feat: add "eslint/universal" to export Linter (#18883)

* feat: add "eslint/universal" to export `Linter` fixes #18715 * fix: add lib/universal.js * feat: add typings * chore: add tests for "eslint/universal" types * Update lib/types/universal.d.ts Co-authored-by: Francesco Trotta <github@fasttime.org> * chore: update types tests --------- Co-authored-by: Francesco Trotta <github@fasttime.org>

Author: aladdin-add

eslint.config.js

@@ -200,7 +200,7 @@ module.exports = [
  {
  name: "eslint/lib",
  files: ["lib/*.js"],
- ignores: ["lib/unsupported-api.js"],
+ ignores: ["lib/unsupported-api.js", "lib/universal.js"],
  rules: {
  "n/no-restricted-require": ["error", [
  ...createInternalFilesPatterns()

lib/types/universal.d.ts

@@ -0,0 +1,6 @@
+/**
+ * @fileoverview typings for "eslint/universal" module
+ * @author 唯然<weiran.zsd@outlook.com>
+ */
+
+export { Linter } from "./index";

lib/universal.js

@@ -0,0 +1,10 @@
+/**
+ * @fileoverview exports for browsers
+ * @author 唯然<weiran.zsd@outlook.com>
+ */
+
+"use strict";
+
+const { Linter } = require("./linter/linter");
+
+module.exports = { Linter };

package.json

@@ -20,6 +20,10 @@
  },
  "./rules": {
  "types": "./lib/types/rules/index.d.ts"
+ },
+ "./universal": {
+ "types": "./lib/types/universal.d.ts",
+ "default": "./lib/universal.js"
  }
  },
  "scripts": {

tests/lib/types/types.test.ts

@@ -27,6 +27,7 @@
 
 import { AST, ESLint, Linter, loadESLint, Rule, RuleTester, Scope, SourceCode } from "eslint";
 import { ESLintRules } from "eslint/rules";
+import { Linter as ESLinter } from "eslint/universal";
 import {
  builtinRules,
  FileEnumerator,
@@ -579,6 +580,7 @@ rule = {
 // #region Linter
 
 const linter = new Linter();
+const eslinter = new ESLinter();
 
 linter.version;
 

tests/lib/universal.js

@@ -0,0 +1,21 @@
+/**
+ * @fileoverview Tests for "eslint/universal".
+ * @author 唯然<weiran.zsd@outlook.com>
+ */
+
+"use strict";
+const assert = require("node:assert/strict");
+
+describe("universal", () => {
+ it("should have Linter exported", () => {
+ const { Linter } = require("eslint/universal");
+
+ assert.ok(Linter);
+ assert.ok(typeof Linter === "function");
+
+
+ const linter = new Linter();
+
+ assert.ok(linter);
+ });
+});