Before You File a Proposal Please Confirm You Have Done The Following...

• I have searched for related issues and found none that match my proposal.
• I have searched the current rule list and found no rules that match my proposal.
• I have read the FAQ and my problem is not listed.

Relevant Package

eslint-plugin

My proposal is suitable for this project

• I believe my proposal would be useful to the broader TypeScript community (meaning it is not a niche proposal).

Description

I propose the addition of lazy loading support for rule definitions. As the number of rules grows, it becomes increasingly inefficient to load them all at once. Currently, all rules are loaded eagerly, which can lead to unnecessary memory usage and slower startup times, especially for configurations that use only a subset of rules (e.g., non-type-checking). Additionally, the lack of this mechanism breaks the lazy loading already implemented in the ESLint repository - all rules in the current repository that use the getESLintCoreRule utility eagerly load core rules.

Additional Info

ESLint Config

import tseslint from 'typescript-eslint';

export default tseslint.config({
  files: ['**/*.ts'],
  extends: [tseslint.configs.base],
});

eslint ./index.ts --debug

Expected Result

no eslint rules loaded

Actual Result

  ...
  eslint:rules Loading rule 'consistent-return' (remaining=289) +0ms
  eslint:rules Loading rule 'dot-notation' (remaining=288) +13ms
  eslint:rules Loading rule 'init-declarations' (remaining=287) +5ms
  eslint:rules Loading rule 'max-params' (remaining=286) +1ms
  eslint:rules Loading rule 'no-dupe-class-members' (remaining=285) +16ms
  eslint:rules Loading rule 'no-empty-function' (remaining=284) +4ms
  eslint:rules Loading rule 'no-invalid-this' (remaining=283) +10ms
  eslint:rules Loading rule 'no-loop-func' (remaining=282) +1ms
  eslint:rules Loading rule 'no-loss-of-precision' (remaining=281) +1ms
  eslint:rules Loading rule 'no-magic-numbers' (remaining=280) +1ms
  eslint:rules Loading rule 'no-restricted-imports' (remaining=279) +15ms
  eslint:rules Loading rule 'no-unused-expressions' (remaining=278) +32ms
  eslint:rules Loading rule 'no-useless-constructor' (remaining=277) +2ms
  eslint:rules Loading rule 'prefer-destructuring' (remaining=276) +7ms
  ...