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