null} message log message
+	 * @param {boolean} allowAlternatives when false, do not continue with the current step when "test" matches
+	 * @param {string | ResolveStepHook} target target
+	 */
+	constructor(source, test, message, allowAlternatives, target) {
+		this.source = source;
+		this.test = test;
+		this.message = message;
+		this.allowAlternatives = allowAlternatives;
+		this.target = target;
+	}
+
+	/**
+	 * @param {Resolver} resolver the resolver
+	 * @returns {void}
+	 */
+	apply(resolver) {
+		const target = resolver.ensureHook(this.target);
+		const { test, message, allowAlternatives } = this;
+		const keys = Object.keys(test);
+		resolver
+			.getHook(this.source)
+			.tapAsync("ConditionalPlugin", (request, resolveContext, callback) => {
+				for (const prop of keys) {
+					if (request[prop] !== test[prop]) return callback();
+				}
+				resolver.doResolve(
+					target,
+					request,
+					message,
+					resolveContext,
+					allowAlternatives
+						? callback
+						: (err, result) => {
+								if (err) return callback(err);
+
+								// Don't allow other alternatives
+								if (result === undefined) return callback(null, null);
+								callback(null, result);
+						  }
+				);
+			});
+	}
+};

node_modules/enhanced-resolve/lib/DescriptionFilePlugin.js

@@ -0,0 +1,96 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+
+"use strict";
+
+const DescriptionFileUtils = require("./DescriptionFileUtils");
+
+/** @typedef {import("./Resolver")} Resolver */
+/** @typedef {import("./Resolver").ResolveStepHook} ResolveStepHook */
+
+module.exports = class DescriptionFilePlugin {
+	/**
+	 * @param {string | ResolveStepHook} source source
+	 * @param {string[]} filenames filenames
+	 * @param {boolean} pathIsFile pathIsFile
+	 * @param {string | ResolveStepHook} target target
+	 */
+	constructor(source, filenames, pathIsFile, target) {
+		this.source = source;
+		this.filenames = filenames;
+		this.pathIsFile = pathIsFile;
+		this.target = target;
+	}
+
+	/**
+	 * @param {Resolver} resolver the resolver
+	 * @returns {void}
+	 */
+	apply(resolver) {
+		const target = resolver.ensureHook(this.target);
+		resolver
+			.getHook(this.source)
+			.tapAsync(
+				"DescriptionFilePlugin",
+				(request, resolveContext, callback) => {
+					const path = request.path;
+					if (!path) return callback();
+					const directory = this.pathIsFile
+						? DescriptionFileUtils.cdUp(path)
+						: path;
+					if (!directory) return callback();
+					DescriptionFileUtils.loadDescriptionFile(
+						resolver,
+						directory,
+						this.filenames,
+						request.descriptionFilePath
+							? {
+									path: request.descriptionFilePath,
+									content: request.descriptionFileData,
+									directory: /** @type {string} */ (request.descriptionFileRoot)
+							  }
+							: undefined,
+						resolveContext,
+						(err, result) => {
+							if (err) return callback(err);
+							if (!result) {
+								if (resolveContext.log)
+									resolveContext.log(
+										`No description file found in ${directory} or above`
+									);
+								return callback();
+							}
+							const relativePath =
+								"." + path.substr(result.directory.length).replace(/\\/g, "/");
+							const obj = {
+								...request,
+								descriptionFilePath: result.path,
+								descriptionFileData: result.content,
+								descriptionFileRoot: result.directory,
+								relativePath: relativePath
+							};
+							resolver.doResolve(
+								target,
+								obj,
+								"using description file: " +
+									result.path +
+									" (relative path: " +
+									relativePath +
+									")",
+								resolveContext,
+								(err, result) => {
+									if (err) return callback(err);
+
+									// Don't allow other processing
+									if (result === undefined) return callback(null, null);
+									callback(null, result);
+								}
+							);
+						}
+					);
+				}
+			);
+	}
+};

node_modules/enhanced-resolve/lib/DescriptionFileUtils.js

@@ -0,0 +1,170 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+
+"use strict";
+
+const forEachBail = require("./forEachBail");
+
+/** @typedef {import("./Resolver")} Resolver */
+/** @typedef {import("./Resolver").ResolveContext} ResolveContext */
+
+/**
+ * @typedef {Object} DescriptionFileInfo
+ * @property {any=} content
+ * @property {string} path
+ * @property {string} directory
+ */
+
+/**
+ * @callback ErrorFirstCallback
+ * @param {Error|null=} error
+ * @param {DescriptionFileInfo=} result
+ */
+
+/**
+ * @param {Resolver} resolver resolver
+ * @param {string} directory directory
+ * @param {string[]} filenames filenames
+ * @param {DescriptionFileInfo|undefined} oldInfo oldInfo
+ * @param {ResolveContext} resolveContext resolveContext
+ * @param {ErrorFirstCallback} callback callback
+ */
+function loadDescriptionFile(
+	resolver,
+	directory,
+	filenames,
+	oldInfo,
+	resolveContext,
+	callback
+) {
+	(function findDescriptionFile() {
+		if (oldInfo && oldInfo.directory === directory) {
+			// We already have info for this directory and can reuse it
+			return callback(null, oldInfo);
+		}
+		forEachBail(
+			filenames,
+			(filename, callback) => {
+				const descriptionFilePath = resolver.join(directory, filename);
+				if (resolver.fileSystem.readJson) {
+					resolver.fileSystem.readJson(descriptionFilePath, (err, content) => {
+						if (err) {
+							if (typeof err.code !== "undefined") {
+								if (resolveContext.missingDependencies) {
+									resolveContext.missingDependencies.add(descriptionFilePath);
+								}
+								return callback();
+							}
+							if (resolveContext.fileDependencies) {
+								resolveContext.fileDependencies.add(descriptionFilePath);
+							}
+							return onJson(err);
+						}
+						if (resolveContext.fileDependencies) {
+							resolveContext.fileDependencies.add(descriptionFilePath);
+						}
+						onJson(null, content);
+					});
+				} else {
+					resolver.fileSystem.readFile(descriptionFilePath, (err, content) => {
+						if (err) {
+							if (resolveContext.missingDependencies) {
+								resolveContext.missingDependencies.add(descriptionFilePath);
+							}
+							return callback();
+						}
+						if (resolveContext.fileDependencies) {
+							resolveContext.fileDependencies.add(descriptionFilePath);
+						}
+						let json;
+
+						if (content) {
+							try {
+								json = JSON.parse(content.toString());
+							} catch (e) {
+								return onJson(e);
+							}
+						} else {
+							return onJson(new Error("No content in file"));
+						}
+
+						onJson(null, json);
+					});
+				}
+
+				function onJson(err, content) {
+					if (err) {
+						if (resolveContext.log)
+							resolveContext.log(
+								descriptionFilePath + " (directory description file): " + err
+							);
+						else
+							err.message =
+								descriptionFilePath + " (directory description file): " + err;
+						return callback(err);
+					}
+					callback(null, {
+						content,
+						directory,
+						path: descriptionFilePath
+					});
+				}
+			},
+			(err, result) => {
+				if (err) return callback(err);
+				if (result) {
+					return callback(null, result);
+				} else {
+					const dir = cdUp(directory);
+					if (!dir) {
+						return callback();
+					} else {
+						directory = dir;
+						return findDescriptionFile();
+					}
+				}
+			}
+		);
+	})();
+}
+
+/**
+ * @param {any} content content
+ * @param {string|string[]} field field
+ * @returns {object|string|number|boolean|undefined} field data
+ */
+function getField(content, field) {
+	if (!content) return undefined;
+	if (Array.isArray(field)) {
+		let current = content;
+		for (let j = 0; j < field.length; j++) {
+			if (current === null || typeof current !== "object") {
+				current = null;
+				break;
+			}
+			current = current[field[j]];
+		}
+		return current;
+	} else {
+		return content[field];
+	}
+}
+
+/**
+ * @param {string} directory directory
+ * @returns {string|null} parent directory or null
+ */
+function cdUp(directory) {
+	if (directory === "/") return null;
+	const i = directory.lastIndexOf("/"),
+		j = directory.lastIndexOf("\\");
+	const p = i < 0 ? j : j < 0 ? i : i < j ? j : i;
+	if (p < 0) return null;
+	return directory.substr(0, p || 1);
+}
+
+exports.loadDescriptionFile = loadDescriptionFile;
+exports.getField = getField;
+exports.cdUp = cdUp;

node_modules/enhanced-resolve/lib/DirectoryExistsPlugin.js

@@ -0,0 +1,63 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+
+"use strict";
+
+/** @typedef {import("./Resolver")} Resolver */
+/** @typedef {import("./Resolver").ResolveStepHook} ResolveStepHook */
+
+module.exports = class DirectoryExistsPlugin {
+	/**
+	 * @param {string | ResolveStepHook} source source
+	 * @param {string | ResolveStepHook} target target
+	 */
+	constructor(source, target) {
+		this.source = source;
+		this.target = target;
+	}
+
+	/**
+	 * @param {Resolver} resolver the resolver
+	 * @returns {void}
+	 */
+	apply(resolver) {
+		const target = resolver.ensureHook(this.target);
+		resolver
+			.getHook(this.source)
+			.tapAsync(
+				"DirectoryExistsPlugin",
+				(request, resolveContext, callback) => {
+					const fs = resolver.fileSystem;
+					const directory = request.path;
+					if (!directory) return callback();
+					fs.stat(directory, (err, stat) => {
+						if (err || !stat) {
+							if (resolveContext.missingDependencies)
+								resolveContext.missingDependencies.add(directory);
+							if (resolveContext.log)
+								resolveContext.log(directory + " doesn't exist");
+							return callback();
+						}
+						if (!stat.isDirectory()) {
+							if (resolveContext.missingDependencies)
+								resolveContext.missingDependencies.add(directory);
+							if (resolveContext.log)
+								resolveContext.log(directory + " is not a directory");
+							return callback();
+						}
+						if (resolveContext.fileDependencies)
+							resolveContext.fileDependencies.add(directory);
+						resolver.doResolve(
+							target,
+							request,
+							`existing directory ${directory}`,
+							resolveContext,
+							callback
+						);
+					});
+				}
+			);
+	}
+};

node_modules/enhanced-resolve/lib/ExportsFieldPlugin.js

@@ -0,0 +1,149 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Ivan Kopeykin @vankop
+*/
+
+"use strict";
+
+const path = require("path");
+const DescriptionFileUtils = require("./DescriptionFileUtils");
+const forEachBail = require("./forEachBail");
+const { processExportsField } = require("./util/entrypoints");
+const { parseIdentifier } = require("./util/identifier");
+const { checkImportsExportsFieldTarget } = require("./util/path");
+
+/** @typedef {import("./Resolver")} Resolver */
+/** @typedef {import("./Resolver").ResolveStepHook} ResolveStepHook */
+/** @typedef {import("./util/entrypoints").ExportsField} ExportsField */
+/** @typedef {import("./util/entrypoints").FieldProcessor} FieldProcessor */
+
+module.exports = class ExportsFieldPlugin {
+	/**
+	 * @param {string | ResolveStepHook} source source
+	 * @param {Set<string>} conditionNames condition names
+	 * @param {string | string[]} fieldNamePath name path
+	 * @param {string | ResolveStepHook} target target
+	 */
+	constructor(source, conditionNames, fieldNamePath, target) {
+		this.source = source;
+		this.target = target;
+		this.conditionNames = conditionNames;
+		this.fieldName = fieldNamePath;
+		/** @type {WeakMap<any, FieldProcessor>} */
+		this.fieldProcessorCache = new WeakMap();
+	}
+
+	/**
+	 * @param {Resolver} resolver the resolver
+	 * @returns {void}
+	 */
+	apply(resolver) {
+		const target = resolver.ensureHook(this.target);
+		resolver
+			.getHook(this.source)
+			.tapAsync("ExportsFieldPlugin", (request, resolveContext, callback) => {
+				// When there is no description file, abort
+				if (!request.descriptionFilePath) return callback();
+				if (
+					// When the description file is inherited from parent, abort
+					// (There is no description file inside of this package)
+					request.relativePath !== "." ||
+					request.request === undefined
+				)
+					return callback();
+
+				const remainingRequest =
+					request.query || request.fragment
+						? (request.request === "." ? "./" : request.request) +
+						  request.query +
+						  request.fragment
+						: request.request;
+				/** @type {ExportsField|null} */
+				const exportsField = DescriptionFileUtils.getField(
+					request.descriptionFileData,
+					this.fieldName
+				);
+				if (!exportsField) return callback();
+
+				if (request.directory) {
+					return callback(
+						new Error(
+							`Resolving to directories is not possible with the exports field (request was ${remainingRequest}/)`
+						)
+					);
+				}
+
+				let paths;
+
+				try {
+					// We attach the cache to the description file instead of the exportsField value
+					// because we use a WeakMap and the exportsField could be a string too.
+					// Description file is always an object when exports field can be accessed.
+					let fieldProcessor = this.fieldProcessorCache.get(
+						request.descriptionFileData
+					);
+					if (fieldProcessor === undefined) {
+						fieldProcessor = processExportsField(exportsField);
+						this.fieldProcessorCache.set(
+							request.descriptionFileData,
+							fieldProcessor
+						);
+					}
+					paths = fieldProcessor(remainingRequest, this.conditionNames);
+				} catch (err) {
+					if (resolveContext.log) {
+						resolveContext.log(
+							`Exports field in ${request.descriptionFilePath} can't be processed: ${err}`
+						);
+					}
+					return callback(err);
+				}
+
+				if (paths.length === 0) {
+					return callback(
+						new Error(
+							`Package path ${remainingRequest} is not exported from package ${request.descriptionFileRoot} (see exports field in ${request.descriptionFilePath})`
+						)
+					);
+				}
+
+				forEachBail(
+					paths,
+					(p, callback) => {
+						const parsedIdentifier = parseIdentifier(p);
+
+						if (!parsedIdentifier) return callback();
+
+						const [relativePath, query, fragment] = parsedIdentifier;
+
+						const error = checkImportsExportsFieldTarget(relativePath);
+
+						if (error) {
+							return callback(error);
+						}
+
+						const obj = {
+							...request,
+							request: undefined,
+							path: path.join(
+								/** @type {string} */ (request.descriptionFileRoot),
+								relativePath
+							),
+							relativePath,
+							query,
+							fragment
+						};
+
+						resolver.doResolve(
+							target,
+							obj,
+							"using exports field: " + p,
+							resolveContext,
+							callback
+						);
+					},
+					(err, result) => callback(err, result || null)
+				);
+			});
+	}
+};

node_modules/enhanced-resolve/lib/ExtensionAliasPlugin.js

@@ -0,0 +1,68 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Ivan Kopeykin @vankop
+*/
+
+"use strict";
+
+const forEachBail = require("./forEachBail");
+
+/** @typedef {import("./Resolver")} Resolver */
+/** @typedef {import("./Resolver").ResolveRequest} ResolveRequest */
+/** @typedef {import("./Resolver").ResolveStepHook} ResolveStepHook */
+/** @typedef {{ alias: string|string[], extension: string }} ExtensionAliasOption */
+
+module.exports = class ExtensionAliasPlugin {
+	/**
+	 * @param {string | ResolveStepHook} source source
+	 * @param {ExtensionAliasOption} options options
+	 * @param {string | ResolveStepHook} target target
+	 */
+	constructor(source, options, target) {
+		this.source = source;
+		this.options = options;
+		this.target = target;
+	}
+
+	/**
+	 * @param {Resolver} resolver the resolver
+	 * @returns {void}
+	 */
+	apply(resolver) {
+		const target = resolver.ensureHook(this.target);
+		const { extension, alias } = this.options;
+		resolver
+			.getHook(this.source)
+			.tapAsync("ExtensionAliasPlugin", (request, resolveContext, callback) => {
+				const requestPath = request.request;
+				if (!requestPath || !requestPath.endsWith(extension)) return callback();
+				const resolve = (alias, callback) => {
+					resolver.doResolve(
+						target,
+						{
+							...request,
+							request: `${requestPath.slice(0, -extension.length)}${alias}`,
+							fullySpecified: true
+						},
+						`aliased from extension alias with mapping '${extension}' to '${alias}'`,
+						resolveContext,
+						callback
+					);
+				};
+
+				const stoppingCallback = (err, result) => {
+					if (err) return callback(err);
+					if (result) return callback(null, result);
+					// Don't allow other aliasing or raw request
+					return callback(null, null);
+				};
+				if (typeof alias === "string") {
+					resolve(alias, stoppingCallback);
+				} else if (alias.length > 1) {
+					forEachBail(alias, resolve, stoppingCallback);
+				} else {
+					resolve(alias[0], stoppingCallback);
+				}
+			});
+	}
+};

node_modules/enhanced-resolve/lib/FileExistsPlugin.js

@@ -0,0 +1,58 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+
+"use strict";
+
+/** @typedef {import("./Resolver")} Resolver */
+/** @typedef {import("./Resolver").ResolveStepHook} ResolveStepHook */
+
+module.exports = class FileExistsPlugin {
+	/**
+	 * @param {string | ResolveStepHook} source source
+	 * @param {string | ResolveStepHook} target target
+	 */
+	constructor(source, target) {
+		this.source = source;
+		this.target = target;
+	}
+
+	/**
+	 * @param {Resolver} resolver the resolver
+	 * @returns {void}
+	 */
+	apply(resolver) {
+		const target = resolver.ensureHook(this.target);
+		const fs = resolver.fileSystem;
+		resolver
+			.getHook(this.source)
+			.tapAsync("FileExistsPlugin", (request, resolveContext, callback) => {
+				const file = request.path;
+				if (!file) return callback();
+				fs.stat(file, (err, stat) => {
+					if (err || !stat) {
+						if (resolveContext.missingDependencies)
+							resolveContext.missingDependencies.add(file);
+						if (resolveContext.log) resolveContext.log(file + " doesn't exist");
+						return callback();
+					}
+					if (!stat.isFile()) {
+						if (resolveContext.missingDependencies)
+							resolveContext.missingDependencies.add(file);
+						if (resolveContext.log) resolveContext.log(file + " is not a file");
+						return callback();
+					}
+					if (resolveContext.fileDependencies)
+						resolveContext.fileDependencies.add(file);
+					resolver.doResolve(
+						target,
+						request,
+						"existing file: " + file,
+						resolveContext,
+						callback
+					);
+				});
+			});
+	}
+};

node_modules/enhanced-resolve/lib/ImportsFieldPlugin.js

@@ -0,0 +1,178 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Ivan Kopeykin @vankop
+*/
+
+"use strict";
+
+const path = require("path");
+const DescriptionFileUtils = require("./DescriptionFileUtils");
+const forEachBail = require("./forEachBail");
+const { processImportsField } = require("./util/entrypoints");
+const { parseIdentifier } = require("./util/identifier");
+const { checkImportsExportsFieldTarget } = require("./util/path");
+
+/** @typedef {import("./Resolver")} Resolver */
+/** @typedef {import("./Resolver").ResolveStepHook} ResolveStepHook */
+/** @typedef {import("./util/entrypoints").FieldProcessor} FieldProcessor */
+/** @typedef {import("./util/entrypoints").ImportsField} ImportsField */
+
+const dotCode = ".".charCodeAt(0);
+
+module.exports = class ImportsFieldPlugin {
+	/**
+	 * @param {string | ResolveStepHook} source source
+	 * @param {Set<string>} conditionNames condition names
+	 * @param {string | string[]} fieldNamePath name path
+	 * @param {string | ResolveStepHook} targetFile target file
+	 * @param {string | ResolveStepHook} targetPackage target package
+	 */
+	constructor(
+		source,
+		conditionNames,
+		fieldNamePath,
+		targetFile,
+		targetPackage
+	) {
+		this.source = source;
+		this.targetFile = targetFile;
+		this.targetPackage = targetPackage;
+		this.conditionNames = conditionNames;
+		this.fieldName = fieldNamePath;
+		/** @type {WeakMap<any, FieldProcessor>} */
+		this.fieldProcessorCache = new WeakMap();
+	}
+
+	/**
+	 * @param {Resolver} resolver the resolver
+	 * @returns {void}
+	 */
+	apply(resolver) {
+		const targetFile = resolver.ensureHook(this.targetFile);
+		const targetPackage = resolver.ensureHook(this.targetPackage);
+
+		resolver
+			.getHook(this.source)
+			.tapAsync("ImportsFieldPlugin", (request, resolveContext, callback) => {
+				// When there is no description file, abort
+				if (!request.descriptionFilePath || request.request === undefined) {
+					return callback();
+				}
+
+				const remainingRequest =
+					request.request + request.query + request.fragment;
+				/** @type {ImportsField|null} */
+				const importsField = DescriptionFileUtils.getField(
+					request.descriptionFileData,
+					this.fieldName
+				);
+				if (!importsField) return callback();
+
+				if (request.directory) {
+					return callback(
+						new Error(
+							`Resolving to directories is not possible with the imports field (request was ${remainingRequest}/)`
+						)
+					);
+				}
+
+				let paths;
+
+				try {
+					// We attach the cache to the description file instead of the importsField value
+					// because we use a WeakMap and the importsField could be a string too.
+					// Description file is always an object when exports field can be accessed.
+					let fieldProcessor = this.fieldProcessorCache.get(
+						request.descriptionFileData
+					);
+					if (fieldProcessor === undefined) {
+						fieldProcessor = processImportsField(importsField);
+						this.fieldProcessorCache.set(
+							request.descriptionFileData,
+							fieldProcessor
+						);
+					}
+					paths = fieldProcessor(remainingRequest, this.conditionNames);
+				} catch (err) {
+					if (resolveContext.log) {
+						resolveContext.log(
+							`Imports field in ${request.descriptionFilePath} can't be processed: ${err}`
+						);
+					}
+					return callback(err);
+				}
+
+				if (paths.length === 0) {
+					return callback(
+						new Error(
+							`Package import ${remainingRequest} is not imported from package ${request.descriptionFileRoot} (see imports field in ${request.descriptionFilePath})`
+						)
+					);
+				}
+
+				forEachBail(
+					paths,
+					(p, callback) => {
+						const parsedIdentifier = parseIdentifier(p);
+
+						if (!parsedIdentifier) return callback();
+
+						const [path_, query, fragment] = parsedIdentifier;
+
+						const error = checkImportsExportsFieldTarget(path_);
+
+						if (error) {
+							return callback(error);
+						}
+
+						switch (path_.charCodeAt(0)) {
+							// should be relative
+							case dotCode: {
+								const obj = {
+									...request,
+									request: undefined,
+									path: path.join(
+										/** @type {string} */ (request.descriptionFileRoot),
+										path_
+									),
+									relativePath: path_,
+									query,
+									fragment
+								};
+
+								resolver.doResolve(
+									targetFile,
+									obj,
+									"using imports field: " + p,
+									resolveContext,
+									callback
+								);
+								break;
+							}
+
+							// package resolving
+							default: {
+								const obj = {
+									...request,
+									request: path_,
+									relativePath: path_,
+									fullySpecified: true,
+									query,
+									fragment
+								};
+
+								resolver.doResolve(
+									targetPackage,
+									obj,
+									"using imports field: " + p,
+									resolveContext,
+									callback
+								);
+							}
+						}
+					},
+					(err, result) => callback(err, result || null)
+				);
+			});
+	}
+};

node_modules/enhanced-resolve/lib/JoinRequestPartPlugin.js

@@ -0,0 +1,64 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+
+"use strict";
+
+/** @typedef {import("./Resolver")} Resolver */
+/** @typedef {import("./Resolver").ResolveStepHook} ResolveStepHook */
+
+const namespaceStartCharCode = "@".charCodeAt(0);
+
+module.exports = class JoinRequestPartPlugin {
+	/**
+	 * @param {string | ResolveStepHook} source source
+	 * @param {string | ResolveStepHook} target target
+	 */
+	constructor(source, target) {
+		this.source = source;
+		this.target = target;
+	}
+
+	/**
+	 * @param {Resolver} resolver the resolver
+	 * @returns {void}
+	 */
+	apply(resolver) {
+		const target = resolver.ensureHook(this.target);
+		resolver
+			.getHook(this.source)
+			.tapAsync(
+				"JoinRequestPartPlugin",
+				(request, resolveContext, callback) => {
+					const req = request.request || "";
+					let i = req.indexOf("/", 3);
+
+					if (i >= 0 && req.charCodeAt(2) === namespaceStartCharCode) {
+						i = req.indexOf("/", i + 1);
+					}
+
+					let moduleName, remainingRequest, fullySpecified;
+					if (i < 0) {
+						moduleName = req;
+						remainingRequest = ".";
+						fullySpecified = false;
+					} else {
+						moduleName = req.slice(0, i);
+						remainingRequest = "." + req.slice(i);
+						fullySpecified = request.fullySpecified;
+					}
+					const obj = {
+						...request,
+						path: resolver.join(request.path, moduleName),
+						relativePath:
+							request.relativePath &&
+							resolver.join(request.relativePath, moduleName),
+						request: remainingRequest,
+						fullySpecified
+					};
+					resolver.doResolve(target, obj, null, resolveContext, callback);
+				}
+			);
+	}
+};

node_modules/enhanced-resolve/lib/JoinRequestPlugin.js

@@ -0,0 +1,41 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+
+"use strict";
+
+/** @typedef {import("./Resolver")} Resolver */
+/** @typedef {import("./Resolver").ResolveStepHook} ResolveStepHook */
+
+module.exports = class JoinRequestPlugin {
+	/**
+	 * @param {string | ResolveStepHook} source source
+	 * @param {string | ResolveStepHook} target target
+	 */
+	constructor(source, target) {
+		this.source = source;
+		this.target = target;
+	}
+
+	/**
+	 * @param {Resolver} resolver the resolver
+	 * @returns {void}
+	 */
+	apply(resolver) {
+		const target = resolver.ensureHook(this.target);
+		resolver
+			.getHook(this.source)
+			.tapAsync("JoinRequestPlugin", (request, resolveContext, callback) => {
+				const obj = {
+					...request,
+					path: resolver.join(request.path, request.request),
+					relativePath:
+						request.relativePath &&
+						resolver.join(request.relativePath, request.request),
+					request: undefined
+				};
+				resolver.doResolve(target, obj, null, resolveContext, callback);
+			});
+	}
+};

node_modules/enhanced-resolve/lib/LogInfoPlugin.js

@@ -0,0 +1,50 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+
+"use strict";
+
+/** @typedef {import("./Resolver")} Resolver */
+
+module.exports = class LogInfoPlugin {
+	constructor(source) {
+		this.source = source;
+	}
+
+	/**
+	 * @param {Resolver} resolver the resolver
+	 * @returns {void}
+	 */
+	apply(resolver) {
+		const source = this.source;
+		resolver
+			.getHook(this.source)
+			.tapAsync("LogInfoPlugin", (request, resolveContext, callback) => {
+				if (!resolveContext.log) return callback();
+				const log = resolveContext.log;
+				const prefix = "[" + source + "] ";
+				if (request.path)
+					log(prefix + "Resolving in directory: " + request.path);
+				if (request.request)
+					log(prefix + "Resolving request: " + request.request);
+				if (request.module) log(prefix + "Request is an module request.");
+				if (request.directory) log(prefix + "Request is a directory request.");
+				if (request.query)
+					log(prefix + "Resolving request query: " + request.query);
+				if (request.fragment)
+					log(prefix + "Resolving request fragment: " + request.fragment);
+				if (request.descriptionFilePath)
+					log(
+						prefix + "Has description data from " + request.descriptionFilePath
+					);
+				if (request.relativePath)
+					log(
+						prefix +
+							"Relative path from description file is: " +
+							request.relativePath
+					);
+				callback();
+			});
+	}
+};

node_modules/enhanced-resolve/lib/MainFieldPlugin.js

@@ -0,0 +1,81 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+
+"use strict";
+
+const path = require("path");
+const DescriptionFileUtils = require("./DescriptionFileUtils");
+
+/** @typedef {import("./Resolver")} Resolver */
+/** @typedef {import("./Resolver").ResolveStepHook} ResolveStepHook */
+/** @typedef {{name: string|Array<string>, forceRelative: boolean}} MainFieldOptions */
+
+const alreadyTriedMainField = Symbol("alreadyTriedMainField");
+
+module.exports = class MainFieldPlugin {
+	/**
+	 * @param {string | ResolveStepHook} source source
+	 * @param {MainFieldOptions} options options
+	 * @param {string | ResolveStepHook} target target
+	 */
+	constructor(source, options, target) {
+		this.source = source;
+		this.options = options;
+		this.target = target;
+	}
+
+	/**
+	 * @param {Resolver} resolver the resolver
+	 * @returns {void}
+	 */
+	apply(resolver) {
+		const target = resolver.ensureHook(this.target);
+		resolver
+			.getHook(this.source)
+			.tapAsync("MainFieldPlugin", (request, resolveContext, callback) => {
+				if (
+					request.path !== request.descriptionFileRoot ||
+					request[alreadyTriedMainField] === request.descriptionFilePath ||
+					!request.descriptionFilePath
+				)
+					return callback();
+				const filename = path.basename(request.descriptionFilePath);
+				let mainModule = DescriptionFileUtils.getField(
+					request.descriptionFileData,
+					this.options.name
+				);
+
+				if (
+					!mainModule ||
+					typeof mainModule !== "string" ||
+					mainModule === "." ||
+					mainModule === "./"
+				) {
+					return callback();
+				}
+				if (this.options.forceRelative && !/^\.\.?\//.test(mainModule))
+					mainModule = "./" + mainModule;
+				const obj = {
+					...request,
+					request: mainModule,
+					module: false,
+					directory: mainModule.endsWith("/"),
+					[alreadyTriedMainField]: request.descriptionFilePath
+				};
+				return resolver.doResolve(
+					target,
+					obj,
+					"use " +
+						mainModule +
+						" from " +
+						this.options.name +
+						" in " +
+						filename,
+					resolveContext,
+					callback
+				);
+			});
+	}
+};

node_modules/enhanced-resolve/lib/ModulesInHierachicDirectoriesPlugin.js

@@ -0,0 +1,9 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+
+"use strict";
+
+// TODO remove in next major
+module.exports = require("./ModulesInHierarchicalDirectoriesPlugin");

node_modules/enhanced-resolve/lib/ModulesInHierarchicalDirectoriesPlugin.js

@@ -0,0 +1,80 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+
+"use strict";
+
+const forEachBail = require("./forEachBail");
+const getPaths = require("./getPaths");
+
+/** @typedef {import("./Resolver")} Resolver */
+/** @typedef {import("./Resolver").ResolveStepHook} ResolveStepHook */
+
+module.exports = class ModulesInHierarchicalDirectoriesPlugin {
+	/**
+	 * @param {string | ResolveStepHook} source source
+	 * @param {string | Array<string>} directories directories
+	 * @param {string | ResolveStepHook} target target
+	 */
+	constructor(source, directories, target) {
+		this.source = source;
+		this.directories = /** @type {Array<string>} */ ([]).concat(directories);
+		this.target = target;
+	}
+
+	/**
+	 * @param {Resolver} resolver the resolver
+	 * @returns {void}
+	 */
+	apply(resolver) {
+		const target = resolver.ensureHook(this.target);
+		resolver
+			.getHook(this.source)
+			.tapAsync(
+				"ModulesInHierarchicalDirectoriesPlugin",
+				(request, resolveContext, callback) => {
+					const fs = resolver.fileSystem;
+					const addrs = getPaths(request.path)
+						.paths.map(p => {
+							return this.directories.map(d => resolver.join(p, d));
+						})
+						.reduce((array, p) => {
+							array.push.apply(array, p);
+							return array;
+						}, []);
+					forEachBail(
+						addrs,
+						(addr, callback) => {
+							fs.stat(addr, (err, stat) => {
+								if (!err && stat && stat.isDirectory()) {
+									const obj = {
+										...request,
+										path: addr,
+										request: "./" + request.request,
+										module: false
+									};
+									const message = "looking for modules in " + addr;
+									return resolver.doResolve(
+										target,
+										obj,
+										message,
+										resolveContext,
+										callback
+									);
+								}
+								if (resolveContext.log)
+									resolveContext.log(
+										addr + " doesn't exist or is not a directory"
+									);
+								if (resolveContext.missingDependencies)
+									resolveContext.missingDependencies.add(addr);
+								return callback();
+							});
+						},
+						callback
+					);
+				}
+			);
+	}
+};

node_modules/enhanced-resolve/lib/ModulesInRootPlugin.js

@@ -0,0 +1,47 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+
+"use strict";
+
+/** @typedef {import("./Resolver")} Resolver */
+/** @typedef {import("./Resolver").ResolveStepHook} ResolveStepHook */
+
+module.exports = class ModulesInRootPlugin {
+	/**
+	 * @param {string | ResolveStepHook} source source
+	 * @param {string} path path
+	 * @param {string | ResolveStepHook} target target
+	 */
+	constructor(source, path, target) {
+		this.source = source;
+		this.path = path;
+		this.target = target;
+	}
+
+	/**
+	 * @param {Resolver} resolver the resolver
+	 * @returns {void}
+	 */
+	apply(resolver) {
+		const target = resolver.ensureHook(this.target);
+		resolver
+			.getHook(this.source)
+			.tapAsync("ModulesInRootPlugin", (request, resolveContext, callback) => {
+				const obj = {
+					...request,
+					path: this.path,
+					request: "./" + request.request,
+					module: false
+				};
+				resolver.doResolve(
+					target,
+					obj,
+					"looking for modules in " + this.path,
+					resolveContext,
+					callback
+				);
+			});
+	}
+};

node_modules/enhanced-resolve/lib/NextPlugin.js

@@ -0,0 +1,33 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+
+"use strict";
+
+/** @typedef {import("./Resolver")} Resolver */
+/** @typedef {import("./Resolver").ResolveStepHook} ResolveStepHook */
+
+module.exports = class NextPlugin {
+	/**
+	 * @param {string | ResolveStepHook} source source
+	 * @param {string | ResolveStepHook} target target
+	 */
+	constructor(source, target) {
+		this.source = source;
+		this.target = target;
+	}
+
+	/**
+	 * @param {Resolver} resolver the resolver
+	 * @returns {void}
+	 */
+	apply(resolver) {
+		const target = resolver.ensureHook(this.target);
+		resolver
+			.getHook(this.source)
+			.tapAsync("NextPlugin", (request, resolveContext, callback) => {
+				resolver.doResolve(target, request, null, resolveContext, callback);
+			});
+	}
+};

node_modules/enhanced-resolve/lib/ParsePlugin.js

@@ -0,0 +1,74 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+
+"use strict";
+
+/** @typedef {import("./Resolver")} Resolver */
+/** @typedef {import("./Resolver").ResolveRequest} ResolveRequest */
+/** @typedef {import("./Resolver").ResolveStepHook} ResolveStepHook */
+
+module.exports = class ParsePlugin {
+	/**
+	 * @param {string | ResolveStepHook} source source
+	 * @param {Partial<ResolveRequest>} requestOptions request options
+	 * @param {string | ResolveStepHook} target target
+	 */
+	constructor(source, requestOptions, target) {
+		this.source = source;
+		this.requestOptions = requestOptions;
+		this.target = target;
+	}
+
+	/**
+	 * @param {Resolver} resolver the resolver
+	 * @returns {void}
+	 */
+	apply(resolver) {
+		const target = resolver.ensureHook(this.target);
+		resolver
+			.getHook(this.source)
+			.tapAsync("ParsePlugin", (request, resolveContext, callback) => {
+				const parsed = resolver.parse(/** @type {string} */ (request.request));
+				const obj = { ...request, ...parsed, ...this.requestOptions };
+				if (request.query && !parsed.query) {
+					obj.query = request.query;
+				}
+				if (request.fragment && !parsed.fragment) {
+					obj.fragment = request.fragment;
+				}
+				if (parsed && resolveContext.log) {
+					if (parsed.module) resolveContext.log("Parsed request is a module");
+					if (parsed.directory)
+						resolveContext.log("Parsed request is a directory");
+				}
+				// There is an edge-case where a request with # can be a path or a fragment -> try both
+				if (obj.request && !obj.query && obj.fragment) {
+					const directory = obj.fragment.endsWith("/");
+					const alternative = {
+						...obj,
+						directory,
+						request:
+							obj.request +
+							(obj.directory ? "/" : "") +
+							(directory ? obj.fragment.slice(0, -1) : obj.fragment),
+						fragment: ""
+					};
+					resolver.doResolve(
+						target,
+						alternative,
+						null,
+						resolveContext,
+						(err, result) => {
+							if (err) return callback(err);
+							if (result) return callback(null, result);
+							resolver.doResolve(target, obj, null, resolveContext, callback);
+						}
+					);
+					return;
+				}
+				resolver.doResolve(target, obj, null, resolveContext, callback);
+			});
+	}
+};

node_modules/enhanced-resolve/lib/PnpPlugin.js

@@ -0,0 +1,103 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Maël Nison @arcanis
+*/
+
+"use strict";
+
+/** @typedef {import("./Resolver")} Resolver */
+/** @typedef {import("./Resolver").ResolveStepHook} ResolveStepHook */
+/**
+ * @typedef {Object} PnpApiImpl
+ * @property {function(string, string, object): string} resolveToUnqualified
+ */
+
+module.exports = class PnpPlugin {
+	/**
+	 * @param {string | ResolveStepHook} source source
+	 * @param {PnpApiImpl} pnpApi pnpApi
+	 * @param {string | ResolveStepHook} target target
+	 */
+	constructor(source, pnpApi, target) {
+		this.source = source;
+		this.pnpApi = pnpApi;
+		this.target = target;
+	}
+
+	/**
+	 * @param {Resolver} resolver the resolver
+	 * @returns {void}
+	 */
+	apply(resolver) {
+		const target = resolver.ensureHook(this.target);
+		resolver
+			.getHook(this.source)
+			.tapAsync("PnpPlugin", (request, resolveContext, callback) => {
+				const req = request.request;
+				if (!req) return callback();
+
+				// The trailing slash indicates to PnP that this value is a folder rather than a file
+				const issuer = `${request.path}/`;
+
+				const packageMatch = /^(@[^/]+\/)?[^/]+/.exec(req);
+				if (!packageMatch) return callback();
+
+				const packageName = packageMatch[0];
+				const innerRequest = `.${req.slice(packageName.length)}`;
+
+				let resolution;
+				let apiResolution;
+				try {
+					resolution = this.pnpApi.resolveToUnqualified(packageName, issuer, {
+						considerBuiltins: false
+					});
+					if (resolveContext.fileDependencies) {
+						apiResolution = this.pnpApi.resolveToUnqualified("pnpapi", issuer, {
+							considerBuiltins: false
+						});
+					}
+				} catch (error) {
+					if (
+						error.code === "MODULE_NOT_FOUND" &&
+						error.pnpCode === "UNDECLARED_DEPENDENCY"
+					) {
+						// This is not a PnP managed dependency.
+						// Try to continue resolving with our alternatives
+						if (resolveContext.log) {
+							resolveContext.log(`request is not managed by the pnpapi`);
+							for (const line of error.message.split("\n").filter(Boolean))
+								resolveContext.log(`  ${line}`);
+						}
+						return callback();
+					}
+					return callback(error);
+				}
+
+				if (resolution === packageName) return callback();
+
+				if (apiResolution && resolveContext.fileDependencies) {
+					resolveContext.fileDependencies.add(apiResolution);
+				}
+
+				const obj = {
+					...request,
+					path: resolution,
+					request: innerRequest,
+					ignoreSymlinks: true,
+					fullySpecified: request.fullySpecified && innerRequest !== "."
+				};
+				resolver.doResolve(
+					target,
+					obj,
+					`resolved by pnp to ${resolution}`,
+					resolveContext,
+					(err, result) => {
+						if (err) return callback(err);
+						if (result) return callback(null, result);
+						// Skip alternatives
+						return callback(null, null);
+					}
+				);
+			});
+	}
+};

node_modules/enhanced-resolve/lib/RestrictionsPlugin.js

@@ -0,0 +1,65 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Ivan Kopeykin @vankop
+*/
+
+"use strict";
+
+/** @typedef {import("./Resolver")} Resolver */
+/** @typedef {import("./Resolver").ResolveStepHook} ResolveStepHook */
+
+const slashCode = "/".charCodeAt(0);
+const backslashCode = "\\".charCodeAt(0);
+
+const isInside = (path, parent) => {
+	if (!path.startsWith(parent)) return false;
+	if (path.length === parent.length) return true;
+	const charCode = path.charCodeAt(parent.length);
+	return charCode === slashCode || charCode === backslashCode;
+};
+
+module.exports = class RestrictionsPlugin {
+	/**
+	 * @param {string | ResolveStepHook} source source
+	 * @param {Set<string | RegExp>} restrictions restrictions
+	 */
+	constructor(source, restrictions) {
+		this.source = source;
+		this.restrictions = restrictions;
+	}
+
+	/**
+	 * @param {Resolver} resolver the resolver
+	 * @returns {void}
+	 */
+	apply(resolver) {
+		resolver
+			.getHook(this.source)
+			.tapAsync("RestrictionsPlugin", (request, resolveContext, callback) => {
+				if (typeof request.path === "string") {
+					const path = request.path;
+					for (const rule of this.restrictions) {
+						if (typeof rule === "string") {
+							if (!isInside(path, rule)) {
+								if (resolveContext.log) {
+									resolveContext.log(
+										`${path} is not inside of the restriction ${rule}`
+									);
+								}
+								return callback(null, null);
+							}
+						} else if (!rule.test(path)) {
+							if (resolveContext.log) {
+								resolveContext.log(
+									`${path} doesn't match the restriction ${rule}`
+								);
+							}
+							return callback(null, null);
+						}
+					}
+				}
+
+				callback();
+			});
+	}
+};

node_modules/enhanced-resolve/lib/ResultPlugin.js

@@ -0,0 +1,42 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+
+"use strict";
+
+/** @typedef {import("./Resolver")} Resolver */
+/** @typedef {import("./Resolver").ResolveStepHook} ResolveStepHook */
+
+module.exports = class ResultPlugin {
+	/**
+	 * @param {ResolveStepHook} source source
+	 */
+	constructor(source) {
+		this.source = source;
+	}
+
+	/**
+	 * @param {Resolver} resolver the resolver
+	 * @returns {void}
+	 */
+	apply(resolver) {
+		this.source.tapAsync(
+			"ResultPlugin",
+			(request, resolverContext, callback) => {
+				const obj = { ...request };
+				if (resolverContext.log)
+					resolverContext.log("reporting result " + obj.path);
+				resolver.hooks.result.callAsync(obj, resolverContext, err => {
+					if (err) return callback(err);
+					if (typeof resolverContext.yield === "function") {
+						resolverContext.yield(obj);
+						callback(null, null);
+					} else {
+						callback(null, obj);
+					}
+				});
+			}
+		);
+	}
+};

node_modules/enhanced-resolve/lib/RootsPlugin.js

@@ -0,0 +1,62 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Ivan Kopeykin @vankop
+*/
+
+"use strict";
+
+const forEachBail = require("./forEachBail");
+
+/** @typedef {import("./Resolver")} Resolver */
+/** @typedef {import("./Resolver").ResolveStepHook} ResolveStepHook */
+
+class RootsPlugin {
+	/**
+	 * @param {string | ResolveStepHook} source source hook
+	 * @param {Set<string>} roots roots
+	 * @param {string | ResolveStepHook} target target hook
+	 */
+	constructor(source, roots, target) {
+		this.roots = Array.from(roots);
+		this.source = source;
+		this.target = target;
+	}
+
+	/**
+	 * @param {Resolver} resolver the resolver
+	 * @returns {void}
+	 */
+	apply(resolver) {
+		const target = resolver.ensureHook(this.target);
+
+		resolver
+			.getHook(this.source)
+			.tapAsync("RootsPlugin", (request, resolveContext, callback) => {
+				const req = request.request;
+				if (!req) return callback();
+				if (!req.startsWith("/")) return callback();
+
+				forEachBail(
+					this.roots,
+					(root, callback) => {
+						const path = resolver.join(root, req.slice(1));
+						const obj = {
+							...request,
+							path,
+							relativePath: request.relativePath && path
+						};
+						resolver.doResolve(
+							target,
+							obj,
+							`root path ${root}`,
+							resolveContext,
+							callback
+						);
+					},
+					callback
+				);
+			});
+	}
+}
+
+module.exports = RootsPlugin;

node_modules/enhanced-resolve/lib/SelfReferencePlugin.js

@@ -0,0 +1,80 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+
+"use strict";
+
+const DescriptionFileUtils = require("./DescriptionFileUtils");
+
+/** @typedef {import("./Resolver")} Resolver */
+/** @typedef {import("./Resolver").ResolveStepHook} ResolveStepHook */
+
+const slashCode = "/".charCodeAt(0);
+
+module.exports = class SelfReferencePlugin {
+	/**
+	 * @param {string | ResolveStepHook} source source
+	 * @param {string | string[]} fieldNamePath name path
+	 * @param {string | ResolveStepHook} target target
+	 */
+	constructor(source, fieldNamePath, target) {
+		this.source = source;
+		this.target = target;
+		this.fieldName = fieldNamePath;
+	}
+
+	/**
+	 * @param {Resolver} resolver the resolver
+	 * @returns {void}
+	 */
+	apply(resolver) {
+		const target = resolver.ensureHook(this.target);
+		resolver
+			.getHook(this.source)
+			.tapAsync("SelfReferencePlugin", (request, resolveContext, callback) => {
+				if (!request.descriptionFilePath) return callback();
+
+				const req = request.request;
+				if (!req) return callback();
+
+				// Feature is only enabled when an exports field is present
+				const exportsField = DescriptionFileUtils.getField(
+					request.descriptionFileData,
+					this.fieldName
+				);
+				if (!exportsField) return callback();
+
+				const name = DescriptionFileUtils.getField(
+					request.descriptionFileData,
+					"name"
+				);
+				if (typeof name !== "string") return callback();
+
+				if (
+					req.startsWith(name) &&
+					(req.length === name.length ||
+						req.charCodeAt(name.length) === slashCode)
+				) {
+					const remainingRequest = `.${req.slice(name.length)}`;
+
+					const obj = {
+						...request,
+						request: remainingRequest,
+						path: /** @type {string} */ (request.descriptionFileRoot),
+						relativePath: "."
+					};
+
+					resolver.doResolve(
+						target,
+						obj,
+						"self reference",
+						resolveContext,
+						callback
+					);
+				} else {
+					return callback();
+				}
+			});
+	}
+};

node_modules/enhanced-resolve/lib/SymlinkPlugin.js

@@ -0,0 +1,88 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+
+"use strict";
+
+const forEachBail = require("./forEachBail");
+const getPaths = require("./getPaths");
+const { getType, PathType } = require("./util/path");
+
+/** @typedef {import("./Resolver")} Resolver */
+/** @typedef {import("./Resolver").ResolveStepHook} ResolveStepHook */
+
+module.exports = class SymlinkPlugin {
+	/**
+	 * @param {string | ResolveStepHook} source source
+	 * @param {string | ResolveStepHook} target target
+	 */
+	constructor(source, target) {
+		this.source = source;
+		this.target = target;
+	}
+
+	/**
+	 * @param {Resolver} resolver the resolver
+	 * @returns {void}
+	 */
+	apply(resolver) {
+		const target = resolver.ensureHook(this.target);
+		const fs = resolver.fileSystem;
+		resolver
+			.getHook(this.source)
+			.tapAsync("SymlinkPlugin", (request, resolveContext, callback) => {
+				if (request.ignoreSymlinks) return callback();
+				const pathsResult = getPaths(request.path);
+				const pathSegments = pathsResult.segments;
+				const paths = pathsResult.paths;
+
+				let containsSymlink = false;
+				let idx = -1;
+				forEachBail(
+					paths,
+					(path, callback) => {
+						idx++;
+						if (resolveContext.fileDependencies)
+							resolveContext.fileDependencies.add(path);
+						fs.readlink(path, (err, result) => {
+							if (!err && result) {
+								pathSegments[idx] = result;
+								containsSymlink = true;
+								// Shortcut when absolute symlink found
+								const resultType = getType(result.toString());
+								if (
+									resultType === PathType.AbsoluteWin ||
+									resultType === PathType.AbsolutePosix
+								) {
+									return callback(null, idx);
+								}
+							}
+							callback();
+						});
+					},
+					(err, idx) => {
+						if (!containsSymlink) return callback();
+						const resultSegments =
+							typeof idx === "number"
+								? pathSegments.slice(0, idx + 1)
+								: pathSegments.slice();
+						const result = resultSegments.reduceRight((a, b) => {
+							return resolver.join(a, b);
+						});
+						const obj = {
+							...request,
+							path: result
+						};
+						resolver.doResolve(
+							target,
+							obj,
+							"resolved symlink to " + result,
+							resolveContext,
+							callback
+						);
+					}
+				);
+			});
+	}
+};

node_modules/enhanced-resolve/lib/SyncAsyncFileSystemDecorator.js

@@ -0,0 +1,95 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+
+"use strict";
+
+/** @typedef {import("./Resolver").FileSystem} FileSystem */
+/** @typedef {import("./Resolver").SyncFileSystem} SyncFileSystem */
+
+/**
+ * @param {SyncFileSystem} fs file system implementation
+ * @constructor
+ */
+function SyncAsyncFileSystemDecorator(fs) {
+	this.fs = fs;
+
+	this.lstat = undefined;
+	this.lstatSync = undefined;
+	const lstatSync = fs.lstatSync;
+	if (lstatSync) {
+		this.lstat = (arg, options, callback) => {
+			let result;
+			try {
+				result = lstatSync.call(fs, arg);
+			} catch (e) {
+				return (callback || options)(e);
+			}
+			(callback || options)(null, result);
+		};
+		this.lstatSync = (arg, options) => lstatSync.call(fs, arg, options);
+	}
+
+	this.stat = (arg, options, callback) => {
+		let result;
+		try {
+			result = callback ? fs.statSync(arg, options) : fs.statSync(arg);
+		} catch (e) {
+			return (callback || options)(e);
+		}
+		(callback || options)(null, result);
+	};
+	this.statSync = (arg, options) => fs.statSync(arg, options);
+
+	this.readdir = (arg, options, callback) => {
+		let result;
+		try {
+			result = fs.readdirSync(arg);
+		} catch (e) {
+			return (callback || options)(e);
+		}
+		(callback || options)(null, result);
+	};
+	this.readdirSync = (arg, options) => fs.readdirSync(arg, options);
+
+	this.readFile = (arg, options, callback) => {
+		let result;
+		try {
+			result = fs.readFileSync(arg);
+		} catch (e) {
+			return (callback || options)(e);
+		}
+		(callback || options)(null, result);
+	};
+	this.readFileSync = (arg, options) => fs.readFileSync(arg, options);
+
+	this.readlink = (arg, options, callback) => {
+		let result;
+		try {
+			result = fs.readlinkSync(arg);
+		} catch (e) {
+			return (callback || options)(e);
+		}
+		(callback || options)(null, result);
+	};
+	this.readlinkSync = (arg, options) => fs.readlinkSync(arg, options);
+
+	this.readJson = undefined;
+	this.readJsonSync = undefined;
+	const readJsonSync = fs.readJsonSync;
+	if (readJsonSync) {
+		this.readJson = (arg, options, callback) => {
+			let result;
+			try {
+				result = readJsonSync.call(fs, arg);
+			} catch (e) {
+				return (callback || options)(e);
+			}
+			(callback || options)(null, result);
+		};
+
+		this.readJsonSync = (arg, options) => readJsonSync.call(fs, arg, options);
+	}
+}
+module.exports = SyncAsyncFileSystemDecorator;

node_modules/enhanced-resolve/lib/TryNextPlugin.js

@@ -0,0 +1,41 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+
+"use strict";
+
+/** @typedef {import("./Resolver")} Resolver */
+/** @typedef {import("./Resolver").ResolveStepHook} ResolveStepHook */
+
+module.exports = class TryNextPlugin {
+	/**
+	 * @param {string | ResolveStepHook} source source
+	 * @param {string} message message
+	 * @param {string | ResolveStepHook} target target
+	 */
+	constructor(source, message, target) {
+		this.source = source;
+		this.message = message;
+		this.target = target;
+	}
+
+	/**
+	 * @param {Resolver} resolver the resolver
+	 * @returns {void}
+	 */
+	apply(resolver) {
+		const target = resolver.ensureHook(this.target);
+		resolver
+			.getHook(this.source)
+			.tapAsync("TryNextPlugin", (request, resolveContext, callback) => {
+				resolver.doResolve(
+					target,
+					request,
+					this.message,
+					resolveContext,
+					callback
+				);
+			});
+	}
+};

node_modules/enhanced-resolve/lib/UnsafeCachePlugin.js

@@ -0,0 +1,99 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+
+"use strict";
+
+/** @typedef {import("./Resolver")} Resolver */
+/** @typedef {import("./Resolver").ResolveRequest} ResolveRequest */
+/** @typedef {import("./Resolver").ResolveStepHook} ResolveStepHook */
+/** @typedef {{[k: string]: any}} Cache */
+
+function getCacheId(type, request, withContext) {
+	return JSON.stringify({
+		type,
+		context: withContext ? request.context : "",
+		path: request.path,
+		query: request.query,
+		fragment: request.fragment,
+		request: request.request
+	});
+}
+
+module.exports = class UnsafeCachePlugin {
+	/**
+	 * @param {string | ResolveStepHook} source source
+	 * @param {function(ResolveRequest): boolean} filterPredicate filterPredicate
+	 * @param {Cache} cache cache
+	 * @param {boolean} withContext withContext
+	 * @param {string | ResolveStepHook} target target
+	 */
+	constructor(source, filterPredicate, cache, withContext, target) {
+		this.source = source;
+		this.filterPredicate = filterPredicate;
+		this.withContext = withContext;
+		this.cache = cache;
+		this.target = target;
+	}
+
+	/**
+	 * @param {Resolver} resolver the resolver
+	 * @returns {void}
+	 */
+	apply(resolver) {
+		const target = resolver.ensureHook(this.target);
+		resolver
+			.getHook(this.source)
+			.tapAsync("UnsafeCachePlugin", (request, resolveContext, callback) => {
+				if (!this.filterPredicate(request)) return callback();
+				const isYield = typeof resolveContext.yield === "function";
+				const cacheId = getCacheId(
+					isYield ? "yield" : "default",
+					request,
+					this.withContext
+				);
+				const cacheEntry = this.cache[cacheId];
+				if (cacheEntry) {
+					if (isYield) {
+						const yield_ = /** @type {Function} */ (resolveContext.yield);
+						if (Array.isArray(cacheEntry)) {
+							for (const result of cacheEntry) yield_(result);
+						} else {
+							yield_(cacheEntry);
+						}
+						return callback(null, null);
+					}
+					return callback(null, cacheEntry);
+				}
+
+				let yieldFn;
+				let yield_;
+				const yieldResult = [];
+				if (isYield) {
+					yieldFn = resolveContext.yield;
+					yield_ = result => {
+						yieldResult.push(result);
+					};
+				}
+
+				resolver.doResolve(
+					target,
+					request,
+					null,
+					yield_ ? { ...resolveContext, yield: yield_ } : resolveContext,
+					(err, result) => {
+						if (err) return callback(err);
+						if (isYield) {
+							if (result) yieldResult.push(result);
+							for (const result of yieldResult) yieldFn(result);
+							this.cache[cacheId] = yieldResult;
+							return callback(null, null);
+						}
+						if (result) return callback(null, (this.cache[cacheId] = result));
+						callback();
+					}
+				);
+			});
+	}
+};

node_modules/enhanced-resolve/lib/UseFilePlugin.js

@@ -0,0 +1,49 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+
+"use strict";
+
+/** @typedef {import("./Resolver")} Resolver */
+/** @typedef {import("./Resolver").ResolveStepHook} ResolveStepHook */
+
+module.exports = class UseFilePlugin {
+	/**
+	 * @param {string | ResolveStepHook} source source
+	 * @param {string} filename filename
+	 * @param {string | ResolveStepHook} target target
+	 */
+	constructor(source, filename, target) {
+		this.source = source;
+		this.filename = filename;
+		this.target = target;
+	}
+
+	/**
+	 * @param {Resolver} resolver the resolver
+	 * @returns {void}
+	 */
+	apply(resolver) {
+		const target = resolver.ensureHook(this.target);
+		resolver
+			.getHook(this.source)
+			.tapAsync("UseFilePlugin", (request, resolveContext, callback) => {
+				const filePath = resolver.join(request.path, this.filename);
+				const obj = {
+					...request,
+					path: filePath,
+					relativePath:
+						request.relativePath &&
+						resolver.join(request.relativePath, this.filename)
+				};
+				resolver.doResolve(
+					target,
+					obj,
+					"using path: " + filePath,
+					resolveContext,
+					callback
+				);
+			});
+	}
+};

node_modules/enhanced-resolve/lib/createInnerContext.js

@@ -0,0 +1,37 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+
+"use strict";
+
+module.exports = function createInnerContext(
+	options,
+	message,
+	messageOptional
+) {
+	let messageReported = false;
+	let innerLog = undefined;
+	if (options.log) {
+		if (message) {
+			innerLog = msg => {
+				if (!messageReported) {
+					options.log(message);
+					messageReported = true;
+				}
+				options.log("  " + msg);
+			};
+		} else {
+			innerLog = options.log;
+		}
+	}
+	const childContext = {
+		log: innerLog,
+		yield: options.yield,
+		fileDependencies: options.fileDependencies,
+		contextDependencies: options.contextDependencies,
+		missingDependencies: options.missingDependencies,
+		stack: options.stack
+	};
+	return childContext;
+};

node_modules/enhanced-resolve/lib/forEachBail.js

@@ -0,0 +1,25 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+
+"use strict";
+
+module.exports = function forEachBail(array, iterator, callback) {
+	if (array.length === 0) return callback();
+
+	let i = 0;
+	const next = () => {
+		let loop = undefined;
+		iterator(array[i++], (err, result) => {
+			if (err || result !== undefined || i >= array.length) {
+				return callback(err, result);
+			}
+			if (loop === false) while (next());
+			loop = true;
+		});
+		if (!loop) loop = false;
+		return loop;
+	};
+	while (next());
+};

node_modules/enhanced-resolve/lib/getInnerRequest.js

@@ -0,0 +1,27 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+
+"use strict";
+
+module.exports = function getInnerRequest(resolver, request) {
+	if (
+		typeof request.__innerRequest === "string" &&
+		request.__innerRequest_request === request.request &&
+		request.__innerRequest_relativePath === request.relativePath
+	)
+		return request.__innerRequest;
+	let innerRequest;
+	if (request.request) {
+		innerRequest = request.request;
+		if (/^\.\.?(?:\/|$)/.test(innerRequest) && request.relativePath) {
+			innerRequest = resolver.join(request.relativePath, innerRequest);
+		}
+	} else {
+		innerRequest = request.relativePath;
+	}
+	request.__innerRequest_request = request.request;
+	request.__innerRequest_relativePath = request.relativePath;
+	return (request.__innerRequest = innerRequest);
+};

node_modules/enhanced-resolve/lib/getPaths.js

@@ -0,0 +1,37 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+
+"use strict";
+
+module.exports = function getPaths(path) {
+	if (path === "/") return { paths: ["/"], segments: [""] };
+	const parts = path.split(/(.*?[\\/]+)/);
+	const paths = [path];
+	const segments = [parts[parts.length - 1]];
+	let part = parts[parts.length - 1];
+	path = path.substr(0, path.length - part.length - 1);
+	for (let i = parts.length - 2; i > 2; i -= 2) {
+		paths.push(path);
+		part = parts[i];
+		path = path.substr(0, path.length - part.length) || "/";
+		segments.push(part.substr(0, part.length - 1));
+	}
+	part = parts[1];
+	segments.push(part);
+	paths.push(part);
+	return {
+		paths: paths,
+		segments: segments
+	};
+};
+
+module.exports.basename = function basename(path) {
+	const i = path.lastIndexOf("/"),
+		j = path.lastIndexOf("\\");
+	const p = i < 0 ? j : j < 0 ? i : i < j ? j : i;
+	if (p < 0) return null;
+	const s = path.substr(p + 1);
+	return s;
+};

node_modules/enhanced-resolve/lib/index.js

@@ -0,0 +1,131 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+
+"use strict";
+
+const fs = require("graceful-fs");
+const CachedInputFileSystem = require("./CachedInputFileSystem");
+const ResolverFactory = require("./ResolverFactory");
+
+/** @typedef {import("./PnpPlugin").PnpApiImpl} PnpApi */
+/** @typedef {import("./Resolver")} Resolver */
+/** @typedef {import("./Resolver").FileSystem} FileSystem */
+/** @typedef {import("./Resolver").ResolveContext} ResolveContext */
+/** @typedef {import("./Resolver").ResolveRequest} ResolveRequest */
+/** @typedef {import("./ResolverFactory").Plugin} Plugin */
+/** @typedef {import("./ResolverFactory").UserResolveOptions} ResolveOptions */
+
+const nodeFileSystem = new CachedInputFileSystem(fs, 4000);
+
+const nodeContext = {
+	environments: ["node+es3+es5+process+native"]
+};
+
+const asyncResolver = ResolverFactory.createResolver({
+	conditionNames: ["node"],
+	extensions: [".js", ".json", ".node"],
+	fileSystem: nodeFileSystem
+});
+function resolve(context, path, request, resolveContext, callback) {
+	if (typeof context === "string") {
+		callback = resolveContext;
+		resolveContext = request;
+		request = path;
+		path = context;
+		context = nodeContext;
+	}
+	if (typeof callback !== "function") {
+		callback = resolveContext;
+	}
+	asyncResolver.resolve(context, path, request, resolveContext, callback);
+}
+
+const syncResolver = ResolverFactory.createResolver({
+	conditionNames: ["node"],
+	extensions: [".js", ".json", ".node"],
+	useSyncFileSystemCalls: true,
+	fileSystem: nodeFileSystem
+});
+function resolveSync(context, path, request) {
+	if (typeof context === "string") {
+		request = path;
+		path = context;
+		context = nodeContext;
+	}
+	return syncResolver.resolveSync(context, path, request);
+}
+
+function create(options) {
+	options = {
+		fileSystem: nodeFileSystem,
+		...options
+	};
+	const resolver = ResolverFactory.createResolver(options);
+	return function (context, path, request, resolveContext, callback) {
+		if (typeof context === "string") {
+			callback = resolveContext;
+			resolveContext = request;
+			request = path;
+			path = context;
+			context = nodeContext;
+		}
+		if (typeof callback !== "function") {
+			callback = resolveContext;
+		}
+		resolver.resolve(context, path, request, resolveContext, callback);
+	};
+}
+
+function createSync(options) {
+	options = {
+		useSyncFileSystemCalls: true,
+		fileSystem: nodeFileSystem,
+		...options
+	};
+	const resolver = ResolverFactory.createResolver(options);
+	return function (context, path, request) {
+		if (typeof context === "string") {
+			request = path;
+			path = context;
+			context = nodeContext;
+		}
+		return resolver.resolveSync(context, path, request);
+	};
+}
+
+/**
+ * @template A
+ * @template B
+ * @param {A} obj input a
+ * @param {B} exports input b
+ * @returns {A & B} merged
+ */
+const mergeExports = (obj, exports) => {
+	const descriptors = Object.getOwnPropertyDescriptors(exports);
+	Object.defineProperties(obj, descriptors);
+	return /** @type {A & B} */ (Object.freeze(obj));
+};
+
+module.exports = mergeExports(resolve, {
+	get sync() {
+		return resolveSync;
+	},
+	create: mergeExports(create, {
+		get sync() {
+			return createSync;
+		}
+	}),
+	ResolverFactory,
+	CachedInputFileSystem,
+	get CloneBasenamePlugin() {
+		return require("./CloneBasenamePlugin");
+	},
+	get LogInfoPlugin() {
+		return require("./LogInfoPlugin");
+	},
+	get forEachBail() {
+		return require("./forEachBail");
+	}
+});

node_modules/enhanced-resolve/lib/util/identifier.js

@@ -0,0 +1,26 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Ivan Kopeykin @vankop
+*/
+
+"use strict";
+
+const PATH_QUERY_FRAGMENT_REGEXP = /^(#?(?:\0.|[^?#\0])*)(\?(?:\0.|[^#\0])*)?(#.*)?$/;
+
+/**
+ * @param {string} identifier identifier
+ * @returns {[string, string, string]|null} parsed identifier
+ */
+function parseIdentifier(identifier) {
+	const match = PATH_QUERY_FRAGMENT_REGEXP.exec(identifier);
+
+	if (!match) return null;
+
+	return [
+		match[1].replace(/\0(.)/g, "$1"),
+		match[2] ? match[2].replace(/\0(.)/g, "$1") : "",
+		match[3] || ""
+	];
+}
+
+module.exports.parseIdentifier = parseIdentifier;

node_modules/enhanced-resolve/lib/util/path.js

@@ -0,0 +1,223 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+
+"use strict";
+
+const path = require("path");
+
+const CHAR_HASH = "#".charCodeAt(0);
+const CHAR_SLASH = "/".charCodeAt(0);
+const CHAR_BACKSLASH = "\\".charCodeAt(0);
+const CHAR_A = "A".charCodeAt(0);
+const CHAR_Z = "Z".charCodeAt(0);
+const CHAR_LOWER_A = "a".charCodeAt(0);
+const CHAR_LOWER_Z = "z".charCodeAt(0);
+const CHAR_DOT = ".".charCodeAt(0);
+const CHAR_COLON = ":".charCodeAt(0);
+
+const posixNormalize = path.posix.normalize;
+const winNormalize = path.win32.normalize;
+
+/**
+ * @enum {number}
+ */
+const PathType = Object.freeze({
+	Empty: 0,
+	Normal: 1,
+	Relative: 2,
+	AbsoluteWin: 3,
+	AbsolutePosix: 4,
+	Internal: 5
+});
+exports.PathType = PathType;
+
+/**
+ * @param {string} p a path
+ * @returns {PathType} type of path
+ */
+const getType = p => {
+	switch (p.length) {
+		case 0:
+			return PathType.Empty;
+		case 1: {
+			const c0 = p.charCodeAt(0);
+			switch (c0) {
+				case CHAR_DOT:
+					return PathType.Relative;
+				case CHAR_SLASH:
+					return PathType.AbsolutePosix;
+				case CHAR_HASH:
+					return PathType.Internal;
+			}
+			return PathType.Normal;
+		}
+		case 2: {
+			const c0 = p.charCodeAt(0);
+			switch (c0) {
+				case CHAR_DOT: {
+					const c1 = p.charCodeAt(1);
+					switch (c1) {
+						case CHAR_DOT:
+						case CHAR_SLASH:
+							return PathType.Relative;
+					}
+					return PathType.Normal;
+				}
+				case CHAR_SLASH:
+					return PathType.AbsolutePosix;
+				case CHAR_HASH:
+					return PathType.Internal;
+			}
+			const c1 = p.charCodeAt(1);
+			if (c1 === CHAR_COLON) {
+				if (
+					(c0 >= CHAR_A && c0 <= CHAR_Z) ||
+					(c0 >= CHAR_LOWER_A && c0 <= CHAR_LOWER_Z)
+				) {
+					return PathType.AbsoluteWin;
+				}
+			}
+			return PathType.Normal;
+		}
+	}
+	const c0 = p.charCodeAt(0);
+	switch (c0) {
+		case CHAR_DOT: {
+			const c1 = p.charCodeAt(1);
+			switch (c1) {
+				case CHAR_SLASH:
+					return PathType.Relative;
+				case CHAR_DOT: {
+					const c2 = p.charCodeAt(2);
+					if (c2 === CHAR_SLASH) return PathType.Relative;
+					return PathType.Normal;
+				}
+			}
+			return PathType.Normal;
+		}
+		case CHAR_SLASH:
+			return PathType.AbsolutePosix;
+		case CHAR_HASH:
+			return PathType.Internal;
+	}
+	const c1 = p.charCodeAt(1);
+	if (c1 === CHAR_COLON) {
+		const c2 = p.charCodeAt(2);
+		if (
+			(c2 === CHAR_BACKSLASH || c2 === CHAR_SLASH) &&
+			((c0 >= CHAR_A && c0 <= CHAR_Z) ||
+				(c0 >= CHAR_LOWER_A && c0 <= CHAR_LOWER_Z))
+		) {
+			return PathType.AbsoluteWin;
+		}
+	}
+	return PathType.Normal;
+};
+exports.getType = getType;
+
+/**
+ * @param {string} p a path
+ * @returns {string} the normalized path
+ */
+const normalize = p => {
+	switch (getType(p)) {
+		case PathType.Empty:
+			return p;
+		case PathType.AbsoluteWin:
+			return winNormalize(p);
+		case PathType.Relative: {
+			const r = posixNormalize(p);
+			return getType(r) === PathType.Relative ? r : `./${r}`;
+		}
+	}
+	return posixNormalize(p);
+};
+exports.normalize = normalize;
+
+/**
+ * @param {string} rootPath the root path
+ * @param {string | undefined} request the request path
+ * @returns {string} the joined path
+ */
+const join = (rootPath, request) => {
+	if (!request) return normalize(rootPath);
+	const requestType = getType(request);
+	switch (requestType) {
+		case PathType.AbsolutePosix:
+			return posixNormalize(request);
+		case PathType.AbsoluteWin:
+			return winNormalize(request);
+	}
+	switch (getType(rootPath)) {
+		case PathType.Normal:
+		case PathType.Relative:
+		case PathType.AbsolutePosix:
+			return posixNormalize(`${rootPath}/${request}`);
+		case PathType.AbsoluteWin:
+			return winNormalize(`${rootPath}\\${request}`);
+	}
+	switch (requestType) {
+		case PathType.Empty:
+			return rootPath;
+		case PathType.Relative: {
+			const r = posixNormalize(rootPath);
+			return getType(r) === PathType.Relative ? r : `./${r}`;
+		}
+	}
+	return posixNormalize(rootPath);
+};
+exports.join = join;
+
+const joinCache = new Map();
+
+/**
+ * @param {string} rootPath the root path
+ * @param {string | undefined} request the request path
+ * @returns {string} the joined path
+ */
+const cachedJoin = (rootPath, request) => {
+	let cacheEntry;
+	let cache = joinCache.get(rootPath);
+	if (cache === undefined) {
+		joinCache.set(rootPath, (cache = new Map()));
+	} else {
+		cacheEntry = cache.get(request);
+		if (cacheEntry !== undefined) return cacheEntry;
+	}
+	cacheEntry = join(rootPath, request);
+	cache.set(request, cacheEntry);
+	return cacheEntry;
+};
+exports.cachedJoin = cachedJoin;
+
+const checkImportsExportsFieldTarget = relativePath => {
+	let lastNonSlashIndex = 0;
+	let slashIndex = relativePath.indexOf("/", 1);
+	let cd = 0;
+
+	while (slashIndex !== -1) {
+		const folder = relativePath.slice(lastNonSlashIndex, slashIndex);
+
+		switch (folder) {
+			case "..": {
+				cd--;
+				if (cd < 0)
+					return new Error(
+						`Trying to access out of package scope. Requesting ${relativePath}`
+					);
+				break;
+			}
+			case ".":
+				break;
+			default:
+				cd++;
+				break;
+		}
+
+		lastNonSlashIndex = slashIndex + 1;
+		slashIndex = relativePath.indexOf("/", lastNonSlashIndex);
+	}
+};
+exports.checkImportsExportsFieldTarget = checkImportsExportsFieldTarget;

node_modules/enhanced-resolve/lib/util/process-browser.js

@@ -0,0 +1,16 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+
+"use strict";
+
+module.exports = {
+	versions: {},
+	nextTick(fn) {
+		const args = Array.prototype.slice.call(arguments, 1);
+		Promise.resolve().then(function () {
+			fn.apply(null, args);
+		});
+	}
+};