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- /**
- * @author Toru Nagashima <https://github.com/mysticatea>
- * See LICENSE file in root directory for full license.
- */
- "use strict"
- const { READ, ReferenceTracker } = require("eslint-utils")
- module.exports = {
- meta: {
- docs: {
- description: "disallow the subclassing of the built-in classes.",
- category: "ES2015",
- recommended: false,
- url:
- "http://mysticatea.github.io/eslint-plugin-es/rules/no-subclassing-builtins.html",
- },
- fixable: null,
- messages: {
- forbidden: "ES2015 subclassing of '{{name}}' is forbidden.",
- },
- schema: [],
- type: "problem",
- },
- create(context) {
- return {
- "Program:exit"() {
- const tracker = new ReferenceTracker(context.getScope())
- for (const { node, path } of tracker.iterateGlobalReferences({
- Array: { [READ]: true },
- Boolean: { [READ]: true },
- Error: { [READ]: true },
- RegExp: { [READ]: true },
- Function: { [READ]: true },
- Map: { [READ]: true },
- Number: { [READ]: true },
- Promise: { [READ]: true },
- Set: { [READ]: true },
- String: { [READ]: true },
- })) {
- if (
- node.parent.type.startsWith("Class") &&
- node.parent.superClass === node
- ) {
- context.report({
- node,
- messageId: "forbidden",
- data: { name: path.join(".") },
- })
- }
- }
- },
- }
- },
- }
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