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node_modules/enhanced-resolve/lib/SyncAsyncFileSystemDecorator.js

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+/*
+	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;
+
+	/** @type {FileSystem["lstat"] | undefined} */
+	this.lstat = undefined;
+	/** @type {SyncFileSystem["lstatSync"] | 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) {
+				// @ts-ignore
+				return (callback || options)(e);
+			}
+			// @ts-ignore
+			(callback || options)(null, result);
+		};
+		this.lstatSync = (arg, options) => lstatSync.call(fs, arg, options);
+	}
+	// @ts-ignore
+	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);
+	};
+	/** @type {SyncFileSystem["statSync"]} */
+	this.statSync = (arg, options) => fs.statSync(arg, options);
+	// @ts-ignore
+	this.readdir = (arg, options, callback) => {
+		let result;
+		try {
+			result = fs.readdirSync(arg);
+		} catch (e) {
+			return (callback || options)(e);
+		}
+		(callback || options)(null, result);
+	};
+	/** @type {SyncFileSystem["readdirSync"]} */
+	this.readdirSync = (arg, options) => fs.readdirSync(arg, options);
+	// @ts-ignore
+	this.readFile = (arg, options, callback) => {
+		let result;
+		try {
+			result = fs.readFileSync(arg);
+		} catch (e) {
+			return (callback || options)(e);
+		}
+		(callback || options)(null, result);
+	};
+	/** @type {SyncFileSystem["readFileSync"]} */
+	this.readFileSync = (arg, options) => fs.readFileSync(arg, options);
+	// @ts-ignore
+	this.readlink = (arg, options, callback) => {
+		let result;
+		try {
+			result = fs.readlinkSync(arg);
+		} catch (e) {
+			return (callback || options)(e);
+		}
+		(callback || options)(null, result);
+	};
+	/** @type {SyncFileSystem["readlinkSync"]} */
+	this.readlinkSync = (arg, options) => fs.readlinkSync(arg, options);
+	/** @type {FileSystem["readJson"] | undefined} */
+	this.readJson = undefined;
+	/** @type {SyncFileSystem["readJsonSync"] | 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) {
+				// @ts-ignore
+				return (callback || options)(e);
+			}
+			(callback || options)(null, result);
+		};
+		this.readJsonSync = (arg, options) => readJsonSync.call(fs, arg, options);
+	}
+}
+module.exports = SyncAsyncFileSystemDecorator;