no-new-func.js
1.63 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
/**
* @fileoverview Rule to flag when using new Function
* @author Ilya Volodin
*/
"use strict";
//------------------------------------------------------------------------------
// Rule Definition
//------------------------------------------------------------------------------
module.exports = {
meta: {
type: "suggestion",
docs: {
description: "disallow `new` operators with the `Function` object",
category: "Best Practices",
recommended: false,
url: "https://eslint.org/docs/rules/no-new-func"
},
schema: [],
messages: {
noFunctionConstructor: "The Function constructor is eval."
}
},
create(context) {
return {
"Program:exit"() {
const globalScope = context.getScope();
const variable = globalScope.set.get("Function");
if (variable && variable.defs.length === 0) {
variable.references.forEach(ref => {
const node = ref.identifier;
const { parent } = node;
if (
parent &&
(parent.type === "NewExpression" || parent.type === "CallExpression") &&
node === parent.callee
) {
context.report({
node: parent,
messageId: "noFunctionConstructor"
});
}
});
}
}
};
}
};