eslint.config.js

import { defineConfig, globalIgnores } from "eslint/config";
import globals from "globals";
import eslint from '@eslint/js';
import tseslint from 'typescript-eslint';

export default defineConfig([
  globalIgnores(["**/CMakeFiles/**"]),
  eslint.configs.recommended,
  tseslint.configs.recommended,
  {
    files: [
      "tests/**/*.js",
    ],
    languageOptions: {
      // Only allow ECMAScript built-ins and CTS harness globals.
      // This causes no-undef to flag any runtime-specific API (setTimeout, process, Buffer, etc.).
      globals: {
        ...globals.es2025,
        // CTS harness globals
        assert: "readonly",
        loadAddon: "readonly",
        mustCall: "readonly",
        mustNotCall: "readonly",
        gc: "readonly",
        gcUntil: "readonly",
        experimentalFeatures: "readonly",
        onUncaughtException: "readonly",
        napiVersion: "readonly",
        skipTest: "readonly",
      },
    },
    rules: {
      "no-undef": "error",
      "no-restricted-imports": [
        "error",
        {
          patterns: ["*"],
        },
      ],
      "no-restricted-syntax": [
        "error",
        {
          selector: "MemberExpression[object.name='globalThis']",
          message:
            "Avoid globalThis access in test files — use CTS harness globals instead",
        },
        {
          selector: "MemberExpression[object.name='global']",
          message:
            "Avoid global access in test files — use CTS harness globals instead",
        },
      ],
    },
  },
  {
    files: [
      "implementors/**/*.{js,ts}",
      "scripts/**/*.{js,mjs}",
    ],
    languageOptions: {
      globals: {
        ...globals.es2025,
        ...globals.node,
      },
    },
  },
]);