source: imaps-frontend/node_modules/eslint/lib/rules/no-new-native-nonconstructor.js

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Last change on this file was d565449, checked in by stefan toskovski <stefantoska84@…>, 4 weeks ago

Update repo after prototype presentation

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1/**
2 * @fileoverview Rule to disallow use of the new operator with global non-constructor functions
3 * @author Sosuke Suzuki
4 */
5
6"use strict";
7
8//------------------------------------------------------------------------------
9// Helpers
10//------------------------------------------------------------------------------
11
12const nonConstructorGlobalFunctionNames = ["Symbol", "BigInt"];
13
14//------------------------------------------------------------------------------
15// Rule Definition
16//------------------------------------------------------------------------------
17
18/** @type {import('../shared/types').Rule} */
19module.exports = {
20 meta: {
21 type: "problem",
22
23 docs: {
24 description: "Disallow `new` operators with global non-constructor functions",
25 recommended: false,
26 url: "https://eslint.org/docs/latest/rules/no-new-native-nonconstructor"
27 },
28
29 schema: [],
30
31 messages: {
32 noNewNonconstructor: "`{{name}}` cannot be called as a constructor."
33 }
34 },
35
36 create(context) {
37
38 const sourceCode = context.sourceCode;
39
40 return {
41 "Program:exit"(node) {
42 const globalScope = sourceCode.getScope(node);
43
44 for (const nonConstructorName of nonConstructorGlobalFunctionNames) {
45 const variable = globalScope.set.get(nonConstructorName);
46
47 if (variable && variable.defs.length === 0) {
48 variable.references.forEach(ref => {
49 const idNode = ref.identifier;
50 const parent = idNode.parent;
51
52 if (parent && parent.type === "NewExpression" && parent.callee === idNode) {
53 context.report({
54 node: idNode,
55 messageId: "noNewNonconstructor",
56 data: { name: nonConstructorName }
57 });
58 }
59 });
60 }
61 }
62 }
63 };
64
65 }
66};
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