index.cjs

module.exports = {
  extends: [
    'eslint:all',
    'plugin:@typescript-eslint/all',
    'plugin:import/typescript',
    'plugin:functional/external-typescript-recommended',
    'plugin:functional/all',
    'prettier',
  ],
  plugins: ['import', 'eslint-comments', 'eslint-plugin-tsdoc', 'functional'],
  rules: {
    '@typescript-eslint/consistent-indexed-object-style': [
      'error',
      'index-signature',
    ],
    '@typescript-eslint/consistent-type-definitions': ['error', 'type'],
    '@typescript-eslint/explicit-function-return-type': 'off',
    '@typescript-eslint/explicit-module-boundary-types': 'off',
    '@typescript-eslint/max-params': 'error',
    '@typescript-eslint/naming-convention': [
      'error',
      {
        format: ['camelCase'],
        leadingUnderscore: 'allow',
        selector: 'default',
      },
      {
        format: ['camelCase', 'UPPER_CASE'],
        leadingUnderscore: 'allow',
        selector: 'variable',
      },
      { format: ['PascalCase'], selector: 'typeLike' },
      { selector: 'enumMember', format: ['camelCase', 'UPPER_CASE'] }, // Allow UPPER_CASE for opcodes
    ],
    '@typescript-eslint/no-loss-of-precision': ['error'],
    '@typescript-eslint/no-magic-numbers': [
      'error',
      {
        ignore: [-1, 0, 1, '-1n', '0n', '1n'],
        ignoreArrayIndexes: true,
        ignoreEnums: true,
        ignoreNumericLiteralTypes: true,
      },
    ],
    '@typescript-eslint/no-unused-vars': 'off', // already checked by TypeScript's noUnusedLocals and noUnusedParameters (this rule emits false positives on TSDoc `@link` usage)
    '@typescript-eslint/prefer-literal-enum-member': [
      'error',
      { allowBitwiseExpressions: true },
    ],
    '@typescript-eslint/prefer-readonly-parameter-types': 'off',
    '@typescript-eslint/restrict-template-expressions': [
      'error',
      { allowNumber: true },
    ],
    '@typescript-eslint/typedef': 'off',
    'capitalized-comments': 'off',
    complexity: ['error', 5],
    'default-case': 'off',
    'eslint-comments/disable-enable-pair': ['error', { allowWholeFile: true }],
    'eslint-comments/no-aggregating-enable': 'error',
    'eslint-comments/no-duplicate-disable': 'error',
    'eslint-comments/no-unlimited-disable': 'error',
    'eslint-comments/no-unused-disable': 'error',
    'eslint-comments/no-unused-enable': 'error',
    'eslint-comments/no-use': [
      'error',
      {
        allow: [
          'eslint-disable',
          'eslint-disable-line',
          'eslint-disable-next-line',
          'eslint-enable',
          'global',
        ],
      },
    ],
    'functional/functional-parameters': [
      'error',
      {
        allowArgumentsKeyword: false,
        allowRestParameter: false,
        enforceParameterCount: false,
      },
    ],
    'functional/no-conditional-statements': [
      'error',
      { allowReturningBranches: true },
    ],
    'functional/prefer-immutable-types': 'off',
    'functional/type-declaration-immutability': 'off',
    'id-length': 'off',
    'import/extensions': ['error', 'always'],
    'import/first': 'error',
    'import/newline-after-import': 'error',
    'import/no-absolute-path': 'error',
    'import/no-amd': 'error',
    'import/no-commonjs': 'error',
    'import/no-cycle': 'error',
    'import/no-default-export': 'error',
    'import/no-duplicates': 'error',
    'import/no-extraneous-dependencies': ['error', { devDependencies: true }],
    'import/no-internal-modules': ['error'],
    'import/no-mutable-exports': 'error',
    'import/no-named-default': 'error',
    'import/no-named-export': 'off',
    'import/no-self-import': 'error',
    'import/no-useless-path-segments': 'error',
    'import/order': [
      'error',
      { alphabetize: { order: 'asc' }, 'newlines-between': 'always' },
    ],
    'import/prefer-default-export': 'off',
    'line-comment-position': ['error', { ignorePattern: 'cspell' }],
    'max-lines': ['error', 1000],
    'max-lines-per-function': 'off',
    'max-params': 'off',
    'max-statements': 'off',
    'no-duplicate-imports': 'off',
    'no-inline-comments': 'off',
    'no-loss-of-precision': 'off',
    'no-nested-ternary': 'off',
    'no-ternary': 'off',
    'no-undefined': 'off',
    'no-warning-comments': 'off',
    'one-var': 'off',
    'sort-imports': [
      'error',
      { ignoreCase: true, ignoreDeclarationSort: true },
    ],
    'tsdoc/syntax': 'warn',
  },
};