SyncAsyncFileSystemDecorator.js
2.3 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
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;